We report on progress in developing a magnetotelluric inversion method for two-dimensional anisotropic conductivity distribution. A standard two-dimensional model is discretized into a number of rectangular cells, each with a constant conductivity tensor, and the solution of the inverse problem is obtained by minimizing a global objective functional consisting of data misfit, a structural const...

ZTEM refers to the Z-axis tipper electromagnetic method. The method is an airborne magnetotelluric sounding based on difference in rocks’ resistivity using native field. effective exploring large-scale structures when ground fluctuant. paper introduces inversion algorithm of 2D named conjugate gradient This method, which avoids solving Jacobi matrix, very but not enough model divided into a big...

the deep internal structure of the crust can be determined using appropriate seismic and electromagnetic methods. the natural source magnetotelluric (mt) method is the most suitable electromagnetic technique for probing into the deep crust. a long period magnetotelluric data set obtained in the southern chilean andes is investigated in this paper. dimensionality analysis shows that the data may...

An inversion formula was developed by Bukhgeim and Kazantsev for attenuated fan-beam projections [Russian Academy of Science Siberian Branch: The Sobolev Institute of Mathematics (2002)]. The inversion formula was obtained by relating the attenuated fan-beam projections to unattenuated fan-beam projections and by trickily processing the unattenuated fan-beam projections. We show in this paper t...

a detailed standard magnetotelluric (mt) study was conducted to recognize brine bearing layers in depths of less than 2000 m in the northeast of iran close to the southeastern shore of the caspian sea. long and medium period natural-field mt methods have proved very useful for subsurface mapping purpose by determining the resistivity of the near surface structure. mt data were analyzed and mode...

Introduction Myocardial blood flow (MBF) measurement using arterial spin labeling (ASL) [1-4] suffers from a large apparent ASL signal in the LV blood pool due to inadvertent tagging of blood in the LA and/or LV. A high LV signal adjacent to myocardium may interfere with MBF measurements because of partial voluming and k-space truncation, and is a potential source of artifact, physiological noi...

We propose a method for Acoustic-to-Articulatory Inversion based on acoustic and articulatory ‘gestures’. A definition for these gestures along with a method to segment the measured articulatory trajectories and the acoustic waveform into gestures is suggested. The gestures are parameterized by 2D DCT and 2D-cepstral coefficients respectively. The Acoustic-to-Articulatory Inversion is performed...