Author:Turpie, DWF; Van der Walt, LTDate:Jul 1977An improved method for the rapid determination of non-ionic detergent in the cream, effluent and sludge from wool scouring liquors in recovered wool grease was established using dichloromethane as an extraction liquor.Read more
Author:De Villiers, DanielDate:May 2010This paper describes a unique way of setting up a mortar with minimum of extra equipment. A mortar can be set-up, by using the current mechanical mortar sight and a prismatic mirror with a bearing sensor. This concept focuses directly on one ...Read more
Author:De Villiers, DanielDate:Oct 2008Mortars will still play an important roll in modern warfare. This paper describes a unique way of setting up a mortar with minimum of extra equipment. A mortar can be set-up, by using the current mechanical mortar sight and a prismatic mirror ...Read more
Author:De Villiers, JP; Cronje, J; Nicolls, FCDate:Apr 2011Inverse lens distortion modelling allows one to find the pixel in a distorted image which corresponds to a known point in object space, such as may be produced by a RADAR. This paper extends recent work using neural networks as a compromise ...Read more
Author:Maina, JW; De Beer, MorrisDate:Nov 2008This paper presents evaluation of road pavement response under the loading of typical dual and single truck tyre configurations. Locally developed Stress-In-Motion (SIM) technology was used to quantify three-dimensional (3D) shapes of the ...Read more
Author:Chamier, J; Crouch, AMDate:Jan 2012The spectrophotometric change of amercury (II) (Hg2+) selective small molecule chemosensor has been successfully converted into a photovoltaic response upon ligating Hg2+. The photon excitation was followed by charge separation facilitated ...Read more
Author:De Villiers, J; Cronje, JDate:Apr 2013This work extends earlier work on the real-time photogrammetric stitching of staring arrays of high resolution videos on commercial off the shelf hardware. The blending is both further optimised for Graphics Processor Unit (GPU) implementation ...Read more
Author:Ogbodo, EU; Dorrell, DG; Abu-Mahfouz, Adnan MIDate:Mar 2019The conventional smart grid (SG) uses static radio resource allocation (RRA) techniques to allocate resources to sensor nodes and communication devices in the SG network. Cognitive radio sensor Networks (CRSNs) based SGs uses dynamic RRA for ...Read more
Author:Mthethwa, Sthembile; Barbour, GrahamDate:Dec 2016The rapid growth of biometric technologies and wide accessibility of capturing devices has resulted in biometric systems becoming increasingly common in different applications. This has led to the introduction of ATMs in countries like Japan ...Read more
Author:Mapako, MCDate:Apr 2011Biomass fuels dominate the national energy balances of most sub-Saharan African countries, with wood contributing 80-90% of poorer countries like Ethiopia, Tanzania, the Democratic Republic of Congo and Mozambique. The predominant method of ...Read more
Author:Greben, HA; Maree, JP; Eloff, E; Murray, KDate:Jul 2005The product of the biological sulphate reduction is sulphide. High concentrations of molecular H2S(g) can be inhibitory for microbial activity, especially at a reactor pH of 6 to 7. This paper focuses on the effect of high sulphide concentrations ...Read more
Author:Olwal, TO; Van Wyk, MA; Van Wyk, BJ; Odhiambo, M; Chatelain, DDate:Jun 2007This paper presents a decentralised cross layer dynamic power control (DDPC) scheme for Wireless Mesh Networks (WMNs). A general cross-layer occupation measure (COM) based on transmission scheduling probability (TSP) and power control policy ...Read more
Author:Badenhorst, J; Davel, MH; Barnard, EDate:Nov 2012We improve on a piece-wise linear model of the trajectories of Mel Frequency Cepstral Coefficients, which are commonly used as features in Automatic Speech Recognition. For this purpose, we have created a very clean single-speaker corpus, ...Read more
Author:Wasonga, F; Olwal, TO; Abu-Mahfouz, Adnan MIDate:Nov 2019Cognitive radio employs an opportunistic spectrum access approach to ensure efficient utilization of the available spectrum by secondary users (SUs). To allow SUs to access the spectrum opportunistically, the spectrum sensing process must be ...Read more
Author:Roberts, David P; Roberts, MKC; Acheampong, EDate:Mar 2002The aim of this project was to determine whether the introduction of short bolts into a stope hangingwall would increase the stability of the hangingwall beam. A simple physical 1/10th hangingwall model was constructed out of concrete, with ...Read more
Author:Oelofse, Suzanna HHDate:May 2009This document focuses on the improved waste management services and the Waste Act 59 of 2008. It provide in formation on the Integrated Waste Management Plans, technical capacity – infrastructure, the backlog in adequate service provision, ...Read more
Author:Mabhali, Luyolo AB; Pityana, Sisa L; Sacks, NDate:Jul 2010Aluminium is vastly used in industry due to its low cost, light weight and excellent workability, but lacks in wear resistance and hardness. Laser alloying is used to improve the surface properties such as hardness by modifying the composition ...Read more
Author:Sariket, D; Shyama, IS; Hajra, P; Mandal, H; Bera, A; Maity, Arjun; Bhattacharya, CDate:Jan 2018The present paper describes photocatalytically active In2O3 thin films developed using a direct drop-cast method on F-doped tin oxide (FTO) coated glass substrates using 10 mM In(NO3)3 dissolved in ethylene glycol containing 0–0.0125 M Triton-X ...Read more
Author:Rathogwa, MashuduDate:Jul 2023The Minibus Taxi Industry is plagued with violence, un-roadworthy and unsafe vehicles. Although the government has made numerous efforts to formalize and regulate the sector, the industry remains unregulated and unofficial. As the industry ...Read more