Now showing items 21-30 of 35
Reactivity inversion in the NiO---O2 system
(Elsevier, 1968-08)
The rate of redistribution of carbon-14 between CO and CO2 has been investigated over NiO catalysts in the temperature range 274 [deg] to 450 [deg]C, and at pCO2/pCO ratios 0.1 to 10. Analysis of the results shows that the ...
Catalytic oxygen transfer between CO and CO2 on TiO2
(Elsevier, 1968-07)
The rate of the exchange reaction: *CO2 + CO --> *CO + CO2 was measured at atmospheric pressure in a flow reactor containing different TiO2 catalysts. The variables investigated and there range were as follows: ratio ...
Polynomial approximations of exponential integrals
(Elsevier, 1968-10)
A method is described to calculate polynomial approximations for exponential integrals. Tables of coefficients are presented for exponential integrals of the second, third and fourth order, which allow their rapid evaluation ...
Chemical graphs--V : Enumeration and proposed nomenclature of benzenoid cata-condensed polycyclic aromatic hydrocarbons
(Elsevier, 1968)
A modified definition is proposed for cata-condensed aromatic hydrocarbons. A formula is devised for the number of isomers of non-branched cata-condensed arenes in function of the number of hexagons. Proposals are made for ...
Protein-carbohydrate interaction , : XVI. The interaction of concanavalin A with dextrans from L. mesenteroides B-512-F, L. mesenteroides (Birmingham), Streptococcus bovis, and a synthetic [alpha]-(1 --> 6)--glucan
(Elsevier, 1968)
The precipitation reaction between concanavalin A, the jack-bean hemagglutinin and several dextrans has been examined by means of the quantitative precipitin technique. A synthetic linear [alpha]-(1 --> 6)--glucan did ...
Matrix elements for configuration d5 in weak octahedral field using Racah methods
(Elsevier, 1968-10)
The matrix elements of the spin--orbit and crystal field interactions in a weak-cubic-field scheme have been calculated for the d5 configuration. These matrices will be of use in the analysis of spectra of d5 complexes ...
Tumor localizing agents V. Radioiodinated pregnanes
(Elsevier, 1968-06)
Previous studies with progesterone-4-14C suggested that a radioiodinated analog might be useful for photoscanning the adrenal gland and associated tumors. 21-Iodoprogesterone was prepared by conversion of deoxycorticosterone ...