Author:Wall, K; Watermeyer, R; Pirie, GDate:Sep 2012Supply chain management (SCM) regulations for public sector procurement of goods and services have greatly improved the transparency of procurement procedures, increased the opportunities for alternative suppliers, and reduced the potential ...Read more
Author:Wall, K; Watermeyer, R; Pirie, GDate:Sep 2013SUPPLY CHAIN management (SCM) regulations for public sector procurement of goods and services have greatly improved the transparency of procurement procedures, increased the opportunities for alternative suppliers and reduced the potential ...Read more
Author:Schutte, PCDate:Jun 2009There have been several high-profile accidents in industry where fatigue was identified as either causal or contributory. The risk of fatigue is inherent in any worktime arrangement involving shift work, long hours of work, irregular hours, ...Read more
Author:Labuschagne, FJJ; Ribbens, HDate:Jul 2014In South Africa, the integration of Non-Motorised Transport (NMT) facilities into spatial development and the streetscape has not yet received sufficient attention by the different spheres of government and their implementation agencies. ...Read more
Author:Nortje, Karen; Funke, Nicola S; Jacobs-Mata, Inga M; Steyn, Maronel; Claassen, MariusDate:Jan 2011LiveDiverse is a multi-year, multi-country collaborative research project that focuses on the interface between livelihoods and biodiversity of people in rural communities who live in or in the vicinity of a biodiversity ‘hotspot’. Five ...Read more
Author:Baloyi, J; Bello-Ochende, T; Meyer, JPDate:Jul 2016In the study the comparison of irreversibilities was done when the wall condition of the combustor was changed from adiabatic to negative heat flux, for incoming air temperature of 400 K. The reactant mixture of solid pitch pine wood fuel and ...Read more
Author:Skosana, PJ; Van Vuuren, DS; Heydenrych, MDDate:Oct 2014One of the advantages of bubble columns is high heat transfer rates. High heat transfer is important in reactors when high thermal duties are required. An appropriate measurement of heat transfer coefficient is of primary importance for ...Read more
Author:Pratt, Lawrence EDate:Dec 2019Under-performance of a solar PV plant can have a negative impact on the financial returns for investors, owners, and insurers. The factors contributing to under-performance fall into four categories: overly optimistic prediction models, ...Read more
Author:Ribbens, H; Pillay, SDate:Jul 2008The current road safety situation in the City of Johannesburg is a major concern to the city authority. More than 120 000 road accidents (on average about 330 accidents per day) occur every year leading to about 600 fatal and 16 000 injury ...Read more
Author:Gxowa, Zizo; Chown, LH; Govender, GonasagrenDate:Oct 2017This work evaluates the effect of warm temperature (170-280°C) uniaxial compression on the deformation behaviour of SiC reinforced Metal Matrix Composites (MMCs). Green and sintered compacts (d=8mm, h=12mm) were produced by blending 2124-Al ...Read more
Author:La Grange, CC; Wolmarans, JJDate:1950According to information given by the Manager at navigation Colliery in May 1950, the mining height in the No. 5 seam is about 6 feet at the top of this consist of inferior material and is loaded into separate, specially marked tubs underground ...Read more
Author:La Grange, CC; Wolmarans, JJDate:1950A bulk face sample (no. T124) of approximately 1 ton was taken on 12/4/1950 from the No. 5 seam, South African Witbank colliery at a point about 70 east of a point 100 south of peg 104. The seam here was about 69'' thick.Read more
Author:La Grange, CC; Wolmarans, JJDate:1950This report details how coal from the No. 5 seam in the Witbank colliery was tested for washability and related characteristics.Read more
Author:Mvuma, GDate:Oct 2010The nexus of rapid population growth and improved socio-economic status of a country have been established as having a close correlation to increasing quantities of wastes generated per capita. Various studies show that waste harvesters ...Read more
Author:Oelofse, Suzanna HH; Nahman, AntonDate:Oct 2018It is estimated that 125 million tonnes of municipal solid waste is generated in Africa, of which only about 68 million tonnes are collected. Unsanitary landfilling and open dumping of the collected waste is the predominant waste disposal ...Read more
Author:Oelofse, Suzanna HH; Nahman, AntonDate:May 2019It is estimated that 125 million tonnes of municipal solid waste is generated in Africa, of which only 68 million tonnes is collected. Unsanitary landfilling and open dumping of collected waste are predominant waste disposal options in many ...Read more
Author:Oelofse, Suzanna HH; Nahman, Anton; Godfrey, Linda KDate:Jun 2018The global waste sector is undergoing a paradigm shift from “waste” to that of “secondary resource” within the vision of a circular global economy. The circular economy emphasizes keeping resources in use for as long as possible through re-use, ...Read more