Local Defect Resonance (LDR): A Route to Highly Efficient Thermosonic and Nonlinear Ultrasonic NDT [PDF]
, 2014 Conference ...
Solodov
core +1 more source
A Robust Approach to Optimal Matched Filter Design in Ultrasonic Non-Destructive Evaluation (NDE) [PDF]
, 2016 The matched filter was demonstrated to be a powerful yet efficient technique to enhance defect detection and imaging in ultrasonic non-destructive evaluation (NDE) of coarse grain materials, provided that the filter was properly designed and optimized ...
Hayward, Gordon, Li, Minghui
core +3 more sources
Synthetic aperture guided wave imaging using a mobile sensor platform [PDF]
, 2012 This oral session at conference looks at synthetic aperture guided wave imaging using a mobile sensor ...
Dobie, Gordon +4 more
core +1 more source
Three-Dimensional Contouring Control: A Task Polar Coordinate Frame Approach
IEEE Access, 2019 In order to characterize the surface quality of machined parts, researchers have proposed a family of coordinate transformation-based approaches to deal with the contour following problem, which alleviate the computational consumption of calculating the ...
Ran Shi, Yunjiang Lou
doaj +1 more source
Single-breath-hold photoacoustic computed tomography of the breast [PDF]
, 2018 We have developed a single-breath-hold photoacoustic computed tomography (SBH-PACT) system to reveal detailed angiographic structures in human breasts. SBH-PACT features a deep penetration depth (4 cm in vivo) with high spatial and temporal resolutions ...
Appleton, Catherine M +7 more
core +2 more sources
Multi Spherical Wave Imaging Method Based on Ultrasonic Array
Sensors, 2022 The imaging range of traditional plane wave imaging is usually limited by the directivity of the plane wave. In this paper, a multi spherical wave imaging method based on an ultrasonic array is proposed, which radiates both compression and shear waves in
Zhi-Ying Liu +3 more
doaj +1 more source
A mathematical and numerical framework for ultrasonically-induced Lorentz force electrical impedance tomography [PDF]
, 2014 We provide a mathematical analysis and a numerical framework for Lorentz force electrical conductivity imaging. Ultrasonic vibration of a tissue in the presence of a static magnetic field induces an electrical current by the Lorentz force.
Ammari, Habib +4 more
core +3 more sources
Sonoluminescence and sonochemiluminescence from a microreactor [PDF]
, 2012 Micromachined pits on a substrate can be used to nucleate and stabilize microbubbles in a liquid exposed to an ultrasonic field. Under suitable conditions, the collapse of these bubbles can result in light emission (sonoluminescence, SL).
Apfel +63 more
core +9 more sources
Rotational-invariant speckle-scanning ultrasonography through thick bones
Scientific Reports, 2021 Ultrasonography is a major medical imaging technique that has been broadly applied in many disease diagnoses. However, due to strong aberration and scattering in the human skull, high-resolution transcranial ultrasonic imaging remains a grand challenge ...
Siyi Liang, Lidai Wang
doaj +1 more source
FEA-Based Ultrasonic Focusing Method in Anisotropic Media for Phased Array Systems
Applied Sciences, 2021 Traditional ultrasonic imaging methods have a low accuracy in the localization of defects in austenitic welds because the anisotropy and inhomogeneity of the welds cause distortion of the ultrasonic wave propagation paths in anisotropic media.
Seongin Moon +7 more
doaj +1 more source