Author:Nyirenda, CN; Dawoud, DSDate:Sep 2007In 802.11 Wireless Local Area Networks, the wired and the wireless interfaces of the Access Point are characterized by the disparity in channel capacity. This presents a significant bottleneck for traffic flowing from the wired network to the ...Read more
Author:Kufakunesu, R; Hancke, G; Abu-Mahfouz, Adnan MIDate:Oct 2022Long Range Wide Area Network (LoRaWAN) technology is rapidly expanding as a technology with long distance connectivity, low power consumption, low data rates and a large number of end devices (EDs) that connect to the Internet of Things (IoT) ...Read more
Author:Day, J; Siegfried, WR; Louw, GN; Jarman, MLDate:Dec 1979Current knowledge and thinking on the ecology of the Mediterranean type sclerophyll shrublands and heath lands of the southern and south-western Cape is reviewed in 13 concise syntheses. The Fynbos Biome is defined and characterized in terms ...Read more
Author:Deacon, HJ; Hendey, QB; Lambrechts, JJNDate:Dec 1983Current knowledge of aspects of the geology, soils and palaeontology relevant to the study of the palaeoecology of the fynbos region, the southern margin of the African continent, is surveyed in nine essays and three introductory reviews. ...Read more
Author:Kleinhans, A; Rosman, Benjamin S; Michalik, M; Tripp, B; Detry, RDate:May 2015Autonomous grasping is a problem that receives continuous attention from our community because it is both key to many applications, and difficult to solve. The complexity of robot grasping is counter-intuitive. For us humans, planning a grasp ...Read more
Author:Boesack, CD; Marwal, T; Nelwamondo, Fulufhelo VDate:Oct 2011This paper presents a GA-Fuzzy Automatic Generation Controller for large interconnected power systems. The design of Fuzzy Logic Controllers by means of expert knowledge have typically been the traditional design norm, however, this may not ...Read more
Author:Burke, Michael G; Brink, WDate:Aug 2011This paper presents a gain-scheduling controller for a human-following robot. Typical controllers use either a point-to-point approach where the relative orientation between human and platform is uncontrolled, or a direction-based approach ...Read more
Author:Smith, Andrew CDate:Apr 2007The authors propose a system designed for pre-school children that offers an alternative introduction to the world of Information and Communication Technologies (ICT), specifically computer programming. Illiterate children can construct simple ...Read more
Author:Botha, Adèle; Herselman, Martha E; Ford, MDate:May 2014Gamification in education refers to the application of game dynamics, mechanics into the teaching and learning engagement. This paper makes a case for viewing the objective of Educational Gamification as a Gameful Educational User Experience. ...Read more
Author:Estuarine and Coastal Research Unit, ECRUDate:Apr 1981The Gamtoos has the fourth largest catchment of all the Cape rivers, with an area of 34 438 km2 which extends right up into the Great Karoo. Two large tributaries drain the eastern extremity of the Nuweveld Mountain range and the western ...Read more
Author:Linganiso, EC; Rodrigues, R; Mhlanga, SD; Mwakikunga, Bonex W; Coville, NJ; Hümmelgen, IADate:Dec 2013The wide band-gap semiconductor material gallium nitride was synthesized using a one step microwave-assisted solution phase technique. The synthesized GaN nanocrystals showed an intense ultraviolet-blue emission typical of GaN materials. ...Read more
Author:Sevenster, PGDate:1957The control of the operation of many processes depends largely on the control of the composition of gas mixture either used as starting materials for or appearing as products of the reaction.Read more
Author:Ncube, EN; Mathiba, Kgama; Steenkamp, Lucia H; Dubery, IADate:Oct 2021Hyphozyma roseoniger is a filamentous yeast used for its biocatalytic ability to convert sclareol, a plant diterpenoid to ambradiol, an intermediate to ambrafuran, which is a sought-after fixative in the perfume industry. Metabolite profiling ...Read more
Author:Pityana, Sisa L; Mahamood, RM; Akinlabi, ET; Shukla, MDate:Mar 2013Tracks of Ti6Al4V powder were deposited on Ti6Al4V substrate using Laser Metal Deposition (LMD) process, an Additive Manufacturing (AM) manufacturing technology, at a laser power and scanning speed maintained at 1.8 kW and 0.005 m/s respectively. ...Read more
Author:Mafusire, C; Forbes, A; Snedden, Glen C; Mahlase, Andrew CK; Michaelis, MM; Mathuthu, MDate:Jul 2006When a heated pipe is rotated, the dynamics of the gas inside exhibit properties reminiscent of a solid-state positive lens. The properties are a result of a parabolic distribution of refractive index in the pipe which is caused by mixing of ...Read more
Author:Street, RLDate:1978This report describes an electronic control system to record and sample the flow of age in the delayed coking apparatus.Read more
Author:Erasmus, TCDate:1974During 1972 the registered vehicles in the Republic totaled 2,39 million. All these vehicles, with the exception of the motor cycles, could be run on gas. To obtain some idea of the gas quantities involved, the gas consumption, expressed as ...Read more
Author:Landman, KDate:Aug 2000In many instances the urban future is shaped by specific and powerful ideas. “Gated communities” is one such an idea, which has the potential to radically transform the urban environment in the 21st century. As a strong and influential urban ...Read more