Space environment is all the environment effecting based-space action, including all kinds of energy, electric particles, neutral particles, electromagnetism radiation of different wave bands, magnetic field, micro-meteor, space fragment, temperature and micro-gravity field and so on.
Two types of mechanisms of extracting energy from a rotating black hole by magnetic field, the Blandford-Znajek (BZ) process and magnetic coupling (MC) process, are investigated in detail based on the theory of the black hole magnetosphere, and the electromagnetic model for jet power extracted from the inner region of the accretion disc by large scaled magnetic field is proposed in this thesis.
In addition, we find that the very steep emissivity produced the MC process is consistent with the recent observations of the nearby Seyfert I galaxy MCG-6-30-15.Secondly, the Poynting jet launched by a large scaled magnetic field from the standard thin disc is investigated, and the analytical expression for the jet power is derived.
In the second part, where we explore connections with Maxwell's equations, the main novelty is the treatment of the corresponding electro-magnetic boundary value problem by recasting it as a 'half' Dirichlet problem for a suitable Dirac operator.
At the end of the article, the method is tested on real magnetic field data measured by the German geoscientific research satellite CHAMP.
The stereo-structures of Roridin P and Isororidin P were established on the basis of one- and two-dimensional nuclear magnetic resonance (NMR) spectral analyses.
The synthesized compounds have been characterized on the basis of elemental analyses, infrared spectroscopy (IR), and nuclear magnetic resonance (NMR).
Two compounds were designed, synthesized, and characterized by 1H-nuclear magnetic resonance (1H-NMR), ultraviolet (UV)-visible, and matrix-assisted laser desorption/ionization (MALDI) mass spectra.