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Browsing Conference Proceedings by Title

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  • Manufacturing, microstructure and mechanical properties of selective laser melted Ti6Al4V-Cu 
    Kinnear, A.; Dzogbewu, T. C.; Krakhmalev, P.; Yadroitsava, I.; Yadroitsev, I. (LiM "Lasers in manufacturing" conference, Munich,, 2017)
    Ti6Al4V is a commonly used biomedical alloy because of its suitable mechanical and biocompatible properties. Infection at the bone–implant interface is the most probable reason for implant failure directly after implantation. ...
  • Mobile Learning Usability Evaluation Using Two Adoption Models 
    Mafunda, Boniswa; Swart, Arthur; Bere, Aaron (IEEE Xplore: Global Engineering Education Conference (EDUCON), 2017)
    The Central University of Technology, Free State has introduced the use of e-books as opposed to printed hard-cover textbooks for students. This is in line with international campaigns seeking the adoption of e- books ...
  • Modeling of tree-roots effects on pavement stresses and strains 
    Mostafa, Mohamed; Adedeji, Jacob Adedayo (Civil Engineering and Urban Planning IV: 4th International Conference on Civil Engineering and Urban Planning, Beijing, China, 25-27 July 2015, )
  • Modelling and simulation of a power converter for variable speed hydrokinetic systems 
    Ngancha, P.B.; Kusakana, K.; Markus, E. (International Conference on the Domestic Use of Energy (DUE), 2017)
    This study presents the control scheme model of a micro-hydrokinetic turbine system equipped with a permanent magnet synchronous generator (PMSG). A power conversion system model is developed to allow a variable speed ...
  • Modelling of Fly Ash Stabilized Base Layers 
    Adedeji, Jacob Adedayo; Mostafa, Mohamed (The 4th International Conference on Civil Engineering and Urban Planning (CEUP 2015), At Beijing, China, 2015)
    In South Africa and developing countries, the base or sub-base layer serves as the main structural element or bearing capacity of the pavement. As a result, more focus is placed on the base or sub-base for accurate designing ...
  • MODELLING TO RESOLVE DESIGN LINKED DELAY IN CONSTRUCTION PROJECTS 
    DAS, DILLIP KUMAR (International Conference on Infrastructure Development in Africa, 2016)
    Consultants are the major role players in design of construction projects. It is well acknowledged that the consultant and design linked issues are more or less integrated and influence delay in a project. Therefore, the ...
  • Moisture Content Numerical Simulation on Structural Damage of Hot Mix Asphaltic Pavement 
    Abejide, O.S.; Mostafa, M.M.H. (IOP Conf: 2nd International Conference on Civil Engineering and Materials Science, 2017)
    Considering the merits of road transportation in the economy and communication activities of the modern societies, it is imperative to design a safe, stable, efficient and cost effective road that will lead to increased ...
  • The Movement Of Soil Moisture Under A Government Subsidy House 
    Bester, D.M.; Stott, P.R.; Theron, E. (Bloemfontein: Central University of Technology, Free State, 2016-04)
    The South African government's attempts to provide affordable, subsidised housing for the very poor has suffered from a large number of structural failures, many due to heaving foundations. These houses are particularly ...
  • NON-DESTRUCTIVE TESTING OF THE PARTS MANUFACTURED BY DIRECT METAL LASER SINTERING 
    Kouprianoff, D.; du Plessis, A.; Yadroitsava, I.; Yadroitsev, I. (SUNConferences, 17th Annual Conference of the Rapid Product Development Association of South Africa, 2016)
    Interest in Additive Manufacturing (AM) has grown considerably in the past decades. The industry has gained the great benefits from this type of technologies. The main advantages being geometrical freedom that allows ...
  • Numerical Analysis of Free Convection Casson Fluid Flow from a Spinning Cone in non-Darcy Porous Medium with Partial Slip and Viscous Dissipation Effects 
    Makanda, Gilbert; Sibanda, Precious (International Journal of Mathematical and Computational Methods, 2016)
    In the present study, a numerical analysis on free convection Casson fluid flow from a spinning cone in non-Darcy porous medium with radiation, partial slip, cross diffusion and viscous dissipation is considered. The surface ...
  • Numerical Simulation of Pavement Life Deterioration: Tree-Roots’ Effects 
    Hassan, M. Mostafa; Adedeji, J.A. (China: Proceedings of the 5th International conference on civil engineering and urban planning (CEUP 2016), 2016)
    Flexible pavement is usually designed to last for at least 20 years, however sometimes the first failure is formed after the first year of use. This failure has been associated with; overloading of the structure, use of ...
  • On the micciancio-voulgaris algorithm to solve the long-horizon direct MPC optimization problem 
    Raath, Johan; Mouton, Toit; Geyer, Tobias (IEEE Xplore: International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), 2017)
    It is widely accepted that model predictive control (MPC) with long prediction horizons yields, in general, a better performance than with short horizons. In the context of power electronic systems, the main advantages ...
  • Optimal operation control of a grid-connected photovoltaic-battery hybrid system 
    Kusakana, Kanzumba (IEEE Xplore: PowerAfrica, IEEE PES, 2016)
    In this work, the optimal power scheduling for a grid-connected photovoltaic-battery hybrid system is proposed to sufficiently explore solar energy and to benefit customers at demand side. The developed model for the ...
  • Optimal operation of parallel-connected diesel generators for remote electrification through energy management approach 
    Kusakana, Kanzumba (IEEE PES PowerAfrica, 2017)
    In this paper, optimal scheduling and energy management concepts are used to demonstrate the operational cost saving achievable using multiple paralleled diesel generators over a “Single” diesel generator unit for ...
  • Optimal Power Flow of a Battery/Wind/PV/Grid Hybrid System: Case of South Africa 
    Unknown author (Springer International Publishing AG: Smart Energy Grid Design for Island Countries, 2017)
    Photovoltaic and wind systems have been demonstrated to be sustainable alternatives of producing electricity in rural electrification, particularly in islanded applications. Currently, the advancement of research in the ...
  • OPTIMAL PROCESS PARAMETERS FOR IN SITU ALLOYED Ti15Mo STRUCTURES BY LASER POWDER BED FUSION 
    Dzogbewu, T.C.; Yadroitsev, I.; Krakhmalev, P.; Yadroitsava, I.; Du Plessis, A. (Solid Freeform Fabrication 2017: Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium–An Additive Manufacturing Conference, 2017)
    Powder Bed Fusion (PBF) is a manufacturing method with the advantage that it can produce objects of complex geometry. Additionally, it opens great opportunities to synthesize new materials from elemental powder using an ...
  • Optimal scheduling of a grid-connected hydrokinetic-battery system under Time of Use tariff 
    Kusakana, K. (IEEE Xplore: Domestic Use of Energy (DUE), 2016 International Conference, 2016)
    In this work, the optimal power scheduling for a grid-connected hydrokinetic-battery hybrid system is proposed to sufficiently explore hidrokinetic energy and to benefit customers at demand side. The developed model ...
  • Optimized scheduling of diesel - renewable systems with pumped hydro storage 
    Bokabo, B.; Kusakana, K. (IEEE Xplore: Industrial and Commercial Use of Energy (ICUE), 2016 International Conference, )
    The present paper develops a model to optimize the daily operation of a hybrid energy system consisting of a photovoltaic unit, a wind unit, a pumped hydro storage system and a diesel generator. The main purpose of the ...
  • PERCEIVED ENJOYMENT OF MOBILE MATHEMATICAL LEARNING GAMES 
    Venter, Marisa (UNISA: ISTE Conference Mathematics, Science and Technology Education, 2016)
    Perceived enjoyment is often reckoned as one of the most important factors influencing consumer behavior in educational learning material. Without the educational application providing a positive experience, children are ...
  • PERCEPTIONS OF PARENTS AND TEACHERS OF THE USE OF MOBILE APPS FOR MATHSEMATICAL EDUCATION 
    Venter, Marisa; de Wet, Lizette; Swart, James (UNISA: ISTE Conference Mathematics, Science and Technology Education, 2016)
    Mobile is full of exciting technologies, and approaches that can help us transform how we teach, work (Stead, 2014). This statement aptly points to the current global trends where many teachers and parents are turning ...

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