查询词典 theory model

Based on the analysis of the process of free orthogonal metal cutting, the theory of elastic-plastic distortion and temperature field was discussed. Yield rule, intensify rule, fluxion rule, types of contact and diathermanous model of metal cutting were also analyzed detailedly. The FEA model of stress field and temperature field of free orthogonal metal cutting were established by the fundamental idea of FEA. State nonlinear, material nonlinear and geometry nonlinear thermal-stress coupling were analyzed by FEA technology. The separate criterion of chip and dispose of contact types were research emphatically.

本文在直角自由切削过程分析的基础上，讨论了金属切削过程中的弹塑性变形理论和温度场理论，详细分析了屈服准则、强化准则、流动准则、金属切削传热模型、接触类型等问题，并利用有限元的基本思想，建立了直角自由切削应力场和温度场的有限元模型，进行了状态非线性、材料非线性和几何非线性的热力耦合分析，重点研究了切屑分离标准的确定、表面接触类型的处理等问题。

With the quantitative retrieval of vegetation cover, the experiential model is built by NDVI and practical data. According to the theory of the mixed pixel decomposing, NDVIsoyi and NDVIveg are confirmed and the dimidiate pixel model is built.

在对植被盖度的定量反演中，选用NDVI与实测数据建立了经验模型，根据混合像元分解的理论，确定出NDVISOYI和NDVIveg，建立了像元二分模型。

Secondly, the vector control theory,the kinematics model and the sinusoidal space vector Pulse-Width-Modulation control technology were analyzed dividually, and then the mathematic simulation model of the servo system of PMSLM was built.

其次，综合运用电机控制理论和计算机仿真技术，分别对永磁同步直线电机的矢量控制原理、运动力学模型以及电压空间矢量脉宽调制技术进行分析，搭建了永磁同步直线电机伺服控制系统的数学模型。

FBG sensing technology and its recent progress in applications isintroduced systematically;the coupled-mode theory and the sensing principleof FBG are expatiated and the Bragg formula and reflectivity formula arededuced;the work principle, variety and essential characteristic of PZT areexpatiated in detail, and the configuration of PZT parts of an apparatus issummarized. The mechanism of piezoelectric electrostriction is analyzeddeeply, and the normalized control model is introduced aiming at analyzinghysteresis characteristic, and an electrical polarization intensity control methodbased on the aforementioned model which can effectively reduce the hysteresischaracteristic is discussed.

论文系统地介绍了光纤光栅传感技术及其应用的研究进展状况；详细地阐述了光纤光栅的耦合模理论及光纤布喇格光栅的传感机理；推导出了光纤布喇格光栅的布喇格公式和反射率公式；详细地阐述了压电陶瓷的工作原理、种类和基本特性，总结了压电陶瓷器件的结构形式，深入地分析研究了压电陶瓷逆压电效应及电致伸缩机理，并针对其迟滞特性给出了压电陶瓷归一化控制模型，在此模型基础上采用电极化强度控制方法有效地降低了压电陶瓷的迟滞特性。

According to progress of lately Systematic Biology study and combine model Traditional Chinese Medicine theory,we can translate Traditional Chinese Medicine entrail into five function model of organism inner environment .

摘 要：在以往中医血液指纹图谱研究的基础上，根据系统生物学最近的研究进展，结合中医模型理论方法，可以把中医藏象解释为机体内环境的五个功能模块，目前在中医系统生物学研究中模块应该优先于网络分析，并从理论、网络生物学实验研究和复杂系统研究上给予证明。

Based on introducing the grey system theory,this paper discusses on the principle of the forecast of equidimensional filling vacancies,advances the dynamic model of grey forecasting of equidimensional filling vacancies in the medium-long term load forecasting of power system,and forecasts the yearly load value of this area in the period of 1999-2009 with the model established by using the historical load data of some areas.

在介绍灰色系统理论的基础上，讨论了等维递补预测原理，提出了电力系统中长期负荷预测的灰色等维递补预测动态模型，并利用某地区的历史负荷数据建模预测出了该地区1999—2009年的年负荷值。

Language. The result show that outburst coal structure can be divided according to features of geology, logging and physical mechanics; according to basic features and mechanism of gas outburst, with geology factors, mathematical geology model predicting gas content, emission and outburst can be established by quantification theory; the result of prediction for gas danger in Huainan Pansan mine by predicting model is relatively reliable, and the weaved map of gas geology can meet the need of production; the design of gas danger prediction software make prediction more convenient and fleeter.

结果表明，根据突出煤体的地质、测井和物理力学特征可以划分突出煤体结构；根据瓦斯突出的基本特征和机理，采用地质因素，利用数量化理论可以建立瓦斯含量、涌出量及突出预测的数学地质模型；利用预测模型对淮南潘三矿瓦斯危险性的预测结果较为可靠，编制的瓦斯地质图可以满足生产的要求；瓦斯危险性预测软件的开发使预测更为便捷和快速。

Based on Rough Set Theory, a neuralnetwork model of enterprise tacit knowledge communication isestablished and studied. Followingly this part discusses thedecision-making mechanism of enterprise tacit knowledgecommunication. R analyzes the multiple attribute decision-makings inenterprise tacit knowledge learning and a multiple attributedecision-making model is provided.

运用粗糙集理论对条件属性进行相对约简，通过去掉冗余条件属性，得到决策表的最小条件属性集和核，以决策表的某个约简作为输入层神经元，根据经验公式确定隐含层神经元个数，并以核元素连接对应输出层神经元，通过去掉冗余训练样本，提高沟通的学习效率，构建了企业隐性知识沟通神经网络优化模型。

Based on the summary of newest progresses of global gravity field models, isostatic models and flexural theory of Hthosphere and making used of global gravity model (UTCSR GRACE/GFZ EIGEN-GRACE), First, I calculate geoidal anomalies with different degrees and orders, isostatic residual geoidal anomalies of Hthosphere and horizontal stress distribution in Chinese mainland and vicinity and make an interpretation with multi-levels isostatic equilibrium. Secondly, combination with surface geology and others geophysical data, I analyze detailed structure of lithosphere within various segments of the central orogenic system, respectively. Then, On the basis of making a comparative analysis with among East-Asian tomography, anomalies of geoid and satellite magnetic field for lithosphere and gravity and aeromagnetic, I propose a the lithospheric structural framework model for the Chinese mainland and adjacent area, specially the COS.

利用国际最新的地球重力场模型(UTCSR GRACE/GFZ EIGEN-GRACE)和GTOPO 30数字高程模型，笔者首先计算了中国大陆不同球谐阶次大地水准面异常、岩石圈均衡剩余大地水准面异常和水平应力场分布，从岩石圈内多层次均衡角度进行了解释推断；其次，结合地表地质和其它综合地球物理资料，分区段对中央造山系及邻区分析与解释了岩石圈细结构；然后，通过东亚地区地震层析、大地水准面异常和卫星岩石圈磁场、全国重力与航空磁力对比分析，建立了中国大陆及其邻区岩石圈，特别是中央造山系的初步结构框架。

The analysis of the basic knowledge of geothermic field of natural gas hydrate reservoir regions in seafloor indicates that it is feasible to establish the basic geothermic field model of natural gas hydrate reservoir regions in seafloor following the theory and method of basin geothermic model.

在分析海底天然气水合物赋藏区域地热场特征的基础上，借鉴盆地地热模型理论和方法，建立了海底天然气水合物赋藏区域的地热基本模型，并详细介绍了边界条件和导热系数的确定方法。

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。