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Fractal Sturm–Liouville Theory

open access: yesFractal and Fractional
This paper provides a short summary of fractal calculus and its application to generalized Sturm–Liouville theory. It presents both the fractal homogeneous and non-homogeneous Sturm–Liouville problems and explores the theory’s applications in optics.
Alireza Khalili Golmankhaneh   +3 more
doaj   +5 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   +3 more sources

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   +3 more sources

Grain boundary design based on fractal theory to improve intergranular corrosion resistance of TWIP steels

open access: yesMaterials & Design, 2020
The grain size in TWIP steel had a double fractal distribution, with a uniform diameter threshold of approximately 36 μm. Based on this threshold value, the grains were divided into fine and coarse grain sets. A good linear relationship was found between
Hao Fu   +4 more
doaj   +3 more sources

Research on Gridding of Urban Spatial Form Based on Fractal Theory

open access: yesISPRS International Journal of Geo-Information, 2022
Urban spatial form is a significant reference to getting to know cities and running the cities. The fractal theory is an effective means to quantify urban spatial form.
Qindong Fan   +3 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

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

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