scholarly journals THE SECOND ORDER TRAJECTORIES AND TRANSFER FORMULAE IN CROSSED TOROIDAL ELECTRIC AND INHOMOGENEOUS MAGNETIC FIELDS

1981 ◽  
Vol 30 (8) ◽  
pp. 1011
Author(s):  
CHEN REN-SHU ◽  
XIMEN JI-YE
Keyword(s):  
Magnetic Fields ◽  
Second Order

Heating the Solar Corona

2005 ◽  
Vol 13 ◽  
pp. 124-124
Author(s):  
L. C. Woods
Keyword(s):  
Magnetic Fields ◽  
Solar Corona ◽  
Thermal Energy ◽  
Second Order ◽  
Temperature Gradients ◽  
Strong Magnetic Fields ◽  
Typical Temperature

A typical temperature for the quiet solar corona is ~ 1.5 x 106K, whereas the photosphere – the likely source of the thermal energy – has a temperature less than 6 × 103 K. Although many theories have been advanced to explain why the corona is so much hotter than the photosphere, this old problem remains unsolved. However, there is a mechanism based on second-order transport that may provide the answer, or at least part of the answer. This process, described by the author in Thermodynamic inequalities in gases and magnetoplasmas, John Wiley & Sons Ltd, 1996, causes heat to be transported across strong magnetic fields up temperature gradients.

MICROWAVE PULSED FIELD EFFECTS ON DYNAMICS OF FLUXONS IN THE CRITICAL STATE

2000 ◽  
Vol 14 (25n27) ◽  
pp. 2846-2851
Author(s):  
A. AGLIOLO GALLITTO ◽  
M. GUCCIONE ◽  
M. LI VIGNI
Keyword(s):  
Magnetic Fields ◽  
Critical State ◽  
Second Harmonic ◽  
Second Order ◽  
Experimental Results ◽  
Hysteretic Behavior ◽  
Time Response ◽  
Pulsed Field ◽  
Harmonic Emission ◽  
Field Effects

We report experimental results on microwave second harmonic emission in different superconductors in the critical state, exposed to intense pulsed mw magnetic fields. We show that the second order response of some superconducting samples shows a magnetic hysteretic behavior. We suggest that this behavior is related to non-equilibrium phenomena induced by the mw pulses. In particular, it may be ascribed to the different time response of the fluxons in the reverse and direct critical state.

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