Now showing items 1-10 of 87
A simple boundary condition at semiconductor-insulating substrate interface of a TFT
(Elsevier BV, 1977)
Using the Wexler, Green and Miles (WGM) procedure, a criterion is given for neglecting the electric field in insulating substrate of a Thin Film Transistor in presence of surface states. It is shown that this is fulfilled ...
Molybdenum and hydroxybenzene complexes in concentrated sulphuric acid
It is already known [1--5] that Ti, W, V, Mo and some other metals form coloured complexes with 1,4-benzenediol in concentrated sulphuric acid. We have also found that hydroxybenzene has similar properties. Papers found ...
Effect of codeposition of polymer on the morphology of electrodeposited copper
(Kluwer Academic Publishers, 1979)
Poly(4-vinyl pyridine-co-methyl methacrylate), which is soluble in water in its protonated form and insoluble as a neutral molecule, has been synthesized and introduced into an acid bath for copper deposition. Potential-sweep ...
The possibility of separating hydrogen fluoride from its gaseous mixture with silicon tetrafluoride
We report in this paper investigations of the conditions necessary to effect the selective absorption of hydrogen fluoride from its gaseous mixture with silicon tetrafluoride when that mixture is brought into contact with ...
Control of intramolecular γ-alkylation vs. α-alkylation of an αβ-unsaturated ketone: An unusual solvent effect
(Royal Society of Chemistry, 1979)
Most base-solvent combinations convert (2) into (3); γ-alkylation to yield (5) is effected by sodium hydroxide in dimethyl sulphoxide-water mixtures in which the water content is critical.
Mass spectrometric analysis of plasma composition of a D. C. arc burning in an air atmosphere / Massenspektrometrische Analyse der Plasmazusammensetzung eines Gleichstrombogens in Luft
The plasma composition of a d. c. arc burning in air was investigated by mass spectrometry. It has been found that the CO and CO2 contents result from homogenous chemical reactions and that the content of carbon is about ...
Quercetagetin 6,7,3',4'-tetramethyl ether: a new flavonol from Artemisia annua
Plant: Artemisia annua L. Source: South of Belgrade. A CHCl, extract of the whole plant yielded after chromatography a new polar flavonol, yellow crystals, mp 171-172 degrees, M+ m/e 374, C19H18O8. characterized by UV/VIS, ...
Direct solution analysis using an arc source incorporating two plasmas rotating in a graphite tube
(Elsevier BV, 1977)
As a continuation of earlier work on arc sources for the spectrochemical analysis of powdered samples, a source appropriate for multi-element analysis of trace elements in solution has been developed. The nebulized solution ...
A new type of sesqiterpene lactone isolated from artemisia annua L. arteannuin B
The structure of a new sesquiterpene lactone, arteannuin B, isolated from Artemisia annua L. is reported.
The effect of the plasma composition on characteristics of the d.c. arc—IV: Influence of lithium on an arc in nitrogen
(Elsevier BV, 1971)
The radial temperature distribution of the arc burning in nitrogen was measured when a large quantity of Li2CO3 evaporates in the arc. In comparison to the radial temperature distribution of the arc burning in nitrogen ...