Results 11 to 20 of about 3,039,671 (230)

Diffraction modelling of mobile radio wave propagation in built-up areas [PDF]

open access: yes, 1991
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis examines theoretical methods of modelling radio wave propagation in built-up areas, with particular application to mobile radio systems ...
Saunders, Simon Reza
core   +7 more sources

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

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

Energetic electron precipitation during substorm injection events: High-latitude fluxes and an unexpected midlatitude signature [PDF]

open access: yes, 2008
Geosynchronous Los Alamos National Laboratory (LANL-97A) satellite particle data, riometer data, and radio wave data recorded at high geomagnetic latitudes in the region south of Australia and New Zealand are used to perform the first complete modeling ...
Menk, F. W.   +28 more
core   +5 more sources

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

The Qujing incoherent scatter radar: system description and preliminary measurements

open access: yesEarth, Planets and Space, 2018
The Qujing incoherent scatter radar (QJISR), the first one in China with the geographic location (25.6°N, 103.8°E), was brought into operation since the spring of 2014.
ZongHua Ding   +4 more
doaj   +1 more source

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