integration n. 1.结合;综合;一体化。 2.【心理学】整合(作用)。 3.【数学】积分(法) (opp. differentiation)。 4.【经济学】(产业的)集中。 5.〔美国〕取消种族隔离;给以种族上的平等待遇。 integration by parts 【数学】部分积分法。
The details of the construction and characteristics of the new finite - difference scheme are presented in this thesis , by using both the integration theorem and the taylor expansion theory . it is proved that the new approach has the second - order accuracy on the grids with axis - symmetric voronoi cells and at least has the first - order accuracy in general . according to this character of the scheme and the computational requirements of the finite - difference approach , a striping procedure is involved to decompose the velocity model into variable spatial size grids with a nearly constant tune step preserved 本文从积分定理和taylor展开两个角度,详细分析了基于voronoicell的非规则网格有限差分算法的构造过程及性质,并且在理论上证明了本文的差分方法的精度与网格形状的关系:当voronoicell为关于节点的轴对称图形时,本文差分方法具有二阶精度;在一般的网格上,则至少具有一阶精度。