Pretraživanje
Prikaz rezultata 701-710 od 1137
The effect of mechanical activation on synthesis and properties of MgAl2O4 ceramics
(Elsevier, 2019)
Magnesium aluminate, MgAl2O4 and other alumina-based spinels are ceramics with high hardness, high melting point and mechanical strenght. Spinels can also be used as dielectrics in microwave applications. The goal of this ...
NiA and NiX zeolites as bifunctional electrocatalysts for water splitting in alkaline media
(Elsevier, 2018)
NiA and NiX zeolites were prepared and characterised using XRD, FTIR and SEM, and subsequently tested as electrodes for hydrogen (HER) and oxygen (OER) evolution reactions in alkaline media. Linear sweep voltammetry and ...
Mechanochemical treatment of Serbian kaolin clay to obtain high reactive pozzolana
(Belgrade : Serbian Chemical Society, 2013)
Mechanochemical treatment of Serbian kaolin clay was carried out in a planetary ball mill using two different milling media, hardened steel or zirconia vials and balls. The samples obtained with various milling times were ...
Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics
(Elsevier, 2015)
The aim of the present study was to investigate the effect of ageing of mechanochemically synthesized clay and its TiO2composite on the simultaneous removal of Pb(II), Cd(II), Cu(II) and Zn(II) ions from acidic aqueous ...
(Perfect) Integer Codes Correcting Single Errors
(IEEE, 2018)
This letter presents a class of integer codes capable of correcting single errors. Unlike Hamming codes, the presented codes are constructed with the help of a computer. Among all codes of length up to 4096 bits, a computer ...
Far infrared properties of PbTe doped with Bismuth
(Springer Science+Business Media, 2008)
Far infrared reflectivity spectra of single crystal PbTe doped with Bi were measured and numerically analyzed using a fitting procedure based on a modified plasmon-phonon interaction model with two additional oscillators ...
Theoretical investigation of a miniature microwave driven plasma jet
(IOP Publishing, 2020)
Radio frequency driven plasma jets are compact plasma sources which are used in many advanced fields such as surface engineering or biomedicine. The MMWICP (miniature micro wave ICP) is a particular variant of that device ...
Mechanochemical synthesis and electrical conductivity of nanocrystalline δ-Bi2O3 stabilized by HfO2 and ZrO2
(Belgrade : Serbian Chemical Society, 2009)
A powder mixture of α-Bi2O3 and HfO2, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill under air, using zirconium oxide vials and balls as the milling medium. After 50 h of milling, the ...
Radiation-induced degradation of hydroxyapatite/poly L-lactide composite biomaterial
(Radiation Physics and Chemistry, 2007)
The effects of gamma irradiation on the structure and properties of hydroxyapatite/poly L-lactide (HAp/PLLA) biomaterial have been investigated. Effects of radiation on microstructure, degradation of polymer part and thermal ...
NPD in small manufacturing enterprises in Serbia
(Tehnički vjesnik, 2015)
New product development in small manufacturing enterprises on the territory of Serbia was investigated on a representative sample of micro and small enterprises covering a broad range of businesses. It was found that market ...