Zobrazeno 1 - 10
of 559
pro vyhledávání: '"V.N. Tsvetkov"'
Autor:
S. S. Gurevich, S.G. Romanenko, V.N. Tsvetkov, S.L. Levin, A.A. Belash, Concern Csri Elektropribor, Jsc, St. Petersburg, Russia, B.Е. Landau
Publikováno v:
Giroskopiya i Navigatsiya. 29:69-79
25 years ago, the CSRI Elektropribor proposed to use a gimballess electrostatic gyroscope (ESG) in spacecraft attitude reference systems. The system called BIS-EG passed the first flight tests in 2004. By 2013, 20 such systems had been manufactured f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1af212dace2ca73181059828164687c0
https://doi.org/10.17285/0869-7035.0071
https://doi.org/10.17285/0869-7035.0071
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 22:185-194
On the basis of the comparison between the polymerization rates, intrinsic viscosities and molecular weights of the polymers of N-substituted maleimides and citraconimides a conclusion is drawn that the methyl group in citraconimide causes a decrease
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb325acab6faa1c0da208dcc49fd935c
https://doi.org/10.1002/polc.5070220114
https://doi.org/10.1002/polc.5070220114
Electric birefringence, conformation, and rigidity of the molecules of cellulose esters in solutions
Autor:
L. N. Andreeva, Peter N. Lavrenko, E.I. Rjumtsev, N.V. Pogodina, V.N. Tsvetkov, I.N. Shtennikova
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 44:217-235
Electro-optical properties of solutions of several cellulose esters in dioxane have been investigated. It was shown that macromolecules of these esters are characterized by high equilibrium and kinetic chain rigidity. The coincidence in signs of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d25e9045d930e6c187a4131df5451af
https://doi.org/10.1002/polc.5070440125
https://doi.org/10.1002/polc.5070440125
Autor:
S. E. Yakushkina, V.N. Tsvetkov, K. A. Andrianov, I.N. Shtennikova, V.I. Pakhomov, E. L. Vinogradov
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 23:385-391
Some fractions of cyclolinear polyphenylsiloxanes (ladder polymer) were investigated by flow birefringence, diffusion, and sedimentation in solution. By the same methods were investigated some samples of linear polymethylphenylsiloxanes (MPhS), which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e32a76a64b6000c84e25c03dd2955a35
https://doi.org/10.1002/polc.5070230146
https://doi.org/10.1002/polc.5070230146
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 16:239-246
The hydrodynamical (viscosity, diffusion, sedimentation) and optical (light scattering and flow birefringence) properties of solutions of polymers obtained by the grafting of styrene chains on poly(methyl methacrylate) and poly(butyl methacrylate) ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9fb504de7da7fb685e4cc2accd05f8e
https://doi.org/10.1002/polc.5070160121
https://doi.org/10.1002/polc.5070160121
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 331:41-47
Using the method of threshold Frederick's transitions in magnetic field were determined the values of splay orientational elastic constants K11 of the nematic dimers 4,4′-bis-cyanobiphe-nyloxyalkanes with the number n of CH2 groups in their spacers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8799cad2747e966e4a2d3c0964fc6f9
https://doi.org/10.1080/10587259908047498
https://doi.org/10.1080/10587259908047498
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 330:191-199
Orientational elastic deformations in a magnetic field were investigated in the nematic phase of polyphenylterephthaloyl-bis-(4-oxybiphenyl-4′-carbonyl), polylterephthaloyl-bis-(4-oxybiphenyl-3′-carbonyl), and their low molecular weight analogues
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7428629dcdba87996812d339b30dc33f
https://doi.org/10.1080/10587259908025591
https://doi.org/10.1080/10587259908025591
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 302:175-180
Electro-optical properties of nematics of the trimer series (bis-(4-cyanobiphenyloxyalkaneoxy)-4,4′-biphenyls) have been investigated by the method of orientational elastic deformations in electric fields. The number n of CH, groups in the oxyalkyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::464a507c096032ca31a0cc416afc2513
https://doi.org/10.1080/10587259708041826
https://doi.org/10.1080/10587259708041826
Publikováno v:
Macromolecular Symposia. 113:27-38
Electrooptical characteristics of mesogenic chain molecules in solution and in mesophase can be described in terms of intra- and intermolecular orientational orders. The value and sign of electric birefringence δn in a solution of kinetically rigid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a09853369240a8891040e80acc4b1aee
https://doi.org/10.1002/masy.19971130106
https://doi.org/10.1002/masy.19971130106
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 265:487-499
The electrooptical properties of 4,4′-bis- cyanobiphenyloxyalkanes in dioxane and benzene were investigated by the method of equilibrium electric birefringence. A non-monotonic dependence of the Kerr molar constant of these compounds on the length
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94313fe2e283c4d3d7bf225f9d620b72
https://doi.org/10.1080/10587259508041716
https://doi.org/10.1080/10587259508041716