模型理论

After an analysis of the enlightenment and guidance of correspondence principle on the physics thought and methodology in the course of proposing quantum theory and the establishment of quantum mechanics, this article discusses the ideological connotation and puts forward the belief that correspondence principle reflects the fact that when substance can be neglected within certain limits, the physics model with universality is tending to become similar to that with particularity.

分析了在量子论的提出和量子力学的建立过程中，对应原理在物理思想和方法论上的启发和指导作用；讨论了对应原理的思想内涵，认为对应原理反映了当物质的某些属性在极限情况下可以忽略时，普遍性的物理模型趋同于特殊性的物理模型，普遍性的理论可以过渡到特殊性的理论，在结论上趋同于特殊性的理论。

Research on the theory of structure light sensor Originating from the principles of projective and perspective transformation, for the first time, the models of coordinate transformation between workpiece and camera with arbitrary angle of laser light and camera are presented. The model give some very important rules for the design of structure light sensor, and is very important to the design of structure light sensor, the sensor designed based on the theory above is used in automatic welding.

结构光传感器的理论研究依据透视变换理论给出了光源倾斜照射和摄象机倾斜接收情况下，被检测物体与摄象机之间的一般坐标变换数学模型，该模型揭示出结构光传感器设计时应遵循的一些原则，对结构光传感器的设计具有非常重要的指导意义，基于该模型设计的结构光传感器已在自动焊接实验中获得了成功的应用。

Based on the science idea of coupling, this paper studied systematically the theory, mathematical model and technology of rock mass hydraulics in coal mining above aquifer, the numerical simulation method, the resemble simulation theory and method. A series of reciprocity law on the stress and displacement of upper and down floor of coal layer, coal pole, fault and the law of water pressure variety was analyzed thoroughly and particularly. Based on the relation of hydraulics character of multi-aquifer, the inspecting and predicting theory model, method and system of water outburst was founded. By used in the colliery, The results were ratified by colliery missionary. In situ test for the hydraulics character of the floor on hydrology observation hole was done.

本文基于固流耦合作用的学术思想，通过理论研究、相似模拟实验、数值分析及现场实际应用，系统研究了带压开采的块裂介质岩体水力学数学模型，数值模拟方法，相似模拟理论与方法，深入细致地分析了带压开采中项底板、煤柱、断层的应力位移分布、含水层水位变化等一系列相互作用规律，并建立了基于多含水层水力联系的底板突水监测预报理论模型及其监测预报方法与系统，并将研究成果应用于现场实际，得到了现场工作人员的一致认可。

Based on this theory, this paper discusses its importance on the recognizability, standardization and fast modeling of building model, and emphases are loaded on the structure and classification of basic geometric units that constitute the 3D model of buildings and on how the model of intricate building is established in different levels of details.

文中基于这一理论，讨论了该理论在建筑物模型的可识别性、标准性以及快速建模中的意义，并在此基础上重点研究了构成建筑物三维模型的基本几何单元的构成与分类，以及复杂建筑物在不同细节层次下的模型构建。

The general objective of the thesis is to develop a language-based foundational theory of security for mobile and distributed systems, and this thesis focus on the following four interrelated aspects. Firstly, aiming at the access control, a type system with security levels is proposed and the Subject Reduction Theorem under labelled transition system is proved.

针对安全模型面临的困难与挑战，本研究从分析移动系统安全的实质出发，对系统安全进行高度的抽象，使用π-演算及其类型系统为理论工具为分布式系统安全建模，提出对安全模型的定义、规范、分析与实现都借助程序语言的理论、技术与方法的一体化路线，研究基于程序设计语言的安全模型。

The research results show that renewal theory can be used to direct the policymaker of the vehicle maintenance and repair and it is very effective to simplify the mathematical models and the solutions to the models.

研究结果显示：更新理论完全可用于指导车辆的维修决策，而且对简化问题的数学模型及模型的解非常有效；运行试验的验证结果表明，基于更新理论和更新函数所建立的车辆最优维护周期数学模型的解是准确、可靠且符合实际的。

The dynamics and heat transfer on the spinning line during the air drawing process are discussed in detail, mainly relating the forces acting upon the polymer along the spinning line and the expressions of the air drawing coefficient C〓 and heat transfer coefficient h. By introducing the power-law model as the constitutive equation to describe the theological properties of polymer melt and considering the changing of the density and specific heat capacity of polymer melt at constant pressure with the polymer temperature, the former model of polymer air drawing is improved and a complete polymer air drawing model is established, which is integrated with the model of air jet flow field of dual slot die.

在此基础上，对前人的聚合物拉伸理论模型进行了改进，以幂律模型作为描述聚合物熔体流变行为的本构方程，并考虑了聚合物熔体密度和定压比热随聚合物熔体温度变化而变化这个因素，从而建立了完整的熔喷聚合物拉伸理论模型。

The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.

本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。

In the second part, he takes some models in contrast to offer substratum for the model of FCFE.

第二部分是几种模型的比较分析，主要阐述在我国应用比较广泛的几种理论基础和数据模型，比较优劣势，从而为接下来股权自由现金流模型的应用提供理论依据。

Basically, the contents of this paper are organized as follows: Firstly, it is interpreted that the technical identifications of higher education and economic growth and the relative theories such as human capital and new economic growth, which can make theatric basis for the further empirical study. After that, the paper is to construct a couple of index systems to depict higher education development and economic growth respectively. At the end of this paper, it will adopt the dynamic econometric models such as Granger causality test, co-integration test, VAR and VECM model, to evaluate the co-relations between the two systems. According to the empirical study, the paper comes to the conclusions as follows:(1) There really exists one-way causality between the economic growth and the higher education, i.e.

本文内容基本安排如下：首先本文阐述经济增长和高等教育发展的内涵及其相关的理论，为本文的实证研究奠定理论基础；然后构建高等教育发展和经济增长两个指标体系，以描述高等教育发展和经济增长两个多因素相互作用的复杂过程；最后本文以1978-2003年的时间序列数据为数据资源，运用Granger 因果检验、协整检验、VAR 模型以其向量误差纠正模型VECM 等动态经济计量模型进行实证分析。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。