Author:Morton, B; Theyse, HLDate:Mar 2003After many years of owning and operating a Heavy Vehicle Simulator (HVS) Mk III, Gautrans acquired a HVS Mk IV+ in May 2002. In addition to the advanced features that this machine possesses in comparison to its predecessor, the HVS Mk IV+ ...Read more
Author:Erasmus, TCDate:1965Flame propagation in pulverized coal-air-mixtures may be studies by placing an ignition source in a pulverized-coal-air-stream. The fuel-air-mixture is ignites at the source and the flame propagates laterally into the stream to form a conical flame.Read more
Author:Copeman, JH; Von Wolff, WTEDate:1968The present study was undertaken to establish to what extent the method could be applied to analysis of coal ashes.Read more
Author:Van der Zel, DWDate:1988Even after 300 years of indigenous forest protection as well as 100 years of plantation forestry, no forestry map of South Africa was available. The development and availability of LANDSAT images in the early 1970s opened possibility to use ...Read more
Author:van der Zel, DWDate:1988Even after 300 years of indigenous forest protection as well as 100 years of plantation forestry, no forestry map of South Africa was available. The development and availability of LANDSAT images in the early 1970s opened up possibilities to ...Read more
Author:Hamman, JDate:2000The IIED and CSIR have embarked on a joint study on Instruments for Sustainable Private Sector Forestry. In terms of this study, a sub-study on the experience of persons involved in the certification process was commissioned. Being on these ...Read more
Author:Khosa, MDate:2000The outsourcing of forestry activities over the past decade has created an industry with an annual turnover of R600 million and 35000 employees (Edwards, 2000). During the past decade forestry companies have switched from employing some of ...Read more
Author:Naidoo, Sasha; Davis, C; Archer, Emma RMDate:Sep 2013This paper provides an analysis of the implications of climate change for forests and rangelands in southern Africa. The extent of the resources and their economic and social functions and drivers of change is outlined. The vulnerability of ...Read more
Author:Denneman, EDate:May 2011An innovative pavement system known as Ultra Thin Continuously Reinforced Concrete Pavement (UTCRCP) was recently developed in South Africa. The technology is currently being implemented on some major routes in the country. The system consists ...Read more
Author:Schutte, IC; Roodt, LDe VDate:02 Jun 2009Speed plays an important role in the justification of road infrstructure projects. It affects both vehicle operating cost and travel time cost. If incorrecr values for speed are used in the economic analyses of transport projects, incorrect ...Read more
Author:Meintjies, AADate:1968Field testing of the FRI methanometer is in progress at D.N.C colliery. This work was undertaken to investigate the reliability of the instruments and to train personnel to operate and service them before any extensive study should be started ...Read more
Author:La Grange, CCDate:1965In the previous report the advantages and disadvantages of predying and preheating coke oven charges were briefly dealt with and some literature references on the subject were cited. The present report covers further investigations along ...Read more
Author:La Grange, CCDate:1963The first series of tests in this programme was carried out in the letter half of 1962, and the results were communicated in FRI Technical Memorandum No. 21 of 1962.Read more
Author:Kuiters, A; Van Doornum, GAWDate:1969A further examination of these models revealed that the coal feed rate did not permit a very much greater output that was achieved during the experiments. The units were retested at full load, while some additional trials at reduced load were ...Read more
Author:Day, J; Siegfried, WR; Louw, GN; Jarman, MLDate:Dec 1979Current knowledge and thinking on the ecology of the Mediterranean type sclerophyll shrublands and heath lands of the southern and south-western Cape is reviewed in 13 concise syntheses. The Fynbos Biome is defined and characterized in terms ...Read more
Author:Deacon, HJ; Hendey, QB; Lambrechts, JJNDate:Dec 1983Current knowledge of aspects of the geology, soils and palaeontology relevant to the study of the palaeoecology of the fynbos region, the southern margin of the African continent, is surveyed in nine essays and three introductory reviews. ...Read more