Recent Submissions

  • Gas permeation study using ceramic membranes. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Canadian Centre of Science and Education http://dx.doi.org/10.5539/eer.v4n3p43, 2014-07-11)
    A 6000 nm ceramic membrane was repaired with boehmite solution (ALOOH) through the repeat dip-coating technique. The permeance of hydrogen (H2) and carbon dioxide (CO2) were obtained through the membrane in relation to ...
  • Gas permeation behaviour of single and mixed gas components using as asymmetric ceramic membrane. 

    Nwogu, Ngozi Claribelle; Gobina, Edward (World Academy of Science, Engineering and Technology (WASET) http://scholar.waset.org/1999.2/10001725, 2015)
    A dip-coating process has been used to form an asymmetric silica membrane with improved membrane performance and reproducibility. First, we deposited repeatedly silica on top of a commercial alumina membrane support to ...
  • Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores. 

    Sachse, Sophia; Poruri, Manohar; Silva, Francesco; Michalowski, S.; Pielichowski, Krzysztof; Njuguna, James (Sage https://dx.doi.org/10.1177/1099636213512497, 2014-03-31)
    Sandwich panels were fabricated with nanoclay-filled polyurethane foams and glass fiber-reinforced polyamide and polypropylenes face sheets. Nanoclay-filled foam cores, with organophilic montmorillonite loadings of 0–10 wt%, ...
  • Effect of fibre configurations on mechanical properties of flax/tannin composites. 

    Zhu, J.; Njuguna, James; Abhyankar, H.; Zhu, Huijun; Perreux, D.; Thiebaud, F.; Chapelle, D.; Pizzi, A.; Sauget, A.; de Larminat, A.; Nicollin, A. (Elsevier http://dx.doi.org/10.1016/j.indcrop.2013.06.033, 2013-08-02)
    Flax reinforced tannin-based composites have a potential to be used in vehicle applications due to the environmental advantages and good mechanical properties. In this paper, the effects of fibre configuration on mechanical ...
  • An experimental investigation into localised low-velocity impact loading on glass fibre-reinforced polyamide automotive product. 

    Mouti, Zakaria; Westwood, Keith; Long, Darren; Njuguna, James (Elsevier http://dx.doi.org/10.1016/j.compstruct.2013.03.014, 2013-04-03)
    In the automotive industry, more and more engineered parts are shifting from metals to engineering plastics. However localised impact loading and long term ageing effects of under-the-hood plastic components is not well ...
  • An alternative design for electrostatically accelerated ion beam fusion. 

    Macleod, Christopher; Gerrard, Claire E. (British Interplanetary Society http://www.jbis.org.uk/paper.php?p=2015.68.336, 2015-11-01)
    Inertial Electrostatic Confinement (IEC) is an alternative approach to nuclear fusion which uses electrostatically accelerated ions instead of hot plasmas. The best known device that utilises the principle is the ...
  • A prognostic decision model for offshore wind turbines maintenance. 

    Sinha, Yashwant; Steel, John A. (Multi-Science / Sage http://dx.doi.org/10.1260/0309-524X.39.5.569, 2015)
    Frequent unscheduled random maintenance activities have significantly increased the operating cost of Offshore Wind Turbines (OWT). These activities account for ~65% of the overall OWT maintenance costs or 23% of the ...
  • Failure prognostic schemes and database design of a software tool for efficient management of wind turbine maintenance. 

    Sinha, Yashwant; Steel, John A. (Multi-Science / Sage http://dx.doi.org/10.1260/0309-524X.39.4.453, 2015)
    Wind Turbines require numerous and varied types of maintenance activities throughout their lifespan, the frequency of which increases with years in operation. At present the proportion of maintenance cost to the total cost ...
  • A SMART software package for maintenance optimisation of offshore wind turbines. 

    Sinha, Yashwant; Steel, John A.; Andrawus, Jesse A.; Gibson, Karen (Multi-Science / Sage http://dx.doi.org/10.1260/0309-524X.37.6.569, 2013)
    Offshore Wind Turbine (OWT) maintenance costs in between 20 - 35% of the lifetime power generation cost. Many techniques and tools that are being developed to curtail this cost are challenged by the stochastic climatic ...
  • Significance of effective lubrication in mitigating system failures – a wind turbine gearbox case study. 

    Sinha, Yashwant; Steel, John A.; Andrawus, Jesse A.; Gibson, Karen (Multi-Science / Sage http://dx.doi.org/10.1260/0309-524x.38.4.441, 2015)
    The effectiveness of lubrication in machines mainly depends on the physical and chemical properties of lubricating oil, like quantity, level of suspended particles, effect of external load/shear forces, temperature amongst ...
  • A progressive study into offshore wind farm maintenance optimisation using risk based failure analysis. 

    Sinha, Yashwant; Steel, John A. (Elsevier http://dx.doi.org/10.1016/j.rser.2014.10.087, 2015-02)
    Offshore Wind Farm consists of an array of Wind Turbines electrical, communication, command and control systems. At present the cost of maintaining Wind Turbines in the offshore locations is very high (about 35% of lifetime ...
  • Performance analysis of a solar window incorporating a novel rotationally asymmetrical concentrator. 

    Abu-Bakar, Siti Hawa; Muhammad-Sukki, Firdaus; Freier, Daria; Ramirez-Iniguez, Roberto; Mallick, Tapas Kumar; Munir, Abu Bakar; Yasin, Siti Hajar Mohd; Mas’ud, Abdullahi Abubakar; Bani, Nurul Aini (Elsevier http://dx.doi.org/10.1016/j.energy.2016.01.006, 2016-03-15)
    The race towards achieving a sustainable zero carbon building has spurred the introduction of many new technologies, including the BIPV (building integrated photovoltaic) system. To tackle the high capital cost of BIPV ...
  • Path-following analysis of the dynamical response of a piecewise-linear capsule system. 

    Chavez, Joseph Paez; Liu, Yang; Pavlovskaia, Ekaterina; Wiercigroch, Marian (Elsevier http://dx.doi.org/10.1016/j.cnsns.2016.01.009, 2016-08)
    The dynamical response of a piecewise-linear capsule system is studied by means of path-following techniques in this paper. As the capsule model belongs to the class of piecewise-smooth dynamical systems involving impact ...
  • Solvent effects on lasing characteristics for Rh B laser dye. 

    Peter, Jaison; Kumar, Mahesh; Ananad, V. R.; Saleem, Rasool; Sebastian, Ananthu; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Prabhu, Radhakrishna; Kailasnath, M. (Elsevier http://dx.doi.org/10.1016/j.jlumin.2015.09.002, 2016-01)
    We demonstrate pulsed, photopumped multimode laser emission in the visible spectral range from rhodamine B dye dissolved in various solvents. The laser emission is characterized by a well-defined, low threshold pump power ...
  • Application of system dynamics approach in electricity sector modelling: A review. 

    Ahmad, Salman; Tahar, Razman Mat; Muhammad-Sukki, Firdaus; Munir, Abu Bakar; Rahim, Ruzairi Abdul (Elsevier http://dx.doi.org/10.1016/j.rser.2015.11.034, 2016-04)
    Electricity has become a vital source of energy for social and economic development in modern era. Likewise, the issues of its planning and management have grown complex. To address complexity in decision making, researchers ...
  • Optimisation of the performance of a novel rotationally asymmetrical optical concentrator design for building integrated photovoltaic system. 

    Abu-Bakar, Siti Hawa; Muhammad-Sukki, Firdaus; Freier, Daria; Ramirez-Iniguez, Roberto; Mallick, Tapas Kumar; Munir, Abu Bakar; Yasin, Siti Hajar Mohd; Mas’ud, Abdullahi Abubakar; Yunus, Norhidayah Md (Elsevier http://dx.doi.org/10.1016/j.energy.2015.07.133, 2015-10)
    Solar energy is one of the renewable energy sources that has shown promising potential in addressing the world's energy needs, particularly via the solar PV (photovoltaic) technology. However, the high cost of installation ...
  • An assessment of renewable energy readiness in Africa: Case study of Nigeria and Cameroon. 

    Mas’ud, Abdullahi Abubakar; Wirba, Asan Vernyuy; Muhammad-Sukki, Firdaus; Mas’ud, Ibrahim Abubakar; Munir, Abu Bakar; Yunus, Norhidayah Md (Elsevier http://dx.doi.org/10.1016/j.rser.2015.06.045, 2015-11)
    Africa is blessed with abundant energy sources that can promote economic growth and provide sufficient capacity to meet up with the future electricity demand. This paper evaluates the progress made in renewable energy (RE) ...
  • A study of gas diffusion characteristics on a micro porous composite silica ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (Elsevier http://dx.doi.org/10.1016/j.compstruct.2015.07.121, 2015-12-15)
    The purpose of this study is to investigate gas permeation behaviour of five gases (CO2, He, H2, N2 and Ar) across two silica modified ceramic membranes, Membrane Y and Membrane Z. An examination of the variations in their ...
  • Performance analysis of a novel rotationally asymmetrical compound parabolic concentrator. 

    Muhammad-Sukki, Firdaus; Abu-Bakar, Siti Hawa; Freier, Daria; Ramirez-Iniguez, Roberto; Mallick, Tapas Kumar; Munir, Abu Bakar; Yasin, Siti Hajar Mohd; Mas’ud, Abdullahi Abubakar; Yunus, Norhidayah Md (Elsevier http://dx.doi.org/10.1016/j.apenergy.2015.04.122, 2015-09-15)
    The low-concentration photovoltaic (LCPV) system has been identified as one of the potential solutions in lowering the overall installation cost of a building integrated photovoltaic (BIPV) system. This paper evaluates the ...
  • Progress of solar photovoltaic in ASEAN countries: a review. 

    Ismail, Abdul Muhaimin; Ramirez-Iniguez, Roberto; Asif, Muhammad; Munir, Abu Bakar; Muhammad-Sukki, Firdaus (Elsevier. http://dx.doi.org/10.1016/j.rser.2015.04.010, 2015-08)
    The present global energy scenario, in which fossil fuels play a preponderant role, faces significant energy and environmental challenges. To help address these challenges, countries across the world are increasing the ...

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