模型理论

A theoretical model based on isothermal mixture was established in which the intermittency was explained by interaction between the scalar concentration field and the vortex momentum field.

利用这一模型对射流边界的卷吸，燃料与氧化剂的混合以及这种作用对扩散火焰点火条件的影响进行了理论解释，从而为火焰熄火的预测提供了一种新的理论模型。

The framework which accounts for the integration of environment, English teaching theories, emotion and teaching strategies contains four towers -language perception, language understanding processing, emotions, instructional strategies and three levels-response processing, conscious management and meta-management as well as five most related emotional variants-anxiety, irritancy, confidence, excitement and joyfulness.

框架构建的理论背景是心理学理论、基于设计的理论和教学理论。从心理学视角阐述当今的情感模型和心理语言学理论，从基于设计的视角讨论认知情感架构，从二语习得Krashen情感过滤假说视角研究英语教学中的情感处理。

The model prediction is also compared with other theoretical models, for example, the Hashin-Shtrikman model for elastic constants and Kerner and Schapery models for thermal expansion coefficient. The model proposed in the present study shows similar precision on the properties of composites as the elastic modulus ratio is lower than 10. However, the elastic modulus ratio is higher than 20, the model proposed in the present study shows improved prediction on the properties of two-phase composites.

并与文献上其他理论模式进行预测性质之比较，例如：用於预测弹性常数的Hashin-Shtrikman模式、以及用於预测热膨胀系数的Kerner 及 Schapery模式，经由比较结果显示，当弹性系数的比值小於10时，本研究所建立的模型之预测值与其他理论模式有相似的精确预测功能，但是当弹性系数的比值大於20时，对於双相复合材料之弹性及热膨胀性质预测，本研究所建立的模型具有较佳的预测结果。

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。

So the expert system technology was first introduced to the alloy's grain boundary microchemistry design and the prediction of alloy's toughness.

通过专家系统，可以将各种理论模型、经验规律等加以综合运用，解决利用单一模型或理论所造成的局限性。总之，专家系统在材料设计中会发挥其重要作用。

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。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。