四面体化,tetrahedralization,在线英语词典,英文翻译,专业英语

1) tetrahedralization

四面体化

But original Delaunay tetrahedralization can not be used for the points set with constrained boundary and the degenerate points set in which four or more points are coplanar or in which five or more points are cospherical.

Delaunay空球准则广泛应用于3维四面体剖分算法,但标准的Delaunay四面体化只适用于点集的凸包区域,且要求不存在多点共球。

2) Delaunay tetrahedralization

Delaunay四面体化

3) conforming Delaunay tetrahedralization

限定Delaunay四面体化

The approach,which is base on boundary recursive method and incremental conforming Delaunay tetrahedralization,uses the Delaunay tetrahedralization of adaptive sample point set on surface to help to build the surface Delaunay triangular mesh with the application of property of minimal minimum circumsphere.

该算法在曲面网格剖分的边界递归算法和限定Delaunay四面体化算法的基础上,利用曲面采样点集的空间Delaunay四面体网格来辅助曲面三角网格的生成,曲面上的三角网格根据最小空球最小准则由辅助四面体网格中选取,每个三角形都满足三维Delaunay空球准则,网格质量有保证,并且极大的方便了进一步的曲面边界限定下的Delaunay四面体化的进行。

4) 3D-Delaunay tetrahedron algorithm

3D-Delaunay四面体化算法

With the boundary key points of four neighborhood layers,three-dimensional solids between the two adjacent layers are produced according to 3D-Delaunay tetrahedron algorithm.

5mm、厚度1mm的每一层断层图像进行二值化、边界提取,并筛选出边界关键点;根据相邻4层边界关键点数据,采用3D-Delaunay四面体化算法,在两层之间生成3维单元实体;根据估算外法线向量与球心顶点向量的内积正负情况对每个单元实体的有效性进行检查;把全部有效实体单元进行3维实体布尔运算,得到牙齿的实体模型。

5) tetrahedron

正四面体

With a variational method and a modified arrangmement channel quantum mechanics(MACQM) method,the energies of a equilateral triangle H-3 and a tetrahedron H-4 system are calculated.

采用改进排列通道量子力学(Modified Arrangement Channel Quantum Mechanics,简称MACQM)方法和变分法,计算了H3体系正三角形和H4体系的正四面体结构的能量曲线。

Some of the cross sections are used to stand for a centain component, and semiternary phase diagrams are ploted, then a quaternary phase diagram shown in a tetrahedron is obtained.

提出了利用正四面体的某些截面表示一定组成，得出相分离曲线和相分离曲面，并能较好地描述四元体系。

6) pyramidal tip

四面锥尖

The results indicate that the tip of this geometry can not only produce focusing spot at nanometer scale but also engender enormous field enhancement under the excitation of plane wave from the base of pyramidal tip.

利用(FD)2TD方法对全镀金属膜四面锥尖端近场的光增强分布进行了数值模拟,结果表明在平行光束从全镀金属膜四面锥底面入射条件下,尖端近场可以获得纳米尺度的聚焦光斑,并且光场可以得到较大的增强。

In order to understand the application of opposite vertical pyramidal tips in single molecule damnification and measuring system,enhancement of opposite vertical pyramidal tips was analyzed and computed.

为了探索对顶四面锥尖在分子损伤和检测中的应用,利用处理色散介质的时域有限差分法((FD)2TD)计算和分析了对顶四面锥尖之间的光增强,研究了不同锥体长度和激励光波长对光增强的影响。

参考词条

Thompson四面体碳四面体 VO_4四面体四面体簇十四面体四面体法 Delaunay四面体 [BO_4]四面体四面体群 [AlO4]四面体 Ceva四面体四面体元 SiO_4四面体网络诱骗系统 "购货中心,商店区"

补充资料：四面体数

四面体数

四面体数或三角锥体数是可以排成底为三角形的锥体（即四面体）的数。四面体数每层为三角形数，其公式是首n个三角形数之和，即n(n + 1)(n + 2) / 6。其首几项为：1, 4, 10, 20, 35, 56, 84, 120...（oeis:a000292）

四面体数的奇偶排列是“奇偶偶偶”。

1878年，a.j. meyl证明只有3个四面体数同时为平方数：1, 4, 19600。唯一同时是四面体数和正方锥数的数是1（beukers (1988)）。

它们可以在杨辉三角每横行从右到左或左到右的第4项找到。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

首页 \| 翻译 \| 影视 \| 论坛 \| 索引四面体四面刨床假四面体四面刨 MoO4四面体

1) tetrahedralization 四面体化 1. But original Delaunay tetrahedralization can not be used for the points set with constrained boundary and the degenerate points set in which four or more points are coplanar or in which five or more points are cospherical. Delaunay空球准则广泛应用于3维四面体剖分算法,但标准的Delaunay四面体化只适用于点集的凸包区域,且要求不存在多点共球。 2) Delaunay tetrahedralization Delaunay四面体化 3) conforming Delaunay tetrahedralization 限定Delaunay四面体化 1. The approach,which is base on boundary recursive method and incremental conforming Delaunay tetrahedralization,uses the Delaunay tetrahedralization of adaptive sample point set on surface to help to build the surface Delaunay triangular mesh with the application of property of minimal minimum circumsphere. 该算法在曲面网格剖分的边界递归算法和限定Delaunay四面体化算法的基础上,利用曲面采样点集的空间Delaunay四面体网格来辅助曲面三角网格的生成,曲面上的三角网格根据最小空球最小准则由辅助四面体网格中选取,每个三角形都满足三维Delaunay空球准则,网格质量有保证,并且极大的方便了进一步的曲面边界限定下的Delaunay四面体化的进行。 4) 3D-Delaunay tetrahedron algorithm 3D-Delaunay四面体化算法 1. With the boundary key points of four neighborhood layers,three-dimensional solids between the two adjacent layers are produced according to 3D-Delaunay tetrahedron algorithm. 5mm、厚度1mm的每一层断层图像进行二值化、边界提取,并筛选出边界关键点;根据相邻4层边界关键点数据,采用3D-Delaunay四面体化算法,在两层之间生成3维单元实体;根据估算外法线向量与球心顶点向量的内积正负情况对每个单元实体的有效性进行检查;把全部有效实体单元进行3维实体布尔运算,得到牙齿的实体模型。 5) tetrahedron 正四面体 1. With a variational method and a modified arrangmement channel quantum mechanics(MACQM) method,the energies of a equilateral triangle H-3 and a tetrahedron H-4 system are calculated. 采用改进排列通道量子力学(Modified Arrangement Channel Quantum Mechanics,简称MACQM)方法和变分法,计算了H3体系正三角形和H4体系的正四面体结构的能量曲线。 2. Some of the cross sections are used to stand for a centain component, and semiternary phase diagrams are ploted, then a quaternary phase diagram shown in a tetrahedron is obtained. 提出了利用正四面体的某些截面表示一定组成，得出相分离曲线和相分离曲面，并能较好地描述四元体系。 6) pyramidal tip 四面锥尖 1. The results indicate that the tip of this geometry can not only produce focusing spot at nanometer scale but also engender enormous field enhancement under the excitation of plane wave from the base of pyramidal tip. 利用(FD)2TD方法对全镀金属膜四面锥尖端近场的光增强分布进行了数值模拟,结果表明在平行光束从全镀金属膜四面锥底面入射条件下,尖端近场可以获得纳米尺度的聚焦光斑,并且光场可以得到较大的增强。 2. In order to understand the application of opposite vertical pyramidal tips in single molecule damnification and measuring system,enhancement of opposite vertical pyramidal tips was analyzed and computed. 为了探索对顶四面锥尖在分子损伤和检测中的应用,利用处理色散介质的时域有限差分法((FD)2TD)计算和分析了对顶四面锥尖之间的光增强,研究了不同锥体长度和激励光波长对光增强的影响。参考词条 Thompson四面体碳四面体 VO_4四面体四面体簇十四面体四面体法 Delaunay四面体 [BO_4]四面体四面体群 [AlO4]四面体 Ceva四面体四面体元 SiO_4四面体网络诱骗系统 "购货中心,商店区" 补充资料：四面体数四面体数四面体数或三角锥体数是可以排成底为三角形的锥体（即四面体）的数。四面体数每层为三角形数，其公式是首n个三角形数之和，即n(n + 1)(n + 2) / 6。其首几项为：1, 4, 10, 20, 35, 56, 84, 120...（oeis:a000292）四面体数的奇偶排列是“奇偶偶偶”。 1878年，a.j. meyl证明只有3个四面体数同时为平方数：1, 4, 19600。唯一同时是四面体数和正方锥数的数是1（beukers (1988)）。它们可以在杨辉三角每横行从右到左或左到右的第4项找到。说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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