目标描述

In other words, localization can be performed based on a general scene. In this thesis, we adopt Spatial Gaussian Mixture Model in image segmentation to describe an image viewed by the robot in spatial domain without any artificial landmark. Secondly, we use a modified combination algorithm by Cyr and Kimia to combine similar data. It is found out that a monotonic relationship exists among the scene registered and its neighborhood in terms of distance. This phenomenon can be used to assist to localize the robot and this work demonstrate the feasibility by several experiments.

本论文中采用高斯混合模型(Gaussian Mixture Model， GMM)来描述空间中的场景，将场景概念化，这样任意的场景皆可以用高斯混合模型来表达，而无需加入大量的人工场景，接著将所获取的每个希望校正点的资料采用由修改后的Cyr and Kimia的结合演算法来减低及统合资料，当场景接近原本的当初建立的场景，经由最大可能性大体上会呈现单调的特色，将辅助机器人修正回原本的位置，以达到协助机器人定位的目标。

Such writings suggest that those satellites, and navigation and early-warning satellites,"could be among initial targets of attack to blind and deafen the enemy," it said.

如此的描述暗示，一些卫星和导航，预警卫星"能够成为最初的攻击目标，这种攻击足以使敌对方盲、聋"。

In general, there is lots of geographic information on it. Point symbols, linear symbols, area symbols and texts counterchange on topographic map. Description of Relations among graphs is very difficult. Besides, there is defectiveness in scanning and deformation of map.

从总体上看，地形图承载了大量的地理信息，各种点状符号、线状符号、面状符号、文字注记在空间上纵横交错、相互叠置，反映在地形图上的是图形目标间的关系难以描述，再加扫描技术的不完善等因素，这给图象的分割和要素的识别以及拓扑信息的提取带来了很大的困难。

You are expected to describe the target segment in more than just demographic terms.

仅从人口的角度描述你的目标细分市场是不足够的。

Firstly a formal syntactic of UML statechart diagrams was given and a series of auxiliary functions to describe the structure features of UML statechart diagrams were presented in which target determinator and source restriction were used to describe the inter-level transitions and open events and close events were used to describe the communication among UML statechart diagrams.

首先给出了UML状态图的形式化语法定义，其中用状态集合、转移集合、事件集合、条件集合、活动集合、对象集合和变量集合，定义了一系列辅助函数描述UML状态图特征，用确定目标状态和受限源状态表示层次关系，用开放事件和封闭事件表示对象之间的消息。

This dissertation has conducted some information superiority oriented research focusing on some key technologies such as information acquiring, object recognition, situation assessment, threat assessment, target assignment, effectiveness evaluation of C~4ISR system, effectiveness evaluation of NCW in cognitive domain and so on. The main research and devotement of this dissertation are listed as follows: 1. Based on the analysis of physical meaning and campaign course of Lanchester linear law, we proposed a model reflecting the impact of surveillance and reconnaissance on force attrition. The model also discussed the effect of asymmetry information on the outcome of the battle, and conquered the disadvantage of Lanchester equation in modeling C~4ISR system.

本文面向信息优势对C~4ISR系统的信息获取、目标识别、态势评估、威胁估计、武器分配、效能评价以及网络中心战等关键技术进行深入研究，取得了一些创新性成果：(1)通过对Lanchester线性率中各参数物理意义及作战过程的分析，建立了反映侦察和监视效果的兵力消耗过程模型，并引入博弈论分析了战场上信息的不对称对交战结果的影响，克服了描述C~4ISR系统的Lanchester方程没有考虑作战单元、对手和环境间的动态交互以及数学结构简单的缺点。

Using the convex set model to describe the uncertainty existed in the parts design.By adopting the physical planning method to construct discontentedness function of the uncertainty parameters.

用凸集模型描述零件设计中存在的不确定性，采用物理规划方法构造不确定性参数的不满意度函数，通过极小化不满意度函数最差值实现目标函数的稳健性，通过灵敏度分析实现约束函数的稳健性。

A new method of describing and matching spatial context is proposed to effectively improve the distinguishability of objects in visual words-based image retrieval.

提出了一种空间上下文描述与匹配方法，有效地提高了基于视觉关键词的图像检索中目标对象的可区分性。

In image segmentation, whether or not find the eigenvector that can validly describe target area will directly influence the effect of segmentation.

在图像分割中，描述目标区域的有效特征向量直接影响分割的效果。

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标，在系统调研国内外文献、深入分析国内外研究现状的基础上，综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识，完成了以下研究工作并取得相应的研究成果；①通过对大量的资料调研，分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝，采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型，该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上，根据水溶性气藏数值模型编制了该数值模型的求解程序，该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响，发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响，地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性，在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性，发现在使用实验数据对水溶性气藏进行模拟时，模拟器可以很好的反映气藏开发的状态。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了