排序方式: 共有1条查询结果,搜索用时 31 毫秒
1
1.
ABDON ATANGANA 《Journal of Earth System Science》2014,123(1):101-108
This paper examines a possible effect of uncertainties, variability or heterogeneity of any dynamic system when being included in its evolution rule; the notion is illustrated with the advection dispersion equation, which describes the groundwater pollution model. An uncertain derivative is defined; some properties of the operator are presented. The operator is used to generalize the advection dispersion equation. The generalized equation differs from the standard equation in four properties. The generalized equation is solved via the variational iteration technique. Some illustrative figures are presented. 相似文献
1