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Prikaz rezultata 11-20 od 73
The influence of fluid-mechanical characteristics of the system on the volumetric mass transfer coefficient and gas dispersion in three-phase system / Uticaj fluido-mehaničkih karakteristika sistema na zapreminski koeficijent prenosa mase i disperziju vazduha u trofaznom sistemu
(Association of Chemical Engineers of Serbia, 2014)
Distribution of gas bubbles and volumetric mass transfer coefficient, kLɑ in a three phase system with different types of solid particles at different operation conditions were studied in this paper. The ranges of superficial ...
A comparative study of the removal of lead, cadmium and zinc ions from aqueous solutions by natural and Fe(III)-modified zeolite / Uporedna analiza uklanjanja jona olova, kadmijuma i cinka iz vodenih rastvora adsorpcijom na prirodnom i Fe(III)- modifikovanom zeolitu
(Association of the Chemical Engineers of Serbia, 2014)
The main purpose of this research was to explain the differences in the adsorption mechanisms and adsorption capacities of natural and Fe(III)-modified zeolite for Pb2+, Zn2+ and Cd2+. The adsorbents were characterized ...
A comparative analysis of the selected properties of protective filtering masks / Uporedna analiza odabranih karakteristika zaštitnih maski filtrirajućeg tipa
(Association of Chemical Engineers of Serbia, 2014)
The results of comparative experimental testing of different filtering masks are presented in this study. Some of the most important functional properties have been tested on available models of Italian, French, British, ...
Temperature effect on decorative gold coatings obtained from electrolyte based on mercaptotriazole - comparison with cyanide
(Carl Hanser Verlag, Munich, 2014)
The aim of this work was to investigate the effect of temperature on the thickness, surface roughness, visual appearance and morphology of electrochemically deposited gold decorative coatings obtained from conventional ...
Investigation of forced and total degradation products of amlodipine besylate by liquid chromatography and liquid chromatography-mass spectrometry / Ispitivanje degradacionih proizvoda amlodipin-bezilata primenom tečne hromatografije i tečne hromatografije-masene spektrometrije u uslovima forsirane i potpune degradacije
(Association of the Chemical Engineers of Serbia, 2014)
An isocratic, reversed-phase liquid chromatographic method was applied for the investigation of the degradation products of amlodipine besylate under stressed conditions in solution. Amlodipine besylate stock solutions ...
Modeling of carriers mobility impact on CNT FIET current-voltage characteristics
(Natl Inst Optoelectronics, Bucharest-Magurele, 2014)
In this paper, field effect transistor with active area made of carbon nano tubes (CNT FET), is investigated. At the beginning, CNT characteristics, structure and possibilities of their implementation as a FET channel, are ...
FTIR investigation of solvent effects of N-methyl and N-tert-butyl benzamide
(Maik Nauka/Interperiodica/Springer, New York, 2014)
Infrared spectroscopy studies of N-methyl benzamide and N-tert-butyl benzamide in 12 organic solvents were undretaken to investigate solvent-solute interactions. The wavenumbers of carbonyl stretching vibration nu(C=O) in ...
Electrochemical synthesis of electroconducting polymers / Elektrohemijska sinteza elektroprovodnih polimera
(Association of Chemical Engineers of Serbia, 2014)
Electroconducting polymers from the group of synthetic metals are extensively investigated due to numerous properties perspective in practical application. These materials may be synthesized by both chemical and electrochemical ...
Synthesis, characterization and crystal structure of Cu(II) complex with a diimine-dioxime ligand, [Cu-2(LH)(2)](ClO4)(2). Influence of the weak Cu center dot center dot center dot O(perchlorate) interaction on the structure of the Cu2N2O2 metallocycle
(Srpsko hemijsko društvo, Beograd, 2014)
The diimine dioxime ligand, 3,3'-(1,4-butanediyl-dinitrilo)bis-2-pentanone, 2,2'-dioxime (LH2), containing a N-4 donor set was prepared by the Schiff base condensation of 2-hydroxyimino-3-pentanone and 1,4-diaminobutane ...
A microwave approach to the synthesis of certain 4-(substituted phenyl)-6-phenyl-3-cyano-2-pyridones
(Srpsko hemijsko društvo, Beograd, 2014)
A study of the synthesis of 4-(substituted phenyl)-6-phenyl-3-cyano-2-pyridones from ethyl 2-cyano-3-(substituted phenyl) acrylates and acetophenone is presented. The 2-pyridones were obtained using conventional as well ...