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Transformation acoustics.

The Journal of the Acoustical Society of America, 2010
It is now well understood how coordinate transformations of the Maxwell equations can be interpreted in terms of an electromagnetic material in the original coordinates with transformed values of permittivity and permeability. Through this transformation optics approach, the bending and stretching of electromagnetic fields specified by coordinate ...
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Acoustical tweezers

The Journal of the Acoustical Society of America, 1991
A stable force potential well was generated by two collimated focused ultrasonic (3.5 MHz) beams propagating along opposite directions. Latex particles (270-μm diameter) and clusters of frog eggs were trapped in the potential well. The trapped object can be moved axially or laterally by moving one of the PZT focusing transducers that generate the ...
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Topological acoustics

Nature Reviews Materials, 2022
Haoran Xue, Yihao Yang, Baile Zhang
exaly  

Nonlinear Acoustics and Acoustic Chaos

2002
The very basic standard elements of nonlinear acoustics are presented: The origin of nonlinearity, equations of state, simple nonlinear waves and shock wave formation. Sonoluminescence is chosen as a modern example of nonlinear acoustics. Some notations from nonlinear dynamics are introduced needed for understanding chaotic dynamics and acoustic ...
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Acoustic Trauma

Archives of Otolaryngology - Head and Neck Surgery, 1955
M, SALTZMAN, M S, ERSNER
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Acoustical Damping in Automobile Acoustics

2004
In modern automobile acoustics, many different materials are used for improving the acoustic properties of the cabin of the vehicle, thus improving the sound quality inside the cabin. One of the materials widely used in after-market modifications made on vehicles is called Dynamat. The ability of Dynamat to reduce the vibrations of the structure of the
Bruči, Karlo   +2 more
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