模型

After compairing the characters of logit model and probit model, this paper chooses logit model as the parking choice model.

接着在分析了logit模型和probit模型的优缺点后，决定选用logit模型作为停车场选择模型。

The essential point in the theories and applications of product modeling is that an integral data model covering all stages of the life cycle of a product must be established.

产品造型理论及技术的中心在于建立产品在其整个生命周期中的信息模型，包括产品数据模型、产品设计过程模型以及产品设计活动模型。

Besides expressing design result, it provides domain constraint for design process and model information for digital assembly sequence planning and simulation of stamping die, which is usually ignored in the former product models. Taking the specific structure and design process of stamping die into account, the information of workpiece is composed in die product model as product feature. Former product models merely contain mainly about the die design result, this model extends the contents of product model with the relation feature of the composed subassembly and parts and also other associated production knowledge. It is convenient for getting the associated information during intelligentized design process.

该模型不但能完整地表达冲模的设计结果，同时还表达和存储了冲模设计的知识信息，能较好地为冲模的设计过程提供规则和约束，支持产品的智能设计过程以及冲模的数字化预装配规划和仿真；而模型中冲压件信息的集成则扩大了冲模产品模型的信息内涵和应用外延，便于建立冲模智能设计过程的信息关联，从而使集成信息模型成为产品设计过程上、下游活动实现信息共享的基础。

In the frame, Design Structure Matrix is the tool to build up the models of product structure and development process. The product structure topology tree is defined, and the product structure DSM model is introduced. The formalized description about development process model is presented. The characteristics of the tools to build up development process are analyzed, the strongpoint of DSM is discussed, and the development process model based on DSM is introduced. The relation between product structure and development process is analyzed.

在研究框架中引入了产品结构和开发过程的建模工具——设计结构矩阵(Design Structure Matrix， DSM)；给出了产品结构拓朴树的定义及其形式化描述，并在此基础上引入了产品结构DSM模型；给出了产品开发过程模型的形式化描述，比较了几种常见的产品开发过程建模工具，分析了用DSM建模工具进行产品开发过程建模的优势，引入了产品开发过程DSM模型；分析了产品结构与开发过程之间的联系，提出了两者之间的集成机制，并在此基础上给出了IM-PSDP模型。

Proceeding from the above purpose and thinking, the following of research contents is launched that: Chapter one is a part of the prolegomena, and mainly introduce the purpose, meaning, research background, documents survey in which the tax compliance discrimination models concerned. On the basis of the investigation of the critical to taxation, Chapter two reveals the index system, and uses the discriminating analytical method to judge taxpayers" credit, and embodies its standard and methods in judgments. On the disvovery of the investigating taxpayers" microeconomics behavior, Chapter three uses the econometrical modeling methods and data mining technology, establishes Logistic regression model, calculates taxpayer credit measure and gives the empirical analysis; Chapter four gives a work methods and suggestions in practical application of identifying models; It is a conclusion of this paper, which reaffirms the main achievements and viewpoints of this paper.

从以上目的和思路出发，本文研究内容如下方式展开：论文第一章为绪论部分，主要介绍纳税人诚信识别模型研究的目的、意义、研究背景、文献综述以及全文框架；第二章在纳税评估问卷调查基础上，提出纳税评估指标体系，并应用多元统计的判别分析方法来给出评判纳税人诚信，并具体给出其判断的标准与方法；第三章在考察纳税人微观行为基础上采用计量经济建模方法和数据挖掘技术，建立定量能测算纳税人诚信水平的Logistic回归模型，并作实证分析：第四章对比分析纳税评估模型实证研究结果，并就模型在实际应用中的工作方法、建议及进一步的研究方向展开讨论；最后为本文的结论，在该部分将再次重申本文研究的主要成果和观点。

There are a lot of quark models now, constituent quark model, bag model, soliton model etc.

主要的夸克模型有：组分夸克模型、口袋模型、孤粒子模型等。

The research method is used, which combines the turbocharged engine dynamic performance simulation with the steady test. A quasi linear dynamic simulation model for turbocharged diesel engine is established. Neural network based emission model is established using the steady test data. A prediction simulation model of turbocharged engine dynamic emission is proposed based on MATLAB/SIMULINK.

采用了增压发动机动态性能模拟与稳态试验相结合的方法，建立了涡轮增压柴油机的准线性动态模型，利用稳态试验数据建立神经网络排放模型，提出了一种将2种模型结合起来在MATLAB/SIMULINK环境下的增压发动机动态排放预测仿真模型。

Methods 1、Choose one fresh pelvis specimen of adult man, affirmat it is normal or not by checking it with X-ray at first; then scan it with helix CT, keep the pelvic quiescing when being scaned. Obtain series fault images of the pelvis, import the images into Mimics10.01 software and restitue 3D visible model of pelvis.

获取骨盆系列断层图像，将图像按顺序导入利用Mimics10.01软件，重建骨盆三维可视模型；再利用FreeForm软件对模型进行修饰处理，并截取髋骨模型；然后将三维髋骨以IGES格式导入有限元软件Ansys8.0进行力学参数赋值，建立髋臼三维有限元模型。

Firstly, the random walk problem is introduced and the solution is schemed out theoretically. And then, the equivalent RC circuit for thermal analysis is discussed as the IC package is divided into many small blocks at the desired level of granularity. The techniques of analyzing the equivalent RC network by random walk algorithm are then discussed. At the same time, an equivalent model for thermal analysis is set up according to an IC chip. The proposed method is then applied to this model for both steady and transient analysis. Two speedup strategies, pseudo parallel walking and walk results reuse, are proposed sequentially to improve the algorithm performance.

首先简述随机行走问题的基本概念，给出问题的理论解法；然后讨论基于三维网格划分的IC芯片热等效阻容网络模型，着重分析随机行走算法在热等效模型中的应用，并建立一个实际芯片的热等效模型，采用随机行走算法模拟计算模型的稳态温度分布和瞬态温度变化；最后针对随机行走算法应用中的不足，提出了伪并行行走和结果重用2种加速技术。

When the geometric similitude ratio of the model to the prototype was determined and the loading similitude condition was satisfied by using similitude theory in structure modeling and experimental techniques, the prototype soil parameters were derived according to the model test result. The vibrating wheel compelled by harmonic exciting force was treated as a lumped mass vibrating system by equation equity method. By using this mechanical model in vibrating compaction, soil parameters were identified according to the equivalence of vibrating differential equation. The curve fitting method of amplitude versus frequency response was used for dynamic simulation based on the systematic dynamic equation of vibrating roller-soil system.

用相似理论与模型试验法在确定了模型与原型之间的几何相似比并满足载荷相似条件后，根据模型试验结果推导出了原型土体参数；用方程对等法把受简谐激振力作用的振动轮等效为集中质量振动系统，以此作为振动压实过程的力学模型，根据振动微分方程的等效条件进行识别；用幅频特性曲线拟合法以振动压路机－土壤系统动力学方程为基础，用计算机进行动态仿真。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷