نتایج جستجو برای: fractal theory

تعداد نتایج: 803890  

2012
Weigen Chen Wanping Wang Qing Xia Bing Luo Licheng Li

In this paper, an artificial pollution test is carried out to study the leakage current of porcelain insulators. Fractal theory is adopted to extract the characteristics hidden in leakage current waveforms. Fractal dimensions of the leakage current for the security, forecast and danger zones are analyzed under four types of degrees of contamination. The mean value and the standard deviation of ...

Journal: :Physical review letters 2010
Hernán D Rozenfeld Chaoming Song Hernán A Makse

We show that renormalization group (RG) theory applied to complex networks is useful to classify network topologies into universality classes in the space of configurations. The RG flow readily identifies a small-world-fractal transition by finding (i) a trivial stable fixed point of a complete graph, (ii) a nontrivial point of a pure fractal topology that is stable or unstable according to the...

2010
Zhixiong Lu Lanying Zhao Xiaoqin Li Jun Yuan

The fractal interpolation theory was used to the research of road surface roughness, and its simulating method was proposed through the piecewise fractal model. The fractal interpolation model was established for the actual road surface roughness, its influential factors and their laws of influencing were also analyzed, and then the model accuracy was confirmed by the fractal parameters and the...

2004
Huai Li Ray Liu ShihChung B. Lo

The objective of this research is to model the mammographic parenchymal, ductal patterns and enhance microcalcifications using a fractal approach. According to the theory of deterministic fractal geometry, images can be modeled by deterministic fractal objects which are attractors of sets of two dimensional afflne transformations. In this paper, a methodology based on fractal image modeling is ...

2005
Saeed Mozaffari Karim Faez Hamidreza Rashidy Kanan

This paper presents a new method for isolated Farsi/Arabic characters and digits recognition. Fractal codes which are determined by a fractal encoding method are used as feature in this system. Fractal image compression is a relatively recent technique based on the representation of an image by a contractive transform for which the fixed point is close to the original image. Each fractal code c...

2009
Hernán D. Rozenfeld Chaoming Song Hernán A. Makse

We show that renormalization group (RG) theory applied to complex networks are useful to classify network topologies into universality classes in the space of configurations. The RG flow readily identifies a small-world/fractal transition by finding a trivial stable fixed point of a complete graph, and two unstable fixed points consisting of (i) a pure fractal topology and (ii) a fractal with s...

Journal: :آب و خاک 0
الناز رضائی آباجلو کامران زینال زاده

introduction: soil hydraulic conductivity is considered as one of the most important hydraulic properties in water and solutionmovement in porous media. in recent years, variousmodels as pedo-transfer functions, fractal models and scaling technique are used to estimate the soil saturated hydraulic conductivity (ks). fractal models with two subset of two (solid and pore) and three phases (solid,...

Journal: :International Journal of Astronomy and Astrophysics 2016

Journal: :Ergodic Theory and Dynamical Systems 2022

Abstract In this paper, we discuss a connection between geometric measure theory and number theory. This method brings new point of view for some number-theoretic problems concerning digit expansions. Among other results, show that each integer k , there is $M>0$ such if $b_{1},\ldots ,b_{k}$ are multiplicatively independent integers greater than M infinitely many whose base $b_{1},b_{2},\ld...

Journal: : 2023

The cardinal differences in the theoretical description of classical and quantum particles, contradictions probabilistic (Copenhagen School) deterministic (De Broglie - Bohm theory) interpretation mechanics, features entangled states are briefly discussed. It is assumed that strange properties pair can be explained by localization particles not 3D physical space, but domain a fractal space aris...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید