Leicester, United Kingdom

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Faculty of Health and Life Sciences
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Department of Engineering
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School of Pharmacy
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    ABSTRACT: In dealing with the climate change externality of the fossil-fuel dominated transport sector, bio-fuels are widely seen as a solution. Through its Bioenergy Policy, Ghana seeks to improve oil supply security, save foreign exchange, create jobs and reduce emissions from the transport sector by integrating 20% biofuels into the transport fuel mix by 2030. This paper systematically analyses the transport fuel demand in Ghana to determine the biofuel supply target in 2020 and 2030 and evaluates the resource input requirements for integration of biofuels into the transport fuel mix. It provides a detailed picture of bio-fuel prospects in Ghana in the 2030 horizon. The research concludes that though significant yield improvement is required to meet the target, the target is achievable.
    Renewable and Sustainable Energy Reviews 11/2014; 43. DOI:10.1016/j.rser.2014.10.066
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    ABSTRACT: The tribocorrosion behavior of surface mechanical attrition treated (SMAT) AISI 304 stainless steel by spherical shot peening has been investigated under combined electrochemical and unidirectional sliding conditions in 0.9% NaCl solution. Sliding wear tests of both treated and untreated specimens were conducted under potentiodynamic, open circuit and potentiostatic conditions. It was found that under all test conditions, SMAT was effective in reducing material removal by 2 to 4 times and reducing coefficient of friction against an alumina slider. Detailed analysis showed that SMAT was effective in reducing both mechanical wear and chemical wear during tribocorrosion. The much improved tribocorrosion behavior can be attributed to the surface hardening effect of the surface layer induced by surface mechanical attrition treatment.
    Surface and Coatings Technology 08/2014; 253:284–291. DOI:10.1016/j.surfcoat.2014.05.057
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    ABSTRACT: The aim of this work is to evaluate the application of through-vial impedance spectroscopy in the measurement of eutectic crystallization during the freezing stage of the lyophilisation cycle. Impedance measurements of various sugar solutions (mannitol 5, 10 and 15% w/v, sucrose 5%w/v and mannitol 5% w/v, sucrose 5% w/v solutions) were taken during a freeze-thaw cycle, over a frequency range 10-106 Hz with a scan interval of 1.5 min, using measurement vials with externally attached electrodes connected to a high resolution impedance analyser. Estimates for the electrical resistance of the mannitol solutions record the exothermic crystallization of mannitol at a temperature of -24°C during the temperature ramp down stage of the freezing cycle, which is in close agreement with the off-line DSC measurement of -22 °C. The freezing profile of a 5% mannitol solution with 5% sucrose (a component that does not crystallize in the frozen solution) demonstrated the inhibition of mannitol crystallization (with the implication that the product will then require sub-Tg’ freezing and drying). The works suggests a role for through-vial impedance spectroscopy in the concurrent development of the product formulation and freeze drying cycle without the uncertainty introduced when using off-line date to define the critical process parameters.
    European journal of pharmaceutics and biopharmaceutics: official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V 05/2014; DOI:10.1016/j.ejpb.2014.05.005


  • Address
    The Gateway, LE1 9BH, Leicester, United Kingdom
  • Head of Institution
    Vice-Chancellor Professor Dominic Shellard
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  • Phone
    +44 (0)116 2 50 60 70
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Top publications last week by downloads

Journal of Clinical Nursing 04/2004; 13(3a):45-53. DOI:10.1111/j.1365-2702.2004.00926.x
Annual Review of Energy and the Environment 11/2001; 26:303-29. DOI:10.1146/annurev.energy.26.1.303

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