Open AccessBook
Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography
Earl G. Williams,J. Adin Mann +1 more
TLDR
The Inverse Problem: Cylindrical NAH. as discussed by the authors The Inverse problem: Planar NAH and the Inverse NP-hardness of planar plane waves.Abstract:
Preface. Fourier Transforms & Special Functions. Plane Waves. The Inverse Problem: Planar NAH. Cylindrical Waves. The Inverse Problem: Cylindrical NAH. Spherical Waves. Spherical NAH. Green Functions & the Helmholtz Integral. Index.read more
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Journal ArticleDOI
Inverse Patch Transfer Functions Method as a Tool for Source Field Identification
TL;DR: In this article, a procedure to identify wall pressure and intensity of the source without any additional measurement is proposed, using this new intensity identification, the influence of background noise, evanescent waves and mesh discretization are illustrated on numerical examples.
Dissertation
Simulation numérique d'un réverbérateur à plaque
TL;DR: In this article, a simulation of a reverberateur a plaque is presented, where the simulation is performed by modeles physiques of a plaque generique permettant a l'utilisateur le choix des principaux parametres : caracteristiques geometriques et physiques du materiau de la plaque, conditions aux limites, positions de l'excitateur and des accelerometres, and l'influence d'une plaque poreuse a proximite.
Journal ArticleDOI
Ultrasound-Mediated Targeted Drug Delivery Generated by Multifocal Beam Patterns: An In vitro Study
Dana Gourevich,Yoni Hertzberg,Alexander Volovick,Alexander Volovick,Yaron Shafran,Gil Navon,Sandy Cochran,Andreas Melzer +7 more
TL;DR: A novel approach of multifocal spot generation was investigated and, with the help of ultrasonic contrast agents, the intracellular drug uptake was increased by an average factor of 3.5 compared with the control group.
Journal ArticleDOI
Theory and perceptual evaluation of the binaural reproduction and beamforming tradeoff in the generalized spherical array beamformer
TL;DR: The theory of the tradeoff that arises when incorporating both beamforming and binaural reproduction in a single array is developed and investigated through a simulation study and a listening test, allowing the user to emphasize either of the two, but with a clear tradeoff.
Journal ArticleDOI
An experimental investigation into active structural acoustic cloaking of a flexible cylinder
TL;DR: It is shown that the practical causality constraint limits the performance of the active cloak at lower frequencies, but the causally constrained controller is able to achieve approximately 10 dB of attenuation in the far-field scattered acoustic power, using an array of 9 control actuators.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more