The study was done to understand the direction in which South Africa’s mining model is developed and the changes required for South Africa to take its rightful place in the mainstream spheres of economic and commercial ...
Background: Platinum refinery workers are exposed to various elements during the refining
process, with soluble platinum salts posing a potential health risk. Platinum salts are extremely
potent sensitisers that can ...
The gradual depletion of and dependence on fossil fuels, air pollution and global
warming have all accelerated the development of alternative energy systems which use
hydrogen as an energy carrier. The hybrid sulphur cycle ...
Semiconductor photocatalysis has received considerable attention in recent years as
an alternative for treating water polluted with hazardous organic chemicals. The
process, as a means of removal of persistent water ...
There has been an increased awareness of the inter-dependence between man and the environment since the 1960’s. Environmental awareness has evolved from representing fairly radical views opposing all development, to a ...
The recession of 2008/09 was the worst decline of global markets since the
Great Depression in the 1930's. Some international markets lost 30 - 50% of its
value in the period July to October 2008. The main reason for ...
The photocatalytic production of H2 from water as well as from a 1:1 methanol:water
solution employing pre–treated TiO2 and various Pt–TiO2 photocatalysts was studied by
using an Nd:YAG laser as irradiation source. The ...