Results 51 to 60 of about 1,828,003 (344)
On the development and testing of a guided ultrasonic wave array for structural integrity monitoring [PDF]
, 2006 The prototype of a guided ultrasonic wave array for the structural integrity monitoring of large, plate-like structures has been designed, built, and tested.
Wilcox, PD +4 more
core +1 more source
Automated Flaw Detection in Multi-channel Phased Array Ultrasonic Data Using Machine Learning
Journal of nondestructive evaluation, 2021 Modern ultrasonic inspections utilize ever-richer data-sets made possible by phased array equipment. A typical inspection may include tens of channels with different refraction angle, that are acquired at high speed.
Oskar Siljama +3 more
semanticscholar +1 more source
A Model for Multiview Ultrasonic Array Inspection of Small Two-Dimensional Defects
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019 The multiview total focusing method (TFM) is an imaging algorithm for ultrasonic full matrix array data that exploits internal reflections and mode conversions in the inspected object to create multiple images, the views.
Nicolas Budyn +4 more
semanticscholar +1 more source
IEEE Transactions on Biomedical Circuits and Systems, 2021 A 2D ultrasonic array is the ultimate form of a focused ultrasonic system, which enables electronically focusing beams in a 3D space. A 2D array is also a versatile tool for various applications such as 3D imaging, high-intensity focused ultrasound ...
C. Seok +4 more
semanticscholar +1 more source
Ultrasound nondestructive evaluation (NDE) imaging with transducer arrays and adaptive processing [PDF]
, 2011 This paper addresses the challenging problem of ultrasonic non-destructive evaluation (NDE) imaging with adaptive transducer arrays. In NDE applications, most materials like concrete, stainless steel and carbon-reinforced composites used extensively in ...
Hayward, G. +3 more
core +1 more source
Archives of Acoustics, 2019 This paper presents the results of acoustic field distribution simulations for the 1024-element ultrasonic ring array intended for the diagnosis of female breast tissue with the use of ultrasound tomography.
Wiktor STASZEWSKI +2 more
doaj +1 more source
High Voltage, 2021 National Natural Science Foundation of China, Grant/Award Number: U1766217; State Grid Corporation of China Science and Technology Project, Grant/Award Number: 5500‐202099279A‐ 0‐0‐00 Abstract In order to improve the sensitivity and accuracy of oil‐paper
Zhixian Zhang +6 more
semanticscholar +1 more source
Design of high frequency ultrasonic array transducers for medical imaging [PDF]
, 2011 Ultrasonic transducers have been widely used in the medical applications. High frequency array transducers have recently attracted many research interests, since it provides not only the electronic beamforming but also the very fine image resolution. The
Qian, Yichen
core
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
IEEE Access, 2021 In the safety protection system of the railway electric multiple unit (EMU), the safety of the running part is extremely important. The daily detection of the internal hazard defects of the wheels in the running parts relies on a professional trackside ...
Zhilin Sun, Jingui Lu
doaj +1 more source