Author:Wium, DJW; Ribbens, HDate:Feb 1986A method is described for setting the speed limit for a particular road section. Several speed limits based on different criteria are described for each of nine traffic and road factors. The most appropriate speed limit for each relevant ...Read more
Author:Purdy, G; Van Breda, C; Strohbach, H; Raath, JB; Godfrey, H; Kruger, MDate:Jul 1997The project was focused on the development of guidelines for the training of operators using high risk underground coal mining machinery. During the survey conducted it was noted that the multi-ethic nature of the machine operators made ...Read more
Author:Rudd, RTDate:Jan 1978Modern society is producing ever increasing quantities of dangerous and/or toxic wastes, which require safe and effective disposal if they are not to pose a threat to our water supplies or the environment in general.Read more
Author:Fourie, GA; Van Niekerk, DJDate:Nov 2001Mine planning and design involves the compilation and integration of all relevant geological, geotechnical, mining, engineering and economic data into a single document to define and describe the exploitation strategy for a particular mineral ...Read more
Author:Pienaar, PA; Mokonyama, Mathetha T; Das, DK; Pienaar, WJ; Stander, HJ; Van As, SC; Robinson, ADate:Jul 2023Roads provide linkages between cities and towns, neighbouring countries, and to other points of interest. Up until the mid-20th century, roads forming part of the national network in South Africa generally passed through cities and towns. As ...Read more
Author:Division of Roads and Transport Technology CSIR; Jordaan & Joubert Inc.Date:Mar 1993The purpose of this manual is to provide guidelines on the upgrading of gravel low volume roads to roads and maintenance personnel of road authorities of all sizes. Low volume is, for the purpose of this document, defined to be less than 500 ...Read more
Author:Matshaba, L; Nxozi, M; Herselman, Martha EDate:May 2023In the midst of dynamic healthcare needs, health information systems’ lack of interoperability continues to hinder the health sector’s ability to provide healthcare services. For instance, the recent COVID-19 epidemic has sparked discussion ...Read more
Author:Mittal, H; Maity, Arjun; Ray, SSDate:Oct 2015The main aim of this study was to develop a biodegradable flocculent and adsorbent based on the graft co-polymer of the Gum ghatti (Gg) with the co-polymer mixture of acrylamide (AAM) and acrylic acid (AA) using the microwave assisted graft ...Read more
Author:Mittala, H; Maity, Arjun; Ray, Suprakas SDate:Feb 2016Biodegradable hydrogel nanocomposites (HNC) of gum karaya (GK) grafted with poly(acrylic acid) (PAA) incorporated silicon carbide nanoparticles (SiC NPs) were synthesized using the in situ graft copolymerization method and tested for the ...Read more
Author:Van Wilgen, BWDate:2007Gums trees (in the genus Eucalyptus, from Australia) are not set to ‘disappear’ (even if some people wanted them to). Gums form an important component of the forest industry and, at last count, they covered over 540 000 ha in formal plantations ...Read more
Author:Shatalov, MY; Joubert, SV; Coetzee, CE; Fedotov, IDate:Jul 2007In symmetric distributed structures subjected to vibration and an inertial rotation, the vibrating patterns turn in the direction of revolution at a rate proportional to the inertial angular rate. This effect has numerous applications in ...Read more
Author:Butgereit, LL; Botha, AdèleDate:May 2009With the push to better school results in mathematics, science, and technology related subjects, often language education is moved into the background. In Africa, however, education is often not in the mother tongue of the learners. Pupils ...Read more
Author:Louw, Johannes A; Davel, MDate:Nov 2006Diphone-based speech synthesis has been researched for many years, and some of the most successful concatenative synthesis systems employ diphones. Such systems can produce very intelligible synthetic speech, but tend not to sound completely ...Read more
Author:Ray, Suprakas S; Kuruma, MalkappaDate:Dec 2019This book presents an overview of recent academic and industrial research efforts concerning halogen-free flame-retardant (FR) polymers and their nanocomposites. It summarizes the synthesis methods for various types of halogen-free FR polymers ...Read more
Author:Walubita, LF; Faruk, ANM; Zhang, J; Komba, Julius J; Alrashydah, EI; Simate, GSDate:Apr 2019The Hamburg Wheel Tracking Test (HWTT) is a widely used routine laboratory test for identifying and screening hot-mix asphalt (HMA) mixes that are prone to rutting. The standard HMA pass-fail screening criterion under the current HWTT protocol ...Read more
Author:Luhandjula, T; Djouani, K; Hamam, Y; Van Wyk, BJ; Williams, QDate:May 2010This paper describes an algorithm for a visual human-machine interface that infers a person’s intention from the motion of the hand. Work in progress shows a proof of concept tested on static images. The context for which this solution is ...Read more
Author:Smith, Andrew CDate:May 2009Novice programmers on the fringe of mainstream computer programming face a number of obstacles such as computer literacy and mastering the programming language syntax. Two programming environments currently available are briefly discussed as ...Read more