Results 21 to 30 of about 11,152,508 (166)

A Comparative Study using Scale-2 and Scale-3 Haar Wavelet for the Solution of Higher Order Differential Equation [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
A comparative study of scale-2 and scale-3 Haar wavelet has been presented to illustrate the level of accuracy attained by both the wavelets by applying on higher order differential equations known as Emden fowler equation, which has great importance in ...
Ratesh Kumar, Jaya Gupta
doaj   +1 more source

Feedback Control Method Using Haar Wavelet Operational Matrices for Solving Optimal Control Problems

open access: yesAbstract and Applied Analysis, 2013
Most of the direct methods solve optimal control problems with nonlinear programming solver. In this paper we propose a novel feedback control method for solving for solving affine control system, with quadratic cost functional, which makes use of only ...
Waleeda Swaidan, Amran Hussin
doaj   +1 more source

Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform

open access: yesIET Science, Measurement & Technology, 2022
Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady‐state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g.
Georgios G. Roumeliotis   +2 more
doaj   +1 more source

Approximations to linear Klein–Gordon Equations using Haar wavelet

open access: yesAin Shams Engineering Journal, 2021
In this research article, two Haar wavelet collocation methods (HWCMs) (namely one dimensional HWCM and two dimensional HWCM) are adapted to approximate linear homogeneous and linear non-homogeneous Klein–Gordon equations.
Sana Ikram   +2 more
doaj   +1 more source

Haar Wavelet Collocation Method for Thermal Analysis of Porous Fin with Temperature-dependent Thermal Conductivity and Internal Heat Generation [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2017
In this study, the thermal performance analysis of porous fin with temperature-dependent thermal conductivity and internal heat generation is carried out using Haar wavelet collocation method.
George OGUNTALA, Raed Abd-Alhameed
doaj   +1 more source

Comparison of KNN and SVM Algorithms in Facial Image Recognition Using Haar Wavelet Feature Extraction

open access: yesJurnal Riset Informatika, 2023
To process all the pixels in the face image, feature extraction can be performed using the Haar Wavelet method so that it processes identifiers with lower dimensions.
Neneng Rachmalia Feta
doaj   +1 more source

On the block wavelet transform applied to the boundary element method [PDF]

open access: yes, 2004
This paper follows an earlier work by Bucher et al. [1] on the application of wavelet transforms to the boundary element method, which shows how to reuse models stored in compressed form to solve new models with the same geometry but arbitrary load cases
Bucher, HF   +3 more
core   +1 more source

Multiresolution analysis using wavelet, ridgelet, and curvelet transforms for medical image segmentation [PDF]

open access: yes, 2011
Copyright @ 2011 Shadi AlZubi et al. This article has been made available through the Brunel Open Access Publishing Fund.The experimental study presented in this paper is aimed at the development of an automatic image segmentation system for classifying ...
Alzubi, S   +5 more
core   +1 more source

Semi-Supervised Dim and Small Infrared Ship Detection Network Based on Haar Wavelet

open access: yesIEEE Access, 2021
Traditional deep learning detection network has poor effect on the detection of infrared dim and small targets on the sea in the case of interference or bad weather.
Zizhuang Song   +4 more
doaj   +1 more source

Discrete differential operators in multidimensional Haar wavelet spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We consider a class of discrete differential operators acting on multidimensional Haar wavelet basis with the aim of finding wavelet approximate solutions of partial differential problems.
Carlo Cattani, Luis M. Sánchez Ruiz
doaj   +1 more source

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