Results 31 to 40 of about 22,596 (292)

Use of baited remote underwater video (BRUV) and motion analysis for studying the impacts of underwater noise upon free ranging fish and implications for marine energy management [PDF]

open access: yes, 2016
© 2016 Elsevier Ltd Free-ranging individual fish were observed using a baited remote underwater video (BRUV) system during sound playback experiments.
Elliott, Michael   +2 more
core   +1 more source

Low cost underwater acoustic localization

open access: yes, 2017
Over the course of the last decade, the cost of marine robotic platforms has significantly decreased. In part this has lowered the barriers to entry of exploring and monitoring larger areas of the earth's oceans.
Goumas, Nicholas   +3 more
core   +1 more source

Horizontal Detection Range Estimation of Deep-Sea Acoustic Shadow Area Based on Vertical Phased Emission Array

open access: yesJournal of Marine Science and Engineering
To scan the horizontal range of the deep-sea shadow zone with high accuracy and efficiency, enabling active target detection, a horizontal detection range estimation method based on phased sound focusing technology is presented.
Naibin Chen   +5 more
doaj   +1 more source

Analysis of Near-Capacity Iterative Decoding Schemes for Wireless Communication Using EXIT Charts

open access: yesIEEE Access, 2020
This article proposes and compares the performance of three flexible and bandwidth efficient transceivers. The terminology of Over-Complete Mapping (OCM) is introduced in the first two schemes.
Nasru Minallah   +6 more
doaj   +1 more source

Sound absorbing properties of spiral metasurfaces inspired by micro-perforated plates

open access: yesTheoretical and Applied Mechanics Letters, 2023
As a kind of classical low-frequency sound-absorbing material, the microperforated plate (MPP) has been widely used. Here, we inspired by the sound absorption mechanism of the MPP, a spiral metasurface (SM) is designed and the analytical solution of ...
Han Zhang   +6 more
doaj   +1 more source

Valley-projected edge modes observed in underwater sonic crystals

open access: yes, 2018
Recently, the topological physics in acoustics has been attracting much attention. However, all the studies are aimed to elastic or airborne sound systems.
Cai, Xiangxi   +6 more
core   +1 more source

Airborne sound propagation over sea during offshore wind farm piling [PDF]

open access: yes, 2014
Offshore piling for wind farm construction has attracted a lot of attention in recent years due to the extremely high noise emission levels associated with such operations.
Botteldooren, Dick   +2 more
core   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Source localization in shallow ocean using a deep learning approach with range-dependent sound speed profile modeling [PDF]

open access: yesJASA Express Letters
Model-based deep learning approaches provide an alternative scheme to address the problem of the shortage of training data. However, performance degradation caused by sound speed profile (SSP) mismatch remains a critical challenge, particularly in ...
Jing Guo, Juan Zeng
doaj   +1 more source

Underwater Acoustic Research Trends with Machine Learning: Ocean Parameter Inversion Applications

open access: yes한국해양공학회지, 2020
Underwater acoustics, which is the study of the phenomena related to sound waves in water, has been applied mainly in research on the use of sound navigation and range (SONAR) systems for communication, target detection, investigation of marine resources
Haesang Yang   +3 more
doaj   +1 more source

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