模型理论

The researches in this paper are based on the abstract theoretic models which are more accordant with the reality of the electric power system than the classical Cournot model. The results will provide references for electric power producers to make optimal output decision.

本文的研究是建立在高度抽象的理论模型基础上的，所建的模型比经典Cournot模型更复杂也更贴近电力市场运行的实际情况，其结果可以为实际电力系统的政策制定者提供较好的参考作用。

On the other hand, many important risk processes are also special cases of Levy processes, such as Brownian motion, the compound Poisson process, the compound Poisson process perturbed by Brownian motion.

另一方面，风险理论中的许多风险模型，如经典风险模型，带干扰的经典风险模型，布朗运动等，均是一些特殊的Levy过程。

According to poisson distribution and percolation theory, we construct stock price model, and use characteristic function to prove the convergence of this model, we can get that the characteristic function of the constructed model converge on the characteristic function of the Black-Scholes function.

根据泊松分布和渗流理论构造了股票价格的随机模型，并利用特征函数的性质论证了该模型的收敛性，得出所构造的股票价格随机模型的特征函数收敛到某一个Black-Scholes公式的特征函数的结论。

The theatrical foundation of this paper is option pricing model. This paper focuses on the Black-Scholes model, details the basic postulation, principle and pricing formula. And it is pointed out that the postulation that volatility is constant can't reflect the varying market volatility. Violation of this postulation will lead to biased pricing results.

期权定价模型是本文分析的理论基础，文中以Black-Scholes模型为主，分析了期权定价模型的基本假设、原理与定价公式，指出波动率为常数的假设不能反映市场波动率的变化状况，对该假设的违背将使定价结果产生偏差，因此，波动率在期权定价中有重要的作用。

A method to compute transfer probability in the forecast model and to forecast quality of forecast model are discussed.

基于马尔可夫分析理论，给出了人才拥有量预测的马尔可夫模型，并且讨论了模型中转移概率的确定及模型的预测质量等问题

The time space regularity of overlying strata movement and damage induced by coal mining was studied using the dynamic mechanics model. The developing regularty of faults and bed separation as well as surface subsidence caused by mining was analyzed based on the geological and mining conditions of working face 5306 in Xinglongzhuang Coal Mine. The data explaination using the model is more reasonable than that using other models. So it can be used in practical mining activities.

采用采动岩体动态力学模型，对采动引起的覆岩移动破坏的时空规律进行了研究，结合兴隆庄矿5306工作面的地质、开采条件，对采动引起的断裂带发育发展规律，岩体内部离层发生发展规律、地表下沉规律等问题进行了分析，并对观测结果作出了较以前的各种理论模型更为符合实际的解释，该模型可在实际工作中得到很好地应用。

The relational model is a particular type of theoretical model: it is a data model.

关联模型是一种特定类型的理论模型：这是一个数据模型。

The fluid flow process in the model was analyzed,and the mathematical models for solving capillary pressure and relative permeability were set up.

分析了流体在模型中的流动过程，建立了求解毛细管压力和相对渗透率的数学模型，对模型进行求解后得到了与理论相符的结果。

At the same time, it presents three turbulence models (standard k-? model, Renormalization Group k -? model and Reynolds Stress Model) which have been used widely at present, and then their merits/shortcomings have been compared while being used to calculate swirling jets.

文中对目前应用较多的κ—ε模型、重正化群的κ—ε模型及雷诺应力模型进行了理论上的分析，经过对不同旋流强度的旋转射流的计算，比较了它们在实际求解中的优劣。

According to grey system theory, the long storage life of a resister is predicted using GM (1, 1) model and its improved model.

根据灰色系统理论，以某电阻器为例，应用GM(1，1)模型及其改进模型预测了其长期贮存寿命，所建立的模型具有较好的精度，有一定的参考价值。

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％。