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Browsing by Subject "Sound speed"

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Browsing by Subject "Sound speed"

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    Experimental realization of broadband tunable resonators based on anisotropic metafluids 
    Spiousas, Ignacio; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José (American Institute of Physics, 2011-06-13)
    This letter demonstrates the mechanical tuning of modes confined in two-dimensional acoustic cavities based on anisotropic metafluids. The employed metafluids have been designed with effective parameters such that the ...
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    Homogenization theory for periodic distributions of elastic cylinders embedded in a viscous fluid 
    Reyes Ayona, Edgar; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José (Acoustical Society of America, 2012-10)
    A multiple-scattering theory is applied to study the homogenization of clusters of elastic cylinders distributed in a isotropic lattice and embedded in a viscous fluid. Asymptotic relations are derived and employed to ...
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    Reduced acoustic cloaks based on temperature gradients 
    García Chocano, Víctor Manuel; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José (American Institute of Physics, 2012-08-22)
    This letter presents the design of a reduced acoustic cloak that uses a temperature gradient in order to obtain sound speeds larger than in air. The cloak consists of a circular acoustic crystal made of ten concentric ...