Results 81 to 90 of about 11,266 (293)
Advanced Materials, EarlyView.This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi +12 more
wiley +1 more source
The Node Deployment of Intelligent Sensor Networks Based on the Spatial Difference of Farmland Soil
Sensors, 2015 Considering that agricultural production is characterized by vast areas, scattered fields and long crop growth cycles, intelligent wireless sensor networks (WSNs) are suitable for monitoring crop growth information.
Naisen Liu +5 more
doaj +1 more source
Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain
Advanced Materials, EarlyView.A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha +14 more
wiley +1 more source
Path Diversity Improved Opportunistic Routing for Underwater Sensor Networks
Sensors, 2018 The packets carried along a pre-defined route in underwater sensor networks are very vulnerble. Node mobility or intermittent channel availability easily leads to unreachable routing.
Weigang Bai +3 more
doaj +1 more source
Advanced Materials, EarlyView.Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia +3 more
wiley +1 more source
Random Cooperative Key Pre-Distribution Scheme in Wireless Sensor Networks
International Journal of Online and Biomedical Engineering (iJOE), 2018 To cope with the security challenges brought by the popularization of wireless sensor network (WSN), a new random key pre-distribution scheme for WSNs based on the grid deployment theory of Blom mechanism is proposed. The core idea is to divide the network area where the nodes are into different types of hexagonal grids and nodes in different grids use
openaire +2 more sources
Rewriting Polymer Fate via Chemomechanical Coupling
Advanced Materials, EarlyView.This work introduces a life‐like “living” polymer platform that can grow, degrow, and reprogram its properties after fabrication. By integrating mass transport, reversible polymerization, and controlled catalysis, the material achieves on‐demand changes in size, shape, and mechanical properties.
Jiahe Huang +9 more
wiley +1 more source
Digital Microneedles for Multiplexed Transdermal Sensing via Fluorescent QR Codes
Advanced Materials, EarlyView.Digital fluorescent microneedles encode biochemical information in skin into scannable QR codes through threshold‐activated probes that generate binary on/off signals. By transforming analog fluorescence into discrete digital patterns, this platform enables calibration‐free, multiplexed transdermal sensing of physiologically relevant biomarkers ...
Farbod Abazar +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
Security Property Validation of the Sensor Network Encryption Protocol (SNEP)
Computers, 2015 Since wireless sensor networks (WSNs) have been designed to be deployed in an unsecured, public environment, secured communication is really vital for their wide-spread use.
Salekul Islam
doaj +1 more source