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A metalinguagem de Henri Pousseur: Échos de Votre Faust
(Universidade Estadual Paulista (Unesp), 2022-01-21)
The main objective of the following work is to analyze the satellite works of the cycle Échos de Votre Faust, by Henri Pousseur, from a metalinguistic perspective, relating them to the original scenes of the opera Votre ...
Height variation of gaps in 150‐km echoes and whole atmosphere community climate model electron densities suggest link to upper hybrid resonance
(American Geophysical Union, 2020-01)
Radar echoes from the daytime lower F region near the magnetic equator, so-called 150-km echoes, have been puzzling researchers for decades. Neither the mechanisms that generate the enhanced backscatter at very high ...
Spectral parameter estimation of CAT radar echoes in the presence of fading clutter
(American Geophysical Union, 1982-07)
The 430 MHz, 2 MW radar at the Arecibo Observatory is currently being used as a stratospheric-troposheric (ST) radar. One of the problems in the automatic analysis of the signals come from the very large amplitude of the ...
Sudden disappearance of vhf radar echoes from equatorial e-region irregularities
(Council of Scientific and Industrial Research, 1977-01)
The Modified Range Time lntensity Technique for studying the height variation of the (back-scatter power of vhf radar echoes at Jicamarca has been used to show that the growth lime of E-region irregularities is less than ...
Using vertically pointing broad beam to measure atmospheric aspect sensitivity of VHF radar echoes
(1989)
Conventionally, atmospheric aspect sensitivlty of VHF radar echoes is measured using a narrow beam radar in order to avoid the complications due to broad beam effects. However, in this study, a new technique using beam ...
Loschmidt echo and the local density of states
(American Physical Society, 2009-10)
Loschmidt echo (LE) is a measure of reversibility and sensitivity to perturbations of quantum evolutions. For weak perturbations its decay rate is given by the width of the local density of states (LDOS). When the perturbation ...