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Общее количество найденных документов : 66
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1.
Инвентарный номер: нет.
   
   K 79


    Koverda, V. P.
    Noise-induced synchronization in a spatially distributed system with a 1/f spectrum [Electronic resource] / V. P. Koverda, V. N. Skokov // Doklady Physics. - 2015. - Vol. 60, № 5. - С. 193-196. - Bibliogr. : p. 196 (15 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
NOISE-INDUCED SYNCHRONIZATION -- SPATIAL INTERACTION -- NONEQUILIBRIUM PHASE TRANSITIONS
Аннотация: Noise-induced synchronization, which resembles the critical phase transition upon attaining a rather large intensity of white noise, is manifested in a spatially distributed system with the 1/f spectrum of power, which describes nonequilibrium phase transitions. In this case, the spatial interaction in the system is important.

\\\\expert2\\nbo\\Doklady Physics\\2015, v.60, N 5, p.193-196.pdf
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2.
Инвентарный номер: нет.
   
   K 79


    Koverda, V. P.
    Noise-induced synchronization in a spatially distributed system with a 1/f spectrum [Electronic resource] / V. P. Koverda, V. N. Skokov // Doklady Physics. - 2015. - Vol. 60, № 5. - С. 193-196. - Bibliogr. : p. 196 (15 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
NOISE-INDUCED SYNCHRONIZATION -- SPATIAL INTERACTION -- NONEQUILIBRIUM PHASE TRANSITIONS
Аннотация: Noise-induced synchronization, which resembles the critical phase transition upon attaining a rather large intensity of white noise, is manifested in a spatially distributed system with the 1/f spectrum of power, which describes nonequilibrium phase transitions. In this case, the spatial interaction in the system is important.

\\\\expert2\\nbo\\Doklady Physics\\2015, v.60, N 5, p.193-196.pdf
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3.
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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4.
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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5.
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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6.
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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7.
Инвентарный номер: нет.
   
   K 79


    Koverda, V. P.
    Stability of low-frequency pulsations in a transient heat transfer regime upon phase transitions [Electronic resource] / V. P. Koverda, V. N. Skokov, A. V. Vinogradov // High Temperature. - 2013. - Vol.51, №3. - P421-425. - Bibliogr. : p. 425 (20 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
HARMONIC FORCE -- LOW-FREQUENCY PULSATIONS -- HEAT-MASS TRANSFER
Аннотация: Using the principle of maximum entropy, we investigate the stability of stochastic processes with the 1/f power spectrum in the system of two nonlinear stochastic differential equations when modeling pulsations in crisis and transient heat-mass transfer regimes with intensive phase transitions. An analysis of the stability of the resultant process, which appears upon the interaction of the stochastic process and the 1/f spectrum of external deterministic impact, is performed. Under the action of harmonic force, stable resultant processes are divided into two types depending on the amplitude of the harmonic force. We have experimentally studied the influence of harmonic impact on the stability of pulsations with the 1/f spectrum upon the crisis of water boiling on a heated wire. The results are in qualitative agreement with theoretical estimations

\\\\expert2\\NBO\\High Temperature\\2013, v. 51, N 3, p.421-425.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. - 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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9.
Инвентарный номер: нет.
   
   K 79


    Koverda, V. P.
    Stability of a random process with a 1/f spectrum under deterministic action [Электронный ресурс] / V. P. Koverda, V. N. Skokov // Technical Physics. - 2013. - Vol.58, №4. - P467-470
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
RANDOM PROCESS -- 1/F SPECTRUM -- LORENTZ SPECTRUM
Аннотация: The stability of the resultant process, which appears upon the interaction of a random process having a 1/f spectrum with a deterministic action, is analyzed using the entropy maximum principle. Under the action of a harmonic force, stable resultant processes are divided into two branches depending on the amplitude of the harmonic force. Due to an exponential relaxation upon an increase in the damping coefficient, the resultant process acquires the Lorentz spectrum without high-energy low-frequency spikes

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10.
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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