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The article is devoted to the construction of computer software for computing a Lyapunov function satisfying a certain special partial differential equation. The program is written for M-222.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 58, pp. 121–129, 1976. 相似文献
45.
Radiofrequency-discharge plasma treatment of heavy ion-irradiated poly(ethylene terephthalate) films
L. I. Kravets S. N. Dmitriev V. V. Sleptsov V. M. Elinson V. V. Potryasai O. L. Orelovich 《High Energy Chemistry》2000,34(2):116-121
The effects of treatment in a radiofrequency (RF) discharge plasma on the rate of chemical etching of the tracks made by xenon
ions (with an energy of ~1 MeV/nucleon) in poly(ethylene terephthalate) (PETP) films were investigated. The influence of plasma
treatment conditions on the structure and properties of nuclear track membranes formed by etching was studied. It was found
that the RF plasma treatment of heavy ion-bombarded PETP films leads to a decrease in etchability of both tracks and the starting
polymer matrix. The changes in track and matrix etchability due to crosslinking of the polymer surface layer were shown to
be responsible for the asymmetry of the track membrane structure. 相似文献
46.
L. I. Kravets N. E. Lizunov A. Yu. Meshalkin S. V. Robu A. M. Andriesh E. A. Akimova 《Russian Journal of Electrochemistry》2011,47(4):461-469
The structure and electrochemical properties of polyethylene terephthalate track-etched membranes were studied. The membranes
were covered with a solution of a styrene-butylmethacrylate copolymer on one side. The formation of a selective layer of copolymer
in the pores of the starting membranes led to composite membranes characterized by asymmetric conductivity in electrolyte
solutions—a rectification effect similar to the p-n transition in semiconductors. The asymmetry resulted from a considerable decrease in the pore diameter in the deposited copolymer
layer, changing the pore geometry, and was also due to the existence of an interface in the pores between the starting membrane
and the copolymer layer, having different levels of hydrophilicity. 相似文献
47.
Alexey V. Rayevsky Andrii S. Poturai Iryna O. Kravets Alexander E. Pashenko Tatiana A. Borisova Ganna M. Tolstanova Dmitriy M. Volochnyuk Petro O. Borysko Olga B. Vadzyuk Diana O. Alieksieieva Yuliana Zabolotna Olga Klimchuk Dragos Horvath Gilles Marcou Sergey V. Ryabukhin Alexandre Varnek 《Molecules (Basel, Switzerland)》2022,27(17)
New models for ACE2 receptor binding, based on QSAR and docking algorithms were developed, using XRD structural data and ChEMBL 26 database hits as training sets. The selectivity of the potential ACE2-binding ligands towards Neprilysin (NEP) and ACE was evaluated. The Enamine screening collection (3.2 million compounds) was virtually screened according to the above models, in order to find possible ACE2-chemical probes, useful for the study of SARS-CoV2-induced neurological disorders. An enzymology inhibition assay for ACE2 was optimized, and the combined diversified set of predicted selective ACE2-binding molecules from QSAR modeling, docking, and ultrafast docking was screened in vitro. The in vitro hits included two novel chemotypes suitable for further optimization. 相似文献
48.
Effect of Laser and Thermal Annealing on Optical and Structural Properties of Amorphous Metal Alloys
Kravets V. G. Kossko I. A. Kolesnik M. A. Poperenko L. V. 《Russian Physics Journal》2002,45(4):356-364
The results of ellipsometric measurements of rough and annealed amorphous alloys of 3d-transition metals (Fe, Ni, and Co) with metalloids are presented. Composition of alloys, directions of steady-state bonds between their compounds, and frequencies of the Auger electron transitions are determined by the methods of Auger spectroscopy and from the Raman spectra. Frequencies of metal-metalloid oscillations are determined and strains arising in nanoregions of the crystalline phase are obtained. Different characters of thermal and laser actions on the optical properties of alloys are established, and changes in the optical properties caused by these actions are compared. 相似文献
49.
A. M. Belonogov N. M. Mikhailov V. M. Lisitsyn V. V. Larionov L. S. Derevyagina L. M. Butkevich A. M. Nemchenko V. A. Lukin A. A. Solov'ev V. V. Tikhomirov V. V. Kisel'nik A. I. Toryanik N. A. Dolinin N. D. Tokarev A. A. Zhaksylykova A. N. Kravets I. Ya. Melik-Gaikazyan A. P. Savitskii I. S. Chukhlantseva Yu. P. Bulatov S. I. Masharov N. M. Rybalko A. G. Vaisburd D. I. Vaisburd I. D. Grigor'eva A. I. Fedosov A. S. Tonkoshkur N. I. Zimin Yu. L. Pivovarov 《Russian Physics Journal》1977,20(10):1390-1397
50.