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
Author:Johakimu, Jonas K; Bush, T; Lucia, LDate:Feb 2011The effect of green liquor pre-treatment (GLP) on Kraft pulping of Pinus Patula has been investigated. Wood chips were pre-treated with green liquor, and subsequently subjected to Kraft pulping to achieve a target Kappa number of 65-70. The ...Read more
Author:Van Wyk, Llewellyn VDate:Apr 2010Green roofs are roofs that have been covered with a growing medium, creating a habitat on what would otherwise be a bland, lifeless surface. It is for this reason that green roofs are sometimes call 'vegetated' or 'living' roofs (Cantor 2008). ...Read more
Author:Schoeman, C; Sanchez, VRDate:Jul 2009This paper investigates status quo concerning the environment and the human (economic) impact on its sustainability. It narrows in on the South Africa context and then focuses on the transport and supply chain's contributions. Green supply ...Read more
Author:Ittmann, HDate:Jan 2011This article is not a comprehensive overview of green logistics. What it endeavours to do is to sensitise, in a very summarised way, those involved in logistics and supply chain management about the importance of green logistics and to highlight ...Read more
Author:Van Wyk, Llewellyn VDate:Mar 2014Green infrastructure can be defined as the design and development of infrastructure that works with natural systems in the performance of its functions. Green infrastructure recognises the importance of the natural environment in land use ...Read more
Author:Scholes, RJ; Van der Merwe, Martina RDate:May 1996South African greenhouse gas emissions contributed about 1.2% to the global increase in the greenhouse effect in 1988. South Africa generated trace gases with a radiation absorption potential over a 20-year period equivalent to 534 million ...Read more
Author:Jagarnath, M; Thambiran, TirushaDate:Aug 2017Because current emissions accounting approaches focus on an entire city, cities are often considered to be large emitters of greenhouse gas (GHG) emissions, with no attention to the variation within them. This makes it more difficult to ...Read more
Author:Nickless, A; Ziehn, T; Rayner, PJ; Scholes, RJ; Engelbrecht, FDate:May 2014This is the second part of a two-part paper considering network design based on a Lagrangian stochastic particle dispersion model (LPDM), aimed at reducing the uncertainty of the flux estimates achievable for the region of interest by the ...Read more
Author:Ziehn, T; Nickless, A; Rayner, PJ; Law, RM; Roff, G; Fraser, PDate:Sep 2014This paper describes the generation of optimal atmospheric measurement networks for determining carbon dioxide fluxes over Australia using inverse methods. A Lagrangian particle dispersion model is used in reverse mode together with a Bayesian ...Read more
Author:Van Wyk, Llewellyn VDate:Oct 2014The development and maintenance of infrastructure is crucial to improving economic growth and quality of life (WEF 2013). Urban infrastructure typically includes bulk services such as water, sanitation and energy (typically electricity and ...Read more
Author:Godfrey, Linda KDate:Nov 2014The Waste Sector, as with many sectors of the economy, is responding to the call to transition to a Green Economy. Globally, waste management is changing from one of ‘collect-transport-dispose’, to one of ‘secondary resource management’, ...Read more
Author:Jamison, Kevin ADate:Sep 2018The analysis of the separation of a Precision Guided Munition (PGM) from many configurations of an advanced jet trainer was performed using aerodynamic data from wind-tunnel tests characterised using the grid method. As strong aerodynamic ...Read more