Author:Gerryts, BA; Buys, AJDate:Jul 2008In investigating the link between R&D and innovation, data was used from the South African Innovation Survey of 2001 (SAIS2001). The SAIS2001 results showed that South African enterprises had a relatively high level of innovation with a low ...Read more
Author:Curle, A; Moller, H; Govender, GDate:2013The history of semi-solid metal forming and in particular rheo-high pressure die casting at the Council for Scientific and Industrial Research in South Africa is discussed. Processing flexibility is demonstrated on the Al-Si-Mg, Al-Mg-Si, ...Read more
Author:Curle, UA; Wilkins, JD; Govender, GDate:2013Flexibility of the Council for Scientific and Industrial Research’s Rheocasting System (CSIR-RCS) and its rheo-high pressure die casting (R-HPDC) technology is again demonstrated, as with aluminium alloys, by processing and shape casting of ...Read more
Author:Bosilong, KP; Mbecke, PDate:May 2010This chapter begins with a brief tour of South Africa's justice and political systems, demographics and discourses of race. The brief narrative, which will also allude to situations in Apartheid South Africa, is meant to aid understanding of ...Read more
Author:Anderson, FDate:Nov 2008South Africa, like other countries, faces the challenge of protecting its territory and its people from activities such as illegal border crossings, weapons trafficking, smuggling, piracy, poaching, organised crime, and terrorism on land, at ...Read more
Author:Du Plessis, MC; Olivier, JCDate:Jul 2009This paper presents a classification method which discriminates between two radar transmitters based on the received pulses. A simple radar transmitter model is presented to which a non-stationary signal classifier is applied. The classifier ...Read more
Author:Zhang, Y; Roux, FX; McLaren, M; Forbes, ADate:2014The radial degrees of freedom of the biphoton states that are produced in spontaneous parametric down-conversion (SPDC) in the Laguerre-Gaussian (LG) basis are investigated, theoretically and experimentally. We calculated the theoretical ...Read more
Author:Sephton, Bereneice C; Dudley, Angela LDate:Aug 2017Beams carrying orbital angular momentum (OAM) are ubiquitous in many experiments carried out today and cover a wide range of research, from surface microstructure processing to optical tweezers and communications. It follows that these beams ...Read more
Author:Mathuthu, M; Raseleka, RM; Forbes, A; West, NADate:Dec 2006Laser-induced breakdown spectroscopy (LIBS) is a non-intrusive technique that needs no sample preparation and even recently, quantitative measurements were done without the need for calibration standards. Much research has been done on the ...Read more
Author:Makinta, MJ; Brinders, JM; Smith, KADate:Oct 2005Irradiation has adverse effects on reproductive aspects such as spermatogenic cell population and cell malformation, leading to reduced sperm count and non-viable spermatozoa. This has overshadowed possible effects of radiation exposure on ...Read more
Author:Garner, E; Barkenhuysen, FADate:Dec 1984The bleaching of cotton fabrics with radio frequency (RF) energy was investigated and compared with conventional pad-steam bleaching.Read more
Author:Ogbodo, EU; Dorrell, DG; Abu-Mahfouz, Adnan MIDate:Jan 2021Background: A cognitive radio sensor network (CRSN)-based Smart Grid (SG) is a new paradigm for a modern SG. It is totally different from the traditional power grid and conventional SG. Currently, an SG uses a static resource allocation ...Read more
Author:Austin, BADate:2013This report forms a summary of the work done by the Chamber of Mines Research Organization before it merged with the CSIR. It deals with gold mining in South Africa, and contains a summary of the work that was done on underground radio.Read more
Author:Simpson, BRSDate:Jan 2002South Africa's national radioactivity measurement standard is maintained at a satellite laboratory in Cape Town by the National Metrology Laboratory (NML) of the Council-for Scientific and Industrial Research. Standardizations are undertaken ...Read more
Author:Vogel, JC; Fuls, A; Visser, EDate:Mar 2001High-precision radiocarbon dating of a millennium-old yellowwood tree from the Midlands of Natal shows that the tree-rings do, in general, record annual growth, but that both missing and false rings occur. At two places along the transect of ...Read more
Author:Ryan, PG; Steele, WK; Siegfried, WR; Vogel, JCDate:Nov 1992There are several problems associated with determining radiocarbon dates, particularly for organic material from Antarctica. However, this study attempts to find accurate measure of the length of time these radiocarbon dates have been established ...Read more
Author:Oschadleus, HD; Vogel, JC; Scott, LDate:Jan 1996The age of the peat, or 'lignite', layer in the Port Durnford Formation on the Zululand coast has been established to be about 70 kyr by means of the Th-230/U-234 disequilibrium dating technique. This date places the pent temporally at the ...Read more
Author:Loveday, Philip W; Long, Craig SDate:Dec 2019Ultrasonic guided waves have been shown to propagate large distances in continuously welded rail track.Read more
Author:Shackleton, CMDate:Mar 1999Woody community phenology was studied in the central lowveld, South Africa, over a twelve month period at three sites along a rainfall gradient, with both toplands and bottomlands sampled at each site. Each month, individual plants, in ...Read more