Author:Engelbrecht, CJ; Landman, WADate:Sep 2015The link between interannual variability of seasonal rainfall over the Cape south coast of South Africa and different synoptic types as well as selected teleconnections is explored. Synoptic circulation over the region is classified into ...Read more
Author:Russo, C; Veitch, J; Carr, M; Fearon, G; Whittle, Christo PDate:Mar 2022A regional assessment of three global ocean reanalysis products is presented for southern Africa’s major oceanographic features. The reanalyses include Mercator Ocean’s Global Reanalysis (GLORYS), the Commonwealth Scientific and Industrial ...Read more
Author:Machele, IL; Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Kurien, AMDate:Mar 2024The deployment of isolated microgrids has witnessed exponential growth globally, especially in the light of prevailing challenges faced by many larger power grids. However, these isolated microgrids remain separate entities, thus limiting ...Read more
Author:Du Plessis, WPDate:Oct 2009A new synthesis procedure for interdigital filters with shorted-pin feeds is developed by relating the coupling factors and external Qs to the physical structure of the filter. This new procedure is easily understood and applied, extremely ...Read more
Author:Funke, Nicola S; Nienaber, S; Gioia, CDate:Feb 2012From an environmental perspective, South Africa faces many challenges that affect both its ecological biodiversity as well as its socio- economic and socio-political security . One of the most prominent challenges is acid mine drainage (AMD) ...Read more
Author:Meissner, RichardDate:Nov 2015Interest groups are pervasive phenomena of modern society. Although this is so, water governance researchers generally do not include them in their research endeavours. This is especially the case regarding research on transboundary rivers. ...Read more
Author:Letting, LK; Hamam, Y; Abu-Mahfouz, Adnan MIDate:Jul 2017The application of simulation optimization in water distribution network analysis and design is a promising method for generating solutions to existing challenges. The absence of a standard interface for coupling the open source EPANET software ...Read more
Author:Bogaers, Alfred EJ; Kok, S; Reddy, BD; Franz, TDate:Oct 2016In this paper we outline the use of radial basis function interpolation (RBF) to transfer information across non-matching and nonconforming interface meshes, with particular focus to partitioned fluid-structure interactions (FSI). In general, ...Read more
Author:Makgwane, Peter R; Ray, SSDate:Oct 2013The development of green catalytic methods for chemical synthesis and energy generation based on nanocoated catalyst microfluidic systems is a growing area of innovative research. The interface between heterogeneous catalysis and microchannel ...Read more
Author:Malgas, GF; Arendse, CJ; Mavundla, S; Cummings, FRDate:Aug 2008Interfacial analysis of the rrP3HT samples spincoated on a glass substrate was studied in detail using transmission electron microscopy (TEM) and SEM measurements. Very homogeneous and smooth polymer (P3HT and PEDOT:PSS) layers are observed ...Read more
Author:Mathaba, S; Dlodlo, N; Smith, Andrew C; Makitla, I; Sibiya, G; Adigun, MDate:May 2012A critical issue in inventory management is having accurate and timely information on stock levels. Therefore advantage should be taken of technologies that can reduce the impact of counterfeits, expired products and misplaced products. One ...Read more
Author:Gbadamosi, SA; Hancke, GP; Abu-Mahfouz, Adnan MIDate:Nov 2022In dense, interference-prone 5G narrowband Internet of Things (NB-IoT) networks, device-to-device (D2D) communication can reduce the network bottleneck. We propose an interference-avoidance resource allocation for D2D-enabled 5G NB-IoT systems ...Read more
Author:Olwal, TO; Van Wyk, BJ; Djouani, K; Hamam, Y; Siarry, P; Ntlatlapa, Ntsibane SDate:Sep 2009Multi-Radio Multi-Channel (MRMC) systems are key to power control problems in WMNs. In this paper, we present a dynamic power control for MRMC WMNs. First, WMN is represented as a set of disjoint Unified Channel Graphs (UCGs). Second, each ...Read more
Author:Govender, P; Couling, VWDate:Sep 2010An adapted Michelson interferometric technique was used to measure strain induced birefringence in perspex. The birefringence was then used to determine the Kerr constant in perspex. The result obtained is compared to a colarimetric result ...Read more
Author:Grobler, MMDate:Jul 2010Interfraud is any fraud scheme that uses one or more online service to present fraudulent solicitations to prospective victims, to conduct fraudulent transactions, or to transmit the proceeds of fraud to financial institutions or to others ...Read more
Author:Gaigher, JLDate:1977This report deals with the reactivity of mineral matter prepared from coal by the radio-frequency oxidation method, with the using X-ray diffraction to detect mineral phase changes, and possible react ion mechanisms.Read more
Author:Gaigher, JLDate:1976The mineral matter factors for some coal product samples determined by the method of radio--frequency oxidation, compared with results from an earlier survey (Technical Memorandum No021 of 1971), appear to have an acceptable precision.Read more
Author:Meintjies, AADate:1967A preliminary study was made of the application of pyrolysis-gas chromatography to coal dust. A correlation between the explosibility index of a coal and the nature of its volatile matter would prove useful.Read more