Results 51 to 60 of about 2,896,576 (244)

Report on Air Launched Autonomous Underwater Vehicles [PDF]

, 2011
The feasibility of Autonomous Underwater Vehicles (AUVs) being launched from aircraftwas funded through the NERC Oceans 2025 programme, investigating a more economicalof seeding wide swaths of ocean with sensors carrying out wide scale, synoptic ...
Stevenson, P.
core   +1 more source

Edge-Enhanced CrackNet for Underwater Crack Detection in Concrete Dams

Applied Sciences
Underwater crack detection in dam structures is of significant importance to ensure structural safety, assess operational conditions, and prevent potential disasters. Traditional crack detection methods face various limitations when applied to underwater
Xiaobian Wu, Weibo Zhang, Guangze Shen, Jinbao Sheng   +3 more
doaj   +1 more source

Bioinspired Co‐Assembly Enables Multiscale Architected Hydrogels for 3D Printing With Integrated Antibacterial and Bioactive Functions

Advanced Functional Materials, EarlyView.
A multicomponent supramolecular hydrogel integrating cell‐adhesive and antibacterial peptides within an alginate‐cellulose nanofibril matrix is developed. Peptide co‐assembly simultaneously strengthens the hydrogel network, improves extrusion printability, and imparts cell‐adhesive and antibacterial functions, offering a versatile platform for ...
Mor Tsuriano‐Zernichov, Francesca Netti, Sigal Rencus‐Lazar, Moran Aviv, Lihi Adler‐Abramovich   +4 more
wiley   +1 more source

Research on multi-scale fusion image enhancement and improved YOLOv5s lightweight ROV underwater target detection method

Scientific Reports
Underwater target detection technology is very important for Marine resources detection and underwater environment perception. The problems of low-quality underwater images, a large amount of calculation, and low accuracy of target detection models still
Yongfa Mi, Mingshan Chi, Qiang Zhang, Pengjie Liu   +3 more
doaj   +1 more source

Refining features for underwater object detection at the frequency level

Frontiers in Marine Science
In recent years, underwater object detection (UOD) has become a prominent research area in the computer vision community. However, existing UOD approaches are still vulnerable to underwater environments, which mainly include light scattering and color ...
Wenling Wang, Zhibin Yu, Zhibin Yu, Mengxing Huang   +3 more
doaj   +1 more source

A Deep Learning Model Applied to Optical Image Target Detection and Recognition for the Identification of Underwater Biostructures

Machines, 2022
Objective: We propose a deep-learning-based underwater target detection system that can effectively solve the problem of underwater optical image target detection and recognition. Methods: In this paper, based on the depth of the underwater optical image
Huilin Ge, Yuewei Dai, Zhiyu Zhu, Runbang Liu   +3 more
doaj   +1 more source

Mono‐Material Polydisulfides for Pressure Sensitive Adhesive Tapes With Closed‐Loop Recyclability

Advanced Functional Materials, EarlyView.
A high‐performance pressure‐sensitive adhesive (PSA) tape is developed where both the adhesive layer and plastic backing layer can be recycled back to monomer in a closed‐loop cycle. Both layers of the tape are composed of analogous polydisulfide copolymers using only two unique monomers, thus giving it a mono‐material design and enabling recycling of ...
Woojung Ham, Tyler M. Witt, Charles M. Hui, Joshua C. Worch   +3 more
wiley   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Underwater Object Detection Method with Enhanced Wavelet Transform Features

水下无人系统学报
The complex and unique underwater environment results in low-quality underwater images, characterized by low contrast, blurriness, and underwater degradation, which significantly affects the capabilities of underwater object detection.
Nan WEI, Wankou YANG, Weijie ZHOU, Longyu JIANG   +3 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source