Recent Submissions

  • The Anomalous Low State of the X-ray Binary System Hercules X-1 

    Jurua, Edward (Doctoral dissertation, University of the Free State, 2008-08)
    The light curve of Hercules X-1 (Her X-1) shows a peculiar 35-day modulation of the X-ray flux cycling between low and high states. The 35-day modulation is believed to result from the occultation of the neutron star by a ...
  • Briquetting and Torrefaction of Agricultural Residues for Energy Production 

    Ok, David Kilama (Newcastle University, 2019-06)
    Agricultural residues are a potential feedstock for renewable energy because they are abundant and CO2 neutral. Due to their low energy density and heterogeneity, there are key challenges in handling, storage, transportation ...