نتایج جستجو برای: gravity data (baranov

تعداد نتایج: 2464351  

Journal: :Zootaxa 2014
Viktor Baranov Trond Andersen Evgeny Perkovsky

The genus Palaeoboreochlus Baranov et Andersen, n. gen. is erected based on P. inornatus Baranov et Andersen, n. sp. described from a male found in Late Eocene Rovno amber. The new genus groups with Boreochlus Edwards in the tribe "Boreochlini".

Journal: :فیزیک زمین و فضا 0
عبدالحمید انصاری دانشیار، ژئوفیزیک اکتشافی، دانشکده مهندسی معدن و متالورژی، دانشگاه یزد، ایران کمال علمدار دانشجوی دکتری اکتشاف معدن، دانشکده معدن، نفت و ژئوفیزیک دانشگاه صنعتی شاهرود، ایران ابوالقاسم کامکار روحانی دانشیار، دانشکده معدن، نفت و ژئوفیزیک دانشگاه صنعتی شاهرود، ایران

terracing is an operator that is applied to potential field data to produce regions of constant field amplitude that are separated by sharp boundaries. magnetic data are usually transformed into pseudo-gravity data (baranov, 1957) prior to the application of terracing. the objective of terracing is ‘to recast potential field maps into a geologic map like format’ (cordell and mccafferty 1989). t...

Journal: :Proceedings of the Institute of State and Law of the RAS 2020

Journal: :Revue des études slaves 2014

2008
Nicolás Rojas

The exact position analysis of a planar mechanism reduces to compute the roots of its characteristic polynomial. Obtaining this polynomial almost invariably involves, as a first step, obtaining a system of equations derived from the independent kinematic loops of the mechanism. The use of kinematic loops to this end has seldom been questioned despite deriving the characteristic polynomial from ...

Journal: :فیزیک زمین و فضا 0
کیلان راست بین دانشگاه آزاد همدان سعید وطن خواه دانشگاه تهران وحید ابراهیم زاده اردستانی استاد گروه فیزیک زمین

in this paper the inversion of gravity data using l1–norm stabilizer is considered. the inversion is an important step in the interpretation of data. in gravity data inversion, the goal is to estimate density and geometry of the unknown subsurface model from a set of known observation measured on the surface. commonly, rectangular prisms are used to model the subsurface under the survey area. t...

Journal: :فیزیک زمین و فضا 0
naeim mousavi ph.d. candidate, institute of geophysics, university of tehran, tehran, iran vahid ebrahimzadeh ardestani professor, institute of geophysics, university of tehran, tehran, iran

the s-transform has widely been used in the analysis of non-stationary time series. a simple method to obtain depth estimates of gravity field sources is introduced in this study. we have developed a new method based on the spectral characteristics of downward continuation to estimate depth of structures. this calculation procedure is based on replacement of the fourier transform with the s-tra...

Journal: :فیزیک زمین و فضا 0
a safari department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran m.a sharifi department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran h amin department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran i foroughi department of surveying and geomatics engineering, university college of engineering, university of tehran, tehran, iran

gravity acceleration data have grand pursuit for marine applications. due to environmental effects, marine gravity observations always hold a high noise level. in this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. on the one hand, harmonic spline functions have great capability for local gravity ...

2008
Serguei Baranov

Interim Reports on work of the International Institute for Applied Systems Analysis receive only limited review. Views or opinions expressed herein do not necessarily represent those of the Institute, its National Member Organizations, or other organizations supporting the work. Abstract This paper presents a software package EDGE, an Earthquake and Damage Generator/ Estimator for Toscana, Ital...

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