Author:Garner, E; Barkenhuysen, FADate:Dec 1984The bleaching of cotton fabrics with radio frequency (RF) energy was investigated and compared with conventional pad-steam bleaching.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, DWF; Cizek, JDate:Sep 1987One of the unique features of the SAWTRI Length/Strength Tester for raw wool staples is that it provides automatic measurement of the staple profile in addition to data on staple length and strength.Read 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:Viljoen, GA; Kuhn, AH; Erasmus, TCDate:1974A sample of coal submitted by the Somerset Mining Company was treated in the Institute's coal preparation pilot plant as Pretoria West. The major portion of the relative density float product prepared in the Drewboy washer, was subsequently ...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:Bonapace, AC; du Toit, PDate:1975Some physical expressions relating the parameters of the magnetic field have been derived. A description of the magnetic field was carried out by measuring the magnetic flux intensity at various points along the drum circumference and at ...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:Swanepoel, OA; Van Rooyen, ADate:Nov 1969The loss of weight wool shockproof with DCCA is dyed was investigated and methods of reducing this loss by introducing cross linkages into the protein were examined.Read more
Author:Vogel, JCDate:1938The high capital cost of coal hydrogenation plant makes it essential that oil output be maintained at high level as possible as this factor must primarily govern the choice of the coal to be used or the decision as to whether as coal is ...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