Author:Olakanmi, EO; Malikongwa, K; Nyadongo, ST; Hoosain, Shaik E; Pityana, Sisa LDate:Jul 2020The inter-relationships between geometrical properties, microstructural characteristics and corrosion resistance on one hand and laser-material interaction parameter (a) on the other hand are examined. A laser-material interaction parameter ...Read more
Author:Machio, Christopher N; Machaka, Ronald; Chikwanda, HKDate:Nov 2015The effects of die wall lubricants on the cold compaction of titanium hydride powder are studied. Three commonly-used die wall powder metallurgy lubricants – zinc stearate, Acrawax® C dispersion and Mirror Glaze® – are compared. The influence ...Read more
Author:Britz, K; Heidema, J; Varzinczak, IDate:Sep 2011There are various contexts in which it is not pertinent to generate and attend to all the classical consequences of a given premiss—or to trace all the premisses which classically entail a given consequence. Such contexts may involve limited ...Read more
Author:Leenen, L; Terlunen, A; Le Roux, HDate:2012In this chapter the authors present an algorithm to solve the Dynamic Military Unit Path Finding Problem (DMUPFP) which is based on Stentz’s well-known D* algorithm to solve dynamic path finding problems. The Military Unit Path Finding Problem ...Read more
Author:Leenen, L; Vorster, J; Le Roux, WHDate:Apr 2010The authors describe the first phase development of a path finding simulation in a military environment. This concept demonstrator can be used for mission planning by constructing what if scenarios to investigate trade-offs such as location ...Read more
Author:Wall, K; Burrell, RDate:Aug 2012This paper discusses the potential of the private sector to take medium- or longterm responsibility for the operation and/or maintenance of elements of infrastructure owned by municipalities.Read more
Author:Sefala, R; Gebru, T; Mfupe, Luzango P; Moorosi, N; Klein, RDate:Dec 2021Aerial images of neighborhoods in South Africa show the clear legacy of apartheid, a former policy of political and economic discrimination against non-European groups, with completely segregated neighborhoods of townships next to gated wealthy ...Read more
Author:Naidoo, Darryl; Forbes, A; Aït-Ameur, K; Brunel, MDate:Jan 2011An experimental approach in generating Petal-like transverse modes, which are similar to what is seen in porro-prism resonators, has been successfully demonstrated. We hypothesize that the petal-like structures are generated from a coherent ...Read more
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