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Firstly,the cameras were calibrated high accurately,and the stereoscopic vision system model was established.Secondly,the 3D coordinates of the center of LED on the light-pen were achieved through matching the 2D images grabbed by the two cameras.Then,a series of the 3D coordinates of the center of LED were used for fitting straight line,and the 3D coordinates of the pen-points can be obtained from the line.

首先,对摄像机进行了高精度的标定,建立了双目立体视觉系统模型;其次,通过左右摄像机拍摄的二维图像,将两幅图像中的点进行匹配,获得光笔上的LED光斑中心三维坐标;然后,由一系列LED光斑中心的三维坐标拟合直线,从直线上得到笔尖的三维坐标。

The two-dimensional sampling using two transects meet at right angles was applied to get quadrat data in this study.The detrended correspondence analysis ordination technique combining pattern analysis method is used for community pattern analysis here.

用垂直相交的两条样带在两个方向上同时取样的二维取样法,获得数据,用DCA排序与格局分析相结合的方法,得到群落不同格局规模斑块的长、宽及面积,实现二维格局研究。

According to the variational characteristics of physical variates in discrete for-mation model,we achieve physical variate description using Walsh function .

文中给出了两个定义和四个定理,研究了一维、二维和三维离散地层模型的沃尔什函数描述法,并给出了一维模型的描述实例。

In the case of study, the better fittable algorithm of volume visualization is selected in accordance with the analysis of the software.

三维可视化是科学计算可视化和三维GIS密切联系的纽带,本文综述该方面的发展趋势,研究了两大类三维数据场可视化算法:表面拟合方法(Surface-fitting method)和直接体绘制(Direct Volume Rendering,DVR)。

Notably, compounds 12–14 can be described as a 3D open–framework with nano–channels, compound 15 can be described as a 3D open–framework with double helical channels, while compound 16 can be described as a 3D heterochiral coordination polymer with double helical channels, which can be obtained by spontaneous resolution from the racemic phosphonic acid.X–ray powder diffraction analysis shows that compound 16 is a pure phase. Surface photovoltage spectroscopy of compound 16 indicates that it possesses positive SPV response in the range of 300–600 nm and shows p–type semiconductor characteristic.

值得注意的是,化合物12-14为具有一维纳米孔道结构的三维开放骨架结构,化合物15是具有双螺旋孔道的三维开放骨架结构,而化合物16是外消旋的有机膦酸配体通过自发拆分而形成的具有双螺旋孔道的多手性三维开放骨架结构。X-射线粉末衍射分析表明化合物16为纯相;化合物16的表面光电压光谱分析中,在300-600nm范围内有3个正的光(来源:ABC论文12网www.abclunwen.com)伏响应带,表明它具有p型半导体的特征;化合物16的诱导表面光电压谱进一步确定它的p型半导体的特征;磁性研究表明,化合物16中两Mn原子之间存在弱的反铁磁相互作用。

The first pan of this dissertation involves: the study of the interaction of DNA and a kind of neurotransmitter, aderenaline; development of a novel method for immobilization of DNA and methylene blue on micro-hollow paraffined graphite electrode and paraffin encapsulated micro-hollow-array carbon disk electrode M (h ApCE ; investigation of the three dimensional electrode.

本论文分两部分,第一部分包括:研究了DNA和神经递质肾上腺素的相互作用,并通过电化学氧化腐蚀充蜡石墨电极、碳纤束充蜡电极发展了一种固载DNA的新方法,提出了三维固载的机理,并在电极的填充介质和电极上修饰不同的物质两方面对该三维电极进行了研究。

There are two methods are often used. A method is constructing some separate polyhedrons from vertex and edges of 3D wire-frame and combine the polyhedrons with each other one by one. Another is extracting wire-frame to some candidate faces and joining them up according to the nature of 3D object.In this paper, an algorithm of reconstructing 3D object from wire-frame was put forward.

目前有两种方法:一种是把三维实体看成由多个多面体组成的,相应的方法是将线框模型拆分成多个多面体,然后进行多面体的拼接组合重构三维实体;另一种方法是把三维实体看作由多个面组成的,相应方法是搜索可行面并根据三维实体的特点来重构。

Firstly, took the data of body model and garment model, and then finished the match with the curvature feature of triangular mesh by making mapping between body model and garment model, this process was a rigid transformation. In fact, it comprised the rotation matrix and translation vector. Finally, under the VC6.0, set up the platform of 3D clothing fitting by the super 3D building of OpenGL.

首先提取Poser 6.0中的三维人体模型和服装模型数据;然后通过三维网格模型的曲率特征在人体模型与服装模型之间建立映射关系来完成匹配,这个过程是一种刚体变换即获取旋转矩阵和平移矢量两部分;最后在VC++6.0的开发环境下,利用OpenGL强大的三维建模功能实现了三维试衣平台的搭建。

Stockell kept a diary. He recorded that he came in below Vierville, that the skipper of the LCI feared the underwater beach obstacles mines and thus forced him to off in chest-deep water, that he saw equipment littering the beach, and then "The first dead American I see are two GIs, one with both feet blown off, arms wrapped about each other in a comradely death embrace."

斯托克保留着一本日记,日记记录了,当来至维尔维村下方时,LCI舵手担心水下滩头障碍雷,强令他离船,下到齐胸深水里,斯托克看到滩头零乱丢弃的装备,以及&我见到的第一批阵亡美军——两个大兵;样子是两脚肿胀,双臂亲密环抱对方的死亡拥抱。&

However,there have been no papers which have investigated Minkowski and Minkowski slant helices and Minkowski conical geodesic curves so far as.In this paper,our major study is to give the definition of Minkowski general helix and Minkowski slant helices and Minkowski conical geodesic curves in indicators 1 in pseudo-Euclidean three-space (that is, three-dimensional Minkowski space), and study the definition of equivalence Minkowski general helix, By considering geometric invariants of these space curves, we can estimate the order of contact with those special curves for general space curves.

本篇文章主要研究在指标数为1的3维伪欧氏空间(即三维Minkowski空间)中,我们给出Minkowski一般螺线、Minkowski斜螺线和Minkowski锥面测地线的定义,研究Minkowski一般螺线的等价定义,给出Minkowski斜螺线和Minkowski锥面测地线作为三维Minkowski空间中的特殊曲线所特有的性质,并通过考虑三维Minkowski空间曲线的几何不变量,估计Minkowski斜螺线和Minkowski锥面测地线这两种特殊曲线和一般Minkowski空间曲线切触的阶数。

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She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

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