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LaBO3 (B¼ Fe, Co) nanofibers and their structural, luminescence and gas sensing characteristics

Author: Shingange, Katekani ; Swart, HC ; Mhlongo, Gugu H Date: Feb 2020 Perovskite based oxides provide various compositional combinations between different oxides for tuning gas sensing performances. Herein, we present lanthanum based perovskites (LaFeO3 and LaCoO3) nanofibers (NFs) synthesized through the ... Read more
Microwave irradiation-assisted synthesis of zeolites from coal fly ash: An optimization study for a sustainable and efficient production process

Author: Makgabutlane, B ; Nthunya, LN ; Nxumalo, EN ; Musyoka, Nicholas M ; Mhlanga, SD Date: Sep 2020 Class F South African coal fly ash was used as a precursor for the synthesis of zeolite A via complete microwave irradiation. To attain optimal conditions for the synthesis of zeolite A with minimum impurities, the microwave synthesis time, ... 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
3D evaluation of fine-scale normalised DSMs in urban settings

Author: Breytenbach, Andre Date: Sep 2020 Humankind often needs to accurately model, identify and spatially quantify aboveground phenomena on the Earth’s surface for informed decision-making. Height data derived from digital elevation models (DEMs) is often used to achieve this. This ... Read more
Characterizing light-absorbing aerosols in a low-income settlement in South Africa

Author: Xulu, NA ; Piketh, SJ ; Feig, GT ; Lack, DA ; Garland, Rebecca M Date: Aug 2020 Light-absorbing aerosols, particularly black carbon (BC), have significant impacts on human health and the climate. They are also the least-studied fraction of atmospheric particles, particularly in residential areas of southern Africa. The ... Read more
Water and CSP—Linking CSP water demand models and national hydrology data to sustainably manage CSP development and water resources in arid regions

Author: Duvenhage, F ; Brent, AC ; Stafford, William HL ; Grobbelaar, S Date: Apr 2020 A systematic approach to evaluate Concentrating Solar Power (CSP) plant fleet deployment and sustainable water resource use in arid regions is presented. An overview is given of previous work carried out. Once CSP development scenarios, ... Read more
An overview of the recent advances in polylactide-based sustainable nanocomposites

Author: Banerjee, R ; Ray, Suprakas S Date: Jan 2021 The article reports recent advances in reference to the existing literature and presents a knowledge gap and potential solution ideas for polylactide (PLA) nanocomposites as sustainable materials. Various types of nanoparticles have been used ... Read more
Complex Coastal Systems: Transdisciplinary Learning on International Case Studies

Author: Slinger, J ; Taljaard, Susan ; D'Hont, F Date: Feb 2020 The transdisciplinary research synthesised in this book represents an endeavour by a group of coastal researchers and policy analysts to learn from a cross-comparison of seven international case studies on tidal inlet or estuary mouth management ... Read more
Spatial Entity Classification Standard (SpECS): A Proposed Standard for South Africa

Author: Cooper, Antony K ; Zietsman, HL Date: Dec 1999 This paper describes the Spatial Entity Classification Standard (SpECS), which has been proposed as a standard for classifying digital geographical data in South Africa, for use in Geographical Information Systems (GIS). The paper begins with ... Read more
A survey of standards for the exchange of digital geo-referenced information

Author: Cooper, Antony K Date: 1988 A number of countries and international organizations are developing standards for the exchange of digital geographically referenced information. This paper provides a survey of some of these standards and highlights the problems associated ... Read more
Pseudocapacitive material for energy storage application: PEDOT and PEDOT:PSS

Author: Adekoya, Gholahan J ; Sadiku, RE ; Hamam, Y ; Ray, Suprakas S ; Mwakikunga, Bonex W ; Folorunso, O ; Adekoya, OC ; Lolu, OJ ; Biotidara, OF Date: Nov 2020 The total volume of solar energy reaching the earth in every second is equivalent to the total energy usage by the entire human race for three days. With this vast amount of clean energy freely available to humanity, there is still heavy ... 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
Optical coherence tomography latent fingerprint image denoising

Author: Mgaga, Sboniso S ; Tapamo, JR Date: Dec 2020 Latent fingerprints are fingerprint impressions left on the surfaces a finger comes into contact with. They are found in almost every crime scene. Conventionally, latent fingerprints have been obtained using chemicals or physical methods, ... Read more
Performance evaluation of polypyrrole-montmorillonite clay composite as a re-usable adsorbent for Cr(VII) remediation

Author: Mdlalose, Lindani M ; Balogun, Mohammed O ; Setshedi, Katlego Z ; Chimuka, L ; Chetty, Avashnee Date: Aug 2020 A flexible composite adsorbent combination of polypyrrole and montmorillonite clay (PPy-MMT) has been prepared by in situ oxidative polymerization method. This well-achieved adsorbent has amphoteric characteristics and has been explored in ... 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

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