Results 91 to 100 of about 27,924 (308)
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Signature Recognition Based on Discrete Wavelet Transform
UHD Journal of Science and Technology, 2019 Personal identification is an actively developing area of research. Human signature is a vital biometric attribute which can be used to authenticate human identity. There are many approaches to recognize signature with a lot of researches.
Sivana Salahadin Muhamad +1 more
doaj +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons
Advanced Materials, EarlyView.Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner +9 more
wiley +1 more source
A fast discrete wavelet transform algorithm for visual processing applications
, 2013 For visual processing applications, the two-dimensional (2-D) Discrete Wavelet Transform (DWT) can be used to decompose an image into four-subband images.
Hsia, Chih-Hsien; Guo, Jing-Ming; Chiang, Jen-Shiun
core +1 more source
CHARACTERIZATION OF BREAST TISSUES IN COMBINED TRANSFORMS DOMAIN USING SUPPORT VECTOR MACHINES [PDF]
ICTACT Journal on Image and Video Processing, 2011 Mammography is a well established imaging technique for showing tissue abnormalities of breast and has been proven to reduce death rate due to breast cancer in screened populations of women.
B.N. Prathibha, V. Sadasivam
doaj
Advanced Materials, EarlyView.The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha +10 more
wiley +1 more source
A New Folded Architecture for 2-D Discrete Wavelet Transform
, 2012 [[abstract]]Discrete wavelet transform (DWT) is a very useful tool for several applications, including signal coding, signal analysis, and image compression.
林誠偉; 張孟洲
core
, 2012 Vibration signals from a gearbox are usually very noisy which makes it difficult to find reliable symptoms of a fault in a multistage gearbox. This paper explores the use of time synchronous average (TSA) to suppress the noise and Continue Wavelet ...
Gu, Fengshou +8 more
core +1 more source
A STATISTICAL SHARPNESS MEASURE BASED MULTI FOCUS IMAGE FUSION USING DOUBLE DENSITY DISCRETE WAVELET TRANSFORM [PDF]
ICTACT Journal on Image and Video Processing, 2013 Image fusion is the process of combining two or more images of the same scene to form the fused image retaining important features from each image with extended information content.
K. Kannan, S. Arumuga Perumal
doaj