Author:Mahaye, Ntombikayise; Thwala, Melusi; Cowan, DA; Musee, EuniceDate:Jul 2017Engineered nanoparticles (ENPs) are an emerging class of environmental contaminants, but are generally found in very low concentrations and are therefore likely to exert sub-lethal effects on aquatic organisms. In this review, we: (i) highlight ...Read more
Author:Walters, Michele; Scholes, RJDate:2017This book is based on the collective knowledge of the GEO BON network of volunteers, working towards the establishment of a global, sustainable observation system for monitoring changes in biodiversity.Read more
Author:Zhao, T; Debba, Pravesh; Stein, ADate:Jul 2008Spatial sampling optimization is an important issue for both geo-chemists and geo-statisticians. Many spatial sampling optimization methods have been previously developed. In this paper, we present a spatial simulated annealing method is ...Read more
Author:Green, Chéri ADate:Oct 2012Accessibility analysis models the access of residents to facilities - assuming people will go to their nearest facility for service.If an analysis is done for a large area, this will show whether provision is sufficient and equitable - if ...Read more
Author:Williams, LL; Lück-Vogel, MelanieDate:Oct 2022This study determines input data appropriateness for geographic information system-based enhanced bathtub model (eBTM) modeling of coastal inundation in an urban setting. Various tests were conducted concerning digital surface models (DSMs) ...Read more
Author:Williams, LL; Lück-Vogel, MelanieDate:Oct 2022This study determines input data appropriateness for geographic information system-based enhanced bathtub model (eBTM) modeling of coastal inundation in an urban setting. Various tests were conducted concerning digital surface models (DSMs) ...Read more
Author:Murambadoro, MDate:Nov 2011As part of the outreach programme the South African Risk and Vulnerability Atlas (SARVA) was introduced to geography students of the Society of South African Geographers Students. The students were attending their annual conference hosted by ...Read more
Author:Walubita, LF; Hu, X; Nyamuhokya, TP; Komba, Julius J; Souliman, MIDate:Jan 2018With the increasing use of geogrid reinforcements to mitigate reflective cracking in hot-mix asphalt (HMA) overlays, interlayer (interface) bonding becomes an even more critical aspect of HMA placement/construction to mitigate delamination ...Read more
Author:Cooper, Antony KDate:Mar 2009This paper aims to provide some geographical information (geoinformation) perspectives on innovation and economic growth in Africa, for the first Session of the Committee on
Development Information, Science and Technology (CODIST-1) of the ...Read more
Author:Henry, G; Kuijpers, JDate:Aug 2011Underground mining is a high risk activity, and the design of an autonomous gold miner will reduce high risk to miners, monitor underground conditions and reduce costs. The narrow reef autonomous mining machine will be designed to be an ...Read more
Author:Paige-Green, PDate:Jul 2004This paper briefly summarises the geological and geomorphological history of South Africa. This history is then related to various problems affecting the construction of roads in South Africa. These problems need to be identified early and ...Read more
Author:Paige-Green, PDate:May 2004As the need for road construction materials increased with urban and rural development, their availability is decreasing. They are becoming more costly, their extraction usually has serious environmental implications and many of the most ...Read more
Author:Kwon, J; Tutumluer, E; Al-Qadi, IL; Anochie-Boateng, JosephDate:Feb 2007Resilient modulus is a key input property of pavement foundation geomaterials, i.e., subgrade soil and base/subbase unbound aggregate, for the mechanistic-empirical design of flexible pavements. Recent research at the University of Illinois ...Read more
Author:Makondo, N; Claassens, J; Tlale, N; Braae, MDate:Nov 2012This paper describes a geometrical method for solving the inverse kinematic (IK) problem of a 5 Degrees of Freedom (DOF) redundant manipulator. A geometric inverse kinematics solution is desirable as it provides complete and simple solutions ...Read more
Author:Partridge, TC; Dollar, ESJ; Moolman, J; Dollar, LHDate:Feb 2010This work has drawn upon previous attempts to define geomorphic provinces, but also on more recent work on the geological and geomorphological evolution of southern African fluvial systems. It has also used Digital Terrain Model (DTM)-derived ...Read more
Author:Van Schoor, Michael; Hobbs, PhilipDate:Aug 2016Acid mine drainage (AMD) and its effect on surface and groundwater resources in the Cradle of Humankind (COH) area near Krugersdorp is a pertinent and well-documented concern. In 2008, a water resources monitoring programme for the area was ...Read more
Author:Ragoasha, Matsubu V; Maritz, Johan; Cooper, Antony KDate:Sep 2018A key challenge in rural South Africa is providing social facilities such as clinics. This is difficult due to the nature of settlement distributions, especially in traditional authority areas. Geospatial accessibility analysis can help find ...Read more
Author:Cho, Moses A; Chirwa, PW; Marumbwa, FMDate:Jan 2021Within Southern African biomes, droughts are recurrent with devastating impacts on ecological, economic, and human wellbeing. In this context, understanding the drought impact on vegetation is of extreme importance. However, information on ...Read more
Author:Naude, AH; Van Huyssteen, Elsona; Goss, HDate:Apr 2008The paper will (1) build an argument for the importance and challenges of connecting across scales and borders and between sectors, (2) provide a brief overview of GAP2 in terms of its geo-spatial analysis platform, the way in which it ...Read more
Author:Naude, A; Van Huyssteen, Elsona; Maritz, Johan; Badenhorst, WDate:Nov 2008Whilst there have been rapid advances in satellite imagery and related fine resolution mapping and web-based interfaces (e.g. Google Earth), the development of capabilities for strategic spatial analysis and planning support has lagged behind, ...Read more