The Research on Mean Spacing of Rock Fracture

2014 ◽  
Vol 580-583 ◽  
pp. 219-223
Author(s):  
Lu Jiang ◽  
Yang Song Zhang
Keyword(s):  
Rock Mass ◽  
Linear Density ◽  
Rock Fracture ◽  
Three Dimensional ◽  
Gansu Province ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Gps Rtk ◽  
Mass Classification ◽  
The Mean

The mean spacing of rock fracture is a very important parameter base to evaluate rock mass,a number of rock studies base on it. Object of this paper is Beishan preselected area in Gansu Province, China. A uthor use GPS-RTK to measure the fracture’s endpoints and inflection, then process the resulting coordinate, building a three-dimensional model of rock fracture by using three-dimensional software and meshing the three-dimensional model, Through the analysis of fractures in each grid to calculate the linear density of rock fracture, after the orientation and inclination correction on linear density, it can be converted to an mean spacing of rock fractures. The mean spacing of rock fracture can be directly used for rock mass classification in GSI rock systems, and has a great significance in rock engineering studies.

‘Mean Contrast’ Texture Feature Model of Nature Environmental Protection Fabric

2010 ◽  
Vol 113-116 ◽  
pp. 943-946
Author(s):  
Zhe Liu
Keyword(s):  
Three Dimensional ◽  
Texture Feature ◽  
Feature Model ◽  
Quality Inspection ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Numerical Convergence ◽  
Texture Characteristics ◽  
The Mean ◽  
Contrast Feature

Aiming at lack of mature texture feature model of natural green fabric image, this paper presents a new “Mean Contrast” texture feature model, which can express better on the type of collecting and narrow-long and some irregular defects. First, three-dimensional model of texture characteristics is established, various natural green fabrics are tested in experiments using the contrast feature, and then “Mean Contrast” feature is proposed, so that characteristic value of fabric texture can be converged. Finally, experimental results show that the “mean contrast” feature is so simple and effective that better show a variety of fabric texture variation, and has the numerical convergence. So it provides a contrasting texture feature model for continue related to fabric quality inspection.

Three-Dimensional Model for Virtual Surgical Simulation, during Complex Skull Base Surgery and Aneurysm Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Simulation ◽  
Skull Base Surgery ◽  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Dimensional Model ◽  
Three Dimensional Model
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