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Publikováno v:
The Journal of the Acoustical Society of America. 142:2615-2615
Transformation acoustics uses invertible maps to transform a cloaked region to a region with a smaller scatterer. The “elastic” or Norris class of acoustic cloaking theory is inherently broadband, in that it does not rely on the presence of reson
Publikováno v:
The Journal of the Acoustical Society of America. 142:2615-2615
Functionally graded acoustic metamaterials (FGAMs) can be designed to have specific waveguide properties dictated by a theory relevant to the application. Frequently, these material properties do not exist naturally, and must be fabricated by gradual
Publikováno v:
The Journal of the Acoustical Society of America. 142:2615-2615
The field of acoustic metamaterial research has been driven, first, by transformation acoustics cloaking theory. This and other theoretical approaches optimize an acoustic effect through definition of artificial material properties which at present a