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
Author:Estuarine and Coastal Research Unit, ECRUDate:Apr 1981The Gamtoos has the fourth largest catchment of all the Cape rivers, with an area of 34 438 km2 which extends right up into the Great Karoo. Two large tributaries drain the eastern extremity of the Nuweveld Mountain range and the western ...Read more
Author:Sevenster, PGDate:1957The control of the operation of many processes depends largely on the control of the composition of gas mixture either used as starting materials for or appearing as products of the reaction.Read more
Author:Street, RLDate:1978This report describes an electronic control system to record and sample the flow of age in the delayed coking apparatus.Read more
Author:Erasmus, TCDate:1974During 1972 the registered vehicles in the Republic totaled 2,39 million. All these vehicles, with the exception of the motor cycles, could be run on gas. To obtain some idea of the gas quantities involved, the gas consumption, expressed as ...Read more
Author:Naidoo, NDate:Mar 2012An investigation was undertaken to study the rooting ability of E. grandis x E. longirostrata hybrid cuttings. The plant material was sourced from five families in seedling derived hedges at two nurseries, as well as five families coppiced ...Read more
Author:Carter, RA; Brownlie, SDate:Oct 1990In the Kafferkuils now known as the Goukourivier the sediment dynamics of the estuary mouth region have been altered by the breaking of the sediment pathway into the historic sediment sink east of the mouth. This is done by the initial fixing ...Read more