Results 51 to 60 of about 3,227,807 (272)
Beam-Enabled Acoustic Link Establishment (BEALE) for underwater acoustic networks [PDF]
, 2013 textThere is growing interest in developing reliable, high performance, underwater acoustic networks (UWANs). However, the acoustic communication channel, with its slow sound propagation, high signal attenuation, and low bandwidth, presents significant ...
Watkins, Karen Piecara
core
Identity Authentication Method Based on Voiceprint Features of Communication Payloads
水下无人系统学报The security of underwater acoustic communication networks is an important guarantee for information sharing and cooperative operation of underwater communication.
Lu CHEN +4 more
doaj +1 more source
Multimodal Acoustic-RF Adaptive Routing Protocols for Underwater Wireless Sensor Networks
IEEE Access, 2019 In multi-function underwater wireless sensor networks (UWSNs), multiple applications share the same physical infrastructure to fully exploit network resources. Under such scenarios, diverse packets coexist in the same network which require differentiated
Hanjiang Luo +5 more
doaj +1 more source
Deep convolution stack for waveform in underwater acoustic target recognition
Scientific Reports, 2021 In underwater acoustic target recognition, deep learning methods have been proved to be effective on recognizing original signal waveform. Previous methods often utilize large convolutional kernels to extract features at the beginning of neural networks.
Shengzhao Tian +3 more
doaj +1 more source
Waveguide Photoactuators: Materials, Fabrication, and Applications
Advanced Robotics Research, EarlyView.Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source
Affordable underwater acoustic modems and their application in everyday life : a complete overview
, 2023 In the past, underwater acoustic modems were mainly used in Oil & Gas and military scenarios, that need long range transmissions with high power emitters often deployed in deep water.
Zorzi, Michele +3 more
core +1 more source
Advanced Robotics Research, EarlyView.A magnetic donut‐like millirobot is developed for label‐free pick‐and‐place of a tumor spheroid wirelessly controlled by a magnetic trap. Spheroids are important 3D multicellular culture systems that recapitulate key structural and functional features of native tissues.
Yue Gao +8 more
wiley +1 more source
Flexible Sensors for Robotics Tactile Perception: A Review
Advanced Robotics Research, EarlyView.Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley +1 more source
DCN-MAC: A Dynamic Channel Negotiation MAC Mechanism for Underwater Acoustic Sensor Networks
Sensors, 2020 In the design of media access control (MAC) mechanism in underwater acoustic sensor networks (UASNs), due to the propagation characteristic of low-speed underwater acoustic signals, it is necessary to solve the spatial−temporal uncertainty problem.
Yishan Su, Lijie Dong, Qiuling Yang
doaj +1 more source
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 +6 more
wiley +1 more source