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 ...
The microstructures of Nb-Ti-Zr sheets were investigated to make clear the relation between the microstructures and the applied magnetic field vs critical current density characteristics. The results are summarized as follows: (1) The ratio of Jc(\varparallel)Jc(⊥) are in proportion as the rati...
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 ...
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...
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...
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 presents a general theory for the fields generated by a circular current loop and compares it with existing theories. The existing, general, closed solution for the vector magnetic field may be expressed in a number of seemingly different but equivalent forms. These relations offer alter...
Effects of magnetic field annealing on magnetic properties in ultrafine crystalline Fe-Cu-Nb-Si-B alloys The relation between magnetic field annealing and magnetic properties in Fe-based alloys called FINEMET, composed of an ultrafine grain structure, have bee... Y Yoshizawa,K Yamauchi - 《...
Probing the current-phase relation in Josephson point-contact junctions between [Math Processing Error]Pb0.6In[Math Processing Error]0.4 and [Math Processing Error]Ba0.6K[Math Processing Error]0.4(FeAs)[Math Processing Error]2 superconductors Valeriy A. Stepanov, Chengtian Lin, Renato S. Gonnelli &...
In the first case (2014-02-20), MESSENGER made an inbound magnetopause crossing at 1745 UT. The observations of proton flux (Fig.1a, b) and magnetic field (Fig.1c) show abrupt changes when the spacecraft entered the magnetosphere. According to the position (X = 1.51,Y = 0.2...