Results 41 to 50 of about 105,270 (315)

Ultrasonic Rayleigh wave enhancements from angled defects in aluminium [PDF]

, 2011
Non-linear enhancements of ultrasonic surface wave amplitude and frequency have been observed when an incident wave interacts with a surface defect.
Edwards, R. S. (Rachel S.), Donald O. Thompson, A. R. Clough, Dale E. Chimenti, B. Dutton, Clough, A. R., Dutton, B. (Ben), R. S. Edwards   +7 more
core   +1 more source

Automated Identification and Localization of Rail Internal Defects Based on Object Detection Networks

Applied Sciences
The timely identification of rail internal defects and the application of corresponding preventive measures would greatly reduce catastrophic failures, such as rail breakage.
Sicheng Wang, Bin Yan, Xinyue Xu, Weidong Wang, Jun Peng, Yuzhe Zhang, Xiao Wei, Wenbo Hu   +7 more
doaj   +1 more source

Numerically Trained Ultrasound AI for Monitoring Tool Degradation

Advanced Intelligent Systems, 2022
Monitoring tool degradation during manufacturing can ensure product accuracy and reliability. However, due to variations in degradation conditions and complexity in signal analysis, effective and broadly applicable monitoring is still challenging to ...
Yuqi Jin, Xinyue Wang, Edward A. Fox, Zhiwu Xie, Arup Neogi, Rajiv S. Mishra, Tianhao Wang   +6 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

A noncontact ultrasonic platform for structural inspection

, 2011
Miniature robotic vehicles are receiving increasing attention for use in nondestructive testing (NDE) due to their attractiveness in terms of cost, safety, and their accessibility to areas where manual inspection is not practical. Conventional ultrasonic
Summan, Rahul, Dobie, Gordon, Pierce, S. Gareth, Hayward, Gordon, G. Hayward, G. Dobie, W. Galbraith, R. Summan, S. G. Pierce, Galbraith, Walter   +9 more
core   +1 more source

Sparse Blind Deconvolution with Nonconvex Optimization for Ultrasonic NDT Application

Sensors, 2020
In the field of ultrasonic nondestructive testing (NDT), robust and accurate detection of defects is a challenging task because of the attenuation and noising of the ultrasonic wave from the structure.
Xuyang Gao, Yibing Shi, Kai Du, Qi Zhu, Wei Zhang   +4 more
doaj   +1 more source

Laser ultrasonic detection method and test for inner surface cracks of X80 pipelines

You-qi chuyun, 2021
As X80 pipelines are applied in large scale, the safety of long-term service of long-distance oil and gas pipelines has attracted much attention. In order to solve the problem of detecting the inner surface crack defects of pipelines, experimental ...
Jian-shu CAO, Bao-ping JI, Wei-ke JI
doaj   +1 more source

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli, Seth Rotz, Masatoshi Takagi, Richa Sharma   +3 more
wiley   +1 more source

Simulation of ultrasonic lamb wave generation, propagation and detection for an air coupled robotic scanner

, 2011
A computer simulator, to facilitate the design and assessment of a reconfigurable, air-coupled ultrasonic scanner is described and evaluated. The specific scanning system comprises a team of remote sensing agents, in the form of miniature robotic ...
Keith Worden, Walter Galbraith, Burnham, Kenneth, Hayward, Gordon, S. Gareth Pierce, Gordon Hayward, Worden, Keith, Galbraith, Walter, Spencer, Andrew, Dobie, Gordon, Pierce, S. Gareth, Gordon Dobie, Andrew Spencer, Kenneth Burnham   +13 more
core   +1 more source

An Ultrasonic Sensor for Distance Measurement in Automotive Applications [PDF]

, 2001
This paper describes an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle. The sensor is based on the measurement of the time of flight of an ultrasonic pulse, which is reflected by the ground. A
Parvis, Marco, Carullo, Alessio
core   +1 more source