Results 21 to 30 of about 99,796 (273)

Hybrid of differential quadrature and sub-gradients methods for solving the system of Eikonal equations

open access: yesNonlinear Engineering, 2021
Many important natural phenomena of wave propagations are modeled by Eikonal equations and a variety of new methods are needed to solve them. The differential quadrature method (DQM) is an effective numerical method for solving the system of differential
Meher Mehrollah, Rostamy Davood
doaj   +1 more source

An efficient numerical scheme for fractional model of telegraph equation

open access: yesAlexandria Engineering Journal, 2022
The present attempt is to design a novel approach for the numerical solution of fractional telegraph equation. The novelty of the paper exist in solving the time fractional telegraph equation with differential quadrature method based on cubic B-spline ...
M.S. Hashmi   +3 more
doaj   +1 more source

A Note on the DQ Analysis of Anisotropic Plates

open access: yes, 2002
Recently, Bert, Wang and Striz [1, 2] applied the differential quadrature (DQ) and harmonic differential quadrature (HDQ) methods to analyze static and dynamic behaviors of anisotropic plates.
Chen, W, He, Weixing, Zhong, Tingxiu
core   +1 more source

One-step block method for solving Volterra integro-differential equations [PDF]

open access: yes, 2014
One-step block method for solving linear Volterra integro-differential equations (VIDEs) is presented in this paper. In VIDEs, the unknown function appears in the form of derivative and under the integral sign.
Abdul Majid, Zanariah   +1 more
core   +1 more source

Squeezing spectra of the output field by high density exciton laser

open access: yes, 1999
The effect of the non-linear interaction between the high density Wannier excitons is analysed. We use the Fokker-Planck equation in the positive P presentation and the corresponding stochastic differential equation to study the composite system of a ...
Agranorich   +20 more
core   +1 more source

Fast and oblivious convolution quadrature [PDF]

open access: yes, 2005
We give an algorithm to compute $N$ steps of a convolution quadrature approximation to a continuous temporal convolution using only $O(N \log N)$ multiplications and $O(\log N)$ active memory.
Lubich, Christian   +2 more
core   +3 more sources

Differential quadrature element analysis using extended differential quadrature

open access: yesComputers & Mathematics with Applications, 2000
In the extended differential quadrature, a (partial) derivative of a function at a point is expressed by a weighted sum of the values of the function and/or its derivatives at all grid points. Several sample problems with 1, 2, and 3 coordinates are sketched. Numerical results are presented too.
openaire   +2 more sources

Differential quadrature and splines

open access: yesComputers & Mathematics with Applications, 1975
can be determinedusing interpolating polynomials. Although integral quadratures with a variety of interpolatingpolynomials are fully developed, the differential quadratures are still in an early stage ofdevelopment. Differentialquadrature hasobviousapplicationsinthe numericalsolutionof partialdifferential equations.
Bellman, R.   +3 more
openaire   +1 more source

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

open access: yesAdvanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph   +11 more
wiley   +1 more source

Variable order integrators for the numerical solution of ordinary differential equations [PDF]

open access: yes, 1971
Series of computer subroutines integrates systems of ordinary differential equations and is used for numerical ...
Krogh, F. T.
core   +1 more source

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