空间地

We also adopt the iterative method to study the matrix nearness problem associated with these inconsistent matrix equations systematically in this dissertation, and characterize the minimization property of this iterative method by making use of the matrix function in subspace for the first time, which is the important improvement for the achievements of references.

本文还采用迭代方法系统地研究了问题Ⅰ，并首次利用子空间上的矩阵函数来刻画该迭代方法的极小化性质，这是对已有研究成果的重要补充和完善。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

In the paper, a modified Similarity Measure Function, called Dsim, is proposed in order to solve the problem of non-contrasting behavior high dimensional space, and then a learning algorithm, called DCFCM, is advanced through the combination of Dsim and Approximated K-median and applied in intrusion detection which solves the problem of sharp border effecting problems and realizes the detection of abnormal incurrence.

本文将首先提出新的相似度函数Dsim，有效地解决了高维空间聚类选维和降维问题，实现了高效的聚类了；接着将Dsim与近似K-medians算法相结合，提出了新的模糊聚类算法----DCFCM，并将其用于入侵检测。解决了由尖锐边界、孤立点所带来的误报警和漏报警问题，实现了对异常行为的检测。

Results: The satisfactory MPR images of cochlea, bony semicircular canals, internal auditory meatus and other intratemporal structures can be obtained. The SSD images could show some important bony marks of temporal bone and spatial relationships between them clearly. On coronal plane, SSD images can vividly demonstrate the shape and spatial relationships of malleus and incus. A series images were obtained as the virtual endoscope moved from the external auditory canal to the middle ear cavity.

结果：MPR能在不同切面显示耳蜗、半规管、内耳道及面神经管垂直段等结构，显示率为100%；SSD能清晰显示颞骨重要的骨性结构，如内耳门、颈静脉孔等，冠状位切割后的SSD图像能生动地显示锤骨、砧骨的立体形态及空间关系；CTVE可模仿内窥镜从外耳向中耳移动，清晰显示骨性外耳道、鼓室内侧壁及听骨链等结构。

RESULTS Cochlea,semicircular canal,scutum,internal auditory canal,vertical segment of facial nerve canal were clearly shown in all cases by different slices of MPR images.3D CT can vividly demonstrate the shape and spatial relation-ships of malleus and incus.

三维CT能生动地显示锤骨、砧骨的立体形态及空间关系。

Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.

分析了算法的时间复杂度，研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准，从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数，对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试，分析了仿真结果，研究了文化算子对算法的影响。4、基于集覆盖的概念，研究了MAS中的任务分配问题，建立了任务分配问题的分层数学模型，给出了子任务分解共同进化算法，实验比较了IGA、SGA、CN，验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题，结合多种改进GA策略，提出了策略型拟子，给出天线加载设计的共同进化算法，对有耗半空间对称偶极子天线加载优化设计作了仿真实验，验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识，采用单类拟子和实数编码，给出快速共同进化匹配算法策略，基于NPROD相似度测度，仿真试验了无差别和有差别模板匹配，验证了共同进化算法对实数编码和实时性搜索问题上的有效性。

One never thinks of China, but it is there all the time on the tips of your fingers and it makes your nose itchy; and long afterwards, when you have forgotten almost what a firecracker smells like, you wake up one day with gold leaf choking you and the broken pieces of punk waft back their pungent odor and the bright red wrappers give you a nostalgia for a people and a soil you have never known, but which is in your blood, mysteriously there in your blood, like the sense of time or space, a fugitive, constant value to which you turn more and more as you get old, which you try to seize with your mind, but ineffectually, because in everything Chinese there is wisdom and mystery and you can never grasp it with two hands or with your mind but you must let it rub off, let it stick to your fingers, let it slowly infiltrate your veins.

一个人永远也不会想到中国，可它一直沾在你的指尖上，叫你的鼻子直发痒。很久以后，当你几乎全然忘记了爆竹的气味之后，某一天你会被金箔呛醒，破碎的引人棍又送来刺鼻的气味，艳红的包装纸使你对根本不了解的一个民族、一个国土产生了眷恋之情。尽管你并不了解它，它在你的血液中流动，神秘地流动。像时间或空间这类时隐时现却又永恒的概念，越年老你便越仰慕它，试图用脑子去理解它，可是却不成功，这是由于中国的每一件事物中都孕含智慧和神秘，你无法用双手抓住它，也无法理解它，只得由它去，由它沾在你手指上，由它渐渐渗进你的血管中。

Analyzes the basic features of a special GIS applications and its basic demand, points out the localization of integrated GIS platforms and its inelasticity, and presents a spatial data model based on constructed point set storage to satisfy with the demand of the special GIS application.

分析了一类特殊GIS应用的基本特点和基本功能需求，指出了现有GIS平台的局限性和对该类应用的不适应性，针对该类特殊的GIS应用，创造性地提出了能满足其要求的基于构造点集的全关系型空间数据模型。

According to this understanding, this thesis tries to modify PSO algorithm in order to improve its quality of solutions. The main approches include: using uniform design to ensure the uniform distribution of initial particles in the design space; adding mutation operation to increase the diversity of particles; decreasing the maximum velocity limitation and the velocity inertia automatically to balance the local and the global search efforts; developing a new approach to treat the design variables exceeding the bounds; using extensive local searches to escape local minimum. The overall effect of these approaches can yield better results for most test problems.

有鉴於此，本文针对粒子群演化法之流程参考相关文献并稍作改变，使得粒子群演算法在结果的收敛上更具优势，本文的主要改进的方法包括：应用均匀设计的概念使得初始的粒子可以更均匀地分布在空间上；利用突变增加粒子之间的差异性与多样性；利用适当控制的最大速度限制及惯性权重控制，达到区域搜寻与全域搜寻的效果；应用新的边界处理机制处理设计变数超过上、下限的问题；利用区域强化搜寻针对粒子附近地区，再作进一步的搜索以得到更佳之结果；将各种方法综合后配合粒子群演算法使用，可以得到不错的结果。

It must be developed randomly and organically for any urban site , while infilling architecture and space we must respect the historical background and existing city texture besides essential function aim and trustily present them in new planning .

城市中任一地块的发展必是随机且有机的，在填充建筑或空间时，除须满足其基本的目标功能外，有必要尊重其历史背景及既有的城市肌理，忠实地反应在新的开发规划上。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。