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Article
Issues of analysis of the characteristic times of vacation relaxation in small solids in the case of adsorption and absorption
The process of leveling of vacancy density in solids determines the times of reaching the equilibrium state and conditions for using the equations of nonequilibrium thermodynamics, particularly using diffusion...
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Article
Times of metastable droplet relaxation to equilibrium states
Times of metastable droplet relaxation to their equilibrium state are calculated at saturated vapor pressures, depending on the droplet size. It is shown that for small droplets with radius R = 6 molecular diamet...
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Article
Nonlinear stationary torsion wave in a bar
We propose a mathematical model allowing the description of torsional wave distribution in a bar. The model includes geometrical and physical elastic nonlinearity and deplanation, i.e., the outcome of the cros...
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Article
Temperature dependence of the heat capacity and times of the establishment of vacancy equilibrium in simple crystals
The concentration range of vacancies that affect the temperature dependence of the heat capacity at constant volume C v has been determined. The times of the es...
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Article
Distribution function for relativistic charges in the vicinity of cyclotron resonance
The function of charge distribution over the momentum projections in a preset field of a circularly polarized rf transverse electromagnetic wave propagating along a constant uniform magnetic field with phase v...
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Article
Temperature dependence of the establishment time of the vacancy equilibrium in simple crystals
Establishment times of vacancy equilibrium t* in spherical samples of simple crystals of radius R due to thermal motion of atoms during the process maximally approached to the equilibrium upon lowering the temper...
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Article
The size factor in the temperature retardation of diffusion in noble gas crystals
The times t* needed for noble gas crystals to reach the equilibrium state as a result of thermal motion of atoms upon temperature lowering during a nearly equilibrium process were calculated. The t* value was det...
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Article
Molecular transport in narrow channels
The micro-hydrodynamic method is applid to the calculation of the molecular transport in narrow channels in case of capillary condensation, at the flow anisotropy resulted from the potential of the wall surfac...
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Article
Invariants of motion of a charge in the field of a circularly polarized wave
Six integrals of motion of a relativistic charge in the field of a transverse circularly polarized electromagnetic wave propagating with a phase velocity u > c are obtained from the solution of the Hamilton equat...
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Article
The evaluation of the possibility of determining the function characterizing the connectedness of pores of various sizes from adsorption measurements
The possibility of determining the function characterizing the connectedness of pores of different types and sizes from the experimental adsorption isotherms is discussed. It is shown that the presence of join...
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Article
Anisotropic temperature of charged particles in a variable electric field
The time dependence of the longitudinal and transverse temperatures in a completely ionized plasma immersed in a variable uniform electric field is analyzed by solving gas dynamics equations based on a bi-Maxw...
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Article
A system for experimental studies of the dynamics of the process of cutting metal
An information system is described that enables one to solve applied problems of the physical and mathematical simulation of the dynamic processes that occur during vibration cutting of metals. The development...
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Article
Calculation of concentration dependences of the transport characteristics of binary mixtures of dense gases
The coefficients of diffusion and viscosity of mixtures of binary gases are calculated using a modified lattice-gas model. In addition to the eigenvolume of components and interaction between atoms in a quasic...
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Article
Self-Consistent Calculation of the Compressibility and Viscosity of Dense Gases in the Lattice-Gas Model
A self-consistent calculation is performed of generalized diagrams of compressibility and shear viscosity of simple gases in a wide range of pressure (from rarefied states to 10P c) and temperature (from subcriti...
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Article
Numerical Modeling of the Translational and Chemical Disequilibria in the Front of a Strong Shock Wave
The problem of the pattern of a strong viscous shock wave in a translationally nonequilibrium dissociating gas is considered. Calculations are performed for the beam–continuum model, which takes into account t...
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Article
Concentration dependences of heat conductivity coefficients of inert gases in narrow pores
Calculation of the transfer of molecules in porous systems requires self-consistent expressions describing the kinetic transfer coefficients for various concentrations and temperatures. The concentration depen...
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Article
Numerical Study of Dense Fluid Flow in Narrow Pores
Unsteady-state dense flows in narrow slitlike pores that result from pulse perturbations of the initial steady state are analyzed for the case of argon flow in a carbon pore whose walls have microasperities. T...
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Article
Amplitude characteristic of cyclotron resonance
The motion of a charged particle under the combined action of a magnetostatic field and a circularly polarized electromagnetic wave of phase velocity u higher than c, the wave being aligned with the field, is stu...
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Article
The fundamentals of adsorption theory for a mixture of bulky molecules in slit-shaped pores with heterogeneous wall surfaces
The fundamentals of the adsorption theory for a mixture of bulky molecules blocking more than one adsorption site on the surface in slit-shaped pores with heterogeneous wall surfaces are outlined. The adsorbat...
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Article
Effect of Transitional Nonequilibrium on the Molecular–Dissociation Rate in a Hypersonic Shock Wave
The problem of the influence of a nonequilibrium (non–Maxwellian( distribution of translational energy over the degrees of freedom of molecules on the rate of their dissociation in a hypersonic shock wave is c...
