网络结构

A novel dynamic recurrent fuzzy neural network based on TSK fuzzy model is presented to the nonlinear dynamic system, it can gain better tracking ability in the identification or control to nonlinear dynamic system.

3针对非线性动态系统特点，提出了一种新型的基于TSK模糊推理的动态回归网络结构，并给出了一种新的学习算法—约束优化学习算法。

Primarily, the thesis assays the condition of network framework, the network was divided into three levels in terms of network management in order to establish the distributed method ,and still pointing out the intention and denotation of studying the Topology Discovery.Next, the thesis analyzes SNMP protocol minutely, including its development, principle, and the Network Management system that established on the SNMP protocol. Have analysed MIB in detail and the application way of MIB in network management .The thesis also assays the ICMP protocol, describing its working principle and the format of datagram minutely , and describing two important tools of ICMP- Ping and TraceRoute in detail. On the base of upper analysis, the thesis expounds a kind of distributed Topology Discovery project, and book it in one autonomy system. Topology Discovery was divided into two levels in terms of network management, and analyses the way of linking up between the two level. The thesis minutely assays Router-Level Topology Discovery technology basing on SNMP and Subnet-Level Topology Discovery technology basing on ARP and ICMP. According to these analyses, the thesis explores the specific methodology and the technology of XML data object which using the WinSNMP API to achieve topology discovering system on the development platform of Visual C++, and also analyses the technology of topology analysis and topology graph minutely. Moreover, the thesis assays the technology of basic firewall and Topology Discovery response strategy. Finally, the thesis analyses the underlying blind problem of the topology finding, and also analyses the reason that the blind problem produced and the way that reduced. The distributed algorithm that this paper puts forward has a certain directive significance in wireless network or other fields.

本文首先分析了网络结构状况，将网络从网络管理的角度划分为三个层次，为分布式的方法奠定了基础，同时还指出拓扑发现研究的目的及意义；接着本文分析了SNMP协议，详细分析了SNMP协议的发展状况，协议的工作原理，以及由SNMP协议基础上建立的SNMP网络管理体系，详细分析了MIB，以及MIB在网络管理上的应用方式；本文又分析了ICMP协议，详细描述了ICMP的工作原理和数据报格式，并详细描述了ICMP的两个重要工具-Ping 和TraceRoute；然后本文在结合上述分析的基础上，提出了一种分布式的拓扑发现方案，将拓扑发现拟订在一个自治系统内，将拓扑发现从网络管理角度划分为路由器级和子网级两个层次，分析了两个层次之间的衔接方式，同时从拓扑地域的角度将拓扑发现过程分布化，分析了分布式算法的具体方法和分布式结点之间的数据通讯方法，本文详细分析了基于SNMP的路由器级拓扑发现技术和基于ARP和ICMP的子网级拓扑发现技术；根据这些分析，本文利用XML数据对象作为分布式算法中的数据对象，分析了XML的技术，本文使用Visual C++开发平台实现网络拓扑发现系统，详细分析了使用WinSNMP API实现基于SNMP的路由器级拓扑发现和基于ARP的子网级拓扑发现，分析了使用Winsock编程实现基于ICMP的子网级拓扑发现，本文还对拓扑分析和拓扑图的绘制技术作了较细致的分析；本文最后还分析了基本防火墙技术，分析了几种类型的防火墙对拓扑发现带来的影响，以及在拓扑发现时的应对策略，本文还分析了拓扑发现中可能产生的盲点问题，分析了盲点产生的原因以及拓扑发现中减少盲点的方法。

In this paper, a new method of learning Bayesian network structure with missing data is presented. First, unobserved data are randomly initialized.

针对这些问题，建立了一种新的具有丢失数据的贝叶斯网络结构学习方法。

Optimum designs of fundamental circuits such as analog switch, reference resistor ladder and voltage comparator are also carried out.

首次提出并联方式参考电压电阻网络结构，有效地提高了参考电压的精度，加快了输出稳定速度。

While the good qualities of ABNET are reserved,such as structure generated automatically, unsupervised and competitive learning based on clone selection and mutation,the way of initiating ABNET, expressing a antibody, updating structure is improved properly.

在保留抗体网络的结构自动生成，基于克隆选择、变异机制的无监督竞争学习等优点的同时，对抗体网络的初始化、抗体的表示方式、网络结构的更新等方面作了适当的改进。

For decreasing the quantity of the organic solvent and saving the environment, this paper is focused on the preparation of stable TiO2 sol by using titanium alkoxide as precursor and water as solvent while adding acetic acid for the purpose of moderating the rate of hydrolysis.

溶胶-凝胶处理可以在织物的表面形成复杂的氧化物网络结构，这层凝胶固着在织物的表面，改表纤维的表面化学性能，赋予织物一定的功能性。

This thesis aims to find out the problems of the existing systems and bring forward an ameliorative scheme, including the design of the balance center, surveillance system on toll and so on.

本文就是基于这一点，分析提出现有的联网收费系统中存在的问题，提出了相应的解决方案，包括结算中心的设计、收费监控、网络结构和数据库系统的选择。

Leveraging network structure: we concurrently develop both structures for network topology and protocols that take advantage of these structures to achieve dependable, simple, and analyzable networks.

平衡网络结构：我们并行开发网络拓扑结构和协议，这种协议利用拓扑结构实现可靠的，简单的和可分解的网络。

Different mechanical environments in and out of tumor play an important role in the process of tumor-induced angiogenesis.

肿瘤内外不同的力学环境对肿瘤血管生成的网络结构有着重要影响。

The results indicates that the glass transition temperature T(subscript g increases, the intensity of exothermal peaks decrease, the thermal stability of the tellurite glass improves, and TeO3 trigonal pyramids transform into TeO4 trigonal bipyramid, when other metal oxides such as TiO2, BaO and WO3 were introduced and the content of TeO2 was fixed.

结果表明，在TiO2的含量一定时，引入其他金属氧化物TiO2、BaO和WO3，玻璃转变温度升高，放热峰强度减弱，碲酸盐玻璃的热稳定性提高。而Raman光谱表明，随着其他金属氧化物的引入，玻璃网络结构中的TeO3三角棱锥体向TeO4双三角锥体转化。

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。