内江师范学院学报
內江師範學院學報
내강사범학원학보
JOURNAL OF NEIJIANG TEACHERS COLLEGE
2012年
6期
18-21
,共4页
郑泽%严雳%王康红%吴开腾
鄭澤%嚴靂%王康紅%吳開騰
정택%엄력%왕강홍%오개등
偏微分方程%土壤%汞%污染源
偏微分方程%土壤%汞%汙染源
편미분방정%토양%홍%오염원
Partial differential equation(PDE)%Soil%Hg%the determination of pollution sources
利用偏微分方程建立了一种确定土壤表皮汞污染源的三维扩散偏微分方程模型.通过对数据进行回归得到扩散方程,从而确定污染源中心.该方法不但使污染源确定精度提高1.5%,而且得到了该地区汞污染浓度分布函数.
利用偏微分方程建立瞭一種確定土壤錶皮汞汙染源的三維擴散偏微分方程模型.通過對數據進行迴歸得到擴散方程,從而確定汙染源中心.該方法不但使汙染源確定精度提高1.5%,而且得到瞭該地區汞汙染濃度分佈函數.
이용편미분방정건립료일충학정토양표피홍오염원적삼유확산편미분방정모형.통과대수거진행회귀득도확산방정,종이학정오염원중심.해방법불단사오염원학정정도제고1.5%,이차득도료해지구홍오염농도분포함수.
By use of the partial differential equation, a three dimensional PDE model is established for the determination of the mercury polluter source in the surface soil. The diffusion equation is worked out by performing regression on the collected data and thus the maximum point of the equation is obtained, which is the final center of the polluter source. The said meth- od not only enhances the accuracy by 1.5 %, but also helps acquire the concentration distribution function of mercury pollution in the region.