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1.
Technical Physics - Analytical models for the magnetization vector field B m in a uniaxial ferromagnetic film are studied. Some of them are found to closely approximate B m even if the quality... 相似文献
2.
A general method for solving the problem of quantization of a top is proposed that allows for finding the Hamiltonian eigenfunctions in the form of polynomials of various degree n in the Cartesian coordinates with the use of the Lamé functions. All three coordinates x, y, and z are equivalently involved in computations, as well as their relations with ellipsoidal coordinates, which makes the computations symmetric. 相似文献
3.
V. S. Antonov V. S. Letokhov A. N. Shibanov 《Applied Physics A: Materials Science & Processing》1981,25(1):71-76
The paper presents the results of studies into ion desorption from the surface of adenine and anthracene molecular crystals
and anthracene molecules adsorbed on a metal as the surface is irradiated by an uv laser at λ=249, 308, and 337 nm. A sharp
increase in molecular ion yield has been revealed with a decrease in radiation wavelength down to 249 nm. At this wavelength
the effect of molecular ion desorption is observed at the radiation intensity of 20∶50 kW/cm2 and pulse duration of 20 ns, it cannot be explained by thermal mechanisms. The initial velocity distribution of photoions
is nonthermal by character, with maximum velocity of 2·105 cm/s in case of adenine. The mechanisms responsible for the effect observed are discussed. 相似文献
4.
5.
N. V. Antonov 《Journal of Mathematical Sciences》1989,47(2):2367-2372
The scaling function is calculated in the framework of the renormalization group approach to the theory of developed turbulence for the velocity correlator to the second order in the -expansion.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 164, pp. 3–9, 1987.The author thanks L. Ts. Adzhemyan, A. N. Vasil'ev, and M. Gnatich for helpful discussions. 相似文献
6.
Dmitrieva Z. T. Bondaletov V. G. Antonov I. G. Chernov E. B. 《Russian Journal of Applied Chemistry》2002,75(12):1951-1955
Kinetics of absorption of a mixture of aliphatic, aromatic, and unsaturated hydrocarbons from the gas phase onto polypropylene containing 5, 18, and 40% atactic polymer in its molecular lattice was studied. The kinetic parameters, equilibrium constant, and Gibbs energy of adsorption-desorption of the hydrocarbons were determined by zero-, first-, and second-order optimization of the solution of the multiparameter equation. These parameters were correlated with the adsorbent composition and the number of sorption-desorption cycles. 相似文献
7.
V. V. Kurdakova N. G. Antonov V. V. Malev V. V. Kondrat’ev 《Russian Journal of Electrochemistry》2006,42(4):299-305
The results of a study of poly(3-octylthiophene) films with the aid of an electrochemical quartz microbalance are presented. The effect of the nature of the electrolyte anion on the determined weights of mobile species that are transported through the film/electrolyte interface is discussed. The obtained results point to a substantial role played by the solvent transport in the course of the electrode reaction. The results concerning the influence exerted by the electrode material on the observed regularities are presented. 相似文献
8.
A. A. Kiryushkin V. I. Shchelokov V. K. Antonov Yu. A. Ovchinnikov M. M. Shemyakin 《Chemistry of Natural Compounds》1967,2(4):224-229
Summary 1. A method for the separation and quantitative determination of - and -DNP derivatives of , -DABA, ornithine, and lysine has been proposed.2. A quantitative evaluation of the N N migration in four peptides of , -DABA has been carried out.3. The degree of migration in inactive polymyxin M and the DNP-peptides from a partial hydrolyzate of the inactivated antibiotic has been determined.4. The amino acid composition of the DNP peptide B1 from a partial hydrolyzate of active DNP-polymyxin M has been established.5. The quantitative aspect of the conversion of
and
diketopiperazines has been studied.Khimiya Prirodnykh Soedinenii, Vol. 2, No. 4, pp. 277–284, 1966 相似文献
9.
N. S. Vul'fson V. A. Puchkov Yu. V. Denisov B. V. Rozynov V. N. Bochkarev M. M. Shemyakin Yu. A. Ovchinnikov V. K. Antonov 《Chemistry of Heterocyclic Compounds》1967,2(4):468-474
Analysis of mass-spectra of various 2, 5-diketopiperazines gives the basic fragmentation rules for their molecular ions, and the effects of nature and positions of substituents on the process.Mass-spectrometry Laboratory of the Institute of the Chemistry of Natural Compounds.Antibiotics Chemistry Laboratory of the Institute of the Chemistry of Natural Compounds. 相似文献
10.
I. L. Odinets O. I. Artyushin E. A. Antonov P. V. Petrovskii B. I. Freger T. A. Mastryukova M. I. Kabachnik 《Russian Chemical Bulletin》1994,43(1):121-124
It was shown by31P and13C NMR spectroscopy that methyl(3-carboxy-3-oxopropyl)phosphinic acid (4-methylhydroxyphosphinyl-2-oxobutyric acid) (1) and the amide (2) of the latter exist in keto forms in non-aqueous solutions. In aqueous solutions an equilibrium between the keto,gem-diol, and enol forms has been observed. The proportions of the diol and enol forms increase as the acidity of the media increases. Silylation of acid 1 with hexamethyldisilazane gives the tris(trimethylsilyl) derivative of enol form (3) (Z- andE-isomers).Translated fromIzyestiya Akadetnii Nauk. Seriya Khimicheskaya, No. 1, pp. 125–128, January, 1994. 相似文献