Author:Helbig, M; Engelbrecht, APDate:Jun 2013Dynamic multi-objective optimisation problems (DMOOPs) have more than one objective, with at least one objective changing over time. Since at least two of the objectives are normally in conflict with one another, a single solution does not ...Read more
Author:Henrico, SJ; Coetzee, S; Cooper, Antony KDate:2018Remaining ahead of the enemy in all circumstances is crucial to any military power. Geographic information systems (GIS) can provide the military commander with geospatial information about the theatre of war to assist with the planning and ...Read more
Author:Oosthuizen, Rudolph; Pretorius, LDate:Nov 2013Systems Engineering techniques and approaches are applied to design and develop solutions for complex problems. Information and Communication Technology systems can be complex to develop where the impact of new technology is not always ...Read more
Author:Shatalov, MY; Fedotov, I; Wallis, JR; Nicolaides, KEDate:Jan 2006A novel unidimensional model of 1-3 piezocomposite ultrasonic transducers is presented. A new electromechanical model is the generalization of the Smith-Auld unidimentional model, which is formulated in terms of a variational approach. It ...Read more
Author:Olwal, TODate:Sep 2012Research has shown that the capacity of the wireless mesh network improves with the increase of number of radio interfaces per node and the multiplicity of the non-overlapping frequency channels. Recently, such high performance nodes (HPNs) ...Read more
Author:Muronga, Khangwelo; Herselman, Martha E; Botha, Adèle; Da Veiga, ADate:Sep 2019This study aimed to ascertain the types of approaches that are applied in the assessments of information security and cybersecurity user awareness and training programs. The study focused on achieving two objectives. The first objective focused ...Read more
Author:Herselman, PLR; Baker, CJDate:Oct 2007The temporal characteristics of low grazing angle sea clutter and boat reflectivity are considered for both fixed and stepped frequency waveforms under a range of environmental conditions and geometrical configurations. Detectability of boats ...Read more
Author:Coetzee, Louis; Oosthuizen, D; Mkhize, Cyprian BDate:May 2018Internet of Things (IoT) is a concept where the physical world is integrated into the digital world. In IoT, Internet connected devices are able to observe and act. Furthermore, data observations from these devices are linked with cloud based ...Read more
Author:Mlambo, CS; Shabalala, MB; Nelwamondo, Fulufhelo VDate:Jan 2015In this paper, implementations of three Hough Transform based fingerprint alignment algorithms are analyzed with respect to time complexity on Java Card environment. Three algorithms are: Local Match Based Approach (LMBA), Discretized Rotation ...Read more
Author:Botha, Johannes G; Botha-Badenhorst, Danielle P; Leenen, LDate:Mar 2023Blockchain and cryptocurrency adoption has increased significantly since the start of the Covid-19 pandemic. This adoption rate has overtaken the Internet adoption rate in the 90s and early 2000s, but as a result, the instances of crypto scams ...Read more
Author:Mokgalaka, HDate:Oct 2011The accessibility mapping of Early Childhood Development (ECD) facilities within the City of Cape Town is part of a larger accessibility audit and facility planning exercise for a range of community social services undertaken by CSIR for the ...Read more
Author:Ntshabele, K; Isong, B; Dladlu, N; Abu-Mahfouz, Adnan MIDate:Oct 2018One of the challenges faced by Wireless sensor networks (WSNs) is the issue of uncontrollable interference as the spectrum becomes congested due to the current proliferation of wireless devices. Cognitive radio (CR) emerged as one of the ...Read more
Author:Mathebula, I; Isong, B; Gasela, N; Abu-Mahfouz, Adnan MIDate:Nov 2020Software-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
Author:Thwala, Melusi; Mahaye, N; Schaefer, Lisa M; Musee, NDate:Apr 2014In this study, we employed bibliometric techniques to analyse engineered nanomaterials (ENMs) characterization data published in peer-reviewed aquatic nanoecotoxicity hosted in the International Council on Nanotechnology (ICON) and Web of ...Read more
Author:Khuluse, SDate:Apr 2009Risk analysis and decision analysis frameworks provide an array of tools to aid the decision making process. This presentation provides an overview of Probabilistic Risk Analysis (PRA), which involves (i) estimation of probabilities, (ii) ...Read more
Author:Dawood, Zubeida C; Mashiane, TDate:Nov 2014With over a billion active users monthly Facebook is one of the biggest social media sites in the world. Facebook encourages friends and people with similar interests to share information such as messages, pictures, videos, website links, and ...Read more
Author:De Villiers, J; Jermy, RDate:Dec 2013This paper presents a comparison of methods to fuse pre-registered colour visual and long wave infra-red images to create a new image containing both visual and thermal cues. Three methods of creating the artificially coloured fused images ...Read more
Author:Molose, RSS; Isong, B; Dladlu, N; Abu-Mahfouz, Adnan MIDate:Dec 2021Energy consumption is a typical challenge that is inherent in wireless sensors networks (WSN). Despite the proposals and the development of several routing protocols and Software-defined WSN (SDWSN) introduction to address the challenge and ...Read more
Author:Melebari, A; Abdul Gaffar, MY; Strydom, JJDate:Oct 2015In modern radar systems with high range resolution, the statistical properties of clutter have a significant effect on the performance of the radar. Analyzing the radar returns from various clutter terrains is essential when aiming to optimize ...Read more
Author:Masonta, Moshe T; Mekuria, Fisseha; Mzyece, MDate:Sep 2013Television white spaces (TVWS) are unused portion of TV spectrum as a result of analogue TV coverage planning and the migration to digital terrestrial TV (DTT). As a member of the International Telecommunications (ITU) Region 1, South African ...Read more