构造上

In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

这章具体研究了基于三种极化散射特性描述的相应的目标识别方法：①基于极化参数平面描述的目标识别方法，将目标回波极化状态投影到以极化椭圆参数，即椭圆率角ε和倾角τ表征的极化状态平面上，参数随观测频率的变化就形成了图，根据图的变化特点构造了目标的多维极化特征空间，并提取了不敏感目标姿态变化的极化特征参数组来设计目标的识别器结构；②基于Poincare极化球面描述的目标识别方法，采用Stokes矢量表征目标回波的极化状态，并将其投影到描述极化状态的Poincare极化球面上，定义了极化频率稳定度的概念用以刻画目标回波极化状态在Poincare极化球面上的动态分布信息，提取了准方位不变性的目标极化特征，最后设计了目标的识别器结构；③基于频率敏感性描述的目标识别方法，通过在Poincare极化球面上所定义的极化状态距离的概念，研究的是复杂目标物理结构特性对探测信号频率的敏感程度问题，获得了在极化状态距离下的频率分布特性曲线，采用最小二乘估计曲线拟合方法，它既用于极化特征的降维，同时又直接将拟合参数作为目标的分类特征。

It describes the color characteristic of device accurately through constructing the geometric model and builds gamut mapping model in the section plane of gamut by dissecting. The improvement of image characteristic obtaining at real time satisfies the application and supports the adaptive gamut mapping. The sampling and visualization of sample set in different color space show the optic difference and give the error analysis of the color conversion between them. Based on the study of the color relation among the color spaces, the visualizing color can be created automatically with conversion formulas.

该工具在获取彩色输入／输出设备彩色特性的基础上，通过构建几何模型对设备色域进行了精确描述；利用对色域的剖分操作，构造基于剖面的色域匹配模型；通过改善图象彩色特性获取的实时性，使其能有效获取图象源的特征并满足色彩管理的应用需求，支持了自适应色域匹配；对不同色彩空间样本的采集和对比显示有效体现了色彩的视觉差别，并提供了它们之间转换的误差分析；在探究不同色彩空间的颜色对应关系的基础上，实现了可视化的真彩颜色的自动生成，使可视化颜色更加逼真。

On the basis of summarizing and studying forefathers work of CSCW field, this thesis did the following discussion and rearching aimed at questions about designing, platforming, opening, etc. Cooperating work model is the foundation of CSCW design. In chapter 2, we put forward several common model that reflect group cooperation work on the basis of analysing previous work model. The propose is to provide the support for various cooperative means and activitys. This common model has serveral Functions such as scaleability. Such a general model can meet and guide the development facing various kinds of concrete CSCW system.

本论文在总结和研究前人在CSCW领域工作的基础上，针对CSCW设计、平台、开放性等方面所存在的问题，作了以下的探讨和研究：协同工作模型是CSCW设计和构造的基础，第二章在分析以前协同工作模型的基础上，提出几种反映群体协作工作的一般模型，旨在提供对多种协作方式和协作活动的支持，具有多功能特性，并使模型具有可伸缩性，这样的一般模型可以适应并指导面向各种具体应用的CSCW系统的开发。

These edges profiles are also configured to inhibit redeposition of residue particulates on the top surfaces of the wafers during semiconductor processing steps.

还构造这些边缘轮廓以在半导体加工步骤期间抑制在晶片上表面上再淀积残存颗粒。

First, a map between the cones and tangent surface on C-Bézier curve und two-dimensional plane is found respectively and then a ruled surface between two Bezier curves is constructed and a sufficient condition on its developablity is given.

zier曲线上锥面、切线曲面的展开方法。然后，构造两条空间B？zier曲线上的直纹面，给出了它成为可展曲面的一个充分条件，并通过保角保长原则，将其贴合到平面上。

To simplify and reduce the effort required for solving control equations, separation of time-space variables is invoked.

在此基础上，在整个时间空间上构造了迭代求解方法，将问题化为局部状态变量修正和全局控制变量求解问题；从而形成了有限变形问题过程最优控制计算方法的理论基础。

A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.

本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象，以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线，在详细的野外工作基础上，综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段，重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学，查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点，恢复重建其形成演化过程，探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。

An opening in the surface of a structure, as in a membrane .

薄膜开口一种在构造表面上的开口，如在薄膜上

Based on the surjection of maximal monotone operators, we prove that some semilinear heat equations with weak Lipschitz nonlinear terms are exactly controllable by L〓 0, T: H〓(Ω control; Based on the critical point theorem of coercive convex functionals, we prove that some parabolic equations with Lipschitz nonlinear terms are globally approximately controllable and finite-dimensional exactly controllable by controls acting on mobile supports, and finally, we extend the results to parabolic equations in R〓.

首先利用极大单调算子的满射原理证明了半线性热方程在较弱Lipschitz条件下可通过L〓0.T；H〓(Ω控制实现精确能控。然后通过构造强制凸泛函并利用其临界点理论证明了带Lipschitz非线性项的抛物型方程可通过作用在在移动支集上的控制来实现整体近似能控与有限维精确能控，最后将整体近似能控与有限维精确能控结论推广到无界区域R〓上。

Study on Applying CSG Method to 3D Model of Buildings;2. Research of 3D Model on Road Engineering Geology;3. A new kind of stair-climbing vehicle construction based on the structure principle of telemotor vehicle and design feature of micro mobile vehicle for scout as a preliminary research achievement is designed, and its 3D model is created with MDT software.

在预研完成的微小型移动侦察车的基础上，受遥控电动小车构造原理的启发，设计了一种可爬越楼梯的新型的车辆结构，并采用三维机械设计软件MDT完成了三维建模，同时还简要地分析了该车爬越楼梯的力学原理，在一定程度上促进了微小型地面移动机器人技术的研究开发工作。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。