A SVD-Based Signal De-Noising Method With Fitting Threshold for EMAT
IEEE Access, 2021 The electromagnetic acoustic transducer (EMAT) is a powerful and useful non-destructive testing technology for structural health monitoring. However, EMAT has an issue of low efficiency in conversion and its signal is easily affected by noise, which make
Biting Lei +3 more
doaj +1 more source
Properties of Pb(Zr,Ti)O$_3$ ultrathin films under stress-free and open-circuit electrical boundary conditions [PDF]
, 2004 A first-principles-based scheme is developed to simulate properties of (001) PbO-terminated Pb(Zr$_{1-x}$Ti$_{x}$)O$_3$ thin films that are under stress-free and open-circuit boundary conditions.
B. Meyer +7 more
core +2 more sources
Detection of Debonding Area in Aluminium-GFRP Laminates by Electromagnetic Transducer
Nihon Kikai Gakkai ronbunshu, 2023 Electromagnetic Acoustic Transducer (EMAT) is applied to nondestructive testing of aluminum-GFRP laminates. Because of its high specific strength, laminated FRP came to be used in place of metal materials.
Yuki YABUUCHI +3 more
doaj +1 more source
Scattering of Elastic Waves in a Quasi-one-dimensional Cavity: Theory and Experiment
, 2013 We study the scattering of torsional waves through a quasi-one-dimensional cavity both, from the experimental and theoretical points of view. The experiment consists of an elastic rod with square cross section.
Báez, G. +4 more
core +1 more source
Shear horizontal (SH) ultrasound wave propagation around smooth corners [PDF]
, 2014 Shear horizontal (SH) ultrasound guided waves are being used in an increasing number of non-destructive testing (NDT) applications. One advantage SH waves have over some wave types, is their ability to propagate around curved surfaces with little energy ...
Burrows, S. E. (Susan E.) +2 more
core +1 more source
A New Omni-Directional EMAT for Ultrasonic Lamb Wave Tomography Imaging of Metallic Plate Defects
Sensors, 2014 This paper proposes a new omni-directional electromagnetic acoustic transducer (EMAT) for the ultrasonic Lamb wave (ULW) tomography imaging (TI) of defects in metallic plates.
Songling Huang +3 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2023 Electromagnetic acoustic resonance method (EMAR) is promising for online monitoring of pipes wall thinning with corrosion during operation. However, the improvement of measurement accuracy is one of issues to be solved, although some signal processing ...
Yuichi HIROSE +4 more
doaj +1 more source
High power phased EMAT arrays for nondestructive testing of as-cast steel [PDF]
, 2019 A new high-power electromagnetic acoustic transducer (EMAT) solid state pulser system has been developed that is capable of driving up to 4 EMAT coils with programmable phase delays, allowing for focusing and steering of the acoustic field.
Dixon, Steve M. +2 more
core +1 more source
Anderson Localization Phenomenon in One-dimensional Elastic Systems
, 2013 The phenomenon of Anderson localization of waves in elastic systems is studied. We analyze this phenomenon in two different set of systems: disordered linear chains of harmonic oscillators and disordered rods which oscillate with torsional waves.
Diaz-de-Anda, A. +5 more
core +1 more source
Weaning from ketogenic diet therapy in children with epilepsy: Insights from a retrospective study
Epilepsia, EarlyView.Abstract Objective This study was undertaken to describe weaning practices following ketogenic diet therapy (KDT) in children with epilepsy and to identify clinical factors associated with seizure exacerbation or antiseizure medication adjustments during or after weaning from KDT.
Noémie Donnard +10 more
wiley +1 more source