Results 11 to 20 of about 18,801 (297)

Deep Learning Approaches for Robust Time of Arrival Estimation in Acoustic Emission Monitoring

Sensors, 2022
In this work, different types of artificial neural networks are investigated for the estimation of the time of arrival (ToA) in acoustic emission (AE) signals.
Federica Zonzini, Denis Bogomolov, Tanush Dhamija, Nicola Testoni, Luca De Marchi, Alessandro Marzani   +5 more
doaj   +1 more source

Comparative Assessment of Criticality Indices Extracted from Acoustic and Electrical Signals Detected in Marble Specimens

Infrastructures, 2022
The quantitative determination of the current load carrying capability of already loaded structural elements and the possibility to detect proper indices that could be considered as signals for timely warning that the load carrying capacity is exhausted ...
Stavros K. Kourkoulis, Ermioni D. Pasiou, Andronikos Loukidis, Ilias Stavrakas, Dimos Triantis   +4 more
doaj   +1 more source

Underwater Noise Measurements around a Tidal Turbine in a Busy Port Setting

Journal of Marine Science and Engineering, 2022
Acoustic emissions from current energy converters remain an environmental concern for regulators because of their potential effects on marine life and uncertainties about their effects stemming from a lack of sufficient observational data. Several recent
Joseph Haxel, Xiaoqin Zang, Jayson Martinez, Brian Polagye, Garrett Staines, Zhiqun Daniel Deng, Martin Wosnik, Patrick O’Byrne   +7 more
doaj   +1 more source

A PVDF Receiver for Acoustic Monitoring of Microbubble-Mediated Ultrasound Brain Therapy

Sensors, 2023
The real-time monitoring of spectral characteristics of microbubble (MB) acoustic emissions permits the prediction of increases in blood–brain barrier (BBB) permeability and of tissue damage in MB-mediated focused ultrasound (FUS) brain therapy.
Yi Lin, Meaghan A. O’Reilly, Kullervo Hynynen   +2 more
doaj   +1 more source

The collapse of single bubbles and approximation of the far-field acoustic emissions for cavitation induced by shock wave lithotripsy [PDF]

, 2011
Recent clinical trials have shown the efficacy of a passive acoustic device used during shock wave lithotripsy (SWL) treatment. The device uses the far-field acoustic emissions resulting from the interaction of the therapeutic shock waves with the tissue
Turangan, C.K., Jamaluddin, A.R., T. G. LEIGHTON, Leighton, T.G., Ball, G.J., A. R. JAMALUDDIN, C. K. TURANGAN, G. J. BALL   +7 more
core   +1 more source

Efferent modulation of stimulus frequency otoacoustic emission fine structure

Frontiers in Systems Neuroscience, 2015
Otoacoustic emissions, sounds generated in the inner ear, have become a convenient non-invasive tool to examine the efferent modulation of cochlear mechanics.
Wei eZhao, James B Dewey, Sriram eBoothalingam, Sumitrajit eDhar, Sumitrajit eDhar   +4 more
doaj   +1 more source

Revisiting Oto-Acoustic Emissions

Proceedings of Singapore Healthcare, 2015
Oto-acoustic emissions (OAEs) are an audiometric diagnostic test that allows quick objective measure of hair cell function in the inner ear. It is a reflection of hearing function at the interface of conductive and sensorineural components in the human ...
Leonard Jie Min Soh MBBS, MRCS, Yew Meng Chan MBBS, FRCS, FAMS   +1 more
doaj   +1 more source

Sensoring Fusion Data from the Optic and Acoustic Emissions of Electric Arcs in the GMAW-S Process for Welding Quality Assessment

Sensors, 2012
The present study shows the relationship between welding quality and optical-acoustic emissions from electric arcs, during welding runs, in the GMAW-S process.
Eber Huanca Cayo, Sadek Crisóstomo Absi Alfaro   +1 more
doaj   +1 more source

Detecting Criticality by Exploring the Acoustic Activity in Terms of the “Natural-Time” Concept

Applied Sciences, 2021
The acoustic activity developed in marble specimens under various loading schemes is explored in terms of the recently introduced F-function. The novelty of the study is that instead of describing the temporal evolution of the F-function in terms of ...
Andronikos Loukidis, Dimos Triantis, Ilias Stavrakas, Ermioni D. Pasiou, Stavros K. Kourkoulis   +4 more
doaj   +1 more source

Limitation of Acoustic Emission for Identifying Seeded Defects in Gearboxes [PDF]

, 2005
Acoustic Emissions (AE) is gaining ground as a Nonestructive Technique (NDT) for health diagnosis on rotating machinery. Vast opportunities exist for development of the AE technique on various forms of rotating machinery, including gearboxes.
Mba, David, Tan, Chee Keong
core   +1 more source