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1.
E. A. Chernyshev T. L. Krasnova E. S. Abramova E. A. Abronin A. B. Petrunin A. P. Sergeev 《Russian Chemical Bulletin》1997,46(9):1582-1585
Pyrolysis of trichlorosilane (TCS) and copyrolysis of TCS with 1,3-butadiene were studied. The enthalpies and activation energies
for the reactions of the products of TCS pyrolysis were found by quantum-chemical calculations. A direct study of the pyrolysis
of TCS by mass spectrometry was carried out. Based on the thermochemical parameters found by quantum-chemical calculations
and on the results of GLC and mass spectrometry concerning the composition of the pyrolysis products, it was concluded that
the pyrolysis of TCS follows a scheme that includes formation of radicals and silylenes.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1659–1662, September, 1997. 相似文献
2.
Lytchak Alexander Petrunin Anton 《Journal of Optimization Theory and Applications》2022,194(2):636-642
Journal of Optimization Theory and Applications - We show that cyclic products of projections onto convex subsets of Hadamard spaces can behave in a more complicated way than in Hilbert spaces,... 相似文献
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A. M. Petrunin 《Journal of Mathematical Sciences》1994,72(4):3231-3233
If to every point x of a convex polyhedron M En there corresponds an open ball with center at x and radius f(x), where f is any positive function, then M can be split into simplexes so that every simplex is covered by those balls whose centers lie at the vertices of the simplexes.Translated from Ukrainskii Geometricheskii Sbornik, No. 35, pp. 110–114, 1992. 相似文献
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V. V. Popov A. P. Menushenkov Ya. V. Zubavichus A. A. Veligzhanin A. A. Yaroslavtsev R. V. Chernikov D. S. Leshchev V. F. Petrunin S. A. Korovin J. Bednarcik 《Russian Journal of Inorganic Chemistry》2013,58(3):331-337
Evolution of the nanocrystalline structure of the complex oxide Dy2HfO5 in the course of thermal annealing at temperatures to 1600°C has been studied by a combination of X-ray and synchrotron methods, including traditional and anomalous X-ray diffraction, PDF, EXAFS, and SAXS. The changes in crystallite size upon annealing of the as-synthesized amorphous precursor have been analyzed in detail. The systematic distortions of a fluorite-type perfect crystal structure (space group $Fm\bar 3m$ ) related to the nonequivalence of the local environment of the Dy and Hf cations but not resulting in formation of a pyrochlore-type cationordered structure in this system have been examined. 相似文献
7.
Vlasova K. Yu. Vanzarakshaeva S. Ch. Veselov M. M. Le-Deygen I. M. Petrunin A. V. Prusov A. N. Shuklinov A. B. Golovin Yu. I. Kabanov A. V. Klyachko N. L. 《Moscow University Chemistry Bulletin》2020,75(4):232-237
Moscow University Chemistry Bulletin - Magnetic anionic liposomes (MALip) conjugated with magnetite magnetic nanoparticles (MNPs) are developed for the controlled release of a protease inhibitor... 相似文献
8.
Hansen K Andersen JU Hvelplund P Møller SP Pedersen UV Petrunin VV 《Physical review letters》2001,87(12):123401
The exponential law is valid both for decay from a single quantum state into a continuum and for an ensemble maintained in thermal equilibrium. For statistical decay of an ensemble of isolated systems with a broad energy distribution, the exponential decay is replaced by a 1/t distribution. We present confirmation of this decay law by experiments with cluster anions in a small electrostatic storage ring. Deviations from the 1/t law for such an ensemble give important information on the dynamics of the systems. As examples, we present measurements revealing strong radiative cooling of anions of both metal clusters and fullerenes. 相似文献
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The evolution of a medium undergoing a liquid-vitrification type phase transition is represented within the framework of standard gauge theory of a viscoelastic field, where the order parameter specifies the change in behavior of the atomic system. Equations are obtained describing the space-time dependence of the transition parameter and the viscoelastic field. Soliton-like field distributions are studied in various special cases.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 15–20, November, 1987. 相似文献