Author:Machio, Christopher N; Chikwanda, HK; Chikosha, SDate:Oct 2010This article reports results of a study to determine the effect of process control agent (PCA) on the characteristics of Ti-Mg powders during milling. It has been shown that a 2% increase in PCA content leads to up to a 40% increase in yield ...Read more
Author:Reddy, J; Erasmus, C; Mlotshwa, L; Taylor, J; Dlamini, Nomusa RDate:01 Sep 2010Sorghum, a staple food in Africa, does not contain adequate amounts of provitamin A carotenoids to address the problem of vitamin A deficiency which affects up to 31 million people on the continent1. One attempt to solve this problem is through ...Read more
Author:Mokotedi, O; Watt, P; Pammenter, NDate:Nov 2011The purpose of this study was to deepen our understanding of the field performance of micro- and macro-propagated Eucalyptus grandis x nitens (GN), in comparison with seed-propagated E. grandis and E. nitens. The emphasis was on the relationship ...Read more
Author:Steenkamp, Anton J; Berman, Robert B; Kemp, Lana; De Saxe, Christopher CDate:Jul 2019The paved road network is a critical asset to any economy. South Africa has a paved road network that has an estimated value in excess of R2 trillion. This asset is however under threat as there was a backlog in maintenance of more than R197 ...Read more
Author:Steyn, WJvdM; Haw, MDate:Jul 2005Road engineers usually maintain roads with the objective of supplying a road surface with a certain serviceability standard. This serviceability standard typically include aspects such as the allowable rutting, skid resistance and riding ...Read more
Author:Mvelase, Gculisile M; Anochie-Boateng, Joseph; Msibi, LLDate:Jul 2016The railway industry in South Africa is facing a problem where passage of trains on the heavy coal haul lines are causing degradation by means of wear (roundness) of ballast materials, and consequently, leading to differential track settlement ...Read more
Author:Anochie-Boateng, Joseph; Komba, Julius J; Ventura, D; Verhaeghe, Benoit MJADate:Sep 2011This study emanated from the revision of South African mechanistic-empirical pavement design method. At the CSIR road pavement laboratory, the bulk relative density (BRD) of compacted hot-mix asphalt (HMA) mixes is determined on cores and ...Read more
Author:Bayode, A; Akinlabi, ET; Pityana, Sisa L; Shongwe, MBDate:Feb 2017Laser metal deposition (LMD) is one of the additive manufacturing technologies that is used in the production of fully dense parts layer by layer. This innovative manufacturing process has the potential to reduce the weight, time and cost of ...Read more
Author:Mfusi, BJ; Tshabalala, Lerato C; Popoola, API; Mathe, Ntombizodwa RDate:Oct 2018Additive manufacturing is currently applied across a broad material selection and it is growing in production volume and economic impact. Aluminium is one of the materials that play a significant role in the aerospace industry because of its ...Read more
Author:Karsten, AE; Singh, ADate:Jun 2009Computer modeling can be a valuable tool to determine the absorption of laser light in different skin layers. For this study, the optical properties of three different skin tumors were used in the model to evaluate the effect on penetration ...Read more
Author:Mienie, S; Basappa Ayanna, Manjunath; Pratt, Lawrence E; Roro, Kittessa T; Diale, MDate:Jun 2018Soiling is an important and unpredictable factor that affects PV plant performance. Soiling is dependent on so many factors making it hard to quantify and accurately incorporate in PV prediction models and levelized cost of electricity (LCOE). ...Read more
Author:Spangenberg, D-M; Dudley, Angela L; Neethling, P; Forbes, A; Rohwer, EDate:Aug 2013SLMs used for spatial modulation of lasers are often used in conjunction with very narrow bandwidth laser light where diffractive dispersion could be approximated as a constant. It is known that diffractive dispersion is inversely proportional ...Read more
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: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: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: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: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:Pandelani, Thanyani A; Ahmed, RDate:Oct 2014Lower leg injury risk is commonly assessed using lower limb surrogates. The HIII and the THOR-Lx has been shown to have low biofidelity due to their geometry and material properties. A new surrogate (the MIL-Lx) was developed to address these ...Read more