Results 61 to 70 of about 2,979 (136)
Global Validation of the Data‐Assimilative VERB‐3D Code for the Radiation Belts
Abstract Electrons within Earth's radiation belts exhibit large variability in space and time during geomagnetic storms, which could potentially damage satellites and harm astronauts in space. Physics‐based models describe the evolution of energetic electrons in the radiation belts, but they may suffer from uncertainties and errors, particularly in the
Marina García Peñaranda +12 more
wiley +1 more source
We introduce the range‐resident logistic model, an extension of the spatial logistic model that incorporates empirically supported range‐resident movement, showing that neglecting range residency can lead to under‐ or overestimating population carrying capacity.
Rafael Menezes +4 more
wiley +1 more source
The Fokker-Planck equation describing the transport of energetic particles interacting with turbulence is difficult to solve analytically. Numerical solutions are of course possible but they are not always useful for applications.
B. Klippenstein, A. Shalchi
doaj +1 more source
Numerous evolution equations with nonlocal convolution-type interactions have been proposed. In some cases, a convolution was imposed as the velocity in the advection term.
Hideki Murakawa, Yoshitaro Tanaka
doaj +1 more source
Abstract Many numerical models have been built to uncover the physical mechanisms governing radiation belt dynamics and enable real‐time forecasting. The diffusion coefficient, as a critical input for these models, is usually obtained through linear interpolation from precomputed diffusion coefficient libraries.
Jianhang Wang +7 more
wiley +1 more source
Generalized Fokker-Planck Equation for the Modified Landau-Lifshitz Equation with Poisson White Noise [PDF]
Using the modified stochastic Landau-Lifshitz equation driven by Poisson white noise, we derive the generalized Fokker-Planck equation for the probability density function of the nanoparticle magnetic moment.
S.I. Denisov, O.O. Bondar
doaj
Quantum transport equations for Bose systems taking into account nonlinear hydrodynamic processes
sing the method of nonequilibrium statistical operator by Zubarev, an approach is proposed for the description of kinetics which takes into account the nonlinear hydrodynamic fluctuations for a quantum Bose system. Non-equilibrium statistical operator is
P.A. Hlushak, M.V. Tokarchuk
doaj +1 more source
Objectives. The study aims to theoretically derive the power law observed in practice for the distribution of characteristics of sociodynamic processes from the stationary Fokker–Planck equation and apply the non-stationary Fokker–Planck equation to ...
J. P. Perova, S. A. Lesko, A. A. Ivanov
doaj +1 more source
Brownian motion of grains and negative friction in dusty plasmas
Within the approximation of dominant charging collisions the explicit microscopic calculations of the Fokker-Planck kinetic coefficients for highly-charged grains moving in plasma are performed.
S.A.Trigger, A.G.Zagorodny
doaj +1 more source
Numerical Solution of Fokker-Planck-Kolmogorov Time Fractional Differential Equations Using Legendre Wavelet Method Along with convergence and error analysis [PDF]
The purpose of this paper is to present an efficient numerical method for finding numerical solutions Fokker-Planck-Kolmogorov time-fractional differential equations.The Legendre wavelet approach was employed for this objective. The Legendre wave was the
شعبان محمدی +1 more
doaj +1 more source

