Results 111 to 120 of about 90,442 (327)

A Key Establishment Scheme for Mobile Wireless Sensor Networks Using Post-Deployment Knowledge

open access: yes, 2011
Establishment of pairwise keys between sensor nodes in a sensor network is a difficult problem due to resource limitations of sensor nodes as well as vulnerability to physical captures of sensor nodes by the enemy.
Das, Ashok Kumar
core   +1 more source

Smart Polymeric 3D Microscaffolds Hosting Spheroids for Neuronal Research via Quantum Metrology

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
Development of a platform consisting of 3D microscaffolds supporting 3D embryoid bodies for neuronal research. The polymeric scaffolds enable directed growth of neurites. This study shows nanodiamond‐based quantum sensors graft onto the polymer material, enabling quantum metrology experiments within the 3D neuronal model and thereby providing a ...
Beatriz N. L. Costa   +5 more
wiley   +1 more source

Path Diversity Improved Opportunistic Routing for Underwater Sensor Networks

open access: yesSensors, 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

A Key Distribution Scheme for Mobile Wireless Sensor Networks: $q$ - $s$ -Composite

open access: yesIEEE Transactions on Information Forensics and Security, 2017
The majority of security systems for wireless sensor networks are based on symmetric encryption. The main open issue for these approaches concerns the establishment of symmetric keys. A promising key distribution technique is the random predistribution of secret keys.
GANDINO, FILIPPO   +2 more
openaire   +3 more sources

Implementation of Secure Key Management Techniques in Wireless Sensor Networks [PDF]

open access: yes, 2008
Creating a secure wireless sensor network involves authenticating and encrypting messages that are sent throughout the network. The communicating nodes must agree on secret keys in order to be able to encrypt packets.
Ottallah, Noor
core   +1 more source

k-connectivity of Random Graphs and Random Geometric Graphs in Node Fault Model

open access: yes, 2018
k-connectivity of random graphs is a fundamental property indicating reliability of multi-hop wireless sensor networks (WSN). WSNs comprising of sensor nodes with limited power resources are modeled by random graphs with unreliable nodes, which is known ...
bollobás   +7 more
core   +1 more source

Dexamethasone Delivery via Amphiphilic, Low‐swelling Hydrogels Treats Postoperative Inflammation in Cervical Spine Applications

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
DexaPatch, an implantable, low‐swelling amphiphilic hydrogel system containing dexamethasone‐PLGA microparticles, is developed and characterized for sustained local steroid release to reduce postoperative inflammation in tight surgical spaces. DexaPatch significantly reduces postoperative edema and fibrosis in a rabbit model of anterior spinal surgery,
Stephen W. Linderman   +6 more
wiley   +1 more source

The Node Deployment of Intelligent Sensor Networks Based on the Spatial Difference of Farmland Soil

open access: yesSensors, 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

Resilient networking in wireless sensor networks [PDF]

open access: yes, 2010
This report deals with security in wireless sensor networks (WSNs), especially in network layer. Multiple secure routing protocols have been proposed in the literature. However, they often use the cryptography to secure routing functionalities.
Erdene-Ochir, Ochirkhand   +3 more
core   +2 more sources

Secure and Energy-Efficient Data Aggregation in Wireless Sensor Networks

open access: yes, 2012
Data aggregation in intermediate nodes (called aggregator nodes) is an effective approach for optimizing consumption of scarce resources like bandwidth and energy in Wireless Sensor Networks (WSNs).
Sen, Jaydip
core   +1 more source

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