Претраживање
Приказ резултата 41-50 од 109
Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid
(Elsevier, Amsterdam, 2006)
Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) were synthesized. HBP of the second and the third pseudo-generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid ...
Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution
(Elsevier Science Sa, Lausanne, 2006)
Kinetics of the mild steel corrosion protection in 0.1 mol dm(-3) H2SO4 by polypyrrole coatings have been investigated by the means of electrochemical impedance spectroscopy (EIS), cyclic voltammetry, polarization measurements ...
Applicability of cubic equation of state mixing rules on correlation of excess molar volume of non-electrolyte binary mixtures - Part II
(Taylor & Francis Ltd, Abingdon, 2006)
The excess molar volume (V-E) data of the 24 binary highly non-ideal mixtures containing dicyclic ethers ( 593 data points) were correlated by the Peng - Robinson - Stryjek - Vera (PRSV) cubic equation of state (CEOS) ...
The thermal degradation of poly(diethyl fumarate)
(Elsevier Sci Ltd, Oxford, 2006)
The kinetics and mechanism of the thermal degradation of poly(diethyl fumarate) (PDEF) were studied by thermogravimetry, as well as by analysis of the thermolysis volatiles and polymer residue. The characteristic mass loss ...
Novel electrolyte for zinc-polyaniline batteries
(Elsevier Science Bv, Amsterdam, 2006)
Electrochemical behavior of zinc and polyaniline (PANI) electrode polymerized from 0.1 M HCl and 0.1 M aniline on graphite electrode, in 0.2 M ZnCl2 and 0.50 M NH4Cl (chloride electrolyte) and with addition of 0.33 M ...
Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate
(Natl Inst Optoelectronics, Bucharest-Magurele, 2006)
Bioinert metallic implants such as titanium and titanium alloys could be coated with bioactive materials with good adhesion to metal and which could be also bonded to the bone. In order to predict the mechanical behavior ...
Synthesis of N-substituted 4,6-dimethyl-3-cyano-2-pyridones under microwave irradiation
(Taylor & Francis Inc, Philadelphia, 2006)
N-substituted 4,6-dimethyl-3-cyano-2-pyridones have been prepared from acetylacetone, N-substituted cyanoacetamide, and pyperidine as catalyst under microwave irradiation without solvent. The rapid and simple method produced ...
Effect of annealing temperature on the formability of Al-Mg4.5-Cu0.5 alloy sheets
(Elsevier Science Sa, Lausanne, 2006)
Formability of Al-Mg4.5-Cu0.5 alloy sheets was tested after annealing at different temperatures (220-520 degrees C) and water quenching. The formability (normalized limiting dome heights, LDH/R) showed only a small variation ...
Fast estimation of quasi-steady states of cyclic nonlinear processes based on higher-order frequency response functions. Case study: Cyclic operation of an adsorption column
(Amer Chemical Soc, Washington, 2006)
A new method for fast approximate calculation of quasi-steady states of cyclic processes is presented. The method is based on the concept of higher-order frequency response functions. The system input is represented in the ...
Izrada termoplastičnih kompozitnih cevi metodom namotavanja. III. Proračun termičkih napona / Fabrication of thermoplastic composite pipes using tape winding process. III. Thermal Stresses Calculation
(Društvo inženjera plastičara i gumara, 2006)
Cilj rada je da se na osnovu matematičkog modela procesa namotavanja kompozitnih cevi izvrši numerička simulacija procesa, kako bi se sagledao uticaj procesnih parametara na zaostale napone u kompozitnoj cevi, odnosno na ...