Results 11 to 20 of about 82,974,090 (300)

A comparative study of immersed-boundary interpolation methods for a flow around a stationary cylinder at low Reynolds number [PDF]

open access: yes, 2013
The accuracy and computational efficiency of various interpolation methods for the implementation of non grid-confirming boundaries is assessed. The aim of the research is to select an interpolation method that is both efficient and sufficiently accurate
Wissink, J, Bahai, H, Madani, SH
core   +6 more sources

Watermarking for multimedia security using complex wavelets [PDF]

open access: yes, 2010
This paper investigates the application of complex wavelet transforms to the field of digital data hiding. Complex wavelets offer improved directional selectivity and shift invariance over their discretely sampled counterparts allowing for better ...
Bouridane, A.   +10 more
core   +1 more source

Using of PQWs for solving NFID in the complex plane

open access: yesAdvances in Difference Equations, 2020
We approximate the solution of the nonlinear Fredholm integro-differential equation (NFID) in the complex plane by periodic quasi-wavelets (PQWs). This kind of wavelets possesses orthonormality properties, the numbers of terms in the decomposition and ...
M. Erfanian   +2 more
doaj   +1 more source

Taylor wavelet collocation method for Benjamin–Bona–Mahony partial differential equations

open access: yesResults in Applied Mathematics, 2021
In this paper, we have developed a computational method for solving Benjamin–Bona–Mahony (BBM) partial differential equations which is based on the Taylor wavelets with the collocation technique.
S.C. Shiralashetti, S.I. Hanaji
doaj   +1 more source

Wavelet Method for Numerical Solution of Parabolic Equations [PDF]

open access: yesJournal of Computational Engineering, 2014
We derive a highly accurate numerical method for the solution of parabolic partial differential equations in one space dimension using semidiscrete approximations. The space direction is discretized by wavelet-Galerkin method using some special types of basis functions obtained by integrating Daubechies functions which are compactly supported and ...
openaire   +1 more source

Numerical quadrature methods for singular and nearly singular integrals [PDF]

open access: yes, 2001
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is concerned with the development, design, and analysis of simple and efficient numerical quadrature methods for integrals on finite intervals ...
Chunrungsikul, Sumlearng
core   +7 more sources

Wavelet Collocation Method for Solving Multiorder Fractional Differential Equations

open access: yesJournal of Applied Mathematics, 2012
The operational matrices of fractional-order integration for the Legendre and Chebyshev wavelets are derived. Block pulse functions and collocation method are employed to derive a general procedure for forming these matrices for both the Legendre and the
M. H. Heydari   +3 more
doaj   +1 more source

Spreading behavior of biological SIR system of a COVID-19 disease through a fast Taylor wavelet based numerical algorithm

open access: yesResults in Control and Optimization, 2023
In this paper, we provide a unique, cost-effective numerical method for solving the SIR model of a COVID-19 disease using the method of Taylor wavelets and collocation technique.
Vivek, Manoj Kumar
doaj   +1 more source

On a new method for finding numerical solutions to integro-differential equations based on Legendre multi-wavelets collocation

open access: yesAlexandria Engineering Journal, 2022
In this article, a wavelet collocation method based on linear Legendre multi-wavelets is proposed for the numerical solution of the first as well as higher orders Fredholm, Volterra and Volterra–Fredholm integro-differential equations.
Imran Khan   +4 more
doaj   +1 more source

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

open access: yes, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
S. Grivet-talocia   +2 more
core   +1 more source

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