We derive exact formulae for three basic annulus crossing events for the critical planar Bernoulli percolation in the continuum limit. The first is for the probability that there is an open path connecting the two boundaries of an annulus of inner radius r r and outer radius R R . The secon...
The material strength defined by the unit body should be definite and independent of the sizes and shapes of specimens, like the specific gravity of a substance. It could be seen from experimental observations of concrete specimens that specimens were severely broken at their ultimate load, and ...
5. Polyurethane foam begins to cure after ten minutes, wait for one hour before doing the next step; 6. Use a knife to smooth our cured polyurethane foam and treat surface with cement, paint or silicone; 7. If partly used, place moistened matchstick into valve. Are...