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Faculty of Engineering & Technology: Recent submissions

  • Prediction of genes that function in methanogenesis and CO2 pathways in extremophiles 
    Tilahun, Lulit; Asrat, Asfawossen; Wessel, Gary M.; Simachew, Addis (MDPI, 2021-10-24)
    Gaet’ale (GAL) and Mud’ara (MUP) are two hypersaline ponds located in the Danakil Depression recharged by underground water from the surrounding highlands. These two ponds have different pH, salinity, and show variation ...
  • Fuzzy model-based reconstruction of paleovegetation in Ethiopia 
    von Reumont, Frederik; Schäbitz, Frank; Asrat, Asfawossen (Informa UK Limited, trading as Taylor & Francis Group, 2022-05-31)
    We introduce a new method to compute plant distribution in Ethiopia under paleoclimatic conditions using fuzzy logic. Using a published map of the potential vegetation for Ethiopia we decipher the boundary conditions for ...
  • Orbital controls on eastern African hydroclimate in the Pleistocene 
    Lupien, Rachel L; Russell, James M; Pearson, Emma J; Castañeda, Isla S; Asrat, Asfawossen; Foerster, Verena; Lamb, Henry F; Roberts, Helen M; Schäbitz, Frank; Trauth, Martin H; Beck, Catherine C; Feibel, Craig S; Cohen, Andrew S (Springer Nature Limited, 2022-02-24)
    Understanding eastern African paleoclimate is critical for contextualizing early human evolution, adaptation, and dispersal, yet Pleistocene climate of this region and its governing mechanisms remain poorly understood due ...
  • Age of the oldest known Homo sapiens from eastern Africa 
    Vidal, Celine M; Lane, Christine S; Asrat, Asfawossen; Barfod, Dan N; Mark, Darren F; Tomlinson, Emma L; Tadesse, Amdemichael Zafu; Yirgu, Gezahegn; Deino, Alan; Hutchison, William; Mounier, Aurélien; Oppenheimer, Clive (Springer Nature Limited, 2022-01-12)
    Efforts to date the oldest modern human fossils in eastern Africa, from Omo-Kibish1,2,3 and Herto4,5 in Ethiopia, have drawn on a variety of chronometric evidence, including 40Ar/39Ar ages of stratigraphically associated ...
  • Hydroclimate changes in eastern Africa over the past 200,000 years may have influenced early human dispersal 
    Schaebitz, Frank; Asrat, Asfawossen; Lamb, Henry F; Cohen, Andrew S; Foerster, Verena; Duesing, Walter; Kaboth-Bahr, Stefanie; Opitz, Stephan; Viehberg, Finn A; Vogelsang, Ralf; Dean, Jonathan; Leng, Melanie J; Junginger, Annett; Ramsey, Christopher Bronk; Chapot, Melissa S; Deino, Alan; Lane, Christine S; Roberts, Helen M; Vidal, Céline; Tiedemann, Ralph; Trauth, Martin H (Springer Nature Limited, 2021-06-14)
    Reconstructions of climatic and environmental conditions can contribute to current debates about the factors that influenced early human dispersal within and beyond Africa. Here we analyse a 200,000-year multi-proxy ...
  • Multiband reconfigurable antennas for 5G wireless and CubeSat applications: a review 
    Ramahatla, Kebonyethebe; Mosalaosi, Modisa; Yahya, Abid; Basutli, Bokamoso (IEEE, 2022-04-21)
    The rapid development of wireless technology has sparked interest in multi-band reconfigurable antennas as devices and satellites are innovating toward miniaturization. With limited space, reliable and efficient high bandwidth ...
  • Meteorological influence on eLoran accuracy 
    Lebekwe, Caspar K.; Zungeru, Adamu Murtala; Astin, Ivan (IEEE, 2021-12-14)
    Stringent accuracy requirements need to be met for eLoran deployment in marine navigation and harbour entrance and approach. A good accuracy model is therefore required to predict the positioning accuracy at the user’s ...
  • Blockchain-based distributive auction for relay-assisted secure communications 
    Khan, Amjad Saeed; Rahulamathavan, Yogachandran; Basutli, Bokamoso; Zheng, Gan; AsSadhan, Basil; Lambotharan, Sangarapillai (IEEE, 2019-08-02)
    Physical layer security (PLS) is considered as a promising technique to prevent information eavesdropping in wireless systems. In this context, cooperative relaying has emerged as a robust solution for achieving PLS due ...
  • Data compression algorithms for wireless sensor networks: a review and comparison 
    Ketshabetswe, Keleadile Lucia; Zungeru, Adamu Murtala; Mtengi, Bokani; Lebekwe, Caspar K.; Prabaharan, S.R.S. (IEEE, 2021-09-29)
    Energy consumption has risen to be a bottleneck in wireless sensor networks. This is caused by the challenges faced by these networks due to their tiny sensor nodes that have limited memory storage, small battery capacity, ...
  • Assessing repeatable accuracy potential of LoRa: a navigation approach 
    Lebekwe, Caspar K.; Kolobe, Lone; Sigweni, Boyce; Zungeru, Adamu Murtala (IEEE, 2022-04-29)
    Two main classes of radio navigation systems are satellite and ground-based systems. Examples of such systems are eLoran deployed as a terrestrial system, and BeiDou, Galileo, GPS and Quasi-Zenith Satellite System (QZSS) ...
  • LoRa network planning and deployment: a terrestrial navigation application 
    Kolobe, Lone; Lebekwe, Caspar K.; Sigweni, Boyce (IEEE, 2021-09-20)
    Long Range (LoRa) is a popular low power wide area network (LPWAN) technology which operates in the Industrial, Scientific and Medical (ISM) frequency band transmitting information over ranges in excess of 20 km and 5 km ...
  • Students’ perceptions of learning experiences from the final-year engineering project 
    Oladiran, Moses Tunde; Uziak, Jacek; Tjiparuro, Zeundjua (World Institute for Engineering and Technology Education (WIETE), 2020)
    The final-year project (FYP), also known as a capstone course, is usually the principal course, where many learning experiences are realised and gained in an undergraduate engineering programme. Therefore, several exit ...
  • Zinc oxide nanowire field effect transistor used as a pH sensor 
    Ditshego, Nonofo M.J. (International Journal of Electrical and Electronic Engineering & Telecommunications, 2022-03)
    An ion sensitive field effect transistor can outperform conventional ion-selective electrodes. Thus, a zinc oxide (ZnO) nanowire field effect transistor (NWFET) pH sensor was fabricated and measured. The sensor contained ...
  • A review on wingtip devices for reducing induced drag on fixed-wing drones 
    Makgantai, Boitumelo; Subaschandar, N.; Jamisola, Rodrigo S. (Science Press, 2021)
    This review paper presents and analyzes previous studies on wingtip devices mainly to reduce induced drag on fixed-wing aircraft and drones. Some of the parameters discussed are the different types of winglets, cant angles, ...
  • Environmental and socioeconomic impact of copper slag—A review 
    Gabasiane, Tlotlo Solomon; Danha, Gwiranai; Mamvura, Tirivaviri Augustine; Mashifana, Tebogo; Dzinomwa, Godfrey (MDPI, 2021-12-03)
    Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron, cobalt, silica, and alumina. ...
  • Determination of optimum slope design for northern boxcut in zone 5 Khoemacau copper mine, Botswana 
    Gaopatwe, Maipelo; Kgopana, Tefo; Verma, Rahul; Molebatsi, Bame (Scientific Research Publishing, 2021-02-22)
    An optimum design of box cuts in soil formations is very crucial in order to obviate the major risk factors originating from the collapse of sidewalls and flooding of excavations during storm rainfall. The present paper ...
  • A comparative study on the comminution behavior of diorite rocks 
    Gaesenngwe, Gaesenngwe; Mamvura, Tirivaviri; Danha, Gwiranai; Sibanda, Vusumuzi (Elsevier Ltd, 2021-11-03)
    In this article factors that affect the comminution behavior of heterogeneous diorite rocks obtained from two quarry locations in Botswana were investigated. Diorite rocks are in great abundance in Botswana and they are ...
  • A formal analytical modeling and simulation of wireless sensor home network 
    Gaboitaolelwe, Jwaone; Zungeru, Adamu Murtala; Chuma, Joseph; Ditshego, Nonofo; Semong, Thabo (The Intelligent Networks and Systems Society, 2020-02-15)
    Technological advances for low-cost Wi-Fi applications such as ‘the wireless sensor network (WSN) deployment’ are at an advanced stage of acceptance, especially in smart home environments. The application of this kind of ...
  • Design and simulation of autonomous anti-rain construction site cover system 
    Molatlhegi, Moses Poloko; Zungeru, Adamu Murtala; Gaboitaolelwe, Jwaone; Lebekwe, Caspar (International Research Publication House, 2020)
    Water distribution systems mostly involve laying of pipes with the digging of trenches to lay down water pipes as a significant activity. During rainy seasons, trenches tend to fill-up with rainwater before the said pipes ...
  • Inter cluster group management in wireless sensor networks 
    Rohini, R.; Zungeru, Adamu Murtala; Ravi, Samikannu; Rao, Dasari Narasimha (Science publications, 2018-04-19)
    Wireless sensor networks (WSNs), an emerging large-scale network system can be embedded for any application. The designers of wireless sensor network have to consider the quality of service agreements from a user perspective. ...

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