Results 81 to 90 of about 13,205,673 (308)

An Error Protection Protocol for user-transparent bridging of Fast Ethernet data transmission over the optical fading channel in an Aeronautical environment [PDF]

, 2008
This paper presents an extensive insight into error protection techniques for free space optical links, focusing in particular in aeronautic stratospherically applications.
Serrano-Solsona, Clara, Henniger, Hennes, Epple, Bernhard   +2 more
core  

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced 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, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source

Multi-element fiber for space-division multiplexed optical communication system [PDF]

, 2014
This paper reviews a novel approach of implementing space-division multiplexing (SDM) based on Multi-element Fiber (MEF) technology. The MEF geometry provides for ultra-low crosstalk between the spatial channels while full compatibility with standard WDM
J. K. Sahu, D. J. Richardson, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., V. J. F. Rancano, T. C. May-Smith, P. Petropoulos, S. Jain, Rancaño, V.J.F., Sahu, J.K.   +11 more
core   +2 more sources

Phase Offset Tracking for Free Space Digital Coherent Optical Communication System

Applied Sciences, 2019
The coherent receiving method can improve the sensitivity of an optical signal receiver for free space optical communication system effectively. To implement coherent receiving, the phase offset between the local laser in the receiver and the received ...
Hongwei Li, Yongmei Huang, Qiang Wang, Dong He, Zhenming Peng, Qing Li   +5 more
doaj   +1 more source

Investigation of turbulence effect on the free space optical link for ground-to-train communications [PDF]

, 2011
There is a growing demand for high mobility and ultrafast internet/data services which drives the motivation for free space optical (FSO) communications for high speed trains.
Ghassemlooy, Zabih, Paudel, Rupak, Livingstone, Bryan, Rajbhandari, Sujan, Le Minh, Hoa   +4 more
core  

Biomimetic Core–Shell Liposome Nanoparticles Deplete Lipoproteins and Enhance the Purity of Extracellular Vesicles from Human Blood

Advanced Functional Materials, EarlyView.
Lipoprotein‐mimicking nanoparticles (SL‐NPs), comprising Fe3O4@SiO2 cores coated with liposomal bilayers, selectively capture lipoproteins through protein corona formation. The resulting SL‐NP‐lipoprotein complexes can be removed by low‐speed centrifugation, thereby enhancing the purity of small extracellular vesicles (sEVs) isolated from human serum ...
Man‐Di Wang, Andrew J. Perciaccante, David Inman, Bong Hwan Sung, Alissa M. Weaver, Suzanne M. Ponik, Ying Ge, Song Jin   +7 more
wiley   +1 more source

MOBILE OPTICAL HIGH-SPEED DATA LINKS WITH SMALL TERMINALS [PDF]

, 2009
Mobile Optical Free-Space Communication (MFSO) downlinks from observation platforms in low earth orbit or in the atmosphere will allow nearly undetectable high-speed data links with small and low-power laser communication terminals.
Giggenbach, Dirk, D. Giggenbach
core   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Blind Detection for Serial Relays in Free Space Optical Communication Systems

Applied Sciences, 2018
Free-space optical (FSO) communication systems have attracted considerable research interest owing to its high transmission rates and its efficient solution for the last mile problem. Atmospheric turbulence degrades the performance of FSO systems.
Mohamed Elbawab, Mohamed Abaza, Moustafa H. Aly   +2 more
doaj   +1 more source