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pro vyhledávání: '"D. A. Svetogorsky"'
Autor:
D. A. Svetogorsky
Publikováno v:
Journal of Applied Crystallography. 23:79-81
It is shown that the cross section of small-angle neutron scattering (SANS) on an anisotropic system of point scatterers is determined by a symmetric tensor (R). The mean square radius of gyration of the system is the trace of R. A simple method is p
Autor:
D. A. Svetogorsky, A. B. Kunchenko
Publikováno v:
Liquid Crystals. 2:617-624
The experimental data of Kirste and Ohm (1985, Makromolec. Chem. rap. Commun., 6, 179) and of Keler et al. (1985, J. Phys. Lett., Paris, 46, 1065) show that the mesogenic units tend to be perpendicular to the backbone segments in thermotropic liquid-
Autor:
A. B. Kunchenko, J. Kalus, S. G. Kostromin, Yu. M. Ostanevich, D. A. Svetogorsky, V. P. Shibaev
Publikováno v:
Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics. 155:347-356
The conformation of the main chain of the comb-like liquid crystalline polysiloxane with CN-containing biphenyl side groups (average polymerization degree 63) oriented in magnetic field was investigated in the smectic phase by small angle neutron sca
Autor:
D. A. Svetogorsky, I. J. Lalov
Publikováno v:
The Journal of Chemical Physics. 80:1083-1088
Two‐quanta anharmonic spectra, namely overtones and combination bands with degenerate vibrations, in uniaxial gyrotropic crystals from point group of symmetry C3, D3, C4, D4, are investigated, with due account taken of the time inversion. The symme
Autor:
D A Svetogorsky
Publikováno v:
Journal of Physics A: Mathematical and General. 11:2349-2352
A treatment of a macromolecule's configurational partition function, with an additional factor g1/2 resulting from the momentum partition is given. An expression for g1/2 is derived in the form of multipliers, each of them depending on some neighbour