Results 211 to 220 of about 142,224 (317)

Enhancing underwater sensor network security using QKD-enabled acoustic-optical hybrid communication. [PDF]

Sci Rep
Rajnarayanan S, Kathirvel Murugan T, Govindaraj L, Gladius Theodore Solomon S, Aashik Fazuludeen M.   +4 more
europepmc   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

GAN-based underwater image enhancement and scene classification using transfer learning. [PDF]

PLoS One
Homoud A, Das S.
europepmc   +1 more source

Corals and Reef‐Dwelling Fish Regulate Carbon Storage and Cycling Processes in Coral Reef Ecosystems

Advanced Science, EarlyView.
Coral reefs are biodiversity hotspots, yet their role in carbon storage and cycling remains poorly understood. Using field surveys and modeling in the South China Sea, we reveal the overlooked potential of carbon storage in reef ecosystems and how reef fish, corals, and surface sediment jointly shape reef carbon reservoirs.
Yiting Chen, Wenliang Zhou, Lan Qiu, Han Lai, Mingpan Huang, Qian Li, Wen Yu, Pei‐Yuan Qian, Fuwen Wei   +8 more
wiley   +1 more source

A Self-Healing Magnetoelectric Sensor with Pain Sensing for Underwater Soft Electronics. [PDF]

Adv Mater
Zhang X, Zhou J, Chen P, Wang X, Pang EYL, Su B, Tan YJ.   +6 more
europepmc   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Exploiting Phase Memory in Multicarrier Waveforms for Robust Underwater Acoustic Communication. [PDF]

Sensors (Basel)
Tasadduq I, Murad M, Felemban E.
europepmc   +1 more source

Research on Underwater Acoustic Communication and Underwater Positioning Systems for Underwater Drone Control

Research on Underwater Acoustic Communication and Underwater Positioning Systems for Underwater Drone Control
Recent advances in underwater applications, such as ocean remote operations and network sensors, have created a critical need for high data-rate and robust underwater wireless communications. Due to significant attenuation of electromagnetic or radio waves in water, many applications require mid- to long-range underwater communications, which can only ...
openaire  

Printable Conductive Hydrogels for Electrochemical Biosensing and Soft Bioelectronic Interfaces

Advanced Science, EarlyView.
Flexible, conductive hydrogels that integrate printability, mechanical tunability, biocompatibility, and electronic performance remain challenging to achieve. Here, we develop 3D‐printable poly(ethylene glycol)–poly(pyrrole)‐ hydrogels with tissue‐like mechanics, high cytocompatibility, and robust electrochemical function.
Lukas Hein, Renan Colucci, Xin Wei, Tsvetomir Ivanov, Katharina Landfester, Ulrike Kraft, Maria Villiou   +6 more
wiley   +1 more source

YOLO-MFD: a multi-scale feature and dynamic head framework for prefabricated shoreline underwater object detection. [PDF]

Sci Rep
Gang Y, Li T, Li S, Shang Y.
europepmc   +1 more source