Results 291 to 300 of about 3,088,219 (346)
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Coiled-up structure with porous material lining for enhanced sound absorption
International Journal of Mechanical Sciences, 2023Weitao Zhang, F. Xin
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Sound absorption of space-coiled metamaterials with soft walls
International Journal of Mechanical Sciences, 2023Ping You Sun +6 more
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Sound absorptive protective mat
The Journal of the Acoustical Society of America, 2006The present invention concerns an automotive protective mat (1), also known as throw in mat or protective mat. This mat comprises a microporous stiffening layer (2) (acoustical membrane). This layer may be composed of several sheets. The overall air flow resistance is between 500 Ns/m3 - 4000 Ns/m3.
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Experimental investigation of composite metamaterial for underwater sound absorption
Applied Acoustics, 2023Nansha Gao +6 more
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Trapezoidal sound absorption module
The Journal of the Acoustical Society of America, 1993A trapezoidal-shaped acoustic absorber is designed for use in music recording studios. The absorber is configured in the shape of a right trapezoidal prism and has an internal transverse pegboard partition which divides the absorber into a plurality of chambers. Each of the chambers is lined with fiberglass sound insulation padding and is resonant to a
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Sound barrier absorption panel
The Journal of the Acoustical Society of America, 1994A sound absorbing noise barrier panel has a precast reinforced concrete skin with a series of integral horizontal reinforcing ribs that provide a structurally strong panel that will resist wind loading and other requirements. The ribs form compartments on one surface of the panel skin which are filled with a sound absorbing material.
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Hierarchically maze-like structured nanofiber aerogels for effective low-frequency sound absorption.
Journal of Colloid and Interface Science, 2021Leitao Cao +5 more
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