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。
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。
An effective method of constructing geological model by using tetrahedron;
一种有效的四面体体元构建地质体模型的方法
A New Generation Tetrahedron Mesh Technique of Complex Mining Geological Bodies;
面向矿区复杂地质体的四面体生成算法
By amending the auxiliary geometric primitive,diagonal,of generalized tri-prism(GTP) into tetrahedron,the inconsistentness of data organization and of geometric primitive in real 3D geosciences modeling as well as the geometric interstice in spatial operation were solved.
将广义三棱柱(GTP)的辅助几何要素———对角线———修正为四面体,解决了R3DGM(真三维地学模型)中数据组织与几何要素的不一致和空间操作中的几何裂缝问题。
After reconstructing ,the common four surfaces planer has many functions such as automatic adjusting cutting tool and automatic machining floors.
根据竹地板加工工艺对四面刨床的要求,对MB402E普通四面刨床的刨切、开榫等关键性工艺实施数控化改造,使普通四面刨实现了自动调刀、自动加工等功能。
The article introduces a processing tool——four sides blade,which is often used in woodworking,and gives its category,scale and characteristics of technology of processing in woodworking.
对木材加工中常用的铣削加工工具——四面刨从分类、加工工艺范围、加工工艺特点等方面作了详细介绍,建议在生产中根据实际情况具体分析,灵活掌握,多选用中型偏小和小型四面刨,以最大限度地发挥设备效用。
Besed on Thompson four sides body.
以Thompson四面体为基础 ,把已确定的A_M相变存在的K_S关系和N关系全部可能的 2 4组取向和 12组取向标注于 { 111} A∥ { 110 } M 构成的四面体上 ,并给出了该四面体展开图 。