Results 71 to 80 of about 7,251 (248)

On Channel Codes for Short Underwater Messages

Information, 2020
Acoustic underwater communication is a challenging task. For a reliable transmission, not only good channel estimation and equalization, but also strong error correcting codes are needed.
Melanie Falk, Gerhard Bauch, Ivor Nissen
doaj   +1 more source

Laser-based visible light communications and underwater wireless optical communications: a device perspective

, 2019
High-speed visible light communications (VLC) has been identified at an essential part of communication technology for 5G network. VLC offers the unique advantages of unregulated and secure channels, free of EM interference.
Alkhazragi,Omar, Ng, Tien Khee, Ooi, Boon S., Sun, Xiaobin, Guo, Yujian, Shen, Chao   +5 more
core   +1 more source

When Nature Counts: Corporate Biodiversity Attention and Access to Bank Finance

Business Strategy and the Environment, EarlyView.
ABSTRACT This paper investigates whether corporate attention to biodiversity influences firms' access to bank loans, an overlooked question in the emerging biodiversity–finance literature. Using a novel, text‐based measure constructed from 446 biodiversity‐related keywords and applied to Chinese A‐share listed firms from 2000 to 2023, we show that ...
Ruxiao Li, Bo Zhang, Zhang‐Hangjian Chen, Hafiz Hoque   +3 more
wiley   +1 more source

Performance Analysis of Sweep-Spread Carrier (S2C) Modulation for Underwater Communications

, 2022
In the last decades, underwater acoustic communications have seen a growing development with a variety of research as well as commercial applications, dealing with channel distortions, multipath and Doppler effects typical underwater channels.
Petrioli C., Mangione S., Tinnirello I., Croce D., Baldone C.   +4 more
core   +1 more source

Organic Photodetectors and Sensors for Low‐Light and Infrared Applications

Electron, EarlyView.
This mini review highlights recent advances in organic photodetectors and sensors for low‐light and infrared applications, emphasizing molecular design, device architectures, and interface engineering that improve charge transport, detectivity, speed, and spectral selectivity.
Swarup Biswas, Hyeok Kim
wiley   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Underwater service specific channel selection scheme with mmWave and THz bands

Discover Computing
The main aim of Internet of Underwater Things (IoUT) is to grow a global network of smart underwater-interconnected devices. The development of IoUT empowers to monitor massive unexplored areas in water.
Preksha Jain, Akhil Gupta, Nitin Rakesh
doaj   +1 more source

Intrinsic chiroptical responsivity in self‐powered organic photodiodes for polarization‐tunable optical convolution

InfoMat, EarlyView.
Self‐powered chiral organic photodiodes function as polarization‐sensitive convolutional filters for circularly polarized light‐driven optical convolutional neural networks. This conceptually innovative architecture enables dynamic weight modulation, bias‐free operation, and exceptional noise resilience, boosting feature extraction fidelity from 0.15 ...
Lixuan Liu, Weilong Huang, Feihong Zhu, Yongjie Cai, Xiaolong Li, Yang Yang, Xiao Ma, Zhixiang Wei, Wei Chen, Huipeng Chen   +9 more
wiley   +1 more source

Doppler Estimation and Correction for JANUS Underwater Communications

, 2020
In recent years, underwater communications have seen a growing interest pushed by marine research, oceanography, marine commercial operations, offshore oil industry and defense applications. Generally, underwater communications employ audio signals which
Concetta Baldone, Giovanni Ettore Galioto, Chiara Petrioli, Petrioli C., Ilenia Tinnirello, Tinnirello I., Galioto G. E., Croce D., Baldone C., Daniele Croce   +9 more
core   +1 more source

Application of Magnesium Metal as Anode in Batteries

MetalMat, EarlyView.
When used as an anode, magnesium metal offers several advantages, including a high volumetric capacity, environmental friendliness, abundant natural reserves, and a low tendency for dendrite growth. Battery types employing magnesium as the anode include rechargeable magnesium‐ion batteries, aqueous magnesium‐ion batteries, magnesium–air batteries, and ...
Yuanjie Zhang, Dichang Guan, Guorong Hu, Zhongdong Peng, Yanbing Cao, Ke Du   +5 more
wiley   +1 more source