Author:Bidwell, NJ; Winschiers-Theophilus, HDate:Jun 2012Dilemmas arise in designing digital systems that enable rural dwellers to create, store and share digital content about their connections with their land because the design and use if technologies manifests the priorities and assumptions of ...Read more
Author:Rens, G; Ferrein, A; van der Poel, EDate:Nov 2008For sophisticated robots, it may be best to accept and reason with noisy sensor data, instead of assuming complete observation and then dealing with the effects of making the assumption. We shall model uncertainties with a formalism called ...Read more
Author:Bogaers, Alfred EJ; Kok, S; Reddy, BD; Franz, TDate:Jan 2015In this paper we introduce the idea of combining artificial compressibility (AC) with quasi-Newton (QN) methods to solve strongly coupled, fully/quasi-enclosed fluid-structure interaction (FSI) problems. Partitioned, incompressible, FSI based ...Read more
Author:Muwonge, BK; Chan, HADate:Apr 2008This paper highlights issues relating to signalling of IMS traffic, and how a truly seamless converged network may be achieved using cognitive radio technology. In this paper we propose implementation of the Resource Admission Control Subsystem ...Read more
Author:Marais, Laurette; Pretorius, LDate:Jan 2023The African languages Wordnet (AfWN) for Zulu (ZWN) was built using the expand approach, which relies on the translation of concepts in the Princeton WordNet (PWN), while retaining their PWN lexical categories. In this paper the focus is on ...Read more
Author:Taljaard, Susan; Van Niekerk, Lara; Joubert, WRDate:Nov 2009Estuaries are dynamic transition zones acting as filters and transformers of nutrients passing from catchments to the sea. The authors propose an extension to an existing southern hemisphere model on nutrient dynamics in estuaries to include ...Read more
Author:Knoesen, D; Arendse, C; Halindintwali, S; Muller, TDate:Jan 2008One of the prime components of a hot-wire (Cat) Chemical Vapor Deposition system is the filament used to pyro-catalytically crack the gases like silane. Burnt out tantalum filaments were studied to determine the possible improvement of lifetime ...Read more
Author:De Lange, Willem J; Nahman, Anton; Theron, ADate:May 2009The valuation of estuarine goods and services serves to highlight the degree to which estuaries contribute to human well-being and to show that the social cost of activities which contribute to estuary degradation could be greater than the ...Read more
Author:Peart, RDate:Jan 2001This article reviews the external factors that influence environmental performance of companies in South Africa, drawing on international and local literature. After considering factors within the natural, social, economic and institutional ...Read more
Author:Bell, Teboho; King, Gary; Litvin, IDate:Feb 2020This work proposes a method that can be used to control the transverse profile of the optical intensity distribution of a diode-end-pumped solid-state laser operating with a Gaussian seed beam. The transverse gain profie in an external amplifier ...Read more
Author:Berger, E; Crampton, Michael C; Nxumalo, NP; Louw, MEDate:Aug 2011Through modification of the flagellin type III secretion pathway of Bacillus halodurans heterologous peptides could be secreted into the medium as flagellin fusion monomers. The stability of the secreted monomers was significantly enhanced ...Read more
Author:Davel, M; Barnard, EDate:Apr 2006Various automated techniques can be used to generalise from phonemic lexicons through the extraction of grapheme-to-phoneme rule sets. These techniques are particularly useful when developing pronunciation models for previously unmodelled ...Read more
Author:Marivate, Vukosi NDate:Nov 2015The use of social media data to gain insights into public phenomena is a potentially powerful tool. We present the use of social media data analysis, connected with crime and public safety incidents, to better understand reoccurring topics ...Read more
Author:Akhoury, SS; Darlow, LNDate:Feb 2015Physiologists have found that fingerprint patterns exist in the inner layers (viz. papillary junction) of the skin
of the fingertip. However, conventional acquisition systems do not have capabilities to extract fingerprints at subsurface ...Read more
Author:Maepa, CE; Jayaramudu, J; Okonkwo, O; Ray, SS; Sadiku, ER; Ramontja, JDate:Apr 2015This article reports on the extraction and characterization of novel natural cellulose fibers obtained from the maize (tassel) plant. Cellulose was extracted from the agricultural residue (waste biomaterial) of maize tassel. The maize tassel ...Read more
Author:Jezko, JDate:1974The atmosphere of an insert gas below its critical temperature has little effect on the vapor pressure of liquids and solids that may be associated with it, but on the raising the temperature of the gas a remarkable increase in the vapor ...Read more
Author:Johnson, M; Lück-Vogel, MelanieDate:May 2017The coastal zone occurs at the interface of three major natural systems. These systems include the atmosphere, the ocean and the land surface. Ocean waves are among the most important forces shaping the world¿s coastlines. They drive environmental ...Read more
Author:Johakimu, Jonas K; Sithole, Bishop BDate:Sep 2017This work summarises the findings of our research on the activation of woodchips using weak white liquor as an alternative mill self-generated alkaline solvent. The ultimate goal was to gain a better understanding on: the effectiveness of the ...Read more