Results 1 to 10 of about 22,163,446 (341)

Fractal Analysis of Human Gait Variability via Stride Interval Time Series

open access: yesFrontiers in Physiology, 2020
Fractal analysis of stride interval time series is a useful tool in human gait research which could be used as a marker for gait adaptability, gait disorder, and fall risk among patients with movement disorders.
Angkoon Phinyomark   +4 more
doaj   +2 more sources

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
doaj   +2 more sources

FRACTAL RADIOPHYSICS. Part 2. FRACTAL AND MULTIFRACTAL ANALYSIS METHODS OF SIGNALS AND PROCESSES [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. The subject of this paper is to review the principal methods of fractal and multifractal analysis of signals and processes, in combination with a detailed consideration of the algorithms that can provide for a successful practical ...
O. V. Lazorenko, L. F. Chernogor
doaj   +1 more source

Hydration and Fractal Analysis on Low-Heat Portland Cement Pastes Using Thermodynamics-Based Methods

open access: yesFractal and Fractional, 2023
Low-heat Portland (LHP) cement is a kind of high-belite cement, which has the characteristic of low hydration heat. Currently, it is extensively used in the temperature control of mass concrete. Based on the thermodynamic database of OPC-based materials,
Yifan Zhou   +9 more
semanticscholar   +1 more source

Fractal Analysis on Pore Structure and Modeling of Hydration of Magnesium Phosphate Cement Paste

open access: yesFractal and Fractional, 2022
Magnesium phosphate cement (MPC) paste is hardened by the acid–base reaction between magnesium oxide and phosphate. This work collects and evaluates the thermodynamic data at 25 ℃ and a pressure of 0.1 MPa and establishes the hydration reaction model of ...
Yuxiang Peng   +5 more
semanticscholar   +1 more source

FRACTAL ANALYSIS FOR OIL SPILLS CLUSTERING IN AHOADA COMMUNITIES OF THE NIGER DELTA REGION OF NIGERIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This study uses fractal analysis to understand how oil spills are clustered at different scales in Ahoada communities of the Niger Delta region of Nigeria.
H. A. Umar   +6 more
doaj   +1 more source

Influence of MgO on the Hydration and Shrinkage Behavior of Low Heat Portland Cement-Based Materials via Pore Structural and Fractal Analysis

open access: yesFractal and Fractional, 2022
Currently, low heat Portland (LHP) cement is widely used in mass concrete structures. The magnesia expansion agent (MgO) can be adopted to reduce the shrinkage of conventional Portland cement-based materials, but very few studies can be found that ...
Lei Wang   +6 more
semanticscholar   +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 ...
X. Fu   +5 more
semanticscholar   +1 more source

Fractal Analysis on Pore Structure and Hydration of Magnesium Oxysulfate Cements by First Principle, Thermodynamic and Microstructure-Based Methods

open access: yesFractal and Fractional, 2021
Magnesium oxysulfate (MOS) cement is a typical eco-friendly cementitious material, which presents excellent performances. In this work, a novel multiscale modeling strategy is proposed to simulate the hydration and pore structure of MOS cement system ...
Jiasheng Huang   +10 more
semanticscholar   +1 more source

Fractal analysis as a useful predictor for determining osseointegration of dental implant? A retrospective study

open access: yesInternational Journal of Implant Dentistry, 2021
The present study aimed at evaluating the effectiveness of fractal analysis on determining the osseointegration of dental implants. In a single center, retrospective clinical trial, patients with dental implants in the mandibular premolar/molar region ...
E. Soylu   +5 more
semanticscholar   +1 more source

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