Bfs sensitively probes inter - electron correlation , relativistic and quantum electrodynamics corrections , so it can be used to test the basic many - body atomic theory or interpret spectra from space . the main contents of this dissertation are as follows : 1 the history and development of beam - foil spectroscopy are reviewed , and the characteristics of bfs are also described . the main applications in the spectroscopic studies and lifetime measurement of highly ionized ions are summarized 本文对高离化态cu和ge离子的光谱进行实验研究,得到了一些新的实验结果,论文的主要内容如下: 1回顾了束箔光谱法的发展历史,介绍了束箔光谱法的优点;总结了束箔光谱法在高离化态原子能级研究,高离化态原子能级寿命测量等方面的主要用途。
The nonlinear magneto - elastic basic equations of thin current - carrying strip - plate are built , based on the kinetic equations , the geometric equations , the physical equations and the electrodynamics equations of thin current - carrying plate , the normal cauchy form nonlinear differential equations , which includes ten basic unknown functions in all , are obtained by means of variable replacement method 摘要在所建立的载流条形薄板的非线性磁弹性基本方程运动方程、几何方程、物理方程和电动力学方程的基础上,通过变量代换,整理成含有10个基本未知函数的标准柯西型方程。
We analyzed the character of course and the present situation of instruction of electrodynamics and explored the new pattern of instruction of electrodynamics in this paper . then , we introduced the manufacture process of multimedia cours eware of electrodynamics course and all technical questions concerned in detail in the paper . besides these , we also introduced the effect of multimedia courseware of electrodynamics course on promoting instruction reformation and improving the quality of instruction of electrodynamics course 本文分析了《电动力学》课程的课程特征和教学现状,对其新的教学模式进行了有效的探索,并在文中就《电动力学》课程多媒体课件的研制过程以及其中所涉及的技术问题作了详细的说明,阐明了《电动力学》课程多媒体课件在推动教学改革,提高《电动力学》课程教学质量方面的积极作用。
In this thesis we discuss these three aspects in detail and our main research work is outlined as follows : in section 2 we first give a definition of entanglement and illustrate some distinctive qualities of entangled states , then explain how to describe entanglement of multi - particle quantum state . in section 3 we show many existing different schemes for preparation of entangled states by spontaneous parametric down conversation , cavity quantum electrodynamics and iron traps , moreover we present new schemes to prepare multi - atom entangled states as well as multi - cavity entangled states 在第二章中我们将给出纠缠态的定义和度量,研究纠缠态的一些特性,第三章中我们将系统介绍目前理论上利用自发参量下转换,通过腔量子电动力学和离子阱制备纠缠态的各种方案,以及在实验上的进展,并在论文中重点提出了利用原子和腔场相互作用来制备多原子纠缠态和多腔场纠缠态的方案。
The united states - - which had been born in a revolution against colonialism - - began advancing a different type of globalization , one based on openness and liberty . the world of science , which knows no borders , was reshaped by the theories of albert einstein , who in 1905 published " on the electrodynamics of moving bodies " containing the special theory of relativity 科学是没有国界的,艾伯特?爱因斯坦在1905年发表的《论运动物体的电动力学》 ,阐述了狭义相对论,科学的世界由此重获新生。德国科学家普朗克提出了量子力学理论,为人们认识物质和能量带来了一场新的革命。
The dissertation firstly discusses the reflectance of euv and soft x - ray in " multilayer system based on classical electrodynamics and optical characteristics of materials . the nns surface roughness in different spatial frequency range is carefully studied since scattering can seriously reduce the reflectance in euv and soft x - ray wavelength region . we discuss representative model of residual stress in 首先从材料在极紫外、软x射线波段的光学特性出发,讨论了极紫外、软x射线在理想和非理想多层膜系中的反射特性;研究了影响极紫外、软x射线多层膜反射率的表面粗糙度的空间频率范围;重点探讨了多层膜残余应力的典型模型、应力形成机制以及薄膜的形成过程。
According to magnetic medium following the theories , such as ferromagnetics , electromagnetic field , electrodynamics and so on , and linking the characteristics of driving of giant magnetostrictive materials , a control model and driving approach , which one to one correspondence with magnetostriction , are founded . the theory analysis and experimental study demonstrate that the control accuracy of giant magnetostrictive materials can be effectively improved , if using this control model and control approach of giant magnetostriction materials on account of flux density 通过理论分析和实验研究表明:这种基于磁感应强度的超磁致伸缩材料的控制模型和控制方法,可有效地提高超磁致伸缩材料的控制精度;研制了具有驱动磁场和微位移感知功能的磁场与位移感知型超磁致伸微位移执行器,并提出了适用于此种执行器的设计理论和方法。
In 6 . 635 , topics covered include : special relativity , electrodynamics of moving media , waves in dispersive media , microstrip integrated circuits , quantum optics , remote sensing , radiative transfer theory , scattering by rough surfaces , effective permittivities , random media , green ' s functions for planarly layered media , integral equations in electromagnetics , method of moments , time domain method of moments , em waves in periodic structures : photonic crystals and negative refraction 本课程所覆盖的论题包括:狭义相对论、运动媒质的电动力学、色散媒质中的波、微带集成电路、量子光学、遥感、辐射传输理论、粗糙表面上的散射、有效介电系数、随机媒质、平面层状媒质的格林函数、电磁学中的积分方程、矩量法、时域矩量法、周期结构中的电磁波:光子晶体和负折射率。
The " allowed " electric dipole ( el ) transitions will encounter strong competition from " forbidden " transitions , i . e . magnetic dipole ( ml ) , electric quadruple ( e2 ) and other higher order transitions , the transitions rates for the forbidden decay scale with higher powers of z than those of el transitions , the effects of quantum electrodynamics ( qed ) also scale with higher power of z . accelerator - based beam - foil spectroscopy ( bfs ) is an important method for spectroscopic studies of highly ionized atoms 在高离化态原子中,磁相互作用明显增强, “允许的”电偶极( e1 )跃迁将遭到来自磁偶极( m1 ) 、电四极矩( e2 )和其它高次的“禁戒”跃迁的强烈竞争,禁戒跃迁几率随核电荷数z增加而迅速增加,此外量子电动力学效应也随着z增加而增强。