Results 81 to 90 of about 10,179 (294)
Advanced Functional Materials, EarlyView.Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang +7 more
wiley +1 more source
A Grid-Based Linear Least Squares Self-Localization Algorithm in Wireless Sensor Network
International Journal of Distributed Sensor Networks, 2015 Self-localization is one of the key technologies in the wireless sensor networks (WSN). Some traditional self-localization algorithms can provide a reasonable positioning accuracy only in a uniform and dense network, while for a nonuniform network the ...
Wei Wang +6 more
doaj +1 more source
Moisture‐Driven Hydrogel Power Source with Asymmetric Ion Adsorption for Flexible Electronics
Advanced Functional Materials, EarlyView.A hydrogel‐based power source employing asymmetric ion‐adsorbing electrodes and moisture‐driven gradients is reported. This design enables continuous electricity generation for over 4000 minutes without significant decay and without requiring external input.
Zhaoyang Sun +9 more
wiley +1 more source
Group-based key pre-distribution in wireless sensor networks [PDF]
, 2005 Donggang Liu, Peng Ning, Wenliang Du
openalex +1 more source
Intrinsically Soft Printed Electronics for Digitally Augmented Human Sensing and Vision
Advanced Functional Materials, EarlyView.This work introduces a class of highly functional, multilayer flexible and stretchable circuits capable of digitally augmenting human sensing and vision. Studies in multi‐material soft composite inks yielded a formulation that enables overpass printing, self‐healing, and high‐resolution functionality.
Nathan Zavanelli +7 more
wiley +1 more source
Key distribution scheme of wireless sensor networks based on logic grid
Tongxin xuebao, 2009 Owed to the obvious characters of energy-constraint and dynamic topology, issues including confidentiality, integrality, authentication and no sufficient memory for abundance of key information, needed to be effectively solved in key management technique,
HUANG Hai-ping1, 2, WANG Ru-chuan1, 2
doaj +2 more sources
Group authentication and key distribution for sensors in wireless body area network [PDF]
, 2021 Yong Ding +4 more
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Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers
Advanced Functional Materials, EarlyView.Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung +7 more
wiley +1 more source
Distributed KDC-Based Random Pairwise Key Establishment in Wireless Sensor Networks
EURASIP Journal on Wireless Communications and Networking, 2010 Key management is a core mechanism to provide secure and reliable communications in wireless sensor networks (WSNs). In large-scale WSNs, due to the resource constraint on sensor nodes, it is still an extremely challenging task to achieve good ...
Chu Xiaowen +4 more
doaj
A Protocol Layer Trust-Based Intrusion Detection Scheme for Wireless Sensor Networks
Sensors, 2017 This article proposes a protocol layer trust-based intrusion detection scheme for wireless sensor networks. Unlike existing work, the trust value of a sensor node is evaluated according to the deviations of key parameters at each protocol layer ...
Jian Wang +2 more
doaj +1 more source