Results 21 to 30 of about 1,253 (193)
Journal of Marine Science and Engineering, 2023 To further improve the low-frequency broadband sound absorption capability of the underwater anechoic layer (UAL) on the surface of marine equipment, a novel sound absorption structure with cavities (NSSC) is designed by adding resonators and honeycombs ...
Jinshun Hu +5 more
doaj +1 more source
Investigation of Parameters Affecting Underwater Communication Channel [PDF]
Журнал інженерних наук, 2020 Underwater communication has become a widely studied area in recent years and showed great potential to be an area of research. Acoustic communication is often preferred in underwater communication due to its suitability for an underwater diffusion ...
Aydin S., Onur T. O.
doaj +1 more source
Severe Hearing Loss in the World's First Successfully Captive-Born Yangtze Finless Porpoise: Impact of High Underwater Sound Exposure and Congenital Hearing Disorders. [PDF]
Integr ZoolThe audiogram of the world's first successfully captive‐born Yangtze finless porpoise was on average 40 dB higher than conspecifics. Congenital hearing disorders and noise exposure may be the primary cause of porpoise's hearing loss. ABSTRACT Aquariums globally have seen significant growth in recent decades.
Wang Z, Akamatsu T, Wang K, Wang D.
europepmc +2 more sources
Journal of Marine Science and Engineering, 2023 To address the problem that anechoic coatings frequently fall off from modern submersible hulls and are detrimental to the realization of underwater acoustic stealth, this paper focuses on the broadband sound absorbing of acoustic coverings in debonding ...
Zhifu Zhang +5 more
doaj +1 more source
Marine Acoustic Zones of Australia
Journal of Marine Science and Engineering, 2021 Underwater sound is modelled and mapped for purposes ranging from localised environmental impact assessments of individual offshore developments to large-scale marine spatial planning.
Christine Erbe +3 more
doaj +1 more source
Shock and Vibration, 2021 Viscoelastic material acoustic coating plays an important role in noise and vibration control of underwater equipment. The dynamic mechanical properties of the viscoelastic material have a direct effect on the sound absorption performance of the acoustic
Zhuhui Luo +3 more
doaj +1 more source
Results in Physics, 2019 Although the conventional locally resonant acoustic metamaterials (LRAMs) have shown better sound absorption performance in the low frequency band, the effective frequency range of the sound absorption performance is quite narrow relatively.
Kangkang Shi +4 more
doaj +1 more source
水下无人系统学报The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of ...
Donghai ZENG +5 more
doaj +1 more source
Bioprinting Organs—Science or Fiction?—A Review From Students to Students
Advanced Healthcare Materials, EarlyView.Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu +18 more
wiley +1 more source
Advanced Materials, EarlyView.A flexible and lightweight acoustic metamaterial composed of air cavities encased in polydimethylsiloxane (PDMS) is introduced to enhance ultrasound power transfer. The metamaterial leverages the strong reflectivity of air cavity boundaries to concentrate incoming ultrasound, thereby improving the performance of piezoelectric energy harvesters ...
Hyung‐Suk Kwon +4 more
wiley +1 more source