技术

In this paper, we introduce mobile agent technology and protocol analysis technology inIDS, and bring out a Distributed IDS Based on Mobile Agent and Protocol Analysis, whichcombines the Jpcap plug-in and mobile agent platform Aglet.

本文研究分析了移动代理技术以及协议分析技术，并将两种技术引入到入侵检测领域方面，提出了基于移动代理和协议分析的分布式入侵检测系统。

Home-school links to be pioneering a new mobile communications technologies, Internet technologies, WAP technology and the introduction of modern communications terminals campus, in the family and in a school built an air bridge to provide parents with a convenient mode of the new communication platform, with a fast, convenient features, the uninhibited exchange up and speak their minds. very popular among parents and teachers.

家校通开创性地将新兴的移动通信技术、互联网技术、WAP技术和现代通讯终端引入校园，在家庭和学校间架起一座空中桥梁，为家长提供方便快捷的新沟通平台，有着快捷、方便的特点，交流起来无拘无束，畅所欲言，深受家长和教师的欢迎。

This engine drew engine of OHV strong, torque mixes motivation greatly OHC the advantage such as province oil, Jing Yin, low vibration, in technical respect far on these two kinds of type, especially forefathers the crankshaft shift technology of one pace (watertight aircase of way of Off Set Crank), double energy of life (rocker of valve of Two Ways Air Jacket), roller (the 6 old techniques such as Roller Locker Arm) have epoch-making sense more.

该发动机吸收了OHV动力强、扭矩大和OHC省油、静音、低振动等优点，在技术方面又远在这两种机型之上，非凡是先人一步的曲轴移位技术、双气道空气箱、滚子气门摇臂等六大技术更具有划时代的意义。

But, in the natural and artificial signal, a lot of signal phases don\'tvary linearly with time, for example, we usually use chirp signal in the radar technology,frequency step signal, linear modulation component of the ground echo in the SARtechnology, linear modulation component of the moving target echo, linear modulationcomponent while the airborn radar detecting the moving target, etc.

在自然界和人工信号中，许多信号的相位变化并不是随时间一次方变化，如雷达技术中常用的线性调频信号，频率步进信号，另外，SAR 技术中，地面回波所含有的线性调频分量，ISAR技术中，运动目标的回波所含有的线性调频分量，机载雷达探测运动目标时的线性调频分量，等等；傅里叶变换对此类信号分析所得的结果是信号在不同频率点上的能量分布，即信号在基函数上的投影。

Along with the fast development of the electric computer technipue and the advancement of the modern control system,the combitnaion airmanship developed very fast since the 1970s.

随着电子计算机技术特别是微机技术的迅猛发展和现代控制系统理论的进步，从70年代开始组合导航技术开始迅猛发展起来。

Showcasing these cornerstones of the AMT/AME craft and profession will help raise awareness of the training and skill needed for today's AMT/AME to carry the great responsibility of providing safe, airworthy aircraft.

技术人员/工程师在技术水平和专业性上的基础展示能提高现今技术人员/工程师对培训和技能要求的意识，肩负更伟大的使命，提供更为安全、性能更好的飞机。

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上，利用传统植化分离手段和现代分离技术，包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱，制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物，其中，2个新化合物和2个己知化合物，并进一步通过现代分析技术IR，ESI-MS，~1H-NMR，~(13C-NMR，HMBC，HMQC，~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃鸡纳糖基-2，7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷，金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2个已知化合物结构分别是：金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷，金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

Firstly, the thesis introduced the development of VOD, the background and meaning of the program, then the author introduced the associated technology, mainly including the feature of multimedia, video compression technology and the protocols SCTP and RTP. Considering the ambulant of host , fluctuation of bandwidth,high error rate data in wireless networks ,the author proposed some QoS strategy in the wireless networks such as RTP/SCTP protocol stack , connection control of the server, two buffers in the client end point.,TFC congestion control algorithms ,etc. Based these strategies, the team members gives the software and hardware solution of the wireless video-on-demand system and gives the main modules design of the software system. The system adopted the C/S structure including two parts: server and client ,using the Mpeg-2 which is apporiate for networks as the supported format. The thesis emphatically researches on the video-serving module of the server and the sink module, player module of client.

本文首先介绍了视频点播系统的发展现状、课题的研究背景和意义；接着对课题的相关技术进行概述主要包括了多媒体特点，压缩技术，传输协议SCTP以及RTP；针对无线环境的节点移动性，带宽波动性，数据错误率高等三大特点，作者研究设计了无线环境下的QoS策略：RTP/SCTP协议栈，服务器准入控制机制，客户端双缓冲区，TFRC拥塞控制机制等；在这些策略的基础上设计了系统的软硬件解决方案，并对软件体系结构的主要模块进行了设计，整个视频点播系统采用C/S结构，由服务器，客户端2个部分组成，使用适合网络传输的流媒体格式Mpeg-2作为系统支持的格式，文中重点研究了服务器的视频服务模块以及客户端的接收模块和播放器模块，并利用线程池技术对系统进行实现。

In 2007, LP Amina established an office in Beijing to bring a wide range of international experience , know-how, products and solutions to support the transformation of China 's Power Industry.

阿米那公司于 2007 年在北京成立，并力图通过其先进的技术理念、产品、技术来为中国电力工业的改革和发展提供强有力的技术支持。

In 2007, LP Amina established an office in Beijing to bring a wide range of international experience, know-how, products and solutions to support the transformation of China's Power Industry.

阿米那公司于2007年在北京成立分公司，并力图通过其先进的技术理念、产品、技术来为中国电力工业的改革和发展提供强有力的技术支持。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷