Author:Somerset, V; Silwana, B; Van der Horst, C; Iwuoha, EDate:May 2014A modified carbon paste electrodes (MCPE) have been prepared in this study as an alternative “mercury-free” electrochemical sensor for the determination of Pb(sup2+) and Cd(sup2+) metal ions in aqueous solutions. CPE containing a conducting ...Read more
Author:Van Wyk, Llewellyn VDate:Oct 2007This paper compares the demand side requirements of the National Department of Health with the supply-side capabilities of the construction industry as determined by the Register of Contractors. It finds that only a small percentage of ...Read more
Author:Gueli, RJDate:May 2007This paper proposes that improving national infrastructure networks and enhancing service delivery to ordinary people may be an important strategy for the international community and for Africa to help prevent, reduce or manage violent conflict. ...Read more
Author:Nkgapele, M; Denneman, E; Anochie-Boateng, JosephDate:Jul 2012A trial section was paved with the recently introduced High Modulus Asphalt (HiMA) technology on South Coast road in eThekwini (Durban). The trial section forms part of an effort to transfer HiMA technology to South Africa, in an initiative ...Read more
Author:Nortje, Karen; Steyn, MaronelDate:Oct 2015This paper looks at the way in which Integrated Water Resource Management (IWRM), its principles but also the way in which the approach has been interpreted and implemented by water managers, decision-makers and water communities themselves ...Read more
Author:McDonald, Andre M; Van Wyk, ADate:Dec 2017This paper presents a novel technique for constructing semi–Markov ergodic maps that harnesses a new solution of the inverse eigenvalue problem for 3–by–3 doubly stochastic matrices. The proposed solution facilitates the selection of the ...Read more
Author:Willemse, EJ; Joubert, JWDate:Sep 2011The Residential Waste Collection Problem (RWCP) is a realistic extension of the classical Capacitated Arc Routing Problem (CARP), with application in municipal waste collection. Surprisingly, the problem with its extensions have not been ...Read more
Author:Wright, Jarrad G; Calitz, Joanne RDate:Feb 2021According to section 34 of the Electricity Regulation Act, 2006 (Act No 4 of 2006 NERSA is required to appropriately apply its regulatory reviews and make decisions prior to the conclusion of the determination process by the Minister of the ...Read more
Author:Twine, W; Moshe, D; Netshiluvhi, T; Siphugu, VDate:Sep 2003Household consumption and direct-use values of a range of savanna bio-resources were quantified for 110 households across three villages in the Mametja Traditional Authority, Limpopo province, South Africa. The relationship between household ...Read more
Author:Windvoel, VT; Mbanjwa, MB; Land, KDate:2010Polydimethylsiloxane (PDMS) has a hydrophobic surface, forming a contact angle of around 110º with deionised water. It is due to its hydrophobic nature that the elastomer is prone to bio-fouling, such as non-specific adsorption of biomaterials ...Read more
Author:Fernandes, PJLDate:Jun 1997Surface contact fatigue is a common cause of failure in rolling-element bearings. The extent of damage observed depends on the contact loads, the curvature of the rolling elements, and the relative motion between the contacting surfaces. The ...Read more
Author:Strydom, MADate:Jun 1985Pilot scale processing trials were carried out with wool which had been packed in a new low fibrillating, high density polyethylne.Read more
Author:Ogunleye, OSDate:Sep 2009This paper, presents four research directions that point toward increasing the importance of mobile research and development in the Africa's developing countries and countries where people use devices more than desktop computers. These ...Read more
Author:Masango, Mfundo G; Mouton, Francois; Nottingham, Alastair; Mtsweni, Jabu SDate:Aug 2016Android smart devices have become an integral part of peoples lives, having evolved beyond the capability of just sending a text message or making a call. Currently, smart devices have applications that can restrict access to other applications ...Read more
Author:Rosman, Benjamin SDate:2014This paper addresses the problem of online decision making in continually changing and complex environments, with inherent incompleteness in models of change. A fully general version of this problem is intractable but many interesting domains ...Read more
Author:Modipa, TI; Davel, MH; De Wet, FebeDate:Nov 2012When modelling code-switched speech (utterances that contain a mixture of languages), the embedded language often contains phones not found in the matrix language. These are typically dealt with by either extending the phone set or mapping ...Read more
Author:Danny, MN; Kogeda, OP; Mtsweni, Jabu SDate:Nov 2016In Social Networking Sites (SNSs), users tend to accept friend requests and share their personal information based on intuitive trust levels. Mistakenly trusting and sharing private information with malicious users may lead to a wide variety ...Read more
Author:Botha, Adèle; Herselman, Martha E; Kotze, DDate:Jun 2017The purpose of this paper is to describe the adaption of the DEMOLA Innovation Model, developed in Finland, to the South African and African context, supported by an interrogation of tacit knowledge through an adaption of Holsapple and Joshi’s ...Read more
Author:Veerasamy, Namosha; Mashiane, Charmaine T; Pillay, KDate:Mar 2019The expansion of the information society has brought with it a revolution in the use of Information Communication Technology (ICT). In South Africa, the adoption of various digital devices and technologies has introduced conveniences but at ...Read more