Results 21 to 30 of about 2,160 (243)

Design and research on impact resistance characteristics of vector hydrophone application platform [PDF]

open access: yesMATEC Web of Conferences, 2019
On the basis of the analysis of the impact resistance of the application platform of the vector hydrophone is analysed , this paper designed single-stage and two-stage vibration isolation system based on rubber damper by using its characteristics of ...
Zhao Tianji, Chen Hongjuan
doaj   +1 more source

Multi-Branch Deep Residual Network for Single Image Super-Resolution

open access: yesAlgorithms, 2018
Recently, algorithms based on the deep neural networks and residual networks have been applied for super-resolution and exhibited excellent performance.
Peng Liu, Ying Hong, Yan Liu
doaj   +1 more source

Acoustic Shooting and Bounce Ray Method for Calculating Echoes of Complex Underwater Targets

open access: yesApplied Sciences, 2022
The acoustic scattering characteristics of a target are of great significance to the design of underwater acoustic detection systems. With the improvement in underwater weapon detection ability, the precision and accuracy of underwater target echo ...
Gang Zhao   +4 more
doaj   +1 more source

Modeling Techniques for Underwater Acoustic Scattering and Propagation (Including 3D Effects)

open access: yesJournal of Marine Science and Engineering, 2022
Almost three years have passed since the publication of the first Special Issue on three-dimensional underwater acoustics in 2019 [...]
Pavel Petrov   +2 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

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

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

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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