Author:Nomqonde, BH; Mashinini, PM; Lekoadi, Paul M; Masina, Bathusile NDate:Nov 2022This study investigated the microstructure evolution of the TiC/Ti-6Al-4V matrix composite produced using a 1073 nm continuous wave (CW), IPG Ytterbium fibre laser. The influence of thermal gradient, overlap, and re-melting of the previous ...Read more
Author:Seerane, MN; Chikwanda, HK; Focke, W; Machaka, RonaldDate:Oct 2013Powder loading is one of the most critical factors in metal injection moulding (MIM) technology. It largely determines the success or failure of the subsequent MIM processes. A gas-atomized Ti6Al4V powder was investigated to determine an ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Siyasiya, Charles; Masina, Bathusile NDate:Nov 2023This study presents the investigation of TiB distribution characteristics on the microstructure of in-situ synthesized TiB/Ti6Al4V single-track composites manufacture with laser metal deposition. Ti6Al4V alloy was reinforced by adding TiB2 ...Read more
Author:Adeniran, A; Motsatsi, Lorato L; Mbanga, S; Ayesu-Koranteng, E; Shakantu, WDate:2022Solid waste is a global challenge that is more pronounced in developing countries such as South Africa, where its management is a major concern. The government has recently made a concerted effort to engage the public in sustainable waste ...Read morecbna
Author:Badou, DF; Afouda, A; Diekkruger, B; Kapangaziwiri, EvisonDate:Jul 2015West Africa has experienced severe droughts during 1970s and 1980s. On the other hand, the region is characterized by high inter-annual rainfall variability and there seems to be a recent recovery. But has the drought stopped? To answer this ...Read more
Author:Khutsoane, Oratile C; Isong, B; Abu-Mahfouz, Adnan MIDate:Oct 2017Internet of Things (IoT) has revolutionized the traditional Internet where only human-centric services were offered. It has enabled objects to have the ability to connect and communicate through the Internet. IoT has several applications such ...Read more
Author:Smith, Andrew C; Butgereit, LDate:Nov 2012The demand for electrical energy is increasing globally. Both the average as well as the anticipated peak demand must be considered by the supplier when designing an electrical supply. We present an Internet of Things – based system, and a ...Read more
Author:Nigussie, E; Musumba, G; Tegegne, T; Lemma, A; Mekuria, FissehaDate:Nov 2020Ensuring food security has become a challenge in Sub-Saharan Africa (SSA) due to combined effects of climate change, high population growth, and relying on rainfed farming. Governments are establishing shared irrigation infrastructure for ...Read more
Author:Chauke, Mapoo D; Gama, G; Sebetoa, Matlapane R; Marimuthu, Luveshan; Mavhona, TshifhiwaDate:Jul 2023Supply Chain Management (SCM) has evolved over the years, from mechanisation in the 1920s to intelligentisation in the 2000s. Major changes in supply chain are due to challenges in the environment, such as the fragmentation of SCM activities ...Read more
Author:Mabuza-Hocquet, Gugulethu P; Nelwamondo, Fulufhelo VDate:Oct 2012Poor digital iris images prove to be a challenge when iris features have to be recognised and extracted for use in iris classification. To ensure the accuracy of a typical iris recognition system, acquired
iris images have to undergo a ...Read more
Author:Schwering, PBW; Bezuidenhout, DF; Gunter, WH; Le Roux, FPJ; Sieberhagen, RHDate:Apr 2008Present-day naval operations take place in coastal environments as well as narrow straits all over the world. Coastal environments around the world are exhibiting a number of threats to naval forces. In particular a large number of asymmetric ...Read more
Author:Martim, E; Dlamini, M; Van Greunen, D; Eloff, J; Herselman, Martha EDate:Mar 2009Security and usability are crucial factors for the successful of any e-commerce system. However, they have traditionally been considered a design trade-off. In an effort to align them, this paper highlights the design principles and guidelines ...Read more
Author:Petzer, EngelaDate:Jul 2016Planning is inherently about looking ahead. The profession holds the promise of bringing hope of a better future. Among planners it is sometimes taken for granted that planning is concerned with the future and that planners will confront the ...Read more
Author:Roro, Kittessa TDate:Jul 2015This presentation reflects on photovoltaic (PV) generated electricity in South Africa, and whether it is a cheaper alternative to current generated electricity in the country. It is projected that by 2019 the installed capacity of PV could ...Read more
Author:Wazna, TM; Balamesh, AS; Abdul Gaffar, MYDate:Oct 2015In Inverse Synthetic Aperture Radar (ISAR) imaging, the Range Instantaneous Doppler (RID) method is used to compensate for the nonuniform rotational motion of the target that degrades the Doppler resolution of the ISAR image. The Instantaneous ...Read more
Author:Setshedi, I; Peter, Xolani K; Fouché, Gerda; Myer, M; Dewar, JDate:01 Sep 2010The genus Sceletium is classified as part of the Family Mesembryanthemaceae and belongs to the sub-family Mesembryanthemoideae. Some of the names used when referring to this genus are ‘living skeletons’ or ‘skeleton plants’ (http://ujdigisp ...Read more
Author:Chikwamba, Rachel KDate:29 Sep 2006The presentation outlines the global status of food security and implications for meeting the Millennium Development Goals targets, with particular focus on Sub-Saharan Africa; trends in hunger, food availability, food distribution, consumption; ...Read more
Author:Helbig, M; Engelbrecht, APDate:Jun 2013In recent years a number of algorithms were proposed to solve dynamic multi-objective optimisation problems. However, a major problem in the field of dynamic multi-objective optimisation is a lack of standard performance measures to quantify ...Read more
Author:Van Zyl, TL; Parbhoo, C; Moodley, D; Cwela, B; Umuhoza, D; Shabangu, P; Vahed, AnwarDate:May 2009The paper focuses on the information technology infrastructure required for the evaluation and monitoring of risk relating to floods in South Africa. It may be argued that in the context of developing countries, flood preparedness is more ...Read more