模型理论

The structure beam response control method based on the traveling wave model was discussed theoretically. The theoretical traveling wave model was applied to a long thin beam with piezocrystal actuators and the traveling wave active control law for the condition of making measurement upstream and performing control downstream was derived and the control compensator formula of the flexural waveguide in the form of transcendental function was deduced.

从理论上探讨了基于行波模型的结构梁响应控制方法，在梁及压电陶瓷作动器处采用行波理论模型，导出了上游测量、下游点施加控制的行波主动控制律及相应的具有超越函数形式的控制补偿器表达式。

Based on the generalized dynamic inflow theory and classic non-steady aerodynamic loading theory, a real-time model is obtained by establishing wake distortion and decay, Then a real-time quasi-steady turboshaft twin-engined model is founded by simulating the rotor speed fluctuation.

在广义动态入流理论的基础上，基于经典非定常气动栽荷理论，建立了尾迹畸变和尾迹耗散的实时分析模型。为模拟大负载情况下旋翼转速的波动，建立了双发准定常涡轮轴发动机实时仿真模型。

In this paper,samples as a sensitive issue in two kinds of random survey answered model,from two angles of a large sample theory and a small sample theory respectively,the estimates obtained by the quantity of unbiasedness ,effectiveness,consistency of the strength of the areas of evaluation and assessment are to survey it is reasonable and effective.

以敏感问题调查中两种随机化回答模型为例，分别从小样本理论和大样本理论两个角度，对所得到的估计量进行无偏性、有效性、强弱相合性等方面的评估，从而评价此种统计调查方法的合理性和有效性，最后给出两种模型的实例分析。

It first reviews western industrial relations theories, including Unitarianism, pluralism, Marxism, industrial relations system, strategic choice model, and international comparative industrial relations study.

首先回顾西方发达国家的劳资关系理论，包括一元论、多元论、马克思主义的劳资关系理论、劳资关系系统模型、MIT的战略选择模型、以及国际比较劳资关系研究等。

In order to compare the theoretical price and real price of the warrants, this paper use control variate method to compare the GARCH Model and BS Model. The theoretical price of BS Model is used as control variate call option.

欲比较所模拟的权证理论价格及权证实际的价格，本文加入了控制变异法来进行模型的比较，以Black-Scholes模型的模拟价格当作控制变异买权，然后模拟出控制变异法的理论价格。

Firstly, it seeks the sources from which theories have been developed, by a summary of evolution or a road-map. Secondly, it explains the two basic forms taken by traditional theories on intra-industry trade, namely, horizontal intra-industry trade model and vertical intra-industry trade model. Both models take final products as trade objects and products of same industry are thus simultaneously exported and imported among developed nations and among developed nations and developing ones.Thirdly, it points out that the theory of vertical intra-industry trade has already been expanded in scope in the area of trade between developed countries and LDCs. It shows that the implication of vertical intra-industry trade has expanded to the importation and exportation of parts and components, intermediate products or processing products produced via various working procedures or different production links within the same industry, with MNCs as carriers. It gives the summary of the methods of measuring intra-industry trade and argues that the basic method adopted by this thesis is G-L Index. In addition, GHM and Input-output Analysis are introduced to demonstrate the expansion of vertical intra-industry trade.

首先，通过整理国际贸易理论的发展脉络，寻求产业内贸易的理论渊源；其次，阐述产业内贸易传统理论的两种基本形式，水平型产业内贸易与垂直型产业内贸易的理论模型，指出两者都以最终产品为贸易对象，实现了发达国家之间或发达国家与发展中国家之间的同一产业内产品的同时进口和出口；第三，结合全球化的特点和跨国公司在国际要素分工中的基础作用，指出发达国家与发展中国家之间的垂直型产业内贸易理论已经得到拓展，表明垂直型产业内贸易涵义已发展成为以跨国公司为载体的同一产业内不同生产工序或不同生产环节的零部件、中间产品或加工产品的进口和出口；最后，归纳了产业内贸易的计量方法，指出本文的产业内贸易基本计量方法是G-L指数(格鲁贝尔-洛伊德计量法)，并在此基础上进一步说明与垂直型产业内贸易的拓展相关的计量方法包括：GHM计量法和Hummels投入-产出分析法。

The paper studies the degradation rule of physical mechanical property of vulcanizate during the period of heat ageing, which involves the relationship between the property, variable temperature and time. The analytic expressions for the frictional temperature rise of the interface were presented according to the theory of heat conduction of solid when a tire slides of rolls along the road.

本课题针对影响汽车轮胎橡胶机械性能的温度老化模型进行了一定深度的理论研究，并进一步研究轮胎的在滑动、滚动时的温度场的数学模型，在理论上论证了温度、压力是影响轮胎行使安全性能的重要因素，并以其作为最终的监测对象。

Utilized the correlative knowledge of mathematics and theoretical mechanics, the movement measure of the rolling forming of rectangle ring have been studied that based on the ring rolling theory. And the corresponding geometrical models and mathematical models have been established. It was revealed the variation law of ring in the cold rolling process.With the rolling processing, the inside and outside diameters of ring gradually increased with the cures similarly hyperbolic and the augment speed of the inside diameter was obviously larger than the augment speed of the outside diameter. With the rolling processing, the displacement, speed and acceleration of the ring centre gradually increased in the feeding direction in the horizontal and vertical ring rolling mill. With the rolling processing, the moment of inertia which ring reeled its centre and the whirligig of ring gradually increased. It caused the rotary speed gradually decreased. And it was benefit to decrease the circle tolerance and improve the precision of final molding.

本文基于环件轧制理论，运用相关的数学知识和理论力学知识，研究了冷轧过程中矩形截面环件轧制成形的运动测量，并建立相关的几何模型和数学模型，揭示了冷轧过程中环件的变化规律：随着轧制过程的进行，环件的内外径随类似于双曲线的曲线逐渐增大，且环件内径增大速度大于外径增大速度；在卧式轧环机和立式轧环机下，随着轧制过程的进行，环件中心的位移、速度及加速度不断增大；随着轧制过程的进行，环件绕其中心的转动惯量不断增大，导致环件的转速不断减小，这样有利于环件的整圆和最终成形环件的精度。

This paper briefly introduces the come about background, content, model and development of Markowitz's Portfolio Theory before hand, and then builds a basic and simple target function model, considers the problem of existence of investment upper limit in single and overall investment, determines the relationship between yeild rate and risk rate, further deepens the appliction of the theory through actual case analysis, during which data analysis is also applied by using LINGO program.

本文首先简单地介绍了马克维茨投资组合理论的诞生背景、、内容、模型及发展，然后建立一个基本、简单的目标函数模型，考虑单个投资和整体投资有投资上限的问题，确定收益率与风险率的关系，通过实际的案例分析进一步加深对该理论的应用。在案例的分析过程中运用LINGO程序分析数据。

And an on-line adaptative training algorithm of the weights of neuron is given, which enhances fusion precision of the model, fault tolerance and adaptive ability for subsystems 4 In order to diagnose the soft fault of integrated system, a new fault detection method is proposed based on federated filter, which can detect fault of system in short interval and greatly enhance the method sensitivity to fault A fault diagnosis method of Dynamically Tuned Gyro baesd on parameter estimation of kinetics model of rotor, and signal pretreatment, parameter estimation and strategy of fault identification are studied in detail The method can locate fault of DTG correctly and effectively, which provides a new approach and idea for gyro fault diagonsis 5 In order to diagnose the hard fault of integrated system, fault tree analysis is studied on fault disgnosis of integrated system circuits, and the hardware and software of disgnosis system are developed, with faults located to main module and circuit For futhur diagnosis, an optimal measurement technology in detection of circuits is discussed by improving an algorithm based on information theory, and a pratical method based on half-split method is proposed.

针对组合系统的软故障诊断问题，提出了基于联合滤波模型的一种新的故障检测算法，给出了算法的理论推导过程，该算法能在较短的时间内检测出系统故障，提高了算法对故障的敏感度；研究了基于动调陀螺转子动力学模型参数辨识的故障诊断方法，就其中的信号预处理、参数辨识及故障决策方法等关键技术进行了详细的研究，该方法可以正确、有效地检测与定位动调陀螺故障，为陀螺故障诊断提供了新的途径和思路。 5。针对组合系统的硬故障诊断问题，研究了基于系统浅知识推理的故障树法在组合系统电路子系统故障诊断中的应用，开发了相关诊断系统的软硬件，故障可定位到系统的主要功能模块和电路板级。为了进一步的故障定位，研究了电路板故障的最优检测问题，完善了基于信息理论的优化算法，并提出了基于&对分法&的一种实用的优化算法，故障可定位到电路板的主要功能元件级。在组建的SINS/GPS组合系统实验平台上，针对上述研究内容，进行了大量的实验研究。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。