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Prikaz rezultata 41-50 od 220
A novel primal-mixed finite element approach for heat transfer in solids
(Springer, New York, 2007)
A new reliable primal-mixed finite element approach for the heat transfer analysis in solids, is examined in detail. The essential contribution is that both variables of interest, temperature and heat flux, are calculated ...
Immobilization of lipase from Candida rugosa on Eupergit (R) supports by covalent attachment
(Elsevier, Amsterdam, 2006)
The present study compares the results of three different covalent immobilization methods employed for immobilization of lipase from Candida rugosa on Eupergit C supports with respect to enzyme loadings, activities and ...
Influence of chain length and degree of branching of alcohol plus chlorobenzene mixtures on determination and modelling of V-E by CEOS and CEOS/G(E) mixing rules
(Elsevier Science Bv, Amsterdam, 2008)
The densities of binary mixtures of (1-propanol, or 1-butanol, or 2-butanol, or 1-pentanol+chlorobenzene) have been measured at temperatures 288.15, 293.15, 298.15, 303.15, 308.15 and 313.15 K and atmospheric pressure while ...
Studies on oxidative modifications of cellulose in the periodate system: Molecular weight distribution and carbonyl group profiles
(Walter de Gruyter & Co, Berlin, 2007)
The effects of periodate oxidation on cellulose were studied by means of gel permeation chromatography (GPC) using multiple detection and carbonyl-selective fluorescence labeling according to the CCOA methodology profiling ...
Distribution of primordial radionuclides in surface soils from Serbia and Montenegro
(Pergamon-Elsevier Science Ltd, Oxford, 2006)
The specific activities of primordial radionuclides in soil samples from 21 different locations in Serbia and Montenegro were determined by gamma-ray spectrometry. The results obtained were compared with those from other ...
Predictive modeling of the mechanical properties of particulate hydroxyapatite reinforced polymer composites
(Wiley, Hoboken, 2002)
The influence of particle geometry and volume fraction on the mechanical properties of a hydroxyapatite (HAp) particulate reinforced polymer (poly-L-lactide and collagen) matrix composite was investigated through finite-element ...
Classification of soil samples according to geographic origin using gamma-ray spectrometry and pattern recognition methods
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Multivariate data analysis methods were used to recognize and classify soils of unknown geographic origin. A total of 103 soil samples were differentiated into classes, according to regions in Serbia and Montenegro from ...
Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti
(Carl Hanser Verlag, Munich, 2005)
Light and scanning electron microscopy (SEM), X-ray diffraction analysis, hardness and uniaxial tensile tests have been applied to study the mechanism and kinetics of aging of the Cu-5 wt.% Ni-2.5 wt.% Ti alloy under the ...
Densities and excess molar volumes of the binary 1-propanol plus chloroform and 1-propanol plus benzene and ternary 1-propanol plus chloroform plus benzene mixtures at (288.15, 293.15, 298.15, 303.15, 308.15, and 313.15) K
(Amer Chemical Soc, Washington, 2007)
Densities p and excess molar volumes V-E of the binary 1-propanol + chloroform and 1-propanol + benzene and ternary 1-propanol + chloroform + benzene mixtures have been determined. Experimental p measurements have been ...
Thermal, oxidative and radiation stability of polyimides. Part IV: Polyimides based on N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and different diamines
(Elsevier Sci Ltd, Oxford, 2007)
Polyimide resins were obtained from the reaction between N-[4-benzoyl-2-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-phenyl]-acetamide and the following compounds with terminal amino groups: urea, 4-[(4-aminophenyl)sulfonyl] aniline, ...