Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института теплофизики УрО РАН - результаты поиска

Вид поиска

Область поиска
в найденном
 Найдено в других БД:Каталог книг и продолжающихся изданий (88)Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН (1)Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН (2)Каталог препринтов УрО РАН (1975 г. - ) (7)Нанотехнологии (1)История Урала (2)Труды Института высокотемпературной электрохимии УрО РАН (11)Труды Института истории и археологии УрО РАН (6)Труды сотрудников Института горного дела УрО РАН (1)Труды сотрудников Института органического синтеза УрО РАН (15)Труды сотрудников Института химии твердого тела УрО РАН (42)Расплавы (1)Труды сотрудников ЦНБ УрО РАН (1)Публикации Черешнева В.А. (4)Публикации Чарушина В.Н. (10)Каталог библиотеки ИЭРиЖ УрО РАН (36)
Формат представления найденных документов:
полный информационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=REGION<.>)
Общее количество найденных документов : 78
Показаны документы с 1 по 20
 1-20    21-40   41-60   61-78 
1.

Вид документа : Статья из журнала
Шифр издания : 53/П 46
Автор(ы) : Пожарская Г. И., Самохин С. П., Скрипов В. П.
Заглавие : Диффузия броуновских частиц в критической области расслаивания раствора альфа, альфа/штрих-лутидин-вода
Параллельн. заглавия :Diffusion of Brownian Particles in the Critical Region of a,a'-Lutidine-Water Solution Separation
Место публикации : Журнал физической химии. - 1996. - Т. 70, N4. - С. 652-654
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): диффузия раствора--частицы броуновские--броуновские частицы--расслаивание растворов--раствор альфа, альфа/штрих-лутидин-вода--альфа, альфа/штрих-лутидин-вода--альфа, альфа/штрих-лутидин-вода-латекс--альфа, альфа/штрих--лутидин--вода--латекс--спектроскопия корреляционная--корреляционная спектроскопия--область гомогенная--гомогенная область--точка критическая --критическая точка
Аннотация: Методом корреляционной спектроскопии исследована серия растворов альфа, альфа/штрих-лутидин-вода-латекс в гомогенной области существования раствора альфа, альфа/штрих-лутидин-вода в окрестности критической точки расслаивания 10 в -4.5 степени эпсилон
Найти похожие

2.

Вид документа : Статья из журнала
Шифр издания : 53/P 93
Автор(ы) : Protsenko S.P., Baidakov V.G.
Заглавие : A molecular-dynamic study of a system of Lennard-Jones disks in the region of the liquid-gas transition: dynamics, structure, thermodynamic properties
Место публикации : Fluid Mechanics - Soviet Research. - 1987. - V.16, N5. - С. 66-78
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): система леннард-джонса--переход жидкости-газ--свойства термодинамические--системы магнитные--леннард-джонса система--жидкость-газ--жидкость--газ
Найти похожие

3.

Вид документа : Статья из журнала
Шифр издания : 53/Б 18
Автор(ы) : Байдаков В. Г.
Заглавие : О механизме формирования зародышей новой фазы в области сильной метастабильности
Параллельн. заглавия :On the Mechanism of Formation of Nuclei of a New Phase in a Region of Strong Metastability
Место публикации : Доклады Академии наук. - 2004. - Т. 394, N 2. - С. 179-182. - ISSN 0869-5652. - ISSN 0869-5652
Примечания : Библиогр.: с. 182 (11 назв.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): физика--зародышеобразование--метастабильность--нуклеация гомогенная--гомогенная нуклеация--компьютерное моделирование--моделирование компьютерное--спинодали
Найти похожие

4.

Вид документа : Статья из журнала
Шифр издания : 53/S 66
Автор(ы) : Skripov V. P., Puchinscics S. E.
Заглавие : Spontaneous boiling up as a specific relaxation process in polymer solvent systems
Место публикации : Journal of Applied Polymer Science. - 1996. - V. 59, №11. - С. 1659-1665
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): кипение спонтанное--спонтанное кипение--процесс специальный--специальный процесс--процесс ослабленный--ослабленный процесс--система полимерная--полимерная система--система растворяющаяся--растворяющаяся система
Аннотация: The phenomenon of spontaneous bubble nucleation in extremely supersaturated (superheated) polymer–solvent systems has been studied experimentally. Spontaneous boiling-up temperatures T* for polystyrene and poly(ethylene glycol) solutions in a number of solvents have been measured at different values of pressure p and weight fraction of polymer c by the pulse heating method. The heating rate Ṫ varied from 105 to 107 K/s. For all systems studied, the values of T* have been found to increase with increasing p and c. The T*(p, c) dependence is discussed with the use of the data on the degree of compatibility of components. The peculiarities of polymeric solutions manifest themselves in the region c → 1, as follows: (i) an abrupt increase (by 1–2 orders of magnitude) in the slope of the T*(c) dependence, and (ii) the appearance of the dependence of T* values on the heating rate. Our approach to the interpretation of this result assumes a change in the initial composition of a solution in the course of heating due to polymer decomposition. An example of the extended phase diagram of a polymer–solvent system including the kinetic surface of T*(p, c) is given
Найти похожие

5.

Вид документа : Статья из журнала
Шифр издания : 53/Б 79
Автор(ы) : Болтачев Г. Ш., Байдаков В. Г.
Заглавие : Термодинамические свойства азота, аргона, кислорода и их смесей в области фазового перехода жидкость-газ
Параллельн. заглавия :The thermodynamic properties of nitrogen, argon, oxygen, and their mixtures in the region of the liquid-gas phase transition
Место публикации : Журнал физической химии. - 2006. - V. 80, N 4. - С. 594-597: рис., табл. - ISSN 0044-4537. - ISSN 0044-4537
Примечания : Библиогр: с. 597 (9 назв.)
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): фазовый переход жидкость-газ--метастабильные области--лабидьные области--спинодали--области лабильные--области метастабильные
Аннотация: Предложена процедура построения уравнения состояния для метастабильных и лабильных областей при переходе жидкость-газ. Достигнуто согласованное описание р,Т и калорических свойств. Локализованы положения спинодалей как чистых флюидов, так и их смесей
Найти похожие

6.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Kozlova Z. R.
Заглавие : Thermal and caloric equations of state for stable and metastable Lennard-Jones fluids. I. Molecular-dynamics simulations
Место публикации : Fluid Phase Equilibria. - 2008. - Vol. 263, № 1. - С. 55-63
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): equation of state--computer simulation--lennard-jones fluid--metastable phases--spinodals
Аннотация: The method of molecular dynamics has been used to calculate the pressure, internal energy and isochoric heat capacity of the Lennard–Jones fluid for 208 states in the range of temperatures 0.35 kBT 2.0 and densities 0.001 1.2. The array of data obtained, along with stable states, includes homogeneous metastable states (supersaturated vapor, superheated and supercooled liquid). Spinodals of supersaturated vapor and superheated liquid have been approximated. In a stable region the data obtained are compared with the results of previous papers. The behavior of thermodynamic properties of the fluid in the event of homogeneity disturbance and formation of micro-heterogeneous (“two-phase”) states has been considered.
\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2008, v.263, p.55.pdf
Найти похожие

7.

Вид документа : Статья из журнала
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Kozlova Z. R.
Заглавие : The isochoric heat capacity of a metastable Lennard-Jones fluid
Место публикации : Chemical Physics Letters. - 2007. - Vol. 447, № 4-6. - С. 236-240
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): lennard-jones fluid
Аннотация: The article presents the results of molecular-dynamics calculations of the isochoric heat capacity, cv, and the (p, ?, T) – properties of the Lennard-Jones fluid in the region of liquid–gas phase transition in stable and metastable states. The system under investigation contains 2048 particles, the cut-off radius of the potential is chosen equal to 6.78?. The results of computations of the (p, ?, T) – properties have been used to approximate the location of the spinodal. Values of cv have been determined along the gas and the liquid branches of the spinodal. A thermodynamic relation that determines the value of cv on the spinodal in terms of derivatives with respect to temperature of the entropy, pressure and specific volume along the spinodal has been obtained. It is shown that molecular-dynamics data are in agreement with the results of the thermodynamic analysis.????
\\\\Expert2\\NBO\\Chemical Physics Letters\\2007, v. 447, p.236.pdf
Найти похожие

8.

Вид документа : Статья из журнала
Шифр издания : 53/B 74
Автор(ы) : Boltachev G. Sh., Baidakov V. G.
Заглавие : The Second and Third Virial Coefficients of Simple Fluids
Место публикации : High Temperature. - 2006. - Vol. 44, № 1. - С. 83-90
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): fluid condition
Аннотация: The asymptotic behavior of the second B and third C virial coefficients in the low temperature region is analyzed for fluids with a spherical pair-additive potential of interparticle interaction. The temperature dependences B( T) and C( T) are approximated by expressions which convey correctly the behavior of the virial coefficients in the low-and high-temperature limits. The free parameters of approximation formulas for pure nitrogen, argon, and oxygen are determined. The derived virial equations of state are used to calculate the limit of significant instability of the gas phase in a wide temperature range.
\\\\Expert2\\NBO\\High Temperature\\2006, v.44, p.83.pdf
Найти похожие

9.

Вид документа : Статья из журнала
Шифр издания : 53/N 89
Автор(ы) : Novruzova O. A., Galashev A. E.
Заглавие : Numerical simulation of IR absorption, reflection, and scattering in dispersed water-oxygen media
Место публикации : High Temperature. - 2008. - Vol. 46, № 1. - С. 60-68
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): ir absorption
Аннотация: The method of molecular dynamics along with the flexible model of molecules are used to study the spectral characteristics of systems of clusters of (H2O) n , (O2) m (H2O) n , and (O) i (H2O) n , m меньше либо равно 2, i меньше либо равно 4, 10 меньше либо равно n меньше либо равно 50. It is demonstrated that the integral intensity of absorption of IR radiation decays after water clusters adsorb oxygen. In addition, the adsorption of oxygen causes a significant decrease in the reflection coefficient R of monochromatic IR radiation. In so doing, the R(?) spectrum splits into bands and exhibits seven peaks in the frequency region of 0 меньше либо равно омега меньше либо равно 3500 cm в степени -1. The dissociation of oxygen molecules captured by clusters makes the peaks of R(омега) spectrum more resolved. The attachment of molecular oxygen by clusters leads to decay of the power of their IR radiation, while the capture of atomic oxygen, on the contrary, is accompanied by an increase in the rate of dissipation of energy accumulated by water aggregates.
\\\\Expert2\\NBO\\High Temperature\\2008, v.46, p.60.pdf
Найти похожие

10.

Вид документа : Статья из журнала
Шифр издания : 53/S 61
Автор(ы) : Galashev A. E., Polukhin V. A., Izmodenov I. A., Rakhmanova O. R.
Заглавие : Simulation of noncrystalline silicon nanoparticles: a computer experiment
Место публикации : Glass Physics and Chemistry. - 2006. - Vol. 32, № 1. - С. 99-105
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): silicon
Аннотация: The physical properties of vitreous and amorphous silicon nanoparticles containing 300, 400, and 500 atoms are investigated by the molecular dynamics method. For a limited number of degrees of freedom, the internal energy of the amorphous phase is often less than the internal energy of the vitreous phase. The structure of the central region of silicon nanoparticles is studied in detail by constructing Voronoi polyhedra, which make it possible to determine the mean length of bonds and their number. The differences between the structures of nanoparticles in the amorphous and vitreous states are determined by the differences in the distribution of angles between Si-Si bonds and the distribution of bond lengths. Local arrangements of atoms in vitreous silicon nanoparticles are characterized by larger variations in the interatomic distances. The self-diffusion coefficients determined from mean-square atomic displacements are smaller for amorphous nanoparticles due to dominant diffusion over dangling Si-Si bonds.
\\\\Expert2\\NBO\\Glass Physics and Chemistry\\2006, v. 32, N. 1, p.99.pdf
Найти похожие

11.

Вид документа : Статья из журнала
Шифр издания : 53/K 79
Автор(ы) : Koverda V. P., Skokov V. N.
Заглавие : An origin of 1/f fluctuations at a nonequilibrium phase transition
Место публикации : Physica A. - 1999. - V. 262, N 3-4. - С. 376-387
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): 1/f-noise--nonequilibrium phase transitions--high-temperature superconductor--boiling--stochastic equations--films
Аннотация: We present the results of experimental study of an intensive source of wide-band 1/f noise whose generation appears in a system of two interacting nonequilibrium phase transitions. Such a process has been realized in the region of superposition of a superconductor-normal conductor phase transition on a liquid-vapor crisis transition in a boiling cooler. A mathematical model describing phase transitions in a dynamical system with two interacting order parameters, converting "white" noise into two stationary stochastic processes with 1/f and 1/f(2) spectra has been suggested. The properties of model oscillations with 1/f spectrum are qualitatively adequate to those observed in experiment. The characteristic difference of model oscillations with a 1/f(2) spectrum from classic random walks has also been noted
Найти похожие

12.

Вид документа :
Шифр издания : 53/H 65
Автор(ы) : North M. T., Sarraf D. B., Rosenfeld J. H., Maydanik Yu. F., Vershinin S. V.
Заглавие : High heat flux loop heat pipes
Место публикации : 6th European Symposium on Space Environmental Control Systems: Noordwijk, Netherlands, 20-22 may 1997 . - 1997. - Vol. 400. - С. 371-376
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): loop heat pipes --power loads--gravitational heads
Аннотация: Loop Heat Pipes (LHPs) can transport very large thermal power loads, over long distances, through flexible, small diameter tubes and gravitational heads. While recent transported as much as 1500 W, the peak heat flux through a LHP's evaporator has been limited to about 0.07 MW/m(2). This limitation is due to the arrangement of vapor passages next to the heat load which is one of the conditions necessary to ensure self priming of the device. This paper describes work aimed at raising this limit by threefold to tenfold. Two approaches were pursued. One optimized the vapor passage geometry for the high heat flux conditions. The geometry improved the heat flow into the wick and working fluid. This approach also employed a finer pored wick to support higher vapor flow losses. The second approach used a bidisperse wick material within the circumferential vapor passages. The bidisperse material increased the thermal conductivity and the evaporative surface area in the region of highest heat flux, while providing a flow path for the vapor. Proof-of-concept devices were fabricated and tested for each approach. Both devices operated as designed and both demonstrated operation at a heat flux of 0.70 MW/m(2) This performance exceeded the known state of the art by a factor of more than six for both conventional heat pipes and for loop heat pipes using ammonia. In addition, the bidisperse-wick device demonstrated boiling heat transfer coefficients up to 100,000 W/m(2).K, and the fine pored device demonstrated an orientation independence with its performance essentially unaffected by whether its evaporator was positioned above, below or level with the condenser
Найти похожие

13.

Вид документа :
Шифр издания : 53/P 31
Автор(ы) : Pastukhov V. G., Maydanik Yu. F., Fershtater Y. G.
Заглавие : Adaptation of loop heat pipes to zero-g conditions
Место публикации : 6th European Symposium on Space Environmental Control Systems: Noordwijk, Netherlands, 20-22 may 1997 . - 1997. - Vol.400. - С. 385-391
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): loop heat pipes --heat-transport --thermocapillary phenomena
Аннотация: Loop heat pipes (LHPs) posses a great variety of valuable properties, which make them quite promising for application both on the Earth and in space. Among these are the LHP high heat-transport capacity at an any orientation in the field of mass forces, good mass-and-size parameters and the possibility of an arbitrary configuration of transport lines. At the same time such a drawback of LHPs of the conventional type as the instability of start up and operation in the region of low heat loads reduces their performance. The problem is connected, in a general case, with the unfavourable distribution of the vapor and the liquid phases of the working fluid in the evaporator. There is reason to believe that the LHP operation can also be significantly affected by zero-g conditions, in which the distribution of a working fluid is pre-determined only by the action of surface forces and the thermocapillary phenomena. The paper performs a general analysis of the necessary conditions imposed on the construction of LHP and some designs that contribute to the retention of serviceability in zero-g conditions at low heat loads. It gives the results of laboratory investigations of an adapted ammonia LHP with a heat-transfer capacity up to 2 kWxm
Найти похожие

14.

Вид документа :
Шифр издания : 53/H 65
Автор(ы) : North M. T., Sarraf D. B., Rosenfeld J. H., Maydanik Yu. F., Vershinin S. V.
Заглавие : High heat flux loop heat pipes
Место публикации : SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM (STAIF-97), PTS 1-3: 1ST CONFERENCE ON FUTURE SCIENCE & EARTH SCIENCE MISSIONS; 1ST CONFERENCE ON SYNERGISTIC POWER & PROPULSION SYSTEMS TECHNOLOGY; 1ST CONFERENCE ON APPLICATIONS OF THERMOPHYSICS IN MICROGRAVITY; 2ND CONFERENCE ON COMMERCIAL DEVELOPMENT OF SPACE; - 2ND CONFERENCE ON NEXT GENERATION LAUNCH SYSTEMS; 14TH SYMPOSIUM ON SPACE NUCLEAR POWER AND PROPULSION, ALBUQUERQUE, 26-30 JAN, 1997 . - 1997. - Vol.387. - С. 561-566
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): loop heat pipes --thermal power loads--vapor flow losses
Аннотация: Loop Heat Pipes (LHPs) can transport very large thermal power loads, over long distances, through flexible, small diameter tubes and against high gravitational heads. While recent LHPs have transported as much as 1500 W, the peak heat flux through a LHP's evaporator has been limited to about 0.07 MW/m(2). This limitation is due to the arrangement of vapor passages next to the heat load which is one of the conditions necessary to ensure self priming of the device. This paper describes work aimed at raising this limit by threefold to tenfold. Two approaches were pursued. One optimized the vapor passage geometry for the high heat flux conditions. The geometry improved the heat flow into the wick and working fluid. This approach also employed a finer pored wick to support higher vapor flow losses. The second approach used a bidisperse wick material within the circumferential vapor passages. The bidisperse material increased the thermal conductivity and the evaporative surface area in the region of highest heat flux, while providing a flow path for the vapor. Proof-of-concept devices were fabricated and tested for each approach. Both devices operated as designed and both demonstrated operation at a heat flux of 0.70 MW/m(2). This performance exceeded the known state of the art by a factor of more than six for both conventional heat pipes and for loop heat pipes using ammonia. In addition, the bidisperse-wick device demonstrated boiling heat transfer coefficients up to 100,000 W/m(2) K, and the fine pored device demonstrated an orientation independence with its performance essentially unaffected by whether its evaporator was positioned above, below or level with the condenser
Найти похожие

15.

Вид документа :
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Tipeev O. A.
Заглавие : Metastable extension of the melting line and the critical endpoint
Место публикации : Journal of Non-Crystalline Solids : 9th International Symposium on Crystallization in Glasses and Liquids Location, Foz do Iguacu, BRAZIL, 10-13 sep. , 2009 . - 2009. - Vol.356, №52-54. - С. 2923-2927
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): molecular-dynamics simulation--lennard-jones system--negative pressures
Аннотация: Molecular-dynamics methods have been employed to calculate the (p, rho, T)-properties and the internal energy of the Lennard-Jones crystal and liquid phases in both stable and metastable states to the boundaries of limiting supersaturations. Thermal and caloric equations of state have been formulated for determining the parameters of phase equilibrium and approximating the boundaries of essential instability (the spinodal curves). The results of calculations of phase equilibrium parameters from the condition of chemical potentials equality show that the melting line in the region of its metastable extension approaches the spinodal of a stretched liquid. The point of contact (the critical endpoint) is characterized by the following parameter values: T*(m)= 0.5286, p*(m) = -1.7128, rho*(m,l) = 0.7374, rho*(m,c) = 0.9423. The melting line and its metastable extension were also calculated by simulations of two-phase liquid-crystal systems. A comparison of these two approaches has been performed. (C) 2010 Elsevier B.V. All rights reserved
Найти похожие

16.

Вид документа :
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Kozlova Z. R.
Заглавие : The self-diffusion coefficient in metastable states of a Lennard-Jones fluid
Место публикации : Chemical Physics Letters. - 2010. - Vol.500, №1-3. - С. 23-27
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): molecular-dynamics simulation--critical points--viscosity
Аннотация: Molecular-dynamics computer simulation has been used to calculate the self-diffusion coefficient of a Lennard-Jones fluid in the interval of reduced temperatures T* = 0.35-2.0, through mean-squared particles displacements and the velocity autocorrelation function. Calculations have been performed for systems in stable and metastable states up to the boundary of spontaneous nucleation in a model of a fluid consisting of 2048 particles. The values of the self-diffusion coefficient on the spinodals of a superheated liquid and supersaturated vapor have been determined. It has been established that in the region of supercooled states of the liquid phase on an isotherm the logarithm of the self-diffusion coefficient is a linear function of the pressure
Найти похожие

17.

Вид документа :
Шифр издания : 53/B 74
Автор(ы) : Boltachev G. Sh., Baidakov V. G.
Заглавие : The thermodynamic properties of nitrogen, argon, oxygen, and their mixtures in the region of the liquid-gas phase transition
Место публикации : Russian Journal of Physical Chemistry. - 2006. - Vol.80, №4. - С. 501-504
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): equation of state--pressures--mpa
Аннотация: A procedure for constructing the equation of state for metastable and labile regions in the liquid gas phase transition is suggested. A consistent description of p, rho, T, and caloric properties was obtained. The spinodals of both pure fluids and their mixtures were located
Найти похожие

18.

Вид документа :
Шифр издания : 53/S 89
Автор(ы) : Vshivkov S. A., Faizullin M. Z.
Заглавие : Effect of molecular dimensions of components on phase transitions in solutions of oligomeric polyethers
Место публикации : Polymer Science. Series A. - 2009. - Vol.51, №9. - С. 974-978
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): 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
Найти похожие

19.

Вид документа :
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G., Protsenko S.P., Tipeev A. O.
Заглавие : Metastable extension of the melting line and the critical endpoint
Место публикации : Journal of Non-Crystalline Solids. - 2010. - Vol.356, №52-54. - С. 2923-2927
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): molecular-dynamics simulation--lennard-jones system--negative
Аннотация: Molecular-dynamics methods have been employed to calculate the (p, ρ, T)-properties and the internal energy of the Lennard-Jones crystal and liquid phases in both stable and metastable states to the boundaries of limiting supersaturations. Thermal and caloric equations of state have been formulated for determining the parameters of phase equilibrium and approximating the boundaries of essential instability (the spinodal curves). The results of calculations of phase equilibrium parameters from the condition of chemical potentials equality show that the melting line in the region of its metastable extension approaches the spinodal of a stretched liquid. The point of contact (the critical endpoint) is characterized by the following parameter values: Tm⁎ = 0.5286, pm⁎ = − 1.7128, ρm,l⁎ = 0.7374, ρm,c⁎ = 0.9423. The melting line and its metastable extension were also calculated by simulations of two-phase liquid–crystal systems. A comparison of these two approaches has been performed.
Найти похожие

20.

Вид документа :
Шифр издания : 53/B 16
Автор(ы) : Baidakov V. G.
Заглавие : Experimental investigations of superheated and supercooled water (review of papers of the school of the academician V. P. Skripov)
Место публикации : NATO Science for Peace and Security Series A: Chemistry and Biology. - 2010. - С. 253-270
ББК : 53
Предметные рубрики: ФИЗИКА
Ключевые слова (''Своб.индексиров.''): sound velocity--heavy water--superheating
Аннотация: The review presents the results of experimental investigations of nucleation in superheated light and heavy water in the range of nucleation rates from 104 to 1029 s−1m−3. A study is performed of the kinetics of crystallization of droplets of superheated water and amorphous water layers. Measurements have been made of the density, sound velocity, dielectric constant of light and heavy water in the vicinity of the phase equilibrium line with deep entry into the region of metastable (superheated) states. The local and integral characteristics of streams of boiling-up water flowing out into the atmosphere through a short channel have been investigated. One can see the determining role of a vapor phase in such a process at a temperature above 0.9T c , where T c is the temper-temperature at the critical point
Найти похожие

 1-20    21-40   41-60   61-78 
 

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика