Results 21 to 30 of about 477,677 (197)

Wireless Telegraphy [PDF]

open access: bronzeJournal of the Institution of Electrical Engineers, 1899
Kelvin Reginald, A Fessel
openalex   +2 more sources

Design and Performance Analysis of Peltier & Piezoelectric Human Energy Harvesting Hybrid Model for WBAN Application [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
Wireless body area network (WBAN) has evolved from Wireless personal area network (WPAN), a prominent area of research with vast applications in last decade.
Hardeep Singh Dhillon, Paras Chawla
doaj   +1 more source

Improving TCP Performance on CSMA/CA Connections

open access: yesProceedings of the International Conference on Applied Innovations in IT, 2014
In IP networks, most of packets, that have been dropped, are recovered after the expiration of retransmission timeouts. These can result in unnecessary retransmissions and needless reduction of congestion window.
Hao Hu, Dmitry Kachan, Eduard Siemens
doaj   +1 more source

Field evaluation of an electrostatic PM2.5 mass monitor [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
An electrostatic PM2.5 mass monitor (EPMM) used for wireless continuous airborne particulate matter monitoring was developed and field evaluated in our previous work.
Panich Intra   +2 more
doaj   +1 more source

Star Type Wireless Sensor Network for Future Distributed Structural Health Monitoring Applications

open access: yesInventions, 2019
A star type wireless sensor network based on nine-axis micro-electromechanical inertial motion sensors with the potential to include up to 254 sensor nodes is presented, and an investigation into the mechanical and structural effects of bell ringing on ...
James Meech   +2 more
doaj   +1 more source

Wireless Expanders

open access: yesProceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures, 2018
This paper introduces an extended notion of expansion suitable for radio networks. A graph $G=(V,E)$ is called an $( _w, _w)$-{wireless expander} if for every subset $S \subseteq V$ s.t. $|S|\leq _w \cdot |V|$, there exists a subset $S'\subseteq S$ s.t.
Shirel Attali   +3 more
openaire   +3 more sources

Absorption of 5G Radiation in Brain Tissue as a Function of Frequency, Power and Time

open access: yesIEEE Access, 2020
The rapid release of 5G wireless communications networks has spurred renewed concerns regarding the interactions of higher radiofrequency (RF) radiation with living species. We examine RF exposure and absorption in ex vivo bovine brain tissue and a brain
David H. Gultekin, Peter H. Siegel
doaj   +1 more source

A wirelessly controlled implantable LED system for deep brain optogenetic stimulation

open access: yesFrontiers in Integrative Neuroscience, 2015
In recent years optogenetics has rapidly become an essential technique in neuroscience. Its temporal and spatial specificity, combined with efficacy in manipulating neuronal activity, are especially useful in studying the behavior of awake behaving ...
Mark A. Rossi   +7 more
doaj   +1 more source

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