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Prikaz rezultata 11-20 od 189
UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids
(Elsevier Science Sa, Lausanne, 2005)
Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) have been synthesized. HBP of the second and the third generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and ...
Electrochemical deposition and characterization of zinc-nickel alloys deposited by direct and reverse current / Elektrohemijsko taloženje i karakterizacija legura cink-nikal dobijenih konstantnom i reversnom strujom
(Serbian Chemical Society, Belgrade, 2005)
Zn-Ni alloys electrochemically deposited on steel under various deposition conditions were investigated. The alloys were deposited on a rotating disc electrode and on a steel panel from chloride solutions by direct and ...
Influence of the electrode parameters on pulse shape characteristic of gas-filled surge arresters at small pressure and inter-electrode gap values
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2005)
The aim of this paper is to present the influence of electrode system parameters on electrical breakdown of gas (electrode effect) with the purpose to improve the gas-filled surge arresters (GFSAs) protective characteristics ...
Nanotribological properties of UHMWPE/quartz composites
(6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes, 2005)
Wear of ultra-high molecular weight polyethylene (UHMWPE) and its composites is one of the main obstacles that limit the longevity of total joint replacements. Compression molded UHMWPE/quartz composites with organosiloxane ...
Linear free energy relationships of the H-1 and C-13 NMR chemical shifts of 3-methylene-2-substituted-1,4-pentadienes
(Elsevier Science Bv, Amsterdam, 2005)
Linear free energy relationships (LFER) were applied to the H-1 and C-13 NMR chemical shifts (delta(N), N=H-1 and C-13, respectively) in the unsaturated backbone of cross-conjugated trienes 3-methylene-2-substituted-1,4- ...
Effect of substituents on the C-13 chemical shifts of the azomethine carbon atom of N-(substituted phenylmethylene)-3-and-4-aminobenzoic acids
(Elsevier Science Bv, Amsterdam, 2005)
C-13 chemical shifts of the azomethine carbon atom for N-(substituted phenylmethylene)-3- and -4-aminobenzoic acids having a wide range of substituent effects, were determined in deuterated DMSO solution. Good Hammett ...
Application of Nonlinear frequency response to adsorption systems with complex kinetic mechanisms
(Springer, Dordrecht, 2005)
The paper is a contribution to formation of a library of sets of frequency response functions of different orders, for complex kinetic mechanisms typical for adsorption on bidispersed sorbents. The first and second order ...
Modeling and optimization of reliability of one redundant computer network
(EUROCON 2005 - The International Conference on Computer as a Tool, 2005)
In this paper modeling and optimization of reliability of computer network, consisted of eight computer centers which are connected in a ring, with two diagonal redundant lines, are presented. Model is developed using ...
Artificial neural network modelling of uncertainty in gamma-ray spectrometry
(Elsevier, Amsterdam, 2005)
An artificial neural network (ANN) model for the prediction of measuring uncertainties in gamma-ray spectrometry was developed and optimized. A three-layer feed-forward ANN with back-propagation learning algorithm was used ...
Amtimicrobial activity of essential oil of Melissa officinalis L., Lamiaceae / Antimikrobna aktivnost etarskog ulja Melissa officinalis L., Lamiaceae
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2005)
The antimicrobial activity of the essential oil of Melissa officinal is was investigated in this paper. The essential oil was obtained by the principle of water and steam and analyzed by GC and GC-MS using FID and MSD. The ...