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In-Process Ultrasonic Monitoring and Nugget Geometry Evaluation in Resistance Spot Welding of Stainless Steel. [PDF]
Materials (Basel)Lv J +6 more
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Tranquillity as a Determinant of Health: A Synthesis of Exposure Surrogates and Operationalization for Environmental Epidemiology. [PDF]
Noise HealthJiang X +3 more
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A Portable Neck-Surface Piezoelectric Sensor for Evaluating Subclinical Carotid Atherosclerosis via Snoring Vibratory Analysis: An Exploratory Dual-Modality Study. [PDF]
Biosensors (Basel)Lee LA +10 more
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Acoustic and perceptual indicators of emotional stress
The Journal of the Acoustical Society of America, 1983Tape recordings of telephone conversations of Consolidated Edison’s system operator (SO) and his immediate superior (CSO), beginning an hour before the 1977 New York blackout, were analyzed for indications of psychological stress. (SO was responsible for monitoring and switching power loads within the Con Ed network.) Utterances from the two ...
L A, Streeter +4 more
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IEEE Transactions on Aerospace and Electronic Systems, 2001
An improved acoustic target is considered. Acoustic targets estimate the hit coordinates of a supersonic projectile using the time of arrival (TOA) of the supersonic shock wave at several acoustic transducers located in the vicinity of the target. An improved target allows oblique hits, likely in firing practices involving roaming infantry and armor ...
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An improved acoustic target is considered. Acoustic targets estimate the hit coordinates of a supersonic projectile using the time of arrival (TOA) of the supersonic shock wave at several acoustic transducers located in the vicinity of the target. An improved target allows oblique hits, likely in firing practices involving roaming infantry and armor ...
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Separation of Cardiopulmonary Acoustic Indicators
2019 Global Medical Engineering Physics Exchanges/ Pan American Health Care Exchanges (GMEPE/PAHCE), 2019These studies demonstrate a combination of tested methods to separate lung and heart sound signals’ (LS-HS) principal components recorded using a digital dual stethoscope. Initially, when these raw signals are acquired, their principal components intertwine in the characteristics of the frequency and time domains.
P. Mayorga +3 more
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Aircraft Engineering and Aerospace Technology, 1935
CONSTRUCTIONS Electro — Mécaniques d'Asnières, of 236 Avenue d'Argentières, Asnières, Seine, France, have produced an interesting acoustic sounding gear which, it is claimed, gives accurate indications of the height of the aircraft above actual ground by a measurement of the time elapsing between the emission of a sound signal and the arrival of the ...
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CONSTRUCTIONS Electro — Mécaniques d'Asnières, of 236 Avenue d'Argentières, Asnières, Seine, France, have produced an interesting acoustic sounding gear which, it is claimed, gives accurate indications of the height of the aircraft above actual ground by a measurement of the time elapsing between the emission of a sound signal and the arrival of the ...
openaire +1 more source
Acoustic and Perceptual Indicators of Normal and Pathological Voice
Folia Phoniatrica et Logopaedica, 2003The aim of this study was to obtain acoustic correlates to vocal quality of a group of men and women with and without voice disorders, based on evaluations of a group of judges experienced in the field of vocal rehabilitation. In male subjects, perceptual evaluation of normal, hoarse and rough voice qualities was related to the following acoustic ...
J, Muñoz +4 more
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