Results 11 to 20 of about 24,560 (299)

Canonical Moments and Random Spectral Measures [PDF]

open access: yesJournal of Theoretical Probability, 2009
32 pages.
Gamboa, Fabrice, Rouault, Alain
openaire   +5 more sources

Spectral moments for the analysis of frequency shift, broadening, and wavevector anisotropy in a turbulent flow

open access: yesEarth, Planets and Space, 2017
Turbulence represents essentially random fluctuations that evolve both spatially and temporally, and appear in various geophysical and space science applications.
Y. Narita
doaj   +2 more sources

Spectral-Domain Method of Moments Analysis of Spatially Dispersive Graphene Patch Embedded in Planarly Layered Media

open access: yes, 2022
Anisotropic and spatially dispersive graphene patches of arbitrary shape embedded in planarly layered uniaxial media are analyzed using spectral-domain method of moments.
Minyu Gu (14361324)   +1 more
core   +1 more source

Spectral-domain method of moments for the modal analysis of line waveguides

open access: yes, 2023
A rigorous full-wave modal analysis based on the method of moments in the spectral domain is presented for line waveguides constituted by two-part impedance planes with arbitrary anisotropic surface impedances.
Walter Fuscaldo (15998801)   +5 more
core   +1 more source

Effects of Two Linguistically Proximal Varieties on the Spectral and Coarticulatory Properties of Fricatives: Evidence from Athenian Greek and Cypriot Greek

open access: yesFrontiers in Psychology, 2017
Several studies have explored the acoustic structure of fricatives, yet there has been very little acoustic research on the effects of dialects on the production of fricatives.
Charalambos Themistocleous
doaj   +1 more source

Asymptotically efficient estimation of spectral moments [PDF]

open access: yesIEEE Transactions on Signal Processing, 1995
The article studies parametric estimation of spectral moments of a zero-mean complex Gaussian stationary process immersed in independent Gaussian noise. With the merit of the maximum-likelihood (ML) approach as motivation, this work exploits a Whittle's (1953) type objective function that is able to capture the relevant features of the log-likelihood ...
José M. B. Dias, José M. N. Leitão
openaire   +1 more source

Moment-based Constrained Spectral Uplifting

open access: yesEurographics Symposium on Rendering, 2021
Lucia Tódová, Alexander Wilkie, and Luca ...
Tódová, Lucia   +2 more
openaire   +1 more source

An Efficient Stochastic Linearisation Procedure for the Seismic Optimal Design of Passive Control Devices

open access: yesFrontiers in Built Environment, 2020
The seismic response of structures is often enhanced by introducing passive control devices that can operate through the dissipation of the input energy or by modifying the dynamic characteristics of the main structure.
Giacomo Navarra   +2 more
doaj   +1 more source

Sparse block-structured random matrices: universality

open access: yesJournal of Physics: Complexity, 2023
We study ensembles of sparse block-structured random matrices generated from the adjacency matrix of a Erdös–Renyi random graph with N vertices of average degree Z , inserting a real symmetric d  ×  d random block at each non-vanishing entry. We consider
Giovanni M Cicuta, Mario Pernici
doaj   +1 more source

Spatial distribution of spectral parameters of high latitude geomagnetic disturbances in the Pc5/Pi3 frequency range [PDF]

open access: yesAnnales Geophysicae, 2010
We analyze spectral parameters of the geomagnetic disturbances within the 1–4 mHz (Pc5/Pi3) frequency range for 29 observatories from polar to auroral latitudes.
N. V. Yagova   +4 more
doaj   +1 more source

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