Results 31 to 40 of about 323,816 (153)

Calculation of multi-fractal dimension of coal measure sedimentary rock and analysis of influencing factors

open access: yes矿业科学学报, 2021
In order to characterize the pore structure and fractal characteristics of coal-measure sedimentary rocks, three types of typical sedimentary rocks of the Middle Jurassic shale, mudstone and sandstone were selected as the research objects.
Zhang Na   +3 more
doaj   +1 more source

Cálculo de la dimensión fractal en señales de origen caótico

open access: yes, 1998
Actualmente la Facultad de Ingeniería de la Universidad Militar Nueva Granada está implementando una línea de investigación en objetos fractales, para calcular su dimensión en diversas aplicaciones, útiles para las diversas ramas de la Ingeniería. Dentro
Palacio Duque, Luz E.   +4 more
core   +2 more sources

Persistent fluctuations in stride intervals under fractal auditory stimulation [PDF]

open access: yes, 2014
Copyright @ 2014 Marmelat et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and ...
Beek, P.J.   +25 more
core   +3 more sources

From rock microstructure to macromechanical properties based on fractal dimensions

open access: yesAdvances in Mechanical Engineering, 2019
Basic rock mechanical parameters, that is, the uniaxial compressive strength σ c and elastic modulus E , have close relationships with the fractal dimension and inhomogeneity.
Dongmei Huang   +4 more
doaj   +1 more source

Distribution and Fractal Characteristics of Outdoor Particles in High-Rise Buildings Based on Fractal Theory

open access: yesFractal and Fractional, 2023
It is of great significance to understand the particle distribution characteristics at different heights to effectively control particle pollution. Based on fractal theory, the fractal dimension of outdoor particles in a high-rise building in Xi’an and ...
Fuquan Liu   +3 more
doaj   +1 more source

Clasificación de células cancerígenas mediante dimensión fractal

open access: yes, 2022
“Para explicar los fenómenos geométricos de la naturaleza, la geometría euclidiana no puede dar una explicación acertada a todo, para ello la geometría fractal se encarga en gran medida de esto: da un entendimiento de la rigurosidad de la naturaleza, que
Xolo Fiscal, Jonathan
core  

A renormalisation approach to excitable reaction-diffusion waves in fractal media [PDF]

open access: yes, 2003
Of fundamental importance to wave propagation in a wide range of physical phenomena is the structural geometry of the supporting medium. Recently, there have been several investigations on wave propagation in fractal media.
Abdulbake, Janan   +2 more
core   +4 more sources

Numerical Simulation of Rockfill Materials Based on Fractal Theory

open access: yesApplied Sciences, 2021
With the use of the particle flow code in two dimensions, a fractal model is established with the number of particles of different particle fractions used as the statistics to study the fractal characteristics of particle size distribution.
Hongxing Han   +4 more
doaj   +1 more source

Fractal Analysis on Asphalt Mixture Using a Two-Dimensional Imaging Technique

open access: yesAdvances in Materials Science and Engineering, 2016
Fractal is a mathematical set that has a fractal dimension which usually exceeds its topological dimension and may be nonintegral. Since the asphalt pavement texture has limitations of randomness and self-similarity, fractal theory has been explored to ...
Yue Hou   +3 more
doaj   +1 more source

The Solutions to the Uncertainty Problem of Urban Fractal Dimension Calculation

open access: yesEntropy, 2019
Fractal geometry provides a powerful tool for scale-free spatial analysis of cities, but the fractal dimension calculation results always depend on methods and scopes of the study area. This phenomenon has been puzzling many researchers.
Yanguang Chen
doaj   +1 more source

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