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Browsing by Cluster "Next Generation Enterprises & Institutions"

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Amplitude quantization method for autonomous threshold estimation in self-reconfigurable cognitive radio systems

Author: Onumanyi, AJ ; Abu-Mahfouz, Adnan MI ; Hancke, G Date: Feb 2021 Self-adaptive threshold adjustment algorithms (SATAs) are required to reconfigure their parameters autonomously (i.e. to achieve self-parameter adjustment) at runtime and during online use for effective signal detection in cognitive radio ... 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
AwezaMed: A multilingual, multimodal speech-to-speech translation application for maternal health care

Author: Marais, Laurette ; Louw, Johannes A ; Badenhorst, Jacob AC ; Calteaux, Karen V ; Wilken, Ilana ; Van Niekerk, Nina ; Stein, Glenn Date: Jul 2020 The language contexts of multilingual developing countries such as South Africa are often characterised by communication challenges resulting from language differences. AwezaMed is a multilingual, multimodal speech-to-speech translation ... Read more
Behavioural intrusion detection in water distribution> systems using neural networks

Author: Ramotsoela, TD ; Hancke, GP ; Abu-Mahfouz, Adnan MI Date: Oct 2020 There has been an increasing number of attacks against critical water system infrastructure in recent years. This is largely due to the fact that these systems are heavily dependent on computer networks meaning that an attacker can use ... Read more
Building upon NB-IoT networks: A roadmap towards 5G new radio networks

Author: Gbadamosi, SA ; Hancke, GP ; Abu-Mhafouz, Adnan MI Date: Oct 2020 Narrowband Internet of Things (NB-IoT) is a type of low-power wide-area (LPWA) technology standardized by the 3 rd - Generation Partnership Project (3GPP) and based on long-term evolution (LTE) functionalities. NB-IoT has attracted significant ... Read more
Category-based multiobjective approach for optimal integration of distributed generation and energy storage systems in distribution networks

Author: Adetunji, KE ; Hofsajer, IW ; Abu-Mahfouz, Adnan MI ; Cheng, L Date: Feb 2021 Distributed generation (DG) units are power generating plants that are very important to the architecture of present power system networks. The primary benefits of the addition of these units are to increase the power supply and improve the ... Read more
Community perspectives as an essential element of resilience thinking: Resilience from a view of inequality

Author: Dlamini, Sifiso B ; Meyer, Isabella A Date: Dec 2020 Resilience is a popular concept in development studies, particularly in research and development on how Information and Communication Technologies (ICTs) can be used to improve livelihoods. As much as the primary focus is on using ICTs to ... Read more
Comprehensive analysis of energy efficiency schemes in the Internet of Things

Author: Mntuwaphi, ND ; Isong, B ; Gasela, N ; Abu-Mahfouz, Adnan MI Date: Nov 2020 Internet of things (IoT) is an innovative technology that has gained significant research attention in recent years and is still gaining momentum. This technology permits communication between humans and objects or objects with objects to ... Read more
Controller placement optimization for Software Defined Wide Area Networks (SDWAN)

Author: Mamushiane, Lusani ; Mwangama, J ; Lysko, Albert A Date: Mar 2021 Software Defined Networking (SDN) has emerged as a promising solution to revolutionize network deployment, operations and economic growth. This paradigm aims to address management and configuration complexities in legacy networks so as to ... Read more
CR-LPWAN: Issues, solutions and research directions

Author: Ntshabele, K ; Isong, B ; Abu-Mahfouz, Adnan MI Date: May 2021 Low Power Wide Area Network (LPWAN) is a network technology that emanated from the swift advancement of the Internet of Things (IoT) market. It is characterized by low cost, long-range communications, low power consumptions, and better area ... Read more
Data integrity: Challenges in health information systems in South Africa

Author: Thulare, Tumiso ; Herselman, Martha E ; Botha, Adele Date: Dec 2020 Poor system use, including inappropriate design of health information systems, causes difficulties in communication with patients and increased time spent by healthcare professionals in recording the necessary health information for medical ... Read more
Defect detection and quantification in electroluminescence images of solar PV modules using U-net semantic segmentation

Author: Pratt, Lawrence E ; Govender, Devashen ; Klein, R Date: Nov 2021 Electroluminescence (EL) images enable defect detection in solar photovoltaic (PV) modules that are otherwise invisible to the naked eye, much the same way an x-ray enables a doctor to detect cracks and fractures in bones. The prevalence of ... Read more
A delegated proof of proximity scheme for industrial internet of things consensus

Author: Ledwaba, LPI ; Hancke, GP ; Mitrokotsa, A ; Isaac, Sherrin J Date: Oct 2020 Recently, work with Distributed Ledger Technologies (DLTs) has focussed on leveraging the decentralised, immutable ledger for use outside of cryptocurrency. One industry poised to benefit from DLTs is the Industrial Internet of Things (IIoT); ... Read more
Determining real-time patterns of lightning strikes from sensor observations

Author: Sibolla, Bolelang H ; Van Zyl, T ; Coetzee, S Date: Nov 2020 Transient spatiotemporal events occur within a short interval of time, in a particular location. If such events occur unexpectedly with varying durations, frequencies, and intensities, they pose a challenge for near-real-time monitoring. ... Read more
Digital forensics supported by machine learning for the detection of online sexual predatory chats

Author: Ngejane, Hombakazi C ; Eloff, JHP ; Sefara, Tshephisho J ; Marivate, VN Date: Mar 2021 Chat-logs are informative digital footprints available on Social Media Platforms (SMPs). With the rise of cybercrimes targeting children, chat-logs can be used to discover and flag harmful behaviour for the attention of law enforcement units. ... Read more
Efficient synthesis of activated carbon (AC) from biomass for catalytic systems: A green and sustainable approach

Author: Timothy, A ; Akande, Amos A ; Odoh, CK ; Philip, M ; Fidelis, TT ; Amos, PI ; Banjoko, OO Date: Apr 2021 Tremendous efforts in developing sustainable processes for integrated production of value-added products/chemicals and fuels in biorefineries increase through delicate designs towards sustainability. This review focuses on the synthesis of ... Read more
Emotional speaker recognition based on machine and deep learning

Author: Sefara, Tshephisho J ; Mokgonyane, TB Date: Nov 2020 Speaker recognition is a method which recognise a speaker from characteristics of a voice. Speaker recognition technologies have been widely used in many domains. Most speaker recognition systems have been trained on normal clean recordings, ... Read more
Exploiting a multilingual semantic Machine translation architecture for knowledge representation of patient information for Covid-19

Author: Marais, Laurette ; Pretorius, L Date: Feb 2021 AwezaMed Covid-19 is a multilingual speech-to-speech translation application for screening patients for Covid-19. It enables Englishspeaking health care providers (HCPs) to conduct screenings by asking questions to patients in all other ... Read more
Familiar household items as program objects

Author: Smith, Andrew C Date: Jul 2021 The English language is but one of many languages globally in use, yet it seems to dominate the world of automation in its application to computer programming. Our research considers a programming environment in which the written word is not ... Read more
From Industry 4.0 to Agriculture 4.0: Current status, enabling technologies, and research challenges

Author: Liu, Y ; Ma, X ; Shu, L ; Hancke, GP ; Abu-Mahfouz, Adnan MI Date: Jun 2020 The three previous industrial revolutions profoundly transformed agriculture industry from indigenous farming to mechanized farming and recent precision agriculture. Industrial farming paradigm greatly improves productivity, but a number of ... Read more

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