نتایج جستجو برای: inversion method

تعداد نتایج: 1665860  

Journal: :فیزیک زمین و فضا 0
اسماعیل بایرام نژاد محمود میرزایی محمدرضا قیطانچی

earthquakes travel times inversion for determination of velocity structure of crust is one of the most important objectives in seismology. in the simultaneous inversion method, the parameters of earthquakes and velocity model are determined initially and are improved during inversion steps. in this study, we have used more than 22000 calculated travel times for first arrivals of 6000 earthquake...

2006
Y. Song Yulong Song Zhihua Ling

The pixel bootstrapping method is successful to be applied to implement the dot inversion without addition complex controls in LCoS with frame buffer pixels. The relations of common voltage modulation method and bootstrapping method are analyzed. The dot inversion in frame-by-frame addressing method is explained. The dot inversion and the data voltage loss compensation are implemented by bootst...

Journal: :int. journal of mining & geo-engineering 2015
maysam abedi hamid-reza siahkoohi ali gholami gholam-hossain norouzi

this study deals with the 3d recovering of magnetic susceptibility model by incorporating the sparsity-based constraints in the inversion algorithm. for this purpose, the area under prospect was divided into a large number of rectangular prisms in a mesh with unknown susceptibilities. tikhonov cost functions with two sparsity functions were used to recover the smooth parts as well as the sharp ...

Journal: :Academic journal of science and technology 2022

The shape inversion method can clearly invert the three-dimensional attitude of magnetic target, but needs to obtain position information target be measured. In order better determine information, a morphology is proposed, which fuses physical property results. center calculated by method; initial model set, module growth selection function established using L2 norm and distance constraint func...

Journal: :Electronic research archive 2021

<p style='text-indent:20px;'>Based on Gosper's algorithm, we present an approach to the telescoping of general sequences. Along this approach, propose a summation formula and bibasic extension Ma's inversion formula. From formulas, are able derive several hypergeometric elliptic identities.</p>

2012
G. T. Schuster

This paper presents a new traveltime inversion method based on the wave equation. In this new method, designated as wave-equation traveltime inversion (WT), seismograms are computed by any full-wave forward modeling method (we use a finitedifference method). The velocity model is perturbed until the traveltimes from the synthetic seismograms are best fitted to the observed traveltimes in a leas...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
m. elahi s. m. a. razavi z. baratian p. pezeshki

invert sugar is the result of sucrose of hydrolysis of sucrose by acid or enzyme, that is, the splitting of sucrose molecules into their glucose and fructose components.invert sugar is used in different industries such as; food industry, soft drinks and pharmaceutical, due to its special characteristics such as; sweetness level, moisture ability’s property, crystallization level and special tas...

Journal: :Journal of Geophysics and Engineering 2017

Journal: :Geophysical Journal International 2016

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