查询词典 Model

By correcting noise variance matrix of system state of constant turn model wit h maneuvering frequency coefficient and angular accelerˉ ation variance, the turning model set with different angular was d esigned, the model probability matrix was given. An interactive multiple model algorithms with adaptiveˉturning model w ere built.

通过机动频率系数和角加速度方差修正常速转弯模型的系统状态噪声方差矩阵，设计了不同角速率的转弯模型集，给出了相应模型的状态转移概率，建立了一种自适应转弯模型的交互多模型算法。

The contents from the third chapter to the fifth chapter are the kernels which are a series of applications of generalized regression model and generalized regression estimator. At first, this paper constructs ratio model, linear regression model, post-stratified regression model and nonparametric regression model through different regressive relationship between auxiliary variable and study variable.

首先是依据辅助变量与研究变量之间回归关系的不同，分别建立比率模型、线性回归模型、事后分层回归模型和非参数回归模型，然后再利用第二章中推导出的广义回归估计理论，对各种回归模型辅助下(来源：A4bBC12论文网www.abclunwen.com)的估计方法进行了系统性研究，从而构成了模型辅助估计方法的整个研究体系。

Firstly, the establishment of model requires sophisticated neurointerventional techniques and costly interventional materials(sacculus, minikin circlip ring, endovascular electrocoagulation), it not only consumed time but also increased the resesrch expense ; Secondly, although the Massoud model is the first successful model that contain the nidus, but it is far from mimicking the high-flow fistulae frequently observed in a brain AVM; Thirdly, the rapid spontaneous thrombosis result in fistula occlusion in a short time;Fouthly, the model's natural course and the long–term patency of fistula are unclear;Currently the model is only used for the short-term research.

但Massoud模型目前存在以下主要缺点：第一，模型的建立需要复杂的神经介入技术和昂贵的介入材料(球囊、微弹簧圈、血管内电凝等)，操作费时，又大大增加了研究费用；第二，Massoud模型虽然首次具备了畸形血管团，但它远不是我们临床上常见的含有高流量动静脉瘘的脑AVM；第三，颈动静脉吻合口自发性血栓形成进而导致引流静脉闭塞的机率很高；第四，Massoud模型的长期自然过程和动静脉吻合口的长期通畅性尚不清楚，目前仅仅作为急性期模型。

A Foundation Model - the Graded Component Object Model of Product Family is offered on the analysis of knowledge characteristics of PFM. Then, the component object, the Conjunctional Hiberarchy Model of Product and the relationships among component objects are defined respectively. Whereafter, the rapid generating mechanism of the instances of component objects and product is introduced. Based on the theory of GCOM, an Enhanced Model - the Skeleton Model of Product Family is offered.

通过分析产品族模型蕴含知识特性，提出了一种具体的产品族基础模型表达——产品族元件分级对象模型，分别定义了各级元件对象、层次联接结构模型和元件对象关系，并探讨了产品族元件分级对象实例的生成与产品实例快速获取的机制。

After 1-D approximating of electrostatic fields in the IDT, we give the basic analysis model of IDT: the Delta function model, impulse response model, equivalent circuit model, and the model parameters.

从激励产生SAW的IDT上静电场的一阶近似入手，给出了分析IDT的基本模型：δ函数模型、脉冲响应模型、等效电路模型，给出了各模型的基本特点与参数。

Firstly, we briefly introduce the assembly model, analyze and evaluate the typical assembly model. Secondly, we propose a new-layered assembly model which is based on discrete face. At last, we briefly discuss how to use the DENEB system to abstract the information from the CAD model and how to add constrain information to the DENEB model.

首先，对装配模型进行了简要介绍，并对当前典型的装配模型及其特点进行了介绍和分析；其次，结合本文提出的装配规划算法提出了基于离散面片的层次化装配模型；最后，简要介绍了如何通过DENEB系统对CAD模型中的信息进行抽取以及如何添加约束信息。

Methods Introduce some common used experimental animal models in the medical psychological studies,include anxious animal model,depression animal model,post trauma stress disordermodel ,morphine dependent model of rat,sleep deprival animal model and society stress animal model.

主要包括有焦虑动物模型、抑郁动物模型、创伤后应激障碍模型、大鼠吗啡成瘾及戒断模型、睡眠剥夺动物模型及社会应激动物模型等。结果了解医学心理学研究中的动物模型制作和使用方法。

Consequently the diathermancy was strengthened, the effect of heat transfer was improved and the flow and combustion process in the boiler has become much better. First, in this thesis the burn characteristic of the rubbish and the process of combustion in the chain boiler has been studied. A series of mathematic model has been given. This thesis carefully introduced the principle and formula of the turbulent flow model、two-equation model、radiation model、dispersed phase model and standard wall function method. The software FLUENT has been applied to simulate the temperature、pressure、velocity and mass fraction of species in the boiler furnace and stokehole. The analysis and the comparison have been done. The calculation results indicate agreement with the fact and the studies both here and abroad.

首先，本文针对SZL10-1.25-MJ造纸垃圾焚烧锅炉，结合其燃料的特性，对垃圾的燃烧特性以及层燃炉中垃圾的焚烧过程进行分析；给出一套完整的垃圾锅炉炉内传热数学模型，并分别详细阐述了湍流流动模型、双方程模型、辐射传热模型、离散相模型及标准壁面函数的原理及计算公式；借助于Fluent软件平台对炉膛内的温度场、速度场、组分浓度场及炉膛出口的温度分布、速度分布、组分浓度分布等进行数值模拟，分别从定性和定量的角度与实际情况进行了比较，得到了较满意的结果；模拟结果与国内外的很多研究能较好符合。

In the section of physical models, the paper presents a three-dimensional model called nine-equational model that treats the object as two phases and two components. The nine-equational model includesκ－εturbulence model and diffusibility model owing to the gradient of mass concentration.

在物理模型部分，本文对钢安全壳内部大空间提出了三维、两相、两组份、对气相引入κ－ε湍流计算模型和考虑由于气体浓度差引起的扩散效应的九方程模型。

Taking a heavy truck cab as the example, a model of the spotweld space based on finite element was built to analyse the torsional stiffness of the model, and the amount and layout of the spotweld using the discrete variable topology optimization were optimized. Comparing with the original model in welding spot's number and the torsional stiffness, the optimized model has less number of welding spot, but the torsional stiffness of the two model is almost the same.

以某重型卡车驾驶室为例，在有限元模型基础上建立焊点空间模型进行扭转刚度分析，并采用离散变量拓扑优化方法对焊点的数量及空间布局进行优化，通过优化前后的对比可知，优化后在不降低扭转刚度的同时减少了焊点数目。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。