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111.
Fishman AI Klimovitskii AE Skvortsov AI Remizov AB 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2004,60(4):843-853
Infrared spectra (4000-250 cm-1) of the liquid, amorphous, crystalline solids and solutions in liquid krypton and Raman spectra (2500-20 cm-1) of the liquid as well as the amorphous and crystalline solids of ethylbenzene and its deuterated analogue-ethylbenzene-d(10) have been recorded. The spectra indicate that in the liquid and amorphous solids a small amount of a second conformer is present, whereas only one conformer remains in the crystalline phases. Assignments of the observed band wave numbers are discussed by comparison with normal mode wave numbers and IR and RS intensities calculated from ab initio 6-31G force fields and optimised geometries for both conformers for two species. All of the normal modes of conformers have been assigned. 相似文献
112.
A. A. Skvortsov A. M. Orlov V. A. Frolov A. A. Solov’ev 《Physics of the Solid State》2000,42(11):2054-2060
The movement of edge dislocations and the related acoustic emission of Si (111) carrying a direct current of density 0.5?5×105 A/m2 in the [110] direction are studied in the temperature range T=300–450 K. It is shown that the basic mechanism of dislocation movement is the electric wind determining the magnitude of the effective charge (per atom of the dislocation line) Z eff=0.06 (n-Si) and ?0.01 (p-Si). Matching theory with experimental data has made it possible to determine the main contribution of edge dislocations to the acoustic-emission response of the silicon samples under investigation. The characteristic transition frequencies of dislocations in n-and p-Si from one metastable state into another are found to be f max=0.1–0.5 Hz. The numerical values of the diffusion coefficient for atoms in the dislocation impurity atmosphere are estimated as 3.2×10?18 m2/s (n-Si) and 1.5×10?18 m2/s (p-Si). 相似文献
113.
de Vekki D. A. Spevak V. N. Skvortsov N. K. 《Russian Journal of Coordination Chemistry》2001,27(8):579-584
The reactions of the optically active geometric isomers of the platinum(II) complex (–)-[Pt(Me-p-TolSO)(Py)Cl2] with several nucleophilic reagents (Py, Ph3PS, Ph3P, Ph3As, and Me2SO) were studied by optical rotatory dispersion, IR spectroscopy, and 1H and 31P NMR spectroscopy. A mechanism for the reaction is proposed. 相似文献
114.
115.
Rudenko V. N. Kvashnin N. L. Lugovoi A. A. Oreshkin S. I. Popov S. M. Samoylenko A. A. Skvortsov M. N. Yudin I. S. 《Physics of Atomic Nuclei》2020,83(12):1682-1690
Physics of Atomic Nuclei - An upgraded version of the combined optoacoustic gravitational radiation detector OGRAN is considered. This underground setup located at the Baksan Neutrino Observatory... 相似文献
116.
G. P. Vlasov A. P. Filippov I. I. Tarasenko E. B. Tarabukina G. A. Pankova I. E. Il’ina A. A. Shpyrkov E. V. Skvortsova A. I. Skvortsov V. I. Vorob’ev 《Polymer Science Series A》2008,50(4):374-381
A method for preparing hyperbranched poly(L-lysine) via the polymerization of N?-carbobenzoxy-L-lysine-N-carboxyanhydride has been developed in order to regulate the molecular mass and size of this polymer and to modify amino groups of its N-terminal lysine residues. This method includes the reductive removal of an N?-carbobenzoxy group by hydrogen over activated palladium in the presence of a chain termination agent, which is the activated ether of Nα-tert-butyloxycarbonylhistidine. The structure of the polymers has been studied by capillary electrophoresis, circular dichroism, and molecular hydrodynamics. 相似文献
117.
Three classes of series in the Faber-Schauder system, differing in conditions on the character of vanishing of their coefficients,
are considered; theM-sets for these classes of series are compared. The union of uniqueness sets for these classes is studied.
Translated fromMatematicheskie Zametki, Vol. 64, No. 5, pp. 734–748, November, 1998.
This research was supported by INTAS Foundation under grant No. 94-1044. 相似文献
118.
A Kurzweil-Henstock type integral on a zero-dimensional abelian group is used to recover by generalized Fourier formulas the
coefficients of the series with respect to the characters of such groups, in the compact case, and to obtain an inversion
formula for multiplicative integral transforms, in the locally compact case.
Supported by RFFI-08-01-00669. 相似文献
119.
Raevsky O Andreeva E Raevskaja O Skvortsov V Schaper K 《SAR and QSAR in environmental research》2005,16(1-2):191-202
120.
We analyze the response of a complex quantum-mechanical system (e.g., a quantum dot) to a time-dependent perturbation phi(t). Assuming the dot to be described by random-matrix theory for the Gaussian orthogonal ensemble, we find the quantum correction to the energy absorption rate as a function of the dephasing time t(phi). If phi(t) is a sum of d harmonics with incommensurate frequencies, the correction behaves similarly to that for the conductivity deltasigma(d)(t(phi)) in the d-dimensional Anderson model of the orthogonal symmetry class. For a generic periodic perturbation, the leading quantum correction is absent as in the systems of the unitary symmetry class, unless phi(-t+tau)=phi(t+tau) for some tau, which falls into the quasi-1D orthogonal universality class. 相似文献