Results 11 to 20 of about 27,633 (264)

Stage division of urban growth based on logistic model of fractal dimension curves

open access: yesResults in Physics, 2023
The time series of fractal dimension values of urban form always take on sigmoid curves. The basic model of these curves is logistic function. From the logistic model of fractal dimension curves, we can derive the speed formula and acceleration formula ...
Yanguang Chen
doaj   +1 more source

Predictive modeling of low-temperature performance of SMA-13 cold-patching asphalt mixtures based on fractal theory [PDF]

open access: yesE3S Web of Conferences
In order to study the relationship between the low-temperature performance of cold-patching asphalt mixtures and the fractal of gradation, 13 groups of SMA-13 gradations were designed, and then the low-temperature performance test of cold-patching ...
Sun Zhao-Hui, Xie Jie-Ru, Guo Ke
doaj   +1 more source

Fractal nature in fat crystal networks [PDF]

open access: yes, 2004
The determination of the mechanical and rheological characteristics of several plastic fats requires a detailed understanding of the microstructure of the fat crystal network aggregates.
Eversheim, Walter   +9 more
core   +2 more sources

El análisis fractal: Una nueva herramienta para la investigación básica en ingeniería y otras disciplinas (Biología)

open access: yesCiencia e Ingeniería Neogranadina, 2000
Desde la aparición del ahora trabajo clásico de Benoit Mandelbrot en 1973, denominado "Los objetos fractales", la comunidad científica se interesó en las posibles aplicaciones que podría tener tan revolucionario concepto.
Darío Domínguez Cajeli   +2 more
doaj   +1 more source

Using fractal characteristics to analyze the development of whole-rolled wheel destruction [PDF]

open access: yesMATEC Web of Conferences, 2020
Purpose: Determination of mechanical characteristics of wheel steel by analyzing the development of destruction of solid-rolled wheels. Methods: Determination of the crack resistance of all-rolled wheels by testing samples from wheel steel for off-center
Kononov Dmitry   +3 more
doaj   +1 more source

Signal Pattern Recognition Based on Fractal Features and Machine Learning

open access: yesApplied Sciences, 2018
As a typical pattern recognition method, communication signal modulation involves many complicated factors. Fractal theory can be used for signal modulation feature extraction and recognition because of its good ability to express complex information. In
Chang-Ting Shi
doaj   +1 more source

Research on a Fractal Dimension Calculation Method for a Nano-Polymer Microspheres Dispersed System

open access: yesFrontiers in Chemistry, 2021
Polymer microspheres (PMs) are a kind of self-similar volume expansion particle, and their fractal dimension varies with hydration swelling. However, there is no unique fractal dimension calculation method for their characteristics.
Wenyue Zhao   +6 more
doaj   +1 more source

Quantitative Analysis of the Relationship Between Shear Strength and Fractal Dimension of Solidified Dredger Fill with Different Fly Ash Content Under Monotonic Shear

open access: yesPolish Maritime Research, 2018
The dredger fill of Shanghai Hengsha Island Dongtan is solidified by curing agents with different fly ash content, and the shear strength index of solidified dredger fill is measured by the direct shear test.
Shuai Yang, Wenbai Liu, Hongwei Liu
doaj   +1 more source

Toward reduction of artifacts in fused images [PDF]

open access: yes, 2011
Most fusion satellite image methodologies at pixel-level introduce false spatial details, i.e.artifacts, in the resulting fusedimages. In many cases, these artifacts appears because image fusion methods do not consider the differences in roughness or ...
Alonso   +44 more
core   +2 more sources

Fracture Surface Fractal Characteristics of Alkali-Slag Concrete under Freeze-Thaw Cycles

open access: yesAdvances in Materials Science and Engineering, 2017
Fractal theory is introduced in fracture surface research of alkali-slag concrete (ASC) under freeze-thaw cycles; crack distribution of ASC fracture surface and freeze-thaw damage zone were calculated.
Wantong Cai, Guoping Cen, Haifu Wang
doaj   +1 more source

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