Results 91 to 100 of about 873,936 (270)

Hardware implementation of MBFSK modulation technique for underwater wireless communications [PDF]

International Journal of Electronics and Telecommunications
The underwater communication technique based on MBFSK (Multiple Binary Frequency Shift Keying) modulation is used in challenging propagation conditions.
Rafał Pilarski, Łukasz Wojewódka
doaj   +1 more source

Experimental testbed for seawater channel characterization

, 2016
Shallow seawaters are problematic for acoustic and optical communications. Sensor networks based on electromagnetic (EM) communications are evaluated in this environment.
Cardona, Laura, Dorta-Naranjo, Pablo, Hernández, J. Joaquin, Jiménez, Eugenio, Mena, Pablo, Pérez, Marina, Pérez-Álvarez, Iván, Quintana, Gara, Zazo, Santiago   +8 more
core   +1 more source

Halide perovskites in wide‐spectrum photodetection

Bulletin of the Korean Chemical Society, EarlyView.
Recent advances in perovskite‐based photodetectors (PPDs), phototransistors, and photoconductors are technically discussed in this review. Moreover, the mechanism behind different harvesting processes in perovskite following the energy of photons is explained, where the gamma or x‐rays are ionizing.
Somayeh Gholipour, Reza Rahighi, Mohammad Panahi, Muhammad Naufal Lintangpradipto, Reza Ghayoor, Michael Saliba   +5 more
wiley   +1 more source

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble, Aditi De, Seung Joo Jang, Arun Karmkar, Venkatachalam Vinothkumar, Niyaz Mujawar, Subrata Kundu, Tae Hyun Kim   +7 more
wiley   +1 more source

An environmental equalizer for underwater acoustic communications Tested at Hydralab III [PDF]

, 2010
It is known that small changes in source and receiver locations can cause significant changes in underwater acoustic channel impulse responses. At HYDRALAB III an underwater acoustic experiment was conducted to show that a source depth-shift causes a ...
Ijaz, S., Jesus, S. M., Mertins, C., Silva, A., Zabel, F.   +4 more
core  

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

Inter-carrier interference mitigation for underwater acoustic communications [PDF]

Communicating at a high data rate through the ocean is challenging. Such communications must be acoustic in order to travel long distances. The underwater acoustic channel has a long delay spread, which makes orthogonal frequency division multiplexing ...
Daly, Erica Lynn
core  

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

Underwater acoustic communications. From point-to-point to networks [PDF]

, 2013
This is a review presentation that addresses recent developments in underwater acoustic telemetry as a tool for ocean observation, monitoring and protection.
Jesus, S. M.
core  

Underwater communications

, 2023
Podvodna komunikacija je tehnologija za prijenos informacija u podvodnom okruženju. Ove tehnologije suočavaju se s raznim izazovima, kao što su prigušenje signala, raspršenje i refleksija signala zbog apsorpcije zvučnih ili elektromagnetskih valova u morskoj vodi.
openaire   +1 more source