Quantitative evaluation of fillers dispersion state in CaCO 3 /polypropylene composites through visualization and fractal analysis

2020 ◽  
Vol 41 (4) ◽  
pp. 1605-1613 ◽  
Author(s):  
Xiangmeng Lv ◽  
Ming Kang ◽  
Lu Yuan ◽  
Simin Shen ◽  
Rong Sun ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Fractal Analysis ◽  
Polypropylene Composites ◽  
Dispersion State

Nondestructive Quantitative Evaluation of Porosity Volume Distribution in Aluminum Alloy Die Castings by Fractal Analysis

2009 ◽  
Vol 40 (12) ◽  
pp. 2789-2793 ◽  
Author(s):  
Yoshihiko Hangai ◽  
Shota Maruhashi ◽  
Soichiro Kitahara ◽  
Osamu Kuwazuru ◽  
Nobuhiro Yoshikawa
Keyword(s):  
Aluminum Alloy ◽  
Quantitative Evaluation ◽  
Fractal Analysis ◽  
Volume Distribution ◽  
Die Castings

scholarly journals Quantitative evaluation of midpalatal suture maturation via fractal analysis

2016 ◽  
Vol 46 (5) ◽  
pp. 323 ◽  
Author(s):  
Kyoung Ho Kwak ◽  
Seong Sik Kim ◽  
Yong-Il Kim ◽  
Yong-Deok Kim
Keyword(s):  
Quantitative Evaluation ◽  
Fractal Analysis ◽  
Midpalatal Suture

scholarly journals Physical Meanings of Fractal Behaviors of Water in Aqueous and Biological Systems with Open-Ended Coaxial Electrodes

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2606
Author(s):  
Shin Yagihara ◽  
Rio Kita ◽  
Naoki Shinyashiki ◽  
Hironobu Saito ◽  
Yuko Maruyama ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Relaxation Time ◽  
Relaxation Process ◽  
Fractal Analysis ◽  
Biological Systems ◽  
Polymer Networks ◽  
Dispersion Systems ◽  
Dispersion State ◽  
Frequency Relaxation ◽  
Average Relaxation Time

The dynamics of a hydrogen bonding network (HBN) relating to macroscopic properties of hydrogen bonding liquids were observed as a significant relaxation process by dielectric spectroscopy measurements. In the cases of water and water rich mixtures including biological systems, a GHz frequency relaxation process appearing at around 20 GHz with the relaxation time of 8.2 ps is generally observed at 25 °C. The GHz frequency process can be explained as a rate process of exchanges in hydrogen bond (HB) and the rate becomes higher with increasing HB density. In the present work, this study analyzed the GHz frequency process observed by suitable open-ended coaxial electrodes, and physical meanings of the fractal nature of water structures were clarified in various aqueous systems. Dynamic behaviors of HBN were characterized by a combination of the average relaxation time and the distribution of the relaxation time. This fractal analysis offered an available approach to both solution and dispersion systems with characterization of the aggregation or dispersion state of water molecules. In the case of polymer-water mixtures, the HBN and polymer networks penetrate each other, however, the HBN were segmented and isolated more by dispersed and aggregated particles in the case of dispersion systems. These HBN fragments were characterized by smaller values of the fractal dimension obtained from the fractal analysis. Some examples of actual usages suggest that the fractal analysis is now one of the most effective tools to understand the molecular mechanism of HBN in aqueous complex materials including biological systems.

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