Results 71 to 80 of about 3,050,683 (256)

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di, Guoliang Ma, Jiaxin Mu, Kailian Dong, Haibin Li, Manjing Wang, Xin Song, Haojin Li, Jianwei Xu, Yiying Zhao, Jingjing Zhao, Guojia Fang   +11 more
wiley   +1 more source

A constructive airborne‐ground matrix algorithm for modern telecommunication systems

IET Networks
Conventional Mobile Communication Systems (MCS) reliably transfer critical messages from authorised remote information sources like military bases and ground control stations in the war field.
Samson Arun Raj A, Basil Xavier S, Jaspher Wilisie Kathrine G, Salaja Silas, Andrew J   +4 more
doaj   +1 more source

Flexible wearable electronics for cardiovascular monitoring from surface signals to deep physiological insights

FlexMat, EarlyView.
This review organizes flexible wearable electronics for cardiovascular monitoring into four interconnected information layers: surface electrophysiology, hemodynamic sensing, vascular imaging, and biofluid biomarker analysis. This framework clarifies how electrical rhythm, vascular loading, structural and flow‐related features, and biochemical states ...
Qiao Chen, Hongwen Chen, Yuanyuan Li, Pingan Yang, Rui Li, Zhihao Zhou   +5 more
wiley   +1 more source

Denial of service attacks and challenges in broadband wireless networks [PDF]

, 2008
Broadband wireless networks are providing internet and related services to end users. The three most important broadband wireless technologies are IEEE 802.11, IEEE 802.16, and Wireless Mesh Network (WMN).
Khan, S, Loo, KK, Naeem, T, Khan, MA
core   +4 more sources

Fabrication of flexible composite electrodes and their application in flexible supercapacitors for wearable electronic devices

FlexMat, EarlyView.
This review surveys current progress in composite flexible electrodes for flexible supercapacitors, emphasizing how structural engineering and material synergy enhance both mechanical compliance and electrochemical performance. It discusses fabrication strategies, emerging application scenarios, and ongoing challenges, offering updated insights that ...
Weikang Wang, Qing Liu, Ang Lv, Shuai Zhou, Chunlei Zhang, Luping Zhang, Liming Li, Weiwei Zhao, Yuchun Tang, Fei Huang   +9 more
wiley   +1 more source

Machine Learning-Enabled 5G and 6G Networks: Methods, Challenges, and Opportunities

Applied Sciences
Fifth-generation (5G) and sixth-generation (6G) wireless communications aim to achieve significantly higher data speeds, remarkably low latency, and substantial improvements in the efficiency of base stations.
Muhammad Owais, Thokozani Shongwe
doaj   +1 more source

Epitaxial Integration of III–V Membrane Photodetectors With Lateral p–i–n Junctions on the Silicon‐On‐Insulator Waveguide Platform

Laser &Photonics Reviews, EarlyView.
Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan, Yifu Chen, Martin Ebert, Ka Ming Wong, Wenjie Wang, Tim Grieb, Florian F. Krause, Andreas Rosenauer, Graham T. Reed, David J. Thomson, Qiang Li   +10 more
wiley   +1 more source

Enhancing TCP delivery over wireless networks

, 2009
Wireless communication has become a significant life style in the daily use. The wireless communication can be used to extend the service of wired communication.
Lien, Kai-Wen
core   +1 more source

Concept of building a national broadband wireless access network

Технологія та конструювання в електронній апаратурі, 2003
For the first time, a concept of building a national network based on broadband wireless access technologies is developed. The concept is defined as a combination of wireless telecommunication facilities for information services, as well as corporate and
S. А. Kravchuk, V. P. Potienko, V. М. Chmil   +2 more
doaj  

Ultra‐Fast and Energy‐Efficient PZT Optical Tunable Delay Lines for Programmable Photonic Systems

Laser &Photonics Reviews, EarlyView.
Thin‐film PZT enables optical tunable delay lines that simultaneously offer sub‐nanosecond switching, low propagation loss, and zero‐static‐power programmability. A five‐bit on‐chip delay line provides a maximum delay of 387.5 ps with a resolution of 12.5 ps, while reconfigurable MZI splitting ratios further enable non‐volatile optical arbitrary ...
Cunyu Shi, Chenlei Li, Wei Chen, Shengjie Tang, Tao Shu, Haojie Zhu, Haorui Liu, Yueyang Zhang, Long Zhang, William Shieh, Feng Qiu, Daoxin Dai   +11 more
wiley   +1 more source