Results 111 to 120 of about 1,112,751 (384)

Crack‐Growing Interlayer Design for Deep Crack Propagation and Ultrahigh Sensitivity Strain Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A crack‐growing semi‐cured polyimide interlayer enabling deep cracks for ultrahigh sensitivity in low‐strain regimes is presented. The sensor achieves a gauge factor of 100 000 at 2% strain and detects subtle deformations such as nasal breathing, highlighting potential for minimally obstructive biomedical and micromechanical sensing applications ...
Minho Kim   +11 more
wiley   +1 more source

Secrecy Rate Optimization in Wireless Multi-Hop Full Duplex Networks

open access: yesIEEE Access, 2018
Physical layer security and full duplex have been two widely applied techniques in wireless communications community, where the physical layer security can prevent eavesdropping without the upper layer data encryption, while the full duplex can improve ...
Feng Tian   +6 more
doaj   +1 more source

Nanomaterial‐Integrated Fiber Neural Probes for Deep Brain Monitoring and Modulation: Challenges and Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
The article presents nanomaterial‐integrated fiber neural probes as innovative tools for deep brain molecular sensing, neural stimulation, and temperature monitoring. It examines breakthroughs in SERS‐based biomolecule detection, thermoplasmonic activation, and luminescent thermometry, alongside strategies to overcome stability, specificity, and ...
Di Zheng   +5 more
wiley   +1 more source

Novel Side Information Generation Algorithm of Multiview Distributed Video Coding for Multimedia Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2012
The traditional multiview distributed video coding scheme using regional unified coding may lead to distortion problem of decoding estimation of the intense motion region. This paper presents a novel multiview distributed video coding algorithm.
Fu Xiao   +3 more
doaj   +1 more source

A Controller Switching Mechanism for Resilient Wireless Sensor–Actuator Networks [PDF]

open access: gold, 2022
Byeong-Moon Cho   +3 more
openalex   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

open access: yesAdvanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao   +8 more
wiley   +1 more source

Near Optimal Broadcast with Network Coding in Large Sensor Networks [PDF]

open access: yes, 2007
We study efficient broadcasting for wireless sensor networks, with network coding. We address this issue for homogeneous sensor networks in the plane. Our results are based on a simple principle (IREN/IRON), which sets the same rate on most of the nodes (
Adjih, Cédric   +2 more
core   +2 more sources

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

open access: yesAdvanced 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

Performance Analysis of Hierarchical Routing Protocols in Wireless Sensor Networks

open access: yes, 2012
This work focusses on analyzing the optimization strategies of routing protocols with respect to energy utilization of sensor nodes in Wireless Sensor Network (WSNs).
Jaffar, M.   +5 more
core   +1 more source

Energy Efficient Beamforming for Multi-User Transmission in Cognitive Radio Networks With Secrecy Constraints

open access: yesIEEE Access, 2018
This paper investigates the energy efficiency (EE) maximization problem with secrecy constraints for a multi-user underlay cognitive radio network (CRN), where each single-antenna cognitive user is surrounded by a multi-antenna eavesdropper user ...
Pu Chen   +3 more
doaj   +1 more source

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