Results 31 to 40 of about 2,352,224 (278)

Amplitude Dispersion Compensation for Damage Detection Using Ultrasonic Guided Waves

open access: yesSensors, 2016
Besides the phase and group velocities, the amplitude of guided wave mode is also frequency dependent. This amplitude dispersion also influences the performance of guided wave methods in nondestructive evaluation (NDE) and structural health monitoring ...
Liang Zeng   +3 more
doaj   +1 more source

A New Approach to Guided Wave Ray Tomography for Temperature-Robust Damage Detection Using Piezoelectric Sensors

open access: yesSensors, 2018
In this paper, a new approach to guided wave ray tomography for temperature-robust damage detection with time-of-flight (TOF) temperature compensation is developed.
Dan Li   +5 more
doaj   +1 more source

Guided Wave for plate inspection

open access: yese-Journal of Nondestructive Testing
Guided wave ultrasonic testing (GWT) for plate inspection presents a valuable non-destructive evaluation technique for monitoring large, inaccessible structural components such as petrochemical tank floors and dam penstock gates. Unlike traditional spot-
Hugo Hervé-côte, Sevan Bouchy
doaj   +1 more source

A Quantitative Approach for the Bone-implant Osseointegration Assessment Based on Ultrasonic Elastic Guided Waves

open access: yesSensors, 2019
Quantitative and reliable monitoring of osseointegration will help further evaluate the integrity of the orthopaedic construct to promote novel prosthesis design and allow early mobilisation.
Benjamin Steven Vien   +3 more
doaj   +1 more source

The mode transformation of a T(0,1) guided wave in an elbow pipe and its influence on defect location

open access: yesAIP Advances, 2020
To correct the inaccurate location of elbow pipe defects, our study established an experimental platform for magnetostrictive T(0,1) guided wave detection.
Shengrong Long   +4 more
doaj   +1 more source

2010 Annual Report

open access: yes
Oregon Wave Energy Trust (OWET) is a nonprofit public-private partnership funded by the Oregon Innovation Council. Its mission is to support the responsible development of wave energy in Oregon. OWET emphasizes an inclusive, collaborative model to ensure
Oregon Wave Energy Trust
core   +6 more sources

Guided-jet waves

open access: yesJournal of Fluid Mechanics
Guided-jet waves have been shown to close resonance loops in a myriad of problems such as screech and impingement tones in jets. These discrete, upstream-travelling waves have long been identified in linear-stability models of jet flows, but in this work they are instead considered in the context of an acoustic-scattering problem ...
Nogueira, Petrônio A.S.   +5 more
openaire   +3 more sources

Large plate monitoring using guided ultrasonic waves [PDF]

open access: yes, 2015
Areas of stress concentration around welded structures are likely to lead to fatigue cracks and corrosion pitting during the life time of technical machinery.
Ghandourah, EII
core  

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Defects Inspection in Wires by Nonlinear Ultrasonic-Guided Wave Generated by Electromagnetic Sensors

open access: yesApplied Sciences, 2020
Steel wires are widely used as raw materials for spring valves in engines. Considering the quality and safety issues of their structure, there is a demand to develop nondestructive inspection approaches to detect initial damages in steel.
Junpil Park   +3 more
doaj   +1 more source

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