Author:Van der Walt, PJDate:1949The problem of predicting practical yield and ash values when washing coal in a specified type of washer based on float and sink data obtained from laboratory tests is discussed in this report.Read more
Author:Vorster, J; Van Heerden, Renier PDate:Mar 2015Graphical passwords schemas are becoming more main-stream. There are many different approaches to graphical passwords, each with its own drawbacks and advantages. There has been many studies to suggest that graphical passwords should be ...Read more
Author:Govender, Natasha; Claassens, JDate:Nov 2010For a robotic platform to be able to assist/interact in human environments, the platform must be able to perform some fundamental tasks. This includes interacting with humans by grasping or releasing objects as or when required by the human. ...Read more
Author:Greben, HA; Sigama, NJDate:Nov 2008The biological sulphate removal technology requires carbon and energy sources to reduce sulphate to sulphide. Plant biomass, e.g. grass, is a sustainable source of energy when cellulose is utilised during anaerobic degradation, producing ...Read more
Author:Unsted, ADDate:Feb 1997Prior to the introduction of gravimetric dust sampling, konimeters had been used for dust sampling, which was largely for control purposes. Whether or not absolute results were achievable was not an issue since relative results were used to ...Read more
Author:Lück-Vogel, Melanie; Pieterse, Amy; Van Niekerk, Cornelia WDate:Sep 2022The Green Book is as an open-access online planning tool to support local government towards climate-resilient cities and towns in South Africa (www.greenbook.co.za). It was launched in 2019. Extensive research and development took place to ...Read more
Author:Lück-Vogel, MelanieDate:Sep 2022The Green Book is as an open-access online planning tool to support local government towards climate-resilient cities and towns in South Africa (www.greenbook.co.za). It was launched in 2019. Extensive research and development took place to ...Read more
Author:Van Niekerk, Cornelia WDate:Sep 2016The purpose of this IDRC funded project is to the develop a set of guidelines by March 2019 – called the Green Book – to adapt existing and future South African settlements to climatic changes. The Green Book is to be used as a planning and ...Read more
Author:Van Wyk, Llewellyn VDate:Dec 2016Although not explicitly stated, green A. rating systems fundamentally aim to improve building performance albeit with a bias toward environmental issues. Thus LEED promotes its system as being "resource efficient"reducing water and energy use ...Read more
Author:Van Wyk, Llewellyn VDate:Dec 2017Over the years the Green Building Handbook has increased its scope beyond the confines of "green building" as typically defined in green building rating systems. This is largely due to the recognition that building green, or more accurately, ...Read more
Author:Van Wyk, Llewellyn VDate:Feb 2019At a higher level the quality of infrastructure in South Africa continues to deteriorate and achieving sustainable infrastructure in the light of increasing demand is a key requirement for improving the quality of life of our people. A chapter ...Read more
Author:Van Wyk, Llewellyn VDate:Nov 2010Construction is responsible for 50 per cent of all resources consumed in the world making it one of the least sustainable global industries. Although it is difficult to quantify, largely due to the highly variable amount of waste generated ...Read more
Author:Van Wyk, Llewellyn VDate:Nov 2010The pursuit of sustainable development brings the construction industry, and specifically the building industry component thereof, into sharp relief. The built environment is a major component of contemporary life. Over half the world’s ...Read more
Author:Van Wyk, Llewellyn VDate:Nov 2010Infrastructure is one of the key foundations of economic growth. South African cities have grown on the back of infrastructure investments like water, energy, transportation and increasingly telecommunications. Ultimately infrastructure ...Read more
Author:Brady, D; Dube, N; Petersen, RLDate:Sep 2006The application of highly substrate-specific catalysts, such as biocatalysts, can reduce the number of synthetic steps required to generate organic compounds. A wide range of bacteria and yeast cultures were enriched on nitriles as the sole ...Read more
Author:Brady, D; Dube, N; Petersen, RDate:28 Feb 2006Nitrile substrate profiles were determined for a wide range of microorganisms. Isolated bacteria and yeast were enriched on nitriles as the sole nitrogen source. Aliphatic and aromatic nitriles were investigated, as well as structurally related ...Read more
Author:Van Wyk, Llewellyn VDate:Oct 2012In this presentation the author outlines how innovative and alternative building technologies can be used to support the transition towards a low-carbon economy.Read more
Author:Musvoto, Constansia D; Nortje, Karen; Nahman, Anton; Stafford, William HLDate:Jan 2019Focusing on agriculture, this book analyses a developing country green economy implementation context and provides a practical framework for implementing crop production green economy projects. The book addresses a distinct gap as currently ...Read more
Author:Bischof-Niemz, TDate:Sep 2015This presentation looks at the status of the South African energy industry today. Solar PV & wind are the cheapest new-build options per kWh in South Africa, and cost competitiveness of renewables has two consequences: 1) distributed power ...Read more