Results 31 to 40 of about 1,287 (195)

Underwater optical wireless communications, networking, and localization: A survey [PDF]

Ad Hoc Networks, 2019
Underwater wireless communications can be carried out through acoustic, radio frequency (RF), and optical waves. Compared to its bandwidth limited acoustic and RF counterparts, underwater optical wireless communications (UOWCs) can support higher data rates at low latency levels. However, severe aquatic channel conditions (e.g., absorption, scattering,
Nasir Saeed, Abdulkadir Celik, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini   +3 more
openaire   +3 more sources

Boron‐Doped Nano‐Crystalline Coated Carbon Fibers for Phasic Dopamine Sensing

Advanced Healthcare Materials, EarlyView.
This uniform coating presents a mix of graphitic and diamond‐like carbon to create a mechanically and electrically robust alternative for the electrochemical detection of dopamine. The electrodes in this work possess the equivalent sensitivity to the state‐of‐the‐art FSCV dopamine detecting electrodes, whilst demonstrating an ability to withstand ...
Simon J. Higham, Juan M. Rojas Cabrera, Youngjong Kwak, Lydia Hong, Andre Chambers, Athavan Nadarajah, Sorel E. De Leon, Young Jun Jung, Negin Jalilinejad, Charles Blaha, Dong Pyo Jang, Yoonbae Oh, Kendall Lee, Alastair Stacey, Shaun L. Cloherty, Michael R. Ibbotson, David J. Garrett, Steven Prawer, Hojin Shin, Wei Tong   +19 more
wiley   +1 more source

Underwater Drone-Enabled Wireless Communication Systems for Smart Marine Communications: A Study of Enabling Technologies, Opportunities, and Challenges

Drones
Underwater drones such as autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs) are revolutionizing underwater operations and are essential for advanced marine applications like environmental monitoring, deep-sea exploration, and ...
Sarun Duangsuwan, Katanyoo Klubsuwan
doaj   +1 more source

A Self-Powered Transparent Photodetector Based on Detached Vertical (In,Ga)N Nanowires with 360° Omnidirectional Detection for Underwater Wireless Optical Communication

Nanomaterials, 2021
Underwater wireless optical communication (UWOC) is a wireless communication technology using visible light to transmit data in an underwater environment, which has wide applications.
Jianya Zhang, Min Jiang, Lifeng Bian, Dongmin Wu, Hua Qin, Wenxian Yang, Yukun Zhao, Yuanyuan Wu, Min Zhou, Shulong Lu   +9 more
doaj   +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

Research on the Optical Receiving Performance of Underwater Wireless Optical Communication System Based on Fresnel Lens

Photonics
In response to the practical demands of high rate, long distance, low cost and miniaturized equipment for underwater wireless communication, an underwater wireless optical communication experimental system with Fresnel lenses as optical receiving ...
Ya Zhao, Shixiang Hong, Zhanqi Zhang, Xiaoxuan Zhu, Peng Zhang   +4 more
doaj   +1 more source

A Salinity-Impact Analysis of Polarization Division Multiplexing-Based Underwater Optical Wireless Communication System with High-Speed Data Transmission

Journal of Sensor and Actuator Networks, 2023
The majority of the Earth’s surface is covered by water, with oceans holding approximately 97% of this water and serving as the lifeblood of our planet.
Sushank Chaudhary, Abhishek Sharma, Sunita Khichar, Shashi Shah, Rizwan Ullah, Amir Parnianifard, Lunchakorn Wuttisittikulkij   +6 more
doaj   +1 more source

Rewriting Polymer Fate via Chemomechanical Coupling

Advanced Materials, EarlyView.
This work introduces a life‐like “living” polymer platform that can grow, degrow, and reprogram its properties after fabrication. By integrating mass transport, reversible polymerization, and controlled catalysis, the material achieves on‐demand changes in size, shape, and mechanical properties.
Jiahe Huang, Haohui Zhang, Jiehao Chen, Xuelin Sui, Febby Krisnadi, Dongjing He, Huajian Ji, Will R. Gutekunst, Michael D. Dickey, Yuhang Hu   +9 more
wiley   +1 more source

Performance Analysis of a Dual-Hop FSO–Vertical UOWC Link for Seamless Air-to-Underwater Connectivity

IEEE Open Journal of the Communications Society
In this paper, an analytical model is proposed for a dual-hop Free Space Optical (FSO) and vertical Underwater Optical Wireless Communication (UOWC) system designed to achieve seamless connectivity between air and underwater environments.
Savidhan Shetty C S, Praveen Kumar, Ramavath Prasad Naik, G. Saravanan, G. D. Goutham Simha   +4 more
doaj   +1 more source

A Testbed for Investigating the Effect of Salinity and Turbidity in the Red Sea on White-LED-Based Underwater Wireless Communication

Applied Sciences, 2022
Several industrial and scientific underwater applications require high-speed wireless connectivity. Acoustic communications have low data rates and high latency, whereas attenuation in seawater severely limits radio frequency communications.
Ayshah S. Alatawi
doaj   +1 more source