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Your search keyword '"Lukyanenko, Dmitry"' showing total 31 results
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31 results on '"Lukyanenko, Dmitry"'

3. Joint Gravity and Magnetic Inversion Using CNNs' Deep Learning.

Author

Bai, Zhijing, Wang, Yanfei, Wang, Chenzhang, Yu, Caixia, Lukyanenko, Dmitry, Stepanova, Inna, and Yagola, Anatoly G.

Subjects
ARTIFICIAL neural networks, CONVOLUTIONAL neural networks, INVERSION (Geophysics), DEEP learning, GRAVITY, MACHINE learning, MAGNETIC fields
Abstract

Enhancing the reliability of inversion results has always been a prominent issue in the field of geophysics. In recent years, data-driven inversion methods leveraging deep neural networks (DNNs) have gained prominence for their ability to address non-uniqueness issues and reduce computational costs compared to traditional physically model-driven methods. In this study, we propose a GMNet machine learning method, i.e., a CNN-based inversion method for gravity and magnetic field data. This method relies more on data-driven training, and in the prediction phase after the model is trained, it does not heavily depend on a priori assumptions, unlike traditional methods. By forward modeling gravity and magnetic fields, we obtain a substantial dataset to train the CNN model, enabling the direct mapping from field data to subsurface property distribution. Applying this method to synthetic data and one-field data yields promising inversion results. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Some Features of the Asymptotic-Numerical Method for the Moving Fronts Description in Two-Dimensional Reaction-Diffusion Problems

Author

Volkov, Vladimir, Lukyanenko, Dmitry, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Dimov, Ivan, editor, Faragó, István, editor, and Vulkov, Lubin, editor

Published
2019
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5. Blow-Up of Fronts in Burgers Equation with Nonlinear Amplification: Asymptotics and Numerical Diagnostics

Author

Lukyanenko, Dmitry, Nefedov, Nikolay, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Dimov, Ivan, editor, Faragó, István, editor, and Vulkov, Lubin, editor

Published
2019
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7. Asymptotic-Numerical Method for the Location and Dynamics of Internal Layers in Singular Perturbed Parabolic Problems

Author

Volkov, Vladimir, Lukyanenko, Dmitry, Nefedov, Nikolay, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Dimov, Ivan, editor, Faragó, István, editor, and Vulkov, Lubin, editor

Published
2017
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8. Front Dynamics in an Activator-Inhibitor System of Equations

Author

Melnikova, Alina, Levashova, Natalia, Lukyanenko, Dmitry, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Dimov, Ivan, editor, Faragó, István, editor, and Vulkov, Lubin, editor

Published
2017
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9. Use of Asymptotics for New Dynamic Adapted Mesh Construction for Periodic Solutions with an Interior Layer of Reaction-Diffusion-Advection Equations

Author

Lukyanenko, Dmitry, Nefedov, Nikolay, Nikulin, Egor, Volkov, Vladimir, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Dimov, Ivan, editor, Faragó, István, editor, and Vulkov, Lubin, editor

Published
2017
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13. On the Unique Solvability of Inverse Problems of Magnetometry and Gravimetry.

Author

Stepanova, Inna, Lukyanenko, Dmitry, Kolotov, Igor, Shchepetilov, Alexey, and Yagola, Anatoly

Subjects
*INVERSION (Geophysics), *ALGEBRAIC equations, *INTEGRAL representations, *GRAVIMETRY, *INTEGRAL equations
Abstract

This article deals with the question of the unique solvability of systems of linear algebraic equations, to the solution of which many inverse problems of geophysics are reduced as a result of discretization when applying the methods of integral equations or integral representations. Examples are given of degenerate and nondegenerate systems of different dimensions that arise in the processing of magnetometric and gravimetric data from experimental observations. Conclusions are drawn about the methods for constructing the optimal grid of experimental observation points. [ABSTRACT FROM AUTHOR]

Published
2023
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24. Reconstruction algorithm of 3D surface in scanning electron microscopy with backscattered electron detector.

Author

Borzunov, Andrey A., Lukyanenko, Dmitry V., Rau, Eduard I., and Yagola, Anatoly G.

Subjects
*SCANNING electron microscopy, *ELECTRON microscopy, *ALGORITHMS, *DETECTORS, *SURFACE reconstruction
Abstract

A new technique for three-dimensional surface reconstruction of relatively smooth surface topography using the scanning electron microscopy with backscattered electron detector is considered. Experiments show high effectiveness of the method. [ABSTRACT FROM AUTHOR]

Published
2021
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27. О разрушении решений одного полного нелинейного уравнения ионно-звуковых волн в плазме с некоэрцитивными нелинейностями

Author

Корпусов, Максим Олегович, primary, Korpusov, Maxim Olegovich, primary, Лукьяненко, Дмитрий Витальевич, additional, Lukyanenko, Dmitry Vitalyevich, additional, Панин, Александр Анатольевич, additional, Panin, Alexander Anatolyevich, additional, Юшков, Егор Владиславович, additional, and Yushkov, Egor Vladislavovich, additional

Published
2018
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31. Blow-up phenomena in the model of a space charge stratification in semiconductors: analytical and numerical analysis.

Author

Korpusov, Maxim Olegovich, Lukyanenko, Dmitry V., Panin, Alexander A., and Yushkov, Egor V.

Subjects
*NUMERICAL analysis, *SEMICONDUCTORS, *SPACE charge, *NUMERICAL solutions to boundary value problems, *MATHEMATICAL physics, *MATHEMATICAL models
Abstract

The initial-boundary value problems for a Sobolev equation with exponential nonlinearities, classical, and nonclassical boundary conditions are considered. For this model, which describes processes in crystalline semiconductors, the blow-up phenomena are studied. The sufficient blow-up conditions and the blow-up time are analyzed by the method of the test functions. This analytical a priori information is used in the numerical experiments, which are able to determine the process of the solution's blow-up more accurately. The model derivation and some questions of local solvability and uniqueness are also discussed. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Published
2017
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