Results 81 to 90 of about 160,937 (210)

A numerical solution for nonlinear heat transfer of fin problems using the Haar wavelet quasilinearization method

Results in Physics, 2019
The aim of this paper is to study the new application of Haar wavelet quasilinearization method (HWQM) to solve one-dimensional nonlinear heat transfer of fin problems.
Suazlan Mt Aznam, Nor Artisham Che Ghani, M.S.H. Chowdhury   +2 more
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Generalized Haar wavelet operational matrix method for solving hyperbolic heat conduction in thin surface layers

Results in Physics, 2018
It is remarkably known that one of the difficulties encountered in a numerical method for hyperbolic heat conduction equation is the numerical oscillation within the vicinity of jump discontinuities at the wave front.
Suazlan Mt Aznam, M.S.H. Chowdhury
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Free vibration analysis of truncated circular conical shells with variable thickness using the Haar wavelet method

, 2016
This paper investigates the free vibration characteristics of truncated conical shells with variable thickness using the Haar wavelet method. Based on the Love first-approximation theory, the governing partial differential equations are formulated, which
Qiyi Dai, Q. Cao, Yushu Chen
semanticscholar   +1 more source

Comparative Study of Image Denoising Using Wavelet Transforms and Optimal Threshold and Neighbouring Window

مجلة كلية التربية للبنات, 2019
NeighShrink is an efficient image denoising algorithm based on the discrete wavelet transform (DWT). Its disadvantage is to use a suboptimal universal threshold and identical neighbouring window size in all wavelet subbands.
ايمان محمد جعفر علوان
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Image Compression using Haar and Modified Haar Wavelet Transform

Tikrit Journal of Engineering Sciences, 2013
Efficient image compression approaches can provide the best solutions to the recent growth of the data intensive and multimedia based applications. As presented in many papers the Haar matrix–based methods and wavelet analysis can be used in various ...
Mohannad Abid Shehab Ahmed, Haithem Taha, Musab Tahseen Salah Aldeen   +2 more
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Optimizing pantograph fractional differential equations: A Haar wavelet operational matrix method

Partial Differential Equations in Applied Mathematics
In this study, we developed an operational matrix method of integration using Haar wavelets to solve both linear and nonlinear pantograph fractional differential equations by taking Atangana's beta derivative.
Najeeb Alam Khan, Mumtaz Ali, Asmat Ara, M. Ijaz Khan, Sayfutdinovna Abdullaeva, M. Waqas   +5 more
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Two reliable approaches involving Haar wavelet method and Optimal Homotopy Asymptotic method for the solution of fractional Fisher type equation

, 2015
In this article, two reliable techniques, Haar wavelet method and optimal homotopy asymptotic method (OHAM) are presented. Haar wavelet method is an efficient numerical method for the numerical solution of fractional order partial differential equation ...
S. Ray
semanticscholar   +1 more source

Circuit Simulation of Any Time-Domain Source on Fractional-Order Impedances by Use of the Haar Wavelet Transform, Case Study of the Skin Effect

IEEE Open Journal of Circuits and Systems
An application of the ability of the Haar wavelet operational matrix to perform the numerical inverse Laplace transform as combined with the intrinsically convenient Haar wavelet transform of any time-domain signal is presented in this paper.
Georgios G. Roumeliotis, Jan Desmet, Jos Knockaert   +2 more
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An Efficient Approach for Mixed Neutral Delay Differential Equations

Computation
In this paper, neutral delay differential equations, which contain constant and proportional terms, termed mixed neutral delay differential equations, are solved numerically.
Rupal Aggarwal, Giriraj Methi, Ravi P. Agarwal, Basharat Hussain   +3 more
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Haar Wavelet Method for Series Expansion of Fractional Wiener Integral

پژوهش‌های ریاضی, 2019
Introduction The stochastic calculus plays an important role in the study of stochastic integral equations and stochastic differential equations. The fractional Brownian motion has many applications in different branches of sciences such as economics ...
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