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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。

U.S. defense intelligence, the CIA and U.S. military attache in Venezuela and other countries have been receiving secret order, the immediate use of "human intelligence" surveillance of these airports, these airports at the same time trying buy the "house staff" in order to "obtain the first time the Russian people Developments "in intelligence.

美国防情报局、中情局和美国驻委内瑞拉等国的武官处已接到密令，立即动用"人力情报"侦察这些机场，同时想方设法收买这些机场的"内部工作人员"，以便"第一时间获取俄罗斯人动向"情报。

Because the project fundamentally reduce property buyers in the decoration, furniture, electrical process time and energy consumption, through the integration of design, decoration, furniture, home electrical appliances multiple industries edge products and services for the first time in the house will be easy to.

因为该项目从根本上减轻了购房者在装修、购置家具、电器过程中所消耗的时间与精力，通过整合设计、装修、家具、家电等多个行业的优势产品与服务，使购房人在第一时间便得以轻松入住。

The move fundamentally reduce property buyers in the decoration and furniture, electrical process time and energy consumption, through the integration of design, decoration, furniture, home electrical appliances multiple industries edge products and services for the first time in the house will be easy to.

该举措从根本上减轻了购房者在装修和购置家具、电器过程中所消耗的时间与精力，通过整合设计、装修、家具、家电等多个行业的优势产品与服务，使购房人在第一时间便得以轻松入住。

The first time in Zou Shenglong life, also be exclusive violate a promise, also be for oneself target. When going back to the motherland at the beginning of 2003, go back to the motherland together to persuade a wife, zou Shenglong and wife placed the poineering time limit of 12 months.

邹胜龙人生中第一次、也是唯一一次违反诺言，也是为了自己的目标。2003年初回国时，为了说服妻子一同回国，邹胜龙与妻子定下了12个月的创业期限。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

Sina shares so that the speed of real-time information to reach its peak settlement of the view behind the information, up-to-date information in order to allow the first time in front of the user.

新浪股道使信息即时化的速度达到了顶峰，解决了信息浏览滞后的问题，让最新的信息以第一时间到达用户面前。

Ha ha ha ha ha Dat dad a dat da Dad a ooh [Verse 1] Little girl with the press and curl Age eight I got a Jheri curl Thirteen I got a relaxer I was a source of so much laughter At fifteen when it all broke off Eighteen and went all natural February two thousand and two I went and did What I had to do Because it was time to change my life To become the women that I am inside Ninety-seven dreadlock all gone I looked in the mirror For the first time and saw that HEY....

哈哈哈哈溢达爸爸的DAT爸爸一户外 [诗歌1] 小女孩与新闻界和卷曲 8岁我得到一个Jheri卷毛 13我得到的矫直我是这么多的笑声源在15时，所有中断 18，前往所有自然二月2002 我去了，没有我必须做因为这是一次改变我的生活妇女成为我里面 97个dreadlock荡然无存我望着镜子里第一次，看到日HEY 。。。。

Rush for the first time that we should apply to the Public Security Bureau, and you do not have the time, commissioned for other people, but you Daiqi the residence booklet, the original identity card and residence booklet of the client, the original identity card, your photo to For public security sub-bureau, the desirable 15 days.

第一次办证，是一定要到公安局办理的，你没有时间，可委托别人办理，但要带齐你的户口簿、身份证原件和委托人的户口簿、身份证原件、你的相片到公安分局办理，十五天可取。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。