Results 21 to 30 of about 13,375,458 (347)

STAR: Simultaneous Transmission and Reflection for 360° Coverage by Intelligent Surfaces [PDF]

open access: yesIEEE wireless communications, 2021
A novel simultaneous transmitting and reflecting (STAR) system design relying on reconfigurable intelligent surfaces (RISs) is conceived. First, an existing prototype is reviewed, and the potential benefits of STAR-RISs are discussed.
Yuanwei Liu   +6 more
semanticscholar   +1 more source

Cross Layer Interference Management in Wireless Biomedical Networks

open access: yesEntropy, 2014
Interference, in wireless networks, is a central phenomenon when multiple uncoordinated links share a common communication medium. The study of the interference channel was initiated by Shannon in 1961 and since then this problem has been thoroughly ...
Emmanouil G. Spanakis   +3 more
doaj   +1 more source

Model approximation for sound transmission from underwater structures in high-frequency range [PDF]

open access: yesMATEC Web of Conferences, 2019
Sound-insulation model provides a straightforward way to describe sound transmission behaviours of the thin-walled structures in engineering applications.
Zhang Rui   +3 more
doaj   +1 more source

An Almost Comprehensive Approach for the Choice of Motor and Transmission in Mechatronic Applications: Torque Peak of the Motor

open access: yesMachines, 2021
The choice of motor and transmission to move a joint must ensure that the torque peaks of the motor lie inside its dynamic operating range. With this aim, this paper proposes an approach in which all the candidate transmissions are processed one by one ...
Giancarlo Cusimano, Federico Casolo
doaj   +1 more source

Self-Organizing and Scalable Routing Protocol (SOSRP) for Underwater Acoustic Sensor Networks

open access: yesSensors, 2019
Underwater Acoustic Sensor Networks (UASN) have two important limitations: a very aggressive (marine) environment, and the use of acoustic signals. This means that the techniques for terrestrial wireless sensor networks (WSN) are not applicable.
Sateesh Kumar Hindu   +4 more
doaj   +1 more source

Proposed asymmetric phase shift modulation strategy to improve zero-voltage-switch range and transmission power range for dual active bridge converter

open access: yesEnergy Reports, 2023
The dual active bridge (DAB) DC–DC converter is typical in DC transformers to realize the voltage transformation and power transmission, which is determined by modulation. However, in traditional phase shift modulation strategies, the zero-voltage-switch
Yiting Xiao, Yuanpeng Guan, Li Qin
doaj   +1 more source

Evaluation of LoRaWAN Transmission Range for Wireless Sensor Networks in Riparian Forests

open access: yesInternational Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, 2019
Low power wide area networks (LPWAN) such as long range wide area networks (LoRaWAN), provide several advantages on monitoring systems development in forested environments due to its simple set-up, low cost, low power consumption, and wide coverage ...
Pablo Avila-Campos   +3 more
semanticscholar   +1 more source

The complex relationship between weather and dengue virus transmission in Thailand. [PDF]

open access: yes, 2013
Using a novel analytical approach, weather dynamics and seasonal dengue virus transmission cycles were profiled for each Thailand province, 1983-2001, using monthly assessments of cases, temperature, humidity, and rainfall.
Campbell, Karen M   +3 more
core   +1 more source

Mapping Unoccupied Electronic States of Freestanding Graphene by Angle-Resolved Low-Energy Electron Transmission [PDF]

open access: yes, 2016
We report angle-resolved electron transmission measurements through freestanding graphene sheets in the energy range of 18 to 30 eV above the Fermi level.
Escher, Conrad   +4 more
core   +1 more source

Universal optical transmission features in periodic and quasiperiodic hole arrays [PDF]

open access: yes, 2008
We investigate the influence of array order in the optical transmission properties of subwavelength hole arrays, by comparing the experimental spectral transmittance of periodic and quasiperiodic hole arrays as a function of frequency.
Atwater, Harry A.   +4 more
core   +1 more source

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