scholarly journals Optimization of Texture Measurements. IV. The Influence of the Grain-Size Distribution on the Quality of Texture Measurements

1999 ◽  
Vol 31 (3) ◽  
pp. 177-186 ◽  
Author(s):  
V. Luzin

It is the focus of attention that texture experiments deal with real samples which consist of a finite number of crystallites of different size. Because of this the main sample-induced statistics (grain statistics and grain-size statistics) have essential influence on the quality of experimental data. This article quantitatively analyzes the dependence of the integral error on the parameters of the mentioned statistics and the approximation goodness.

2011 ◽  
Vol 391-392 ◽  
pp. 269-273
Author(s):  
Qing Jun Zhang ◽  
Li Mei Jiang ◽  
Wen Ling Mo ◽  
Yu Zhu Zhang

Grain size distribution in the sinter is an important index sign to measure the quality of sinter. In this paper, according to the fractal theory and the contrast experiment of sinter, the fractal characteristic of grain size distribution of sinter with low SiO2is discussed. The relation between the fractal dimension and content of SiO2is proposed. Combine with the SEM graphs of the sinter with low SiO2, the relation between the fractal dimension and microstructure of sinter with low SiO2is also analyzed. Pass to the quantificational description of the grain size distribution of sinter with low SiO2, to predict and optimize the grain size constitution of sinter, and offer a new idea, a new way for the further thorough research of sinter ore.


Refractories ◽  
1976 ◽  
Vol 17 (11-12) ◽  
pp. 736-740
Author(s):  
K. V. Simonov ◽  
P. V. Cherepov ◽  
A. G. Luzin ◽  
Yu. P. Vorob'ev ◽  
Yu. V. Bel'tyukov ◽  
...  

Author(s):  
Imdad Ali Kandhar ◽  
Ghous Bux Khaskheli ◽  
Abdul Razaque Sahito ◽  
Rasool Bux Mahar

The focus of the present study was to examine the effect of canal bank filtration on the quality of water and the geological settings along the banks of canals at the shallow depth aquifers. The four Model wells were drilled at different locations of the Line channel, Pinyari and phulali canals in the study area. The samples of soil were collected throughout drilling of the model wells for the analysis of grain size distribution .In addition to this, canal water and model well water samples were collected and analyzed for the water quality characteristics during winter and summer seasons. The analysis of soil and water samples reveals that the ground water is influenced by the grain size distribution, hydraulic conductivity and the location of the model Wells. The model well that has higher percentage of 0.075 mm of grain size distribution(hydraulic conductivity between 10-25 ft/day) was more suitable for the filtration of the canal water through its banks, followed by 0.15 mm of grain size distribution (hydraulic conductivity > 25ft/ day). Moreover, the present study also shows that the canal water filtration is suitable in terms of total alkalinity, nitrate-nitrogen, total iron and pH to get the potable water at the location near upstream of the canal, especially in the summer season.


2020 ◽  
Vol 174 ◽  
pp. 01036
Author(s):  
Sergey Shabaev ◽  
Sergey Ivanov

The constant increase in traffic load at mining enterprises forces to look for ways to improve the quality of feeder roads of coal open pits. There is a constant search for tools and methods for improving road pave- ment to increase the service life of truck haul roads. It is known that haul roads are topped mostly with lightweight flexible pavements due to the pe- culiarities of moving vehicles. One of the most applicable materials for pav- ing truck haul roads is crushed stone sand mixtures. However, the lack of scientific research aimed at finding ways to improve the riding quality of open pit haul roads and increase the efficiency of open-pit truck haulage op- eration due to the roads as component of a system did not allow the use of dense-graded mixtures as a pavement for open pit haul roads. In this work, studies were carried out to optimize the grain-size distribution of crushed stone sand mixtures taking into account the physical and mechanical, strength, and deformation properties of the material.


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