Author:Esser, MJD; Strauss, Hencharl J; Koen, WS; Preussler, D; Nyangaza, K; Bollig, CDate:Jun 2009The authors have, through careful analysis of spectroscopic data, designed and demonstrated a diode-end-pumped, quasicontinuous wave Tm:GdVO4 laser operating at 1892 nm in order to pump a Q-switched Ho:YLF laser. The Ho:YLF maximum output ...Read more
Author:Genthe, Bettina; Oberholster, Paul JDate:May 2017Conventional wastewater treatment processes such as activated sludge and biofilms are seldom used in rural South Africa due to lack of electricity and financial resources. This presentation focuses on phyco-remediation as an environmentally ...Read more
Author:Mamushiane, Lusani; Shozi, Themba CDate:May 2021SDN marks a paradigm shift towards an externalized and logically centralized controller, unlike the legacy networks where control and data planes are tightly coupled. The controller has a comprehensive view of the network, offering flexibility ...Read more
Author:Musee, NDate:Aug 2009This presentation investigates the presence of evidence of increasing quantities of nanowaste streams into the environment, as well as the trends for nanowastes generation. The growth of nano-related patents is discussed, and the growth in ...Read more
Author:Khoza, Mary; Sinha Roy, Jayita; Ray, Suprakas S; Ojijo, Vincent ODate:Nov 2020Traces of quaternary ammonium salt from dispersed nanoclay in PA6/6.6 polymer nanocomposite may have some potential toxicological effects that could pose a risk to human health. Modified nanocomposite system was produced by masterbatch melt ...Read more
Author:Zengeya, TA; Robertson, MP; Booth, AJ; Chimimba, CTDate:Jan 2013This study outlines the development of a qualitative risk assessment method and its application as a screening tool for determining the risk of establishment and spread of the invasive Nile tilapia, Oreochromis niloticus (Linnaeus, 1758), ...Read more
Author:Malik, HH; Erasmus, Louwrence D; Pretorius, J-H CDate:Jun 2017A description is provided on how good systems engineering processes and methods are used so that gaps can be determined by quantitative methods for informing training programs. The Systems Engineering Capability Model (SECM) is used to determine ...Read more
Author:Henrico, S; Coetzee, S; Cooper, Antony KDate:Nov 2022We conducted a study to find out whether and why South African users accepted QGIS. In the quantitative part of the study, we found that QGIS acceptance is primarily influenced by habit, followed by facilitating conditions, price value, and ...Read more
Author:Gush, Kim L; De Villiers, MRDate:Oct 2011Digital Doorways are rugged multi-terminal computer systems for promoting self-directed, unassisted or peer-assisted leaning in low- income communities where computer infrastructure is limited. Users develop the necessary skills through ...Read more
Author:Makinana, S; Malumedzha, T; Nelwamondo, Fulufhelo VDate:Jan 2015Iris recognition systems have attracted much attention for their uniqueness, stability and reliability. However, performance of this system depends on quality of iris image. Therefore there is a need to select good quality images before ...Read more
Author:Ndiege, JRA; Wayi, N; Herselman, Martha EDate:Feb 2012The use of Information Systems (IS) of acceptable quality has been viewed to be vital for improving the efficiency and effectiveness of business operations. Many SMEs in developing countries are beginning to embrace the use of IS to help ...Read more
Author:Mafusire, CDate:Sep 2010A model is used to calculate the beam quality factor of a laser beam from Zernike coefficients. It is tested by programming aberration coefficients on a laser beam and measuring the beam quality using a Shack-Hartmann wavefront sensor. The ...Read more
Author:Conradie, Dirk CU; Roux, EDate:Mar 2008The aim of this paper is to propose the use of simulation to improve design quality and to introduce new opportunities to use quality management throughout the various development stages of construction projects. The paper will attempt to ...Read more
Author:Badenhorst, J; De Waal, A; De Wet, FebeDate:May 2012The collection of speech data suitable for speech technology development is a challenge for under-resourced languages. Factors such as cost, availability of mother-tongue speakers and vast geographic distances call for techniques to optimise ...Read more
Author:Janse van Rensburg, V; Mishra, A; Nel, Willem AJDate:May 2013Some Inverse Synthetic Aperture Radar (ISAR) algorithms form the image in a two-step process of range alignment and phase conjugation. This paper discusses a comprehensive set of measures used to quantify the quality of range alignment, with ...Read more
Author:Van Assen, EJ; Vlok, M; Rust, FCDate:Aug 1992The poor performance of asphalt surfacings either during construction or in-service, can be very traumatic to contractor, client, consultant, road-user and ultimately to the taxpayer. The binder is quite often blamed, with or without ...Read more
Author:Masonta, Moshe T; Rananga, SDate:Aug 2023The growing demand for high-speed and ubiquitous connectivity continues to present new challenges for efficient usage, management and sharing of radio frequency spectrum. Dynamic spectrum access concept, enabled by cognitive radio technology, ...Read more
Author:Botha, GE; Oliveira, JC; Ahrné, LDate:Apr 2012Combination of osmotic dehydration with microwave assisted air drying offers increased flexibility for process control and product quality. Osmotic dehydration (55ºBrix solution at 40ºC for 90 minutes) combined with microwave assisted air ...Read more
Author:Wall, K; Ive, O; Bhagwan, J; Birkholtz, W; Lupuwana, N; Shaylor, EDate:Oct 2013A number of pilot projects in the Eastern Cape have demonstrated how the institutionally innovative and very practical social franchising partnership approach can successfully be used for the routine maintenance of low-technology water and ...Read more