Bright and gap solitons in membrane-type acoustic metamaterials.
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DOI: 10.1103/physreve.96.022214
Abstract: We study analytically and numerically envelope solitons (bright and gap solitons) in a one-dimensional, nonlinear acoustic metamaterial, composed of an air-filled waveguide periodically loaded by clamped elastic plates. Based on the transmission line approach, we… read more here.
Keywords: bright gap; gap solitons; membrane type; type acoustic ... See more keywords
Influence of the type of acoustic transducer in pure-tone audiometry
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DOI: 10.1590/2317-1782/20212021019
Abstract: ABSTRACT Purpose To compare the air-conduction hearing thresholds obtained with different acoustic transducers and verify the users’ preferences regarding them. Methods This is a cross-sectional, analytical, observational study with 26 participants aged 18 to 30… read more here.
Keywords: acoustic transducer; transducer; type acoustic; pure tone ... See more keywords
Acoustic Insulation Mechanism of Membrane-Type Acoustic Metamaterials Loaded with Arbitrarily Shaped Mass Blocks of Variable Surface Density
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DOI: 10.3390/ma15041556
Abstract: Membrane-type acoustic metamaterials (MAMs) have recently received widespread attention due to their good low-frequency sound-transmission-loss (STL) performance. A fast prediction method for the STL of rectangular membranes loaded with masses of arbitrary shapes and surface… read more here.
Keywords: acoustic metamaterials; mass; membrane type; surface density ... See more keywords