Results 51 to 60 of about 2,171,046 (195)

Classical models of subatomic particles [PDF]

open access: yesPhysics Letters A, 1993
We look at the program of modelling a subatomic particle---one having mass, charge, and angular momentum---as an interior solution joined to a classical general-relativistic Kerr-Newman exterior spacetime. We find that the assumption of stationarity upon which the validity of the Kerr-Newman exterior solution depends is in fact violated quantum ...
Mann, R. B., Morris, M. S.
openaire   +2 more sources

Numerical Modeling of Reinforcement Solutions in Traditional Stone Masonry Using a Particle Model

open access: yesBuildings
Traditional stone masonry walls are structural elements in most historic buildings. To preserve them and improve their ability to withstand extreme events, such as earthquakes, it is necessary to implement effective reinforcement solutions.
Nuno Monteiro Azevedo   +3 more
doaj   +1 more source

Particle production beyond the thermal model

open access: yesEPJ Web of Conferences, 2016
The sources of particle production in relativistic heavy-ion collisions are investigated from RHIC to LHC energies. Whereas charged-hadron production in the fragmentation sources follows a ln(sNN/s0) law, particle production in the mid-rapidity low-x ...
Wolschin Georg
doaj   +1 more source

The Development of Theoretical Basis of Mathematical Model of Crushed Rock Particle-Particle Packing [PDF]

open access: yesE3S Web of Conferences, 2019
The existing mathematical models that predict the poly-fractional granular media packing density do not take into account their packing degree, which gives a fairly large deviation of the simulation results from the actual experimental values (up to 20 ...
Shabaev Sergey   +2 more
doaj   +1 more source

Two-Particle Dispersion in Model Velocity Fields

open access: yes, 1999
We consider two-particle dispersion in a velocity field, where the relative two-point velocity scales according to $v^{2}(r)\propto r^{\alpha}$ and the corresponding correlation time scales as $\tau (r)\propto r^{\beta}$, and fix $\alpha =2/3$, as ...
Sokolov, I. M.
core   +1 more source

Pseudoclassical model for Weyl particle in 10 dimensions [PDF]

open access: yes, 1995
A pseudoclassical model to describe Weyl particle in 10 dimensions is proposed. In course of quantization both the massless Dirac equation and the Weyl condition are reproduced automatically.
Gitman, D. M., Gonçalves, A. E.
core   +2 more sources

Particle Simulation Model for Self-Field Magnetoplasmadynamic Thruster

open access: yesEnergies, 2019
In order to clarify the discharge principle of the self-field magnetoplasmadynamic thruster (MPDT), a two-dimensional axisymmetric particle-in-cell/Monte Carlo collision (PIC/MCC) model is proposed.
Jian Li   +4 more
doaj   +1 more source

Particle Propagator of Spin Calogero-Sutherland Model

open access: yes, 2014
Explicit-exact expressions for the particle propagator of the spin 1/2 Calogero-Sutherland model are derived for the system of a finite number of particles and for that in the thermodynamic limit.
Bernard D   +8 more
core   +1 more source

A mechanistic particle flux model applied to the oceanic phosphorus cycle [PDF]

open access: yesBiogeosciences, 2014
The sinking and decomposition of particulate organic matter are critical processes in the ocean's biological pump, but are poorly understood and crudely represented in biogeochemical models.
T. DeVries, J.-H. Liang, C. Deutsch
doaj   +1 more source

Particle behavior simulation considering thermophoretic and drag forces by direct simulation Monte Carlo method

open access: yesJournal of Fluid Science and Technology, 2016
A micro size particle behavior considering thermophoretic and drag forces are simulated by using direct simulation Monte Carlo (DSMC) method. The computation time is too high to compute the micro particle movement by conventional DSMC method because the ...
Takao WADA
doaj   +1 more source

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