Hierdie navorsing is ’n omvattende studie in die hedendaagse verplecgonderwys met die klem op die onafhanklike benadering tot leer. Unisa word uitgeken as een van die eerste universiteite in die wêreld om teletuisie in tersiêre onderrig in te stel. Dit is ook die heel eerste universiteit om afstandsonderrig in te stel as nabasiese voortgesette onderrig vir geregLstreerde verpleegkundiges op die...

The description of geophysical granular flows, like avalanches and debris is a challenging open problem due to the high complexity dynamics, which characterized by various momentum exchange mechanisms strongly coupled with solid volume fraction field. In order capture rich variability dynamics along avalanche depth, we present well-posed multilayer model, where layers, made same material, are a...

Two-dimensional Euler equations have been solved on an unstructured grid. An upwind finite volume scheme, based on Roe's flux difference splitting method, is used to discretize the equations. Using advancing front method, an initial Delaunay triangulation has been made. The adaptation procedure involves mesh enrichment coarsening in regions of flow with high low gradients of flow properties, ac...

Explosions occur in military conflicts as well as in various industrial applications. Air blast waves generated by large explosions move outward with high velocity, pressure and temperature. The blast waves not only incapacitate military and civilian personnel, but also damages buildings, vehicles, and other properties. Hence, there has been extensive research on how to mitigate blast wave effe...

A numerical technique, composed of the Van Leer-Tai-Powell optimization and a modified procedure, is applied to design multistage schemes that give optimal damping of high frequencies for given upwind-biased spatial differencing with implicit and explicit residual smoothing. The analysis is done for a scalar convection equation in one space dimension. The object of this technique is to make the...

The finite volume methods are one of the most popular numerical procedure to approximate the weak solutions of hyperbolic systems of conservation laws. They are developed in the framework of first-order numerical schemes. Several approaches are proposed to increase the order of accuracy. The van Leer methods are interesting ways. One of them, namely the MUSCL-Hancock scheme, is full time and sp...