Influences of subcritical and supercritical CO2 treatment on the pore structure characteristics of marine and terrestrial shales

Drawing Dies meter A / D acquisition module will be collected from the mold hole contour data to draw a curve in Matlab. According to the mold pore structure characteristics of the curve, the initial cut-off point of each part of contour is determined and iteratived optimization to find the best cut-off point, use the least squares method for fitting piecewise linear and fitting optimization to find the function of the various parts of the curve function, finally calculate the pass parameters of drawing mode. Parameters obtained compare with the standard mold, both of errors are relatively small that prove the correctness of the algorithm. Also a complete algorithm flow of pass parameters is designed, it can fast and accurately measure the wire drawing die hole parameters.

Download Full-text

Effect of walnut shell ash on pore structure characteristics during Zhundong coal sintering

Fuel Processing Technology ◽

10.1016/j.fuproc.2021.106923 ◽

2021 ◽

Vol 221 ◽

pp. 106923

Author(s):

Hao Zhou ◽

Jiawei Luo ◽

Zhaowen Wang ◽

Mengting Ji ◽

Mingrui Zhang

Keyword(s):

Pore Structure ◽

Walnut Shell ◽

Structure Characteristics ◽

Zhundong Coal

Download Full-text

Improvement of water wettability of gray cotton fabric using electron beam irradiation and supercritical CO2 treatment

The Journal of Supercritical Fluids ◽

10.1016/j.supflu.2021.105506 ◽

2021 ◽

pp. 105506

Author(s):

Heba Ghanayem ◽

Satoko Okubayashi

Keyword(s):

Electron Beam ◽

Cotton Fabric ◽

Supercritical Co2 ◽

Electron Beam Irradiation ◽

Beam Irradiation ◽

Water Wettability ◽

Co2 Treatment

Download Full-text

Investigate on Pore Structure Characteristics of Reactive Powder Concrete after High Temperatures

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.174-177.1010 ◽

2012 ◽

Vol 174-177 ◽

pp. 1010-1014 ◽

Cited By ~ 1

Author(s):

Hong Bin Liu ◽

Yang Ju ◽

Kai Pei Tian ◽

Jin Hui Liu ◽

Li Wang ◽

...

Keyword(s):

Pore Structure ◽

Pore Size ◽

Pore Volume ◽

Average Pore Size ◽

Reactive Powder Concrete ◽

Characteristic Parameters ◽

Average Pore ◽

Structure Characteristics ◽

Temperature Levels ◽

Reactive Powder

The pore structure characteristics of reactive powder concrete (RPC) were investigated by means of the mercury injection method at seven temperature levels, namely, 20°C, 100°C, 150°C, 200°C, 250°C, 300°C, 350°C, respectively. The characteristic parameters such as porosity, pore volume, average pore size and threshold aperture varied with temperatures were analyzed. The results indicate that the porosity, pore volume, threshold aperture and other characteristic parameters of RPC increased with the temperature increasing.

Download Full-text