Results 71 to 80 of about 159,570 (208)

The nature of electron density enhancement over a wide altitude range during ionosphere heating experiments at EISCAT

Earth and Planetary Physics
During the course of ionospheric heating experiments, researchers at the European Incoherent Scatter Scientific Association (EISCAT) observed an apparent electron density enhancement.
Jun Wu, Jian Wu, Jie Feng, QingLiang Li, ShuJi Hao, ZhengWen Xu, HaiSheng Zhao, YaBin Zhang   +7 more
doaj   +1 more source

Longitudinal differences in the statistical characteristics of ionospheric spread-F occurrences at midlatitude in Eastern Asia

Earth, Planets and Space, 2019
Spread-F is known as the electron density inhomogeneous structures in F layer of ionosphere and can usually be classified as frequency spread-F (FSF) and range spread-F (RSF).
Ning Wang, Lixin Guo, Zonghua Ding, Zhenwei Zhao, Zhengwen Xu, Tong Xu, Yanli Hu   +6 more
doaj   +1 more source

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review. [PDF]

Sensors (Basel), 2022
Barrios-Ulloa A, Ariza-Colpas PP, Sánchez-Moreno H, Quintero-Linero AP, De la Hoz-Franco E.   +4 more
europepmc   +1 more source

Analysis of the efficiency of earthquake prediction based on the anomalous behavior of ionospheric parameters on the eve of earthquakes in the Kamchatka region

E3S Web of Conferences, 2018
A method is presented for short-term prediction of strong earthquakes, in which the precursors are considered the excess of current values of foF2 critical frequency of the ionospheric F2 layer over the median values in periods of perturbed state of the ...
Bogdanov Vadim, Pavlov Aleksey
doaj   +1 more source

The effect of differential refraction on wave propagation in rotating pulsar magnetospheres

, 2004
Refraction of wave propagation in a corotating pulsar magnetospheric plasma is considered as a possible interpretation for observed asymmetric pulse profiles with multiple components. The pulsar radio emission produced inside the magnetosphere propagates
Arendt, Arons, Arons, Asseo, Barnard, Blandford, Blaskiewicz, D. Fussell, Daugherty, Fussell, Gangadhara, Gupta, Hibschman, Hirano, Kennett, Luo, Lyne, Lyubarskii, McKinnon, Melrose, Melrose, Melrose, Mikhailovskii, Petrova, Q. Luo, Rankin, Ruderman, Stinebring, Sturrock, Usov, Weinberg, Weltevrede, Zhang   +32 more
core   +2 more sources

Calculation of seismic regime parameters on the basis of a probabilistic model of Kamchatka earthquake catalogue

E3S Web of Conferences, 2016
In the present paper on the basis of a probabilistic interpretation of the earthquake repetition law, simple formulas were obtained which allow us from the known number of earthquake events in a representative interval of energy class (magnitude) to ...
Bogdanov Vadim, Pavlov Aleksey
doaj   +1 more source

Nanoscale control of heat and spin conductance in artificial spin chains

, 2016
We describe a mechanism to control energy and magnetisation currents in an artificial spin-chain, consisting of an array of Permalloy nano-disks coupled through the magneto-dipolar interaction.
Borlenghi, Simone, Delin, Anna, Fransson, Jonas, Mahani, M. Reza   +3 more
core   +1 more source

Wave propagation and earth satellite radio emission studies [PDF]

Radio propagation studies of the ionosphere using satellite radio beacons are described. The ionosphere is known as a dispersive, inhomogeneous, irregular and sometimes even nonlinear medium. After traversing through the ionosphere the radio signal bears
Flaherty, B. J., Liu, C. H., Yeh, K. C.
core   +1 more source

On the Bending of Electromagnetic Micro-Waves below the Horizon [PDF]

, 1935
An interesting phase in the development of the modern radio technique are the experiments conducted during the last few years with very short wave-lengths.
Epstein, Paul S.
core  

Methods for spatial direction finding of geoacoustic signals at Mikizha Lake in Kamchatka

E3S Web of Conferences, 2018
In the framework of the work, a spatial analysis of geoacoustic emissions properties recorded by a hydroacoustic receiver in a shallow Mikizha Lake, Kamchatkskiy kray, is carried out. The features of geoacoustic pulse registration are considered, methods
Shcherbina Albert, Solodchuk Alexandra
doaj   +1 more source