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Browsing Conference Publications by Publication Type "Conference Presentation"

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10-year statistical study of double stratopause structure as observed by lidar over a southern sub-tropical site, Reunion Island (21°S, 55°E)

Author: Sivakumar, V ; Faduilhe, D ; Bencherif, H Date: Jul 2006 The lidar data collected for about 10 year’s period from 1994 to 2004 are used for the present study. The recorded raw data is in the form of photon count profiles with a height resolution of 300 m and time resolution of 120s. The method of ... Read more
1st review of the status of national air quality: 1994-2004

Author: Taviv, I ; Zunckel, M ; Mahema, T ; John, Juanette ; Naidoo, Mogesh Date: Oct 2006 Need for informed decision making, history of fragmented and un-coordinated monitoring, framework for NAQIS-SAAQIS (output of NAQMPII) and metadata collection (output of NAQMPII). Read more
2 DOF resolution adjustment laser position sensor

Author: Shaik, A ; Tlale, NS ; Bright, G Date: Dec 2008 A low cost sensor system is envisaged that has 2 distinct routes for resolution enhancement in position detection. The main area for application of the sensor design would be in the food processing and packaging industry where position ... Read more
The 2011 municipal elections in South Africa and new trends since the 2009 national elections

Author: Greben, JM ; Elphinstone, CD ; Holloway, Jennifer P Date: Sep 2011 The CSIR has been involved in South African election night predictions since 1999 using a cluster prediction model based on the segmentation of the electorate according to voting behavior. In this paper these clusters are exploited in another ... Read more
25m2 target-aligned heliostat with closed-loop control

Author: Roos, TH ; Zwane, NX ; Kruger, E ; Perumal, S ; Cathro, R Date: Sep 2007 A 252m target-aligned research heliostat with closed-loop control, with a theoretical concentration of 80 suns, has been built at CSIR in South Africa. The heliostat has four degrees of freedom: Azimuth, Elevation, Rotation and Pitch. A control ... Read more
2D Methods for pose invariant face recognition

Author: Mokoena, Ntabiseng ; Djonon Tsague, Hippolyte ; Helberg, A Date: Dec 2016 The ability to recognise face images under random pose is a task that is done effortlessly by human beings. However, for a computer system, recognising face images under varying poses still remains an open research area. Face recognition ... Read more
3D mapping and photogrammetry sensor payload for unmanned aerial vehicles

Author: Purdon, Kyla ; Van Niekerk, T ; Phillips, R ; Marais, Stephen T Date: Nov 2023 Unmanned Aerial Vehicles (UAVs) have shown great potential for data collection and monitoring of areas. Sensors such as LiDARs and cameras can be used on UAVs for high-resolution data collection and used for various applications like Digital ... Read more
A 3D potential field model of the Pilanesberg Complex shape and structure

Author: Lee, SA ; Webb, SJ ; Jones, MQW ; Durrheim, RJ ; Ganerød, M Date: Oct 2013 The Mesoproterozoic Pilanesberg Complex, South Africa, is the world’s largest alkaline intrusion. While surface field relationships suggest an inward dipping structure, it is unclear how these dips extend to depth. The 3D geometry of the ... Read more
3D primary grain shapes resulting from semi-solid metal processing

Author: Curle, Ulyate A Date: Jul 2017 The issue regarding globular grain shape and size has been a topic for semi-solid processing since the discovery of the technique. Semi-solid rheo-processing takes advantage of cooling a liquid metal alloy to the solid + liquid phase field, ... Read more
3D Tyre/Road pavement contact stress measurements

Author: De Beer, Morris Date: Oct 2010 The CSIR’s proprietary Stress-in-Motion (SIM) measurements provide rational descriptions of 1D, 2D and 3D tyre/road pavement stresses for: Road pavement design testing and evaluation, as well as tyre design, testing and evaluation. Read more
3D visual analysis tool in support of the SANDF's growing ground based air defence simulation capability

Author: Duvenhage, B ; Delport, JP ; Louis, A Date: Oct 2007 A 3D visual analysis tool has been developed to add value to the SANDF's growing Ground Based Air Defence (GBAD) System of Systems simulation capability. A time based XML interface between the simulation and analysis tool, via a TCP connection ... Read more
3D, parallel fluid-structure interaction code

Author: Oxtoby, Oliver F ; Malan, AG Date: Jan 2011 The authors describe the development of a 3D parallel Fluid–Structure–Interaction (FSI) solver and its application to benchmark problems. Fluid and solid domains are discretised using and edge-based finite-volume scheme for efficient parallel ... Read more
4-RRS PKM for stabilisation on a mobile sensor platform

Author: Ramruthan, Kshir ; Kuchwa-Dube, C Date: Nov 2023 Disturbances experienced by an inspection robot can reduce the quality of its sensor measurements, which can in turn negatively affect the robot’s functionality. This research aimed to design a Parallel Kinematic Mechanism (PKM) for use as ... Read more
4G RAN infrastructure sharing by 5G virtualized mobile network operators: A tutorial

Author: Mamushiane, Lusani ; Mboweni, Lawrence S ; Kobo, Hlabishi ; Mudumbe, Mduduzi J ; Mwangama, J ; Lysko, Albert A Date: Sep 2021 Active radio access network (RAN) infrastructure sharing has emerged as a promising solution for efficient spectrum utilization, capital and operational cost savings, improved MVNO penetration rates and lower broadband retail prices in both ... Read more
5G network slice resource overbooking: An opportunity for telcos to boost their revenue

Author: Mamushiane, Lusani ; Mwangama, J ; Lysko, Albert A ; Kobo, Hlabishi I Date: Aug 2022 The global impact of COVID-19 has been unprecedented, with over-the-top (OTT) services consumption growing at a staggering rate. While OTT does consume revenue-generating data, OTT services are gradually substituting the traditional primary ... Read more
84th IMESA Conference in collaboration with IAWEES (International), Virtual conference, Cape Town, 17 - 19 November 2021

Author: Steyn, Maronel ; Walters, Chavon R Date: Nov 2021 Water scarcity, increased pollution, unprecedented population growth and climate change are collectively driving the need to reuse water with the aim to enhance water security, sustainability, and resilience. It is clear that South Africa¿s ... Read more
85 dBA: is it protective enough to prevent hearing loss in South African miners?

Author: Edwards, A Date: Sep 2009 The Occupational Exposure Limit (OEL) for noise is legislated to be 85 dBA. However, owing to the energy of different frequencies the effect on the ear by sounds of different frequencies is known to vary. Also, there is recent evidence of the ... Read more
ABox abduction in ALC using a DL tableau

Author: Halland, K ; Britz, K Date: Oct 2012 The formal definition of abduction asks what needs to be added to a knowledge base to enable an observation to be entailed by the knowledge base. ABox abduction in description logics (DLs) asks what ABox statements need to be added to a DL ... Read more
Abundance estimation of spectrally similar minerals

Author: Debba, Pravesh Date: Jul 2009 This paper evaluates a spectral unmixing method for estimating the partial abundance of spectrally similar minerals in complex mixtures. The method requires formulation of a linear function of individual spectra of individual minerals. The ... Read more
Academic and skills credentialing using distributed ledger technology (DLT) and W3C Standards: Technology assessment

Author: Mthethwa, Sthembile ; Pretorius, Morne Date: Dec 2022 The ongoing push for the 4th industrial revolution is setting the stage to digitise, persist and verify identity along with credentials. Academic and skills credentials are currently verified manually and have much scope for automation using ... Read more

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