Author:Ntshidi, Zanele; Gush, Mark B; Dzikiti, Sebinasi; Le Maitre, David CDate:Apr 2018Invasive alien plants (IAPs) pose a serious threat to the already limited water resources in dry countries like South Africa which are facing increasing water shortages. Much of South Africa is expected to get drier in future due to climate ...Read more
Author:Raji, Sadiq Abiola; Popoola, API; Pityana, Sisa L; Popoola, OMDate:Jul 2020The high strength-to-weight ratio property of titanium aluminide (TiAl) based intermetallic alloys makes researchers regard this type of material as a potential replacement for the heavier superalloys of nickel. These alloys have been applied ...Read more
Author:Veldkornet, DA; Adams, JB; Van Niekerk, LaraDate:Nov 2015This study investigated whether the current lateral boundary for estuaries in South Africa, i.e. the estuarine functional zone (EFZ), includes all estuarine habitats. The EFZ covers 173 930 ha in 304 estuaries/outlets nationally. Field surveys ...Read more
Author:Schulze, JEDate:Sep 1968This paper which is a continuation of technical report no .95, reports on some additional physical properties of Swiss and French double pique fabrics knitted with the same yarn at three different ratios of yarn.Read more
Author:Tlotleng, Monnamme; Masina, Bathusile N; Pityana, Sisa LDate:Jan 2017The use of titanium aluminides as high temperature materials in the aerospace and automobile industries is becoming a reality since their early research and development in 1955. Their mechanical properties at elevated temperatures make them ...Read more
Author:Kortidis, Ioannis; Swart, HC; Ray, Suprakas S; Motaung, David EDate:Apr 2019This study investigates the room temperature (RT) gas-sensing and ferromagnetic
behavior of p-type materials based on a comparison of NiO, Mn3O4, and CuO
nanostructures prepared using a hydrothermal method. The Mn3O4 nanorods based
sensor ...Read more
Author:Fuel Research InstituteDate:1954As explained in previous communications, the Institute has been of the option that the difficulties experienced with the Dense Medium Washery at South African Coal Estate could be largely attributed to changes in the properties of the heavy ...Read more
Author:Owonubi, SJ; Aderibigbe, BA; Mukwevho, E; Sadiku, ER; Ray, Suprakas SDate:Mar 2018In this research, hydrogel biocomposites were prepared from whey protein isolate (WPI), reduced graphene oxide (rGO), and synthetic polymers in varied ratios. Their physicochemical properties were evaluated by FTIR, SEM, TGA, AFM, and TEM. ...Read more
Author:Greben, JM; Gledhill, Irvy MA; Cooper, Antony K; De Villiers, RDate:Jan 2010The authors examine the question of stability of breakwater structures using the simulation software PhysX. This “physics engine” can be used to construct various packings of breakwater elements, each of which can be used to analyze the damage ...Read more
Author:May, F; Mikes, D; Bugan, Richard DH; Jovanovic, Nebojsa; Rozanov, ADate:Nov 2010In the use of unsaturated zone methods to estimate recharge, the basic assumption is made that recharge occurs by means of diffusive processes (i.e. piston flow occurs). In fractured environments the reliability of recharge estimate have been ...Read more
Author:Makoana, Nkutwane W; Yadroitsava, I; Möller, H; Yadroitsev, IDate:2018Global industrial adoption of laser-based powder bed fusion (LPBF) technology is still limited by the production speed, the size of the build envelope, and therefore the maximum part size that can be produced. The cost of LPBF can be driven ...Read more
Author:Tshabalala, Lerato C; Mathe, Ntombizodwa R; Chikwanda, HIlda KDate:May 2018In this paper, titanium powders from various sources were characterized to compare powder integrity for additive manufacturing by selective laser melting process. Selective laser melting by powder-bed based Additive Manufacturing (AM) is an ...Read more
Author:Giovannini, D; Romero, J; Leach, J; Dudley, Angela L; Forbes, A; Padgett, MJDate:Apr 2013Mutually unbiased bases (MUBs) play a key role in many protocols in quantum science, such as quantum key distribution. However, defining MUBs for arbitrary high-dimensional systems is theoretically difficult, and measurements in such bases ...Read more
Author:Mahamood, RM; Akinlabi, ET; Shukla, M; Pityana, Sisa LDate:2014This paper reports the material characterization of Ti6Al4V/TiC composite produced by laser metal deposition. The Ti6Al4V/TiC composites were deposited with a composition ratio of 50 wt.% Ti64l4V and 50 wt.% TiC. The depositions were achieved ...Read more
Author:Bayode, A; Akinlabi, ET; Pityana, Sisa LDate:Jun 2016Laser metal deposition (LMD) is an innovative manufacturing technique that uses laser to melt powders to fabricate fully dense components layer by layer. It is capable of processing different metallic powders and can also be used for consolidating ...Read more
Author:Gummow, RJ; Thackeray, MMDate:Dec 1993LT-LiC0.9Ni0.1O2 prepared at 400 degrees C with a structure that is intermediate between an ideal lithiated spinel and a layered structure has been investigated as an electrode in rechargeable Lithium cells; it delivers a voltage vs. pure ...Read more
Author:Cloete, M; Hart, RJ; Schmid, HK; Drury, M; Demanet, CM; Sankar, KVDate:Nov 1999Sub microscopic opaque particles from highly shocked granite-gneisses close to the core of the Vredefort impact structure have been investigated by means of micro-analytical techniques with high spatial resolution such as electron diffraction, ...Read more