模型理论

A method for reasonably integrating the characters of Bayer pattern with the process of wavelet transform is presented.

结合差值模型与小波变换理论，提出高频相似模型，并在理论分析的基础上，给出产生该模型时小波变换应满足的条件；从Bayer模式的内在特征出发，找到其与小波变换过程巧妙结合的方法，进而提出了R，B平面的一种有效重构方法。

By the theoretical analysis of battings' thermal resistance and the test of battings' thermal resistance at different compression condition, some advise is given to the theoretical model of battings' thermal resistance.

此外，本文通过对絮片热阻的理论分析，对前人建立的絮片热阻的理论模型提出了建议，认为絮片热阻模型的推导必须考虑接触热阻，建立了絮片传热热阻的物理模型。

The thesis selected model in according to the phases of electrical trade, detruded academic price formula, gained academic price of electric power industry, and then analyzed actual investment value of electric power industry in according to comparing academic price and actual price of electric power industry.

由文章中分析的电力行业所处的周期选择模型，然后根据所选模型推导出电力行业股票理论价格和合理市盈率的公式，把已知数据带入公式求解，得到电力行业的理论价格和合理市盈率，最后，用电力行业的理论价格和合理市盈率与实际价格和实际市盈率比较，分析电力行业实际的投资价值。

Applying the theories of thermodynamics and mechanics, the working process of basicAPE--single-stage expansion, is analyzed and its related mathematicmodel is built up. The simulation methods based on this model are discussed, which is the preparation for the later research work.Chapter 3: The working characteristics of the single-stage expansion engine are researched on by the simulation.

运用热力学和力学理论对最基础的气动发动机——单级膨胀气动发动机的工作过程进行了研究分析，建立了相应的数学模型，讨论了应用该模型对气动发动机进行理论分析的仿真计算方法，浙江大学博士学位论文：气动发动机探索性研究为后续理论研究打下基础。

Product color intelligent design and optimization techniques based on genetic andimmunity theory This paper introduces genetic and immunity theory into PCID study, establishes a genecoding principle based on product subassembly, constructs a fitness function of colorschemes according to SCCA model, applies genetic and immunity algorithm to simulate theradiation and convergence process of MT, at last it builds a product color design model.Experiments prove that this method can design and optimize color schemes on its own.

5基于遗传与免疫理论的产品色彩方案生成与优化技术把基因遗传和生物免疫理论引入产品色彩智能设计中，提出以产品组件为基本进化单元的基因编码方法，根据形色耦合美度模型构造了色彩方案适应度函数，综合应用遗传算法与免疫算法模拟色彩设计复合思维的发散和聚敛过程并构建了色彩创新模型，算例表明该模型能解决产品色彩方案的自动生成与优化问题。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

Firstly, This text has described information fusion technology characteristic, form structure and concrete processing method, and application of information fusion in fault diagnosis proves the feasibility and validity from the angle of information theory. Based on this,it is combined the fault diagnosis of aeroengine with Information fusion, a method and model which the fault diagnosis of aeroengine information fusion is brought forward. a research which combined neural networks with D-S evidence is brought forward. Based on the analysis of single neural network characteristic, the model of roted neural network is put forward. With the simulation based on the example, we can know evidence theory fusion improved the fault diagnosis It is hard to give the basic probability function in the process of using the evidence theory, So the model based on network and D-S evidence is put forword.

本文首先论述了信息融合技术的特点、形式结构和具体的处理方法，并从信息论的角度论证了信息融合技术在故障诊断中的可行性和有效性；在此基础上，将航空发动机故障诊断与信息融合相结合，提出了一种基于信息融合技术的发动机故障诊断模型和方法，并在此基础上，提出和分析了基于人工神经网络和D-S证据理论的信息融合故障诊断，研究了神经网络的建模方法、组建原则和实现策略，并结合诊断实例进行了分析；提出了基于D-S证据理论的决策融合，阐述了D-S证据理论的方法，模型，并结合算例进行了分析。

Based on analysis of the theory and experiment, optimal design ways are suggested. Then the scale-up of pin mill is studied by means of similar theory, which will povide theorecal basis for scale-up of mill from optimal experiment model mill to practice mill.

在理论及实验分析的基础上，提出了销棒粉碎机的设计思路，并采用相似理论对粉碎机的模型放大进行了分析，研究了由优化的实验模型向实体模型放大的方法，为销棒粉碎机的设计提供了理论基础。

A theoretical model for ST type pulse tube refrigerator is set up and numerical results are achieved with this physical model.

建立了斯特林型脉管制冷机的理论模型，对其进行了相应的有限差分数值模拟，并运用此理论模型，详细分析了小孔阀和双向进气阀开度对制冷机性能的影响，为实验研究提供理论基础； 2。

To explore factors of knowledge transfer and the relations between the factors and capacities of knowledge transfer (the maturity of knowledge management) in enterprises, the theories and methods of management and statistics were employed in the present study. Based on the analysis of processes in knowledge transfer and the core of knowledge management that refers to individuals, groups and organizations, a three-component model of knowledge transfer, which is the general model in this study, was obtained.

本研究主要探讨企业知识转移过程中的影响因素及其与转移能力的关系，基于管理学、统计学的理论与方法，从分析企业知识转移的根本过程出发，以个体、群体、组织为研究核心，从现有知识转移模型中推导出知识转移三元模型，通过10家企业的实证性研究，对这一理论模型进行了验证。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。