Giant magnetoresistance (GMR) sensor has been developed and widely applied to use as magnetic read head in data storage industry. This paper describes new applications of magnetic-field measurement with high spatial-resolution and high sensitivity to nondestructive evaluation and biomedical engineering. For nondestructive evaluation, the GMR sensor, used as magnetic sensor based on eddy-current...

the aim of this study is 3-d inversion of magnetic data acquired from the sorkheh-dizej iron-bearing region in zanjan province, iran, in order to determine the geometrical distribution of the buried magnetic sources. for this purpose, our program discretizes the subsurface region into vertical right rectangular prisms and uses the nonlinear marquardt-levenberg algorithm to optimize the unknown ...

Abstrad. Electrostatic plasma confinement and magnetic electrostatic plasma confinement (MEPC) have been studied for four decades. The multiple potential well hypothesis, postulated to explain high neutron yields from Hinch’s colliding beam experiment, has been supported by several pieces of evidence, but results were inconclusive. Magnetic shielding of the grid was developed to reduce the requ...

We investigate macroscopic entanglement in an infinite XX spin1 2 chain with staggered magnetic field, Bl = B + e −iπl b. Using single-site entropy and by constructing an entanglement witness, we search for the existence of entanglement when the system is at absolute zero, as well as in thermal equilibrium. Although the role of the alternating magnetic field b is, in general, to suppress entang...

In this work we theoretically reveal the huge local field enhancement in a so-called perfect plasmonic absorber. We study the power absorption of light in a planar grid modelled as an effective sheet with zero optical thickness. The key prerequisite of the total absorption is the simultaneous presence of both resonant electric and magnetic modes in the structure. We show that the needed level o...

[1] We present four companion digital models of the age, age uncertainty, spreading rates, and spreading asymmetries of the world’s ocean basins as geographic and Mercator grids with 2 arc min resolution. The grids include data from all the major ocean basins as well as detailed reconstructions of back-arc basins. The age, spreading rate, and asymmetry at each grid node are determined by linear...

The eeect of line overlap (blending) on broadband linear (NLP) and circular (NCP) polarisation in spectra of solar magnetic regions , especially sunspot umbrae, is explored in a systematic way, employing spectrum synthesis in polarised light on a grand scale over thousands of Angstrr oms. An extensive grid of theoretical Stokes IQU V spectra allows the discussion of the dependence of NLP and NC...

A detailed description for the solution of the Landau-Lifshitz-Gilbert equation with the finite element method is given. The use of implicit time integration schemes with proper preconditioning is reported. Simulations of a single phase magnetic nanoelement without surface roughness and a magnetic nanoelement with a granular structure are performed to investigate the influence of the microstruc...

In this paper, the dynamical contraction of magnetized clouds is studied from the run-away phase to the accretion phase throughout. Since the non-homologous gravitational contraction necessitates progressively ner spatial resolution, \nested grid technique" (Burger & Oliger 1984) is adopted. As a result, it is found that out ow driven by toroidal magnetic elds is occurred in the accretion phase...