验证理论

Comprehensively experimental investigation proves its correctness in theory and reliability of the results obtained.

详尽的实验研究验证了其理论上的正确性和测量结果的可靠性。

This project was established based on the first cooperative development of optical in situ real time detecting technique probing the atomic scale layer-by-layer epitaxy growth of oxide film. Over the last three years, we have given full play to the advantages and characteristics of both sides and have finished the assumptions and plans of this subject satisfactorily. 1. In Institute of Physics, we set up advanced oblique-incidence reflectivity difference equipment and wrote one data acquisition procedure that made the simultaneous detection of optical signal and RHEED signal into reality. 2. The first observation of sustained oscillations over hundreds of monolayers in both real and imaginary signals during the epitaxy growth of SrNb0.1Ti0.9O3 on SrTiO3 substrate in LMBE testifies that oblique-incidence is an excellent method to detect and monitor film epitaxy growth real time. 3. For the first time, we verify that oblique-incidence reflectivity difference method can be used to monitor the layer-by-layer growth mode during continuous growth through the correspondence between optical signals to atomic or molecular step edge density on the growth surface. 4. Phenomenological analysis shows that optical signals comprise three parts, the first is proportional to the average thickness of the film and depends on the bulk phase dielectric response; the second is proportional to the coverage of terraces and depends on the dielectric response of atoms or unit cells in the terrace; the third is proportional to the coverage of step edges and depends on the effective dielectric response of atoms or unit cells at step edges. This makes oblique-incident reflectivity difference technique a quantitative macroscopic method to monitor film growth.

中文摘要：本课题是在合作首次发展了氧化物薄膜原子尺度层状外延生长光学原位实时探测方法的基础上立项的，三年来，我们充分发挥双方的优势和特点，圆满完成了课题的设想和计划。1、在物理所建立了一套先进的光反射差法装置，编写了计算机系统的数据采集程序，实现了两路光学信号和RHEED数据的同步采集和显示。2、用激光分子束外延在SrTiO3基底上生长SrNb0.1Ti0.9O3薄膜，首次观测到连续外延几百个原胞层，周期振荡的光反射差实部和虚部信号，证明了光反射差法是一种能原位实时探测与监控薄膜层状外延生长的好方法。3、首次验证了通过对生长表面原子或分子台阶密度的响应，光反射差法可用于原位实时监测在连续生长条件下薄膜的层式生长模式。4、通过唯象理论的研究，证明光反射差信号由三项组成，第一项只与薄膜的平均厚度和宏观光学电介质常数有关；第二项与分子台阶面覆盖度和台阶面上分子层的光学电介质常数有关；第三项与台阶边缘的覆盖度成正比，并和在台阶边缘的分子的有效光学介电常数有关。

This further demonstrates the validity of the pigging and throttling theory.

进一步验证了清管节流理论的正确性。

The results of numerical calculation given in this paper shows that the theore tical conclusions are correct.

通过算例验证，表明本文的理论预测是正确的。

Computer-simulation results related to the TNN model substantiate that the timing neural network could handle well the inverse-interpolation problems of one-to-one and multiple-to-one mappings. Keywords: neural networks, weights direct determination, inverse problems, timing neural network

基于前面提出的网络模型，本文进一步提出一种增加时序控制条件的神经网络，即时序神经网络模型，并给出理论推导和进行仿真验证，结果表明该时序神经网络能够成功解决一一映射及非一一映射反插值问题。

Based on the theoretical and testing reseaches on the concrete anticrack property of the Qi-Nen-Bridage box beam web under the partical partical of the prestressing large tonage anchorage, this paper points out that the concrete crack resistance of the web does not meet the code.

本文对齐嫩桥连续预应力混凝土箱梁腹板在大吨位锚头作用下的混凝土局部承压抗裂性的设计进行试验研究、验证工作，指出了腹板在锚下混凝土局压抗裂性能与理论分析的一致性，证明了原设计的抗裂度不能满足规范要求，为保证工程的可靠性提供了修改设计的依据

This method is suitable for the new topology, and it is proven by simulation and experiments.

第四章对移相SVPWM方法进行了理论分析及仿真、实验验证。

An analytical method is proposed for calculating free torsion constant of complicated thinwalled cross section from free torsion theory.

通过自由扭转理论推导出复杂薄壁箱梁断面的自由扭转惯性矩的计算方法；采用实际复杂薄壁箱梁断面进行了数值验证，并和使用有限元方法计算的结果进行了比较。结果表明，这是一种简单实用且精度较高的计算方法

The research works are listed as followings: 1. The computing method developed with the Matlab software has been proposed to solve transcendental equation containing elliptical integral. With this method the dimensionless contact parameter, contact stress and deformation in different ceramic materials have been computed for the first time, and its the efficiency and reliability has been proved. 2. The internal speed and motions of ball bearings as well as relevant quasi-statics formulae are conducted.

本文以轴承拟静力学分析为理论基础，围绕着轴承的数字化设计和高速陶瓷球轴承的结构参数进行了相关研究，主要内容如下：提出基于软件Matlab为平台的计算方法，首次得到了不同陶瓷材料的接触应力和变形等以前不易计算的数据，验证了这种方法具有简便可靠、适合于轴承计算、易于普及等优点。

Transmission and transformation were analyzed in theory firstly and then testified in experiment.

先对高斯光束的特性及其传输变换进行了理论分析，而后在实际中加以验证。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！