Quasi periodic
Reducibility of Periodic Quasi Periodic Systems
... of quasi-periodic nonlinear systems with time-invariant linear ...of quasi-periodic systems to approximate time-in- variant forms using a small parameter ...with quasi-periodic ...
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Search for Quasi periodic Oscillations of Spectral Variability with Jurkevich Technique
... We have analyzed the multi-wavelength observations taken from the database of Quasar 3C 273 hosted by ISDC (INTEGRAL Science Data Centre) with the Jurkevich technique, and presented the multi-wavelength spectral indices ...
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Finite-Difference Time-Domain Simulation of Light Propagation in 2D Periodic and Quasi-Periodic Photonic Structures
... spatial periodic evolution of the electromagnetic field inside of the environment with an arbitrary distribution of the dielectric ...in periodic and quasi-periodic ...
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Studies of Optical Properties of Symmetrical Quasi Periodic Photonic Crystals
... of periodic systems and quasi- periodic system ...the periodic system covers the spectral range between the two PBGs of the Thue-Morse ...
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Explicit error bounds for the α-quasi-periodic Helmholtz problem
... Diffraction gratings have been used, for example, in crystal- line silicon solar cells [1], gas sensors [2], high-intensity color displays [30], and medical x-ray imaging [3,4]. The gratings are also used on credit cards ...
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Quasi-periodic solutions for nonlinear wave equation with singular Legendre potential
... in various situations have been investigated by many authors; see [4–6, 8, 9, 17, 23, 25, 26] for references. For those kind of PDEs with nonlinearity containing spatial deriva- tive, like the KdV equations, Benjamin–Ono ...
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Quasi periodic pulsations in the gamma ray emission of a solar flare
... Quasi-periodic pulsations (QPP) of gamma-ray emission with a period of about 40 s are found in a single loop X-class solar flare on 2005 January 01 at pho- ton energies up to 2-6 MeV with the SOlar Neutrons ...
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Significance testing for quasi periodic pulsations in solar and stellar flares
... of quasi-periodic pulsations (QPPs) in solar and stellar flares has been the topic of recent ...significant periodic signals in power spectra, and properly accounts for red noise as well as the ...
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Quasi Periodic Pulsations in Solar Flares and the Earth's Ionosphere
... causing the current burst of reconnection to slow and stop, bringing the outflow fields together such that reconnection commences. This work was generalized by McLaughlin et al. (2012b), and it was found that the ...
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Quasi periodic solutions for non autonomous MKdV equation
... In the 1990s, the KAM theory has been generalized to infinite dimensional Hamiltonian pertur- bation, so as to prove that there are quasi-periodic solutions for some class of PDEs. The first KAM theory was ...
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Multi mode quasi periodic pulsations in a solar flare
... The examined QPP occurred in an X3.2-class solar flare on 14 May, 2013 that was situated on the north-east limb of the Sun at the position N08E77 in the active region NOAA 11748. The flare had a duration of two hours ...
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Stochastic Method for Non-Homogeneous Cycles Identification in Quasi-Periodic Signals
... A method for detecting non-homogeneous cycles in quasi-periodic signals was proposed. Such detection is made based on comparisons with a threshold and the estimation of the variance of inherent noise ...
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Multi wavelength spatially resolved analysis of quasi periodic pulsations in a solar flare
... We also exclude the interpretation of the observed quasi- periodic pulsations in terms of flare-induced slow magnetoa- coustic waves (see, e.g. McAteer et al. (2005)). The observed emission is clearly ...
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Statistical properties of quasi periodic pulsations in white light flares observed with Kepler
... We embark on a study of quasi-periodic pulsations (QPPs) in the decay phase of white-light stellar flares observed by Kepler. Out of the 1439 flares on 216 different stars detected in the short-cadence data ...
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Properties of quasi periodic pulsations in solar flares from a single active region
... Numerous MHD simulations have shown regimes of repeti- tive reconnection which do not require a periodic driver. These regimes are often referred to as “load / unload” or “magnetic drip- ping” mechanisms when ...
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The discovery of a persistent quasi-periodic oscillation in the intermediate polar TX Col
... other quasi-periodic light variations at simi- lar low ...high-amplitude quasi-periodic light variations in 2002. A prominent quasi-periodic oscillation (QPO) period at ∼5900 s ...
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A possible link between kHz quasi-periodic oscillations and the magnetospheric boundary
... The mass transfer from the normal star onto the compact object in both the neutron star and black hole low mass X-ray binaries (LMXBs) is generally realized via an accretion disk. The release of gravitational energy due ...
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Quasi periodic pulsations in the most powerful solar flare of cycle 24
... Quasi-periodic pulsations (QPP) are common in solar flares and are now regularly observed in stellar flares. We present the detection of two different types of QPP signals in the thermal emission light ...
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Study of Optical Responses in Hybrid Symmetrical Quasi-Periodic Photonic Crystals
... In this paper, we will study the optical properties of a symmetrical one-dimensional hybrid quasiperiodic structure constructed of Silver mean (Ag) structure sandwiched between two Bragg structures (Bg) having the form ...
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False Alarm Based Quasi Periodic Noise Removal in Digital Images
... acquisition. Periodic noise has extraordinary features like spatially dependent and sinusoidal in nature at multiples of special ...of quasi periodic ...
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