Results 11 to 20 of about 380,163 (265)

Statistics of geomagnetic storms: Global simulations perspective

open access: yesFrontiers in Astronomy and Space Sciences, 2022
We present results of 131 geomagnetic storm simulations using the University of Michigan Space Weather Modeling Framework Geospace configuration. We compare the geomagnetic indices derived from the simulation with those observed, and use 2D cuts in the ...
Tuija I. Pulkkinen   +4 more
doaj   +1 more source

The making of ring currents

open access: yesPhysical Chemistry Chemical Physics, 2016
The π-electron diatropic ring current emerging throughout the trimerization of acetylene to benzene.
MONACO, Guglielmo, ZANASI, Riccardo
openaire   +2 more sources

Does Ring Current Heating Generate the Observed O+ Shell?

open access: yesGeophysical Research Letters, 2020
The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the effect of ring current heating during a storm. With a ring current heating function added to SAMI3, a cold thermal (
J. Krall, J. D. Huba, M.‐C. Fok
doaj   +1 more source

Ring Currents in Polycyclic Sodium Clusters [PDF]

open access: yesThe Journal of Physical Chemistry A, 2011
In the recent work by Khatua et al. (Khatua, S.; Roy, D. R.; Bultinck, P.; Bhattacharjee, M.; Chattaraj, P. K. Phys. Chem. Chem. Phys.2008, 10, 2461-2474) the synthesis and structure of a fac-trioxo molybdenum metalloligand and its sodium complex containing 1D hexagonal chains of sodium ions was reported. In the same paper, the aromaticity of hexagonal
Radenkovic, Slavko, Bultinck, Patrick
openaire   +4 more sources

Persistent Current in Small Superconducting Rings [PDF]

open access: yesPhysical Review Letters, 2009
4+ pages, 3 ...
Schwiete, G., Oreg, Y.
openaire   +3 more sources

Driving ionospheric outflows and magnetospheric O+ energy density with Alfvén waves

open access: yesGeophysical Research Letters, 2016
We show how dispersive Alfvén waves observed in the inner magnetosphere during geomagnetic storms can extract O+ ions from the topside ionosphere and accelerate these ions to energies exceeding 50 keV in the equatorial plane.
C. C. Chaston   +3 more
doaj   +1 more source

Comparing magnetopause predictions from two MHD models during a geomagnetic storm and a quiet period

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Magnetopause location is an important prediction of numerical simulations of the magnetosphere, yet the models can err, either under-predicting or over-predicting the motion of the boundary.
Pauline M. Dredger   +2 more
doaj   +1 more source

Spontaneous Currents in a Bosonic Ring

open access: yesActa Physica Polonica A, 2016
Nonequilibrium dynamics of noninteracting bosons in a one-dimensional ring-shaped lattice is studied by means of the Kinetic Monte Carlo method. The system is approximated by the classical XY model (the kinetic term is neglected) and then the simulations are performed for the planar classical spins.
Makieła, Damian, Maśka, Maciej M.
openaire   +4 more sources

Ring currents in azulene [PDF]

open access: yesChemical Physics Letters, 2009
We propose a self consistent polarisable ion tight binding theory for the study of push–pull processes in aromatic molecules. We find that the method quantitatively reproduces ab initio calculations of dipole moments and polarisability. We apply the scheme in a simulation which solves the time dependent Schrodinger equation to follow the relaxation of ...
Paxton, Anthony   +2 more
openaire   +2 more sources

Which Parameter Controls Ring Current Electron Dynamics

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Predicting the electron population of Earth’s ring current during geomagnetic storms still remains a challenging task. In this work, we investigate the sensitivity of 10 keV ring current electrons to different driving processes, parameterised by the Kp ...
Bernhard Haas   +7 more
doaj   +1 more source

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