Results 21 to 30 of about 6,054,073 (251)

Wavelet Operational Matrices and Lagrange Interpolation Differential Quadrature-Based Numerical Algorithms for Simulation of Nanofluid in Porous Channel

open access: yesJournal of Mathematics, 2022
This work analyses the features of nanofluid flow and thermal transmission (NFTT) in a rectangular channel which is asymmetric by developing two numerical algorithms based on scale-2 Haar wavelets (S2HWs), Lagrange’s interpolation differential quadrature
Aisha M. Alqahtani, Ram Jiwari
doaj   +1 more source

Constellation Shaped 3D HQAM-DPSK Modulation for Single Wavelength Multi-Dimensional Optical Transmission

open access: yesIEEE Access, 2023
A novel concept for single wavelength high spectral-efficient multi-dimensional optical transmission with geometric and probabilistic constellation shaping and bit mapping technique is presented in this study.
Jinwoo Park   +3 more
doaj   +1 more source

Quadrature decomposition of optical fields using two orthogonal phase sensitive amplifiers [PDF]

open access: yes, 2014
We propose a new technique to optically process coherent signals by simultaneously extracting their two (I and Q) quadrature components into two orthogonal polarizations at the same frequency.
Hesketh, G.   +4 more
core   +2 more sources

A study of quintic B-spline based differential quadrature method for a class of semi-linear Fisher-Kolmogorov equations

open access: yesAlexandria Engineering Journal, 2016
In the present manuscript, Fisher-Kolmogorov equation is solved numerically by adopting a differential quadrature technique that uses quintic B-spline as the basis functions for space integration.
R.C. Mittal, Sumita Dahiya
doaj   +1 more source

A collocation methods based on the quadratic quadrature technique for fractional differential equations

open access: yesAIMS Mathematics, 2021
<abstract><p>In this paper, we introduce a mixed numerical technique for solving fractional differential equations (FDEs) by combining Chebyshev collocation methods and a piecewise quadratic quadrature rule. For getting solutions at each integration step, the fractional integration is calculated in two intervals-all previous time intervals ...
openaire   +3 more sources

Planar quadrature RF transceiver design using common-mode differential-mode (CMDM) transmission line method for 7T MR imaging.

open access: yesPLoS ONE, 2013
The use of quadrature RF magnetic fields has been demonstrated to be an efficient method to reduce transmit power and to increase the signal-to-noise (SNR) in magnetic resonance (MR) imaging. The goal of this project was to develop a new method using the
Ye Li   +4 more
doaj   +1 more source

Computational Approach to Solving a Layered Behaviour Differential Equation with Large Delay Using Quadrature Scheme

open access: yesInternational Journal of Applied Mechanics and Engineering, 2022
This paper deals with the computational approach to solving the singularly perturbed differential equation with a large delay in the differentiated term using the two-point Gaussian quadrature.
Amala Pandi   +2 more
doaj   +1 more source

Analysis of Sandwich Plates by Generalized Differential Quadrature Method [PDF]

open access: yes, 2013
In this paper, we combine a layer-wise formulation and a generalized differential quadrature technique for predicting the static deformations and free vibration behaviour of sandwich plates. Through numerical experiments, the capability and efficiency of
TORNABENE, FRANCESCO   +9 more
core   +1 more source

Cubic spline based differential quadrature method: A numerical approach for fractional Burger equation

open access: yesResults in Physics, 2021
In this research paper, our main objective is to represent a direct numerical approach for solving time-fractional Burger’s equation using modified hybrid B-spline basis function. The Caputo derivative is used to discretize the time-fractional derivative
Muhammad Sadiq Hashmi   +4 more
doaj   +1 more source

Dynamic Analysis of Electrostatic Microactuators Using the Differential Quadrature Method [PDF]

open access: yes, 2011
This work studies the dynamic behavior of electrostatic actuators using finite-element package software (FEMLAB) and differential quadrature method. The differential quadrature technique is used to transform partial differential equations into a discrete
Ming-Hung Hsu
core   +1 more source

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