Results 171 to 180 of about 2,523,561 (213)

An effective method to enhance the underwater sound absorption performance by constructing a membrane-type acoustic metamaterial

Journal of Physics D: Applied Physics, 2022
Broadband sound absorption has consistently been a challenge in designing underwater sound absorption structure (USAS). Most research of USASs achieve broadband sound absorption through structural optimization, which curbs the freedom of designing, and ...
Ying-ying Sun, Xujin Yuan, Zhongkun Jin, Guangfu Hong, Mingji Chen, Mengjing Zhou, Weiduan Li, D. Fang   +7 more
semanticscholar   +1 more source

Ultralight Single‐Walled Carbon Nanotube Aerogels for Low‐Frequency Sound Absorption

Advanced Engineering Materials, 2022
Absorbing low‐frequency sound below 1000 Hz with an ultralight material is a critical challenge. Nanofibrous sound‐absorbing materials have many interfaces for air‐borne sound loss.
Reo Yanagi, Takahiro Segi, Ryoya Oda, T. Ueno   +3 more
semanticscholar   +1 more source

Improving sound absorption via coupling modulation of resonance energy leakage and loss in ventilated metamaterials

Applied Physics Letters, 2022
Achieving broadband sound absorption in two-port open ducts is of fundamental importance in the acoustics, with wide applications ranging from noise control to duct sound mitigation.
Yong-xin Gao, Zheng-wei Li, B. Liang, Jing Yang, Jian-chun Cheng   +4 more
semanticscholar   +1 more source

Perfect Broadband Sound Absorption on a Graphene-Decorated Porous System with Dual-3D Structures.

ACS Applied Materials and Interfaces, 2022
Noise is a threat to human life quality and an invisible killer that causes many chronic diseases. The vast majority of porous sound absorbers are single-phased, which limits their sound absorption potential.
Silin Yu, Jingnan Ni, Zhiling Zhou, Shijie Xu, Dongting Li, Yong Li, J. Qiu   +6 more
semanticscholar   +1 more source

Enhancing of broadband sound absorption through soft matter.

Materials Horizons, 2021
This paper proposed a metamaterial design method that uses soft matter for constructing a unique soft acoustic boundary to effectively improve broadband sound absorption performance.
Fuyin Ma, Chang Wang, Yang Du, Zicai Zhu, Jiuhui Wu   +4 more
semanticscholar   +1 more source

Perfect sound absorption of Helmholtz resonators with embedded channels in petal shape

Journal of Applied Physics, 2021
The acoustic metamaterial in the form of a petal-shaped channel embedded Helmholtz resonator (P-CEHR) is proposed for perfect sound absorption. According to theoretical predictions, numerical simulations, and experiments, the P-CEHR achieves perfect low ...
Mingyu Duan, Chenlei Yu, W. He, F. Xin, T. Lu   +4 more
semanticscholar   +1 more source

Acoustic labyrinthine porous metamaterials for subwavelength low-frequency sound absorption

, 2021
An acoustic labyrinthine porous metamaterial (ALPM) or the so-called acoustic labyrinthine metaporous surface is designed for the subwavelength sound absorption by perforating folded slits in a porous material matrix.
Xuewei Liu, Mingyu Duan, Maolin Liu, F. Xin, Chuanzeng Zhang   +4 more
semanticscholar   +1 more source

Fatigue-resistant polyimide aerogels with hierarchical cellular structure for broadband frequency sound absorption and thermal insulation

Advanced Composites and Hybrid Materials, 2023
Xingyu Zhao, Kunpeng Ruan, Huaili Qiu, Xiao Zhong, Junwei Gu   +4 more
semanticscholar   +1 more source

A scalable high-porosity wood for sound absorption and thermal insulation

Nature Sustainability, 2023
Xinpeng Zhao, Yu Liu, Liuxian Zhao, Amirhossein Yazdkhasti, Yimin Mao, A. Siciliano, J. Dai, Shuangshuang Jing, Hua Xie, Zhihan Li, Shuaiming He, B. Clifford, Jianguo Li, Grace S. Chen, Emily Q. Wang, A. Desjarlais, D. Saloni, Miao Yu, J. Kośny, J. Zhu, Amy Gong, Liangbing Hu   +21 more
semanticscholar   +1 more source

Sound absorption polyimide composite aerogels for ancient architectures’ protection

Advanced Composites and Hybrid Materials, 2023
Xingyu Zhao, Yujia Hu, Xiuqi Xu, Mukun Li, Yixin Han, Shan Huang   +5 more
semanticscholar   +1 more source