The revetment is made up of many single permeable tetrahedrons, and has much gap, so the group of permeable tetrahedrons can be treat as the porous media with large porosity. 四面体透水框架群是由很多单个四面体框架抛投而成,具有很大的空隙,因而,可以将框架群看成由很多框架杆件和大的孔隙组成的大孔隙率多孔介质。
Have no understanding of cubes spheres, tetrahedrons. 没有立方体、球体、四面体这些概念。
An Algorithm of Generating Unstructured Tetrahedrons from 3D Discrete Points 一种三维离散点数据生成非结构四面体算法
This paper proposes an algorithm to divide an arbitrary polyhedron to tetrahedrons and gives its theoretical basis, data type and implementation. 本文提出了一种将任意多面体剖分为四面体的算法,给出了算法理论基础的证明、算法具体实现步骤及所用数据结构。
The three-dimensional AFT method is improved to generate tetrahedron mesh of matrix and grains. By utilizing the characteristics of AFT, all the grains are meshed to tetrahedrons at one time. 采用改进的三维AFT方法生成基体的四面体网格,并利用AFT特性一次生成所有颗粒夹杂的四面体网格;
Using the wrong result of gasoline volume sensors, current attitude error and surface triangle mesh, logical prisms and tetrahedrons were generated. 利用油量传感器错误示数和当前飞行姿态角,利用油箱表面三角网格,将油箱内含油体积进行三维三棱柱剖分和三维四面体剖分。
Apply Tetrahedrons to GTP Model and Resulted Spatial Model Improvement GTP模型中四面体的引入及其空间模型扩展
A three-dimensional sound ray tracing method by deploying regular tetrahedrons 三维声线追踪的正三棱锥前向伸展算法
Finally, all tetrahedron meshes of every geological body are joined together. In this algorithm the boundary conference is ensured, overlapped tetrahedrons are avoided, and most generated tetrahedrons are Delaunay. 本算法生成的四面体网格可保证多个地质体边界一致,避免四面体单元重叠,且大部分四面体网格符合Delaunay法则。
Every simple polyhedron is further divided into tetrahedrons. 每个简单多面体进一步剖分为四面体。
The correct volume was calculated with total volume of prisms and tetrahedrons. 计算四面体体积之和求得油箱正确的含油量。
The cell style after mesh is the mix of tetrahedrons and hexahedrons. 对带有表面周向缺陷的圆柱体网格划分后,产生的单元类型为四面体与六面体的混合。
A Soft-Tissue Cutting Algorithm Based on Tetrahedrons 一种基于四面体的软组织切割算法
Secondly, we use another cutting algorithm to simulate cutting which subdivides the tetrahedrons nearby the incision. 体元剖分法将切口附近的体元剖分为多个小四面体,达到精确模拟切口的效果。
Are discussed. While using the coordinate parameters in calculating the structure parameters of Si-O tetrahedrons and Si five-membered rings etc. 利用其原子座标参数计算了结构中Si&O四面体及硅五元环等结构参数。
The metal ions Ca2+, K+, Na+ etc. are at the gaps between the tetrahedrons and octahedrons for maintaining the equilibrium of the valence and for the stable structure. 金属阳离子Ca~(2+)、K~+、Na~+等位于多面体堆积产生的空隙中,以平衡电价,稳定结构。
It was deduced that methyls were possibly inserted into hexagonal rings of silica tetrahedrons and hydroxyls into octahedrons. 其甲基可能嵌入了硅氧四面体的六角环空洞中,而羟基嵌入了铝氧八面体内。
The energy model consists of many tetrahedrons, and it not only shows the external characteristics of soft objects, but also reflects the internal structure. 能量模型由四面体构成,不仅能够体现出物体的外部特征,并且能够反映出柔性体的内部结构,得到较真实的仿真效果。
The whole parallel manipulator is divided into three tetrahedrons, and then the Taylor series expansion and Newton-Raphson numerical algorithm are used to obtain the solution for the forward kinematics. 将并联机构划分成三个四面体,并结合泰勒级数展开与牛顿&拉夫森数值计算方法得出并联机构的运动学正解。