Zobrazeno 1 - 10
of 77
pro vyhledávání: '"N. V. Ushakov"'
Autor:
V. G. Ivanenko, N. V. Ushakov
Publikováno v:
Безопасность информационных технологий, Vol 23, Iss 4, Pp 21-24 (2016)
The paper proposes the DEW watermarking algorithm for copyright protection of MPEG streams. The solution to copyright protection of media content is based on embedding digital watermarks. This paper reviews different watermarking methods using discre
Externí odkaz:
https://doaj.org/article/38197dd36d0c41bca38e79d52e6e278f
Autor:
V. G. Lakhtin, M. I. Eremeeva, E. G. Gordeev, N. V. Ushakov, V. G. Bykovchenko, A. D. Kirilin, E. A. Chernyshev
Publikováno v:
Тонкие химические технологии, Vol 9, Iss 6, Pp 81-86 (2014)
γ-Trifluoropropylmethyldichlorosilane interaction with ethyl- and phenylchlorosilanes in aluminum chloride presence was studied. It is demonstrated that besides expected exchange reactions of Cl↔F at silicon, exchange reactions proceed with the pa
Externí odkaz:
https://doaj.org/article/2f4c51ea656f469b9172f9f22d89dc83
Publikováno v:
Russian Journal of Applied Chemistry. 93:1646-1654
Synthesis of monomers is the key and most labor-consuming step in the development of highly selective membrane materials. Polyalkylenesiloxanes show promise for separation of vapors of organic components from gas mixtures. The paper considers two app
Publikováno v:
Key Engineering Materials. 869:45-50
An original method for the synthesis of monomer for the preparation of a new membrane polymer, 2,2,4,4,6,6-hexamethyl-1-oxa-2,6-disyl-4-germanocyclohexane, is proposed, which allows increasing the yield of the target substance. By polycondensation po
Autor:
P. A. Storozhenko, N. G. Komalenkova, I. B. Sokolʼskaya, N. V. Ushakov, A. I. Blagushina, I. A. Gritskova, V. G. Lakhtin, D. A. Efimenko, I. A. Semyashkina
Publikováno v:
Russian Journal of General Chemistry. 90:968-976
The effect of the reactant ratio in the reaction of tetramethyldisiloxane with germanium tetrachloride and diethyl ether on the structure and reactivity of the resulting trichlorogermane–diethyl ether complexes was studied, and the products were re
Autor:
N. V. Ushakov
Publikováno v:
Russian Journal of Applied Chemistry. 93:159-166
The previously developed procedures for preparing dihydrodicyclopentadiene (DHDCPD) and tetrahydrodicyclopentadiene (THDCPD) are considered comprehensively. The performance of traditional dicyclopentadiene (DCPD) hydrogenation catalysts (Raney Ni, Pd
Publikováno v:
Key Engineering Materials. 816:233-237
The membrane gas separation is currently a competitive separation process. The heart of the membrane gas separation process is the membrane, more precisely the material from which it is made. The search for a selective material to develop a gas separ
Autor:
N. V. Ushakov
Publikováno v:
Russian Journal of Applied Chemistry. 91:728-745
The existing methods for synthesizing 2-vinylnorbornane were considered comprehensively. The efficiency and feasibility of two main synthetic routes to 2-vinylnorbornane, heterocodimerization of ethylene with norbornene and selective hydrogenation of
Publikováno v:
Petroleum Chemistry. 56:798-804
Polydimethylsildimethylene-dimethylsiloxane (PSDMS) and polydimethylsiltrimethylenedimethylsiloxane (PSTMS) have been first studied as pervaporation membrane materials for the recovery of butanol from aqueous media. New synthesis procedures that make
Autor:
A. D. Kirilin, V. G. Bykovchenko, N. V. Ushakov, M. I. Eremeeva, V. G. Lakhtin, E. G. Gordeev, E. A. Chernyshev
Publikováno v:
Russian Journal of General Chemistry. 85:595-599
Substituent exchange at the silicon atom between chloro(phenyl)silanes (PhSiCl3, MePhSiCl2, Ph2SiCl2) and chloro(ethyl)silanes (EtSiCl3, Et2SiCl2, Et3SiCl, Et4Si) in the presence of aluminum chloride has been studied. The examined compounds, except f