Author:Prins, SN; Cornish, LA; Boucher, PSDate:10 Nov 2005The liquidus surface projection for the Al-Pt-Ru ternary system has been determined based on the micro-structural characterisation of arc-melted alloys. The liquidus surface is dominated by the similarity to RuAl phase, and slopes down to the ...Read more
Author:Ryan-Keogh, Thomas J; Thomalla, Sandy JDate:May 2020Chlorophyll fluorescence, primarily used to derive phytoplankton biomass, has long been an underutilized source of information on phytoplankton physiology. Diel fluctuations in chlorophyll fluorescence are affected by both photosynthetic ...Read more
Author:Masukume, Mike; Onyango, MS; Maree, JPDate:Sep 2017This chapter reports on the possibility of recovering valuable products (such as drinking water, metals, electricity, pigments and sulphur) from acid mine drainage (AMD) in South Africa. A lot of effort has been put into AMD remediation using ...Read more
Author:Mashabatu, M; Ntshidi, Zanele; Dzikiti, S; Jovanovic, N; Dube, T; Taylor, NJDate:Aug 2023Inaccurate crop coefficients are major contributing sources of uncertainty that lead to inefficient use of limited available water resources. Understanding the need to improve water use efficiency in South Africa’s fruit industry, this study ...Read more
Author:Rossouw, M; Rautenbach, C; Page, Philip R; Harribhai, JatinDate:Apr 2015The present study addressed aspects of the highly interrelated study area of coastal safety and vulnerability, climate change and setback lines for South African coast. A medium resolution numerical wave analysis was undertaken, in the form ...Read more
Author:Debba, Pravesh; Carranza, EJM; Stein, A; Van der Meer, FDDate:Aug 2008This paper describes a quantitative methodology for deriving optimal exploration target zones based on a probabilistic mineral prospectivity map. The methodology is demonstrated in the Rodalquilar mineral district in Spain. A subset of known ...Read more
Author:Oosthuizen, RudolphDate:Oct 2009The objective of Joint Air Defence (JAD) is to defend own assets against all types of hostile aerial attack. This may even happen within the context of Operations Other Than War (OOTW). Like general warfare, OOTW is a complex environment where ...Read more
Author:Furniss, PRDate:Sep 1977The modelling aid DRIVER is described. It permits the interactive manipulation of the parameters and variables of difference models which are implemented as FORTRAN subroutines. Relationships in the model can be expressed as arbitrary functions. ...Read more
Author:Klarman, S; Gutierrez-Basulto, VDate:May 2013We introduce Description Logics of Context (DLCs) - an extension of Description Logics (DLs) for context-based reasoning. Our approach descends from J. McCarthy's tradition of treating contexts as formal objects over which one can quantify ...Read more
Author:Gandar, MVDate:Oct 1982This report synthesizes information gained from a study of an experimental fire ignited in an 182 ha portion of the Savanna Ecosystem Project study area in early September 1978. Three smaller fires, each covering 1 ha within this area, were ...Read more
Author:Van Heerden, Renier P; Leenen, L; Irwin, BDate:Jun 2021The identification of network attacks in real-time is becoming increasingly important. Most Artificial Intelligence (AI) applications use machine learning to do the classification of attack types but the advantage of an ontological approach ...Read more
Author:Moll, EJ; Campbell, BM; Cowling, RM; Bossi, L; Jarman, ML; Boucher, CDate:Mar 1984A scheme of major categories of the vegetation in and adjacent to the fynbos biome is given as a second approximation after Acocks1 Veld Types (1953). A four tier hierarchy is presented with nineteen categories of vegetation. The major ...Read more
Author:Cooper, Antony K; Hjelmager, J; Nielsen, A; Rapant, PDate:Aug 2003The International Cartographic Association (ICA) has a number of Commissions, including the Commission on Spatial Data Standards, and this presentation describes some of the work undertaken recently by the Commission. A spatial data structure ...Read more
Author:SANCORDate:Mar 1981This document describes the Initial framework for a cooperative marine ecological research programme in the South African Benguela Current region, for the period 1982-1986. The programme is called the Benguela Ecology Programme. It is intended ...Read more
Author:Erasmus, TCDate:1973This report discusses an investigation conducted by the Fuel Research Institute to construct a small-scale version of the delayed-coking apparatus, and study the fundamentals involved and the essential features that characterize the delayed-coking ...Read more
Author:Kruger, FJDate:Jun 1978The objectives, organization and research programme of the Fynbos Biome Project being undertaken in the south-west and southern Cape are described. The project is a cooperative multi-disciplinary study of the ecological characteristics, ...Read more
Author:Mentis, MT; Huntley, BJDate:Oct 1982The objectives, organization and research programme of the Grassland Biome Project are described against a background of the biome's ecological characteristics and environmental problems. Four principal research topics wil 1 be focused upon: ...Read more
Author:Cowling, RMDate:1986The ecological characteristics and ecological problems of the karoo biome are briefly described. A conceptual basis and guidelines for the development of the Karoo Biome Project are outlined by addressing project goals, project structure and ...Read more
Author:CSIR National Scientific Programmes Unit, CSIRDate:Dec 1975The savanna ecosystem project being undertaken at Nylsvley in the northern Transvaal is an attempt to improve our ability to predict events within the savanna grazing lands of southern Africa, in particular to predict the consequences of ...Read more