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Lasers characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分,简要总结了状态方程研究的历史,激光作为冲击波驱动源的特点和KrF激光的优势,以及国内外的进展情况;第二章是本工作的理论基础,讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法,重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应,鉴于KrF激光短波长和长脉宽的特点,我们拟对双层飞片的特性展丌研究工作,为实测状态方程做好准备;第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计,进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析;第四章是实验平台描述部分,介绍了光束平滑化技术,靶的制作,条纹相机的原理和使用,系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

Combined with the KBE-Based design of Turbo Expansion Engine, the acquisition, classi- fication, deduction and application about the knowledge was introduced on the theory of general knowledge database.

结合基于KBE的透平膨胀机设计,以广义知识库概念为理论基础,阐述了设计中知识的获取、分类到推理、应用等一系列过程的工作,分析了建立的深层和浅层知识系统,在传统知识工程的基础上,提出了将广义知识库与大型CAD软件知识熔接工具相结合的设计框架。

By means of the original research work , Systematically analysing western country banking management pattern evolution course and the pattern history evolution is operated to the banking of our country , The course was analysed the proof to propose our country hanking trade already harracks through the branch and was all along confuseed the tendency that the barracks transforms already , Moreover propose product design and the organization pattern that the barracks was confuseed already to our country banking .

通过本文的研究工作,系统地分析了西方国家金融经营模式的演变历程,在对大量史实进行分析的基础上,抽象出金融混业经营发展所应具备的供需条件和理论支撑,归纳出混业经营的发展轨迹是一个由初级阶段向高级阶段、由浅层向深层渗透的渐进过程。

Compared with the ordinary Na2O-CaO-SiO2 glass, the relationship of the glass ceramic composition and the meltingtemperature with the corrosion degree of the various refractories is discussed in detail. The microstructure and characteristics of each kind of refractorys matrice and keacting layer are analysized and a great amount of optical microphotographs are obtained, which may provide reliable theory basis to manufacture the glass ceramic.

本文运用多种有效的材料测试手段,对比Na_2O-CaO-SiO_2普通玻璃深入研究了CAS系统微晶玻璃溶液对不同池壁耐火材料的侵蚀机理,探讨了CAS系统微晶玻璃组分、熔制温度和耐火材料受侵蚀程度之间的相互规律,同时详细分析、评价了每种耐火材料基体和界面反应层的显微结构及其变化特征,为CAS系统微晶玻璃生产厂家选择合适的耐火材料及熔化工艺制度提供了可靠的理论依据。

First, when making the analysis to Contemporary China\'s television words system, always based on the macroscopic perspective in this article, especially in globalization age, I will look into the system in the relationship among the dynamic structural relations of whole politics, the economy, the culture in global community, and will carry on the explanation by using the correlation theories such as the modernity, post-modernity, the modern nation-state, the industrial competition, the globalization, as well as many modern culture theory and so on. Next, this article I considered the special cultural status of TV culture in the entire big cultural structure, in the meantime, I also considered the affiliation and the general character with other cultural type contacting. Finally, what compositing the writing frame is a spreading process structure:"environment→disseminator→information product→receiver→environment".

在本文中,这种&结构分析&具备三层涵义:首先,在对当代中国的电视话语系统作分析时,始终都以宏观的视野作依托,尤其是从全球化进程中的政治、经济、文化等动态的结构关系中去加以观照,并运用相关理论(如现代性、后现代性、现代民族国家、产业竞争、全球化等)进行阐释;其次,既考虑到了电视文化在整个大文化结构中的特殊地位,又考虑到了它与其它文化类型的联系及共性;最后,组成本文写作框架的是下述传播过程:&环境→传者→信息产品→受者→环境&。

Abstract〕by analyzing the objective environment changes of the union catalogue databases, and taking the cas?union catalogue database as an example, this paper discusses utilizing the new developed cataloging theory and new technical measures to merge the cas?union catalogue database into customer's application scenes, and constructs the resource discovery and delivery supported union catalogue database in an open environment used as the 'middle switching layer'.

摘要〕分析联合目录数据库所面临的客观环境的变化,包括用户信息查找行为的变化、资源出版模式的变化、资源建设模式的变化,并以中国科学院联合目录数据库为例,探讨如何利用最新编目理论和技术手段,将中国科学院联合目录数据库纳入到用户使用情景中,构建一个在开放环境中,作为&中间转换层&支持信息资源发现和传递的联合目录数据库。

The result would be used in tobacco breeding.4 SRAP technology is used to study the genetic differences among different types of tobacco, including flue-cured tobacco, oriental tobacco, maryland tobacco, burley tobacco, and air/sun cured tobacco, five pairs of primer combinations which can amplify characteristic bands has been screened. Among the five combinations, two of them (SF25*SR2 and SF3*SR26) can distinguish air-cured tobacco including maryland tobacco and Burley tobacco from the other cultivated forms; SF20*SR14 can distinguish sun cured tobacco including oriental tobacco and sun-cured tobacco; SF16*SR14 can distinguish flue-cured tobacco and air-cured tobacco, and SF22*SR14 can distinguish DBJ599 with specisl aroma and the other flue-cured tobacco.5 8 varieties , which represent the different types of tobacco, are divided into 3 groups. I: G-28, II:DBJ599、MD40、By21, III: Basma、Sumsun、XNS、QCT. The cluster analysis result es consistant with experience evatuation.6 Anorthogonal design was used to optimize a ILP-PCR system with 5 factors (DNA, Mg2+, dNTP, primer and Taq polymerase) at 4 levels.The result showed the optimized ILP-PCR system for Nicotiana tabacum L. was: 2uL10×PCRbuffer, 20ng template DNA, Mg2+ 2.0mmol/L, dNTP 150umol/L, primer 0.3umol/L, Taq DNA polymerase 1 U in a total of 20uL reactionsolution.

研究结果可作为烤烟与香料烟类型间的杂种鉴定利用的实验与理论依据。4、利用SRAP标记技术,研究和分析了烤烟、晒烟、晾烟、白肋烟、香料烟等不同栽培类型间的基因型差异,初步筛选出了能够在分子水平上反映不同烟草类型差异的特征性标记带:晾烟MD40、Ky17、Burley21、TN90基因型共有的特征带有两对引物组合,分别为SF25*SR2和SF3*SR26;晒烟小牛舌、青梗、小花青和香料烟Sumsun、komotini Basma、Xanthi Basma共有的特征带引物组合为SF20*SR14;NC89、K326、G-28、大白筋和MD40、Ky17、Burley21、TN90共有的特征带引物组合为SF16*SR14,烤烟中大白筋599的特征带引物组合SF22*SR14.5、利用61对SRAP引物组合,研究了普通烟草不同类型间的亲缘关系,将普通烟草类型间8个不同供试材料划分为3类别。I:烤烟类型G-28II:白肋烟类型(MD40、By21、大白筋599III:香料烟类型(Basma、Sumsun、小牛舌、千层塔)。

At the beginning of the thesis, the structure of usually used radome is introduced and the parameters of electromagntic characters are described in Chapter Ⅰ; the different methods for analysis of the electromagnetic characters of radome are summarized in Chapter Ⅱ; the propagation of 3-D beam in free space is conducted in Chapter Ⅲ; then in Chapter Ⅳ, the 3-D Complex Ray Theory are analyzed and the characters of transmitted field of sum and difference beams through radome are studied, and the relative formulations of calculation are rekened; at last the electromagnetic characters of the ellipsoidal sandwich radome and the plane single-layered radome are discussed, and suggestions for optimization of electromagnetic properties of radome are given.

本文第一章介绍了常用雷达罩的结构和描述雷达罩电磁特性的参量,第二章概述了目前分析雷达罩电磁特性所采用的各种方法,第三章分析了三维波束在自由空间传输特性,第四章研究了三维复射线理论,并应用它分析了单脉冲和差波束穿过雷达罩透射场的特性,导出了有关计算公式,在第五章,通过大量的数值计算和实验研究,讨论了椭球形三层夹心状实用雷达罩和单层介质平板模拟雷达罩的电磁特性,并提供了雷达罩电气特性优化的建议。

Firstly, this paper has discussed the theory and application of Agent and Multi-agent system,and gives Formalisation of AA for RTAIS,This Agent Architecture comprises tow levels of agents, the RTAIS Agent,and a set of agentwithin it,and finally,gives an example of simulation system of Intelligent Campaign Decision Based on AA,shows that this model not only meets the time restriction of hard real-time system,,but also bings an higher intelligence to it if being used in real-time intelligent syt...

该文首先对Agent和多Agent系统的理论和应用进行了概述,提出一种用于实时人工智能系统的多Agent结构模型AA的形式化描述,这种Agent结构包含两层Agent,即RTAISAgent和AA内部的一组Agent体,并介绍基于该模型的舰艇协同攻击潜艇的仿真系统的实例,证明AA结构模型应用于实时智能系统,不仅能适应强实时系统的实时性要求,而且提供了更高的智能水平。

In order to describe in detail the structure of mesoscale atmosphere circulation and its evolution, symmetry theory are extensively used in the past fifty years. A large number of wind tunnel and water tank experiments are practiced to reshow the physical process that often appear in the atmosphere and, to some extent, successfully explain many atmsophere circulation characters in surface layer. But because of the planetary reflection and small Re number deformation, these physical experiments can' t represent real conditions of the atmosphere, they also can' t distinct viscous boundary layer separation and non-viscous dynamical separation as well as show the circulation response to surface diurnal heating.

为了详细描述复杂地形区域大气中尺度环流的结构和特征,过去50年来人们广泛采用相似理论,利用风洞和水槽实验再现大气中的物理过程,并在一定程度上成功地给出了大气近地层的一些环流特征,然而由于边界层反射和小Re数形变作用的影响,物理实验的结果并不能真实地再现大气中的实际状况,尤其是不能正确区别边界粘性分离流场和大气非粘性动力分离气流,环流场对地形下垫面日周期热强迫的响应过程也难以再现。

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推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力