N 89 Novruzova, O. A. IR spectra of aqueous disperse systems adsorbed atmospheric gases: 1. Nitrogen [Текст] / O. A. Novruzova, A. A. Galasheva, A. E. Galashev // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2007. - Vol. 69, № 4. - С. 474-482 Рубрики: ФИЗИКА Кл.слова (ненормированные): IR SPECTRA Аннотация: Spectral characteristics of (H2O) i , N2(H2O) i , and (N2)2(H2O) i cluster systems, where 10 меньше либо равно i меньше либо равно 50, are studied in the 0 меньше либо равно эпсилон меньше либо равно 3500 cm в степени -1 frequency range with the molecular dynamics method on the basis of a flexible molecule model. After nitrogen is captured by an aqueous disperse system, the absorption of the IR radiation by this system increases owing to the enhancement of intramolecular vibrations. In general, the reflection of the outer IR radiation by nitrated aqueous disperse systems is attenuated; however, when the nitrogen concentration increases twofold, there is a tendency toward an increase in the fraction of reflected radiation. As the nitrogen concentration in a system of water clusters rises, the power of radiation emitted by the system increases significantly and the number of electrons interacting with the outer IR radiation decreases. \\\\Expert2\\NBO\\Colloid Journal\\2007, V.69, N4,474.pdf |
R 55 Rifert, V. G. Evaporation heat transfer in liquid films flowing down horizontal smooth and longitudinaly profiled tubes / V. G. Rifert, Ju. V. Putilin, V. L. Podbereznyi // Journal of Enhanced Heat Transfer . - 2001. - Vol.8, №2. - С. 91-97 Рубрики: ФИЗИКА Кл.слова (ненормированные): ENHANCEMENT -- EVAPORATION -- LONGITUDINAL PROFILE Аннотация: The heat transfer mechanism of a liquid film flowing down horizontal tubes is studied by experimental determination of local and average heat transfer coefficients. A method of its enhancement is developed which is based on the break-down of the heat boundary layer by longitudinal fins and grooves. The calculated functions and recommendations on geometrical parameters of profiling, which allow heat transfer enhancement by a factor of 1.4-1.9 and overall "vapor-liquid" heat transfer by a factor of 1.3-1.5, are given |
G 15 Galashev, A. E. Modeling the infrared and raman spectra of silicon dioxide clusters absorbing water [Электронный ресурс] / A. E. Galashev, O. R. Rakhmanova, l. A. Zemnukhova // Russian Journal of Physical Chemistry A, Focus on Chemistry. - 2011. - Vol.85, №6. - P955-960 Рубрики: ФИЗИКА Кл.слова (ненормированные): IR AND RAMAN SPECTRA -- MOLECULAR DYNAMICS METHOD -- SILICON DIOXIDE CLUSTERS Аннотация: The effect of absorbed water on the dielectric properties of silicon dioxide nanoparticles is studied by the molecular dynamic method. It is demonstrated using the model of flexible molecules that increasing the number of water molecules in the (SiO2)50 cluster to 40 results in an enhancement of absorption of infrared radiation over the frequency range 0 cm-1 ≤ ω ≤ 1000 cm-1. It is ascertained that the absorption of water molecules by the (SiO2)50 cluster considerably alters the shape of Raman spectra of light, smoothing all the peaks after the first one, and that water molecules are concentrated near the cluster surface formed by SiO2 structural units |
N 89 Novruzova, O. A. IR spectra of aqueous disperse systems adsorbed atmospheric gases: 1. Nitrogen [Текст] / O. A. Novruzova, A. A. Galasheva, A. E. Galashev // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2007. - Vol. 69, № 4. - С. 474-482 Рубрики: ФИЗИКА Кл.слова (ненормированные): IR SPECTRA Аннотация: Spectral characteristics of (H2O) i , N2(H2O) i , and (N2)2(H2O) i cluster systems, where 10 меньше либо равно i меньше либо равно 50, are studied in the 0 меньше либо равно эпсилон меньше либо равно 3500 cm в степени -1 frequency range with the molecular dynamics method on the basis of a flexible molecule model. After nitrogen is captured by an aqueous disperse system, the absorption of the IR radiation by this system increases owing to the enhancement of intramolecular vibrations. In general, the reflection of the outer IR radiation by nitrated aqueous disperse systems is attenuated; however, when the nitrogen concentration increases twofold, there is a tendency toward an increase in the fraction of reflected radiation. As the nitrogen concentration in a system of water clusters rises, the power of radiation emitted by the system increases significantly and the number of electrons interacting with the outer IR radiation decreases. \\\\Expert2\\NBO\\Colloid Journal\\2007, V.69, N4,474.pdf |
R 55 Rifert, V. G. Evaporation heat transfer in liquid films flowing down horizontal smooth and longitudinaly profiled tubes / V. G. Rifert, Ju. V. Putilin, V. L. Podbereznyi // Journal of Enhanced Heat Transfer . - 2001. - Vol.8, №2. - С. 91-97 Рубрики: ФИЗИКА Кл.слова (ненормированные): ENHANCEMENT -- EVAPORATION -- LONGITUDINAL PROFILE Аннотация: The heat transfer mechanism of a liquid film flowing down horizontal tubes is studied by experimental determination of local and average heat transfer coefficients. A method of its enhancement is developed which is based on the break-down of the heat boundary layer by longitudinal fins and grooves. The calculated functions and recommendations on geometrical parameters of profiling, which allow heat transfer enhancement by a factor of 1.4-1.9 and overall "vapor-liquid" heat transfer by a factor of 1.3-1.5, are given |
G 15 Galashev, A. E. Modeling the infrared and raman spectra of silicon dioxide clusters absorbing water [Электронный ресурс] / A. E. Galashev, O. R. Rakhmanova, l. A. Zemnukhova // Russian Journal of Physical Chemistry A, Focus on Chemistry. - 2011. - Vol.85, №6. - P955-960 Рубрики: ФИЗИКА Кл.слова (ненормированные): IR AND RAMAN SPECTRA -- MOLECULAR DYNAMICS METHOD -- SILICON DIOXIDE CLUSTERS Аннотация: The effect of absorbed water on the dielectric properties of silicon dioxide nanoparticles is studied by the molecular dynamic method. It is demonstrated using the model of flexible molecules that increasing the number of water molecules in the (SiO2)50 cluster to 40 results in an enhancement of absorption of infrared radiation over the frequency range 0 cm-1 ≤ ω ≤ 1000 cm-1. It is ascertained that the absorption of water molecules by the (SiO2)50 cluster considerably alters the shape of Raman spectra of light, smoothing all the peaks after the first one, and that water molecules are concentrated near the cluster surface formed by SiO2 structural units |