基础结构的基础设施的

However, with the rapid development of the small town, some problems and contradictions about the small town planning and construction in the Midwest Lack-developed Areas emerge by and by: lots of small towns have not transparent tactic steering and scientific economic management mechanism and pattern, leading to construction confusion, ground use squandering, environment pollution, industrial structure reasonable, infrastructure layout disharmonize; without supervise law and rule in the small town construction, leading to the small town being be out of harmony with the area, the function of small in the area is restricted; the small town resource being used freely, and the administration coming to chaos, leading to repetition construction, resource waste, and so on.

论文以"三农"问题为切入点，紧紧围绕中西部欠发达地区小城镇规划与建设所面临的关系小城镇未来发展的三个关键问题：土地利用、生态环境和基础设施建设等进行深入剖析，分析问题产生的原因：城乡二元结构是导致小城镇建设问题的主要原因；观念保守，体制不健全；财政财力不足，基础设施资金投入比例低；规划落后于建设，规划中存在非科学因素；缺乏区域设施共建共享的有效机制。在此基础上提出解决问题的对策。

The security of PKI system itself is especially emphasized during the system design and implementation process, which is in accordance with the pervasive characteristic of PKI. Second, the concept of a Trusted Key Management Center is introduced for the first time. This technology greatly strengthens key management practices and allows for smooth transition from PKI to Key Management Infrastructure. Third, certificate status mechanisms are investigated in depth, and a certificate revocation performance simulation system is devised. All these work will provide guides to practice and employment of PKI applications. Based on time constraints, a new taxonomy for authenticated dictionaries is proposed. Fourth, formal analysis ofOCSP protocol is carried out; then an efficient and scalable OCSP system is developed. Fifth, the special requirements caused by the working environments of Wireless PKI are analyzed. Based on communicative hashing and dynamic Merkle hash tree, an efficient certificate status validation method suitable for WPKI is presented. Sixth, one important kind of fair exchange protocols is studied, and a new CEMBS based on RSA cryptosystem is proposed. Afterwards, a novel fair exchange protocol totally based on RSA signature scheme is devised.

在系统设计和实现的过程中，考虑到PKI作为普适性安全基础平台的特点，特别强调PKI系统自身的安全性；第二，首次在PKI系统的设计中提出了"可信密钥管理中心"的概念，这一独特设计大大地强化了密钥管理功能的实施，为PKI向密钥管理基础设施的平滑过渡提供了良好的技术准备；第三，对证书状态验证机制进行了深入研究，设计了证书状态模拟系统，以指导PKI系统和应用的部署和实施；在此基础上，基于时间约束首次给出了认证字典的一种新的分类方法；第四，对OCSP协议进行了形式化分析，设计和实现了一种高效、可扩展的OCSP系统；第五，分析了WPKI工作环境对设计安全基础平台提出的特殊要求，结合无线移动设备的具体特点，基于可交换杂凑函数和动态Merkle杂凑树设计出了一种适用于WPKI环境的高效证书状态查询机制；第六，对一类公平交换协议进行了深入的研究，从设计公平交换协议的密码基础结构出发，提出了一种新型的基于RSA密码体制的高效CEMBS；在此工作的基础上，设计了一种基于RSA密码体制的最优化公平交换协议。

The security of PKI system itself is especially emphasized during the system design and implementation process, which is in accordance with the pervasive characteristic of PKI. Second, the concept of a Trusted Key Management Center is introduced for the first time. This technology greatly strengthens key management practices and allows for smooth transition from PKI to Key Management Infrastructure . Third, certificate status mechanisms are investigated in depth, and a certificate revocation performance simulation system is devised. All these work will provide guides to practice and employment of PKI applications. Based on time constraints, a new taxonomy for authenticated dictionaries is proposed. Fourth, formal analysis of OCSP protocol is carried out; then an efficient and scalable OCSP system is developed. Fifth, the special requirements caused by the working environments of Wireless PKI are analyzed. Based on communicative hashing and dynamic Merkle hash tree, an efficient certificate status validation method suitable for WPKI is presented. Sixth, one important kind of fair exchange protocols is studied, and a new CEMBS based on RSA cryptosystem is proposed. Afterwards, a novel fair exchange protocol totally based on RSA signature scheme is devised.

在系统设计和实现的过程中，考虑到PKI作为普适性安全基础平台的特点，特别强调PKI系统自身的安全性；第二，首次在PKI系统的设计中提出了"可信密钥管理中心"的概念，这一独特设计大大地强化了密钥管理功能的实施，为PKI向密钥管理基础设施的平滑过渡提供了良好的技术准备；第三，对证书状态验证机制进行了深入研究，设计了证书状态模拟系统，以指导PKI系统和应用的部署和实施；在此基础上，基于时间约束首次给出了认证字典的一种新的分类方法；第四，对OCSP协议进行了形式化分析，设计和实现了一种高效、可扩展的OCSP系统；第五，分析了WPKI工作环境对设计安全基础平台提出的特殊要求，结合无线移动设备的具体特点，基于可交换杂凑函数和动态Merkle杂凑树设计出了一种适用于WPKI环境的高效证书状态查询机制；第六，对一类公平交换协议进行了深入的研究，从设计公平交换协议的密码基础结构出发，提出了一种新型的基于RSA密码体制的高效CEMBS；在此工作的基础上，设计了一种基于RSA密码体制的最优化公平交换协议。

The goal of a CSCW system is to enable users to cooperate conveniently no mater when and where While,currently,most CSCW users rely on existing network infrastructures Self organized Network is a multi hop temporary autonomous system of mobile nodes equipped with wireless transmitters and receivers without the aid of any current network infrastructure In such an environment,it may be necessary for one mobile node,in order to communicate another node,to need a chain of intermediate nodes to forward pac...

CSCW 系统目标是允许用户在任何地点，在任何时间可以方便地进行群体间的协同工作。目前大多数的CSCW 用户都需要依靠现有的网络基础设施。自组网是一组带有无线收发装置的移动节点组成的一个多跳的临时性的自治系统。在这种环境中，由于节点无线通信覆盖范围的有限性，需要借助其他中间节点进行分组转发到达信宿。它可以在没有可用的网络基础设施的情况下提供一种通信支撑环境，从而拓宽了CSCW 的应用环境。本文描述了自组网的概念和特点，并提出了自组网的体系结构。

The article discusses changes taken place since the initiation of reforms and opening in aspects of city administrative functions, population structure, consumming structure and urban economic structure and so on and discusses impacts they bear on the contents of provision of public facilities and amenities , and their pattern of distribution and target.

实行改革开放以来，城市发生了很多变化，这些变化正是城市规划需要更新观念，改进方法的基础。本文从城市政府职能、城市人口结构、居民消费结构以及城市经济结构等方面的变化，探讨对城市公共设施规划的影响和编制问题。

Firstly we test the stability and cointegration of data, then perform the test of Granger casuality, lastly according to the aboved results, acquire of the regression equation of industry structure 、 infrastructure and logistics cost.

顺序上首先对数据进行稳定性和协整性检验，然后进行格兰杰因果检验分析，最后针对协整性和格兰杰检验结果，对物流成本、三次产业结构和基础设施数据进行回归分析，得出产业结构、基础设施与物流成本的回归方程。

From dynamic and static dimension,shareable capability,service capability and flexible capability of IT infrastructure are put forth based on IT infrastructure's structure.

本文在界定IT基础设施结构基础上，从静态和动态两个维度，提出了IT基础设施的共享能力、服务能力和柔性能力。

At first, using the gravitation mode the article confirms the range of Xi'an district, then the article carries on the analysis of the distance optimizing, economic linking, perimeter urban industry basic and water resources protection, then propose " a pair of axis "and" a pair of level " mode, and establish the xi'an satellite city, they are Xianyang, Lintong, Changan, Yanliang, Gaoling, Huxian, Xingping , Liquan , Jingyang , Sanyuan , Qianxian. Then on the basis of analyzing the industry shift of Xi'an, he article confirm the function of every satellite city; At the same time point out the study and adjust of Xi'an satellite city should be strengthened, and strengthen the industrialization construction of the infrastructure, then propose to build one pair of rings structure of traffic facilities.

文章首先应用引力模式确定西安都市区范围，继尔经过优化距离分析、经济联系紧密度分析、周边城镇产业基础分析及水资源保护限制分析后，提出了&双轴线、双层次&发展布局模式，确立了西安包括咸阳、临潼、高陵、户县、兴平、礼泉、泾阳、三原、乾县、阎良、长安十一个卫星城；继而在分析西安市产业梯次转移的基础上，确定了各卫星城的职能；同时指出要加强西安卫星城基础设施发展的研究及调控，要加强基础设施产业化建设，提出建设交通设施的双环结构。

Table 2.2 Infrastructure in different transport modes Road - Public No inherent guidance Infrastructure provided - Private Artificial, shared way centrally at public expense and at nominal cost to users Rail -Heavy Inherent guidance Track and control centrally - Light Artificial, dedicated way provided and charged to - Metro operators at full cost or owned by operators Air Natural, shared way Infrastructure provided by third party at full cost Maritime -Coastal/short Natural, shared way Infrastructure provided by sea No inherent guidance third party and charged at full Deep sea cost Inland water Natural or man-made Infrastructure provided by shared way third party and charged at full No inherent guidance cost Pipelines Artificial, dedicated way Infrastructure usually Inherent guidance provided by user All modes (except pipelines, although a travelator or moving walkway' may be considered a pipeline) carry both freight and passengers.

表2.2 不同运输方式的基础结构公路公共私人没有固有的牵引人造的，共享的方式基础设施由中央以公共费用和以使用者名义上的成本来提供铁路重型轻型地铁固有的牵引人造的，独占的方式铁轨和控制设施以完全成本的形式提供和向运营者收取费用或者由运营者所独有航空自然的，共享的方式基础设施由第三方提供并以完全成本方式收取费用海运沿海／近洋远洋自然的，共享的方式没有固有的牵引基础设施由第三方提供并以完全成本方式收取费用内河水运自然或人工的，共享的方式，没有固有的牵引基础设施由第三方提供并以完全成本方式收取费用管道人工的，专属的方式固有的引导基础设施通常由用户提供所有的运输方式（除了管道，尽管自动扶梯也可以被看作是一种管道）既能载人也能载货。

Through detailed analysis of the concept and nature of the "megalopolis", this paper discusses the relationship and influence factors between change of the industrial and urban and township spatial structures of the Yangtze Delta Area and argues that: i the two highly modernized networks (infrastructure networks and the market and industrial organization networks) based on functional division of labor between individual cities possess crucial importance in facilitating change and upgrade of the industrial structure on one side and sustained optimization of the organizational pattern of the urban and township spatial structure on the other; ii in the light of the Yangtze Delta Area, influence factors in promoting positive corresponding states between change of the industrial structure and urban and township spatial structure are concerned with development level of the first place city, rational and orderly hierarchy of the urban and township system and, meanwhile, up-to-dateness of the city networks.

本文以长三角为研究地区，对产业结构演进与城镇空间结构的对应关系和影响要素进行了探讨。据此认为，基于城市功能定位和合理分工基础之上的高度现代化的两大网络（基础设施网络、市场体系和产业组织网络）是推进产业结构不断演进和升级的重要条件，也是推动城镇空间结构和组织模式持续优化的着力点和主要抓手；促进产业结构演进与城镇空间结构对应的影响要素主要包括：首位城市的发达程度、城市间合理和有序的层级关系、城市体系网络的现代化程度。

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。