Results 241 to 250 of about 22,575 (260)

Underwater low-frequency sound absorption performance and broadband absorption design of membrane-type acoustic metamaterials

Applied Acoustics, 2023
Miaomiao Li
exaly  

Multifunctional elastic aerogels of nanofibrous metal−organic framework for thermal insulation and broadband low-frequency sound absorption

Composites Science and Technology, 2023
Bang-Jing Li, Sheng Zhang, Shu-Ting Fan
exaly  

Low-frequency sound absorption of a metamaterial with symmetrical-coiled-up spaces

Applied Acoustics, 2021
Gildean do N Almeida
exaly  

Ventilation duct silencer design for broad low-frequency sound absorption

Applied Acoustics, 2023
Bo Hou, Cong Gao, Weijia Wen
exaly  

Acoustic Liners for Low-Frequency Sound Absorption: A Preliminary Study

Materials Research Proceedings
Abstract. With growing global awareness of environmental impacts from the transport sector, significant attention is now being directed at reducing noise emissions. In aviation, the dominant source of noise emissions is the engine, which produces intense acoustic energy during take-off and landing phases, often exceeding 140 dB close to the source ...
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Broadening perfect sound absorption by composite absorber filled with porous material at low frequency

JVC/Journal of Vibration and Control, 2022
Baozhu Cheng, Nansha Gao, Yunke Huang
exaly  

A thin -structure with multi-order resonance for underwater broadband sound absorption in low frequency

Applied Acoustics, 2021
Jiu Hui Wu, Li Bo Wang
exaly  

Gradually perforated porous materials backed with Helmholtz resonant cavity for broadband low-frequency sound absorption

Composite Structures, 2021
Fengxian Xin, Xuewei Liu
exaly  

Design of multilayer sound-absorbing composites with excellent sound absorption properties at medium and low frequency via constructing variable section cavities

Composite Structures, 2021
Yansong Wang, Lifeng Ma, Hui Guo
exaly  

THE EFFECT OF PH ON LOW FREQUENCY SOUND ABSORPTION IN THE OCEAN

Sound Propagation and Underwater Systems 1978
DG BROWNING, RH MELLEN
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