Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Oleg V. Pankratov"'
Autor:
Tatiana A. Gryazneva, Maksim A. Chumak, I. D. Evsikov, N. A. Djuzhev, Sergey V. Filippov, E.O. Popov, Gleb D. Demin, M. A. Makhiboroda, Oleg V. Pankratov, A.G. Kolosko
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
The paper presents a multiparameter experimental study of the multi-tip field emitter based on the array of silicon pyramidal microstructures. Emitter was created using standard silicon microfabrication process. Sample measurement was performed using
Publikováno v:
2021 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (ElConRus).
This paper presents the study of silicon microneedles patterns of formation by a method of anisotropic wet chemical etching in potassium hydroxide solution. Anisotropic etching speed dependencies from solute concentration and temperature have been ob
Autor:
Oleg V. Pankratov, Alexey Kuvshinov
Publikováno v:
Surveys in Geophysics. 37:109-147
Despite impressive progress in the development and application of electromagnetic (EM) deterministic inverse schemes to map the 3-D distribution of electrical conductivity within the Earth, there is one question which remains poorly addressed—uncer
Autor:
Oleg V. Pankratov, Alexey Kuvshinov
Publikováno v:
Geophysical Journal International. 200:1449-1465
Publikováno v:
GEOPHYSICS. 67:413-426
A 3‐D frequency‐domain solution based on a volume integral equation approach has been implemented to simulate induction log responses. In our treatment of the problem, we assume that the electrical properties of the bedding as well as the borehol
Publikováno v:
Geophysical Journal International. 137:630-650
SUMMARY We pursue in this paper the following goals. (1) Detailed study of the ocean eiect on geomagnetic ¢elds excited by Sq and Dst sources in spherical earth models. The investigated period range is from 6 hr to 10 days. Oceans and continents for
Publikováno v:
Earth, Planets and Space. 50:417-422
The objective of this paper is to construct a stable inversion scheme to determine the conductance of a buried inhomogeneous layer masked by sedimentary cover. We employ a model which incorporates a surface sheet of conductance S1 (x, y) and a buried
Publikováno v:
Journal of geomagnetism and geoelectricity. 49:1519-1539
We present a new, accurate, high-performance, wide-band three-dimensional (3-D) solver for the electromagnetic (EM) field scattering problem in an isotropic earth. The solver relates to those based on the volume integral equation (IE) approach and ex
Publikováno v:
Journal of geomagnetism and geoelectricity. 49:1541-1547
We have developed a modified Neumann series (MNS) technique to solve Maxwell's equations for three-dimensional anisotropic earth. We assume that both conductivity and dielectric permittivity are 3 × 3 matrices, elements of which are complex-valued f
Publikováno v:
Journal of geomagnetism and geoelectricity. 47:405-410
Magnetovariational data from thirty-seven sites in the northern Tohoku district of Japan are modeled quantitatively using a multi thin-sheet modelling program. The primary objective was to determine if current channeling of electromagnetic fields thr