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Общее количество найденных документов : 46
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1.

Вид документа : Статья из журнала
Шифр издания : 53/A 71
Автор(ы) : Reshetnikov A. V., Sannikov V. N., Skokov V. N., Koverda V. P.
Заглавие : Arc current fluctuation power spectra in the system of a solid metal electrode and carbonate melt
Место публикации : Journal of Applied Mechanics and Technical Physics. - 2007. - Vol. 48, № 1. - С. 7-10
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): solid metals
Аннотация: Arc current fluctuations between a solid metal electrode and a liquid melt of alkaline carbonates at atmospheric pressure are measured. Arc current fluctuation power spectra are determined from the measurement data. It is shown that the fluctuation power is inversely proportional to the frequency (1/f-fluctuations). The fluctuations have a normal Gaussian distribution. The observed 1/f fluctuations exhibit scale invariance.
\\\\Expert2\\NBO\\Journal of Applied Mechanics and Technical Physics\\2007, v. 48, N. 1, p.7.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 53/A 71
Автор(ы) : Reshetnikov A. V., Sannikov V. N., Skokov V. N., Koverda V. P.
Заглавие : Arc current fluctuation power spectra in the system of a solid metal electrode and carbonate melt
Место публикации : Journal of Applied Mechanics and Technical Physics. - 2007. - Vol. 48, № 1. - С. 7-10
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): solid metals
Аннотация: Arc current fluctuations between a solid metal electrode and a liquid melt of alkaline carbonates at atmospheric pressure are measured. Arc current fluctuation power spectra are determined from the measurement data. It is shown that the fluctuation power is inversely proportional to the frequency (1/f-fluctuations). The fluctuations have a normal Gaussian distribution. The observed 1/f fluctuations exhibit scale invariance.
\\\\Expert2\\NBO\\Journal of Applied Mechanics and Technical Physics\\2007, v. 48, N. 1, p.7.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V.G., Kaverin A.M., Skripov V.P.
Заглавие : Kinetics of overheated propane and butane fluctuation boiling up
Место публикации : Zhurnal Fizicheskoi Khimii. - 1986. - V.60, Is.2. - С. 444-448
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): kinetics of overheated--propane--butane--fluctuation boiling up
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4.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V.G., Kaverin A.M., Skripov V.P.
Заглавие : Kinetics of overheated propane and butane fluctuation boiling up
Место публикации : Zhurnal Fizicheskoi Khimii. - 1986. - V.60, Is.2. - С. 444-448
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): kinetics of overheated--propane--butane--fluctuation boiling up
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5.

Вид документа : Статья из журнала
Шифр издания : 53/D 82
Автор(ы) : Skripov V. P., Vinogradov V. N., Skokov A. V., Reshetnikov V. P., Koverda V. P.
Заглавие : Drop on a Hot Plate: The Appearance of 1/f Noise at the Transition to the Ball-Shaped State
Место публикации : Technical Physics. - 2003. - V. 48, N 6. - С. 682-684. - ISSN 1063-7842. - ISSN 1063-7842
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): physics--drops--1/f-noise--ball-shaped state--evaporation of pentane--pentane--evaporation of hexane--hexane--evaporation of water--water--h2o
Аннотация: The evaporation of pentane, hexane, and water drops from a horizontal heating surface is studied experimentally. The temperature at which the drops take a completely spherical shape correlates with limit superheat temperatures under quasi-static conditions, suggesting dynamic burnout. Fluctuations in transient regimes are measured by optical and resistive methods. It is found that the spectral densities of the fluctuation intensity are of a flicker nature. Such behavior is associated with percolation in a set of nonequilibrium phase transitions
\\\\Expert2\\NBO\\Technical Physics\\2003, v.48, N 10, p.682.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 53/D 82
Автор(ы) : Skripov V. P., Vinogradov V. N., Skokov A. V., Reshetnikov V. P., Koverda V. P.
Заглавие : Drop on a Hot Plate: The Appearance of 1/f Noise at the Transition to the Ball-Shaped State
Место публикации : Technical Physics. - 2003. - V. 48, N 6. - С. 682-684. - ISSN 1063-7842. - ISSN 1063-7842
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): physics--drops--1/f-noise--ball-shaped state--evaporation of pentane--pentane--evaporation of hexane--hexane--evaporation of water--water--h2o
Аннотация: The evaporation of pentane, hexane, and water drops from a horizontal heating surface is studied experimentally. The temperature at which the drops take a completely spherical shape correlates with limit superheat temperatures under quasi-static conditions, suggesting dynamic burnout. Fluctuations in transient regimes are measured by optical and resistive methods. It is found that the spectral densities of the fluctuation intensity are of a flicker nature. Such behavior is associated with percolation in a set of nonequilibrium phase transitions
\\\\Expert2\\NBO\\Technical Physics\\2003, v.48, N 10, p.682.pdf
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7.

Вид документа :
Шифр издания : 53/D 98
Автор(ы) : Pavlenko A. N., Koverda V. P., Skokov A. V., Reshetnikov A. V., Vinogradov A. V., Surtaev A. S.
Заглавие : Dynamics of transition processes and structure formation in critical heat-mass transfer regimes during liquid boiling and cavitation
Место публикации : Journal of Engineering Thermophysics. - 2009. - Vol.18, №1. - С. 20-38
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical phenomena --falling films --liquid cavitation
Аннотация: The results of experimental studies concerning the development of critical phenomena and structure formation in the process of boiling in falling films and during liquid cavitation are given. In conditions of stepwise and periodic pulsed surges of a thermal load, the parameters of formed metastable regular structures and critical parameters of heat-releasing surface drying are shown to be determined by the dynamics of moving wetting boundaries in the process of system self-organization. In the case of high-intensity heat fluxes, decomposition of a falling film is determined by propagation regimes of self-maintaining boiling fronts with a complex shape of intermediate structures. The study of ultrasonic cavitation of water, glycerin, and vacuum oil shows that structures of interacting gas-vapor bubbles (having the form of fractal clusters) are formed near the emitter surface. Spatial structures are characterized by a low-frequency divergence of the power spectra and a scale-invariant function of the fluctuation distributions. The experimental results are in good qualitative agreement with the numerical simulations performed within the theory of 1/f fluctuations in the case of nonequilibrium phase transitions in a spatially distributed system
\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2009, V.18, N 1. P. 20-38.pdf
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8.

Вид документа :
Шифр издания : 53/D 98
Автор(ы) : Pavlenko A. N., Koverda V. P., Skokov A. V., Reshetnikov A. V., Vinogradov A. V., Surtaev A. S.
Заглавие : Dynamics of transition processes and structure formation in critical heat-mass transfer regimes during liquid boiling and cavitation
Место публикации : Journal of Engineering Thermophysics. - 2009. - Vol.18, №1. - С. 20-38
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): critical phenomena --falling films --liquid cavitation
Аннотация: The results of experimental studies concerning the development of critical phenomena and structure formation in the process of boiling in falling films and during liquid cavitation are given. In conditions of stepwise and periodic pulsed surges of a thermal load, the parameters of formed metastable regular structures and critical parameters of heat-releasing surface drying are shown to be determined by the dynamics of moving wetting boundaries in the process of system self-organization. In the case of high-intensity heat fluxes, decomposition of a falling film is determined by propagation regimes of self-maintaining boiling fronts with a complex shape of intermediate structures. The study of ultrasonic cavitation of water, glycerin, and vacuum oil shows that structures of interacting gas-vapor bubbles (having the form of fractal clusters) are formed near the emitter surface. Spatial structures are characterized by a low-frequency divergence of the power spectra and a scale-invariant function of the fluctuation distributions. The experimental results are in good qualitative agreement with the numerical simulations performed within the theory of 1/f fluctuations in the case of nonequilibrium phase transitions in a spatially distributed system
\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2009, V.18, N 1. P. 20-38.pdf
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9.

Вид документа :
Шифр издания : 53/E 70
Автор(ы) : Ermakov G. V., Gurashkin A. L
Заглавие : Description of heterogeneous boiling up of superheated liquid
Место публикации : Journal of Engineering Thermophysics. - 2007. - Vol.16, №4. - С. 231-235
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): boiling--superheated n-hexane --heterogeneous boiling
Аннотация: The results of measurements of the average expectation time of boiling up of strongly superheated n-hexane in structures from different finely dispersed powders whose smallest size is about 10 nm by using isotherms and isobars are presented. As was proposed by Academician V.P. Skripov, isotherm sections with the heterogeneous boiling up mechanism were processed with the help of Zhurkov’s formula, which is based on the thermofluctuation hypothesis of solid body strength. Thus, temperature dependences of the characteristic volume, whose excess leads to the system division into macroscopic phases, have been found for the systems studied. An approach dealing with the boiling up of superheated liquid as a fluctuation in a locally isolated microvolume is used to describe the isobars. To calculate the work of formation of the characteristic volume, its values obtained at the processing of isotherms are used. The system of equations for the temperature dependence of the average expectation time of n-hexane boiling up in isobars has three empirical constants. A rather accurate description of isobars is obtained at a proper choice of these constants. The result obtained confirms that the idea of Academician V.P. Skripov is successful
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10.

Вид документа :
Шифр издания : 53/E 70
Автор(ы) : Ermakov G. V., Gurashkin A. L
Заглавие : Description of heterogeneous boiling up of superheated liquid
Место публикации : Journal of Engineering Thermophysics. - 2007. - Vol.16, №4. - С. 231-235
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): boiling--superheated n-hexane --heterogeneous boiling
Аннотация: The results of measurements of the average expectation time of boiling up of strongly superheated n-hexane in structures from different finely dispersed powders whose smallest size is about 10 nm by using isotherms and isobars are presented. As was proposed by Academician V.P. Skripov, isotherm sections with the heterogeneous boiling up mechanism were processed with the help of Zhurkov’s formula, which is based on the thermofluctuation hypothesis of solid body strength. Thus, temperature dependences of the characteristic volume, whose excess leads to the system division into macroscopic phases, have been found for the systems studied. An approach dealing with the boiling up of superheated liquid as a fluctuation in a locally isolated microvolume is used to describe the isobars. To calculate the work of formation of the characteristic volume, its values obtained at the processing of isotherms are used. The system of equations for the temperature dependence of the average expectation time of n-hexane boiling up in isobars has three empirical constants. A rather accurate description of isobars is obtained at a proper choice of these constants. The result obtained confirms that the idea of Academician V.P. Skripov is successful
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