Author:Gee, EDate:Jul 1976From a theoretical study of the assumed moisture gradients in a bale of greasy wool. resulting from changes in ambient conditions, estimates of the bias in yield given by core wool base, which is moved from a 40 percent RH environment to a ...Read more
Author:Grantham, GH; Thomas, RJ; Eglington, BM; Debruin, D; Atanasov, A; Evans, MJDate:1993Olivine-plagioclase and phlogopite-plagioclase coronas have been identified from olivine melanorites of the mid- to late Proterozoic Equeefa Suite in southern Natal, South Africa. Olivine, in contact with plagioclase, is mantled by a shell ...Read more
Author:Haywood, Lorren K; Brent, AC; Trotter, DH; Wise, RDate:2010In this paper authors consider the increasingly prominent expectations that business can and will significantly contribute to sustainable development. They use the framework of social-ecological systems, and the principles thereof, as a lens ...Read more
Author:Walubita, LF; Mahmoud, E; Fuentes, L; Prakoso, A; Lee, SI; Souliman, M; Komba, Julius JDate:Nov 2020Asphalt-binders are part of the key material constituents affecting the performance of hot-mix asphalt (HMA), and ultimately, the field performance of flexible pavement structures. Quite often, it is desired/useful to predict the HMA permanent ...Read more
Author:Walubita, LF; Ling, M; Fuentes, L; Komba, Julius J; Mabrouk, GMDate:Sep 2022Asphalt binder is one of the key constitutive components of hot-mix asphalt (HMA) that considerably affects its rutting performance. In particular, the high-temperature rheological properties measured from the multiple stress creep and recovery ...Read more
Author:Walubita, LF; Fuentes, L; Prakoso, A; Pianeta, LM; Komba, Julius J; Naik, BDate:Mar 2020Rutting is one of the common distresses occurring in hot-mix asphalt (HMA) pavements that can be mitigated through adequate laboratory testing during the HMA mix-design screening stage. The Hamburg Wheel Tracking Tester (HWTT) is one of the ...Read more
Author:Kelly, IWDate:May 1976Good correlation was found between the AATCC Wrinkle Recovery Rating and the mean wrinkle for a series of cotton/polyester blend fabrics.Read more
Author:Hunter, L; Gee, EDate:Apr 1982This paper reports on some findings of a study started at the SAWTRI some five years ago ago, and which was aimed at determining the effect of fibre properties and in particular, air-flow determined fineness and maturity, on the properties ...Read more
Author:Ndwe, TJ; Barnard, E; Foko, Thato EDate:May 2013Access to information and communication is one of the most important needs in any population group. It is generally challenging for people in the developing world to access information because the tools and the technologies used to access ...Read more
Author:Maliwatu, R; Lysko, Albert A; Johnson, David L; Hadzic, SDate:Dec 2016An investigation into the Received Signal Strength Indicator (RSSI) dependency on receiver antenna height in UHF band is conducted. The results show a high correlation between RSSI and height on channels with high signal strength. There is ...Read more
Author:Motaung, DE; Malgas, GF; Arendse, CJDate:2010The photo-induced charge transfer and optoelectronic efficiency of the solar cells correlated to the morphology and the structure of P3HT:C60 blend was studied by means of photoluminescence and electron spin resonance (ESR). The occurrence ...Read more
Author:Lotter, J; Botes, AL; Van Dyk, MS; Breytenbach, JCDate:Aug 2004Epoxides are often highly hydrophobic substrates and the presence of an organic co-solvent within an aqueous bioreactor is in such cases indicated. The effect of 40 water-miscible and -immiscible organic solvents on epoxide hydrolase activity ...Read more
Author:Gee, E; Turpie, DWFDate:Jan 1978An attempt to correlate certain properties of raw wool with the detergent requirements during scouring was made during a study involving a wide range of South African fleece wools.Read more
Author:Maluke, N; Mturi, George AJ; Hesp, SAMDate:Oct 2018In South Africa, over the last two decades, there has been a need to improve on the ductility specification test and to better simulate ageing of the asphalt bitumen in the laboratory for the control of fatigue cracking distress. Focusing on ...Read more
Author:Masete, Mosimanegape S; Mutombo, Kalenda; Mostert, R; Siyasiya, C; Stumpf, WDate:Oct 2016The effect of the microstructure on fatigue crack growth resistance of the Ti-6Al-4V alloy was investigated. Various microstructures were produced by solution treatment above the beta transus temperature followed by cooling at different rates. ...Read more
Author:Horak, E; Maina, JW; Guiamba, D; Hartman, ADate:Jul 2008The Light Falling Weight Deflectometer (LWD) has recently become available in South Africa as a portable, light weight, user friendly version of the well established Falling Weight Deflectometer (FWD). This device uses very similar technology ...Read more
Author:Hunter, L; Cizek, J; Turpie, DWFDate:1987An analysis has been undertaken of the inter-correlation between various measures of weak places in yarns and their role in determining weavability.Read more