Results 231 to 240 of about 129,142 (267)
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Sleep Medicine Reviews, 2010
Snoring is a prevalent disorder affecting 20-40% of the general population. The mechanism of snoring is vibration of anatomical structures in the pharyngeal airway. Flutter of the soft palate accounts for the harsh aspect of the snoring sound. Natural or drug-induced sleep is required for its appearance.
Micheline M D De Meyer +2 more
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Snoring is a prevalent disorder affecting 20-40% of the general population. The mechanism of snoring is vibration of anatomical structures in the pharyngeal airway. Flutter of the soft palate accounts for the harsh aspect of the snoring sound. Natural or drug-induced sleep is required for its appearance.
Micheline M D De Meyer +2 more
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2016
From the earliest stages of Greek thought, sound was thought to originate as the result of an impact between two objects. At first it was believed that the swiftness and force of the impact affected both volume and pitch; then it became clear that these were two different parameters.
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From the earliest stages of Greek thought, sound was thought to originate as the result of an impact between two objects. At first it was believed that the swiftness and force of the impact affected both volume and pitch; then it became clear that these were two different parameters.
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Acoustic Dose and Acoustic Dose-Rate
Ultrasound in Medicine & Biology, 2009Acoustic dose is defined as the energy deposited by absorption of an acoustic wave per unit mass of the medium supporting the wave. Expressions for acoustic dose and acoustic dose-rate are given for plane-wave conditions, including temporal and frequency dependencies of energy deposition.
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Acoustic transducer for acoustic microscopy
The Journal of the Acoustical Society of America, 1991A shear acoustic transducer-lens system in which a shear polarized piezoelectric material excites shear polarized waves at one end of a buffer rod having a lens at the other end which excites longitudinal waves in a coupling medium by mode conversion at selected locations on the lens.
Butrus T. Khuri-Yakub, Ching H. Chou
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Physical Acoustics and Metrology of Fluids
, 2020FLUID PROPERTIES FROM THE SPEED AND ABSORPTION OF SOUND Introduction Thermodynamic properties from the speed of sound Kinetic information from the speed and absorption of sound Transport properties from sound absorption at a surface FUNDAMENTAL THEORY ...
J. Trusler
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Advanced Applications in Acoustics, Noise and Vibration
, 2018Part 1: Signal Processing 1. Signal Processing Techniques Part 2: Acoustic Modelling 2. Numerical Methods in Acoustics 3. Source Identification and Location 4.
F. Fahy, J. Walker
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A second wave of topological phenomena in photonics and acoustics
Nature, 2023Xiujuan Zhang +4 more
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Application of Nanogenerators in the Field of Acoustics
ACS Applied Electronic Materials, 2023Xiaofei Yu +3 more
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The SAGE Encyclopedia of Human Communication Sciences and Disorders, 2019
ore than three-quarters of the teachers in a recent poll gave the acoustics in their classrooms a failing grade. The problem is most commonly a "signal to noise" ratio issue, which results in poor speech intelligibility.
Audiovideo Interiors
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ore than three-quarters of the teachers in a recent poll gave the acoustics in their classrooms a failing grade. The problem is most commonly a "signal to noise" ratio issue, which results in poor speech intelligibility.
Audiovideo Interiors
semanticscholar +1 more source
Imaging Acoustics and Acoustic Imaging
2002This paper provides a brief overview of some of the techniques for imaging acoustic waves inside and on the surface of solids. Optical methods show the influence of material anisotropy on acoustical wave propagation in transparent solids. Multiple-pulse holography images waves on the surface of materials without the necessity of scanning.
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