Results 351 to 360 of about 2,739,977 (397)

THE ABSORPTION OF SOUND IN GAS MIXTURES

The Journal of the Acoustical Society of America, 1953
The absorption of sound has been measured in CO2, CS2, C2H4O, and in mixtures of the latter two gases with CO2 for frequencies ranging from 2 to 10 kc and for pressures ranging from 3 to 300 mm of Hg. The tube method was employed. The absorption was determined by observing the decrease in sound pressure as the path length between the speaker and the ...
openaire   +3 more sources

Sound Absorption in Magnetics

1976
One of the important aspects of the dynamics of magnets is the sound propagation near the critical point. A number of theories have been developed for the case of ultrasonic attenuation at magnetic phase transitions (see for instance the paper by B. Luthi, T.J. Moran and R.J. Pollina [1] and references quoted there).
openaire   +2 more sources

Absorption of Sound in Fluids

Reviews of Modern Physics, 1951
Robert T. Beyer, Jordan J. Markham, R. B. Lindsay   +2 more
openaire   +3 more sources

Tunable acoustic composite metasurface based porous material for broadband sound absorption

Composite structures, 2022
Tianyue Yuan, Xiang Song, Jingjian Xu, Baorui Pan, Dan Sui, Heye Xiao, Jie Zhou   +6 more
semanticscholar   +1 more source

Low frequency sound absorption of adjustable membrane-type acoustic metamaterials

Applied Acoustics, 2022
Tuo Xing, Xiao-Ling Gai, Junjuan Zhao, Xian-hui Li, Ze-Nong Cai, Xi-Wen Guan, Fang Wang   +6 more
semanticscholar   +1 more source

The pore structure and sound absorption capabilities of Homalium (Homalium foetidum) and Jelutong (Dyera costulata)

, 2022
E. Jang, C. Kang
semanticscholar   +1 more source

Tunable underwater low-frequency sound absorption via locally resonant piezoelectric metamaterials

Journal of Sound and Vibration, 2022
Mingfei Wang, K. Yi, R. Zhu
semanticscholar   +1 more source

Topological acoustics

Nature Reviews Materials, 2022
Haoran Xue, Baile Zhang
exaly  

Broadband low-frequency sound absorption via Helmholtz resonators with porous material lining

Journal of Sound and Vibration
Weitao Zhang, Fengxian Xin
semanticscholar   +1 more source

Nonlinear sound absorption of Helmholtz resonators with serrated necks under high-amplitude sound wave excitation

Journal of Sound and Vibration, 2022
Junzhe Zhu, Y. Qu, Hao Gao, Guang Meng
semanticscholar   +1 more source