Results 31 to 40 of about 1,364,813 (176)
Fast computation of the nonlocal boundary condition in finite difference parabolic equation radiowave propagation simulations [PDF]
, 2008 Finite difference parabolic equation method (FD-PEM) codes using a nonlocal boundary condition to model radiowave propagation over electrically large domains, require the computation of time consuming spatial convolution integrals. For the first time, we
Mias, Christos
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Advances in Nonlinear Analysis, 2022 This article focuses on the singularity formation of smooth solutions for a one-dimensional nonlinear degenerate hyperbolic-parabolic coupled system originating from the Poiseuille flow of nematic liquid crystals.
Hu Yanbo
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Advanced Science, EarlyView.The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang +6 more
wiley +1 more source
Comparison of hyperbolic and parabolic equations modelling buoyancy driven flow in a square cavity
Partial Differential Equations in Applied MathematicsThe effects of a hyperbolic and parabolic heat transfer equation on buoyancy-driven flow in a square cavity are studied. Boundary conditions where the bottom wall is hot and the side and top walls are cold are investigated.
E. Momoniat, R.S. Herbst, C. Harley
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Tricomi problem analogue for loaded equation of hyperbolic-parabolic type with variable coefficients
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007 An analogue of Tricomi problem for loaded equation of hyperbolic-parabolic type with variable coefficients is researched. The theorem on existence and uniqueness of solution is proved for special conditions on the coefficients.
K. U. Khubiev
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
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Deterministic and Stochastic Dynamics in Spinodal Decomposition of a Binary System
Успехи физики металлов, 2009 A model for diffusion and phase separation, which takes into account hyperbolic relaxation of the solute diffusion flux, is developed. Such a ‘hyperbolic model’ provides analysis of ‘hyperbolic evolution’ of patterns in spinodal decomposition in systems ...
D. O. Kharchenko, P. K. Galenko, V. G. Lebedev
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Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers
The Canadian Journal of Chemical Engineering, EarlyView.This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger +7 more
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ON A BOUNDARY-VALUE PROBLEM FOR THE THIRD ORDER OF A PARABOLO-HYPERBOLIC TYPE IN A VAGINATED SIXTY-DIMENSIONAL REGION [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016 In the study of problems of mathematical physics, the methods of differential and integral equations are used. This paper is an example of the application of these methods to the solution of a single boundary-value problem for a third-order parabolic ...
Mamazhonov M., Shermatova Kh. M.
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Anatomy of a SPAN Particle: A Four‐Level Structural Framework for Lithium–Sulfur Batteries
EcoEnergy, EarlyView.Sulfurized polyacrylonitrile (SPAN) is a key cathode material for batteries. Borrowing the four‐level classification of protein structure, this perspective demonstrates SPAN's structural complexity into well‐defined levels, giving researchers clear research boundaries and targets at each level for improving battery performance.
Jinkwan Jung +5 more
wiley +1 more source