Results 51 to 60 of about 3,084 (253)

Multimodal Acoustic-RF Adaptive Routing Protocols for Underwater Wireless Sensor Networks

open access: yesIEEE Access, 2019
In multi-function underwater wireless sensor networks (UWSNs), multiple applications share the same physical infrastructure to fully exploit network resources. Under such scenarios, diverse packets coexist in the same network which require differentiated
Hanjiang Luo   +5 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 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

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Evaluation of Node-Metastasis in Sparse Underwater Acoustic Sensor Networks for Localization Under Acoustically Stratified Malicious Node Conditions

open access: yesIEEE Access, 2021
Malicious anchor node is a serious issue in underwater sensor networks. This problem gets compounded under sparse deployment scenario. To overcome this issue, the authors present a Compressed Sensing for Malicious node Compensation theorem (abbreviated ...
Prateek   +4 more
doaj   +1 more source

Energy-efficient sensing in wireless sensor networks using compressed sensing [PDF]

open access: yes, 2014
Sensing of the application environment is the main purpose of a wireless sensor network. Most existing energy management strategies and compression techniques assume that the sensing operation consumes significantly less energy than radio transmission ...
Razzaque, Mohammad Abdur   +5 more
core   +1 more source

Multiphoton‐Printed Microrobotic Arrays Powered by Discrete, Monolithically Integrated Hydrogel Actuators

open access: yesAdvanced Robotics Research, EarlyView.
Functional surfaces are investigated as a foundation for reconfigurable microscale systems with sensing and actuation capabilities. Advances in additive manufacturing enable our development of planar arrays of hybrid‐material, compliant microdevices that convert environmental stimuli into programmed motion and visual responses.
Sandra Edward   +5 more
wiley   +1 more source

Design and Implementation of a ZigBee-based Emulation Platform for Underwater Acoustic Sensor Networks

open access: yes, 2016
Due to the hardware cost and site constraints, the underwater transmission cannot be easily achieved in the terrestrial environment. In addition, network simulators also cannot precisely evaluate the network performance.
Chen, Yen-Da;Chuang, Chia;Shih, Kuei-Ping
core   +1 more source

The three categories of node between the sender and receiver nodes in underwater acoustic sensor network.

open access: yes, 2023
The three categories of node between the sender and receiver nodes in underwater acoustic sensor network.
Ravikumar Chinthaginjala (16940713)   +1 more
core   +1 more source

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