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1.
Sizova A. A. Grintsevich S. A. Kochurin M. A. Sizov V. V. Brodskaya E. N. 《Colloid Journal》2021,83(3):372-378
Colloid Journal - Grand canonical Monte Carlo simulations were performed to study the occupancy of structure I multicomponent gas hydrates by CO2/CH4, CO2/N2, and N2/CH4 binary gas mixtures with... 相似文献
2.
A. N. Sizov 《Journal of Applied Mechanics and Technical Physics》1975,16(4):528-534
One of the main factors affecting the dynamics of homogeneous solution type pulse reactors is the formation of gas bubbles on the fission-fragment tracks [1, 2]. The behavior of the reactor depends very considerably on the size (10?5 cm) and growth rate of these bubbles [2], and it is, accordingly, a very important matter to study these properties. One convenient means of doing this lies in the acoustic method. The behavior of gas bubbles in the field of a sound wave has been studied in a large number of papers and reviews [3, 4]. In this paper we shall see the approximation of a sound wave of small amplitude to consider the dissipation of sound-wave energy in a gas bubble, at the same time allowing for inertia, surface tension, viscosity, heat transfer, and the diffusion of gas through the surface of the bubble. 相似文献
3.
4.
Terahertz detectors and focal plane arrays 总被引:1,自引:0,他引:1
Terahertz (THz) technology is one of emerging technologies that will change our life. A lot of attractive applications in
security, medicine, biology, astronomy, and non-destructive materials testing have been demonstrated already. However, the
realization of THz emitters and receivers is a challenge because the frequencies are too high for conventional electronics
and the photon energies are too small for classical optics. As a result, THz radiation is resistant to the techniques commonly
employed in these well established neighbouring bands. 相似文献
5.
E. V. Tatarnikova V. V. Sizov A. V. Aleksandrov I. V. Tselinskii 《Russian Journal of Organic Chemistry》2009,45(10):1523-1527
N-Nitrobenzimidazol-2-ones readily undergo rearrangement to C-nitro derivatives on heating in various solvents (ethyl acetate, butyl acetate, acetonitrile, acetone, dioxane, o-dichlorobenzene, anisole, acetic acid). This rearrangement was used to develop a procedure for the synthesis of 4,5,6,7-tetranitro-1,3-dihydrobenzimidazol-2-one
in high yield (90–96%) by nitration of 1,3-dihydrobenzimidazol-2-one, as well as of 5,6-dinitro- and 4,5,6-trinitro-1,3-dihydrobenzimidazol-2-ones,
with a small excess of concentrated nitric acid in a mixture with acetic anhydride and acetic acid at 50–60°C. 相似文献
6.
B. M. Bulychev T. M. Zvukova A. I. Sizov A. F. Aleksandrov Yu. A. Korobov M. V. Kanzyuba A. V. Khomich 《Russian Chemical Bulletin》2010,59(9):1724-1728
The diamond phase precursor, viz., poly(naphthalenehydrocarbyne) (1), was prepared. Its disordered structure is built of CH fragments with sp3-hybridized carbon atoms, and arene fragments are inserted in the structure. The use of 1 in the process of diamond layer deposition makes it possible to prepare highly qualitative thin diamond coatings with low
roughness and good optical properties. 相似文献
7.
The molecular dynamics method is employed to study hydrates of methane (sI), and krypton hydrate (sII), as well as an ice nanocluster in a supercooled water shell. The main attention is focused on the local structure and the mechanical state of two-phase nanosized systems, which is described using the local pressure tensor. Analysis of the temperature dependence of the local pressure allows one to compare two possible mechanisms responsible for the anomalous stability of gas hydrates at ambient pressure. According to the first mechanism, the water shell plays the role of a barrier that prevents the gas from escaping from the hydrate core. The second mechanism implies that the water shell generates additional pressure, which transfers the hydrate to a thermodynamically stable state. Results of molecular dynamics simulation indicate that both mechanisms are simultaneously involved in the stabilization of the hydrate nanocluster. 相似文献
8.
Dem’yanov S. A. Kartanov S. A. Kolesov V. F. Korablev S. A. Lopukhov N. V. Pikulev A. A. Pluzyan K. G. Sizov A. N. 《Physics of Atomic Nuclei》2021,84(8):1459-1478
Physics of Atomic Nuclei - The results of complex calculation of the solution pulsed nuclear reactor (PNR) VIR-2M are presented. The simulation of the fuel solution dynamics is described, and... 相似文献
9.
An improved method was developed for the synthesis of ethyl esters of 2-substituted 4- ketopentanoic acids by the alkylation of CH2
(X)CO
2
Et using chloroacetone in the liquid- solid KOH (K
2CO3
or Na
2CO3
DMF-PhCH
2
(Et)
3
NCl system.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 473–474, February, 1990. 相似文献
10.
Lopatin S. I. Semenov G. A. Baranovskii V. I. Shugurov S. M. Sizov V. V. 《Russian Journal of General Chemistry》2001,71(9):1342-1346
Vapor formation in the systems CaO-B2O3 and SrO-B2O3 was studied by high-temperature mass spectrometry. Equilibria involving gaseous calcium and strontium metaborates were studied. Standard enthalpies of formation and atomization of the molecules CaB2O4(gas), CaBO2(gas), SrB2O4(gas) and SrBO2(gas) were determined. 相似文献