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91.
The effect of a vibrational treatment on the rheological properties of highly structured oil disperse systems is studied. A maximal decrease in the rheological parameters is observed after 20-min vibrational treatment for paraffin-rich and highly resinous oils and after 5-min treatment for mazut. The vibrational treatment is shown to be the most effective for oils with an increased content of paraffins. It is revealed that the magnetic treatment decreases the congelation temperature of oil. 相似文献
92.
Chernyak A. V. Berezin M. P. Slesarenko N. A. Zabrodin V. A. Volkov V. I. Yudina A. V. Shuvalova N. I. Yarmolenko O. V. 《Russian Chemical Bulletin》2016,65(8):2053-2058
Russian Chemical Bulletin - Peculiarities of the formation of a reticular polymeric gel—electrolyte matrix based on polyethylene glycol diacrylate in a medium of ionic liquid... 相似文献
93.
94.
95.
E. G. Cherepanova Yu. A. Strelenko O. N. Yudina N. Ya. Grigor'eva A. M. Moiseenkov 《Russian Chemical Bulletin》1990,39(5):1061-1063
1H NMR spectroscopy and the PANIC program for obtaining calculated spectra were used to show that the Z-configuration of the C=C bond is retained in the conversions of 2Z-butene-1,4-diol to the corresponding monobromide and monochloride and in the reaction of this monobromide with amylmagnesium bromide in the presence of the Kochi reagent (Li2CuCl4) and with the tert-butylimine of acetaldehyde.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1180–1182, May, 1990. 相似文献
96.
F. I. Guseinov G. Yu. Klimentova N. A. Yudina O. L. Kol'tsova V. V. Moskva 《Russian Chemical Bulletin》1998,47(3):459-461
α-Halo-β-oxoaldehydes react witho-andm-phenylenediamines to give α-halo-β-oxoenamines. In the case ofo-phenylenediamine, the initially formed monoenamine undergoes concurrent intramolecular cyclization to give benzimidazole
and a halocarbonyl compound. α,α-Dihalo-β-oxoaldehydes react witho-andm-phenylenediamines according to the haloformic decomposition scheme involving formylation of amino groups.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 475–477, March, 1998. 相似文献
97.
98.
N. N. Mikheev M. A. Stepovich S. N. Yudina 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2009,3(2):218-222
The effect of the spatial distribution of a material atomic electrons on the beam energy dissipation for monoenergetic charged particles (electrons and protons) during their transport through a film target has been investigated. 相似文献
99.
O. N. Nikulicheva V. P. Fadeeva V. N. Piottukh-Peletskii L. M. Pokrovskii T. F. Bogdanova N. V. Yudina 《Russian Journal of Applied Chemistry》2005,78(8):1364-1369
The substances extracted from peats were studied by IR spectroscopy and gas chromatography-mass spectrometry. 相似文献
100.
L. N. Yudina A. M. Korolev M. I. Reznikova M. N. Preobrazhenskaya 《Chemistry of Heterocyclic Compounds》2000,36(2):144-151
The synthesis of N-methoxyascorbigen (neoascorbigen) — a natural substance from plants of the Cruciferae family — and also N-ethoxyascorbigen is described. In an acidic media under drastic conditions N-alkoxyascorbigens undergo transformations with the release of ascorbic acid and the formation of oligomers of 1-alkoxy-3-methyleneindolenine or with opening of the lactone ring, decarboxylation, and dehydration and the formation of 2-hydroxy-3-(1-alkoxy-3-indolyl)-4-hydroxymethylcyclopent-2-enone. Amides of neoascorbigen, 3-O-methylglycoside of N-ethoxyascorbigen, and the product of the reduction of N-ethoxyascorbigen by sodium borohydride were obtained for the first time.Scientific-Research Institute of the Search for New Antibiotics, Russian Academy of Medical Sciences, Moscow. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 178–186, February, 2000. 相似文献