Zobrazeno 1 - 10
of 19
pro vyhledávání: '"G. E. Karnaukh"'
Publikováno v:
Russian Journal of Physical Chemistry B. 15:772-776
Autor:
G. E. Karnaukh
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 85:880-884
Conditions under which spin exchange (and thus exchange spin waves) can occur are described. Kinetic equations are obtained for these processes. It is shown that these conditions and equations describe exchanges between any identical quantum objects.
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 85:894-897
A theory is proposed for signals of the decay of free induction and the primary echo in linear flexible-chain polymers containing isolated groups of dipole-coupled three spins with arbitrary constants of dipole–dipole interaction. A new way of calc
Publikováno v:
Russian Journal of Physical Chemistry B. 14:290-297
The kinetic equation for the NMR spectra of solids containing isolated three-spin groups with arbitrary dipole–dipole interaction constants was derived. Analytical expressions for signals of free induction decay and solid echo for a system of three
Publikováno v:
Applied Magnetic Resonance. 51:155-163
The suggested approach allowed us to derive analytical expressions for modeling the shape of solid-echo signal and its time evolution for a system of three-spin groups with arbitrary constants of dipole–dipole interaction (DDI) in solids. Our metho
Publikováno v:
Russian Chemical Bulletin. 65:2494-2499
The theory of stimulated echo (SE) without magnetic field gradient is proposed. The theory made it possible for the first time to establish a relationship between the stimulated echo signal and correlation function of molecular mobility. Signals of f
Publikováno v:
Acta Physica Polonica A. 127:1128-1132
In this work the theory of free induction decay in linear and cross-linked exible polymers with a various average length of a polymeric chain in a wide temperature is represented. It is shown the change of topological structure of linear polymers wit
Publikováno v:
Russian Journal of Physical Chemistry B. 8:569-573
A general approach is proposed to calculate the attenuation of spin echo diffusion and the self-diffusion coefficients D of linear polymers with different average molecular weights M w . It was shown that the changes in the topological structure of l
Publikováno v:
Russian Journal of Physical Chemistry B. 7:548-554
Mathematical modeling is used to study the effect of isomerization of the reactant molecules on the kinetic characteristics of the initial stage of a chemical reaction within the framework of three isomerization mechanisms: unimolecular, with the for
Publikováno v:
Russian Journal of Physical Chemistry B. 7:170-176
A general approach to deriving formulas for calculating the diffusion attenuation of spin echo decay signal is developed and applied to obtaining data on random processes in linear and crosslinked polymers with different topological structures. The a