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Influence of Pore Size on the Acoustic Absorption Properties of Open-Cell AlSi Porous Cylinders. [PDF]

open access: yesMaterials (Basel)
Andrei CC   +6 more
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Impedance-Acoustic Tomography

SIAM Journal on Applied Mathematics, 2008
In this work we present a new hybrid imaging technique that combines electrical impedance tomography (EIT) with acoustic tomography. The novel technique makes use of the fact that the absorbed electrical energy inside the body raises its temperature, thus leading to expansion effects.
Bastian Gebauer, Otmar Scherzer
openaire   +1 more source

Tympanometry and Acoustic Impedance

Acta Oto-Laryngologica, 1977
In recordings of the acoustic impedance of the middle ear (tympanometry) the change in air pressure in the ear canal will mostly influence the capacitive component of the acoustic impedance. By choosing a probe tone frequency close to the resonance frequency of the middle ear, characteristic tympanometric patterns can be demonstrated in certain middle ...
G, Lidén   +3 more
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Acoustic Impedance of Tissue

Investigative Radiology, 1969
A technique is described for measuring directly the acoustic impedance of tissue, and experimental results are reported for normal and abnormal post-mortem mammalian tissue as well as various live tissue at 5 MHz.
E C, Gregg, G L, Palagallo
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Acoustic Impedance Transformation

Archives of Otolaryngology - Head and Neck Surgery, 1987
To the Editor .—I read with interest Dr Goode's 1 commentary on the potential for otosurgery to transform "tin" ears into "gold" ears. The author asserts that our conventional beliefs about the middle ear performing acoustic impedance transformation between the atmosphere and the inner ear may be incorrect.
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