Results 81 to 90 of about 128,862 (220)

Fractal analysis of sound signals in SAMPO 3065 combine harvester [PDF]

open access: yesJournal of Agricultural Machinery, 2017
Introduction Nowadays, many studies were performed about noise source and its type and effects related to duration of sound emission. Most of these researches just report sound pressure level in frequency or time domain.
F Mahdiyeh Broujeni, A Maleki
doaj   +1 more source

Fractal dimensions for dissipative sets

open access: yesNonlinearity, 1997
For characteristic subsets of infinite binary shift spaces, we derive lower bounds for the Hausdorff dimension with respect to Gibbs measures. Using these estimates, we then obtain a more refined fractal analysis of dissipative phenomena for the dynamical system which inspired van Strien and Nowicki to construct Julia sets of positive Lebesgue measure.
Stratmann, B., Vogt, R.
openaire   +3 more sources

Graph fractal dimension and the structure of fractal networks

open access: yesJournal of Complex Networks, 2020
Abstract Fractals are geometric objects that are self-similar at different scales and whose geometric dimensions differ from so-called fractal dimensions. Fractals describe complex continuous structures in nature. Although indications of self-similarity and fractality of complex networks has been previously observed, it is challenging to
Pavel Skums, Leonid A. Bunimovich
openaire   +4 more sources

Modelling the Self-similarity in Complex Networks Based on Coulomb's Law [PDF]

open access: yes, 2014
Recently, self-similarity of complex networks have attracted much attention. Fractal dimension of complex network is an open issue. Hub repulsion plays an important role in fractal topologies.
Deng, Yong   +4 more
core  

Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake

open access: yes, 2013
The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated.
A Olemskoy   +38 more
core   +1 more source

Fractal Dimension of Fracture Surface in Rock Material after High Temperature

open access: yesAdvances in Materials Science and Engineering, 2015
Experiments on granite specimens after different high temperature under uniaxial compression were conducted and the fracture surfaces were observed by scanning electron microscope (SEM).
Z. Z. Zhang
doaj   +1 more source

Diagnosis of B-CLL Leukemia Using Fractal Dimension [PDF]

open access: yesJournal of Kerman University of Medical Sciences, 2017
Background:Leukemia is cancer of blood and bone marrow cells. In general, there are four types of leukemia: chronic myelogenous leukemia (CML), acute myeloid leukemia (AML), B-cell chronic lymphocytic leukemia (CLL) and acute lymphoblastic leukemia (ALL).
Tohid Yousefzadeh Hassanluie   +2 more
doaj  

Lower S-dimension of fractal sets

open access: yesJournal of Mathematical Analysis and Applications, 2011
The interrelations between (upper and lower) Minkowski contents and (upper and lower) surface area based contents (S-contents) as well as between their associated dimensions have recently been investigated for general sets in R^d (cf. [3]). While the upper dimensions always coincide and the upper contents are bounded by each other, the bounds obtained ...
openaire   +3 more sources

Target Detection Using Fractal Geometry [PDF]

open access: yes, 1991
The concepts and theory of fractal geometry were applied to the problem of segmenting a 256 x 256 pixel image so that manmade objects could be extracted from natural backgrounds.
Fuller, J. Joseph
core   +1 more source

A survey on fractal dimension for fractal structures [PDF]

open access: yesApplied Mathematics and Nonlinear Sciences, 2016
Abstract Along the years, the foundations of Fractal Geometry have received contributions starting from mathematicians like Cantor, Peano, Hilbert, Hausdorff, Carathéodory, Sierpiński, and Besicovitch, to quote some of them. They were some of the pioneers exploring objects having self-similar patterns or showing anomalous properties with
openaire   +2 more sources

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