Results 11 to 20 of about 3,871,049 (96)
Improving the signal subtle feature extraction performance based on dual improved fractal box dimension eigenvectors [PDF]
Royal 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
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Fractal Description of Rock Fracture Networks Based on the Space Syntax Metric
Fractal 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
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Seepage–Fractal Model of Embankment Soil and Its Application
Fractal 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
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Trans-scale relationship analysis between the pore structure and macro parameters of backfill and slurry [PDF]
Royal Society Open Science, 2019 The characteristics of the porous structure of backfill are directly related to the macro parameters of the flowability of the filling slurry and the mechanical features of the backfill, which are fundamental to the study of multiscale mechanics of ...
Jianhua Hu +3 more
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Stage division of urban growth based on logistic model of fractal dimension curves
Results 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
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Predictive modeling of low-temperature performance of SMA-13 cold-patching asphalt mixtures based on fractal theory [PDF]
E3S Web of ConferencesIn 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
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Signal Pattern Recognition Based on Fractal Features and Machine Learning
Applied 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
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Research on a Fractal Dimension Calculation Method for a Nano-Polymer Microspheres Dispersed System
Frontiers 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
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Applied Sciences, 2019 This study investigates the effects of basalt–polypropylene fibers on the compressive strength and splitting tensile strength of concrete and calculates the fractal dimension of the pore structure of concrete by using a fractal model based on the optical
D. Niu +5 more
semanticscholar +1 more source
Investigative Ophthalmology and Visual Science, 2016 PURPOSE To evaluate a fully automated local fractal dimension method to quantify vessel density and foveal avascular zone (FAZ) area in optical coherence tomography angiography (OCTA) images.
Rong Hu, Chun Ding
semanticscholar +2 more sources