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Botswana International University of Science and Technology: Recent submissions

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Multiple transmitters for gain saturated pre-amplified FSO Communication Systems limited by strong atmospheric turbulence and pointing error

Bandele, Jeremiah Oluwatosin; Salau, Ayodeji Olalekan; Mangwala, Mmoloki; Zungeru, Adamu Murtala (IEEE Access, 2023-10-06)

The use of multiple transmitters in a turbulent free-space optical (FSO) communication link can enhance the systems performance because greater received power can improve receiver sensitivity. Nevertheless, the effect of ...
Blue-green water resource availability dynamics in the upper Awash basin, central Ethiopia: implications for agricultural water scarcity assessment

Hirpa, Birtukan Abebe; Adane, Girma Berhe; Roh, Minwoo; Song, Cholho; Nedaw, Dessie; Asrat, Asfawossen; Lee, Woo-Kyun (Informa UK Limited, trading as Taylor & Francis Group, 2023-08)

Quantifying and characterizing the spatial distribution of freshwater availability and water scarcity plays an indispensable role in managing water resources in a basin. This study aimed at quantifying green and blue water ...
Effects of fragmentation on production at Peak mine Midlands, Zimbabwe

Ngoroyemoto, Tapiwa Frank Kwachara; Ashley, Ruvimbo Sabao; Rahul, Verma; Tsidzinye, Tafadzwa; Nyamagudza, Tatenda; Suglo, Raymond (Dr. Jyoti Garg, 2023-08)

Over the years, the cost of production at Peak Mine Midlands, Zimbabwe, has been high due to oversized rock fragments. This led to increased mining costs far above what was planned by the mine. Initial investigations showed ...
Recovering phosphorus as struvite from anaerobic digestate of pig manure with ferrochrome slag as a magnesium source

Moyo, L.B.; Simate, G.S.; Mamvura, T.A.; Danha, Gwiranai (Elsevier Ltd, 2023-04)

The circular economy initiative has driven the agriculture and agro-based industry to beneficiate from waste,thus closing the material loop towards enhancing economic and environmental performance. In this study, the aim ...
Establishment of a hydrometallurgical scheme for the recovery of Copper, Nickel, and Cobalt from Smelter Slag and Its economic evaluation

Godirilwe, Labone Lorraine; Haga, Kazutoshi; Altansukh, Batnasan; Jeon, Sanghee; Danha, Gwiranai; Shibayama, Atsushi (MDPI, Basel, Switzerland, 2023-07)

In pursuit of carbon neutrality, the demand for metals that are necessary for the development of clean energy technologies is rapidly increasing. Metallurgical waste, such as slag, presents a promising secondary source of ...
Geotechnical and geochemical impact assessment of Bamangwato Concessions Limited (BCL) mine waste dumps on Selebi-Phikwe environment, Botswana

Kouadio, Webla Nelly Flora (Botswana International University of Science and Technology (BIUST), 2022-04-21)

Mining activities produce significant amounts of wastes (tailings, slag and waste rock) which, with loss in material strength, could trigger slope instability while the wastes minerals’ chemical reactions also have the ...
Green, blue and economic water productivity: a water footprint perspective from the Upper Awash Basin, Central Ethiopia

Hirpa, Birtukan Abebe; Adane, Girma Berhe; Asrat, Asfawossen; Nedaw, Dessie (IWA Publishing, 2023-02)

The rise in global freshwater consumption, inefficient water use and population growth are the main drivers of water scarcity and food insecurity. This study analyzed the green, blue and economic water productivity (GWP, ...
Projected changes in meteorological drought over East Africa inferred from bias‑adjusted CMIP6 models

Ayugi, Brian; Shilenje, Zablon Weku; Babaousmail, Hassen; Sian, Kenny Lim Kam; Mumo, Richard; Dike, Victor Nnamdi; Iyakaremye, Vedaste; Chehbouni, Abdelghani; Ongoma, Victor (Springer Nature, 2022-04-09)

The ongoing global warming has caused unprecedented changes in the climate system, leading to an increase in the intensity and frequency of weather and climate extremes. This study uses the sixth phase of Coupled Model ...
Impacts of landscape fragmentation on human elephant interaction in the Chobe enclave

Moeng, Lucky Bongani (Botswana International University of Science and Technology (BIUST), 2023)

Change in land use and land cover (LULC) is an area of interest in landscape ecology due to its adverse environmental impacts on wildlife habitats. At local, regional, and global scales, the fragmentation and obstruction ...
Analysis of microseismicity and hazard assesment of the Selibe phikwe cu-ni mine (BCL), Botswana

Hengari, Amogelang (Botswana International University of Science and Technology (BIUST), 2024-02-11)

Seismic Monitoring is a technique that uses vibration monitors in the detection and analysis of dynamic stress waves, generated from failure of rock mass. This technique was applied at the Selibe-Phikwe Cu-Ni mine (BCL) ...
A validated liquid–liquid extraction method for the quantitative analysis of ethanol in the different types of home-brewed alcoholic beverages of Botswana using gas chromatography flame ionization detector

Tsenang, Mmaabo; Pheko, Tshepo; Mokgadi, Janes; Phokedi, Gothatamang Norma (The Tunisian Chemical Society and Springer Nature, 2022-10-25)

Home-made alcohol-related deaths are a significant public health issue which is often overlooked. To date, approxi-mately 30 people have died following the consumption of home brewed alcoholic beverages in Botswana. The ...
Development of a hybrid Fuzzy -TOPSIS MCDA framework for Debswana Jwaneng mine contract mining decision modelling

Munyadzwe, Desmond B. (Botswana International University of Science and Technology (BIUST), 2021-04-21)

Contract mining has been rapidly growing worldwide, in scale, scope and magnitude. The nature and scope of mining outsourcing decision problems have also changed with time leading to the development of different decision ...
Assessment of economic and environmental impact of fines generation at Morupule Mine, Botswana

Saubi, Onalethata (Botswana International University of Science and Technology (BIUST), 2022-02-11)

Coal mining causes various problems such as land subsidence, pollution of water sources, fines generation and air pollution. Mining companies spend a lot of money annually to mitigate the impact of fines generation. This ...
Application of attainable region technique to optimize copper slag’s desired size class

Gabasiane, Tlotlo, Solomon; Danha, Gwiranai; Mamvura, Tirivaviri; Mashifana, Tebogo; Sibanda, Vusumuzi (MDPI, Basel, Switzerland, 2022-12-23)

Copper slag is a hard material produced from smelting copper-bearing ores. Over the years, research has prioritized utilizing slag as a secondary source of base metals. This paper focuses on the grinding/milling of copper ...
Challenges related to beef-cattle pricing between a western block and a third world country

Ziwakaya, Paul Kundai (Botswana International University of Science and Technology (BIUST), 2021-06-06)

This study considers a business scenario involving three participants. The first participant, in this case the farmer sells the cattle to the second participant, in this case the Botswana Meat Commission (BMC) which, in ...
Setswana grammar checker for declarative sentences using LSTM-Recurrent Neural Network

Amon, Kesegofetse (Botswana International University of Science and Technology (BIUST), 2021-11-11)

This research is aimed at developing a Setswana grammar checker for Setswana declarative sentences using Long Short-Term Memory Recurrent neural networks (LSTM-RNNs). The research was motivated by the fact that Setswana ...
Investigation of the efficacy of a ZnO-starch nanocomposite packaging to prolong the shelf life of fragaria ananassa (strawberries)

Chitena, Lorraine (Botswana International University of Science and Technology (BIUST), 2022-03)

Nanomaterials have been used recently in food packaging as antibacterial coatings because of their desirable antibacterial and antifungal properties. The use of antimicrobial packaging is to deter the growth of ...
Investigating the cybersecurity threat landscape for Botswana

Mosimolodi, Sarefo Seth (Botswana International University of Science and Technology (BIUST), 2022-06-24)

Movement restrictions introduced by the coronavirus pandemic have incentivized the rollout of online services globally. Additionally, more employees were telecommuting throughout the pandemic and remote work has become ...
Baobab (adansonia digitata) seed as a source of biodiesel and protein hydrolysates: optimization of production processes and characterization of the products

Masisi, Keletso Gorata (Botswana International University of Science and Technology (BIUST), 2022-03)

Increase in global population places a demand on fuel and protein sources therefore putting a strain on their supply. The demand for fuel products is currently met by increased usage of fossil fuel, a nonrenewable ...
Dung beetles’ responses to changing environments; implications on ecosystem service delivery

Gotcha, Nonofo (Botswana International University of Science and Technology (BIUST), 2022-04)

Dung beetles are coprophagous insects belonging to the families Scarabaeidae and Geotrupidae. They are a very important insects’ group, acting as significant ecosystem engineers through dung burial, decomposition, ...

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Botswana International University of Science and Technology: Recent submissions

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