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61.
S. A. Voloshin 《Computational Mathematics and Modeling》1996,7(2):254-257
Implicit finite-difference approximations of the quasilinear conservation law are considered. Issues of stability and convergence are discussed, and an accuracy bound is obtained.Translated from Matematicheskie Modeli Estestvoznaniya, Published by Moscow University, Moscow, 1995, pp. 157–161. 相似文献
62.
We calculate the probability of destruction of a metastable string by collisions of the Goldstone bosons, corresponding to
the transverse waves on the string. We find a general formula that allows to determine the probability of the string breakup
by a collision of arbitrary number of the bosons. We find that the destruction of a metastable string takes place only in
collisions of even number of the bosons, and we explicitly calculate the energy dependence of such process in a two-particle
collision for an arbitrary relation between the energy and the largest infrared scale in the problem, the length of the critical
gap in the string. 相似文献
63.
Voloshin MB 《Physical review letters》2010,105(20):201801
The scattering of a neutrino on atomic electrons is considered in the situation where the energy transferred to the electrons is comparable to the characteristic atomic energies, as relevant to the current experimental search for the neutrino magnetic moment. The process is induced by the standard electroweak interaction as well as by the possible neutrino magnetic moment. Quantum-mechanical sum rules are derived for the inclusive cross section at a fixed energy deposited in the atomic system, and it is shown that the differential over the energy transfer cross section is given, modulo very small corrections, by the same expression as for free electrons, once all possible final states of the electronic system are taken into account. Thus, the atomic effects effectively cancel in the inclusive process. 相似文献
64.
Abstract In molten iodine two transitions accompanied by a large increase of conductivity (σ) were found under pressure between 3 and 4 GPa. During the first transition a increases by approximately 10′ times, the volume changing very slightly or remaining constant. During the second transition a increases by 2-10 times and then is accompanied by a decrease of volume. 相似文献
65.
We argue that relatively compact charmonium states, J/ψ, ψ(2S), χc, can very likely be bound inside light hadronic matter, in particular inside higher resonances made from light quarks and/or gluons. The charmonium state in such binding essentially retains its properties, so that the bound system decays into light mesons and the particular charmonium resonance. Thus such bound states of a new type, which we call hadro-charmonium, may explain the properties of some of the recently observed resonant peaks, in particular of Y(4.26), Y(4.32–4.36), Y(4.66), and Z(4.43). We discuss further possible implications of the suggested picture for the observed states and existence of other states of hadro-charmonium and hadro-bottomonium. 相似文献
66.
A. É. Voloshin A. É. Glikin S. I. Kovalev E. B. Rudneva 《Crystallography Reports》2003,48(6):1064-1075
The results of the complex study of the morphology and defect state of the crystals of the isomorphous potassium acid phthalate-rubidium acid phthalate (KAP-RbAP) series formed in aqueous solutions are presented. The crystals are characterized by heteroepitaxial porous and solid textures formed as a result of the exchange reaction between the crystals and solution. The interaction of the KAP and RbAP crystals with saturated RbAP and KAP aqueous solutions is studied both in situ and in vitro under optical and atomic force microscopes. The results obtained are used to create a theoretical model of formation of characteristic morphological textures in liquid phase epitaxy, including their formation from the aqueous solutions of the respective salts. 相似文献
67.
L. F. Malakhova A. E. Voloshin C. C. Wilson E. B. Rudneva N. G. Furmanova V. I. Simonov 《Crystallography Reports》2003,48(1):29-34
The structures of two crystalline specimens cut out from the pyramidal and prismatic growth sectors of a K(H0.052D0.948)2PO4 single crystal have been studied by diffuse neutron scattering and precision diffuse X-ray scattering. Diffuse scattering is concentrated in the vicinity of the Bragg reflections and is practically the same in specimens cut out from different growth sectors of a single crystal. X-ray diffraction analysis using the extinction parameters provided the establishment of a higher perfection of the specimen cut out from the prismatic growth sector. The precision X-ray studies revealed different configurations of hydrogen bonds in the specimens. 相似文献
68.
The crystallization conditions for the NaH2PO4, NaH2PO4 · H2O, and NaH2PO4 · 2H2O solid phases have been established from the analysis of the phase diagram of solubility of the ternary Na2O-P2O5-H2O system in the temperature range from 0 to 100°C. Based on these data, the methods for growing sodium dihydrogenphosphate
single crystals of the above compositions are developed. The initial components for preparing mother solutions were H3PO4 and NaOH solutions taken in certain weight ratios. For the first time, NaDP, NaDP · H2O, and NaDP · 2H2O single crystals were grown on a seed by the method of temperature decrease. The habits of the NaDP and NaDP · H2O single crystals are determined.
__________
Translated from Kristallografiya, Vol. 47, No. 5, 2002, pp. 937–944.
Original Russian Text Copyright ? 2002 by Soboleva, Voloshin. 相似文献
69.
N. A. Voloshin S. O. Bezugliy E. V. Solov’eva A. V. Metelitsa V. I. Minkin 《Chemistry of Heterocyclic Compounds》2008,44(10):1229-1237
Syntheses are reported for cationic indoline spiropyrans with a quaternized pyridinium fragment in the aliphatic side chain,
which display photochromic properties in solution. The major effect of introducing a quaternized pyridinium fragment into
the benzopyran part of the spiropyran entails a significant decrease in the rate of thermal relaxation processes.
*For Communication 30 see [1].
*2Dedicated to Academician of the Russian Academy of Sciences B. A. Trofimov on his 70th jubilee.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1513-1522, October, 2008. 相似文献
70.
Yu. A. Mankelevich A. Yu. Poroykov T. V. Rakhimova D. G. Voloshin A. A. Chukalovskii A. V. Zosimov V. V. Lunin V. G. Samoilovich 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2016,90(9):1896-1902
Nonunique ozone concentrations at the output of an ozone generator under identical external conditions of barrier discharge activation of N2/O2 mixtures but with different prehistories of operating practice and employed gas mixtures are investigated theoretically. An analytical approach is developed to determine the ozone yield with regard for its heterogeneous loss. Plasma-chemical and electron kinetics in the N2/O2-mixtures are calculated numerically. The results of numerical calculations are compared to experimental data obtained by the authors. It is noted that the heterogeneous loss of ozone is the probable reason for the observed variety of behavior of О3 concentrations, depending on prehistory of ozone generator operation, along with the N2 and O2 gas flow rates and the specific active power. 相似文献