Pretraživanje
Prikaz rezultata 31-40 od 78
Biosorption as a new biotechnology with an aim of protection and balanced use of biodiversity / Biosorpcija kao nova biotehnologija u funkciji očuvanja i uravnoteženog korišćenja biodiverziteta
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2010)
Rapid techno-economic development, without adequate protection of the environment, caused a number of emergence problems: pollution, waste, loss of biodiversity, introduction of invasive species, release of o genetically ...
Hydroxyapatite coatings on TiO2 nanotubes / Prevlake hidroksiapatita na nanotubama oksida titana
(Engineering Society for Corrosion, Belgrade, Serbia, 2010)
The aim of this work was to obtain nanotubular TiO2 layer by anodization of titanium substrate, and to prepare hydroxyapatite (HAP) coatings by electrophoretic deposition over nanotubular TiO2 layer. The presence of fluoride ...
Environmental pollution and importance of monitoring of chemical contaminants in food / Zagađenje životne sredine i značaj monitoringa hemijskih kontaminanata u hrani
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2009)
Food is combination of different chemical components important for nutrition and health. Also, some environmental pollutants as heavy metals or some results of anthropogenic activities as a pesticide could be present in ...
Analytical models of temperature impact on SiC MOSFET structure transconductance and output conductance / Analitički modeli uticaja temperature na transkonduktansu i izlaznu konduktansu sic mosfet strukture
(Savez inženjera i tehničara Srbije, Beograd, 2009)
In this paper, the results of investigation and modeling one of the most frequently used electron component - MOSFET (Metal Oxide Semiconductor Field Effect Transistor), made of SiC, are presented. At the begging, very ...
Welding technology of aluminium alloys using friction stir welding / Tehnologija zavarivanja aluminijumskih legura postupkom zavarivanja trenjem alatom
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2010)
The objective of this paper is a development of welding technology of aluminium alloys by Friction Stir Welding (FSW). FSW is a very modern welding process with a great future use, primarily due to a variety of possible ...
Characterization of electrochemically synthesized pani on graphite electrode for potential use in electrochemical power sources / Elektrohemijska sinteza i karakterizacija elektrode od polianilina za potencijalnu upotrebu u elektrohemijskim izvorima energije
(Inženjersko društvo za koroziju, Beograd, 2009)
Polyaniline (PANI) on graphite electrode was synthesized electrochemically under galvanostatic condition at current density of 2.0 mA cm-2 from aqueous solution of 1.0 moldm-3 HCl and 0.25 mol dm-3 aniline monomer. ...
Natural resources protection by municipal solid waste recycling / Očuvanje prirodnih resursa reciklažom materijala iz komunalnog otpada
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2009)
Rapid population growth, urbanization and industrial growth have led to severe waste management problems in the cities of developing countries. The improper management of municipal solid waste is a major source of air, ...
SiC synthesis using domestic mineral resources
(University of Novi Sad, 2011)
The possibility of using domestic Mg-silicate (sepiolite, white) as Si source and novolac resin (as carbon source), for synthesis of fine β-SiC powder at relatively low temperatures (1673-1873 K), was demonstrated. Obtained ...
Crystallization behaviour of Li2O·Nb2O5·SiO2 glass containing TiO2
(University of Novi Sad, 2011)
This paper deals with the crystallization of glass 30Li2O·15Nb2O5·50SiO2·5TiO2 (mol%). The crystallization behavior was studied under isothermal and non-isothermal conditions. XRD and SEM methods were employed for determination ...
The electrochemical deposition and corrosion stability of Zn-Mn alloy coatings / Elektrohemijsko taloženje i koroziona stabilnost prevlaka Zn-Mn legura
(Engineering Society for Corrosion, Belgrade, Serbia, 2010)
The influence of the type of the deposition solution on the current efficiency during electrodeposition of Zn-Mn alloys was examined. The Zn-Mn alloys were deposited on steel from chloride, sulphate and pyrophosphate plating ...