a new mathematical model for identifying pollution sources in aquifers is presented. the model utilizes lagrange constrained optimization method (lcom) and is capable to inversely solve unsteady fluid flow in saturated, heterogeneous, anisotropic confined and/or unconfined aquifers. throughout the presented model, complete advection-dispersion equation, including the adsorption as well as retar...

Fiscal and local content policies aimed at promoting linkages between mining other economic sectors have been informed by theories built on historical observations dating back to the 1950s. This paper contends that there is a need rethink about mining-based prospects for structural change based an improved understanding of existing potential inter-sectoral linkages. Using input–output tables Ta...

This paper describes a method for cloning faces from two orthogonal pictures and for generating populations from a small number of these clones. An e cient method for reconstructing 3D heads suitable for animation from pictures starts with the extraction of feature points from the orthogonal picture sets. Data from several such heads serve to statistically infer the parameters of the multivaria...

A multiple hypothesis tracking approach to the segmentation of small 3D vessel structures is presented. By simultaneously tracking multiple hypothetical vessel trajectories, low contrast passages can be traversed, leading to an improved tracking performance in areas of low contrast. This work also contributes a novel mathematical vessel template model, with which an accurate vessel centerline e...

Salmet introduced a notion of hypothetical knowledge and showed how it could be used to capture the type of counterfactual reasoning necessary to force the backwards induction solution in a game of perfect information. He argued that while hypothetical knowledge and the extended information structures used to model it bear some resemblance to the way philosophers have used conditional logic to ...