Author:Ajoodha, R; Klein, R; Rosman, Benjamin SDate:Nov 2015In this paper we use content-based features to perform automatic classification of music pieces into genres. We categorise these features into four groups: features extracted from the Fourier transform’s magnitude spectrum, features designed ...Read more
Author:Mapeto, P; Gush, Mark B; Louw, JDate:Mar 2017In South Africa, the development of a plantation tree industry using fast-growing introduced species was accelerated by the limited extent of indigenous forests. However, concerns about the impacts of plantations on the country’s limited water ...Read more
Author:Mathekga, Mmamolatelo E; Msiza, ISDate:Nov 2009A new algorithm for identifying and locating singular points on a fingerprint image is presented. This algorithm is based on properties of the fingerprint orientation image, including a feature defined as a transition line. The transition ...Read more
Author:Ripamonti, U; Crooks, J; Kirkbride, ANDate:Aug 1999Sintered hydroxyapatites induce bone formation in adult baboons via intrinsic osteoinductivity regulated by the geometry of the substratum. Bone is thereby formed without exogenous bone morphogenetic proteins (BMPs), well-characterized inducers ...Read more
Author:Govender, A; Bemont, C; Chikosha, SilethelweDate:Jun 2021Presently, the majority of titanium powder metallurgy components produced are sintered under high vacuum due to the associated benefits of the vacuum atmosphere. However, high-vacuum sintering is a batch process, which limits daily production. ...Read more
Author:Fouché, Gerda; Van Rooyen, S; Faleschini, TDate:Feb 2013Asthma is a chronic inflammatory disease of the lungs, characterized by increased sensitivity to bronchoconstriction associated with infiltration of immune cells and mucus hyper secretion. In South Africa, the indigenous plant Siphonochilus ...Read more
Author:Hunter, L; Strydom, MADate:Sep 1983A preliminary study, covering five wool lots, has been carried out to establish the effect of limited changes in either fibre diameter or fibre length on the spinning performance and properties of Sirospun yarns.Read more
Author:Mapiravana, Joseph; Dlamini, MandlaDate:Dec 2011Natural fibre reinforced cement composites are promising potential materials for use in panelised construction. The structural properties of these composite materials are yet to be fully understood. As the role of the natural fibre is to ...Read more
Author:Bidwell, NJ; Winschiers-Theophilus, H; Koch-Kapuire, G; Chivuno-Kuria, SDate:2011The authors describe a rural African community’s interactions in recording and interpreting video on herb lore in our endeavours to design digital systems that extend sharing knowledge in a system of traditional medicine (TM). Designing for ...Read more
Author:Bidwell, NJ; Siya, MJDate:Sep 2013Designing for oral users in economically poor places has intensified efforts to develop platforms for asynchronous voice. Often these aim to assist users in rural areas where literacy is lowest, but there are few empirical studies and design ...Read more
Author:Reitmaier, T; Bidwell, NJ; Marsdena, GDate:Sep 2011The authors reflect on the methods, activities and perspectives we used to situate digital storytelling in two rural African communities in South Africa and Kenya. They demonstrate how in-depth ethnography in a village in the Eastern Cape of ...Read more
Author:Venter, SN; Steynberg, MC; De Wet, CME; Hohls, D; Du Plessis, G; Kfir, ADate:1997A situational analysis of a peri-urban catchment experiencing microbial water quality problems was carried out using data collected over two and a half years. The water and land use in the area was determined. The main sources of pollution ...Read more
Author:Raab, GADate:1974A knowledge of size distribution of the coal produced is of obvious interest to the coal industry and suppliers of mining and coal preparation equipment.Read more
Author:Raab, GADate:1972At Tweefontein United Collieries Limited, coal is won from No. 2 and No. 4 seams. The coal is hand-loaded underground into tube and arrives at the tipplers via the Western shaft and the Klipplaat shaft.Read more
Author:Raab, GADate:1973Anthracite mined from four sections of the seam and hand-loaded into tubs arrives at the surface via the haulage adit. The total discard amounts to approximately 23 to 24 per cent, 3 to 4 per cent of which arrives from the picking belt. leaving ...Read more