Author:Horak, E; Rust, FCDate:Aug 1992Emulsion treatment of granular bases is used mostly as a rehabilitation option in South Africa. Emulsion treated bases (ETBs) have been used on an ad hoc basis in South Africa in the past. Considerable work has gone into the mix design of ...Read more
Author:Berman, R; Benade, RDate:Dec 2015The costs of logistics in South Africa are dominated by high transportation and fuel costs which are ultimately carried by consumers. An alternative regulatory framework for governing heavy vehicles is explored as a means to not only decrease ...Read more
Author:Skosana, Vusi J; Abu-Mahfouz, Adnan MIDate:Nov 2021Video encoding is challenging in the energy-constrained environments Wireless Multimedia Sensor Networks (WMSN) operate. Among the many design considerations when developing a video encoding scheme, the first is the sparsity transform, however, ...Read more
Author:Ledwaba, Lehlogonolo PI; Hancke, GP; Venter, HS; Isaac, Sherrin JDate:Jan 2018In past years, cryptography has been considered a difficult task to achieve on sensor nodes for the Internet of Energy (IoE) owing to the resource-constrained nature of 8-bit and 16-bit microcontroller units (MCUs). Previous attempts at ...Read more
Author:Stoltz, George G; Stoltz, MDate:Sep 2020In this paper, we model a real-time feasible rosette imager, consisting of a rosette scanner, an optical sensor and a deterministic image reconstruction algorithm. We fine-tune the rosette imager through selecting the appropriate sensor field ...Read more
Author:Arthur, Nana KK; Khodja, Malika; Moller, Heinrich; Rossouw, PierreDate:Nov 2017Metallic powders are widely used as the feedstock material for many additive manufacturing processes. Titanium alloys in particular are used in aerospace construction as an attractive alternative construction material due to the superior ...Read more
Author:Mabaso, M; Twala, B; Withey, Daniel J; Utete, SDate:Oct 2012Detection of messenger Ribonucleic Acid (mRNA) spots in fluorescence microscopy images is of great importance for biologists seeking better understanding of cell functionality. Fluorescence microscopy and specific staining methods make ...Read more
Author:Ndlovu, IM; Everson, RC; Chiuta, S; Neomagus, HWJP; Langmi, Henrietta W; Ren, JianweiDate:Dec 2017An experimental evaluation of a microchannel reactor was completed to assess the reactor performance for the catalytic decomposition of vaporised formic acid (FA) for H2 production. Initially, X-ray powder diffraction (XRD), elemental mapping ...Read more
Author:Magubane, Z; Tarwireyi, P; Abu-Mahfouz, Adnan MI; Adigun, MODate:Nov 2020Nowadays physical objects have an ability to connect to the internet, process, analyze the data to the real world through the Internet of Things (IoT). These physical objects have a limited processing space, storage, memory, and bandwidth. ...Read more
Author:Sokoya, O; Xu, HJ; Takawira, FDate:May 2008The performance analysis of high rate space–time trellis-coded modulation (HR-STTCM) using the Gauss–Chebyshev quadrature technique is presented. HR-STTCM is an example of space–time codes that combine the idea used in trellis coded modulation ...Read more
Author:Nxumalo, SL; Ntlatlapa, Ntsibane S; Mudali, P; Adigun, MODate:Aug 2009A routing metric is a measure used by a routing protocol to select a best path, without a routing metric a protocol will not know which path to use to send a packet. A number of routing metrics exist for WMN, but routing still remains a problem ...Read more
Author:Olukanmi, PO; Nelwamondo, Fulufhelo V; Marwala, TDate:Jan 2019Using benchmark datasets, we study the performances of three efficient clustering algorithms which find cluster centers using a fixed number of random samples. The algorithms are also compared with two other (well-known) algorithms, namely ...Read more
Author:Mathekga, HI; Oboirien, BO; Engelbrecht, A; North, Brian C; Premlal, KDate:Jul 2016In this study, the experimental results of the oxy-fluidized combustion of three different South African coals (sub-bituminous) are presented. The coal samples were denoted Coal A, B, and C. Three combustion atmospheres—air, oxy (21% O(sub2)/79% ...Read more
Author:Mnguni, S; Pragasen, M; Abu-Mahfouz, Adnan MI; Adigun, MDate:Mar 2021LoRa Networks is one of the fast-growing and promising technologies to enable communications for the Internet of Things (IoT) devices on a large scale or long-range communication. Spreading Factors (SF) plays a significant role in enabling ...Read more
Author:Ogbodo, E; Dorrell, D; Abu-Mahfouz, Adnan MIDate:Jun 2019Traditional power grids have unidirectional power flow and often information transfer, this limits their capacity for scalability, efficiency, and renewable energy integration. Smart grids (SGs) are being developed as more intelligent power ...Read more
Author:Engelbrecht, GN; Schmitz, P; Bean, WLDate:Sep 2009The development of performance indicators in the military is dependent on the measurability of its associated strategies. Von Clausewitz (1976) argues that nations are either at war or preparing for war. It follows that military forces should ...Read more
Author:Blaauw, Ciara; Potgieter, Monique; Cilliers, Jacques EDate:Apr 2020Commercial off the shelf antennas make it possible to perform rapid initial system tests and proof of concepts experiments. This paper reports on the antenna performance of a cost effective commercial off the shelf printed Log-periodic antenna ...Read more
Author:Roro, Kittessa TDate:Jun 2016Performance monitoring of different module technologies and system configurations of Photovoltaic (PV) systems in South Africa is rare, resulting in-few reports based on field results of PV systems installed and operated in South Africa. The ...Read more