Now showing items 1-10 of 113
Lipid peroxidation and ageing in seeds of cabbage and soya bean.
It has been suggested that lipid peroxidation is involved in the loss of seed vigour, although many attempts to examine the relationships between lipid peroxidation and seed vigour have proved equivocal. Studies were ...
A real time fluorescent particle counter for atmospheric dispersion studies.
No abstract available.
Spatial concept development and the teaching of geography in primary schools.
Until recently educational geographers have concerned themselves largely with questions regarding those parts of the discipline which should be included in school and university curricula (Fitzgerald, 1969; Thomas, ...
A Study of boiling parameters under conditions of laminar non-Newtonian flow with particular reference to massecuite boiling.
Crystallization is done in the sugar industry using natural circulation vacuum evaporative crystallizers known as vacuum pans. the fluid which is known as massecuite consists of a suspension of crystals in concentrate ...
Utilisation of bagasse for the production of C5- and C6- sugars.
Surplus sugarcane bagasse, estimated at a maximum of 0,9x106 tons/year, represents an annual renewable resource which is readily available at the mill site and is a suitable potential source of alternative fuels and ...
The solid state reduction of chromite.
High carbon ferrochromium serves as the main chromium source for almost all chromium containing steel alloys. The traditional method for the production of high carbon ferrochromium via the reduction of chromite using ...
The crossfield current-driven ion acoustic instability in a two-ion plasma.
The behaviour of the crossfield current-driven ion acoustic instability in a plasma containing two ion species is theoretically examined. In our model the electrons are assumed to be hot and the ions cold, i.e. Tₑ »Tᵢ (~ ...
Social ecology of Otomys irroratus, Rhabdomys pumilio and Praomys natalensis.
This work sets out to describe the socio-ecological niches of otonya irroratus, Rhabdomys pumilio and Praomys natalensis in the Natal midlands. This objective necessitated a broad-based approach in which aspects of ...
Aspects of the ecology and exploitation of the fishes of the Kosi Bay system, KwaZulu, South Africa.
ln this study the exploitation of the fish fauna of the Kosi estuarine system by man and natural predators is described and estimates made of the off-take and its species composition. The most important ...
A study of the bearded vulture Gypaetus barbatus in southern Africa.
The Bearded Vulture Gypaetus barbatus has experienced a substantial decrease in range in southern Africa during this century. The present population, numbering about 200 pairs, is confined mainly to ...