Results 41 to 50 of about 1,357 (189)

Blue Laser Optical NOMA Communication Applied on Control Drone-to-Underwater Vehicle

Al-Iraqia Journal for Scientific Engineering Research
Today deep ocean life has not been discovered by humans including many secret world things to be explored. The researcher has focused on underwater optical wireless communications using various kinds of complex digital Signal processing most of them ...
Sameer Sami Hassan Al-Obaidi
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

Sub‐Terahertz Memristor Switches Using MoS2 by Liquid–Liquid Interface Assembly

Advanced Science, EarlyView.
This work introduces application‐ready sub‐terahertz memristor switches fabricated from electrochemically exfoliated MoS2 nanosheets assembled at a liquid–liquid interface. The devices exhibit robust unipolar resistive switching, low insertion loss, and high isolation across 10–110 GHz.
Tomás Mingates, Mohamed E. Ghatas, Jonas Deuermeier, Adam G. Kelly, Joseph Neilson, Jonathan N. Coleman, Luís Mendes, João C. Vaz, Sérgio Matos, Luca Lucci, Antonio Clemente, Zdeněk Sofer, Luís M. Pessoa, Elvira Fortunato, Rodrigo Martins, Asal Kiazadeh   +15 more
wiley   +1 more source

Design of Encoding Algorithm for Underwater Wireless Optical Communication Based on Spinal Code

Journal of Marine Science and Engineering
The marine environment is complex and variable, with the absorption and scattering effects of seawater and turbulence causing significant attenuation of received optical signals and introducing random jitter, which limits the communication range and ...
Xiaoyang Yu, Min Yu, Yun Zhou, Tianwei Chen   +3 more
doaj   +1 more source

Thin‐Film Transistor Based Active Taxel for Multimode Tactile Perception and Fused Processing

Advanced Science, EarlyView.
Skin serves as the largest‐area organ for human and embodied intelligent robots, providing tactile interaction. An active multimode fused (AMF) artificial skin is developed using standard TFT processes, featuring 2T‐1C taxels with optical and electrostatic capacitive receptors for cross‐modal sensing.
Sihao Wu, Zheng Zhou, Aoran Xu, Lutong Wang, Tingchen Yi, Chuanlin Sun, Haotong Zhu, Jiaqi Li, Junchen Dong, Li Zhou, Lifeng Liu, Yimao Cai, Dedong Han, Xing Zhang   +13 more
wiley   +1 more source

A Deep Echo State Network-Based Novel Signal Processing Approach for Underwater Wireless Optical Communication System with PAM and OFDM Signals

Photonics, 2023
Underwater wireless optical communication (UWOC) plays key role in the underwater wireless sensor networks (UWSNs), which have been widely employed for both scientific and commercial applications.
Kexin Wang, Yihong Gao, Mauro Dragone, Yvan Petillot, Xu Wang   +4 more
doaj   +1 more source

Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle

Advanced Science, EarlyView.
This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu, Dingyu Xu, Zhaobo Liu, Haitian Song, Qianqian Zhang, Junxiao Zhou, Xiewen Wen   +6 more
wiley   +1 more source

Class 1 Eye-Safe Formally Invisible Underwater Optical Wireless Communication System

IEEE Photonics Journal
When using underwater optical wireless communication in areas close to human habitats— such as shallow sea areas—specifications for highly-secure, large-capacity optical transceivers are required.
Ayumu Kariya, Keita Tanaka, Fumiya Kobori, Kiichiro Kuwahara, Shogo Hayashida, Takahiro Kodama   +5 more
doaj   +1 more source

Surface and Interfacial Engineering toward Durable Mechanically Coupled Flexible Electronics

Advanced Science, EarlyView.
This Review highlights how surface and interfacial engineering governs the reliability, durability, and functional stability of mechanically coupled flexible electronics. By integrating fundamental interfacial theory, failure mechanisms, multiscale engineering strategies, and representative applications, it provides a design‐oriented framework for ...
Qian Wang, Fangfang Dai, Wei Wu
wiley   +1 more source

Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

Technologies, 2019
The performance of an underwater optical wireless communication link is investigated by taking into account—for the first time and to the best of our knowledge—the simultaneous influence of the chromatic dispersion, the time jitter and the ...
George D. Roumelas, Hector E. Nistazakis, Argyris N. Stassinakis, George K. Varotsos, Andreas D. Tsigopoulos, George S. Tombras   +5 more
doaj   +1 more source