• Statistics of utility-scale power generation in South Africa in 2020

  

  Author: Calitz, Joanne R ; Wright, Jarrad G Date: Feb 2021 This presentation provides statistics on utility-scale power generation in South Africa in 2020. Coal still dominates the South African energy mix whilst variable renewables surpassed nuclear energy contribution in 2020 by some margin. System ... Read more
• Urban Transitions Conference: Towards a Better Urban Future in an Interconnected Age, 5-9 September 2016, Shanghai, China

  

  Author: Gibberd, J Date: Sep 2016 Existing city planning and implementation processes are ‘tried and tested’ and have proven to be a successful means of planning and implementing large-scale infrastructure projects in cities. However an increasing interest in developing more ... Read more
• Microbiology of the Built Environment (MoBE) for architects, a review of applied spatial metrics for application in healthy building design

  

  Author: Nice, Jako A Date: Jul 2020 Humans spend up to 90% of their time in indoor built environments. There is recognition and academic consensus that architectural design impacts both the sources of the microbial communities, (via activity and mix of occupancy), and the ... Read more
• The effects of image smoothing on CNN-based detectors

  

  Author: Skosana, Vusi J ; Ngxande, M Date: Jan 2020 Edge-preserving smoothing filters have been shown to improve generalisation performance on the HOG features with a SVM classifier. However, not all smoothing filters and parameters lead to better performance. The effects of smoothing filters ... Read more
• A survey of LoRaWAN adaptive data rate algorithms for possible optimization

  

  Author: Lehong, C ; Isong, B ; Lugayizi, F ; Abu-Mahfouz, Adnan MI Date: Nov 2020 The Adaptive Data Rate (ADR) is used in LoRaWAN to ensure optimized data rates and transmission powers for static end devices. However, its implementation is still new, and therefore, its functionalities are limited. Multiple proposals have ... Read more
• Analysis of energy-efficient techniques for SDWSN energy usage optimization

  

  Author: Mathebula, I ; Isong, B ; Gasela, N ; Abu-Mahfouz, Adnan MI Date: Nov 2020 Software-Defined Wireless Sensor Networks (SDWSN) has received significant attention in recent years due to its inherent challenges such as network security, trust management, inefficient energy consumption, and so on. In particular, inefficient ... Read more
• Solving MKP applied to IoT in smart grid using meta-heuristics algorithms: A parallel processing perspective

  

  Author: Albertyn, J ; Cheng, L ; Abu-Mahfouz, Adnan MI Date: Nov 2020 Increasing electricity prices in South Africa and the imminent threat of load shedding due to the overloaded power grid has led to a need for Demand Side Management (DSM) devices like smart grids. For smart grids to perform to their peak, ... Read more
• Morphology, thermal, and thermomechanical properties of cellulose nanocrystals reinforced polyactide/poly[(butylene succinate)-co-adipate] blend composite foams

  

  Author: Motloung, Mpho P ; Zungu, Simphiwe ; Ojijo, Vincent O ; Bandyopadhyay, Jayita ; Ray, Suprakas S Date: Oct 2020 This study examines the influence of cellulose nanocrystal (CN) particles on the morphological, thermal, and thermo-mechanical properties of polylactide (PLA)/poly [(butylene succinate)-co-adipate] (PBSA) blend foams prepared by casting and ... Read more
• Nanomedicines for the treatment of infectious diseases: Formulation, delivery and commercialization aspects

  

  Author: Dube, A ; Semete-Makokotlela, Boitumelo ; Ramalapa, Bathabile E ; Reynolds, J ; Boury, F Date: Mar 2021 The increasing prevalence of drug resistant pathogenic strains, including multi drug resistant TB along with the growing HIV and malaria resistance demand new routes of innovation for pharmaceutical drug discovery. Nanomedicine provides the ... Read more
• Active nanocomposite films based on low density polyethylene/organically modified layered bouble hydroxides/thyme oil to retain retail shelf life and quality of hass avocados

  

  Author: Kesavan Pillai, Sreejarani ; Sivakumar, D ; Ray, Suprakas S ; Obianom, P ; Eggers, Sharon K ; Mhlabeni, T Date: Dec 2020 In this study, the ability of an active film containing volatile bioactives in post-harvest disease control and preservation of quality in avocados is explored as a non-traditional treatment method. Antimicrobial transparent flexible trilayer ... Read more
• Circular interpolation techniques towards accurate segmentation of iris biometric images for infants (conference paper)

  

  Author: Nelufule, Nthatheni ; Mabuza-Hocquet, Gugulethu P ; De Kock, Antonie J Date: Jan 2020 In most biometric modalities, recognition and authentication methods for adults have already been fully designed, developed and commercially available. However, for infants and children who are the most vulnerable population to abduction, ... Read more
• OTA firmware updates for LoRaWAN using blockchain

  

  Author: Mtetwa, SN ; Sibeko, N ; Tarwireyi, P ; Abu-Mahfouz, Adnan MI Date: Nov 2020 LoRaWAN is one of the LPWAN technologies that has become popular in both industries and research. LoRaWAN aims to provide long-range communication and empowers lowpowered devices to last for years in the field. LoRaWAN relies on the symmetric ... Read more
• Understanding the influence of manufacturing and material parameters on the mechanical properties of polymerclay composites: An exploratory statistical analysis

  

  Author: Botha, Natasha ; Coetzer, R ; Inglis, H ; Labuschagne, J Date: Nov 2020 Polymers are used in various industrial applications due to their ease of production, light weight and ductility. Adding fillers, such as clays, improves a range of thermo-mechanical properties, however manufacturing parameters may have an ... Read more
• Advancing mouth management practices in the Groot Brak Estuary, South Africa

  

  Author: Van Niekerk, Lara ; Adams, JB ; Taljaard, Susan ; Huizinga, Piet ; Lamberth, S Date: Feb 2020 The early 1990s in South Africa were characterised by a strongly hierarchical and technocratic regime where planning and development decisions regarding the environment were made at national government level with little or no public consultation ... Read more
• An Estuary Ecosystem Classification that encompasses biogeography and a high diversity of types in support of protection and management

  

  Author: Van Niekerk, Lara ; Adams, JB ; James, NC ; Lamberth, SJ ; MacKay, CF ; Turpie, JK ; Rajkaran, A ; Weerts, Steven P ; Whitfield, AK Date: Mar 2020 For nearly three decades, the Whitfield (1992) characterisation scheme served as a reference framework to type South African estuaries. We outline a revised ecosystem classification scheme that incorporates biogeographical zonation and ... Read more
• Appropriate renewable energy for education infrastructure in rural South Africa: The Cofimvaba science centre model

  

  Author: Nice, Jako A Date: Nov 2020 The Council for Scientific and Industrial Research (CSIR) has embarked on an innovation investigation through a ministerial initiative brought by the Department of Science and Technology Innovation (DSI). The Cofimvaba Science Centre was ... Read more
• Improving spatial domain based image formation through compressed sensing

  

  Author: Stoltz, George G ; Nel, AL Date: Oct 2020 In this paper, we improve image reconstruction in a single-pixel scanning system by selecting an detector optimal field of view. Image reconstruction is based on compressed sensing and image quality is compared to interpolated staring arrays. ... Read more
• Developing an architectural design microbial risk model (ADMRM) for the built environment

  

  Author: Nice, Jako A Date: Oct 2019 Studies indicate that an estimate eighty five percent of our time is spent indoors, with people sited as the main contributor of bacteria, and consequently pathogenic bacteria in indoor environments. This highlights the significance of the ... Read more
• Physico-chemical characterization of polyethylene glycol-conjugated betulinic acid

  

  Author: Mvango, Sindisiwe ; Mthimkhulu, N ; Fru, PA ; Pilcher, LA ; Balogun, Mohammed O Date: Nov 2020 Betulinic acid (BA) is a naturally occurring plant pentacyclic triterpenoid with activity against cancer and infectious diseases like malaria and AIDS. Its pharmacological activity is limited by low aqueous solubility and bioavailability. ... Read more
• The thermal degradation kinetics and morphology of poly(vinyl butyral) cast films prepared using different organic solvents

  

  Author: Motlatle, Abesach M ; Bothloko, Orebotse J ; Scriba, Manfred R ; Ojijo, Vincent ; Ray, Suprakas S Date: Nov 2020 Polyvinyl butyral (PVB) films are highly promising materials as they combine interesting thermal and structural morphology properties and in many cases coating viability. However, the polymerization ability of PVB films through solvent casting ... Read more

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