Výsledky vyhledávání - "O. I. Akhmetov"

Propagation of Electromagnetic Waves with Frequencies of the Beta Time Signal Service Through the Ionosphere in Different States at High Latitudes

Autor: O. I. Akhmetov, O. V. Mingalev, V. B. Belakhovsky, Z. V. Suvorova, I. V. Mingalev

Publikováno v: Bulletin of the Russian Academy of Sciences: Physics. 85:224-229

A study is performed of ionospheric disturbances caused by an interplanetary shock wave on January 24, 2012, and its subsequent substorm. Results are presented from an analysis of how changes in the vertical electron density profile affect the amplit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae7e553f35fd8a3930acb8990ba1e6da
https://doi.org/10.3103/s1062873821020039

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Explicit Splitting Scheme for Maxwell’s Equations

Autor: Z. V. Suvorova, O. I. Akhmetov, Igor Mingalev, Oleg Mingalev

Publikováno v: Mathematical Models and Computer Simulations. 11:551-563

A new explicit scheme for the numerical integration of Maxwell’s equations in isotropic and anisotropic dielectrics and conductors is presented. In this scheme, the electric and magnetic fields are calculated at the same instants and at the same no

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1a964d66c44e053cf6d2dbf88c80cb4
https://doi.org/10.1134/s2070048219040094

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Solution of the Cauchy Problem for the Three-Dimensional Telegraph Equation and Exact Solutions of Maxwell’s Equations in a Homogeneous Isotropic Conductor with a Given Exterior Current Source

Autor: O. I. Akhmetov, V. S. Mingalev, Oleg Mingalev, Igor Mingalev

Publikováno v: Computational Mathematics and Mathematical Physics. 58:604-611

For the solution of the Cauchy problem for the linear telegraph equation in three-dimensional space, we derive a formula similar to the Kirchhoff one for the linear wave equation (and turning into the latter at zero conductivity). Additionally, the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9efa17855c9dd28c4f89dc6fdb76a9e
https://doi.org/10.1134/s0965542518040036

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Transverse resonance in the high-latitude section of the Earth–ionosphere waveguide during the solar eclipse of March 20, 2015

Autor: A. A. Galakhov, O. I. Akhmetov

Publikováno v: Geomagnetism and Aeronomy. 57:618-623

The spectra of radio atmospheric signals (spherics) recorded simultaneously at two observatories of the Polar Geophysical Institute, Lovozero (67.97° N, 35.08° E) and Barentsburg (78.08° N, 14.22° E), during the solar eclipse on March 20, 2015 ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f7caf11eac8b84a698b4a7c7d840ec1
https://doi.org/10.1134/s0016793217050085

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Features of application of the extremely-low-frequency–very-low-frequency atmospherics spectrum analyzer for monitoring the earth–ionosphere waveguide state

Autor: O. I. Akhmetov, A. A. Galakhov, V. I. Kirillov

Publikováno v: Instruments and Experimental Techniques. 59:437-441

Features of the operation algorithm of the atmospherics spectrum analyzer and its application for diagnosing the earth–ionosphere waveguide are discussed. It is shown that the selected structure of the spectrum analyzer is expedient. The results ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ec8b4bc4b01a9e95402afdae80c1afc
https://doi.org/10.1134/s0020441216020196

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Measurements of the orthogonal magnetic components of the pulse component of infralow and very low electromagnetic fields at svalbard

Autor: A. A. Galakhov, O. I. Akhmetov, V. I. Kirillov

Publikováno v: Instruments and Experimental Techniques. 56:706-710

A complex of equipment for recording three components Hx, Hy, and Hz of the pulse component of an electromagnetic field in the range of infralow-very low frequencies, which is incorporated in the geophysical observatory of the Polar Geophysical Insti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42374d3b127eda2eafe02bfd902c128d
https://doi.org/10.1134/s0020441213060031

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Global lightning formation at a minimum and maximum of solar activity according to the observations of the Schumann resonance on the Kola Peninsula

Autor: O. I. Akhmetov, M. I. Beloglazov

Publikováno v: Geomagnetism and Aeronomy. 50:781-787

On the basis of the two-component measurements of the atmospheric noise electromagnetic field on the Kola Peninsula, a change in the first Schumann resonance (SR-1) as an indicator of global lightning formation is studied depending on the level of ga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81778d658e638bbce1f744bdb4d1b907
https://doi.org/10.1134/s0016793210060095

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A liquid microbarograph

Autor: S. V. Pil’gaev, Yu. V. Fedorenko, O. I. Akhmetov, D. V. Dneprovskii

Publikováno v: Instruments and Experimental Techniques. 53:750-754

A liquid microbarograph has been designed for continuous recording of variations in the atmospheric pressure with characteristic times ranging from 0.25 s to a few hours with a resolution of 0.02 Pa or better. The instrument is based on a sensor comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c6b34e71e173cb5fe889f048ea6ee55
https://doi.org/10.1134/s0020441210050258

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