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Общее количество найденных документов : 60
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1.
Инвентарный номер: нет.
   
   B 16


    Baidakov, V. G.
    Extended version of the Van der Waals capillarity theory [Electronic resource] / V. G. Baidakov, G. Sh. Boltachev // Journal of Chemical Physics. - 2004. - Vol. 121, № 17. - P8594-8601
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
VAN-DER-WAALS CHAIN-MOLECULE FLUID
Аннотация: An extended version of the van der Waals capillarity theory describing the liguid-vapor interface in the temperature range from the triple to the critical point is suggested. A model functional of thermodynamic potential for a two-phase Lennard-Jones system taking into account the effect of the highest degree terms of gradient expansion has been constructed. The identity of the thermodynamic and the mechanical definition of Tolman’s length has been proved in the framework of the adopted form of functional. The properties of nuclei of the liquid and the vapor phase are described. The paper determines: the work of formation of a nucleus, density profiles, size dependences of the surface tension, and the parameter ? in the Gibbs-Tolman-Koenig-Buff equation.© 2004 American Institute of Physics.

\\\\Expert2\\NBO\\Journal of Chemical Physics\\2004, v.121, p.8594, V. G. Baidakov.pdf
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2.
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   B 16


    Baidakov, V. G.
    Extended version of the Van der Waals capillarity theory [Electronic resource] / V. G. Baidakov, G. Sh. Boltachev // Journal of Chemical Physics. - 2004. - Vol. 121, № 17. - P8594-8601
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
VAN-DER-WAALS CHAIN-MOLECULE FLUID
Аннотация: An extended version of the van der Waals capillarity theory describing the liguid-vapor interface in the temperature range from the triple to the critical point is suggested. A model functional of thermodynamic potential for a two-phase Lennard-Jones system taking into account the effect of the highest degree terms of gradient expansion has been constructed. The identity of the thermodynamic and the mechanical definition of Tolman’s length has been proved in the framework of the adopted form of functional. The properties of nuclei of the liquid and the vapor phase are described. The paper determines: the work of formation of a nucleus, density profiles, size dependences of the surface tension, and the parameter ? in the Gibbs-Tolman-Koenig-Buff equation.© 2004 American Institute of Physics.

\\\\Expert2\\NBO\\Journal of Chemical Physics\\2004, v.121, p.8594, V. G. Baidakov.pdf
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3.
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   B 16


    Baidakov, V. G.
    Singular Point of a System of Lennard-Jones Particles at Negative Pressures [Electronic resource] / V. G. Baidakov, S. P. Protsenko // Physical Review Letters. - 2005. - Vol. 95, № 1. - P015701/1-015701/4
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LENNARD-JONES FLUID
Аннотация: The method of molecular dynamics is used in a system of 2048 Lennard-Jones particles to determine the spinodal of a stretched liquid and crystal and the lines of their phase equilibrium at negative pressures. It is shown that a metastable extension of the melting line does not reach the zero isotherm, and ends on the spinodal of a stretched liquid. The point of termination of metastable liquid-crystal phase equilibrium is the singular point at a thermodynamic surface of states.

\\\\Expert2\\NBO\\Physical Review Letters\\2005. v.95, p.015701.pdf
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4.
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   B 16


    Baidakov, V. G.
    Inclusion of corrections of the highest order of smallness in the Van der Waals capillarity theory [Electronic resource] / V. G. Baidakov, G. Sh. Boltachev // High Temperature. - 2005. - Vol. 43, № 4. - P538-545
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
VAN-DER-WAALS CHAIN-MOLECULE FLUID
Аннотация: An extended version of the Van der Waals capillarity theory is suggested, which describes the liquid-vapor interface in the temperature range from the triple to critical point. A model functional of thermodynamic potential of a two-phase Lennard-Jones system is suggested, which takes into account the impact of higher terms of gradient expansion. The identity of the thermodynamic and mechanical definitions of the Tolman parameter is proved within the accepted form of the functional. The properties of the liquid and vapor phase nuclei are described. The work of nucleation, the density profiles, and the dimensional dependence of surface tension are determined.

\\\\Expert2\\NBO\\High Temperature\\2005, v.43, p.538.pdf
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5.
Инвентарный номер: нет.
   
   B 16


    Baidakov, V. G.
    Inclusion of corrections of the highest order of smallness in the Van der Waals capillarity theory [Electronic resource] / V. G. Baidakov, G. Sh. Boltachev // High Temperature. - 2005. - Vol. 43, № 4. - P538-545
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
VAN-DER-WAALS CHAIN-MOLECULE FLUID
Аннотация: An extended version of the Van der Waals capillarity theory is suggested, which describes the liquid-vapor interface in the temperature range from the triple to critical point. A model functional of thermodynamic potential of a two-phase Lennard-Jones system is suggested, which takes into account the impact of higher terms of gradient expansion. The identity of the thermodynamic and mechanical definitions of the Tolman parameter is proved within the accepted form of the functional. The properties of the liquid and vapor phase nuclei are described. The work of nucleation, the density profiles, and the dimensional dependence of surface tension are determined.

\\\\Expert2\\NBO\\High Temperature\\2005, v.43, p.538.pdf
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6.
Инвентарный номер: нет.
   
   B 16


    Baidakov, V. G.
    Singular Point of a System of Lennard-Jones Particles at Negative Pressures [Electronic resource] / V. G. Baidakov, S. P. Protsenko // Physical Review Letters. - 2005. - Vol. 95, № 1. - P015701/1-015701/4
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LENNARD-JONES FLUID
Аннотация: The method of molecular dynamics is used in a system of 2048 Lennard-Jones particles to determine the spinodal of a stretched liquid and crystal and the lines of their phase equilibrium at negative pressures. It is shown that a metastable extension of the melting line does not reach the zero isotherm, and ends on the spinodal of a stretched liquid. The point of termination of metastable liquid-crystal phase equilibrium is the singular point at a thermodynamic surface of states.

\\\\Expert2\\NBO\\Physical Review Letters\\2005. v.95, p.015701.pdf
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7.
Инвентарный номер: нет.
   
   B 93


    Bulanov, N. V.
    Characteristic features of the boiling of emulsions having a low-boiling dispersed phase [Electronic resource] / N. V. Bulanov, B. M. Gasanov // Journal of Engineering Physics and Thermophysics. - 2006. - Vol. 79, № 6. - P1130-1133
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
BOILING
Аннотация: The results of investigation of heat transfer from thin wires to a boiling emulsion, the dispersed phase of which is formed from a liquid with a boiling temperature much lower than the boiling temperature of the dispersion medium, are presented. Two variants of boiling of such an emulsion are possible: boiling of the dispersed phase alone and simultaneous boiling of the dispersed phase and dispersion medium. In the present work, only the first variant has been studied; it is distinguished by the following most important features: high superheat of the dispersed-phase droplets ?Tsup of the emulsion and a wide temperature range of bubble boiling (50–200°C). For conventional heat carriers (pure liquids and solutions), the value of ?Tsup does not exceed 1–10°C, with the bubble-boiling interval lying within the range from 5 to 20°C.

\\\\Expert2\\NBO\\Journal of Engineering Physics and Thermophysics\\2006, v.79, N 6, P.1130.pdf
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8.
Инвентарный номер: нет.
   
   B 74


    Boltachev, G. Sh.
    Properties of argon liquid-vapor interface [Electronic resource] / G. Sh. Boltachev, V. G. Baidakov // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2006. - Vol. 68, № 1. - P26-31
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ARGON
Аннотация: The short-wave cutoff boundary of the capillary wave spectrum is established. Effective thickness L b of the “bare” density profile in the interfacial layer is calculated according to experimental data on the ellipticity ratio of reflected light. The free parameters of the extended van der Waals theory of capillarity are determined. The positions of the equimolecular dividing surface and tension surface are calculated, as well as the temperature dependence of the Tolman parameter.

\\\\Expert2\\NBO\\Colloid Journal\\2006, V.68, N1,26.pdf
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9.
Инвентарный номер: нет.
   
   B 16


    Baidakov, V. G.
    Metastable extension of the sublimation curve and the critical contact point [Electronic resource] / V. G. Baidakov, S. P. Protsenko // Journal of Chemical Physics. - 2006. - Vol. 124, № 23. - P231101/1-231101/3
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SUPERHEATED LIQUIDS
Аннотация: Molecular dynamics methods have been employed in order to calculate the (p,?,T)-properties and the internal energy of gas and crystal phases in stable and metastable equilibrium coexistence states for a model system consisting of 2048 Lennard-Jones particles. Thermal and caloric equations of state and the spinodal curves of the vapor and crystal phases have been determined. A new algorithm for the computation of phase equilibrium curves is suggested. Employing this method, the sublimation curve and its metastable extension to temperatures above the triple point have been calculated. It is found that the crystal-gas phase equilibrium terminates on the spinodal of the superheated crystal. The point of contact of the sublimation line and the spinodal is a singular point of the thermodynamic surface of states of a simple system considered.

\\\\Expert2\\NBO\\Journal of Chemical Physics\\2006, v.124, p.231101.pdf
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10.
Инвентарный номер: нет.
   
   B 93


    Bulanov, N. V.
    Characteristic features of the boiling of emulsions having a low-boiling dispersed phase [Electronic resource] / N. V. Bulanov, B. M. Gasanov // Journal of Engineering Physics and Thermophysics. - 2006. - Vol. 79, № 6. - P1130-1133
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
BOILING
Аннотация: The results of investigation of heat transfer from thin wires to a boiling emulsion, the dispersed phase of which is formed from a liquid with a boiling temperature much lower than the boiling temperature of the dispersion medium, are presented. Two variants of boiling of such an emulsion are possible: boiling of the dispersed phase alone and simultaneous boiling of the dispersed phase and dispersion medium. In the present work, only the first variant has been studied; it is distinguished by the following most important features: high superheat of the dispersed-phase droplets ?Tsup of the emulsion and a wide temperature range of bubble boiling (50–200°C). For conventional heat carriers (pure liquids and solutions), the value of ?Tsup does not exceed 1–10°C, with the bubble-boiling interval lying within the range from 5 to 20°C.

\\\\Expert2\\NBO\\Journal of Engineering Physics and Thermophysics\\2006, v.79, N 6, P.1130.pdf
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