Results 11 to 20 of about 1,134,345 (204)

Evaluation of radiation heat transfer in porous medial: Application for a pebble bed modular reactor cooled by CO2 gas [PDF]

open access: yesNuclear Technology and Radiation Protection, 2013
This work analyses the contribution of radiation heat transfer in the cooling of a pebble bed modular reactor. The mathematical model, developed for a porous medium, is based on a set of equations applied to an annular geometry.
Sidi-Ali Kamel   +4 more
doaj   +1 more source

On the Transfer of Information in Multiplier Equations

open access: yes, 2023
We derive spectral width estimates for traces of tempered solutions of a large class of multiplier equations in $\mathbf{R}^n$. The estimates are uniform for solutions up to a given order. In the process, we find a rather explicit expression for a tempered fundamental solution of a multiplier. We successfully verify our spectral width estimates against
Karamehmedović, Mirza; id_orcid 0000-0003-0038-9020   +1 more
openaire   +2 more sources

A high accurate scheme for numerical simulation of two-dimensional mass transfer processes in food engineering

open access: yesAlexandria Engineering Journal, 2021
This paper contributes to develop a highly accurate numerical method for solving two-dimensional mass transfer equations during convective air drying of apple slices.
Yin Yang   +4 more
doaj   +1 more source

Correction Factors for Determining the Mass Transfer Coefficients

open access: yesJournal of Mechanical Engineering, 2021
A number of industrial operations are linked to mass transfer. The mass transfer coefficient value is necessary to know when designing the industrial equipment in which mass transfer occurs.
Štefan Gužela, František Dzianik
doaj   +1 more source

Influence of chemical reaction on MHD Newtonian fluid flow on vertical plate in porous medium in conjunction with thermal radiation

open access: yesOpen Physics, 2022
Our key objective in the present work is to elaborate the concept of activation energy in chemically reactive flow with the help of modeling and computation. The model investigated is fluid flow over a vertical cylinder in the porous medium with chemical
Zhang Juan   +9 more
doaj   +1 more source

Lie symmetry and exact homotopic solutions of a non-linear double-diffusion problem

open access: yesFrontiers in Physics, 2023
The Lie symmetry method is applied, and exact homotopic solutions of a non-linear double-diffusion problem are obtained. Additionally, we derived Lie point symmetries and corresponding transformations for equations representing heat and mass transfer in ...
R. A. Khan   +5 more
doaj   +1 more source

The radiative transfer equations for Compton scattering of polarized low frequency radiation on a hot electron gas [PDF]

open access: yes, 1999
We deduce the equations that describe how polarized radiation is Comptonized by a hot electron gas. Low frequencies are considered, and the equations are expanded to second order in electron velocities.
Hansen, Frode K., Lilje, Per B.
core   +2 more sources

Elliptic solution for modified tetrahedron equations [PDF]

open access: yes, 1993
As is known, tetrahedron equations lead to the commuting family of transfer-matrices and provide the integrability of corresponding three-dimensional lattice models.
Mangazeev, V. V., Stroganov, Yu. G.
core   +2 more sources

ON THE EQUIVALENCE OF DELAYED ARGUMENTS AND TRANSFER EQUATIONS FOR MODELING DYNAMIC SYSTEMS

open access: yesВавиловский журнал генетики и селекции, 2018
Development and improvement of mathematical methods used in modeling biological systems represents a topical issue of mathematical biology. In this paper, we considered a general form of a system of first-order delayed differential equations ...
V. A. Likhoshvai, T. M. Khlebodarova
doaj   +1 more source

Interaction-Round-a-Face Models with Fixed Boundary Conditions: The ABF Fusion Hierarchy [PDF]

open access: yes, 1995
We use boundary weights and reflection equations to obtain families of commuting double-row transfer matrices for interaction-round-a-face models with fixed boundary conditions.
Behrend, Roger E.   +2 more
core   +2 more sources

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