工作分析

We made some improvements in the system architecture and packet capture module and analysis method of the IDS and got satisfactory results. Based on protocol distributary, the system balances the load, making large numbers of network packets switch to different analysis module according to their protocols. The architecture solves the bottleneck of centralized detection system in which all the packets are sent to analysis module to process and enhances the detection efficiency.

在系统的体系结构上，我们利用协议分流技术进行负载均衡，使得大量的网络数据包按照不同的协议被分流到不同的分析处理模块，解决了集中式检测系统存在的瓶颈问题，即所有的数据包都被送到一个集中的分析模块进行分析、处理，既提高了检测的效率，同时也增强了系统的抗攻击能力，即使某一个分析模块无法正常工作，也不会影响到其他的分析模块。

The negatives in Dunhuang Bianwen are classified and analyzed in this thesis. The discussion is divided into three topics--monosyllabic negatives, polysyllabic negatives and double negation, and each part is classified according to specific criteria, and analyzed in terms of several respects.

本论文主要针对敦煌变文中的否定词作分类与分析的工作，将否定词分为单纯否定词、复式否定词以及双重否定三个部分来讨论，每部分都先依特定标准作分类，再就各方面作分析的工作。

The harm of worms' outbreak becomes greater and greater. Such make worm detection and defense technology face an increasingly tough challenge. Attack Signature Automatically Generation technology is one of the key technologies, this paper focuses on the ASAG technology for research, its main jobs include: 1）Analyzed the research status of ASAG technology from the overall, described its design goals and evaluation criteria, and the current approaches' limitations is given. 2） After deeply researching and analyzing a various of ASAG systems, a basic framework for the network ASAG system is presented, and the detailed analysis of the main function of the components in the framework is also presented. 3）An attack capture model based on distributed honey-pots system is presented. This mode integrates the anomaly detection which based on the mode of dubiety score in the honey-pots, can do a second filter for the samples in honey-pots, and improve the purity of the samples captured. 4） A simple noise-resilience ASAG algorithm is presented, which used the behavioral characteristics of the worm outbreak to generate efficient signatures of samples in the suspicious dataset, which contains large amounts of noisy data, under the complex environment.

攻击特征自动提取技术是网络蠕虫防御技术的关键技术，本文围绕攻击特征自动提取技术开展研究工作，其主要工作包括： 1）对攻击特征自动提取技术的研究现状进行了综述，介绍其设计目标与评价标准，并指出了现有方法存在的局限性； 2）在深入研究与分析各种攻击特征提取系统的基础上，提出基于网络的攻击特征自动提取系统的基本框架，并详细分析框架中各部件的主要功能； 3）提出了基于分布式蜜罐系统的攻击样本捕获模型，该模型在分布式蜜罐系统的基础上，结合基于可疑度模型的异常检测，对蜜罐中的样本进行二次过滤，较好地提高了捕获样本的纯净度； 4）提出一种简单抗噪的攻击特征自动提取算法，该算法利用蠕虫爆发时的行为特征，在复杂环境下含有大量噪声数据的可疑样本训练集中提取有效的特征，降低对样本纯净度的依赖。

The main work and results are as follows:(1) According to the particular movement of high spot closed gripper mechanism, the full method of dynamic characteristics was presented and built. It contained relative motion analysis, absolute motion analysis, dynamics of rigid body's analysis and elastodynamics analysis.

本论文主要工作和取得的成效如下：(1)针对高点闭牙机构运动的特殊性，提出并建立了机构动力特性分析方法，包括相对运动分析、绝对运动分析、刚体动力学分析和弹性动力学分析。

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

The restriction of equivalent transformation analysis method is discussed and finally a proper method and the result of the analysis are offered.

在单端输入的差动放大电路工作原理教学中，对共模反馈电阻R e的作用，往往采用等效变换法进行分析，如果不注意正确使用分析条件会得出错误的结论，本文从理论和实践上指出了利用这种分析方法分析单端输入差动放大电路的局限性，最后给出了正确的分析方法及结论。

This paper in view of present crude oil units running situation and the existence prominent question, in cooer with progress of production has carried out the corrosion mechanism research, the anticorrosion measure and the corrosion actually tests and analysis, the security and reliability analysis and the life forecast research, with the research of out and inner our country and the production actuality ,which provides a practical and feasible base for guaranteeing the equipment in the long-term and steady safe operation.

本文针对目前国内稠油加工常减压装置的生产运行现状和存在的突出问题，结合国内外研究工作和生产实际开展了稠油加工装置故障树分析、腐蚀机理、防腐措施、腐蚀实验、安全可靠性分析和寿命预测等方面的研究工作，为提高我国石油炼化装置的安全可靠性提供了理论基础和新的方法。

This paper analyzed and summed up the flexible seal structure, seal working mechanism and application field, analyzed the key part with finite element analysis in snubbing service , as follows:Introduced on the composition and working principle of the on-off flexible seal system in snubbing service.

本文主要对井口防喷密封装置的柔性密封结构、密封工作机理及其控制方法进行分析和研究，对带压作业防喷装置重要零部件进行了静力学有限元分析，主要包括以下几个方面：阐述带压作业系统组成与工作原理。

This paper analyses fundamental of general thyristor single phase bridge half controlled rectifier and draws work wave of each part. to avoid out of control, the freewheel diode is added, the work wave is analyzed.

本文从常规的晶闸管单相桥式半控整流电路着手，分析其电路工作原理和各部分工作波形，为避免失控，在电路中添加续流二极管，并分析了相应的各部分波形。

The operating process of liquid apogee engine (N2O4/MMH) thrust chamber is studied. By applying the SIMPLE algorithm with staggered grid, the numerical model is established. The atomization mechanism and decomposition combustion of hypergolic rocket propellant are considered in the model.

研究了远地点发动机(N2O4/MMH)的推力室工作过程，考虑了自燃推进剂的雾化、蒸发以及化学反应流动过程，采用交错网格系统的SIMPLE算法，得到了不同边区冷却流量对推力室的内流场和燃烧效率的影响结果，数值计算的结果与理论分析相符合，为推力室工作过程的稳定性分析提供了重要参考。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。