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排序方式: 共有376条查询结果,搜索用时 203 毫秒
1.
Chumaevskii A. V. Zykova A. P. Gusarova A. V. Guryanov D. A. Rubtsov V. E. Kolubaev E. A. 《Russian Physics Journal》2022,65(2):303-311
Russian Physics Journal - The results of model experimental studies of structural-phase changes in an AA2024 aluminum alloy after friction with a counter-body of a complex configuration are... 相似文献
2.
Svarovskaya N. V. Bakina O. V. Pervikov A. V. Rubtsov K. V. Lerner M. I. 《Russian Physics Journal》2020,62(9):1580-1586
Russian Physics Journal - Using a simultaneous electrical explosion of two twisted wires, bimetallic Ti–Ag and Fe–Ag nanoparticles are synthesized, where the component ratios are... 相似文献
3.
N.?A.?Pulina V.?Yu.?KozhukharEmail author A.?S.?Kuznetsov A.?E.?Rubtsov A.?V.?Starkova 《Russian Chemical Bulletin》2017,66(8):1497-1502
New 4-aryl-2-(4-arylamino)-1-(piperazin-1-yl)but-2-ene-1,4-diones and 2-{[2-(3-R-adamantan-1-yl)-2-oxoethylidene]hydrazinyl}-4-(het)aryl-4-oxobut-2-enoic acids were synthesized and used to obtain water-soluble compounds. Their influence on the blood coagulation system was studied, which revealed compounds with a high hemostatic activity and a low acute toxicity. A relationship between structure and pharmacological effect of the synthesized compounds was established. 相似文献
4.
Yu. K. Rubtsov 《International Applied Mechanics》2006,42(7):832-841
The paper discusses the scaled-boundary method as applied to electroelastic problems. As an example, the stress-intensity
factor is calculated for a thin rectangular piezoelectric plate with an edge crack
__________
Translated from Prikladnaya Mekhanika, Vol. 42, No. 7, pp. 124–134, July 2006. 相似文献
5.
N. A. Rubtsov A. M. Shvartsburg 《Journal of Applied Mechanics and Technical Physics》1976,17(3):391-396
An investigation is conducted in the solution of a number of practical problems of the radiative and combined heat exchange in nonuniform systems having widely different physical properties. The processes of thermal interaction between the ocean and the atmosphere have been treated in the paper [1], the effect of thermal radiation on the melting and solidification of semitransparent crystals has been investigated in [2], the flow of a selectively emitting gas around the lateral surface of an object evaporating under the action of radiative heating has been discussed in [3], and heat transfer from a jet to the molten mass of glass in a glassmaking furnace tank has been investigated in [4]. The radiative and combined heat exchange between a selectively emitting liquid and a transparent heat-conducting laminar gas flow in the case of a specified external thermal radiation field is discussed in this paper. The energy conservation equations are set up taking into account the heat transfer by radiation, convection, and molecular thermal conduction. A differential approximation is used in calculating the values of the radiation fluxes. A system of fundamental computational equations is solved by the method of finite differences and iterations and by the Runge-Kutta method. The results of the calculations are presented in the form of graphs.Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 3, pp. 116–122, May–June, 1976. 相似文献
6.
A conjugate problem of radiative–convective heat transfer in a turbulent hightemperature gasdisperse flow around a thermally thin ablating plate is considered. The plate experiences intense radiative heating by an external source, which is a blackbody. The temperature fields and the distributions of heat fluxes along the plate under unsteady conditions are calculated. The data gained make it possible to examine the effect of the Stark number and phasetransition heat in the plate material on the time evolution of the thermal state of the boundarylayer medium and the plate itself being heated by a hightemperature radiation source. 相似文献
7.
N. A. Rubtsov S. D. Sleptsov N. A. Savvinova 《Journal of Applied Mechanics and Technical Physics》2006,47(3):377-383
Numerical modeling of the single-phase Stefan problem in a semitransparent layer with transparent, nonabsorbing, and partially
radiation-absorbing boundaries is performed. It is shown that at low temperatures of the medium, convection is a determining
factor on the boundary of the irradiated sample, and at high temperatures, radiation is predominant. The absence of absorption
on the boundaries of the layer leads to acceleration of the heating of the plate and considerable deceleration of melting
processes.
__________
Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 47, No. 3, pp. 84–91, May–June, 2006. 相似文献
8.
Michail I. Alymov Nikolai M. Rubtsov Boris S. Seplyarskii Victor A. Zelensky Alexey B. Ankudinov Georgii I. Tsvetkov Victor I. Chernysh 《Mendeleev Communications》2018,28(4):447-449
It was shown that the synthesis of Cu nanopowder by thermal decomposition afforded chemically purer (without oxides) and finer (specific surface value ~45 m2 g?1) product than the synthesis by chemical reduction. The latter method leads to pyrophoric nanopowders containing detectable amounts of copper oxides. 相似文献
9.
N. A. Rubtsov 《Thermophysics and Aeromechanics》2012,19(4):629-639
Model interpretation of heating and melting processes is analyzed in application to the onephase statement of Stefan problem in a flat layer of semitransparent material heated from one side, and melted by the radiation-convective method. 相似文献
10.
The recyclization of 2-{[5-aryl-2-oxofuran-3(2H)-ylidene]amino}thiophene-3-carboxylic acids with cyano-acetic
acid derivatives in the presence of t-BuOK
afforded potassium
1-cyano-3-{[5-R1-4-R2-3-(ethoxycarbonyl)-thiophen-2-yl]amino}-1-R3-5-oxo-5-arylpenta-1,3-dien-2-olates. 相似文献