Výsledky vyhledávání - "Yulia I. Koshkina"

Three‐dimensional inversion of airborne data with applications for detecting elongated subvertical bodies overlapped by an inhomogeneous conductive layer with topography

Autor: Dmitry S. Kiselev, Yuri G. Soloveichik, Denis V. Vagin, Marina G. Persova, Alexander M. Grif, Yulia I. Koshkina, Anastasia P. Sivenkova

Publikováno v: Geophysical Prospecting. 68:2217-2253

We propose the approach to 3D inversion of airborne electromagnetic data, which is intended for discovering subvertical bodies overlapped by essentially inhomogeneous conductive layers. The approach is based on the geometric inversion in which a geoe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::747e6c65077098454c80b47a2e051e30
https://doi.org/10.1111/1365-2478.12979

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Finite Element Modeling of the Time-harmonic Electromagnetic Field Scattering into an Axisymmetric Medium

Autor: Petr A. Domnikov, Yulia I. Koshkina, Maxim V. Ivanov

Publikováno v: 2021 Radiation and Scattering of Electromagnetic Waves (RSEMW).

A computational scheme based on the finite element method has been developed to simulate the propagation of a time-harmonic electromagnetic field excited by a logging tool coil in a horizontally layered medium. The influence of displacement currents

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9526a3a9a60cc89b14bc948c080bcb23
https://doi.org/10.1109/rsemw52378.2021.9494117

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An Approach to the Geometric 3D Inversion of Airborne EM Data for Detection and Geometrization of Local targets Overlapped by Laterally Inhomogeneous Layers

Autor: Yulia I. Koshkina, D.V. Vagin, A.P. Sivenkova, Dmitry S. Kiselev, Yuri G. Soloveichik, M.G. Persova

Publikováno v: Engineering and Mining Geophysics 2020.

Summary The paper proposes an approach to performing geometric 3D inversions of airborne EM data, which allows the detection and geometrization of local targets in complex geoelectrical media, i.e. in situations, when the targets response in the sign

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::570824a6bcc087d8b063341c910e78f7
https://doi.org/10.3997/2214-4609.202051090

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The Approaches to Geometric EM 3-D Inversion with Consideration for IP Effect in Survey with Electric Lines

Autor: Yulia I. Koshkina, Dmitry S. Kiselev, M.G. Persova, Yuri G. Soloveichik, D.V. Vagin, A.P. Sivenkova, O.S. Trubacheva

Publikováno v: GeoBaikal 2020.

Summary The paper is devoted to several variants of geometric 3-D inversions of EM data with finding the parameters of conductivity and chargeability of a geolelectrical model. The first variant is based on two-stage 3-D inversion, at the first stage

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41fcf50b4b5d71bf25435aa212a5f1f1
https://doi.org/10.3997/2214-4609.202052022

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