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Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
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Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИГД УрО РАН
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
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 Найдено в других БД:Каталог книг и продолжающихся изданий (19)Труды Института высокотемпературной электрохимии УрО РАН (33)Труды сотрудников Института органического синтеза УрО РАН (39)Труды сотрудников Института химии твердого тела УрО РАН (57)Расплавы (22)Публикации Черешнева В.А. (11)Публикации Чарушина В.Н. (17)Каталог библиотеки ИЭРиЖ УрО РАН (3)Библиометрия (1)
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1.

Вид документа : Статья из журнала
Шифр издания : 53/E 93
Автор(ы) : Ionov G. V., Dremov V. V., Karavaev A. V., Protsenko S.P., Baidakov V. G., Tipeev A. O.
Заглавие : Evaluation of metastable region boundaries for liquid and solid states in MD simulations [Электронный ресурс]
Место публикации : Journal of Physics : Condensed Matter. - 2014. - Vol.500, №17. - С. Article number 172004
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84902335896&origin=resultslist&sort=plf-f&src=s&st1=Baidakov&st2
Примечания : Bibliogr. : (6 ref) . - 26.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): diffusion--dynamic loads--liquids
Аннотация: An automatic method based on MD simulations was developed for detecting and tracing the boundaries of metastable states of superheated crystal and supercooled liquid. The main criterion of the detection of early nucleation of new phase is the self-diffusion coefficient temperature dependence. The scanning for nucleation events is performed at continuous temperature change. The set of independent nucleation events at a given pressure allows evaluation of temperature dependence of specific nucleation frequency. The collection of a large number of these calculations allows accurate approximation of pressure and temperature dependence of the specific nucleation frequency in both directions between phases. This dependence allows estimating the behavior of the free energy in the region between superheating and supercooling curves. In addition, dependence of nucleation frequency on pressure and temperature provides an opportunity to integrate the probability of nucleation under dynamic loading and subsequent release and thus to determine the likelihood of the crystallization and melting. The technique was applied to tin. MD simulation was carried out with the help of the EAM interatomic potential, well reproducing the properties of BCC phase.
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2.

Вид документа : Статья из журнала
Шифр издания : 53/M 43
Автор(ы) : Maydanik Yu. F., Chernysheva M. A., Pastukhov V. G.
Заглавие : Investigation of thermal characteristics of high-capacity loop heat pipes after a long-term storage [Электронный ресурс]
Место публикации : Energy . - 2014. - С. Article in press
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0360544214008755
Примечания : 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): capacity-- heat-transfer systems--capillary structure,
Аннотация: Repeat thermal tests of two high-capacity LHPs (loop heat pipes) have been conducted after their long-term storage under normal conditions. The first of them 1820 mm long with a capacity of 1200 W and water as a working fluid was made and first tested in 1985. The other device with a length of 2750 mm and a capacity of 800 W, which consisted of two ammonia LHPs joined in series, was made and tested for the first time in 1988. Both the devices were made of stainless steel and equipped with a titanium and nickel capillary structures. The tests, which were conducted in conditions similar to the initial ones, have shown that a long-term storage has not had any considerable impact on the LHP thermal characteristics. Such devices may be used in systems of utilization of low-potential heat and solar energy, and also for heating and cooling various objects
\\\\expert2\\nbo\\Energy\\2014, v. 74, p. 804-809.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 53/E 93
Автор(ы) : Ionov G. V., Dremov V. V., Karavaev A. V., Protsenko S.P., Baidakov V. G., Tipeev A. O.
Заглавие : Evaluation of metastable region boundaries for liquid and solid states in MD simulations [Электронный ресурс]
Место публикации : Journal of Physics : Condensed Matter. - 2014. - Vol.500, №17. - С. Article number 172004
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84902335896&origin=resultslist&sort=plf-f&src=s&st1=Baidakov&st2
Примечания : Bibliogr. : (6 ref) . - 26.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): diffusion--dynamic loads--liquids
Аннотация: An automatic method based on MD simulations was developed for detecting and tracing the boundaries of metastable states of superheated crystal and supercooled liquid. The main criterion of the detection of early nucleation of new phase is the self-diffusion coefficient temperature dependence. The scanning for nucleation events is performed at continuous temperature change. The set of independent nucleation events at a given pressure allows evaluation of temperature dependence of specific nucleation frequency. The collection of a large number of these calculations allows accurate approximation of pressure and temperature dependence of the specific nucleation frequency in both directions between phases. This dependence allows estimating the behavior of the free energy in the region between superheating and supercooling curves. In addition, dependence of nucleation frequency on pressure and temperature provides an opportunity to integrate the probability of nucleation under dynamic loading and subsequent release and thus to determine the likelihood of the crystallization and melting. The technique was applied to tin. MD simulation was carried out with the help of the EAM interatomic potential, well reproducing the properties of BCC phase.
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4.

Вид документа : Статья из журнала
Шифр издания : 53/M 43
Автор(ы) : Maydanik Yu. F., Chernysheva M. A., Pastukhov V. G.
Заглавие : Investigation of thermal characteristics of high-capacity loop heat pipes after a long-term storage [Электронный ресурс]
Место публикации : Energy . - 2014. - С. Article in press
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0360544214008755
Примечания : 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): capacity-- heat-transfer systems--capillary structure,
Аннотация: Repeat thermal tests of two high-capacity LHPs (loop heat pipes) have been conducted after their long-term storage under normal conditions. The first of them 1820 mm long with a capacity of 1200 W and water as a working fluid was made and first tested in 1985. The other device with a length of 2750 mm and a capacity of 800 W, which consisted of two ammonia LHPs joined in series, was made and tested for the first time in 1988. Both the devices were made of stainless steel and equipped with a titanium and nickel capillary structures. The tests, which were conducted in conditions similar to the initial ones, have shown that a long-term storage has not had any considerable impact on the LHP thermal characteristics. Such devices may be used in systems of utilization of low-potential heat and solar energy, and also for heating and cooling various objects
\\\\expert2\\nbo\\Energy\\2014, v. 74, p. 804-809.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 53/P 93
Автор(ы) : Protsenko S.P., Baidakov V. G., Tipeev A. O.
Заглавие : Melting line, spinodal and the endpoint of the melting line in the system with a modified Lennard-Jones potential
Место публикации : Thermophysics and Aeromtchanics. - 2013. - Vol.20, №1. - С. 93-104
Примечания : Bibliogr. : p. 104 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): lennard-jones fluid--melting line--metastable state
Аннотация: A molecular dynamics method was used to calculate the pressure p* and the internal energy e* of a liquid and a crystal in stable and metastable states in a system of 2048 particles, which interaction is described by a modified Lennard-Jones potential. For the liquid phase, calculations were performed along 13 isotherms from the range of reduced temperature T* = 0.35-3.0, and for the crystal phase, along 16 isotherms from the range T* =0.1-3.0. The thermal p* = p*(ρ*,T*) and caloric e* = e*(ρ*,T*) equations of state for liquids and crystals have been constructed. The parameters of crystal-liquid phase equilibrium have been determined from the conditions of phases coexistence at positive pressures and in the region of negative pressures, where the coexistent phases are metastable. The spinodal of a stretched liquid has been approximated. It has been found that with a temperature decrease the metastable extension of the melting line meets the spinodal of the liquid phase. The point of their meeting, the endpoint of the melting curve, is the point of termination of crystal-liquid phase equilibrium without the onset of identity of the phases
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6.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Tipeev A. O.
Заглавие : Temperature dependence of the crystal-liquid interfacial free energy and the endpoint of the melting line [Электронный ресурс]
Место публикации : Journal of Chemical Physics. - 2013. - Vol.139, №22. - С. Article number 224703
Систем. требования: http://scitation.aip.org/content/aip/journal/jcp/139/22/10.1063/1.4837695
Примечания : Bibliogr. : 47 ref. . - 25.08.2015
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): coexistence curve --interfacial stress--iynterfacial free energ
Аннотация: The crystal-liquid interfacial free energy γ has been calculated as a function of the crystal orientation in a molecular dynamics experiment in a system of Lennard-Jones (LJ) particles with a cutoff radius of the potential rc *=rc/σ=6.78 at a triple-point temperature Tt *=kBTt/ε=0. 692 and temperatures above (in the region of the stable coexistence of liquid and solid phases) and below (metastable continuation of the coexistence curve of liquid and solid phases) the temperature Tt *. At T*=Tt *, for determining γ use was made of the method of cleaving potential. The temperature dependence of γ on the crystal-liquid coexistence curve has been determined by the Gibbs-Cahn thermodynamic integration method. In the region of stable phase coexistence (Tt * T*Tt *) good agreement with the data of Davidchack and Laird [J. Chem. Phys. 118, 7651 (2003)] has been obtained with respect to the character of the temperature dependence of γ and the orientation anisotropy. In the region of metastable phase coexistence (![CDATA[T* T *Tt *) at the approach to the endpoint of the melting line (TK *
\\\\expert2\\nbo\\Journal of Chemical Physics\\2013, v.139, p.224703.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 53/P 93
Автор(ы) : Protsenko S.P., Baidakov V. G., Tipeev A. O.
Заглавие : Melting line, spinodal and the endpoint of the melting line in the system with a modified Lennard-Jones potential
Место публикации : Thermophysics and Aeromtchanics. - 2013. - Vol.20, №1. - С. 93-104
Примечания : Bibliogr. : p. 104 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): lennard-jones fluid--melting line--metastable state
Аннотация: A molecular dynamics method was used to calculate the pressure p* and the internal energy e* of a liquid and a crystal in stable and metastable states in a system of 2048 particles, which interaction is described by a modified Lennard-Jones potential. For the liquid phase, calculations were performed along 13 isotherms from the range of reduced temperature T* = 0.35-3.0, and for the crystal phase, along 16 isotherms from the range T* =0.1-3.0. The thermal p* = p*(ρ*,T*) and caloric e* = e*(ρ*,T*) equations of state for liquids and crystals have been constructed. The parameters of crystal-liquid phase equilibrium have been determined from the conditions of phases coexistence at positive pressures and in the region of negative pressures, where the coexistent phases are metastable. The spinodal of a stretched liquid has been approximated. It has been found that with a temperature decrease the metastable extension of the melting line meets the spinodal of the liquid phase. The point of their meeting, the endpoint of the melting curve, is the point of termination of crystal-liquid phase equilibrium without the onset of identity of the phases
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8.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Tipeev A. O.
Заглавие : Temperature dependence of the crystal-liquid interfacial free energy and the endpoint of the melting line [Электронный ресурс]
Место публикации : Journal of Chemical Physics. - 2013. - Vol.139, №22. - С. Article number 224703
Систем. требования: http://scitation.aip.org/content/aip/journal/jcp/139/22/10.1063/1.4837695
Примечания : Bibliogr. : 47 ref. . - 25.08.2015
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): coexistence curve --interfacial stress--iynterfacial free energ
Аннотация: The crystal-liquid interfacial free energy γ has been calculated as a function of the crystal orientation in a molecular dynamics experiment in a system of Lennard-Jones (LJ) particles with a cutoff radius of the potential rc *=rc/σ=6.78 at a triple-point temperature Tt *=kBTt/ε=0. 692 and temperatures above (in the region of the stable coexistence of liquid and solid phases) and below (metastable continuation of the coexistence curve of liquid and solid phases) the temperature Tt *. At T*=Tt *, for determining γ use was made of the method of cleaving potential. The temperature dependence of γ on the crystal-liquid coexistence curve has been determined by the Gibbs-Cahn thermodynamic integration method. In the region of stable phase coexistence (Tt * T*Tt *) good agreement with the data of Davidchack and Laird [J. Chem. Phys. 118, 7651 (2003)] has been obtained with respect to the character of the temperature dependence of γ and the orientation anisotropy. In the region of metastable phase coexistence (![CDATA[T* T *Tt *) at the approach to the endpoint of the melting line (TK *
\\\\expert2\\nbo\\Journal of Chemical Physics\\2013, v.139, p.224703.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 53/B 74
Автор(ы) : Boltachev G. Sh., Zubarev N.M.
Заглавие : Analytical model of a corona discharge from a conical electrode under saturation
Место публикации : Technical Physics. - 2012. - Vol.57, №11. - С. 1493-1502
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): conical electrode --analytical model --electric field
Аннотация: Exact partial solutions are found for the electric field distribution in the outer region of a stationary unipolar corona discharge from an ideal conical needle in the space-charge-limited current mode with allowance for the electric field dependence of the ion mobility. It is assumed that only the very tip of the cone is responsible for the discharge, i. e., that the ionization zone is a point. The solutions are obtained by joining the spherically symmetric potential distribution in the drift space and the self-similar potential distribution in the space-charge-free region. Such solutions are outside the framework of the conventional Deutsch approximation, according to which the space charge insignificantly influences the shape of equipotential surfaces and electric lines of force. The dependence is derived of the corona discharge saturation current on the apex angle of the conical electrode and applied potential difference. A simple analytical model is suggested that describes drift in the point-plane electrode geometry under saturation as a superposition of two exact solutions for the field potential. In terms of this model, the angular distribution of the current density over the massive plane electrode is derived, which agrees well with Warburg's empirical law
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10.

Вид документа : Статья из журнала
Шифр издания : 53/G 15
Автор(ы) : Galashev A. E.
Заглавие : Spectral characteristics of water clusters in the presence of nitrate ions
Место публикации : Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2012. - Vol.74, №6. - С. 655-662
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): dielectric permittivities--flexible molecules--ir absorption coefficient
Аннотация: Nitrate ion adsorption by water clusters is studied using the molecular dynamics method combined with a polarizable model of flexible molecules. It is established that successive addition of one to six NO 3 - ions to an (H2O)50 cluster decreases the averaged electrical potential related to the center of masses of water molecules. The (H2O)50 cluster retains its thermodynamic stability, provided that no more than three nitrate ions are added to it. After NO 3 - ions are adsorbed, the real and imaginary components of the dielectric permittivity and the intensity of the Raman spectrum decrease, while the intensity of the IR absorption spectrum increases. Moreover, ion adsorption by the water cluster reduces the IR absorption coefficient and refractive index
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