Results 21 to 30 of about 3,926,530 (307)

Signal Pattern Recognition Based on Fractal Features and Machine Learning

open access: yesApplied 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
doaj   +1 more source

Toward reduction of artifacts in fused images [PDF]

open access: yes, 2011
Most fusion satellite image methodologies at pixel-level introduce false spatial details, i.e.artifacts, in the resulting fusedimages. In many cases, these artifacts appears because image fusion methods do not consider the differences in roughness or ...
Alonso   +44 more
core   +2 more sources

Experimental Study on Mechanical Properties and Fractal Dimension of Pore Structure of Basalt–Polypropylene Fiber-Reinforced Concrete

open access: yesApplied 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

Fractal Analysis on Surface Topography of Thin Films: A Review

open access: yesFractal and Fractional, 2022
The topographies of various surfaces have been studied in many fields due to the significant influence that surfaces have on the practical performance of a given sample.
Wenmeng Zhou   +5 more
semanticscholar   +1 more source

Quantitative Analysis of the Relationship Between Shear Strength and Fractal Dimension of Solidified Dredger Fill with Different Fly Ash Content Under Monotonic Shear

open access: yesPolish Maritime Research, 2018
The dredger fill of Shanghai Hengsha Island Dongtan is solidified by curing agents with different fly ash content, and the shear strength index of solidified dredger fill is measured by the direct shear test.
Shuai Yang, Wenbai Liu, Hongwei Liu
doaj   +1 more source

Research on a Fractal Dimension Calculation Method for a Nano-Polymer Microspheres Dispersed System

open access: yesFrontiers 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
doaj   +1 more source

Fractal Analysis of Particle Distribution and Scale Effect in a Soil–Rock Mixture

open access: yesFractal and Fractional, 2022
A soil–rock mixture (SRM) is a type of heterogeneous geomaterial, and the particle distribution of SRM can be described by fractal theory. At present, it is difficult to quantify the fractal dimension of a particle size distribution and understand the ...
Xiaodong Fu   +5 more
semanticscholar   +1 more source

Fracture Surface Fractal Characteristics of Alkali-Slag Concrete under Freeze-Thaw Cycles

open access: yesAdvances in Materials Science and Engineering, 2017
Fractal theory is introduced in fracture surface research of alkali-slag concrete (ASC) under freeze-thaw cycles; crack distribution of ASC fracture surface and freeze-thaw damage zone were calculated.
Wantong Cai, Guoping Cen, Haifu Wang
doaj   +1 more source

Evaluation of long term storage of apples by means of fractal analysis

open access: yesResearch in Agricultural Engineering, 2003
Realization of long-term apple storage requires the most detailed information about the flesh structure and texture, whose quality is contributing by responsible way to the whole quality of the evaluated fruits.
Ľ. Kubík   +5 more
doaj   +1 more source

Scale, digitizing effort and fractality of the shoreline [PDF]

open access: yes, 2018
En este trabajo se analizan las interrelaciones entre escala, esfuerzo digitalizador y dimensión fractal en los procesos de digitalización de diferentes tipos de línea de costa en siete sectores costeros diferentes.
Fernández Díaz, Miguel   +1 more
core   +1 more source

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