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Criteria for the determination of the stereochemistry of steroidal indolizidines
(Elsevier, 1974)
E/F-Indolizidine steroids, which represent a structural unit of Solanum alkaloids, have been synthesized and used to evaluate criteria (IR—Bohlmann bands,1a-c —hydrogenbond,2a-e NMR,3a-c mass spectra,4 kinetic studies of ...
Electron ground state in the semiconductor inversion layer and low frequency MIS capacitance
(Elsevier, 1976)
By varying the total energy and electrostatic energy functionals which represent an approximate self-consistent solution of Schrödinger's and Poisson's equation, the ground state of electrons is determined in a semiconductor ...
p-n transition capacitance
(Elsevier, 1971)
Quite general expressions for the capacitance of the inhomogeneous semiconductor structures, and not necessarily that of p-n junctions, have been derived starting with the basic concept that this capacitance is defined as ...
A new type of sesqiterpene lactone isolated from artemisia annua L. arteannuin B
(Elsevier, 1973)
The structure of a new sesquiterpene lactone, arteannuin B, isolated from Artemisia annua L. is reported.
Electric conductivity and viscosity of 1,4-benzenediol and hydroxybenzene solutions in concentrated sulphuric acid
(Elsevier, 1974)
Many authors have dealt with the formation of the complexes of 1,4-benzenediol and some metals in concentrated sulphuric acid. However, no data can be found in the literature either on the reaction of 1,4-benzenediol with ...
Investigation of the anodic processes on platinum in perchlorate and chlorate solutions by linear sweep voltammetry using the rotating double-ring electrodes
(Elsevier, 1976)
There have been several attempts to elucidate events occurring on platinum immersed into pure perchloric acid solutions, when submitted to high anodic polarisation. The polarisation curve was shown to exhibit two levels, ...
Investigation of occluded and nonoccluded synthetic zeolites. Base-catalyzed demethylation of tetramethylthionine-methylene blue on a denitrated zeolite
(Elsevier, 1972)
The adsorption of methylene blue from aqueous and non-aqueous media onto the zeolite NaA, the occluded zeolite NaANaNO3 and the denitrated zeolite NaANa2O has been investigated. Adsorption isotherms have a standard form ...
Pulsating potential electrolysis in the deposition of copper
(Elsevier, 1973)
A very low impedance circuit was constructed in order to provide a pulsating cathodic potential for a copper electrode immersed in a copper sulphate solution of the type used in copper refining. The increase in surface ...
The polarographic behavior of metal ions in molten LiNO3-KNO3 eutectic in presence of complexon III
(Elsevier, 1973)
The possibility of using complexon III as a complexing substance in the polarography of salt metls (LiNO3-KNO3 eutectic) has been investigated. Complexon III was found to form complexes with Cd, Pb, Ni and Zn ions in the ...
Platinum-iridium catalyzed titanium anode. I. Properties and use in chlorate electrolysis
(Springer Science and Business Media LLC, 1975)
The use of dimensionally stable titanium anodes activated with Pt, Ir or ruthenium oxide for electrolytic chlorate production has been investigated. Simultaneous measurements were made of the amount of noble metal at the ...