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 Найдено в других БД:Каталог книг и продолжающихся изданий (1)Труды Института высокотемпературной электрохимии УрО РАН (6)Труды сотрудников Института горного дела УрО РАН (1)Труды сотрудников Института органического синтеза УрО РАН (3)Расплавы (1)Публикации Чарушина В.Н. (2)
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Общее количество найденных документов : 34
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 1-10    11-20   21-30   31-34 
1.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M. Z., Vinogradov A. V., Koverda V. P.
Заглавие : Hydrate formation in layers of gas-saturated amorphous ice [Электронный ресурс]
Место публикации : Chemical Engineering Science. - 2015. - Vol. 130. - С. 135-143
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0009250915002043
Примечания : Bibliogr. : p. 142-143 (44 ref.). - 23.12.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): amorphous ice --gas hydrates --carbon dioxide
Аннотация: Layers of amorphous ice saturated with methane, ethane, propane and carbon dioxide were obtained by condensation of molecular beams of rarefied vapor and gas on a substrate cooled with liquid nitrogen. The amorphous state of such objects at low temperatures is stabilized by the high viscosity and the small value of the stationary nucleation rate of the crystal phase. Their heating in condition of high metastability is accompanied by spontaneous explosive crystallization, which leads to the formation of gas hydrates. Glass-transition and crystallization temperatures were determined by changes in their dielectric properties under heating. An increase in the gas content in layers of amorphous ice causes an increase in the crystallization temperature without any significant changes in the glass transition temperature. At atmospheric pressure in a liquid n-pentane medium the retention of gas hydrates was observed up to temperatures close to 273. K. Self-preservation ensured the retention of hydrates in a metastable state at temperatures exceeding considerably their equilibrium dissociation temperatures. Samples of gas hydrates obtained at a maximum gas flow rate during the deposition contained up to 15 mass % of methane, 12 mass % of ethane, 13 mass % of propane, and 23 mass % of carbon dioxide
\\\\expert2\\nbo\\Chemical Engineering Science\\2015, v.130, p.135-143.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M. Z., Vinogradov A. V., Koverda V. P.
Заглавие : Hydrate formation in layers of gas-saturated amorphous ice [Электронный ресурс]
Место публикации : Chemical Engineering Science. - 2015. - Vol. 130. - С. 135-143
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0009250915002043
Примечания : Bibliogr. : p. 142-143 (44 ref.). - 23.12.15
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): amorphous ice --gas hydrates --carbon dioxide
Аннотация: Layers of amorphous ice saturated with methane, ethane, propane and carbon dioxide were obtained by condensation of molecular beams of rarefied vapor and gas on a substrate cooled with liquid nitrogen. The amorphous state of such objects at low temperatures is stabilized by the high viscosity and the small value of the stationary nucleation rate of the crystal phase. Their heating in condition of high metastability is accompanied by spontaneous explosive crystallization, which leads to the formation of gas hydrates. Glass-transition and crystallization temperatures were determined by changes in their dielectric properties under heating. An increase in the gas content in layers of amorphous ice causes an increase in the crystallization temperature without any significant changes in the glass transition temperature. At atmospheric pressure in a liquid n-pentane medium the retention of gas hydrates was observed up to temperatures close to 273. K. Self-preservation ensured the retention of hydrates in a metastable state at temperatures exceeding considerably their equilibrium dissociation temperatures. Samples of gas hydrates obtained at a maximum gas flow rate during the deposition contained up to 15 mass % of methane, 12 mass % of ethane, 13 mass % of propane, and 23 mass % of carbon dioxide
\\\\expert2\\nbo\\Chemical Engineering Science\\2015, v.130, p.135-143.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Grishina K. A.
Заглавие : Capillary constant and surface tension of methane-helium solution
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.354. - С. 245-249
Примечания : Bibliogr. : p. 249 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--differential capillary method
Аннотация: The differential capillary method has been used to measure the capillary constant a2 of methane-helium solutions in the temperature range from 95 to 175K at pressures up to 4MPa. The surface tension γ and adsorption have been calculated from the obtained values of a2 employing, in addition, literature data on the density of the liquid and vapor phases of the respective solutions. Equations, which approximate the temperature, pressure and concentration dependences of a2 and γ, are proposed
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.354, p. 245-249.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N.
Заглавие : Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.356. - С. 90-95
Примечания : Bibliogr. : p. 95 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--surface tension
Аннотация: The paper presents the results of measuring the capillary constant a2 and calculating the surface tension σ of ethane-methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15K at pressures from that of saturated vapors of pure ethane to 4MPa. Equations that approximate the temperature, pressure and concentration dependences of a2 and σ are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.356, p. 90-95.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 53/G 15
Автор(ы) : Galashev A. E., Rakhmanova O. R.
Заглавие : Computer study of methane adsorption by water clusters
Место публикации : High Temperature. - 2013. - Vol.51, №3. - С. 369-376
Примечания : Bibliogr. : p. 375-376 (36 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): dielectric permittivities--frequency dependence--high-frequency mode
Аннотация: Methane adsorption by water clusters including 50 molecules was studied by the molecular dynamics (MD) technique. The calculated frequency dependence of the real and imaginary parts of the dielectric permittivity points to the prevalence of a high-frequency mode in the spectra of these parameters after methane is adsorbed by water clusters. Such changes are also observed in the spectrum of the IR radiation absorption coefficient; however, the average value of this coefficient remains nearly the same. Methane adsorption causes a considerable increase in the reflection coefficient of the disperse water medium and the integrated power of IR radiation emission
\\\\expert2\\NBO\\High Temperature\\2013, v. 51, N 3, p.369-376.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M. Z., Vinogradov A. V., Koverda V. P.
Заглавие : Formation of clathrate hydrates under crystallization of gas-saturated amorphous ice
Место публикации : International Journal of Heat and Mass Transfer. - 2013. - Vol.65. - С. 649-654
Примечания : Bibliogr. : p. 654 (42 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): clathrate hydrate--kinetics--methane
Аннотация: Layers of methane-saturated amorphous ice were obtained by deposition of molecular beams of water and gas on a substrate cooled with liquid nitrogen. Their heating is accompanied by glass transition (softening) and subsequent spontaneous crystallization. The avalanche-type initiation of crystallization centers captures the gas molecules and does not lead to their displacement by the motion of the crystallization front. Under crystallization of amorphous water-gas condensates in conditions of deep metastability the formation of gas hydrates takes place. Glass-transition and crystallization temperatures of the condensates were determined by changes in their dielectric properties under heating. The method of differential thermal analysis has been used to investigate the kinetics of crystallization of amorphous water layers. Properties that characterize the water crystallization kinetics have been determined on the basis of the obtained data on the dependence of the crystallization temperature on the heating rate
\\\\expert2\\NBO\\International Journal of Heat and Mass Transfer\\2013, v.65, p.649-654.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N.
Заглавие : Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.356. - С. 90-95
Примечания : Bibliogr. : p. 95 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--surface tension
Аннотация: The paper presents the results of measuring the capillary constant a2 and calculating the surface tension σ of ethane-methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15K at pressures from that of saturated vapors of pure ethane to 4MPa. Equations that approximate the temperature, pressure and concentration dependences of a2 and σ are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.356, p. 90-95.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Grishina K. A.
Заглавие : Capillary constant and surface tension of methane-helium solution
Место публикации : Fluid Phase Equilibria. - 2013. - Vol.354. - С. 245-249
Примечания : Bibliogr. : p. 249 (21 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): adsorption--capillary constant--differential capillary method
Аннотация: The differential capillary method has been used to measure the capillary constant a2 of methane-helium solutions in the temperature range from 95 to 175K at pressures up to 4MPa. The surface tension γ and adsorption have been calculated from the obtained values of a2 employing, in addition, literature data on the density of the liquid and vapor phases of the respective solutions. Equations, which approximate the temperature, pressure and concentration dependences of a2 and γ, are proposed
\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.354, p. 245-249.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M. Z., Vinogradov A. V., Koverda V. P.
Заглавие : Formation of clathrate hydrates under crystallization of gas-saturated amorphous ice
Место публикации : International Journal of Heat and Mass Transfer. - 2013. - Vol.65. - С. 649-654
Примечания : Bibliogr. : p. 654 (42 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): clathrate hydrate--kinetics--methane
Аннотация: Layers of methane-saturated amorphous ice were obtained by deposition of molecular beams of water and gas on a substrate cooled with liquid nitrogen. Their heating is accompanied by glass transition (softening) and subsequent spontaneous crystallization. The avalanche-type initiation of crystallization centers captures the gas molecules and does not lead to their displacement by the motion of the crystallization front. Under crystallization of amorphous water-gas condensates in conditions of deep metastability the formation of gas hydrates takes place. Glass-transition and crystallization temperatures of the condensates were determined by changes in their dielectric properties under heating. The method of differential thermal analysis has been used to investigate the kinetics of crystallization of amorphous water layers. Properties that characterize the water crystallization kinetics have been determined on the basis of the obtained data on the dependence of the crystallization temperature on the heating rate
\\\\expert2\\NBO\\International Journal of Heat and Mass Transfer\\2013, v.65, p.649-654.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 53/G 15
Автор(ы) : Galashev A. E., Rakhmanova O. R.
Заглавие : Computer study of methane adsorption by water clusters
Место публикации : High Temperature. - 2013. - Vol.51, №3. - С. 369-376
Примечания : Bibliogr. : p. 375-376 (36 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): dielectric permittivities--frequency dependence--high-frequency mode
Аннотация: Methane adsorption by water clusters including 50 molecules was studied by the molecular dynamics (MD) technique. The calculated frequency dependence of the real and imaginary parts of the dielectric permittivity points to the prevalence of a high-frequency mode in the spectra of these parameters after methane is adsorbed by water clusters. Such changes are also observed in the spectrum of the IR radiation absorption coefficient; however, the average value of this coefficient remains nearly the same. Methane adsorption causes a considerable increase in the reflection coefficient of the disperse water medium and the integrated power of IR radiation emission
\\\\expert2\\NBO\\High Temperature\\2013, v. 51, N 3, p.369-376.pdf
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