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排序方式: 共有232条查询结果,搜索用时 15 毫秒
1.
G. A. Sokol'skii V. M. Pavlov S. A. Agafonov I. L. Knunyants 《Chemistry of Heterocyclic Compounds》1973,9(2):164-167
Hexafluoroisobutenylidene sulfate is a sulfotrioxidizing agent with respect to various olefins; methylenemethionic acid is formed in the case of ethylene, while the corresponding-sulfones are formed in the case of tetrafluoroethylene and vinylidene fluoride. 2,2-Difluoro-2-hydroxy-ethanesulfonic acid sultone is characterized by a capacity for anionotropic transformations; a number of sulfoacetic acid derivatives were obtained on the basis of this sultone.See [1] for communication III.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 178–182, February, 1973. 相似文献
2.
Bubukin I. T. Agafonov M. I. Rakut’ I. V. Pankratov A. L. Yablokov A. A. Troitsky A. V. Priymak A. S. Gorbunov R. V. 《Radiophysics and Quantum Electronics》2019,62(7-8):562-569
Radiophysics and Quantum Electronics - We discuss the results of the atmospheric absorption studies on the territory of the Kara-Dag radio astronomy station in Crimea in the millimeter-wavelength... 相似文献
3.
I. A. Yamanovskaya T. V. Gerasimova A. V. Agafonov 《Russian Journal of Inorganic Chemistry》2018,63(9):1125-1130
The paper reports the results of using polymer-colloid complexes in solutions in order to control textural properties of mesoporous aluminium oxide in the sol–gel synthesis process. Polyethyleneimine, cetyltrimethylammonium chloride, as well as a polymer-colloid complex formed by their interaction in the solution were used as pore-forming templates. The mesoporous aluminium oxides synthesized in this work had a narrow pore size distribution and a large surface area. The application of different templates made it possible to affect the mechanism of supramolecular self–assembly of materials, namely by controlling the pore sizes. When the polymer-colloid complex was used as the template for the formation of aluminium oxide nanostructures, 6 nm cylindrical pores were formed, while using individual templates led to the formation of 8–13 nm mesopores. Identifying the formation mechanism of a certain pore type will make it possible to use these materials in specific reactions. 相似文献
4.
D. A. Sakseev E. M. Ershenko S. V. Baryshev A. V. Bobyl’ D. V. Agafonov 《Technical Physics》2011,56(1):127-131
Fundamental differences between standard photography and micro-object imaging in a scanning electron microscope are analyzed.
Basic ways of taking stereograms with a scanning electron microscope by the object rotation method and the observing technique
are described. It is shown that stereo photography correctly estimates the spatial arrangement of features in objects with
an intricate microrelief and makes it possible to very accurately calculate the depth of this relief (which sometimes exceeds
the field of vision at large magnifications) in wide limits (from 0.5 to 100.0 μm). Using the developed surface of Li4Ti5O12 oxide and GaAs whiskers as examples, a stereographic computational method based on linear measurements of the same area on
the object before and after rotation is demonstrated. 相似文献
5.
Sirotkin N. A. Khlyustova A. V. Titov V. A. Agafonov A. V. 《Plasma Chemistry and Plasma Processing》2022,42(1):191-209
Plasma Chemistry and Plasma Processing - The novel three-electrode underwater pulse discharge excited by two independent high-voltage sources was used for the synthesis of W-Mo mixed oxide... 相似文献
6.
Kompan M. E. Agafonov D. V. Bursian A. E. Dmitriev D. S. Mikryukova M. A. 《Physics of the Solid State》2016,58(12):2555-2559
Physics of the Solid State - The heats of wetting have been measured experimentally for some of the solvents used for the preparation of electrolytes of supercapacitors. For the first time, the... 相似文献
7.
M. P. Telenkov Yu. A. Mityagin V. V. Agafonov K. K. Nagaraja 《Bulletin of the Lebedev Physics Institute》2015,42(12):343-345
Kinetics of intrasubband energy relaxation of electrons in the system of Landau levels lying below the optical phonon energy is studied. Extraordinary behavior of the relaxation of electronic subsystem excitation energy is detected. Despite the fact that its main channel is optical phonon emission, the total relaxation time exceeds the characteristic times of scattering on optical phonons by several orders of magnitude. 相似文献
8.
离子型共聚单体参与下的全氟丙烯酸酯无皂乳液共聚 总被引:4,自引:0,他引:4
离子型共聚单体参与下的全氟丙烯酸酯无皂乳液共聚;全氟烷基丙烯酸酯;无皂乳液;离子型共聚单体 相似文献
9.
10.