Results 71 to 80 of about 289,031 (382)
Blind digital speech watermarking based on Eigen-value quantization in DWT
Journal of King Saud University: Computer and Information Sciences, 2015 This paper presents a new blind digital speech watermarking technique based on Eigen-value quantization in Discrete Wavelet Transform. Initially, each frame of the digital speech was transformed into the wavelet domain by applying Discrete Wavelet ...
Mohammad Ali Nematollahi +2 more
doaj +1 more source
How hard is the euro area core? A wavelet analysis of growth cycles in Germany, France and Italy [PDF]
, 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
Advanced Functional Materials, EarlyView.This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee +9 more
wiley +1 more source
WSOM: Building Adaptive Wavelets with Self-organizing Maps [PDF]
, 1997 The WSOM (Wavelet Self-Organizing Map) model, a neural network for the creation of wavelet bases adapted to the distribution of input data, is introduced.
Campos, Marcos, Carpenter, Gail
core +1 more source
Simple Signal Extension Method for Discrete Wavelet Transform
, 2017 Discrete wavelet transform of finite-length signals must necessarily handle the signal boundaries. The state-of-the-art approaches treat such boundaries in a complicated and inflexible way, using special prolog or epilog phases.
Barina, David +2 more
core +1 more source
Conformally Perforated Shellular Metamaterials with Tunable Thermomechanical and Acoustic Properties
Advanced Functional Materials, EarlyView.This study introduces Conformally Perforated Shellular Metamaterials (CPSMs), which overcome TPMS design limitations by mapping 2D cellular layouts onto 3D surfaces. CPSMs exhibit enhanced elastic stiffness, thermal conductivity, and acoustic performance compared to intact P‐type shellulars, demonstrating their potential as multifunctional ...
Benyamin Shahryari +8 more
wiley +1 more source
The Continuous Wavelet Transform: A Primer [PDF]
Wavelet analysis is becoming more popular in the Economics discipline. Until recently, most works have made use of tools associated with the Discrete Wavelet Transform.
Luís Francisco Aguiar +1 more
core +3 more sources
Complex Discrete Wavelet Transform-Based Image Denoising [PDF]
Engineering and Technology Journal, 2011 Dual tree complex discrete wavelet transform is implemented for denoising as an important image processing application. Two wavelet trees are used, one generating the real part of the wavelet coefficients tree and the other generating the imaginary part ...
Hadeel N. Abdullah +2 more
doaj +1 more source
A Unique Wavelet-based Multicarrier System with and without MIMO over Multipath Channels with AWGN [PDF]
, 2015 yesRecent studies suggest that multicarrier systems using wavelets outperform conventional OFDM systems using the FFT, in that they have well-contained side lobes, improved spectral efficiency and BER performance, and they do not require a cyclic prefix.
Abd-Alhameed, Raed A. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Designing stable Ru nanoparticle catalyst remains a critical challenge in electrochemical applications. Here, a strategy is presented to stabilize Ru catalysts by leveraging Ce‐doped ZrO2 supports (ZrCeO2‐x), which enhance catalyst durability and activity through electronic metal‐support interactions and stabilized oxygen vacancies.
Mansu Kim +9 more
wiley +1 more source