Results 1 to 10 of about 134,471 (280)

Minkowski Dimension and Explicit Tube Formulas for p-Adic Fractal Strings

open access: yesFractal and Fractional, 2018
The theory of complex dimensions describes the oscillations in the geometry (spectra and dynamics) of fractal strings. Such geometric oscillations can be seen most clearly in the explicit volume formula for the tubular neighborhoods of a p-adic fractal ...
Michel L. Lapidus   +2 more
doaj   +3 more sources

Application basis and research progress of fractal theory in mineral processing

open access: yesMeitan xuebao, 2023
With the exploitation of mineral resources, some problems, such as the difficulty of mineral resources development and the difficulty of mine solid waste treatment, have seriously restricted the green, economic, efficient and sustainable development of ...
Xinran LIU   +5 more
doaj   +1 more source

Mathematical Model for Effective Gas Diffusion Coefficient in Multi-scale Fractal Porous Media [PDF]

open access: yesE3S Web of Conferences, 2021
Based on the capillary hypothesis and fractal theory, a mathematical model for calculating the effective gas diffusion coefficient in porous media is established. By using fractal geometry theory, pore area fractal dimension, tortuosity fractal dimension
Zhehua Du
doaj   +1 more source

Periodic waves travelling along an unsmooth boundary via the fractal variational theory

open access: yesResults in Physics, 2021
The solitary waves of the fractal Korteweg-de Vries (KdV) equation travelling along an unsmooth boundary is studied by Ji-Huan He, et al (Results in Physics, 2021, 104104 [1]).
Bo-Rong Zou, Kang-Jia Wang
doaj   +1 more source

Fractal Model of Contact Thermal Stiffness

open access: yesMachines, 2022
The continuity, self-similarity, and self-affinity of a microscopic contact surface can be described by the Weierstrass–Mandelbrot (W–M) function in fractal theory. To address the problems that the existing normal contact load fractal model does not take
Yunshuai Chen   +4 more
doaj   +1 more source

Numerical Model of Filtration Efficiency Based on Fractal Characteristics of Particulate Matter and Particle Filter

open access: yesAtmosphere, 2023
Fractal theory was used to characterize particles and particle trapping parameters to accurately predict the particle filtration process inside a gasoline engine particle filter (GPF). The particles were fractal aggregates, and the fractal dimension (Df)
Yiqing Liu, Hao Wang, Haisheng Yu
doaj   +1 more source

Urban spatial form analysis based on the architectural layout -- Taking Zhengzhou City as an example

open access: yesPLoS ONE, 2022
The analysis of urban spatial form is the basic research of urban development. Traditional fractal research often focuses on the urban spatial layout, which cannot visually express the specific form, change characteristics and development trend of urban ...
Qindong Fan   +3 more
doaj   +2 more sources

Investigation and Application of Fractal Theory in Cement-Based Materials: A Review

open access: yesFractal and Fractional, 2021
Cement-based materials, including cement and concrete, are the most widely used construction materials in the world. In recent years, the investigation and application of fractal theory in cement-based materials have attracted a large amount of attention
Lei Wang   +6 more
doaj   +1 more source

Historical aspects of fractal theory appearance

open access: yesФизика волновых процессов и радиотехнические системы, 2021
In paper short definition of a fractal is made, its basic properties are resulted, historical preconditions of origination fractal theories in a context of terms «assemblage» and «function» which development is observed from the moment of their ...
Viktor A. Kuznetsov
doaj   +1 more source

Seepage–Fractal Model of Embankment Soil and Its Application

open access: yesFractal and Fractional, 2022
Over time and across space, the hydraulic conductivity, fractal dimension, and porosity of embankment soil have strong randomness, which makes analyzing seepage fields difficult, affecting embankment risk analysis and early disaster warning.
Xiaoming Zhao   +4 more
doaj   +1 more source

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