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21.
Kristina O. Kvashnina Anna Yu. Romanchuk Ivan Pidchenko Lucia Amidani Evgeny Gerber Alexander Trigub Andre Rossberg Stephan Weiss Karin Popa Olaf Walter Roberto Caciuffo Andreas C. Scheinost Sergei M. Butorin Stepan N. Kalmykov 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(49):18044-18044
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23.
A. V. Pulya I. I. Seifullina L. S. Skorokhod V. G. Vlasenko A. L. Trigub I. M. Rakipov 《Russian Journal of General Chemistry》2018,88(2):271-276
The systems ZnCl2–2-(7-bromo-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-1-yl)acetohydrazide (Hydr)–propan-2-ol, ZnCl2–Hydr–pyruvic acid (HPv), and Zn(CH3COO)2–Hydr–isatin(HIz)–propan-2-ol were studied. Optimal synthesis conditions were determined, and the complexes [Zn(Hydr)2Cl2], [Zn(HydrHPv)2Cl2], and [Zn(HydrIz)2] were isolated. The complexes were characterized by elemental analysis, thermogravimetry, IR spectroscopy, and mass spectrometry. The electrical conductivities of the complexes were measured. The local environment of the central atom in the coordination entity was determined by X-ray absorption spectroscopy. 相似文献
24.
A. S. Burlov Yu. V. Koshchienko V. G. Vlasenko V. V. Chesnokov Yu. V. Revinskii Ya. V. Zubavichus A. L. Trigub D. A. Garnovskii A. I. Uraev 《Russian Journal of General Chemistry》2016,86(10):2379-2384
Molecular complexes of bis(4-formyl-3-methyl-1-phenyl-1H-pyrazol-5-olato)cadmium(II) with isoquinolin-1-amine, quinolin-3-amine, 4,6-dimethylquinolin-5-amine, and quinolin-6-amine have been synthesized, and their structure was studied by IR, UV, 1H NMR, and X-ray absorption spectroscopy. Photoluminescence properties of the complexes have also been examined. 相似文献
25.
Approximation of Smooth Functions and Constants by Polynomials with Integer and Natural Coefficients
Direct theorems on the approximation of smooth functions by polynomials with integer coefficients are strengthened. First theorems on approximation by polynomials with natural coefficients are obtained. 相似文献
26.
V. N. Trigub 《Fluid Dynamics》1985,20(4):532-537
The aim of this paper is to obtain equations which, as Re , describe quasisteady viscous incompressible flows with stream surfaces that are closed only in the limit as Re , and also to examine the simpler consequences of these equations.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 4, pp. 46–51, July–August, 1985.The author wishes to thank V. Ya. Neiland for taking an interest in his work and discussing the results. 相似文献
27.
E. S. Belinskii E. R. Liflyand R. M. Trigub 《Journal of Fourier Analysis and Applications》1997,3(2):103-129
Beurling’s algebra
is considered. A* arises quite naturally in problems of summability of the Fourier series at Lebesgue points, whereas Wiener’s
algebra A of functions with absolutely convergent Fourier series arises when studying the norm convergence of linear means.
Certainly, both algebras are used in some other areas. A* has many properties similar to those of A, but there are certain
essential distinctions. A* is a regular Banach algebra, its space of maximal ideals coincides with[−π, π], and its dual space is indicated. Analogs of Herz’s and Wiener-Ditkin’s theorems hold. Quantitative parameters in an analog
of the Beurling-Pollard theorem differ from those for A. Several inclusion results comparing the algebra A* with certain Banach
spaces of smooth functions are given. Some special properties of the analogous space for Fourier transforms on the real axis
are presented. The paper ends with a summary of some open problems. 相似文献
28.
V. A. Trigub 《Technical Physics》2010,55(3):409-412
The time of accumulation of electromagnetic energy in a water drop exposed to infrared laser radiation is estimated numerically
taking into account the energy of interaction of water molecules and optical parameters of the water drop. The calculated
value of electromagnetic energy accumulation time is in good agreement with the experimental value. 相似文献
29.
R. M. Trigub 《Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences)》2009,44(4):230-242
The pointwise approximations of functions with a given modulus of continuity of their r-th derivatives on a closed interval of the real axis are done with various additional constraints. The paper attempts to
review such constraints. 相似文献
30.