Results 31 to 40 of about 16,135 (207)

Effect of Earth Ground and Environment on Body-Centric Communications in the MHz Band

open access: yesInternational Journal of Antennas and Propagation, 2012
Body area network (BAN) research, which uses the human body as a transmission channel, has recently attracted considerable attention globally. Zimmerman first advocated the idea in 1995.
Katsuyuki Fujii, Yasuyuki Okumura
doaj   +1 more source

A 3.8-V earth-abundant sodium battery electrode [PDF]

open access: yesNature Communications, 2014
AbstractRechargeable lithium batteries have ushered the wireless revolution over last two decades and are now matured to enable green automobiles. However, the growing concern on scarcity and large-scale applications of lithium resources have steered effort to realize sustainable sodium-ion batteries, Na and Fe being abundant and low-cost charge ...
Barpanda, Prabeer   +4 more
openaire   +2 more sources

Characterization of horizontal earth electrodes: variable frequency and impulse responses

open access: yes, 2015
Grounding systems such as vertical and horizontal electrodes, and grids are installed in the soil to mitigate against the effects of system faults and lightning surges.
Robson, Stephen   +16 more
core   +1 more source

Theoretical Study on Geometries of Electrodes in Laboratory Electrical Resistivity Measurement [PDF]

open access: yes, 2019
Electrical resistivity tests have been widely conducted in multiple scales, from a few centimeters to kilometers. While electrode spacing is used to define field resistance, laboratory measurements in a limited space need to consider electrode geometry ...
Song-Hun Chong   +5 more
core   +1 more source

Earth Potential Electrodes in Permafrost and Tundra [PDF]

open access: yes, 1957
Introduction : During the past two years, the authors installed a number of electrodes in the permafrost and tundra area of Point Barrow to obtain earth potential data.
Hessler, V.P.   +3 more
core  

Resistance of earth electrodes

open access: yesElectronics Letters, 1973
By use of potential theory, expressions are obtained for the ohmic resistance of a slender metallic electrode located in a fluid-filled borehole. The configuration is idealised as a spheroidal confocal system.
openaire   +1 more source

Technique to increase the effective length of practical earth electrodes: simulation and field test results

open access: yes, 2013
Field experiments and computer simulations of two sectionalized horizontal earth electrodes are presented. The electrodes were energized using various voltage sources (dc, and transients of different shapes), and measurements of current and voltage ...
Griffiths, Huw   +4 more
core   +1 more source

Effect of multi-component rare earth oxide on microstructure and properties of tungsten electrodes

open access: yesFenmo yejin jishu
Pure tungsten (PW), lanthanum-tungsten alloy (W-La17), and ternary composite tungsten alloy (W-X17) rods were prepared by cold isostatic pressing, intermediate frequency sintering, and swaging. The effect of rare earth oxide on the microstructure, second-
WANG Chengyang   +5 more
doaj   +1 more source

Direct Determination of Ultra-Trace Amounts of Cadmium with Use of a High-Sensitive and Selective Coated Graphite Electrode

open access: yesInternational Journal of Electrochemical Science, 2012
Novel PVC-based polymeric membrane (PME), coated graphite (CGE) and coated silver wire electrodes (CWE) for sensing Cd2+ ion based on (13E)-N-benzylidene-2-(3-((E)-2- (benzylideneamino)ethyl)-2-phenylimidazolidin-1-yl)ethanamine (L) are prepared.
Farhang Mizani, Maryam komeh
doaj   +1 more source

Finite difference time domain simulation of earth electrodes soil ionization under lightning surge condition

open access: yes, 2008
The non linear effects of soil ionisation on the behaviour of earth electrodes are investigated by a finite difference time domain numerical scheme.
ALA, Guido   +3 more
core   +1 more source

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