UNIVERSITY OF NlSFaculty of Technology, Leskovac

BOOK OF ABSTRACTS13th SYMPOSIUM

" Novel Technologies and Economic Development"

Leskovac, October, 18 -19,2019

UNIVERSITY OF NlSFaculty of Technology, Leskovac

BOOK OF ABSTRACTS>th13in SYMPOSIUM

,,NOVEL TECHNOLOGIES AND ECONOMICDEVELOPMENT"

Leskovac, October, 18-19, 2019.

Faculty of Technology, Leskovac

Publisher: Faculty of Technology, Leskovac

For the Publisher: Prof. Ljubisa Nikolic

Editor: Prof. Miodrag Lazic

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SYMPOSIUM with international participation "Novel Technologies and EconomicDevelopment" (13 ; 2019 ; Leskovac)

Book of Abstacts / 13 th Symposium [with international participation] "Novel Technologiesand Economic Development" Leskovac, October, 18-19, 2019. ; [organized by] Faculty ofTechnology, Leskovac [and] Serbian Academy of Sciences and Arts (SANU), Branch in Mis] ;[editor Miodrag Lazic]. - Leskovac : Faculty of Technology, 2019 (Leskovac : Makos print). -223 str. : ilustr. ; 24 cm

Na vrhu nasl. str.: University of Nis. - Tiraz 180. - Registar.

ISBN 978-86-89429-35-0

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COBISS.SR-ID 279403020

Print: MAKOS-PRINT, Leskovac; 2019.Printing: 180

Proofreader: Biljana Mitic StankovicPaging and graphical design: Vesna Marinkovic

ISBN 978-86-89429-35-0

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chnologiesacuity ofnch in Nis];os print). - 13th Symposium with international participation "Novel Technologies and

Economic Development" was also supported by Ministry of Education, Science

and Technological Development Republic of Serbia.

13th Symposium with international participation"Novel Technologies and Economic Development"

The Programme Committee:

Goran Nikolic, President, Leskovac, SerbiaVlada Veljkovic, Leskovac, SerbiaIvana Bankovic Ilic, Leskovac, SerbiaOlivera Stamenkovic, Leskovac, SerbiaVesna Nikolic, Leskovac, SerbiaSuzana Cakic, Leskovac, SerbiaDragisa Savic, Leskovac, SerbiaNenad Cirkovic, Leskovac, SerbiaMarija Stojanovic Krasic, Leskovac, SerbiaIvan Mihailovic, Leskovac, SerbiaMiroslav Komljenovic, Belgrade, SerbiaSlobodan Petrovic, Belgrade, SerbiaBorde Veljovic, Belgrade, SerbiaBranka Pilic, Novi Sad, SerbiaIvan Ristic, Novi Sad, SerbiaPeda Milosavljevic, Nis, SerbiaMilena Miljkovic, Nis, SerbiaNenad Zivkovic, Nis, SerbiaAndrija Smelcerovic, Nis, SerbiaMilena Kostic, Nis, SerbiaBorislav Milanovic, Banja Luka, Bosnia and HerzegovinaZeljka Marjanovic Balaban, Banja Luka, Bosnia and HerzegovinaMiladin Gligoric, Zvornik, Bosnia and HerzegovinaGoran Demboski, Skopje, Republic of Northern MacedoniaSlavco Aleksovski, Skopje, Republic of Northern MacedoniaKarmina Miteva, Skopje, Republic of Northern MacedoniaJadranka Blazevska Gilev, Skopje, Republic of Northern MacedoniaVineta Srebrenkoska, Stip, Republic of Northern MacedoniaDarko Goricanec, Maribor, SloveniaAnita Tarbuk, Zagreb, CroatiaAnna Wisniewska Beker, Krakow, PolandVolkan Kaplan, Kinikli Denizll, TurkeyLuca Polleto, Padova, ItalyMassimo de Marchi, Padova, ItalyMarcela Elisabeta Barbinta-Patrascu, Bucharest, RomaniaLjubica Tasic, Sao Paolo, BrasilDejan Nikolic, Chicago, USAKrasimiv Drumev, Gabrovo, BulgariaMilena Sipkova, Prague, Czech RepublicRadmila Tomovska, EspanaSelma Hurem, Oslo, Norway

13 Symposium with international participation"Novel Technologies and Economic Development"

Organized by: Faculty of Technology, LeskovacCo-organizer: Serbian Academy of Sciences and Arts (SANU) - Branch in Nis

The Organizing Committee:

Ljubisa Nikolic, President, Leskovac, SerbiaNinoslav Stojadinovic, Belgrade, SerbiaMilena Marjanovic, Leskovac, SerbiaGoran Cvetanovic, Leskovac, SerbiaGoran Jovic, Leskovac, SerbiaNebojsa Kocic, Leskovac, SerbiaSanja Conic, Leskovac, SerbiaDragan Milenovic, Leskovac, SerbiaIgor Denic, Leskovac, SerbiaMilos Terzic, Leskovac, SerbiaJovica Misic, Surdulica, SerbiaRadojica Ristic, Leskovac, SerbiaAndrea Nutricato, Vlasotince, SerbiaAleksandar Stojiljkovic, Leskovac, SerbiaMiodrag Lazic, Leskovac, SerbiaStanisa Stojiljkovic, Leskovac, SerbiaSreten Stojanovic, Leskovac, SerbiaNada Nikolic, Leskovac, SerbiaJovan Stepanovic, Leskovac, SerbiaDusan Trajkovic, Leskovac, SerbiaZoran Kostic, Leskovac, SerbiaMarina Nikolic, Leskovac, Serbia

CONTENS

PLENARY LECTURES

Massimo De Marchi, Carmen L. ManuelianNOVEL APPLICATIONS OF INFRARED TECHOLOGIES IN DAIRY INDUSTRYLjubica TasicTAILOR-MADE NANOMATERIALS FOR HUMAN BENEFITMiroslav KomljenovicGEOPOLYMERS - INORGANIC POLYMERS WITHIN THE CONCEPT OFSUSTAINABLE DEVELOPMENTAnita Tarbuk, Sandra Flincec Grgac, Tihana DekanicCAPILLARITY OF HOSPITAL PROTECTIVE TEXTILESMilorad CakicNANO-BIOCOMPLEXES BASED ON OLIGOSACCHARIDES AND THEIRDERIVATIVESMilena Kostic, Ljubisa NikolicCONTEMPORARY DENTAL MATERIALSAndelka Tomasevic, Slobodan Petrovie, Dusan MijinPHOTOCHEMICAL PROCESSES FOR REMOVAL OF CARBAMATEPESTICIDES FROM WATER

Section: FOOD ENGINEERING

PostersDusica Hie, Natasa Vitosevic, Tamara Popovic, Vesna Nikolic,Ljiljana StanojevicTHE INFLUENCE OF THE PROCESSING ON THE ANTIOXIDANT ACTIVITYOF ARONIA LIQUEURMarija Petrovic, Predrag Vukosavljevic, Snezana Zlatanovic,Sonja Veljovic, Stanislava GorjanovicUTILIZATION OF THE CHOKEBERRY POMACE FOR PRODUCTION OFLIQUEUR WITH HIGH CONTENT OF PHENOLIC COMPOUNDS ANDANTIOXIDANT ACTIVITYNada Nikolic, Jelena Mitrovic, Ivana Karabegovic, Gordana Stojanovic,Miodrag LazicA CONTENT AND COMPOSITION OF FREE PHENOLICCOMPOUNDS OF CHIA (Salvia hispanica L.) SEEDSJelena Mitrovic, Nada Nikolic, Ivana Karabegovic, Miodrag Lazic,Ljubisa NikolicTHE EFFECT OF SOLVENTS ON REDUCING POWER AND FERRICREDUCING ANTIOXIDANT POWER OF FREE POLYPHENOLS FROMNETTLE (Urtica dioica L.) SEEDS

Maja Ivic, Marija Jokanovic, Vladimir Tomovic, Branimir Pavlic,Snezana Skaljac, Branislav SojicINFLUENCE OF MARINATION PROCESS WITH ADDITION OF SATUREJAMONTANA ESSENTIAL OIL ON LIPID OXIDATION OF COOKED PORKCHOPS _ 41Branislav Sojic, Vladimir Tomovic, Suncica Kocic-Tanackov,Branimir Pavlic, Marija Jokanovic, Maja Ivic, Snezana SkaljacEFFECT OF GINGER ESSENTIAL OIL ON MICROBIOLOGICAL QUALITY OFCOOKED PORK SAUSAGES 42Dragana Stanisavljevic, Sofija Oordevic, Ivana Karabegovic,Dragan Velickovic, Branislav Zlatkovic, Novica Randelovic, Miodrag LazicCHEMICAL ANALYSIS OF ESSENTIAL OIL OF Nepeta nuda L. 43Dragan T. Velickovic, Mirjana N. Virijevic, Ljiljana P. Stanojevic,Jelena S. Stanojevic, Ivana S. Mosic, Grozdan R. StamenkovicCAPSAICIN, PHENOLS AND FLAVONOIDS QUANTIFICATION IN LESKOVACAND HABANERO HOT PEPPERS 44Vesna Gojkovic Cvjetkovic, Zeljka Marjanovic-Balaban, Radoslav GrujicFOOD ALLERGENS - METHODS FOR GLIADIN AND GLUTENINDETERMINATION 45Ivana Karabegovic, Marko Malicanin, Stojan Mancic, Sandra StamenkovicStojanovic, Nada Nikolic, Miodrag LazicEFFECTS OF NON-SACCHAROMYCES YEASTS ON QUALITY ANDSENSORY CHARACTERISTIC OF CHARDONNAY WINES 46Bojana Danilovic, Bojana Milicevic, Natalija Dordevic, Dragisa SavicINHIBITORY EFFECT OF SAGE ESSENTIAL OIL AGAINST Escherichia coliDURING STORAGE OF MINCED PORK 47Milan Hie, Miljojka Mijailovic, Miijana Markovic, Svetomir Milojevic,Tomislav TrisovicPRODUCTION OF THE WILD BLACKBERRY AND BLUEBERRY DISTILLATE 48Ivana Kostic, Tatjana Andelkovic, Darko Andelkovic, Danica Bogdanovic,Milica Brankovic, Tatjana Cvetkovic, Gordana KocicINVESTIGATION OF AMMONIUM HYDROXIDE EFFECT ON DEHPEXTRACTION FROM MILK SAMPLES 49

Section: BIOCHEMICAL ENGINEERING 51

PostersSandra Stamenkovic Stojanovic, Ivana Karabegovic, Vladimir Beskoski,Nada Nikolic, Miodrag LazicINFLUENCE OF CULTIVATION CONDITIONS ON THE GROWTH ANDBIOMASS YIELD OF BACILLUS SUBTILIS 53Jovana Duran, Zorana Roncevic, Jovana Grahovac, Bojana Bajic, SinisaDodic, Aleksandar Jokic, Jelena DodicXANTHAN PRODUCTION ON INDUSTRIAL WASTEWATER USINGDIFFERENT Xanthomonas campestris STRAINS 54

Section: TECHNOLOGY AND SUSTAINABLE DEVELOPMENT 119

PostersDragana Markovic Nikolic, Goran Petkovic, Aleksandar Zdravkovic,Tanja Nikolic, Danijela Stojadinovic, Novica Stankovic,Miodrag SmelcerovicGREEN CONVERSION OF GOURD SHELL BIOMASS INTO VALUEADDED PRODUCT: ANALYSIS AND VALORISATION 121Ljiljana Takic, Ivana Mladenovic Ranisavljevic, Dejan Vasovic,Nenad ZivkovicDEVIATION OF THE WATER QUALITY OF THE DANUBE IN SERBIA FROMTHE REQUIREMENTS OF THE WFD 122Bratislav Z. Todorovic, Dragan T. Stojiljkovic, Marija Prekajski Dordevic,Sanja M. Petrovic, Amer M. Juma, Nebojsa C. Mitic, Stanisa T. StojiljkovicGEOTHERMAL WATER FROM VG-2 BOREHOLE AT VRANJSKA BANJA,SERBIA: XRD CHARACTERIZATION 123Zorica Erakovic, Stanko Zerajic, Ivana Mladenovic RanisavljevicCONSTRUCTION WASTE MATERIAL FLOW MANAGEMENT ON THETERRITORY OF JABLANICA DISTRICT 124Danijela Stojadinovic, Tanja Nikolic, Dragana Markovic Nikolic, GoranPetkovic, Novica Stankovic, Aleksandar Zdravkovic, Miodrag SmelcerovicVALORIZATION OF SOIL QUALITY OF THE TOWN OF KRUSEVAC FROMTHE ASPECT OF CHEMICAL POLLUTION BY HEAVY METALS 125

Section: INORGANIC CHEMICAL TECHNOLOGY 127

PostersDorde Z. Novkovic, Jovica D. Bogdanov. Zlate S. Velickovic, Zoran J. BajicOPTIMIZATION OF CuO AND ALUMINIUM THERMITE COMPOSITIONUSING RESPONSE SURFACE METHODOLOGY 129Marija Suljagic, Predrag Vulic, Dejan Jeremic, Aleksandar S. Nikolic,Goran Petkovic, Ljubica AndjelkovicTHE IMPACT OF SYNTHESIS METHOD AND STARCH-COATING ON THEMAGNETIC PROPERTIES OF NANOMETRIC COBALT FERRITE 130

Section: ADVANCED MATERIALS 131

PostersDjordje Veljovic, Giuma Ayoub, Maja Lezaja Zebic, Vesna Miletic,Tamara Matic, Rada Petrovic, Djordje JanackovicDIFFERENT SINTERED CALCIUM PHOSPHATEINSERTS AS MATERIALSFOR DENTIN REPLACEMENT 133Sandra Veljkovic, Aleksandra Curcic, Gordana Toplicic-CurcicFUNCTION AND UNDERLYING MECHANISMS OF OLED DEVICESMATERIALS 134Snezana Ooric-Veljkovic, Predrag Jankovic, Sofija Rancic, Momcilo Kocic,Marija Stojanovic-KrasicNOVEL MATERIALS FOR OPTICAL FIBERS 135

FUNCTION AND UNDERLYING MECHANISMS OF OLED DEVICESMATERIALS

Sandra Veljkovic1, Aleksandra Curcic2, Gordana Toplicic-Curcic2

1University of Nis, Faculty of Electronic Engineering, Nis, Serbia2University of Nis, Faculty of Civil Engineering and Architecture, Nis, Serbia

Novel materials for the organic light emitting diode (OLED) could have wide applicationdue to their characteristics. Innovations and very quality solutions, lead to application inmany areas: in mobile telephones, tablets, displays for digital camera, TVs, inautomotive industry, but also as a key part of the innovative luminary products. Onepromising application could be for windows which might be the source of artificial lightwhen the daylight has gone. Such new equipment is improved to reduce electricityconsumption, but one of the main reasons is to make artificial light more similar todaylight and more pleasant to the eye.It should be emphasized that OLEDs lead to the new lighting design platform that couldenable the true integration of lighting and architecture, something that was not possiblein the earlier stage. Namely, OLED light sources could be directly embedded ontoarchitectural materials and could also be used to create decorative lighting applications, as well as free-form luminous objects.OLED light sources are made up of very thin organic layers and they are bright whenthe current passes through them. It is observed that several materials and techniquescould be used for producing. The most used molecules in OLED components includeorganic-metal composites, like polymer Alq3 - aluminum tris(8-hydroxyquinoline), whichwas used in the first device that emitted light. In the recent technology hybrid light-emitting layer was developed which used non-conducting polymers doped with light-emitting, conductive molecules. Technologies which can be used in production areorganic vapor phase deposition, organic vapor jet printing and nanopatterning. Thesetechnologies are very similar to chemical vapor deposition but with improvedsequences.In general, OLED structure consists of several tin organic films which are between twoelectrode layers. When the voltage is applied to the circuit, electrons and holes areinserted in tin organic films. After that, the carriers move through the structure underthe influence of the field, recombine and create excitons. There is a variety in the wayof excitation, so a few OLED types can be observed. The oldest way of production isPassive Matrix OLED where row and column selection is the ideal type for small,cheap screens. Active-matrix OLED is an upgraded version and it is used for reducingenergy consumption. Transparent OLED is based on idea that all elements should betransparent. Flexible OLED is the most resistive OLED of all and it finds application inmobile phones, watches and jewelry. White OLED is very interesting for application assources of light, while phosphorescent OLED uses principles ofelectrophosphorescence to convert electricity from OLED to the light.The goal of this research is to elucidate function mechanisms in materials applied inOLED devices and possibilities of future research in this area, but also to point out thebenefits of their application.

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