查询词典 model theory

Numerical methods based on the continuum hypothesis and molecule kinetic theory are performed to investigate the gaseous flow in the microchannels. The validity of different boundary conditions based on continuum model is examined by DSMC method under different Knudsen number. It is found that the impact of rarefied and compressibility effects are different.

针对微槽道中气体流动的特征，分别采用连续介质模型和分子运动模型简要分析了连续介质模型中不同滑移边界条件的适用范围，并总结出稀薄效应对槽道中压力的的影响和可压缩效应的作用趋势是相反的。

The basic theory of active contour model is studied in this paper.

研究了活动轮廓模型的基础理论模型。

People pay more attention to the research of state space model recently because of the development of modern control theory.

近些年来，由于现代控制理论的发展，状态空间模型的研究越来越受到人们的重视。

The vector control theory and its decoupling are introduced on the foundation of the mathematical model of asynchronous motor.

论文在异步电动机数学模型的基础上，介绍了矢量控制理论及其解耦性质。

On base of the theory of polymeric melt filling flow in micro injection molding , the mechanism of convectional heat transfer for polymeric melt was discussed,and the effects of convectional heat transfer on the melt filling flow in micro injection molding were investigated with considering the model of convectional heat transfer coefficient.

在熔体流动理论的基础上，通过分析熔体的对流传热机理，并引入对流换热系数模型，对微注塑成型中对流换热系数对熔体充模流动进行了研究。

Stability and convergence of the model are proven by means of the weak convergence theorem of generalized function and the convolved integration theory.

由广义函数弱收敛定理和卷积理论，证明所提出的非局部连续模型具备收敛性和稳定性。

In this dissertation, we study some fundamental issues on whether there exists arbitrage in the complicated finical market by employing no-arbitrage approach, optimization theory and convex analysis, and establish some ar-birage pricing model.

本文应用金融学的无套利分析方法并结合优化理论和凸分析等数学工具，研究复杂多变的金融市场中是否存在套利等基本问题，建立了一些新的套利定价模型。

Based on the theory of heat and mass transfer for film type cooling, a mathematical model for the velocity distribution of a thin water film, the equations of mass and heat transfer, and evaporation cooling controlled by the latent heat transfer were established.

基于膜状冷却热、质传递机理，建立水膜薄层的速度分布，热、质传递方程和潜热蒸发冷却控制的数学模型。

The coordinate transformation. asynchronous machine＇s mathematical model as well as the fuzzy control theory.

坐标变换。异步电机的数学模型以及模糊控制理论。

The paper is based on the rupture-dynamical theory and DNV RP-F101 recommendatory method, through the study of three corrosion models, we have built up rational estimation model, adopted subentry safety coefficient method and allowed stress method to estimate the remaining strength of corrodent pipelines, and finally, introduced the Genetic Algorithms method to compute the reliability of corrodent pipelines, gaining the reliability index, and provided corresponding program.

本文以断裂力学理论为基础，以 DNV RP-F101 腐蚀管道评估的推荐作法为蓝本，通过对管道腐蚀损伤的三种腐蚀形式具体研究，建立了合理的评估计算模型，采用了分项安全系数法和许用应力法对腐蚀管道的剩余强度进行了失效压力的计算，最后较详细的介绍了遗传算法的基本理论，并把它应用到对腐蚀管道的进行可靠性评估中，得出其可靠性指标，并给出了相应的计算程序。

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。