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Now showing items 1581-1590 of 1604
Electrochemical oxidation of methanol on Pt3Co bulk alloy / Elektrohemijska oksidacija metanola na leguri Pt3Co
(Serbian Chemical Society, Belgrade, 2003)
The electrochemical oxidation of methanol was investigated on a Pt3Co bulk alloy in acid solutions. Kinetic parameters such as transfer coefficient reaction orders with respect to methanol and H+ ions and energy of activation ...
Influence of SA procedure welding parameters on mechanical properties spiral welded steel tubes API X60 / Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2009)
The selection of steel, the dimensions and methods of seam welded steel tubes fabrication are closely connected to the function of tube as a whole structure in specific working conditions, for a calculated service life. ...
The representative particle of copper powder and branch of copper dendrites / Reprezentativna čestica bakarnog praha i grananje dendrita bakra
(Serbian Chemical Society, 2002)
Electrochemically deposited copper powders, which are formed of particles of different size and morphology, are characterized by some properties like specific surface and apparent density. Aprocedure of the determination ...
Modification of Corona Pretreated Polyester fabrics with Colloidal TiO2 Nanoparticles for Imparting Specific Properties
(Institute of Textile Machinery and High Performance Materials Technology (ITM), Dresden, 2008)
This study is aimed to highlight the possibility of using a corona treatment for fiber surface activation, which can facilitate the loading of colloidal TiO2 nanoparticles onto the polyester fabrics and thus improve their ...
The Antimicrobial Efficiency of Cotton and Polyester Fabrics Loaded with Silver Nanoparticles
(2nd International Scientific Conference Textiles of the Future, 13-14 November, 2008, Kortrijk, Belgium, 2008)
In this study, antimicrobial efficiency and its laundering durability on cotton and polyester fabrics loaded with colloidal Ag nanoparticles was evaluated. The influence of the presence of Ag nanoparticles on the color ...
The Antimicrobial Activity of Hemp fabrics Modified with Silver Nanoparticles
(Proc. 2nd Aachen-Dresden International Textile Conference, 4-5 December, 2008, Dresden, Germany, 2008)
The aim of this study was to investigate the antimicrobial properties of hemp fabrics loaded with colloidal Ag nanoparticles. The influence of initial concentration of Ag colloids on the antimicrobial efficiency of hemp ...
Crosslinked polyurethanes based on hyperbranched polymers / Umreženi poliuretani na bazi hiperrazgranatih polimera
(Association of Chemical Engineers of Serbia, 2008)
In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated. For the synthesis of these crosslinked PUs two different ...
Direct observation of confined acoustic phonons in the photoluminescence spectra of a single CdSe-CdS-ZnS core-shell-shell nanocrystal
(Amer Physical Soc, College Pk, 2008)
We report on the direct observation of confined acoustic phonons in the photoluminescence spectra of single CdSe-CdS-ZnS nanocrystals, whose ligands were exchanged to poly(ethylene oxide) (PEO) before they were embedded ...
Investigation of mechanism and kinetics of chalcopyrite concentrate oxidation process
(Croatian Metallurgical Society, 2008)
The oxidation process of chalcopyrite concentrate "Rudnik" (Serbia) was investigated by DTA-TG measurements under air conditions in the temperature range of 298 - 1173 K, as well as by XRD analysis of the oxidation products ...
New directions in hemp spinning / Novi pravci u predenju vlakna konoplje
(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2003)
If hemp, besides flax the only textile fiber that Europe must not import, is ever to regain its lost ground in new circumstances of comfort and ecology, it must be through development of new products and new end uses. This ...