Author:Hunter, L; Smuts, SDate:Feb 1978This report is concerned with the yarn frictional properties, which were not covered in the earlier studies, the knitting performance of the yearns and the physical properties of the resulting fabrics.Read more
Author:Shackleton, CMDate:Jul 2000Patterns of higher plant species richness and beta diversity were assessed using standard Modified-Whittaker plots in relation to land use, slope position and mean annual rainfall across a rainfall gradient in the savanna areas of the ...Read more
Author:Mentz, J; Kotzé, Paula; Van der Merwe, ADate:Oct 2012The term enterprise architecture has been in use for almost thirty years if the seminal paper (published in 1987) by Zachman is taken as its starting point. As a scientific area of study this time span is relatively short but for the practitioner ...Read more
Author:Nice, Jako A; Kumirai, Tichaona; Conradie, Dirk CU; Grobler, Jan-HendrikDate:Dec 2015The impact of Tuberculosis (TB) is of epidemic proportions in South Africa (SA) being one of the developing countries. Furthermore, studies seem to indicate that health care facilities are contributing to the spread of Mtb (Eshun-Wilson et ...Read more
Author:Bulcock, HH; Gush, Mark B; Jewitt, GPWDate:Apr 2014A number of studies undertaken in South Africa to quantify the green water-use (total evaporation) of introduced commercial forestry species have shown conclusively that green water-use from commercial forest plantations is substantially ...Read more
Author:Botha, Nicolene; Van der Walt, ChristiaanDate:Dec 2016With the drive to reduce carbon emissions, the use of renewable energy such as wind power, solar power, hydropower and biofuel has become more prevalent globally. In the case of wind farms, the power generated by wind turbines is highly ...Read more
Author:Rowlinson, LC; Summerton, M; Ahmed, FDate:Oct 1999It has been estimated that South Africa will reach the limits of its usable freshwater resources during the first half of the next century if current trends in water use are not reversed. Removing alien vegetation, responsible for the uptake ...Read more
Author:Nxumalo, SL; Adigun, MO; Mudali, P; Ntlatlapa, Ntsibane S; Ncanana, SMDate:Sep 2011A number of routing metrics exist in wireless networks. These routing metrics were originally designed for mobile ad hoc networks (MANETs). When Wireless Mesh Networks (WMNs) came into being, an idea of introducing and using these routing ...Read more
Author:Savage, WHDDate:1974At various times complaints have been received from the Transvaal Coal Owners Association and collieries about low calorific values obtained by the Institute on samples taken for the S.A.R locomotive contract.Read more
Author:Griffith, DJ; Sprung, D; Sucher, E; Ramkilowan, A; Vhengani, LDate:Sep 2013The optical effect of atmospheric turbulence greatly inhibits the achievable range of Detection, Recognition and Identification (DRI) of targets when using imaging sensors within the surface layer. Since turbulence tends to be worst near the ...Read more
Author:Hunter, L; Gee, E; Smuts, SDate:Jul 1981In spite of the widely reported similarity of properly constructed STT yarns and two-ply ring spun yarns in terms of physical properties and weaving performance, a mill with a large Repco installation approached SAWTRI because of problems ...Read more
Author:Shiloh, MDate:Oct 1973Plain and twill weave light weight suiting fabrics were woven from each of three types of yarns; all-wool, 80/20 wool/nylon staple blends and 80/20 wool/nylon filament cores.Read more
Author:Melebari, A; Mishra, AK; Abdul Gaffar, MYDate:Oct 2015A major challenge in radar detection is to optimize both the detection performance and computation cost. In Constant False Alarm Rate (CFAR) algorithms, different detectors can be implemented like linear, square law or Bessel detectors. These ...Read more
Author:Loader, NJ; Robertson, I; McCarroll, DDate:01 Aug 2003The stable carbon isotope ratios (N13C) of whole wood, cellulose and acid-insoluble lignin from annual latewood increments of Quereus robur L., from modern and sub-fossil wood, were measured and their potential use as palaeo environmental ...Read more
Author:Bird, SLDate:Dec 1984The Stoll (flex), Martindale and Accelerator abrasion results of 64 plain and twill weave fabrics of differing fibre content and fabric mass were determined and compared.Read more
Author:Singh, A; Karsten, ADate:May 2011The accuracy of the calibration model for the single and double integrating sphere systems are compared for a white light system. A calibration model is created from a matrix of samples with known absorption and reduced scattering coefficients. ...Read more
Author:Hunter, LDate:Aug 1983Airflow measured micronaire, maturity and fineness values, obtained on lap and card and drawframe slivers, have been compared, the samples having been prepared for testing by opening and randomisation on wither a Shirley analyzer or an Essdiel ...Read more
Author:Alexander, Kabamba; Malatji, Kanyane; Mulaudzi, TakalaniDate:May 2020Tandemers 2MG, 2MG3, 3MG and 4MG are derivatives of the potent anti-HIV-1 microbicide candidate griffithsin (GRFT). We compared these compounds anti-HIV-1 activity to GRFT using the viruses CAP206.08 and CAAN5342.A2 that have decreased ...Read more
Author:Wise RM; Dye PJ; Gush, Mark BDate:Jun 2011Water resources in many catchments in South Africa (SA) are over committed and water is projected to become scarcer. The impacts of plantation forestry on water resources in SA are well known and legislation limits further afforestation. ...Read more
Author:Turpie, DWF; Geldard, A; Kruger, PJDate:Nov 1971The single swift metallic card gave results which favored its use in preference to the double swift fillet or double swift metallic cads for a long wool of 64's quality which was free to nearly free of vegetable matter.Read more