نتایج جستجو برای: avo inversion

تعداد نتایج: 44676  

2009
Alexander Dokukin

Estimates Calculating Algorithms have a long story of application to recognition problems. Furthermore they have formed a basis for algebraic recognition theory. Yet use of ECA polynomials was limited to theoretical reasoning because of complexity of their construction and optimization. The new recognition method “AVOpolynom” based upon ECA polynomial of simple structure is described.

Journal: :Journal of Geophysics & Remote Sensing 2014

Journal: :International Journal on Recent and Innovation Trends in Computing and Communication 2022

Cardiovascular diseases (CVDs) are the world's leading cause of death; therefore cardiac health human heart has been a fascinating topic for decades. The electrocardiogram (ECG) signal is comprehensive non-invasive method determining health. Various practitioners use ECG to ascertain critical information about heart. In this paper, noisy denoised based on Discrete Wavelet Transform (DWT) optimi...

Meisam Torab Mostaedi Mohammad Ali Moosavian Parissa Khadiv Parsi,

An experimental study of the phase inversion behavior of liquid-liquid dispersion has been conducted in a spray extraction column for systems of toluene / water, n-hexane/water, CCl4/water, toluene /water + glycerol (25 % wt), toluene + CCl4 (25 % wt) / water and toluene / acetic acid (5 % wt)/water. The effects of physical properties, mass transfer and column geometry...

Journal: :فیزیک زمین و فضا 0
اکو علیپور دانشجوی کارشناسی ارشد ژئومغناطیس-دانشگاه شاهرود علی نجاتی کلاته هیت علمی دانشگاه شاهرود، دانشکده معدن، نفت و ژئوفیزیک علیرضا عرب امیری هیت علمی دانشگاه شاهرود، دانشکده معدن، نفت و ژئوفیزیک

generally, the measured secondary field data is inverted into resistivity using two principal models; the homogeneous half-space model and the layered half-space model. while the homogeneous half-space inversion uses single frequency data, the inversion is done individually for each of the frequencies used, the multi-layer 1d inversion is able to take the data of all frequencies available into ...

Journal: :Revista brasileira de psiquiatria 2007
Felipe Filardi da Rocha Humberto Correa

Dear Editor, Post-traumatic stress disorder (PTSD) is an anxiety disorder that can arise after exposure to a terrifying event/ordeal in which severe physical harm occurred or was about to happen. PTSD symptoms include persistent re-experience of the trauma, avo idance o f t rauma-assoc ia ted s t imul i , and hyperarousal. In the present report, we describe a woman with PTSD whose symptoms were...

Inversion of magnetic data is an important step towards interpretation of the practical data. Smooth inversion is a common technique for the inversion of data. Physical bound constraint can improve the solution to the magnetic inverse problem. However, how to introduce the bound constraint into the inversion procedure is important. Imposing bound constraint makes the magnetic data inversion a n...

Amir Khacpai Hosein Abolghasemi, Hozhabr Sohbat zadeh Mohammad Ghannadi maragheh

In this paper, we studied effect of different parameters including density, viscosity, interfacial tension and solute transfer concentration on phase inversion hold-up. The results showed that change in phase density ratio had no effect on phase inversion hold-up. It also disclosed that the phase viscosity ratio was the most effective parameter affecting phase inversion hold-up and each phase h...

ژورنال: ژئوفیزیک ایران 2020
Mahjoobeh Meskaranian Peyman Pour Moghaddam

This study derives the discretized adjoint states full waveform inversion (FWI) in both time and frequency domains based on the Lagrange multiplier method. To achieve this, we applied adjoint state inversion on the discretized wave equation in both time domain and frequency domain. Besides, in this article, we introduce reliability tests to show that the inversion is performing as it should be ...

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