Results 91 to 100 of about 1,253 (193)

Mechanisms and design of composite sandwich structures for underwater sound absorption

Journal of Physics: Conference Series
Abstract This research focuses on enhancing the acoustic properties of underwater composite sandwich structures. Initially, a comparison is made between the acoustic performance of composite sandwich structures with traditional symmetric and asymmetric face sheets.
Zhenkai Yin, Yejin Wei, Jie Zhong, Yao Sun, Jingfan Yang, Wenzheng Zhang, Honggang Zhao   +6 more
openaire   +1 more source

Sound Absorption of the Water Column and Its Calibration for Multibeam Echosounder Backscattered Mapping in the East Sea of Korea

Applied Sciences
Multibeam echosounder (MBES) backscatter data are influenced by underwater sound absorption, which is dependent on environmental parameters such as temperature, salinity, and depth.
Seung-Uk Im, Cheong-Ah Lee, Moonsoo Lim, Changsoo Kim, Dong-Guk Paeng   +4 more
doaj   +1 more source

Sound absorption coefficient measurement and correction of acoustic coating based on impedance experiment

Zhongguo Jianchuan Yanjiu
ObjectiveAs specific and demanding requirements are imposed by measuring the impedance of the anechoic coatings on the hull surface of an underwater vehicle using the traditional water-filled tube experiment, a method of sound absorption coefficient ...
Fan ZHANG, Chidong CHE, Shengjian GU, Zijie LI   +3 more
doaj   +1 more source

Rayleigh beam underwater metamaterial for low-frequency and broadband sound absorption

Materials Today Communications, 2023
Yu Liu, Boya Xiao, Kaiqi Yan, Jinju Liu, Meng Chen, Heng Jiang, Yuren Wang   +6 more
openaire   +1 more source

Mechanism and Optimization of Acoustic Absorption of an Underwater Lattice-Reinforced Meta-Absorber

Journal of Marine Science and Engineering
Conventional rubber-based absorbers containing cavities exhibit a decline in acoustic absorption as hydrostatic pressure rises. To improve sound absorption performance under hydrostatic pressure, a lattice-reinforced meta-absorber (LRMA) is proposed in ...
Zhenkai Yin, Honggang Zhao, Wenzheng Zhang, Yao Sun, Zihao Liu, Jingfan Yang, Jihong Wen   +6 more
doaj   +1 more source

Design and Acoustic Performance Research of Underwater Acoustic Absorption Metamaterials. [PDF]

Materials (Basel)
Dong G, Wu F.
europepmc   +1 more source

The Modern Numerical and Experimental Methods for the Sound Absorbing Characteristics of Dissipative Sound Absorbing Materials: A Review. [PDF]

Materials (Basel)
Liu R, Zhang Z, Zheng X.
europepmc   +1 more source

Covert underwater communication through cepstrum modulation mimicking Pseudorca crassidens whistles using machine learning. [PDF]

Sci Rep
Bilal M, Zuberi HH, Jaffar A, Riaz W, Khan MA, Alharbi A, Miyajan A, Liu S.   +7 more
europepmc   +1 more source

A Reproducible Method to Evaluate Sublethal Acoustic Stress in Aquatic Invertebrates Using Oxidative Biomarkers. [PDF]

Bio Protoc
Mitton FM, Snitman SM, Ceraulo M, Buscaino G, Sal Moyano MP.   +4 more
europepmc   +1 more source

Power management and performance optimization of underwater wireless sensor networks based on MARL. [PDF]

PLoS One
Guan J.
europepmc   +1 more source