Results 11 to 20 of about 1,331,618 (275)

The anisotropic approximations of the Henyey-Greenstein phase function for neutron transport equation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2014
The effect of anisotropic scattering on the eigenvalues of a multiplying (c >1) and non-multi-plying (c < 1) slab in one-speed neutron transport equation is studied.
Kacira Kadir, Bilgic Huseyin, Yasa Faruk
doaj   +1 more source

Mathematical model of matter transfer in a helical magnetic field using boundary conditions at infinity

open access: yesСовременная математика: Фундаментальные направления, 2023
The paper presents a mathematical model of plasma transfer in an open magnetic trap using the condition of zero plasma concentration at infinity. New experimental data obtained at the SMOLA trap at the Budker Institute of Nuclear Physics SB RAS were used.
G. G. Lazareva   +2 more
doaj   +1 more source

Solute Transport Control at Channel Junctions Using Adjoint Sensitivity

open access: yesMathematics, 2021
Water quality control and the control of contaminant spill in water in particular are becoming a primary need today. Gradient descent sensitivity methods based on the adjoint formulation have proved to be encouraging techniques in this context for river ...
Geovanny Gordillo   +2 more
doaj   +1 more source

Test particle description of transport processes for states with a continuous mass spectrum [PDF]

open access: yes, 1999
Aiming at a description of transport processes where the dynamically generated width of the states is potentially large a transport equation beyond the quasiparticle approximation is derived in first order gradient expansion. An effective particle number
Leupold, Stefan
core   +2 more sources

Radiative transfer of acoustic waves in continuous complex media: Beyond the Helmholtz equation [PDF]

open access: yes, 2016
Heterogeneity can be accounted for by a random potential in the wave equation. For acoustic waves in a fluid with fluctuations of both density and compressibility (as well as for electromagnetic waves in a medium with fluctuation of both permittivity and
Baresch, Diego   +3 more
core   +1 more source

Rigid vorticity transport equation and its application to vortical structure evolution analysis in hydro-energy machinery

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Vortex is the dominant flow structure in hydro-energy machinery, and its swirling features are mainly determined by the rigid rotation part of vorticity.
Chaoyue Wang   +3 more
doaj   +1 more source

Quantum master equation scheme of time-dependent density functional theory to time-dependent transport in nano-electronic devices [PDF]

open access: yes, 2006
In this work a practical scheme is developed for the first-principles study of time-dependent quantum transport. The basic idea is to combine the transport master-equation with the well-known time-dependent density functional theory.
D. V. Averin   +8 more
core   +1 more source

Nonclassical Particle Transport in 1-D Random Periodic Media [PDF]

open access: yes, 2016
We investigate the accuracy of the recently proposed nonclassical transport equation. This equation contains an extra independent variable compared to the classical transport equation (the path-length $s$), and models particle transport taking place in ...
Krycki, Kai   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy