Results 71 to 80 of about 11,152,508 (166)

Wavelet Multiresolution Analysis of High-Frequency FX Rates, Summer 1997 [PDF]

FX pricing processes are nonstationary and their frequency characteristics are time-dependent. Most do not conform to geometric Brownian motion, since they exhibit a scaling law with a Hurst exponent between zero and 0.5 and fractal dimensions between 1 ...
Jeyanthi Karuppiah, Cornelis A. Los
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Combined application of continuous wavelet transform-zero crossing technique in the simultaneous spectrophotometric determination of perindopril and indapamid in tablets

Química Nova, 2009
Signal processing methods based on the combined use of the continuous wavelet transform (CWT) and zero-crossing technique were applied to the simultaneous spectrophotometric determination of perindopril (PER) and indapamide (IND) in tablets. These signal
Gözde Pektaş, Erdal Dinç, Dumitru Baleanu   +2 more
doaj   +1 more source

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
doaj   +1 more source

Haar Wavelet Method for Solving Fitz Hugh-Nagumo Equation

, 2010
In this paper, we develop an accurate and efficient Haar wavelet method for well-known FitzHugh-Nagumo equation. The proposed scheme can be used to a wide class of nonlinear reaction-diffusion equations.
G.Hariharan, K.Kannan
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IDENTIFIKASI IRIS MATA MENGGUNAKAN ALIHRAGAM WAVELET HAAR [PDF]

, 2011
Human iris has a very unique pattern which is different for each person so it is possible to use it as a basic of biometric recognition. To identify texture in an image, texture analysis method can be used.
Isnanto, R.Rizal, Prihartono, Teguh Dwi, SANTOSO, IMAM   +2 more
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The Wavelet-based Estimation for Long Memory Signal Plus Noise Models [PDF]

We propose new wavelet-based procedure to estimate the memory parameter of an unobserved process from an observed process affected by noise in order to improve the performance of the estimator by taking into account the dependency of the wavelet ...
Kei Nanamiya
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An operational Haar wavelet method for solving fractional Volterra integral equations

, 2011
An operational Haar wavelet method for solving fractional Volterra integral equationsA Haar wavelet operational matrix is applied to fractional integration, which has not been undertaken before. The Haar wavelet approximating method is used to reduce the
Mahmoud Moghadam, Gennady Chuev, Habibollah Saeedi, Nasibeh Mollahasani   +3 more
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The Haar wavelet characterization of weighted Herz spaces and greediness of the Haar wavelet basis [PDF]

, 2010
In this paper we consider the Haar wavelet on weighted Herz spaces. Our weight class, whose name is Ap-dyadic local, is the one defined by the first author (2007).
Sawano, Yoshihiro, Izuki, Mitsuo
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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
doaj  

Detecção e análise de eventos de ilhamento utilizando dados fasoriais sincronizados e a transformada Wavelet discreta [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013.Este trabalho propõe uma metodologia para a detecção e análise de eventos de ilhamento do Sistema ...
Brustolin, Geyson
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