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The campus network is an important part of the construction of university modernization and its security issues is also intimidatory by various problems. This article is for the campus network security features of the discussion based on a three layer switch embedded virus defense and information monitoring system, which researches the technical problems based on the embedded virus defense and information monitoring system, and provide the solutions and development based on the existing technologies.

高校校园网络是高校现代化建设中重要的组成部分，同样，其安全问题也受到各个方面的威胁，本文结合高校网络建设过程中校园网络的安全特点，对于基于三层交换机的校园网络防御体系进行了探讨，研究了基于三层交换机嵌入式病毒防御与信息监控系统要解决的技术问题，并依据现有的技术提出了解决方案及发展的趋势。

Based on the classified system and ELM, this paper adds anticipation and irrationalness into Alife's learning model, and proposes an experience weighted and limited memory evolution model. In addition, we analysis the public problem model based on LMEM, observed the difference whether the Alifes could anticipate based on swarm platform.

在分类器系统和ELM模型的基础上，将预期和有限理性引入至人工生命学习演化模型当中，提出一种有限记忆演化模型LMEM，并在swarm平台上仿真公共问题模型，观察预期和有限理性对参与人策略选择的影响。

Taking the development trend of modern software and the traditional development technique based on OOP as the background,this paper researched authentication and authorization system based on JASS,analyzed advantage and disadvantage of traditional method,designed authentication and authorization system based on AOP and constructed the system prototype.

文章首先以现代软件的发展趋势以及传统基于OOP的开发技术为背景研究了JASS认证和授权系统，并分析了传统方法的优缺点，设计了基于AOP的认证授权系统，并构造了系统原型，该系统具有良好的可重用性和可维护性。

Last month, a UK insurance company Lucida announced the first longevity swap transaction based on the LifeMetrics index, agreeing to pay JPMorgan an income stream based on current longevity expectations in return for JPMorgan's promise to pay an income stream based on how long people actually live for.

上月，英国保险公司Lucida宣布了首笔基于LifeMetrics指数的寿命掉期交易，同意根据目前的寿命预期向JP摩根支付收入流，以换取JP摩根的承诺：根据人们的实际寿命支付收入流。

Also, it adapts to the prevailing trend of web service, which is drawing map by SVG.The techniques and theories involved in navigating map system based on smart phone are not yet mature, but because of the particular advantage when exploiting mobile information service and because of the commercial chance and huge market, the future of navigating map system based on smart phone is luciferous. So, I must to say it is very important to do some research work to the navigating map system based on smart phone.

由于面向智能手机的导航地图系统所涉及的技术和理论还不够成熟和完善，而面向智能手机的导航地图系统在开发移动信息服务方面有着自身独特的优势，并在人们生活中有着潜在的巨大市场和商机，因此在技术和理论的不断发展和完善中，面向智能手机的导航地图系统有着广泛的应用前景，对其研究有着极其重要的作用。

The result showed that the photoconductive material of binary blended composite was not found to be used in laser beam printers. The expert group, organized by Science Committee of Zhejiang Province, considered that the achievement was based on our own technology, and was the achievement with new ideas and high technology which reached the international level. 2. In order to broaden the spectrum response range for photoconductors, we blended TiOPc with monoazo pigment (AZO-1), double azo pigments (AZO-2, AZO-3 and AZO-4) based on benzidine as bridge group, double azo pigments (AZO-5, AZO-6, and AZO-7) based on 2, 7-diamino-fluorenone as bridge group respectively.

首次采用这种共混复合物作为光生载流子材料，在自制的环式浸涂装置中制备激光打印光电导鼓，国家法定测试单位-机械工业部天津复印技术研究所的测试其光敏性：E〓=1.2～1.3μJ／cm〓，法定检索单位上海情报所的手工、光盘和计算机国际联机检索结果为：二元共混复合光电导材料应用于激光打印机未见报导，浙江省科委组织的专家鉴定小组认为：此项成果立足于自己的技术，是一项具有创新性的高技术成果，达到了国际先进水平。

The damage represents complex mechanism. In this research based on T300/HT3 laminate structure, fatigue life is predicted phenomenologically, dealing mainly with in-plane stresses without accounting for out-of-plane failures such as craze. Fatigue modulus, based on damage mechanics, is used as a physical parameter which helps to describe the basic fatigue behaviors of unidirectional laminates and obtain expressions for cumulative damages defined by strains and stress. Based on some typical fatigue test data for unidirectional composite laminates, residual modulus sequence is found out.

本文以T300/HT3复合材料层压结构为研究对象，从唯象的观点出发，以损伤力学为基础构造损伤函数，考虑了剩余刚度和应变比率对复合材料的疲劳性能的影响，以这些变化着的机械性能作为损伤变量，建立了复合材料的疲劳损伤模型，基于层压板拉—拉疲劳试验数据，拟合出损伤模型中的参数，从而得到层压板拉—拉疲劳损伤变化规律，并建立损伤变量与内部损伤及疲劳寿命的联系，从而预测常幅应力作用下疲劳寿命。

The unfeasibility of discrete event driven simulation for high-speed network is discussed; two simulation algorithm based on time driven simulation are given, one of which is as precise as that based on discrete event simulation, but is faster, and the other gets less precision, but is much faster than the former. Comparing with the algorithm based on time driven fluid simulation, both of the proposed algorithms support the succeeding simulation for high-level protocol.

其中一种算法在精度上与离散事件驱动仿真算法一致，但仿真速度明显加快，另一种算法存在一定的仿真误差，但仿真速度要高得多；与时间驱动的流体仿真相比，这两种方法都是针对离散系统的仿真，能提供对上层协议仿真的支持。

Based on the analysis of the Jahn-Teller effect,vibronic interaction and the resolution of group representations, the possiblegcometrical configurations of 〓 have been derived for the first time, the results arein good agreement with the calculation esults.Firstly, the reasonable dissociative limits for the diatomic molecules of ZrCo,ZrH, CoH, UH,〓 and AlNi have been derived based on the Atomic and MolecularReactive Statics and the resolution of group representations. The groundelectronic states, which are 〓,〓,〓 and 〓 respectively for thesemolecules, have also been optimized based on the RECP method.

本文根据相对论有效原子实势和密度泛函理论方法(B3LYP／SDD与B3LYP／6-311G〓)，用Gaussian-98W程序研究了ZrCo、ZrH、CoH、UH、〓、AlNi、〓、HZrCo和〓分子的分子结构、分析势能函数、微观力学性质和光谱性质；首次建立了计算固体金属氢化物体系宏观性质理论模型，并应用于ZrCo、Zr和Co的氢化反应体系研究，理论计算与实验结果基本一致；基于Monte-Carlo准经典轨线方法，首次研究了H与ZrCo和Co与HZr的分子反应动力学。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

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。