New information on the types of Nanoparia pricei and Nanoparia luckhoffi are given in this paper. Differences between the two species recognised previously are disputed and a number of different distinguishing characteristics ...

Existing interpretations of the failure of resistance to the forced removal of Sophiatown in 1955 have been grossly inadequate. The emphasis has been on the political programmes and strategies of organised politics which ...

Frequency Control of large interconnected power systems is governed by means of Automatic Generation Control (AGC), which regulates the system frequency and tie line power interchange at its nominal parameter set points. ...

In this paper attention is drawn to the fact that the family Cynognathidae is as a whole very badly known and in need of taxonomic revision. Unfortunately the author had too little material available to attempt a proper ...

There has been an increase of attention placed on the diagnosis of Attention Deficit Hyperactivity Disorder (ADHD), within South Africa. This has led to a number of controversies surrounding the legitimacy of ADHD ...

The study presented in this thesis was motivated by the poor academic performance of many entrants to the School of Chemical and Metallurgical Engineering at the University of the Witwatersrand, Johannesburg, South Africa. ...

This dissertation reports systematic work aimed at determining the plastic deformation mechanisms that led to strains at fracture as high as 4.7% in WC-Co alloys at 1000°C when subjected to 3-point bending tests. The ...

The fracture toughness of polycrystalline boron suboxide has been substantially improved through the addition of a low amount of various sintering aids Determining the reasons behind the small amount of secondary phase ...