Author:Van der Watt, R; Erasmus, Louwrence DDate:Jul 2016A public multi-disciplinary primary-level hospital delivers clinical services to both in and out patients within its catchment area. A multi-disciplinary hospital is a healthcare facility of which the commissioning or transition into operations ...Read more
Author:Arhete, LE; Erasmus, Louwrence DDate:May 2016Despite the end of apartheid decades ago, the South African healthcare system continues to face significant challenges. Although efforts were made in the past to address the crisis, the system is said to be performing below standard. The South ...Read more
Author:Wright, C; John, JDate:Jan 2009Air pollution in South Africa is a serious environmental health threat, particularly in urban and peri-urban metropolitan areas, but also in low income settlements where indoor air pollution from domestic fuel use is a concern. A healthy ...Read more
Author:Edwards, ADate:Sep 2010This paper deals with noise-induced hearing loss protection in the South African mining industry. I deals with several issues, including standards and regulations, medical issues and compensationRead more
Author:Seid, ER; Majozi, TDate:Jul 2014Energy saving is becoming increasingly important in batch processing facilities. Multipurpose batch plants have become more popular than ever in the processing environment due to their inherent flexibility and adaptability to market conditions, ...Read more
Author:Nyoni, NMB; Grab, S; Archer, Emma RMDate:Apr 2018Compared to other types of livestock, poultry is widely owned by rural households in developing countries. Rural poultry production is not a primary agricultural activity per se, but rather serves to supplement other farming activities in ...Read more
Author:Schutte, PDate:Sep 2009Occupational heat stress is a recognized health and safety hazard in South African mines. The consequences of high occupational heat loads can be expressed in terms of impaired work capacity, errors of judgment with obvious implications for ...Read more
Author:Schutte, PC; Kielblock, AJ; Marx, HEDate:Nov 1994The present report presents the findings of SIMRAC project GAP 045 entitled ‘Heat stress protection in abnormally hot environments’. It is intended as a reference to develop guidelines which, in turn would assist mine management in establishing ...Read more
Author:Arthur, Nana KK; Siyasiya, CW; Pityana, Sisa L; Tlotleng, MonnammeDate:Jan 2022During the laser metal deposition additive manufacturing processing of Ti6Al4V ELI alloy, the parts produced were exposed to high levels of thermal gradients, which resulted from rapid heating and cooling rates in the material. This had an ...Read more
Author:Osburn, LDate:Feb 2009The heating, ventilation and cooling loads of typical commercial office space can range between 30-50% of the total energy load of the building. However, this figure is highly variable due to the high variability in building design, the climate ...Read more
Author:Steenkamp, Anton J; Kienhofer, F; De Saxe, CCDate:Sep 2021Previous research investigating the dynamic road wear produced by heavy vehicles has not included the effect of road crossfall. This study shows that road crossfall, even at values as low as 1%, has a significant effect on the predicted dynamic ...Read more
Author:Du Plessis, L; Strauss, PJ; Perrie, BD; Rossmann, DDate:Jul 2006The paper addresses two different heavy Vehicle Simulator (HVS) studies conducted on concrete: Load transfer through aggregate interlock and the use of dowels and the evaluation of the performance of an in-service continuously reinforced ...Read more
Author:Viljoen, AW; Freeme, CR; Servas, VP; Rust, FCDate:Jul 1987Conventional overlay life estimates are often invalidated by the reflection of existing cracks in a pavement through an overlay. This is attributable to a lack of understanding of the factors influencing relative crack movements and their ...Read more
Author:Theyse, HL; Steyn, WJVDM; Sadzik, E; Henderson, MDate:Jun 2006Developing countries such as South Africa have an urgent need to create road infrastructure for rural access and urban mobility. Many of these roads will operate under low traffic volumes and only require a sealed, light pavement structure. ...Read more
Author:Du Plessis, L; Coetzee, NF; Burmas, N; Harvey, JT; Monismith, CLDate:Oct 2008The purpose of this paper is twofold. Firstly, it will provide a brief description of the technological developments involved in the Heavy Vehicle Simulator (HVS) accelerated pavement testing equipment. This covers the period from its conception ...Read more
Author:Jones, DJ; Morton, BDate:Sep 2002Heavy Vehicle Simulator (HVS) operations have been performed by the CSIR for the past 25 years. During this period, experience has been gained with regards to the collection and storage of pavement behaviour data from accelerated pavement ...Read more
Author:Rust, FC; Du Plessis, L; Verhaeghe, Benoit MJA; Grobler, JEDate:Oct 1993Internationally, interest in accelerated pavement testing (APT) is increasing, in particular testing with mobile machines which allow the performance of in-service roads to be assessed. The Californian Department of Transportation (CALTRANS) ...Read more
Author:Du Plessis, L; Kohler, EDate:Jul 2007This paper focuses on results obtained from recent accelerated loading testing in California with a Heavy Vehicle Simulator (HVS) on a particular system of pre-cast slabs, referred to as SuperSlab. For heavily trafficked highways, such as ...Read more
Author:Cilliers, A; Nel, Willem AJDate:Sep 2008A technique based on time-frequency and tomographic analysis to extract helicopter blade parameters for the purposes of radar non-cooperative target recognition (NCTR) is investigated. The proposed algorithm shows that (under certain conditions) ...Read more