Author:Mulopo, J; Schaefer, Lisa MDate:Sep 2013Mineral mining generates acidic, saline, metal-rich mine waters, often referred to as acid mine drainage (AMD). Treatment of AMD and recovering saleable products during the treatment process are a necessity since water is, especially in South ...Read more
Author:Milev, AM; Spottiswoode, SMDate:Jan 2002The Ventersdorp Contact Reef is characterised by a variety of different rock types that are found above and below the reef in different mining areas. These variations in the host rock type have been classified into six main geotechnical areas. ...Read more
Author:Bolokang, AS; Phasha, MJ; Camagu, ST; Motaung, DE; Bhero, SDate:Mar 2012Stabilization of the metastable FCC phase has been achieved after 10 h milled Co powder sintering at 1400 °C. Phase identification of the Co powders was performed by the X-ray diffraction analysis, while the microstructural analyses were ...Read more
Author:Bill, M; Kesavan Pillai, Sreejarani; Tinyane, P; Ray, Suprakas S; Sivakumar, DDate:Jan 2018After earlier promising results for the control of anthracnose in avocado fruit by thyme vapours, our studies were extended to commercial use in tray packs. The effect of thyme oil low-density polyethylene impregnated pellets (TO-LDPE-P) in ...Read more
Author:Pandelani, Thanyani A; Ahmed, RDate:Oct 2014Lower leg injury risk is commonly assessed using lower limb surrogates. The HIII and the THOR-Lx has been shown to have low biofidelity due to their geometry and material properties. A new surrogate (the MIL-Lx) was developed to address these ...Read more
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