Results 21 to 30 of about 88,950 (300)

Hybrid ICA – regression: automatic identification and removal of ocular artifacts from electroencephalographic signals

open access: yesFrontiers in Human Neuroscience, 2016
Electroencephalography (EEG) is a portable brain-imaging technique with the advantage of high-temporal resolution that can be used to record electrical activity of the brain.
Malik Muhammad Naeem Mannan   +2 more
doaj   +1 more source

Higher Moments Actually Matter: Spillover Approach for Case of CESEE Stock Markets

open access: yesMathematics, 2022
The interconnectedness of stock markets is an important topic in empirical research, as spillovers on financial markets matter for asset pricing, portfolio allocation, financial stability, and risk management. This research focuses on all four moments of
Tihana Škrinjarić
doaj   +1 more source

Kurtosis Constraints In Communication Over Fading Channels [PDF]

open access: yes, 2006
The kurtosis of a signal is a quantitative measure of how `peaky' it is. In this paper we consider two scenarios of communication over fading channels with kurtosis constraints: in the first, we analyze a non-coherent Rayleigh fading channel where the ...
Sibi Bhaskaran   +3 more
core   +1 more source

Research on gear crack diagnosis of the planet gear transmission

open access: yesThe Journal of Engineering, 2019
Objected to the planetary gear transmission, research on the fault diagnosis of gear cracks is mainly carried out with method of EEMD decomposition and Envelope demodulation.
Chao Ma   +3 more
doaj   +1 more source

Modelling Shot Lengths of Hollywood Motion Pictures with the Dagum Distribution

open access: yesStatistica, 2020
This paper demonstrates the three-parameter Dagum distribution provides a good fit for shot lengths in Hollywood films due to its ability to model a wide range of skewness and kurtosis values and a variety of tail behaviours by virtue of its two shape ...
Nick Redfern
doaj   +1 more source

Classification of RCS sequences based on KL divergence

open access: yesThe Journal of Engineering, 2019
Radar cross section (RCS) is an important characteristic of radar targets. The mean, variance, skewness, kurtosis, varying patterns of RCS sequences provide rich features for radar target classification.
Qiang Cheng, Li Chen, Yaolin Zhang
doaj   +1 more source

On the Quantification of the GNSS Signals’ Quality for RFI Assessment

open access: yesEngineering Proceedings, 2023
The performance of radio-frequency interference (RFI) detection and localization could be improved if they are applied on good quality inputs. RFI assessment is an important aspect of evaluating overall signal quality.
Naveed Ahmed
doaj   +1 more source

Persistence and Kurtosis in GARCH and Stochastic Volatility Models [PDF]

open access: yes, 2004
This article shows that the relationship between kurtosis, persistence of shocks to volatility, and first-order autocorrelation of squares is different in GARCH and ARSV models.
Ruiz Ortega, Esther   +4 more
core   +1 more source

Application of equivalent non-Gaussian excitation method for systems subjected to non-Gaussian random excitation with asymmetric probability distribution

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper presents an application of equivalent non-Gaussian excitation method for the response analysis of systems subjected to non-Gaussian random excitation with an asymmetric probability distribution. The non-Gaussian excitation is prescribed by the
Takahiro TSUCHIDA   +2 more
doaj   +1 more source

Monitoring of Tool Vibration for Magnetorheological Fluid Controlled Bar During Turning ff Hardened Aisi4340 Steel

open access: yesArchive of Mechanical Engineering, 2015
W ostatnich latach, w obróbce skrawaniem wzrasta zainteresowanie koncepcja toczenia na twardo, poniewaz moze ono zastapic tradycyjny proces toczenia, utwardzania i szlifowania stosowany przy wykonywaniu twardych, odpornych na zuzycie czesci metalowych ...
Paul P. Sam   +2 more
doaj   +1 more source

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