We present a corrected operator splitting COS method for solving nonlinear parabolic equations of convection di usion type The main feature of this method is the ability to correctly resolve nonlinear shock fronts for large time steps as opposed to standard operator splitting OS which fails to do so COS is based on solving a conservation law for modeling convection a heat type equation for mode...

A NUMBER of reports on normal ranges of corrected orthogonal electrocardiographic measurements have appeared in the literature.'-12 They were derived, however, from limited numbers of subjects and the types of electrocardiographic and vectorcardiographic measurements varied largely from one study to another. The reported results are therefore not always strictly comparable. In spite of these li...