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 Найдено в других БД:Каталог книг и продолжающихся изданий (9)Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН (2)Нанотехнологии (1)Труды Института высокотемпературной электрохимии УрО РАН (6)Труды сотрудников Института органического синтеза УрО РАН (8)Труды сотрудников Института химии твердого тела УрО РАН (24)Расплавы (3)Публикации Чарушина В.Н. (5)
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Общее количество найденных документов : 152
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1.
Инвентарный номер: нет.
   
   A 10

   
    A computer study of the absorption of infrared radiation by systems of molecular clusters [Текст] / A. N. Novruzov, V. N. Chukanov, O. R. Rakhmanova, A. E. Galashev // High Temperature. - 2006. - Vol. 44, № 6. - С. 932-940
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR CLASTERS
Аннотация: The method of molecular dynamics is used to investigate the process of absorption of N2O and CH4 molecules by water clusters and to determine the frequency spectra of permittivity for systems consisting of clusters mixed in different ratios, namely, (H2O)n, (N2O)i(H2O)10, and (CH4)i(H2O)10. IR-radiation absorption spectra for these systems are calculated and analyzed; the radiation power scattered by these systems and the tangent of dielectric loss angle are determined. The inclusion of anharmonicity of phonon oscillation makes it possible to explain the origin of characteristic frequencies appearing in IR spectra of mixtures of cluster systems. The capture of molecules of greenhouse gases by an ultradisperse aqueous medium affects the ability of this medium to absorb terrestrial radiation, i.e., reduces the greenhouse effect.

\\\\Expert2\\NBO\\High Temperature\\2006, v.44, p.932.pdf
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2.
Инвентарный номер: нет.
   
   A 10

   
    A computer study of the absorption of infrared radiation by systems of molecular clusters [Текст] / A. N. Novruzov, V. N. Chukanov, O. R. Rakhmanova, A. E. Galashev // High Temperature. - 2006. - Vol. 44, № 6. - С. 932-940
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR CLASTERS
Аннотация: The method of molecular dynamics is used to investigate the process of absorption of N2O and CH4 molecules by water clusters and to determine the frequency spectra of permittivity for systems consisting of clusters mixed in different ratios, namely, (H2O)n, (N2O)i(H2O)10, and (CH4)i(H2O)10. IR-radiation absorption spectra for these systems are calculated and analyzed; the radiation power scattered by these systems and the tangent of dielectric loss angle are determined. The inclusion of anharmonicity of phonon oscillation makes it possible to explain the origin of characteristic frequencies appearing in IR spectra of mixtures of cluster systems. The capture of molecules of greenhouse gases by an ultradisperse aqueous medium affects the ability of this medium to absorb terrestrial radiation, i.e., reduces the greenhouse effect.

\\\\Expert2\\NBO\\High Temperature\\2006, v.44, p.932.pdf
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3.
Инвентарный номер: нет.
   
   B 16

    Baidakov, V. G.
    Comparison of Different Approaches to the Determination of the Work of Critical Cluster Formation / V. G. Baidakov, G. Sh. Boltachev, J. W. P. Schmelzer // Journal of Colloid and Interface Sience. - 2000. - Vol. 231, № 2. - С. 312-321
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRITICAL CLUSTER -- GIBBS' METHOD -- NUCLEATION RATES
Аннотация: A comparative analysis of the results of determination of the work of critical cluster formation in nucleation theory for three different methods of evaluation—Gibbs' method, the van der Waals-Cahn and Hilliard, and a newly developed modified Gibbs' approach—is given. As a model system for comparison, regular solutions are chosen. In addition to the work of critical cluster formation, the composition of the critical clusters, their characteristic sizes and the values of the surface tension are determined in dependence on the initial supersaturation in the system or, equivalently, on the size of the critical clusters. It is found, in particular, that, for regular solutions, Tolman's equation cannot serve as a first approximation for the description of the curvature dependence of the surface tension even for large cluster sizes and an alternative formula is developed. It is shown that the latter two mentioned methods of determination of the work of critical cluster formation (the van der Waals-Cahn and Hilliard and the modified Gibbs' approach) lead—at least for the model system considered—to qualitatively and partly quantitatively equivalent results. Nevertheless, differences remain which may lead to quantitative deviations when applied to the determination of the steady-state nucleation rates. The possible origin of such deviations is discussed and some further directions of analysis are anticipated

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4.
Инвентарный номер: нет.
   
   B 16

    Baidakov, V. G.
    Comparison of Different Approaches to the Determination of the Work of Critical Cluster Formation / V. G. Baidakov, G. Sh. Boltachev, J. W. P. Schmelzer // Journal of Colloid and Interface Sience. - 2000. - Vol. 231, № 2. - С. 312-321
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRITICAL CLUSTER -- GIBBS' METHOD -- NUCLEATION RATES
Аннотация: A comparative analysis of the results of determination of the work of critical cluster formation in nucleation theory for three different methods of evaluation—Gibbs' method, the van der Waals-Cahn and Hilliard, and a newly developed modified Gibbs' approach—is given. As a model system for comparison, regular solutions are chosen. In addition to the work of critical cluster formation, the composition of the critical clusters, their characteristic sizes and the values of the surface tension are determined in dependence on the initial supersaturation in the system or, equivalently, on the size of the critical clusters. It is found, in particular, that, for regular solutions, Tolman's equation cannot serve as a first approximation for the description of the curvature dependence of the surface tension even for large cluster sizes and an alternative formula is developed. It is shown that the latter two mentioned methods of determination of the work of critical cluster formation (the van der Waals-Cahn and Hilliard and the modified Gibbs' approach) lead—at least for the model system considered—to qualitatively and partly quantitatively equivalent results. Nevertheless, differences remain which may lead to quantitative deviations when applied to the determination of the steady-state nucleation rates. The possible origin of such deviations is discussed and some further directions of analysis are anticipated

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5.
Инвентарный номер: нет.
   
   C 73

   
    Computer simulation of oxygen and nitrate ion absorption by water clusters [Электронный ресурс] / A. E. Galashev, O. R. Rakhmanova, O. A. Novruzova, A. A. Galasheva, A. N. Novruzov // Colloid Journal (Translation of Kolloidnyi Zhurnal)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
AQUEOUS SYSTEM -- DIELECTRIC PERMITTIVITIES -- FLEXIBLE MOLECULES
Аннотация: Using the molecular dynamics method, the joint absorption of oxygen and nitrate ions by water clusters is studied in terms of the polarizable model of flexible molecules. Significant fluctuations are observed in the number of hydrogen bonds in the clusters during the addition of MO 3 -ions to water-oxygen aggregates. Dielectric permittivity noticeably changes upon the addition of O 2 molecules to water clusters and nitrate ions to oxygen-containing water clusters. After the absorption of oxygen molecules and nitrate ions, water clusters markedly lose the ability to IR absorption. The Raman spectrum of a medium formed from disperse aqueous system, oxygen, and nitrate ions displays a greater number of bands than the spectrum of a system of pure water clusters

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6.
Инвентарный номер: нет.
   
   C 73

   
    Computer simulation of oxygen and nitrate ion absorption by water clusters [Электронный ресурс] / A. E. Galashev, O. R. Rakhmanova, O. A. Novruzova, A. A. Galasheva, A. N. Novruzov // Colloid Journal (Translation of Kolloidnyi Zhurnal)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
AQUEOUS SYSTEM -- DIELECTRIC PERMITTIVITIES -- FLEXIBLE MOLECULES
Аннотация: Using the molecular dynamics method, the joint absorption of oxygen and nitrate ions by water clusters is studied in terms of the polarizable model of flexible molecules. Significant fluctuations are observed in the number of hydrogen bonds in the clusters during the addition of MO 3 -ions to water-oxygen aggregates. Dielectric permittivity noticeably changes upon the addition of O 2 molecules to water clusters and nitrate ions to oxygen-containing water clusters. After the absorption of oxygen molecules and nitrate ions, water clusters markedly lose the ability to IR absorption. The Raman spectrum of a medium formed from disperse aqueous system, oxygen, and nitrate ions displays a greater number of bands than the spectrum of a system of pure water clusters

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7.
Инвентарный номер: нет.
   
   C 74

   
    Computer simulation of the adsorption of acetylene by disperse aqueous medium. IR spectra / A. N. Novruzov, O. R. Rakhmanova, O. A. Novruzova, A. E. Galashev // Russian Journal of General Chemistry. - 2008. - Vol. 78, № 1. - С. 73-81
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULES ACETYLENE -- WATER CLUSTERS -- IR ABSORPTION

\\\\Expert2\\NBO\\Russian Journal of General Chemistry\\2008, V. 78, N 1, p.73.pdf
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8.
Инвентарный номер: нет.
   
   C 74

   
    Computer simulation of the adsorption of acetylene by disperse aqueous medium. IR spectra / A. N. Novruzov, O. R. Rakhmanova, O. A. Novruzova, A. E. Galashev // Russian Journal of General Chemistry. - 2008. - Vol. 78, № 1. - С. 73-81
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULES ACETYLENE -- WATER CLUSTERS -- IR ABSORPTION

\\\\Expert2\\NBO\\Russian Journal of General Chemistry\\2008, V. 78, N 1, p.73.pdf
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9.
Инвентарный номер: нет.
   
   D 98

   
    Dynamics of transition processes and structure formation in critical heat-mass transfer regimes during liquid boiling and cavitation / A. N. Pavlenko, V. P. Koverda, A. V. Skokov, A. V. Reshetnikov, A. V. Vinogradov, A. S. Surtaev // Journal of Engineering Thermophysics. - 2009. - Vol.18, №1. - С. 20-38
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
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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10.
Инвентарный номер: нет.
   
   D 98

   
    Dynamics of transition processes and structure formation in critical heat-mass transfer regimes during liquid boiling and cavitation / A. N. Pavlenko, V. P. Koverda, A. V. Skokov, A. V. Reshetnikov, A. V. Vinogradov, A. S. Surtaev // Journal of Engineering Thermophysics. - 2009. - Vol.18, №1. - С. 20-38
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
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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