Results 71 to 80 of about 40,646 (281)

WaterPairs: a paired dataset for underwater image enhancement and underwater object detection

Intelligent Marine Technology and Systems
AbstractDue to its importance in marine engineering and aquatic robotics, underwater image enhancement works as a preprocessing step to improve the performance of high-level vision tasks such as underwater object detection and recognition. Although several studies exhibit that underwater image enhancement algorithms can boost the detection accuracy of ...
Long Chen, Xirui Dong, Yunzhou Xie, Sen Wang   +3 more
openaire   +1 more source

Oxygen Supply of Islets of Langerhans by Photosynthetically Active Microalgae in Bioprinted Co‐Cultures Maintains Their Function in a Hypoxic Environment

Advanced Healthcare Materials, EarlyView.
This study developed a bioprinted co‐culture system embedding rat pancreatic islets and Scenedesmus sp. microalgae spatially defined in close vicinity. Red light was found optimal to ensure microalgal photosynthesis while maintaining islet viability and functionality. A tailored co‐culture medium supported both cell types.
Finn Dani, Sarah Duin, Ashwini Rahul Akkineni, Susann Lehmann, Barbara Ludwig, Michael Kühl, Michael Gelinsky, Anja Lode   +7 more
wiley   +1 more source

Modulation Classification of Underwater Communication Signals Based on Channel Estimation

Journal of Marine Science and Engineering
Classifying modulated signals for non-cooperative underwater acoustic communication is challenging due to signal distortion caused by fading and multipath effects in the underwater acoustic channel.
Xiaodan Yang, Zulin Wang, Tongsheng Shen, Dexin Zhao   +3 more
doaj   +1 more source

Controllable Dynamic Mechanical Cell Stimulation using Magnetically Actuated Artificial Cilia

Advanced Healthcare Materials, EarlyView.
This paper introduces a platform based on magnetic artificial cilia for providing controllable dynamic mechanical stimulation to single cells, suitable for investigating large cell populations and enabling live cell imaging. Proof‐of‐principle experiments show that cell morphology is strongly influenced by the artificial cilia, that cellular forces can
Roel Kooi, Tanveer Ul Islam, Oscar M.J.A. Stassen, Naomie Amsing, Jan de Boer, Jaap M.J. den Toonder   +5 more
wiley   +1 more source

A Physiological Microfluidic Blood–Brain‐Barrier Model for In Vitro Study of Nanoparticle Trafficking and Accumulation

Advanced Healthcare Materials, EarlyView.
A human microfluidic blood‐brain barrier (mBBB) model enables spatially resolved comparison of nanoparticle trafficking. Extracellular vesicles (EVs), liposomes, and nanoplastics exhibit distinct transport and disruption behaviors, revealing that membrane composition and uptake pathways govern BBB interaction.
Bryan B. Nguyen, Neona M. Lowe, Sophia Kellogg, Kuan‐Wei Huang, Hannah O'Toole, Elizabeth J. Hale, Venktesh S. Shirure, Bhupinder S. Shergill, Steven C. George, Randy P. Carney   +9 more
wiley   +1 more source

Tank dataset: An underwater multi-sensor dataset for SLAM evaluation

The International Journal of Robotics Research
Underwater visual Simultaneous Localization and Mapping (SLAM) is essential for autonomous underwater navigation and close-range underwater inspection. However, the turbid and low-light conditions common underwater severely limit visibility and cause motion blurring, posing significant open challenges for visual SLAM approaches deployed ...
Shida Xu, Jonatan Scharff Willners, Joshua Roe, Sean Katagiri, Tomasz Luczynski, Yvan Petillot, Sen Wang   +6 more
openaire   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

RUSNet: Robust fish segmentation in underwater videos based on adaptive selection of optical flow

Frontiers in Marine Science
Fish segmentation in underwater videos can be used to accurately determine the silhouette size of fish objects, which provides key information for fish population monitoring and fishery resources survey.
Peng Zhang, Peng Zhang, Peng Zhang, Peng Zhang, Zongyi Yang, Zongyi Yang, Zongyi Yang, Zongyi Yang, Hong Yu, Hong Yu, Hong Yu, Hong Yu, Wan Tu, Wan Tu, Wan Tu, Wan Tu, Chencheng Gao, Chencheng Gao, Chencheng Gao, Chencheng Gao, Yue Wang, Yue Wang, Yue Wang, Yue Wang   +23 more
doaj   +1 more source

Underwater object detection and datasets: a survey

Intelligent Marine Technology and Systems
AbstractThe rapidly growing exploitation and utilization of marine resources by humans has sparked considerable interest in underwater object detection tasks. Targets captured in underwater environments differ significantly from those captured in general images owing to various factors, such as water turbidity, complex background conditions, and ...
Muwei Jian, Nan Yang, Chen Tao, Huixiang Zhi, Hanjiang Luo   +4 more
openaire   +1 more source

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source