Author:De Witt, JJ; Nel, Willem AJDate:Oct 2008A dechirp on receive (DoR) concept demonstrator was recently implemented on the Fynmeet radar system of the CSIR, in an attempt to extend its high range resolution (HRR) measurement capabilities. Based on the low dynamic range observed in ...Read more
Author:Mkwelo, Simpiwe; De Jager, G; Nicolls, FDate:Nov 2007This paper presents another approach to segmenting a scene of rocks on a conveyor belt for the purposes of measuring rock size. Rock size estimation instruments are used to monitor, optimize and control milling and crushing in the mining ...Read more
Author:Landman, WA; Barnston, AG; Vogel, CDate:Sep 2015Some of the biggest emerging markets economies include countries in South America, Asia and Africa. In the global south, political and developmental similarities (e.g. climate variability occurring in conjunction with marked developmental ...Read more
Author:du Preez, WB; de Beer, DJDate:Jun 2006The ability to design and develop new products is generally accepted as a strong enabler for improving the competitiveness of a country’s manufacturing industry. This paper describes the establishment and evolution of the Rapid Product ...Read more
Author:Ngamsom, B; Fourie, L; Tarn, MD; Kumar, S; Moodley, K; Land, K; Pamme, NDate:Oct 2016The present investigation reports isolation and detection of E. coli O157:H7 employing a simple and portable microfluidic device based on immiscible filtration assisted by surface tension (IFAST) and adenosine triphosphate (ATP) bioluminescence ...Read more
Author:Ramunyisi, Ndivhuwo S; Badenhorst, Jacob AC; Moors, Carmen; Gumede, TebogoDate:Sep 2018Speech-driven command and control is increasingly gaining momentum in the world around us. Using human speech to control appliances in trendy living spaces allows a user to control many appliances remotely. This paper discusses the rapid ...Read more
Author:Smith, S; Chen, H; Moodley, K; Joubert, T; Land, KDate:Nov 2014We present a method for rapid and low-cost development of microfluidic diagnostic devices using paper-based techniques. Specifically, the implementation of fluidic flow paths and electronics on paper are demonstrated, with the goal of producing ...Read more
Author:Pereira, MFVDate:Nov 2006The goal is to use Rapid Prototyping Techniques (RPT) for the direct manufacture of die components which can produce low volumes parts. The advantages of the results include: Conformal cooling; Good heat dissipation; Shorter turn around time; ...Read more
Author:Gibberd, Jeremy TDate:Dec 2020Many areas of South Africa experience water shortages and unreliable water supplies. Water and sanitation costs at South African municipalities have been steadily rising in the last 5 years and are particularly high in water-stressed areas ...Read more
Author:Land, K; Hugo, S; Mbanjwa, M; Fourie, LDate:Oct 2012Microfluidics refers to the manipulation of very small volumes of fluid. Microfluidics is
at the forefront of developing solutions for drug discovery, diagnostics (from glucose
tests to malaria and TB testing) and environmental diagnostics ...Read more
Author:Madzivhandila, Phophi; Smith, Suzanne; Roux, Pieter; Land, Kevin; Wiederoder, MichaelDate:Nov 2016We present modular centrifugal microfluidic devices that enable a series of blood tests to be performed towards a full blood count. The modular approach allows for rapid prototyping of device components in a generic format to complete different ...Read more
Author:De Ronde, Willis; Swart, JHDate:Nov 2016Building a robotic platform from raw materials can take anything from a few weeks to a few years to complete, depending on the complexity and size of the platform. This paper aims to introduce a novel approach of using abrasive waterjet ...Read more
Author:Hugo, S; Land, K; Madou, M; Kido, HDate:Oct 2013The work presented here details the implementation of a centrifugal microfluidic platform – the first of its kind in South Africa – as a foundation for the development of various microfluidic operations. Microfluidic systems enable the precise ...Read more
Author:Awuor, F; Djouaniy, K; Noelz, G; Olwal, TDate:Sep 2011Nodes in ad hoc networks are autonomous and selfconfiguring with no form of centralized administration such that nodes are free to selfishly optimize their individual utilities without considering utilities of other network users. This compels ...Read more
Author:Canbulat, I; Dlokweni, TDate:Sep 2002It is standard practice in the majority of rock engineering applications to use a rock mass classification method to evaluate the condition of rock, i.e. to quantify, in an objective manner, the characteristics of good or bad roof. These ...Read more
Author:Wall, K; Rust, CDate:Dec 2015In 2006 the South African Institution of Civil Engineering (SAICE), in partnership with the Council for Scientific and Industrial Research (CSIR), released the first ever “report card” assessment rating of the condition of engineering ...Read more
Author:Perlow, J; Rosman, Benjamin S; Hayes, B; Ranchod, PDate:Nov 2017An important step in the construction of novel objects is the ability to recognise combinations of raw materials which are likely to be useful. We aim to exploit the intuition that the visual characteristics of candidate raw materials provide ...Read more
Author:Charyulu, DV; Sivakumar, V; Bencherif, H; Narayano Rao, DDate:Aug 2007In this paper, the authors report the statistical characteristics of Stratospheric Sudden Warming (SSW) events observed over a low latitude station, Gadanki; 13.5°N, 79.2°E. The study uses 7 years (1998 to 2004) of quasi-continuous nighttime ...Read more
Author:Sivakumar, V; Bencherif, H; Acharyulu, DV; Hauchecorne, A; Rao, DN; Sharma, S; Rao, PBDate:Jul 2006First observation of the Stratospheric Sudden Warming (SSW) was made by Scherhag in 1952, using radiosonde measurements over Berlin. Schoeberl (1978) provided a review on theory and observations of stratospheric warming using results reported ...Read more