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
Author:Meyer, C; Du Plessis, JJL; Oberholzer, JWDate:Apr 1996An urgent need has been identified by the coal mining industry, the department of Mineral and energy affairs, and the unions regarding information to enable mine operators to address the dust problem. This handbook flows out of a SIMRAC funded ...Read more
Author:Smith, Andrew CDate:Jun 2008The author presents two technology-augmented physical materials that illiterate coders can sculpt for use as physical syntax elements in a tangible early-programming learning environment. Two physical coding sequences are given. He concludes ...Read more
Author:Dlodlo, N; Tolmay, JP; Mvelase, PDate:Mar 2012This research is about encouraging learners to participate in the management of their schools through technology and a constructivist approach. Learners populate a database with photos on the state of the school infrastructure, availability ...Read more
Author:Coetzee, L; Butgereit, L; Smith, Andrew CDate:Jun 2012In a future world where everything is connected to everything (the so-called Internet of Things), new possibilities of creating novel solutions are on the horizon. However, not all challenges of this completely connected world have been ...Read more
Author:Goedhals-Gerber, LL; Stander, C; van Dyk, EDate:Oct 2014South Africa is one of the world’s largest fresh fruit exporters, exporting a vast number of different fruit types and cultivars. The fresh fruit industry has seen significant growth in the past few years with the future looking promising. ...Read more
Author:Du Plessis, A; Roberts, DEDate:2006Presentation on hard target LIDAR calibration for SO2. This project aimed at measuring the concentration of the atmospheric pollutants such as gases and mobile laser system for remote detectionRead more
Author:Pityana, Sisa LDate:Jun 2009Metal matrix composite layers were formed on an aluminium substrate by means of laser surface alloying method. Aluminium 1200 was used as a host material and TiC particles were used as the reinforcement. The microstructure of the modified ...Read more