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We consider the tetrahedral subdivision problem for a polygonal prismatic mesh with prescribed boundary constraints and without Steiner points. We prove the necessary and sufficient conditions for the existence of solutions, and also provide algorithms to compute such a constrained subdivision if there exists one. The result applies to arbitrary k-gonal prismatic meshes and even mixed prismatic meshes,...
Screening out sensitivity prediction indexes fit for the coal mine is very important technical work in coal and gas outburst prediction process. The feasibility that principal component analysis method been used in the coal and gas outburst prediction index screening is discussed. Through using gray correlation analysis method and principal component analysis method to analysis a batch of measured...
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