Author:Genthe, Bettina; Strauss, N; Seager, J; Vundule, C; Maforah, F; Kfir, RDate:1997Efforts to provide water to developing communities in South Africa have resulted in various types of water supplies being used. This study examined the relationship between the type of water supply and the quality of water used. Source (communal ...Read more
Author:Zheng, Haitao; Mathe, MkhuluDate:Sep 2023Ultrasonic cavitation is a phenomenon that occurs when high-frequency sound waves are introduced into a liquid medium, causing the formation and collapse of small bubbles within the liquid. These bubbles generate high-energy shock waves that ...Read more
Author:Basappa Ayanna, Manjunath; Pratt, Lawrence E; Mienie, S; Roro, Kittessa TDate:Jun 2018The performance ratio (PR) is a metric commonly used for assessing the performance of a photovoltaic (PV) plants worldwide. The standard PR calculation method (PRPoA) used in solar PV industry as per the International Electro-technical ...Read more
Author:Van Eck, B; Savage, WHDDate:1951In the present investigation samples of approximately cobble sized coal from five typical collieries in the major coal fields were taken.Read more
Author:Shorthouse, CA; Robinson, GADate:Jun 1987Repco wrapped core-spun (RWCS) and Repco wrapped spun (RWS) wool yarns, having textured nylon or polyester as the filament component were spun to a range of yarn linear densities from three lots of tops (1) polymer treated tops pretreated by ...Read more
Author:Guduri, BBR; Khoathane, C; Anandjiwala, RD; De Veries, A; Sadiku, ER; Van Wyk, Llewellyn VDate:Jan 2007Scutched and line flax fibres, with mean linear density of about 19.5 decitex, were utilized for this study. Mechanical properties of fibre and resin were measured for assessing their contribution in the composite matrix. Polypropylene (PP)/ ...Read more
Author:Guduri, BBR; George, S; Lawrence, CC; Anandjiwala, RDDate:Dec 2007The main objective of this research was to study the effect of water absorption on mechanical properties of hemp fibre reinforcement for polyolefin’s (PP & HDPE) composites. The poor resistance towards water absorption is one of the drawbacks ...Read more
Author:Karsten, AEDate:Oct 2008The wide spread use of lasers as a treatment modality emphasized the need that users are aware of the parameters that effect the dose applied during treatment. The results presented show the importance to know the optical parameters (absorption, ...Read more
Author:Melebari, A; Melebari, A; Alomar, W; Abdul Gaffar, MY; De Wind, R; Cilliers, Jacques EDate:Oct 2015A major challenge in radar design is to not overflow the processor with false detections. This paper investigates the performance of Constant False Alarm Rate (CFAR) algorithms on maintaining a fixed false alarm rate when windowing is used ...Read more
Author:Litvin, IA; Forbes, ADate:2005Bessel beams have gathered much interest of late due to their properties of near diffraction free propagation and self reconstruction after obstacles. Such laser beams have already found applications in fields such as optical tweezers and ...Read more
Author:Lemley, DA; Lamberth, SJ; Manuel, W; Nunes, M; Rishworth, GM; Van Niekerk, Lara; Adams, JBDate:Jun 2021Increased nutrient loading associated with rapid population growth is the leading cause of deteriorating water quality in urbanized estuaries globally. Small estuaries are particularly sensitive to changes when connection with the marine ...Read more
Author:Mittal, H; Maity, Arjun; Ray, SSDate:Aug 2015Biodegradable hydrogels of gum ghatti (Gg) with a co-polymer mixture of acrylamide (AAm) and methacrylic acid (MAA) (termed as Gg-cl-P(AAm-co-MAA)) were synthesised by microwave-assisted free radical graft co-polymerisation technique. The ...Read more
Author:Rasilingwania, TE; Gumbo, JR; Masindi, V; Muedi, KL; Mbhele, Nkhangweleni RDate:Jul 2023Herein, the removal of Congo red (CR) dye from aqueous solution using MgO nanoparticles (MgONPs) was reported. Batch experiments were used to fulfil the objectives of this study. Specifically, the one-factor-at-a-time (OFAAT) mode where the ...Read more
Author:Ottermann, RW; Burger, NDL; Von Wielligh, AJ; Handley, MF; Fourie, GADate:Sep 2002This project follows on from project GAP 708, The Design and Development of an Effective Support System for Tabular Stopes in Gold and Platinum Mines. The primary output of this project is to develop and surface test an effective roof support ...Read more
Author:Tesfaye, M; Tsidu, M; Sivakumar, V; Botai, JDate:Sep 2011In this study, by modifying the optical parameterization of Regional Climate model (RegCM), the authors have computed and compared the Effective Single-Scattering Albedo (ESSA) which is a representative of VIS spectral region. The arid, ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Mar 2019The overcrowding of the wireless space has triggered a strict competition for scare network resources. Therefore, there is a need for a dynamic spectrum access (DSA) technique that will ensure fair allocation of the available network resources ...Read more
Author:Ramadeen, P; Duvenhage, B; Duvenhage, ADate:Sep 2009A 3rd party 3-dimensional visualization tool (developed by the Council for Scientific and Industrial Research (CSIR)) is being used to visualize and assist with the development of a synthetic environment for joint command and control technology ...Read more
Author:Triebel, R; Van Niekerk, SDate:Nov 2001This research project dealt, importantly, only with safety issues and focussed only on gold and platinum mines. It was conducted amongst representatives (more than 75 personal interviews) of government, labour and mining groups and mines. The ...Read more