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Труды Института высокотемпературной электрохимии УрО РАН
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Труды сотрудников Института теплофизики УрО РАН
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1.
Инвентарный номер: нет.
   
   Г 15

    Галашев, А. Е.
    Изучение взаимодействия разноименнозаряженных кластеров водных электролитов методом молекулярной динамики [] = Moleculal dynamics study of interaction between opposiely charged clusters of aqueous electrolytes / А. Е. Галашев, А. Сервида, Ф. Сигон // Электрохимия. - 1997. - Т. 33, N 2. - С. 189-195
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
электролиты водные -- ВОДНЫЙ ЭЛЕКТРОЛИТ -- КЛАСТЕРЫ РАЗНОИМЕННОЗАРЯЖЕННЫЕ -- МЕТОД МОЛЕКУЛЯРНОЙ ДИНАМИКИ -- НУКЛЕАЦИЯ ГЕТЕРОМОЛЕКУЛЯРНАЯ -- ГЕТЕРОМОЛЕКУЛЯРНАЯ НУКЛЕАЦИЯ -- ПАР ВОДЯНОЙ -- ВОДЯНОЙ ПАР -- ЭНЕРГИЯ КЛАСТЕРОВ -- КЛАСТЕРОВ ЭНЕРГИЯ -- ИОНЫ КЛАСТЕРОВ -- КЛАСТЕРОВ ИОНЫ
Аннотация: Взаимодействие кластеров Na+(H2O)n и Cl-(H2O)n рассматривается как процесс, оказывающий влияние на гетеромолекулярную нуклеацию в водяном паре. В молекулярно-динамической модели прослеживается эволюция системы двух электрически противоположно заряженных кластеров. Исследуется динамика, полная энергия, многочастичные эффекты и структура трех пар взаимодействующих кластеров. Обсуждается возможность стабилизации пары ионов, несущих заряды противоположного знака, в водяном паре

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2.
Инвентарный номер: нет.
   
   Г 15

    Галашев, А. Е.
    Изучение взаимодействия разноименнозаряженных кластеров водных электролитов методом молекулярной динамики [] = Moleculal dynamics study of interaction between opposiely charged clusters of aqueous electrolytes / А. Е. Галашев, А. Сервида, Ф. Сигон // Электрохимия. - 1997. - Т. 33, N 2. - С. 189-195
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
электролиты водные -- ВОДНЫЙ ЭЛЕКТРОЛИТ -- КЛАСТЕРЫ РАЗНОИМЕННОЗАРЯЖЕННЫЕ -- МЕТОД МОЛЕКУЛЯРНОЙ ДИНАМИКИ -- НУКЛЕАЦИЯ ГЕТЕРОМОЛЕКУЛЯРНАЯ -- ГЕТЕРОМОЛЕКУЛЯРНАЯ НУКЛЕАЦИЯ -- ПАР ВОДЯНОЙ -- ВОДЯНОЙ ПАР -- ЭНЕРГИЯ КЛАСТЕРОВ -- КЛАСТЕРОВ ЭНЕРГИЯ -- ИОНЫ КЛАСТЕРОВ -- КЛАСТЕРОВ ИОНЫ
Аннотация: Взаимодействие кластеров Na+(H2O)n и Cl-(H2O)n рассматривается как процесс, оказывающий влияние на гетеромолекулярную нуклеацию в водяном паре. В молекулярно-динамической модели прослеживается эволюция системы двух электрически противоположно заряженных кластеров. Исследуется динамика, полная энергия, многочастичные эффекты и структура трех пар взаимодействующих кластеров. Обсуждается возможность стабилизации пары ионов, несущих заряды противоположного знака, в водяном паре

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3.
Инвентарный номер: нет.
   
   S 89

    Vshivkov, S. A.
    Effect of molecular dimensions of components on phase transitions in solutions of oligomeric polyethers / S. A. Vshivkov, M. Z. Faizullin // Polymer Science. Series A. - 2009. - Vol.51, №9. - С. 974-978
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
POLYMER-SOLVENT INTERACTION -- POLYSTYRENE -- REGION
Аннотация: The molecular masses and intrinsic viscosities of a series of oligomeric poly(propylene glycols) have been studied by light scattering, analysis of chain ends, viscometry, and the cloud-point method. Phase diagrams are plotted and the Flory-Huggins thermodynamic interaction parameters and the second virial coefficients are calculated for oligomeric poly(propylene glycol)-n-alkane systems. The effects of the molecular dimensions of components on their mutual solubility and positions of boundary curves are determined. UCST decreases with an increase in the size of poly(propylene glycol) macromolecules and increases with an increase in the size of n-alkane mol

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4.
Инвентарный номер: нет.
   
   S 89

    Vshivkov, S. A.
    Effect of molecular dimensions of components on phase transitions in solutions of oligomeric polyethers / S. A. Vshivkov, M. Z. Faizullin // Polymer Science. Series A. - 2009. - Vol.51, №9. - С. 974-978
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
POLYMER-SOLVENT INTERACTION -- POLYSTYRENE -- REGION
Аннотация: The molecular masses and intrinsic viscosities of a series of oligomeric poly(propylene glycols) have been studied by light scattering, analysis of chain ends, viscometry, and the cloud-point method. Phase diagrams are plotted and the Flory-Huggins thermodynamic interaction parameters and the second virial coefficients are calculated for oligomeric poly(propylene glycol)-n-alkane systems. The effects of the molecular dimensions of components on their mutual solubility and positions of boundary curves are determined. UCST decreases with an increase in the size of poly(propylene glycol) macromolecules and increases with an increase in the size of n-alkane mol

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5.
Инвентарный номер: нет.
   
   S 78

   
    Spectral characteristics of water clusters upon interaction with oxygen molecules and chlorine ions / A. E. Galashev, O. R. Rakhmanova, O. A. Novruzova, A. A. Galasheva // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2009. - Vol. 71, № 6. - С. 745-753
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR DYNAMICS METHOD -- DIELECTRIC PERMITTIVITY -- EMITTED RADIATION

\\\\Expert2\\NBO\\Colloid Journal\\2009, V.71, N 6, 745.pdf
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6.
Инвентарный номер: нет.
   
   S 78

   
    Spectral characteristics of water clusters upon interaction with oxygen molecules and chlorine ions / A. E. Galashev, O. R. Rakhmanova, O. A. Novruzova, A. A. Galasheva // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2009. - Vol. 71, № 6. - С. 745-753
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR DYNAMICS METHOD -- DIELECTRIC PERMITTIVITY -- EMITTED RADIATION

\\\\Expert2\\NBO\\Colloid Journal\\2009, V.71, N 6, 745.pdf
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7.
Инвентарный номер: нет.
   
   S 66

    Skokov, V. N.
    Stochastic resonance in a nonlinear system with a 1/f spectrum [Electronic resource] / V. N. Skokov, V. P. Koverda // Technical Physics. - 2014. - Vol.59, №5. - С. 637-641. - Bibliogr. : p. 641 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- NONEQUILIBRIUM PHASE -- 1/F SPECTRUM
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external harmonic force is analyzed using numerical methods. It is shown that the stochastic resonance occurring in the system enhances the output periodic signal under the action of noise. A random process with a 1/f power spectrum corresponds to the Gibbs-Shannon information entropy peak. In stochastic resonance, the information entropy is minimal

\\\\expert2\\NBO\\Technical Physics\\2014, v.59, N 5, p.637-641.pdf
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8.
Инвентарный номер: нет.
   
   S 66

    Skokov, V. N.
    Stochastic resonance in a nonlinear system with a 1/f spectrum [Electronic resource] / V. N. Skokov, V. P. Koverda // Technical Physics. - 2014. - Vol.59, №5. - С. 637-641. - Bibliogr. : p. 641 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- NONEQUILIBRIUM PHASE -- 1/F SPECTRUM
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external harmonic force is analyzed using numerical methods. It is shown that the stochastic resonance occurring in the system enhances the output periodic signal under the action of noise. A random process with a 1/f power spectrum corresponds to the Gibbs-Shannon information entropy peak. In stochastic resonance, the information entropy is minimal

\\\\expert2\\NBO\\Technical Physics\\2014, v.59, N 5, p.637-641.pdf
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9.
Инвентарный номер: нет.
   
   S 66

    Skokov, V. N.
    Stochastic resonance in a nonlinear system with a 1/f spectrum [Electronic resource] / V. N. Skokov, V. P. Koverda // Technical Physics. - 2013. - Vol.59, №5. - С. 637-641. - Bibliogr. : p. 641 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- 1/f FLUCTUATIONS
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external harmonic force is analyzed using numerical methods. It is shown that the stochastic resonance occurring in the system enhances the output periodic signal under the action of noise. A random process with a 1/f power spectrum corresponds to the Gibbs-Shannon information entropy peak. In stochastic resonance, the information entropy is minimal

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10.
Инвентарный номер: нет.
   
   S 66

    Skokov, V. N.
    Stochastic resonance in a nonlinear system with a 1/f spectrum [Electronic resource] / V. N. Skokov, V. P. Koverda // Technical Physics. - 2013. - Vol.59, №5. - С. 637-641. - Bibliogr. : p. 641 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- 1/f FLUCTUATIONS
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external harmonic force is analyzed using numerical methods. It is shown that the stochastic resonance occurring in the system enhances the output periodic signal under the action of noise. A random process with a 1/f power spectrum corresponds to the Gibbs-Shannon information entropy peak. In stochastic resonance, the information entropy is minimal

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11.
Инвентарный номер: нет.
   
   S 45

   
    Self-organized criticality and 1/f-noise at interacting nonequilibrium phase transitions / V. N. Skokov, A. V. Reshetnikov, V. P. Koverda, V. P. Koverda, A. V. Vinogradov // Physica A. - 2001. - Vol.293, № 1-2. - С. 1-12
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SELF-ORGANIZED CRITICALITY -- 1/f FLUCTUATIONS -- POWER SPECTRA
Аннотация: Oscillatory combustion regimes were experimentally investigated under the conditions of ignitable liquid boiling-up before the reaction front. Fluctuations with a power spectral density inversely proportional to frequency (1/f-noise) were observed and the power-law character of distribution functions was found. The phenomena are connected with the intersection and interaction of nonequilibrium phase transitions. A mathematical model describing the initiation of 1/f fluctuations at the interaction of a subcritical phase transition and supercritical one in a space-distributed system was suggested

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12.
Инвентарный номер: нет.
   
   S 45

   
    Self-organized criticality and 1/f-noise at interacting nonequilibrium phase transitions / V. N. Skokov, A. V. Reshetnikov, V. P. Koverda, V. P. Koverda, A. V. Vinogradov // Physica A. - 2001. - Vol.293, № 1-2. - С. 1-12
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SELF-ORGANIZED CRITICALITY -- 1/f FLUCTUATIONS -- POWER SPECTRA
Аннотация: Oscillatory combustion regimes were experimentally investigated under the conditions of ignitable liquid boiling-up before the reaction front. Fluctuations with a power spectral density inversely proportional to frequency (1/f-noise) were observed and the power-law character of distribution functions was found. The phenomena are connected with the intersection and interaction of nonequilibrium phase transitions. A mathematical model describing the initiation of 1/f fluctuations at the interaction of a subcritical phase transition and supercritical one in a space-distributed system was suggested

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13.
Инвентарный номер: нет.
   
   P 93

    Protsenko, S. P.
    Melting line, spinodal and the endpoint of the melting line in the system with a modified Lennard-Jones potential [Electronic resource] / S. P. Protsenko, V. G. Baidakov, A. O. Tipeev // Thermophysics and Aeromtchanics. - 2013. - Vol.20, №1. - P93-104. - Bibliogr. : p. 104 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
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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14.
Инвентарный номер: нет.
   
   P 93

    Protsenko, S. P.
    Melting line, spinodal and the endpoint of the melting line in the system with a modified Lennard-Jones potential [Electronic resource] / S. P. Protsenko, V. G. Baidakov, A. O. Tipeev // Thermophysics and Aeromtchanics. - 2013. - Vol.20, №1. - P93-104. - Bibliogr. : p. 104 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
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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15.
Инвентарный номер: нет.
   
   L 95

   
    Low-frequency fluctuations with 1/f α power spectrum in transient modes of water boiling on a wire heater [Electronic resource] / V. N. Skokov, V. P. Koverda, A. V. Vinogradov, A. V. Reshetnikov // High Temperature. - 2010. - Vol.48, №5. - P706-712
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRITICAL EXPONENT -- DYNAMIC SCALING -- POWER LAW
Аннотация: The investigation of transient modes of water boiling on a wire heater reveals the presence of random vibrations with the frequency dependence of power spectra of S ∼ f -α, where the exponent α has values in the range 0.8 ≤ α < 2. Large-scale low-frequency fluctuations exhibiting the property of scale invariance, the duration of which is distributed by the power law P ∼ τ-β, are present in experimental realizations of random processes describing thermal fluctuations. The properties of such fluctuation processes are described using two nonlinear stochastic differential equations which describe the interaction between different phase transitions. Relations of dynamic scaling are determined between the critical exponents which define the frequency dependence of the power spectra of fluctuations α and of the distribution function of the amplitudes of extreme low-frequency fluctuations β. It is demonstrated that the critical exponents are related by the relation α + β = 2 both in the experiments and in the theoretical model of interacting phase transitions. The power spectra of fluctuations are determined in the experiments with greater simplicity and accuracy than the distribution function of extreme amplitudes. In the cases where only the spectral dependence of power spectra of fluctuations is known, the correlations between the exponents enable one to obtain information about the distribution of large-scale surges and estimate dangerous amplitudes

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16.
Инвентарный номер: нет.
   
   L 95

   
    Low-frequency fluctuations with 1/f α power spectrum in transient modes of water boiling on a wire heater [Electronic resource] / V. N. Skokov, V. P. Koverda, A. V. Vinogradov, A. V. Reshetnikov // High Temperature. - 2010. - Vol.48, №5. - P706-712
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRITICAL EXPONENT -- DYNAMIC SCALING -- POWER LAW
Аннотация: The investigation of transient modes of water boiling on a wire heater reveals the presence of random vibrations with the frequency dependence of power spectra of S ∼ f -α, where the exponent α has values in the range 0.8 ≤ α < 2. Large-scale low-frequency fluctuations exhibiting the property of scale invariance, the duration of which is distributed by the power law P ∼ τ-β, are present in experimental realizations of random processes describing thermal fluctuations. The properties of such fluctuation processes are described using two nonlinear stochastic differential equations which describe the interaction between different phase transitions. Relations of dynamic scaling are determined between the critical exponents which define the frequency dependence of the power spectra of fluctuations α and of the distribution function of the amplitudes of extreme low-frequency fluctuations β. It is demonstrated that the critical exponents are related by the relation α + β = 2 both in the experiments and in the theoretical model of interacting phase transitions. The power spectra of fluctuations are determined in the experiments with greater simplicity and accuracy than the distribution function of extreme amplitudes. In the cases where only the spectral dependence of power spectra of fluctuations is known, the correlations between the exponents enable one to obtain information about the distribution of large-scale surges and estimate dangerous amplitudes

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17.
Инвентарный номер: нет.
   
   L 95

   
    Low frequency fluctuations of laser beam intensity run through the system of cavitation water clusters [Electronic resource] / V. N. Skokov, V. P. Koverda, A. V. Vinogradov, A. V. Reshetnikov // Thermophysics and Aeromtchanics. - 2010. - Vol.17, №1. - P99-106. - Bibliogr. : p. 106 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ACOUSTIC CAVITATION -- LOW-FREQUENCY PULSATIONS -- POWER SPECTRUM
Аннотация: Experiments on water cavitation in ultrasonic field have been carried out. Low frequency fluctuations of the intensity of laser beam run through the cavitation area have been studied. Experiments have proved presence of low-frequency random fluctuations with frequency dependence of power spectra S ~ 1/ f , α where the exponent α ranged within 0.8 ≤ α ≤ 1.2. From experimental realizations, large-scale low frequency pulsations characterized by scale invariance, which duration is distributed according to the power law, have been distinguished. The results are explained on the basis of mathematical model for the rise of scale invariant fluctuations with 1/ f α power spectrum in the system of two nonlinear stochastic differential equations describing interaction of heterogeneous phase transitions. Distribution of extreme low frequency emissions obtained from numerical solutions to stochastic equations takes the power series form. Correlations of dynamic scaling between critical indicators determining frequency dependence of pulsations power spectra α and distribution functions of extreme low frequency pulsation amplitudes β have been determined. It is shown that both in the experiments on acoustic cavitation of water and in the theoretical model of interacting phase transitions critical indicators are bound with the correlation α + β = 2. Spectra of fluctuation power are determined in the experiments simpler and more accurately than the function of extreme amplitudes distribution. In case when only one frequency dependence of fluctuation capacity spectra is known correlations between indicators serve to obtain information on the distribution of large scale emissions and to estimate critical amplitudes.

\\\\expert2\\NBO\\Thermophysics and Aeromechanics\\2010, V. 17, N 1. P. 99-106.pdf
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18.
Инвентарный номер: нет.
   
   L 95

   
    Low frequency fluctuations of laser beam intensity run through the system of cavitation water clusters [Electronic resource] / V. N. Skokov, V. P. Koverda, A. V. Vinogradov, A. V. Reshetnikov // Thermophysics and Aeromtchanics. - 2010. - Vol.17, №1. - P99-106. - Bibliogr. : p. 106 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ACOUSTIC CAVITATION -- LOW-FREQUENCY PULSATIONS -- POWER SPECTRUM
Аннотация: Experiments on water cavitation in ultrasonic field have been carried out. Low frequency fluctuations of the intensity of laser beam run through the cavitation area have been studied. Experiments have proved presence of low-frequency random fluctuations with frequency dependence of power spectra S ~ 1/ f , α where the exponent α ranged within 0.8 ≤ α ≤ 1.2. From experimental realizations, large-scale low frequency pulsations characterized by scale invariance, which duration is distributed according to the power law, have been distinguished. The results are explained on the basis of mathematical model for the rise of scale invariant fluctuations with 1/ f α power spectrum in the system of two nonlinear stochastic differential equations describing interaction of heterogeneous phase transitions. Distribution of extreme low frequency emissions obtained from numerical solutions to stochastic equations takes the power series form. Correlations of dynamic scaling between critical indicators determining frequency dependence of pulsations power spectra α and distribution functions of extreme low frequency pulsation amplitudes β have been determined. It is shown that both in the experiments on acoustic cavitation of water and in the theoretical model of interacting phase transitions critical indicators are bound with the correlation α + β = 2. Spectra of fluctuation power are determined in the experiments simpler and more accurately than the function of extreme amplitudes distribution. In case when only one frequency dependence of fluctuation capacity spectra is known correlations between indicators serve to obtain information on the distribution of large scale emissions and to estimate critical amplitudes.

\\\\expert2\\NBO\\Thermophysics and Aeromechanics\\2010, V. 17, N 1. P. 99-106.pdf
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19.
Инвентарный номер: нет.
   
   K 79

    Koverda, V. P.
    Stochastic resonance and 1/f noise at coupled phase transitions [Electronic resource] / V. P. Koverda, V. N. Skokov // Physica A. - 2014. - Vol.391. - С. 173-181. - Bibliogr. : p. 181 (24 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- STOCHASTIC RESONANCE
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external periodic action has been studied by numerical methods. It is shown that in the system there appears stochastic resonance, which leads to an amplification of the output periodic signal under the action of noise. To a random process with a 1/f power spectrum corresponds the maximum Gibbs-Shannon informational entropy. At stochastic resonance the informational entropy is minimum. A new behavior of a two-dimensional system at stochastic resonance has been revealed: at low frequencies of a periodic action with an increased white noise intensity the system trajectories are limited by two mutually perpendicular directions - anisotropic stochastic resonance. With a further increase in the white noise intensity in the system one can observe "ordinary" stochastic resonance, when the increasing intensity of fluctuations in the vicinity of the driving frequency is smeared in the directions

\\\\expert2\\nbo\\Physica A\\2014, v. 393, p.173-181.pdf
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20.
Инвентарный номер: нет.
   
   K 79

    Koverda, V. P.
    Stochastic resonance and 1/f noise at coupled phase transitions [Electronic resource] / V. P. Koverda, V. N. Skokov // Physica A. - 2014. - Vol.391. - С. 173-181. - Bibliogr. : p. 181 (24 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
STOCHASTIC EQUATIONS -- STOCHASTIC RESONANCE
Аннотация: The system of two nonlinear stochastic equations simulating 1/f fluctuations during the interaction of nonequilibrium phase transitions in the presence of an external periodic action has been studied by numerical methods. It is shown that in the system there appears stochastic resonance, which leads to an amplification of the output periodic signal under the action of noise. To a random process with a 1/f power spectrum corresponds the maximum Gibbs-Shannon informational entropy. At stochastic resonance the informational entropy is minimum. A new behavior of a two-dimensional system at stochastic resonance has been revealed: at low frequencies of a periodic action with an increased white noise intensity the system trajectories are limited by two mutually perpendicular directions - anisotropic stochastic resonance. With a further increase in the white noise intensity in the system one can observe "ordinary" stochastic resonance, when the increasing intensity of fluctuations in the vicinity of the driving frequency is smeared in the directions

\\\\expert2\\nbo\\Physica A\\2014, v. 393, p.173-181.pdf
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