Results 51 to 60 of about 159,570 (208)
Dependence of the F2-layer critical frequency median at midlatitudes on geomagnetic activity
Solar-Terrestrial Physics, 2017 We put forward a method of separating the geomagnetic activity contribution to the F2-layer critical frequency median, foF2med, at middle latitudes. It is based on the analysis of foF2, which is the ratio foF2med/foF2q in percent, where foF2q is the F2 ...
Deminov M.G. +3 more
doaj +1 more source
, 2017 Our previous paper outlined the general aspects of the theory of radio light curve and polarization formation for pulsars. We predicted the one-to-one correspondence between the tilt of the linear polarization position angle of the and the circular ...
Beskin, Vasily +2 more
core +1 more source
A computational model for path loss in wireless sensor networks in orchard environments. [PDF]
, 2014 A computational model for radio wave propagation through tree orchards is presented. Trees are modeled as collections of branches, geometrically approximated by cylinders, whose dimensions are determined on the basis of measurements in a cherry orchard ...
Anastassiu, Hristos T +6 more
core +3 more sources
Realistic performance measurement for body-centric spatial modulation links [PDF]
, 2015 Spatial Modulation is a new transmission mode which increases spectral efficiency by employing information-driven transmit antenna selection. This performance is realized at a reduced hardware complexity and cost because only a single radio-frequency ...
Castel, Thijs +2 more
core
Frequency Selective Buildings Through Frequency Selective Surfaces [PDF]
, 2011 This paper proposes the deployment of frequency selective surfaces (FSS) in indoor wireless environments and investigates their effect on radio wave propagation.
Raspopoulos, Marios, Stavrou, Stavros
core +1 more source
Transmission Line Analogy for Relativistic Poynting-Flux Jets [PDF]
, 2013 Radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C 303 have shown that one knot of this jet carries a {\it galactic}-scale electric current and that it is magnetically dominated.
Kronberg, P. P., Lovelace, R. V. E.
core +1 more source
Miniaturized Circularly Polarized Microstrip RFID Antenna Using Fractal Metamaterial
International Journal of Antennas and Propagation, 2013 A novel miniaturized circularly polarized (CP) microstrip antenna that can handle UHF band (920–925 MHz, corresponding to the assigned band for RFID in China) has been designed, fabricated, and measured in this paper.
Guo Liu, Liang Xu, Zhensen Wu
doaj +1 more source
Radio-wave propagation in the non-Gaussian interstellar medium
, 2005 Radio waves propagating from distant pulsars in the interstellar medium (ISM), are refracted by electron density inhomogeneities, so that the intensity of observed pulses fluctuates with time.
Blandford R. +13 more
core +2 more sources
Barometric effect of neutron component of cosmic rays at Antarctic station «Mirny»
Solar-Terrestrial Physics, 2016 The barometric effect of cosmic ray neutron component was estimated on the example of the Antarctic station Mirny. We used hourly data from continuous monitoring of neutron component and data from a local weather station for 2007–2014.
Kobelev P.G. +5 more
doaj +1 more source
Rain attenuation prediction model for terrestrial links incorporating wet antenna effects
IET Microwaves, Antennas & Propagation, 2023 Accurate prediction of rain attenuation is critical for the design of terrestrial line‐of‐sight link systems above 5 GHz, particularly for millimetre‐wave frequency.
Xin Zhang +6 more
doaj +1 more source