Author:Masete, Mosimanegape S; Muchavi, Noluntu S; Chikosha, SilethelweDate:Dec 2018Determination of tensile properties of materials is required to reliably predict performance of engineering materials in service and for design purposes. Tensile properties are also used as a measure of product quality. Various testing standards ...Read more
Author:Badenhorst, JAC; Davel, MHDate:Nov 2007The authors analyse the effect of speech rate variation on Afrikaans phone stability from an acoustic perspective. Specifically they introduce two techniques for the acoustic analysis of speech rate variation, apply these techniques to an ...Read more
Author:Maubane, Lesego T; Ray, Suprakas S; Jalama, KDate:Jan 2017In this study, butyl-etherified waxy and high amylose starches were melt-processed with biodegradable poly[(butylene succinate)-co-adipate] (PBSA) to improve the long-term stability of the starch-based materials. Butyl-etherification was ...Read more
Author:Esterhuizen, GSDate:Dec 1998The stability of underground coal mines depends on the integrity of the pillars which are required to support the overlying strata. Should the pillars collapse, the safety of the persons in the workings will be threatened. The strength of a ...Read more
Author:Stark, T; Chakauya, E; Kabamba, A; Morris, L; Rybicki, E; Chikwamba, Rachel KDate:01 Sep 2010Due to the increasing demand for pharmaceuticals and the high cost of production in traditional fermentor systems, plants are being considered as alternative production platforms for therapeutic molecules. One of the considerations for ...Read more
Author:Van der Westhuyzen, Christiaan W; Rousseau, AL; Parkinson, CJDate:2007In an investigation into the electrophilic nitrosation reactions of a series of 4,6-disubstituted pyrimidine derivatives, a subtle interplay between the electronic nature of the C-4 and C-6 substituents and reactivity was found where these ...Read more
Author:Mupambi, G; Schmeisser, M; Lötze, E; Malan, C; Dzikiti, Sebinasi; Steyn, WJDate:Jan 2017Pulsing irrigation is a supplementary irrigation strategy whereby South African apple growers aim to reduce tree stress during a heat wave by applying additional water to the orchard floor using microsprinklers. The aim of this research was ...Read more
Author:Mathieu, Renaud; Main, Russell S; Roy, DP; Naidoo, Laven; Yang, HDate:Jun 2019Savannahs are mixed woody-grass communities where low-intensity surface fires are common, affecting mostly the grass layer and rarely damaging trees. We investigated the effect of surface fires in a savannah system in the Kruger National Park, ...Read more
Author:Ramontja, J; Ray, SS; Kesavan Pillai, Sreejarani; Luyt, ASDate:Jan 2011This paper discusses various properties of Poly(lactide) upon nanocomposite formation with functionalized multiwalled carbon nanotubes (f-MWCNTs). The composite was prepared through melt extrusion technique. Functionalization of carbon nanotubes ...Read more
Author:Mkhonto, D; De Leeuw, NHDate:Jan 2008Computer modelling techniques were employed to investigate the effect of surface silanol groups on the strength of adhesion of apatite thin films to silica surfaces. To this end, the researchers have studied a series of silica surfaces with ...Read more
Author:Ncube, Ntombizodwa M; Zheng, HaitaoDate:Jan 2020In this work, we carried out a detailed research on the effect of synthesis temperature on the properties of TiO(sub2) (B) nanorods and its hydrogen titanate precursors. At the initial stage, hydrogen titanates (HTOs)were synthesised at ...Read more
Author:Focke, WW; Van der Westhuizen, I; Lofté Grobler, AB; Nshoane, KT; Reddy, JK; Luyt, ASDate:Apr 2012Biodiesels were prepared using base catalyzed methanolysis of sunflower, soybean and canola oils. Rancimat oxidative stability measurements showed that the induction period (IP) for neat canola biodiesel conformed to EN 14214, the European ...Read more
Author:Roos, TH; Kruger, EDate:Sep 2007The T56 Series III 1st stage rotor blade is cooled using moderately preswirled air from 36 preswirl injection nozzles. The amount of swirl achieved by discrete preswirl coolant jets is generally unknown, due to mixing losses. A “frozenrotor” ...Read more
Author:Gbashi, S; Njobeh, P; Steenkamp, P; Tutu, H; Madala, NDate:Jun 2016Pressurized hot water extraction (PHWE) technique has recently gain much attention for the extraction of biologically active compounds from plant tissues for analytical purposes, due to the limited use of organic solvents, its cost-effectiveness, ...Read more
Author:Walters, Chavon R; Cheng, Po-Hsun; Pool, E; Somerset, VDate:Jan 2016Biomarkers of oxidative stress have been widely used in environmental assessments to evaluate the effects of exposure of aquatic organisms to contaminants from various anthropogenic sources. Silver nanoparticles (AgNP), the most produced NP ...Read more
Author:Khoza, BS; Chimuka, L; Mukwevho, E; Steenkamp, PA; Madala, NEDate:Oct 2014Metabolite extraction methods have been shown to be a critical consideration for pharmacometabolomics studies and, as such, optimization and development of new extraction methods are crucial. In the current study, an organic solvent-free ...Read more
Author:Moloto, N; Revaprasadu, N; Musetha, PL; Moloto, MJDate:2009A novel ligand to the synthesis of nanoparticles has been employed in this study. A Tetramethylthiuram disulphide cadmium complex (abundant in sulphur atoms) was used as a single-source precursor for the synthesis of CdS nanoparticles. The ...Read more
Author:Khuluse, SDate:Aug 2009Recent concerns over the potential impact of climate change have made governments conscious of the importance of mitigation plans against the harmful effects of natural hazards. This has reinforced the undertaking of initiatives that are ...Read more
Author:Khuluse, SDate:Aug 2009Recent concerns over the potential impact of climate change have made governments conscious of the importance of mitigation plans against the harmful effects of natural hazards. This has reinforced the undertaking of initiatives that are ...Read more
Author:Mulopo, J; Schaefer, Lisa MDate:Sep 2013Mineral mining generates acidic, saline, metal-rich mine waters, often referred to as acid mine drainage (AMD). Treatment of AMD and recovering saleable products during the treatment process are a necessity since water is, especially in South ...Read more