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(a) Determination of coking properties (b) The fluorine content of South African Coals and its contribution to the volatilisation of boron during combustion

Author: Kunstmann, F Date: 1963 The determination of the Bonding Index, as described in the last annual report, proved to be useful test of the coking ability of a coking coal. Unfortunately, all attempts to lay down specifications for the standard anthracite, which determine ... Read more
Aboveground biomass subdivisions in woody species of the savanna ecosystem project study area, Nylsvley

Author: Rutherford, MC Date: Jan 1979 Aboveground peak season biomass is given for 11 woody species in each of five belt transects under study. Mean aerial biomass for all species was 16 273 kg ha, made up of 14 937 kg ha wood, 236 kg ha current season's twigs and 1 100 kg ha ... Read more
Accident rates related to rural road geometry elements and daily traffic

Author: Skinner, DG Date: Feb 1994 The available data bases for accidents, road geometry (photolog output) and traffic counts were combined and the accident rates determined for two lane, four lane and six lane road categories as well as for 22 geometric element categories. ... Read more
Acclimatization Services to the Mining Industry: Statistics for 1990

Author: Hitge, JJ ; Franz, RM ; Schutte, PC ; Kielblock, AJ Date: Oct 1991 This report is designed to convey information to mine management, environmental engineers, training personnel and acclimatization supervisors that will allow an appraisal of their mine's position with regard to heat acclimatization of workers ... Read more
Activities of the National Programmes for Ecosystem and Aquaculture Research 1983 - 1985

Author: Auret, EW Date: 1986 Activities of the National Programmes for Ecosystem and Aquaculture Research of the CSIR Foundation for Research Development are reviewed, within the programmes on Inland Water Ecosystems, Terrestrial Ecosystems, Nature Conservation Research, ... Read more
Adsorption of oxyanions of As, B, Cr, Mo and Se from coal fly ash leachates using Al3+/Fe3+modified bentonite clay

Author: Vhahangwele, M Date: Jan 2013 South African coal-fired power stations rely on the use of low grade bituminous coal for electricity generation. During coal combustion processes, this type of coal generates large volume of waste materials which include Fly ash, bottom ash, ... Read more
Adsorption of water vapour by coal

Author: Bodenstein, L ; Sevenster, PG Date: 1964 The study of the behaviour of moisture on coal is a rather complex one. The moisture holding capacity of coal and the ability to absorb water affects many characteristics of the material. Read more
Adsorption swelling: A survey of the literature

Author: Meintjies, AA Date: 1965 The purpose of this study is to gain an insight into one possible aspect of the problem of scaling of coal, that is the part which is played by the swelling and shrinkage of coal and coal minerals which accompany the adsorption and desorption ... Read more
Advanced testing and characterization of transportation soils and bituminous sands

Author: Anochie-Boateng, Joseph Date: Dec 2007 This research study was intended to develop laboratory test procedures for advance testing and characterization of fine-grained cohesive soils and oil sand materials. The test procedures are based on typical field loading conditions and the ... Read more
Advances in the mordant bleaching of Karakul. Part 1: The effect of different reducing agents when mordanting with ferrous sulphate

Author: Bereck, A ; Trollip, NG Date: Jun 1987 An investigation has been performed, the results of which provide evidence for the preferential use of phosphorus based reducing agents in place of the traditionally used sulphur based reducing agents in the first stage of mordant bleaching ... Read more
Advances in understanding phosphorus cycling in inland waters - Their significance for South African limnology

Author: Twinch, AJ ; Breen, CM Date: Feb 1980 The definitions of the different phosphorus compound fractions present in inland waters are reviewed and the limitations of the definitions discussed. The development of models of phosphorus cycling is summarized. Attempts to establish their ... Read more
Agenda 21 for sustainable construction in developing countries: a discussion document

Author: International Council for Research and Innovation in Building and Construction, CIB ; United Nations Environment Programme International Environmental Technology Centre, UNEP-IETC Date: 2002 This discussion document “Agenda 21 for sustainable construction in developing countries” represents both a sector response and a developing country response to the challenge of sustainable development. It builds on the principles of the UN ... Read more
Agulhas Current variability determined from space: a multi-sensor approach

Author: Rouault, Marjolaine J Date: Nov 2011 Satellite remote sensing datasets including more than 6 years of high frequency Sea Surface Temperature (SST) imagery as well as surface current observations derived from 18 years of merged-altimetry and over 2 years of Advanced Synthetic ... Read more
Alien invasive vascular plants in South African natural and semi-natural environments : bibliography from 1830

Author: Moran, VC ; Moran, PM Date: Dec 1982 A compilation of references to research on alien invasive plants in South Africa is given. Crop weeds and indigenous plants are not included. Reference is made to 457 publications. Keyword listings and a keyword index are provided. Read more
An alternative approach to mass balances in coal washing plant performance tests

Author: Savage, WHD Date: 1977 In many tests the separating bath is fed with coal covering a wide range of sizes. This note is based on a study of data contained in FRI report No. 44 of 1977. Read more
Alternative fuels for internal combustion engines. Document 3/1

Author: Van Doornum, GAW ; Gericke, EL Date: 1966 This report forms part of a three part series, investigating alternative fuels for engines. Read more
Analyses of samples from boreholes 2 and 3 on "Bankfontein 503" near Uitkyk, Transvaal

Author: Hall, PE Date: 1936 These two borehole were sunk by the Minnaar-Witbank Colliery during February 1936. Read more
The analysis of oils from the hydrogenation and supercritical gas extraction

Author: Kershaw, JR Date: 1976 The oils from dynamic and static hydrogenation, supercritical gas extraction and soxhlet extraction were separated into a number of fractions by absorption chromatography on silica-gel. The fractions from this chromatographic separation were ... Read more
Analysis of product samples taken by the Fuel Research Institute during 1972

Author: Savage, WHD Date: 1972 In Bulletin No 76, which gave average data for 1971, it was mentioned that Enyati and Vaalbank collieries ceased production during that year. Read more
An analysis of the economic efficiency of domestic air transportation in South Africa, using a scheduling model

Author: Krauklis, H Date: Aug 1985 The study revealed that the structure of the South African air transport industry is unbalanced. While SAA minimizes logistics problems for the airline and offer passengers the comfort of jet travel by standardizing its fleet to two aircraft ... Read more

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