Author:SANCORDate:Jan 1978With the ever-increasing demands on the resources of our planet, man's attention during recent years has turned more and more to the resources of the ocean and it is being increasingly recognised that the proper exploitation and conservation ...Read more
Author:Gray, DDate:1978The COED-process, a fluidized-bed pyrolysis coal conversion technique, is described in considerable detail. Using Illinois 6 coal as feedstock for the process, the coal is taken through the pyrolysis stages to produce a raw pyrolysis oil. ...Read more
Author:Maasdorp, APB; Black, WADate:Apr 1983The photochemical degradation of unpigmented and unstabilised polypropylene films can be monitored coloremetrically following reaction of the carbonyl groups produced, with 2,4-dinitrophenylhydrazone produced under acidic conditions.Read more
Author:Van Doornum, G.A.WDate:1968Many smokeless fuels are of low reactivity and thus not very suitable for use in open fire places as the ignition delay is unduly long and rate of heat release is low. It would appear that these properties may be modified in a favorable sense ...Read more
Author:Van Doornum, GAWDate:1967The object of the tests was to compare the relative effectiveness of these fuels and to observe any ash content and the presence of a high proportion of dull material.Read more
Author:Quass, FWDate:1946In order to establish the relative suitable for steam raising purposes of South African anthracite, firing tests were carried out in an experimental furnace on a number of nut size largely on the anthracite.Read more
Author:Van Eeden, GSDate:1965The purpose of these tests was to assess whether anthracites of high ash content or could be used as a low-cost smokeless domestic fuel.Read more
Author:Mogane-Ramahotswa, B; Still, DDate:Jan 1992One of the most important aspects of suitability of water supply is the ability of the community to manage its own scheme. Unlike in urban settlement institutional arrangements for rural water supply are rudimentary. Over the past decade, ...Read more
Author:Ojwang, ADate:2000Partnerships between communities and private companies have been tried and tested in various regions within Africa and the world. Community-Private-Public Partnerships exist in various sectors such as mining, agriculture, tourism and forestry. ...Read more
Author:Kelly, IWDate:May 1975Applying amounts of resin greater than 5 per cent (on mass of cotton) to cotton/polyester blend fabrics and dry curing the fabrics to not improve the easy-care properties of the fabrics to any extent.Read more
Author:Kelly, IWDate:May 1974The physical properties of a series of plain weave fabrics from cotton blended with polyester were measured and compared.Read more
Author:Robinson, GA; Turpie, DWFDate:Oct 1978The performance and physical properties of fibre, yarn and fabric produced from a 64's quality imported merino wool, a Cape merino 64's wool and a 50/50 blend of these has been investigated.Read more
Author:Hunter, L; Smuts, SDate:Feb 1978This report is concerned with the yarn frictional properties, which were not covered in the earlier studies, the knitting performance of the yearns and the physical properties of the resulting fabrics.Read more
Author:Savage, WHDDate:1974At various times complaints have been received from the Transvaal Coal Owners Association and collieries about low calorific values obtained by the Institute on samples taken for the S.A.R locomotive contract.Read more
Author:Hunter, L; Gee, E; Smuts, SDate:Jul 1981In spite of the widely reported similarity of properly constructed STT yarns and two-ply ring spun yarns in terms of physical properties and weaving performance, a mill with a large Repco installation approached SAWTRI because of problems ...Read more
Author:Shiloh, MDate:Oct 1973Plain and twill weave light weight suiting fabrics were woven from each of three types of yarns; all-wool, 80/20 wool/nylon staple blends and 80/20 wool/nylon filament cores.Read more
Author:Bird, SLDate:Dec 1984The Stoll (flex), Martindale and Accelerator abrasion results of 64 plain and twill weave fabrics of differing fibre content and fabric mass were determined and compared.Read more
Author:Hunter, LDate:Aug 1983Airflow measured micronaire, maturity and fineness values, obtained on lap and card and drawframe slivers, have been compared, the samples having been prepared for testing by opening and randomisation on wither a Shirley analyzer or an Essdiel ...Read more
Author:Quass, FW; Coetzee, SDDate:1946Volatile determinations were carried out on nut and powdered coal samples in an electric muffle furnace.Read more
Author:Hunter, L; Cawood, MP; Dobson, DADate:Sep 1981The performance of three different types of knots (dogs, fisherman's and weavers) during the knitting of different single jersey and double jersey structures has been compared.Read more