Author:Mofokeng, Tladi G; Ojijo, Vincent O; Ray, Suprakas SDate:Oct 2016This paper reports on how the blend ratio and morphology influence the mechanical, thermal, thermomechanical, and rheological properties of poly(propylene) (PP)/low density polyethylene (LDPE) blends. The blend morphology is composed of the ...Read more
Author:Agwuncha, SC; Ray, SS; Jayaramudu, J; Khoathan, C; Sadiku, RDate:Jan 2015Blends of polylactide (PLA) and poly(e-caprolactone) (PCL) were melt-processed with boehmite (BAI) nanoparticles to produce ternary biocomposites with the intent of broadening the potential applications of PLA. The mechanical properties of ...Read more
Author:Sikhwivhilu, LM; Kesavan Pillai, Sreejarani; Hillie TKDate:Oct 2010Tin oxide (SnO2) nanoparticles with size range of 19 to 100 nm were successfully synthesized using wet chemical process (i.e. chemical precipitation and sol-gel processes). The results showed that variation of citric acid concentration directly ...Read more
Author:Matseke, Mphoma, S; Zheng, Haitao; Mathe, Mkhulu K; Carleschi, E; Doyle, BDate:Dec 2021Recently, several researchers have found that the manganese ferrite (MnFe2O4) nanoparticle can be a promising candidate for the oxygen reduction reaction (ORR). However, the MnFe2O4 nanoparticles still face challenges on their ORR activity ...Read more
Author:Wessels, Konrad J; Bachoo, AK; Archibald, SDate:May 2009Deriving date-specific phenometrics from different multi-day MODIS composite data can potentially yield very different results. The objectives of this study were therefore to quantify the differences between (i) using 8-day vs. 16-day MODIS ...Read more
Author:Maina, JW; Ozawa, Y; Matsui, KDate:Jul 2008Each layer in a pavement structure is compacted during construction. Moreover, since the compaction process is carried along the same direction, it is well known that horizontal and vertical mechanical properties in each layer differ. But ...Read more
Author:Jansen van Vuuren, J; Grobler, M; Zaaiman, JDate:Mar 2012In South Africa, cyber security has been identified as a critical component contributing towards National Security. More rural communities are becoming integrated into the global village due to increased hardware and software corporate ...Read more
Author:Jacobs, V; Anandjiwala, RD; Maaza, MDate:Nov 2009Electrospinning is a simple method of producing nanofibers by introducing electric field into the polymer solutions. We report an experimental investigation on the influence of processing parameters and solution properties on the structural ...Read more
Author:Mason, S; Ballot, P; Cottrell, J; Currie, J; Heap, ADate:Jul 1998The project has produced information and methodologies for use by designers, mine managers and engineers to improve the health and safety associated with the use of trackless vehicles in mines. The project deliverables focus on assisting; ...Read more
Author:Mofolo, MRO; Lysko, Albert A; Clarke, WADate:Sep 2012The dimensions of an antenna system defines its performance. This implies proper calibration and fabrication process are vital. Thus, there is a need to investigate the influence of the variations in the dimensions of the antenna on its ...Read more
Author:Aramide, B; Popoola, P; Sadiku, R; Jamiru, T; Pityana, Sisa LDate:Nov 2021Laser cladding is an additive manufacturing technology utilised in surface strengthening, modification, and repair of components subjected to adverse working conditions, such as tillage tools, which is accomplished by adding functionally ...Read more
Author:Mthunzi-Kufa, PatienceDate:Aug 2012Stem cells are rich in proteins, carbohydrates, deoxyribonucleic acid (DNA), ribonucleic acid (RNA) and various other cellular components which are responsible for a diversity of functions. Mostly the building blocks of these intracellular ...Read more
Author:Moyo, Lumbidzani; Ray, Suprakas S; Sebati, Ngwanamohuba W; Ojijo, Vincent ODate:Mar 2017The processing and properties of layered double hydroxides (LDHs)-containing polypropylene (PP) composites have been studied extensively. However, no detailed studies have reported on how stearic acid (SA)-intercalated and SA-coated LDHs ...Read more
Author:Stander, MA; Steyn, PS; Lubben, A; Miljkovic, A; Mantle, PG; Marais, GJDate:May 2000The first report of the biological production of bromo ochratoxin B, by Aspergillus ochraceus Wilh. is presented as well as a study of the influence of potassium bromide, potassium iodide, potassium fluoride, and potassium chloride on the ...Read more
Author:Popoola, API; Fatoba, OS; Popoola, M; Pityana, Sisa LDate:Oct 2016Martensitic stainless steels are used in the production of steam turbine blades but their application is limited due to low hardness and poor corrosion resistance. Laser surface alloying and heat treatment of X12CrNiMo Martensitic stainless ...Read more
Author:Kunene, G; Govender, G; Ivanchev, LH; Knutsen, R; Burger, HPDate:Sep 2008The CSIR rheo-process was used to prepare the aluminium A356 SSM slurries and thereafter plates (4x80x100 mm3) were cast using a 50 Ton Edgewick HPDC machine. Plates in the as cast, T4 and T6 heat treatment conditions which had passed radiography ...Read more
Author:Dalton, A; Landman, WADate:Oct 2014Computing costs increase with an increase in global model resolution and ensemble size. This paper strives to determine the extent to which resolution and ensemble size affect seasonal forecast skill when simulating mid-summer rainfall totals ...Read more
Author:De Waal, A; Barnard, EDate:Nov 2010Topic models explain a collection of documents with a small set of distributions over terms. These distributions over terms define the topics. Topic models ignore the structure of documents and use a bag-of-words approach which relies solely ...Read more
Author:Van Zwieten, ACTM; Bulloch, JHDate:Feb 1993The present report describes a study aimed at assessing the influence of interstitial solute concentrations, in the form of carbon, nitrogen and oxygen, on the mechanical properties of a 40% Cr-Fe stainless steel. It’s observed that carbon ...Read more