Results 211 to 220 of about 17,941 (253)
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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 ...
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Acoustical airspeed indicators
1950Some of the problems associated with the applications of acoustical devices for the determination of airstream characteristics are considered in this study. The velocity and pressure fields for both point sound sources and finite sound sources in both subsonic and supersonic flow are discussed, with a view toward using sound waves for the determination
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Acoustic environment as an indicator of social and physical context
Personal and Ubiquitous Computing, 2005Acoustic environments provide many valuable cues for context-aware computing applications. From the acoustic environment we can infer the types of activity, communication modes and other actors involved in the activity. Environmental or background noise can be classified with a high degree of accuracy using recordings from microphones commonly found in
Dan J. Smith, Ling Ma 0002, Nick Ryan
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Acoustic plug release indicator
The Journal of the Acoustical Society of America, 1985The present invention comprises an acoustic plug release indicator system. The acoustic plug release indicator system comprises a microphone, recording system and operator listening device.
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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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Acoustic consequences and perceptual indicators of stress
The Journal of the Acoustical Society of America, 1978All telephone conversations of Consolidated Edison's system operator beginning an hour before the 1977 New York blackout were studied for indications of emotional stress. The system operator had primary responsibility for monitoring and switching power loads in the New York area.
Lynn A. Streeter +3 more
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Relative Indications for Radiosurgery and Microsurgery for Acoustic Schwannoma
2003The physical and biological principles underlying the use of radiosurgery for the treatment of vestibular schwannomas of up to 2.5 cm in diameter are reviewed together with the historical controversies that have surrounded its introduction. The results in terms of mortality, quality of life, preservation of facial movement and hearing, incidence of ...
W, Pellet +3 more
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Indications for Diagnostic Labyrinthotomy: In Acoustic Neurinoma Suspects
Archives of Otolaryngology - Head and Neck Surgery, 1971Diagnostic labyrinthotomy is indicated in acoustic neurinoma suspects: (1) when there is a progressive unilateral sensorineural loss and the laminograms of the internal auditory canals show no abnormalities; (2) when the posterior fossa contrast study is equivocal or unsatisfactory; (3) when there is a question of whether the filling defect represents ...
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Towards acoustic indicators for soundscape design
2014Scientific research on how people perceive, experience or understand the acoustic environment as a whole (i.e., soundscape) is still in development, both with regards to acoustic properties, as wel ...
Aletta, Francesco +2 more
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