Author:Engelbrecht, AD; North, Brian C; Hadley, TDDate:Sep 2007Electricity demand in South Africa is increasing at a rate of 1000 MW per year. Whilst there is increasing pressure to adopt non-fossil fuel electricity generating technologies, the abundant reserves and low cost of coal makes it the preferred ...Read more
Author:Erasmus, TCDate:1972The present study is confined to investigation of the ignition phase of the combustion process and deductions must be seen in that light.Read more
Author:Nicholson, Sarah-Anne; Lévy, M; Llort, J; Swart, S; Monteiro, Pedro MSDate:Sep 2016In the Sub-Antarctic Ocean elevated phytoplankton biomass persists through summer at a time when productivity is expected to be low due to iron limitation. Biological iron recycling has been shown to support summer biomass. In addition, we ...Read more
Author:Drescher, KDate:Feb 2002The testing undertaken for this dissertation is intended to help quantify the various time-dependant deformation processes around typical deep level hard rock tabular excavations. Three mechanisms were investigated and two different hard rock ...Read more
Author:Lehong, SM; Dube, E; Angelopoulos, GDate:Jun 2013This study identifies the perceived benefits of Enterprise Architecture (EA) among business stakeholders who are aware of EA but are not specialists in the field of ICT, and proposes a clearly differentiated and comprehensive cluster of ...Read more
Author:Litvin, IADate:Jul 2006Numerical calculations of the phase velocities of collective modes of a hollow waveguide at the Stokes frequency is carried out. The self- imaging of transverse structure of modes superposition (Talbot effect) is investigated. It is shown ...Read more
Author:Nkosi, M; Masuku, FDate:Jul 2016Gauteng Province has carried out two household travel surveys (HTS) – the first was carried out in 2000 and the recent one was completed in 2014. HTSs are the mainstay of transport planning and modelling, being used by the province to update ...Read more
Author:Frieslaar, I; Irwin, BDate:Sep 2015This paper investigates the power leakage of a smartcard. It is intended to answer two vital questions: what information is leaked out when different characters are used as output; and does the length of the output affect the ...Read more
Author:Steenkamp, Anton J; Nordengen, Paul A; Berman, Robert J; Kemp, LanaDate:Jun 2017Transport logistics in South Africa forms the backbone of the economy, having represented 11.8% of GDP, or R499 billion in 2016. These costs are significantly higher than many developed countries. The South African transportation sector is ...Read more
Author:Le Roux, WHDate:Jun 2007The applicability and usability of the Military Simulation Definition Language (MSDL) is investigated in context of the South African air Defence simulation community. A constructive, tactical command and control simulation environment used ...Read more
Author:Salie, F; Poluta, M; De Jager, Peta; Abbott, G; Baloyi, N; Van Reenen, Tobias HDate:Oct 2012The subject of this research project is to review and study the effectiveness of natural ventilation design assisted by a turbine
ventilator, introduced to minimise the risk of transmission of airborne pathogens like TB.Read more
Author:Lord, RT; Nel, Willem AJ; Abdul Gaffar, MYDate:May 2006Conventional Inverse Synthetic Aperture Radar (ISAR) utilises the rotational motion of a target such as a ship or an aircraft to obtain a 2-D image of the target’s radar cross section (RCS) profile from a coherent radar system. This concept ...Read more
Author:Gledhill, Irvy MA; Forsberg, K; Eliasson, P; Baloyi, J; Nordström, JDate:2009In this paper the authors describe the implementation and validation of arbitrarily moving reference frames in the block-structured CFD-code EURANUS. The paper also present results from calculations on two applications involving accelerating ...Read more
Author:Mgangira, Martin B; Xungu, Sipho A; Giani, John CDate:Jul 2018The deterioration of the aggregate material used in road construction is of concern as it affects the overall long term stability of the road pavement and should be minimised by using durable aggregates. The paper presents proof of concept ...Read more
Author:Ndlovu, GF; Asante, JKO; Roos, WD; Hillie, KTDate:Jul 2011This work present an in situ Variable Temperature Scanning Tunneling Microscopy (VT-STM) study of the Sb/Cu(111) system studied at various temperatures. The experimental data support a structural model in which Sb atoms displace up to 1/3 of ...Read more
Author:Twala, B; Djonon Tsague, HippolyteDate:2016The term carrier mobility generally alludes to both electron and hole mobility in semiconductors. These parameters characterize how quickly an electron and/or hole moves through a metal or semiconductor when under the influence of an electric ...Read more
Author:Makamba, MDate:Mar 2016The proliferation of service technology stimulated the increase usage of services. Services are distinct, loosely coupled units of functionalities that are self-contained. These services are developed by various vendors without following ...Read more
Author:Brandt, P; Moodley, D; Pillay, AW; Seebregts, CJ; De Oliveira, TDate:2014The development of drug resistance is a major factor impeding the efficacy of antiretroviral treatment of South Africa’s HIV infected population. While genotype resistance testing is the standard method to determine resistance, access to these ...Read more
Author:Grzeskowiak, V; Hanuman, A; Andrew, JDate:2011Environmental scanning electron microscopy coupled with energy dispersive x-ray (ESEM/EDX) was optimised to measure the penetration and diffusion of cooking liquor into Eucalyptus grandis wood chips during kraft pulping. The moisture content ...Read more