Author:Naidoo, SashaDate:Mar 2011This research aimed to quantify and model the effects of specific environmental variables on the wood quality of Eucalyptus grandis in the warm temperate (WT) and sub-tropical (ST) forestry regions in South Africa using nondestructive, rapid ...Read more
Author:Le Roux, AlizeDate:Aug 2012Land use policies have a definite and lasting impact on the way that cities grow, however, the change in land use only gets observed many years later. As such, it is difficult for policy and decision makers to observe and quantify the ...Read more
Author:Copeman, JH; Von Wolff, WTEDate:1968When certain component, in a mixture with other components, has to be determined in a sample, one cannot directly compare line intensities of the pure component, proposed under identical conditions as the sample, because of the absorption ...Read more
Author:Greben, JMDate:2011A new application of quantum field theory is developed that gives a description of the internal dynamics of dressed elementary particles and predicts their masses. The fermionic and bosonic quantum fields are treated as interdependent fields ...Read more
Author:Burns, MER; Du Plessis, MA; Verwoerd, DJDate:Feb 1988The Quko Estuary is referred to locally as Double Mouth, after the confluence of the two rivers which takes place to the mouth. The name is somewhat misleading, as it could imply that the Quko River enters the sea at two places which is not ...Read more
Author:Austin, BADate:2013This report forms a summary of the work done by the Chamber of Mines Research Organization before it merged with the CSIR. It deals with gold mining in South Africa, and contains a summary of the work that was done on underground radio.Read more
Author:Chidi, MCDate:15 Feb 2010The report highlights the different methods of collecting and storing rainwater before it enters the soil or flows into the streams. Some of the methods described are intercepting the rainfall, landscapes and treatment of catchmentsRead more
Author:Turpie, DWFDate:Feb 1975The spindle speed of a 144 spindle ring frame was increased in steps at a given rate during the spinning of wool to relatively fine counts until all ends were down.Read more
Author:Van Eeden, GSDate:1965Due to the amount of time by the standard method of moisture determinations of coal by heating in a vacuum oven at 100C for two hours, this method is not suitable for certain industrial applications.Read more
Author:Bathie, LADate:Nov 1984Waste is an undesirable but inevitable by-product in any manufacturing process and is frequently undervalued. The production of waste yarns by the waste spinner was traditionally carried out by condenser spinning in which the material was ...Read more
Author:Paige-Green, PDate:04 Jun 2009An investigation into the performance of 57 sections of road in South Africa identified by the Provincial Road Authorities as being constructed using marginal quality base course materials has been carried out. The investigations has shown ...Read more
Author:Meintjies, AADate:1966The document elaborates on a recording methanometer (prototype) that will determine the effect of mining operations and other factors such as changes in atmospheric pressure on the discharge of methane concentration for extended periods.Read more
Author:Meintjies, AADate:1963An optical extensometer was devised for measuring the linear expansion and contraction of slid blocks of coal occurring during the adsorption or desorption of moisture from the surrounding atmosphere.Read more
Author:Nurse, RH; Symindton, NC; Brooks, GR; Dev, LJDate:Jun 1976The National Programme for Environmental Sciences aims at identifying, evaluating and working towards solutions for environmental problems through cooperative studies drawing together interested scientists from various sectors. Apart from ...Read more
Author:Heim, FODate:1974When a diesel engine is operated on diesel oil at a high altitude, as on the Highveld, it is in most cases impossible to obtain the rated output without heavy smoke emission.Read more
Author:Frost, PGHDate:1987This report deals with the South African Savanna Ecosystem Project study site at the Nylsvley Provincial Nature Reserve, northern Transvaal. In particular, a description of the environmental features and ecological processes active in the ...Read more
Author:Bosire, J; Celliers, Louis; Groeneveld, J; Paula, J; Schleyer, MHDate:Dec 2015The Western Indian Ocean (WIO) region spans across a large latitudinal range, from the Somalia region, influenced
by the strong monsoon regime of the northern Indian Ocean, to the southern temperate regime of the tip of
South Africa, where ...Read more
Author:De Beer, Morris; Van der Merwe, CJ; Rohde, GTDate:1997This report contains a set of practical course notes on the Rehabilitation Design of flexible pavements in southern Africa based on extensive research by various researchers and / or practitioners in South Africa. The course is intended for ...Read morecb
Author:Savage, WHDDate:1965In the above paper analyses of samples taken in the Wilsontown main seam. Riddochhill colliery at sixty-nine five foot intervals from a large vertical dyke are given.Read more
Author:Masindi, VhahangweleDate:Dec 2015Wastewaters originating from mining activities are usually acidic and often contain high concentrations of Fe, Mn, Al and SO 2 in addition to traces of Pb, Co, Ni, Cu, Zn, Mg, Ca and Na. This wastewater impacts surface and subsurface water ...Read more