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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
The 2020 WMO symposium on climatological, meteorological and environmental factors in the COVID-19 pandemic: A special issue from symposium presentations

Author: Sweijd, Neville ; Zaitchik, BF Date: Jun 2021 The COVID-19 pandemic has become one of the great historical events of the modern era, presenting a generational challenge to the world. Questions about the role of weather on SARS-CoV-2 transmission led to the gathering of scientists at an ... 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
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
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
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
Accelerated approach of discovering plant derived drug leads for treatment of TB

Author: Naidoo, Dashnie ; Maharaj, VJ ; Moodley, N ; Sewnarain, P ; Ndlebe, VJ Date: Jun 2010 The research conducted by the Bioprospecting group to identify TB drug leads using the accelerated approach will be outlined. The Bioprospecting platform in collaboration with the South African National Botanical Institute (SANBI) has established ... Read more
Accelerated approach of discovering plant-derived drug leads for treatment of tuberculosis

Author: Naidoo, Dashnie ; Maharaj, V ; Steenkamp, P Date: 01 Sep 2010 The bioprospecting research group at CSIR biosciences undertakes research that taps into South Africa’s plant biodiversity with the aim of discovering natural products that can be used to develop new medicines effective against tuberculosis ... Read more
Accelerated design of a conformal strongly coupled magnetic resonance wireless power transfer

Author: Molefi, M ; Markus, ED ; Abu-Mahfouz, Adnan MI Date: Nov 2021 A Conformal Strongly Coupled Magnetic Resonance (CSCMR) wireless power transfer (WPT) system is a small footprint technology suitable for applications such as small low power sensors and implantable medical devices. These applications require ... Read more

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