Author:Walmsley, RDDate:1988This report presents a rationale to the development of a multidisciplinary South African Wetland Research Programme. A definition of what is meant by the term wetland is given along with a general description of what types of wetland occur ...Read more
Author:Walmsley, RDDate:1988This report presents a rationale to the development of a multi-disciplinary South African wetland research programme. A definition of what is meant by the term wetland is given along with a general description of what types of wetland occur ...Read more
Author:Marais, Laurette; Van Zijl, LDate:Sep 2017Previously, self-verifying symmetric difference automata were defined and a tight bound of 2^n-1-1 was shown for state complexity in the unary case. We now consider the non-unary case and show that, for every n at least 2, there is a regular ...Read more
Author:Marais, Laurette; Van Zijl, LDate:May 2022Unary self-verifying symmetric difference automata have a known tight bound of 2n-1-1 for their state complexity. We now consider the non-unary case and show that, for every n=2, there is a regular language Ln accepted by a non-unary ...Read more
Author:Prince, SD; Wessels, Konrad J; Tucker, CJ; Nicholson, SEDate:Jul 2007In semiarid regions the ratio of annual net primary production to precipitation, rain-use efficiency (RUE), has been used as an index of desertification. In a recent publication (Hein & de Ridder, 2006) it was proposed that an incorrect ...Read more
Author:Pennefather, S; Irwin, Barry VWDate:Aug 2017This paper describes the design and application of Link, a Domain Specific Language (DSL) targeting the development of network applications focused on traffic manipulation at the frame level. The development of Link is described through the ...Read more
Author:Xing, B; Gao, W; Tlale, NS; Bright, GDate:May 2007Manufacturing companies are faced with the challenge of unpredictable, high frequency market changes in both local and international markets. There is a need for greater, more effective responsiveness by manufacturers to change their manufacturing ...Read more
Author:Komba, Julius J; Langa, R; Paige-Green, P; Verhaeghe, Benoit MJA; Mokoena, RefiloeDate:Dec 2021The chapter is organized and structured as follows; the introduction section is followed by an overview of climate change-related challenges affecting Mozambique. The study methodology (approach) is then described, followed by a discussion ...Read more
Author:Ottermann, RW; Burger, NDL; Von Wielligh, AJ; De Wet, PRDate:Aug 2001Noise is a generic hazard common to all commodities and, to a greater or lesser extend affecting, all operations within mining. More people are exposed to the risk of noise- induced hearing impairment than to any other occupational hazard. ...Read more
Author:De Ponte, JD; Pieterse, FF; Bidgood, Peter MDate:May 2014In order to meet the increasingly stringent requirements for wind tunnel balances, as expressed by the wind tunnel testing community, balance design philosophy needs to be further expanded to include alternative sensor, material, design and ...Read more
Author:Mathew, Maya J; Dyanti, Nokuzola; Mokhena, Teboho C; Agbakoba, Victor; Sithole, Bishop BDate:Jun 2021This paper deals with the development of cellulose nanofibres (CNFs) reinforced biopolymers for use in packaging applications. Cellulose nanofibres were extracted from sawdust by a combination of chemical and mechanical treatments. The extracted ...Read more
Author:Gerber, AJ; Barnard, A; Van der Merwe, AJDate:May 2006The terms architecture, layered architecture and system architecture are often used by researchers, as well as system architects and business process analysts inconsistently. Furthermore, the concept architecture is commonplace in discussions ...Read more
Author:Khumalo, F; Jordaan, J; Abrahamse, H; Land, K; Potgieter, S; Sparrow, RDate:Jul 2009The development of a micro fluidic circuit for the separation of micro particles is being investigated. There are a wide range of available separation techniques such as acoustic, laminar flow, split flow, optical trapping and centrifugal ...Read more
Author:Tshweu, L; Katata, L; Naidoo, Saloshnee; Kalombo, Lonji; Swai, HDate:Oct 2012AIDS kills over 1.5 million people a year globally. Current HIV drugs pose many challenges. This presentation shows that nano-encapsulation of HIV drugs achieves controlled and steady drug release, and
reduced dosing frequency.Read more
Author:Katata, L; Tshweu, L; Naidoo, Saloshnee; Kalombo, Lonji; Swai, HDate:Oct 2012Efavirenz (EFV) is one of the first-line antiretroviral drugs recommended by the World Health Organisation for treating HIV. It is a hydrophobic drug that suffers from low aqueous solubility (4 lg/mL), which leads to a limited oral absorption ...Read more
Author:Coetzer, A; Turner, Geoffrey R; Mouton, HDTDate:Jan 2016The design and implementation of a bidirectional current-controlled voltage-regulated DC-DC converter is presented. The converter is required to connect a battery of electrochemical cells (the battery) to an asynchronous motor-drive unit via ...Read more
Author:Von Solms, S; Peach, SWDate:Nov 2013Network security risks are becoming an increasing threat as new network attack methods are constantly being developed by hackers to compromise secure networks and devices. The use of a network simulation environment that can realistically ...Read more
Author:Mwila, Martin K; Mbewe, Perseverance NDate:Nov 2017This paper describes the methodology used to develop a communication platform that enhances interoperability between different types of components irrespective of the manufacturers and of the software platform. This framework is intended to ...Read more
Author:Mudali, P; Nyandeni, TC; Ntlatlapa, Ntsibane S; Adigun, MODate:Sep 2009The Wireless Mesh Network (WMN) backbone is usually comprised of stationary nodes but the transient nature of wireless links results in changing network topologies. Topology Control (TC) aims to preserve network connectivity in ad hoc and ...Read more