Author:Maistry, N; Van Coller, J; Scutz, RADate:Sep 2015It is essential to detect corona discharge as a symptom of insulation breakdown in high voltage (HV) applications. However accuracy of such measurement is often degraded due to the existence of solar background noise in the signal. Fraunhofer ...Read more
Author:Malwela, T; Ray, Suprakas SDate:2014This article reports the crystal growth behavior of biodegradable polylactide (PLA)/poly[(butylene succinate)-co-adipate] (PBSA) blend thin films using atomic force microscopy (AFM). Currently, polymer thin films have received increased ...Read more
Author:Abdul Gaffar, MY; Nel, Willem AJDate:Oct 2007ISAR imaging has potential in assisting with the classification of non-cooperative targets. Blurred ISAR imagery may however lead to misleading classification results. Much research has been done to understand some of the causes of distortion ...Read more
Author:Sebe, ID; Sithole, ME; Modiba, RosinahDate:Dec 2022Permanent magnet-based technologies are focusing on the use of t-phase magnetic alloys. The t-MnAl permanent magnetic alloys are interesting candidates to fill the performance gap between the expensive rare-earth-based magnets and the low ...Read more
Author:Frieslaar, Ibraheem; Irwin, Barry VWDate:Sep 2017This research investigates changes in the electromagnetic (EM) signatures of a cryptographic binary executable based on compile-time parameters to the GNU and clang compilers. The source code is compiled and executed on the Raspberry Pi 2 ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Adeosun, S; Pityana, Sisa LDate:Sep 2021Using a focused ion beam TTX-NHT3 Nanoindentation tester with a load of 500 mN, we study the micromechanical properties of laser-deposited AlCoCrFeNiCu high entropy alloy coatings. The indentation tests conducted were used to examine the ...Read more
Author:Miya, LE; Sithole, ME; Modiba, RosinahDate:Dec 2021The development of new Nd-Fe-B permanent magnets continues to be a pressing matter for the transition to a green economy. Permanent magnets have become significant in applications of highly efficient energy conversion machines and devices. ...Read more
Author:Mashoko, L; Bean, WL; Steyn, WJvdMDate:Jul 2014The potential environmental impacts of deteriorating road conditions on logistics systems and the national economy have not received significant attention. This study gives an estimate of the potential environmental costs of deteriorating ...Read more
Author:Badenhorst, Jacob AC; De Wet, FebeDate:Nov 2021Sufficient target language data remains an important factor in the development of automatic speech recognition (ASR) systems. For instance, the substantial improvement in acoustic modelling that deep architectures have recently achieved for ...Read more
Author:Lubisi, Sibusiso X; Cooper, Antony KDate:Aug 2015This study explored the availability of and accessibility to, healthy and varied food in the Hatfield and Hillcrest suburbs of Tshwane, South Africa. These suburbs are adjacent to the main campus of the University of Pretoria and house many ...Read more
Author:Nice, Jako A; Bole, SheldonDate:Jul 2016This paper reports findings for an innovative architectural methodology in spatial analytics, for application in characterising microbial load and distribution to spatial planning and functional use in inhibiting health care acquired infections ...Read more
Author:Mpanza, Z; Nyembwe, D; Nel, HDate:Jul 2013In 2007 alone, twenty six foundries were closed down when the castings industries directory was released. A high scrap rate due to a lack of quality management is one of the root causes of low productivity and low profits, resulting in closures. ...Read more
Author:Kupfer, S; Santamaria-Aguilar, S; Van Niekerk, Lara; Lück-Vogel, MelanieDate:Jan 2022Recent studies have drawn special attention to the significant dependencies between flood drivers and the occurrence of compound flood events in coastal areas. This study investigates compound flooding from tides, river discharge (Q), and ...Read more
Author:Chunilall, Viren; Bush, T; Erasmus, RMDate:Mar 2012The changes in lignocellulosic composition of four hardwoods, i.e. Eucalyptus grandis camaldulensis (E. gc), E. grandis urophylla (E. gu), E. dunnii and E. nitens during different delignification processes were investigated using confocal ...Read more
Author:Rossouw, M; Theron, AKDate:Jul 2009This paper gives an overview of the present investigation on the wave climate around the South African coast and possible trends therein, due to climate change effects on the oceans. Preliminary findings indicate that there may be long-term ...Read more
Author:Madonsela, Sabelo; Cho, Moses A; Ramoelo, Abel; Mutanga, ODate:Jun 2021The emergence of the spectral variation hypothesis (SVH) has gained widespread attention in the remote sensing community as a method for deriving biodiversity information from remotely sensed data. SVH states that spectral heterogeneity on ...Read more
Author:Boodhraj, Kirodh; Vichi, M; Smit, Jacoba EDate:Sep 2017A one-dimensional ocean physical model was implemented in the sub-Antarctic Southern Ocean using the Nucleus for the European Modelling of the Ocean (NEMO) model. It was used to examine the effects of the turbulence response of the simulation ...Read more
Author:Focke, RWDate:Feb 2015The findings presented in this thesis support the hypothesis that Interval Algebra (IA), as a temporal reasoning language, should perform scheduling of sensor dwells efficiently and effectively. Scheduling of multistatic radars was identified ...Read more