Results 111 to 120 of about 2,495,027 (403)

Spin weighted wavelets on the sphere [PDF]

open access: yesarXiv, 2018
In the present paper, a construction of spin weighted spherical wavelets is presented. It is based on approximate identities, the wavelets are defined for a continuous set of parameters, and the wavelet transform is invertible directly by an integral.
arxiv  

Enhanced Terahertz Spectroscopy of a Monolayer Transition Metal Dichalcogenide

open access: yesAdvanced Functional Materials, EarlyView.
An ad‐hoc engineered metallic surface is employed to perform enhanced terahertz spectroscopy of a monolayer transition metal dichalcogenide (TMD). Thanks to a local absorption boost of 104, this technique allows for the extraction of the phonon resonance features and effective permittivity of the 2D material, paving the way for the rational design of ...
Xin Jin   +11 more
wiley   +1 more source

Penentuan Notasi Gamelan Rindik Menggunakan Metode Transformasi Wavelet

open access: yesMajalah Ilmiah Teknologi Elektro, 2018
—This paper present about recognition of gamelan rindik pattern using wavelet transform. Wavelet transform is used to find the special characteristic of gamelan rindik, which had previously been recorded and stored in computer with format *.wav. The data
I Gusti Made Meri Utama Yasa   +2 more
doaj   +1 more source

Localization of the complex spectrum: the S transform

open access: yesIEEE Transactions on Signal Processing, 1996
The S transform, which is introduced in the present correspondence, is an extension of the ideas of the continuous wavelet transform (CWT) and is based on a moving and scalable localizing Gaussian window.
R. Stockwell, L. Mansinha, R. P. Lowe
semanticscholar   +1 more source

Asymptotic expansion of the wavelet transform for small a [PDF]

open access: yesResearch monograph The Wavelet Transform by Prof. R S Pathak and edited by Prof. C. K. Chui (Stanford University, U.S.A.) and published by Atlantis Press/World Scientific (2009), ISBN: 978-90-78677-26-0, pp:164-169, 2014
Asymptotic expansion of the wavelet transform for small values of the dilation parameter a is obtained using asymptotic expansion of the Mellin convolution technique ofWong. Asymptotic expansions of Morlet wavelet transform, Mexican hat wavelet transform and Haar wavelet transform are obtained as special cases.
arxiv  

Harnessing Outer Space for Improved Electrocaloric Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo   +8 more
wiley   +1 more source

Continuous wavelet transform on the hyperboloid

open access: yesApplied and Computational Harmonic Analysis, 2007
AbstractIn this paper we build a continuous wavelet transform (CWT) on the upper sheet of the 2-hyperboloid H+2. First, we define a class of suitable dilations on the hyperboloid through conic projection. Then, incorporating hyperbolic motions belonging to SO0(1,2), we define a family of axisymmetric hyperbolic wavelets.
Bogdanova, I.   +2 more
openaire   +3 more sources

Gradient-based Filter Design for the Dual-tree Wavelet Transform [PDF]

open access: yesarXiv, 2018
The wavelet transform has seen success when incorporated into neural network architectures, such as in wavelet scattering networks. More recently, it has been shown that the dual-tree complex wavelet transform can provide better representations than the standard transform. With this in mind, we extend our previous method for learning filters for the 1D
arxiv  

Biologically‐Inspired Melt Electrowriting for the Generation of Highly Biomimetic Functional Myocardium

open access: yesAdvanced Functional Materials, EarlyView.
In this work, melt electrowriting is used to fabricate a 3D printed scaffold design that generates engineered cardiac tissues with in‐plane contraction, mimicking natural myocardium. It is shown that these tissues display advanced maturation and functionality.
Olalla Iglesias‐García   +23 more
wiley   +1 more source

How hard is the euro area core? A wavelet analysis of growth cycles in Germany, France and Italy [PDF]

open access: yes, 2006
Using recent advances in time-varying spectral methods, this research analyses the growth cycles of the core of the euro area in terms of frequency content and phasing of cycles.
Crowley, P. M.   +2 more
core  

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