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Extractives from Neobeguea mahafalensis and Cedrelopsis grevei.
Neobeguea mahafalensis Leroy. and Cedrelopsis grevei Baill. are the two Madagascan species which were investigated in this work. Neobeguea mahafalensis Leroy. belongs to the Neobeguea genus of the Meliaceae family and is ...
Sedimentology, coral reef zonation, and late Pleistocene coastline models of the Sodwana Bay continental shelf, Northern Zululand
This geostrophic current-controlled Zululand/Natal shelf displays a unique assemblage of interesting physical, sedimentological and biological phenomena. The shelf in this area is extremely narrow compared to the global ...
A study of the phenomenon of bridging of sugarcane bagasse
This work reports the results of a systematic study of the factors that affect the bridging behaviour of bagasse. It shows that traditional bulk solids theory is inappropriate for predicting bagasse flow mainly because ...
Numerical cavity-resonance modelling of impulse excited Pi 2 pulsations in the magnetosphere.
A magnetohydrodynamic (MHD) cavity-resonance model is developed to study the ultra low frequency (ULF) response in the magnetosphere to an external compressional impulse. It is assumed that the magnitude of the impulse is ...
Measurement and thermodynamic interpretation of high pressure vapour-liquid equilibrium data.
.. Detailed experimental and thermodynamic studies of. the isothermal phase equilibria for the
A mechanistic evaluation and design of tunnel support systems for deep level South African mines.
The design of support systems, comprising rock bolt reinforcement and fabric containment components for tunnels in deep level mining environments does not currently cater well for adverse rock mass conditions. This often ...
The evolution and socio-ecology of two populations of the Vlei Rat, Otomys irroratus.
This work investigated two important evolutionary processes - speciation and adaptive variation - in two chromosomally-distinct allopatric Natal Midlands populations of the vlei rat Otomys irroratus. The two populations, ...
Antioxidant activity of Maillard reaction products.
The use of natural antioxidants to improve the oxidative stability of food lipids has received special attention because of the worldwide trend to avoid the use of synthetic food additives. A wide range of natural sources ...
Investigation of conceptual and language difficulties affecting the understanding of several mechanics concepts among some African teachers and students.
The results of national examination in matric and universities showed that African students were performing very poorly in their studies and examinations in science and in physics in particular. The objective in this ...
Micropropagation and in vitro studies of Pinus patula Scheide et Deppe.
For the South African forestry industry, the patula pine (Pinus patula) is the most commercially important softwood species. A pine clonal programme has yet to be fully implemented in this country and at present much effort ...