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Now showing items 41-60 of 561

Recent advances of high entropy alloys: High entropy superalloys

Author: Dada, M ; Popoola, P ; Adeosun, S ; Pityana, Sisa L ; Mathe, Ntombizodwa R ; Aramide, O ; Malatji, N ; Lengopeng, T ; Ayodeji, A Date: Sep 2021 This study reviews the recent technological advancements in manufacturing technique; laser surface modification and material; High Entropy Superalloys. High Entropy Superalloys are current potential alternatives to nickel superalloys for gas ... Read more
The use of plastic waste in road construction

Author: Mturi, George AJ ; O’Connell, Johan S ; Akhalwaya, Imraan ; Ojijo, Vincent O ; Mofokeng, Tladi G ; Ncolosi, Nonzwakazi ; Smit, Michelle A Date: Dec 2021 Recycled plastics are being investigated worldwide not only as a green investment, but also for improved pavement durability (Milad et al., 2020). The objectives of the study were to screen, evaluate and implement existing international ... 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, SS ; Obianom, P ; Eggers, SK ; Mhlabeni, T Date: Nov 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
Building a cyber smart community

Author: Dlamini, ZI ; Phahlamohlaka, Letlibe J Date: Sep 2021 This chapter shares some methods that could be employed in order to construct and deploy a local cyber smart community in a developing economy, where the notion of smart communities seems to be fitting and significant compared to that of smart ... Read more
A research-anchored e-entrepreneurship empowerment approach to building a smart community

Author: Phahlamohlaka, Letlibe J ; De Villiers, C Date: Sep 2021 From its inception just over three decades ago, the Siyabuswa Educational Improvement and Development Trust (SEIDET) believed that to achieve its goals, it needed to put research and development at the center of its strategic and operational ... Read more
Pathways for mainstreaming resilience thinking into climate change adaptation and planning in the city of Cape Town

Author: Snyman-Van der Walt, Luanita ; Schreiner, Gregory O ; Laurie, Suriana ; Audouin, Michelle A ; Lochner, Paul A ; Marivate, Vukosi N ; Pasquini, L ; Davidson, A ; Hadingham, T ; Cameron, R Date: Oct 2020 Between 2015 and 2017, the City of Cape Town in the Western Cape Province of South Africa experienced three lower than average rainfall years. A changing climate has altered the rainfall patterns in the Western Cape, shifting most of Cape ... Read more
Why a smart community?

Author: Malinga, Andries L ; Phahlamohlaka, Jackie Date: Sep 2021 All over the world, advances in technology have led to many nations into adopting the concept of a smart city in developing their environment. Fewer have considered the smart community notion, yet people all over the world form communities ... Read more
Does non-motorised transport and EV culture reduce carbon footprint?

Author: Sediki, Vhonani P Date: Jul 2021 This review aims to answer the question whether Non-Motorised Transport and electric vehicle cultures help reduce carbon footprint related to commuting and whether the provision of infrastructure encourage the culture of walking, running, ... Read more
SynBac: Enhanced baculovirus genomes by iterative recombineering

Author: Crocker, H ; Gorda, B ; Pelosse, M ; Thimiri Govindaraj, Deepak B ; Berger, I Date: May 2021 Baculovirus expression vector systems (BEVS) are widely used to produce heterologous proteins for a wide range of applications. Developed more than 30 years ago, BEVS have been constantly modified to improve product quality and ease-of-use. ... Read more
Drug sensitivity and drug repurposing platform for cancer precision medicine

Author: Nweke, EE ; Thimiri Govindaraj, Deepak B Date: Feb 2021 One of the critical Global challenges in achieving the UN Sustainable Development Goals 3 Good Health and Well Being is optimizing drug discovery and translational research for unmet medical need in both communicable and non-communicable ... Read more
Exploring functional dynamics of innovation for inclusive development: Event history analysis of an ICT4D project

Author: Maarsingh, B ; Grobbelaar, SS ; Uriona-Maldonado, M ; Herselman, Martha E Date: Aug 2021 Information and Communication Technologies for Development (ICT4D) projects aim to improve the living conditions of marginalized communities. However, ICT4D interventions have high failure rates. We draw on the Technological Innovation for ... Read more
An alternative rainwater harvesting system design methodology

Author: Gibberd, Jeremy T Date: Dec 2020 Climate change and rapid urbanisation have meant there is increasing pressure on water supplies in human settlements in South Africa. This has led to unreliable water supplies and outages. It is therefore important to understand whether there ... Read more
Land use induced land cover changes and future scenarios in extent of Miombo woodland and Dambo ecosystems in the Copperbelt province of Zambia

Author: Malunga, MM ; Cho, Moses A ; Chirwa, PW ; Yerokun, OA Date: Aug 2021 The pattern of Miombo woodland conversion to other land uses and the attendant impacts on vital Miombo ecosystems such as dambos is not well understood. Using the Copperbelt province of Zambia as a case study, we assessed the spatio-temporal ... Read more
Multi-threaded compression of Earth observation time-series data

Author: Swanepoel, Derick ; Van den Bergh, Frans Date: Mar 2017 Earth observation data are typically compressed using general-purpose single-threaded compression algorithms that operate at a fraction of the bandwidth of modern storage and processing systems. We present evidence that recently developed ... Read more
Deferred slanted-edge analysis: A unified approach to Spatial Frequency Response measurement on distorted images and Colour Filter Array subsets

Author: Van den Bergh, Frans Date: Mar 2018 The slanted-edge method of spatial frequency response (SFR) measurement is usually applied to grayscale images under the assumption that any distortion of the expected straight edge is negligible. By decoupling the edge orientation and position ... Read more
Robust edge spread function construction methods to counter poor sample spacing uniformity in the slanted-edge method

Author: Van den Bergh, Frans Date: Jun 2019 The slanted-edge method describes an algorithm for measuring the spatial frequency response (SFR) of digital imaging systems. The method can be applied to edges oriented at nearly any angle, but there are some angles that cause simplistic ... Read more
A solar PV procurement method for self-consumption: Lessons learned from a commercial installation at the CSIR…

Author: Pratt, Lawrence E ; Ayanna, Manjunath Basappa ; Wright, Jarrad G ; Fourie, Ruan Date: Jul 2021 The Council for Scientific and Industrial Research (CSIR), an entity of the Department of Science and Innovation, is a national scientific council with headquarters in Pretoria, South Africa. The CSIR Pretoria campus owns and operates 2 MW ... Read more
Residual stress in laser powder bed fusion

Author: Mugwagwa, L ; Yadroitsava, I ; Makoana, Nkutwane W ; Yadroitsev, I Date: May 2021 Laser powder bed fusion (L-PBF) has great prospects for biomedical, automotive, aerospace and other high-tech industry sectors due to its manufacturing flexibility and design freedom. However, several factors that include high residual stresses, ... Read more
Overview of developing countries

Author: Coelho, ST ; Recalde, MY ; Mani, SK ; Stafford, William HL Date: Jan 2020 This chapter presents a general overview of each region where the selected developing countries (Latin America, Africa, and Asia) are located. It includes socioeconomic figures, such as energy access, share of urban and rural population, and ... Read more
Chapter One - Introduction

Author: Coelho, ST ; Bouille, DH ; Mani, SK ; Stafford, William HL Date: Jan 2020 The adequate collection and disposal of municipal solid waste (MSW) remain a challenge in developing countries as a direct consequence of inadequate practices, which in turn produce negative environmental and social impacts. In industrialized ... Read more

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