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The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.

其主要研究内容包括：阐述课题研究的学术背景及其理论与实际意义，概括总结出流动层析成像技术的发展现状和存在的问题，指出电容层析成像技术的优点；讨论电容层析成像系统的组成及工作原理，进行详尽的理论分析，以变分原理为基础，将ECT的有限元边值问题转换为等价的变分问题，从而建立系统的有限元模型；在系统有限元模型的基础上，建立敏感场的数学模型，编制有限元的仿真软件，并从不同角度证明电容层析成像系统有限元模型的正确性；利用有限元模型，定性地分析电容传感器各结构参数对其性能的影响，并对传感器结构参数进行优化设计，使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明，它们之间的相对误差小于0。

According to the virtual work principle, its element stiffness matrix and equivalent node forces were formulated explicitly, and its compatibility and convergence were summarized briefly.

根据虚功原理，推导出了这种单元的单元刚度矩阵及等效结点荷载的显式，并对其协调性和收敛性加以概括说明。

The application of system transfer function in measuring night airglow, the temperature shift and the error estimation of the system are also briefly discussed.

另外对系统传输函数在实际气辉测量中的应用、系统的温度漂移以及误差估计也进行了简要讨论。

The origin, chemical structure, physiological function and sweetness response of 8 kinds of functional sweetening agents including L-sugar, erythritol, and dihydrochalcone etc. were introduced briefly in this paper and their utilization in food industry, in medicine and sanitation etc. were also illustrated.

简要介绍了L-糖、异麦芽酮糖、赤藓糖醇、二氢查尔酮、阿力甜、索马甜、三氯蔗糖、人工合成甜味剂8种功能性甜味剂来源、化学结构、生理功能、甜味特性及在食品、医药卫生等方面的重要应用。

In this paper, various ethanol fermentation techniques and the existing problems were introduced briefly.

简单介绍了各种乙醇发酵工艺及其存在的问题。

The thesis first cards the current thought of school management in primary and middle schools and from the cultural angle divides the various theories into three kinds:"the theory of scientific management" with the guidance of scientism, the theory of "behavioral science" with the guidance of humanism and the "theory of human relation management" with the guidance of ethicism. It briefly introduces their theoretic resources and main features respectively, analyses in detail their theoretic limitations and objectively points out their negative influence.

本文首先对当前中小学学校管理思想进行了梳理，从文化的角度将众多理论流派大体归并为三类：以科学主义为导向的"科学管理理论"，以人文主义为导向的"行为科学"理论，以伦理主义为导向的"人伦管理理论"，扼要介绍了各自的理论来源和主要特点；详细剖析了它们共同存在的理论局限性；客观地指出了其产生的消极影响。

This article is divided into the following major parts:The first part is an introduction of the general theory of economic evaluation, briefly introduce the methods of evaluation of social service functions and the research status of at home and abroad.

本文主要分为以下几大部分：第一部分：介绍项目经济评价的一般理论，对项目成果社会化服务评估方法做简要介绍，并对国内外研究现状进行简要分析。

We provide a substitution box, exponential permutation which has much measurable security, and give a enumerating result and a fast algorithm of calculating such permutation. An almost perfect nonlinear exponential permutation with high algebric degree is proposed. with some discussion on how to select the parameters of such permutation. The experimental result shows us a conjecture that there exists no such permutation over even dimensional space. As a way of generating substitution boxes, we briefly point out the cryptographic weakness of the exponential functions derived from such permutation. We also present two new cryptographic indexes, fixed point and cyclic structure, on which we investigate the performance of such permutation. Finally, we give a viewpoint about the application of correlation immune functions in designing substitution boxes.

提供了一种可度量安全强度的代换盒－幂置换；详细阐述了幂置换的实现和计数问题；给出了一种计算幂置换的快速算法；从几乎完善非线性幂置换角度讨论了幂置换参数的选取，并提出了一种高次几乎完善非线性置换；通过试验给出了关于偶数维空间上几乎完善非线性幂置换的一个猜想；简要给出了由幂置换派生出的幂函数的密码局限性；针对幂置换，提出了两个密码安全指标：不动点和循环结构；证明了幂置换在这两个指标下的密码性能；简要讨论了相关免疫函数与代换盒设计的关系。

This paper briefly reviews her life,exc...

本文简要介绍了她的生平、卓越的数学成就及突出的社会贡献。

In this paper the present situation of the development of heat pipe heat exchanger has been briefly introduced.

简要介绍了热管换热器的发展现状。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。