Author:Spottiswoode, SM; Milev, AMDate:15 Apr 1998Mining-induced seismicity results from a complex interaction of ambient and mining-induced stresses acting on a rock mass that has been intersected by a variety of geological weaknesses and discontinuities. A major challenge is to improve ...Read more
Author:Badenhorst, Jacob AC; De Wet, FebeDate:Aug 2019When the National Centre for Human Language Technology (NCHLT) Speech corpus was released, it created various opportunities for speech technology development in the 11 official, but critically under-resourced, languages of South Africa. Since ...Read more
Author:Maasdorp, FDV; Du Plessis, WPDate:Nov 2012In recent years, a discussion on the relationship between Electronic Warfare (EW), Information Warfare (IW), Cyber Operations, Net-Centric Warfare, Command and Control, Information Operations (IO) and other constructs have emerged. This paper ...Read more
Author:Naicker, Devi; Sithole, Bishop BDate:2016This study explores using a Rapid-Kothen sheet former to simulate system closure in a newsprint mill. Pulp samples were obtained from the paper machine of a newsprint mill that used recycled fibre and thermomechanical pulp. Various analytical ...Read more
Author:Roopchund, R; Andrew, Jerome E; Sithole, BDate:Apr 2023Various cellulose nanocrystals (CNC) production processes are not systematically reviewed. Therefore, there lacks a basis for future CNC process designs and optimizations. To solve this problem, the objective of this study was to perform a ...Read more
Author:Matthews, MW; Bernard, StewartDate:2013A two-layered sphere model is used to investigate the impact of gas vacuoles on the inherent optical properties (IOPs) of the cyanophyte Microcystis aeruginosa. Enclosing a vacuole-like particle within a chromatoplasm shell layer significantly ...Read more
Author:De Vos, M; Backeberg, Bjorn-Christoph; Counillon, FDate:Jun 2018A complex and highly dynamical ocean region, the Agulhas Current System plays an important role in the transfer of energy, nutrients and organic material from the Indian to the Atlantic Ocean. Its dynamics are not only important locally, but ...Read more
Author:Van Heerden, Renier P; Chan, Ka Fai P; Leenen, L; Theron, JDate:Sep 2016The modern complexity of network attacks and their counter-measures (cyber operations) requires detailed planning. This paper presents a Network Attack Planning ontology which is aimed at providing support for planning such network operations ...Read more
Author:Ssamula, B; Del Mistro, R; Visser, ATDate:Aug 2006The airline industry is characterized by several challenging factors that include high capital costs, high operating costs and low profit margins. For the African situation, modernisation of fleets has been forced on the airlines by the ...Read more
Author:Roopchund, R; Andrew, Jerome E; Sithole, Bishop BDate:Jan 2022Ordinary Portland cement production is one of the biggest emitters of carbon dioxide. Consequently, there is a strong need for construction materials with lower environmental footprints. However, the development of alternative green construction ...Read more
Author:Ramazhamba, Pardon T; Venter, HSDate:Mar 2023The South African Local Government (SALG) uses the tendering system to procure goods and services. Some of these tendering projects are aimed at promoting socio-economic and industrial policies. Hence, the tendering system used by SALG should ...Read more
Author:Jimenez, B; Austin, A; Cloete, E; Phasha, CDate:2006This paper presents the microbial risks associated with the reuse of Ecosan sludge in agriculture. Sludge from KwaZulu Natal Province in South Africa with a helminth ova content of 30 HO/g TS, faecal coliforms of 10(6) CFU/g TS, faecal ...Read more
Author:Maritz, Johan; Kok, PDate:May 2014Migration is critical for policy agendas and government planning as it changes the demographic composition of towns, cities and regions – this requires adjustments to service and infrastructure provision. To develop suitable policy responses, ...Read more
Author:Steenkamp, Anton J; Steenkamp, Andries LDate:Jul 2022The paved road network is a critical asset to any economy. South Africa has a paved road network that has an estimated value above R2 trillion. This asset is however under threat as there was a backlog in maintenance of more than R416.6 billion ...Read more
Author:Ndimba, R; Cloete, K; Mehlo, Luke; Kossmann, J; Mtshali, C; Pineda-Vargas, CDate:Aug 2017In the present study, possible differences in the mineral composition of transgenic versus non-transgenic sorghum grains were investigated using inductively coupled atomic emission spectroscopy (ICP-AES); and, in-tissue elemental mapping by ...Read more
Author:Oberholster, Paul J; Dabrowski, James M; Botha, A-MDate:Jan 2013The relationships between river and lake phosphorus sensitivity, environmental drivers and catchment characteristics within the upper Olifants River and Lake Loskop were studied over a period of four years to come up with mitigation and ...Read more
Author:Van Deventer, Heidi; Cho, Moses A; Lück-Vogel, Melanie; Van Niekerk, LaraDate:Jul 2016Wetland and estuarine vegetation is often difficult to detect and separate from adjacent land covers with multispectral sensors for a number of reasons. The spatial resolution of space-borne sensors is often insufficient for these features ...Read more
Author:Grobler, TL; Ackermann, ER; Van Zyl, AJ; Olivier, JC; Kleynhans, Waldo; Salmon, Brian PDate:2012Human settlement expansion is one of the most pervasive forms of land-cover change in South Africa. The use of Page’s cumulative sum (CUSUM) test is proposed as a method to detect new settlement developments in areas that were previously ...Read more
Author:Sithole, Bishop B; Watanabe, CDate:Sep 2013Defoamers are often used to control or reduce foam problems in a variety of pulp and papermaking processes. It has been recognised that non-judicious use of defoamers can lead to undesirable deposition problems. Amide-based defoamers have ...Read more
Author:Sithole, Bishop B; Pimentel, J; Gibbons, S; Watanabe, CDate:Oct 2012Understanding the cause of effluent toxicity is an important requirement for its prevention, remediation and return to compliance. One component of the strategy entails identification and fingerprinting of additives or components in additives ...Read more