Results 31 to 40 of about 2,995 (164)

Generalized binomial multiplicative cascade processes and asymmetrical multifractal distributions [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
The concepts and models of multifractals have been employed in various fields in the geosciences to characterize singular fields caused by nonlinear geoprocesses.
Q. Cheng
doaj   +1 more source

Multifractal Interpolation of Universal Multifractals

open access: yes, 1997
LaTeX, 9 pages, no ...
Bar'yahtar, V. G.   +3 more
openaire   +2 more sources

Nonlinear Analysis of the U.S. Stock Market: From the Perspective of Multifractal Properties and Cross-Correlations with Comparisons

open access: yesFractal and Fractional
This study investigates the multifractal properties of daily returns of the Standard and Poor’s 500 Index (SPX), the Dow Jones Industrial Average (DJI), and the Nasdaq Composite Index (IXIC), the three main indices representing the U.S.
Chenyu Han, Yingying Xu
doaj   +1 more source

Fractal and multifractal characteristics of shale nanopores

open access: yesResults in Physics, 2021
Shale pore structure is an important factor in shale adsorption and percolation. To better characterize the pore structure of shales, this paper selects 24 shale core samples for high-pressure mercury intrusion (HPMI) test, and fractal theory and ...
Fuyong Wang, Yun Zai
doaj   +1 more source

A Holographic-Type Model in the Description of Polymer–Drug Delivery Processes

open access: yesPharmaceuticals
A unitary model of drug release dynamics is proposed, assuming that the polymer–drug system can be assimilated into a multifractal mathematical object.
Irina Nica   +11 more
doaj   +1 more source

Multifractal analysis of solar flare indices and their horizontal visibility graphs [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
The multifractal properties of the daily solar X-ray brightness, X<sub><i>l</i></sub> and X<sub><i>s</i></sub>, during the period from 1 January 1986 to 31 December 2007 which includes two solar cycles are ...
Z. G. Yu, V. Anh, R. Eastes, D.-L. Wang
doaj   +1 more source

Multifractal Structures and the Energy-Economic Efficiency of Chinese Cities: Using a Classification-Based Multifractal Method

open access: yesFractal and Fractional
Improper urban spatial structure can lead to problems such as traffic congestion, long commuting times, and diseconomies of scale. Evaluating the efficiency of urban spatial structure is an important means to enhance the sustainable development of cities.
Jiaxin Wang, Bin Meng, Feng Lu
doaj   +1 more source

Graph‐Theory Approach to Element Miscibility and Alloy Design

open access: yesAdvanced Science, EarlyView.
Graph and network theory enables pathway toward complex multiscale interactions between different elements for alloy design or interface engineering. Utilizing element's inherent properties and preferential interactivity, favorable mixed material formation, solubility and miscibility can be predicted.
Andrew Martin   +6 more
wiley   +1 more source

Percolation on a multifractal [PDF]

open access: yesPhysical Review E, 2004
We build a multifractal object and use it as a support to study percolation. We identify some differences between percolation in a multifractal and in a regular lattice. We use many samples of finite size lattices and draw the histogram of percolating lattices against site occupation probability. Depending on a parameter characterizing the multifractal
Corso, G.   +3 more
openaire   +3 more sources

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

open access: yesAgribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

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