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"Wagging the dog": How service delivery can lose its way in the procurement maze -- and could find it again

Author: Wall, K ; Watermeyer, R ; Pirie, G Date: Sep 2012 Supply 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
'Wagging the dog': supply chain management and service delivery

Author: Wall, K ; Watermeyer, R ; Pirie, G Date: Sep 2013 SUPPLY 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
Wake up to fatigue risk management

Author: Schutte, PC Date: Jun 2009 There 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
Walk the talk on the mainstreaming of non-motorised transport in South Africa

Author: Labuschagne, FJJ ; Ribbens, H Date: Jul 2014 In 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
Walking and the social life of solar charging in rural Africa

Author: Bidwell, NJ ; Siya, M ; Marsden, G ; Tucker, WD ; Tshemese, M ; Gaven, N ; Ntlangano, S ; Robinson, S ; Eglington, KA Date: Sep 2013 The authors consider practices that sustain social and physical environments beyond those dominating sustainable HCI discourse. They describe links between walking, sociality, and using resources in a case study of community-based, solar, ... Read more
Walking the village: LiveDiverse – Sustainable livelihoods and biodiversity in developing countries

Author: Nortje, Karen ; Funke, Nicola S ; Jacobs-Mata, Inga M ; Steyn, Maronel ; Claassen, Marius Date: Jan 2011 LiveDiverse 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
Wall heat flux influence on the thermodynamic optimisation of irreversibilities of a circulating fluidised bed combustor

Author: Baloyi, J ; Bello-Ochende, T ; Meyer, JP Date: Jul 2016 In 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
Wall heat transfer coefficient in a molten salt bubble column: testing the experimental setup

Author: Skosana, PJ ; Van Vuuren, DS ; Heydenrych, MD Date: Oct 2014 One 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
Want to improve the ROI on your next PV project?

Author: Pratt, Lawrence E Date: Dec 2019 Under-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
Ward based community road safety performance benchmarking, monitoring and intervention programmes in the City of Johannesburg

Author: Ribbens, H ; Pillay, S Date: Jul 2008 The 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
Warm temperature (170-280°C) uniaxial compresion of SiC reinforced MMCs

Author: Gxowa, Zizo ; Chown, LH ; Govender, Gonasagren Date: Oct 2017 This 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
Waste a necessary evil for economically impoverished communities in least developed countries (LCDc): a case study

Author: Mvuma, G Date: Oct 2010 The 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
Waste as a Resource in Africa

Author: Janse van Rensburg, R Date: Oct 2017 The presentation is about the the waste as a resource in Africa. Read more
Waste as a resource – Opportunities in Africa

Author: Oelofse, Suzanna HH ; Nahman, Anton Date: Oct 2018 It 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
Waste as a resource: Opportunities in Africa [journal article]

Author: Oelofse, Suzanna HH ; Nahman, Anton Date: May 2019 It 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
Waste as resource: Unlocking opportunities for Africa

Author: Oelofse, Suzanna HH ; Nahman, Anton ; Godfrey, Linda K Date: Jun 2018 The 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
Waste characterisation, determining the energy potential of waste

Author: Oelofse, Suzanna HH Date: Nov 2015 The presentation on waste characterisation, determining the energy potential of waste. Read more
Waste governance

Author: Oelofse, Suzanna HH Date: Jun 2018 The focus of this chapter is on the enabling governance environment to support sustainable waste management systems in Africa. The introduction section provides background on what is meant by governance and good governance and the status of ... Read more
Waste management in South Africa: Institutional and legal discords a call for Constitutional and related laws’ reform

Author: Nhamo, G Date: Nov 2008 Great efforts have been made towards environmental and/ or waste management law reform and harmonisation in South Africa. However, much discord still remains. Such discord emerges from the Constitution and other environmental laws that fail ... Read more
Waste management service delivery to all

Author: Afrika, M ; Oelofse, Suzanna HH ; Strydom, W ; Mvuma, G ; John, J Date: Oct 2010 One of the major challenges facing municipalities in South Africa is ensuring that all households within their areas of jurisdiction are provided with a basic level of waste service (DEAT, 2007). Huge waste service backlogs still exists in ... Read more

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