Results 31 to 40 of about 1,533 (215)

Sound absorption performance analysis of anechoic coating under hydrostatic pressure considering cavity pressure

Zhongguo Jianchuan Yanjiu, 2022
ObjectivesAn underwater anechoic coating layer laid on the hull surface of a submarine is squeezed under the action of high hydrostatic pressure, changing its shape and material parameters, which has a great impact on sound absorption performance ...
Wenkai DONG, Meixia CHEN
doaj   +1 more source

A hybrid acoustic structure for low-frequency and broadband underwater sound absorption

Journal of Low Frequency Noise, Vibration and Active Control, 2022
The underwater anechoic coating with local resonant units is an effective method to achieve low-frequency sound absorption. However, the structure obtained in this way is not satisfactory in the sound absorption effect of mid-high frequency bands ...
Xinyu Jia, Guoyong Jin, Kangkang Shi, Chunyang Bu, Tiangui Ye   +4 more
doaj   +1 more source

Highly efficient underwater acoustic absorber designed by filled-microperforated plate-like structure: Aging and life prediction

Polymer Testing, 2023
The underwater sound absorption material for submarines should fulfill the demand for remarkable performance in medium-low frequency sound absorption at low thicknesses.
Jingjing Nan, Lingjie Yu, Mingjuan Du, Jiaguang Meng, Zijing Dong, Menghe Miao, Chao Zhi   +6 more
doaj   +1 more source

Sound Scattering and Its Reduction by a Janus Sphere Type [PDF]

, 2014
Copyright © 2014 Delyia Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Sound
Kim, D, Miloh, T, AVITAL, E
core   +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

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, David Peel, Joshua N. Smith, Renee P. Schoeman   +3 more
doaj   +1 more source

Design and Development of an acoustic positioning system for a cubic kilometre underwater neutrino telescope

, 2012
En los últimos años los telescopios submarinos de neutrinos han cobrado una mayor importancia ya que consisten en un nuevo y único instrumento para observar el Universo.
Larosa ., Giuseppina
core   +1 more source

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

Advanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh, Garrett F. Godshall, Glenn A. Spiering, Isabela Trindade Coutinho, Alejandro A. Rodriguez, Katherine J. Wood, Aiyana Gonzalez‐Arellano, Sadeq Malakooti, Stephanie L. Vivod, Robert B. Moore   +9 more
wiley   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

GATA4‐Driven Transcription of HtrA1 Promotes Cellular Senescence in Ménière's Disease and Age‐Related Audio‐Vestibular Dysfunction

Advanced Science, EarlyView.
This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang, Na Li, Yan Wang, Jing Zhang, Jiahui Liu, Lei Chen, Yongdong Song, Yurong Mu, Yuechen Han, Yafeng Lyu, Xiaofei Li, Hanyue Wang, Jing Wang, Yao Lu, Zhaomin Fan, Daogong Zhang, Haibo Wang   +16 more
wiley   +1 more source