6 citations · 11 across the 29 of their papers we have counts for
13 papers · 1 filter
Classical Linear Harmonic Oscillators to Describe Thermodynamic Properties of Quantum Linear Harmonic Oscillators and Solids
Ikhtier Holmamatovich Umirzakov
As known all physical properties of solids are described well by the system of quantum linear harmonic oscillators. It is shown in the present paper that the system consisting of c…
Comments On the heat capacity of liquids at high temperatures, S.M. Stishov, Physica A 478 (2017) 205
Ikhtier Umirzakov
It is shown that the isochoric heat capacity of dense gas, fluid and liquid decreases with increasing temperature at arbitrary values of a density for many pair interaction potenti…
Comments on Van der Waals supercritical fluid: Exact formulas for special lines [J. Chem. Phys. 135, 084503 (2011)]
I. H. Umirzakov
The equations for Widom lines for the supercritical van der Waals fluid were considered in the paper J. Chem. Phys. 135, 084503 (2011). But the equations for the speed of sound and…
Comments on Failures of van der Waals Equation at the Gas Liquid Critical Point, L. V. Woodcock, International Journal of Thermophysics 2018 39 120
I. H. Umirzakov
These comments are a response to the discussion presented in the above paper concerning the New comment on Gibbs Density Surface of Fluid Argon, Revised Critical Parameters by Umir…
Comments on Generalization of thermodynamics in of fractional-order derivatives and calculation of heat transfer properties of noble gases, Journal of Thermal Analysis and Calorimetry 2018 133, 1189 1194
I. H. Umirzakov
It is shown that the equations for pressure, entropy and the isochoric heat capacity obtained by using generalization of the equilibrium thermodynamics in fractional derivatives in…
New Comment on Gibbs Density Surface of Fluid Argon: Revised Critical Parameters, L. V. Woodcock, Int. J. Thermophys. (2014) 35, 1770-1784
Ikhtier H. Umirzakov
It is shown that the existence of single critical point of the fluid described by van der Waals equation of state is not the hypothesis and it is the consequence of the thermodynam…
Comments on Second caloric virial coefficients for real gases and combined spherical symmetric potential for simple molecular interactions
I. H. Umirzakov
It is shown that the interaction potentials for argon, krypton, xenon, carbon dioxide, ammonia, water, n-pentane, n-octane, 1-propanol, suggested in [1] cannot describe experimenta…
Correlation of the critical parameters of the gas-liquid phase transition and the density of the crystal at zero absolute temperature
Ikhtier Umirzakov
The empirical formula of Timmermanns connecting the density of the crystal at zero absolute temperature with the parameters of the critical point of the gas-liquid phase transition…
Exact solution of a kinetic equation of one step processes of growth and decay
Ikhtier Umirzakov
The exact solution of the kinetic equation of the one step process of a growth (birth) in the presence of sources (runs-off) is found for arbitrary dependence of the rate of the gr…
About the influence of the temperature and pressure on the fractal dimension of defects in crystal structures
Ikhtier Umirzakov
It is shown that the results presented in the article 'The influence of the temperature and pressure on a fractal dimension of defects in crystal structures' by V.B. Fedoseev (Butl…
Some comments on `Equation for the second virial coefficient`
I. H. Umirzakov
The second viral coefficient calculated using the equation suggested in the paper of Kaplun A.B., Meshalkin A.B. Equation for the second virial coefficient published in High temper…
Equilibrium size distribution function of clusters in finite system
I. H. Umirzakov
The equilibrium size distribution function of clusters (nanoparticles) in the system of finite number of molecules (atoms) in finite closed volume with constant total energy (isola…
Microcanonical ensembles of systems with mechanical constraints
I. H. Umirzakov
We have obtained an exact expression for the phase-space volume corresponding to a microcanonical ensemble of systems under center of mass, total linear and angular momenta conserv…