Results 1 to 10 of about 49,516 (251)

Energy and flux variations across thin auroral arcs [PDF]

open access: yesAnnales Geophysicae, 2011
Two discrete auroral arc filaments, with widths of less than 1 km, have been analysed using multi-station, multi-monochromatic optical observations from small and medium field-of-view imagers and the EISCAT radar.
H. Dahlgren   +10 more
doaj   +3 more sources

Monopolar and bipolar auroral electric fields and their effects [PDF]

open access: yesAnnales Geophysicae, 2010
Most of the high-altitude auroral electric fields observed by CLUSTER can be classified into monopolar and bipolar structures. The observations associate monopolar electric fields with polar cap boundary arcs, while bipolar fields tend to be linked to
J. De Keyser, R. Maggiolo, M. Echim
doaj   +1 more source

Research on the arcing horn with active arc extinguishing function for HVDC grounding electrode line

open access: yesIET Generation, Transmission & Distribution, 2023
The grounding electrode line is an important part of the Ultra high voltage direct current (UHVDC) transmission system. It acts as the channel to conduct the unbalanced current and the grounding current.The arcing horn consists of a pair of electrodes ...
Yicen Liu   +6 more
doaj   +1 more source

Dataset of measured and commented pantograph electric arcs in DC railways

open access: yesData in Brief, 2020
DC railways are characterized by particularly intense arcing caused by pantograph detachment, due to the large current intensity and the general implementation of onboard resonant filters, whose transient response is triggered by electric transients ...
Davide Signorino   +8 more
doaj   +1 more source

Sheared magnetospheric plasma flows and discrete auroral arcs: a quasi-static coupling model [PDF]

open access: yesAnnales Geophysicae, 2007
We consider sheared flows in magnetospheric boundary layers of tangential discontinuity type, forming a structure that is embedded in a large-scale convergent perpendicular electric field. We construct a kinetic model that couples the magnetospheric
M. M. Echim   +3 more
doaj   +1 more source

Effect of compressibility on industrial DC electric arcs

open access: yesResults in Engineering, 2023
The paper reports on the behaviour and dynamics of direct current electric arc in an industrial electric arc furnace. Electric arcs are intense energy sources involved in many industrial processes.
Mohamad Al-Nasser   +8 more
doaj   +1 more source

Electrical discharges in water induce spores' DNA damage. [PDF]

open access: yesPLoS ONE, 2018
Bacterial spores are one of the most resilient life forms on earth and are involved in many human diseases, such as infectious diarrhea, fatal paralytic illnesses and respiratory infections.
Camille Lamarche   +5 more
doaj   +1 more source

Comparative Analysis of Optical Radiation Emitted by Electric Arc Generated at AC and DC Voltage

open access: yesEnergies, 2020
The article presents a comparison of the spectra of electromagnetic radiation emitted by an electric arc. The spectrum ranges from ultraviolet through visible light to near infrared.
Łukasz Nagi   +2 more
doaj   +1 more source

Radar observations in the vicinity of pre-noon auroral arcs [PDF]

open access: yesAnnales Geophysicae, 2005
A combination of EISCAT incoherent scatter radar measurements, optical and magnetometer data is used to study the plasma in and around pre-noon structured precipitation and auroral arcs.
H. Nilsson   +4 more
doaj   +1 more source

Microwave-induced electric discharges on metal particles for the synthesis of inorganic nanomaterials under solvent-free conditions

open access: yesBeilstein Journal of Nanotechnology, 2020
Microwave irradiation of metals generates electric discharges (arcs). These arcs are used to generate nanoparticles of Cu and Ni and one-dimensional nanorods of CuS, ZnF2, and NiF2 protected with fluorinated amorphous carbon.
Vijay Tripathi   +3 more
doaj   +1 more source

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