Author:West, NJ; Jandrell, IR; Forbes, ADate:2006This paper describes the preliminary small-scale experiments conducted in order to investigate the influence of intensely focused laser light produced by a CO2 laser on high voltage fields. The laser used operated at a maximum energy of 430 ...Read more
Author:Rapeti, T; Backeberg, BjörnDate:Oct 2016Data assimilative ocean models play crucial roles in furthering the understanding, and providing forecasts of the Agulhas Current system. This study investigates the impact that assimilating sea surface temperatures (SST) combined with sea ...Read more
Author:West, NJ; Jandrell, IR; Forbes, ADate:Aug 2007In this research, an orthogonally laser-triggered spark gap is investigated. The laser beam is directed in the region of a 30mm spark gap at 90 degrees to the gap and focused on the axis. The influence of plasma position within the spark gap ...Read more
Author:Clark, D; Darazs, MDate:1976The Institute was asked by Dr K O R Gebardt, (consultant to APA), to investigate the Sulphur balance of a single-stage gas producer, fueled with anthracite.Read more
Author:Daehnke, A; Le Bron, KB; Van Zyl, MDate:Oct 1999The aim of this project is to formulate a basis for quantifying support mechanisms, and specifically to gain insights into the influence of rock discontinuities on stable spans. The work gives a preliminary analysis of the support interaction ...Read more
Author:Azeez, MA; Andrew, JE; Sithole, Bishop BDate:Oct 2015Two common Nigerian-grown biomasses, gmelina (Gmelina arborea) and bamboo (Bambusaa vulgaris) have been pulped and their fibre characteristics and paper properties examined. The results of their chemical compositions showed some fair similarities. ...Read more
Author:Slinger, JH; Taljaard, SusanDate:Oct 1994The hydrodynamics and water quality of the Great Berg Estuary were studied under river flow conditions typical of the winter and summer seasons. Results reflect a strongly seasonal regime with the estuary exhibiting fluvial dominance during ...Read more
Author:Edwards, A; Franz, RM; Schutte, PC; Steenkamp, TDate:Jan 2010Proactive evaluation and management of risks associated with exposure to combinations of occupational health stressors requires information on the impacts of individual stressors, as well as their cumulative and combined impacts. The harsh ...Read more
Author:Edwards, ADate:Apr 2011Workplace stress in the mining environment will affect health and safety outcomes in the workforce that could result in accidents and injuries, as well as poorer worker health. Increased knowledge of the specific characteristics and incidence ...Read more
Author:Makoana, Nkutwane W; Moller, Heinrich; Louw, Danie; Yadroitsev, IDate:Sep 2017High laser powers of up to 1500W were used to additively manufacture 17-4PH samples. Porosity was measured using the image analysis technique, and all samples are fairly dense with a maximum of 0.42 percent porosity.Read more
Author:Ngassam, EK; Ntawanga, F; Kandie, WDate:Sep 2010The current expansion of mobile technologies penetration and usage in emerging regions represent an opportunity for leveraging ICT applications adoption by rural communities. Businesses nowadays utilise this opportunity to implement m-commerce ...Read more
Author:Lysko, Albert A; Van Belle, J-P; Budree, ADate:Aug 2019This paper proposes an initial rough model to evaluate the economic impact created by provision of Internet connectivity in an educational setting in a developing country. The research is based on three Television White Space technology (TVWS) ...Read more
Author:Roos, TH; Harms, TMDate:May 2016A new volumetric receiver concept has been investigated, based on an adaptation of the spectrally selective, two-slab packed bed volumetric receiver concept of Flamant et al. Both slabs comprise spheres of identical size – borosilicate for ...Read more
Author:Wolfaardt, C; Buys, JGDate:Aug 1971A technique for manufacturing double-jersey fabrics containing low percentages of a synthetic component, is proposed.Read more
Author:Hunter, L; Smuts, SDate:Jul 1978In practice, many tests are carried out on fabrics in an attempt to predict their durability and wear performance. The present report deals with a survey conducted on the physical properties of a wide range of commercial woven fabrics in ...Read more
Author:Darazs, M; Clark, DDate:1976A literature survey has been carried out. Investigation into the growth of phosphatic deposits, using the Institute's experimental boiler plant, are reported.Read more