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Prikaz rezultata 1-10 od 1506
Comparison of properties of silver-metal oxide electrical contact materials
(Technical Faculty, Bor, 2012)
Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. ...
Possible Mechanism of Pectin-Derived Oligosaccharides Influence on Gut Microbiota / Predloženi mehanizam uticaja oligosaharida dobijenih iz pektina na intestinalnu mikrobiotu
(Belgrade: University of Belgrade, 2018)
We prepared pectin-derived oligosaccharides (apple and citrus) and polygalacturonic acid-derived oligosaccharides, using alkaline hydrolysis by hydrogen peroxide, and analyzed them by Fourier Transform Infrared spectrometry. ...
Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution
(Esg, Belgrade, 2016)
Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen ...
Biodiversity overview of soda pans in the Vojvodina region (Serbia)
(Geographical Institute "Jovan Cvijic", SASA, 2018)
Due to their specific physical and chemical properties of water and soil soda pans of the
Vojvodina region represent a unique type of habitats. Salinity is a major structuring factor which
strongly affects species richness. ...
Mechanochemical Preparation of CaO·ZnO – catalyst for Fatty Acids Methyl Esters Synthesis
(Belgrade : Serbian Ceramic Society, 2012)
One of the catalysts that show excellent activity in the methanolysis of vegetable oil under moderate reaction conditions is the mixture of CaO and ZnO oxides. In this study CaO•ZnO catalyst was synthesized by mechanochemical ...
Diatoms – invisible residents of Resavska Cave (eastern Serbia)
(Postojna, Slovenia : Organizing Commitee, 2nd Dinaric Symposium on Subterranean Biology, 2019)
Diatoms (Bacillariophyta) are widespread microorganisms that were found in different aquatic ecosystems, but also in other habitats, such as stone substrates exposed to air. There diatoms thrive with other phototrophic ...
Phenolic profile of some fruit wines and their antioxidant properties
(Association of Chemical Engineers of Serbia, 2016)
The composition and content of individual phenolic compounds in various fruit wines and overall antioxidant properties of these fruit wines were studied. Phenolic compounds were separated by reverse phase (RP) HPLC techniques, ...
Effect of tungsten carbide in carbon Pt catalyst support on electrochemical oxygen reduction in acid solution / Uticaj prisustva volfram-karbida u ugljeničnom nosaču Pt nanočestica na elektrohemijsku redukciju kiseonika u kiselom rastvoru
(Association of Chemical Engineers of Serbia, 2013)
Tungsten carbide was synthesized by calcination of carbon cryogel with embedded tungsten in a form of metatungstate. This material was used as a support for Pt nanoparticles. XRD pattern of W-C support indicated the presence ...
Bioactive pullulan based edible films with medicinal herbal extracts
(Belgrade : Society of Physical Chemists of Serbia, 2018)
In this work, pullulan based films with water extracts of medicinal herbs thyme and sage, were prepared. The resulting films were characterized by FT-IR spectroscopy and their antioxidant and antimicrobial activities were ...
New views on strategic management / Novi pogledi na strategijski menadžment
(University of Novi Sad, Technical faculty Mihajlo Pupin, Zrenjanin, 2017)
Globalisation is the only economic way for national economies all around the world. The globalisation process is marked by the following characteristics: uneven industrial development, intensive application of information ...