Stationarity Diagnostics using Functional Expansion Tallies
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107388
Abstract: Abstract A methodology for determining fission source stationarity is presented that characterizes the behavior of higher order spatial moments of the fission source distribution using Functional Expansional Tallies (FET’s). The computation of these FET’s does… read more here.
Keywords: stationarity; using functional; stationarity diagnostics; diagnostics using ... See more keywords
Sequential monitoring for changes from stationarity to mild non-stationarity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Econometrics"
DOI: 10.1016/j.jeconom.2019.08.010
Abstract: Abstract We develop and study sequential testing procedures a la Chu et al. (1996) for on-line detection of changes in a time series from stationarity to mild forms of non-stationarity. The proposed tests are based on… read more here.
Keywords: stationarity; monitoring changes; non stationarity; sequential monitoring ... See more keywords
M-stationarity for a class of MPCCs in Lebesgue spaces
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Mathematical Analysis and Applications"
DOI: 10.1016/j.jmaa.2022.126167
Abstract: We show that an optimality condition of M-stationarity type holds for minimizers of a class of mathematical programs with complementarity constraints (MPCCs) in Lebesgue spaces. We apply these results also to local minimizers of an… read more here.
Keywords: stationarity; stationarity class; class mpccs; lebesgue spaces ... See more keywords
The dimensionless dissipation rate and the Kolmogorov (1941) hypothesis of local stationarity in freely decaying isotropic turbulence
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Mathematical Physics"
DOI: 10.1063/1.5019925
Abstract: An expression for the dimensionless dissipation rate was derived from the Karman-Howarth equation by asymptotic expansion of the second- and third- order structure functions in powers of the inverse Reynolds number. The implications of the… read more here.
Keywords: dimensionless dissipation; stationarity; dissipation rate; local stationarity ... See more keywords
Exploring non-stationarity patterns in schizophrenia: neural reorganization abnormalities in the alpha band.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of neural engineering"
DOI: 10.1088/1741-2552/aa6e05
Abstract: OBJECTIVE The aim of this paper was to characterize brain non-stationarity during an auditory oddball task in schizophrenia (SCH). The level of non-stationarity was measured in the baseline and response windows of relevant tones in… read more here.
Keywords: stationarity; sch patients; non stationarity; alpha band ... See more keywords
Testing the stationarity and convergence of CO2 emissions series in MENA countries
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Energy Sector Management"
DOI: 10.1108/ijesm-09-2018-0008
Abstract: Purpose This study aims to investigate the stationarity and convergence of CO2 emissions series in MENA countries. The stationarity and unit root properties of per capita carbon dioxide (CO2) emissions series are explored by an… read more here.
Keywords: convergence; stationarity; energy; co2 emissions ... See more keywords
AF-MNS: A Novel AM-FM Based Measure of Non-Stationarity
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2020.3041722
Abstract: Robust signal processing in any application depends on the representation and the understanding of the signals in hand. There is a plethora of signal processing methods, wherein choosing a method over others would depend on… read more here.
Keywords: based measure; measure non; mns novel; stationarity ... See more keywords
An Improved Stationarity Test Based on Surrogates
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2019.2931150
Abstract: Over the last years, several stationarity tests have been proposed. One of these methods uses time-frequency representations and stationarized replicas of the signal (known as surrogates) for testing wide-sense stationarity. In this letter, we propose… read more here.
Keywords: stationarity test; improved stationarity; test; stationarity ... See more keywords
High-Temperature Superconducting Magnetic Levitation Vehicles: Dynamic Characteristics While Running on a Ring Test Line
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Vehicular Technology Magazine"
DOI: 10.1109/mvt.2017.2700493
Abstract: In the long-distance operation of the high-temperature superconducting (HTS) magnetic levitation (maglev) systems, the dynamic characteristics of the vehicle are closely related to its security and stationarity, which require in-depth research to ensure its safe… read more here.
Keywords: stationarity; levitation; test line; running ring ... See more keywords
Ecological and methodological drivers of non‐stationarity in tree growth response to climate
Sign Up to like & getrecommendations! Published in 2022 at "Global Change Biology"
DOI: 10.1111/gcb.16470
Abstract: Radial tree growth is sensitive to environmental conditions, making observed growth increments an important indicator of climate change effects on forest growth. However, unprecedented climate variability could lead to non‐stationarity, that is, a decoupling of… read more here.
Keywords: drivers non; climate; non stationarity; tree growth ... See more keywords
Stationarity test of vibration signals with surrogate data and time–frequency analysis
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Structural Engineering"
DOI: 10.1177/1369433216677602
Abstract: The stationarity test of vibration signals is critical for the extraction of the signal features. In this article, the surrogate data with various time–frequency analysis methods are proposed for stationary test of vibration signals. The… read more here.
Keywords: stationarity; frequency; vibration; time ... See more keywords