Results 11 to 20 of about 23,173,603 (235)

Fault Diagnosis of Rolling Bearings using Multifractal Detrended Fluctuation Analysis and Mahalanobis Distance Criterion [PDF]

open access: yes, 2012
Vibrations of a defective rolling bearing often exhibit nonstationary and nonlinear characteristics which are submerged in strong noise and interference components.
Gu, Fengshou   +3 more
core   +3 more sources

Dynamics of Urban Fire Correlations with Detrended Fluctuation Analysis [PDF]

open access: yesJournal of Risk Analysis and Crisis Response (JRACR), 2011
To explore and understand the intrinsic dynamic mechanisms of urban fire system is an important prerequisite for the fire risk analysis and management. By analyzing the time series of urban fire system, it is helpful to achieve this goal.
Jinghong Wang
doaj   +1 more source

Extended Methodology for DFA and DCCA: Application of Automatic Search Procedure and Correlation Map to the Weierstrass-Mandelbrot Functions

open access: yesAnais da Academia Brasileira de Ciências, 2021
Detrended fluctuation analysis and detrended cross-correlation analysis are used in this study to identify and characterize correlated data. The objective of these two techniques is to separate different fluctuations from the contributions due to ...
EULER B.S. MARINHO   +2 more
doaj   +1 more source

Multiscale Adaptive Multifractal Detrended Fluctuation Analysis-Based Source Identification of Synchrophasor Data [PDF]

open access: yes, 2022
As a typical cyber-physical system, dispersed Phasor Measurement Units (PMUs) are networked together with advanced communication infrastructures to record the Distribution Synchrophasor (DS) which represents the states and dynamics of distribution power ...
Ko, Ryan K. L.   +7 more
core   +1 more source

Fintech market efficiency:a multifractal detrended fluctuation analysis [PDF]

open access: yes, 2023
The efficiency of the Fintech market is still an unverified issue. We aim to investigate the Fintech market efficiency for four S&P Kensho Fintech indices using the multifractal detrended fluctuation analysis (MF-DFA) method.
Shrestha, Keshab   +6 more
core   +1 more source

Efficiency of Asean-5 Markets: An Detrended Fluctuation Analysis

open access: yesMednarodno Inovativno Poslovanje, 2020
This study intends to analyse efficiency, in its weak form, in the financial markets of Indonesia, Malaysia, Philippines, Singapore, Thailand (Asean-5), and China, during the global pandemic (Covid-19).
Rui Dias   +2 more
doaj   +1 more source

Detrended Fluctuation Analysis (DFA).

open access: yes, 2022
Detrended Fluctuation Analysis (DFA).
Arun Kumar M. (13871050)   +1 more
core   +1 more source

A study on the possible usefulness of detrended fluctuation analysis of the electroencephalogram background activity in Alzheimer's disease [PDF]

open access: yes, 2008
We studied the EEG background activity of Alzheimer's disease (AD) patients with detrended fluctuation analysis (DFA). DFA provides an estimation of the scaling information and long-range correlations in time series. We recorded the EEG in 11 AD patients
Abasolo, Daniel   +7 more
core   +1 more source

Multifractal detrended fluctuation analysis of human EEG: preliminary investigation and comparison with the wavelet transform modulus maxima technique.

open access: yesPLoS ONE, 2013
Recently, many lines of investigation in neuroscience and statistical physics have converged to raise the hypothesis that the underlying pattern of neuronal activation which results in electroencephalography (EEG) signals is nonlinear, with self-affine ...
Todd Zorick, Mark A Mandelkern
doaj   +1 more source

Multi-fractal detrended fluctuation half-spectrum analysis of HRV

open access: yesThe Journal of Engineering, 2019
Electrocardiogram is a comprehensive reflection of cardiac electrical activity on the surface of the body. It is of great research value to analyse ECG signals and diagnose heart diseases.
Daoming Zhang   +3 more
doaj   +1 more source

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