Results 101 to 110 of about 220,103 (296)

A Secure Remote Mutual Authentication Scheme Based on Chaotic Map for Underwater Acoustic Networks

open access: yesIEEE Access, 2020
Underwater acoustic networks (UANs) have emerged as a new wireless sensor network structure widely used in many applications. Sensor nodes are usually placed in a hostile and unattended underwater environment to gather information with limited resource ...
Shuailiang Zhang, Xiujuan Du, Xin Liu
doaj   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

open access: yesAdvanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo   +4 more
wiley   +1 more source

Routing Improvement in Underwater Wireless Sensor Networks for Energy Saving Purposes

open access: yesMajlesi Journal of Electrical Engineering
Underwater wireless sensor networks have attracted much attention in various applications such as natural disasters monitoring, defense, industries, etc. A new routing algorithm for underwater wireless sensor networks is developed and tested.
Mohammad Nokhodian   +2 more
doaj   +1 more source

Marine Wireless Big Data: Efficient Transmission, Related Applications, and Challenges

open access: yes, 2017
The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in extremely ...
Jiang, Tao   +3 more
core   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

open access: yesAdvanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao   +4 more
wiley   +1 more source

UA-MAC: An Underwater Acoustic Channel Access Method for Dense Mobile Underwater Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
The long propagation delay and low data rate characteristics of acoustic communication attach many challenges to underwater wireless sensor networks. In this paper, a TDMA based underwater acoustic channel access method (UA-MAC) is proposed mainly to ...
Chao Lv, Shuo Wang, Min Tan, Lan Chen
doaj   +1 more source

Cross-layer Balanced and Reliable Opportunistic Routing Algorithm for Mobile Ad Hoc Networks

open access: yes, 2018
For improving the efficiency and the reliability of the opportunistic routing algorithm, in this paper, we propose the cross-layer and reliable opportunistic routing algorithm (CBRT) for Mobile Ad Hoc Networks, which introduces the improved efficiency ...
Diaz, Vicente Hernandez   +2 more
core   +3 more sources

A Review on Biodegradable Materials of Sustainable Soft Robotics and Electronics

open access: yesAdvanced Science, EarlyView.
Biodegradable materials are gaining increasing attention in soft robotics and electronics due to their environmental friendliness, showing great potential for sustainability. In this review, the classification of biodegradable materials, their applications in the field of soft robotics and electronics, as well as the challenges and future prospects ...
Yizhu Xie   +8 more
wiley   +1 more source

Epithelium‐Inspired, Ultrahigh‐Toughness, Ultralow‐Hysteresis, and Highly Compressible Polymer Hydrogels as Self‐Powered, Visual, and Underwater Strain Sensors

open access: yesAdvanced Science, EarlyView.
Inspired by epithelial tissue, epithelium‐like structure hydrogels are synthesized. The as‐prepared hydrogels exhibit ultrahigh toughness, ultralow hysteresis, and ultrahigh compressibility, which can be utilized as self‐powered and visual strain sensors.
Yutang Zhou   +4 more
wiley   +1 more source

Biodegradable Adhesive Systems for Bio‐Integrated Applications

open access: yesAdvanced Science, EarlyView.
Biodegradable adhesives provide temporary yet reliable adhesion while degrading into safe, non‐toxic by‐products under physiological or environmental conditions. This review summarizes recent developments in physical and chemical adhesion mechanisms—including hydrogen bonding, catechol chemistry, amine‐carboxyl coupling, and emerging diazirine and urea
Won Bae Han   +6 more
wiley   +1 more source

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