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111.
R. A. Cherkasov A. R. Garifzyanov R. R. Galeev N. V. Kurnosova R. R. Davletshin S. V. Zakharov 《Russian Journal of General Chemistry》2011,81(7):1464-1469
The processes of membrane transport of ions of scandium(III), samarium(III), gadolinium(III), neodymium(III), aluminum(III),
and a number of alkali and alkaline earth metals through liquid membrane impregnated with aminophosphoryl carriers of different
structures were studied. Selectivity of bis (dialkylphosphinyl)amines towards scandium was found to be significantly higher
than the selectivity of diphosphinylpiperazine and monophosphinylamine in particular. The dependence of transfer efficiency
on the concentration of substrates and carriers was revealed. Optimal conditions for transporting rare and trace metal ions
through the membrane were found, and the mechanism of transmembrane transport was discussed. 相似文献
112.
113.
114.
L. V. Zhoga M. I. Dmitruk A. V. Gabrielyan I. L. Zhoga K. A. Zakharov 《Bulletin of the Russian Academy of Sciences: Physics》2011,75(10):1394-1398
The motions of domain walls at low stresses are known to result in the relaxation of structural over-stresses and their balancing,
while at high stresses we observe overstress increases and microcrack formation, i.e., the changing of resonance frequencies
and emerging of spurious resonances of piezoelectric elements [1, 2]. In view of the above, the influence of electromechanical
impacts on ceramics of compositions PZT-19 and PZT-35 are investigated in order to estimate the resonance curve changes. 相似文献
115.
A. N. Zakharov K. V. Oskomov S. V. Rabotkin A. A. Solov’ev N. S. Sochugov 《Technical Physics》2010,55(5):719-723
Gallium-doped zinc oxide films are deposited using an unbalanced magnetron sputtering system. The films are deposited by dc
sputtering of a conducting ceramic target in an argon atmosphere. The substrate temperature is 150°C. The film surface morphology
is studied by scanning electron microscopy and atomic force microscopy. As the degree of magnetron unbalance increases, the
electrophysical properties of the films deposited along the system axis are shown to improve, and the distribution of the
film electrical resistivity over the substrate surface becomes more uniform. 相似文献
116.
Talzi E. P. Babushkin D. E. Semikolenova N. V. Zudin V. N. Zakharov V. A. 《Kinetics and Catalysis》2001,42(2):147-153
The structures of intermediates generated by the activation of 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridineiron(II) chloride (1) with various cocatalysts, methylalumoxane (MAO), trimethylaluminum (TMA), and TMA in combination with B(C6F5)3and Ph3CB(C6F5)4, is studied by 1H and 2HNMR spectroscopy. The 1/AlMe3system exhibits a higher catalytic activity in ethylene polymerization than the 1/MAO system. The activity of the latter decreases sharply with a decrease in the amount of AlMe3in MAO. Neutral Fe(II) complexes rather than cationic intermediates are suggested to be active components in both catalytic systems. 相似文献
117.
Onorato M Osborne AR Serio M Resio D Pushkarev A Zakharov VE Brandini C 《Physical review letters》2002,89(14):144501
We study the long-time evolution of deep-water ocean surface waves in order to better understand the behavior of the nonlinear interaction processes that need to be accurately predicted in numerical models of wind-generated ocean surface waves. Of particular interest are those nonlinear interactions which are predicted by weak turbulence theory to result in a wave energy spectrum of the form of [k](-2.5). We numerically implement the primitive Euler equations for surface waves and demonstrate agreement between weak turbulence theory and the numerical results. 相似文献
118.
A mathematical model of the signal produced by an underwater explosion is used to obtain the dependence of the explosion depth on the argument Tk at which the cepstrum of the signal reaches its maximum. The algorithm evaluating the parameter Tk on the basis of the cepstral analysis of reverberation is substantiated. The proposed method of estimating the explosion depth is tested by experimental data to demonstrate its high accuracy. 相似文献
119.
A. V. Zakharov 《Russian Physics Journal》1999,42(10):881-888
Covariant Maxwell's equations of the general theory of relativity for a system of electromagnetically and gravitationally
interacting particles of the form
are averaged over ensembles of particles with consideration of their electromagnetic and gravitational interactions with
a medium. As a result, macroscopic electrodynamic equations are derived for a continuous medium in which the influence of
interactions on the macroscopic characteristics of the medium is taken into account. Various manifestations of this influence
are completely caused by effects of the general theory of relativity.
Kazan' State University. Translated from Izvestiya Vysshikn Uchebnykh Zavedenii, Fizika, No. 10, pp. 24–33. October, 1999. 相似文献
120.
L. N. Bochkarev T. A. Zheleznova A. V. Safronova M. S. Drozdov S. F. Zhil'tsov L. N. Zakharov G. K. Fukin S. Ya. Khorshev 《Russian Chemical Bulletin》1998,47(1):165-168
Triphenyl[tris(tetrahydrofuran)]ytterbium, Ph3Yb(THF)3 (1), was synthesized in high yields by the reaction of Yb with an excess of Ph2Hg or Ph3Bi in the presence of catalytic amounts of YbI2(THF)4 as well as by the reaction of Ph2Yb(THF)2 (2) with Ph2Hg or Ph3Bi. The crystal structure of complex1 was studied by X-ray structural analysis.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 163–166, January, 1998. 相似文献