Polycycles and symmetric polyhedra appear as generalizations of graphs in the modeling of molecular structures, such as the Nobel prize winning fullerenes, occurring in chemistry and crystallography.
多角和对称的多面体显示为图的概括的,分子结构模型,如诺贝尔奖获奖富勒烯奖,化学和晶体发生。
Tested examples show that the set operations can work well under any situation provided the polyhedra to be operated are not mor...
测试实例表明,只要参加集合运算的多面体不是病态的,该方案均能得出合理的运算结果。
A classification of the Medial Axis points in polyhedra is introduced, and the correlative relation of these Medial Axis points is discussed.
对多面体中轴点进行了分类,并揭示了不同类中轴点之间的几何关系。
An algorithm for computing the minimum distance between two convex polyhedra is presented.
提出的算法,用于计算两个凸多面体之间的最小距离。
This reveals preliminarily that many structural polyhedra and coordinated polyhedral molecules possess the character of intersecting plane or folding intersection between the …
并初步揭示了许多结构多面体和配位多面体分子具有交错面或由两个多面体交错叠合的性质。
The relations between the morphology and the orientations of the anion coordination polyhedra in the crystals are studied.
研究了晶体中负离子配位多面体的结晶方位与晶体结晶形貌之间的关系。
The result indicated that a great lot of virus polyhedra could be prepared by this method.
结果表明,可以用此方法大量制备病毒多角体。
The formulation of group overlap integrals in coordination polyhedra is discussed. The basic expressions and some sum relations of group overlap integrals are given.
本文讨论了配位多面体的群重叠积分计算问题,给出了这种群重叠积分的一般形式以及它们满足的一些关系。
A solid tessellation; a filling of three-dimensional space with polyhedra such that a face of one polyhedron is the face of exactly one other polyhedron.
一种立体嵌图;用多面体对三维空间的装填,使得一个多面体的面恰是另一个多面体的面。
The algorithm builds BoxTreees of arbitrary non convex polyhedra using a hierarchical adaptive space subdivision scheme, and speeds up collision detection by traversing the BoxTrees in parallel.
该算法面向动态复杂场景采用层次的自适应空间剖分方法建构物体的平衡包围盒树,然后通过并行遍历包围盒树来加速碰撞检测。
The relationship between the crystallographic orientation of anionic coordination polyhedra and the surface structures was discussed in this paper.
本文讨论了晶体表面结构和负离子配位多面体结晶方位的关系。
It is suggested that the surface structures show the locus formed by the combination of growth units of anionic coordination polyhedra on different surfaces during crystal growth.
指出了晶体表面结构,显示了负离子配位多面体在晶体生长过程中的结晶轨迹。
Tested examples show that the set operations can work well under any situation provided the polyhedra to be operated are not morbid.
测试实例表明,只要参加集合运算的多面体不是病态的,该方案均能得出合理的运算结果。
Morphological changes of the polyhedra were observed in some diseased pupae and their hereditary stability was testified in the next generation.
部分病蛹体内发生异常形态多角体,继代试验证实具有遗传稳定性。