Author:Lusher, JADate:Dec 1984Water quality criteria reflecting the needs of the South African coastal zone are presented for beneficial uses encompassing maintenance of ecosystems, recreation, ocean migration, edible and non-edible resources, desalination, mineral ...Read more
Author:Netterberg, F; Paige-Green, PhilDate:Jul 1988The requirements of and some specifications for wearing courses for unpaved roads are reviewed. It is concluded that further development of specifications is required, and that there is probably great scope for improvement of our unpaved roads ...Read more
Author:Van Doornum, GAW; Van Eeden, GSDate:1962During 1959 it was observed that anthracite stored at the Bluff, Durban, discolored apparently while awaiting shipment.Read more
Author:Savage, WHDDate:1951The object of the investigation was to study the effect of weathering by exposure to the open air on the coking and chemical properties of the coal.Read more
Author:Heinecken, TJEDate:Aug 1985In this report available historical information on Wildevoelvlei or Noordhoek estuary and abiotic and biotic characteristics found in the estuary are presented. It also describes a system in which there is no major river feeding an estuary. ...Read more
Author:Stafford, William HL; De Lange, Willem JDate:May 2018The overall aim of this project is to develop a pre-feasibility guideline that can be used as an opportunity analysis for the FTTP industry. The guideline will focus on two major waste streams generated by the sector viz. sawdust and sludge. ...Read more
Author:Van der Merwe, JPDate:Mar 1984Pure wool yarns may be produced on either the woollen or worsted system of manufacture. To the uniformed both will be described as woollen yarns. A distinction must, however, be made between end products produced from either woollen spun yarns ...Read more
Author:Jonker Klunne, W; Michael, EDate:2013The East African region comprises 20 countries, 14 of which use small hydropower at various degrees. The East African Power Pool (EAPP) plays an important role in the future of energy within the region. One of the main objectives of EAPP is ...Read more
Author:Jonker Klunne, WDate:2013Lesotho does not have any known indigenous sources of oil, coal or natural gas. About three quarters of its total energy demand is met by biomass fuels in the forms of wood, shrubs, animals manure and agricultural residues. The only other ...Read more
Author:Jonker Klunne, WDate:2013The total installed electricity capacity in Mozambique is 2.308 GW in 2009, nearly all generated exclusively from hydropower (99.7 per cent). Mozambique has large reserves of coal. There are utilizable reserves of natural gas that might be ...Read more
Author:Jonker Klunne, WDate:2013South Africa has a total electricity generation capacity of about 45,000 MW. Nearly 90 per cent of electricity is generated in coal-fired power stations. Koeberg, a large nuclear station near Cape Town, provides about five per cent of capacity, ...Read more
Author:Jonker Klunne, W; Michael, EDate:2013The Southern African region comprises five countries, of which Lesotho, Namibia, Swaziland and South Africa use small hydropower, with Namibia currently having a very limited use of this technology. Botswana does not possess any hydropower ...Read more
Author:Jonker Klunne, WDate:2013Power in Swaziland is supplied and distributed by the Swaziland Electricity Company (SEC), which was established in 2007 by the Swaziland Electricity Company Act. SEC currently has a monopoly on the import, distribution and supply of electricity ...Read more
Author:Jonker Klunne, WDate:2013In rural Zimbabwe, 80-90 per cent of people are heavily dependent on wood fuel. Rural populations light their homes with kerosene and carry out essential food processing tasks such as milling grain, using diesel powered systems. Access to ...Read more
Author:Brydon, AG; Van der Merwe, JPDate:Feb 1986A wrap yarn is a composite structure comprising a core of twisted or twisted fibres bound by a yarn or continuous filament. The term wrap yarn therefore include yarns produced by the hollow spindle method as well as similar structure such as ...Read more
Author:Bickerton, IBDate:Dec 1982This report provides historical information on the Zeekoevlei. The Zeekoe canal at present constitutes a public health hazard, particularly where it passes under the Baden Powell Drive bridge and flows across the beach into the sea. Drainage ...Read more