Using the semiclassical theory , we calculate the correction of the detuning to the absorption and dispersion , and we investigate the impact of the one - photon detuning under the exact two - photon resonance to large kerr nonlinearity and photon switching based eit 我们利用半经典理论计算失谐量对吸收和色散的修正，分析双光子共振条件下的单光子失谐量对基于eit的强kerr效应和光子开关行为的作用。
Abstract : based on the classical theory , the harmonic winding potential of the tooth harmonic brushless exciting generator have been calculated and analysed . the results tally with the data of no - load test very well . it was demonstrated the designing thread of harmonic winding is correct 文摘:从经典理论出发，对齿谐波无刷励磁发电机的谐波绕组电势进行了分析计算，其结果与空载实验得出的数据完全吻合.说明谐波绕组的设计思路是正确的
Chapter iii discusses the theoretical study on land - use of urban fringe . including three aspects : first , the land - use classical theory on urban fringe ; second , the land - use dynamic theory on urban fringe ; third , the land - use spatial layout theory on urban fringe 第三章讨论城市边缘区土地利用的理论概述,包括三方面内容:一是城市边缘区土地利用经典理论;二是城市边缘区土地利用动态理论;三是城市边缘区土地利用的空间布局理论。
Therefore , seeking the inner link mechanism and the development tendency between the industrial structure and the economy growth of our country to realize the long - term sustainable development is of great importance in both theoretical and practical significance 产业经济学的经典理论表明,一个国家产业结构的变动是与经济增长紧密地联系在一起的,产业结构的优化与调整是经济良性发展的内在体现,因此,研究经济增长不能不研究产业结构的演进。
For example , using the marx classical theory and some interrelated theories to analyze the source of risk ; elaborating " risk control " by means of quantitative and qualitative analysis . meanwhile the method of combining the theory and practice runs through the whole article , etc 如：利用马克思经典理论和西方相关理论来分析“风险来源” ；采用定量分析与定性分析相结合的方法来阐述“风险控制” ；同时全文基本上贯穿了理论与实际相结合的分析方法。
After analyzing and grasping the classical theory of os , the author comprehended the way of implementation linux kernel . then these bellowing experimentations were designed : the structure of os , the module programming , the interface of os , the device management , the process management and the file management 作者在学习掌握操作系统原理的经典理论基础之上，通过大量阅读linux内核代码来理解其实现的原理，进而设计了一组实验，包括操作系统构成实验、模块编程实验、操作系统接口实验、设备管理实验、进程管理实验和文件管理实验。
The cold - formed square hollow section columns are widely used in various structures such as building structure , trusses , space frames and offshore plates etc . this paper is mainly doing the research on load carrying capacity of the cold - formed square hollow section columns under axial load , the paper includes the following main contents : ( 1 ) an elastic buckling stress for cold - formed square hollow section is presented by finite element analysis , and is compared with the result given by classical elastic buckling theory ; ( 2 ) the elastic - plastic non - linear behavior of the cold - formed square hollow section columns analyzed by ansys is presented ; ( 3 ) by using material model , and geometry nonlinear analysis , the cold - formed effect to stub columns of cold - formed square hollow section is studied ; ( 4 ) by using an material model , the geometry nonlinear analysis , the influence of initial geometrical imperfection to stub columns of cold - formed square hollow section is also analyzed ; ( 5 ) the load carrying capacity of the cold - formed square hollow section columns , which are including the cold - formed effect and influence of initial geometrical imperfection is analyzed by non - linear finite element , and the theoretical analysis results are compared with the results of experimental study and the results calculated by specification gb50018 - 2002 冷弯方管作为轴心压杆广泛用于房屋结构、桁架、网架、塔架以及海洋平台等结构中，本文主要研究轴心受压冷弯方管的承载力性能，内容主要包括以下一些： ( 1 )对冷弯方管的弹性临界应力进行有限元分析，并与经典理论结果进行对比，以验证有限元程序的适应性； ( 2 )阐述冷弯方管采用有限元弹塑性非线性分析理论及应用ansys软件的非线性分析方法； ( 3 )采用弹塑性模型，考虑几何非线性及材料非线性，对不同宽厚比的轴心受压冷弯方管柱的冷弯效应进行有限元非线性分析研究； ( 4 )考虑冷弯效应对屈服应力的影响，对不同宽厚比的轴心受压冷弯方管短柱在不同初始变形下的承载力性能进行有限元非线性研究； ( 5 )考虑冷弯效应、几何初始变形，对不同长细比和不同宽厚比的轴心受压冷弯方管长柱的承载力性能进行有限元非线性研究，并与试验结果以及我国现行规范gb50018 ? 2002计算结果进行对比分析。
This paper is designed to find how capital structure of the sample companies affects their performance through empirical analysis . we also want to check the view that capital structure and firm performance are positively related in a definitely range . maybe it can reflect the degree of maturity and efficiency of our security market 而本研究正是致力于通过实证分析，发现样本公司的资本结构是否影响公司业绩以及怎样影响公司业绩，检验国外经典理论和大多数学者所支持的“在一定的变化范围内资本结构与公司业绩正相关”这一观点在中国的适用性如何，并从一个侧面反映中国证券市场的成熟程度和有效性。
Firstly , based on the review of classical theories we analyzed the necessity of government agricultural input and compared the government agricultural input of developed countries , such as u . s . a . , european union , japan , etc . secondly , we analyzed the scale and inside structure of government agricultural input in hebei province 本文首先在对政府投入和农业发展方面的经典理论进行回顾的基础上，分析了政府对农业投入的必要性，并对美国、欧盟、日本等发达国家政府农业投入政策进行了比较研究。其次，对河北省政府农业投入的规模和内部结构进行了分析，结果证明改革以来河北省的政府农业投入存在着规模较小、结构不尽合理等问题。
At the very beginning of the paper , the author summarizes the relevant literature , including the definition and function of reward , the classic theories about salary , reward system theory , the characteristics of research fellows management and the reference for reward management of research fellows in domestic and foreign enterprises ; then the author researches the design of reward system , dividing it into material reward design and spirit reward design . and then the author respectively discusses the problems of salary structure , technology grade salary , construction of enterprise culture and professional career program 本文首先对相关文献进行了综述，其中包括报酬的定义和功能、有关工资的经典理论、报酬体系研究综述、研发人员的管理特点以及国内外企业研发人员报酬管理借鉴等；然后本文对研发人员报酬体系设计进行了研究，将报酬体系设计分为物质报酬体系设计和精神报酬体系设计两部分，分别对工资结构、技术等级工资、企业文化建设和职业生涯规划进行了讨论。
