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Общее количество найденных документов : 46
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1.

Вид документа : Статья из журнала
Шифр издания : 53/V 70
Автор(ы) : Vinogradov V. E., Pavlov P. A.
Заглавие : Cavitation strength of liquids with large molecules
Место публикации : International Journal of Modern Physics B. - 2013. - №2. - С. 1-10
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): cavitation strength--homogeneous nucleation theory
Аннотация: The cavitation strength of liquids has been studied at atmospheric pressure by applying tensile stress pulses of duration up to 3 μs and amplitude up to 20 MPa within the temperature range from room temperature to the temperature of explosive boiling-up of the liquid. At high temperatures, where in absolute value the tensile strength does not exceed 1-2 times the critical pressure, agreement between classical nucleation theory and experiment is observed within the experimental error. With a decrease of the temperature the tensile strength of the liquid increases, but the experimental values of the breaking strength are lower than those predicted from theory. The dependence of the degree of discrepancy between theory and experiment on the number of atoms in the molecules of the liquids investigated is shown
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2.

Вид документа : Статья из журнала
Шифр издания : 53/V 70
Автор(ы) : Vinogradov V. E., Pavlov P. A.
Заглавие : Cavitation strength of liquids with large molecules
Место публикации : International Journal of Modern Physics B. - 2013. - №2. - С. 1-10
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): cavitation strength--homogeneous nucleation theory
Аннотация: The cavitation strength of liquids has been studied at atmospheric pressure by applying tensile stress pulses of duration up to 3 μs and amplitude up to 20 MPa within the temperature range from room temperature to the temperature of explosive boiling-up of the liquid. At high temperatures, where in absolute value the tensile strength does not exceed 1-2 times the critical pressure, agreement between classical nucleation theory and experiment is observed within the experimental error. With a decrease of the temperature the tensile strength of the liquid increases, but the experimental values of the breaking strength are lower than those predicted from theory. The dependence of the degree of discrepancy between theory and experiment on the number of atoms in the molecules of the liquids investigated is shown
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3.

Вид документа : Статья из журнала
Шифр издания : 53/S 94
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N., Andbaeva V. N.
Заглавие : Surface tension of an ethane–nitrogen solution. 1: Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2012. - Vol.328. - С. 13-20
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): surface tension--capillary constant--ethane–nitrogen solution
Аннотация: The differential variation of the method of capillary rise has been employed to measure the capillary constant and calculate the surface tension of ethane–nitrogen solutions. Experiments have been conducted in the temperature range from 93.15 K to 283.15 K at pressures up to 4 MPa. The (p, T)-projection of the line of three-phase liquid–liquid–vapor equilibrium and the surface tension at a liquid–vapor interface close to this line have been determined. Equations are developed which describe the dependence of the capillary constant and the surface tension on the temperature, pressure, and composition of the liquid phase. Experimental data on the surface tension are analyzed in the framework of thermodynamic m
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2012, v.328, p. 13-20.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 53/S 94
Автор(ы) : Baidakov V. G., Kaverin A. M., Khotienkova M. N., Andbaeva V. N.
Заглавие : Surface tension of an ethane–nitrogen solution. 1: Experiment and thermodynamic analysis of the results
Место публикации : Fluid Phase Equilibria. - 2012. - Vol.328. - С. 13-20
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): surface tension--capillary constant--ethane–nitrogen solution
Аннотация: The differential variation of the method of capillary rise has been employed to measure the capillary constant and calculate the surface tension of ethane–nitrogen solutions. Experiments have been conducted in the temperature range from 93.15 K to 283.15 K at pressures up to 4 MPa. The (p, T)-projection of the line of three-phase liquid–liquid–vapor equilibrium and the surface tension at a liquid–vapor interface close to this line have been determined. Equations are developed which describe the dependence of the capillary constant and the surface tension on the temperature, pressure, and composition of the liquid phase. Experimental data on the surface tension are analyzed in the framework of thermodynamic m
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2012, v.328, p. 13-20.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 53/P 34
Автор(ы) : Pavlov P. A., Vinogradov V. E.
Заглавие : Dynamics of vapor film formation upon rapid superheating of liquid
Место публикации : High Temperature. - 2010. - Vol.48, №5. - С. 683-690
Примечания : Bibliogr. : p. 690 (18 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): vapor film --superheating of liquid--dynamics
Аннотация: The formation of a vapor film on a heater in the modes of rapid near-wall superheating of liquid at positive and negative pressures is considered. A model of this phenomenon and a technique for calculating the vaporization front velocity are proposed. Tests of this model in experiments with n-heptane at pressures from −2 to +0.2 MPa and heating rates of ∼0.5 K/μs showed a significant effect of capillary forces on the dynamics of vapor film form
\\\\expert2\\NBO\\High Temperature\\2010, v. 48, N 5, p.683.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 53/P 34
Автор(ы) : Pavlov P. A., Vinogradov V. E.
Заглавие : Dynamics of vapor film formation upon rapid superheating of liquid
Место публикации : High Temperature. - 2010. - Vol.48, №5. - С. 683-690
Примечания : Bibliogr. : p. 690 (18 ref.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): vapor film --superheating of liquid--dynamics
Аннотация: The formation of a vapor film on a heater in the modes of rapid near-wall superheating of liquid at positive and negative pressures is considered. A model of this phenomenon and a technique for calculating the vaporization front velocity are proposed. Tests of this model in experiments with n-heptane at pressures from −2 to +0.2 MPa and heating rates of ∼0.5 K/μs showed a significant effect of capillary forces on the dynamics of vapor film form
\\\\expert2\\NBO\\High Temperature\\2010, v. 48, N 5, p.683.pdf
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7.

Вид документа :
Шифр издания : 53/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Bogatishcheva N. S.
Заглавие : Critical properties of some aliphatic symmetrical ethers [Электронный ресурс]
Место публикации : Journal of Chemical Thermodynamics. - 2014. - Vol.68. - С. 288-292
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84886263467&origin=resultslist&sort=plf-f&src=s&st1=Nikitin&st2=E.+D.
Примечания : Bibliogr. : p. 292 (30 ref.). - 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical properties --group-contribution method--ethers
Аннотация: The critical temperatures Tc and the critical pressures p c of dihexyl, dioctyl, and didecyl ethers have been measured. According to the measurements, the coordinates of the critical points are T c = (665 ± 7) K, pc = (1.44 ± 0.04) MPa for dihexyl ether, Tc = (723 ± 7) K, pc = (1.19 ± 0.04) MPa for dioctyl ether, and Tc = (768 ± 8) K, pc = (1.03 ± 0.03) MPa for didecyl ether. All the ethers studied degrade chemically at near-critical temperatures. A pulse-heating method applicable to measuring the critical properties of thermally unstable compounds has been used. The times from the beginning of a heating pulse to the moment of reaching the critical temperature were from 0.06 to 0.46 ms. The short residence times provide little decomposition of the substances in the course of the experiments. The critical properties of the ethers investigated in this work have been discussed together with those of methyl to butyl ethers. The experimental critical constants of the ethers have been compared with those estimated by the group-contribution methods of Wilson and Jasperson and Marrero and Gani. The Wilson/Jasperson method provides a better estimation of the critical temperatures and pressures of simple aliphatic ethers in comparison with the Marrero/Gani method if reliable normal boiling temperatures are used in the method of Wilson and Jasperson
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8.

Вид документа :
Шифр издания : 53/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Bogatishcheva N. S.
Заглавие : Critical properties of some aliphatic symmetrical ethers [Электронный ресурс]
Место публикации : Journal of Chemical Thermodynamics. - 2014. - Vol.68. - С. 288-292
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84886263467&origin=resultslist&sort=plf-f&src=s&st1=Nikitin&st2=E.+D.
Примечания : Bibliogr. : p. 292 (30 ref.). - 27.08.2014
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical properties --group-contribution method--ethers
Аннотация: The critical temperatures Tc and the critical pressures p c of dihexyl, dioctyl, and didecyl ethers have been measured. According to the measurements, the coordinates of the critical points are T c = (665 ± 7) K, pc = (1.44 ± 0.04) MPa for dihexyl ether, Tc = (723 ± 7) K, pc = (1.19 ± 0.04) MPa for dioctyl ether, and Tc = (768 ± 8) K, pc = (1.03 ± 0.03) MPa for didecyl ether. All the ethers studied degrade chemically at near-critical temperatures. A pulse-heating method applicable to measuring the critical properties of thermally unstable compounds has been used. The times from the beginning of a heating pulse to the moment of reaching the critical temperature were from 0.06 to 0.46 ms. The short residence times provide little decomposition of the substances in the course of the experiments. The critical properties of the ethers investigated in this work have been discussed together with those of methyl to butyl ethers. The experimental critical constants of the ethers have been compared with those estimated by the group-contribution methods of Wilson and Jasperson and Marrero and Gani. The Wilson/Jasperson method provides a better estimation of the critical temperatures and pressures of simple aliphatic ethers in comparison with the Marrero/Gani method if reliable normal boiling temperatures are used in the method of Wilson and Jasperson
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9.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M.Z.
Заглавие : Lines of Some Photoorganic Substance Melting at Pressures up to 230 MPA
Место публикации : Zhurnal Fizicheskoi Khimii. - 1985. - V.59, Is.1. - С. 245-246
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): photoorganic substance
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10.

Вид документа : Статья из журнала
Шифр издания : 53/F 17
Автор(ы) : Faizullin M.Z.
Заглавие : Lines of Some Photoorganic Substance Melting at Pressures up to 230 MPA
Место публикации : Zhurnal Fizicheskoi Khimii. - 1985. - V.59, Is.1. - С. 245-246
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): photoorganic substance
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