Results 11 to 20 of about 211,167 (339)
The Innovation, 2022 How animals sense the geomagnetic field remains a mystery today. A remarkable diversity has been revealed in animal magnetoreception and several sophisticated models have been put forward in the past few decades, but none have been commonly accepted yet.
Can Xie
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Translational Oncology, 2021 Studies have shown that 9.4 Tesla (9.4 T) high-field magnetic resonance imaging (MRI) has obvious advantages in improving image resolution and capacity, but their safety issues need to be further validated before their clinical approval.
Xingxing Yang +7 more
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Turbulence-driven vortex-flow around a magnetic island
Nuclear Fusion, 2023 We predict a new state of plasma self-organization, in the presence of magnetic islands, namely turbulence-driven island vortex-flows, which are non-axisymmetric flows.
M. Leconte, Y.W. Cho
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Interplay among turbulence, flow and impurities for sustaining magnetic island
Nuclear Fusion, 2023 As ubiquitous structures in magnetized fusion plasmas, magnetic islands (MIs) would short-circuit adjacent magnetic flux surfaces and result in a reduced pressure gradient and fluctuations inside the island; it is widely accepted that due to the ...
Xi Feng +29 more
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Coalescence of Magnetic Islands [PDF]
Physical Review Letters, 1980 The process of coalescence of magnetic islands is investigated. For intermediate values of the resistivity eta, the reconnection rate M/sub s/ is independent of eta, although the reconnection process is basically different from a Petschek-type model. For very small values of eta the dynamics of the coalescence process is more complex with reconnection ...
Biskamp, D., Welter, H.
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Nuclear Fusion, 2023 TM1 nonlinear two-fluid simulations reveal key characteristics of density pump-out caused by pedestal-foot island formation when applying resonant magnetic perturbation (RMP).
Q.M. Hu +9 more
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Self-generated vortex flows in a tokamak magnetic island with a background flow
Nuclear Fusion, 2023 We present a gyrokinetic theory of self-generated E × B vortex flows in a magnetic island in a collisionless tokamak plasma with a background vortex flow.
G.J. Choi
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Non-linear effects in electron cyclotron current drive applied for the stabilization of neoclassical tearing modes [PDF]
, 2014 Due to the smallness of the volumes associated with the flux surfaces around the O-point of a magnetic island, the electron cyclotron power density applied inside the island for the stabilization of neoclassical tearing modes (NTMs) can exceed the ...
Ayten, B. +2 more
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Coalescence of Magnetic Islands
The Physics of Fluids, 1979 A detailed numerical analysis has been conducted of the instability described by Finn and Kaw in which parallel currents in neighboring islands tend to coalesce into larger units. The existence of this coalescence instability in the ideal magnetohydrodynamic limit is confirmed, but no evidence is found for a threshold in island width. The linear growth
Biskamp, D., Welter, H.
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On seed island generation and the non-linear self-consistent interaction of the tearing mode with electromagnetic gyro-kinetic turbulence [PDF]
, 2014 The multi-scale interaction of self-consistently driven magnetic islands with electromagnetic turbulence is studied within the three dimensional, toroidal gyro-kinetic framework. It can be seen that, even in the presence of electromagnetic turbulence the
Buchholz, Rico +6 more
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