Results 11 to 20 of about 5,965,370 (296)

The concept of mass-density in classical thermodynamics and the Boltzmann kinetic equation for dilute gases [PDF]

open access: yes, 2008
In this paper we discuss the mass-density of gas media as represented in kinetic theory. It is argued that conventional representations of this variable in gas kinetic theory contradict a macroscopic field variable and thermodynamic property in classical
Reese, Jason M., Dadzie, S. Kokou
core   +4 more sources

Properties of the diffusion and drift kinetic coefficients in momentum space for a cold Fermi system [PDF]

open access: yesЯдерна фізика та енергетика, 2023
Using the methods of kinetic theory, expressions for the diffusion and drift coefficients for a cold Fermi system are obtained. Their dependencies on the momentum are calculated for the step distribution function as well as in the case of excitation of a
S. V. Lukyanov
doaj   +1 more source

Mpemba-like effect protocol for granular gases of inelastic and rough hard disks

open access: yesFrontiers in Physics, 2022
We study the conditions under which a Mpemba-like effect emerges in granular gases of inelastic and rough hard disks driven by a class of thermostats characterized by the splitting of the noise intensity into translational and rotational counterparts ...
Alberto Megías   +2 more
doaj   +1 more source

Trails in Kinetic Theory

open access: yes, 2021
In recent decades, kinetic theory - originally developed as a field of mathematical physics - has emerged as one of the most prominent fields of modern mathematics.
Giacomo Albi   +4 more
core   +1 more source

Chiral kinetic theory from effective field theory revisited

open access: yesJournal of High Energy Physics, 2019
We revisit the chiral kinetic equation from high density effective theory approach, finding a chiral kinetic equation differs from counterpart derived from field theory in high order terms in the O(1/μ) expansion, but in agreement with the equation ...
Shu Lin, Aradhya Shukla
doaj   +1 more source

NONLOCAL KINETIC THEORY [PDF]

open access: yesInternational Journal of Modern Physics B, 2000
The short time behavior of a disturbed system is influenced by off-shell motion and characterized by the reduced density matrix possessing high energetic tails. After this short time regime the time evolution is controlled by small gradients. This leads to a nonlocal Boltzmann equation for the quasiparticle distribution and a functional relating the ...
Morawetz, Klaus   +2 more
openaire   +2 more sources

Kinetic theory of aggregation in granular flow [PDF]

open access: yes, 2011
This article presents a mathematical formulation of the aggregation kinetics in granular flow. The traditional kinetic theory and its generalized application to granular flow does not allow for particle size to change with time thus cannot be used to ...
L. Liu, Liu, L., Liu, Lande
core   +1 more source

Kinetic Theory beyond the Stosszahlansatz

open access: yesEntropy, 2017
In a recent paper (Chliamovitch, et al., 2015), we suggested using the principle of maximum entropy to generalize Boltzmann’s Stosszahlansatz to higher-order distribution functions.
Gregor Chliamovitch   +2 more
doaj   +1 more source

Kinetic theory of cluster dynamics [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 2016
In a Newtonian system with localized interactions the whole set of particles is naturally decomposed into dynamical clusters, defined as finite groups of particles having an influence on each other's trajectory during a given interval of time. For an ideal gas with short-range intermolecular force, we provide a description of the cluster size ...
Patterson, Robert I. A.   +2 more
openaire   +4 more sources

Microscopic theory of adsorption kinetics

open access: yesThe Journal of Chemical Physics, 2023
Adsorption is the accumulation of a solute at an interface that is formed between a solution and an additional gas, liquid, or solid phase. The macroscopic theory of adsorption dates back more than a century and is now well-established. Yet, despite recent advancements, a detailed and self-contained theory of single-particle adsorption is still lacking.
Yuval Scher   +3 more
openaire   +3 more sources

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