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Table 6 Significant (p < .05) pore network modeling variables from OpenPNM graphs of pores

From: High-resolution micro-CT with 3D image analysis for porosity characterization of historic bricks

Measured Variables Brick A Brick B Brick C Brick D Brick E Brick F
Number of vertices (pores) 4,835 2,703 4,015 4,012 3,057 1,561
Number of edges (throats) 25,683 12,877 21,030 22,496 16,180 6,564
Ratio of number of throats/number of pores 5.46 4.80 5.22 5.38 5.32 4.16
Edge direct length mean µm 416 504 442 516 505 701
Edge direct length SD µm 287 403 319 365 365 477
Edge equivalent diameter mean µm 124 125 121 137 141 155
Vertex equivalent diameter mean µm 242 241 237 257 259 278
Vertex equivalent diameter SD µm 170 236 190 216 215 292
  1. Each entry is the means of 5 brick samples