Results 21 to 30 of about 49,516 (251)

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

open access: yes, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Aikio   +80 more
core   +1 more source

Multimeter dengan Sistem Penayangan Data Berbasis Web dan Kacamata Data

open access: yesCHIPSET, 2023
This study aims to create a multimeter system that is able to use with database system and see with data glasess . Multimeter is a measuring instrument used for measurements on electronic compositions.
Tommy Alexy, Rian Ferdian
doaj   +1 more source

Imaging and EISCAT radar measurements of an auroral prebreakup event [PDF]

open access: yesAnnales Geophysicae, 1996
The results of coordinated EISCAT and TV-camera observations of a prebreakup event on 15 November 1993 have been considered. The variations of the luminosity of two parallel auroral arcs, plasma depletion on the poleward edge of one of these arcs as ...
V. Safargaleev   +4 more
doaj   +1 more source

Kramers Weyl Semimetals as Quantum Solenoids and Their Applications in Spin-Orbit Torque Devices

open access: yes, 2021
Kramers Weyl semimetals are Weyl semimetals that have Weyl points pinned at the time reversal invariant momenta. Recently it has been discovered that all chiral crystals host Weyl points at time reversal invariant momenta, so metals with chiral lattice ...
He, Wen-Yu, Law, K. T., Xu, Xiao Yan
core   +1 more source

Anomalous transport properties of Dirac and Weyl semimetals [PDF]

open access: yes, 2018
In this review we discuss a wide range of topological properties of electron quasiparticles in Dirac and Weyl semimetals. Their nontrivial topology is quantified by a monopole-like Berry curvature in the vicinity of Weyl nodes, as well as by the energy ...
Gorbar, E. V.   +3 more
core   +2 more sources

Study on the erosion characteristics of copper‐carbon electrode pairs by DC air arc

open access: yesHigh Voltage, 2021
As common electric contact materials, copper‐carbon electrode pairs are widely used in the field of electric contact such as in high‐speed railways, motor collector rings and grounding brushes.
Wenhan Xie   +8 more
doaj   +1 more source

Cosmic radio noise absorption events associated with equatorward drifting arcs during a substorm growth phase [PDF]

open access: yesAnnales Geophysicae, 2004
Cosmic radio noise absorption (CNA) events associated with equatorward drifting arcs during a substorm growth phase are studied by using simultaneous optical auroral, IRIS imaging riometer and EISCAT incoherent scatter radar measurements.
J. R. T. Jussila   +3 more
doaj   +1 more source

A plasma vortex revisited: The importance of including ionospheric conductivity measurements [PDF]

open access: yes, 2004
In an earlier paper [Kosch et al., 1998], simultaneous all-sky TV imager and Scandinavian Twin Auroral Radar Experiment (STARE) observations of an ionospheric plasma vortex located poleward of an auroral arc were presented.
Amm, O.   +2 more
core   +1 more source

Cassini observations of ion and electron beams at Saturn and their relationship to infrared auroral arcs [PDF]

open access: yes, 2005
We present Cassini Visual and Infrared Mapping Spectrometer observations of infrared auroral emissions from the noon sector of Saturn's ionosphere revealing multiple intense auroral arcs separated by dark regions poleward of the main oval.
Badman, S. V.   +16 more
core   +4 more sources

Numerical Analysis of Three-Dimensional Proton Exchange Membrane Fuel Cell with Spiral Channels [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
We introduce a 3D methodology based on the Finite Volume Method to solve the governing equations of the Proton Exchange Membrane Fuel Cell with a spiral gas channel design. These equations were evaluated in both the anode and cathode gas channels.
Sepehr Senfi   +3 more
doaj   +1 more source

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