理论模型

According to the VESs analysis, the intrinsic brittleness of Fe〓Al is due to less lattice electrons, bondcomplex distribution heterogeneity, hydrogen-induced embrittlement, and the difficulty in recovery of the lattice symmetry, while various alloying elements have strengthening and toughening effects through altering the VES parameters.

运用固体与分子经验电子理论建立起Fe〓Al合金各相的价电子结构，在计算中，首次尝试利用TFD模型确定Fe〓Al的原子杂阶，针对不完全有序的B2-Fe〓Al提出"局部平均原子模型"，对Fe〓Al的室温脆性从电子理论上进行了系统的阐述，认为较少的晶格电子、键络分布不均匀、氢致脆性和难以恢复晶体的对称性使Fe〓Al具有本质脆性，合金化元素可以在一定程度上改变价电子结构参数而改善强度和韧性。

Traditional theory focused on how to explain the characters of the term structure, which can be divided into three orientations– expectations theory, segmentation theory and liquidity preference theory.

接着对国内外的理论和模型进行了梳理。传统的利率理论只是定性说明实际市场中观察到的收益率经验曲线为基本特征，根据假说的不同可区分为三类：预期理论、市场分割理论和流动性偏好理论。

By applying game theory and contraction mapping theorem, a sufficient condition for the existence and uniqueness of Nash equilibrium in a multi-person non-cooperative game is proposed. Another implication in the sense of game theory is presented for the stability condition of supply-demand equilibrium in traditional economic theory. It can demonstrate the stability condition for supply-demand equilibrium in economic theory. So the stable supply-demand equilibrium of cobweb model in economics is in fact equivalent to the Nash equilibrium in game theory. That is a brand-new explanation for the conclusion in traditional economic theory.

应用博弈论中的有关理论与压缩映象定理寻求一类多ISP非合作对策纳什均衡存在、唯一的充分条件，给出了传统经济理论中供求均衡稳定性条件的对策论意义，证明了经济理论中的供求均衡稳定性条件；说明了经济学中蛛网模型的稳定供求均衡实际上就是对策理论中的纳什均衡，从而给出了传统经济理论中关于这一结论的新解释。

So, establishing the evaluation and framework of Regional indigenous innovation capability and analyzing the relationship between the formal measurement and other regional development quality is becoming an important and practical task. A conceptual model of regional indigenous innovation capability is set up based on the all kinds of capability development theory from macro perspective and focusing on reform and open policy in China. Through the concrete evaluation of regional indigenous innovation capability, we propose the research hypothesis of relationship between regional economic development quality and regional indigenous innovation capability. In reference of new development theory, the measurable analysis model is set up to further multi-level demonstration and draws corresponding conclusion and policy.

本文在总结目前各种宏观层次上能力发展理论包括国家技术能力、国家创新能力、社会能力、国家吸收能力等的基础上，针对我国改革开放以来的发展实际，建立了我国各地区自主创新能力评价的概念模型，对各地区自主创新能力进行了具体评价，提出了其与地区经济增长质量关系的研究假设；在此基础上，参考新经济增长理论有关成果，建立了分析地区自主创新能力和经济增长质量关系的计量模型，并进行了多层次逐步推进以及考虑主解释变量内生性问题的实证研究，得到了相应的结论和政策启示。

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

Based on the model of safe following distance, the recognition theory of the minatory objects is put forward and the model of potential menace is established, which afford a theoretic base in order to decrease the nuisance alarms and enhance the reliability of the system.

本文在安全跟车模型的基础上，提出了目标物有效性识别理论，并建立了潜在威胁目标的判别模型，为减少系统的虚警率、提高系统的可靠性提供了理论支持。

Based on classical theory of mechanics, analytical procedure was developed to predict initial stiffness, plastic stiffness and plastic ultimate moment capacity of top-and-seat angle minor axis connections.

根据本文的理论计算结果，使用三参数幂函数和指数函数两种数学模型模拟了钢框架梁柱弱轴顶底角钢连接的弯矩—转角曲线，理论分析得出的数学模型和试验结果吻合较好。

The new elucidation of distributed activation energy was given in which not only an analytic expression of activation energy was obtained for the first time,but also the theoretical proof of Miura′s integration method in DAEM model was realized.

对分布活化能模型进行了新的理论阐述，不仅给出了分布活化能模型中活化能项的解析表达式，得到了Miura积分法的理论证明，还系统研究了这一新的DAEM表述对焦油馏分模拟蒸馏二级反应体系的适用性。

With the development of the theory of constitutive model of soil, the elastic constitutive model was displaced by some non-linear constitutive models such as the Duncan-Chang model, Cam-clay model, etc, which leads to that the Biot′s consolidation theory has developed from elastic into nonelastic.

随着对岩土本构关系研究的深入，经典Biot理论中土体采用弹性应力应变关系的假定逐渐被一些非线性本构关系取代，如Duncan-Chang模型、剑桥模型等，将Biot固结理论由线性推向了非线性。

In the first part, we introduce the nonstandard analysis theory simply.

第一部分，我们对非标准分析理论进行了简单的概述，通过用分标准理论中的公理，给出非标准模型并讨论非标准模型的一些性质。

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。