Results 31 to 40 of about 193,673 (231)

From Fractal Geometry to Fractal Analysis

open access: yesApplied Mathematics, 2016
Euclidian geometry pertained only to the artificial realities of the first, second and third dimensions. Fractal geometry is a new branch of mathematics that proves useful in representing natural phenomena whose dimensions (fractal dimensions) are non-integer values. Fractal geometry was conceived in the 1970s, and mainly developed by Benoit Mandelbrot.
Gabriele A. Losa   +4 more
openaire   +2 more sources

Determination of the Fractal Dimension of CO2 Adsorption Isotherms on Shale Samples

open access: yesGeofluids, 2022
The fractal theory has been widely applied to the analysis of gas adsorption isotherms, which are used for the pore structure characterization in unconventional reservoirs. Fractal dimension is a key parameter that can indicate the complexity of the pore
Hongyan Qi   +4 more
doaj   +1 more source

Fractal and multifractal analysis of PET-CT images of metastatic melanoma before and after treatment with ipilimumab [PDF]

open access: yes, 2015
PET/CT with F-18-Fluorodeoxyglucose (FDG) images of patients suffering from metastatic melanoma have been analysed using fractal and multifractal analysis to assess the impact of monoclonal antibody ipilimumab treatment with respect to therapy outcome ...
Breki, Christina-Marina   +6 more
core   +4 more sources

ANALYSIS ON A FRACTAL SET

open access: yesFractals, 2009
The formulation of a new analysis on a zero measure Cantor set C(⊂I = [0,1]) is presented. A non-Archimedean absolute value is introduced in C exploiting the concept of relative infinitesimals and a scale invariant ultrametric valuation of the form log ε-1 (ε/x) for a given scale ε > 0 and infinitesimals 0 < x < ε, x ∈ I\C.
Raut, Santanu, Datta, Dhurjati Prasad
openaire   +2 more sources

Fractal Fidelity as a signature of Quantum Chaos

open access: yes, 2007
We analyze the fidelity of a quantum simulation and we show that it displays fractal fluctuations iff the simulated dynamics is chaotic. This analysis allows us to investigate a given simulated dynamics without any prior knowledge.
D. Rossini   +7 more
core   +1 more source

Deterministic fractals: extracting additional information from small-angle scattering data

open access: yes, 2011
The small-angle scattering curves of deterministic mass fractals are studied and analyzed in the momentum space. In the fractal region, the curve I(q)q^D is found to be log-periodic with a good accuracy, and the period is equal to the scaling factor of ...
Anitas, E. M.   +3 more
core   +1 more source

A Comparative Study of Fractal Models Applied to Artificial and Natural Data

open access: yesFractal and Fractional
This paper presents an original and comprehensive comparative analysis of eight fractal analysis methods, including Box Counting, Compass, Detrended Fluctuation Analysis, Dynamical Fractal Approach, Hurst, Mass, Modified Mass, and Persistence.
Gil Silva   +9 more
doaj   +1 more source

Fractal Analysis Of Colors And Shapes For Natural And Urbanscapes URBANSCAPES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Fractal analysis has been applied in many fields since it was proposed by Mandelbrot in 1967. Fractal dimension is a basic parameter of fractal analysis.
J. Wang, S. Ogawa
doaj   +1 more source

Small-angle scattering from fat fractals

open access: yes, 2014
A number of experimental small-angle scattering (SAS) data are characterized by a succession of power-law decays with arbitrarily decreasing values of scattering exponents.
Anitas, Eugen M.
core   +1 more source

Understanding Fractal Analysis? The Case of Fractal Linguistics [PDF]

open access: yesComplexus, 2006
Terms such as ‘self-similarity’, ‘space filling’, ‘fractal dimension’, and associated concepts have different meanings to different people depending on their background. We examine how methodology in fractal analysis is influenced by diverse definitions of fundamental concepts that lead to difficulties in understanding fundamental issues.
Jelinek, Herbert F.   +5 more
openaire   +2 more sources

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