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Приказ резултата 241-250 од 308
Alkylation of N-ethyl-2-phenylacetamide with benzyl halides
(Serbian Chemical Society, Belgrade, 1996)
Alkylations of N-ethyl-2-phenylacetamide with benzyl halides (chloride, bromide and iodide) in the presence of powdered KOH were carried out in order to establish the possible reaction products as well as to ascertain ...
The influence of permanent dipole moments on second harmonic generation in asymmetric semiconductor quantum wells
(Elsevier, Amsterdam, 1997)
The influence of permanent dipole moments on intersubband double resonance second harmonic generation in asymmetric quantum wells is analyzed. It is found that in realistic QWs matched for 10.6 mu m pump the permanent ...
Phase-transfer allylation of N-ethylphenylacetamide
(Russian Journal of Organic Chemistry, 1998)
A novel open framework zincophosphate: Synthesis and characterization
(Elsevier Science Inc., 1995)
The crystallization of a reactive zincophosphate gel (which may contain Co(ll) component) in the presence of sodium cations at ambient temperature and pressure yielded products (abbreviated ZnPO-HEX or CoZnPO-HEX) with a ...
The Influence of Surfactants on Enzymatic Treatment of Wool
(Proc. XXVII Jornadas Del CED / XXVII CED Meeting on Surfactants, 1997)
UTICAJ EKSPERIMENTALNIH USLOVA NA ODREĐIVANJE JEDNOCIKLIČNIH KARAKTERISTIKA PREĐA PRI ISTEZANJU / INFLUENCE OF EXPERIMENTAL CONDITIONS ON DETERMINATION OF ONE - CYCLIC YARN CHARACTERISTICS AT EXTENSION
(Savez inženjera i tehničara tekstilaca Srbije, 1999)
Ispitivane su jednociklične karakteristike pređa pri istezanju. Primenjen je postupak sa konstantnim opterećenjem u prvoj fazi ciklusa opterećenje - rasterećenje - odmor. Upoređivani su rezultati određivanja relaksacionih ...
A novel open-framework sodium zincophosphate with isomorphous cobalt(II) substitution
(Royal Society of Chemistry, 1995)
A novel anionic cobalt-substituted zincophosphate framework with a hexagonal unit cell of composition Na6[Co0.2Zn0.8PO4]6·9H2O is synthesised and its crystal structure determined by single crystal X-ray diffraction.
Multiaxial determination of the resistance to creasing of clothing wool fabrics
(Emerald Group Publishing Limited, Bradford, 1999)
In this paper, values of deformation components (elastic, viscoelastic, plastic) of clothing wool fabrics by measuring the crease recovery angle in various directions to the warp direction (0°-warp, 30°, 45°, 60°, and ...
The structure of CoSAPO-34, containing i-propylamine as a template
(Butterworth-Heinemann, 1991)
The crystal structure of a cobalt silicoaluminophosphate, CoSAPO-34, is reported. The crystals belong to the rhombohedral R3 space group with unit cell parameters a = 13.797(7) and c = 14.898(7) A. The final R index was ...
A Kinetic Study of the System Phthalocyanine-Copper(II) Chloride-Sulfuric Acid
(Elsevier, 1990)
In solutions of phthalocyanine, H2Pc, (c = 1–3 × 10−5 mol dm−3) and copper(II) chloride (c ≈ 10−3 mol dm−3) in sulfuric acid (c = 16–18 mol dm−3), two pseudo first-order reactions take place: (1) decomposition of H2Pc; (2) ...