Results 31 to 40 of about 8,380,945 (285)

Conversion Efficiency of 45.0% in InGaP/InGaAs/Ge Triple-Junction Solar Cells for Laser Power Beaming

open access: yesEnergies
Optical wireless power transmission systems are attracting attention as a new power transmission technology because they can supply power wirelessly over long distances.
Masahiro Koga   +4 more
doaj   +1 more source

Simulation analysis of underwater wireless optical communication based on Monte Carlo method and experimental research in complex hydrological environment

open access: yesAIP Advances, 2023
This paper aims to address the challenges of short optical communication distances and high Bit Error Rates (BERs) caused by seawater absorption, scattering, and underwater turbulence.
Yanru Ren   +4 more
doaj   +1 more source

Mine emergency communication system

open access: yesGong-kuang zidonghua, 2019
Feasibility of using existing mine communication system as emergency communication system was analyzed. Leakage communication system, inductive communication system, multi-base station mobile communication system, broadcast communication system and ...
Mine emergency communication system
doaj   +1 more source

Reliable low-power wireless networks over unstable transmission power

open access: yes, 2017
Internet of Things promises large scale interconnected sensing and actuation capabilities in domains, areas, applications and activities never accessed before by Internet.
Liotta, Antonio   +9 more
core   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Dual-Hop Underwater Optical Wireless Communication System With Simultaneous Lightwave Information and Power Transfer

open access: yesIEEE Photonics Journal, 2021
The most significant challenge of underwater optical wireless communication (UOWC) system is to overcome its limited coverage. To expand the achievable communication range, we investigate the performance of the dual-hop UOWC system with simultaneous ...
Kuan Ye, Cong Zou, Fang Yang
doaj   +1 more source

Coordinated multi-source (CoMS) transmission for optical wireless communications (OWC) [PDF]

open access: yes, 2018
Multiple optical sources are coordinated in order to create extra power budget, and increase transmission distance and capacity. Wireless transmission over 1.7 meters of 20 Gb/s PAM-4 data synthesized from two sources is experimentally demonstrated. (Th2.
Tangdiongga, Eduward   +10 more
core   +2 more sources

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Indoor gigabit optical wireless communications: challenges and possibilities [PDF]

open access: yes, 2010
Indoor Gigabit optical wireless communication systems have the potential to offer multiple high-speed data services that can be delivered to homes via an optical fibre cable in the near future. In this paper we will discuss the challenges involved in the
Ghassemlooy, Zabih   +11 more
core   +1 more source

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