The study of evolution of magnetic field and electric currents in active regions of the Sun over a long-time interval is of interest for understanding the processes of energy accumulation and release in them, leading to various phenomena that affect space weather. In this study, based on the ...
A DC magnetic field between 2 and 400 mT is appl... B Dutoit,M Sjostrom - 《IEEE Transactions on Applied Superconductivity》 被引量: 44发表: 1999年 Relation between critical current and exponentnin Bi(2223)/Ag tapes Transport critical currents at and exponents n of the power law ...
The region surrounding the magnet in which the force of the magnet can be felt is called the extent of themagnetic field. Its SI unit is Tesla and it is named after the American Scientist Nikola Tesla. Gauss is the smaller unit of themagnetic field. Magnetic field lines generally originate ...
There is a simple relation between current helicity and the 伪 -effect. In the case of amplification of a mean magnetic field by the 伪 -effect (1) both fluctuating and mean magnetic fields possess current helicities, (2) the current helicities of fluctuating and mean magnetic fields have ...
The current-voltage relation along such magnetic field lines can be determined for simple profiles of the background ion density by invoking the condition of charge neutrality. For typical parameters, the current density is found to be a few times larger in the downward current region compared to...
Magnetohydrodynamic configurations with strong localized current concentrations and vortices play an important role in the dissipation of energy in space and astrophysical plasma. Within this work we investigate the relation between current sheets and vortex sheets in incompressible, stationary equilibria. ...
(TPD)of eddy current by directly measuring the distribution of interior magnetic field inside solid conductor.The research results indicate that TPD is relevant to the shape of coils and stimulating magnetic field in addition to the electrical conductivity and magnetic permeability of conductor as well...
(Bikson et al., 2004). The effects of tDCS depend on the orientation of the flowing current in relation to the axonal-dendritic axis of pyramidal neurons in the stimulated area, the strength of the applied current, and the polarity (Jefferys, 1995;Marshall et al., 2004;Nitsche et al.,...
The numerical model, which is briefly introduced, is used to study the cable performance by using experimentally obtained cable parameters like inter-strand (and bundle) contact resistance, strand critical current data as a function of magnetic field, temperature and applied axial strain, and external...
This paper clarifies two matters, the source of equation of Ω and the nature of current vector T, of T-Ω method in magnetostatic field analysis. First, we derive a new formula including T0 (T0 obtained from exciting current density Js is expressed as T0) from the Biot-Savart formula by...