查询词典 Cartesian coordinates

Parallel coordinates visualization based on dimension constraints and application on data clustering, Journal of Fuzhou University Natural Edition

2007，35(2)：196-200高飞，樊明辉，关玉梅，陈崇成。 Hyperbolic技术及其在海洋环境质量评价与分析中的应用，福州大学学报(自然科学版， 2007， 35(2)：

For the data provided by BCI competition,the parallel coordinates visualization method is used to recognize the imaginary right and left hand movements based on the phase synchronization coherency index and linear discriminant analysis.

本文以脑机接口竞赛的运动想象脑电数据为对象，以平行坐标可视化技术为手段，基于相位同步指数和线性判别分类器对左右手想象意识任务进行识别。

Brain-computer interfac ; phase synchronization ; information visualization ; parallel coordinates

脑机接口；脑电同步；信息可视化；平行坐标

This paper determines the design idea of combining VISC with structural optimization design. Problems which existed in structural optimization design are analyzed and contents of optimization process are determined. Calling and dominating calculation program written in FORTRAN in the development environment of Delphi are realized by the techniques of FORTRAN/Delphi mixed-language programming and multi-threaded application. Parallel coordinates visualization technology is deeply researched and applied in software exploitation of optimization process. Essential programs of VISC software are compiled. Approaches which can improve efficiency of optimization are discussed. In the end, functional modules are integrated and a typical computational example is verified.

本文通过对结构优化设计和科学可视化的研究，确立了天线结构优化设计与科学计算可视化技术紧密结合的思路；根据天线结构优化设计的特点，针对优化设计中存在的问题，对系统结构优化的总体框架进行了分析和论述，确定了优化过程可视化的具体内容；通过FORTRAN与Delphi的混合语言编程实现了在Delphi环境下对FORTRAN计算程序的调控，充分利用了原有FORTRAN程序资源；对平行坐标技术进行深入研究，并将其应用于优化过程可视化模块的软件开发中，实现多维数据空间的可视化；编写优化计算过程可视化软件的核心程序；探讨了提高优化效率的途径；对基于可视化的天线结构优化设计软件系统进行集成，针对某天线进行了算例验证。

A notable merit of parallel coordinates is its well-founded mathematical foundation.Its projective geometrical interpretation and duality properties facilitate the simultaneous projection information representation of multiple low dimension subspaces.

平行坐标的一个显著优点是其具有良好的数学基础，其射影几何解释和对偶特性使它可以很好地同时表达高维数据在多个低维子空间的投影信息。

In thes paper, the general algorithm for finding the coordinates of intersection pointswhen Linear structure cutting cross the parallel curve of highway is given, which is simple inprinciple, direct in calculation process and quite suitable for computer programming.

本文论述了线状构筑物在穿过道路曲线或其平行线时，其交点坐标的解算方法。

Luneberg lens is a spherical lens which its permittivity varies with normalized radial coordinates. It is fabricated by using different homogeneous dielectric centrically layered media. The lens can focus a parallel beam of rays from any direction exactly at a point on the surface. If it is made by adding a reflecting surface "metallic cap", it is called Luneberg lens reflector. It can reflect incident wave into plane wave in incoming direction. It is usually applied in antenna, radar reflector,satellite-based, and mobile-communucation.

龙伯球透镜为一种介电系数与半径成一固定比例的球形透镜，大部分是由数层不同介电系数介电质组合而成，而其主要特性能够把入射波聚焦到球表面一点，假使在透镜表面处镀上一圆锥角金属层即为龙伯球透镜反射器，能把入射波依平面波的型态反射回原入射端，通常用於天线、雷达、卫星通讯、军事等方面。

According to cam design requirements, design calculation cam main parameter and cam contour surface space coordinates data.

根据凸轮设计要求、设计计算凸轮的主要参数及凸轮廓面的空间坐标数据。

As the conduit for the parasympathetic nervous system, the central channel coordinates our involuntary or autonomic nervous system activities.

作为副交感神经系统的渠道，在中央通道坐标的非自愿或自主神经系统的活动。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。