Results 61 to 70 of about 629 (156)
Fractal and FractionalIn the current context of the global energy landscape, China is facing a growing challenge in oil and gas exploration and development. It is difficult to evaluate the log data because of the lithological composition of igneous rocks, which displays an ...
Shiyao Wang +3 more
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Multifractal properties of elementary cellular automata in a discrete wavelet approach of MF-DFA
EPL (Europhysics Letters), 2009 8 pages, 5 figures, 21 ...
Murguia, J. S. +2 more
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A criterion for the determination of optimal scaling ranges in DFA and MF-DFA
Physica A: Statistical Mechanics and its Applications, 2014 Abstract We develop a criterion based on a brute-force algorithm to systematically determine optimal fitting regions for fluctuation functions in Detrended Fluctuation Analysis (DFA) and Multifractal Detrended Fluctuation Analysis (MF-DFA). We analyze and compare results with several artificially generated time series with known parameters as ...
Gulich, Maximiliano Damián +1 more
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Condensed Matter Physics, 2013 The modification of the surface structure of the hybrid coating TiN/Al2O3 with a low-energy high-current electron beam (NCEB) is performed. The surface roughness is considered as a function of beam current.
A.D. Pogrebnjak +2 more
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Assessing the driving process of meteorological and agricultural drought in the Yellow River Basin
Journal of Hydrology: Regional StudiesStudy region: The Yellow River Basin. Study focus: This study examines six-month anomalies in precipitation (SPI), runoff (SRI), surface-layer soil moisture (SMI), and vegetation health (VHI), covering the period from 1990 to 2020. Multifractal detrended
Xiufen Gu +5 more
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MathematicsThe goal of this paper is to study the behavior of non-ferrous metal futures’ volatilities in Chinese future market by applying a multifractal perspective. In particular, in order to obtain key indicators that describe the characterization of non-ferrous
Tao Yin +3 more
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Multifractal variability in geoelectrical signals and correlations with seismicity: a study case in southern Italy [PDF]
Natural Hazards and Earth System Sciences, 2005 Multifractal fluctuations in the time dynamics of geoelectrical data, recorded in a seismic area of southern Italy, have been revealed using the Multifractal Detrended Fluctuation Analysis (MF-DFA), which allows to detect multifractality in nonstationary
L. Telesca, G. Colangelo, V. Lapenna
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Advances in Meteorology, 2013 The temporal scaling properties of the daily 0 cm average ground surface temperature (AGST) records obtained from four selected sites over China are investigated using multifractal detrended fluctuation analysis (MF-DFA) method.
Lei Jiang +4 more
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ISPRS International Journal of Geo-Information, 2017 The Loess Plateau in China is internationally known for its unique geographical features and has therefore been studied by many researchers. This research exploits the regional differences in the spatial morphological characteristics of Loess shoulder ...
Jianjun Cao +5 more
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The Hidden Order of Cosmic Rays: Fractal Scaling and Temporal Complexity
Fractal and FractionalThis article explores the temporal dynamics and fractal characteristics of cosmic ray (CR) intensity by conducting a comprehensive analysis of their intrinsic scaling properties.
Costas Varotsos
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