查询词典 paper-cutter

In section 3,we summary our paper.And this paper introduces the optimal control problem for the assets evolution equation with diffusion term.

第三节，给出本文的总结，并介绍了带有扩散项的资产发展方程的最优控制问题。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

New ideas and methods in the paper:1 The formulas on perforated casing collapse strength were deducted, which offereda convenient method to analyze the relationship between casing collapse strength and perforation;2 The stress and displacement formulas on the system of casing, cement anddeformation under the non-uniform load were deducted, which offered the theoretical found for designing optimally casing string;3 The relationship between structure in-situ field of whole oil field and casing failurewere studied, which offered the scheme for the prediction of casing failure. The process of study in the paper:1 For simulating the relationship between the structure in-situ field and the casingfailure in the oil-deformation, the tests of the uniaxial tensile, compress, tnaxial compress and dilatability were made on the samples of the drill cores from deformation of casing failure position in Yuejing II oil field.

本文的主要创新： 1推导出了射孔套管抗挤强度的解析式，为分析射孔与套管强度的变化关系提供了简便的方法； 2推导出了非均匀地层载荷作用下套管、水泥环和地层组合体的应力和位移解析式，并非均匀作用下套管柱优化设计提供了理论依据； 3研究整个油田区块构造应力场与套管损坏关系，为预测套管损坏提供了可行方案；本文的研究过程如下： 1为模拟构造应力场与油层段套管损坏关系，做了大量的岩石单轴抗拉、单轴抗压、三轴试验以及岩石遇水膨胀试验，获得了研究区块岩石的弹性模量、泊松比、内聚力、内摩擦角以及岩石的线膨胀系数，这此数据为本文研究油层段套管损坏机理研究的理论分析和有限元法提供了实验数据。

Thirdly, for the hardware based on PCI bus this paper designed the application software which is used for speech monitor. For the the hardware based on PCI-Express bus this paper design the application software which is used for interferometer direction finder.

其次，针对基于PCI接口的侦收系统的应用场合，设计了应用于语音信号监听的应用软件，并对该软件的设计做出了详细的分析；针对基于PCI-Express接口的侦收系统的应用场合，设计了应用于信号后期测向处理的应用软件。

This paper introduces some fundamental principles of the Fused Deposition Modeling in Rapid Prototyping, and analyzes the factors influencing the prototype surface quality from two parts, which include the choice of prototyping direction and the prototyping parameter. Based on this, in response to these common quality problems in Fused Deposition Modeling prototyping, this paper puts forward some methods to improve quality.

介绍了快速成型技术中熔融沉积制造的基本原理，从成型方向的选择和成型参数两方面分析了影响原型表面质量的因素，并针对熔融沉积制造原型常见的表面质量问题，提出了改善质量的措施。

This paper analyses the cause of impact soccer robot motion discordance. Aim at characteristic of robot, this paper presents compensate arithmetic and implement scheme.

通过分析影响足球机器人运动协调差的原因，针对机器人运动的特点，提出了同步补偿算法及实施方案。

Basing on the traditional definition about trip-chain, the paper has defined a start point and end point standard in the commuters on-off duty trip-chain, and by utilizing the analysis method which based on trip-chain, the paper presents the discrepance about trip-chain type selection behavior as the commuter has different socity and economy background.

在传统出行链定义的基础上，界定了通勤者上、下班出行链开始和结束的标准，利用基于出行链的分析方法，比较了不同社会经济背景下通勤者对出行链类型选择的差异。

Starting with the analysis on discriminatory nature of transitional product-specific safeguard clause, in this chapter the paper sets forth its views that this clause has been violating the basic principles of WTO, worsening the trade environment of developing countries and undermining the fair and undicriminating principles of Safeguard Agreement. The paper then make a further analysis on the basic elements of the prerequisite for implementation of the clause and the legislativeactions of other WTO members in a more detailed way and summarizes the irrationalities and harmfulness of the clause.

从特殊保障措施作为"选择性"保障措施的实质入手，指出特殊保障措施的实施与WTO基本原则相悖，将发展中国家置于更加不利的竞争地位，并将破坏保障措施原有的公正性和合理性；然后在具体制度设计的层面上，从基本实施要件和各国特保法律实践的角度分析了特殊保障措施的不公正性和危害性。

In this paper, both quantitative method and logical discursion are applied. After analyzing the influence of tax-burden on banks' operating in an all-round way, based on the data(1996-2007)of seven commercial banks that have been listed. The paper makes an empirical study on the correlation between the tax-burden and the profitability of commercial banks.

本文采用理论与实证结合的方法，在对我国现行银行税负对银行经营影响的一般分析基础上，利用我国七家已上市商业银行1996-2007年的数据对银行税收负担与银行盈利能力的关系进行了实证检验。

The paper researches both the present situation and the circumstances of application of domestic competitive intelligence, and emphasizes the importance and necessity of competitive intelligence, according to which the paper finds out the existing problems and sums up the elements of restricting the development of domestic corporations' competitive intelligence as following: the surroundings of competition and condition, the corporations' inner elements and the disjoint elements between the theory research and the practice application of competitive intelligence.

本文从探讨我国竞争情报理论研究现状和国内企业竞争情报的应用状况两方面入手，强调了竞争情报的重要性和必要性，并根据这些现状，找出现存的问题，总结了我国企业竞争情报发展的制约因素：竞争环境与条件因素、企业自身因素和竞争情报理论研究与实际应用脱节等。

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。