Претраживање
Приказ резултата 31-40 од 101
Local approach to ductile fracture of low steel welded joints / Lokalni pristup žilavom lomu zavarenih spojeva niskolegiranog čelika
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2012)
The subject of this dissertation is analysis of ductile fracture initiation and stable crack growth by ductile fracture mechanism in low alloyed steel and welded joints. The analysis is conducted using local approach to ...
Synthesis and characterization of carbon materials as titanium dioxide carrier for removal of the selected organic pollutants from water / Sinteza i karakterizacija ugljeničnih materijala kao nosača titan-dioksida za uklanjanje odabranih organskih zagađujućih materijala iz vode
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2018)
The main objective of this work was to develope appropriate preparation method in order to obtain TiO2/carbon composites with the highest efficiency in removal of organic pollutants from the water. Carbon monolith and ...
The synthesis of fatty acid methyl esters from waste lard by homegeneously and heterogeneously catalyzed methanolysis / Sinteza metil estara masnih kiselina otpadne svinjske masti primenom homogeno i heterogeno katalizovane metanolize
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
In this doctoral dissertation the methanolysis of waste lard from piglet roasting in the presence of KOH, CaO or quicklime at moderate temperatures (below the boiling point of methanol) and the molar ratio of methanol:fatty ...
Optimization of enzyme production of fatty acid methyl esters / Razvoj enzimskog postupka za sintezu metil estara masnih kiselina
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2014)
Тhis thesis deals with the transesterification of sunflower oil in the solvent-free system. The catalytic activity of lipases from different sources (Candida rugosa, Rhizomucor miehei, Candida antarctica) has been examined ...
Removal of textile dyes from water by photocatalytic degradation in the presence of titanium dioxide nanoparticles immobilized onto chitosan and alginate based hydrogels. / Uklanjanje boja za tekstil iz vode fotokatalitičkom degradacijom u prisustvu nanočestica titan-dioksida imobilisanih na hidrogelove hitozana i alginata
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
The aim of this Ph.D. thesis was to investigate the possibility of immobilization of titanium dioxide (TiO2) nanoparticles onto/into hydrogels as carriers, as well as the photodegradation of textile dyes from aqueous ...
Reduction of volatile organic compounds emissions in crude oil industry by cleaner production principles. / Smanjenje emisija lakoisparljivih organskih jedinjenja u industriji prerade nafte primenom čistije proizvodnje
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2015)
Crude oil and its derivates are a significant source of VOC, i.e., volatile organic compounds. A goal of this research is to set a base for VOC emission reduction through engineering design and proactive actions as a cleaner ...
Preparation of biologically active polyphenols by utilising the primrose (Primula veris), the horsetail (Equisetum arvense) and the yarrow (Achillea millefolium) processing waste. / Iskoričćenje otpada iz prerade jagorčevine (Primula veris), rastavića (Equisetum arvense) i hajdučke trave (Achillea millefolium) za dobijanje biološki aktivnih polifenola
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2017)
The subject of this dissertation is the utilization of waste materials from the processing of primrose (Primula veris), horsetail (Equisetum arvense) and yarrow (Achillea millefolium) for obtaining biologically active and ...
Swelling of plant material under the influence of supercritical carbon dioxide – mathematical modelling and optimization of the process of supercritical fluid extraction / Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2010)
The subject of this disertation is the swelling of plant material under the influence of supercritical carbon dioxide, as well as the effects of swelling on the process of supercritical fluid extraction (SFE). The results ...
Agro-industrial waste as a substrate for production of lactic acid, microbial biomass and animal feed / Agro-industrijski otpad kao supstrat za proizvodnju mlečne kiseline, mikrobne biomase i hrane za životinje
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2019)
Lactic acid has been widely used in food, cosmetics, pharmaceutical and chemical industry. In recent years, the most important application of lactic acid is in production of poly-lactic acid (PLA) polymers, which are most ...
Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method / Nanostruktuirani platinski katalizatori za elektrohemijsku oksidaciju malih organskih molekula sintetizovani mikroemulzionim postupkom
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2019)
Development of novel materials that would enable the commercialization of fuel cell technology and contribute to reduction of fossil fuel usage in energy production is of great importance for the progress of modern society. ...