Author:Mngenge, NA; Nelwamondo, Fulufhelo V; Malumedzha, T; Msimang, NDate:Jun 2012The need for segmentation of low quality fingerprints in forensics, high security and civilian applications is constantly increasing. Most segmentation algorithms proposed in the literature normally deal with separation of the background ...Read more
Author:Mgangira, Martin B; Anochie-Boateng, Joseph; Komba, Julius JDate:Jul 2013Aggregate shape and surface characteristics influence the performance of both bound and unbound pavement materials. This paper presents some results of an on-going study on the characterization of aggregates using a three-dimensional (3-D) ...Read more
Author:Maistry, Nattele; Schutz, Robert A; Cox, EttienneDate:Sep 2018The current power line fault detection equipment can only locate a fault by detecting corona and heat radiated by the faults. This equipment cannot quantify the ultraviolet (UV) radiation of the fault in radiometric dimensions (W/cm2). The ...Read more
Author:Biffi, M; Belle, BKDate:Mar 2003This report outlines the findings of a study performed to establish the respirable dust
generation characteristics of a number of mining activities. A series of thirty-eight tests were performed on five mines in order to establish the ...Read more
Author:Biffi, M; Belle, BKDate:Mar 2003This report outlines the findings of a study performed to establish the respirable dust generation characteristics of a number of mining activities. A series of thirty-eight tests were performed on five mines in order to establish the respirable ...Read more
Author:Phillips, H; Belle, BKDate:Aug 2003Project SIM020604 was formulated to determine the Inherent Respirable Dust
Generation Potential (IRDGP) of various South African coal types from various
provinces and its use in dust exposure assessment. The objective was to quantify ...Read more
Author:Van Zyl, FJ; Belle, BKDate:Jun 2000The aim of this project was to determine the methane control and dilution ability of the retrofitted hood and half-curtain ventilation systems. The two systems were tested in the full-scale ventilation test gallery at CSIR Miningtek’s Kloppersbos ...Read more
Author:Theron, A; Rossouw, M; Barwell, L; Maherry, A; Diedericks, G; de Wet, PDate:01 Sep 2010In support of the effective implementation of the Integrated Coastal Management Act (Act No 24 of 2008), a review is presented of coastal hazard assessment methods. In particular the ICM Act legislates the establishment or change of coastal ...Read more
Author:Conradie, Dirk CUDate:Oct 2018A bioclimatic analysis of South African towns and cities indicates that solar protection is the single most important passive design measure to reduce energy usage and to improve internal comfort for the built environment across all climatic ...Read more
Author:Naidoo, SashaDate:Mar 2011This research aimed to quantify and model the effects of specific environmental variables on the wood quality of Eucalyptus grandis in the warm temperate (WT) and sub-tropical (ST) forestry regions in South Africa using nondestructive, rapid ...Read more
Author:Godfrey, Linda KDate:Nov 2021Informal waste reclaimers are a key part of South Africa’s recycling economy, being responsible for around 51% of all paper and packaging waste collected in South Africa in 2017. Active in the waste and recycling landscape for more than three ...Read more
Author:Mgangira, Martin B; Sambo, ADate:Oct 2019This paper presents the results of a study of aggregate particle degradation by quantifying changes to aggregate particle shape due to different levels of applied stress. Proof of concept of the experimental system, developed to provide some ...Read more
Author:Oelofse, Suzanna HH; Nahman, AntonDate:Oct 2012Food waste is problematic for a number of reasons, including the loss of a potentially valuable food source or resource for use in other processes (e.g. energy generation or composting); wasted resources and emissions in the food supply chain; ...Read more
Author:Bischof-Niemz, T; Roro, Kittessa TDate:Sep 2015The South African power system is currently under severe constraints. Controlled load shedding occurred several times in 2014. Diesel-fired gas turbines, which are meant to be the barely-ever-used “safety-net” of the power system, ran at more ...Read more
Author:Bischof-Niemz, T; Calitz, Joanne R; Mushwana, CrescentDate:Sep 2015In this study, the direct financial costs and benefits in South Africa from the wind and PV plants that came online in 2014 and all additional wind projects coming online in 2015 are quantified. In 2014, renewables created financial benefits ...Read more
Author:Bugan, Richard DH; Jovanovic, Nebojsa; De Clercq, WPDate:Jun 2015Soil and stream salinisation is a major environmental problem because it reduces the productivity of landscapes and degrades water quality. The Berg River (South Africa) has been exhibiting a trend of increasing salinity levels, which has ...Read more
Author:Lorgat, MW; Baghai-Wadji, A; McDonald, Andre MDate:Oct 2017The performance loss due to incomplete information in denial of service (DoS) detection is quantified in this paper. Volumetric DoS detection is formulated as a signal detection problem. Two detectors are defined: the first operates without ...Read more
Author:Dumani, Nozonke; Mokoena, Refiloe; Mgangira, MartinDate:Jan 2024A sustainable concrete mix design, incorporating industrial by-products: fly ash and recycled plastic pellets, was developed, and optimized through laboratory performance-based testing trials. The primary objective of this investigation was ...Read more