book of abstract and aasec program

Bandung, November 18, 2016

i

Preface: The 1st Annual Applied Science and Engineering

Conference (AASEC 2016)

We are pleased to welcome all of the participants to The 1st Annual Applied Science and

Engineering Conference (AASEC 2016). AASEC 2016 is hosted by the UPI Publication

Center (Tim Pengembang Jurnal), Universitas Pendidikan Indonesia.

AASEC 2016 is motivated by improving the quality of research and development relating to

the applied science and engineering. The purposes of this conference are: (1) To bring

together the scientists, engineers, researchers and practitioners, students, and civil society

organization representatives in the scientific forum. (2) To share and to discuss theoretical

and practical knowledge about innovation in applied science and engineering. Specifically,

this conference can be used as a scientific forum for accommodating discussion among

young researchers in the field of applied science and engineering. Therefore, the speakers in

this conference are young researchers that are well-known and reputable in the world.

To all participants, we hope that you will learn new subjects, make new contacts, and have

fruitful discussion with others. To overseas participants, we wish you a pleasant stay in

Bandung.

Finally, we wish to express our sincere appreciation to all of the presenters for their valuable

contributions and also to the members of the program committee for their excellent works in

selecting abstract and organizing the program.

November, 2016

AASEC 2016 Committee

ii


Welcome Message

From Rector of Universitas Pendidikan Indonesia

Invited Speakers, Distinguished Guests, Presenters, and Participants of the The 1st Annual

Applied Science and Engineering Conference (AASEC 2016).

It gives me a great honor to extend to you all a very warm welcome to Bandung, Indonesia,

on behalf of Universitas Pendidikan Indonesia. It is an opportune time for all of us to renew

contacts and discuss problems of mutual interest in the field of technical and vocational

education and training with fellows across the globe.

The conference is organized by the UPI Publication Center, Universitas Pendidikan

Indonesia. Under the main theme “Empowering Young Researchers in the Field of Science

and Engineering". The conference will be organized along the sub-themes in the applied

science and engineering, including several sub topics.

I am pleased to let you know that the purposes of this conference are: (1) To bring together

the scientists, engineers, researchers and practicioners, students, and civil society

organization representatives in the scientific forum. (2) To share and to discuss theoretical

and practical knowledge about innovation in applied science and engineering. Specifically,

this conference can be used as a scientific forum for accommodating discussion among

young researchers in the field of applied science and engineering. Therefore, the invited

speakers in this conference are young researchers that are well-known and reputable in the

world.

I realize that you are fully dedicated to the sessions that will follow but I do hope you will

also take time to enjoy the fascinating Bandung with its tropical setting, friendly people,

adventurous tourism destinations, and delicious cuisines.

Finally, I would like to express our heartfelt thanks to the Scientific and Organizing

Committee for enabling this to take place and to everybody who comes to this conference. I

wish we will have a very productive and successful conference.

Thank you.


Rector of UPI

Professor Furqon, M.A., Ph.D.


iii

THE COMMITTEE OF AASEC 2016

Streering

Committee

Chairman

Technical Chairman

:

Dr. Ade Gafar Abdullah

Dr. Eng. Asep Bayu Dani Nandiyanto

Scientific

Committee

:

Prof. Dr. Asep Kadarohman, Universitas Pendidikan Indonesia,

Indonesia

Prof. Yaya S. Kusumah, Ph.D, Universitas Pendidikan Indonesia,

Indonesia

Prof. Dr. Anna Permanasari, Universitas Pendidikan Indonesia,

Indonesia

Prof. Dr. Sumarto, Universitas Pendidikan Indonesia, Indonesia

Prof. Dr. M. Syaom Barliana, Universitas Pendidikan Indonesia,

Indonesia

Prof. Dr. Ratih Hurriyati, Universitas Pendidikan Indonesia,

Indonesia

Mahyuddin KM Nasution, M.I.T. Ph.D, Universitas Sumatera Utara,

Indonesia

Dr. Eng. Himsar Ambarita, Universitas Sumatera Utara, Indonesia

Emerson P. Sinulingga, ST, M.Sc, Ph. D, Universitas Sumatera

Utara, Indonesia

Saharman Gea, Ph. D, Universitas Sumatera Utara, Indonesia

Dr. Zulfan Adi Putra, TMC Chemical, Eindhoven

Dr. Eng. Sidik Permana, Institut Teknologi Bandung, Indonesia

Dr. Eng. Tedi Kurniawan, University Malaysia Pahang, Malaysia

Dr. M. Roil Bilad, Nanyang, Technological University, Malaysia

Dr. Eng. Topan Setiadipura, Badan Tenaga Atom Nasional- BATAN,

Indonesia

Dr. Oki Muraza, King Fahd University of Petroleum and Minerals,

Saudi Arabia

Dr. Farid Fadhillah, Al Imam Mohammad bin Saud Islamic

University, Saudi Arabia

Syeilendra Pramuditya, Ph.D, Institut Teknologi Bandung, Indonesia

Dr. Suryono, Universitas Diponegoro, Indonesia

Dr. Artoto Arkundanto, Universitas Jember, Indonesia

Dr. Mochamad Ali Shafii, Universitas Andalas, Indonesia

Dr. Yanti Yulianti, Universitas Lampung, Indonesia

Dr. Yulkifli Amir, Universitas Negeri Padang, Indonesia

iv


Dr. Mahardika Prasetya Aji, Universitas Negeri Semarang, Indonesia

Dr. Fiber Manado, Universitas Sriwijaya, Indonesia, Indonesia

Dr. Eng. Siti Sendari, Universitas Negeri Malang, Indonesia

Dr. Ida Hamidah, Universitas Pendidikan Indonesia, Indonesia

Dr. Budi Mulyanti, Universitas Pendidikan Indonesia, Indonesia

Dr. Rizki Rosjanuardi, Universitas Pendidikan Indonesia, Indonesia

Dr. Sc. Topik Hidayat, Universitas Pendidikan Indonesia, Indonesia

Tutin Aryanti, Ph. D, Universitas Pendidikan Indonesia, Indonesia

Dr. Eng. Beta Paramita, Universitas Pendidikan Indonesia, Indonesia

Dr. Eng. Usep Surachman, Universitas Pendidikan Indonesia,

Indonesia

Dr. Selly Feranie, Universitas Pendidikan Indonesia, Indonesia

Dr. Lilik Hasanah, Universitas Pendidikan Indonesia, Indonesia

Technical

Assistance

:

Agus Juhana

Handa Subagja

Indah Rahmawati, S.Pd.

Muhammad Nurulloh, S.Pd.

Nishrina, S.T.

Ranti Damayanti, S.T.

Rena Zaen

Danil Efsya Putra

Diky Zakaria, S.Pd.

Ismi Dzakiyyah Azizah, S.T.

Leila Noor Gayatri, S.T.

Nia Amelia, S.Pd.

Suhendar Aryadi

Wildan Arasid


v

AASEC 2016 PROGRAM

Friday, November 18, 2016

Time Event Venue

07.00-08.00 Registration Registration

Counter

08.00-09.45 Parallel A Room 1-10

09:45-10:00 Coffee Break I Main hall

10:00-10:30

Opening Ceremony

Main hall Chairman of AASEC

Rector of UPI

10:30-11:45

Plenary Session 1

Main hall

Information Engineering :

Assoc. Prof. Shinobu Hasegawa

Architecture :

Tutin Ariyanti, Ph.D

Chemistry :

Dr. Muhammad Roil Bilad

Discussion

12:00-13:00 Lunch and Pray Time

13:00-14:30

Plenary Session 2

Main hall

Chemistry :

Zulfan Adi Putra, PdEng

Physics :

Dr. Eng. Sidik Permana

Material Engineering:

Dr. Eng. Tedi Kurniawan

Biology :

Topik Hidayat, Ph.D

Discussion

14:30-14:45 Coffee Break II Main hall

14:45-16:45 Parallel B Room 1-10

16:30-17:00 Closing Main hall

vi


PARALLEL SESSION A SCHEDULE

Venue

Time R-01 R-02 R-03 R-04 R-05

08.10–08.20 A-01-01 A-02-01 A-03-01 A-04-01 A-05-01

08.20–08.30 A-01-02 A-02-02 A-03-02 A-04-02 A-05-02

08.30–08.40 A-01-03 A-02-03 A-03-03 A-04-03 A-05-03

08.40–08.50 A-01-04 A-02-04 A-03-04 A-04-04 A-05-04

08.50–09.00 A-01-05 A-02-05 A-03-05 A-04-05 A-05-05

09.00–09.10 A-01-06 A-02-06 A-03-06 A-04-06 A-05-06

09.10–09.20 A-01-07 A-02-07 A-03-07 A-04-07 A-05-07

09.20–09.30 A-01-08 A-02-08 A-03-08 A-04-08 A-05-08

09.30–09.40 A-01-09 A-02-09 A-03-09 A-04-09 A-05-09

Venue

Time R-06 R-07 R-08 R-09 R-10

08.10–08.20 A-06-01 A-07-01 A-08-01 A-09-01 A-10-01

08.20–08.30 A-06-02 A-07-02 A-08-02 A-09-02 A-10-02

08.30–08.40 A-06-03 A-07-03 A-08-03 A-09-03 A-10-03

08.40–08.50 A-06-04 A-07-04 A-08-04 A-09-04 A-10-04

08.50–09.00 A-06-05 A-07-05 A-08-05 A-09-05 A-10-05

09.00–09.10 A-06-06 A-07-06 A-08-06 A-09-06 A-10-06

09.10–09.20 A-06-07 A-07-07 A-08-07 A-09-07 A-10-07

09.20–09.30 A-06-08 A-07-08 A-08-08 A-09-08 A-10-08

09.30–09.40 A-06-09 A-07-09 A-08-09 - -


vii

PARALLEL SESSION B SCHEDULE

Venue

Time R-01 R-02 R-03 R-04 R-05

14.50–15.00 B-01-01 B-02-01 B-03-01 B-04-01 B-05-01

15.00–15.10 B-01-02 B-02-02 B-03-02 B-04-02 B-05-02

15.10–15.20 B-01-03 B-02-03 B-03-03 B-04-03 B-05-03

15.20–15.30 B-01-04 B-02-04 B-03-04 B-04-04 B-05-04

15.30–15.40 B-01-05 B-02-05 B-03-05 B-04-05 B-05-05

15.40–15.50 B-01-06 B-02-06 B-03-06 B-04-06 B-05-06

15.50–16.00 B-01-07 B-02-07 B-03-07 B-04-07 B-05-07

16.00–16.10 B-01-08 B-02-08 B-03-08 B-04-08 B-05-08

16.10–16.20 B-01-09 B-02-09 B-03-09 B-04-09 B-05-09

16.20–16.30 B-01-10 B-02-10 B-03-10 B-04-10 B-05-10

16.30–16.40 B-01-11 B-02-11 B-03-11 B-04-11 B-05-11

Venue

Time R-06 R-07 R-08 R-09 R-10

14.50–15.00 B-06-01 B-07-01 B-08-01 B-09-01 B-10-01

15.00–15.10 B-06-02 B-07-02 B-08-02 B-09-02 B-10-02

15.10–15.20 B-06-03 B-07-03 B-08-03 B-09-03 B-10-03

15.20–15.30 B-06-04 B-07-04 B-08-04 B-09-04 B-10-04

15.30–15.40 B-06-05 B-07-05 B-08-05 B-09-05 B-10-05

15.40–15.50 B-06-06 B-07-06 B-08-06 B-09-06 B-10-06

15.50–16.00 B-06-07 B-07-07 B-08-07 B-09-07 B-10-07

16.00–16.10 B-06-08 B-07-08 B-08-08 B-09-08 B-10-08

16.10–16.20 B-06-09 B-07-09 B-08-09 B-09-09 B-10-09

16.20–16.30 B-06-10 B-07-10 B-08-10 B-09-10 B-10-10

16.30–16.40 B-06-11 B-07-11 B-08-11 B-09-11 B-10-11

viii


LIST OF KEYNOTE SPEAKER

No Title Author(s)

1 How to Cultivate Young Researches Skills

in Field of Science and Technology

Assoc. Prof. Shinobu Hasegawa

2 Working Across Borders: Interdisciplinary

Approach in Architectural Studies

Tutin Aryanti, Ph. D

3 Recent Advancedin Membrane Bioreactor

for Wastewater Treatment

Dr. Muhammad Roil Bilad

4 Early Phase Process Evaluation : Industrial

Practices

Zulfan Adi Putra,Pd Eng

5 Nuclear Energy Utilization and Potential

Indonesia Nuclear Program in RnD and

Industry

Dr. Eng. Sidik Permana

6 High Temperature Oxidation in Steam

Environment

Dr. Eng. Tedi Kurniawan

7 Biodiversity Study in the Omic Era:

Provide Knowledge for Innovation

Topik Hidayat, Ph.D


ix

LIST OF ABSTRACT

Architecture

No

Presen

tation

Code

Manus

cript

Code

Title Author(s) Page

1 B-09-

06

EN-19-

01

Can Architecture Design Solve

Social Problem?

S.W. Ginting;

E.T.S.B.

Darjosanjoto; et.

al.

2

2 B-09-

07

EN-19-

02

Socio-Cultural Impacts In the

Formation Of Urban Village

B.O.Y.

Marpaung. 3

3 B-09-

08

EN-19-

03

Architecture and Monumental (study

about form in architecture)

I.F. Pane; H.

Suwantoro; et.

al.

4

4 B-09-

09

EN-19-

04

Improving Urban Corridor that

Respect to Public Space

W. Zahrah; N.

Rahmadhani. 5

5 B-09-

10

EN-19-

05

The Determinants Factors of

Regional Development Toward Land

use Change in Deli Serdang

D. Lindarto H;

Sirojuzilam;

Badaruddin; et.

al.

6

6 B-10-

01

EN-19-

06

Tourism Development Basd on

Geopark in Bakkara Caldera Toba,

Indonesia

N. Ginting; N.V.

Rahman; et. al. 7

7 B-10-

02

EN-19-

07

Identification Of Increasing Green

Behavior In Citraland Bagya City,

Medan

D.N. Aulia;

B.O.Y

Marpaung; et. al.

8

8 B-10-

03

EN-19-

08

The Implementation of Aerotropolis

Concept on New Town Planning and

Design in Mebidangro, Sumatera

Utara

A.D. Nasution;

D.D.

Harisdani;et. al.

9

9 B-10-

04

EN-19-

09

Cultural Mapping of the Heritage

Districts in Medan, North Sumatra

I. Fitri; Ratna; et.

al. 10

10 B-10-

05

EN-19-

011

Urban Farming Community Space:

an Idea to Overcome The Decreasing

of Agricultural Land in Kitakyushu,

Japan

T.C. Julian, B.

Paramit. 11

x


No

Presen

tation

Code

Manus

cript

Code


11 B-10-

06

EN-19-

012

The Implementation of Floor-Area

Ratio in the Eastern Corridor of

Jalan Ir.H.Djuanda Bandung

L. Widaningsih;

T. Megayanti; et.

al.

12

12 B-10-

07

EN-19-

013

Islamic Modernism And

Architectural Modernism Of

Muhammadiyah’s Lio Mosque

A.F.

Prajawisastra; T.

Aryanti

13

13 B-10-

08

EN-19-

014

The Salman Mosque : Achmad

Noe’man’s Critique of Indonesian

Conventional Mosque Architecture

A.A.R. Holik; T.

Aryanti 14

14 B-07-

10

EN-19-

015

Designing Using Lego and Uno-

Stacko: A Playful Architecture for an

Integrated Kindergarten and

Elementary School

K. Muthmainah;

T. Aryanti; et. al. 15

15 B-07-

11

EN-19-

016

The Domes : Elwakil’s Taditionalist

Architecture of Quba Mosque

A.A. Macca; T.

Aryanti. 16

Biochemistry

No

Presen

tation

Code

Manus

cript

Code


1 A-08-

02

AS-14-

01

Decreasing Free Radicals Level on

High Risk Person after Vitamin C

and E Supplement Treatment

M.S. Sitorus;

D.R. Anggraini;

et. al.

17

2 - AS-14-

02

Effect of Oral Administration of

Tungsten Trioxide (Wo3) Particles

Hispathological Feature of Liver and

Kidney in Rat

A.B.D.

Nandiyanto;

H.S.H.

Munawaroh; et.

al.

18

3 A-08-

04

AS-14-

03

Nutrient Intake, Apolipoprotein A5 -

1131t>C Polymorphism and Its

Relationship with Obesity

S.M. Indah. 19


xi

No

Presen

tation

Code

Manus

cript

Code


4 A-08-

05

AS-14-

04

Potential of Basidiomcetous Fungi

Isolated from Gunung Barus Forest

North Sumatera in Decolorization of

Wastewater of Textile Industry

E. Munir; N.

Priyani; et. al. 20

5 A-08-

06

AS-14-

05

Microencapsulation of Limonin from

Orange Juice Waste using

Maltodextrin

D. Cakrawati;

M.N.

Handayani; et.

al.

21

6 A-08-

07

AS-14-

06

Microbial Reduction Of Cr (Vi) in to

Cr (Iii) by Locally Isolated

Pdeudomonas Aeruginosa

H.S.H.

Munawaroh;

G.G. Gumilar;

et. al.

22

7 A-05-

09

AS-14-

07

Development and Characterization of

Chitosan-TPP Nanoparticles for

Delivery of Double-Stranded Small

Interference RNA (Ds Sirna) Myd88

In Vivo

D. Kusumawaty;

S. Suhandono;

et. al.

23

8 A-06-

09

AS-14-

08

The Effect of Turmeric Rhizome

(Curcuma Xanthorrhiza) on

Reproductive Aspect of Male Mice

(Mus Musculus) Swiss Webster

D. Priyandoko;

Ernawati; et. al. 24

9 A-07-

09

AS-14-

09

Analysis of Rural People's

Knowledge about Medicinal Plants

that are Beneficial to Health

Ernawati; D.

Priyandoko; et.

al.

25

BioMedical Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-10-

09

EN-10-

01

Developing Expert System for

Tuberculosis Diagnose to Support

Knowledge Sharing in the Era of

National Health Insurance System

L. Lidya. 26

xii


No

Presen

tation

Code

Manus

cript

Code


2 B-10-

10

EN-10-

02

Physicochemical Characteristics of

Mung Bean Kefir with Variation

Levels of Skim Milk and

Fermentation Time

I. Sadiah; L.

Liawati; et. al. 27

Chemical Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-02-

05

EN-02-

01

The Use of Mango Seed Arum Manis

Type (Mangifera Indica L) as

Biosorbent

S. Pandia; S.

Amien; et. al. 28

2 B-02-

06

EN-02-

02

Characterization of Sodium

Carbonate (Na2CO3) Treated Rice

Husk Activated Carbon and

Adsorption of Lead from Car Battery

Wastewater

F. Hanum; O.

Bani; et. al. 29

3 B-02-

07

EN-02-

03

Effect of Turning Frequency on

Composting of Empty Fruit Bunches

Mixed with Activated Liquid

Organic Fertilizer

B. Trisakti; J.

Lubis; et. al. 30

4 B-02-

08

EN-02-

04

Characterization of Activated Carbon

from Rice Husk by HCl Activation

and Its application for Lead (Pb)

Removal in Car Battery Wastewater

F. Hanum; O.

Bani; et. al. 31

5 B-02-

09

EN-02-

05

The Effect of Operating Conditions

on Drying Characteristics and

Quality of Ginger (Zingiber

Officinale Roscoe) Using

Combination of Solar Energy -

Molecular Sieve Drying System

R. Hasibuan;

M.A. Zamzami. 32

6 B-02-

10

EN-02-

06

The Produce of Methyl Ester from

Crude Palm Oil (CPO) Using

Heterogene Catalyst Ash of Chicken

Bone (CaO) Using Ethanol as

Solvent

M.S. Sinaga; R.

Fauzi; et. al. 33


xiii

No

Presen

tation

Code

Manus

cript

Code


7 B-02-

11

EN-02-

07

Effect of Hydro Chloric Acid

Concentration as Chitosan Solvent on

Mechanical Properties of Bioplastics

from Durian Seed Starch (Durio

Zibethinus) with Filler Chitosan and

Plasticizer Sorbitol

M.H.S. Ginting;

R. Hasibuan; et.

al.

34

8 B-03-

01

EN-02-

09

Effect of Agitation on Acidogenesis

Stage of Two-Stage Anaerobic

Digestion of Palm Oil Mill Effluent

(POME) into Biogas

B. Trisakti (a*),

Irvan(a), H.

Adipasah(a),

Taslim(a), and

M. Turmuzi(a)

35

9 B-03-

02

EN-02-

10

Preparation of Activated Carbon

from Palm Shells Using KOH and

ZnCl2 as the Activating Agent

Yuliusman;

Nasruddin; et. al. 36

10 B-03-

03

EN-02-

11

Removal of metal Iron from Ground

Water Using Aceh Natural Zeolite

and Membrane Filtration

S. Mulyati;

Nasrul; et. al. 37

11 B-03-

04

EN-02-

12

Effects of PEG Molecular Weights

on PVDF Membrane for Humic Acid

Fed Ultrafiltration Process

Syawaliah; N.

Arahman; et. al. 38

12 B-03-

05

EN-02-

13

Influence of Brij58 on the

Characteristic and Performance of

PES Membrane for Water Treatment

Process

Mukramah;

Syawaliah; et. al. 39

13 B-03-

06

EN-02-

14

Aspen Hysys Simulation for

Biodiesel Production from Waste

Cooking Oil using Membrane

Raector

Y.B.

Abdurakhman;

Z.A. Putra; et. al.

40

14 B-03-

07

EN-02-

15

Role of Surface Pores on Fouling of

Polyvinylidene Fluoride Membranes

in Submerged Membrane Bioreactors

M.R. Bilad; J

Druyts; et. al. 41

xiv


No

Presen

tation

Code

Manus

cript

Code


15 - EN-02-

16

Synthesis of Potassium Silicate

Nanoparticles from Rice Straw Ash

Using A Flame-assisted Spray-

pyrolysis Method

A. B. D.

Nandiyanto;

N. Permatasari;

et al.

42

16 - EN-02-

17

Changes in Meteorological

Parameters (I.E. UV and Solar

Radiation, Air Temperature,

Humidity, and Wind Condition)

During the Partial Solar Eclipse of 9

March 2016

B Paramitha;

R Zaen;

et. al.

43

17 - EN-02-

18

Behavior of Photovoltaic during the

Partial Solar Eclipse in Bandung

A. B. D.

Nandiyanto;

A. Rusli;

et. al.

44

Chemistry

No

Presen

tation

Code

Manus

cript

Code


1 A-04-

06

AS-05-

02

Application of Epichlorohydrin

Crosslinked Chitosan/Eggshell

Composite as an Adsorbent for Cd

ions Removal from Aqueous

Solutions

Rahmi; Marlina. 45

2 A-04-

07

AS-05-

03

Synthesis of Polyurethanes

Membranes from Rubber Seed Oil

and Methylene Diphenyl

Diisocyanates (MDI)

Marlina; S.

Nurman; et. al. 46

3 A-04-

08

AS-05-

04

Comparison of Microcrystalline

Characterization Results from Palm

Midrib Alpha Cellulose Using

Different Delignization Method

S. Yuliasmi;

T.R. Pardede; et.

al.

47

4 A-04-

09

AS-05-

05

Characterization of Microcrystalline

from Pineapple Leaf (Ananas

comosus L. Merr)

S. Yuliasmi;

Nerdy; et. al. 48


xv

No

Presen

tation

Code

Manus

cript

Code


5 A-05-

01

AS-05-

06

Preliminary Study of Water

Repellent Properties of Red Pepper

Seed Oil

N.C. Wahyulis;

K.A. Madurani;

et. al.

49

6 - AS-05-

07

Decomposition Behavior of

Curcumin during Solar Irradiation

when Contact with Inorganic

Particles

A B D

Nandiyanto;

A S Wiryani;

at.al

50

7 - AS-10-

10

Extraction of Curcumin Pigment

from Indonesian Local Turmeric with

Its Infrared Spectra and Thermal

Decomposition Properties

A. B. D.

Nandiyanto;

A. S. Wiryani;

et. al.

51

8 - AS-05-

09

Solution Concentration and Flow

Rate of Fe3+-modified Porphyrin

(Red Blood Model) on Giant

Magnetoresistance (GMR) Sensor

Efficiency

A. Aminudin;

D. H. Tjahyono;

et. al.

52

9 - AS-05-

10

Preparation of Potassium-Posphate-

embedded Amorphous Silicate

Material from Rice Straw Waste

A. B. D.

Nandiyanto;

N. Permatasari;

et. al.

53

Civil Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-03-

08

EN-03-

01

Experimental Study on the Impact of

Rain Water Puddle of Asphalt

Pavement Structure

F. Chairuddin. 54

2 B-03-

09

EN-03-

02

The Estimation of Compaction

Parameter Values Based on Soil

Properties Values Stabilized with

Portland Cement

A.S. Lubis; Z.A.

Muis; et. al. 55

3 B-03-

10

EN-03-

03

Determination of Route Delivery in

the Logistic Service Provider (LSP)

by Reviewing the Performance of

Street in the City of Malang

I.W. Agustin; Y.

Sumantri. 56

xvi


No

Presen

tation

Code

Manus

cript

Code


4 B-03-

11

EN-03-

04

The Utilization of Volcanic Ash and

Rice Husk Ash as Material

Stabilization in Clay by Unconfined

Compression Test (Uct) and

California Bearing Ratio Test (CBR)

I.P. Hastuty; I.S.

Sembiring. 57

5 B-04-

01

EN-03-

05

Sinabung Volcanic Ash Utilization as

The Additive for Paving Blocks

Quality A and B

I.S. Sembiring;

I.P. Hastuty. 58

6 B-04-

02

EN-03-

06

Characteristic of Modal Choice

Preference between Bus and Train

from Medan to Kuala Namu Airport

M.S. Surbakti,

C. Bombongan 59

7 B-04-

03

EN-03-

07

Study of Road Maintenance Program

Priority, using the Analytical

Network Process

M.S. Surbakti;

K.C. Harefa. 60

8 B-04-

04

EN-03-

08

Comparison of Seismic Responses

for Reinforced Concrete Buildings

with Mass and Stiffness Irregularities

using Pushover and Nonlinear Time

History Analysis

D.R. Teruna. 61

Computer and Communication Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-08-

08

EN-17-

01

UDP-Lite Enhancement Through

Checksum Protection

Suherman; H.

Abdurrahman. 62

2 B-08-

09

EN-17-

02

Designing Rules for Accounting

Transaction Identification based on

Indonesian NLP

I. Iswandi; I.S.

Suwardi; et. al. 63


xvii

No

Presen

tation

Code

Manus

cript

Code


3 B-08-

10

EN-17-

03

A Review of Big Graph Mining

Research I. Atastina. 64

4 B-09-

01

EN-17-

04

Reducing the Conflict Factors

Strategies in Question Answering

System

W.

Suwarningsih;

A. Purwarianti;

et. al.

65

5 B-09-

02

EN-17-

05

Comparative Study on the Different

Testing Techniques in Tree

Classification for Detecting the

Learning Motivation

C. Juliane; A.A.

Arman; et. al. 66

6 B-09-

03

EN-17-

06

Game Multimedia in Numeracy

Learning for Elementary School

Students

D.Rohendi; N.

Sumarna. 67

7 B-09-

04

EN-17-

07

Design of Vivaldi Microstrip

Antenna for Ultra-Wideband Radar

Applications

M.Y. Perdana;

T. Hariyadi; et.

al.

68

Computer Science

No

Presen

tation

Code

Manus

cript

Code


1 A-01-

08

AS-03-

01

Satellite Image Edge Detection for

Population Distribution Pattern

Identification Using Levelset with

Morphological Filtering Process

Harsiti; T.A.

Munandar; et. al. 69

2 A-01-

09

AS-03-

02

Implementation of Electre Method in

Determining the Priority of a

Sustainable Tourist Attraction

Development in Gorontalo Regency

N.N. Sune; M.

Rohandi; et. al. 70

3 A-02-

01

AS-03-

03

Geographical Information System

Model for Potential Mines Data

Management Presentation in

Kabupaten Gorontalo

R.H Dai; T.

Abdillah; et. al. 71

xviii


No

Presen

tation

Code

Manus

cript

Code


4 A-02-

02

AS-03-

04

Artificial Neural Network for

Monthly Rainfall Rate Prediction

H.D. Purnomo;

K.D. Hartomo;

et. al.

72

5 A-02-

03

AS-03-

05

Decision Support Systems for

Perfromance Evaluating General

English Program Teacher Using

Smarter and Topsis Method

Rasim; E.F.

Rahman; et. al. 73

6 A-02-

04

AS-03-

07

Hierarchical Regional Disparities and

Potential Sector Identification Using

Modified Agglomerative Clustering

T.A. Munandar;

Azhari SN; et.

al.

74

7 A-02-

05

AS-03-

08

Distributed Rendering on

Volunteered Mobile Resources

J.T. Tarigan; I.

Jaya; et. al. 75

8 A-02-

06

AS-03-

09

Optimizing Libraries’ Content

Findability Using Simple Object

Access Protocol (Soap) with Multi-

Tier Archicecture

A. Lahinta; I.

Haris; et. al. 76

9 A-02-

07

AS-03-

10

GEODATA: Information System

Based on Geospatial for Early

Warning Tracking and Analysis

Agricultural Plant Diseases in

Central Java

S.Y.J Prasetyo;

Y.H. Agus; et.

al.

77

10 A-02-

08

AS-03-

11

The Usage Evaluation of Indonesian

Official Computer Terms in Bahasa

Indonesia in Goverment Official

Websites

Amalia; D.

Gunawan; et. al. 78

11 A-02-

09

AS-03-

12

Recognition of Roasted Coffee Bean

Levels Using Image Processing and

Neural Network

T.H. Nasution;

U. Andayani. 79

12 A-03-

01

AS-03-

13

KINECTATION (Kinect for

Presentation): Control Presentation

with Interactive Board and Record

Presentation with Live Capture

Tools

R. Sutoyo;

Herriyandi; et.

al.

80

13 A-03-

02

AS-03-

14

The Design of Lexical Database for

Indonesian Language

D. Gunawan; A.

Amalia. 81


xix

No

Presen

tation

Code

Manus

cript

Code


14 A-03-

03

AS-03-

15

Implementation of Digital Signature

Using Aes and Rsa Algorithms as a

Security in Disposition System of

Letters

H. Siregar; E.

Junaeti; et. al. 82

15 A-03-

04

AS-03-

16

Multi-Pivot Quicksort: An

Experiment with Single, Dual, Triple,

Quad, and Penta-Pivot Quicksort

Algorithms in Python

M.A. Budiman;

E.M. Zamzami;

et. al.

83

16 A-03-

05

AS-03-

17

On Using Goldbach G0 Codes and

Even-Rodeh Codes for Text

Compression

M.A. Budiman;

D. Rachmawati. 84

Earth Science

No

Presen

tation

Code

Manus

cript

Code


1 A-05-

02

AS-06-

01

Analysis of Tourism Impact on Sand

Dune Landscape Structure and

Economic Aspect of the Surrounding

Community

I. Pujiastuti; A.

Sukmawijaya;

et. al.

85

2 A-05-

03

AS-06-

02

Groundwater Quality Assesment in

Jakarta Capital Region for the Safe

Drinking Water

M. Fadly; T.E.

Prayogi; et. al. 86

3 A-05-

04

AS-06-

03

Estimating of Gonystiluss Bancanus

Growing Stock in Indonesia (Case

study: Riau and Central Kalimantan

Province)

Samsuri; I.N.S.

Jaya; et. al. 87

4 A-05-

05

AS-06-

04

Pb Distribution in Groundwater and

Its Impact to the Health of Indonesias

Capital Citizen

D.Y. Zulfaris;

T.E Prayogi; et.

al.

88

5 A-05-

06

AS-06-

05

Characterization of Minerals Deposit

Patimpeng Bone Regency, South

Sulawesi Through Petrographic

Analysis

I.E. Putri; N.D.

Alwi; et. al. 89

xx


Electrical Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-04-

05

EN-04-

01

Contingency Analysis of Electric

Power Systems Sub-System 150 Kv

West Java Area Ii

T. Sucita, Y.

Mulyadi. 90

2 B-04-

06

EN-04-

03

Numerical Simulation Bidirectional

Chaotic Synchronization of Spiegel-

Moore Circuit and Its Application for

Secure Communication

M. Sanjaya; D.

Anggraeni, R.

Denya; et. al.

91

3 B-04-

07

EN-04-

04

Contingency Analysis of South

Bandung Electric Power System

D. Fauziah; Y.

Mulyadi. 92

4 B-04-

08

EN-04-

05

Scheduling Economical Thermal

Power Plant 500 kV Java-Bali

System Using Lagrange Multiplier

N. Sartika; A.G.

Abdullah; et. al. 93

5 B-04-

09

EN-04-

06

Optimize Short Term Load

Forecasting Anomalous Based Feed

Forward Backpropagation

Y. Mulyadi;

A.G. Abdullah;

et. al.

94

6 B-04-

10

EN-04-

07

Design and Experiment of

Electrooculogram (EOG) Systemand

Its Application to Control Mobile

Robot

M. Sanjaya; D.

Anggraeni; et.

al.

95

7 B-04-

11

EN-04-

08

Principal Component Analysis and

Cluster Analysis in Profile of

Electrical System

Iswan; I.

Garniwa M.K. 96

8 B-05-

01

EN-04-

09

Optimal Anomalous Short Term

Load Forecasting Based Feed

Forward Backpropagation Algorithm

K.A. Rohmah;

A.G. Abdullah;

et. al.

97

9 B-05-

02

EN-04-

10

Maximum Potential of the Car Cabin

Temperature in the Outdoor Parking

Conditions as a Source of Energy in

Thermoelectric Generator

A. Sunawar; I.

Garniwa. 98

10 B-05-

03

EN-04-

11

The Impact of Influence Range

Fuzzy Subtractive Clustering

Modification to Accuracy

Anomalous Load Forecasting

F. A. Respati;

A.G. Abdullah;

et. al.

99

11 B-05-

04

EN-04-

12

Voltage Generation of Three-Phase

Double Sided Internal Stator Axial

I. M. W.

Kastawan;

Rusmana; et. al.

100


xxi

No

Presen

tation

Code

Manus

cript

Code


Flux Permanent Magnet (AFPM)

Generator

12 B-05-

05

EN-04-

13

Alternative Improving the Quality of

Sub-Voltage Transmission System

Using Static Var Compensator

Hasbullah; Y.

Mulyadi. 101

13 B-02-

04

EN-04-

14

Accelerometer Sensor Application

Early Warning System train

Accidents Due to Landslide at

Laboratory Scale

Alimuddin; F.

Sulaiman; et. al. 102

Electronics Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-05-

06

EN-05-

01

Fire Extinguisher Robot Using

Ultrasonic Camera and Wifi Network

Controlled with Android

Smartphone

B. Siregar; H.A.

Purba; et. al. 103

2 B-05-

07

EN-05-

03

Low Cost Advance Integrated

Microcontroller Training Kit

Y. Somantri; I.

Fushilat. 104

Environmental Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-06-

04

EN-07-

02

Ecohealth System Dynamic Model as

a Planning Tool for the Reduction of

Breeding Sites

T. Respati; A.

Raksanagara; et.

al.

105

2 B-06-

05

EN-07-

04

Investigation of Indonesian

Traditional Houses Through CFD

Simulation

Suhendri; M.D.

Koerniawan. 106

3 B-06-

06

EN-07-

05

Industrial Energy Efficiency

Practices in Indonesia: Lesson

A.S. Telaga; I.D.

Hartanto. 107

xxii


No

Presen

tation

Code

Manus

cript

Code


Learned from Astra Green Energy

(AGen) Award

4 B-06-

07

EN-07-

06

Analysis of Architectural Building

Design Influences on Fire Spread in

Densely Urban Settlement Using

Cellular Automata

L. Tambunan; N.

Asriana; et. al. 108

5 B-06-

08

EN-07-

07

Biogas Technology on Supporting

“Sustainable” Coffee Farmers in

North Sumatera Province, Indonesia

N. Ginting; I.

Sembiring. 109

6 B-06-

09

EN-07-

08

Emission Factor from Small Scale

Tropical Peat Combustion

W. Setyawati; E.

Damanhuri; et.

al.

110

7 B-06-

10

EN-07-

09

Mapping Air Quality Index of

Carbon Monoxide (CO) in Medan

City

I. Suryati; H.

Khair. 111

Geomatics Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-09-

05

EN-18-

01

Mapping a Volcano Hazard Area of

Mount Sinabung Using Drone:

Preliminary Results

A.P.M. Tarigan;

F. Fahmi; et. al. 112

Industry Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-06-

11

EN-08-

01

Anthropometry of the Medan – North

Sumatera Populations

I. Siregar; R.M.

Sari; et. al. 113

2 B-07-

01

EN-08-

02

Effect of Total Quality Management

on the Quality and Productivity of

Human Resources

I. Siregar; A.A.

Nasution. 114


xxiii

No

Presen

tation

Code

Manus

cript

Code


3 B-07-

02

EN-08-

03

The Improvement of Supplier

Performance of Oil Palm Fresh Fruit

Bunches toward Higher

Competitiveness of CPO Processing

Plant

J. Hidayati. 115

4 B-07-

03

EN-08-

04

Analysis of Business Process in PT

XYZ Using SCOR Thread Diagram

M.T. Sembiring;

H.C. Rambe. 116

5 B-07-

04

EN-08-

05

Supplier Selections Based on the

Performance by Using Promethee

Method

T.S. Sinaga; K.

Siregar. 117

6 B-07-

05

EN-08-

06

Identification and Waste Reduction

on Rubber Industry

K. Syahputri;

R.M. Sari; et. al. 118

7 B-07-

06

EN-08-

07

Identification of Potential Hazard

Using Hazard Identification and Risk

Assessment

R.M. Sari; K.

Syahputri; et. al. 119

8 B-07-

07

EN-08-

08

Measurement of Noise Level in

Enumeration Station in Rubber

Industry

I. Rizkya; K.

Syahputri; et. al. 120

9 B-07-

08

EN-08-

09

Lightning Quality Affects Eyestrain

of Operators at Sorting Station in

Beverage Industry

Anizar; Erwin. 121

Information Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-08-

01

EN-16-

01

Development of Web-Based

Computer-Assisted Language

Learning in English Intensive

Course

M. Rohandi; N.

Husain; et. al. 122

2 B-08-

02

EN-16-

02

Implementation of ANP Method in

Determining Supplier to Improve

Service towards Supermarket

Consumers

A. Mulyanto; D.

Novian; et. al. 123

xxiv


No

Presen

tation

Code

Manus

cript

Code


3 B-08-

03

EN-16-

03

Model of the Material Inventory

Management Using Multimedia-

Based Information System

Sriadhi. 124

4 B-08-

04

EN-16-

04

Karawo Motifs Identification Based

on the Classification of User

Characters with Naïve Bayes Method

M.H. Koniyo; S.

Lamusu; et. al. 125

5 B-08-

05

EN-16-

05

A Method to Extract the Forensic

about Negative Issues from Web

M.K.M.

Nasution; R.

Sitepu; et. al.

126

6 B-08-

06

EN-16-

06 New Similarity

M.K.M.

Nasution; S.

Nasution; et. al.

127

7 B-08-

07

EN-16-

10

Decision Support Systems

Development for An Artificial

Insemination Project in Community

Based Precision Livestock Farming

C. Budiyanto. 128

Life Science

No

Presen

tation

Code

Manus

cript

Code


1 A-06-

02

AS-10-

01

Microsatellite Analysis of Genetic

Variation in Red Mangrove

Rhizophora Mangle L.

(Rhizophoraceae) and Its Implication

to Conservation

M. Basyuni; S.

Baba; et. al. 129

2 A-06-

03

AS-10-

02

Low 25(Oh)D Serum May Not

Reflect at Risk Skeletal Health but

Not with Body Mass Index in

Women

D.K. Sari; Z.Z.

Tala; et. al. 130

3 A-06-

04

AS-10-

03

Profile of Obesity and Diabetes

Mellitus in Adult Female Population

in North Sumatera, Indonesia

S. Lestari, Y.

Machrina. 131


xxv

No

Presen

tation

Code

Manus

cript

Code


4 A-06-

05

AS-10-

05

Improving Students’ Graphing Skill

Through Quantitative-Based Lab

Activities

N. Meisadewi;

S. Anggraeni; et.

al.

132

5 A-06-

06

AS-10-

06

Interpretation of Brown Planthoper

(Nilaparvata Lugens Stal.) Attacks

Using Exponential Smoothing and

Spatial Autocorelation

B.H.

Simanjuntak;

S.Y.J. Prasetyo;

et. al.

133

6 A-06-

07

AS-10-

07

Cloning and Phylogenetic Analysis

of Actin Genes From Mangrove

Family Rhizophoraceae

M. Basyuni; H.

Oku. 134

7 A-06-

08

AS-10-

09

Theta Brainwave Activity as the

Response to Lavender (Lavendula

Angustifolia) Aromatheraphy

Inhalation of Post Graduate Students

with Academic Stress Condition

S.R.

Kusumawardani;

L.L. Fitri; et. al.

135

8 A-07-

01

AS-10-

10

Induction of Toll-Like Receptor

(TLR)2 and MyD88-Dependent

TLR/ MyD88- Independent TLR -

Signaling in Response to Bacterial

Infections in the Gouramy Fish

(Osphronemus Gouramy)

D. Kusumawaty;

S. Suhandono;

et. al.

136

9 A-08-

09

AS-10-

13

The Prediction of Sensitivity towards

Uncanniness: An Applied

Psychological Study on Novel

Readers in the Light of

Anthropomorphism and Attitudes

towards Thrownness

C. G. E.

Meullemans;

J. Abraham

137

10 B-10-

11

AS-10-

14

Knowledge Worker Productivity

Indicators for Small Consultant

Businesses: A Thematic Analysis

M. C. Sondari;

E. Aprianti 138

xxvi


Management Science

No

Presen

tation

Code

Manus

cript

Code


1 A-09-

01

AS-17-

01

The Relation Leadership,

Organization Culture and Work

Motivation on Employees

Performance

Rino. 139

2 A-09-

02

AS-17-

02

Financial Performance Analysis

Using Economic Value Added

(EVA)

Ende. 140

3 A-09-

03

AS-17-

03

Development of Managerial

Competence Through Knowledge

Management in Small Industries in

West Java

Adman. 141

4 A-09-

04

AS-17-

05

Performance of EAM and MEAM

Potential for NiTi Alloys: A

Comparative Study

Munaji;

Sudarno; et. al. 142

5 A-09-

05

AS-17-

06

Entrepreneurial Interests of Posyandu

Cadres in Karang Berombak Village

West Medan Sub-District Medan

City

R.F.

Dalimunthe. 143

6 A-09-

06

AS-17-

07

Factors that Influence Financial

Literacy: A Conceptual Framework A. Firli. 144

7 A-09-

07

AS-17-

08

Financial Satisfaction on Small and

Medium Business in Brastagi City

B.K. Hasibuan;

Y.M. Lubis. 145

8 A-09-

08

AS-17-

09

Analysis of Effect of Physical

Evidence and Service Assurance on

Customer Satisfaction and Customer

Loyalty in Using Car Rental Service

(PT.Pusaka Prima Transport Cases)

A. Rachman. 146

9 A-10-

01

AS-17-

10

Financial Behavior and Performance

on Small and Medium Enterprises in

Coastal Area of Medan City

I. sadalia;

Syahyunan. 147


xxvii

No

Presen

tation

Code

Manus

cript

Code


10 A-10-

02

AS-17-

11

Influence of Public Relation on

University Image

A. Damayanti;

S. Sulastri. 148

11 A-10-

03

AS-17-

12

Merit System in the Placement of

Civil Servants and Its Effect toward

Performance of Sub-District Office

in Labuhanbatu Region North

Sumatera

Z.M.E. Siregar;

J. Lubis. 149

12 A-10-

04

AS-17-

13

The Profitability Analisys of PT.

Garuda Indonesia (Persero) Tbk.

Before and After Privatization

I. Nurasiah. 150

13 A-10-

05

AS-17-

14

Social Security Contribution to

Productivity and Wages in Labour

Organization Perspective

Y.N. Supriadi. 151

14 A-10-

06

AS-17-

16

The Effect of Green Home, Green

Behavior, and Livability on The

Financial Incentive in Medan City,

Indonesia

K.A. Fachrudin;

H.T. Fachrudin. 152

15 A-10-

07

AS-17-

19

Assessing the Effects of Service

Quality of Government and Student

Satisfaction in Education’s Field

D.

Purwaningsih. 153

16 A-10-

02

AS-17-

23

Impact of the Economic Growth and

Acquisition of Land to the

Construction Cost Index in North

Sumatera

H. B. Tarmizi;

M. Daulay;

et. al.

154

17 B-09-

11

AS-17-

24

The Impact of Modern Retail

Minimarket Towards the Continuity

of Traditional Retail Businesses

R. Masruroh 155

18 A-10-

08

AS-17-

25

Combined Loadings and Cross-

Dimensional Loadings Timeliness of

Presentation of Financial Statements

of Local Government

I. Muda; A.

Dharsuky; et. al. 156

19 A-08-

03

AS-17-

26

Self-Giving as Spiritual Dimension in

Leadership

A. Benawa;

N. Tarigan;

at. al.

157

xxviii


Material Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-05-

08

EN-06-

01

A Numerical Model of Seawater

Volume and Velocity Dynamic for

Marine Currents Power Plant in the

Bangka Strait, North Sulawesi,

Indonesia

P.T.D. Rompas;

H. Taunaumang;

et. al.

158

2 B-05-

09

EN-06-

02

Identification of the Quality Spot

Welding Used Non Destructive Test-

Ultrasonic Testing :( Effect of

Welding Time)

A. Sifa; T.

Endramawan; et.

al.

159

3 B-05-

10

EN-06-

03

Mechanical Properties Studies of

Components Formulation for Mixing

Process Contain of Polypropylene,

Polyethylene, and Aluminium

Powder

A. Hamsi; R.

Dinzi. 160

4 B-05-

11

EN-06-

04

Preparation and Characterization of

Cellulose Microcrystalline (Mcc)

from Fiber of Empty Fruit Bunch

Palm Oil

H. Nasution;

Yurnaliza; et. al. 161

5 B-06-

01

EN-06-

05

The Influence of Chicken Egg Shell

as Fillers on Biocomposite Acrylic

Resin for Denture Based

M. Lubis;

M.H.S. Ginting;

et. al.

162

6 B-06-

02

EN-06-

07

Simulation of Mechanical Stress on

Stainless Steel for Pb-Bi Corrosion

Test by Using ABAQUS

D. Irwanto;

A.P.A. Mustari;

et. al.

163

7 B-06-

03

EN-06-

08

A Model of Small Capacity Power

Plant in Tateli Village, North

Sulawesi

F.J. Sangari; P T

D Rompas. 164


xxix

Material Science

No

Presen

tation

Code

Manus

cript

Code


1 A-03-

06

AS-04-

02

Tunneling Current of Electron in

Armchair Graphene Nanoribbon

Bipolar Transistor Model Using

Transfer Matrix Method

A.K. Fahmi; E.

Suhendi; et. al. 165

2 A-03-

07

AS-04-

03

The Mechanical Properties and

Microstructure Characters of Hybrid

Composite Geopolymers-Pineapple

Fiber Leaves (PFL)

N. Amalia; S.

Hidayatullah; et.

al.

166

3 A-03-

08

AS-04-

04

Development of Geopolymers

Composite Based on Metakaolin-

Nano ZnO For Antibacterial

Application

Q.A. Nur; N.U.

Sari; et. al. 167

4 A-03-

09

AS-04-

05

Characteristic of commercial SiC and

synthetic SiC as an aggregate in

Geopolymer Composites

R. Irfanita; K.N.

Afifah; et. al. 168

5 A-04-

01

AS-04-

06

Development of Coconut Trunk

Fiber Geopolymer Hybrid Composite

For Structural Engineering Materials

F. Amalia;

Nurakifah; et. al. 169

6 A-04-

02

AS-04-

07

Post-Treatment Effect of

Particleboard on Dimensional

Stability and Durability Properties of

Particleboard Made from Sorghum

Bagasse

A.H. Iswanto; T.

Sucipto; et. al. 170

7 A-04-

03

AS-04-

08

Fixation of Soft-Inner Part of Oil

Palm Trunk by Close System

Compression Method

R. Hartono; W.

Dwianto; et. al. 171

8 A-04-

04

AS-04-

09

The Feasibility of Sugar Palm

(Arenga pinnata) Trunk for Raw

Material of Parquet (Wood Flooring)

A. Nuryawan; A.

Tarigan; et. al. 172

9 A-04-

05

AS-04-

11

Improved Electrical Properties of

Chitosan Based Acetone Sensor by

Adding Carboxymethylcellulose

(CMC)

T.I Nasution; R.

Asrosa; et. al. 173

xxx


Mathematics

No

Presen

tation

Code

Manus

cript

Code


1 A-01-

01

AS-01-

01

Optimization on Paddy Crops in

Central Java (with Solver, SVD on

Least Square and ACO (Ant Colony

Algorithm))

H.A. Parhusip;

S. Trihandaru, B.

Susanto; et. al.

174

2 B-08-

11

AS-01-

02

Modeling of Sedimentation Process

in the Irrigation Channel

Tulus; M.

Situmorang. 175

3 A-01-

03

AS-01-

03

Didactical Design Material Units of

Distance and Speed to Developed

Mathematical Connection in

Elemntory School

R.R. Jannah;

Karlimah; et. al. 176

Mechanical Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-01-

01

EN-01-

01

Displacement of a Free Tyre in

Natural Frequencies to Determine

Noise Structure

M. Sabri. 177

2 B-01-

02

EN-01-

02

Numerical Study of Natural Vacuum

Solar Desalination System with

Varying Temperature of Low Grade

Heat Source

H. Ambarita. 178

3 B-01-

03

EN-01-

03

Performance and Emissions of a

Small Compression Ignition Engine

Run on Dual-Fuel Mode (Diesel-Raw

Biogas)

H. Ambarita. 179

4 B-01-

04

EN-01-

04

The Influence of Mixed Composition

and Hole Mould on the Quality of

Chicken Feed

Syaharuddin R.;

T. Agus S; et. al. 180

5 B-01-

05

EN-01-

05

Performance and Characteristics of

Heat Pump Clothes Drier

H. Ambarita;

D.M. Nasution;

et. al.

181


xxxi

No

Presen

tation

Code

Manus

cript

Code


6 B-01-

06

EN-01-

06

Design and Construction Multi

Output Power Transmition with

Single Prime Mover on Agricultural

Products Machine

V. Koten. 182

7 B-01-

07

EN-01-

07

Numerical Approach to Wood

Pyrolysis in Consideration Heat

Transfer inside Reactor Chamber

M. Idris; U.

Novalia. 183

8 B-01-

08

EN-01-

08

Experimental Study on Melting and

Solidification of Phase Change

Material Thermal Storage

H. Ambarita; I.

Abdullah; et. al. 184

9 B-01-

09

EN-01-

09

A Preliminary Study on Designing

and Testing of an Absorption

Refrigeration Cycle Powered by

Exhaust Gas of Combustion Engine

F.H. Napitupulu. 185

10 B-01-

10

EN-01-

10

Experimental Study of Performance

of a Box Solar Cooker with Flat Plate

Collector to Boil Water

H. Ambarita; S.

Gunawan; et. al. 186

11 B-01-

11

EN-01-

11

Analysis of Power Generating Speed

Bumps Made of Concrete Foam

Composite

B. Syam; M.

Muttaqin; et. al. 187

12 B-02-

01

EN-01-

12

Developing a Hybrid Solar/Wind

Powered Drip Irrigation System for

Dragon Fruit Yield

I. Widiastuti;

D.S Wijayanto. 188

13 B-02-

02

EN-01-

13

Design and Velocity Distribution of

Runner Blade Kaplan Turbine Using

CFD (Computer Fluid Dynamic) for

Small Hydroelectric Power Plant

Y. Rudianto;

Y.T.A. Sutrisno;

et. al.

189

14 B-02-

03

EN-01-

14

Application of Biomass from Palm

Oil Mill for Organic Rankine Cycle

to Generate Power In North Sumatera

Indonesia

T.B. Nur; Z.

Pane; et. al. 190

xxxii


Molecular Science

No

Presen

tation

Code

Manus

cript

Code


1 A-08-

08

AS-15-

01

Relevance of Human Chromosome

Analysis Activities Against Mutation

Concept in Genetics Course

R. Erwinsyah;

Riandi; et. al. 191

Ocean Engineering

No

Presen

tation

Code

Manus

cript

Code


1 B-07-

09

EN-13-

01

Modelling the Physical System of

Belawan Estuary

A.P.M. Tarigan;

D. Swandhana;

et. al.

192

Pharmacology

No

Presen

tation

Code

Manus

cript

Code


1 A-07-

07

AS-12-

01

Top 200 Prescribed Drugs Mostly

Prescribed by the Physician in

Pharmacies at Medan City

H.R. Tanjung;

E.S. Nasution. 193

Physics

No

Presen

tation

Code

Manus

cript

Code


1 A-01-

04

AS-02-

01

Modeling of Drain Current in

Tunneling Field-Effect Transistor

Based on Strained Armchair

Graphene Nanoribbons

E. Suhendi; R.

Syariati; et. al. 194


xxxiii

No

Presen

tation

Code

Manus

cript

Code


2 A-01-

05

AS-02-

02

The Concept Mastery in the

Perspective of Gender of Junior High

School Students on Eclipse Theme in

Multiple Intelligences-based of

Integrated Earth and Space Science

Learning

W. Liliawati;

J.A. Utama; et.

al.

195

3 A-01-

06

AS-02-

03

Neutron Distributon in the Nuclear

Fuel Cell Using Collision Probability

Method with Quadratic Flux

Approach

M.A. Shafii;

S.H.J.

Tongkukut; et.

al.

196

4 A-01-

07

AS-02-

04

Description of Self-Efficacy and

Initial Cognitive Abilities on the

Students’ Physics Learning of the

Direct Current Electrical Circuits

Zaenudin; J.

Maknun; et. al. 197

Physiology

No

Presen

tation

Code

Manus

cript

Code


1 A-07-

08

AS-13-

01

Correlation Anemia with TIBC

among Schoolchildren at Primary

School in Medan

D.M. Darlan;

N.K. Arrasyid;

et. al.

198

2 A-08-

01

AS-13-

02

The Cardiovascular Function Profile

and Physical Fitness in Overweight

Subjects

E.R. Megawati;

L.D. Lubis; et.

al.

199

Plant Science

No

Presen

tation

Code

Manus

cript

Code


1 A-07-

02

AS-11-

01

The Effect of Sunlight in

Parenchyma Pith Cells Diameter of

Manihot esculenta

D. Susanti; D.N.

Aziz; et. al. 200

xxxiv


No

Presen

tation

Code

Manus

cript

Code


2 A-07-

03

AS-11-

02

DNA Profile of Mtg (Moderat Tahan

Gano) Oil Palm Variety Based on Ssr

Marker

L.A.P. Putri; H.

Setiado; et. al. 201

3 A-07-

04

AS-11-

03

Assessment of Natural Regeneration

of Mangrove Species at Tsunami

Affected Areas in Indonesia and

Malaysia

Onrizal; A.G.

Ahmad; et. al. 202

4 A-07-

05

AS-11-

04

Propagation of Valuable North

Sumatera Benzoin Trees (Styrax Sp)

Using Macrocutting Technique

A. Susilowati;

K.S. Hartini; et.

al.

203

5 A-07-

06

AS-11-

05

The Correlation of Tree Phenology

with Nest Number of Orang Utan

Sumatera (Pongo abelii) on Primary

Forest, Resort Sei Betung, Gunung

Leuser National Park

K.S. Hartini; P.

Patana; et. al. 204

Space Science

No

Presen

tation

Code

Manus

cript

Code


1 A-05-

07

AS-08-

01

Frequency Drift Rate Investigation of

Solar Radio Burst Type II Due to

Coronal Mass Ejections Occurrence

on 4th November 2014 Captured by

CALLISTO at Sumedang -

Indonesia

M. Batubara; T.

Manik; et. al. 205

2 A-05-

08

AS-08-

02

Solar Radio Burst Data Processing of

Callisto and Frequency Drift Rate

Determination of Solar Radio Burst

Detected by Callisto Network in

Indonesia

M. Batubara; T.

Manik; et. al. 206

3 A-06-

01

AS-08-

03

Muscle Strength Endurance Testing

Development Based Photo Transistor

with Motion Sensor Ultrasonic

A. Rusdiana 207


xxxv


1

2


Architecture Presentation Code: B-09-06

Manuscript Code: EN-19-01

Can Architecture Design Solve Social Problem?

Salmina W Ginting1*, Endang TSB Darjosanjoto2, Haryo Sulistyarso3

1Department of Architecture, Universitas Sumatera Utara (USU), Indonesia

2Professor of Urban Morphology, InstitutTeknologiSepuluhNopember (ITS), Indonesia

3Senior Lecturer, Department of Urban and Regional Planning, Institut Teknologi Sepuluh Nopember (ITS), Indonesia

E-mail: [email protected]; [email protected]

Abstract. Most of architects and urban designers believe physical design gives

impact on our social life. For example, a sign or landmark in the middle of a city

makes people find orientation easier. In vice verse, most of social scientists believe

it is social dynamic that plays role in shaping our space. How people spend their

time moving from real space into cyber space is a proof that life style and IT give

impact to space usage. This paper argues that interaction between physical design

and social change is a two ways process. Both design aspect and social dynamic

influence each other. This paper aims to examine how designing of gated

community plays important role in increasing or decreasing segregation, both

spatially and socially. The paper explores some architectural design principles

applied in a gated community called Citra Land in west Surabaya, Indonesia, and

addresses segregation between Citra Landers and outside kampung. We find Citra

Land is designed openly and fully accessible for outsiders. It provides public spaces

and several accessible gates and streets without walls and fences making all places

inside and outside Citra Land spatially integrated. What’s interesting is it still

reinforces social segregation due to its policy on prohibiting using the public park.

We believe Citra Land’s planning and designing has successfully solved segregation

problem spatially not socially.


3



Socio-Cultural Impacts in the Formation of Urban

Village

Beny O.Y. Marpaung

Architecture Department, Faculty of Engineering. University of Sumatera

Utara, Medan, Indonesia

E-mail: [email protected]

Abstract. In Indonesia, a group of village people tends to move from one place to

another and develops a living space to create a settlement. This research is conducted

by taking an example of a particular ethnic group that leaves the forestry area to a

new place in the city. After some time, this group of people creates a similar or

adapted socio-cultural system adapted from their origin place. The purpose of this

research is to examine the socio-cultural aspects that significantly influence the

emergence of urban village. This influence is interpreted as a social and cultural

relations with the establishment of space and significance of urban village. By

focusing on this issue, this research will trace the process of how a new and

unplanned settlement could emerge. The process and elements are indispensable

from social and cultural factors. Essentially, the shape of bulit space is a non

physical manifestation of local people which is established from time to time. In this

case, the research’s challenge lies on the circumstance in Indonesia where society

and culture influence the emergence of urban village. Physical apperance can be identified as a tipology of settlement and morphology of urban village.

4




Architecture and Monumental (Study about form in

Architecture)

I F Pane1,2 *, H Suwantoro1, W Zahrah1, and R A Sianipar1

1Department of Architecture, Faculty of Engineering, University of

Sumatera Utara, Kampus USU, Medan 20155 Indonesia 2Laboratory History,Theory and Criticsm of Architecture, Department of

Architecture, University of Sumatera Utara, Kampus USU, Medan 20155

Indonesia


Abstract. The architecture develops along with the development of human history.

So architecture is the field of study related to human physically and non-physically.

The development of architecture is a long process within the culture the architecture

develops. Physically, architecture has different shape from every historical phase.

The different shape has different historical background. The important building on

one period is always impressed.This impression still remains until now, in this

postmodern era. From the phenomena appear in architecture so this study focused

on the monumental buildings by analyzing the form of the building in this era. The

objects of the study are the buildings in Medan which represent the monumental

impression (Maimun Palace). The qualitative approach is applied to give more

knowledge in history, theory, and criticsm of architecture.The results of this study

described that the monumental impression of the object of study and forms of

building support that impression.


5



Improving Urban Corridor that Respect to Public Space

Wahyuni Zahrah1 *, Novi Rahmadhani1, Achmad Delianur Nasution1,

Imam Faisal Pane1

1Department of Architecture, Universitas Sumatera Utara, Jl. Perpustakaan

Ged. J.07, Kampus USU Medan 20155


Abstract. The urban corridor is more than just a linear space to circulation. It is a

place for community activities. Since the urban area in Indonesia functionates

without guidelines, it is necessary to analyze how this space being used by the

community. The objective of the research is to explore the problems in utilization

of public space in Dr. Mansur corridor in Medan and to propose some

recommendation to improve it. The survey was started by mapping the physical

situation that based on urban design aspects and the activities occur. Based on the

data, the study identified the problems of the public space utilization. Next, study

selected several buildings that significant in generating public life. The study

interviewed the building's owners and users/customers to get their opinion and

perception about the using of urban public space utilization in the corridor in relation

to their private function. The study analyzed the problems and opportunity to

redesign the buildings that respect to public space. Then, the design ideas were

presented to the buildings owners to get their response. The result of the observation

shows that the fundamental problem in the corridor is the intervention of the private

interest to the street as public space. The study indicates that the majority of the

buildings owner was not aware that their buildings had distracted the urban public

space. However, they gave a positive respond to the design recommendation. The

design offered the solution that provided individual needs without intervention to

the public realm. The study can contribute to improving urban corridor by educating

the community with architecture and urban design.

6




The Determinant Factors of Regional Development

toward Land Use Change in Deli Serdang

Dwi Lindarto H1*, Sirojuzilam2, Badaruddin3 and Dwira N A4 1 Department of Regional Planning , University of Sumatera Utara Jl, dr. Mansur

USU Campus, Medan 20155 2 Department of Regional Planning, University of Sumatera Utara Jl, dr. Mansur

USU Campus, Medan 20155 3 Department of Regional Planning, University of Sumatera Utara Jl, dr. Mansur

USU Campus, Medan 20155 4 Department of Architecture, Engineering Faculty, University of Sumatera Utara Jl, Perpustakaan 1 USU Campus, Medan 20155


Abstract. The concept of regional development Mebidangro (Medan, Binjai, Deli

Serdang, Karo) creating neighboring region hinterland Medan city with Deli

Serdang Regency especially in Tembung village, PercutSei Tuan District.

Population structure in Tembung shows occurrence condition of rural-urban change

which seen from the sprawl land use change. The aim of the study is to reveal the

genius locus as one of land use change factors. The study conducted with

quantitative approach intended at obtaining variables which describing several

factors forming land use change. Descriptive approach intended to give an idea,

justification, and fact-finding with correct interpretation. Data collected through a

purposive sampling of 300 respondents who have built the house between 2010 till

2014. With overlay figure/ground technique, scoring analysis, descriptive

quantitative and SEM (Structural Equational Models) gained a result that place

character/genius locus (p=0,007) potentially as one of the main land use change

driving factors besides accessibility (p=0,039), infrastructure (p=0,005), social-

economic p=0,038). Topographic (p=0,663) was inversely potentially. The

implication of the findings is required intensive control in space utilization

considering the rapid change in land use transformation that tend to have the

negative impact of urban sprawl.


7



Tourism Development Based on Geopark in Bakkara

Caldera Toba, Indonesia

Nurlisa Ginting1*, N. Vinky Rahman1, and Gagarin Sembiring2

1Departemen Arsitektur, FakultasTeknik, Universitas Sumatera Utara, Jl. dr.

Mansur Kampus USU Medan, 20155 2Ikatan Ahli Geologi Indonesia Provinsi Sumatera Utara, Jl. 1Jamin

Ginting118, 11,1 km Medan, 20135


Abstract. Bakkara Caldera Toba is an outstanding product of naturalphenomena of

Toba Supervolcano which has fascinating nature andculture. Bakkara has a great

potential to develop world tourism further.It requires a model of sustainable

planning Geopark to developBakkara. This sustainable concept helps to improve the

localcommunity and tourist's quality of life and also still maintain the qualityof the

environment.through field observation and depthinterview. The Collected data with

a triangulation method.Development tourism destination such as attractions

andenvironment; facilities and services; accessibility; image; and price toconsume.

It associated based on Geopark aspects there are;geological heritage; geo-

conservation activities; sustainable tourismactivities; educational; activities;

community involvement products;strong management structure; and secure basis,

infrastructure, andactivities. The results of this study indicate that the Bakkara has

thepotential to become a tourist destination by applying the concept ofGeotourism

which accentuate its natural side, by optimizing themanagement of its destination

attractions, its facilities and services, and its accessibilities.

8




Identification of Increasing Green Behaviour in

Citraland Bagya City, Medan

Dwira Nirfalini Aulia1*, Beny OY Marpaung1, Lisa Suryani1

1 Department of Architecture, University of Sumatera Utara, Jl. dr.

MansyurKampus USU Medan 20155


Abstract. This present time, Indonesia just began applying the concept of Green

Architecture. The actions require community participation as residents and the users

of the building. The built environment is designed around the idea of Green

Architecture but inhabited and managed improperly; the goal of sustainable built

environment is not achieved. The aspect of behaviour is the key factor in the

implementation of Green Architecture’s concept. This research is a descriptive

exploratory which is to identify the problems to the implementation of Green

Architecture’s concept in planned housing. Then the study will explore the

components causes of the problems used as a problem solver. The study conducted

on the living behaviour in CitralandBagya City’s resident. The estate is designed

and built with the concept of Green Architecture in Medan city. The research was

carried out by the four aspects of housing are the physical, social and cultural,

policy, and management issue. These three components will indirectly relate to the

economic issues that are the efficiency and effectiveness of living behaviour. The

results showed that the increasing of green behavior is still small and the occupant

requires motivation and socialization of living green.

Keywords: green architecture, living behaviour, planned settlement.

mailto:[email protected]



9



The Implementation of Aerotropolis Concept on New

Town Planning and Design in Mebidangro, Sumatera

Utara

AD Nasution, DD Harisdani, PP Napitupulu

Department of Architecture, Faculty of Engineering, Universitas Sumatera

Utara


Abstract. Mebidangro is a metropolitan area in Sumatera Utara Province that

consists of some regencies and cities of Medan, Binjai, Deli Serdang, and Karo. The

region becomes one of the national strategic developments that have been assigned

by The President. In the planning, a part of the spatial arrangement refers to the role

of Kualanamu International airport as the international transportation hub.

Meanwhile, PT Angkasapura proposes the aerotropolis, a new town concept that

based on the strategic function of the airport. The model is derived from John

Kasada’s idea about the airport influence in generating and accelerating economic

activity in a “city airport.” The study aims to explore ideas on planning and design

a new town in Mebidangro that applies some aerotropolis theories, including spatial

structure, land use and urban design guidelines. The result of the study indicates that

aerotropolis can fit the vision of Mebidangro development in improving economic

activity as well as community quality of life. However, the implementation should

deal with some problems of land ownership and the community readiness. The

research can contribute to enrich the way to implement any “import” town planning and design theory that corresponds to local environment condition.

10


Architecture Presentation Code: A-01-01


Cultural Mapping of the heritage districts in Medan,

North Sumatra

Isnen Fitri1,2 *, Ratna3, Rudolf Sitorus1, and Muhammad Affan4

1Department of Architecture, Faculty of Engineering, University of

Sumatera Utara, Jl. dr. Mansur Kampus USU Medan 20155 2PhD Candidate, Faculty of Built Environment, University of Malaya, 50603

Kuala Lumpur, Malaysia 3Department of History, Faculty of Cultural Science, University of Sumatera

Utara, Jl. dr. Mansur Kampus USU Medan 20155 4 Masyarakat Sejarahwan Indonesia (MSI), Faculty of Cultural Science,

University of Sumatera Utara, Jl. dr. Mansur Kampus USU Medan 20155


Abstract. Medan as one of the historical towns in Indonesia is rich with architectural

and urban heritages; however, there still has no integrated plan to safeguard them.

This paper discusses the cultural mapping of the seven heritage conservation

districts in the city of Medan. It focuses onexploring the process and challenges of

the study from the initial step of data collections to the building of the cultural maps

with web based GIS.Multi-method of data collection tactics or triangulation such as

field survey, interviews was done to cover the cultural data resources including both

tangible (or quantitative) and intangible (or qualitative). Participation of the local

community is essential to identify mainly the intangibles one. Based on the

preliminary analysis of the seven heritage districts in Medan city, Merdeka-

Kesawan area had whole categories of the cultural assets and resources compared to

other six heritage areas. Consequently, it influences the enhancement its cultural

heritage significance. By using our methods,we emphasized the importance of the

cultural mapping in preparing the conservation policies and strategies of the seven heritage districts in Medan.


11



Urban Farming Community Space: an Idea to

Overcome the Decreasing of Agricultural Land in

Kitakyushu, Japan

Treza Chandra julian1, Beta Paramita2

1Undergraduate student, Department of Architectural Engineering of

Education, Universitas Pendidikan Indonesia 2Lecturer, Department of Architectural Engineering of Education,

Universitas Pendidikan Indonesia


Abstract. Japan face with many social and environmental problems especially

populationaging, social communication degradation and decreasing of agricultural

land. Kitakyushu city is one big city in Jpana, which the old people take 30% in

population, while younger people are moving to the big cities for working and other

desires. it is common that Japanese people is less and less communicate with other

people and tend to curl up in their personal space due to the modern stressful life.

Besides, a big ratio of Japanese farmers recently did not do the farm work anymore,

leading to a considerable abandoned agricultural land. So, there should be done to

improve the lives of older people, heal social communication, or revive the barren

land. The designing site is placed in Hibikino area, Kitakyushu city, Japan, a

farmland area operated by Japan Agriculture Association where citizens can hire

some slots to plant vegetables themselves. However, this placed does work

effectively when only a few people come to hire the land. This research method is

a descriptive study aimed to obtain qualitative data. The purpose of this study was

to create a design idea the agricultural community space where parents can work

and communicate with children, customers, and strangers with three targets of

sustainable environmental, social, and economic. And then, this system not only

helps to create the green lifestyle for inhabitant but also improves social

communication, reducing CO2emission with it sustainable working process.


12




The Implementation of Floor-Area Ratio in the Eastern

Corridor of Jalan Ir. H. Djuanda Bandung

L Widaningsih1, T Megayanti1, R Minggra1

1The Department of Architecture Engineering Education, The Faculty of

Technical and Vocational Education, Universitas Pendidikan Indonesia,

Bandung, Indonesia


Abstract. This paper investigates the changes of buildings and the patterns of spatial

use in the eastern corridor of Jl. Ir. H. Juanda Bandung. The aim is to what extent

the regulations related to floor-area ratio are implemented and how the space and

building looks are designed. Historically, the corridor of Jl. Ir. H. Juanda as part of

Dago area is designed for colonial residences, but the development of commercial

activities in the city of Bandung has resulted in many changes to the area, making it

a commercial area. This study used a descriptive qualitative method by conducting

field observations to identify buildings located on the eastern corridor which was

divided into three segments of the road. The results show that quantitatively the

buildings along the eastern corridor are still in compliance with the floor-area ratio.

There is only a small portion in the segment of between Jl. Cikapayang and Jl. RE

Martadinata that exceeds the ratio limit. However, the ration is not the only reference

to achieve the harmony in visual and the characters of the city. The characters of the

corridor are determined by several parameters, such as building height, building

scale and comparison visibility. These parameters should be put into consideration.

Thus, more detailed regulations regarding the changes in the shape, the pattern of use of space, and the concept of contextual design are highly required.



13



Islamic Modernism and Architectural Modernism of

Muhammadiyah’s Lio Mosque

Alfansyah Fauzy Prajawisastra, Tutin Aryanti

UniversitasPendidikan Indonesia, Bandung, Indonesia


Abstract. The Muhammadiyah’sLio Mosque is one of the masterpieces of

AchmadNoe’man, the great Indonesian mosque architect. The mosque was built as

a community mosque at the center of Muhammadiyah’s quarter in Garut, West Java,

in conjuction with the construction of the district’s Muhammadiyah branch. Having

a shape out of the existing grip, the mosque has neither a dome nor a

tajugtumpangtiga (three-tiered pyramidal roof) like other mosques nearby, but

instead uses a gable roof and minarets towering. This article aims to analyze the

architecture of the Lio Mosque and to learn AchmadNoe’man’s interpretation of

modernism, both Islamic modernism and architectural modernism, reflected in the

mosque design. Employing a qualitative approach, this study used observation and

interviews with the mosque’s stakeholders. This article argues that the ideology of

modernism, believed by AchmadNoe’man and the Muhammadiyah organization,

was embodied in the Lio Mosque architecture.

14




The Salman Mosque: Achmad Noe’man’s Critique of

Indonesian Conventional Mosque Architecture

Asep Abdul Rahman Holik, TutinAryanti

Universitas Pendidikan Indonesia, Bandung, Indonesia


Abstract. The Salman Mosque, designed by AchmadNoe’man, was a striking

Islamic architectural design in the 1960s when it was built. Unlike the conventional

mosques, particularly in Indonesia, it has no dome. Instead, the roof was made of

prestressed concrete and resembles a canoe. Using data drawn from field

observations, this paper explores the architectural characteristics of the Salman

Mosque as a product of Modern architecture. It argues that the domeless mosque,

the simple minaret, the wooden wall panels and floor, the women’s balcony, and the

roof demonstrate architectural modernism, as opposed to the conventional mosque

typology that flourished in Indonesia at the time. This paper further argues that the

Salman Mosque is Noe’man’s critique of the Indonesian conventional mosque

architecture. It concludes that the architectural features of the Salman Mosque reflects Noe’man’s modern vision of Islam and Islamic architecture.


15



Designing Using LEGO and UNO-STACKO: a Playful

Architecture for an Integrated Kindergarten and

Elementary School

KaniMuthmainnah*, TutinAryanti, AdiArdiansyah



Abstract. The integrated kindergarten and elementary school is a public educational

facility used for early age and elementary education. Designated for children at 4-

12 years of age, the design should meet the standards and requirements, while

considering children’s needs in their development phase. This paper discusses the

design of an integrated kindergarten and elementary school using the playful theme.

Design was explored using LEGO and UNO-STACKO to create spaces that

accommodate material exploration for children. The design takes the play concept

as a medium of child’s learning in order to improve their ability and awareness of

the surrounding environment. The design translates the playful theme into imaginary

dimension, constructive-deconstructive shapes, and glide circulations concept. The

spatial pattern is applied by considering children’s behavior in the designated ages

to trigger their creativity improvement. The design is expected to serve as a model

of an integrated kindergarten and elementary school architecture.

16




The Domes: El Wakil’s Traditionalist Architecture of

Quba Mosque

Ahmad AfifMacca, TutinAryanti



Abstract. Quba Mosque stands as it is today after being rebuilt and renovated

several times, as the sacred and historical place built by Prophet Muhammad PBUH

in the first day of his emmigration to Medina. Being the first architecture following

his hijra, it reflects the will of the people in their endowment to the mosque. This

paper aims at studying the changes throughout the development of the mosque,

focusing mainly on the last development designed by the architect El-Wakil, his will

to reforge the link between the past and the present and the significance of

understanding the Islamic culture, philosophy, and architecture. This study

employed a literature review to capture the mosque’s architectural features

developed by El-Wakil. It argues that the elements of the mosque, particularly the

domes, are products of El- Wakil’s vision and defence for traditionalism. His use of traditionalist approach shows his notion of what Islamic architecture is.


17

Biochemistry Presentation Code: A-08-02

Manuscript Code: AS-14-01

Decreasing Free Radicals Level on High Risk Person

after Vitamin C and E Supplement Treatment

Mega Sari Sitorus1, Dwi Rita Anggraini2, Hidayat3

1-2Anatomy departement, Medical Faculty, University of Sumatera Utara 3Biochemistry departement, Medical Faculty, University of Sumatera Utar

Abstract. Has become a global issue that the increase in global warming mainly

caused by high air pollution levels which are donated by motor vehicle emissions.

As a rapidly developing country, Indonesia becomes vulnerable to health problems

related to air pollution. Excessive free radicals that is produced by air pollution can

initiate stress oxidative. Already known that, stress oxidative trigger many health

problems. Vitamin C and E is a non enzymatic antioxidant that can neutralize free

radicals. This study aims to investigate the decreasing free radicals level by

administering vitamin C and E. This research using pre and post experimental design

study. There are 24 operators gasoline station Pertamina as samples, with an average

age of 26 years. The samples were divided into 4 groups. Group 1 (control), group

2, were given vitamin C doses of 500mg / day, group 3 was given vitamin E doses

of 250 IU / day and the group 4 was given a combination of vitamins C and E. The

treatment was given for 30 days. Free radicals level is obtained from malonaldehyde

(MDA) level by spectrophotometer. Before treatment the average of MDA level is

5.540 µm. After the treatment, MDA is significantly decreased become 3.992 µm

(T-test, sig<0.05). This result can be used as a sign of side affect of air pollutant in

the operator SPBU. As reminding to protect the employee with safety aid and supplement.

Keywords : free radicals, malonaldehyde (MDA), antioxidant, vitamin C, vitamin

E

18


Biochemistry Presentation Code: -


Effect of Oral Administration of Tungsten Trioxide

(WO3) Particles on Hispathological Feature of liver and

kidney in Rat

Heli Siti Halimatul Munawaroh*1, Asep Bayu Dani Nandiyanto2,Gun

Gun Gumilar3, Ajeng Widi4, Mawar Subangkit5

1-4 Departemen Kimia, FPMIPA Universitas Pendidikan Indonesia

Jl. Dr. Setiabudhi No. 229 Bandung 40154, Jawa Barat-Indonesia

5Fakultas Kedokteran Hewan, Institut Pertanian Bogor

Jl. Agatis, Kampus IPB Darmaga, Bogor, Jawa Barat-Indonesia


Abstract. This study aims to investigate the toxicity and histopathology of tungsten

trioxide (WO3) administration on rat’s liver and kidney. The LD50 of WO3 was

determined and the subacute toxicity was evaluated by orally administration of 5000

mg kg-1 of WO3 to rat for 14 consecutive days.Parameter of blood cells, ALT,

creatinine, and BUN were experimentally measured. The toxicological evaluation

showed that WO3 is a non toxic compound with the LD50 higher that 5000 mg kg-

1.No biochemical change was observed for creatinine and Blood Urea Nitrogen

parameter. In contrast, ALT parameter shows higher value in the experiment than

that in the control group. Histopathological changes on rat’s liver and kidney were

also studied. Small defects in rat’s liver and kidney were found, which may interfere the functional of related enzymes.


19



Nutrient Intake, Apolipoprotein A5 -1131T>C

polymorphism and Its Relationship with Obesity

Mutiara Indah Sari 1* Dewi Indah Sari 2 1Departement of Biochemistry, Faculty of Medicine, Sumatera Utara

University, Medan, Indonesia, Jl. Dr. Mansur Kampus USU Medan 20155 2 Departemen of Clinical Pathology, Faculty of Medicine, Sumatera Utara

University , Medan, Indonesia, Jl. Dr. Mansur Kampus USU Medan 20155


Abstract. Obesity is associated with the development of some of the most

prevalent diseases of modern society. The World Health Organization estimates

that at least 2.8 million adult die each year as result of being obesity. Nutrient

intake is a key environmental factor that may interact with genotype to affect

risk of obesity. The aim of study was assess the relation between nutrient intake

and apolipoprotein A5 -1131T>Cpolimorphism with obesity. A cross sectional

study has been carried out on 139 subjects. Nutrient intake data was collected by

using a 24 hour dietary recall and analyzed by nutrisurvey software.

Anthropometric variables were measured and body mass index (BMI).

Apolipoprotein A5 -1131T>C polymorphism was visualized with 5% agarose

gel after restriction length fragment polymorphism (RFLP) digested with MseI.

Subjects in this study were 55 male and 84 female, with average age 19.20 ±

1.08, 75 had obese and 64 non obese. Based on the chi square test is found a

relationship between total energy intake and protein intake in obese group

compared to the non-obese group (p = 0.029, p = 0.006) and no relationship was

found in Apolipoprotein A5 -1131T> C polymorphism with obesity. These

findings indicate that nutrient intake no depending with apolipoprotein A5 gene

variant to modulate obesity.


20




Potential of Basidiomycetous Fungi Isolated from

Gunung Barus Forest North Sumatera in Decolorization

of Wastewater of Textile Industry

Erman Munir*, Nunuk Priyani, Dwi Suryanto, and Zulfatun Naimah

Laboratory of Microbiology, Department of Biology

Faculty of Mathematic and Natural Science

University of Sumatera Utara Medan 20155 INDOENSIA

Email: [email protected]

Abstract. A study of basidiomycetous fungi in decolorization of wastewater of

textile industry has been started in our laboratory. The objective of this study was to

obtain potential isolates and to examine their decolorization acitity. The fungi were

isolated from local forest, Gunung Barus Forest, in North Sumatera and screened

their ligninolytic activity qualitatively by bavendam method and the waste was

obtained from local textile industry in Medan. Nineteen fungal isolates grew on plate

agar medium containing 100% of waste supplemented with 2% glucose, and 6 of

those exhibited good growth when glucose in the media was reduced to 1%.

Surprisingly, these six potential isolates grew, although relatively at lower rate,

when glucose was not included in the media. Meanwhile, there was no substantial

decolorization of media could be observed on all plates cultures. Analyses of

decolorization on liquid condition containing 25% of wastewater and no glucose

showed that fungal grew at the bottom culture flask. All 6 isolates exhibited

decolorization activity. Interestingly, mass of mycelia growth at the bottom

absorbed dyes and dissolved suspended solid which was seemingly separated from

very clean solution medium surrounding. These results indicated that the cultures

utilized carbon source from waste and the extracellular matrixes produced by fungal

isolates might involve in decolorization of textile wastewater.

Keywords: basidiomyeces, decolorization, textile wastewater, extracellular

matrixes


21



Microencapsulation of Limonin From Orange Juice

Waste Using Maltodextrin

Dewi Cakrawati*1, Mustika N. Handayani2

Agro-industrial Technology Education Program, Faculty of Technology and

Vocational Education, Universitas Pendidikan Indonesia

E-mail : [email protected], [email protected]

Abstract. The study aims were to determine the effect of ratio between limonin and

encapsulant on encapsulation efficiency and to know limonin encapsulant stability

on aqueous with pH value of 7. Research was conducted using deskriptive method

and limonin stability was measure every 2 days for 14 days using spectrofotometer

methods. Aqueous with pH value of 7 was made by adding disodium hydrogen

phosphate to aquades until pH value reach 7. Result showed ratio on limonin versus

maltodetrin 1: 10, had encapsulation efficiency of 89.73%. Maltodextrin had a

straight chain so that the material was more easily enter into encapsulant. Limonin

was stable on acidic aqueus with pH value 5-7. Application on limonin

enkapsulation on aqueous with pH value of 7, showed that limonin activity had two

peak on day 4 and 12. Limonin encapsulant had spesific pattern of time release that

help it to be easier for application on food or medicine.


22




Microbial reduction of Cr (VI) in to Cr (III) by locally

isolated Pseudomonas aeruginosa

Heli Siti Halimatul Munawaroh*1, Gun Gun Gumilar2, Siska

Kartikasari 3, Diah Kusumawaty4, Lilik Hasanah5

1-3Program Studi Kimia, FPMIPA Universitas Pendidikan Indonesia 4 Program Studi Biologi, FPMIPA Universitas Pendidikan Indonesia

5 Program Studi Fisika, FPMIPA Universitas Pendidikan Indonesia

Jl. Dr. Setiabudhi No. 229, Bandung 40154, Jawa Barat-Indonesia


Abstract. This study aims at investigating the influence of Cr (VI) on growth of

pseudomonas aeruginosa and Cr (VI) reduction in to Cr (III) on leather tannery

effluent model by indigenous pseudomonas aeruginosa. The effect of Cr (VI) on

pseudomonas aeruginosa growth was checked by growing the isolated in the

medium containing certain concentration of sodium dichromat (K2Cr2O7) as source

of hexavalent chromium. Specthrophotometer analysis showed that the rate of

pseudomonas aeruginosa growth decreased at the concentration of 100 ppm of

hexavalent chromium (Cr (VI)). In addition, the reduction of Cr (VI) was monitored

by growing the isolated in the medium with K2Cr2O7. The result of AAS and

specthrophotometer show the decreased of Cr (VI) concentration in the medium

from 100 to 5.86 ppm with the conversion efficiency reach to 94.73% during 48

hours of the treatment. High efficiency conversion of Cr (VI) in to Cr (III) indicates

the possibility of pseudomonas aeruginosa as promising bio.


23



Development and Characterization of Chitosan-TPP

Nanoparticles for Delivery of Double-Stranded Small

Interference RNA (Ds Sirna) Myd88 In Vivo

D Kusumawaty1*, S Suhandono2, T Kristianti3, A Pancoro2 and INP

Aryantha2 1Dept. of Biology Education, Indonesia of Education University, Jl. Dr.

Setiabudi No 229 Bandung Indonesia 2School of Life Science and Technology. Bandung Institute of Technology

(ITB), Jl. Ganesha No 10 Bandung Indonesia 3 Dep. Of Biology Education STKIP Garut, JL. Pahlawan Sukagalih, No. 32,

Kabupaten Garut, Jawa Barat


Abstract. The use of small double-stranded RNA (ds-siRNA) for gene silencing

has been widely studied. However, is hampered by the rapid degradation and little

absorption into the cellular uptake system, especially in vivo. Nanoparticles of

chitosan-TPP have the potential to particles that can protect vulnerable siRNA ds

degraded when entered into the body of the organism. The purpose of this study was

to characterize dssiRNA size of 21 nucleotides that are packed into nanoparticles of

chitosan-TPP using PSA and TEM analysis. The average size of the fresh particles

(6 hours old) being analyzed by the PSA is 182 nm. The observation using TEM

(Transmission Electron Microscope) showed spherical shape and size of the

nanoparticles in the range of 12-300 nm and zeta potential has a value of 21.1 mV.

From observations also show that the avarage size of chitosan-TPP nanoparticles

without ds siRNA has a particle size (278 nm) larger than the nanoparticles of

chitosan-TPP binding to ds siRNA. Nanoparticles of chitosan-TPP-ds-siRNA were

kept for 48 hours (203 nm) is greater than the nanoparticles which 6 hours old.

Keywords: chitosan-TPP, nanoparticles, ds si RNA, myd88, silencing gene


24




The Effect of Turmeric Rhizome (Curcuma

Xanthorrhiza) on Reproductive Aspect of Male Mice

(Mus Musculus) Swiss Webster

Didik Priyandoko1, Hernawati1 , Fitria Rachmayati 1 1Study Program of Biology, Departement of Biology Education, Faculty of

Mathematics and Science Education, Indonesia University of Education.


Abstract. Turmeric rhizome (Curcuma xanthorrhiza) containing various chemical

components including curcumin, protein, starch and essential oils are known to

degrade cell proliferation. This study aims to determine the effect of turmeric extract

on reproductive aspects of mice (Mus musculus) male. The subjects were 24 male

mice, were divided into 4 groups (control, 140 mg / kg, 280 mg / kg and 700 mg /

kg). Mice were treated by gavage for 30 days after the previous acclimatization for

7 days. Samples taken from the epididymal sperm in mice and testing the number,

motility and sperm abnormalities. While testicular taken to get the incision and

measure the weight of the seminiferous tubules of the testes. The data obtained were

analyzed with the Kruskal Wallis and Mann Whitney (p <0.05) with a 95%

confidence level. The results showed that turmeric extract for 30 days significantly

influence the decrease in testicular weight, but no significant effect on sperm count,

motility, abnormalities and testicular histology incision.

Keyword: Curcuma xanthorrhiza, Reproductive, Mice



25



Analysis of Rural People's Knowledge about Medicinal

Plants that are Beneficial to Health

Hernawati*, Didik Priyandoko, Rita Shintawati

Department of Biology Education

Faculty of Mathematics and Sciences Education

Universitas Pendidikan Indonesia, Bandung

Dr. Setiabudi No. 229 Bandung, 40154

E-mail : [email protected]

Abstract. Health is one of the basic human needs, in addition to the need for

clothing, food, shelter and education. Knowledge of the dietary fiber is very

important for rural communities in Indonesia to support health. It is caused, this

time there has been a shift or change in lifestyle, which causes mortality and

morbidity in the community increased, marked by changing patterns of infectious

diseases become degenerative and metabolic diseases. Place of research conducted

in the village Cisalak, the town of Subang, West Java Province, Indonesia. Direct

teaching model with the method of demonstration and discussion are used to convey

the subject of a variety of food sources that are good for health. Learning is done by

informal. Data were obtained by interview and questionnaire, were analyzed

descriptively. Samples used in this study as many as 75 people. The results showed

that as many as 91.80% of rural communities are not taking chemical drugs when

experiencing pain, 72.13% preferred taking herbal or traditional medicines. A total

of 63.93% of rural communities expressed the availability of medicinal plant

materials slightly, 68.85% do not have knowledge about the dispensing of medicinal

plants. As many as 96.72% do not know the benefits of vegetables and fruits,

59.02% do not always adjust diet, and 83.61% did not know the suitability of the

food consumed by its function. It can be concluded that the knowledge society in

Cisalak village, town Subang, West Java Province, Indonesia needs to be improved

by providing counseling and training continuously.

Keyword: Health, Direct Teaching Models, Methods Demonstration, Medicinal

Plants

26


Biomedical Presentation Code: B-10-09


Developing Expert System For Tuberculosis Diagnose

To Support Knowledge Sharing In The Era of National

Health Insurance System

L Lidya1

1Lecturer, Informatics Department, Pasundan University, Bandung,

Indonesia

Email : [email protected]

Abstract. National Health Insurance has been implemented since 1st January 2014.

A number of new policies have been established including multilevel referral

system. The multilevel referral system classified health care centerinto three levels,

it determined that the flow of patient treatment should be started from first level

health care center. There are 144 kind of diseases that must be treat in the first level

which mainly consists of general physicians. Unfortunately, competence of the

physician in the first level may not fulfil the standard competence yet. To improved

the physisians knowledge, government has created many events to accelerate

knowledge sharing. However, it still needs times and many resources to give

significan results. Expert system is kind of software that provide consulting services

to non-expert users in accordance with the area of its expertise. It can improved

effectivity and efficiency of knowledge sharing and learning. This research was

developed a model of TB diagnose expert system which complywith the standard

procedure ofTB diagnosis and regulation. The proposed expert system has

characteristics as follows provide facility to manage multimedia clinical data,

supporting the complexity of TB diagnosis (combine rule-based and case-based

expert system), interactive interface, good usability,multi-platform, evolutionary.


27

Biomedical Presentation Code: B-10-10


Physicochemical Characteristics of Mung Bean Kefir

with Variation Levels of Skim Milk and Fermentation

Time

I Sadiah1 and, A Nurlaelasari2

1Departement of Agroindustry Technology Education, Universitas

Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat,

Indonesia 2Departement of Biology Education, Universitas Pendidikan Indonesia, Jl.

Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia

E-mail: iis.sa’[email protected] / [email protected]

Abstract. Kefir is fermentation milk drink as yoghurt which is classified to

functional drink. Kefir has a benefit for health that could reduce blood cholesterol

levels. Kefir is usually made of fresh milk as cow and goat milk. Kefir is also made

of vegetable milk as mung bean milk. Mung bean consists of complete nutririon that

are protein, fat, vitamin as phosporic acid, B1, riboflavin, B6, pantotenat acid,

niasin, and mineral. Mung bean also contains bioactive component that is oleanolic

acid which is functioning to inhibit cardiovascular diseases and increase immune

system. The purpose of this reseach is to find the effect of skim milk concentration

and fermentation time to chemical natures (pH, total acid number, alcohol level) of

kefir cider mung bean and its formulation that is favored by the panel. The research

method is Factorial RAL (Stands for Rancangan Acak Lengkap) method. The first

factor is skim milk concentration treatment (0%, 3%, 5%, and 7%) which is added

to cider mung been and second factor is fermentation time (21 hours, 24 hours and

27 hours). The result of study is analized by One-Way Analysis Of Variances

(ANOVA). The result showed that pH range of 3.8-4.4, total acid number range of

1-3%, alcohol level is 0.39%, viscosity range of 3.20-3.25 dPaS. Based on

organoleptic test, kefir favored by panel is kefir with skim milk concentration 7%,

fermentation time 27 hours, pH 3.94, lactate acid 2.6%, alcohol level 0.39% and

viscosity 3.25 dPaS.

28


Chemical Engineering Presentation Code: B-02-05


The Use of Mango Seed Arum Manis Type (Mangifera

Indica L) as Biosorbent

SetiatyPandia, SyamsulAmien, NickoSanjaya and AndikaSetiawan

Engineering Faculty, Universitas Sumatera Utara

Almamater Street, Medan 20155-Indonesia


Abstract. This research was conducted to study the effectiveness of mango seed

Arum Manis type as biosorbent. Methods used in study were pretreatment and

activation process. The mango seeds were cleaned, dried under the sun and crushed

to pass through 140 mesh. And then they were activated with 3N chloric acid at

certain ratio. After heating at 70 oCfor two hours, cooling under room temperature,

they were washed with aquadest. At last, the powder was activated physically

(calcinating) at several temperature. The best condition for chemical and physical

activation were concluded by taking the highest Iodine Number of each sample.

Comparing to the standard of activated carbon issued by SNI 06-3730-1995it was

found that the highest of the Iodium Number was 803,79 mg/g, ash content was 8

% and moisture content was 13,3 % at condition the ratio of mango seed to 3N

chloric acid 1:4 (w/v) and calcinating temperature 110 oC which means biosorbent

from mango seed has met the standard from these three paramaters.


29



Characterization of Sodium Carbonate (Na2CO3)

Treated Rice Husk Activated Carbon and Adsorption of

Lead from Car Battery Wastewater

Farida Hanum, OktaBani and AzzahMunaIzdiharo*

Department of Chemical Engineering, Faculty of Engineering, University of

Sumatera Utara, Medan 20155


Abstract. The use of rice husk as adsorbent would not only reduce its disposal

problems, but would also produce value-added products, such as activated carbon

derived from rice husk. This study aimed to determine the optimum carbonization

temperature for activated carbon production from rice husk and its adsorption

performance on Pb in car battery wastewater. In this study, activated carbon was

produced by carbonizing rice husk 400–600 °C for 90–150 minutes followed by

chemical activation using 5% Na2CO3 and sieving to 100 meshes. Lead adsorption

was measured using atomic absorption spectroscopy (AAS). Results suggested that

highest carbon yield of 47.75% was obtained for carbonization at 500 °C for 150

minutes. At that condition, produced activated carbon contained 3.35% moisture,

30.86% ash, 18.04% volatile matter. The adsorption capacity was found to be

0.6007 mg lead/g adsorbent with%adsorpsi 58.08%

Keywords: rice husk, activated carbon, carbonization, Na2CO3, Pb


30




Effect of Turning Frequency on Composting of Empty

Fruit Bunches Mixed with Activated Liquid Organic

Fertilizer

BambangTrisakti*, JeniLubis, T. Husaini, and Irvan

Chemical Engineering Department, Faculty of Engineering, University of

Sumatera Utara. JalanAlmamaterKomplek USU Medan, 20155, Indonesia


Abstract. Composting of Empty Fruit Bunch (EFB) by mixing it with activated

liquid organic fertilizer (ALOF) is an alternative way in the utilization of solid waste

produced from the palm oil mill (POM). This research was to determine the effect

of turning frequency on the rate of composting of EFB mixed with ALOF in a basket

composter. The composting process was started with cutting the EFB into pieces

with size 1-3 cm, inserting the EFB pieces into basket composter (33 cm W × 28 cm

L × 40 cm H), and adding ALOF until moisture content (MC) in the range of 55-

65%. During composting, the MC was maintained at 55-65% range by adding the

ALOF. The turning frequency on each composter was varied i.e. once in every 1, 2,

3, 4, and 5 days. The parameters analysed during composting were temperature, pH,

MC, compost weight, water holding capacity (WHC), CN ratio, and the quality of

the final compost. Composting was carried out for 40 days and the best result

obtained at turning frequency was 3 days. The best compost characteristic was pH 9.0; MC 57.24%; WHC 76%; CN ratio 12.15%; P 0.58%; and K 0. 95%.



31

Chemical Engineering Presentation Code : B-02-06


Characterization of Activated Carbon from Rice Husk

by HCl Activation and Its Application for Lead (Pb)

Removal in Car Battery Wastewater

Farida Hanum, OktaBani, Lulu IkaWirani Br P

Chemical Engineering Department, Faculty of Engineering, Universitas

Sumatera Utara, Medan 20155


Abstract. Activated carbon is highly porous carbon which has been treated to

increase its adsorption performance. Rice husk, due to its high cellulose and lignin

content, can be used as source of carbons to produce activated carbon. This research

aims to evaluate the effects of carbonization time and temperature on activated

carbon production from rice husk and its application for lead (Pb) adsorption in car

battery wastewater. In this research, dried rice husk was carbonized at 400–600

°Cunder constant nitrogen flow for 90 minutes to 150 minutes, followed by

chemical treatment using HCl. Dried activated carbons was sieved to 100 meshes

prior to application. Result indicated that maximum carbon yield of 49.33% was

obtained at carbonization temperature of 500 °C and carbonization time of 150

minutes. The activated carbon contained 4.86% moisture, 30.04% ash, and 15.76%

volatile matter. The adsorption capacity was found to be 0.56731mg/g with

percentage removal 54.85%.

Keywords: Rice husk, carbonization, activated carbon, HCl, adsorption.

32




The Effect of Operating Conditions on Drying

Characteristics and Quality of Ginger

(Zingiberofficinale Roscoe) Using Combination of Solar

Energy-Molecular Sieve Drying System

R Hasibuan1*, and M A Zamzami1

1Department of Chemical Engineering, Universitas Sumatera Utara, Jl.

AlmamaterKampus USU Medan 20155.


Abstract. Ginger (Zingiberofficinale Roscoe) is an agricultural product that can be used as beverages and snacks, and especially for traditional medicines. One of the important stages

in the processing of ginger is drying. The drying process intended to reduce the water content

of 85-90% to 8-10%, making it safe from the influence of fungi or insecticide. During the

drying takes place, the main ingredient contained in ginger is homologous ketone phenolic known as gingerol are chemically unstable at high temperatures, for the drying technology is

an important factor in maintaining the active ingredient (gingerol) which is in ginger. The

combination of solar energy and molecular sieve dryer that are used in the research is capable

of operating 24 hours. The purpose of this research is to study the effect of operating conditions (in this case the air velocity) toward the drying characteristics and the quality of

dried ginger using the combination of solar energy and molecular sieve dryer. Drying system

consist of three main parts which is: desiccator, solar collector, and the drying chamber. To

record data changes in the mass of the sample, a load cell mounted in the drying chamber, and then connected to the automated data recording system using a USB data cable. All data

of temperature and RH inside the dryer box and the change of samples mass recorded during

the drying process takes place and the result is stored in the form of Microsoft Excel. The

results obtained, shows that the air velocity is influencing the moisture content and ginger drying rate, where the moisture content equilibrium of ginger for the air velocity of 1.3 m/s

was obtained on drying time of 360 minutes and moisture content of 2.8%, at 1.0 m/s was

obtained on drying time of 300 minutes and moisture content of 1.4%, at 0, 8 m/s was

obtained at 420 minutes drying time and the moisture content is 2.0%. The drying characteristics shows that there are two drying periods, which is: the increasing drying rate,

and the falling drying rate, while the constant drying rate is not visible. The result of ginger

quality shows that there are no significant changes in the organoleptic analysis, the ash

content is about 7.52-7.94% and the oil content is 0.79-0.83%.


33



The Produce of Methyl Ester from Crude Palm Oil

(CPO) Using Heterogene Catalyst Ash of Chicken Bone

(CaO) Using Ethanol as Solvent

Mersi Suriani Sinaga1, Rahmad Fauzi2, Jefry Reynaldi Turnip1


Abstract.Methyl Ester (methyl ester) is generally made by transesterification using

heterogeneous basecatalyst. To simplify the separation, the heterogeneous catalyst is

used, such as CaO, which in this case was isolated from chicken bones made by

softening chicken bones and do calcination process. Some other important variables

other than the selection of the catalyst is the catalyst dosage, molar ratio of ethanol to

the CPO and the reaction temperature. The best result from this observe is at the molar

ratio of ethanol to the CPO is 17: 1, the reaction temperature is 70 ° C and 7% catalyst

(w.t) with reaction time for 7 hours at 500 rpm as a constant variable,got 90,052 %

purity, so that this result does not get the standard requirements of biodiesel, because of

the purity of the biodiesel standard temporary must be achieve > 96.5 %. This study

aims to produce methyl ester yield with the influence of the reaction temperature,

percent of catalyst and molar ratio of ethanol and CPO. The most influential variable is

the temperature of the reaction that gives a significant yield difference of

methylesterproduced. It’s been proven by the increasing temperature used will also

significantly increase the yield of methylester.

Keywords: methyl ester, CaO catalyst, crude palm oil, ethanol, transesterification.

34




Effect of Hydrochloric Acid Concentration as Chitosan

Solvent on Mechanical Properties of Bioplastics from

Durian Seed Starch (DurioZibethinus) with Filler

Chitosan and Plasticizer Sorbitol

Muhammad Hendra S. Ginting, RosdanelliHasibuan, Maulida Lubis,

Dicky S. Tanjung, and Nilna Iqbal

Departement of Chemical Engineering, Faculty of Engineering, University

of Sumatera Utara,Medan, Indonesia

Jl. AlmamaterKampus USU Medan 20155


Abstract. The production of starch based bioplastic from durian seed as polymer

matrix with addition of chitosan as filler and sorbitol as plasticizer were

investigated. The aim of this research to obtain the effect of hydrochloric acid

concentration as chitosan solvent on the mechanical properties of bioplastics

included tensile strength, elongation at break, modolus young, functional group

using FT-IR, surface morphology using SEM. Starch is the raw material for

bioplastics which extracted by the durian seeds, then characterized to determine its

chemical composition. The method of bioplasticproduction used in this research

was casting method. Variation of hydrochloric acid concentration used 0.9%v,

1.0%v, 1.1%v, 1.2%v and 1.3%v. Bioplastic were analyzed physical and chemical

properties. From the analysis, best condition of bioplastics obtained at hydrochloric

acid concentration 0,9%v with temperature 70oC for tensile strength 10,629 MPa,

elongation at break 8,207%, and modolus young 129,514MPa.From the results of

FT-IR analysis indicated O-H group and N-H group on bioplastics due to the

addition of chitosan and sorbitol. The results of mechanical properties were

supported by Scanning Electron Microscopy (SEM) showed the bioplastic with

chitosan as filler and plasticizer sorbitol have the fracture surfaces were a bit rough

and jagged.

Keywords: durian seed, bioplastic, chitosan, hydrochloric acid, sorbitol


35



Effect of Agitation on Acidogenesis Stage of Two-Stage

Anaerobic Digestion of Palm Oil Mill Effluent (POME)

into Biogas

Bambang Trisakti*, Irvan, Herypasc Adipasah, Taslim, and

Muhammad Turmuzi

Chemical Engineering Department, Faculty of Engineering, University of

Sumatera Utara. Jalan Almamater Komplek USU Medan, 20155, Indonesia


Abstract. The acidogenesis stage in two-stage anaerobic digestion of palm oil mill

effluent (POME) was studied in a continuous stirred tank reactor (CSTR). This

research investigated the effect of agitation rate on the growth of microorganisms,

the degradation of organic substances, and volatile fatty acids (VFA) production and

composition. Initially, the suitable loading up was determined by varying the HRT

6.7, 5.0, and 4.0 days in a 2 L CSTR with agitation rate 50 rpm, pH 6.0 ± 0.2, at

room temperature. Next, effect of agitation on the process was determined by

varying agitation rate at 25, 50, 100, and 200 rpm. Analysis of total solids (TS),

volatile solids (VS), total suspended solids (TSS), volatile suspended solids (VSS),

chemical oxygen demand (COD), and volatile fatty acids (VFA) were conducted in

order to study the growth of microorganisms and their abilities in converting organic

compound to produce VFA. The highest growth of microorganisms was achieved at

HRT 4.0 day with microorganism concentration was 20.62 mg VSS/L and COD

reduction was 15.7%. The highest production of total VFA achieved was 5,766.61

mg/L mg/L at agitation rate 200 rpm, with concentration of acetic acid, propionic

acid and butyric acid were 1,889.23; 1,161.43; and 2,725.95 mg/L, respectively.

While degradation VS and COD were 16.61 and 38.79%.


36




Preparation of Activated Carbon from Palm Shells

Using KOH and ZnCl2 as the Activating Agent

Yuliusman1,*, Nasruddin2,Muhammad Khairul Afdhol1, Rahmatika

Alfia Amiliana1, Afdhal Hanafi1, Bimaseta Rachmanda1 1Chemical Engineering Department, University of Indonesia, KampusBaru

UI Depok, Indonesia 2Mechanical Engineering Department, University of Indonesia,

KampusBaru UI Depok, Indonesia

E-mail: [email protected], and [email protected]

Abstract. Palm shell is a potential source of raw materials for the produce of

activated carbon as biosorbent for quite large numbers. The purpose of this study is

to produce activated carbon qualified Indonesian Industrial Standard (SNI), which

will be used as biosorbent to purify the impurities in the off gas petroleum refinery

products. Stages of manufacture of activated carbon include carbonization,

activation of chemistry and physics. Carbonization of activated carbon is done at a

temperature of 400oC followed by chemical activation with active agent KOH and

ZnCl2. Then the physical activation is done by flowing N2 gas for 1 hour at 850 °C

and followed by gas flow through the CO2 for 1 hour at 850 °C. Research results

indicate that activation of the active agent KOH produce activated carbon is better

than using the active agent ZnCl2.The use of KOH as an active agent to produce

activated carbon with a water content of 13.6%, ash content of 9.4%, iodine number

of 884 mg/g and a surface area of 1115 m2/g. While the use of ZnCl2 as the active

agent to produce activated carbon with a water content of 14.5%, total ash content

of 9.0%, iodine number 648 mg/g and a surface area of 743 m2/gram.

Keywords: activated carbon, palm shell, carbonization, activation, active agent

mailto:[email protected],%20and%[email protected]


37



Removal of Metal Iron FromGroundwater Using Aceh

Natural Zeolite and Membrane Filtration

Mulyati S, Arahman N, Syawaliah2 and Mukramah2

1)Syiah Kuala University, Banda Aceh, Indonesia, 23111 2)Graduate School of Engineering Science, Syiah Kuala University,

Indonesia

E-mail:[email protected]

Abstract. The adsorption and the ultrafiltration processes were combined for

removal of Fe2+in water sample solution. Aceh natural zeolite used as an adsorbent,

and three kind of ultrafiltration membranes (M10K, M30K, and MPVP) were used

in this study.The concentration of Fe2+in the product of adsorption and ultrafiltration

is about 0.254 mg/L. This value is below the permissible limit of ferrous metal (0.3

mg/L) in drinking water.The combination of adsorption and ultrafiltration can be

used as an alternative treatment of excess iron content in groundwater.

38




Effects of PEG Molecular Weights on PVDF Membrane

for Humic Acid-Fed Ultrafiltration Process

Syawaliah1, Nasrul Arahman2, Mukramah1 and Sri Mulyati2*

1) Graduate School of Engineering Science, UniversitasSyiah Kuala 2)Department of Chemical Engineering, UniversitasSyiah Kuala

JalanTgk. SyehAbdurrauf no.7, Darussalam Banda Aceh, Indonesia, 23111


Abstract. This paper reports the performance and characterization of asymmetric

PVDF ultrafiltration flat sheet membranes with polyethylene glycol (PEG) of

different molecular weight as additives. The membranes were prepared via phase

inversion technique by using DMAc as solvent and polyethylene glycol with

molecular weights of 2000, 6000 and 20000 Da as additives in the dope formulation.

The performance of membrane was characterized using humic acid as natural

organic matter source. Membrane properties were evaluated in terms of pure water

flux, and humic acid rejection. The results indicated that the pure water flux of

membranes increased with the increase of PEG molecular weights. Fourier

transform infrared spectroscopy results revealed the presence of PEG in the

PVDF/PEG membrane with the significant appearance of the N-CH3 peak at 2877

cm-1. Scanning electron microscopy analysis was performed to investigate the

effects of additives on the morphological structure of the membrane. It was

disclosed that the porosity of the resulted membranes increased with the addition of

PEG.


39



Influence of Brij58 on the Characteristic and

Performance of PES Membrane for Water Treatment

Process

Mukramah1, Syawaliah1, Sri Mulyati2, Nasrul Arahman2* 1Graduate school of Engineering, UniversitasSyiah Kuala 2Department of Chemical Engineering, UniversitasSyiah Kuala.

Jl.TengkuSyechAbdurrauf No. 7, Darussalam, Banda Aceh 23111,

Indonesia


Abstract. This study proposes a modification of polyethersulfone (PES) membrane

by blending the polymer with a hydrophilic additive of Brij-58. Flat-sheet PES

membrane was prepared through a non-solvent induced phase separation (NIPS)

method using dimethylformamide (DMF) as a solvent. PES membrane was

modified by adding Brij-58 into dope solution at a different concentration, i.e 1, 3,

5, 7, and 10 wt %. The fabricated membranes were characterized by means of

Scanning ElectronMicroscopy (SEM) and Fourier TransformInfra-Red (FTIR)

spectroscopy. Filtration performance of membrane was analyzed by using a dead-

end module. It is found that the addition of a small amount of Brij into polymer

solution brought about the increase of water flux. FT-IR investigation showed that

the additive exist on the surface of a blended membrane.


40




Aspen HYSYS Simulation for Biodiesel Production

from Waste Cooking Oil using Membrane Reactor

YB Abdurakhman, ZA Putra*, and MR Bilad

Department of Chemical Engineering, Universiti Teknologi PETRONAS,

Bandar Seri Iskandar, 32610 Tronoh, Perak, Malaysia


Abstract. Biodiesel is a promising energy alternative solution to cater the demand

of clean sustainable energy sources. Conventional biodiesel production is done by

transesterification method using stirred tank reactor and homogeneous base catalyst,

then followed by purification process. However, there are some drawbacks

associated with this method. They include soap formation, sensitivity to free fatty

acid (FFA) content and purification difficulties. Due to these downsides, biodiesel

production using heterogeneous acid catalyst in membrane reactor is proposed. This

project is aimed to study the effect of FFA content and membrane separation

effectiveness on FAME yield. Waste cooking oil, inorganic pressure-driven

membrane and WAl is used as raw material, membrane and heterogeneous acid

catalyst, respectively. Biodiesel yield formulation is derived from literature data and

then used in an Aspen HYSYS process simulation. Early phase cost estimation

shows that FFA content does not affect the estimated capital investment, while the

membrane separation effectiveness does significantly. Future work will include its

comparison with the conventional biodiesel production process.


41



Role of Surface Pores on Fouling of Polyvinylidene

Fluoride Membranes in Submerged Membrane

Bioreactors

MR Bilad,1,2,* J Druyts2 and IFJ Vankelecom2

1Department of Chemical Engineering, Universiti Teknologi Petronas,

Bandar Seri Iskandar, Perak 32610, Malaysia

2Centre for Surface Chemistry and Catalysis, Faculty of Bioscience

Engineering, KU Leuven, Celestijnenlaan 200F, Box 2461, 3001 Leuven,

Belgium


Abstract. In this study, the roles of surface pores on membrane fouling was

investigated using three membranes in two lab-scale membrane bioreactors.

Characterization of the pristine membranes revealed that increasing polymer

concentration decreases pore sizes and porosity. Critical flux was found to decrease

with decreasing pore sizes. The finding was consistent for both MBRs. The results

of the long-term filtration were in agreement with the flux-stepping test. The fouling

layer was easily removed and only a few small particles remained as were observed

with scanning electron microscopy. Surface pore sizes and porosity declined for all

cleaned membranes, indicating permanent pore blocking, and the effect was higher

for membranes with larger pore size.

42


Chemical Engineering Presentation Code: -


Synthesis of Potassium Silicate Nanoparticles from Rice

Straw Ash Using A Flame-assisted Spray-pyrolysis

Method

A B D Nandiyanto1,*, N Permatasari1, T N Sucahya1, A G Abdullah2

and L Hasanah3

1Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no

229, Bandung 40154, Jawa Barat, Indonesia 2Departemen Pendidikan Teknik Elektro, Universitas Pendidikan

Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia 3Departemen Fisika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no

229, Bandung 40154, Jawa Barat, Indonesia


Abstract. The purpose of this study was to synthesize potassium silicate

nanoparticles from rice straw ash using a flame-assisted spray-pyrolysis method.

Rice straw, as one of the agricultural wastes, was used as a source of silica. In the

experimental procedure, rice straw was burned at 700°C for 3 hours to produce rice

straw ash. Then, the rice straw ash was extracted using an alkaline method. We used

potassium hydroxide (KOH) as an alkalline chemical agent as well as a source of

potassium. The solutiuon was then put into the flame-assisted spray-pyrolysis

apparatus to produce potassium silicate nanoparticles. The results showed that the

spray method can assist the production of spherical potassium silicate nanoparticles

with sizes of about 50 nm.

Keywords: rice straw; agricultural waste; potassium silicate; alkaline extraction.


43



Changes in Meteorological Parameters (I.E. UV and

Solar Radiation, Air Temperature, Humidity, and Wind

Condition) During the Partial Solar Eclipse of 9 March

2016

B Paramitha1, R Zaen2, and A B D Nandiyanto2,*

1Departemen Pendidikan Teknik Elektro, Universitas Pendidikan

Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia 2Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no



Abstract. Solar eclipse is a spectacular phenomenon, which occurs when the

position of the moon is between the sun and the earth. This phenomenon affects to

the meteorological parameters, such as solar radiation, temperature, and humidity.

The purpose of this study was to evaluate the impact of partial solar eclipse of 9

March 2016 to the change of several meteorological parameters. In the experimental

procedure, we used automatic weather station (AWS) in one of building in

Universitas Pendidikan Indonesia in Bandung. Bandung was selected because this

place experienced partial (88.89%) solar eclipse on 9 March 2016. The result

showed that compared to normal day, meteorological parameters changed during

the solar eclipse, such as decreases in the UV and solar radiation, increases in relative humidity, and changes in air temperature and wind condition.

44




Behavior of Photovoltaic during the Partial Solar

Eclipse in Bandung

A B D Nandiyanto1*, A Rusli1, A Purnamasari1, A G Abdullah2 and L S

Riza3



Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia 3Departemen Ilmu Komputer, Universitas Pendidikan Indonesia, Jl. Dr.

Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia


Abstract. The purpose of this study was to investigate the behavior of photovoltaic

system during the partial solar eclipse phenomenon of 9 March 2016 in Bandung,

Indonesia. In the experimental method, we monitored the impact of the solar eclipse

on the photovoltaic system in solar cell system. To qualitatively explain the

experimental observations, we compared the behavior of photovoltaic system in the

solar eclipse day (9 March 2016) with the two sunny days (8 and 10 March 2016).

The experimental results showed that the intensity and electricity power increased

along with the solar light irradiation time. However, when there is a solar eclipse

phenomenon, the intensity and electricity power is suddenly down.


45

Chemistry Presentation Code: A-04-06


Application of Epichlorohydrin Crosslinked

Chitosan/Eggshell Composite as an Adsorbent for Cd

ions Removal from Aqueous Solutions

Rahmi*, Marlina and Nisfayati

Chemistry Department, Syiah Kuala University, Banda Aceh, Indonesia


Abstract. The use of epichlorohydrin crosslinked chitosan/eggshell composite as an

adsorbent for Cd ions removal from aqueous solutions was investigated. The factors

affecting adsorption such as pH and contact time were considered. The results

showed that the optimum pH of adsorption was pH = 5.0 and the equilibrium time

of adsorption was 40 min. The adsorption isotherm of Cd ions onto epichlorohydrin

crosslinked chitosan/eggshell composite was well fitted to Langmuir equation. The

maximum adsorption capacity (fitting by Langmuir model) was 11,7647 mg/g. The

pseudo second-order model could describe adsorption process better than pseudo

first order model. Furthermore, the adsorbent still exhibited good adsorption

performance after regeneration.


46




Synthesis of polyurethanes membranes fromrubber

seed oil and methylene diphenyl diisocyanates (MDI)

Marlina1*, SNurman2, SSaleha1, Fitriani1, and IThanthawi1 1Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam,

Universitas Syiah Kuala, Jalan T. Tanoh Abe No. 3, Darussalam, Banda

Aceh 23111, Aceh. 2Jurusan Teknologi Industri Pertanian, Universitas Serambi Mekkah, Jalan

Tgk. Imum Lueng Bata,Batoh, Banda Aceh 23245, Aceh.


Abstract. Rubber seed oil and methylene diphenyl diisocyanates (MDI)based

polyurethane membranehas been prepared in this study. The main objective of this

research is manufacture of polyurethane membranes from avocado seed oil, as a

filter of this membrane use as a filter of metals from water such as mercury (Hg). In

this study, the polyurethane membrane had been synthesized by varying

compositions of rubber seed oil and MDI, with ratios of 10:0.2; 10:0.4; 10:0.6;

10:0.8; 10:1.0; 10:1.2; 10:1.4; 10:1.6; 10:1.8 and 10:2.0 (v/w) at 80°C and 170oC

as polymerization and curing temperatures, respectively.Optimum polyurethane

membrane was obtained at rubber seed oil:MDI10: 0.8 v/w, it was dry, non-sticky,

smooth and blackish brown. The membrane flux was 5,8307 L / m2.h.bar and

rejection factor was 35,3015 %. The results of characterization indicated the

formation of urethane bonds (NH at 3480 cm-1, C=O at 1620 cm-1, CN pada 1374

cm-1, -OC-NH- at 1096 cm-1 and no -NCO at 2270 cm-1), the value of Tg was 55oC.

The polyurethane membranewhich treated at the optimum treatment conditions

were used to the filter of metals from water such as mercury (Hg).

Keywords: rubber seed oil, methylene diphenyl diisocyanate, polyurethane,

membrane, thermal properties


47



Comparison of Microcrystalline Characterization

Results From Oil Palm Midrib Alpha Cellulose Using

Different Delignization Method

S Yuliasmi1, T R Pardede1, Nerdy1, H Syahputra1

1Department of Pharmaceutical Chemistry, Faculty of Pharmacy,

University of Sumatera Utara, Medan, Sumatera Utara, Indonesia, 20155


Abstract. Oil palm midrib is one of the waste generated by palm plants containing

34.89% cellulose. Cellulose has the potential to produce microcrystalline cellulose

can be used as an excipient in tablet formulations by direct compression.

Microcrystalline cellulose is the result of a controlled hydrolysis of alpha cellulose,

so the alpha cellulose extraction process of oil palm midrib greatly affect the quality

of the resulting microcrystalline cellulose. The purpose of this study was to compare

the microcrystalline cellulose produced from alpha cellulose extracted from oil palm

midrib by two different methods. Fisrt delignization method uses sodium hydroxide.

Second method uses a mixture of nitric acid and sodium nitrite, and continued with

sodium hydroxide and sodium sulfite. Microcrystalline cellulose obtained by both

method was characterized separately, including organoleptic test, color reagents

test, dissolution test, pH test and determination of functional groups by FTIR. The

results was compared with microcrystalline cellulose which has been available on

the market. The characterization results showed that microcrystalline cellulose

obtained by first method has the most similar characteristics to the microcrystalline

cellulose available in the market.


48




Characterization of Microcrystalline from Pineapple

Leaf (Ananas comosus L. Merr)

S Yuliasmi1, Nerdy1, A Husnita1

1Department of Pharmaceutical Chemistry, Faculty of Pharmacy,

University of Sumatera Utara, Medan, Sumatera Utara, Indonesia, 20155


Abstract. Microcrystalline cellulose (MCC) is a cellulose derivative obtained by

treating the alpha cellulose contained in fibrous plants using acid solutions. Types

of natural fibers from plants obtained from the pineapple leaf. Chemical composition

of pineapple leaf showed that the content of cellulose is high at 69.5 to 71.5%. This

research was conducted through the isolation of alpha cellulose with a NaOH

solution, then hydrolyze with HCl solution, then crushed mechanically to obtained

microcrystalline cellulose. Characterization of microcrystalline cellulose include,

organoleptic test, loss of drying test, color identification reagents test, water

solubility test, starch test, pH test, analysis and identification of functional groups

microcrystalline cellulose by spectrophotometry Fourier Transform Infrared (FT-

IR). Microcrystalline cellulose obtained is fine powder, white, odorless, pH 6.1, loss

of drying 3.3%, giving a positive result in a identification test with iodized zinc

chloride, solubility in water 0.16% and there is no starch in microcrystalline

cellulose. The results of the analysis of functional groups microcrystalline cellulose

obtained from pineapple leaf compared with Avicel using FT-IR showed similar

wavenumber in the functional groups region and the fingerprint region. It was

concluded that the pineapple leaf contain alpha cellulose and can be

made into microcrystalline cellulose.



49



Preliminary Study of Water Repellent Properties of Red

Pepper Seed Oil

F Kurniawan*, K A Madurani and N C Wahyulis

Laboratory of Instrumentation and Analytical Sciences, Chemistry

Department, Faculty of Mathematic and Natural Sciences, Institut Teknologi

Sepuluh Nopember, Arief Rahman Hakim, Surabaya 60111, Indonesia.


Abstract. The water repellent properties of red pepper seed oil (capsicol) have been

studied. The oil was coated on the glass surface by spray technique. Water repellent

properties were performed by measuring the contact angle of water droplets. The

measurement was conducted by varying the drying time of the oil coating at room

temperature. The optimum contact angle of the droplets on the glass with capsicol

coating is 46.77°, which can be achieved in 30 min of drying time. It also obtained

the smallest diameter of the droplets (0.47 cm). The longer drying time decrease the

contact angles and increases the diameter. The results were compared with the bare

glass and commercial water repellent. The contact angle of the droplets on the glass

surface with capsicol coating is higher than bare glass, but lower than glass with

commercial water repellent coating. It means that capsicol has the water repellent

properties.

50


Chemistry Presentation Code: -


Decomposition Behavior of Curcumin during Solar

Irradiation when Contact with Inorganic Particles

A B D Nandiyanto1,*, A S Wiryani1, A Rusli1, A Purnamasari1 and A G

Abdullah2



Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia


Abstract. Curcumin is one of materials which have been widely used in medicine,

Asian cuisine, and traditional cosmetic. Therefore, understanding the stability of

curcumin has been widely studied. The purpose of this study was to investigate the

stability of curcumin solution against solar irradiation when making contact with

inorganic material. As a model for the inorganic material, titanium dioxide (TiO2)

was used. In the experimental method, the curcumin solution was irradiated using a

solar irradiation. To confirm the stability of curcumin when contact with inorganic

material, we added TiO2 microparticles with different concentrations. The results

showed that the concentration of curcumin decreased during solar irradiation. The

less concentration of curcumin affected the more decomposition rate obtained. The

decomposition rate was increased greatly when TiO2 was added, in which the more

TiO2 concentration added allowed the faster decomposition rate. Based on the result,

we conclude that the curcumin is relatively stable as long as using higher

concentration of curcumin and is no inorganic material existed. Then, the

decomposition can be minimized by avoiding contact with inorganic material.


51



Extraction of Curcumin Pigment from Indonesian Local

Turmeric with Its Infrared Spectra and Thermal

Decomposition Properties

A B D Nandiyanto1, A S Wiryani1, A Rusli1, A Purnamasari1, A G

Abdullah2, Ana3 and I Widiaty3



Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia 3Departemen Pendidikan Kesejahteraan Keluarga, Universitas Pendidikan

Indonesia, Jl. Dr. Setiabudi 229, Bandung 40154, Indonesia


Abstract. Curcumin is one of the pigments which is used as a spice in Asian cuisine,

traditional cosmetic, and medicine. Therefore, process for getting curcumin has

been widely studied. Here, the purpose of this study was to demonstrate the simple

method for extracting curcumin from Indonesian local turmeric and investigate the

infrared spectra and thermal decomposition properties. In the experimental

procedure, the washed turmeric was dissolved into an ethanol solution, and then put

into a rotary evaporator to enrich curcumin concentration. The result showed that

the present method is effective to isolate curcumin compound from Indonesian local

turmeric. Since the process is very simple, this method can be used for home

industrial application. Further, understanding the thermal decomposition properties

of curcumin give information, specifically relating to the selection of treatment

when curcumin must face the thermal-related process.

52




Solution Concentration and Flow Rate of Fe3+-modified

Porphyrin (Red Blood Model) on Giant

Magnetoresistance (GMR) Sensor Efficiency

A Aminudin1*, D H Tjahyono2, Suprijadi3, M Djamal4 , R Zaen5 and A

B D Nandiyanto5

1Departemen Fisika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no

229, Bandung 40154, Jawa Barat, Indonesia 2Sekolah Farmasi, Institut Teknologi Bandung, Jl. Ganesha No.10,

Bandung 40132, Jawa Barat, Indonesia 3Departemen Fisika, Institut Teknologi Bandung, Jl. Ganesha No.10,

Bandung 40132, Jawa Barat, Indonesia 4Departemen Fisika, Institut Teknologi Sumatera, Jl.Terusan Jenderal

Ryacudu, Lampung Selatan 35365, Indonesia 5Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no



Abstract. Red blood has been of great interest for scientists since it relates to

human’ and living creature’s life sustainability. One of the important compounds in

red blood is porphyrin. Here, the purpose of this study was to develop a method for

detecting porphyrin concentration using the assistance of giant magnetoresistance.

In short of the method, we added Fe3+ solution to the porphyrin, and the mixed

solution was introduced to the magnetic field. Next, the magnetized solution was

introduced to the magnetic sensor to indicate the existence of porphyrin in the

solution. To confirm the effectiveness of our method in detecting porphyrin, we

varied the flow rate and concentration of Fe3+-modified porphyrin solution. The

result showed that the more concentration and the slower flow rate affected the

higher sensitivity gained. Since this developed method is simple but effective for

detecting porphyrin concentration, we believe that further development of this

method will be benefit for many applications, specifically relating to the medical

uses.


53



Preparation of Potassium-Posphate-embedded

Amorphous Silicate Material from Rice Straw Waste

A B D Nandiyanto1*, N Permatasari1, T N Sucahya1, S T Purwanti1, H

S H Munawaroh1, A G Abdullah2 and L Hasanah3



Indonesia, Jl. Dr. Setiabudi no 229, Bandung 40154, Jawa Barat, Indonesia 3Departemen Fisika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no



Abstract. Rice straw is one of the agricultural wastes that increased every year.

Since rice straw ash contains 74.6% of silica, this material is potentially used to

produce silica. Thus, the purpose of this study was to investigate the possibility

process for generating potassium-phosphate-embedded amorphous silica material.

To extract silica from rice straw waste, we used potassium hydroxide solution

followed by an acid precipitation treatment. Based on the experimental results, the

proposed method is potential to be used as an alternative technique for getting silica

material. In addition, the method has a positive impact on the environment because

this is potential for reducing the amount of rice straw waste, whereas at the same

time this provides an added value to the rice straw waste itself.

54


Civil Engineering Presentation Code: B-03-08


Experimental Study on The Impact of Rain Water

Puddle of Asphalt Pavement Structure

Firdaus Chairuddin Doctor Civil Engineering from Hasanuddin University at duty to Atma Jaya

Makassar University. 0411-871038 Makassar.


Abstract. This research was the study case of road Dr. Wahidin Sudiro Husodo’s

Segment, Makassar. Makassar City is a city area of eastern Indonesia, but they often

found the road flooded during the rainy season, as a result there are few roads

damaged by stagnant water, such as Dr. Wahidin Sudiro Husodo street. Sta.0 + 900

- Sta. 1 + 200 there is a pattern of damage stripping, raveling, pothole. Rainfall data

from the Meteorological agency of Makassar notes starting from January to

December of 2010 and January of 2011 until mid-August rainfall reached 368 mm

/ mo. Sampling from roads Dr. Wahidin Sudiro Husodo Makassar (Sta.0 + 900 - Sta.

1 + 200) by means of cores using the tool coredrill. Next is conducting laboratory

tests starting from cutting the sample, weighing, soaking, accumulation of wet,

drying surface, decomposition of the sample, manufacture briquette. Further test

Density (SNI 03-2828 - 1992) Stability test, testing asphalt content (SNI 03-3640 -

1994), testing Aggregate gradation (SNI 03-1968 - 1990). The number of samples

taken there were 12 points. Sampling starts from the left side and then on the right

road sample of 12 points. on stability testing using the Marshall test only produced

four pieces of sample A1, A2, B1 and A1 B2.The result of gradation on the sample

can be seen from the graph that% larger sieve contained in No. ½ "which has a value

of 73.37. The results of the samples graded B1 of grading results can also be seen

from the graph that% larger sieve contained in No. ½ "which has a value of 87.35%.

In sample B2 can also be seen from the graph that% larger sieve contained in No. ½

"which has a value of 87.53.



55



The Estimation Of Compaction Parameter Values

Based On Soil Properties Values Stabilized With

Portland Cement

Adina S Lubis1*, Z A Muis1 and M I Pasaribu1

1 Civil Engineering Department, Faculty of Engineering, University of

Sumatera Utara, Medan 20154, Indonesia


Abstract. The strength and durability of pavement construction is highly dependent

on the properties and subgrade bearing capacity. This then led to the idea of the

selection methods to estimate the density of the soil with the proper implementation

of the system, fast and economical. This study aims to estimate the compaction

parameter value namely the maximum dry unit weight (γd max) and optimum moisture

content (wopt) of the soil properties value that stabilized with Portland Cement. Tests

conducted in the laboratory of soil mechanics to determine the index properties

(fines and liquid limit) and Standard Compaction Test. Soil samples that have

Plasticity Index (PI) between 0-15% then mixed with Portland Cement (PC) with

variations of 2%, 4%, 6%, 8% and 10%, each 10 samples. The results showed that

the maximum dry unit weight (γd max) and wopt has a significant relationship with

percent fines, liquid limit and the percentation of cement. Equation for the estimated

maximum dry unit weight (γd max) = 1.782 - 0.011*LL + 0,000*F + 0.006*PS with

R2 = 0.915 and the estimated optimum moisture content (wopt) = 3.441 + 0.594*LL

+ 0,025*F + 0,024*PS with R2 = 0.726.

Keywords: compaction, maximum dry unit weight, optimum moisture content,

liquid limit, fines percent, stabilitation, soil-cement.

56




Determination of Route Delivery in the Logistic Service

Provider (LSP) by Reviewing the Performance of Street

in The City of Malang

Imma Widyawati Agustin1 and Yeni Sumantri2

1Lecture at Department of Urban Regional Planning, Engineering Faculty,

Brawijaya University, Jl. MT. Haryono 167, Malang City, East Java, 65145,

Indonesia


Abstract. Malang as the National Activity Centre (PKN) led to increased economic

growth and increased the demand for goods both primary and tertiary goods.

Demand of goods which is increasing and also diversing will certainly have an

impact on the process of transportation of goods involving a freight

forwarder.Shipping of goods is part of the supply chain, which handles the flow of

goods, distribution and delivery service or commonly called the courier.Fulfilling

the request of goods would require Logistics Service Provider (LSP) that distribute

goods from point of origin to destination. Delays in the distribution of goods will

slow(DOWN) economic growth in Malang, therefore focused studies on the

movement of goods which includes the election of the delivery route is needed.The

purpose of this study is to get the delivery route for LSP by identifying its patterns

of freight transport movement and to analyze the network performance of the road

that is passed by freight transportation.Data collection techniques in this research

are interviews, questionnaires and observations of moving-car and traffic counting

to get the volume of traffic.The study used road’s performance analysis to get the

level of service (LOS) of roads which are used by the freight transportation of LSP

and Dijkstra's algorithm analysis to determine the delivery routes.The results

showed that the Level of Service of the roads (LOS) is at the level of D to F which

indicates that the chosen roads experience instability of traffic flow even reach a

critical condition. Therefore by considering delivery routes selection both of

existing condition and analysis result as well as the condition of the road network in

Malang, then given alternative is by deliverying goods on the chosen routes but not

at peak hour.

Keywords: Freight-Transportation, Malang-City, Delivery, Logistics-Service-

Provider, Routes



57



The Utilization of Volcanic Ash and High Rusk Ash as

Material Stabilization in Clay by Unconfined

Compression Test (UCT) and California Bearing Ratio

(CBR)

Ika Puji Hastuty1, Irwan Suranta Sembiring2, and Muhammad Iqbal

Abidin3

1Departement of Civil Engineering, University of Sumatera Utara, Jl.

Almamater Kampus USU Medan 20155 2Departement of Civil Engineering, University of Sumatera Utara, Jl.


Almamater Kampus USU Medan 20155


Abstract. Clay is a type of soil which needs to be stabilized. The method often used

is stabilization by adding additive to the soil. In this study, the additive materials

that we use are volcanic ash from Mount Sinabung and rice husk ash. The selection

of these materials as additive is based on their silica content. Volcanic ash has a high

silica content that is equal to 82.04%, and rice husk ash also has a high silica content

which is equal to 89.8%. This study aims to improve the physical and mechanical

properties of soil. Clay used or this study was taken from Patumbak, Deli Serdang,

the volcanic ash was taken from Mount Sinabung, and the rice husk ash was

produced from the bricks burning outcome in Stabat Langkat. The tests for soil are

water content test, specific gravity test, Atterberg limits test, sieve analysis test,

compaction test, CBR (California Bearing Ratio) laboratory test, and Unconfined

Compression Test (UCT). The test results show that the value of liquid limit in

addition of volcanic ash and rice hush decreased gradually. So does the plasticity

index, the value decreased from 26.33% to 5.31% on the addition of 2.5% volcanic

ash + 22.5% rice husk ash. While on the mechanical properties, the optimal CBR

value obtained in the addition of 75% soil + 25% volcanic ash is 15.48%, and the

addition of 25% volcanic ash causes soil increases the compressive strength from

1.38 kg/cm2 to 2.23 kg/cm2. Unconfined Compression Test result shows that the

compressive Strength (qu) of original soil is 1.38 kg/cm² value, meanwhile the

Compressive Strength (qu) of remoulded soil is 0.58 kg/cm2.


58




Sinabung Volcanic Ash Utilization as the Additive for

Paving Block Quality A and B

Irwan Suranta Sembiring1, and Ika Puji Hastuty2

1Departement of Civil Engineering, University of Sumatera Utara, Jl.


Almamater Kampus USU Medan 20155


Abstract. Paving block is one of the building materials used as the top layer of the

road structure besides asphalt and concrete. Paving block is made of mixed materials

such as portland cement or other adhesive materials, water and aggregate. In this

research, the material used as the additive of cement and concrete is volcanic ash

from Mount Sinabung, it is based on the results of the material testing, Sinabung ash

contains 74.3% silica (SiO2). The purpose of this research aims to analyze the

behavior of the paving blocks quality A and B with and without a mixture of

Sinabung ash, to analyze the workability of fresh concrete using Sinabung ash as an

additive in concrete, and to compare the test results of paving blocks with and

without using Sinabung ash. The samples that we made consist of four variations of

the concrete mix to experiment a mixture of normal sample without additive,

samples which are mixed with the addition of Sinabung ash 5%, 10%, 15%, 20%

and 25% of the volume of concrete/m3. Each variation consists of 10 samples of the

concrete with 28 days curing time period. We will do the compressive strength and

water absorption test to the samples to determine whether the samples are in

accordance with the type needed. According to the test result, paving blocks with

Sinabung ash and curing time reach quality A at 0%, 5% and 10% mixture with the

compressive strength of each 50.14 MPa, 46.20 MPa and 1.49Mpa, and reach

quality B at 15%, 20 %,25% mixture with curing time and 0%, 5%, 10%, 15%, 20%

and 25% mixture without curing time. According to the absorption values we got

from the test which are 6.66%, 6.73%, 6.88%, 7.03%, 7.09% and 7.16%, the entire

sample have average absorption exceeding SNI standardization which is above 6%

and reach quality C. Based on compressive strength and absorption data obtained

Sinabung ash can’t fully replace cement as the binder because of the low CaO

content.



59



Characteristic of Modal Choice Preference between Bus

and Train from Medan to Kuala Namu Airport

M Surbakti1,2 and C Bombongan3

1Civil Engineering Department, University of Sumatera Utara, Jl. dr. Mansur

Kampus USU Medan 20155. 2Sustainable Transportation Research Center, Faculty of Engineering

University of Sumatera Utara, Jl. Almamater Kampus USU Medan 20155 3Civil Engineering Post Graduate Program, Faculty of Engineering

University of Sumatera Utara, Jl. Almamater Kampus USU Medan 20155


Abstract. Kuala Namu International Airport started operating on July 25, 2013 to

replace Polonia International Airport followed by the operation of airport train and

bus as a public transport service mode. The purpose of the study was to define the

characteristic of airport train and bus users how they choose bothof the

transportation modes and to test the sensitivity, if one of the transportation attribute

are changes. The data obtained through stated preference method was modelled by

using binary logit and probit models. From these two models, the probability of

using airport train and bus transportation can be known. The result of analysis

showed the equations of the function of utility difference of airport train and bus:

UKAB-BB = 2,606 – 0,028X1 – 0,007X2 – 0,014X3 – 0,016X4 + 0,044X5,where X1,

(cost attribute), X2 (time attribute), X3 (headway attribute), X4 (access attribute) and

X5 (service attribute).


60




Study of Road Maintenance Program Priority, Using the

Analytical Network Process

MSurbakti1,2 and Kriswan CHarefa3

1Civil Engineering Department, University of Sumatera Utara, Jl. dr. Mansur

Kampus USU Medan 20155. 2Sustainable Transportation Research Center, Faculty of Engineering

University of Sumatera Utara, Jl. Almamater Kampus USU Medan 20155 3Civil Engineering Post Graduate Program, Faculty of Engineering

University of Sumatera Utara, Jl. Almamater Kampus USU Medan 20155


Abstract. On the implementation of the maintenance roads works in Nias, there has

been no standardized system, in terms of work priority order. The purpose of this

study was to determine the priority of strategic road order, with Analytical Network

Process (ANP), which is based on technical criteria as the basis for determining the

priority policy for development or maintenance of roads in Nias. As the results,

several criteria based on stake holder judgment, which can be used as the basis for

maintenance priority program of road, respectivelyare: accessibility 30.87%;

regional connectivity 25.33%; movement needs 17.90%, regional strategic

development purposes 13,49%, and road condition 12:42 %



61



Comparison of Seismic Responses for Reinforced

Concrete Buildings with Mass and Stiffness

Irregularities Using Pushover and Nonlinear Time

History Analysis

Daniel Rumbi Teruna1 1Lecturer, Department of Civil Engineering, University of Sumatera Utara


Abstract. Pushover analysis or also known as nonlinear static procedures (NSP)

have been recognized in recent years for practical evaluation of seismic demands

and for structural design by estimating a structural building capacities and

deformation demands. By comparing these demands and capacities at the

performance level interest, the seismic performance of a building can be evaluated.

However, the accuracy of NSP for assessment irregular building is not yet a fully

satisfactory solution, since irregularities of a building influence the dynamic

responses of the building. The objective of the study presented herein is to

understand the nonlinear behaviour of six story RC building with mass

irregularities at different floors and stiffness irregularity at first story (soft story)

using NSP. For the purpose of comparison on the performance level obtained with

NSP, nonlinear time history analysis (THA) were also performed under ground

motion excitation with compatible to response spectra design. Finally, formation

plastic hinges and their progressive development from elastic level to collapse

prevention are presented and discussed.


62


Computer and Communication Engineering Presentation Code: B-08-08


UDP-Lite Enhancement through Checksum Protection

Suherman, Habibi Abdurrahman, Opim S. Sitompul, Naemah

Mubarakah

Electrical Engineering Department, University of Sumatera Utara


Abstract. UDP drops packet when checksum bits in header does not match the

checksum bits calculated from the receive data. UDP-Lite improves UDP by using

partial checksum coverage. However, checksum error in both UDP and UDP-Lite

headers is potentially leading to wrong decision in dropping part(s) of packet. This

article proposes protocol to avoid the problem by using Forward Error Correction

(FEC) code to protect checksum bits. The evaluation results show that the number

of the received bytes increases up to 0.3% compared to UDP-Lite, which leads to 3

dB increment of the received image quality.



63



Designing Rules for Accounting Transaction

Identification based on Indonesian NLP

Irvan Iswandi1, Iping Supriana Suwardi2, Nur Ulfa Maulidevi3

School of Electrical Engineering and Informatics

Institut Teknologi Bandung

Bandung, Indonesia

E-mail: 1 [email protected], 2 [email protected], 3

[email protected]

Abstract. Recording accounting transactions carried out by the evidence of the

transactions. It can be invoices, receipts, letters of intent, electricity bill, telephone

bill, etc. In this paper, we proposed design of rules to identify the entities located on

the sales invoice. There are some entities identified in a sales invoice, namely:

invoice date, company name, invoice number, product id, product name, quantity

and total price. Identification this entities using named entity recognition method.

The entities generated from the rules used as a basis for automation process of data

input into the accounting system.




64




A Review of Big Graph Mining Research

Imelda Atastina1, Benhard Sitohang2, G.A.Putri Saptawati3, Veronica

S.Moertini4

1,2,3 School of Electrical Engineering and Informatics, Bandung Institute of

Technology 4 Informatics Department, Parahyangan Chatolic University


Abstract. “Big Graph Mining” is a continuously developing research that was

started in 2009 until now. After 7 years, there are many researches that put this topic

as the main concern. However, there is no mapping or summary concerning the

important issues and solutions to explain this topic. This paper contains a summary

of researches that have been conducted since 2009. The result is grouped based on

the algorithms, built system and also preprocess techniques that have been

developed. Based on survey, there are 11 algorithms and 6 distributed systems to

analyse the Big Graph have been improved. While improved pre-process algorithm

only covers: sampling and compression technique. These improving algorithms are

usually aimed to frequent sub graphs discovery, whereas slightly those of is aimed

to cluster Big Graph, and there is no algorithm to classify Big Graph. As a

conclusion of this survey, there is a need for more researches to be conducted to

improve a comprehensive Graph Mining System, especially for very big Graph.



65



Reducing the Conflict Factors Strategies in Question

Answering System

Wiwin Suwarningsih1,2, Ayu Purwarianti1, Iping Supriana1 1School of Electronic Engineering and Informatics, Institute Technology

Bandung, Indonesia. Jl. Ganesa No. 10 Bandung, Indonesia 2Research Center for Informatics, Indonesian Institute of Science. Jl. Cisitu

No 21 Sangkuriang Bandung, Indonesia.


Abstract. A rule-based system is prone to conflict as new knowledge every time

will emerge and indirectly must sign in to the knowledge base that is used by the

system. A conflict occurred between the rules in the knowledge base can lead to the

errors of reasoning or reasoning circulation. Therefore, when added, the new rules

will lead to conflict with other rules, and the only rules that really can be added to

the knowledge base. From these conditions, this paper aims to propose a conflict

resolution strategy for a medical debriefing system by analyzing scenarios based

upon the runtime to improve the efficiency and reliability of systems.


66




Comparative Study on the Different Testing Techniques

in Tree Classification for Detecting the Learning

Motivation

Christina Juliane1, Arry A. Arman2, Husni S. Sastramihardja3, Iping

Supriana4 1,2,3,4 School of Electrical Engineering and Informatics

Bandung Institute of Technology

Bandung, Indonesia

E-mail:[email protected] 2,3,4[arman|husni|iping]@stei.ac.id

Abstract. Having motivation to learn is a successful requirement in a learning

process, and needs to be maintained properly. This study aims to measure learning

motivation, especially in the process of electronic learning (e-learning). Here, data

mining approach was chosen as a research method. For the testing process, the

accuracy comparative study on the different testing techniques was conducted,

involving Cross Validation and Percentage Split. The best accuracy was generated

by J48 algorithm with a percentage split technique reaching at 92.19 %. This study

provided an overview on how to detect the presence of learning motivation in the

context of e-learning. It is expected to be good contribution for education, and to

warn the teachers for whom they have to provide motivation.


67



Game Multimedia in Numeracy Learning for

Elementary School Students

D Rohendi1, N Sumarna2, H Sutarno3

1 Mechanical Engineering Education Departement of UPI, Jl. Dr. Setiabudhi

no. 229 Bandung 2Mechanical Engineering Education Department of UPI 3Computer Education Department of UPI


Abstract. Numeracy is one of the basic skills for elementary students to understand

further concepts of mathematics. However teaching numeracy is still using

recitation that can overload student’s memory and make them reluctant to learn

mathematics, so an innovative way by using multimedia to attract student interest in

numeracy is needed. Therefore, the purpose of this study are: 1) to develop

numeracy learning multimedia for elementary school students; and 2) to find out

whether the implementation of numeracy learning multimedia can improve the

students numeracy skills, and how is the response of elementary school students by

using multimedia in learning numeracy? The results showed that multimedia can

improve students’ numeracy skill which is quit medium and the student response by

using multimedia in numeracy learning are good.

Keywords: multimedia, numeracy skills, elementary students, response,

implementation.

68




Design of Vivaldi Micro strip Antenna for Ultra-

Wideband Radar Applications

M. Yoga Perdana1), Tommi Hariyadi1), Yuyu Wahyu2)

1) Department of Electrical Engineering Education, Indonesia University of

Education

2) Research Center for Electronics and Telecommunications, Indonesian

Institutes of Sciences


Abstract. The development of radar technology has an important role in several

fields such as aviation, civil engineering, geology, and medicine. One of the

essential components of the radar system is the antenna. The bandwidth can specify

the resolution of the radar. The wider the bandwidth, the higher the resolution of

radar. For Ground penetrating radar (GPR) or medical applications need with a

high-resolution radar so it needs an antenna with a wide bandwidth. In addition, for

the radar application is required antenna with directional radiation pattern. So, we

need an antenna with wide bandwidth and directional radiation pattern. One of

antenna that has meet with these characteristics is Vivaldi antenna. In previous

research, has designed several Vivaldi micro strip antenna for ultra-wideband radar

applications which has a working frequency of 3.1 to 10.7 GHz. However, these

studies there is still a shortage of one of them is the radiation pattern from lowest to

highest frequency radiation pattern is not uniform in the sense that not all

directional. Besides the antenna material used is also not easily available and the

price is not cheap. This paper will discuss the design of a Vivaldi micro strip antenna

which has a wide bandwidth with directional radiation pattern works on 3.1 to 10.7

GHz and using cheaper substrate. Substrates used for Vivaldi micro strip antenna

Vivaldi is FR4 with a dielectric constant of 4.3 and a thickness of 1.6 mm. Based

on the simulation results we obtained that the antenna design has frequency range

3.1-10.7 GHz for return loss less than -10 dB with a directional radiation pattern.

This antenna gain is 4.8 to 8 dBi with the largest dimension is 50 mm x 40 mm.



69

Computer Science Presentation Code: A-01-08


Satellite Image Edge Detection for Population

Distribution Pattern Identification Using Level set with

Morphological Filtering Process

Harsiti1, T A Munandar2, A Suhendar 1, A G Abdullah 3, D Rohendi 4 1 Information System Dept.,Information Technology Faculty, Universitas

Serang Raya, Banten – Indonesia 2Informatics Engineering Dept.,Information Technology Faculty,

Universitas Serang Raya, Banten – Indonesia 3Electrical and Electronic Engineering Dept. - Faculty of Technology and

Vocational Education, Universitas Pendidikan Indonesia, Bandung,

Indonesia

4 Computer Scince Education Dept. – Math. and Naturan Science Faculty,

Universitas Pendidikan Indonesia, Bandung, Indonesia


Abstract. Population distribution pattern is directly related with economic gap of a

region. Analysis of population distribution pattern is usually performed by studying

statistical data on population. This study aimed to analyze population distribution

pattern using image analysis concept, i.e. using satellite images. Level set and

morphological image filtering methods were used to analyze images to see

distribution pattern. The research result showed that Levelset and morphological

image filtering could remove a lot of noises in analysis result images and form

object edge contours very clearly. The detected object contours were used as

references to recognize population distribution pattern based on satellite image

analysis. The pattern made based on the research result didn’t show optimal result

because Level set performed image segmentation based on the contours of the

analyzed objects. Other segmentation methods should be combined with it to

produce clearer population distribution pattern.


70




Implementation of ELECTRE Method in Determining

the Priority of a Sustainable Tourist Attraction

Development in Gorontalo Regency

S Nawir1, R Manda2, T Rahman3 and A U Fatmah4

1Department of Earth Science and Engineering, Faculty of Mathematics and

Natural Sciences, Universitas Negeri Gorontalo, Indonesia 23Department of Informatics Engineering, Faculty of Engineering,

Universitas Negeri Gorontalo, Indonesia 4Department of Indonesian Language and Literature Education, Faculty of

Language and Culture, Universitas Negeri Gorontalo, Indonesia

E-mail: [email protected], [email protected], [email protected], [email protected]

Abstract. Prioritizing the development of a tourist attraction in Gorontalo regency

is necessary, due to the limited budget allocation and the spread of tourist attractions

that make it difficult to managed and supervised. Decision support system (DSS)

that implementing Multi-Attribute Decision Making (MADM) such as Elimination

Et Choix Traduisant La Realite (ELECTRE) method is required to assist the local

government to make decision what kind of tourist attraction is the priority to

developed. The purpose of this research is to help the local government in determine

the priority of a sustainable tourist attraction development in Gorontalo regency.

ELECTRE method is used to assess and rank the tourist attractions based on the

advantages and disadvantages trough paired comparison on the same criteria. The

process of collecting data is through interviews and literature review. The

calculations of ELECTRE method obtained that the Reksonegoro Tourism Village

or Soekarno Landing Site Museum is the most potential tourist attraction to be a

priority for sustainable development. The result is provided sensible and

straightforward rankings and, importantly, the decision makers more objective in

determining the priority of a sustainable tourist attractions development.



71



Geographical Information System Model for Potential

Mines Data Management Presentation in Kabupaten

Gorontalo

D Roviana1, A Tajuddin2 and S Edi3 123Department of Informatics Engineering, Faculty of Engineering, Universitas

Negeri Gorontalo, Indonesia

Email: [email protected], [email protected], [email protected]

Abstract. Mining potential in Indonesian is very abundant, ranging from Sabang to

Marauke. Kabupaten Gorontalo is one of many places in Indonesia that have

different types of minerals and natural resources that can be found in every district.

The abundant of mining potential must be balanced with good management and ease

of getting information by investors. The current issue is, (1) ways of presenting

data/information about potential mines area is still manually (the maps that already

capture from satellite image, then printed and attached to information board in the

office) it caused the difficulties of getting information; (2) the high cost of maps

printing; (3) the difficulties of regency leader (bupati) to obtain information for

strategic decision making about mining potential. The goal of this research is to

build a model of Geographical Information System that could provide data

management of potential mines, so that the investors could easily get information

according to their needs. To achieve that goal Research and Development method is

used. The result of this research, is a model of Geographical Information System

that implemented in an application to presenting data management of mines.




72




Artificial Neural Network for Monthly Rainfall Rate

Prediction

Hindriyanto Dwi Purnomo, Kristoko Dwi Hartomo, Sri Yulianto Joko

Prasetyo

Department of Information Technology, Satya Wacana Christian University

Diponegoro St, 52-60, Salatiga, Central Java, Indonesia

E-mail: [email protected], [email protected],

[email protected]

Abstract. Rainfall rate forecasting plays an important role in various human

activities. Rainfall forecasting is a challenging task due to the uncertainty of natural

phenomena. In this paper, two neural network models are proposed for monthly

rainfall rate forecasting. The performance of the proposed model is assesses based

on monthly rainfall rate in Ampel, Boyolali, from 2001-2013. The experiment

results show that the accuracy of the first model is much better than the accuracy of

the second model. Its average accuracy is just above 98%, while the accuracy of the

second model is approximately 75%. In additional, both models tend to perform

better when the fluctuation of rainfall is low.

Keywords: artificial neural network, monthly rainfall rate, forecasting





73



Decision Support Systems for Performance and

Evaluation of Teachers in General-English Course by

Using the SMARTER and TOPSIS Methods

Rasim, Eka Fitrajaya Rahman, Nur Fitriany Dewi, and Lala

SeptemRiza

Department of Computer Science Education, Universitas Pendidikan

Indonesia, Indonesia


Abstract. This research aims to implement Decision Support System (DSS) for

choosing General English program teacher using Smarter and Topsis methods. The

SMARTER method is used for determining weight of each criterion, where the

TOPSIS method is used for calculate teacher ranks. The data used consist of some

criteria and lecturer scores for each parameter. Both data are obtained from UPI

Language Center Customer Satisfaction Report. Priority of criteria was decided

based on questionnaire response from General English Program students. On

accuracy aspect, the research shows that the combination of SMARTER and

TOPSIS methods has 76% error rate. This research also shows that SMARTER and

TOPSIS method has 90% stability. Based on questionnaire, 4 from 5 Balai Bahasa

UPI's management choose teacher's rank from SMARTER and TOPSIS methods

rather than manual.


74




Hierarchical Regional Disparities and Potential Sector

Identification Using Modified Agglomerative Clustering

T A Munandar1,4, Azhari2, A Mushdholifah2, L Arsyad3 1 Doctoral Student of Computer Sc. and Electronic Dept., Math. And Natural

Science Faculty, Universitas Gadjah Mada, Yogyakarta, INDONESIA 2Computer Sc. and Electronic Dept., Math. And Natural Science Faculty,

Universitas Gadjah Mada, Yogyakarta, INDONESIA 3Economics Department, Faculty of Economics and Business, Universitas

Gadjah Mada, Yogyakarta, INDONESIA 4 Informatics Eng., Dept., Information Technology Faculty, Universitas

Serang Raya


Abstract. Disparities in regional development methods are commonly identified using the

Klassen Typology and Location Quotient. Both methods typically use the data on the gross

regional domestic product (GRDP) sectors of a particular region. The Klassen approach can

identify regional disparities by classifying the GRDP sector data into four classes, namely

Quadrants I, II, III, and IV. Each quadrant indicates a certain level of regional disparities based on the GRDP sector value of the said region. Meanwhile, the Location Quotient (LQ)

is usually used to identify potential sectors in a particular region so as to determine which

sectors are potential and which ones are not potential. LQ classifies each sector into three

classes namely, the basic sector, the non-basic sector with a competitive advantage, and the

non-basic sector which can only meet its own necessities. Both Klassen Typology and LQ are

unable to visualize the relationship of achievements in the development clearly of each region

and sector. This research aimed to develop a new approach to the identification of disparities

in regional development in the form of hierarchical clustering. The method of Hierarchical Agglomerative Clustering (HAC) was employed as the basis of the hierarchical clustering

model for identifying disparities in regional development. Modifications were made to HAC

using the Klassen Typology and LQ. Then, HAC which had been modified using the Klassen

Typology was called MHACK while HAC which had been modified using LQ was called

MACLoQ. Both algorithms can be used to identify regional disparities (MHACK) and

potential sectors (MACLoQ), respectively, in the form of hierarchical clusters. Based on the

MHACK in 31 regencies in Central Java Province, it is identified that 3 regencies (Demak,

Jepara, and Magelang City) fall into the category of developed and rapidly-growing regions, while the other 28 regencies fall into the category of developed but depressed regions. Results

of the MACLoQ implementation suggest that there is only 1 regency which falls into the

basic-sector category (Banyumas), while the other regencies fall into the non-basic non-

competitive sector category



75



Distributed Rendering on Volunteered Mobile

Resources

J T Tarigan1, I Jaya2, S M Hardi3

Faculty of Computer Science and Information Technology,

University of Sumatera Utara

Email: [email protected], [email protected], [email protected]

Abstract. Generally, rendering an image based on a 3D scene requires a high

amount of computation. Thus, rendering can be a time-consuming process. Using

multiple hardware to collaboratively perform a 3D rendering is one of the most

commonly used option to reduce the time. However, the cost to access dedicated

hardware can be expensive. We present Collaborative Rendering, an application to

perform a ray-tracing-based-rendering on volunteered mobile devices. This

application allows mobile device owners to donate their processing power to

perform the rendering. Our objective is to design, implement, and evaluate

Collaborative Rendering as a solution to perform rendering process in multiple

volunteered mobile devices.

Keywords: distributed rendering, volunteer computing, mobile devices, ray-tracing


76




Optimizing Libraries' Content Findability Using Simple

Object Access Protocol (SOAP) with Multi-tier

Architecture

Agus Lahinta1), Ikhfan Haris2) and Tajuddin Abdillah1) 1) Informatics Engineering Department, Engineering Faculty, State

University of Gorontalo, Gorontalo 2)Department of Educational Management, Faculty of Education, State

University of Gorontalo, Gorontalo


Abstract. The aim of this paper is to describe a developed application of Simple

Object Access Protocol (SOAP) as a model for improving libraries' digital content

findability on the library web. The study applies XML text-based protocol tools in

the collection of data about libraries' visibility performance in the search resultsof

the book. Model from the integrated Web Service Document Language (WSDL)

and Universal Description, Discovery and Integration (UDDI) are applied to analyse

SOAP as element within the system. The results showed that the developed

application of SOAP with multi-tier architecture can help people simply access the

website in the library server Gorontalo Province and support access to digital

collections, subscription databases, and library catalogs in each library in Regency

or City in Gorontalo Province.

Keywords: Resources Library, SOAP Protocol, Multi-tier Architecture



77



GEODATA: Information System Based on Geospatial

for Early Warning Tracking and Analysis Agricultural

Plant Diseases in Central Java

Sri Yulianto J.P, Yohanes Hendro Agus, Christine Dewi, Bistok

Hasiholan Simanjuntak, Kristoko Dwi Hartomo

Study Centre SIMITRO - Informatic Engineering Faculty & Agriculture &

Business Faculty, Satya Wacana Christian University, Salatiga, Indonesia


Abstract. The Government of Indonesia is currently faced with the problems of food, especially rice. It needs in large numbers that have to import from neighboring countries.

Actually, the Indonesian government has the ability to produce rice to meet national needs

but is still faced with the problem of pest attack rice annually increasing extent. One of the

factors is that geographically Indonesia located on the migration path of world rice insect pests (called BPH or Brown Plant hoppers) (Nilaparvata lugens Stal.) It leads endemic status

annually. One proposed strategy to be applied is to use an early warning system based on a

specific region of the main pest population. The proposed information system called

GEODATA. GEODATA is Geospatial Outbreak of Disease Tracking and Analysis. The system works using a library ESSA (Exponential Smoothing - Spatial Autocorrelation)

developed in previous studies in Satya Wacana Christian University. GEODATA built to

meet the qualifications required surveillance device by BMKG (Indonesian Agency of

Meteorology, Climatology and Geophysics’ Central Java Provinces), BPTPH (Indonesian Agency of Plant Protection and Horticulture) Central Java Provinces, BKP-KP District

Boyolali, Central Java, (Indonesian Agency of Food Security and Agriculture Field

Supervisor, District Boyolali, Central Java Provinces) and farmer groups. GIS GEODATA

meets the needs of surveillance devices that include: (1) mapping of the disease, (2) analysis of the dynamics of the disease, and (3) prediction of attacks / disease outbreaks in a particular

region. GIS GEODATA is currently under implementation in the laboratory field

observations of plant pest in Central Java province, Indonesia.

Keywords: GIS, Exponential Smoothing, Spatial Autocorrelation, Brown Plant hoppers


78




The Usage Evaluation of Official Computer Terms in

Bahasa Indonesia in Indonesian Government Official

Websites

A Amalia 1, D Gunawan2, M S Lydia1 and C Charlie2

1 Department of Computer Science, Faculty of Computer Science and

Information Technology, University of Sumatera Utara, Medan, Indonesia 2 Department of Technology Information Faculty of Computer Science and

Information Technology, University of Sumatera Utara, Medan, Indonesia


Abstract. According to Undang-Undang Dasar Republik Indonesia 1945 Pasal 36,

Bahasa Indonesia is a National Language of Indonesia. It means Bahasa Indonesia

must be used as an official language in all levels ranging from government to

education as well as in development of science and technology. The Government

of Republic of Indonesia as the highest and formal authority must use official

Bahasa Indonesia in their activities including in their official websites. Therefore,

the government issued a regulation instruction called Instruksi Presiden (Inpres)

No. 2 Tahun 2001 to govern the usage of official computer terms in Bahasa

Indonesia. The purpose of this research is to evaluate the usage of official

computer terms in Bahasa Indonesia compared to the computer terms in English.

The data are obtained from the government official websites in Indonesia. The

method consists of data gathering, template detection, string extraction and data

analysis. The evaluation of official computer terms in Bahasa Indonesia falls into

three categories, such as good, moderate and poor. The number of websites in good

category is 281 websites, the moderate category is 512 websites and the poor

category is 290 websites. The authorized institution may use this result as

additional information to evaluate the implementation of official information

technology terms in Bahasa Indonesia.



79



Recognition of Roasted Coffee Bean Levels Using Image

Processing and Neural Network

T H Nasution1, U Andayani2

1Department of Electrical Engineering, University of Sumatera Utara,

Medan, Indonesia 2Department of Information Technology, University of Sumatera Utara,

Medan, Indonesia


Abstract. The coffee beans roast levels have some characteristics. However, some

people cannot recognize the coffee beans roast level. In this research, we propose to

design a method to recognize the coffee beans roast level of images digital by

processing the image and classifying with back propagation neural network. The

steps consist of how to collect the images data with image acquisition, pre-

processing, feature extraction using Gray Level Co-occurrence Matrix (GLCM)

method and finally normalization of data extraction using decimal scaling features.

The values of decimal scaling features become an input of classifying in back

propagation neural network. We use the method of back propagation to recognize

the coffee beans roast levels. The results showed that the proposed method is able

to identify the coffee roasts beans level with an accuracy of 97.5%.


80




KINECTATION (Kinect for Presentation): Control

Presentation with Interactive Board and Record

Presentation with Live Capture Tools

Rhio Sutoyo, Herriyandi, Tri Fennia Lesmana, Edy Susanto Bina Nusantara University, Jl. K. H. Syahdan No. 9, Kemanggisan /

Palmerah, Jakarta Barat, 11480, Indonesia


Abstract. Presentation is one the most common activity performed in various fields

of work (e.g. lecturer, employee, manager, etc.). The purpose of presentation is to

demonstrate or introduce presenters’ idea to the attendees. Within the given time

and specific place, presenters have to transfer their knowledge and leave great

impression for their audience. Generally, presenters use several handy tools such as

mouse, presenter, and webcam to help them to navigate their slides. Nevertheless,

some of these tools have several constraints and limitations such as not portable and

does not support multimedia. In this research, we develop an application that assist

presenters to control their presentation materials by using Microsoft KINECT. In

this research, we manipulate colour image, image depth, and the skeleton of the

presenters captured by the KINECT. Then, we show the post-process image results

into the projector screen. The KINECT has more useful than other tools because it

supports video and audio recording. Moreover, it also able to capture presenters’

movement that can be used as an input to interact and manipulate the content (i.e.

by touching the projection wall). Not only this application provides an alternative

in controlling presentation activity, but it also makes the presentation more efficient

and attractive.



81



The Design of Lexical Database for Indonesian

Language

D Gunawan1*and A Amalia2

1Department of Information Technology, Faculty of Computer Science and

Information Technology University of Sumatera Utara, Jl. dr. Mansur No. 9

Kampus USU Medan 20155 2Department of Computer Science, Faculty of Computer Science and

Information Technology University of Sumatera Utara, Jl. dr. Mansur No.

9Kampus USU Medan 20155


Abstract. Kamus Besar Bahasa Indonesia (KBBI), an official dictionary for

Indonesian language, provides lists of words with their meaning. The online version

can be accessed via Internet network. Another online dictionary is Kateglo. KBBI

online and Kateglo only provides an interface for human. A machine cannot retrieve

data from the dictionary easily without using advanced techniques. Whereas, lexical

of words is required in research or application development which related to natural

language processing, text mining, information retrieval or sentiment analysis. To

address this requirement, we need to build a lexical database which provides well-

defined structured information about words. A well-known lexical database is

WordNet, which provides the relation among words in English. This paper proposes

the design of a lexical database for Indonesian language based on the combination

of KBBI 4th edition, Kateglo and WordNet structure. Knowledge representation by

utilizing semantic networks depict the relation among words and provide the new

structure of lexical database for Indonesian language. The result of this design can

be used as the foundation to build the lexical database for Indonesian language.


82




Implementation of Digital Signature Using AES and

RSA Algorithms as a Security in Disposition System of

Letter

Herbert Siregar, Enjun Junaeti, Try Hayatno

Departemen Penddikan Imu Komputer, Fakultas Pendidikan Matematika

dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia


Abstract. Activities correspondence is often used by agencies or companies, so

that institutions or companies set up a special division to handle issues related to

the letter management. Most of the distribution of letters using electronic media,

then the letter should be kept confidential in order to avoid things that are not

desirable. Techniques that can be done to meet the security aspect is by using

cryptography or by giving a digital signature. The addition of asymmetric and

symmetric algorithms, i.e.RSA and AES algorithms, on the digital signature had

been done in this study to maintain data security. The RSA algorithm was used

during the process of giving digital signature, while the AES algorithm was used

during the process of encoding a message that will be sent to the receiver. Based

on the research can be concluded that the additions of AES and RSA algorithms

on the digital signature meet four objectives of cryptography: Secrecy, Data

Integrity, Authentication and Non-repudiation. Keywords: Mail, Digital

Signature, Cryptography, AES and RSA algorithms.



83



Multi-Pivot Quicksort: An Experiment with Single,

Dual, Triple, Quad, and Penta-Pivot Quicksort

Algorithms in Python

M A Budiman1, E M Zamzami1, and D Rachmawati1

1Departemen Ilmu Komputer, Fakultas Ilmu Komputer dan Teknologi

Informasi, Universitas Sumatera Utara, Jl. Universitas No. 9-A, Kampus

USU, Medan 20155, Indonesia


[email protected]

Abstract. Dual-pivot quicksort, which was proposed by Yaroslavsky, has been

experimentally proven to be more efficient than the classical single-pivot quicksort

under the Java Virtual Machine [6]. Moreover, Kushagara, López-Ortiz, and Munro

[4] has shown that triple-pivot quicksort runs 7-8% faster than dual-pivot quicksort

in C, mutatis mutandis. In this research, we implement and experiment with single,

dual, triple, quad, and penta-pivot quicksort algorithms in Python. Our experimental

results are as follows.Firstly, the quicksort with single pivot is the slowest among

the five variants. Secondly, at least until five (penta) pivots are being used, it is

proven that the more pivots are used in a quicksort algorithm, the faster its

performance becomes. Thirdly, the increase of speed resulted by adding more pivots

tends to decrease gradually.




84




On Using Goldbach G0 Codes and Even-Rodeh Codes

for text Compression

M A Budiman1and D Rachmawati1

1Departemen Ilmu Komputer, Fakultas Ilmu Komputer dan Teknologi

Informasi, Universitas Sumatera Utara, Jl. Universitas No. 9-A, Kampus

USU, Medan 20155, Indonesia

E-mail: [email protected]@usu.ac.id

Abstract. This research aims to study the efficiency of two variants of variable-

length codes (i.e., Goldbach G0 codes and Even-Rodeh codes) in compressing texts.

The parameters being examined are the ratio of compression, the space savings, and

the bit rate. As a benchmark, all of the original (uncompressed) texts are assumed to

be encoded in American Standard Codes for Information Interchange (ASCII).

Several texts, including those derived from some corpora (the artificial corpus, the

Calgary corpus, the Canterbury corpus, the large corpus, and the miscellaneous

corpus) are tested in the experiment. The overall result shows that the Even-

Rodehcodes are consistently more efficient to compress texts than the

unoptimzedGoldbach G0 codes.




85

Earth Science Presentation Code: AS-06-01

Manuscript Code: A-05-02

Analysis of Tourism Impact on Sand Dune Landscape

Structure and Economic Aspect of the Surrounding

Community

Isna Pujiastuti1, Adhera Sukmawijaya1, Pratita Hana Kirana1, Hasti Nur

Handayani1, M. Dhiya Ulhaq1, Nuraini Sabilussalami1, Hanindha

Pradipa1, Nuringtyas Yogi Jurnawan1

1Geografi Lingkungan, Fakultas Geografi, Universitas Gadjah Mada

Abstract. The sand dunes which located in Parangtritis, is a unique eolian landform

because it’s the only type of landform that exist in Southeast Asia. This unique

characteristic makes the sand dune become a potential spot for tourism. The tourism

activity that exist inflict an impact to the sand dune’s ecological aspect. Data was

collected by using aerial photograph, interview, field observation, and literacy

study. Descriptive analysis is used for the qualitative data and spatio-temporal

analysis is used to determine the change that occur on the specific landform. Patch

Mosaic model is used to determine the change in the landscape structure. The study

shows that the tourism activity have a positive impact on the social and economic

aspect of the society around the sand dune. Raise in the society’s income and their

developing economic sector shows the positive impact of sand dune to the economic

aspect. Impact on social aspect indicated by the increase of male teenager

productivity in tourism management activity. On the other side, ecological aspect

of the sand dune receive the negative impact. The landscape matrix has decline over

time. In 2011, sand dune become the landscape matrix with an area of 46,64 Ha, but

in 2014 the landscape matrix change into agriculture field with an area of 27,82 Ha

and the area of sand dune decline to 19,81 Ha. This decline is caused by the raising

tourism activity. The area of the sand dune continue to decline in 2016 as the area

of the sand dune reach the number of 14,00 Ha and bare land become the landscape

matrix with an area of 25,78 Ha. The application of zoning regulation according to

landform processes and the implementation of geoscience maritime park tourism

concept is expected to become the base of management so that the sand dune

function can be maintain.

Keywords: Sand Dune, Parangtritis, Tourism, Patch Mosaic

86


Earth Science Presentation Code: A-05-03


Groundwater Quality Assessment in Jakarta Capital

Region for the Safe Drinking Water

Muhammad Fadly1, Tantowi Eko Prayogi, S.T. 2, Febriwan Mohamad,

S.Si., M.Si.3, Dio Yasril Zulfaris1, Dr.Ir. Mochamad Wachyudi Memed,

M.T. 2, Arief Daryanto,S.T. 2, Faizal Abdillah, S.T. 2, Enda Mora

Nasution, S.T. 2, Janner Rahmat Sudianto S.T. 2, Bagus Giarto, S.T. 2,

Firman Maliki, S.T., M.T. 2

1Undergraduate Program of Geological Sciences, Faculty of Geology,

Universitas Padjadjaran, Jatinangor KM 21, Sumedang 45363, Indonesia 2 Resource Center of Groundwater and Environmental Geology, Geological

Agency, Ministry of Energy and Mineral Resources 3Faculty of Geology, Universitas Padjadjaran, Jatinangor KM 21, Sumedang

40xxx, Indonesia


Abstract. This study aims to determine the quality of Jakarta Capital Region’s

groundwater and its recommendation based on the standards set by the Indonesian

government especially The Health Minister Decree No. 907 / Menkes / SK / VII /

2002 about The Drinking Water Monitoring. The study activity uses the data that

carried out by Geological Agency, Ministry of Energy and Mineral Resources,

Indonesia from March to April 2015. The methods used in this study are direct

observation and hydrogeological measurement to measure physics and chemistry

parameters. The results show that most places in the study area have the low quality

of groundwater which is below the drinking water quality standards according to the

government. However, at the unconfined aquifer (depth of 0-40 meters), the certain

areas such as in the Kramat Jati, Halim Perdana Kusuma, Tongkol-Pademangan,

and Duren sawit are still relatively safe for consumption as drinking water. In

addition, the confined aquifer (depth> 40 meters) such as in the area of Cibubur,

Pasar Rebo, and Jagakarsa are considered safe for consumption as drinking water.

This study is expected to be used as a benchmark for researchers, especially

academics in the region in order to maintain the sustainable groundwater resources in the area.

Keywords: Aquifer, Drinking water, Groundwater, Hydrogeology, Jakarta


87



Estimating of Gonystiluss bancanus Growing Stock in

Indonesia (Case study: Riau and Central Kalimantan)

Samsuri1, I N S Jaya2*), and T Partomihardjo3

1Lecturer, Forestry Faculty – University of Sumatera Utara, Jalan Dr Mansur

Medan, 20135 2) Professor, Forestry Faculty – Bogor Agriculture University, Darmaga,

Bogor, 6000 3). Professor, Indonesia Research Agency, Indonesia, Jalan Juanda Bogor,

6000

20155

E-mail: [email protected], [email protected]

Abstract. Gonystylus bancanus is protected species because it is included in list of

critically endangered plant species that is heading to be extinct. Export banned

Gonystylus bancanus log trigger illegal logging caused ramin’s demand is high.

This study aimed to estimate Gonystylus bancanus growing stock in Indonesia.

Time series of satellite image was used to identify land use change. Spatial analysis

by overlaying of land cover and peatland map found the potential habitat of

Gonystylus bancanus. Cluster sampling method was applied to predict growing

stock recently year. The study found that growing stock in peat swamp forest in

Central Kalimantan (Sebangau National Park area) tend to be elevated. It is also

occurred in production forest of peat swamp that is harvested, especially in

concession area of Diamond Raya Timber Ltd that also tend to elevate. The most

increasing of growing stock is caused by ingrowth). Growing of Gonystylus

bancanus seedling is hardly occurred. It is caused by youngest seedling

characteristics that are need a covering. Gonystylus bancanus (growing stock is not

be spread evenly overall growing stages. This study also found that Gonystylus

bancanus growing stock ranging between 4.2 m3/ha to 15.2 m3/ha. The growing

stock of Gonystylus bancanus is between 3.3% to 5.4% of all species in peat swamp

forest. Average of Gonystylus bancanus increment about 0.63 m3/ha/year.

Average growing stock of all species is 3.1 ~ 20.5 m3/ha/year).


88




Pb Distribution in Groundwater and Its Impact to the

Health of Indonesia’s Capital Citizen

Dio Yasril Zulfaris1, Tantowi Eko Prayogi2, Boy Yoseph CSS Syah Alam3,

Muhammad Fadly1, Mochamad Wachyudi Memed2, Arief Daryanto2, Faisal

Abdillah2, Enda Mora Nasution2, Janner Rahmat Sudianto2, Bagus Giarto 2,

Firman Maliki2 , Nunuy Nuraeni4

1Undergraduate Program of Geological Sciences, Faculty of Geology, Universitas

Padjadjaran, Jatinangor KM 21, Sumedang 45363, Indonesia 2 Resource Center of Groundwater and Environmental Geology, Geological Agency,

Ministry of Energy and Mineral Resources 3 Faculty of Geology, Universitas Padjadjaran, Jatinangor KM 21, Sumedang 45363,

Indonesia 4Undergraduate Program of Medical Education, Faculty of Medical, Universitas

Padjadjaran, Jatinangor KM 21, Sumedang 45363, Indonesia


Abstract. This study aims to measure the Pb distribution in Jakarta Capital Region’s

groundwater and its recommendation based on the standards of The Health Minister Decree No. 492 / MENKES / PES / IV / 2010 about The Drinking Water Monitoring. The study also

aims to analyze the impact of Pb intoxication in the human body. The study activity uses the

field data that carried out by Geological Agency, Ministry of Energy and Mineral Resources,

Indonesia from March to April 2015. The methods used in this study are direct observation and hydrogeological measurement to measure physics and chemistry parameters. The result

showed that the Levels of heavy metals Pb (Lead) in the west – southwest of Jakarta

Groundwater basin (Ciputat, Pamulang, Ciledug, Kebayoran, Pondok Cina, Pondok Jagung,

and Serpong) are beyond the quality standards that has been suggested by the ministry of health . The government set the standard in 0.1 mg/L while these areas have the Pb content

of up to 0.654 mg/L. In addition, Pb anomalies also occur in Muara Angke, Kamal Muara,

and Kapuk Region of North Jakarta which has a very High level of Pb which is about 1.09

mg / Liter. Pb intoxication in humans can affect the reproductive system, mutagenicity, carcinogenicity, and have bad effects to the nervous system of infants and children.

Keywords: Aquifer, Drinking water, Groundwater, Hydrogeology, Jakarta, Pb


89



Characterization of Minerals Deposit Patimpeng Bone

Regency, South Sulawesi through Petrographic

I E Putri N D Alwi and Subaer 1Laboratorium Fisika Material, Jurusasan Fisika, Universitas Negeri

Makassar, Indonesia Jl. Daeng Tata Raya, Makassar, Indonesia


[email protected]

Abstract. A research on the characterization of minerals from the Patimpeng

District Bone Regency, South Sulawesi using petrographic analysis has been

conducted. The aims of this study was to identify the minerals deposited in

Patimpeng District. Specimens of rocks are grouped into 13 sections. Characterization of samples was conducted in microstructure laboratory,

Department of Physics Universitas Negeri Makassar using Scanning Electron

Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS) and X-ray

Diffraction (XRD). Based on XRD examinations on 13 samples, 9 samples

containing albite mineral. The details of XRD analysis, namely; a) PAT_01

containing titanite 16%, albite 65%, hematite 2.9%, periclase 3.4%, and quartz

14%; b) PAT_04 containing thomsonite 18.1%, albite 62%, magnetite 18%,

anatase 1.18%, and lime 1.36%; c) PAT_05 containing tetranatrolite 31%, albite

30%, diopside 26%, and magnetite13%; d) PAT_06 containing indialite 8.5%,

albite 58%, clinochlore 23%, anatase 5.4%, and magnetite 4.7%; e) PAT_08

containing Thomsonite 42%, albite, 35%, anatase 2.2%, magnetite 7% and

magnesium 14%; f) PAT_10 containing Clinochlore 31%, Sodium 5.2%, albite

55%, anatase 3.1%, hematite 1.75%, and magnetite 3.5%; g) PAT_11 containing

clinochlore 19.8%, albite 55%, quartz 21.7%, anatase 1.76%, and magnetite

1.9%; h) PAT_12 containg cronstedtite 2,20%, albite 95.3%, anatase 0.88%, rutile

1,18% and magnetite 0.4%; i) PAT_13 containing ferrohornblende 5.8%,

clinochlore 20.9%, periclase 11.9%, and albite 61%. Sample PAT_12 showed that

weight percentage (wt%) of albite was dominant than other minerals. The results

of petrographic analysis using X-ray mapping for the sample PAT_12 showed that

the entire surface is covered with Si which overlap with Al, Fe, Ca, Na, Mg, and

Sb.

mailto:E-mail:%[email protected]



90


Electrical Engineering Presentation Code: B-04-05


Contingency Analysis of Electric Power Systems Sub-

System 150 Kv West Java Area II

Tasma Sucita1, Yadi Mulyadi2 1,2 Department of Electrical Engineering Education

Indonesia University of Education

e-mail : 1 [email protected], 2 [email protected] Abstract. Main generation area II technically served several plants that Jatiluhur,

Saguling and Cirata. The backbone of the generation (slack bus) held by two units

supplied by IBT 500/150 kV with a power capacity of each IBT is 500 MVA. One

sample is a sub-system supplier Cirata has 13 transmission line connecting the

substation 8 (GI) and has a total of 17 150/20 kV transformer with a capacity of 930

MVA, while the existing generation units at 150 kV Cirata subsystem is PLTPb

Patuha with a power of 55 MW. Given the large power capacity with the strategic and

vital functions of the sub-systems of 150 kV Cirata requires maximum control and

optimization so that the distribution of electricity in West Java can be properly

maintained. System Reliability of the power system must be maintained in order to

supply power from the generator to the consumer to keep going well. In this study,

the disorder will be analyzed is the contingency (N-1), a discharge of one of the

channels on the system. Then analyzes the current and voltage changes to prepare for

system improvements. Repairs are done when the contingency is to release the load

(load shedding). Reliability was measured after load shedding in this study is to

measure the quality of the voltage on the load side. At the time of the contingency (N-

1), a decline below the voltage value SPLN on some rails GI, including rail Cigereleng

(124.8 kV to 136.8 kV), rail Lagadar (125.4 kV to 137.1 kV), rail Padalarang (126.1

kV to 137.5 kV), North Bandung rail (125.5kV be 137.3 kV) and rail Cibabat (125.6

kV to 137.2 kV).

Keywords: Contingency, Sub-system 150 kV, load shedding




91



Numerical Simulation Bidirectional Chaotic

Synchronization of Spiegel-Moore Circuit and Its

Application for Secure Communication

W. S. Mada Sanjaya1,4, Dyah Anggraeni1,4, Rena Denya1,2, Nanang

Ismail3 1 Department of Physics, Universitas Islam Negeri Sunan Gunung Djati,

Bandung, Indonesia 2 Department of Physics Education, Universitas Islam Negeri Sunan Gunung

Djati, Bandung, Indonesia 3 Department of Electrical Engineering, Universitas Islam Negeri Sunan

Gunung Djati, Bandung, Indonesia 4 Bolabot Techno Robotic Institute, CV. Sanjaya Star Group, Bandung,

Indonesia


Abstract. Spiegel-Moore is a dynamical chaotic system which shows irregular

variability in the luminosity of stars. In this paper present the performed the design

and numerical simulation of the synchronization Spiegel-Moore circuit and applied

to security system for communication. The initial study in this paper is to analyze

the eigenvalue structures, various attractors, Bifurcation diagram, and Lyapunov

exponent analysis. We have studied the dynamic behavior of the system in the case

of the bidirectional coupling via a linear resistor. Both experimental and simulation

results have shown that chaotic synchronization is possible. Finally, the

effectiveness of the bidirectional coupling scheme between two identical Spiegel-

Moore circuits in a secure communication system is presented in details. Integration

of theoretical electronic circuit, the numerical simulation by using MATLAB®, as

well as the implementation of circuit simulations by using Multisim® has been

performed in this study.



92




Contingency Analysis of South Bandung Electric Power

System

Dini Fauziah1 and Yadi Mulyadi2 1 Sekolah Tinggi Elektro dan Informatika, Institut Teknologi Bandung, Jl.

Ganesha No. 10 Bandung 40132Indonesia 2Fakultas Pendidikan Teknologi dan Kejuruan, Universitas Pendidikan

Indonesia, Jl. Dr.Setiabudhi No. 207 Bandung 40154 Indonesia


Abstract. Electric power transmission system must operate reliably and

continuously, but in fact there are many disturbance that affect the reliability and

stability of the power system. This study aims to determine the weak elements of

power system when release of components occur. This study uses simulation with

Newton Raphson power flow method for contingency analysis. The study is located

in South Bandung electric power system with voltage of 150 kV. In this study, the

object of contingency analysis is IBT-II 500/150 KV at peak periods load in 2013

to evaluate the system reliability when release of the Inter bus Transformer (IBT).

Selection of the componentis based that IBT is the most important component in the

power supply that should be maintain continuously. The results of the study and

analysis show that in the event of contingency almost all bus voltage has decreased

below the limit allowable voltage and IBT-I get overloaded, then the maneuveris

performed according to the procedures of specified load. The results of this study

can beuse as a reference for the electric power operating system which has

conditions similar to the simulated cases.

Keywords: Load Flow, Newton Raphson method, Contingency Analysis



93



Schedulling Economical Thermal Power Plant 500 kV

Java-Bali System using Lagrange Multiplier

Nike Sartika1, Ade Gafar Abdullah2, Dadang Lukman Hakim3

1 First Author, Department of Electrical Engineering Education FPTK UPI,

Indonesia 2 Second Author, Department of Electrical Engineering Education FPTK

UPI, Indonesia 3 Third Author, Department of Electrical Engineering Education FPTK UPI,

Indonesia

E-mail: [email protected]; [email protected]; [email protected]

Abstract. The highest cost of electricity generation operation is fuel cost. Therefore,

it is necessary to optimize the thermal generator scheduling. The present study

aimed at obtaining the schedule and load sharing of the electric power generation,

in order to gain the minimum fuel cost, with regard to inequality and equality

constraints. The data tested was the thermal generation system of 500 kV Java-Bali

using daily loads. This study employed a lagrange multiplier method to perform the

economic scheduling. This method is one of mathematical techniques commonly

used to solve economic dispatch problems. The results of the optimation of lagrange

multiplier were compared with the real condition in the field. Based on the

optimation results, it was found that the lagrange multiplier method is more

economical than the real condition of system.

Keywords: fuel cost, economic dispatch, thermal power plant, lagrange multiplier




94


Electrical Engineering Presentation Code: A-01-01


Optimize Short Term Load Forcasting Anomalous

Based Feed Forward Backpropagation

Yadi Mulyadi, Ade Gafar Abdullah, Kartika Ainur Rohmah

Electrical Power Systems Research Group

Departement of Electrical Engineering Education


Jl. Dr. Setiabudi No. 207 Bandung, Indonesia 40154


Abstract. This paper contains the Short-Term Load Forecasting (STLF) using

artificial neural network especially feed forward backpropagation algorithm which

is particularly optimized in order to getting a reduced error value result. Electrical

load forecasting target is a holiday that hasn’t identical pattern and different from

weekdays pattern, in other words the pattern of holiday load is an anomalous. Under

these conditions, the level of forecasting accuracy will be decrease. Hence we need

a method that capable to reducing error value in anomalous load forecasting.

Learning process of algorithm is supervised or controlled, then some parameters are

arranged before performing computation process. Momentum constanta value is set

at 0.8 which serve as a reference because it has the greatest converge tendency.

Learning rate selection is made up to 2 decimal digits. In addition, hidden layer and

input component are tested in several variation of number also. The test result leads

to the conclusion that the number of hidden layer impact on the forecasting accuracy

and test duration determined by the number of iterations when performing input data

until it reaches the maximum of a parameter value.

Keywords: Short term load forecasting; feed forward backpropagation; anomalous

electric load; error.



95



Design and Experiment of Electrooculogram (EOG)

System and Its Application to Control Mobile Robot

W.S. Mada Sanjaya1,2, Dyah Anggraeni1,2, Rizki Multajam1,2, M. Nurul

Subkhi1 and Imamal Muttaqien1

1 Department of Physics, Universitas Islam Negeri Sunan Gunung Djati,

Bandung, Indonesia 2Bolabot Techno Robotic Institute, CV. Sanjaya Star Group, Bandung,

Indonesia


Abstract. In this paper, we design and investigate a biological signal detection of

eye movements (Electrooculogram). To detect a signal of Electrooculogram (EOG)

used 4 instrument amplifier process; differential instrumentation amplifier, High

Pass Filter (HPF) with3 stage filters, Low Pass Filter (LPF) with 3 stage filters and

Level Shifter circuit. The total of amplifying is 1000 times of gain, with frequency

range 0.5-30Hz. IC OP-Amp OP07 was used for all amplifying process. EOG signal

will be read as analog input for Arduino microprocessor, and will interfaced with

serial communication to PC Monitor using Processing® software. The result of this

research show a differences value of eye movements. Differences signal of EOG

have been applied to navigation control of the mobile robot. In this research, all

communication process using Bluetooth HC-05.



96




Principal Component Analysis and Cluster Analysis in

Profile of Electrical System

Iswan, Iwa Garniwa MK

Electrical Engineering Department, Universitas Indonesia


Abstract. This paper propose to present approach for profile of electrical system,

presented approach is combination algorithm, namely principal component analysis

(PCA) and cluster analysis. Based on relevant data of gross domestic regional

product and electric power and energy use. This profile is set up to show the

condition of electrical system of the region that will be used as a policy in the

electrical system of spatial development in the future. This paper consider 24 region

in South Sulawesi province as profile center points and use principal component

analysis (PCA) to assess the regional profile for development. Cluster analysis is

used to group these region into few cluster according to the new variable be

produced PCA. The general planning of electrical system of South Sulawesi

province can provide support for policy making of electrical system development.

The future research can be added several variable into existing variable.



97



Optimal Anomalous Short Term Load Orecasting Based

Feed Forward Backpropagation Algorithm

Kartika Ainur Rohmah, Ade Gafar Abdullah, Yadi Mulyadi

Program Studi Teknik Elektro S1

FPTK Universitas Pendidikan Indonesia

Jl. Dr. Setiabudhi No. 207 Bandung


Abstract. This paper contains the Short-Term Load Forecasting (STLF) using

artificial neural network especially feed forward backpropagation algorithm which

is particularly optimized in order to getting a reduced error value result. Electrical

load forecasting target is a holiday that hasn’t identical pattern and different from

weekdays pattern, in other words the pattern of holiday load is an anomalous. Under

these conditions, the level of forecasting accuracy will be decrease. Hence we need

a method that capable to reducing error value in anomalous load forecasting.

Learning process of algorithm is supervised or controlled, then some parameters are

arranged before performing computation process. Momentum constanta value is set

at 0.8 which serve as a reference because it has the greatest converge tendency.

Learning rate selection is made up to 2 decimal digits. In addition, hidden layer and

input component are tested in several variation of number also. The test result leads

to the conclusion that the number of hidden layer impact on the forecasting accuracy

and test duration determined by the number of iterations when performing input data

until it reaches the maximum of a parameter value.

Keywords: Short term load forecasting; feed forward backpropagation; anomalous electric

load; error


98




Maximum Potential of the Car Cabin Temperature in

the Outdoor Parking Conditions as a Source of Energy

in Thermoelectric Generator

Aris Sunawar, Iwa Garniwa

Teknik Elektro, Universitas Indonesia, Indonesia


Abstract. Cars using the principle of converting heat energy into mechanical

energy, but a lot of wasted heat energy not entirely transformed into mechanical

energy, studies have been conducted that converts the heat energy into electrical

energy using the principle thermoelectrically. However, there are many other

energies that can be harnessed from the car, such as when the car is parked in the

sun or driving in the heat of the sun, the temperature in the cabin can reach 80

degrees Celsius. The heat can be harmful to humans and the children immediately

into the vehicle, as well as for the goods stored in the cabin if it contains toxins can

evaporate because of the heat and dangerous. The danger can be prevented by

reducing the heat in the cabin and transform into other forms of energy such as

electricity. By providing a temperature difference of 40 degrees on the cold side of

the module can be acquired electricity thermoelectrically up to 0.17W for one of its

module, if it is made a module block the energy produced is enough to lower the

temperature and charge batteries for further cooling. This study will use experiment

method to get the maximum drop in temperature in the car cabin.

Keywords: Hot temperatures, thermoelectrically, Generator, room temperature




99



The Impact of Influence Range Fuzzy Subtractive

Clustering Modification to Accuracy Anomalous Load

Forecasting

Firna Anindyaputri Respati, Ade Gafar Abdullah, Yadi Mulyadi

Program Studi Teknik Elektro, FPTK Universitas Pendidikan Indonesia, Jl.

Dr. Setiabudhi No. 207 Bandung


Abstract. Short term load forecasting (STLF) has important role for reliability and

economic operation of electrical power system. In this paper, fuzzy subtractive

clustering (FSC) method is used in STLF of electrical power system for special days

in anomalous load conditions. These anomalous loads occurring during national

holidays. This method is applied on dataset of Region 2 Java-Bali to forecast the

load demand on half-hour in national holidays (anomalous load). The proposed

methodology has been to decrease the forecasted error value. Finally, the result

shows that FSC implementation for STLF of regional load have more accuracy and

better outcomes.

Keywords: Short Term Load Forecasting, Anomalous Load, Fuzzy Subtractive

Clustering.


100




Voltage Generation of Three-Phase Double Sided

Internal Stator Axial Flux Permanent Magnet (AFPM)

Generator

I M W Kastawan1, Rusmana1 1Department of Energy Conversion Engineering, Politeknik Negeri

Bandung

Jalan Geger kalong Hilir, Ciwaruga 40012, Jawa Barat, Indonesia.


Abstract. This paper describes the development of a multidisc AFPM generator

type namely the double sided internal stator. This generator consists of one stator

disc with two surface sides placed in the middle between two rotor discs. 18

permanent magnet poles are placed in one rotor disc while 9 three-phase windings

with 1450 turns per-winding are placed in one surface side of the stator disc. The

laboratory test results show that three-phase sinusoidal voltage magnitude in range

of 79 – 150 V (phase to neutral) is generated for 219 – 402 rpm of rotor speed. In

its nominal speed i.e. 333 rpm, a 124.8 V, 50 Hz, three-phase sinusoidal voltage is

generated with only 1.6% THD in average and 0°,–124°,–240° phase angles.

Comparison with another type of multidisc AFPM generator namely the double

sided internal rotor shows that the developed AFPM generator can producean output

voltage that is almost 2.5 times higher. Nevertheless, both generators are able to

generate a relatively balance three-phase sinusoidal voltage with low THD value.

Keywords: AFPM generator, double sided internal stator, output voltage, three-

phase sinusoidal




101



Alternative Improving the Quality of Sub-Voltage

Transmission System Using Static Var Compensator

Hasbullah1, Yadi Mulyadi2 1,2Department of Electrical Engineering Education

FPTK Universitas Pendidikan Indonesia

Jl. Dr. Setiabudhi 229, Bandung 40154, Indonesia


Abstract. This study discusses the voltage profile improvement method in the

transmission sub-systems using one of the devices from Flexible Alternating

Current Transmission Systems (FACTS), by using a Static Var Compensator (SVC)

with the object focused on electric power system sub-systems in South Bandung

area and Ujung Berung. The aims of the study were to determine the voltage profile

sub-systems in South Bandung and Ujung Berung before and after installation of

SVC and also to determine the position and capacity of SVC in maintaining optimal

voltage profile transmission sub-system. The research method used the power flow

simulation from Newton-Raphson method with ETAP 7.0. The flow of reactive

power had been set so that the power loss on the network (losses) system obtained

a minimum. The results of the simulation and power flow analysis shows that the

average voltage profile and quality of installation SVC voltage sub-systems after the

optimal position and capacity to be better compared to prior to installation. By

minimizing the power loss on the network, the bus voltage profile can be maintained

in the values that are allowed, so the quality and continuity of operation in the power

system can be maintained.

Keywords: voltage profile, static var compensator, power losses, ETAP

102


Electronics Engineering Presentation Code: B-05-06


Fire Extinguisher Robot Using Ultrasonic Camera and

Wi-Fi Network Controlled with Android Smartphone

B Siregar1 , H A Purba1, S Efendi1, F Fahmi2

1 Faculty of Computer Science and Information Technology, University of

Sumatera Utara, Jl. Dr Mansur 9 Medan, Sumatera Utara, Indonesia 2 Electrical Engineering Department, University of Sumatera Utara, Jl. Dr

Mansur 9 Medan, Sumatera Utara, Indonesia


Abstract. Fire disasters can occur anytime and result in high losses. It is often that

fire fighters cannot access the source of fire due to the damage of building and very

high temperature, or even due to the presence of explosive materials. With such

constraints and high risk in the handling of the fire, a technological breakthrough

that can help fighting the fire is necessary. Our paper proposed the use of robots to

extinguish the fire that can be controlled from a specified distance in order to reduce

the risk. A fire extinguisher robot was assembled with the intention to extinguish

the fire by using a water pump as actuators. The robot movement was controlled

using Android smartphones via Wi-fi networks utilizing Wi-Fi module contained in

the robot. User commands were sent to the microcontroller on the robot and then

translated into robotic movement. We used ATMega8 as main microcontroller in

the robot. The robot was equipped with cameras and ultrasonic sensors. The camera

played role in giving feedback to user and in finding the source of fire. Ultrasonic

sensors were used to avoid collisions during movement. Feedback provided by

camera on the robot displayed on a screen of smartphone. In lab testing environment

the robot can move following the user command such as turn right, turn left, forward

and backward. The ultrasonic sensors worked well that the robot can be stopped at

a distance of less than 15 cm. In the fire test, the robot can perform the task properly

to extinguish the fire.



103

Electronics Engineering Presentation Code: B-05-07


Lowcost, Advanced, Integrated Microcontroller

Training Kit

Yoyo Somantri1, Iman Fushshilat2 1,2,Electrical Engineering Education Study Program, Faculty of Technology

and Vocational Education, Universitas Pendidikan Indonesia, Jalan Dr.

Setiabudhi No.207 Bandung

E-mail:[email protected], [email protected]

Abstract. This paper describes the design of an AVR microcontroller training kit

with a low cost and the additional feature of an integrated downloader. The main

components of this device include: Microcontroller, terminal, I/O keypad, push

button, LED, seven segment display, LCD, motor stepper, and sensors. The device

configuration results in low cost and ease of use; this device is suitable for

laboratories with limited funding. The device can also be used as a training kit for

the teaching and learning of microcontrollers.

Keywords: AVR microcontroller, downloader, and low cost.

104




Accelerometer Sensor Applications Early Warning

System Train Accidents Due to landslide at laboratory

scale.

Alimuddin1, Fatah Sulaiman2, Iqbal Hafizh Parinduri1, Rahman

Abdullah3, Teguh Firmansyah1, M.S Syarif4 1Department of Electrical Engineering, Faculty of Engineering UNTIRTA 2Department of Chemical Engineering, Faculty of Engineering UNTIRTA 3Department of Civil Engineering Faculty of Engineering UNTIRTA 4PT. Six Initiatives Jaya Mandiri 1Jln. Jenderal Sudirman Km 3 Cilegon, Kampus II Fakultas Teknik

UNTIRTA, Banten 4Jl.Jombang Raya Bintaro Jaya Sektor 9 Tangerang Selatan, Banten

Email: [email protected], [email protected], iqbal_qbal05@g

mail.com, [email protected],

[email protected], [email protected]

Abstract. Railway is a means of transportation that is favored by the people.

Accidents often occur in provinces Jawan West, Central Java, East Java and Banten.

The cause of the accident because of the location of heavy rain and soil in the

landslide. The purpose of this study was to design an early warning accelerometer

sensor on the railway line and test validation early warning accelerometer sensor on

the railway. Methods realtime create an early warning system for landslides that is

easy to use and effective in detecting landslide, using sensors and microcontrollers

accelometer Ardino. It can be concluded that the early warning system (early

warning system) works digitally, realtime, and effective response to the reading of

less than 1 second, the average error of the accelerometer sensor reading is 0 to

3.84%.

Keywords: accelerometer sensors, early warning, landslides, train









105

Environmental Engineering Presentation Code: B-06-04


Eco health System Dynamic Model as a Planning Tool

for the Reduction of Breeding Sites

1Titik Respati, 2Ardini Raksanagara, 2Henni Djuhaeni, 3Asep Sofyan, 4Aughya Shandriasti

1Faculty of Medicine, Bandung Islamic University, Jl. Tamansari 22 Bandung. 2Public Health

Department Padjadjaran University, Jl. Eijkman 36 Bandung. 3Environmental Engineering

Department Bandung Institute of Technology, Jl. Ganesha 10 Bandung 4Kummara, Jl. Sidomukti T1 Bandung


Abstract. Dengue is still one of major health problem in Indonesia. Dengue transmission is influenced

by dengue prevention and eradication program, community participation, housing environment and

climate. The complexity of the disease coupled with limited resources necessitates different approach for

prevention methods that include factors contribute to the transmission. One way to prevent the dengue

transmission is by reducing the mosquito’s breeding sites. Four factors suspected to influence breeding

sites are dengue prevention and eradication program, community participation, housing environment, and

weather condition. In order to have an effective program in reducing the breeding site it is needed to have

a model which can predict existence of the breeding sites while the four factors under study are controlled.

The objective of this study is to develop an Ecohealth model using system dynamic as a planning tool for

the reduction of breeding sites to prevent dengue transmission with regard to dengue prevention and

eradication program, community participation, housing environment, and weather condition. The

methodology is a mixed method study using sequential exploratory design. The study comprised of 3

stages: first a qualitative study to 14 respondents using in-depth interview and 6 respondents for focus

group discussion. The results from the first stage was used to develop entomology and household survey

questionnaires for second stage conducted in 2036 households across 12 sub districts in Bandung City.

Ecohealth system dynamic model was developed using data from first and second stages. Analyses used

are thematic analysis for qualitative data; spatial, generalized estimating equation (GEE) and structural

equation modeling for quantitative data; also average mean error (AME) and average variance error

(AVE) for dynamic system model validation. System dynamic model showed that the most effective

approach to eliminate breeding places was by ensuring the availability of basic sanitation for all houses.

Weather factors such as precipitation can be compensated with the eradication of breeding sites activities

which is conducted as scheduled and at the same time for the whole areas. Conclusion of this study is

that dengue prevention and eradication program, community participation, and housing environment

contributed to breeding places elimination influenced the existence of the breeding sites. The availability

of basic sanitation and breeding places eradication program done timely and collectively are the most

effective approach to eradicate breeding sites. Ecohealth dynamic system model can be used as a tool for

the planning of breeding sites eradication program to prevent disease transmissions at city level.

Keywords: System dynamic, Ecohealth, timely breeding sites eradication program, breeding sites, dengue

transmission.


106




Investigation of Indonesian Traditional Houses through

CFD Simulation

Suhendri1, Mochamad Donny Koerniawan2

1Asistant Lecturer, Department of Architecture, Institut Teknologi Bandung,

Ganesha 10, Bandung, Indonesia

2Lecturer, Department of Architecture, Institut Teknologi Bandung,

Ganesha 10, Bandung, Indonesia

Abstract. Modern buildings in Indonesia rely mostly on artificial lighting, heating,

cooling and ventilation. It means more energy is used to drive mechanical

appliances, and presumably not sustainable. Meanwhile modern buildings consume

much energy, traditional architectures are known as the source of knowledge for

sustainable, energy efficient and climate responsive design. Noticeably, one of the

differences between modern and traditional buildings in Indonesia is shown in their

strategy to provide thermal comfort to the user. Traditional buildings use natural

ventilation, but modern buildings use mechanical air conditioning. By focusing on

wind-driven ventilation, the study aims to investigate natural ventilation strategy of

Indonesian traditional house, and their potential improvement to be used in modern

Indonesian buildings. Three traditional houses are studied in this research,

representing west, central, and east Indonesia. The houses are Lampung traditional

house, Javanese traditional house, and Toraja traditional house. CFD simulation is

conducted to simulate wind-driven ventilation behaviour and the temperature of the

buildings. Concisely, the wind-natural ventilation of case study houses is potential

to provide thermal comfort inside the houses. However, the strategy still can be

optimized by adding some other passive design strategies: sunshading; vegetation;

or buildings arrangement in the traditional dwelling. Consideration about the roof’s

shape and windows position to the roof is important as well to create a uniform air

distribution.

Keywords: wind-driven ventilation, temperature, Indonesia traditional houses, CFD

simulation


107



Industrial Energy Efficiency Practices in Indonesia:

Lesson Learned From Astra Green Energy (AGen)

Award

Abdi Suryadinata Telaga1, Indra Dwi Hartanto2

1 Politeknik Manufaktur Astra,

Jl Gaya Motor Raya No.8 Sunter II, Jakarta, 14330, Indonesia 2ESR division PT Astra International,

Jl Gaya Motor Raya No.8 Sunter II, Jakarta, 14330, Indonesia


Abstract. Many countries have used award system to promote energy efficiency

practices in industry. The award system has been found to have significant impact

to increase energy conservation and sustainability adoption in companies. Astra

International (AI) as a holding company of more than 200 companies also organised

Astra green energy (AGen) award to all affiliated companies (AFFCO) in Astra

group. The event has been used to share energy efficiency best practices among

AFFCO in Astra group. AFFCOs of Astra International are among the biggest and

the leader in their industrial sectors Therefore, analyses from AFFO’s energy

efficiency case studies represents current practices in Indonesia industrial sectors.

Analyses are divided into industry, building, and renewable energy. The results

from analyses found that AFFCOs already aware of energy conservation and have

implemented projects to promote energy efficiency. However, the AFFCOs do not

optimally use monitoring data for energy reduction.



108




Analysis of Architectural Building Design Influences on

Fire Spread in Densely Urban Settlement using Cellular

Automata

Lily Tambunan1, Hafshah Salamah2, Nova Asriana3

Architecture Program. Bandung Institute of Technology. Ganesha 10,

Bandung, Indonesia

E-mail:[email protected], [email protected],[email protected]

Abstract. This study aims to determine the influence of architectural design on the

risk of fires pread in densely urban settlement area. Cellular Automata (CA) is used

to analyse the fire spread pattern, speed, and the extent of damage. Four cells

represent buildings, streets, and fields characteristic in the simulated area, as well as

their flammability level and fire spread capabilities. Two fire scenarios are used to

model the spread of fire: (1) fire origin in a building with concrete and wood material

majority, and (2) fire origin in building with wood material majority. Building

shape, building distance, road width, and total area of wall openings are considered

constant, while wind is ignored. The result shows that fire spread faster in the

building area with wood majority than with concrete majority. Significant amount

of combustible building material, absence of distance between buildings, narrow

streets and limited fields are factors which influence fire spread speed and pattern

as well as extent of damage when fire occurs in the densely urban settlement area.

Keywords: building design, fire spread, densely urban settlement, cellular automata




109



Biogas Technology on Supporting “Sustainable” Coffee

Farmers in North Sumatera Province, Indonesia

Nurzainah Ginting

Faculty of Agriculture, University of Sumatera Utara, Indonesia Kampus

USU Medan 20155


Abstract. A study has been conducted in an area of coffee plantation in Samosir

District, North Sumatera Province. The study was conducted in August until

September 2016. The objective of this studyis to investigate the benefits of using

biogas technology in supporting coffee farmers’ productivity to be sustainable, i.e.

methane as energy source for coffee roasting proceed instead of fired wood and

slurry as organic fertilizer. Coffee cherry causes environmental problem when it is

dumped openly, hence it is used to mix with buffalo feces in biodigesters to produce

methane and organic fertilizer.Fivebiodigesters were used with 5 differents designs

of composition: T1) 100% buffalo feces, T2) 75% buffalo feces + 25% coffee

cherry, T3) 50% buffalo feces + 50% coffee cherry, T4) 25% buffalo feces + 75%

coffee cherry, and T5)100% coffee cherry. The key parameters measured were

methane production and slurry chemical compositions including NPK, pH, and C/N.

It is found that designs T1 and T2 were superior in methane production, and about

400 liters of methane were used in roasting 3 kg coffee bean as opposed to 6,6 kg

fired wood. Designs T1 and T2 were also better in slurry chemical compositions

than the other 3 designs. It is recommeded that local coffee farmers utilize coffee

cherry based biogas technology in order for their productivity to be sustainable. It is

noteworthy that this study is continued with the next one in which the resulting

slurries are implemented to foster the growth of the coffee plants during the period

of October until December 2016.

110




Emission Factor from Small Scale Tropical Peat

Combustion

Wiwiek Setyawati1,2*, Enri Damanhuri2, Puji Lestari3, Kania Dewi4 1Centre for Atmospheric Science and Technology – LAPAN, Jl.

Dr.Djundjunan 133, Bandung 40173, Indonesia 2,3,4Graduate Studies, Faculty of Civil and Environmental Engineering, ITB,

Jl. Ganesha 10, Bandung 40132, Indonesia


Abstract. Peatfire in Indonesia recently had become an important issue regarding

its global warming impact of green house gases emitted. Emission factor is one of

important variables to determine total emission of carbon released by peatfire. But

currently there were only a few studies about Indonesian peat fire emission factors.

The previous studies of Indonesian peat fire emission factor reported the results from

a very limited number of samples and during smoldering combustion stages only.

Therefore this study attempts to quantify carbon dioxide (CO2) and methane (CH4)

emission factors from laboratory peat combustion based on higher number of

samples and taken both of combustion stages (flaming and smoldering) into

consideration. Peats were sampled from five different districts in Pontianak, West

Kalimantan. Ultimate analysis showed that pure peat composed of relatively high

carbon content (52.85 – 59.43% dry basis). Laboratory experiments were carried out

by burning small amout of peats in a mini furnace and measuring their CO2 and

CH4 emission concentration during flaming and smoldering. CO2, CO and CH4

average emission factors and their related average MCE for flaming were found to

be 2,088 ± 21 g/kg (n = 17), 3.104 ± 7.173 g/kg (n = 17), 0.143 ± 0.132 g/kg (n =

17) and 0.998 ± 0.005 (n = 17), respectively, while for smoldering were 1,831 ± 131

g/kg (n = 17), 138 ± 72 g/kg (n = 17), 17 ± 12 g/kg (n = 17) and 0.894 ± 0.055 g/kg

(n = 17), respectively. This emission factors based on the laboratory combustion

experiment can be conveniently used to estimate CO2 and CH4 emission from

Indonesian peat fire. Equation models to correlate between MCE and emission

factors for both flaming and smoldering were developed. MCE and CO2 emission

factor during flaming was relatively higher than smoldering. On the contrary, CO

and CH4 emission factors were relatively smaller during flaming than smoldering.

Keywords: Pontianak, factor emission, peat combustion, flaming, smoldering


111



Mapping Air Quality Index of Carbon Monoxide (CO)

in Medan City

Isra’ Suryati 1* and Hafizhul Khair 1 1Environmental Engineering, University of Sumatera Utara, Jl Almamater,

Medan 20155, Indonesia


Abstract. This study aims to map and analyze air quality index of carbon monoxide

(CO) in Medan City. This research used 12 (twelve) sampling points around in

Medan with an hour duration each point. CO concentration was analyzed using the

NDIR CO Analyzer sampling tool. The concentration CO was obtained between 1

ppm - 23 ppm, with an average concentration was 9.5 ppm. This condition is still

below the national ambient air quality standard set by Government Regulation of

Indonesian Republic Number 41-1999 amounted to 29 ppm. The result of CO

concentration measurements was converted into air pollutant standard index,

obtained the index value of 58 - 204. Surfer 10 was used to create map of air

pollutant standard index for CO. The map illustrates very unhealthy area where

located in the Medan Belawan district. The main factors affecting the concentration

of CO are from transportation and meteorological factors.

112


Geomatic Engineering Presentation Code: B-09-05


Mapping a Volcano Hazard Area of Mount Sinabung

Using Drone: Preliminary Results

A PM Tarigan1, D Suwardhi2, M N Fajri2, F Fahmi3 1 Civil Engineering Department, University of Sumatera Utara, Jl. Dr.

Mansur No.9 Medan, Indonesia 2 Geodetic and Geomatic Engineering Department, Institute of Technology

Bandung, Jl. Ganesha No.10 Bandung, Indonesia 3 Electrical Engineering Department, University of Sumatera Utara, Jl. Dr.

Mansur No.9 Medan, Indonesia


Abstract. Mount Sinabung is still active since its first eruption in 2010 and has been

declared as national disaster. The persistent eruptions afterward have been lively

and affected severely the surrounding villages located within the 5 km from its

crater. The purpose of this study is to explore drone technology and its applicability

in mapping a volcanic hazard area. The first essential step in this study is to have a

well-defined mission flight in order to acquire air photos that can be processed in

the subsequent procedures. The following steps including geometry correction and

photos stitching were conducted automatically using proper software. It is found

that the resulting photo mosaic and 3D map can be obtained in effective and efficient

manner and several important interpretations can be made from them.



113

Industry Engineering Presentation Code: B-06-11


Anthropometry of the Medan – North Sumatera

Populations

Ikhsan Siregar1 *, Rahmi M. Sari1, Khalida Syahputri1, Indah Rizkya1,

and Muhammad Anggia Muchtar2

1 Department of Industrial Engineering, University of Sumatera Utara,

Almamater Street Campus USU, Medan – North Sumatera, 20155 2Departement of Information Technology, University of Sumatera Utara,

Universitas Street Kampus USU, Medan – North Sumatera, 20155


Abstract. This study was conducted on 780 students at a university in Medan, North

Sumatra. The taken data is divided into two sub-groups, namely men and women,

where the data of 343 men and women as many as 437 people. Taken anthropometry

data is standing position, sitting position, hands, feet and body weight. This study

presents statistical data in the form of standard deviation, average and percentiles.

This research needs to be done because the population of the city of Medan is around

2,497,183 people, and Medan is the third largest city in Indonesia. The objectives

this study is to collect the anthropometry data for ergonomics application and design

product base on the customer need in Medan territory. Data retrieval is necessary

because with this data is expected to be applied in the application of science of

ergonomics, work station design, equipment design; tooling makes it convenient in

everyday use.

Keywords: Anthropometry; Ergonomic; Body Weight; Medan; University Student



114




Effect of Total Quality Management on the Quality and

Productivity of Human Resources

Ikhsan Siregar1 *, Abdillah Arif Nasution2, Rahmi M. Sari1 1 Department of Industrial Engineering, University of Sumatera Utara,

Almamater Street Campus USU, Medan – North Sumatera, 20155 2Departement of Accounting, University of Sumatera Utara, Almamater

Street Campus USU, Medan – North Sumatera, 20155


Abstract. Human resources is the main factor in improving company performance

not only in industrial products but also services. Therefore, all of the organization

performers involved must work together to achieve product quality services

expected by consumers. Educational institutions are the service industries which are

educators and instructor involved in it. Quality of product and services produced

depends on the education organization performers. This study did a survey of

instructors in public and private universities in North Sumatra to obtain the factors

that affect quality of human resources and productivity of human resources. Human

resources quality is viewed by the elements of TQM. TQM elements that are

discussed in this study are leadership, communication, training and education,

support structure, measurement and reward and recognition. The results of this

study showed a correlation numbers across the exogenous variables on endogenous

variables relationships tend to be strong and be positive. In addition, elements of

TQM are discussed except the support structure which has a direct influence on the

quality of human resources. Variable leadership, reward and recognition and quality

of human resources have a significant effect on productivity.

Keywords— Human Resources, TQM, Human Resources Quality, Productivity, Path Analysis




115



The Improvement of Supplier Performance of Oil Palm

Fresh Fruit Bunches toward Higher Competitiveness of

CPO Processing Plant

J Hidayati1*

1Department of Industrial Engineering, University of Sumatera Utara, , Jl.

dr. Mansur Kampus USU Medan 20155

E-mail:[email protected]

Abstract. Supplier selection in oil palm plantations is one effort in improving the

performance of the supply chain of raw materials deliveries of fresh fruit bunches

(FFB) to a processing plant Crude Palm Oil (CPO). Each CPO processing plants

require suppliers who meet the job requirements in accordance with the needs, it is

necessary to do the selection of suppliers in order to maintain and improve the

quality of palm oil products produced. This research use approach Analytical

Network Process (ANP) with the supplier selection criteria, sub-criteria and the

interconnectedness among criteria prescribed by experts. ANP produces Delivery

criteria as the dominant criteria with the highest weight of 22.6%, which determines

the success of suppliers to timely, quantity and quality in delivering FFB as raw

materials to the factory to be processed into the appropriate CPO specified quality

standards. Then followed the criteria of Quality (19.8%), Geographic Locations

(19.5%) and Technical Skills (16%).The lowest weight criteria is Claims Policy & Security (3%).

116




Analysis of Business Process at PT XYZ by Using

SCOR Thread Diagram

M T Sembiring, H C Rambe

Industrial Engineering Department, Faculty of Engineering, University of

North Sumatera, 20115, Medan, Indonesia

E-mail: [email protected] and [email protected]

Abstract. Supply Chain Operations Reference (SCOR) is a standard supply chain

performance evaluation model which is proposed by Supply Chain Council (SCC).

SCOR makes companies can analyse and evaluate their supply chain performance.

SCOR has Thread Diagram which describes business process simply and

systematically to help the analysis of company’s business process. This research

takes place in PT XYZ that is involved in Crude Palm Oil (CPO) industry. PT XYZ

used to be the market leader of CPO industry but nowadays they have a trouble to

compete with new competitors. The purpose of this study is to provide the input for

PT XYZ business process improvement to enhance the competitiveness of the

company with the others. The result obtained shows that there are two performance

metrics that are not reached. The analysis of business process shows the lack of

control role of PT XYZ to supplier and customer side which is going to be the

suggestion of improvement.




117



Supplier Selection Based on the Performance by Using

PROMETHEE Method

Tuti Sarma Sinaga1*, Khawarita Siregar2

1,2Industrial Engineering Department, Faculty of Engineering, University of Sumatera Utara Almamater street, Campuss USU, Medan 20155, Indonesia 2 Head Of Industrial Engineering, Department, University of Sumatera Utara , Indonesia


Abstract. Generally, companies faced problem to identify vendors that can provide

excellent service in availability raw material and on time delivery. The performance of suppliers in a company have to be monitored to ensure the availability to fulfill the company needs. This research is intended to explain how to assess suppliers to

improve manufacturing performance. The criteria that considered in evaluating suppliers is criteria of Dickson. There are four main criteria which further split into seven sub-criteria, namely compliance with accuracy, consistency, on-time delivery,

right quantity order, flexibility and negotiation, timely of order confirmation, and responsiveness. This research uses PROMETHEE methodology in assessing the supplier performances and obtaining a selected supplier as the best one that shown from the degree of alternative comparison preference between suppliers.


118




Identification and Waste Reduction on Rubber Industry

Khalida Syahputri, Rahmi M. Sari, Indah Rizkya, Ikhsan Siregar

Department of Industrial Engineering, Faculty of Engineering, University

of Sumatera Utara


Abstract. Lots of activities in production process can be lead to waste activities.

The waste may cause a degree of efficiency of an industry to be low. This research

was conducted in the rubber industry. In the rubber industry has been a decline in

the level of efficiency. Decreased levels of efficiency occurs because many

inefficient activities that take place during the production process. Activities that

were not contributed to the value of the product lead to waste during the production

process. Identification by the activity is a way to minimize the waste that occurs

so that the efficiency of the production process can be improved. Process activity

mapping in the rubber industry used to identify the activities that take place on the

floor of production in order to reduce waste and propose improvements that can

be done to improve efficiency. The total waste that occurs in crumb rubber industry

amounted to 94 minutes or 1.56 hours.For the proposed improvements in order to

reduce waste are based on two activities, such as transport and unnecessary

motion. Transport activities proposed use of material handling in their daily

activities and to unnecessary motion bydoing a variety of work on the operator.


119



Identification of Potential Hazard Using Hazard

Identification and Risk Assessment

Rahmi M Sari1, Khalida Syahputri, Indah Rizkya, Ikhsan Siregar

Department of Industrial Engineering, Faculty of Engineering, University

of Sumatera Utara, Medan, Indonesia


Abstract. This research was conducted in the paper production’s company. These

Paper products will be used as a cigarette paper. Along in the production’s process,

Company provides the machines and equipment that operated by workers. During

the operations, all workers may potentially injured. It known as a potential hazard.

Hazard identification and risk assessment is one part of a safety and health program

in the stage of risk management. This is very important as part of efforts to prevent

occupational injuries and diseases resulting from work. This research is

experiencing a problem that is not the identification of potential hazards and risks

that would be faced by workers during the running production process. The purpose

of this study was to identify the potential hazards by using hazard identification and

risk assessment methods. Risk assessment is done using severity criteria and the

probability of an accident. According to the research there are 23 potential hazard

that occurs with varying severity and probability. Then made the determination Risk

Assessment Code (RAC) for each potential hazard, and gained 3 extreme risks, 10

high risks, 6 medium risks and 3 low risks. We have succesfully identified potential

hazard using RAC.

Keywords: potential hazard, risk assessment, hazard identification, cigarette paper

120




Measurement of Noise Level in Enumeration Station In

Rubber Industry

Indah Rizkya, KhalidaSyahputri, Rahmi M Sari, IkhsanSiregar

Department of Industrial Engineering, Faculty of Engineering, University of

Sumatera Utara


Abstract. This research was conducted in companies engaged in the production of

crumb rubber. In the rubber industry, the potential noise occurs in the enumeration

station.Stations enumeration use machine and equipment that

potentiallygeneratednoise. Noise can be defined as an unwanted sound because it

does not fit the context of space and time so that may interfere with the comfort and

human health. The noise levelmeasured at random during the initial observation

station enumeration is 101.8 dB. This value has exceeded the Threshold Limit Value

(TLV) Kep-51 / MEN / 1999 and SNI No. 16-7063-2004 so research must be done

to measure the level of noise in the enumeration station. Quantitative methods used

in the study. Observations made with the calculation method of equivalent noise

level. Observations were made on six measurement points for one shift for three

days. The results showed the noise level over the Threshold Limit Value is equal to

85 dBA/8 hours. Based on the measurement results, the whole point of observation

was far above the threshold Limit Value (TLV). The highest noise level equivalent is in the observation point 6 with a value of 102,21dB.


121



Lighting Quality Affects Eyestrain of Operators at

Sorting Station in Beverage Industry

Anizar1*, Erwin1

1Department of Industrial Engineering, Faculty of Engineering, University

of Sumatera Utara, Jl. Almamater Kampus USU Medan 20155


Abstract. This study observes sorters’ performance in two beverage industries

whose job is to separate defect products found. Sorters observe bottles quality and

beverage quality continuously, therefore requiring more focused eyes which makes

eyes’ load heavier. Sorters’ eyestrain causes more defect products pass the selection.

In this study, measurement is conducted toward ilumintation, operators’ time

response, and defect products that pass the selection. Measurement is hold in 2

beverage industries for four days with four measurements per day, twice in the

morning and twice in the afternoon. Ilumination is measured with 4 in 1

environmental meter in grid 1m x 1m, while operators’ time response is measured

with Flicker Fusion. Illuminance is generally higher in the morning than in the

evening, but still under the standard of Indonesia. Overall, sorters’ time response is

higher in the morning than in the afternoon. Higher time respone shows that

operators experiencing lower fatigue than lower time response. The sorting duration

also affects operators’ time response and defect products which pass the selection.

122


Information Engineering Presentation Code: B-08-01


Development of Web-Based Computerassisted

Language Learning in English Intensive Course

R Manda1 , H Nurlaila 2 , W B Indri3 1 Department of Informatics Engineering, Faculty of Engineering,

Universitas Negeri Gorontalo, Indonesia 23Department of English Language Education, Faculty of Language and

Culture, Universitas Negeri Gorontalo, Indonesia

Email : [email protected], 2 [email protected], 3 [email protected]

Abstract. English Intensive course (IC) program is aim to prepare students in

receiving highlevel English material in the next semester. The material in IC

textbook consist of 4 language skills (reading, writing, listening, speaking),

grammar, vocabulary and pronounce. Although with 4 credits per day and 3 session

a week, students ability in English was still unsatisfactory. This research aim to

develop a Web-Based Computer-Assisted Language Learning (WBCALL) as a

learning media that complements IC textbook, so it could increase student

motivation to learn English and to support the creation of more pleasant learning

atmosphere. WBCALL application that have been developed is the type of “Do

what I tell you” application, which is an application that controls the students

activities in drills, exercises, quizzes, and tests, and then the application will notify

the answer is correct or incorrect. This application contains 7 main themes with 4

language skill. The trial result of WBCALL application to English department

students showed that the use of WBCALL application in learning IC is very useful

and helpful in understanding the material, because the presence of WBCALL

application, students could learn IC material both inside and outside the classroom,

so that could impact on increasing students motivation in IC learning.




123



Implementation of ANP Method in Determining

Supplier to Improve Service towards Supermarket

Consumers

A Mulyanto1, T H Amalia2, D Novian1, MR A Kaluku1

1Department of Informatics Engineering, Faculty of Engineering, State

University of Gorontalo, Indonesia 2Department of Accounting, Faculty of Economy, State University of Gorontalo, Indonesia

Abstract. Performance assessment on the supplier by the supermarket manager is

relatively difficult to conduct and implies subjectivity, because there is no

measureable and objective performance indicator. This study aims to assist in the

decision making process and to look for alternative solutions in assessing the

performance of each supplier, so that the service towards the customers will

improve as well. ANP method is used to find the weight of each sub-criteria that

will be used to measure the supplier performance. The weight result of each sub-

criteria derived from the ANP method is used again in measuring the performance

and to rank the performance of each supplier by using TOPSIS

method. Performance measuring by using the ANP and TOPSIS that generates the

highest value of the supplier is 0.71666 while the lowest value is 0.24825. The result

of this study shows that the ANP and TOPSIS methods can be used to measure the

supplier performance therefore it can assist the selection of supplier which can

increase service towards the mart’s consumers.

124




Model of the Material Inventory Management Using

Multimedia Based Information System

Sriadhi

State University of Medan-Indonesia. Jl.WillemIskandarPsr 5 Medan

Estate


Abstract. This research is constituted by the low inventory service performance that

causes decreased performance of the institution. This study was aimed at build

aninventory model using multimedia based information system that generates

inventory data output form of text and 3D visuals for the specific needs of the user.

This study is developmental research and development program using the System

Development Life Cycle (SDLC). The program menu includes inventory data,

circulation usage, maintenance and development as well as financial transactions.

Feasibility testing program conducted by Stub Testing, Unit Testing, Black Box and

White Box Testing and Integration Testing. Execution of the program includes Log

System, Security Access, Menu of Manager,Data Entry, Circulation, Maintenance,

andReport. This information system is able to present a statement in the form of text,

graph and 3-D visual (multimedia), data entry by scaning barcode system, multi user

system, top-down and grass-root access so as to meet user needs in comprehension.

The use of this information system can improve the efficiency of material inventory

services to achieve higher productivity. The program is designed as an open source

program that can be used and developed more widely.

Keywords: inventory, information systems, multimedia, productivity



125



Karawo Motifs Identification Based on the

Classification of User Characters With Naïve Bayes

Method

M.H. Koniyo 1, S. Lamusu 2, L. Hadjaratie 3, A.A. Bouty 4

1 Department of Informatics Engineering, Faculty of Engineering, State

University of Gorontalo, Indonesia 2 Department of Indonesian Language, Faculty of Arts and Culture, State

University of Gorontalo, Indonesia 3 Department of Informatics Engineering, Faculty of Engineering, State

University of Gorontalo, Indonesia 4 Department of Informatics Engineering, Faculty of Engineering, State

University of Gorontalo, Indonesia

Abstract. The general objective of this research is to develop an application that can

be used to design patterns and motifs karawo based on motif classification that suits

with the character and culture from the people of Gorontalo. This study aims to

identify motifs karawo based on user characters using Naïve Bayes classifier (NBC).

The character which is used in this research is the Enneagram character. Results

from this study is an application template design patterns and motifs karawo.

Resulting a template motifs that the attract people to buy and use traditional fabrics

karawo

126




A Method to Extract the Forensic about Negative Issues

from Web

1Mahyuddin K. M. Nasution, and Melvani Hardi, 2Runtung Sitepu, 3Emerson Sinulingga 1Teknologi Informasi, Fasilkom-TI, Universitas Sumatera Utara, Padang

Bulan 20155 USU, Medan Indonesia 2Program Studi Hukum, Fakultas Hukum, Universitas Sumatera Utara,

Padang Bulan 20155, USU Medan Indonesia 3Teknik Elektro, Fakultas Teknik, Universitas Sumatera Utara, Padang

Bulan 20155 USU

Medan Indonesia

E-mail: [email protected], [email protected], [email protected], [email protected]

Abstract. In the social world there are many issues: positive or negative. The

negative issues affect the level of social comfort. On social media such as Web,

every issue positioned based on the document, which has its own attributes, such

as the URL address and date of creation. Not

easy to extract information from the Web, as well as to determine the origin of an

issue that is flowing in the web. This paper is to derive a method for revealing the

origin of an issue based on the characteristics of each webpage


127



New Similarity

1Mahyuddin K. M. Nasution, and Opim Salim Sitompul, 2Sawaluddin

Nasution, 3Himsar Ambarita 1Teknologi Informasi, Fasilkom-TI, Universitas Sumatera Utara, Padang

Bulan 20155 USU Medan Indonesia 2Matematika, Fakultas Matematika dan Ilmu Pengetahuan Alam,

Universitas Sumatera Utara, Padang Bulan 20155 USU Medan Indonesia 3Teknik Mesin, Fakultas Teknik, Universitas Sumatera Utara, Padang

Bulan 20155 USU

Medan Indonesia

E-mail: [email protected], [email protected], [email protected], [email protected], [email protected]

Abstract. Either space or object consists of parts, where a part of it is

interchangeable with part from other objects based on similarities in the nature of

the parts. However, the similarity of the two objects must be measured in advance

to determine the difference and closeness.

There are many ways to measure similarity and dissimilarity, but there is no

measurement of the similarity of two objects by the parts semantically. In this article

we will reveal new similarity is formally based on the concept of multilevel sections

and triangular equation. The new similarity applied to the URL address to measure the similarity of identity of web pages.

128




Decision Support Systems Development for an Artificial

Insemination Project in Community Based Precision

Livestock Farming

Cucuk Budiyanto

Informatic Education Department, Sebelas Maret University, Surakarta


Abstract. The success of an artificial insemination of cattle depends on the accuracy

of timing of semen injection within a certain duration of time during the estrus phase

of the female cattle. Contemporary practice in traditional cattle reproductive system

relies on the visual observation of estrus indicators.This paper proposes for the

design of a Decision Support System assisting the determination of semen injection

to post-partum female cattle.The system would suggest the time frame for injection

treatments, the distance of the location from the center point, and the best route of

the treatments for multiple locations based on the shortest route path algorithm. The

paper concludes with the potential contributions of such system for the development

of Precision Livestock Farming and rural farmers’s prosperity.



129

Life Science Presentation Code: A-06-02


Microsatellite Analysis on Genetic Variation in Two

Populations of Red Mangrove Rhizophora Mangle L.

(Rhizophoraceae) and Its Implication to

Conservationsetya

M Basyuni1*, S Baba2, and H Oku3

1Department of Forestry, Faculty of Forestry, University of Sumatera Utara,

Jl. Tri Dharma Ujung No. 1 Medan, North Sumatera 20155, Indonesia 2International Society for Mangrove Ecosystems, Faculty of Agriculture,

University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan 3Molecular Biotechnology Group, Tropical Biosphere Research Center,

University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan


Abstract. Two populations of red mangrove Rhizophora mangle L.

(Rhizophoraceae) in Ecuador was examined using five microsatellite primers.

Microsatellite loci were low polymorphic with 2-5 alleles per locus. The level

observed heterozygosity detected overall loci population, ranged from 0.189 to

0.405, indicating that these populations had little or no genetic variation.

Furthermore, genetic variation was maintained within population (GST=0.012). Both

populations showed high level of inbreeding (FIS=0.695, FST=0.024), suggested that

mangrove species behave as colonizing species. The genetic structure was tested by

analysis of molecular variance (AMOVA) using the infinite alleles model (F-

statistics), found that most variation was among individuals within population (33.3

%) and within individuals in the total populations (66.6 %), whereas there was little

variation between populations (0.1 %). An understanding of genetic variation of R.

mangle suggested the importance of conservation this species to increase the

number of populations.

130




Low 25(OH)D Serum May Not Reflect at Risk Skeletal

Health But Not with Body Mass Index in Women

Dina Keumala Sari1*, Zaimah Zulkarnaini Tala1, Sri Lestari2, Sunna

Vyatra Hutagalung3, and Ratna Akbari Ganie4

1Nutrition Department, Faculty of Medicine, University of Sumatera Utara,

Jl. dr. Mansur Kampus USU Medan 20155 2 Public Health Department, Faculty of Medicine, University of Sumatera

Utara, Jl. dr. Mansur Kampus USU Medan 20155 3 Parasitology Department, Faculty of Medicine, University of Sumatera

Utara, Jl. dr. Mansur Kampus USU Medan 20155 4Clinical Pathology Department, Faculty of Medicine, University of

Sumatera Utara, Jl. dr. Mansur Kampus USU Medan 20155

Abstract. Background: The mechanism of low circulating 25(OH)D serum in obese

people may be due to high 25(OH)D level in adipocyte resulting low in circulation

or low vitamin Dbinding protein (DBP). However, obese people have a higher bone

mineral density (BMD), which suggests that low 25(OH)D may not associate with

other bone health parameters. Objective:We sought to determine whether there is

association between 25(OH)D 1) with bone health parameter differ by body weight;

2) Body mass index and BMD. Design: We conducted a cross-sectional

observational study of 132 women aged 20-50 years in North Sumatera, Indonesia.

Results: Serum total 25(OH)D was no different in normal, overweight, and obese

women subjects ( 15.2±4.9 ng/mL). There was 77.3% categorized in deficiency and

insufficiency (22.7%). There was no association among bone health parameters and

body weight, but there is an association between BMD and body weight.


131



Profile of Obesity and Diabetes Mellitus in Adult Female

Population in North Sumatera, Indonesia

S Lestari1, Y Machrina2 and M Daulay2

1Department of Public Health, Faculty of Medicine, University of Sumatera

Utara 2Department of Physiology, Faculty of Medicine, University of

Sumatera Utara


Abstract. Non-communicable diseases (NCDs) have become the leading causes of

death globally, including Indonesia. This study is conducted to find out the

distribution of obesity and diabetes mellitus (DM) in adult female population in

North Sumatera Utara, Indonesia. A cross-sectional study was conducted from

August to September 2016 on a total of 200 adult female respondents aged 20-65

years who agreed to participate in Langkat district and Medan city, North Sumatra.

Criteria of obesity based on Body Mass Index (BMI), might be inappropriate for

Asian population. DM was diagnosed if plasma glucose level is >200 mg/dl. The

prevalence of obesity in female among aged ≥20 years were 68.5%. Subsequently,

obesity and overweight categories of BMI are highest in the 41-50 year age group

(35.5% and 20.5% respectively) as well as pre-DM and DM (24.5 and 11.5%,

respectively). The age group of 41-50 years old have also the highest rates of obesity

and overweight BMI categories as well as highest rate of DM in this research. In

addition, more investigation is needed to establish a relationship between obesity

and DM. Therefore, comprehensive strategies for the prevention and control of the

problem of obesity and DM in adult female are urgently required.

132




Improving Students’ Graphing Skills through

Quantitative-Based Lab Activities

Nurcahya Meisadewi1, Sri Anggraeni2, Bambang Supriatno3

1Students Biology Education, Postgraduate School, Indonesia University of

Education (UPI), Indonesia. 2,3Department of Biology Education, Postgraduate School, Indonesia

University of Education (UPI), Indonesia.


Abstract. The background of this study is students have difficulties about using

scientific language in graphing skills. The purpose of this study was to investigate

the improving a students' graphing skills of using quantitative-based lab activities

in environmental change materrial. A weak experimental with pre-test post-test

group designs was untilized in this study. The sample consisted of 34 students of

the 10th grader students in Cirebon, West Java. Instruments graphing skills test that

used of this study consisted graph construction and graphs interpretation skill.

Data analysis N-gain average of graphing skills of the students is 0,66. The results

of this study suggest that an increase students' graphing skills through quantitative-

based lab activities in environmental change material.


133



Interpretation of Brown Planthoper (Nilaparvata lugens

Stal.) Attacks Using Exponential Smoothing and Spatial

Autocorelation

Bistok Hasiholan Simanjuntak , Sri Yulianto Joko Prasetyo,

Nugraheni Widyawati, Yohanes Hendro Agus , Christine Dewi

Study Centre SIMITRO - Informatic Engineering Faculty & Agriculture &

Business Faculty, Satya Wacana Christian University, Salatiga, Indonesia


Abstract. Different ways of controlling and preventing for brown planthopper

attacks (Nilaparvata lugen Stal.) called BPH in Boyolali regency has been done, but

until this time the loss due to this pest occur periodically. This study aims to explore

the interpretation of the results for prediction BPH attacks in Boyolali district, which

is done using a combination of Exponential Smoothing methods and Spatial

Autocorrelation. Training data for predicting the BPH attacks, has been taken from

the events in 2001 until 2007, to predict the BPH attacks in 2008. Prediction for the

spatial distribution of BPH attack using Local Moran's and Local Geary, where as

for visualization is using choropleth Map and Local Moran's Map. Rainfall data

from 2001 until 2010 is used to determine the periods of wet and dry seasons in

Boyolali. To visualizing the results of the analysis, was used a predictive maps for

attacks of monthly periods and with the sub districts area as the smallest unit area.

The results showed that the combination of methods can be used to predict the BPH

attacks and can provide predictive information expansive dynamics and time

attacks, include the deployment of attack pattern based on the subdistrict area, the

initial attacks and the time peak of attacks. This prediction scan be used as a

consideration to formulating early warning information and the priority how to

overcome them by region.

Keywords: Brown Planthoppers, Exponential Smoothing, Spatial Autocorrelation,


134




Cloning and Phylogenetic Analysis of Actin Genes from

Mangrove Family Rhizophoraceae

M Basyuni1*, S Baba2, and H Oku3

1Department of Forestry, Faculty of Forestry, University of Sumatera

Utara, Jl. Tri Dharma Ujung No. 1 Medan, North Sumatera 20155,

Indonesia 2International Society for Mangrove Ecosystems, Faculty of Agriculture,

University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213,

Japan 3Molecular Biotechnology Group, Tropical Biosphere Research Center,

University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213,

Japan


Abstract. Plant actin is one of the most conserved eukaryotic proteins to maintain

the basic cellular process. Homology based PCRs method with degenerate primers

designed from the conserved amino acid sequences of diverse actin genes have

resulted in cloning of three actin genes. Three partial actin genes were cloned from

mangrove family Rhizophoraceae, namely leaves of Bruguiera gymnorrhiza, roots

of Kandelia candel and leaves of Rhizophora stylosa. The clones termed BgAct1

(944 bp, coding for 273 amino acids), KcAct1 (1083 bp, coding for 273 amino acids),

and RsAct1 (894 bp, coding for 273 amino acids), respectively. The deduced amino

acid sequences of BgAct, KcAct1 and RsAct1 showed significant similarity (93-96%)

to known plant actin genes. These results showed that three fragment genes of

BgAct, KcAct1 and RsAct1 encoded actin gene. To observe the relationship of BgAct,

KcAct1 and RsAct1 to other plant actin genes, the rooted phylogenetic analysis was

constructed. Phylogenetic tree shows that BgAct, KcAct1 and RsAct1 join with

Eucommia Act and Pyrus Act cluster, suggesting that our three actin genes are new

members of plant actin genes.


135



Theta Brainwave Activity as the Response to Lavender

(Lavendula Angustifolia) Aromatherapy Inhalation of

Postgraduate Students with Academic Stress Condition

Shanty R Kusumawardani1, Dr. Lulu L Fitri2, Dr. Suprijanto, S.T, M.T3 1.Sekolah Ilmu dan Teknologi Hayati, Institut Teknologi Bandung,

Jl.Ganeca 10 2.Sekolah Ilmu dan Teknologi Hayati, Institut Teknologi Bandung,

Jl.Ganeca 10 3.Fakultas Teknik Industri, Institut Teknologi Bandung, Jl.Ganeca 10


Abstract. The objective of this study is to determine the activity of Theta brainwave

as the response to Lavender aromatherapy inhalation of postgraduate students with

academic stress condition. This research involved 10 postgraduate students

consisted of 5 males and 5 females who were still pursuing their final research and

were recruited based on assigned criteria and filled two modified questionnaires to

determine the stress category. The procedure of Lavender aromatherapy inhalation

was given intentionally for a period of 16 days of experiments for 15 minutes of

each day. Evaluation of brain electrical activity focused on Theta (frequency 4-7Hz)

and were recorded by Electroencephalograph (EEG) EMOTIV EPOC from 6

channel electrodes on the scalp (AF3, AF4, T7, T8, P7, P8). Essential oil compound

from Lavender was evaluated by using GCMS (Gas Chromatography Mass

Spectrometry). Data were analysed by comparing baselines before treatment and

two weeks after aromatherapy administration using General Linear Model and

Paired t-test statistical procedure. The result revealed that: (1) the main constituents

of Lavender essential oil are linalool (20,11%) and linalyl acetate (26,34%), (2)

there was no significantly increase in Theta power both in women and men (p >

0,05), (3) there was an asymmetry of Theta brainwave pattern at P7 and P8 channel

in women. The constituents of Lavender essential oil activate olfactory neuron and

modulate inhibitory neurotransmitter toinfluence EEG pattern.

Keywords: Brainwave, Theta, Stress, Aromatherapy, Lavender, Postgraduate


136




Induction of Toll-Like Receptor (TLR)2 and MyD88-

Dependent TLR/ MyD88-Independent TLR - Signaling

in Response to Bacterial Infections in the Gouramy Fish

(Osphronemus Gouramy)

D Kusumawaty1*, S Suhandono2, A Pancoro2 and I N P Aryantha2 1Dept. of Biology Education, Indonesia of Education University, Jl. Dr.

Setiabudi No 229 Bandung Indonesia 2School of Life Science and Technology. Bandung Institute of Technology

(ITB), Jl. Ganesa No 10 Bandung Indonesia


Abstract. Toll-like receptors (TLRs) are a family of innate immune receptors that

recognize molecular patterns associated with microbial pathogens (PAMP), and

induce antimicrobial immune responses. Here we report expression of TLR2

/myd88/IL1β from the Gouramy an economically freshwater fish in Indonesia.

Upon stimulation with Aeromonas hydrophila the Osp TLR2 expression was

obviously upregulated in spleen and liver, Myd88 expression upregulataed in spleen

and kidney, and IL1β expression was upregulated in spleen, kidney and liver.

Highest expression of TLR2 was in liver orhepatopancreas, MyD88 in kidney and

IL1β was in spleen. Inductive expression of TLR2, MyD88, IL1β genes were

observed following LPS/Poli IC/Zymosan –treatment in kidney cell, and

Aeromonas hydrophila infections. These findings together highlighted the

contribution of TLR2 in augmenting innate immunity in fish, and indicated t’s

important role in immune surveillance of various organs during pathogenic

invasion. This study will enrich the information in understanding the innate immune

mechanism in fish, and will be helpful in developing preventive measures against

infectious diseases in fish.

Keyword: Toll-like receptor 2, Osphronemus gouramy, Aeromonas hydrophila,

innate immune receptors



137



The Prediction of Sensitivity towards Uncanniness: an

Applied Psychological Study on Novel Readers in the

light of Anthropomorphism and Attitudes towards

Thrownness

Christa Gabriella Emma Meullemans1 and Juneman Abraham1 1 Psychology Department, Bina Nusantara University, DKI Jakarta 11480,

Indonesia


Abstract. Uncanny elements are often found in the art works, especially in fiction

literature. In particular, uncanniness emphasizes the sense of strangeness or

weirdness that comes from something seemingly familiar within an unexpected

context; e.g. talking animals contained in a story. People have different levels of

sensitivity to the sense. Novels with the fantasy genre have been linked with

uncanniness. The preference toward the uncanniness might be associated with

magical thinking. Anthropomorphism, the attribution of human character in objects

or animals, as a dimension of the thinking, is hypothesized to be able to predict

sensitivity to uncanniness. The attitude toward thrownness could also allegedly

predict the sensitivity. A positive attitude might function as an escape from, or the

compensatory fulfillment of, existential emptiness. Participants of this study were

162 university students (67 males, 95 females, Mage = 20.80 years old; SDage = 1.733

years) of the study program School of Design and Literature at Bina Nusantara

University, Jakarta, Indonesia and the University of Indonesia, Depok, Indonesia,

who were recruited through purposive sampling technique. The design of this study

was correlational-predictive, and the data were obtained through the survey using

psychological scales. Multiple linear regression analysis found that

anthropomorphism has predictive power in the positive direction, while the attitude

toward thrownness is not able to predict the sensitivity to uncanniness. This study

has implication for art psychology and life science, about how to increase the

enjoyment of readership regarding the factor raising appreciation toward a strange

or fear perception experienced by a reader.


138


Life Science Presentation Code: B-10-11


Knowledge Worker Productivity Indicators for Small

Consultant Businesses: A Thematic Analysis

M C Sondari and E Apriyanti

Universitas Padjadjaran, Bandung, Indonesia


Abstract. Traditionally, knowledge workers can be found in large enterprises. But,

current trend shows that small businesses or new ventures are developed by people

with high intelligence capacity, depends on creativity of their people, and create

innovation as a business model. Thus, many small businesses have knowledge

workers as their business backbones. This paper aims to develop indicators to

measure productivity of knowledge worker in small consultant businesses. Using

qualitative method, this paper will explain the process of thematic analysis towards

the result of interview. The result shows that Knowledge worker productivity consist

of six dimensions, namely: systematic and structured, learning motivation, focus,

output, punctuality and communication. Detail of indicators for each dimension will

be discussed.

Keywords: thematic analysis; knowledge worker; productivity indicators


139

Management Science Presentation Code: A-09-01


The Relation Leadership, Organization Culture and

Work Motivation on Employees Performance

Rino1 and NurAulia Rafika2

1 Student Program Doctoral Management Science UPI 2 Student Program Bachelor Economic Education UNP


Abstract. This research aimed to analysis the influence of leadership on

organization culture, the influence of leadership, organization culture on work

motivation and the influence of leadership, organization culture and work

motivation on employees performance. This research used quantitive approach. The

sample of research was the employees of department of energy and mineral

resources of West Sumatera Province, which total were 87 employees. This research

uses analysis technique of Partial Least Square (PLS). The research shown that

leadership influenced of the organization culture and work motivation positively and

significantly, then the organization culture also influenced the work motivation

positively and significantly, then the work motivation also influenced the employees

performance positively and significantly. Next, the leadership and organization

culture influenced the employees performance through work motivation, or it could

be said that the work motivation as the intervening variable.

Keywords: Leadership, Organization Culture, Motivation of work, Employees

Performance

140




Financial Performance Analysis Using Economic Value

Added (EVA)

Ende


Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia


Abstract. Financial performance is an indicator of the company's success in

managing the finance functions. EVA method is very good to measure financial

performance because it can describe the actual of company value. The object of this

research is PT Kalbe FarmaTbk with financial data from the year 2012 up to 2014.

This research uses the descriptive quantitative method. Based on computations, the

EVA value of the company has fluctuated and positive. The positive value of EVA

indicates that the company has the ability to create economic value added and rate

of returns (operating profit exceeds the cost of capital). In other words, the company

has created wealth for the shareholders. In this research, some recommendations are

given to increase the EVA value.


141



Development of Managerial Competence through

Knowledge Management in Small Industries in West

Java

Adman, Suwatno, Tjutju Yuniarsih



Abstract.The research focuses on the gaps of the capability of managerial

competenceamong small industry holder sat the province of WestJava. It specifically

aims to identify the factors influencing managerial competence capability and

formula tean appropriate managerial competence profile for small business holders

in West Java province. This research was conducted with the quantitative approach

by using survey method and data analysis technique of MSA(Measure of Sampling

Adequacy) factors analysis,based on Bartlett's test of sphericity. Research

population includes all of small and middle industry holders in West Java Province

(198.478 small industry business). Through the cluster random sampling,400

respondents were taken as the research sample representing

fourregions:SukabumiRegency,Purwakarta Regency,Cirebon Regency and

Bandung Regency. The results show there are three major factors influencing

managerial competence capability, namely technical skill,human relations skill, and

conceptual skill. The three factors are the embodimentof knowledge management..

Keywords: knowledge management, managerial competence, small and middle

industry

142




Performance of EAM and MEAM Potential for NiTi

Alloys: A Comparative Study

Munaji1, Sudarno1, Dian Laila Purwaningroom2, Rizal Arifin1* 1Faculty of Engineering, UniversitasMuhammadiyahPonorogo, Jl. Budi

Utomo No. 10, Ponorogo 63471 Indonesia 2Faculty of Health Sciences, UniversitasMuhammadiyahPonorogo, Jl. Budi

Utomo No. 10, Ponorogo 63471 Indonesia


Abstract. NiTi alloys is one of the unique materials exhibiting shape memory

effect. The martensitic transformation is the main reason for their behaviour, which

is very sensitive to the heat treatment and the ratio of Ni-Ti atoms. The study of the

NiTi alloys behaviour at the atomic level is indispensable to elucidate the

mechanism of the martensitic transformation under the specific conditions.

Molecular dynamics simulation is widely used in this kind of study. The results of

the molecular dynamics simulation depend on the selection of the interatomic

potential. This study is aimed to evaluate the performances of the standard EAM

potentials of Zhou et al. and the modified EAM of Ko et al. by means of obtaining

the more accurate lattice constant in comparison with the experimental value. These

interatomic potentials are also tested to reproduce the recrystallization behaviour

below the melting temperature. We found thatthe high accuracy of the lattice

constant for NiTi alloy systemcan be achieved by employingMEAM potential of

Ko et el.However, the EAM potential by Zhou et al. gives the rapid recrystallization

of NiTi alloys at 1100 K. These results indicatethat the MEAM potential of Ko et.

al. shows the better performance at low temperature simulation.


143



Entrepreneurial Interests of Posyandu Cadres in

Karang Berombak Village West Medan Sub-District

Medan City

Ritha F. Dalimunthe1, Heldy.BZ2 1Profesor, Departement of Management, Economic AndBussines Faculty,

University of North Sumatera 2Lecture, Departement of Health Administration and Policy, Public Health

Faculty, University of North Sumatera


Abstract. This research is to gain an entrepreneurial mindset and entrepreneurial

interests among Posyandu cadres in KarangBerombak Sub-District of Medan Barat

Medan in running entrepreneurship. The formulation of the problem is whether the

entrepreneurship mindset of cadres affects the interest in entrepreneurship or not.

Methodology:This research is analytic with a questionnaire. There are 34 health

cadres of total samples from 18 Posyandu (Maternal & Child Health Centre) which

are situated in the KarangBerombak Village by taking sampling technique with

purposive random samplingwho selected from 18 Posyandu with the provisions've

had entrepreneurial experienceand has been already 3 years as cadres. Analytic form

was used simple linear regression test to see the effects of the influence the mindset

of the interest in entrepreneurship. Findings:The results showed that the

entrepreneurial mindset affects the interest of entrepreneurship of Posyandu cadres

in KarangBerombak village where entrepreneurial mindset consists of the desire to

do business, understand finance and financial management, business ideas, a

willingness to improve the business, willing to invest in training and to be able to

see opportunities. That affects the interests of the entrepreneurial cadres is one of

the potential entrepreneurs to boost the economy. Posyandu cadres are also expected

to move in increasing family income and build a social entrepreneur from Posyandu.

Keywords: Posyandu Cadres, Entrepreneurship, Empowering



144




Factors that Influence Financial Literacy: A Conceptual

Framework

AnisahFirli1 1 Indonesia University of Education 1 Telkom University


Abstract. Development of financial management theory developed rapidly;

forming branches roots. Start with Value of the firm theory, capital structure theory

up to investment theory. Investment theory; behavioural finance is relatively new

field that combine behavioural, psychological, economics and finance. This paper

aims to develop conceptual Framework of factors that Influence Financial Literacy.

Research in factors that influence financial literacy gives new development of

financial theory through perception view. This research use qualitative study with

grounded theory model of financial literacy. Moreover, this research gives

implication in comprehensive framework that can be used in developing future

research.

Keywords: Behavioural Finance, Financial Literacy, Financial Decision


145



Financial Satisfaction on Small and Medium

Business in Brastagi City

Beby Kendida Hasibuan1,

,Yeti MeilianyLubis2

1Departement of Management, Faculty of Economic and Business

University of Sumatera Utara, Jl. Prof. T.M Hanafiah, SH,

Kampus USU Medan 20155 2Departement of Accounting , Faculty

of Economic and Bisiness University of Sumatera Utara, Jl.Prof. T.M Hanafiah, SH,Kampus USU Medan 20155


Abstract. Indonesia is a country with very beautiful nature at its regions. One of

the wellknown tourism resorts in North Sumatera is Brastagi tourism site. This

tourism object attracts domestic and international tourists to visit. This situation

will certainly be beneficial for people around. We can find many micro, small, and

medium enterprises (SMEs) around Brastagi site. Even though we can still find

many of SMEs, we feel dissatisfied with their financial condition. This research

aims at finding factors that cause financial satisfaction among SMEs in Brastagi

city viewed from the demography side. The demography indicators we introduce

are education, gender, age, income, marital status, number of children, business

ownership, and length of business operation. By using cross-tab method analysis,

we found out that demography factors that have correlation with financial

satisfaction of SMEs in Brastagi site are factors of education, income, business

ownership, and length of business operation. Therefore, this research concludes

that to raise the financial satisfaction, someone should consider the four

demography factors above. It is expected that the implication of this research will

improve the financial satisfaction of SMEs forentrepreneurship.

Keyword: financial satisfaction and demography.


146




Analysis of Effect of Physical Evidence and Service

Assurance on Customer Satisfaction and Customer

Loyalty in using Car Rental Service (PT.Pusaka Prima

Transport Cases)

Adryan Rachman


JalanDr.Setiabudhi 229, Bandung 40154, Indonesia


Abstract. Business competition becomes more intense, this condition forces any

kind of business to compete on a competitive basis. In conducting its business, car

rental services are trying to give attention to physical evidence and assurance

services, to create customer satisfaction and customer loyalty. As the observation

unit, namely PT Pusaka Prima Transport, In this experiment, four (4) pieces of

physical evidence variables, service assurance, and customer satisfaction as

independent variables. Meanwhile, as the dependent variable is customer

satisfaction and customer loyalty. The method used in this research is descriptive

analysis method, using multiple regression, and tools questionnaire given to 107

consumers PT Pusaka Prima Transport. To see how much influence as well as the

relationship between the physical evidence, service assurance, customer satisfaction

and customer loyalty in PT Pusaka Prima Transport by using multiple regression.

The results showed that the four variables have a significant influence in the amount

of 42.99% for physical evidence to customer satisfaction, 18.40% for the guarantee

of service to customer satisfaction, and 64.8% for customer satisfaction to customer

loyalty.


147



Financial Behavior and Performance on Small and

Medium Enterprises in Coastal Area of Medan City

IsfentiSadalia1,*, Syahyunan2, and Novi AndraniButar-Butar3

1Management Department, Faculty of Economic and Business

University of Sumatera Utara, Jl. Prof. T.M Hanafiah, SH, Kampus

USU Medan 20155 2Management Department, Faculty of Economic and Business

University of Sumatera Utara, Jl. Prof. T.M Hanafiah, SH, Kampus

USU Medan 20155 3Management Department, Faculty of Economic and Business

University of Sumatera Utara, Jl. Prof. T.M Hanafiah, SH, Kampus USU

Medan 20155


Abstract. This research was conducted to search the financial performance of

local small and medium enterprises (SMEs) of coastal area of Belawan in Medan

city. This study used 60 respondents to see the effect of the behavior of financial

management such as habits, field and capital on financial performance. This

research used dummy variable-gender to find the level of financial performance

between men and women. This test used descriptive and regression analysis as

the research methods and SPSS as the analysis tools. The result showed that

simultaneously habits, field, capital and gender have significant effect on

financial performance. While partially, habits have significantly positive effect

on financial performance. Field has no significant effect on the financial

performance. Capital has no significant effect on financial performance and

dummy variable explains that men have smaller financial performance than

women do. The implication of the research explains that the owner of SMEs can

manage their financial behavior which consists of habits, field andcapital.

Keyword: habits, field, capital, gender, financial behavior, financial performance.


148




Influence of Public Relation on University Image

Arciana Damayanti1, S. Sulastri2

1Student of Program Doctoral Management Science UPI 2Lecture of Business Management UPI

E-mail: [email protected]), [email protected])

Abstract. The image of university can be seen from how big the interest

ofstudents in choosing a university, and how much research produced.

Theexistence and functions of public relations in college is important and has

alarge stake in sustaining and achieving organizational goals mainly through

thedissemination of information. Information services provided by

publicrelations at a university greatly affect the positive image of the

institutionconcerned. Therefore, the management functions of public relations in

collegeincreasingly demanded in providing professional information services to

thepublic. The aim of this paper is to analyze the influence of public relation

onuniversity image. Data were collected in a survey of student of

UniversitasPendidikan Indonesia using questionnaire conducted by interviewing

with 400students. Path Analysis of data 400 respondents was used to test

onehypothesis. The results show that public relations is a positive influence

inimproving the image of the university in which the largest contribution

isobtained from public service activities while the lowest is the

identitydimensional media.

Keyword: Public Relation, University Image, Identity.


149



Merit System in the Placement of Civil Servants and Its

Effect toward Performance of Sub-district Office in

Labuhanbatu Region Nort Sumatera

Zulkifli Musannip Efendi Siregar1, Junita Lubis2 1 Student Program Doctoral Management Science UPI 2Lecturer at College of Economic Sciences Labuhanbatu


Abstract. The Dimensions of Merit system in the placement are the educational

background, knowledge, skills, work experience and ethics. This study want to

know the influence of the educational background, knowledge, skills, work

experience and ethics toward civil servants staffing and the effect of educational

background, knowledge, skills, experience and work ethic of civil servants on the

performance of the Sub-district office in Labuhanbatu Regency,Nort Sumatera with

staffing as an intervening variable. The population are the elements of leadership at

the Sub-district office Labuhanbatu as much as 2 people per section of Sub-district

office, finance sub-section, sub-section plan, sections of the government, the

development section, safety and hygiene section, social welfare section and public

section numbered 108 people. Data analysis techniques in the study is the analysis

of the path (path analisys). The data processed by the program LISREL 9.1. The

results showed that a significant influence between the educational background,

knowledge, skills, experience and work ethic of civil servants on placement of civil

servants; a significant influence between educational background, knowledge,

skills, work experience, ethics and placement on the performance of the Sub-district

office in Labuhanbatu Regency North Sumatera. It is recommended that further

enhanced suitability placement with qualified civil servant

Keywords :Performance, Educational Background, Knowledge, Skill, Work

Experience, Ethics, and Placement


150




The Profitability Analisys of PT. Garuda Indonesia

(Persero) Tbk. Before and After Privatization

Iis Nurasiah1, Anggara2

1Student Management Science of Indonesian Education University,

Bandung, Indonesia 2Alumni STIE Bina Bangsa Banten


Abstract.This study puposes to determine differences in the profitability of PT.

Garuda Indonesia (Persero) Tbk. before and after privatization using Net Profit

Margin (NPM), Return on Investmen (ROI) and Return on Equity (ROE).This

research used a case study method with a qualitative approach. The data used are

secondary data from official financial statements of PT.GarudaIndonesia(Persero)

Tbk.periode 2008-2013, 3 years before privatization and 3 years after

privatization.Data analysis was performed by reviewing the financial statement data,

calculate& determine the value of profitability ratios before and after privatization,

and determine the amount of the average difference before and after

privatization.The result proved that the average ratio of profitability calculated by

applying NPM , ROI and ROE in every year shows a decrease that caused imbalance

components forming of NPM , ROI, ROE, where profit is getting down while the

selling, total assets and equity increase more and more from the previous period.

The implication for the next reseach is a research that focus on determine how long

a company can emerged from the crisis by privatization decision.

Keywords: Privatization, Net Profit Margin (NPM), Return on Investment (ROI),

Return on Equity (ROE)


151



Social Security Contribution to Productivity and Wages

in Labour Organization Perspective

Yudi Nur Supriadi



Abstract.This research is investigating the discrepancy fulfillment of the right to

social security and decent wages to increase labor productivity in the perspective of

labor organizations, in which the company provides social security, and wages have

not been able to meet the needs of workers, on the other hand, the workers are always

required to increase productivity. Therefore, this study aims to identify the social

security and wages that affect labor productivity. So this research will provide input

to the company to undertake effective measures and efficient for the company's

sustainability. This research was conducted using a survey method approach and

quantitative data analysis techniques that are causal comparative sample of 223

respondents from 504 study population includes all labor organization's District and

municipal in Banten Province. The results showed the significant influence of social

security and wages to increase labor productivity. Therefore, companies are required

to act strategically in maintaining prohibitionists labor through re-design of the work

environment, increase workers' participation, intervention, and satisfy the needs of

workers whose impact will be realized understanding between workers and

companies in maintaining the company's business.

Keyword:productivity, social security, wages


152




The Effect of GreenHome, GreenBehavior, and

Livability on the Financial Incentive in Medan City,

Indonesia

Khaira Amalia Fachrudin1, Hilma Tamiami Fachrudin2 1Faculty of Economic and Business, University of Sumatera Utara,

Medan, Indonesia,

Jl. TM HanafiahKampus USU Medan 20155 2Faculty of Engineering University of Sumatera Utara, Jl.

AlmamaterKampusUSU Medan 20155


Abstract. A green home focuses on the efficient usage of resources. The purpose

of this study was to examine the effect of green homes, green behavior, and livability

on financial incentives. The population of this study is a largest and oldest housing

in Medan City and sample is 100 houses. The method that used is path analysis.

The findings show that the application of the green concept according to the

residents have positive and significant impact on livability within alpha 5 percent,

but livability has positive and unsignificant impact on the financial incentive. The

application of green concept have no significant effect either directly or

throughlivability to the financial incentive. Factor affecting the financial incentive

is green behavior. It is expected that residents can increase the awareness about environment and have green behavior.

Keywords: green home, livability, financial incentives


153



Assessing the Effects of Service Quality of Government

and Student Satisfaction in Education’s Field

Dyah Purwaningsih

Doctoral student of management science, Indonesia University of

Education (UPI)


Abstract. The aim of the research is to analyze how the service quality of Indonesian

government affect student’s satisfaction in the education field. Data collection was

conducted in September 2016 through distributing questionnaires to 132 students at

private universities in south Tangerang city. Sampling used incidental sampling

method, while data analysis is descriptive, qualitative and quantitative, which were

analyzed with the Importance Performance Analysis.The survey results revealed

that the satisfaction level of the students of South Tangerang good enough to service

of the Government in higher education sector with a value of 83.61 using Customer

Satisfaction Index (CSI). Nevertheless, there are several factors that should be

prioritized for immediate enhanced, namely: government's ability to respond

effectively to solve the problems in the academic world, fairness of the government

in providing assistance to both state and private universitiesand attention of the

government to higher education.

154




Impact of the Economic Growth and Acquisition of

Land to the Construction Cost Index in North Sumatra

Hasan Basri Tarmizi1, Murni Daulay2 and Iskandar Muda3 1,2,3 Faculty (School) of Economic and Business, University of Sumatera

Utara (USU) Jl. Prof. TM Hanafiah SH No.12 Medan-Indonesia. Postal

Code 20155

1E-mail : [email protected]

Abstract. This study aims to test the aggregation of the economic growth of North

Sumatra and the influence of the Tax on Acquisition of Land and Building to the

Construction Cost Index in North Sumatra. This type of research is explanatory

survey with quantitative methods. The population and the sample district in North

Sumatra with the observation time series and cross sectional. The analysis tool used

is multiple regression. The results showed that there was economic growth

aggregation of North Sumatra and the influence of the Tax on Acquisition of Land

and Building affect the Construction Cost Index.



155

Management Science Presentation Code: B-09-11


The Impact of Modern Retail Minimarket towards the

Continuity of Traditional Retail Businesses

Rina Masruroh Universitas Kuningan

[email protected]

Abstract. Today the business is growing rapidly minimarket with the development

of socio-economic conditions of society, and changes in value systems that result in

changes to the pattern of life and needs of the community. In meeting the needs and

desires, people tend to prefer a wide range of modern facilities expenditures. Thus

increasing the number of modern minimarket store increasingly cornered the

existence of traditional retail stores are stand-alone and based on social economy.

This study aimed to analyze the changes in turnover and market traditional retail

stores before and after the modern mini-market retail in the vicinity. To achieve

these objectives, conducted survey research approach, this study uses primary and

secondary data by distributing interviews and questionnaires to 40 respondents

traditional retail store owners in the district of Kuningan which is selected by

probabiliy sampling. Deskriptif qualitative were used to analize this study. Based

on the survey results revealed that there are significant differences between turnover

and market traditional retail stores before and after the modern minimarket in the

vicinity. This shows that the presence of modern retail stores provide a decrease in

turnover and customers impact for traditional retail stores. But the research also

shows that traditional retail stores that improve the quality of services and facilities

are not affected by the presence of modern retail stores in the vicinity.

Keywords: modern mini-market retail, traditional retail

156




Combined Loadings and Cross-Dimensional Loadings

Timeliness of Presentation of Financial Statements of

Local Government

Iskandar Muda1, Abikusno Dharsuky2, Hasan Sakti Siregar3 and Isfenti

Sadalia4 1,2,3,4Faculty (School) of Economic and Business, University of Sumatera

Utara Jl. Prof. TM Hanafiah SH No.12 Medan-20155


Abstract. This study examines the pattern of readiness dimensional accuracy of

financial statements of local government in North Sumatra with a routine pattern of

two (2) months after the fiscal year ends and patterns of at least 3 (three) months

after the fiscal year ends. This type of research is explanatory survey with

quantitative methods. The population and the sample used is of local government

officials serving local government financial reports. Combined Analysis And Cross-

Loadings Loadings are used with statistical tools WarpPLS. The results showed that

there was a pattern that varies above dimensional accuracy of the financial

statements of local government in North Sumatra.


157



Self-Giving as Spiritual Dimension in Leadership

Arcadius Benawa1, Nuah Tarigan2, Sukron Makmun3 1,2,3Bina Nusantara University, Jakarta, Indonesia


[email protected]

Abstract. This article aims to show that today it is very important to consider the

spiritual dimension in leadership, because the absence of the spiritual dimension

makes it impossible for a human to evolve. As the leader, whoever should be

accountable is not only on the horizontal level and at the vertical level as well.

Phenomenological studies and literature about the practice of leadership are faced

with a number of theories about leadership and then synthesized into more whole

leadership rather than just to brand a leadership itself. Based on the assumption a

leader is merely a sociological problem that needs to be completed with a spiritual

dimension, while in its historical development of leadership, it is never excluded

from the spiritual dimension. This article concludes that self-giving as a spiritual

dimension in leadership will give more benefit to develop the life system as well as

the purpose of leadership itself rather than the apparent leadership, which actually

hurts or even manipulate the members for the sake of egoistic the leader and their

inner circle. Therefore, it is very important for education to teach self-giving as a

spiritual dimension to all students of the World, especially in Asia.

Keywords: self-giving, leadership, spiritual dimension



158


Material Engineering Presentation Code: B-05-08


A Numerical Model of Seawater Volume and Velocity

Dynamic for Marine Currents Power Plant in the

Bangka Strait, North Sulawesi, Indonesia

P T D Rompas*1, H Taunaumang2, and F J Sangari3

1Departemen PendidikanTeknologiInformasidanKomunikasi,

UniversitasNegeri Manado, Tondano 95618,Indonesia 2Departemen Fisika, UniversitasNegeri Manado, Tondano 95618,Indonesia 3Departemen PendidikanTeknikElektro, UniversitasNegeri Manado,

Tondano 95618,Indonesia


Abstract. One of equipment as prime movers in the marine current power plant is

turbine. Marine current turbines require a data of marine currents velocity in its

design. The objective of this study was toget the velocities distribution ofmarine

currents in the Bangka strait. The method used survey, observation, and

measurement in the Bangka strait. The data of seawater density conducted

measurement in the Bangka strait. The data of width and depth of the strait collected

from the map of Bangka strait and its depth of the sea. Problem solving of the study

used a numerical model. The velocities distribution ofmarine current obtained from

anumerical modelin the form ofnumericalprogram. The results showed that the

velocities distribution at seawater column when low and high tide currents which

the maximum happened at 0.1 Sv were 0-0.9 and 0-1.0 m/s respectively, while at

0.3 Sv were 0-2.7 and 0-3.0 m/s respectively. The results will be a product in

analyzing the potential kinetic energy that used to design profile of the turbines as

prime mover for marine currents power plant in the Bangka strait, North Sulawesi,

Indonesia.



159



Identification of the Quality Spot Welding Used Non

Destructive Test-Ultrasonic Testing: (Effect of Welding

Time)

1)Agus Sifa, 2)Tito Endramawan, 3)Badruzzaman 1,2,3)PoliteknikNegeriIndramayu


Abstract. Resistance Spot Welding (RSW) is frequently used as one way of welding

is used in the manufacturing process, especially in the automotive industry

[4][5][6][7]. Several parameters influence the process of welding points. To

determine the quality of a welding job needs to be tested, either by damaging or

testing without damage, in this study conducted experimental testing the quality of

welding or identify quality of the nugget by using Non-Destructive Test (NDT) –

Ultrasonic Testing (UT), in which the identification of the quality of the welding is

done with parameter thickness of worksheet after welding using NDT-UT with use

same material worksheet and have more thickness of worksheet, the thickness of the

worksheet single plate 1mm, with the capability of propagation Ultrasonic Testing

(UT) standard limited> 3 mm [1], welding process parameters such as the time

difference between 1-10s and the welding current of 8 KV, visually Heat Affected

Zone ( HAZ ) have different results due to the length of time of welding. UT uses a

probe that is used with a frequency of 4 MHz , diameter 10 mm , range 100 and the

couplant used is oil . Identification techniques using drop 6dB, with sound velocity

2267 m / s of Fe , with the result that the effect of the Welding time affect the size of

the HAZ , identification with the lowest time 1s show results capable identified

joined through NDT - UT .

Keywords: Spot Weld, Non Destructive Test, Thickness, Quality, Welding Time


160




Mechanical Properties Studies of Components

Formulation for Mixing Process Contain of

Polypropylene, Polyethylene, and Aluminium Powder

Alfian Hamsi1,Riswan Dinzi2

1Mechanical Engineering, University of Sumatera Utara, Medan 20155,

Indonesia 2Electrical Engineering, University of Sumatera Utara, Medan 20155,

Indonesia


Abstract. Certain powder and others components can induce toxic reactions if not

properly handled in the mixing stage. During handling,the small particles can

become airborne and be trapped in the lungs,Another concern is inhomogeneities in

the mixing process. Uniform quantities of the particles of the components are

needed in all portions of the mixture.This paper reports the results of mechanical

properties studies of mixing three components formulation for mixing process.

Contain of Polyethylene (PE),Polyprophylene (PP) and Aluminium Powder.

Powder mixer,autodesk mold flow and computer based on excell method was

carried out to study the influence of each formulation component on the flow %,PE

20% and Aluminium powder 2%. Macroscopic optic and macro photo was carried

out to identify the homogenity of mixing,tensile test for identify the strength of

component after mixing. Finally the optimal tensile test with composition PP

785,PE 20% and Aluminium powder 2% at speed 52 rpm,temperature 1500C, the

tensile strength 20,92 N/mm2. At temperature 1600C,speed 100 rpm the optimum

tensile strength 17,91 N/mm2. The result of simulation autodesk mold flow adviser

the filling time 6 seconds.otherwise on manual hot hidraulic press the time of filling

10 seconds.

Keywords: Temperature, speed, polyethylene, polyprophylene, aluminium powder




161



Preparation and Characterization of Cellulose

Microcrystalline (Mcc) from Fiber of Empty Fruit

Bunch Palm Oil

Halimatuddahliana Nasution1, Yurnaliza2, Veronicha1,

Irmadani1 and Suayba Sitompul1 1Department of Chemical Engineering, Faculty of Engineering, University

of Sumatera Utara, North Sumatra, Medan, 20155, Indonesia 2Department of Biology, Faculty of Mathematics and Natural Sciences,

University of Sumatera Utara, North Sumatra, Medan, 20155, Indonesia


Abstract. Alpha cellulose which was isolated from cellulose of fiber empty fruit

bunch palm oil was hidrolized with hydrochloric acid (2,5N) at 80oC to produce

microcrystalline cellulose (MCC). Microcrystalline cellulose is an important

additional ingredient in the pharmaceutical, food, cosmetics, and structural

composites. In this study, MCC, alpha cellulose, and cellulose were characterized

and thereafter were compared. Characterizations were made using some equipment

such as x-ray diffraction (XRD), Fourier transform infrared (FTIR), scanning

electron microscopy (SEM) and thermogravimetry analyzer (TGA). X-ray

diffraction and infrared spectroscopy were studied to determine crystallinity and

molecular structure of MCC, where scanning electron microscopy images were

conducted for information about morfology of MCC. Meanwhile, thermal resistance

of MCC was determined using thermogravimetry analyzer (TGA). From XRD and

FTIR, the obtained results showed that the crystalline part was traced on MCC,

where the –OH and C-O groups tended to reduced as alpha cellulose has changed to

MCC. From SEM the image showed the reduction of particle size of MCC, while

the thermal resistance of MCC was found lower as compared with cellulose and

alpha cellulose as well, which was attributed to the lower molecular weight of MCC.

Keywords:microcrystalline cellulose, alpha cellulose, crystallinity, thermal

resistance

162




The Influence of Chicken Egg Shell as Fillers on

Biocomposite Acrylic Resin for Denture Based

Maulida Lubis1*, M. Hendra S. Ginting1, Nisaul Fadilah

Dalimunthe1**,Dede Mhd Taher Hasibuan1, and Sumadhi

Sastrodihardjo2

1Department of Chemical Engineering, Faculty of Engineering University

of Sumatera Utara, Jl. AlmamaterKampus USU Medan 20155 21Faculty of Dentistry, University of Sumatera Utara, Jl.

AlmamaterKampus USU Medan 20155


Abstract. This research was conducted to discover the influence of the addition of

chicken egg shells microparticle as filleron the mechanical properties such as

modulus of elasticity, modulus of rapture and particle size analysis on biocomposite

acrylic resin for denturebased.The raw materials used in this research were acrylic

resin, egg shell, cold mold seals, gypsum, Vaseline and wax.The process of making

biocomposite acrylic resin for denturebased with mix the acrylic resin in ratio 2:1

(w/w). Then added the microparticle filler 0,10,20,30 (%w) to mold and boil in 75ºC

for 90 minutes and increase the temperature to 90 ºC for 30 minutes. Took the

sample and let it dried. The results of researchshowed the increase of modulus

elasticity and modulus of rapture. The modulus of elasticity showed a very

significant increase by adding fillers 10% of 2.123GPa, which was only 1.932 GPa

without adding the filler of chicken eggshells. For modulus of rapture showed the

increase by adding fillers 20% of 48,311MPa, which was only 46,865GPa without

adding the filler of chicken eggshells.




163



Simulation of Mechanical Stress on Stainless Steel for

Pb-Bi Corrosion Test by Using ABAQUS

D Irwanto1*, A P A Mustari1, and B ABudiman2 1Nuclear Physics and Biophysics, Faculty of Mathematics and Natural

Sciences, Institut Teknologi Bandung, Ganesha Street No 10, Bandung

40132, Indonesia 2Mechanical Engineering Department, InstitutTeknologi Bandung, Ganesha

Street No 10, Bandung 40132, Indonesia


Abstract. Pb-Bi eutectic with its advantageous is proposed to be utilized as a coolant

in the GEN IV type of reactor. However, high temperature corrosion when contact

with stainless steels is one of the issues of Pb-Bi eutectic utilization. It is known

that in the environment of high temperature Pb-Bi, mechanical strength of stainless

steel may decrease. Thus, simulation of mechanical stress working on stainless steel

during in-situ bending test by using ABAQUS was conducted. Several bending

degrees were simulated at high temperature to obtain the mechanical stress

information. Temperature condition was strongly affect the stress vs. displacement

profile. The reported mechanical strength reduction percentage was used to draw

predicted mechanical stress under high temperature Pb-Bi environment.

164




A Model of Small Capacity Power Plant in Tateli

Village, North Sulawesi

F J Sangari* and P T D Rompas

Universitas Negeri Manado, Tondano 95618, Indonesia


Abstract. The electricity supply in North Sulawesi is still very limited so ubiquitous

electric current outage. It makes rural communities have problems in life because

most uses electrical energy. One of the solutions is a model of power plants to

supply electricity in Tateli village, Minahasa, North Sulawesi, Indonesia. The

objective of this research is to get the model that generate electrical energy for

household needs through power plant that using a model of Pico-hydro with cross

flow turbine in Tateli village. The method used the study of literature, survey the

construction site of the power plant and the characteristics of the location being a

place of research, analysis of hydropower ability and analyzing costs of power plant.

The result showed that the design model of cross flow turbines used in pico-hydro

hydropower installations is connected to a generator to produce electrical energy

maximum of 3.29 kW for household needs. This analyze will be propose to local

government of Minahasa, North Sulawesi, Indonesia to be followed.



165

Material Science Presentation Code: A-03-06


Tunneling Current of Electron in Armchair Graphene

Nanoribbon Bipolar Transistor Model Using Transfer

Matrix Method

A K Fahmi, L Hasanah, D Rusdiana, A Aminudin and E Suhendi#

Physics of Electronic Materials and Modeling Research Division, Faculty

of Mathematics and Natural Sciences Education, Universitas Pendidikan

Indonesia, Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia


Abstract. The tunneling current of n-p-n bipolar junction transistor AGNR-based is

modeled with semi-numerical method. The exponential solution from Schrödinger

equation is used and solved analytically. The potential profile of n-p-n BJT divided

into several segments in the numerical method. Then, the solved analytical result is

used in the numerical method to compute the electron transmittance. Transfer Matrix

Method (TMM) is the numerical method used to compute the electron transmittance.

From the calculated transmittance the tunneling current can be computed by using

Landauer formula with aid of Gauss-Legendre Quadrature (GLQ). Next, the

tunneling current is computed with several change of variables which are base-

emitter voltage (VBE), base-collector voltage (VBC), temperature and the AGNR’s

width. The computed tunneling current shows that the larger value of applied

voltage for both VBE and VBC results in larger value of tunneling current. At the

lower temperature, the current is larger. The computed tunneling current shows that

at wider width of AGNR, the current is also larger. This is due to the decreased band-gap energy (Eg) because of the wider width of AGNR.

166




The Mechanical Properties and Microstructure

Characters of Hybrid Composite Geopolymers-

Pineapple Fiber Leaves (PFL)

Nursyamsih Amalia1, Syarif Hidayatullah2, Nurfadilla3, and Subaer4

Laboratorium Fisika Material, Jurusan Fisika, Universitas Negeri




Abstract. The objective of this research is to study the influence of organic fibers

on the mechanical properties and microstructure characters of hybrid composite

geopolymers-pineapple fibers (PFL). Geopolymers were synthesized by using alkali

activated of class C-fly ash added manually with short pineapple fiber leaves (PFL)

and then cured at 60ºC for 1 hour. The resulting composites were stored in open air

for 28 days prior to mechanical and microstructure characterizations. The samples

were subjected to compressive and flexural strength measurements, heat resistance

as well as acid attack (1M H2SO4 solution). The microstructure of the composites

were examined by using Scanning Electron Microscopy-Energy Dispersive

Spectroscopy (SEM-EDS). The measurement showed that the addition of pineapple

fibers was able to improve the compressive and flexural strength of geopolymers.

The resulting hybrid composites were able to resist fire to a maximum temperature

of 1500ºC. SEM examination showed the presence of good bond between

geopolymer matrix and pineapple fibers. It was also found that there were no

chemical constituents of geopolymers leached out during acid liquid treatment. It is

concluded that hybrid composite geopolymers-pineapple fibers are potential

composites for wide range applications.


167



Development of Geopolymers Composite Based on

Metakaolin-Nano ZnO ForAntibacterial Application

Qadry Annisa Nur1, Nur Ungki Sari2, Harianti3, and Subaer4

1Laboratorium Fisika Material, Jurusan Fisika, Universitas Negeri




Abstract. A research on the development of geopolymers composite based on

metakaolin-nano ZnO for antibacterial application has been conducted. The aim of

this study was to investigate the influence of nano ZnO addition in the production

of antibacterial composite. Nano ZnO was produced through precipitation of ZnSO4

in NaOH solution. The composites were developed through alkali activation of

metakaolin added with nano ZnO at various concentrations, namely 5%, 10%, &

15% relative to the weight of metakaolin. The structure and the phase of the starting

and the resulting materials were examined by using x-ray diffraction (XRD). The

resulting composites were immersed in water taken from a well for several days to

investigate their antibacterial properties. The morphology and the presence of

bacteria on the surface of composites were investigated by using scanning electron

microscopy (SEM). It was found that geopolymers composites based on

metakaolin-nano ZnO is an effective composite to limit the growth of the bacteria.

168




Characteristics of commercial SiC and Synthetic SiC as

an Aggregate in Geopolymer Composites

Resky Irfanita1,2, Kharisma Noor Afifah2 , Asrianti3 and Subaer 4

Laboratorium Fisika Material, Jurusan Fisika, Universitas Negeri


Jurusan Fisika, Institut Teknologi Sepuluh Nopember, Indonesia, Kampus

ITS Sukolilo, Surabaya, Indonesia



Abstract. This main objective of this study is to investigate the effect silicon carbide

(SiC) as an aggregate on the mechanical strength and microstructure of the

geopolymer composites. The geopolymers binder were produced by using alkaline

activation method of metakaolin and cured at 70oC for 2 hours. In this study

commercial and synthetic SiC were used as aggregate to produce composite

structure. Synthetic SiC was produced from rice husk ash and coconut shell carbon

calcined at 750oC for 2 hours. The addition of SiC in geopolymers paste was varied

from 0.25g, 0.50g to 0.75g to form geopolymers composites. The chemical

compositions and crystallinity level of SiC and the resulting composites were

measured by means of Rigaku MiniFlexII X-Ray Diffraction (XRD). The

microstructure of SiC and the composites were examined by using Tescan Vega3SB

Scanning Electron Microscopy (SEM). The physical and mechanical properties of

the samples were determined based on apparent porosity, bulk density, and three

bending flexural strength measurements. The results showed that the commercial

and synthetic SiC were effectively produced geopolymers composites with different microstructure, physical and mechanical strength.



169



Development of Coconut Trunk Fiber Geopolymer

Hybrid Composite for Structural Engineering Materials

Fajria Amalia1, Nur Akifah2 , Nurfadilla3, and Subaer 4

1Laboratorium Fisika Material, Jurusan Fisika, Universitas Negeri Makassar,

Indonesia Jl. Daeng Tata Raya, Makassar, Indonesia



Abstract. A research on the influence of coconut fiber trunk on mechanical properties

based on fly ash has been conducted. The aims of this study was to examine the

mechanical properties of geopolymer composites by varrying the concentration of

coconut trunk fiber. Geopolymer synthesized by alkali activated

(NaOH+H2O+Na2O.3SiO2) and cured at the temperature 700C for one hour. Specimens

were synthesized into 5 different mass of fiber 0 g, 0.25 g, 0.50 g, 0.75 g, and 1.00 g

keeping fly ash constant. The highest compressive strength was 89.44 MPa for specimen

added with 0.50 g of fiber. The highest flexural strength was 7.64 MPa for the same

sample. The interfacial transition zone (ITZ) between the matrix of geopolymers and

coconut fiber was conducted by using Scanning Electron Microscopy-Energy Dispersive

Spectroscopy (SEM-EDS). The chemical composition of the specimen was examined

by using X-Ray Diffraction (XRD). The thermal properties of coconut fiber trunk was

analyzed using Differential Scanning Calorimetry (DSC). It was found that coconut fiber

was able to improve the mechanical and microstructure properties of geopolymers

composites.

170




Post-treatment Effect of Particleboard on Dimensional

Stability and Durability Properties of Particleboard

Made from Sorghum Bagasse

A H Iswanto1*, T Sucipto1, S SD Nadeak1, W Fatriasari2

1 Faculty of Forestry, North Sumatera University, Medan, Indonesia 2 Research Center for Biomaterials LIPI, Bogor, Indonesia


Abstract. In general, the weakness of particleboard using urea formaldehyde (UF)

resin has a low dimensional stability. This reasearch intends to improve its

properties by post-treatment technique using several water repellent materials. The

post-treatment effect on dimensional stability and durability properties of

particleboard against to subterranean and dry termites has been evaluated. Sample

was dipped into water reppelent solution namely parafin, palm oil, silicon and water

proof for 3 minutes. Furthermore, they were oven dried at 50oC for 24 hours. The

results showed that the density varied of 0.60 to 0.74 g/cm3. The post-treatment of

particleboard increases the density value. Water absorption and thickness swelling

of board were varied of 29.35% to 114.99% and 13.23 to 37.31%, respectively. This

treatment also improved up the thickness swelling to 65%. The best durability of

board to subterranean and dry termite attack has found on silicon and waterproof

treatment, respectively.



171



Fixation Of Soft-Inner Part Of Oil Palm Trunk By Close

System Compression Method

Rudi Hartono1*), Wahyu Dwianto2, Imam Wahyudi3, Fauzi Febrianto3,

Toshiro Morooka4 1 Lecturer, Faculty of Forestry, University of Sumatera Utara, Jalan

Dr. Mansur Medan, 20135 2 Research Center for Biomaterials, Indonesian Institute of Sciences,

Jl. Raya Bogor Km.46, Cibinong Bogor 16911, Indonesia 3 Proffesor, Faculty of Forestry, Bogor Agriculture University,

Darmaga, Bogor, 6000 4 Research Institute for Sustainable Humanosphere, Kyoto University,

Japan


Abstract. Compression by closes system compression (CSC) improved quality of

the soft-inner part of oil palm trunk (S-OPT). The problem of compressed-wood

was spring back or recovery of set, if it was exposed to moisture content. The

objective of these study were to evaluate the recovery of set (RS) and weight loss

(WL) of S-OPT by CSC. These methods were compared with heat treatment (HT)

and steam treatment (ST). Density of S-OPT was 0.3 g/cm3. All samples were

compressed to compression ratio of 50%. The compression of HT method used the

temperatur of 120, 140, 160, 180 and 200 °C for 0, 10, 30, 60 and 180 minutes; and

ST method used temperature of 120, 140, 160, 170 and 180 °C for 0, 5, 10 and 30

minute; while CSC method used temperature of 120, 140, 160, 180 and 200 °C for

0, 10, 20, 30 and 40 minutes. The results showed that the temperature and

compression time contributed to the RS and WL value for all methods. Increasing

compression temperature and time leads to decreased the RS value and to increased

the WL value. The lower RS value indicated that S-OPT fixation would be better or

high dimensional stability. Fixation of S-OPT by ST method was achieved at

temperature of 170 °C for 30 min, CSC at temperature of 180 °C for 30 min, while

HT method has not fixated until 200 °C for 180 min.

172




The Feasibility of Sugar Palm (Arenga pinnata) Trunk

for Raw Material of Parquet (Wood Flooring)

Arif Nuryawan*, Andro Tarigan, Luthfi Hakim

Department of Forestry, Faculty of Forestry, University of Sumatera Utara

Jl.Tri Dharma Ujung No.1 Kampus USU, Medan, North Sumatera,

Indonesia 20155


Abstract. In the market, parquet was made from high density wood such as teak,

merbau, kempas, ulin, oak, lime, maple, or other high density wood. Parquet has

been used for flooring in specific buildings, for instance sport hall, library,

commercial building (i.e hotel lobby, hypermarket), and office building. Because of

the scarcity of high density wood nowadays and in order to find out the alternative

material for wood flooring, the utilization of sugar palm trunk was considered. In

this contribution, unproductive sugar palm tree was cut down and divided into three

sections using chain saw, namely bottom, middle, and tip. For each section, physical

and mechanical samples testing were made according to British Standard 373:1957

for small clear specimen. Investigation of both properties was done in ambient

temperature with at least three replications. Instron UTM (Universal Testing

Machine) was used to evaluate the mechanical properties. Results of the physical

testing (density, moisture content and tangential shrinkage) showed the entire trunk

was suitable for raw material of parquet. However, the results of mechanical testing

(hardness, MOE/modulus of elasticity, MOR/modulus of rupture, and compression

perpendicular to grain) showed only bottom and middle parts were suitable for raw

material of parquet while the upper part was vice versa. Keywords: parquet (wood

flooring), physical and mechanical properties, sugar palm trunk.


173



Improved Electrical Properties of Chitosan Based

Acetone Sensor by Adding Carboxymethylcellulose

(CMC)

Tulus Ikhsan Nasutiona,b*, Rica Asrosaa, Yetty Machrinac, Irwana

Nainggoland, Muhammad Balyana, Ridho Rumansyahb aPhysics Department, Faculty of Mathematics and Natural Science,

University of Sumatera Utara, Medan 20155, Sumatera Utara, Indonesia

bIntegrated Laboratory of physics, University of Sumatera Utara, Medan

20155, Sumatera Utara, Indonesia cPhysiology Department, Medical Faculty, University of Sumatera Utara,

Medan 20155, Sumatera Utara, Indonesia dSchool of Materials Engineering, University of Malaysia Perlis, Jejawi

02600, Perlis, Malaysia


Abstract. The acetone sensors based on chitosan have been successfully fabricated

using an electrochemical deposition method. The physical and electrical

characterizations of chitosan film were carried out to observe the performance of the

sensor. The results showed that the chitosan based acetone sensors exhibited fast

response, complete recovery and good stability. However, the improvement of

chitosan films is still necessary due to the poor surface, low repeatability and

reproducibility. Therefore, the objective of this study is to modify chitosan film

performance by adding CMC into chitosan solution with the variation of 0.01, 0.05,

0.1 and 0.5 g. The characterization of chitosan and chitosan-CMC films were

investigated using PSA, optic microscope, DTA and FTIR. While the electrical

properties were observed by exposing the sensors to acetone gas for various

concentrations. The results showed that acetone sensor based on chitosan-0.05 w/v

CMC has the best physical and electrical properties such as homogenous surface,

high thermal property, fast response, complete recovery, good repeatability and

excellent reproducibility. Thus, the addition of CMC can improve the performance

of chitosan based acetone sensors.

174


Mathematics Presentation Code: A-01-01


Optimization on Paddy Crops in Central Java (with

Solver, SVD on Least Square and ACO (Ant Colony

Algorithm))

H.A. Parhusip1,a, S. Trihandaru1,b, B. Susanto1,c, S.Y.J. Prasetyo2, Y. H.

Agus3,d, B.H. Simanjuntak3,e 1Science and Mathematics Faculty, 2 Informatics Technology Faculty,

3Agriculture Faculty, Universitas Kristen Satya Wacana, Salatiga,

Indonesia

E-mail: [email protected], [email protected],[email protected],2sri.yuliy

[email protected], [email protected], [email protected]

Abstract. Several algorithms and objective functions on paddy crops have been

studied to get optimal paddy crops in Central Java based on the data given from

Surakarta and Boyolali. The algorithms are linear solver, least square and Ant

Colony Algorithms (ACO) to develop optimization procedures on paddy crops

modelled with Modified GSTAR (Generalized Space-Time Autoregressive) and

nonlinear models where the nonlinear models are quadratic and power functions.

The studied data contain paddy crops from Surakarta and Boyolali determining the

best period of planting in the year 1992-2012 for Surakarta where 3 periods for

planting are known and the optimal amount of paddy crops in Boyolali in the year

2008-2013. Having these analyses may guide the local agriculture government to

give a decision on rice sustainability in its region. The best period for planting in

Surakarta is observed, i.e. the best period is in September-December based on the

data 1992-2012 by considering the planting area, the cropping area, and the paddy

crops are the most important factors to be taken into account. As a result, we can

refer the paddy crops in this best period (about 60.4 thousand tons per year) as the

optimal results in 1992-2012 where the used objective function is quadratic.

According to the research, the optimal paddy crops in Boyolali about 280 thousand

tons per year where the studied factors are the amount of rainfalls, the harvested area

and the paddy crops in 2008-2013. In this case, linear and power functions are

studied to be the objective functions. Compared to all studied algorithms, the linear

solver is still recommended to be an optimization tool for a local agriculture

government to predict paddy crops in future.


175

Mathematics Presentation Code: B-08-11


Modeling of Sedimentation Process in the Irrigation

Channel

Tulus1 *, and M Situmorang1

1Department of Mathematics, University of Sumatera Utara, Jl. dr. Mansur

Kampus USU Medan 20155


Abstract. Irrigation has been a central feature of agriculture for over 5,000 years

and is the method in which water is supplied to plants at regular intervals for

agriculture. Channel irrigation allows irrigation over large areas, with large volumes

of water. The content of the water in channel from the river generally contain a lot

of material that can precipitate during the water flood the area of agriculture. This

paper is to derive a mathematical model of sedimentation processes in the irrigation

channel. The model is analysed using Finite Element Method with respect to the

geometry of the channel in the district Galang, Sumatera Utara Province. From a

computational point of view, results have shown the importance streamlines of the mixture velocity and the dispersed phase volume fraction.

176


Mathematics Presentation Code: A-01-03


Didactical Design Material Units of Distance and Speed

to Developed Mathematical Connection in Elementary

School

Ridha Raudotul Jannah1,*, Seni Apriliya2, Karlimah3

1 ,2, 3 Departement of Elementary Teacher Education, UPI Tasikmalaya

Campus, Jl.Dadaha no. 18, Tasikmalaya, Indonesia.


Abstract. This study aims to develop alternative instructional design based of

barries learning which identified by developing mathematical connection

capabilities to the material unit of distance and speed. The research was conducted

in the fifth grade elementary school Instructional design is complemented with a

hypothetical learning trajectory in the form of a pedagogical didactic anticipation.

The method used is descriptive method with qualitative approach. Techniques data

collection used were observation, interviews, and documentation. The instrument

used the researchers themselves are equipped with an instrument written test. The

data were analyzed qualitatively to determine the student learning obstacles, then

arrange hypothetical learning trajectory and pedagogical didactic anticipation.

Learning obstacle are identified, it is learning obstacle related the connections

between mathematical topics, learning obstacle related with other disciplines, and

learning obstacle related with everyday life. The results of this research are

improvement and development of didactic design in mathematics which has

activities mathematical connection to the material unit of distance and speed in

elementary school. The learning activities are carried out is using varied methods

include method lectures, demonstrations, practice and exercise, as well as using the

modified instructional media.

Keywords: didactical design, learning obstacle, units of distance and speed,

mathematical connection.


177

Mechanical Engineering Presentation Code: B-01-01


Displacement of a Free Tyre in Natural Frequenciesto

Determine Noise Structure

M. Sabri

North Sumatera University, Medan Indonesia


Abstract: Tyre vibration represents the main source to generate the noise for light

vehicles. The physical aspects which are involved in studying tyre noise are tyre

vibrations and structure borne sound. In this paper, radial tyre displacements have

been investigated for tyre vibration characterization in natural frequency. A

cylindrical shell model has been used to analyse flexural wave’s propagation. Two

important features of flexural wave propagation on a cylindrical shell were analysed,

lower order modes of the second and third radial mode sets are in the range where

the membrane effects in sidewall are relatively large. The tread band and sidewall

responses of the tyre have been simulated and compared. As a result, the

concentration of displacements has been observed in the vicinity of tyre structure.

For the simulation purposes, frequency analysis has been performed, showing the

influence of the rotating speed on the vibrations level and natural frequency content.

The study gives a physical insight on generation mechanism of tyre radial vibrations.

Keywords: natural frequency, displacement, tyre vibration, noise

178




Numerical Study on Natural Vacuum Solar Desalination

System with Varying Heat Source Temperature

Himsar Ambarita

Sustainable Energy Research Centre, Faculty of Engineering University of

Sumatera Utara, Jl. AlmamaterKampus USU Medan 20155


Abstract. A natural vacuum desalination unit with varying low grade heat source

temperature is investigated numerically. The objective is to explore the effects of

the variable temperature of the low grade heat source on performances and

characteristics of the desalination unit. The specifications of the desalination unit

are naturally vacuumed with surface area of seawater in evaporator and heating coil

are 0.2 m2 and 0.188 m2, respectively. Temperature of the heating coil is simulated

based on the solar radiation in the Medan city. A program to solve the governing

equations in forward time step marching technique is developed. Temperature of

the evaporator, fresh water production rate, and thermal efficiency of the

desalination unit are analysed. Simulation is performed for 9 hours, it starts from

8.00 and finishes at 17.00 of local time. The results show that, the desalination unit

with operation time of 9 hours can produce 5.705 L of freshwater and thermal

efficiency is 81.8 %. This reveals that varying temperature of the heat source of

natural vacuum desalination unit shows better performance in comparison with

constant temperature of the heat source.


179



Performance and Emissions of a Small Compression

Ignition Engine Run on Dual-Fuel Mode (Diesel-Raw

Biogas)

H Ambarita1*, E P Sinulingga2, M KM Nasution3, H Kawai4

1Sustainable Energy Research Centre, Faculty of Engineering University of

Sumatera Utara, Jl. AlmamaterKampus USU Medan 20155, Indonesia 2Electrical Engineering, Faculty of Engineering University of Sumatera

Utara, Jl. AlmamaterKampus USU Medan 20155, Indonesia 3Information Technology Department, Fasilkom-TI University of Sumatera

Utara, Jl. Universitas Padang Bulan 20155, Indonesia 4Mechanical Engineering, Muroran Institute of Technology, 27-1

Mizumotocho, Muroran Hokkaido 050-0071, Japan


Abstract. In this work, a compression ignition (CI) engine is tested in dual-fuel

mode (Diesel-Raw biogas). The objective is to examine the performance and

emission characteristics of the engine when some of the diesel oil is replaced by

biogas. The specifications of the CI engine are air cooled single horizontal cylinder,

four strokes, and maximum output power of 4.86 kW. It is coupled with a

synchronous three phase generator. The load, engine revolution, and biogas flow

rate are varied from 600 W to 1500 W, 1000 rpm to 1500 rpm, 0 to 6 L/minute,

respectively. The electric power, specific fuel consumption, thermal efficiency, gas

emission, and diesel replacementratio are analyzed. The results show that there is

no significant difference of the powerresulted by CI run on dual-fuel mode in

comparison with pure diesel mode. However, the specific fuel consumption and

efficiency decrease significantly as biogas flow rate increases. On the other hand,

emission of the engine on dual-fuel mode is better. The main conclusion can be

drawn is that CI engine without significant modification can be operated perfectly in dual-fuel mode and diesel oil consumption can be decreasedup to 87.5%.

180




The Influence of Mixed Composition and Hole Mould on

the Quality of Chicken Feed

SyaharuddinRasyid, Tri AgusSusanto, and RusdiNur

Mechanical Engineering Department, PoliteknikNegeri Ujung Pandang, Jl.

PerintisKemerdekaan Km. 10 Tamalanrea Makassar, 90245 Indonesia


Abstract. This study aims to determine the effect of feed mixturecomposition and

shape of mould hole on the quality pellets using a pellet moulding machine with the

roller wheel system. Methods of testing were performed to obtain the composition

of the feed mixture that was optimal. The method was following: 250 grams of feed

ingredients are added to the adhesive (starch) of 50 grams and then mixed with warm

water (± 90°C) in quantities of 50, 100, 150, 200, 250 cc.Furthermore, the feed

mixture materials printed on pellet machines with roller wheel system. Parameter

testing is 400 rpm engine rev diameter mould hole 5 mm, and the shape of the hole

to a second print. The test results on the optimal material composition testing the

feed mixture will be used as a parameter to the next test is a variation form of holes.

Measuring the quality of feed pellets based heavily shaped pellet intact and non-

intact. A ratio of feed ingredients best to produce pellets occurred in the composition

of the feed mixture of 250 grams of feed, 50 grams of adhesive, and 250 grams of

warm water with percentage shaped feed pellets of 91%. While the best pellet

quality resulting from pellet machine roller wheel system occurs in the form of mould 2nd hole with a percentage of 90% pellets.


181



Performance and Characteristics of Heat Pump Clothes

Drier

Himsar Ambarita1, Dian Morfi Nasution2*, Safri Gunawan3, Abdul

Halim Nasution1


Indonesia 2Mechanical Engineering, SekolahTinggiTeknikHarapan, Medan 20216,

Indonesia 3Mechanical Engineering, SekolahTinggiTeknologiSinarHusni, Medan

20373, Indonesia


Abstract. In this paper, a study of clothes drying using a heat pump drier has been

carried out. The objective is to examine the performance and drying characteristics

of the heat pump clothes dryer. The result of performances and drying

characteristics were compared with waste heat drying system of split-type

residential air conditioner (RAC). A drying chamber with volume 1 m3 integrated

with heat pump component had been designed and fabricated. The heat pump

operated by vapor compression cycle with power input of 800W and refrigerant R22

as a working fluid. The clothes dried made of pure cotton with initial weight varied

from 3.00 kg, 5.25 kg, and 6.38 kg, respectively. The results shown that the drying

time and drying rate of heat pump drier are faster than waste heat drying system.

The average total performance of heat pump clothes drier is 6.56. On the other hand,

SMER which is obtained 1.492 kg/kWh. These values are lower than the SMER of

waste heat drying system which shown the average valueof 2.492 kg/kWh. In the

case of drying clothes, waste heat drying of RAC shows a better performance in

comparison with heat pump drying system.

Keywords: heat pump drier, clothes, waste heat, residential air conditioner

182


Mechanical Engineering Presentation Code B-01-06


Design and Construction Multi Output Power

Transmition with Single Prime Mover on Agricultural

Products Machine

ViktusKolo Koten1, Cherlly Elisabeth Tanamal2

1Departement of Mechanical Engineering, Faculty of Engineering,

University of Atma Jaya, Makassar.

2Faculty of Engineering, University of Atma Jaya, Makassar.


Abstract. Manufacturing agricultural products by the farmers, people or person

who involve in medium industry, small industry, and households industry still be

done in separately. Although the power on primemover is enough, in operations,

primemover was only to move one of several agricultural products machine. This

study attempts to design and construct power transmition multi output with single

primemover; a single construction that allows primemover move some agricultur

products machine in the same or not.This study begins with the determination of

production capacity and the power to destroy products, the determination of

resources and rotation, normalization of resources and rotation, the determination

of the type material used, the size determination of each machine elements,

construction machine elements, and assemble machine elements into a construction

multi output power transmition with single primemover on agricultural products

machine. The results show that with a input normalization 4 PK (2984 Watt ),

rotation 2000 rpm, the strength of material 60 kg/mm2, and several operating

consideration, thus obtained size of machine elements through calculation. Based

on the size, the machine elements is made through the use of some machine tools

and assembled to form a multi output power transmition with single primemover.

Keyword: Power transmition, agricultural products machine


183



Numerical Approach to Wood Pyrolysis in

Considerating Heat Transfer in Reactor Chamber

Muhammad Idris1 and Uun Novalia2

1 Lecturer of Mechanical Engineering in Sekolah Tinggi Teknik Harapan

Medan

2 Lecturer of Industrial Engineering in Sekolah Tinggi Teknik Harapan

Medan

E-mail: [email protected] Abstract. Pyrolysis is the decomposition process of solid biomass into gas, tar and

charcoal through thermochemical methods. The composition of biomass consists of

cellulose hemi cellulose and lignin, which each will decompose at different

temperatures. Currently pyrolysis has again become an important topic to be

discussed. Many researchers make and install the pyrolysis reactor to convert

biomass waste into clean energy hardware that can be used to help supply energy

that has a crisis. Additionally the clean energy derived from biomass waste is a

renewable energy, in addition to abundant source also reduce exhaust emissions of

fossil energy that causes global warming. Pyrolysis is a method that has long been

known by humans, but until now little is known about the phenomenon of the

pyrolysis process that occurs in the reactor. One of the Pyrolysis’s phenomena is the

heat transfer process from the temperature of the heat source in the reactor and heat

the solid waste of biomass. The solid waste of biomass question in this research is

rubber wood obtained from one of the company's home furnishings. Therefore, this

study aimed to describe the process of heat transfer in the reactor during the process.

ANSYS software was prepared to make the simulation of heat transfer phenomena

at the pyrolysis reactor. That's the numerical calculation carried out for 1200

seconds. Comparison of temperature performed at T1, T2 and T3 to ensure that

thermal conductivity is calculated by numerical accordance with experimental data.

The distribution of temperature in the reactor chamber specifies the picture that

excellent heat conduction effect of the wood near or attached to wooden

components, cellulose, hemicellulose and lignin down into gas.

Keyword: Pyrolysis, ANSYS, Heat Transfer

184




Experimental Study on Melting and Solidification of

Phase Change Material Thermal Storage

Himsar Ambarita1*, Ilmi Abdullah2, Chandra A Siregar 3,Ridho

Elranda TifosiSiregar1, Agistya D Ronowikarto1 1Mechanical Engineering, University of Sumatera Utara, Medan 20155,

Indonesia 2Mechanical Engineering, Medan Institute of Technology, Indonesia 3Mechanical Engineering, Muhammadiyah University of Sumatera Utara


Abstract. Melting and solidification process of Phase Change Materials (PCMs)

are investigated experimentally. The tested PCMs are Paraffin wax and Steric acid

which typically used for solar water heater. The objective is to explore the

characteristics of the PCM when it is being melted and solidified. The experiments

are performed in a glass box. One side of the box wall is heated while the opposite

wall is kept constant and other walls are insulated. Temperature of the heated wall

are kept constant at 80oC, 85oC, and 90oC, respectively. Every experiment is carried

out for 600 minutes. Temperatures are recorded and the melting and solidification

processes are pictured by using camera. The results show that the melting process

starts from the upper part of the thermal storage. In the solidification process, it

starts from the lower part of the thermal storage. As a thermal energy storage,

Paraffin wax is better than Steric acid. This is because Paraffin wax can store more

energy. At heat source temperature of 90oC, thermal energy stored by Paraffin wax

and Stearic acid is 61.84 kJ and 57.39 kJ, respectively. Thus it is better to used

Paraffin wax in the solar water heater as thermal energy storage.

Keywords: Thermal Energy Storage, PCM, Melting, Solidification


185



A Preliminarystudy on Designing and Testing of an

Absorption Refrigerationcyclepowered by Exhaustgas

of Combustionengin

F. H. Napitupulu1 *, F. A. Daulay1, Dedy P.M1, Denis1, Jecson1, 1Mechanical Engineering, Faculty of Engineering, University of Sumatera

Utara,

Jl. Almamater Kampus USU Medan 20155


Abstract. In order to recover the waste heat from the exhaust gas of a combustion

engine, an adsorption refrigeration cycle is proposed. This is a preliminary study on

design and testing of a prototype of absorption refrigeration cycle powered by an

internal combustion engine. The heat source of the cycle is a compression ignition

engine which generates 122.36 W of heat in generator of the cycle. The pairs of

absorbent and refrigerant are water and ammonia. Here the generator is made of a

shell and tube heat exchanger with number of tube and its length are 20 and 0.69 m,

respectively. In the experiments the exhaust gas, with a mass flow rate of 0.00016

kg/s, enters the generator at 110oC and leaves it at 72oC. Here, the solution is heated

from 30oC to 90oC. In the evaporator, the lowest temperature can be reached is

17.9oC and COP of the system is 0.45. The main conclusion can be drawn here is

that the proposed system can be used to recycle the waste heat and produced cooling.

However, the COP is still low.

186




Experimental Study on Performance of a Box Solar

Cooker with Flat Plate Collector to Boil Water

Tekad Sitepu1, Safri Gunawan2*, Dian Morfi Nasution3, Himsar

Ambarita1, Ridho Elranda Tifosi Siregar1, Agistya D Ronowikarto1


Indonesia 2Mechanical Engineering, Sekolah Tinggi Teknologi Sinar Husni, Medan

20373, Indonesia 3Mechanical Engineering, Sekolah Tinggi Teknik Harapan, Medan 20216,

Indonesia


Abstract. In this study, a flat plate type solar cooker is tested by exposing in solar

irradiation. The objective is to examine the performance of solar cooker in boiling

water. The solar cooker is a box type with collector area and height are 100 × 100

cm and 40 cm, respectively. Vessel for water is made of aluminum plate with

diameter and height of 22 cm and15 cm. The experiments are performed by varying

mass of the water. It is 2 kg and 4 kg, respectively. Every experiment starts from

10:00 AM until the boiling temperature is reached. The parameters measured are

radiance intensity, ambient and solar box cooker temperatures, and wind speed. The

results show that the duration of water heating up to 100oC with water mass 2 kg

within 2 hours 45 minutes and water mass 4 kg within 3 hours 17 minutes. The

maximum temperatur of solar box cooker is 117oC at 12:56 PM and maximum

efficiency is 46.30%. The main conclusion can be drawn here is that a simple solar

box cooker can be used to boil water.

Keywords: solar box cooker, radiance intensity, water, heating


187



Analysis of Power Generating Speed Bumps Made of

Concrete Foam Composite

BustamiSyam1, MaraghiMuttaqin2, Dino Hastrino3, Alexander

Sebayang2, Basuki WS4, M. Sabri1, and S. Abda5 1 Impact and Fracture Research Center, Dept. of Mechanical Engineering,

Faculty of Engineering, University of Sumatera Utara (USU)

E-mail: [email protected] 2 Graduate Student, MechEngr Study Program, USU 3 Undergraduate Student, Dept of MechEngr Study, USU 4 Dept. of Chemistry, Faculty of Science, University of Sumatera Utara 5Graduate student, Dept. ofMech. Engr, Faculty of Engineering, University

of Sumatera Utara

Abstract. This paper discusses the analysis of speed bump made of concrete foam

composite which is used to generate electrical power. Speed bumps are designed to

decelerate the speed of vehicles before passing through toll gates, public areas, or

any other safety purposes. In Indonesia a speed bump should be designed in the

accordance with KM Menhub 3 year 1994. In this research, the speed bump was

manufactured with dimensions and geometry comply to the regulation mentioned

above. Concrete foam composite speed bumps were used due to its light weight and

relatively strong to receive vertical forces from the tyres of vehicles passing over

the bumps. The reinforcement materials are processed from empty fruit bunch of oil

palm. The materials were subjected to various tests to obtain its physical and

mechanical properties. To analyze the structure stability of the speed bumps some

models were analyzed using a FEM-based numerical softwares.It was obtained that

the speed bumps coupled with polymeric composite bar (3 inches in diameter) are

significantly reduce the radial stresses. In addition, the speed bumps equipped with

polymeric composite casing or steel casing are also suitable for use as part of system

components in producing electrical energy.

Keywords: Speed bump, EFB fibers, Concrete foam composite, Numerical analysis

188




Developing a Hybrid Solar/Wind Powered Drip

Irrigation System for Dragon Fruit Yield

Indah Widiastuti1 and DanarSusilo Wijayanto1 1Department of Mechanical Engineering Education, Sebelas Maret

University, Surakarta, Indonesia


Abstract. Irrigation operations take a large amount of water and energy which

impact to total costs of crop production. Development of an efficient irrigation

supplying precise amount of water and conserving the use of energy can have

benefits not only by reducing the operating costs but also by enhancing the farmland

productivity. This article presents an irrigation method that promotes sustainable use

of water and energy appropriate for a developing tropical country. It proposes a drip

irrigation system supported by a combined solar-wind electric power generation

system for efficient use of water in dragon fruit cultivation. The electric power

generated is used to drive a water pump filling a storage tank for irrigating a 3000

m2 dragon fruit yield in Nguntoronadi, Wonogiri, Indonesia. In designing the

irrigation system, the plant’s water requirement was identified based on the value of

reference evapotranspiration of the area. A cost/benefit analysis was performed to

evaluate the economic feasibility of the proposed scheme. The installation of this

solar and wind drip irrigation helps provide sufficient quantity of water to each plant

using renewable energy sources which reduce dependence on fossil fuel.


189



Design and Velocity Distribution of Runner Blade of

Kaplan Turbine Using CFD (Computer Fluid Dynamic)

for Small Hydroelectric Power Plant

E Permana1, Y Rudianto1 1Departement of Mechanical Engineering Education, Faculty of

Technology and Vocational Education, Indonesian University of

Education, Jln Dr. Setiabudhi No 229 Bandung, Jawa Barat, Indonesia.


Abstract. Procedures for designing runner of Kaplan water turbine based on the

specific conditions in the water potential of the area to be placed, and assessed on

the terms of the theoretical analysis and engineering. The main objective of this

study was to determine the main characteristics of runners, namely suction head,

water flow, and the hydraulic forces that occur when the turbine operates. Modern

software for engineering such as computational fulid dynamics ( CFD ) is used to

predict the flow of fluid passing through the runner and Computer Aided

Engineering ( CAE ) to verify the design with Finite Element Analisys (FEA).

Kaplan turbine runner is designed to place the suction head low and as an option for

power generation in Galih Pakuan isolated from Ciwidey area and has not been

electricity. The available head and flow rate for turbine are 8 m and 0,3 m3/sec in

this site. The output power is 20kW estimated and turbine speed is 900 rpm, In

designing blade, blade element theories are the main theories of blade parameter

calculation. This paper selecting airfoil shape of the blade from Gottingen (GOE)

series and modelling the exact airfoil geometry by using Airfoil.com software.

Keyword: CAE, CFD, FEA, GOE, Kaplan Turbine, Runner.

190




Application of Biomass from Palm Oil Mill for Organic

Rankine Cycle to Generate Power in North Sumatera

Indonesia

Taufiq Bin Nur1, Zulkarnaen Pane2 and Mohammad Natsir Amin2 1Department of Mechanical Engineering, Faculty of Engineering, University

of Sumatera Utara, Indonesia 2Department of Electrical Engineering, Faculty of Engineering, University

of Sumatera Utara, Indonesia


Abstract. Due to increasing oil and gas demand with the depletion of fossil

resources in the current situation make efficient energy systems and alternative

energy conversion processes are urgently needed. With the great potential of

resources in Indonesia, make biomass has been considered as one of major potential

fuel and renewable resource for the near future. In this paper, the potential of palm

oil mill waste as a bioenergy source has been investigated. An organic Rankine cycle

(ORC) small scale power plant has been preliminary designed to generate electricity.

The working fluid candidates for the ORC plant based on the heat source

temperature domains have been investigated. The ORC system with a regenerator

has higher thermal efficiency than the basic ORC system. The study demonstrates

the technical feasibility of ORC solutions in terms of resources optimizations and

reducing of greenhouse gas emissions.


191

Molecular Science Presentation Code: A-08-08


Relevance of Human Chromosome Analysis Activities

against Mutation Concept in Genetics Course

1Renardi Erwinsyah*, 2Riandi, 3Mimin Nurjhani

1Sekolah Pascasarjana/UPI, Setiabudi No. 229, Bandung, Indonesia 2,FPMIPA/ UPI, Setiabudi No. 229, Bandung, Indonesia


Abstract. This study describes the relevance of human chromosome analysis

activities against genes and cromosomes mutation in genetics course. This activities

is to analyze the images of photomicrograph chromosomes of various cases and

disorders caused by irregularities of human chromosome number or structure in the

form of a karyotype. The purpose of this analysis is to gain relevance practicum

against the theory course. Object of this research is the lab activities of analysis

human chromosomes. Source of data derived from syllabus documentation, SAP,

genetics lecture, lab instructions, journals genetics, dan 40 respondents taken by

purposive sampling. The results showed analysis of human chromosomes activitites

can only preach of chromosome mutation concept only. The use of inquiry-based

lab project can be to preach more concept of gene mutations with more knowledge

coverage, the allocation of more time, greater cost, fewer students so that it matches

given to undergraduate student biology deepen molecular genetics. Conclusion of

this studies, analysis of human chromosomes activities is relevant to preach human

chromosome mutation concept but can not be used to preach concept of gene

mutations.


192


Ocean Engineering Presentation Code: B-07-09


Modelling the Physical System of Belawan Estuary

A. Perwira Mulia Tarigan1, Dhika Swandana1, and Faiz Isma2 1 Civil Engineering Department, Faculty of Engineering, University

of Sumatera Utara, Jl. Dr. Mansur No. 9 Medan, Indonesia 2 Civil Engineering Department, Faculty of Engineering, Universitas

of Samudra

Abstract. Belawan estuary represents one of the most complex and fascinating

mixed environments of sea and land, where not only habitat of rich biodiversity but

also international seaport infrastructure are at stake. It is therefore a matter of

considerable importance to understand the physical system which characterizes the

dynamics of the estuarine water. The purpose of this study is to model the changing

water depths, tidal currents, salt, temperature and sediment concentration over a

long stretch of Belawan estuary on a hourly basis. The first essential step is to define

the bathymetry based on which other physical parameters are simulated. The study

is accomplished by building working computer modules which simplify and model

the systems complexities. It should be noted that model validation and improvement

is the subject of the next study.

Keywords: Belawan, estuary, model, bathymetry, tidal current, salt, temperature and

sediment


193

Pharmacology Presentation Code: A-07-07


Top 200 Prescribed Drugs Mostly Prescribed by the

Physician in Pharmacies at Medan City

H R Tanjung* and E S Nasution

Pharmacology and Toxicology Department, Faculty of Pharmacy,

University of Sumatera Utara, Jl. Tridharma No.5, Kampus USU Medan

20155


Abstract. The drug information literatures usually contains thousand of drugs,

which much of them were rare or never prescribed by the physicians. It caused

pharmacy students must learn thousand of drugs that will depleted resources and the

study result was not effective. The aim of the study was to identified 200 items of

drugs that mostly prescribed by the physicians in the pharmacies at Medan City. The

study was a descriptive study that used a cross sectional survey methodology. The

200 items of drugs that mostly prescribed by the physician obtained from the

pharmacies selected regarding to random sampling method. The study was

conducted from August to September 2016. The 200 items of drugs that mostly

prescribed by the physician resulted from 21.962 prescribed drugs item of 16.352

prescriptions of 100 pharmacies. The list revealed that the most prescribed drugs

was amoxicilline (5.55 %), followed by dexamethasone (4.44%), mefenamic acid

(3.73%), cetirizine (3.16%), and ciprofloxacine (2.97%). It shows that the antibiotic

drug was the most prescribed drug by the physician in pharmacies at Medan City.

Further studies are required to develop the study card from the list.

194


Physics Presentation Code: A-01-04


Modeling of Drain Current in Tunneling Field-Effect

Transistor Based on Strained Armchair Graphene

Nanoribbons

E Suhendi1, R Syariati2, F A Noor2 and Khairurrijal2

1Physics of Electronic Materials and Modeling Research Division, Faculty

of Mathematics and Natural Sciences Education, Universitas Pendidikan

Indonesia, Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia

2Physics of Electronic Materials Research Division, Faculty of Mathematics

and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10,

Bandung 40132, Indonesia

Abstract. A tunneling field-effect transistor (TFET) based armchair

graphenenanoribbons (AGNRs) with variation of uniaxial strain has been modeled.

Bandgap of strained AGNR estimated by an extended tight binding method is

applied to obtain electrical characteristics of a TFET under the quantum capacitance

limit device approximation. Furthermore, the electron transmittance is calculated by

utilizing the WKB (Wentzel–Kramers–Brillouin) approach. The obtained

transmittance is then used to calculate the drain current by employing the Landauer

formula. The results show that strain parameter has significant effect on the current.

In other words, the electrical characteristics of AGNR TFET can be tuned by the

strain of AGNR.

Keywords: Graphene, AGNR, extended tight binding, WKB, strain, drain current


195



The Concept Mastery in the Perspective of Gender of

Junior High School Students on Eclipse Theme in

Multiple Intelligences-based of Integrated Earth and

Space Science Learning

W Liliawati1, J A Utama1 and L S Mursydah2 1Department of Physics Education, Indonesia University of Education 2Graduated student of Department of Physics Education, Indonesia

University of Education


Abstract. The purpose of this study is to identify gender-based concept mastery

differences of junior high school students after the implementation of multiple

intelligences-based integrated earth and space science learning. Pretest-posttest

group design was employed to two different classes at one of junior high school on

eclipse theme in Tasikmalaya West Java: one class for boys (14 students) and one

class of girls (18 students). The two-class received same treatment. The instrument

of concepts mastery used in this study was open-ended eight essay questions.

Reliability test result of this instrument was 0.9 (category: high) while for validity

test results were high and very high category. We used instruments of multiple

intelligences identification and learning activity observation sheet for our analysis.

The results showed that normalized N-gain of concept mastery for boys and girls

were improved, respectively 0.39 and 0.65. Concept mastery for both classes differs

significantly. The dominant multiple intelligences for boys were in kinesthetic while

girls dominated in the rest of multiple intelligences. Therefor we concluded that the

concept mastery was influenced by gender and student’s multiple intelligences.

Based on this finding we suggested to considering the factor of gender and students’

multiple intelligences given in the learning activity.

Keywords: Concept Mastery, Gender Perspective, Integrated Earth and Space

Science, Multiple Intelligences


196




Neutron Distributon in the Nuclear Fuel Cell using

Collision Probability Method with Quadratic Flux

Approach

Mohammad Ali Shafiia, Dian Fitriyania, Seni H. J. Tongkukutb, Ade

Gafar Abdullahc aDepartment of Physics, Andalas University Padang West Sumatera

Indonesia bDepartment of Physics, Sam Ratulangi University Manado North Sulawesi

Indonesia cDepartment of Electrical Engineering Education, Indonesia University of

Education Bandung Indonesia


Abstract. To solve the integral neutron transport equation using collision

probability (CP) method usually requires flat flux (FF) aproach. In this research, it

has been carried out in the cylindrical nuclear fuel cell with the spatial of mesh with

quadratic flux approach. This means that the neutron flux at any region of the nuclear

fuel cell is forced to follow the pattern of a quadratic function. The mechanism may

be referred to as the process of non flat flux (NFF) approach. The parameters that

calculated in this study are the k-eff and the distribution of neutron flux. The result

shows that all parameters are in accordance with the result of SRAC.

Keywords: neutron transport equation, collision probability, quadratic flux


197



Description of Self-Efficacy and Initial Cognitive

Abilities on the Students’ Physics Learning of the Direct

Current Electrical Circuits

Zaenudin1, Johar Maknun2, Muslim1

1Department of Physics Education, Indonesia University of Education,

Bandung 2Department of Architecture, Indonesia University of Education, Bandung


Abstract. This study aims to determine description of self –efficacy and initial

cognitive abilities on the students of MAN 1 Bandung (senior high school) in

learning physics on the subject of electrical circuits Direct Current (DC) before they

get academy ask assigned in the classroom. From the results of this research can be

used as a reference to provide appropriate measures for the advancement of student

learning . The theory used in this research is the theory of Bandura. The design in

this study using case study and data collection is done by tests and questionnaires,

sampling techniques used by random sampling, the study was conducted on 10th

grade students of MAN 1 Bandung by the amount of students 35 participants. The

results of data analysis showed that the percentage of students who have moderate

self-efficacy amounted to 67.05 %, and cognitive ability 50 %, this shows that the

process of learning that takes place in school before that junior high school is not

much sciencific implement processes that provide students the opportunity to

discover new things , then learning approaches of right is Problem Based Learning

(PBL).

Keywords: Self -efficacy, initial cognitive ability, electrical circuits direct current

198


Physiology Presentation Code: A-07-08


Correlation Anemia with Total Iron Binding Capacity

(TIBC) among Primary School Children in Medan

Dewi Masyithah Darlan*, Nurfida K Arrasyid*, Dewi Indah Sari

Siregar**

*Parasitology Department, Faculty Medicine of University of Sumatera

Utara

**Clinical Patology, Faculty Medicine of University of Sumatera Utara


Abstract. Anemia is a condition in which the number of red blood cells or their

oxygen carrying capacity is insufficient to meet physiologic needs. Iron Deficiency

Anemia (IDA) is the most common type of anemia in society. Iron deficiency is the

commonest form of malnutrition worldwide and according to the World Health

Organization it affects 43%. We conducted a cross sectional study to examine the

correlation Anemia with TIBC among schoolchildren in Medan. A total of 132

children aged 9-12 years were studied. The mean level of hemoglobin and TIBC

were 13.33 and 329.75, respectively. Data were collected using structured

questionnaire, and laboratory analysis for blood samples. The prevalence of anemia

was 7.6%, and high TIBC was 46%. The correlation anemia with TIBC was 0.16

with P = 0.059. There was no correlation between anemia with TIBC. The risk of

children with anemia for having High TIBC level was 1.78 times than children

without anemia (RP 1.78 (CI: 1.121 – 2.823). More studies to be done for finding

anemia cases for finding the relation between anemia with TIBC.



199

Physiology Presentation Code: A-08-01


The Cardiovascular Function Profile and Physical

Fitness in Overweight Subjects

Eka Roina Megawati1*, Lokot Donna Lubis2, and Febi Yanti Harahap2

1Departement of Physiology, Medical Faculty of University of Sumatera

Utara, Jl. dr. Mansur No. 5 Kampus USU Medan 20155 2 Departement of Histology, Medical Faculty of University of Sumatera

Utara, Jl. dr. Mansur No. 5 Kampus USU Medan 20155


Abstract. Obesity in children and young adult is associated with cardiovascular risk

in short term and long term. The aim of this study was to describe the profile of the

cardiovascular functions parameters and physical fitness in overweight. This is an

analytical observational study with cross sectional approach. The samples of this

study were 85 randomly selected subjects aged 18 to 24 years with normoweight

and body mass index <40. The parameters measures were body mass index (BMI),

waist circumference (WC), waist-hip ratio (WHR), cardiovascular function

parameters (resting pulse, blood pressure, and peak flow meter) and physical fitness

parameters (VO2max dengan McArdle step test). The mean BMI was 24,53±4,929.

The WC and WHR mean were 86,7±14,10 cms and 0,89±0,073 cm respectively.

The mean of resting pulses were higher in normoweight subject (p=0,0209). The

mean systole were lower in normoweight subject (p= 0,0026). No differences VO2

max between groups (p=0,3888). The peak flow meter was higher in normoweight

(p= 0,0274). The result of this study indicate that heart rate, systole and peak flow

meter are signifantly different between groups. The heart rate and the peak flow

meter in the overweight subjects were lower meanwhile the systole blood pressure

was higher compared to normoweight subjects.

Keywords: Obesity, Cardiovascular function, peak flow meter, VO2 max

200


Plant Science Presentation Code: A-07-02


The Effect of Sunlight in Parenchyma Pith Cells

Diameter of Manihot esculenta

Dewi Susanti1, Dahlan Noor Aziz2, Wiwit Astuti3, Eni Nuraeni4 1 Biology education, Indonesia University of Education, Bandung 2 Biology education, Indonesia University of Education, Bandung 3 Biology education, Indonesia University of Education, Bandung 4 Biology education, Indonesia University of Education, Bandung


Abstract: Sunlight is one of the factors that effect on the grow of a plant. Manihot

esculenta is one of the plants that easily found in Indonesia because its role as staple

food. The aim of this research is to know the correlation between sunlight the grow

of parenchyma pith cells diameter of Manihot esculenta. Independent variable in

this research is sunlight, and dependent variable is the parenchyma pith cells

diameter of Manihot esculenta. Data was collected is in qualitative and quantitative

form. Qualitative data gotten gained by morphology observation. The parenchyma

pith cells of Manihot esculenta that is affected by sunlight in 1310 x 10 Lux,

morphologically has hexagon, cell walls thick, solid state, and regular composition.

Meanwhile, the parenchyma pith cells that has less sunlight (363 x 10 Lux) has a

hexagon shape, thin cell walls thin, soft state, and irregular composition. Qualitative

data suported by quantitative data. The size of parenchyma pith cells diameter that

is affected by sunlight in 1310 x 10 Lux 96,4 µm. While, the stem parenchyma pith

cells diameter empulur that has less sunlight (363 x 10 Lux) is 129,8 µm.

Keyword: Manihot esculenta, sunlight effect, parenchyma pith cells diameter, stem


201



DNA Profiles of MTG (Moderat Tahan Gano) oil palm

variety based on SSR marker

Lollie Agustina P. Putri1*, Hot Setiado1, and Rika Hardianti2

1 Department of Agroecotechnology, Faculty of Agriculture, University of

Sumatera Utara, Jln. Prof. A. Sofyan no.3 Medan, North Sumatera 20155 2 Student of Department of Agroecotechnology, Faculty of Agriculture,

University of Sumatera Utara, Jln. Prof. A. Sofyan no.3 Medan, North

Sumatera 20155


Abstract. The oil palm, an economically important tree in Indonesia, has been one

of the world’s major sources of edible oil and a significant precursor of biodiesel

fuel. The objectives of this study were to know DNA profile of commercial MTG

(Moderat Tahan Gano) oil palm variety collections. A total of 10 trees MTG oil

palm variety were used for analysis. In this experiment, the DNA profile diversity

was assessed using mEgCIR0174 and SSR-1 loci of oil palm’s specific SSR

markers. The results of the experiment indicated out of 3 alleles of pcr product of

mEgCIR0174 (198, 203 and 208 bp) and SSR-1 (201, 217 and 232 bp). These

preliminary results demonstrated SSR marker can be used to evaluate genetic

relatedness among trees of MTG (Moderat Tahan Gano) oil palm variety derived

from different crossing or difference to desease resistance trait or misslabeled.

202




Assessment of Natural Regeneration of Mangrove

Species at Tsunami Affected Areas in Indonesia and

Malaysia

Onrizal1, Alfan Gunawan Ahmad1 and Mashhor Mansor2

1Faculty of Forestry, Universitas Sumatera Utara, Medan, Indonesia 2School of Biological Sciences, Universiti Sains Malaysia, Malaysia


Abstract. Indian Ocean tsunami caused extensive damage on human life and coastal

environments, including fragmented mangroves prior to 2004 tsunami. The natural

regeneration of mangrove woody species was assessed in four tidal coasts of Aceh

and Peninsular Malaysia during August 2015 to August 2016. A total of 23

mangrove woody species was recorded and they having good ability in term of

natural regeneration at tsunami affected areas. The North coast of Aceh was

recorded as richest mangrove with 22 species, followed by East coast of Aceh (17

species) and Peninsular Malaysia coast (13 species). In addition, the poorest

mangrove was found in West coast of Aceh (7 species). Some species, such as

Rhizophora apiculata, R. mucronata, Nypa fruticans, Scaevola taccada and

Sonneratia caseolaris are found growing well in all sites. In contrast, Bruguiera

cylindrica is only found in West coast of Peninsular Malaysia as same as Ceriops

tagal, Phoenix paludosa and Sonneratia ovata are only found in North coast of

Aceh. To date, some areas of natural regenerated mangrove were ruined by negative

activities, such as illegal cutting and encroachment. Therefore, public consultations

and community participations were needed to develop and conserve the important

natural assets. Keywords: natural catastrophe, resilient species, mangrove

vegetation, succession, anthropogenic disturbance.


203



Propagation of Valuable North Sumatera Benzoin Trees

(Styrax Sp) Using Macrocutting Technique

ASusilowati1*, KS Hartini1, HH Rachmat2and M Alvaroby1 1Faculty of Forestry, University of Sumatera Utara.Jl. Tridharma Ujung No

1. Kampus USU Medan20155 2Forest Research and Development Agency, Ministry of Environment and

Forestry. Jl. Raya Gunung Batu. Bogor.16680


Abstract. Kemenyan known as Sumatran benzoin is North Sumatera local species

that produce high valuable rosin and prospective export comodities. However,

sustainability of Sumatran benzoin production has many constraints such

asinstability of resin production, lack information of propagation technique and

traditional management system. Until now, comprehensive information for

Sumatran benzoin propagation system still not determined yet. The objectives of

this research were (1) to get information about propagation technique of Sumatran

benzoin and its suitable growing medium and 2) to get information on adventitious

root formation in Sumatran benzoin cuttings. Cutting materials (Toba benzoin and

Durame benzoin) were originated from 1 year old seedling propagated by seed.

Media used were combination of sand : rice husk (1:0 v/v; 1/1 v/v). Results showed

that interaction between media and benzoin species significantly affected primer and

secondary root lenght. While planting medium significantly improved secondary

root length and number. Benzoin species significantly affected primary

andsecondary root lenght, and secondary root number.

204




The Correlation of Tree Phenology with Nest Number of

Orang Utan Sumatera (Pongo abelii) on Primary Forest,

Resort Sei Betung, Gunung Leuser National Park

KS Hartini*, P Patana, M Oktaviani

Faculty of Forestry, University of Sumatera Utara, Jl. Tri Dharma Ujung

No. 1, Kampus USU Medan, 20155


Abstract. Food availability affect the orangutan activities, including activities to

make nests. This study was conducted to determine the correlation between the

phenology of trees with the number of nests made by orangutans in primary forest

Resort Sei Betung, Gunung Leuser National Park. Multi linear regression was used

in this study to determine the relation and correlation between phenology and the

presence of orangutan nests on a track that has been created. It took over 6 months

(March - August 2015). There were 15 orangutan nests found on the track during

the study. The equation model was : = 27,649 -0,011X1-0,104X2-0,056X3 , and

there was no significant differences (sig >0,05). The value of R2 was 70,3%. It

means that all predictors simultaneously explain 70,3% of the presence of

orangutan’s nest, and there is an expected predictors that may be the most affect on

nest presence. The season or the intensity of rain may consider as an expected

predictor.


205

Space Science Presentation Code: A-05-07


Frequency Drift Rate Investigation of Solar Radio Burst

Type II Due to Coronal Mass Ejections Occurrence on

4th November 2015 Captured by CALLISTO at

Sumedang - Indonesia

Batubara M1, Manik T1, Suryana R1, Lathif M1, Sitompul P1, Zamzam

M1 and Mumtahana F1

1 Space Science Centre – Indonesian National Institute of Aeronautics and

Space (LAPAN), Bandung, West Java, 40173, Indonesia


Abstract. The formations type of solar radio bursts can be known base on the

frequency range that is detected. The CALLISTO system works with a wide band

of the frequency making it possible to detect several types of solar burst. Indonesia

exactly at Sumedang, CALLISTO system detected the formation of solar radio

bursts forms of type II for the first time on 5 November 2014. On the other side,

CALLISTO spectrometer detects and traces the phenomenon of CME (Coronal

Mass Ejections) which causes the solar radio burst type II occurrence. In this paper

will be calculated frequency drift rate during the occurrence of solar radio bursts of

type II phenomenon on 4th November 2015 at 03:30 UT. The results of these

calculations will be discussed as a related study of drift rate during the phenomenon

of burst type II radio bursts associated with CME. The obtained drift rate during the

solar radio bursts events above 2.8 MHz / s with low drift rate so that the speed of

the CME that occurred only about 790 km / s as shown from LASCO.

206




Solar Radio Burst Data Processing of CALLISTO and

Frequency Drift Rate Determination of Solar Radio

Burst Detected by CALLISTO Network in Indonesia

Batubara M1, Manik T1, Suryana R1, Lathif M1, Sitompul P1, Zamzam

M1 and Mumtahana F1 1 Space Science Centre – Indonesian National Institute of Aeronautics and

Space (LAPAN), Bandung, West Java, 40173, Indonesia


Abstract. Space Science Center of Indonesian Institute of Aeronautics and Space

called LAPAN has installed several solar radio receivers named CALLISTO in

various parts of Indonesia. The equipment has made some solar radio observational

data which is indicate solar radio burst since its operation. All of the observational

data stored in the file format of Flexible Image Transport System (FITS) which is

the raw data. Therefore, it is required a such kind of related data processing to

produce a data that can be used for further research. In this paper will discuss how

the observational data of CALLISTO could be generated included the information

of data format, CALLISTO data processing techniques used in these activities as

well as some of the data processing based on data indicating solar radio bursts. As

the results, a map of solar radio spectrum as spectrograph profiles and some

determinations of frequency drift base on the data will also be discussed in this

paper.


207



Muscle Strength Endurance Testing Development

Based Photo Transistor with Motion Sensor Ultrasonic

A Rusdiana Sport Science Program Study, Faculty of Physical Education and Health

Education, Universitas Pendidikan Indonesia


Abstract. The endurance of upper-body muscles is one of the most important

physical fitness components. As technology develops, the process of test and

assessment is now getting digital; for instance, there are a sensor stuck to the shoe

(Foot Pod, Polar, and Sunto), Global Positioning System (GPS) and Differential

Global Positioning System (DGPS), radar, photo finish, kinematic analysis, and

photocells. Those devices aim to analyze the performances and fitness of athletes

particularly the endurance of arm, chest, and shoulder muscles. In relation to that,

this study attempt to create a software and a hardware for pull-ups through

phototransistor with ultrasonic motion sensor. Components needed to develop this

device consist of microcontroller MCS-51, photo transistor, light emitting diode,

buzzer, ultrasonic sensor, and infrared sensor. The infrared sensor is put under the

buffer while the ultrasonic sensor is stuck on the upper pole. The components are

integrated with an LED or a laptop made using Visual Basic 12 software. The results

show that pull-ups test using digital device (mean; 9.4 rep) is lower than using

manual calculation (mean; 11.3 rep). This is due to the fact that digital test requires

the test-takers to do pull-ups perfectly.

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