Results 81 to 90 of about 1,136,430 (371)

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

Non-contact assessment of cardiac physiology using FO-MVSS-based ballistocardiography: a promising approach for heart failure evaluation

open access: yesScientific Reports
Continuous monitoring of cardiac motions has been expected to provide essential cardiac physiology information on cardiovascular functioning. A fiber-optic micro-vibration sensing system (FO-MVSS) makes it promising.
Jing Zhan   +13 more
doaj   +1 more source

Energy consumption modeling of industrial robot based on simulated power data and parameter identification

open access: yesAdvances in Mechanical Engineering, 2018
Industrial robots consume a considerable amount of energy in the manufacturing industry. As sustainable manufacturing is one of the directions of manufacturing, the energy efficiency of the industrial robots should be considered.
Aiming Liu   +4 more
doaj   +1 more source

A Survey on Software-Defined Wireless Sensor Networks: Challenges and Design Requirements

open access: yesIEEE Access, 2017
Software defined networking (SDN) brings about innovation, simplicity in network management, and configuration in network computing. Traditional networks often lack the flexibility to bring into effect instant changes because of the rigidity of the ...
H. Kobo, A. Abu-Mahfouz, G. Hancke
semanticscholar   +1 more source

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

EMQP: An Energy-Efficient Privacy-Preserving MAX/MIN Query Processing in Tiered Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2013
We consider a hybrid two-tiered sensor network consisting of regular resource-limited sensor nodes and powerful master nodes with abundant resources. In the architecture, master nodes take charge of storing data collected by sensor nodes and processing ...
Hua Dai, Geng Yang, Xiaolin Qin
doaj   +1 more source

A P2P Dynamic Trust Model Based on Service Expectation [PDF]

open access: yesJisuanji gongcheng, 2016
In order to solve the poor dynamic adaptability to the node’s behaviors in current P2P trust models and deal with the variety of malicious attacks in the network,a new P2P dynamic trust model is proposed.Several parameters are introduced in computing ...
ZHU Jie,CAO Xiaomei,GUO Huajuan
doaj   +1 more source

Practical Network Coding in Sensor Networks: Quo Vadis? [PDF]

open access: yes, 2012
. Network coding is a novel concept for improving network ca-pacity. This additional capacity may be used to increase throughput or reliability. Also in wireless networks, network coding has been proposed as a method for improving communication.
Kasun Samarasinghe   +5 more
core   +2 more sources

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

open access: yesAdvanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai   +6 more
wiley   +1 more source

Using artificial intelligence in routing schemes for wireless networks [PDF]

open access: yes, 2007
For the latest 10 years, many authors have focused their investigations in wireless sensor networks. Different researching issues have been extensively developed: power consumption, MAC protocols, self-organizing network algorithms, data-aggregation ...
Barbancho Concejero, Antonio   +3 more
core  

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