Results 71 to 80 of about 465 (189)

One dimensional phononic FDTD algorithm and transfer matrix method implementation for Severin aperiodic multilayer

, 2017
In this paper, the power spectrum and phononic properties of the quasi onedimensional Severin aperiodic multilayer was investigated. Multilayer phononic structures with their phononic band gap properties can be used as filters of mechanical waves. In the
S. Garus, W. Sochacki
semanticscholar   +1 more source

Error Analysis of Numerical Schemes for the Wave Equation in Heterogeneous Media

, 1993
A family of finite difference schemes for the acoustic wave equation in heterogeneous media is introduced. The precision and computational cost are analyzed in two cases. First, a two layered medium is considered.
William Symes, Alain Sei, W. W Symes
core   +1 more source

Uniformly convergent extended cubic B-spline collocation method for two parameters singularly perturbed time-delayed convection-diffusion problems. [PDF]

BMC Res Notes, 2023
Negero NT.
europepmc   +1 more source

Analysis of iterative methods for solving a Ginzburg-Landau equation

, 2005
. Very recently we have proposed to use a complex Ginzburg-Landau equation for high contrast inpainting, to restore higher dimensional (volumetric) data (which has applications in frame interpolation), improving sparsely sampled data and to fill in ...
Alfio Borzi, Harald Grossauer, Otmar Scherzer   +2 more
core  

Uniform difference method for singularly pertubated delay Sobolev problems

, 2021
In this paper, a numerical study is made of an initial-boundary value problem for a singularly perturbed delay Sobolev equations (SPDSEs). Here we propose an exponentially fitted method based on finite differences to solve an SPDSE.
Durus, Hakki, Chiyanesh, Akbar Barati
core  

‘The Equator–Pole grid system’: an overset grid system for the sphere, with an optimal uniformity property

Tellus: Series A, Dynamic Meteorology and Oceanography, 2018
This article proposes a new grid system for the sphere, which consists of three orthogonal and almost uniform grids. The basic one is a latitude-longitude grid covering an annular band around the equator.
Göran Starius
doaj   +1 more source

High Order Parallel Iterative Method for Diffusion Equations

, 2009
In this paper, we consider the initial boundary value problems of 1D diffusion equations. Based on a high order absolutely stable implicit scheme, we first construct two saul'yev asymmetry iterative schemes, and then present a class of parallel ...
Bin Zheng
core  

The Effect of On-Site Potentials on Supratransmission in One-Dimensional Hamiltonian Lattices. [PDF]

Entropy (Basel), 2023
Bountis T, Macías-Díaz JE.
europepmc   +1 more source

Nonlinear dynamics of a fuel-price-sensitive traffic flow model with economic and behavioural adaptations

Partial Differential Equations in Applied Mathematics
This paper presents a new macroscopic traffic flow model formulated as a system of nonlinear partial differential equations that incorporates fuel-price sensitivity and behavioural adaptation of drivers.
Gabriel Obed Fosu, Fredrick Asenso Wireko, Emmanuel Akweittey   +2 more
doaj   +1 more source

Numerical modeling for the recovery of fine structures in PDE-based image denoising,” (submitted to Image and Vision Computing

, 2008
PDE-based image denoising processes often lead to significant loss of fine structures such as edges and textures. This article is concerned with numerical modeling for PDE-based denoising models that can preserve/recover fine structures in the restored ...
Seongjai Kim
core