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Laser's 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。
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First, the definition, significance, research emphases and status of NC machining verification technology are introduced in this paper. Then the platform—ACIS for the development of verification system, including its development interface, data structure, main functions, features and the application in the system is introduced. And, we indicate in brief the correlative knowledge of NC machining and then discuss the definition of the machining environment of NC machining verification system as well as the way that the module has been developed. Finally, we describe how to make Help Files and the structure of the Help Files in the system.
本文首先对数控加工动态仿真技术的定义、意义、研究重点、研究状况进行了介绍;并介绍了可用于开发数控仿真系统的实体造型平台—— ACIS ,包括 ACIS 的开发接口、数据结构、主要功能与特色以及在数控仿真系统开发中的应用;然后通过简要介绍数控加工的一些相关知识,引出了数控仿真系统加工环境的定义与该模块的实现方法;最后讲述了帮助文件的制作以及该系统帮助文件的结构。
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First, the definition, significance, research emphases and status of NC machining verification technology are introduced in this paper. Then the platform―ACIS for the development of verification system, including its development interface, data structure, main functions, features and the application in the system is introduced. And, we indicate in brief the correlative knowledge of NC machining and then discuss the definition of the machining environment of NC machining verification system as well as the way that the module has been developed. Finally, we describe how to make Help Files and the structure of the Help Files in the system.
摘要本文首先对数控加工动态仿真技术的定义、意义、研究重点、研究状况进行了介绍;并介绍了可用于开发数控仿真系统的实体造型平台――ACIS,包括ACIS的开发接口、数据结构、主要功能与特色以及在数控仿真系统开发中的应用;然后通过简要介绍数控加工的一些相关知识,引出了数控仿真系统加工环境的定义与该模块的实现方法;最后讲述了帮助文件的制作以及该系统帮助文件的结构。
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And on the works about comparative studies among Languages Groups and of about introducing Altaic Studies from all aspects.
在介绍中国阿尔泰学研究的时候,除了介绍有关突厥语族、蒙古语族、满通语族的主要研究著作外,重点介绍了语族间比较研究和全面论述阿尔泰学的一些著作。
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In this paper, principle and technique of volume holographic storage are presented such as volume grating formation, Bragg diffraction, and horizontal angle selectivity.
本论文介绍了体全息存储原理及技术,包括体光栅的形成和布拉格衍射、衍射效率、水平角度选择性,还介绍了相干光学信息处理系统、Vander Lugt 滤波器的形成过程,给出了多重匹配滤波器相关的运算过程,最后介绍了子波变换的定义以及光学子波变换。
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The topics are divided into three parts: the first part introduced the basic concepts of algorithms, mathematical algorithms and algorithms based on complexity analysis scheduling problem for the second part of the problem and plans to discuss a variety of existing algorithms, and describes the design of commonly used algorithms including sub-rule law, greedy method, dynamic programming, backtracking and branch and bound method, and describes the complexity of the calculation, as well as NP-complete problem the third part of the model on parallel computing and parallel algorithm design techniques.
全书分为3个部分:第一部分介绍算法的基本概念、算法的数学基础以及算法复杂度分析;第二部分针对排序问题和图的问题,讨论各种已有的算法,并介绍常用的算法设计方法包括分治法、贪心法、动态规划法、回溯法和分支限界法,并介绍了计算的复杂性以及NP完全问题;第三部分讲述并行计算模型和并行算法设计技术。
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In this thesis, I introduce the purpose and meaning of my study in this field and also introduce the definition, characteristic, class and use firstly.
本文首先介绍了该论文课题研究的目的和意义,以及数字水印技术的基本概念、特性、分类、用途等,接着介绍了主要的水印攻击方式以及相应的对策,然后介绍了小波变换的基本理论,包括连续小波变换、离散小波变换、多分辨分析、Mallat算法等。
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The main research theme of this dissertation is sensor placement optimization and temperature measurement system in thermal error compensation of machine tools.
第一章,阐述了本论文的研究背景及重要意义,详细介绍了国内外机床热误差补偿的研究概况,侧重介绍传感器优化布置方面的研究,同时也介绍了温度测试技术及温度传感器的发展应用概况,概述了本文的研究内容。
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Firstly, some basic concepts about ECC are introduced;then the scalar multiplication under affine coordinate is discussed, we make a research and analysis of the side channel attack of scalar multiplication used in portable device, give out a new scalar multiplication algorithm which has the advantage of efficiency over other protected algorithm; and an improvement of the standard scalar multiplication algorithm proposed by IEEE1363 is made with the efficiency increasing by about 10%; at last, we deal with the using of complex multiplication in scalar multiplication algorithm, we generalize the methods and deduce a complete computing procedure, with proposing a new method which used several different fast endomorphism ,we give out an approach to boost the scalar multiplication with fast endomorphism.
本文首先介绍了椭圆曲线密码的有关基本概念;其次介绍了椭圆曲线上点的标量乘法在仿射坐标下的计算,对一般便携设备上的椭圆曲线点的标量乘法的边信道攻击做了研究与分析,给出了一种在效率上优于其它可抵抗边信道攻击的标量乘法的新算法,并对IEEE P1363 标准给出的标量乘法做了改进,使得标量乘法的运算效率提高了近10%;最后介绍了利用复乘计算标量乘法的方法,对已有的方法进行总结归纳,得出完整的计算过程,并针对两类超奇异椭圆曲线给出了一种利用多个可快速计算的复乘的标量乘法,得出一类普遍的结果,并给出了进一步用复乘加快标量乘法的思路。
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After discoursing on it and introducing the position of the China privately fund and the position of international privately fund, I will discuss the significance of the development of China privately fund. Then I will discuss the operation and the controlment of risk of the privately fund, finally I will introduce the international supervisement of the privately fund and discuss the supervisement of the China privately fund.
第一部分主要论述私募基金的一般状况,介绍了我国私募基金的现状以及私募基金在海外的状况;第二部分主要论述我国发展私募基金的意义,探讨我国私募基金发生的原因,并分析私募基金会对我国有什么好处,到底会产生怎么样的不良影响;第三部分主要论述私募基金的运作方式和风险控制,介绍了美国私募基金的运作方式,结合我国的实际情况,探讨适合中国国情的运作方式,并提出风险控制的方法;第四部分主要论述私募基金的监管,介绍了国际上对私募基金的监管方式、内容,并结合中国私募基金存在的问题,构想适合中国国情的监管方式。
- 推荐网络例句
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。