Претраживање
Приказ резултата 31-40 од 713
Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption / Karakterizacija površinskih kiseoničnih grupa različitih karbonskih materijala Bemovom (Boehm) metodom i temperaturski programiranom desorpcijom
(Serbian Chemical Society, Belgrade, 2011)
The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N2 ...
Tube for obtaining crystals in a laboratory furnaces
(Maik Nauka/Interperiodica/Springer, New York, 2011)
A model of an air-cooled tube with a number of movable plugs, installed in a laboratory tube furnace is presented. The setup (modular "crystallization shelf-comb") allows easy regulation and simultaneous crystallization ...
Hemocompatibility and swelling studies of poly(2-hydroxyethyl methacrylate-co-itaconic acid-co-poly(ethylene glycol) dimethacrylate) hydrogels / Proučavanje hemokompatibilnosti i bubrenja hidrogelova poli(2-hidroksietil metakrilat-ko-itakonska kiselina-ko-poli(etilen glikol) dimetakrilat)
(Association of Chemical Engineers of Serbia, 2011)
In this study a novel series of hydrogels, based on 2-hydroxyethyl methacrylate (HEMA), itaconic acid (IA) and poly(ethylene glycol) dimethacrylates (PEGDMA) (of varying molecular weight and concentration) were prepared ...
Specific energy absorption capacity of glass-polyester composite tubes under static compressive loading
(Croatian Metallurgical Society, 2011)
The experimental determination of energy of glass-polyester composite tubes static fracture is done. The tubes are of defined structure and known processes of fabrication. The aim was to determine the possibility of their ...
Arsenic removal from water using low-cost adsorbents - a comparative study / Pregled savremenih metoda za uklanjanje arsena iz vode
(Serbian Chemical Society, Belgrade, 2011)
Inorganic arsenic removal from water using low-cost adsorbents is presented in this paper. Selective removal of As(III) and As(V) from water was performed with natural materials (zeolite, bentonite, sepiolite, pyrolusite ...
Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia)
(Taylor & Francis Ltd, Abingdon, 2011)
In this study, we analysed pellets from long-eared owls (Asio otus) collected from four localities in Belgrade (Serbia). The pellets contained the remains of prey, namely voles (Arvicola terrestris) and field mice (Apodemus ...
An Improvement of Analytical I-V Model for Surrounding-Gate MOSFETs
(Amer Scientific Publishers, Stevenson Ranch, 2011)
The paper presents a realistic and necessary improvement of the existing current-voltage model for surrounding-gate MOSFETs. The basic model exploits the closed-form solution of Poisson's equation and drift-diffusion model ...
The influence of quantum effects on spatial distribution of carriers in surrounding-gate cylindrical MOSFETs
(Natl Inst Optoelectronics, Bucharest-Magurele, 2010)
The previously developed model describing quantum correction of carriers' concentration spatial distribution in ultra small MOS/MOD devices has been applied to Surrounding-Gate Cylindrical MOSFETs. The inevitable role of ...
New method for synthesis of N-alkyl and N,N-dialkyl-O-ethyl and O-isopropylthiocarbamates by oxidation of ammonium salt of xhantogenic acid / Novi postupak sinteze N-alkil- i N,N-dialkil-O-etil- i O-izopropiltiokarbamata oksidacijom aminskih soli ksantogene kiseline
(Association of Chemical Engineers of Serbia, 2010)
Syntheses of N-alkyl and N,N-dialkyl-O-ethyl and O-isopropyl thiocarbamates by oxidation of ammonium salts of ethyl- and isopropylxanthogenic acid in the presence of sodium hypochlorite and hydrogen peroxide were performed. ...
Use of Candida rugosa lipase immobilized on sepabeads for the amyl caprylate synthesis: Batch and fluidized bed reactor study
(University of Catolica De Valparaiso, Valparaiso, 2010)
Lipase from Candida rugosa was covalently immobilized on Sepabeads EC-EP for application for amyl caprylate synthesis in an organic solvent system. Several solvents were tested in terms of biocatalyst stability and the ...