Results 141 to 150 of about 5,509,950 (300)
Local discriminant wavelet packet basis for texture classification [PDF]
, 2003 Wavelet packets are well-known for their ability to compactly represent textures consiting of oscillatory patterns such as fingerprints or striped cloth.
Rajpoot, Nasir M. (Nasir Mahmood)
core
Advanced Functional Materials, EarlyView.Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee +21 more
wiley +1 more source
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
core
An efficient error resilience scheme based on wyner-ziv coding for region-of-Interest protection of wavelet based video transmission [PDF]
, 2008 In this paper, we propose a bandwidth efficient error resilience scheme for wavelet based video transmission over wireless channel by introducing an additional Wyner-Ziv (WZ) stream to protect region of interest (ROI) in a frame.
Zhuo, X, Loo, KK, Cosmas, J, Yip, PY
core
Vibration Signal Analysis of RV Reducer based on Wavelet Theory
Jixie chuandong, 2018 The structure of RV reducer is complex,the vibration signal generated during the operation will be interfered by a lot of random noises due to the vibration excitation source. It will affect the real vibration signal be identified.
Chen Liguo, Wang Jiugen, Zhang Jing
doaj
Advanced Functional Materials, EarlyView.ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi +12 more
wiley +1 more source
Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride
Advanced Functional Materials, EarlyView.This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem +15 more
wiley +1 more source
Optical Detection of Cellular Signals at Material Interfaces
Advanced Healthcare Materials, EarlyView.Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren +5 more
wiley +1 more source
Nonparametric estimation of the volatility under microstructure noise: wavelet adaptation [PDF]
We study nonparametric estimation of the volatility function of a diffusion process from discrete data, when the data are blurred by additional noise. This noise can be white or correlated, and serves as a model for microstructure effects in financial ...
Hoffmann, Marc +2 more
core
Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine
Advanced Healthcare Materials, EarlyView.Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi +2 more
wiley +1 more source