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
Author:Heydorn, HJDate:Feb 1989This report provides historical overview on river catchment, ecology, biotic and abiotic characteristics and available information on the Gourits estuary. The Gourits Estuary, in common with other estuaries whose mouths are open for part or ...Read more
Author:Savage, WHDDate:1965During the latter portion of last year, General Mining acquired the coal rights of Vrisgewaagd Antracite, Gluck Auf Anthracite, and the dormant Riversdale Anthracite.Read more
Author:Van der Walt, PJDate:1949The problem of predicting practical yield and ash values when washing coal in a specified type of washer based on float and sink data obtained from laboratory tests is discussed in this report.Read more
Author:Estuarine and Coastal Research Unit, ECRUDate:Jun 1981The state of knowledge of the Groen is poor. The area, being remote, has received little attention in the past and the bulk of information in this report originates from the Estuarine and Coastal Research Unit (ECRU) survey. Although the Groen ...Read more
Author:Harmse, M; Von, HJDate:Sep 1977The soils of the Nylsvley Nature Reserve are classified according to the binomial system and mapped on a scale of 1:5 000. 17 soil forms and 34 soil series are described. The main soil forms within the Savanna Ecosystem Project study area ...Read more
Author:Morant, PD; Bickerton, IBDate:Jun 1983Little is known of the early history of the area surrounding the Groot and Sout estuaries. The densely forested terrain dissected by deep gorges caused the area to be avoided by early travellers who used the inland route via the Langkloof to ...Read more
Author:Morant, PDDate:Dec 1983The Great Brak estuary has been endowed with great scenic beauty and recreational potential. The estuary and environs thus offer a great challenge for progressive development with the needs of existing industries and residential areas having ...Read more
Author:Goldbach, ODDate:Oct 1991This report looks at the ground motion from 24 small magnitude seismic events recorded at various points inside a backfilled stope. The in-stope ground motion is compared to that recorded at an off-reef site. The seismic events are analysed ...Read more
Author:Frost, B; Mayers, J; Roberts, SDate:2003Certification has developed more rapidly in South African forestry than in most countries of the South. This report looks at the motivations behind the spread of certification in the South African forest and wood products industry and describes ...Read more
Author:Komakech Otim, CDate:Dec 2008A study was undertaken to compare growth potential of three Eucalyptus species of natural origin in South Eastern Australia, with commercially grown species on mid and high altitude temperate sites in the summer rainfall growing zones in South ...Read more
Author:Tainton, MNDate:Dec 1984Research into the management of grassland communities in South Africa spans a period of more than 50 years. The work has covered a wide range of topics relating to the form and function of grassland communities, and has had as its main objective ...Read more
Author:Stewart, JM; Whillier, ADate:Apr 1978This report is intended primarily for ventilation staff on mines, but is also of importance to management. In the gold mining industry the assessment of heat stress is likely to be for one of three purposes: to assess either the average or ...Read more
Author:Meiring, PGJ; Drews, RJLC; Van Eck, H; Stander, GJDate:Jan 1968Some of the effluents from the sewage purification systems covered by this report show quite marked seasonal variations. No assurance can be given that the effluents would meet promulgated standards from season to season. The effluent from ...Read more
Author:Chiloane, Lehlogonolo DDate:Sep 2017This document aims to guide public entities on cost-efficient ways to procure photovoltaic (PV) assets. Traditionally, responses to the request for proposals for the engineering, procurement and construction (EPC) of a photovoltaic asset for ...Read more