Results 31 to 40 of about 41,145 (313)

Electron acceleration observed by the FAST satellite within the IAR during a 3 Hz modulated EISCAT heater experiment [PDF]

open access: yes, 2002
International audienceA quantitative analysis is presented of the FAST satellite electric field and particle flux data during an EISCAT heating experiment run on 8 October 1998.
T. R. Robinson (7590257)   +26 more
core   +1 more source

Electromagnetic manifestation of the lithosphere in the ULF-VLF range

open access: yesГеофизический журнал, 2012
Brief analysis of the current state of research in natural electromagnetic field at the Earth’s surface in the SLF-VLF range has been conducted. A set of estimations of field levels ratios of lithospheric and storm origin has been made. It has been shown
V. N. Uvarov
doaj   +1 more source

Scattering Characteristics of Targets above a Rough Surface in SAR Images

open access: yesInternational Journal of Antennas and Propagation, 2013
The modeling, simulation, and analysis of target characteristics are essential to a synthetic aperture radar (SAR) image-based autotarget recognition (ATR) system.
Bo Zhao, Tie Jun Cui
doaj   +1 more source

Excitation of plasma waves by unstable photoelectron and thermal electron populations on closed magnetic field lines in the Martian ionosphere [PDF]

open access: yesAnnales Geophysicae, 2005
It is argued that anisotropic electron pitch angle distributions in the closed magnetic field regions of the Martian ionosphere gives rise to excitation of plasma instabilities.
N. Borisov, N. Borisov, E. Nielsen
doaj   +1 more source

Radiofrequency pulse modulation of the penile dorsal nerve for the treatment of premature ejaculation: evaluation of effectiveness

open access: yesВестник урологии, 2023
Introduction.  Premature ejaculation (PE) is the second most common male sexual dysfunction with a significant negative impact on quality of life. A significant number of conservative and surgical methods for the treatment of PE are proposed, but their ...
Ya. B. Mirkin   +3 more
doaj   +1 more source

Cryogenic Systems for Astronomical Research in the Special Astrophysical Observatory of the Russian Academy of Sciences

open access: yesPhotonics, 2023
This article presents the main results and new plans for the development of receivers which are cooled cryogenically to deep cryogenic temperatures and used in optical and radio astronomy research at the Special Astrophysical Observatory of the Russian ...
Yurii Balega   +17 more
doaj   +1 more source

Spoof surface plasmon polaritons supported by ultrathin corrugated metal strip and their applications

open access: yesNanotechnology Reviews, 2015
In this review, we present a brief introduction on the spoof surface plasmons supported on corrugated metallic plates with nearly zero thickness. We mainly focus on the propagation characteristics of spoof surface plasmon polaritons (SPPs), excitation of
Gao Xi, Cui Tie Jun
doaj   +1 more source

Space-borne radar observation of near-surface wind effect on anomalously highly-directional backscattering of radio waves from aeolian processes of sand and dust transporting in desert regions [PDF]

open access: yesРадиофизика и электроника, 2020
Subject and purpose. The purpose of this work is to study the effect of wind on the anomalous scattering of radio waves during aeolian processes of sand and dust transporting. Мethods and methodology. The article analyzes the spatial variations of the
D.M. Bychkov   +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   +1 more source

Artificial optical emissions at HAARP for pump frequencies near the third and second electron gyro-harmonic [PDF]

open access: yes, 2005
International audienceHigh-power high-frequency radio waves beamed into the ionosphere cause plasma turbulence, which can accelerate electrons. These electrons collide with the F-layer neutral oxygen causing artificial optical emissions identical to ...
F. T. Djuth   +17 more
core   +1 more source

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