Welcome to UBRISA, the digital repository that showcases the University of Botswana research!

  • A new method of quantifying aerosol concentrations in atmosphere 

    Rao, Madhava K. S.; Verma, T. S.; Chimidza, S.; John, Shibu K. (Springer Nature Switzerland AG. Part of Springer Nature, https://www.springer.com/journal/703, 2014-04)
    Africa is one of the sources of biomass burning emissions. It is estimated that about 6 million tons of fuel per day is consumed in the southern hemisphere. Biomass burning has an important contribution on aerosol particle ...
  • Analysis of temperature data over semi-arid Botswana: trends and break points 

    Mphale, Kgakgamatso; Adedoyin, Akintayo; Nkoni, Godiraone; Ramaphane, Galebonwe; Wiston, Modise; Chimidza, Oyapo (Springer Nature Switzerland AG. Part of Springer Nature., https://www.springer.com/journal/703, 2018)
    Climate change is a global challenge which impacts negatively on sustainable rural livelihoods, public health and economic development, more especially for communities in Southern Africa. Assessment of indices that signify ...
  • Nondestructive measurement of momentum transfer collision frequency for low temperature combustion plasma 

    Letsholathebe, Douglas; Mphale, Kgakgamatso M.; Chimidza, Samuel (Hindawi Publishing Corporation, https://www.hindawi.com/journals/ijap/, 2014)
    Accurately measured momentum transfer collision frequency and electron density for fire plasma enable correct simulation of electromagnetic wave propagation in the medium. The simulation is essential for designing ...
  • An empirical relation for vegetation fuel flames breakdown electric field strength 

    Maabong, Kago Ernest; Mphale, Kgakgamatso; Letsholathebe, Douglas; Chimidza, Samuel; Thebenyane, Phenyo (Scientific Research Publishing Inc., https://www.scirp.org/journal/jemaa/, 2019)
    The compulsion to provide reliable electric power for sustenance of socio-economic development is vital for most of southern Africa states. The demand for the resource in the region is anticipated to escalate in the next ...
  • Transboundary pollution in the Capital City of Botswana 

    Moloi, K.; Verma, T.S. (Infogain Publication, https://ijeab.com/, 2016-09)
    This paper presents aerosol studies carried out in the capital city of Botswana. The use of backward air mass trajectories has shown that elevated concentrations of fine particles correspond to situations when the air mass ...

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