模型理论

The inelastic scattering angular distributions of discrete levels and double differential cross sections were calculated and analyzed by using the distorted wave Born approximation theory ,the unified Hauser-Feshbach model and the exciton model.

应用得到的光学模型势参量，根据光学模型、统一的Hauser-Feshbach和激子模型理论以及扭曲波玻恩近似理论，系统计算和分析了中子与58，60Ni反应的非弹散射角分布和双微分截面，理论结果与实验很好地一致。

In this project, the theory of convex models is generalized from convex domain to non-convex domain, from small-range algorithm based on Taylor's series to large-range one so that the range of its application is extended and the computational precision is improved.

本项目将凸区域的凸模型理论推广到非凸区域上，将小范围泰勒展式算法拓广到大范围问题的求解中，扩大了凸模型理论的适用范围，提高了运算精度。

Accord ing to the latest theory of urban transportation planning and the method of fore casting traffic demands, a new model system and selated methods have been sugges ted here to fit with the transportation characteristics and environments of Lanz hou. A meaningful discursion is carried out on the composition, checking and app lication of meathematical models.

根据国内外城市交通规划理论的最新思想和预测模型理论，结合兰州市的交通特征和现状，提出了兰州市交通需求预测的模型体系和方法，并对组成模型的检验和标定等问题进行了有意义的探讨。

Alfred Tarski (1936),"On the Concept of Logical Consequence," in Tarski's Logic, Semantics, Metamathematics

上述有效性的模型理论说明源自於塔斯基的模型理论语意学，是本文所要处理的观

When these coefficients are quadratic functions of the porosity, specific constituent orthogonal weighting coefficients are derived from these orthogonal conditions along with a discussion about how to extend the applicable range of the constituent orthogonal weighting coefficients in the orthogonal coordinates. Based on the combination of the theory of critical porosity and the constituent model, it presents a specific example of the constituent model that includes two transforming points. The reasonability of above-mentioned theories is shown by comparison of theoretical calculations and measured data on effective elastic moduli of clean sandstone or sandstone analogs saturated with pure water.

再次，结合弹性模量组分关系方程与正交基函数理论，推导组分加权系数的正交条件；基于正交条件，提出组分加权系数为孔隙度二次多项式时正交组分加权系数的构造方法以及正交组分加权系数适用范围的拓展方法；结合临界孔隙度理论，提出一个基于两个状态分界点的组分模型实例；比较组分模型的计算结果与前人关于砂岩弹性模量的实验结果，证明了组分孔隙介质模型理论的合理性。

The general design framework for PTIDS and its systematic architecture are put forward by means of systematic engineering method in this paper. The transmission capability is studied by making use of following model. The comparison between a practical transmission capability measurement of a road in Beijing and the theoretical result verifies research bound of following model, also its applicable condition, which provides essential technical setout for intelligent dispatch management of PTV.

1运用系统工程研究方法，提出了公交车辆智能指挥调度总体框架及其体系结构，采用跟驰模型理论进行了路段通行能力分析研究，并结合实际测量统计分析了北京市区某路段道路通行能力与理论计算进行了分析比较，验证了跟驰模型所涉及的研究范围及适用环境，为公交车辆智能化运营调度管理提供了必要的技术数据和准备。

Based on theory of fuzzy sets and method of confirming index weight in AHP model, we establish respectively the quality comprehensively evaluating fuzzy models of the condition monitoring system, condition monitoring and analysing system, condition monitoring and analysing and fault diagnostic system of large rotating machines. We propose and establish the calculating formulas to assess the confidence level about application of the maximum subordinative rule.

基于模糊综合评定理论并结合AHP模型理论中确定指标权重系数的方法，分别建立了机组状态监测系统、机组状态监测分析系统和机组状态监测分析及故障诊断系统品质的模糊评定模型，针对模糊综合评定理论中最大隶属度原则的不足，提出了验证实施最大隶属度原则置信度的方法，给出了相应的计算公式。

From point of view of the model requirement in the design process of VP, the characteristics of an integrated VP model are given. Based on the Analyzable Product Model theory developed by Tamburini and Engineering Data Model theory developed by Eastman, the formal description of integrated model of VP is developed, and the application wrapper and the interface components are also designed.

本章中从虚拟样机设计过程中对模型的需求出发，提出虚拟样机一体化模型应该具有的功能特点；在Tamburini的可分析产品模型理论和Eastman的工程数据模型理论的基础上，提出虚拟样机一体化模型的形式化描述体系；接着对一体化模型的应用包装器和接口组建进行设计。

It is the first time to use the " soft ball model" theory of duster to explain the structure of Yn ( n=2-8),and adopt the "shell model" theory and assigning equally delocalize valence electrons of cluster to elucidate the relativity of structure and stability of doped cluster of noble metal Au,,Y(l -9) successfully.

首次利用团簇的&软球模型&理论解释了Y_n(n=2-8)的基态结构，采用团簇的&壳层模型&和价电子离域均分理论成功地阐明了贵金属掺杂团簇Au_nY(n=1-9)的结构与稳定性的关系。

Through the discussion of the theory of relevance ,figure-ground segregation,cognitive model,frames,scripts and stereotypical relation,this paper tries to expose the essence of cognitive understanding.

本文通过对关联理论、图形-背景分离说、认知模型理论、框架理论、图样理论、常规关系等认知理论的讨论，力图揭示认知理解的实质。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。