Results 21 to 30 of about 135,586 (280)

Fractal Dimension Complexity of Gravitation Fractals in Central Place Theory

open access: yesScientific Reports, 2022
Abstract Settlement centers of various types, including cities, produce basins of attraction whose shape can be regular or complexly irregular (from the point of view of geometry). It depends, among others, on the properties of the space surrounding a city.
Banaszak, Michał   +3 more
openaire   +4 more sources

Influence of surface topography on three-dimensional fractal model of sliding friction

open access: yesAIP Advances, 2017
The purpose of this paper is to establish a three-dimensional model of sliding friction and to study the influence of surface topography fractal parameters on the model.
Wujiu Pan   +4 more
doaj   +1 more source

Feature extraction and identification of gas–liquid two-phase flow based on fractal theory

open access: yesSystems Science & Control Engineering, 2021
Due to the gas–liquid two-phase flow system with nonlinear characteristics, the fractal theory has a significant impact on nonlinear analysis, so the paper proposes applying the fractal theory to characterize the fractal characteristics of two-phase flow.
Chunling Fan   +4 more
doaj   +1 more source

Fractal-Cluster Theory and Its Applications for the Description of Biological Organisms

open access: yesEntropy, 2023
This article presents an overview of an alternative approach to the systematization and evolution of biological organisms on the basis of the fractal-cluster theory.
Vyacheslav Theodorovich Volov
doaj   +1 more source

Exotic topological order in fractal spin liquids [PDF]

open access: yes, 2013
We present a large class of three-dimensional spin models that possess topological order with stability against local perturbations, but are beyond description of topological quantum field theory. Conventional topological spin liquids, on a formal level,
Yoshida, Beni
core   +3 more sources

Hodge-de Rham theory on fractal graphs and fractals

open access: yesCommunications on Pure and Applied Analysis, 2014
We present a new approach to the theory of k-forms on self-similar fractals. We work out the details for two examples, the standard Sierpinski gasket and the 3-dimensional Sierpinski gasket, but the method is expected to be effective for many PCF fractals and also infinitely ramified fractals such as the Sierpinski carpet.
Aaron, Skye   +3 more
openaire   +2 more sources

Quantifying Fracture Dynamics in Clean Energy: A Novel Fractal Perspective [PDF]

open access: yesE3S Web of Conferences
Geothermal energy, as an emergent source of power, has consistently been a focal point of scholarly investigation both domestically and internationally, with a particular emphasis on the prediction and assessment of its extraction efficiency.
Ye Dayu, Liu Guannan, Feng Gao
doaj   +1 more source

Review on Fractal Analysis of Porous Metal Materials

open access: yesJournal of Chemistry, 2015
Porous metal materials are multifunctional lightweight materials and have been used widely in industry. The structural and functional characters of porous metal materials depend on the pore structure which can be described effectively by the fractal ...
J. Z. Wang   +4 more
doaj   +1 more source

Fractal-Based Research Approach for Lignocellulose-to-Ethanol Conversion

open access: yesBioResources, 2014
The microstructure of porous lignocellulose has irregularity, which represents self-similarity within the scope of a certain scale, and the conversion process of lignocellulose to bioethanol is complex.
Congcong Chi   +4 more
doaj   +1 more source

Fractal Analysis of Particle Distribution and Scale Effect in a Soil–Rock Mixture

open access: yesFractal and Fractional, 2022
A soil–rock mixture (SRM) is a type of heterogeneous geomaterial, and the particle distribution of SRM can be described by fractal theory. At present, it is difficult to quantify the fractal dimension of a particle size distribution and understand the ...
Xiaodong Fu   +5 more
doaj   +1 more source

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