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Приказ резултата 31-40 од 58
Some applications of optical fibres in medicine and disturbances in biomedical area
(5th Congress on Modern Optics, OPTIKA 1998, 1998)
The development of medical equipment, telecommunications and computer's technology provides new possibilities for diagnostic purposes. Usually, it is necessary to use optical image or noise transmission. The application ...
Electrodeposition of silver from nitrate solution: Part II. Mechanism of the effect of phosphate ions
(Springer, Dordrecht, 1998)
The mechanism of compact Ag-film formation by electrolysis from nitrate solution with addition of small amounts of phosphate ions is elucidated. It is shown that the phosphate ions exert their effect by lowering the exchange ...
Hydrogen evolution at Zn-Ni alloys
(Pergamon-Elsevier Science Ltd, Oxford, 1998)
Zn-Ni alloys were electrodeposited from a berate-citrate and TEPA bath in potentiostatic and galvanostatic regimes. Potential of electrodeposition or current density were varied and chemical composition and phase structure ...
Examination of rheological properties of fine particle dispersions as carriers for controlled drug release
(Trans Tech Publications Ltd, Durnten-Zurich, 1998)
The rheological characteristics of various systems made by mixing blood, blood serum, and drug carriers, as liposomes, lipid emulsion and polymer latex (model system for nano- particles) are reported as function of shear ...
Immobilization of lipase from Candida rugosa on a polymer support
(Springer, New York, 1998)
Lipase from Candida rugosa was immobilized by adsorption onto a macroporous copolymer support. Under optimum conditions the maximum amount of protein bound was 15.4 mg/g and the immobilization efficiency was 62%. The ...
Electrochemically deposited thin films of amorphous Fe-P alloy Part I. Chemical composition and phase structure characterization
(Elsevier Science Sa, Lausanne, 1998)
Thin Fe-P alloy films (0.5 to 25.0 mu m thick) were electrodeposited from sulfate solutions. The influences of various deposition conditions (current density, time, pH and temperature) on the composition and structure of ...
Template effect in caesium selective phenolic resins
(Kluwer Academic Publ, Dordrecht, 1998)
Two new phenolic resins have been synthesised by alkaline polycondensation of resorcinol and acetaldehyde using template polymerisation. The extraction properties of the resins have been evaluated in competitive extraction ...
Osmotic and activity coefficients of {yK(2)SO(4)+(1-y)Mg(NO3)(2)}(aq) at the temperature T = 298.15 K
(Academic Press Ltd, London, 1998)
'The osmotic coefficients of the mixed electrolyte solution {yK(2)SO(4) + (1 - y)Mg(NO3)(2)}(aq) have been measured by the isopiestic method, at the temperature T = 298.15 K. The activity coefficients of K2SO4 and Mg(NO3)(2) ...
Synthesis of cordierite powder performed under the conditions of periodic ultrasonic fields activity
(Trans Tech Publications Ltd, Durnten-Zurich, 1998)
In this article, the influence of periodic physical field, on the given system, is presented by the example of the ultrasonic spraying of various aerosol precursors used for ceramic powder synthesis. A general model, ...
Synthesis and rheological study of some maleic acid and fumaric acid stereoregular polyesters, 10 - Synthesis and characterization of alpha,omega-dihydroxyoligo(alkylene maleate)s
(Wiley-VCH Verlag Gmbh, Weinheim, 1998)
alpha,omega-Dihydroxyoligo(alkylene maleate)s with molecular weights ranging from 1500 to 4000 were prepared by polycondensation, in 1-methyl-2-pyrrolidone at 105 degrees C, of potassium maleate and 1,4-dibromobutane, ...