Results 101 to 110 of about 22,124,812 (200)

Analysis of global geomagnetic variability [PDF]

Nonlinear Processes in Geophysics, 2007
The orthogonal field components from global INTERMAGNET magnetometer stations are studied via multifractal detrended fluctuation analysis to determine whether there are clear and consistent regional patterns in the behavior of the fluctuations. There are
V. Anh, Z.-G. Yu, J. A. Wanliss
doaj  

Nonlinear and multifractal behaviour of atmospheric parameters and particulate matter in South Africa

Discover Geoscience
This study investigates the nonlinear and multifractal behavior of atmospheric parameters and particulate matter (PM10) in South Africa. We employed nonlinear techniques such as Sample Entropy, Lyapunov Exponent, and Correlation Dimension, alongside ...
Samuel Ogunjo, Joshua Akinsusi, Adedayo Adelakun, Ibiyinka Fuwape   +3 more
doaj   +1 more source

Comparative Multifractal Detrended Fluctuation Analysis of Heavy Ion Interactions at a Few GeV to a Few Hundred GeV

Advances in High Energy Physics, 2016
We have studied the multifractality of pion emission process in 16O-AgBr interactions at 2.1 AGeV  and  60 AGeV, 12C-AgBr  and  24Mg-AgBr interactions at 4.5 AGeV, and 32S-AgBr interactions at 200 AGeV using Multifractal Detrended Fluctuation Analysis ...
Gopa Bhoumik, Argha Deb, Swarnapratim Bhattacharyya, Dipak Ghosh   +3 more
doaj   +1 more source

Analysis of Multifractal and Organization/Order Structure in Suomi-NPP VIIRS Normalized Difference Vegetation Index Series of Wildfire Affected and Unaffected Sites by Using the Multifractal Detrended Fluctuation Analysis and the Fisher-Shannon Analysis. [PDF]

Entropy (Basel), 2020
Ba R, Song W, Lovallo M, Lo S, Telesca L.   +4 more
europepmc   +1 more source

Multifractal Detrended Fluctuation Analysis on Friction Coefficient During the Friction Process

, 2017
The dynamic evolutionary law and tribological behavior of tribopair AISI 52100-AISI 1045 were studied via the multifractal method. Friction experiment was performed on a ring-on-disk tribometer under lubrication, and the multifractal detrended ...
Guodong Sun, Yuankai Zhou, Hua Zhu, Cong Ding   +3 more
core   +1 more source

Multifractal detrended fluctuation analysis of hydroclimatic series across Uganda in East Africa

Hydrology Research
This study applied Multifractal Detrended Fluctuation Analysis (MFDFA) to investigate the scaling behaviour of streamflow, precipitation, and potential evapotranspiration (PET) in nine Ugandan catchments during 1990–2013.
Moses Opwonya, Charles Onyutha
doaj   +1 more source

R/S analysis and DFA: finite sample properties and confidence intervals [PDF]

We focus on finite sample properties of two mostly used methods of Hurst exponent H estimation – R/S analysis and DFA. Even though both methods have been widely applied on different types of financial assets, only several papers have dealt with finite ...
Kristoufek, Ladislav
core  

A Modified Multifractal Detrended Fluctuation Analysis (MFDFA) Approach for Multifractal Analysis of Precipitation in Dongting Lake Basin, China

, 2019
Multifractal detrended fluctuation analysis (MFDFA) method can examine higher-dimensional fractal and multifractal characteristics hidden in time series. However, removal of local trends in MFDFA is based on discontinuous polynomial fitting, resulting in
Xike Zhang, Gui Zhang, Zifan Gui, Yurong Sun, Bo Zhang, Qiuwen Zhang, Luo Qiu   +6 more
core   +1 more source

Generating Synthetic Data Using 2D Multifractal Detrended Fluctuation Analysis Generative Adversarial Networks

IEEE Access
A novel 2-dimensional Multifractal Detrended Fluctuation Analysis (2D-MFDFA) as a discriminator for Generative Adversarial Networks (GAN) is presented in this work. The proposed approach demonstrates improved generated data quality at early iterations on
Charudatta Gurudas Korde, K. G. Shreeharsha, R. K. Siddharth, M. H. Vasantha, Y. B. Nithin Kumar   +4 more
doaj   +1 more source

Human Heart Beat Analysis Using a Modified Algorithm of Detrended Fluctuation Analysis Based on Empirical Mode Decomposition

, 2010
How to quantify the complexity of a physiological signal is a crucial issue for verifying the underlying mechanism of a physiological system. The original algorithm of detrended fluctuation analysis (DFA) quantifies the complexity of signals using the ...
葉家榮;范守仁;謝建興, YEH, JIA-RONG;FAN, SHOU-ZEN;SHIEH, JIANN-SHING   +1 more
core   +1 more source