Results 1 to 10 of about 130,460 (340)

Effects of surface structure deformation on static friction at fractal interfaces

, 2013
The evolution of fractal surface structures with flattening of asperities was investigated using isotropically roughened aluminium surfaces loaded in compression. It was found that asperity amplitude, mean roughness and fractal dimension decrease through
Einav, Itai, Gan, Yixiang, Hanaor, Dorian A H   +2 more
core   +1 more source

Fractal Dimensions of Particle Size Distribution in Littoral Sandstones of Carboniferous Donghetang Formation in Hade Oilfield, Tarim Basin, NW China

Fractal and Fractional
Fractal theory of particle size distribution (PSD) is a widely used approach in soil science. However, fractal studies on sandstone PSDs are scarce in sedimentology and geology.
Rui Yuan, Qi Sun, Manli Zhan, Wenlu Liu, Ye Sun, Siyi Wang, Yufei Yuan   +6 more
doaj   +1 more source

Use the information dimension, not the Hausdorff [PDF]

, 2005
Multi-fractal patterns occur widely in nature. In developing new algorithms to determine multi-fractal spectra of experimental data I am lead to the conclusion that generalised dimensions $D_q$ of order $q\leq0$, including the Hausdorff dimension, are ...
Roberts, A. J.
core   +1 more source

Fractal Growth from Local Instabilities

, 2000
We study, both with numerical simulations and theoretical methods, a cellular automata model for continuum equations describing growth processes in the presence of an external flux of particles. As a result of local instabilities we find a fractal regime
Cafiero, Raffaele, Caldarelli, Guido
core   +2 more sources

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

Journal 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, Mohammad Reza Rezaie, Zahra Rostami   +2 more
doaj  

Fractal-Based Modeling and Spatial Analysis of Urban Form and Growth: A Case Study of Shenzhen in China

ISPRS International Journal of Geo-Information, 2020
Fractal dimension curves of urban growth can be modeled with sigmoid functions, including logistic function and quadratic logistic function. Different types of logistic functions indicate different spatial dynamics.
Xiaoming Man, Yanguang Chen
doaj   +1 more source

NMR and SEM fractal dimensions explore shale pore structure taking the Upper Paleozoic shale in Ordos Basin as an example.

PLoS ONE
In this paper, the fractal dimension is calculated by extracting pore parameters from SEM images and NMR experimental data, the pore structure heterogeneity in plane and space is comprehensively discussed, and the relationship between the fractal ...
Keying Zhao, Zhanghua Zhang
doaj   +1 more source

𝑘-dimensional regularity classifications for 𝑠-fractals [PDF]

, 1988
Miguel Ángel Martı́n, Pertti Mattila
openalex   +1 more source

Intermittence and fractal dimensionality in multiple particle creation processes [PDF]

, 1987
Igor M. Dremin
openalex   +1 more source

Critical (percolation) behaviour and fractal dimension of aggregates in immunological agglutination reaction [PDF]

, 1988
Vadim A. Markel, M. I. Stokman
openalex   +1 more source