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Prikaz rezultata 21-30 od 140
Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings
(Elsevier Science Sa, Lausanne, 2004)
Three series of hyperbranched urethane-acrylates (HB-UA), based on aliphatic hyperbranched polyesters and polyethyleneglycol acrylate, were prepared and evaluated for use in UV-curable coatings. UV-curing kinetics were ...
Optimization of artificial neural network for retention modeling in high-performance liquid chromatography
(Elsevier, Amsterdam, 2004)
An artificial neural network (ANN) model for the prediction of retention times in high-performance liquid chromatography (HPLC) was developed and optimized. A three-layer feed-forward ANN has been used to model retention ...
Protective properties of epoxy coatings electrodeposited on steel electrochemically modified by Zn-Fe alloys / Zaštitna svojstva epoksidnih kataforetskih prevlaka na čeliku elektrohemijski modifikovanom Zn-Fe legurama
(Association of Chemical Engineers of Serbia, 2004)
Epoxy coatings were electrodeposited on steel and steel modified by Zn-Fe alloys using the constant voltage method. Zn-Fe alloys were electrodeposited on steel at different current densities. The effect of the Zn-Fe alloy ...
Control of microbial growth in industrial water cooling and air conditioning systems / Kontrola mikrobnog rasta u industrijskim rashladnim sistemima i sistemima za kondicioniranje vazduha
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2004)
Biological impurity in water cooling systems is a result of growth of various microorganisms (viruses, bacteria, fungi and algae). The influence of microbial processes in water cooling systems can be recognized from two ...
The influence of the solvent on organic reactivity. Part II. Hydroxylic solvent effects on the reaction rates of diazodiphenylmethane with 2-(2-substituted cyclohex-1-enyl)acetic and 2-(2-substituted phenyl)acetic acid / Uticaj hidroksilnih rastvarača na brzinu reakcije diazodifenilmetana Sa 2-(2-supstituisanim cikloheks-1-enil)sirćetnim i 2-(2-supstituisanim fenil)sirćetnim kiselinama
(Serbian Chemical Society, Belgrade, 2004)
The rate constants for the reaction of diazodiphenylmethane with 2-(2-substituted cyclohex-1-enyl)acetic acids and 2-(2-substituted phenyl)acetic acids, previously determined in seven hydroxylic solvents, were correlated ...
Characterization of dispersion strengthened copper with 3wt%Al2O3 by mechanical alloying
(International Institute for the Science of Sintering, Beograd, 2004)
The copper matrix has been dispersion strengthened with 3wt.%Al2O3 by mechanical alloying. Commercial alumina powder with an average particle size of 0.75mm was used for alloying. The mechanical alloying process was performed ...
Estimation of elastic properties of a particulate polymer composite using a face-centered cubic FE model
(Elsevier, Amsterdam, 2004)
A three-dimensional (31)) finite element (FE) unit cell model is applied to studies on the elastic properties of ceramic spherical particle-polymer composite. In this model, hydroxyapatite particles (HAp) are assumed to ...
The influence of the deposition parameters on the porosity of thin alumina films on steel / Uticaj parametara elektroforetskog taloženja praha aluminijum-oksida iz vodenih suspenzija na poroznost dobijenih tankih filmova na čeliku
(Serbian Chemical Society, Belgrade, 2004)
The influence of the deposition parameters on the porosity of thin alumina films electrophoretically deposited on steel from aqueous suspensions was investigated. The effects of the applied voltage, deposition time, ...
Lipase immobilization in a hollow fibre membrane reactor: Kinetics characterization and application for palm oil hydrolysis
(Versita, Warsaw, 2004)
Feasibility of lipase immobilization in a hydrophilic hollow fibre membrane reactor for oil hydrolysis has been demonstrated. A simple immobilization technique was applied resulting in about 155 mg m(-2) of immobilized ...
Mathematical model for exergy in the system NaCl-H2O / Matematički model za eksergiju u sistemu NaCl-H2O
(Association of Chemical Engineers of Serbia, 2004)
In this work mathematical models for the exergy and relative enthalpy of the water solution of sodium-chloride and the pure crystalline sodium-chloride where derived. The environment was defined with the temperature 20 °C, ...