Results 21 to 30 of about 162,130 (269)

Sausage mode instability of thin current sheets as a cause of magnetospheric substorms [PDF]

open access: yesAnnales Geophysicae, 1999
Observations have shown that, prior to substorm explosions, thin current sheets are formed in the plasma sheet of the Earth's magnetotail. This provokes the question, to what extent current-sheet thinning and substorm onsets are physically, maybe even
J. Büchner, J. Büchner, J.-P. Kuska
doaj   +1 more source

Optimal Energy Growth in Current Sheets [PDF]

open access: yesSolar Physics, 2017
In this paper, we investigate the possibility of transient growth in the linear perturbation of current sheets. The resistive magnetohydrodynamic (MHD) operator for a background field consisting of a current sheet is non-normal, meaning that associated eigenvalues and eigenmodes can be very sensitive to perturbation. In a linear stability analysis of a
MacTaggart, David, Stewart, Peter
openaire   +2 more sources

The frequency spectrum of the solar-wind magnetic-field fluctuations that reside outside the strong current sheets: fast and slow solar wind

open access: yesFrontiers in Astronomy and Space Sciences
Motivated by knowledge that directional discontinuities (strong current sheets) in the solar-wind magnetic time series have dominating effects on the magnetic power spectral density of the solar wind, the question is raised as to what are the effects of ...
Joseph E. Borovsky, Charles W. Smith
doaj   +1 more source

The heliospheric current sheet [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2001
The heliospheric current sheet (HCS) is the boundary between open oppositely directed magnetic field lines which commonly originate as the outward extension of the solar magnetic dipole. The dipole tilt, the rotation of the Sun, and the outward propagation of the solar wind cause peaks and valleys in the current sheet which spiral outward.
openaire   +1 more source

RADIATING CURRENT SHEETS IN THE SOLAR CHROMOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2012
An MHD model of a Hydrogen plasma with flow, an energy equation, NLTE ionization and radiative cooling, and an Ohm's law with anisotropic electrical conduction and thermoelectric effects is used to self-consistently generate atmospheric layers over a $50$ km height range.
Goodman, Michael L., Judge, Philip G.
openaire   +2 more sources

“Matreshka” model of multilayered current sheet [PDF]

open access: yesGeophysical Research Letters, 2006
Current sheets are one of the key elements of the Earth's magnetosphere, determining the magnetic energy storage and release. An analytical self‐consistent model of multicomponent thin current sheets, where the plasma consists of ions of both solar wind and ionospheric origin, is presented. The influence of the electron population is taken into account
Zelenyi, L.M.   +5 more
openaire   +4 more sources

Thin embedded current sheets: Cluster observations of ion kinetic structure and analytical models [PDF]

open access: yesAnnales Geophysicae, 2009
Kinetic structure of embedded thin horizontal current sheets is investigated. Current density estimated by curlometer technique is in general agreement with a sum of electron and proton currents.
A. V. Artemyev   +8 more
doaj   +1 more source

The thickness of current sheets and implications for coronal heating

open access: yesFrontiers in Physics, 2023
The thickness of current sheets is extremely important, especially as it relates to the onset of fast magnetic reconnection. Onset determines how much magnetic free energy can build up in a field before it is explosively released.
James A. Klimchuk   +5 more
doaj   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

Finite Current-Sheets [PDF]

open access: yesProceedings of the London Mathematical Society, 1899
n ...
openaire   +2 more sources

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