Results 11 to 20 of about 351,816 (303)

Principles of Creation of Local Network for Lightning Discharge Observations on Active Volcanoes of Kamchatka Peninsula [PDF]

open access: yesE3S Web of Conferences, 2019
To investigate the thunderstorm activity according to electromagnetic radiation recorded data, it is necessary to create a local network which will be located near the Klyuchevskaya Sopka, Shiveluch and Tolbachik volcanoes.
Malkin Evgeniy   +6 more
doaj   +1 more source

Generalisable convolutional neural network model for radio wave propagation in tunnels

open access: yesIET Microwaves, Antennas & Propagation, 2023
Propagation models are essential for the prediction of received signal strength and the planning of wireless systems in a given environment. The vector parabolic equation (VPE) method has been widely applied to the modelling of radio wave propagation in ...
Siyi Huang, Shiqi Wang, Xingqi Zhang
semanticscholar   +1 more source

Study on the layered dusty plasma structures in the summer polar mesopause [PDF]

open access: yesAnnales Geophysicae, 2010
Traditional hydrodynamic equations are adopted to build a one-dimensional theoretical model to study the effect of gravity wave on layered dusty plasma structures formation and evolution near the polar summer mesospause region associated with polar ...
Hui Li   +4 more
doaj   +1 more source

An Extreme Solar Event of 20 January 2005: Properties of the Flare and the Origin of Energetic Particles [PDF]

open access: yes, 2008
The famous extreme solar and particle event of 20 January 2005 is analyzed from two perspectives. Firstly, using multi-spectral data, we study temporal, spectral, and spatial features of the main phase of the flare, when the strongest emissions from ...
V. Grechnev   +26 more
semanticscholar   +1 more source

Relations Between Microwave Bursts and Near-Earth High-Energy Proton Enhancements and Their Origin [PDF]

open access: yes, 2015
We further study the relations between parameters of bursts at 35 GHz recorded with the Nobeyama Radio Polarimeters during 25 years and solar proton events (Grechnev et al. in Publ. Astron. Soc. Japan65, S4, 2013a).
V. Grechnev   +10 more
semanticscholar   +1 more source

Statistical and simulation study on the separation in junction frequencies between ordinary (O) and extraordinary (X) wave in oblique ionograms

open access: yesEarth, Planets and Space, 2022
The most important aim in interpreting an oblique ionogram is to obtain the accurate Junction Frequencies (JFs) of the ordinary (O) and extraordinary (X) mode.
Sun FengJuan   +5 more
doaj   +1 more source

Winter thunderstorms in Kamchatka [PDF]

open access: yesE3S Web of Conferences, 2019
Winter thunderstorms in Kamchatka are rare meteorological phenomena. To investigate the nature of this phenomenon, time variations of quasistatic electric field and meteorological quantities at «Paratunka» observatory, IKIR FEB RAS (φ = 52:97° N; λ = 158:
Smirnov Sergey   +3 more
doaj   +1 more source

Generation of equations for shell models of turbulence in the Maple system [PDF]

open access: yesEPJ Web of Conferences, 2021
The paper describes a technology for the automated compilation of equations for shell models of turbulence in the computer algebra system Maple. A general form of equations for the coefficients of nonlinear interactions is given, which will ensure that ...
Feshchenko Liubov, Vodinchar Gleb
doaj   +1 more source

PAINLEV´E TEST OF A MAGNETOHYDRODYNAMICS SYSTEM [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2015
One approximation of magnetohydrodynamics equations, which describe the cosmic object’s magnetic field, is considered. The analytic properties of a nonlinear system are investigated by Painlev´e test.
G.M. Vodinchar   +2 more
doaj   +1 more source

Estimation earthquake occurrence probability in Kamchatka region based on seismological and complex of ionospheric precursors [PDF]

open access: yesEPJ Web of Conferences, 2021
In this paper the authors present the method of estimation of a region, waiting period and probability of strong earthquakes with KS ≥ 13.5 (M ≥ 6.0) in Kamchatka region based on the combination of mid-term and short-term predictive signs accompanying ...
Boganov Vadim, Pavlov Aleksey
doaj   +1 more source

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