Results 31 to 40 of about 5,965,370 (296)

Turbulence through the Spyglass of Bilocal Kinetics

open access: yesEntropy, 2018
In two recent papers we introduced a generalization of Boltzmann’s assumption of molecular chaos based on a criterion of maximum entropy, which allowed setting up a bilocal version of Boltzmann’s kinetic equation.
Gregor Chliamovitch, Yann Thorimbert
doaj   +1 more source

Conservative numerical methods for model kinetic equations [PDF]

open access: yes, 2007
A new conservative discrete ordinate method for nonlinear model kinetic equations is proposed. The conservation property with respect to the collision integral is achieved by satisfying at the discrete level approximation conditions used in deriving the ...
Titarev, Vladimir A.
core   +1 more source

Second-order moment of kinetic theory of granular flow for multi-type particles [PDF]

open access: yes, 2023
In this study, a numerical method, second-order moment of kinetic theory of granular flow for multitype particles (SOM-KTGF-MP) is proposed. The SOM-KTGF is used for particle flow with higher concentration and high inertia where inter-particle collisions
Dan, Sun
core   +1 more source

Chiral Kinetic Theory

open access: yesPhysical Review Letters, 2012
4 ...
Stephanov, M. A., Yin, Y.
openaire   +4 more sources

Gravitational Contribution to the Heat Flux in a Simple Dilute Fluid: An Approach Based on General Relativistic Kinetic Theory to First Order in the Gradients

open access: yesEntropy, 2017
Richard C. Tolman analyzed the relation between a temperature gradient and a gravitational field in an equilibrium situation. In 2012, Tolman’s law was generalized to a non-equilibrium situation for a simple dilute relativistic fluid.
Dominique Brun-Battistini   +2 more
doaj   +1 more source

Generalized phase-space kinetic and diffusion equations for classical and dispersive transport

open access: yesNew Journal of Physics, 2014
We formulate and solve a physically-based, phase space kinetic equation for transport in the presence of trapping. Trapping is incorporated through a waiting time distribution function.
Bronson Philippa, R E Robson, R D White
doaj   +1 more source

Deriving improved plasma fluid equations from collisional kinetic theory

open access: yesFrontiers in Astronomy and Space Sciences
IntroductionDeveloping a quantitative understanding of wave plasma processes in the lower ionosphere requires a reasonably accurate theoretical description of the underlying physical processes.
Y. S. Dimant
doaj   +1 more source

On the Geometrical Gyro-Kinetic theory

open access: yesKinetic & Related Models, 2014
Considering a Hamiltonian Dynamical System describing the motion of charged particle in a Tokamak or a Stellarator, we build a change of coordinates to reduce its dimension. This change of coordinates is in fact an intricate succession of mappings that are built using Hyperbolic Partial Differential Equations, Differential Geometry, Hamiltonian ...
Frénod, Emmanuel, Lutz, Mathieu
openaire   +5 more sources

Density Functional Kinetic Theory for Soft Matter

open access: yes, 2023
In the last decades kinetic theory has developed into a very elegant and effective framework to handle a broad spectrum of problems involving complex states of flowing matter, far beyond the original realm of rarefied gas dynamics.
Succi Sauro   +5 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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