形式模型

It is shown that the parameterized model potential method of included polarization correction is effective to calculate photoionization cross sections.

使用参数形式的极化模型势计算光电离截面是一种有效的方法。标签光电离截面模型势波函数 photoionization cross section model potential wave function

Four ribbon pontoon bridge models are taken as experimental objects,which were made with FRP/steel composite structure.

本文采用玻璃钢/钢材复合结构形式的4折带式舟桥模型为试验对象，对每两个方舟模型互相连接后进行竖向加载试验。

At the last of the chapter, the general formulation of stochastic programming for dynamic portfolio selection is given. It is the basis of other models in this dissertation.

本章最后给出了用于动态投资组合选择的随机规划模型的一般形式，它是本文其它模型的基础。

Based on the power series expansion of the general flexible matrix of the sub-system, a general expression of the dynamic stiffness matrix of the reduced model was derived from the exact expression of the reduced model for the direct substitution dynamic condensation methods. The general expression was also expressed as a power series of the unknown eigenvalues. After that, the validity and error of the Guyan condensation method were analyzed.

对于动力缩聚直接代入法，本文从降阶模型的精确表达式出发，利用子系统广义柔度矩阵的幂级数展开式，导出了降阶模型动刚度矩阵的一般表达，并把它表示为未知特征值的幂级数形式，在此基础上对 Guyan缩聚法的适用范围和误差进行了一般分析。

The mathematical model of coal-bed methane seepage is established considering slipped effect, giving the weak form of the differential equation based on the principle of virtual displacement, hereby writing FEPG program. Using FEPG system's all the source program of the finite element which considers the mathematical model of coal-bed methane seepage of slip effect the numerical solution is sought.

建立考虑滑脱效应的煤层气渗流数学模型，给出了基于虚位移原理的微分方程的弱形式，据此编写了FEPG程序，利用FEPG系统生成了考虑滑脱效应的煤层气渗流数学模型有限元问题的全部Fortran源程序，并进行了数值求解。

The following conclusions are made in this paper. First, in the 3D FEA analyses of a tubesheet, neglecting the local influence of contact problem, the stress distribution of two models are similar.

本文得到如下结论：（1）对兼法兰形式的管板做三维有限元应力分析时，在忽略接触等问题的局部影响下，非线性模型和简化模型的应力计算结果相近。

This paper describes the data model of the complex product configuration in UML language,and establishes a practical data model.

以UML描述的形式对复杂配置产品的数据模型进行了探讨，提出了具有实践意义的数据模型。

By using testing functions to make comparative research on the precision of approximate models which were built by RBF under the condition of different sample amounts and different kernel function types, a conclusion was drawn: the model quality built by Reciprocal Multiquadric RBF as kernel function was highest when the sample amout was big, and the model quality built by Gaussian RBF as kernel function was highest when the sample amount was small.

运用测试函数对在不同样本数量与不同核函数形式下所建立的近似模型的精度进行对比研究，得出逆多二次函数与高斯函数作为核函数分别在大样本和小样本情况下精度最高的结论，并验证了径向基函数近似模型方法能够兼顾效率与精度。

Two linear objective programming models are established under the situations where the decision maker has preference information on alternatives, which takes the form of reciprocal judgement matrix and complementary judgement matrix respectively, and a method based on the models is presented for ranking alternatives in MADM.

在决策者对方案的偏好信息以互反和互补判断矩阵这两种形式给出的情况下，分别建立了一个线性目标规划模型，并提出了一种基于线性目标规划模型的多属性决策法。

Based on filtering theory, a residual life predict model is set up according to condition information, and a general formula of parameter estimation is deduced using maximum likelihood estimation, thus, when the life distributing of an equipment is known, the model can be rapidly educed by taking the distribution into the formula is educed, and its residual life can be predicted without complex iterative process is predicted.

利用滤波理论，建立了基于状态信息的剩余寿命预测通用模型，并推导出采用极大似然估计法下参数估计的通式，使得在已知寿命服从其他任何分布形式时直接代入通式便可快速地得出其模型，从而预测其剩余寿命，省去了复杂繁琐的迭代过程。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新