Author:Myburgh, HC; Olivier, JCDate:May 2009This work proposes a near-optimal hard output neural network based iterative Maximum Likelihood Sequence Estimation (MLSE) equalizer, based on earlier work by the authors, able to equalize single carrier 4-QAM signals in underwater acoustic ...Read more
Author:Myburgh, HC; Olivier, JCDate:May 2009This work proposes a neural network based iterative Maximum Likelihood Sequence Estimation (MLSE) equalizer, able to equalize signals in M-arry Quadrature Amplitude Modulation (M-QAM) modulated systems in a mobile fading environment with ...Read more
Author:Oberholster, Paul J; Cheng, Po Hsun HDate:Sep 2016This presentation discusses a low cost algae-based tertiary treatment for waste water treatment works in rural areas of developing countries. The focus areas of the presentation include water availability in Africa and climate change, ...Read more
Author:Kuchena, JC; Usiri, PDate:Sep 2009Low cost or affordable construction technologies and materials are often touted as a panacea in meeting the ever growing demand for rapid housing delivery in developing economies. Mozambique as with most of the developing world, from both ...Read more
Author:Land, K; Mbanjwa, MB; Govindasamy, K; Korvink, JGDate:Sep 2011A method to easily manufacture and assemble a polydimethylsiloxane (PDMS) based microfluidic device is described. The method uses low cost materials and reusable laser cut polymethyl methacrylate (PMMA) parts. In addition, the thickness of ...Read more
Author:Grobler, Inus; Gitau, MNDate:Jun 2013An extended pre-compliance measurement setup has been created in the development laboratory to measure and diagnose conducted EMI up to tOO MHz without the use of a spectrum analyser. A dual compact Line Impedance Stabilisation Network (LISN) ...Read more
Author:Apps, PDate:Jun 2006Natural materials are so complex that no single column can separate all of the components. Heart cutting 2-D GC (GC-GC) using a Deans switch provides maximum separation, but the requisite gas flow configurations have earned a reputation for ...Read more
Author:Rademeyer, E; Van der Walt, Christiaan M; De Waal, ADate:Dec 2016This paper investigates the performance of two-class classification credit scoring data sets with low default ratios. The standard two-class parametric Gaussian and non-parametric Parzen classifiers are extended, using Bayes’ rule, to include ...Read more
Author:Bhaumik, M; Maity, Arjun; Mahule, TS; Srinivasu, VVDate:Mar 2019Low field microwave absorption (LFMA) in conducting polymers is completely different as compared to magnetic systems and is very intriguing. To understand LFMA phenomenon in the conducting polymers, we studied LFMA in the conducting polyaniline ...Read more
Author:Smakhtin, VUDate:10 Jan 2001The paper intends to review the current status of low-flow hydrology — a discipline which deals with minimum flow in a river during the dry periods of the year. The discussion starts with the analysis of low-flow generating mechanisms operating ...Read more
Author:Monteiro, Pedro MS; Van der Plas, AKDate:Sep 2006LOW variability in the Benguela is governed by varying scales of remote and local forcing linked to both Equatorial and Cape Basin systems. The nature of these nonlinear interactions is not clearly understood because scales are large and their ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Nov 2020The Internet of Things (IoT) is an emerging paradigm that enables many beneficial and prospective application areas, such as smart metering, smart homes, smart industries, and smart city architectures, to name but a few. These application ...Read more
Author:Nithyadharseni, P; Reddy, MV; Ozoemena, KI; Balakrishna, RG; Chowdari, BVRDate:Oct 2015For the first time, yttrium tin oxide (Y(sub2)Sn(sub2)O(sub7)) compound is prepared at low temperature (400 _C) with cubic pyrochlore structure via molten salt method using KOH as a flux for their electrochemical applications. The final product ...Read more
Author:Karem, TR; Chan, HADate:Jul 2007This study investigates the problem of ring-node assignment in a Multiservice SDH/SONET Optical network design with Network capacity constraint. The problem is characterized as a graph-partitioning problem, and a heuristic algorithm based on ...Read more
Author:Babajide, O; Petrik, L; Amigun, B; Ameer, FDate:Oct 2010Biodiesel has attracted increasing interest and has proved to be a good substitute for fossil-based fuels due to its environmental advantages and availability from renewable resources such as refined and waste vegetable oils. Several studies ...Read more
Author:Luo, H; Mathe, Mahlanyane KDate:31 Aug 2010Energy is one of the most important factors that will influence the shape of society in the 21st century. Fuel cells are electrochemical energy converters, transforming chemical energy directly into electricity. Fuel cells are the main zero ...Read more
Author:Bezuidenhout, Petrone H; Smith, Suzanne; Land, Kevin J; Joubert, T-HDate:Sep 2017The work presented details the development of a lowcost potentiostat, with the aim of creating an ink-jet printed hybrid paper-based low-cost sensing system for rapid water quality monitoring. Potentiostats exhibit high sensitivities and can ...Read more
Author:Cummings, FDate:Sep 2010This paper provides a background to photovoltaics, and goes on to discuss dye-sensitised solar cell research and development at the CSIR. An overview of TiO2 nanotube synthesis is given, followed by the discussing the manufacturing process ...Read more
Author:Smith, Andrew CDate:Jul 2008We present a low-cost, low-energy technology design that addresses the lack of readily available functional computers for the vast number of computer-illiterate people in developing countries. The tangible programming language presented is ...Read more