Results 11 to 20 of about 2,431 (270)
Quantification of the Writhe Number of the Evolution of Solar Filament Axes
The Astrophysical Journal, 2023 Solar filament eruptions often show complex and dramatic geometric deformation that is highly relevant to the underlying physical mechanism triggering the eruptions.
Zhenjun Zhou +5 more
doaj +2 more sources
Writhe distribution of stretched polymers [PDF]
Physical Review E, 2004 Motivated by experiments in which single DNA molecules are stretched and twisted we consider a perturbative approach around very high forces, where we determine the writhe distribution in a simple, analytically tractable model. Our results are in agreement with recent simulations and experiments.
Sinha, Supurna
openaire +4 more sources
The writhe of a self-avoiding polygon
Journal of Physics A: Mathematical and General, 1993 Summary: We discuss the writhe of a self-avoiding polygon on a lattice, as a geometrical measure of its entanglement complexity. We prove a rigorous result about the dependence of the absolute value of the writhe on the number \(n\) of edges in the polygon, and use Monte Carlo methods to estimate the distribution of the writhe both for all polygons ...
VANRENSBURG EJJ +4 more
openaire +3 more sources
The writhe of a self-avoiding walk
Journal of Physics A: Mathematical and General, 1994 Summary: The writhe of a self-avoiding walk in a three-dimensional space is the average over all projections onto a plane of the sum of the signed crossings. We compute this number using a Monte Carlo simulation. Our results suggest that the average of the absolute value of the writhe of self-avoiding walks increases as \(n^\alpha\), where \(n\) is the
ORLANDINI, ENZO +4 more
openaire +2 more sources
Self-avoiding walks with writhe [PDF]
Nuclear Physics B, 1997 20 pages, LaTex. Requires epsf and psfig. One included eps file.
Moroz, J. David, Kamien, Randall D.
openaire +3 more sources
The writhe of helical structures in the solar corona [PDF]
, 2010 Context. Helicity is a fundamental property of magnetic fields, conserved in ideal MHD. In flux rope geometry, it consists of twist and writhe helicity.
T. Torok (21821810) +2 more
core +6 more sources
The evolution of writhe in kink-unstable flux ropes and erupting filaments [PDF]
, 2014 The helical kink instability of a twisted magnetic flux tube has been suggested as a trigger mechanism for solar filament eruptions and coronal mass ejections (CMEs).
M.G. Linton (21826823) +5 more
core +7 more sources
Inferring the writhe of magnetic flux tubes from the evolution of active solar regions [PDF]
Geofísica Internacional, 2004 We study the long-term evolution of bipolar active regions in which the main polarities are observed to rotate one about the other along several solar rotations.
M.C. López Fuentes +3 more
doaj +2 more sources
Journal of Statistical Physics, 2011 17 pages two ...
Samuel, Joseph, Sinha, Supurna
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Frontiers in Neurology, 2022 BackgroundTo date, it remains difficult for clinicians to reliably assess the disease status of intracranial aneurysms. As an aneurysm's 3D shape is strongly dependent on the underlying formation processes, it is believed that the presence of certain ...
Norman Juchler +9 more
doaj +1 more source