Author:Keith, M; Chimimba, CT; Reyers, B; Van Jaarsveld, ASDate:Apr 2007Assessing the risk of extinction to species forms an essential part of regional conservation initiatives that facilitate the allocation of limited resources for conservation. The present study conducted conservation priority assessments for ...Read more
Author:Lakay, FM; Botha, A; Prior, BADate:Jan 2007Three different soil DNA isolation and four purification strategies were compared on different soil samples with variable rates of success. Bead beating extraction gave significantly higher DNA yields than microwave-based and liquid nitrogen ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Aug 2018In this paper, we compare local and global adaptive threshold estimation techniques for energy detection in Cognitive Radio (CR). By this comparison we provide a sum-up synopsis on the effective performance range and the operating conditions ...Read more
Author:Afachao, K; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Aug 2023This paper presents a comprehensive analysis of nature-inspired metaheuristic algorithms for achieving energy efficiency in the Edge-Cloud environment. The study focuses on the Particle Swarm Algorithm (PSO), Ant Colony Optimization (ACO), ...Read more
Author:Mvelase, P; Sibiya, G; Dlodlo, N; Oladosu, J; Adigun, MDate:Sep 2013Research and commercial efforts are currently addressing challenges and providing solutions in cloud computing. Business models are emerging to address different use case scenarios of cloud computing. In this paper, we present the evaluation ...Read more
Author:Ngwenya, SO; Heymann, R; Swart, TG; Lysko, Albert ADate:Jul 2023This paper considers the differences between rural and urban access to Information and Communication Technology (ICT) through non-intrusive research methodologies that are deemed effective in obtaining the relevant information required to ...Read more
Author:Barros, E; Marais, GJ; Bekker, M; Dawlal, P; Lezar, SDate:Feb 2006This study is about the South African maize samples that have been analysed for mycotoxins, for presence of F.verticillioides and for metabolic profiling. 26 maize cultivars are used , and 50 kernels were plated on 10 PCNB agar plates using ...Read more
Author:Williams, LL; Lück-Vogel, MelanieDate:Mar 2020Coastal zones are dynamic spaces where human activities and infrastructure are exposed to natural forces, climate change and extreme weather events such as storm surges. Coastal inundation is regarded as one of the most dangerous and destructive ...Read more
Author:Walubita, LF; Nyamuhokya, TP; Komba, Julius J; Tanvir, HA; Souliman, MI; Naik, BDate:Dec 2018With the increasing use of geogrid reinforcements to mitigate reflective cracking in hot-mix asphalt (HMA) overlays, interlayer (interface) bonding has become an even more critical aspect of HMA placement/construction to mitigate delamination ...Read more
Author:Lemley, DA; Adams, JB; Taljaard, SusanDate:Apr 2017This study compared the spatio-temporal dynamics in two agriculturally-influenced South African estuaries - Gamtoos and Sundays - to investigate how contrasting hydrological alterations influence physical, chemical and biological responses. ...Read more
Author:Mkunyana, YP; Mazvimavi, D; Dzikiti, Sebinasi; Ntshidi, ZaneleDate:Oct 2018The detrimental impacts of invasive alien plants on ecosystems and water resources have raised concerns in arid and semi-arid countries like South Africa where the average precipitation is approximately 500 mm/yr, which is below the world ...Read more
Author:Singh, A; Smit, Jacoba E; Karsten, AE; Grobler, AF; Sparrow, RWDate:Sep 2010This study aims to extract and compare attenuation coefficients of different liquid skin-like phantoms representing Skin Types 1 to V1 with two methods, Spectrophotometric and Integrating Sphere methods. The correlation between the results ...Read more
Author:Van Eeden, WD; De Villiers, JP; Nel, Willem AJ; Kloke, KH; Blasch, EDate:Oct 2015A simulation for human Doppler response is developed based on the Carnegie Mellon University motion capture database. This data is used to simulate human Doppler response as it would be seen by a radar system and this data is compared to ...Read more
Author:Stafford, William HL; Russo, Valentina; Nahman, AntonDate:Sep 2022The pervasive use of plastics, coupled with inadequate waste management systems in many countries, has led to widespread leakage of plastics into the environment. In South Africa, the predominant type of shopping bags are single-use plastic ...Read more
Author:Fashedemi, OO; Ozoemena, KIDate:May 2014Electrocatalytic oxidation of alcohols in alkaline solutions is critical for the development of direct alkaline alcohol fuel cells (DAAFCs). This work investigated alcohol oxidation reaction (AOR) at a novel palladium-based core-shell nano ...Read more
Author:O'Connell, Johannes S; Komba, Julius J; Louw, JGDate:Jul 2014The binder is an important constituent of an asphalt mix and it affects the overall performance of the mix, especially with regards to permanent deformation and fatigue cracking. The stiffest binder available from the Chevron refinery in the ...Read more
Author:Mamushiane, Lusani; Lysko, Albert A; Dlamini, Sabelo VDate:Apr 2018Software Defined Networking (SDN) is an architecture that decouples the routing intelligence from the forwarding functions, using an entity called 'controller'. It is paramount that the performance of the controller is thoroughly understood ...Read more