Author:Viljoen, GADate:1973Amplifier to be described was developed and built as a requirement for the "Delayed Coking" apparatus constructed at the Institute.Read more
Author:Bonapace, ACDate:1977The friction factor of a stream carrying a fully suspended load of particles is analyzed. Friction factors of the suspension coincide with those of the pure liquid, if referred to the actual fluid velocity, i.e. less than the friction factors ...Read more
Author:Hall, GC; Gorgens, AHMDate:Mar 1978Several South African rivers are polluted by mineral salts of diffuse source. This pollution can be related to geological phenomena and to irrigation practices. Mineralization is problematic in that it can render surface waters unsuitable for ...Read more
Author:Sevenster, PGDate:1958The experimental conditions in such investigations were usually chosen to stimulate those encountered in practice and generally do not lend themselves to the study of the fundamental processes involved in the absorption of gasses and vapors ...Read more
Author:Van Rooyen, B; Hunter, IM; Slinger, RIDate:Nov 1971This report details the relationship between the values obtained on a Shirley Constant tension Winding ester and certain yarn properties, such as tensile strength, irregularity, twist etc.Read more
Author:Sevenster, PG; Meintjies, ADate:1964This paper is concerned with a different type of coal degradation which occur not only in coal already broken from the seam but is also noted on exposed faced in the workings of collieries where it may cause dangerous working conditions.Read more
Author:Van der Walt, PJDate:1950Although the union of South Africa possesses reasonably large reserves of coal of various qualities, the reserves of coking coal are comparatively small and are being exhausted at an alarming rate. The proven reserves of coking coal are ...Read more
Author:Streicher, SFDate:1964The application of mechanical mining methods in the coal in increase fines production and decrease the selectively in mining.Read more
Author:Muller, EFEDate:1973The weathering or atmospheric oxidation of coal as evidence by change of properties, especially the coking propensity, is becoming of increasing importance now that low-ash blend coking coal from the Witbank area is being exported to Japan.Read more
Author:Scholes, RJ; Savage, MJDate:1989The parameters used to describe the flow of water, and energy to a lesser extent, through the soil-plant-atmosphere continuum are reviewed and the techniques used for estimating their values contrasted. The measurements which are necessary ...Read more
Author:Theyse, HLDate:Feb 2002Masters Degree Thesis: HL Theyse - The development of mechanistic-empirical permanent subgrade deformation models from heavy vehicle simulator data.
The work was aimed at improving the accuracy of one of the components of a flexible pavement ...Read more
Author:Van Der Merwe, CJDate:Sep 1993The report describes the findings of the research project on subsurface drainage. The need for drainage was quantified by evaluating HVS tests on wet pavements. Geotextiles were investigated and various tests performed. Soil/geotextile ...Read more
Author:Swanepoel, HDate:Nov 2011The pollution of South Africa’s water resources puts a strain on an already stressed natural resource. One of the main pollution sources is industrial effluents such as acid mine drainage (AMD) and other mining effluents. These effluents ...Read more
Author:Hunter, LawranceDate:Nov 1987The South African Wool and Texttile Research Institute (SATRI) was established in Grahamstown in the early 1950;s upon the inactive of the South African wool board. This followed the recommendation of Professor J.B Speakman (Professor of ...Read more
Author:SANCORDate:Dec 1989The South African National Committee for Oceanographic Research has coordinated and administered a significant portion of the marine research conducted in South Africa under seven sub-programmes. These are: Benguela Ecology, Coastal Processes, ...Read more
Author:Maharaj, VJDate:Dec 2011The CSIR has acquired the reports to 14 clinical studies in which Hoodia has been assesses, using crude extracts and concentrated active ingredients formulated in a number of different ways. In many of the studies Hoodia was found to be ...Read more
Author:Labuschagne, Philip WDate:Oct 2010The use of supercritical CO2 as medium in polymer processing eliminates many of disadvantages associated with other means of processing, i.e. high temperatures or toxic solvents. The “soft” processing conditions make CO2 specifically suitable ...Read more
Author:Dudley, Angela LDate:Jan 2012The work presented in this thesis is centred on the generation of superimposed optical fields which each carry orbital angular momentum (OAM) and the development of OAM measurement techniques. Optical fields which carry OAM have found ...Read more