Results 31 to 40 of about 15,025 (256)

Precise two-dimensional D-bar reconstructions of human chest and phantom tank via sinc-convolution algorithm

open access: yesBioMedical Engineering OnLine, 2012
Background Electrical Impedance Tomography (EIT) is used as a fast clinical imaging technique for monitoring the health of the human organs such as lungs, heart, brain and breast.
Abbasi Mahdi, Naghsh-Nilchi Ahmad-Reza
doaj   +1 more source

Using SincNet for Learning Pathological Voice Disorders

open access: yesSensors, 2022
Deep learning techniques such as convolutional neural networks (CNN) have been successfully applied to identify pathological voices. However, the major disadvantage of using these advanced models is the lack of interpretability in explaining the ...
Chao-Hsiang Hung   +3 more
doaj   +1 more source

A Hermite-Gauss method for the approximation of eigenvalues of regular Sturm-Liouville problems

open access: yesJournal of Inequalities and Applications, 2016
Recently, some authors have used the sinc-Gaussian sampling technique to approximate eigenvalues of boundary value problems rather than the classical sinc technique because the sinc-Gaussian technique has a convergence rate of the exponential order, O ...
Rashad M Asharabi
doaj   +1 more source

A sinc-collocation method for initial value problems [PDF]

open access: yesMathematics of Computation, 1997
Summary: A collocation procedure is developed for the initial value problem \(u'(t) = f(t,u(t))\), \(u(0) = 0\), using the globally defined sinc basis functions. It is shown that this sinc procedure converges to the solution at an exponential rate, i.e., \( \mathcal{ O} (M^{2} \exp(-\kappa \sqrt{M}))\) where \(\kappa > 0\) and \(2M\) basis functions ...
Timothy S. Carlson   +2 more
openaire   +1 more source

Parallel-in-time preconditioners for the Sinc-Nyström method

open access: yesCoRR, 2021
23 pages, significantly revised from the first ...
Jun Liu 0025, Shu-Lin Wu
openaire   +2 more sources

Solving Boundary Value Problems by Sinc Method and Geometric Sinc Method

open access: yesSymmetry
This paper introduces an efficient numerical method for approximating solutions to geometric boundary value problems. We propose the multiplicative sinc–Galerkin method, tailored specifically for solving multiplicative differential equations. The method utilizes the geometric Whittaker cardinal function to approximate functions and their geometric ...
Amer Darweesh   +2 more
openaire   +1 more source

A collocation method for solving boundary value problems of fractional order

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this paper, the sinc collocation method is used to obtain the solution of the second-order fractional boundary value problems based on the conformable fractional derivative. For this purpose a theorem is proved to represent the terms having fractional
Sertan Alkan, Aydin Seçer
doaj   +1 more source

Some New Results of Mitrinović–Cusa’s and Related Inequalities Based on the Interpolation and Approximation Method

open access: yesJournal of Mathematics, 2021
In this paper, new refinements and improvements of Mitrinović–Cusa’s and related inequalities are presented. First, we give new polynomial bounds for sinc(x) and cos(x) functions using the interpolation and approximation method.
Lina Zhang, Xuesi Ma
doaj   +1 more source

An h-Adaptive Poly-Sinc-Based Local Discontinuous Galerkin Method for Elliptic Partial Differential Equations

open access: yesAxioms, 2023
For the purpose of solving elliptic partial differential equations, we suggest a new approach using an h-adaptive local discontinuous Galerkin approximation based on Sinc points.
Omar A. Khalil, Gerd Baumann
doaj   +1 more source

Summary of sinc numerical methods

open access: yesJournal of Computational and Applied Mathematics, 2000
This article attempts to summarize the existing numerical methods based on Sinc approximation. Starting with a comparison of polynomial and Sinc approximation, basic formulas for the latter in the one-dimensional case are given. The author also covers the following: (i) Explicit spaces of analytic functions for one dimensional Sinc approximation, (ii ...
openaire   +2 more sources

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