Author:Kleyn, EG; Bergh, AODate:Jul 2008Good quality and sub-base material for road pavement construction is becoming increasingly scarce. Dolerite is one of the more abundant natural road building materials in South Africa. Yet, it seems that the road design and construction ...Read more
Author:Hunter, L; Gee, E; Sanderson, KWDate:Jun 1983The physical properties of more than 2000 cotton samples, covering three seasons, various cultivars and different production areas, have been measured and average to provide typical values for the different cultivars.Read more
Author:Barkenhuysen, FA; Van Rensburg, NJJDate:Jul 1984The modification of the structure of bleached cotton treated in yarn from with anhydrous liquid ammonia and liquid ammonia containing as much as 15% water was determined with the aid of iodine and moisture absorption tests, X-ray diffraction ...Read more
Author:Aldrich, De VDate:Jun 1976Eleven lots of cotton comprising several cultivars from two areas (Upington and Groblersdal) were submitted for fibre analyses and spinning trials.Read more
Author:Aldrich, De V; Grobler, ADate:May 1973Some mechanical properties of wool, wool/polyester and wool/acrylic intimately blended yarns were investigated.Read more
Author:Cooper, Antony K; Coetzee, S; Ravno, KDate:Nov 2010This short positional paper outlines several areas where research is required: 1) Novel ways of representing geovirtual environments on small mobile phone information displays that require limited bandwidth, 2) understanding of how geovirtual ...Read more
Author:Cooper, Antony KDate:May 2008Some of the research issues in humanitarian logistics and quantitative methods discussed in this presentation are Identifying people in a disaster; Facilitating movement of people and aid; Geographic Information Services (GIS) to support ...Read more
Author:Hunter, L; Gee, E; Spencer, JDDate:Jun 1980Tables are presented for the average properties of the various classes of cottons grown in South Africa during the past three years.Read more
Author:Smuts, S; Hunter, L; Van Rensburg, HLJDate:Sep 1981Single fibre tenacity, extension at break and initial modulus were measured on a large number of wool samples covering a wide range of diameter and crimp.Read more
Author:Leyland, RDate:2014The Karoo Dolerite Suite in South Africa is an important source of road construction aggregates both as natural gravel aggregate and as a crushed rock aggregate. The reason for this is the wide distribution of the suite throughout the Karoo ...Read more
Author:Leyland, RDate:2015The Karoo Dolerite Suite in South Africa is an important source of road construction aggregates both as natural gravel aggregate and as a crushed rock aggregate. The reason for this is the wide distribution of the suite throughout the Karoo ...Read more
Author:Strydom, MADate:Apr 1975Good quality kids' hair was treated for increasing periods of time in various buffer solutions at various pH levels and at temperatures varying between 50 degrees and 95 degrees.Read more
Author:Lysko, Albert ADate:Sep 2012This paper introduces a new method generally termed memoization, to accelerate filling in the impedance matrix, e.g. in the method of moments (MoM). The memoization stores records for recently computed matrix elements in a cache, and, when ...Read more
Author:Mehlo, L; Grootboom, M; O'Kennedy, Maretha M; Okole, BDate:Feb 2006The goal of this project is to develop transgenic sorghum varieties that will deliver essential amino acids (lysine, threonine and tryptophan), vitamins A and E, iron and zinc - all of which are deficient in sorghum - to African populations ...Read more
Author:Barkenhuysen, FA; Van Rensburg, NJJDate:Aug 1981The effect of anhydrous and aqueous liquid as well as sodium hydroxide on the sorption of moisture, iodine and barium hydroxide by cotton was investigated.Read more
Author:Schulze, C; Dudley, Angela L; Flamm, D; Duparr, M; Forbes, ADate:Oct 2013We present a novel tool for sorting the orbital angular momentum and to determine the orbital angular momentum density of laser beams, which is based on the use of correlation filters.Read more
Author:Kassa, BB; Julia, J; Nyblade, AA; Durrheim, RJDate:Sep 2009The Far West Rand mining district is known for its deep gold mines and the associated high levels of seismic activity. Thousands of tremors are recorded every day by geophones installed in the mine workings. These events range in total magnitude ...Read more