Results 171 to 180 of about 71,696 (225)

C45- and C50-carotenoids

Pure and Applied Chemistry, 1994
Abstract
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SAE 1050, SAE 1053, CEN C50, ISO C50 STEEL DATA SURVEY

Alloy Digest, 2022
Abstract 1050, 1053, C50, C50E, and C50R are wrought medium-carbon non-alloy steels that are used in the normalized, cold worked, quenched and tempered, or austempered condition. 1050, 1053, C50E, and C50R may also be flame or induction hardened.
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Thermodynamic modeling of the C50–N2 system

Russian Physics Journal
N. M. Barbin, L. V. Yakupova, D. I. Terent’ev, V. T. Kuanyshev, A. I. Burumbaev, D. I. Burumbaev   +5 more
exaly   +2 more sources

A density functional study of C50 passivation

Chemical Physics, 2006
The structural, energetic and electronic properties of D-5h C-50 before and after passivation by H and Cl are investigated using density functional theory method with GGA and LDA exchange-correlation functional. The results show that H or Cl addition can lead to structural changes and energetic stabilization.
Zijian Xu, Wei Zhang, Zhiyuan Zhu, Jiaguang Han   +3 more
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Synthesis of bacterial C50 carotenoid sarcinaxanthin

Tetrahedron, 1990
Abstract Alkylation of the distal double bond of geranyl acetate 8 with isoprene epoxide 5 has been carried out under anhydrous ZnCl 2 /nitromethane conditions to give a mixture of C 15 hydroxyprenylated compounds. The major diol acetate isomer 12 was dehydrated to the expected γ- cis synthon 17 which was converted into racemic ...
J.P. Férézou, M. Julia
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Synthesis of C50 carotenoids; the structure of decaprenoxanthin

Journal of the Chemical Society, Chemical Communications, 1977
Syntheses of functionalised derivatives of α-ionone have been developed which provide a route to the C50-carotenoid, decaprenoxanthin.
Akash K. Chopra, Bhupinder P. S. Khambay, Hugo Madden, Gerard P. Moss, Basil C. L. Weedon   +4 more
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Fullerene C50: Sphericity takes over, not strain

Chemical Physics Letters, 2005
Abstract It is commonly accepted that the most stable fullerene geometry among all possible structures built from hexagons and 12 pentagons is that with minimum strain. This implies that the most stable structure corresponds to the minimum number of adjacent pentagons. Here, we report that the fullerene C 50 and some of its endohedral derivatives do
Sergio Díaz-Tendero, Manuel Alcamí, Fernando Martín   +2 more
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Theoretical study of fullerene C50 and its derivatives

Journal of Molecular Structure: THEOCHEM, 2000
Abstract The electronic and structural properties of three fullerene isomers of C 50 and their derivatives are studied at the HF/3-21G and B3LYP/3-21G levels, respectively. Of the three structures, two have D 5 h symmetry [ D 5 h (I)and D 5 h (II)], and the other has D 3 symmetry.
Wen Guo Xu, Yue Wang, Qian Shu Li
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ChemInform Abstract: C45‐ and C50‐Carotenoids.

ChemInform, 1995
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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Breast Tumours (ICD-O C50)

1997
The classification applies only to carcinomas. There should be histological confirmation of the disease. The anatomical subsite of origin should be recorded but is not considered in classification.
P. Hermanek, R. V. P. Hutter, L. H. Sobin, G. Wagner, Ch. Wittekind   +4 more
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