Results 31 to 40 of about 22,027,746 (211)

Multifractal Analysis of Pore Structure and Evaluation of Deep-Buried Cambrian Dolomite Reservoir with Image Processing: A Case from Tarim Basin, NW China

open access: yesGeofluids, 2020
Reservoir pore space assessment is of great significance for petroleum exploration and production. However, it is difficult to describe the pore characteristics of deep-buried dolomite reservoirs with the traditional linear method because these rocks ...
Xiaojun Zhang   +3 more
doaj   +1 more source

Multifractal analysis for all [PDF]

open access: yesFrontiers in Physiology, 2015
Multifractal formalism and analysis have been described many times (Lopes and Betrouni, 2009). There are several approaches to the implementation of multifractal analysis and there numerous ways to present these (Olsen, 1995; Wendt et al., 2009; Ihlen, 2012). Ihlen's article, in the June 4th 2012 issue of Frontiers of Physiology, entitled “Introduction
openaire   +3 more sources

Multifractal formalisms for multivariate analysis [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019
Multifractal analysis, that quantifies the fluctuations of regularities in time series or textures, has become a standard signal/image processing tool. It has been successfully used in a large variety of applicative contexts. Yet, successes are confined to the analysis of one signal or image at a time (univariate analysis). This is because multivariate
Jaffard, Stéphane   +4 more
openaire   +3 more sources

Multifractal analysis of multiview 3D video with different quantization parameters applying histogram method [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
In this paper, multifractal properties of multiview 3D video are determined. Multifractal spectra are determined by using the histogram method. For the analysis of multiview video, long video traces are used, for multiview video with two views ...
Zeković Amela, Reljin Irini
doaj   +1 more source

Multifractal analysis of earthquake catalogues [PDF]

open access: yesGeophysical Journal International, 1995
SUMMARY We show that standard statistical analyses of earthquake Catalogues are not very useful tools for describing temporal variations of the seismic event clustering. A more appropriate approach is the rnultifractal analysis. In fact, if interarrival times between earthquakes are fractally distributed, this means that the behaviour of the catalogue ...
GODANO, Cataldo, CARUSO V.
openaire   +1 more source

Stability analysis in micro milling based on p‑leader multifractal method

open access: yes, 2022
The efficient stability analysis is beneficial to improving stability of processing and chatter suppression. The p‑leader multifractal method is an improvement of the traditional fractal method, which can clearly reflect the geometric structure ...
Zheng, Zehui   +5 more
core   +1 more source

The human genome: a multifractal analysis [PDF]

open access: yesBMC Genomics, 2011
Plusieurs études ont montré que les génomes peuvent être étudiés via un formalisme multifractal. Récemment, nous avons utilisé une approche multifractale pour étudier le contenu en information génétique du génome de Caenorhabditis elegans. Nous étudions ici la possibilité que le génome humain présente un comportement similaire à celui observé chez le ...
Pedro Moreno   +10 more
openaire   +4 more sources

Multifractal Analysis of Hydrologic Data Using Wavelet Methods and Fluctuation Analysis

open access: yesDiscrete Dynamics in Nature and Society, 2017
We study the multifractal properties of water level with a high-frequency and massive time series using wavelet methods (estimation of Hurst exponents, multiscale diagram, and wavelet leaders for multifractal analysis (WLMF)) and multifractal detrended ...
Tongzhou Zhao   +3 more
doaj   +1 more source

Multifractal Analysis of the Structure of Organic and Inorganic Shale Pores Using Nuclear Magnetic Resonance (NMR) Measurement

open access: yesJournal of Marine Science and Engineering, 2023
The multifractal structure of shale pores significantly affects the occurrence of fluids and the permeability of shale reservoirs. However, there are few studies on the multifractal characteristics of shale pores that distinguish between organic and ...
Rui Yang, Weiqun Liu, Lingren Meng
doaj   +1 more source

Wavelet Leaders in Multifractal Analysis [PDF]

open access: yes, 2007
The properties of several multifractal formalisms based on wavelet coefficients are compared from both mathematical and numerical points of view. When it is based directly on wavelet coefficients, the multifractal formalism is shown to yield, at best, the increasing part of the weak scaling exponent spectrum.
Jaffard, Stéphane   +2 more
openaire   +2 more sources

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