Author:Nordengen, Paul ADate:Dec 2013The aim of this research was to apply, refine and demonstrate an alternative approach to the design and operation of heavy vehicles in South Africa with improved outcomes in terms of road transport productivity, vehicle safety performance, ...Read more
Author:Van der Merwe, AdèleDate:Apr 2008Parallel to the Open Source Software movement, there is an increased demand and need for free, open access to information resources. The Open Access initiative is characterized by two strategies: namely the promotion of self-archiving or, ...Read more
Author:Jansen van Rensburg, Gerhardus JDate:Sep 2016The Finite Element Method is a powerful tool that can be used to test, improve or better understand an industrially relevant problem. There are numerous Finite Element Analysis (FEA) software packages that operate either in the commercial, ...Read more
Author:Long, Craig S; Loveday, Philip W; Forbes, ADate:Jun 2008An intra-cavity adaptive mirror is developed for compensation of time-dependent phase aberrations to a laser beam, such as those caused by thermal lensing. The unimorph-type device consists of a metallic disc, with a mirror finish, bonded to ...Read more
Author:Paige-Green, P; Jones, DJDate:Mar 2004The data required for a road materials database was identified and a basic structure formulated during 2003. A set of Excel workbooks and associated worksheets was developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Jones, DJ; Paige-Green, PDate:Mar 2003The data required for a road materials database has been identified and a basic structure formulated. A set of Excel workbooks and associated worksheets has been developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Peach, WDate:Jun 2010Solutions to sustainability problems may be achieved through the use of new technology that reduces wastes and provides development opportunities. The impacts of technologies have to be assessed in structured approaches to provide decision-makers ...Read more
Author:Black, WA; Maasdorp, APBDate:Jun 1984Since ancient times, man has attempted to reduce the flammability of combustible materials. For example, the Egyptians soaked wood in a solution of alum in an attempt to reduce its flammability, while the Romans dipped the material of their ...Read more
Author:Maasdorp, APB; Black, ADate:Jun 1984Significant progress in the field of flame retardancy of textiles, was first observed during the second World War, which saw an increase in the commercial use of durable flame retardants.Read more
Author:Sevenster, PGDate:1964In this study of the physical properties of an inherently brittle material such as coal it is of interest to determine the effect of certain physical properties (such as porosity) on the strength of the substance.Read more
Author:Schoeman, FR; Archibald, REMDate:Sep 1977The authors in their various issues aim at describing twenty species in each issue. Failure to achieve this aim is due, partly to the short intervals between the issue dates, but more specifically to all the work involved in ensuring the ...Read more
Author:Geldenhuys, CJ; Knight, RS; Russel, S; Jarman, MLDate:1988This report lists and defines attributes (both functional and structural) that have been used in other structural classifications of forest vegetation. Field techniques are summarized. The recommended use of each attribute and technique is ...Read more
Author:Sevenster, PGDate:1958It was found necessary to conduct the investigation described in this paper when information on diffusion coefficients of some strongly adsorbed gases was required in the course of other studies on coal at the Institute.Read more
Author:Van der Walt, WDate:Feb 2011This document describes Open Source Software newly-developed under the NAP project. The software comprises a digital audio editor for the blind.Read more
Author:Van der Merwe, JP; Van Rooyen, ADate:Jan 1971Knitted all wool fabrics were treated with synthappret LKF, autoclave steamed after evacuation and finally tested for dimensional stability.Read more
Author:Van Heerden, N; Silver, HMDate:Mar 1975Wool tops were chlorinated and them acrylic staple fibres to produce blends of 75 % wool/25% acrylic and 60% wool/40% acrylic satin single jersey fabrics produced from the blends were machine-washable after autoclave decatising.Read more
Author:Esser, MJD; Bollig, C; Preussler, DRDate:2006In this work, the thermal lenses generated in diode-end-pumped Nd:YVO4 and Nd:GdVO4 lasers were evaluated and compared using a simple technique based on the stability criteria of a plane-parallel laser resonator [example 1], as shown in the ...Read more
Author:Greyling, T; Huntley, BJDate:Dec 1984This Directory provides detailed information on 155 conservation areas of greater than 1 000 ha administered by government and statutory bodies in the Republics of South Africa, Transkei, Bophuthatswana, Ciskei and Venda, and the Kingdoms of ...Read more
Author:Solsona, FDate:1990This guide will present some disinfection systems, which will be useful in supporting disinfection programmes. The description of the different systems will provide a guideline for the selection of equipment base on balancing the simplicity ...Read more
Author:Brooks, GRDate:Apr 1977This survey of current practice relating to the disposal and recycling of waste paper was commissioned by the Committee for Solid Wastes, through the National Scientific Programmes Unit of the CSIR. It was undertaken by Louis Heyl and Associates, ...Read more