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Приказ резултата 31-40 од 78
Local film thickness and photoresponse of thin anodic TiO2 films on polycrystalline titanium
(Elsevier, 1989)
Auger depth profiling was used to determine the local film thickness of a thin anodic oxide grown on a polycrystalline Ti substrate. The oxide thickness was studied as a function of substrate crystallography and final ...
The solvent effect on the conformational equilibrium of 1,3-dichloro-5-methylcylclohexane
(Elsevier, 1985)
The conformational equilibrium has been measured for r-1,c-3-dichloro-t-5-methylcyclohexane(2) in six solvents from the 500 MHz and 400 MHz 1H NMR spectra. The room-temperature and low-temperature C1H couplings are used ...
Mass spectrometric analysis of the carbon content in the plasma of a horizontal electric arc burning in a graphite tube / Massenspektrometrische Analyse des Kohlenstoffgehaltes im Plasma einer horizontalen Bogenentladung in einem Graphitrohr
(Springer Science and Business Media LLC, 1981)
The carbon content in the plasma of a horizontal electric arc in a graphite tube, burning in air, in the presence of an inhomogeneous magnetic field has been determined. The modifications with one and two rotating arc ...
Solvent effect on conformational equilibria. Solvation energy as a function of solute position and orientation within a cavity in a dielectric medium
(Royal Society of Chemistry, 1985)
The reaction-field theory based on dipole and quadrupole interactions has been generalized, yielding an expression for the energy as a function of point dipole and quadrupole position and orientation within a spherical ...
Kerogen structural studies-oxidations with alkaline permanganate and with ferric chloride
(Elsevier, 1980)
Two oxidizing agents were used for structural studies of the kerogen from Aleksinac shale (Yugoslavia), namely: (1) alkaline potassium permanganate, and (2) acidic ferric chloride. (1) The main goal with alkaline permanganate ...
A novel pimara-8(9),15-diene from lycopus europaeus
(Pergamon Press, 1985)
Identification of a novel trioxygenated Δ8(9),15_ pimaric acid methyl ester from plant species Lycopus europaeus by means of two-dimensional 1H NMR spectroscopy (COSY and NOESY) is reported. © 1985.
Optical and electrochemical study of cation adsorption on oxide layers on gold and platinum electrodes
(Elsevier, 1985)
It has been shown that the adsorption of Bi3+ and Tl+ cations occurs on oxide layers of Au and Pt electrodes in acid solutions. The initial stages of oxide formation and reduction are inhibited. The effect increases with ...
Oxygen reduction on iron. Part III. An analysis of the rotating disk-ring electrode measurements in near neutral solutions
(Elsevier, 1989)
The kinetics of oxygen reduction were studied on iron in borate and bicarbonate buffered solutions, pH 9.8, using the rotating disk-ring method. Under these conditions O2 reduction occurs both on the oxidized surface and ...
Determination of the kinetic parameters of the oxygen reduction reaction using the rotating ring-disk electrode. Part I. Theory
(Elsevier, 1987)
A general scheme of oxygen reduction is given and analysis of the disk-ring measurements is performed. Expressions for the diagnostic criteria for such a scheme have been derived and their implications are discussed. The ...
Free-radical oxidative transformations of androst-4-ene-3β,9α,17β-triol 3,17-diacetate
(Tetrahedron, 1988)
The oxidation of androst-4-ene-3β,9α,17β-triol 3,17-diacetate (2) with lead tetraacetate resulted mainly In β-fragmentation of the C(9)-C(10) bond to give a mixture of 10α- and 10β-acetoxy-Δ4-unsaturated 9,10-seco-steroidal ...