Author:Ombinda-Lemboumba, Saturnin; du Plessis, A; Botha, LR; Rohwer, EG; Steenkanp, CMDate:01 Sep 2010Phthalocyanines are new class of photosensitiser used for photodynamic therapy. These drugs are used to treat small and superficial tumours. In recent years, a particular attention has been given to phthalocyanine in order to search suitable ...Read more
Author:Van Zyl, PJDate:Apr 2006The presentation is based on the new challenges facing an age old technology of fermentation. These challenges were presented at the SASM Conference, the conclusion been that the future of fermentation is only limited by our imagination. ...Read more
Author:Botha, Anton F; Roux, JADate:Nov 2008South Africa has over 4 million indigenous goats (Boer, Savannah and Nguni/Mbusi breeds), many of which have two coats of fibre, namely a cashmere like fine down and a coarse guard hair. These goats are primarily kept for their meat, milk and ...Read more
Author:Botha, Anton F; Roux, JADate:Nov 2008South Africa has over 4 million indigenous goats (Boer, Savannah and Nguni/Mbusi breeds), many of which have two coats of fibre, namely a cashmere-like fine down and a coarse guard hair. These goats are primarily kept for their meat, milk and ...Read more
Author:Botha, Anton F; Roux, JADate:Nov 2008South Africa has over 4 million indigenous goats (Boer, Savannah and Nguni/Mbusi breeds), many of which have two coats of fibre, namely a cashmere-like fine down and a coarse guard hair. These goats are primarily kept for their meat, milk and ...Read morecb
Author:Vieira, R; van den Bergh, F; van Wyk, BJDate:Nov 2008This paper presents a fiducial-based approach to monitoring the movement of breakwater armour units in a model hall environment. Target symbols with known dimensions are attached to the physical models, allowing the recovery of three-dimensional ...Read more
Author:Balmaceda, P; De Beer, MorrisDate:1992A methodology for evaluating the condition of jointed portland cement concrete pavements (JCP) by non-destructive deflection testing was recently applied on the National Route 4 (N4) between Middelburg and Witbank. A set of two calibrated ...Read more
Author:Basappa Ayanna, Manjunath; Mkasi, Hlaluku W; Pratt, Lawrence E; Roro, Kittessa TDate:Nov 2019This study presents the initial results of field performance analysis conducted on bi-facial modules installed on a fixed tilt rack and dual axis tracker system in Pretoria, South Africa. Bifacial modules produce better energy yield compared ...Read more
Author:Reitmaier, T; Bidwell, NJ; Marsden, GDate:Sep 2010We describe and reflect on a method we used to evaluate usability and give insights on situated use of a mobile digital storytelling prototype. We report on rich data we gained by implementing this method and argue that we were able to learn ...Read more
Author:Venter, JP; Nare, SDate:Nov 2008The rapid development and use of information and communication technology (ICT) has influenced everyday life, mostly in a positive manner. This technology is, however, also available to the criminally minded. Activities performed through ICT ...Read more
Author:Mathekga, Mmamolatelo EDate:Oct 2015The ease with which the green South African ID book could be forged has led to many instances of identity fraud, costing retail businesses millions in lost revenue on fraudulently created credit accounts. This has led the government, through ...Read more
Author:Cronje, JDate:Nov 2012The US Patent and Trademark Office, together with the NASA Tournament Lab, launched a contest to develop specialized algorithms to help bring the seven million patents presently in the patent archive into the digital age. The contest was ...Read more
Author:Bischof-Niemz, TDate:Feb 2015South Africa’s power system is currently under severe constraints, with power generators meant to be the “barely-ever-used” safety net for the system (diesel-fired gas turbines) running at > 15% average annual load factor, and with one ...Read more
Author:Bischof-Niemz, TobiasDate:Feb 2015This study addressed the questions how much fuel costs the first 1 600 MW of wind & PV have saved during the year 2014 (by reducing utilisation of diesel-fired gas turbines & of the expensive part of the coal fleet) & how much of “unserved ...Read more
Author:Calitz, Joanne R; Mushwana, Crescent; Bischof-Niemz, Sebastian TDate:Aug 2015The report provides the presentation of the financial benefits of renewables in South Africa in 2015. South Africa’s power system is currently under severe constraints. At the same time, Department of Energy is procuring new generation capacity ...Read more
Author:Bischof-Niemz, STDate:Oct 2015South Africa’s power system is currently under severe constraints with load shedding that occurred during 82 days in the first half of 2015. The Department of Energy is procuring new generation capacity and has already allocated a total of ...Read more
Author:Nortje, R; Britz, K; Meyer, TDate:Dec 2009Module extraction plays an important role in the reuse of ontologies as well as in the simplification and optimization of some reasoning tasks such as finding justifications for entailments. In this paper the authors focus on the paper of ...Read more