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The embedded video encoder can process A/D transform of video signal, video compressing, network protocol processing and camera controlling. Hence the hardware of encoder includes H.263 Video Encoding Unit and Network Protocol Processing Unit based on TM1300, Network Interface Unit based on RTL8139C chip and Peripheral Extending Unit based on W77E58 which deals with camera controlling.

硬件设计由以下四个单元组成：以 TM1300为核心的视频编码单元和协议处理单元；采用 RTL8139C芯片的网络接口单元；以及单片机 W77E58为核心的完成摄像头控制和透明数据传输的外围扩展单元。

The constitutionalism is based on a public sphere with negative law as rule, so that it transforms the allocation of the modern political value logically, i.e. traditionally ,only the reasonable value is legitimate, whereas in the constitutionalism, only the legitimate value is reasonable. In other words, it has changed the standard of value from the former positive logic, based on the moralization of human nature, to the negative one, based on the legalization of human nature. Rawls and Hayek demonstrate this logic conversion from different ways separately.

由于宪政的法律制度预设的乃是一个否定性的以法律为尺规的公共领域，因此就把近现代有关政治价值的定位从逻辑上进行了一番改造，即传统政治价值形态那里所表述的是，只有合理的价值才是合法的，而宪政的法律制度则反过来表述为，只有合法的价值才是合理的，或者说，它把价值标准从过去那种以人的本性的道义化为基础的肯定性逻辑，转变为以人的本性的合法性为基础的否定性逻辑。

According to recent situation of control point data management in practicalness,to tendency and to actual requirement,this essay investigates the organization and input of system data based on MapInfo,based on hard and soft facilities of the computer,based on the technology of GIS,at the same time,this essay puts forward to radical conceptions and methods of the management system of control measurement data.

结合生产实践对控制点测量成果管理的现状、趋势及实际需要，依据GIS的基本原理，以计算机硬软件设备为基础，以地理信息系统为手段，主要针对MapInfo这一系统平台具体讨论了系统数据的组织及入库，提出了GIS在控制点测量成果管理系统的基本构想和方法。

In the paper, based on the hypothesis that the failure of every poles is independent and by the method of reliability assign and reassign, the difficult problem of disposing the structure system reliability constraints is solved. Based on sensitivity information, the given system failure probability can be replaced by the sum of every element failure probability. And then the structural optimization design based on system reliability is preceded.

针对基于体系可靠性约束优化设计的关键问题一结构体系可靠性的分析和计算，在基于结构各单元失效相互独立假设的基础上，提出了以各单元失效概率之和近似体系失效概率的处理方法，并给出了体系可靠性分配和再分配的方法，以确保结构体系在优化过程中的可靠性，实现了结构基于体系可靠性的优化设计。

The first kind of the digital signature schemes is based on the discrete logarithm problem and second kind of the digital signature scheme is based on discrete logarithm and factorization problem, the third kind of the digital signature schemes is based on quadratic residue problem.

本文第一章对数字签名方案进行分类，根据数字签名方案所基于的数学问题，将签名方案分为：基于离散对数问题的数字签名方案，基于素因子分解问题的数字签名方案和基于二次剩余问题的签名方案。

Then the spatial index is constructed which includes not only the external approximate expression but also interior approximate expression of spatial object and is extended from tranditional index only with external approximate expression. The index structures of MR-tree and MRD-tree based on multi-approximate expression are set up with the prototype index of R-tree, and the relevant algorithms about the index of insertion, deletion and search are provided. Then, the efficiencies of constructing index based on the multi-approximate expression and window range query are analysised and compared. In addition, the several algorithms and efficiency of soving the maximum enclosed circle and maximum enclosed rectangle are discussed and analyzed during constructing index based on multi-approximate expression.

首先，论文讨论了空间数据的特点、空间数据库的关键技术以及空间对象间的拓扑、距离以及方向关系，分析了空间对象的外部和内部近似表达，然后将传统索引中只利用空间对象的外部近似扩展为既有空间对象的外部近似又有空间对象的内部近似，即以空间对象的多重近似来构建索引，并以R-tree为索引原型构建基于多重近似的MR-tree和MRD-tree索引结构，然后给出了相关索引的插入、删除及查找算法，并通过实验比较分析了基于多重近似索引与基于外部近似索引的构建效率及窗口范围查询效率。

Research on the Design Method for Restrainers Based on the factors effected the usage of restrainers, the design methods for the restrainers in use are analyzed, and a new design method is put forward based on response spectrum method. The method is tested with time history analysis. According to the design idea of unseating prevention devices, the static-based approach for restrainer devices is suggested.

5限位器设计方法研究在了解和分析影响限位器作用效果的各种因素的基础上，对现有限位器设计方法的优劣进行对比，提出了基于反应谱法的应用范围更广泛的限位器的实际计算方法，并采用非线性动力时程分析对计算结果进行了验证；参照连梁装置的设计思想，提出了常用的锚固限位器和限位挡块的静力设计方法。

Experiments show that rhomb partitioning is more powerful in suppressing block artifacts than square partitioning, results in much higher reconstructed image quality, but takes longer encoding time; 2 For solving exhausting encoding problem of fractal image coding, we present a fast rhomb-partitioning fractal image coding based on neighbor-searching; we present a fast rhomb-partitioning fractal image coding based on block classification; we present a fast square-partitioning fractal image coding based on neighbor-searching, block classification and wavelet transform.

2针对分形图象压缩编码过程非常耗时的致命弱点，提出了基于邻域搜索的菱形块分割的快速分形图象压缩编码方法，提出了基于块分类的菱形块分割的快速分形图象压缩编码方法，提出了基于邻域搜索·块分类和小波变换的方块分割的快速分形图象压缩编码方法，实验结果表明，我们提出的快速分形图象压缩编码与传统的分形图象压缩编码相比，编码速度提高了近40倍。

First, the traffic flow time series chaotic feature is extracted by chaos theory. pretreatment for traffic flow time series, and the wavelet neural networks model was build by this. Second, the chaotic mechanism and the chaotic probability is described. Based on chaotic learning algorithm, and the wavelet neural networks fast learning algorithm of traffic flow time series is designed based on chaotic algorithm. Last, a single-step and multi-step prediction of traffic flow chaotic time series is researched by BP neural networks, wavelet neural networks and wavelet neural networks based on chaotic algorithm. The results showed that the wavelet neural networks predictive performance is better than the BP networks and the wavelet neural networks by the simulation results and root-mean-square value.

首先，通过混沌理论提取了交通流量时间序列的混沌特征，并在此基础上建立了小波神经网络交通流量时间序列模型；接着，阐述了混沌学习算法的混沌机理、混沌产生的概率，设计了基于混沌算法的小波神经网络交通流量混沌时间序列快速学习算法；最后利用交通流量混沌时间序列对BP网络、非混沌算法的小波神经网络以及基于混沌算法的小波神经网络进行了单步预测和多步预测，并对预测结果的仿真图和真实值与预测值的方均根进行了比较，结果表明基于混沌学习算法的小波神经网络的预测性能明显优于应用BP网络和非混沌算法的小波神经网络。

Finally, the programme of design for routing protocols is chose in the thesis. Secondly, improved algorithms are introduced in detail. In order to achieve to reduce duplication of data sent in, save energy, prolong the network lifetime and balance the network load, improved algorithms are based on the minimum hops algorithm which is one of the energy-aware routing, When the characters of the minimum hops algorithm are analysed in detail,multi-path routing, adaptive dynamic routing, routing reliability are designed.Then a new algorithm based on minimum hops in plane routing protocol and a new algorithm based on minimum hops in clustering routing protocol are designed in the thesis.

接著详细介绍了本文的改进路由算法，为实现减少数据的重复发送量、节约能量、延长网络寿命、平衡网络负载的目标，本文以能量感知路由之一的最小跳数算法为基础，详细分析了最小跳数算法的特点，设计了多路径修正路由，自适应动态路由，路由可靠性机制三方面的改进方案，并且结合改进方案设计了基于最小跳数的改进平面路由协议和基于最小跳数的改进分簇路由协议，将两种类型算法的优点相结合，提高网络的健壮性与可扩展性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。