Results 1 to 10 of about 3,926,530 (307)

Applying Surface Fractal Analysis (SFA) in analysis of surface anomalies and its relation with changes in morphotectonic zones in the margin of the High Zagros Belt (HZB) [PDF]

open access: yesمخاطرات محیط طبیعی, 2020
Fractal geometry is a method for describing a self-similar or a self-affine property in complex landforms and explanation of surface complexities and roughness.
Mahnaz Shiran   +4 more
doaj   +1 more source

Analysis of the relationship between dominant lithological features in the sub-basins of Zagros tectonic unit and their fractal dimension [PDF]

open access: yesجغرافیا و توسعه, 2022
Fractal geometry is a suitable instrument for studying and understanding the complex behavior of a river. The most important feature of the fractal is its dimension.
Gholam hassan Jafari, Kazhal Qafoori
doaj   +1 more source

Fractal Characteristics of Deep Shales in Southern China by Small-Angle Neutron Scattering and Low-Pressure Nitrogen Adsorption

open access: yesFractal and Fractional, 2022
The occurrence and flow of shale gas are substantially impacted by nanopore structures. The fractal dimension provides a new way to explore the pore structures of shale reservoirs. In this study, eight deep shale samples from Longmaxi Formation to Wufeng
Hongming Zhan   +6 more
doaj   +1 more source

Study on fractal anisotropy characteristics of fracture surface topography of coal and rock under different loading and unloading conditions

open access: yesMeikuang Anquan, 2021
In order to study the fractal anisotropy characteristics and size effect of coal rock fracture surface under typical failure modes, taking the fracture plane of coal and rock under complex failure load as the research object, laser scanning, CATIA3D ...
SONG Jinwang   +8 more
doaj   +1 more source

Rugosidad y textura de superficies: experimentos y simulaciones

open access: yesCiencia e Ingeniería Neogranadina, 2006
En este trabajo se aplican algunos elementos de la geometría fractal al estudio y caracterización de la rugosidad superficial. Los materiales bajo estudio consisten en agregados naturales, de amplia aplicación en la industria de la construcción.
Watson L. Vargas   +2 more
doaj   +3 more sources

Improving the signal subtle feature extraction performance based on dual improved fractal box dimension eigenvectors [PDF]

open access: yesRoyal Society Open Science, 2018
Because of the limitations of the traditional fractal box-counting dimension algorithm in subtle feature extraction of radiation source signals, a dual improved generalized fractal box-counting dimension eigenvector algorithm is proposed.
Xiang Chen   +3 more
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

Hurst Coefficient in long time series of population size: Model for two plant populations with different reproductive strategies [PDF]

open access: yes, 2010
Can the fractal dimension of fluctuations in population size be used to estimate extinction risk? The problem with estimating this fractal dimension is that the lengths of the time series are usually too short for conclusive results.
ADELA SALVADOR   +10 more
core   +2 more sources

Fractal Description of Rock Fracture Networks Based on the Space Syntax Metric

open access: yesFractal and Fractional, 2022
Fractal characteristics and the fractal dimension are widely used in the description and characterization of rock fracture networks. They are important tools for coal mining, oil and gas transportation, and other engineering problems. However, due to the
Lili Sui   +6 more
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

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