Author:Kumar, R; Kumar, R; Ofosu, ODate:Oct 2015The commodity articles from polyethylene (PE) and polypropylene (PP) are widely used in today’s world. To reduce the carbon footprint, biopolymers such as polylactic acid (PLA) as commodity plastics are also explored. Often, these polymers ...Read more
Author:Roberts, DE; Du Plessis, A; Steyn, J; Botha, LR; Pityana, Sisa L; Berger, LRDate:Jul 2012Laser Induced Breakdown Spectroscopy (LIBS) was used to study the spectra from fossils and surrounding rock recovered from the Cradle of Mankind site at Malapa, South Africa. The objective was to find a suitable spectral line(s), specific to ...Read more
Author:Vallabh, Bhavya; Skews, BWDate:Sep 2017The existing nozzle contour profiles of the CSIR’s supersonic or High Speed Wind Tunnel (HSWT) produce weak waves in the test section region, which effectively degrades the air flow quality in the test section. This paper describes a calculation ...Read more
Author:Gayathri, S; Ghosh, OSN; Sathishkumar, S; Sudhakara, S; Jayaramudu, J; Ray, SS; Viswanath, AKDate:Dec 2015In this report we have demonstrated the synthesis of silver doped and pure ZnO nanoparticles using facile chemical precipitation method. The crystal structure, optical and magnetic properties of the synthesized nanocrystals were determined ...Read more
Author:Gbadeyan, OJ; Adali, BJ; Bright, G; Sithole, Bishop BDate:Jun 2021The current study investigates the reinforcement properties of novel nano-calcium carbonate (nano-CaCO(sub3)) synthesized from Achatina fulica snail shell. The shell was wet-milled to nanoparticle sizes using mechanochemical procedures. Epoxy ...Read more
Author:Gummow, RJ; Thackeray, MMDate:May 1994Cathode materials that have been synthesized by reduction of lithium-manganese- Cathode materials that have been synthesized by reduction of lithium-manganese-oxide and manganese-oxide precursors with hydrogen at 300 to 350-degrees-C, and ...Read more
Author:Oluwaleye, Oluwaleye; Madhuku, M; Mwakikunga, Bonex W; Moloi, SJDate:Apr 2019Indium Tin Oxide (ITO) thin films have been used extensively in many applications, such as solar cells. In particular, ITO has been the material of choice in flat panel displays as one of its electrodes due to its low resistivity, high ...Read more
Author:Cordeiro, N; Gouveia, C; Jacob John, MayaDate:Jan 2011Inverse gas chromatography (IGC) is a suitable method to determine surface energy of natural fibres when compared to wetting techniques. In the present study, the surface properties of raw and modified lignocellulosic fibres have been ...Read more
Author:Wellington, Kevin W; Nyoka, NBP; McGaw, LJDate:Jan 2019The WHO has stated that antibiotic resistance is escalating to perilously high levels globally and that traditional therapies of antimicrobial drugs are futile against infections caused by resistant microorganisms. Novel antimicrobial drugs ...Read more
Author:Labuschagne, Philip W; John, Maya J; Sadiku, REDate:Jul 2010The degree of homogeneity and H-bond interaction in blends of low-molecular-mass poly(ethylene glycols) (PEG, Mw = 400, 600, 1000) and poly(vinylpyrrolidone) (PVP, Mw =9×103) prepared in supercritical CO2, ethanol and as physical mixtures ...Read more
Author:Motaung, DE; Malgas, GF; Arendse, CJ; Malwela, TDate:Jun 2010The authors investigate the effect of substrate annealing prior to the deposition of the active layer on the morphological, structural and opto-electrical properties of two variations of organic polymer blends of poly (3-hexylthiophene):C60 ...Read more
Author:Bhaumik, M; Mahule, TS; Srinivasu, VV; Maity, ArjunDate:Jun 2019One-dimensional composite nanostructures of chloride-doped polyaniline (PANI-Cl) and Fe nanoparticles (NPs) were fabricated via deposition of Fe NPs onto the PANI nanofiber matrix at room temperature. Morphological and structural characterization ...Read more
Author:Wall, KDate:Apr 2006There is a need in South Africa for institutional innovations aimed at increasing the coverage of water services, and sustaining those services. The paper describes an investigation of an alternative service delivery institutional concept, ...Read more
Author:Hoosain, SE; Tshabalala, Lerato C; Skhosana, Besabakhe S; Freemantle, C; Mndebele, NDate:Nov 2021One of the main considerations in adopting the additive manufacturing (AM) technology is whether the material properties of the AM-produced part are comparable with the wrought material. This study compared the properties of AM-produced 304 ...Read more
Author:Moller, H; Govender, G; Stumpf, WEDate:2008The heat treatment cycles that are currently applied to semi-solid processed components are mostly those that are in use for dendritic casting alloys. These heat treatments are not necessarily the optimum treatments. It is shown that a decrease ...Read more
Author:Raganya, Mampai L; Moshokoa, Nthabiseng; Obadele, BA; Olubambi, PA; Machaka, RonaldDate:2020Extensive efforts have been undertaken to develop Ti alloys consisting of single ß phase in order to substitute the a + ß phase in Ti-6Al-4V used as biomaterials. This study was aimed at investigating the tensile properties of solution treated ...Read more
Author:Anochie-Boateng, Joseph; George, Theresa BDate:Jun 2017Recent study at the Council for Scientific and Industrial Research in South Africa has revealed the potential to substitute depleting natural aggregates with waste crushed glass in asphalt mixes. This paper presents an investigation of the ...Read more