The main research content is as follows:(1) Reduced collocation response surface model (RCRSM) is constructed using polynomial chaos expansion (PCE) with points of monomial cubature rule (MCR).
主要研究内容如下：（1）基于单项式容积法和混沌多项式展开，构造了简约配点响应面模型。
2
Fitting orthogonal polynomial method for characterizing the functional relationship between the dry density and moisture contentof earth-fill in standard compaction test is presented.
提出了描述标准击实试验中土料干密度和含水量之间函数关系的拟合正交多项式方法。
3
With the same irrigation amount, the increasing of nitrate nitrogen content both in the soil and groundwater has the polynomial correlation with groundwater table.