【摘 要】
：
水质模拟与预测是评价和保护地下水工作中不可或缺的重要程序.由于地下水的储藏与运行特性及实际条件的限制,人们在对其进行观测时往往只能得到有限的监测结果,因此需要借助
论文部分内容阅读
水质模拟与预测是评价和保护地下水工作中不可或缺的重要程序.由于地下水的储藏与运行特性及实际条件的限制,人们在对其进行观测时往往只能得到有限的监测结果,因此需要借助已知点信息来对未知点水质空间分布特性进行估计.现行的空间变异性估计方法很多,使用何种方法可以获得对渗流污染物运移空间变异性的最优估计,成为研究的重要课题.本研究选取反距离加权法、趋势面法、普通克里格法以及方位-分维法作为研究对象,用其对所渗流弥散实验的监测样本在不同的样本密度下进行空间插值,通过各种方法的估值精度的对比,对其在渗流污染物空间估计中的的估计效果做出评价.
其他文献
在我国的公路桥梁施工之中，为了不断提升工程质量，保障人们群众的生命财产安全，需要从现场施工管理的实际出发，对施工中出现的质量问题进行细致分析，进而采取合理有效的措施加以控
分销渠道是企业完成其产品(服务)交换过程,实现价值、产生效益的重要载体,在企业的营销中具有重要的作用.从我国企业渠道管理的实践看,目前企业倍受困扰的问题是:如何才能实
In this paper, a comparison study was carried out to investigate the inlfuence of carbon content on the microstructure, hardness, and impact toughness of water-
In the paper, the effect of niobium addition on the microstructure, mechanical properties and wear resistance of high chromium cast iron has been studied. The r
In this study, Ce was introduced into the AZ80 alloy and the effects of Ce addition on the microstructure, mechanical properties and corrosion resistance of the
Bentonite is one of the most widespread used clays connected with various applications. In the case of foundry technology, bentonite is primarily used as a bind
Gravitational Potential Energy (GPE) change due to horizontal/isopycnal eddy diffusion and advection is examined. Horizontal/isopycnal eddy diffusion is concept
Gravitational potential energy (GPE) source and sink due to stirring and cabbeling associated with sigma dif-fusion/advection is analyzed. It is shown that GPE
Baozhu sand particles with size between 75 μm and 150 μm were coated by resin with the ratio of 1.5 wt.% of sands. Laser sintering experiments were carried ou
建立健全现代产权制度应当以马克思主义的产权理论为指导,必须排除和抵制西方资产阶级产权理论的错误引导。马克思主义产权理论为研究社会主义所有制中的产权问题提供了科学