convex polyhedron meaning in English
凸多面体
Examples
- In section one , based on theory of n dimensional euclid space , a new method labeled as " pointlineplane " recycling optimization algorithm is proposed to solve the linear programming problem . this algorithm is proposed on the basis of the thought as follovvs : as for three dimensional euclid space , the feasible region of any linear programming problem is a extended convex polyhedron , of which surface is consisted of some planes , and its objective function can be regarded as a parallel plane pencil with objective function value acting as parameter
第一部分内容是在n维欧氏空间理论的基础上提出了一种求解线性规划问题的新算法? “点线面”循环寻优法，本算法是基于如下思想提出来的：我们知道，在三维欧氏空间中，线性规划问题的可行域是一个由若干个平面围成的广义多面体，目标函数可以看作是以目标函数值为参变量的一个平行平面束。 - A good model of the full - grade aggregate concrete with high aggregate content is precondition to successfully execute concrete meso - mechanical simulation , so that the main work in the dissertation is focused on the following study concerning the random aggregate model of dam fully - graded concrete : ( 1 ) based on the topology of spherical aggregates , an algorithm of the random convex polyhedron aggregate model was presented considering the actual aggregate content , grading , and aggregate shape , and corresponding fortran program was developed to generate random convex polyhedron aggregate
针对全级配大坝混凝土的实际骨料含量和骨料形态,本文做了以下主要工作: ( 1 )在一种高效率生成的随机球骨料模型的基础上,形成随机凸多面体骨料模型,同时研究了细观单元属性判别方法,编制了对含有凸多面体骨料的细观区域进行结构性有限元网格剖分程序。本文给出的三维随机骨料模型算法不但考虑了混凝土的骨料的实际级配和含量,而且计及了骨料的实际形态。