Results 1 to 10 of about 300,620 (314)

Mean-field and Monte Carlo analysis of multi-species agent dynamics

open access: yesFrontiers in Physics
We propose a mean-field (MF) approximation as a recurrence relation governing the dynamics of m species of particles on a square lattice. We simultaneously perform Monte Carlo (MC) simulations under identical initial conditions to emulate the intricate ...
Eduardo Velasco Stock   +2 more
doaj   +1 more source

Radial intensity gradients of galactic cosmic rays in the heliosphere at solar maximum: 1D no-shock simulation [PDF]

open access: yesGeofísica Internacional, 2009
We study the spatial distribution of galactic cosmic rays in the heliosphere at solar maximum of cycles 21, 22 and 23, using a one-dimensional no-shock model of the cosmic ray transport equation.
R. A. Caballero-Lopez   +1 more
doaj  

Boundary control for transport equations

open access: yesMathematical Control and Related Fields, 2023
This paper considers two types of boundary control problems for linear transport equations. The first one shows that transport solutions on a subdomain of a domain X can be controlled exactly from incoming boundary conditions for X under appropriate convexity assumptions.
Bal, Guillaume, Jollivet, Alexandre
openaire   +4 more sources

Transport equation driven by a stochastic measure

open access: yesModern Stochastics: Theory and Applications, 2023
The stochastic transport equation is considered where the randomness is given by a symmetric integral with respect to a stochastic measure. For a stochastic measure, only σ-additivity in probability and continuity of paths is assumed.
Vadym Radchenko
doaj   +1 more source

Blow-up criterion for the 2D Euler-Boussinesq system in terms of temperature

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the blow-up slutions for the 2D Euler-Boussinesq equation. In particular, it is shown that if $$ \int_0^{T^*} \sup_{r\geq 2}\frac{\|\Lambda^{1-\alpha} \theta(t)\|_{L^{r}}} {\sqrt{r\log r ...
Chenyin Qin
doaj  

Diffusion synthetic acceleration with the fine mesh rebalance of the subcell balance method with tetrahedral meshes for SN transport calculations

open access: yesNuclear Engineering and Technology, 2020
A diffusion synthetic acceleration (DSA) technique for the SN transport equation discretized with the linear discontinuous expansion method with subcell balance (LDEM-SCB) on unstructured tetrahedral meshes is presented.
Habib Muhammad, Ser Gi Hong
doaj   +1 more source

Adsorption Kinetics Model of Hydrogen on Graphite

open access: yesEntropy
A new kinetic equation for the adsorption and desorption of H2 on graphite is derived based on the adsorption and desorption equilibrium rates obtained from the molecular dynamics.
Jean-Marc Simon   +1 more
doaj   +1 more source

The eigenvalues of one-speed neutrons in a slab with forward and backward scattering

open access: yesTehnički Glasnik, 2019
The eigenvalue spectrum is studied for one-speed neutrons in a slab with forward and backward scattering. First, the transport equation describing the interaction of neutrons in a system with general geometry is given.
Ökkeş Ege, Hakan Öztürk
doaj   +1 more source

Scaling the Dynamic Buckling Behavior of a Box Girder Based on the Finite Similitude Approach

open access: yesJournal of Marine Science and Engineering
In the design of small-scale test models for hull structures, the directional dimensional analysis method is commonly employed. However, conventional dimensional analysis based on elasticity theory may be insufficient to capture the nonlinear behaviors ...
Chongxi Xu   +5 more
doaj   +1 more source

Numerical Approximation for Fractional Neutron Transport Equation

open access: yesJournal of Mathematics, 2021
Fractional neutron transport equation reflects the anomalous transport processes in nuclear reactor. In this paper, we will construct the fully discrete methods for this type of fractional equation with Riesz derivative, where the generalized WENO5 ...
Zhengang Zhao, Yunying Zheng
doaj   +1 more source

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