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Botswana International University of Science and Technology: Recent submissions

  • Detection of diamonds using the tagged neutron method 
    Sebele, Motswakae (Botswana International University of Science and Technology (BIUST), 2022-01)
    Current technologies for the detection and extraction of diamonds involve the repeti tive mechanical crushing of kimberlite ore, resulting in the damage of real diamonds. In particular, the breakage of large diamonds into ...
  • Temperature dependent electrical and gas sensing properties of ce/cuo nanostructures 
    Bosigo, Romang (Botswana International University of Science and Technology (BIUST), 2022-03-04)
    Research on semiconducting metal oxide (MO) nanostructures is a fascinating field that has received massive interest due to their significant physical and chemical properties which can be useful in the development of ...
  • Investigation of cu2znsns4 (caus) nanostructured material system for energy conversion 
    Kefositse, Mompoloki (Botswana International University of Science and Technology (BIUST), 2022-03)
    Photovoltaic technology is a very crucial technology and it is gradually growing worldwide as there is plenty of sunshine daily especially in African countries. The aim of photovoltaic technology is to generate electricity ...
  • A surface photovoltage study of surface defects on Co-doped TiO2 thin films deposited by spray pyrolysis 
    Wafula, Henry; Juma, Albert; Sakwa, Thomas; Musembi, Robinson; Simiyu, Justus (2016-07-22)
    Surface photovoltage (SPV) spectroscopy is a powerful tool for studying electronic defects on semiconductor surfaces, at interfaces, and in bulk for a wide range of materials. Undoped and Cobalt-doped TiO 2 (CTO) thin films ...
  • Assessment of underground mine production efficiency at Morupule coal mine 
    Mosiamisi, Otsweletse (Botswana International University of Science and Technology (BIUST), 2021-06)
    Mining productivity is a measure of the effectiveness of mining resource inputs computed as a ratio of production output per input resources. Factors affecting productivity can be grouped as a combination of technical ...
  • Fall of ground characterization and its implications for ground control at BCL mine 
    Phumaphi, Pako Tumelo (Botswana International University of Science and Technology (BIUST), 2018-07)
    Mining at great depth is associated with many principal stability and ground control problems. One of the challenges currently facing underground mines is changes in ground conditions leading to the fall of ground (FoG) ...
  • Design, modelling, and simulation of a vision based automatic gold panning system 
    Makoni, Blessing Chipfurwe (Botswana International University of Science and Technology (BIUST), 2021-07)
    To do away with the hazardous, tedious, repetitive, and export-dependent gold panning procedure currently practiced by artisanal and small-scale miners in developing countries an automated system for the gold panning ...
  • Prediction of fuel consumption of haulage trucks in open pit mines 
    Tadubana, Gomolemo Kaone (Botswana International University of Science and Technology (BIUST), 2021-03)
    Fuel consumption by haulage trucks is one of the costliest components in open-pit mining. Reducing fuel consumption by trucks could lead to large savings in materials handling costs. This study sought to investigate the ...
  • Burst Control Packet Security in OBS networks 
    David, Mpho (Botswana International University of Science and Technology (BIUST), 2021-06)
    Optical networks gained interest due to the inadequacy of electrical networks to handle the rapid growth of bandwidth requirements, as optical networks have significantly higher transmission rates. To efficiently realize ...
  • Intelligent reflecting surface assisted physical layer security in wireless communication 
    Sanenga, Abraham (Botswana International University of Science and Technology (BIUST), 2021-07)
    The open nature of radio propagation enables ubiquitous wireless communication, which allows seamless data transmission. However, unauthorized users may pose a threat to the security of the data being transmitted leading ...
  • Modeling,simulation and energy management of solar PV-based Microgrinds using real-time residential data 
    Seane, Tumelo Boitshoko (2022-08-18)
    The research aims at defining and analyzing an energy solution that incorporates renewable energy, thereby giving rise to improving energy security and providing grid stability for the grid networks located in urban ...
  • Processing and characterization of a sorghum stem-based fibre polymer composite for building insulation application 
    Moumakwa, Nametso Linda (2021-09-22)
    Agricultural residue-based fibrous (ARF) materials have been identified to be a commercially viable solution for energy-efficient building insulation application. ARFs have various advantages over synthetic fibers including ...
  • Software controlled stepping valve system for a modern car engine 
    Zibani, I; Marumo, R; Chuma, Joseph; Ngebani, I (Elsevier B.V., 2017-10)
    To address the problem of a piston-valve collision associated with poppet valve engines, we replaced the conventional poppet valve with a solenoid operated stepping valve whose motion is perpendicular to that of the piston. ...
  • Chemical absorption of carbon dioxide in Biogas Purification 
    Maile, O.M.; Muzenda, E.; Tesfagiorgis, H. (Elsevier B.V., 2017-01)
    Biogas is produced from anaerobic digestion of organic biodegradable materials. However, its application is limited as it contains impurities such as carbon dioxide (CO2), hydrogen sulphide (H2S), and other trace gases. ...
  • Diffusion in Saturated Clayey Barrier Medium 
    Agbenyeku, E.E.; Muzenda, E.; Msibi, M.I. (Elsevier B.V., 2017)
    The design of clay/clayey barriers for the containment of buried wastes conventionally has been based on the assumption that the hydraulic conductivity controls the rate of leachate percolation. However, recent studies ...
  • Vertical cavity surface emiting laser for optical communication systems 
    Moatlhodi, Ogomoditse Oduetse (Botswana International University of Science and Technology (BIUST), 2022-02-03)
    The minimal cost, high efficiency and low power consumption of the Vertical Cav ity Surface Emitting Laser (VCSEL) gives it an additional advantage when used in applications like fibre optical communication systems to meet ...
  • Design and implementation of a reconfigurable metasurface antenna 
    Ledimo, Bokamoso Kebatho (Botswana International University of Science and Technology (BIUST), 2022-05-30)
    The use of the millimeter wave (mmWave) spectrum and further exploration of sub mmWave has led to a new era in wireless communication, as the need for higher data rates grows. High frequencies, on one hand, incur a higher ...
  • Improvement of cell edge user admission using a user centric approach 
    Jacob, Tshepiso Merapelo (Botswana International University of science and Technology (BIUST), 2022-09-05)
    The increase in the number of linked technological devices, coupled with devices with new multimedia based services has resulted in the growing demand for high data rate communication and a spectrum crisis. Non-orthogonal ...
  • Design and simulation of a phased array antenna for 5G wireless applications 
    Ramogomana, Reuben (Botswana International University of Science and Technology (BIUST), 2022-09-09)
    Amidst escalating data traffic demands, the fifth generation (5G) of mobile communication has been launched to curb these demands by providing high data rates, decreased latency, increased network capacity and large ...
  • Mineral weathering, pedogenesis and characterization of expansive soils from Serowe, Central Botswana 
    Nkonga, Itumeleng. (Botswana International University of Science and Technology (BIUST), 2022-08)
    Expansive soils tend to be fairly high in natural fertility and their unique morphology makes them quite interesting. Soils found in Serowe, Central Botswana, commonly exhibit variable degrees of periodic shrinking and ...

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