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
Author:Mthunzi-Kufa, Patience; Forbes, A; Hawkins, D; Abrahamse, H; Karsten, AEDate:Jul 2006A variety of strategies have been utilised for prevention and treatment of chronic wounds such as leg ulcers, diabetic foot ulcers and pressure sores. Low Level Laser Therapy (LLLT) has been reported to be an invaluable tool in the enhancement ...Read more
Author:Forbes, A; Botha, L; Du Preez, N; Drake, TDate:2007Laser ultrasonics is currently the optimal method for non-destructive testing of composite materials in the aerospace industry. The process is based on a laser-generated ultrasound wave which propagates inside the composite. The response at ...Read more
Author:Adeyemi, AA; Akinlabi, ET; Mahamood, RM; Sanusi, KO; Pityana, Sisa L; Tlotleng, MonnammeDate:Sep 2017The influence of laser power on the microstructure of 17-4 PH stainless steel produced by laser metal deposition was investigated. Multiple-trackof 17-4 stainless steel powder was deposited on 316 stainless steel substrate using laser metal ...Read more
Author:Ndou, N; Akinlabi, ET; Pityana, Sisa LDate:Oct 2016The influence of laser power on the deposited of Ti64l4V/W composites was investigated. The energy flow rates were varied while every single other parameter were kept at a steady. The evolving microstructure and the hardness of the composites ...Read more
Author:Turner, PA; Reinartz, RDate:Feb 1989Stopes on three reef horizons and at various depths were examined in the vicinity of inter-panel leads. The general geometry of fractures in the vicinity of inter-panels leads is outlined. The extend of fracturing parallel to the siding between ...Read more
Author:Moller, H; Masuku, EPDate:2009Semi-solid metal processing results in liquid segregation at the surface of the components. The pitting behaviour of this surface layer of semi-solid metal processed alloy F357 was compared with the centre (or bulk) of cast plates in 3.5% ...Read more
Author:Shatalov, MY; Joubert, SV; Coetzee, CEDate:Jan 2011Standing waves can exist as stable vibrating patterns in perfect structures such as spherical bodies, and inertial rotation of the body causes precession (Bryan’seffect). However, an imperfection such as light mass anisotropy destroys the ...Read more