Results 121 to 130 of about 2,485,601 (152)
Some of the next articles are maybe not open access.
Reconfigurable modular acoustic metamaterial for broadband sound absorption
Mechanical Systems and Signal ProcessingZhongjian Mei
exaly +2 more sources
Journal of Vibration and Control, 2022
This paper applies topology optimization in combination with a genetic algorithm to design a coating structure for sound absorption in underwater applications. The coating is designed with a high broadband acoustic absorption of 0.94 ranging from 1 to 10
Zhaoyu Li +3 more
semanticscholar +1 more source
This paper applies topology optimization in combination with a genetic algorithm to design a coating structure for sound absorption in underwater applications. The coating is designed with a high broadband acoustic absorption of 0.94 ranging from 1 to 10
Zhaoyu Li +3 more
semanticscholar +1 more source
Corn husk for noise reduction: Robust acoustic absorption and reduced thickness
Applied Acoustics, 2018Xiong Yan, Xiaoning Tang
exaly +2 more sources
Chemical Engineering Journal, 2021
At high temperatures, lightweight ceramic and aerogel materials have serious problems such as volume shrinkage, increased density, loss of flexibility, and decreased thermal insulation performances.
Yongshuai Xie +6 more
semanticscholar +1 more source
At high temperatures, lightweight ceramic and aerogel materials have serious problems such as volume shrinkage, increased density, loss of flexibility, and decreased thermal insulation performances.
Yongshuai Xie +6 more
semanticscholar +1 more source
Rice plant waste reinforced polyurethane composites for use as the acoustic absorption material
, 2021Over the last decade, with the development of technology, studies to reduce noise are increasing rapidly. It is known that flexible polyurethane foams, which are one of the most preferred materials in sound insulation, can be achieved even more superior ...
Hilal Olcay, Hilal Olcay, E. Koçak
semanticscholar +1 more source
, 2020
Aiming at poor efficiency of the traditional materials in low-mid frequency sound absorption and its narrow bandwidth, we present an ultra-broadband acoustic metamaterial that can achieve near-perfect continuous absorption within 380 Hz–3600 Hz with a ...
C. Liu, J. Wu, Zhengrui Yang, Fuyin Ma
semanticscholar +1 more source
Aiming at poor efficiency of the traditional materials in low-mid frequency sound absorption and its narrow bandwidth, we present an ultra-broadband acoustic metamaterial that can achieve near-perfect continuous absorption within 380 Hz–3600 Hz with a ...
C. Liu, J. Wu, Zhengrui Yang, Fuyin Ma
semanticscholar +1 more source
Perfect acoustic absorption by subwavelength metaporous composite
Applied Physics Letters, 2019We present a design of a low-frequency perfect acoustic absorption metaporous composite with frequency tunability and the insensitivity to the incident angle based on a critical coupling mechanism.
Yukun Zhou, Dongting Li, Yong Li, T. Hao
semanticscholar +1 more source
Perforated closed-cell aluminium foam for acoustic absorption
, 2020Closed-cell metal foams are lightweight and durable materials resistant to high temperature and harsh conditions, but due to their fully closed porosity they are poor airborne sound absorbers.
K. C. Opiela +3 more
semanticscholar +1 more source
Laser textured GFRP superhydrophobic surface as an underwater acoustic absorption metasurface
Applications of Surface Science, 2019Underwater acoustic absorption metasurfaces (UAAMs), featured with artificial periodic unit cells as acoustic micro-absorbers, are crucial for the enhancement of the underwater stealth, energy transition, sonar detection, etc.
Guang Feng +6 more
semanticscholar +1 more source
Engineering Coiling‐Up Space Metasurfaces for Broadband Low‐Frequency Acoustic Absorption
Physica Status Solidi (a), 2019Acoustic metasurfaces based on microperforated panels and coplanar spiral tubes are proposed to realize acoustic absorption in the low‐frequency range, which are composed of holes and an in‐plane coiling‐up channels.
Shuang Chen +6 more
semanticscholar +1 more source