Results 31 to 40 of about 3,039,671 (230)

Registration of Atmospheric-Electric Effects from Volcanic Clouds on the Kamchatka Peninsula (Russia)

Atmosphere, 2020
The paper is devoted to the description of observations over atmospheric and electric effects from volcanic eruptions on Kamchatka peninsula (Russia) and perspectives of their development.
Pavel P. Firstov, Evgeniy I. Malkin, Rinat R. Akbashev, Gennadiy I. Druzhin, Nina V. Cherneva, Robert H. Holzworth, Vladimir N. Uvarov, Ivan E. Stasiy   +7 more
doaj   +1 more source

Diagnostic study of geomagnetic storm-induced ionospheric changes over very low-frequency signal propagation paths in the mid-latitude D region [PDF]

Annales Geophysicae, 2022
We performed a diagnostic study of geomagnetic storm-induced disturbances that are coupled to the mid-latitude D region by quantifying the propagation characteristics of very low-frequency (VLF) radio signals from transmitters located in Cumbria, UK ...
V. U. J. Nwankwo, W. Denig, S. K. Chakrabarti, O. Ogunmodimu, O. Ogunmodimu, M. P. Ajakaiye, J. O. Fatokun, P. I. Anekwe, O. E. Obisesan, O. E. Oyanameh, O. V. Fatoye   +10 more
doaj   +1 more source

Методика выделения информативных признаков в сигналах геоакустической эмиссии

Информатика и автоматизация, 2019
Исследования геоакустической эмиссии в сейсмоактивном регионе на Камчатке показывают, что при подготовке землетрясений и последующей релаксации поля локальных напряжений в пункте наблюдений в геоакустических сигналах возникают ярко выраженные импульсные ...
Yuri Igorevich Senkevich, Yuri Valentinovich Marapulets, Olga Olegovna Lukovenkova, Alexandra Andreevna Solodchuk   +3 more
doaj   +1 more source

Methods and Algorithms of Subsurface Holographic Sounding

Remote Sensing, 2022
In our experiments, we develop and test portable multi-element receiver antenna arrays, electrically scanned in order to immediately obtain a recognizable image of subsurface objects.
A. V. Popov, A. E. Reznikov, A. I. Berkut, D. E. Edemsky, P. A. Morozov, I. V. Prokopovich   +5 more
doaj   +1 more source

Analysis of ionospheric parameters during Solar events and geomagnetic storms

E3S Web of Conferences, 2016
The paper shows new methods of analysis of ionospheric and magnetic data applying the models of multicomponent constructions (MCM models) developed by the authors.
Mandrikova Oksana, Polozov Yury, Solovev Igor, Fetisova Nadezhda   +3 more
doaj   +1 more source

Reconfigurable antennas and radio wave propagation at millimeter-wave frequencies [PDF]

, 2014
For the last decades we have been witnessing the evolution of wireless radio networks. Since new devices appear and the mobile traffic, as well as the number of users, grows rapidly, there is a great demand in high capacity communications with better ...
Semkin, Vasilii, Ferrero, Fabien, Oleg Platonov, Fabien Ferrero, Aimeric Bisognin, Cyril Luxey, Antti V. Räisänen, Martin Jacob, Mikko Kyrö, Bisognin, Aimeric, Kürner, Thomas, Jacob, Martin, Thomas Kurner, Luxey, Cyril, Räisänen, Antti V., Vasilii Semkin   +15 more
core   +1 more source

First results of atmospheric electricity measurements by CS110 electric field meter at Paratunka observatory, Kamchatka

E3S Web of Conferences, 2016
The results of continuous measurements of AEF potential gradient by CS110 fluxmeter at Paratunka observatory are presented.
Khomutov Sergey, Smirnov Sergey, Butin Stanislav, Babakhanov Ilkham   +3 more
doaj   +1 more source

An Underground Radio Wave Propagation Prediction Model for Digital Agriculture

Inf., 2019
Underground sensing and propagation of Signals in the Soil (SitS) medium is an electromagnetic issue. The path loss prediction with higher accuracy is an open research subject in digital agriculture monitoring applications for sensing and communications.
A. Salam
semanticscholar   +1 more source

Review of methodology to obtain parameters for radio wave propagation at low altitudes from meteorological data: New results for Auchi area in Edo State, Nigeria

Journal of King Saud University: Science, 2019
The surface refractivity, the refractivity gradient and effective earth radius factor (k-factor) are useful ingredients for predicting the local radio wave propagation conditions in the troposphere.
K. Ukhurebor, S. Azi
semanticscholar   +1 more source

Development of a methodology to estimate a region and waiting period for strong Kamchatka earthquakes based on seismic and ionospheric predictive signs [PDF]

E3S Web of Conferences, 2019
In this paper, an attempt is made to combine seismological and ionospheric predictive signs formed on the eve of earthquakes in order to develop a methodology for assessing the region and the time period of waiting for strong Kamchatka earthquakes with ...
Bogdanov Vadim, Pavlov Aleksey
doaj   +1 more source