• An Information Systems Approach to the Proactive Management of Subscriber Identification Modules in Industry 

  Prinsloo, J.; Mathews, M.; du Plessis, J.; Vosloo, J. (SAIIE, 2018)

  The Industry 4.0 paradigm focuses heavily on decentralisation, modularity and interoperability. These principles form the foundation for an effective Industry 4.0 ecosystem. The South African heavy industry still relies ...
• Sensitivity of static energy meter reading errors to changes in non-sinusoidal load conditions 

  Marais, Z.; Rens, J.; Van den Brom, H.E.; Rietveld, G.; Van Leeuwen, R. (IEEE, 2019)

  Previous studies regarding static energy meter errors under non-sinusoidal load conditions have shown that these meters can produce erroneous readings. This paper describes an investigation done using loads consisting ...
• Neural models for benchmarking of truck driver fuel economy performance 

  Hoffman, Alwyn J. (INSTICC, 2019)

  The transport industry is a primary contributor towards emissions that impact climate change. Fuel economy is also of critical importance to the profitability of road freight transport operators. Empirical evidence identified ...
• Catalytic dehydrogenation onset of liquid organic hydrogen carrier, perhydro-dibenzyltoluene: the effect of Pd and Pt subsurface configurations 

  Ouma, C.N.M.; Modisha, P.M.; Bessarabov, D. (Elsevier, 2019)

  Perhydro-dibenzyltoluene (H18-DBT) is the hydrogen-rich form of the liquid organic hydrogen carrier (LOHC), dibenzyltoluene. The reversible catalytic hydrogenation and dehydrogenation of LOHCs has made them highly favored ...
• Density functional theory studies of the SrC and SrN compounds 

  Beldi, L.; Obodo, K.O.; Bendaoud, H.; Abbar, B.; Bouhafs, B. (Elsevier, 2019)

  The structural, magnetic, elastic, dynamical and thermodynamic properties of the SrC and SrN compounds were studied using density functional theory. We found that the CsCl and NaCl phases have the lowest energy configurations ...
• Households water quality in O’Kiep-South Africa and community perception of related health risks 

  Erdogan, I.G.; Fosso-Kankeu, E.; Waanders, F.B.; Ntwampe, S.K.O.; Hoth, N. (Balaban Publishers, 2019)

  South Africa faced challenges related to potable water quality that has periodically deteriorated, coupled with inconsistent supply of tap water (TW) to households. These challenges are a primary exasperation in the arid ...
• First principles study of single and multi-site transition metal dopant ions in MoS2 monolayer 

  Obodo, Kingsley Onyebuchi; Ouma, Cecil Naphtaly Moro; Besserabov, Dmitri; Obodo, Joshua Tobechukwu; Braun, Moritz (Elsevier, 2019)

  Using first-principles calculation, a systematic study on the effect of transition metal (TM: V, Cr, Mn, Fe, Co, Ni) dopant atoms in the MoS2 monolayer as potential spintronic, catalytic and optoelectronic materials were ...
• Predicted dynamically stable new phase for CrO2 compound: DFT + U calculations 

  Bendaoud, H.; Obodo, K.O.; Bouhafs, B. (Elsevier, 2019)

  The structural, vibrational, elastic, mechanical, thermodynamic and magnetic properties of CrO2 compound in different phases have been studied using first-principles calculations based on density functional theory. Because ...
• An ab initio study on the transition path of carbon dioxide at high pressure: evidence for a new intermediate P(4)over-barm2 phase 

  Benabdelkader, I.; Obodo, K.O.; Bendaoud, H.; Beldi, L.; Bouhafs, B. (Elsevier, 2019)

  The structural and dynamical behaviour of seventeen solid polymorph of the non-molecular CO2 compound was evaluated using the full potential linear augmented plane wave method (FP-LAPW) in the framework of density functional ...
• Finite element density functional calculations for light molecules using a cusp factor to mitigate the Coulomb potential 

  Braun, Moritz; Obodo, Kingsley Onyebuchi (EDP Sciences, 2019)

  Finite element calculations have been performed in Cartesian coordinates using the density functional approach for a number of small molecules. In order to aid convergence of the orbitals and total energies a suitable cusp ...
• Groundwater as an alternative source to irregular surface water in the O'Kiep area, Namaqualand, South Africa 

  Erdogan, I.G.; Fosso-Kankeu, E.; Waanders, F.B.; Ntwampe, S.K.O.; Hoth, N. (Elsevier, 2019)

  Water insecurity is a growing concern globally and the role of groundwater and aquifers in buffering the effects of climate variability and change is increasingly acknowledged due to extended periods of drought in arid ...
• A system CFD model of the heat transfer in a prismatic block of a VHTR 

  Nel, G.J.; Du Toit, C.G. (SACAM, 2018)

  The conduction heat transfer through the prismatic blocks containing the fuel elements in a Very High Temperature Reactor (VHTR) is of crucial importance for the proper operation of the reactor under normal operating ...
• Comparison of the modelled maximum wireless link distance for TVWS and Wi-Fi within South African regulatory constraints: which technology wins and in which scenarios? 

  Lysko, Albert A.; Burger, Chris R.; Hagopian, Ellie (IEEE, 2019)

  The work compares Wi-Fi and television white space (TVWS) technologies for practical broadband communication links, specifically in rural areas. The paper starts with an overview of advantages and limitations of Wi-Fi and ...
• Modelling of convection heat transfer in the SNU Riser Heat transfer Experimental Facility (RHEF) 

  Du Toit, C.G.; Shin, D.H.; Park, G.C. (SACAM, 2018)

  The Reactor Cavity Cooling System (RCCS) of a High Temperature Gas-cooled Reactor (HGTR) plays an important role in ensuring the integrity of the HTGR during normal operating and accident conditions. The performance of ...
• CFD analysis of thermal dispersion in a structured packed bed 

  Vermaak, H.J.; Du Toit, C.G. (SACAM, 2018)

  Packed beds are generally modelled in a partial manner to avoid computational costs. This implies that only a small portion of the representative bed is modelled explicitly in CFD simulations, usually by assuming ...
• Simulation of suction recirculation in double suction centrifugal pumps 

  Van der Walt, J.P.; Kruger, J.-H.; Du Toit, C.G. (SACAM, 2018)

  Part-load operation conditions of a centrifugal pump will impose potentially strenuous effects on the operation and reliability of the turbomachine in question due to the risk of suction recirculation. Suction recirculation ...
• Solar powered peltier cooling storage for vaccines in rural areas 

  Buitendach, Henning; Jiya, Immanuel N.; Gouws, Rupert (IJEECS, 2019)

  The research presented in this paper proposes a new design of a vaccine cooling and storage unit that can keep vaccines in the cold chain (2°C to 8°C). This design was done to facilitate effective completion of the ...
• Removal of naphthalene from simulated wastewater through adsorption-photodegradation by ZnO/Ag/GO nanocomposite 

  Mukwevho, Nthambeleni; Fosso-Kankeu, Elvis; Waanders, Elvis; Gusain, Rashi; Kumar, Neeraj (Elsevier, 2019)

  In this study, a ZnO/Ag/GO nanocomposite was synthesised and used as photocatalyst for effective photodegradation of naphthalene from simulated wastewater under visible light. Chemical and morphological characterisation ...
• Evaluation of catalyst activity for release of hydrogen from liquid organic hydrogen carriers 

  Modisha, Phillimon; Garidzirai, Rudaviro; Ouma, Cecil N.M.; Bessarabov, Dmitri; Gqogqa, Pumeza (Elsevier, 2019)

  This contribution investigate the effect of parameters for production of hydrogen by catalytic dehydrogenation of perhydrodibenzyltoluene (H18-DBT). The sensitivity of the dehydrogenation reaction to temperature (290–320 ...
• Visible light-excitable ZnO/2D graphitic-C3N4 heterostructure for the photodegradation of naphthalene 

  Mukwevho, N.; Fosso-Kankeu, E.; Waanders, F.; Bunt, J.; Kumar, N. (Balaban Publishers, 2019)

  In this study, ZnO/g-C3 N4 heterostructure was synthesized with enhanced photodegradation potential for polycyclic aromatic hydrocarbons (PAHs) (viz. naphthalene) in water using visible light. The as-prepared catalysts ...

View more