Recent Submissions

  • A review on the recent progress made on solar photovoltaic in selected countries of Sub-Saharan Africa. 

    Abubakar Mas'ud, A.; Wirba, Asan Vernyuy; Muhammad-Sukki, Firdaus; Albarracin, Ricardo; Munir, Abu Bakar; Bani, Nurul Aini (Elsevier http://dx.doi.org/10.1016/j.rser.2016.04.055, 2016-05-12)
    ABUBAKAR MAS'UD, A., WIRBA, A.V., MUHAMMAD-SUKKI, F., ALBARRACIN, R., MUNIR, A.B. and BANI, N.A. 2016. A review on the recent progress made on solar photovoltaic in selected countries of Sub-Saharan Africa. Renewable and sustainable energy reviews [online], 62, pages 441–452. Available from: http://dx.doi.org/10.1016/j.rser.2016.04.055
    The harmful effects of carbon emissions and carbon dioxide caused by over dependence on oil is a global issue, which is currently being addressed by encouraging renewable energy (RE) resources contribution to the energy ...
  • Development of plasma-sprayed molybdenum carbide-based anode layers with various metal oxides for SOFC. 

    Faisal, Nadimul Haque; Ahmed, R.; Katikaneni, S.P.; Souentie, S.; Goosen, M. F. A. (Springer https://dx.doi.org/10.1007/s11666-015-0315-2, 2015-09-25)
    FAISAL, N.H., AHMED, R., KATIKANENI, S.P., SOUENTIE, S. and GOOSEN, M.F.A. 2015. Development of plasma-sprayed molybdenum carbide-based anode layers with various metal oxides for SOFC. Journal of thermal spray technology [online], 24(8), pages 1415-1428. Available from: https://dx.doi.org/10.1007/s11666-015-0315-2
    Air plasma-sprayed (APS) coatings provide an ability to deposit a range of novel fuel cell materials at competitive costs. This work develops three separate types of composite anodes (Mo-Mo2C/Al2O3, Mo-Mo2C/ZrO2, Mo-Mo2C/TiO2) ...
  • Developing a solar calculator system. 

    Muhammad-Sukki, Saidalmaruzi; Khan, Mohd Toriq Khan Mohd Niyaz; Zeki, Akram M.; Abubakar, Adamu; Muhammad-Sukki, Firdaus (Trans Tech Publications https://dx.doi.org/10.4028/www.scientific.net/AMR.980.179, 2014-06-30)
    MUHAMMAD-SUKKI, S., KHAN, M.T.K.M.N., ZEKI, A.M., ABUBAKAR, A. and MUHAMMAD-SUKKI, F. 2014. Developing a solar calculator system. Advanced materials research [online], 980, pages 179-183. Available from: https://dx.doi.org/10.4028/www.scientific.net/AMR.980.179
    There is a rapid increase in global warming over the years. This follows with continues campaign on reducing the energy consumption and protecting the earth against climate change. The Feed-In Tariff (FiT) program was ...
  • Can a carbon nano-coating resist metallic phase transformation in silicon substrate during nanoimpact? 

    Goel, Saurav; Agrawal, Anupam; Faisal, Nadimul Haque (Elsevier http://dx.doi.org/10.1016/j.wear.2014.03.009, 2014-03-29)
    GOEL, S., AGRAWAL, A. and FAISAL, N.H. 2014. Can a carbon nano-coating resist metallic phase transformation in silicon substrate during nanoimpact? Wear [online], 315(1-2), pages 38-41. Available from: http://dx.doi.org/10.1016/j.wear.2014.03.009
    Nanomechanical response of a silicon specimen coated with a sp3 crystalline carbon coating (1.8 nm thickness) was investigated using MD simulation. A sharp conical rigid tip was impacted at the speed of 50 m/s up to a depth ...
  • Atomistic investigation on the structure–property relationship during thermal spray nanoparticle impact. 

    Goel, Saurav; Faisal, Nadimul Haque; Ratia, Vilma; Agrawal, Anupam; Stukowski, Alexander (Elsevier http://dx.doi.org/10.1016/j.commatsci.2013.12.011, 2013-12-31)
    GOEL, S., FAISAL, N.H., RATIA, V., AGRAWAL, A. and STUKOWSKI, A. 2013. Atomistic investigation on the structure–property relationship during thermal spray nanoparticle impact. Computational materials science [online], 84, pages 163-174. Available from: http://dx.doi.org/10.1016/j.commatsci.2013.12.011
    During thermal spraying, hot particles impact on a colder substrate. This interaction of crystalline copper nanoparticles and copper substrate is modeled, using MD simulation. The quantitative results of the impacts at ...
  • Anti-phase synchronization and symmetry-breaking bifurcation of impulsively coupled oscillators. 

    Jiang, Haibo; Liu, Yang; Zhang, Liping; Yu, Jianjiang (Elsevier http://dx.doi.org/10.1016/j.cnsns.2016.02.033, 2016-03-05)
    JIANG, H., LIU, Y., ZHANG, L. and YU, J. 2016. Anti-phase synchronization and symmetry-breaking bifurcation of impulsively coupled oscillators. Communications in nonlinear science and numerical simulation [online], 39, pp. 199-208. Available from: http://dx.doi.org/10.1016/j.cnsns.2016.02.033
    This paper studies the synchronization in two mechanical oscillators coupled by impacts which can be considered as a class of state-dependent impulsively coupled oscillators. The two identical oscillators are harmonically ...
  • An initial investigation of a nano-composite silica ceramic membrane for hydrogen gas separation and purification. 

    Nwogu, Ngozi Claribelle; Anyanwu, Emmanuel Enyioma; Gobina, Edward (Elsevier http://dx.doi.org/10.1016/j.ijhydene.2015.11.162, 2016-01-27)
    NWOGU, N.C., ANYANWU, E.E. and GOBINA, E. 2016. An initial investigation of a nano-composite silica ceramic membrane for hydrogen gas separation and purification. International journal of hydrogen energy [online], 41(19), pages 8228-8235. Available from: http://dx.doi.org/10.1016/j.ijhydene.2015.11.162
    The effects of trans-membrane pressure difference on hydrogen recovery are investigated on a preliminary basis. The membrane has been developed for high temperature hydrogen separation from CH4, N2, and Ar gas molecules. ...
  • Natural convection flow and heat transfer in an enclosure containing staggered arrangement of blockages. 

    Iyi, Draco; Hasan, Reaz (Elsevier http://dx.doi.org/10.1016/j.proeng.2015.05.033, 2015-06-11)
    IYI, D and HASAN, R. 2015. Natural convection flow and heat transfer in an enclosure containging staggered arragement of blockages. Procedia Engineering [online], 105, pages 176-183. Available from: http://dx.doi.org/10.1016/j.proeng.2015.05.033
    The work reported in this paper is a numerical study of airflow and heat transfer for low turbulence buoyancy-driven flow in a rectangular cavity partially filled with solid objects. The two vertical walls were maintained ...
  • Linearized large signal modeling, analysis, and control design of phase-controlled series-parallel resonant converters using state feedback. 

    Aboushady, Ahmed A.; Ahmed, Khaled H.; Finney, Stephen; Williams, Barry W. (IEEE http://dx.doi.org/10.1109/TPEL.2012.2231700, 2013-01-18)
    ABOUSHADY, A.A., AHMED, K.H. FINNEY, S.J. and WILLIAMS, B.W., 2013. Linearized Large Signal Modeling, Analysis, and Control Design of Phase-Controlled Series-Parallel Resonant Converters Using State Feedback. IEEE Transactions on Power Electronics [online], Vol 28(8), pp. 3896-3911. Available from: http://dx.doi.org/10.1109/TPEL.2012.2231700
    This paper proposes a linearized large signal state-space model for the fixed-frequency phase-controlled series-parallel resonant converter. The proposed model utilizes state feedback of the output filter inductor current ...
  • Overcoming fuel-air mixing issues with pulsed scramjets and pelletized fuel. 

    Macleod, Christopher; Capanni, Niccolo Francesco; Gow, Kenneth S. (British Interplanetary Society http://www.jbis.org.uk/paper.php?p=2015.68.354, 2015-11-01)
    MACLEOD, C., CAPANNI, N.F. and GOW, K.S., 2015. Overcoming fuel-air mixing issues with pulsed scramjets and pelletized fuel. Journal of the British Interplanetary Society [online], Vol 68 (11), pp. 354-362. Available from: http://www.jbis.org.uk/paper.php?p=2015.68.354
    n this paper the concept of a pulsed Scramjet using pelletized fuel is examined. The aim is to overcome the main technical problem inherent in more traditional designs - poor air-fuel mixing. In this new paradigm, airflow ...
  • Performance evaluation of an inventive CO2 gas separation inorganic ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (World Academy of Science, Engineering and Technology http://scholar.waset.org/1999.2/10001660, 2015-06-30)
    NWOGU, N., KAJAMA, M. and GOBINA, E., 2015. Performance evaluation of an inventive CO2 gas separation inorganic ceramic membrane. World Academy of Science, Engineering and Technology, International Science Index 102: International journal of chemical, molecular, nuclear, materials and metallurgical engineering [online], 9(6), pp. 662-665. Available from: http://scholar.waset.org/1999.2/10001660
    Atmospheric carbon dioxide emissions are considered as the greatest environmental challenge the world is facing today. The tasks to control the emissions include the recovery of CO2 from flue gas. This concern has been ...
  • Investigation of structural parameter dependence of confinement losses in PCF–FBG sensor for oil and gas sensing applications. 

    Johny, Jincy; Prabhu, Radhakrishna; Fung, Wai-Keung (Springer https://dx.doi.org/10.1007/s11082-016-0528-8, 2016-03-25)
    JOHNY, J., PRABHU, R. and FUNG, W.-K. 2016. Investigation of structural parameter dependence of confinement losses in PCF–FBG sensor for oil and gas sensing applications. Optical and quantum electronics [online], 48(4), article 252. Available from: https://dx.doi.org/10.1007/s11082-016-0528-8
    Photonic crystal fibre (PCF)–fibre bragg grating (FBG) integration opens up new possibilities in multi-parameter fibre-optic sensing, owing to their active control over light characteristics and mode confinements. Their ...
  • Graphics processing unit based acceleration of electromagnetic transients simulation. 

    Debnath, Jayanta K.; Gole, Aniruddha M.; Fung, Wai-Keung (IEEE https://dx.doi.org/10.1109/TPWRD.2015.2492983, 2015-10-26)
    DEBNATH, J.K., GOLE, A.M. and FUNG, W.-K. 2015. Graphics processing unit based acceleration of electromagnetic transients simulation. IEEE transactions on power delivery [online], Early Access. Available from: https://dx.doi.org/10.1109/TPWRD.2015.2492983
    This paper presents a novel parallelization approach to speedup EMT simulation, using GPU-based computing. This paper extends earlier published works in the area, by exploiting additional parallelism to accelerate EMT ...
  • Position referenced force augmentation in teleoperated hydraulic manipulators operating under delayed and lossy networks: a pilot study. 

    Maddahi, Yaser; Liao, Stephen; Fung, Wai-Keung; Sepehri, Nariman (Elsevier http://dx.doi.org/10.1016/j.robot.2016.04.006, 2016-05-04)
    MADDAHI, Y., LIAO, S., FUNG, W.-K. and SEPEHRI, N. 2016. Position referenced force augmentation in teleoperated hydraulic manipulators operating under delayed and lossy networks: a pilot study. Robotics and autonomous systems [online], Articles in Press. Available from: http://dx.doi.org/10.1016/j.robot.2016.04.006
    Position error between motions of the master and slave end-effectors is inevitable as it originates from hard-to-avoid imperfections in controller design and model uncertainty. Moreover, when a slave manipulator is controlled ...
  • An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. 

    Faisal, Nadimul Haque; Ahmed, R.; Prathuru, A. K.; Spence, S.; Hossain, Mamdud; Steel, John A. (Elsevier http://dx.doi.org/10.1016/j.engfracmech.2014.07.015, 2014-07-29)
    FAISAL, N.H., AHMED, R., PRATHURU, A.K., SPENCE, S., HOSSAIN, M. and STEEL, J.A. 2014. An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. Engineering fracture mechanics [online], 128, pages 189-204. Available from: http://dx.doi.org/10.1016/j.engfracmech.2014.07.015
    This study presents an improved approach to the quality assessment of thermally sprayed coatings. Measurements were carried out on five different coatings. Since it is the overall extent of surface cracking during Vickers ...
  • 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)
    KAJAMA, M.N., NWOGU, N.C. and GOBINA, E., 2014. Gas permeation study using porous ceramic membranes. Energy and Environment Research, Vol 4 (3), pp. 43-49.
    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)
    NWOGU, N. and GOBINA, E., 2015. Gas permeation behaviour of single and mixed gas components using an asymmetric ceramic membrane. Proceedings of the World Academy of Science, Engineering and Technology, Vol 9 (6), pp. 677-681.
    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)
    SACHSE, S., PORURI, M., SILVA, F., MICHALOWSKI, S., PIELICHOWSKI, K. and NJUGUNA, J., 2014. Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores. Journal of Sandwich Structures and Materials, Vol 16 (2), pp. 173-194.
    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)
    ZHU, J, NJUGUNA, J., ABHYANKAR, H., ZHU, H., PERREUX, D., THIEBAUD, F., CHAPELLE, D., PIZZI, A., SAUGET, A., DE LARMINAT, A. and NICOLLIN, A., 2013. Effect of fibre configurations on mechanical properties of flax/tannin composites. Industrial Crops and Products, Vol. 50, pp. 68-76.
    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)
    MOUTI, Z., WESTWOOD, K., LONG, D. and NJUGUNA, J. 2013. An experimental investigation into localised low-velocity impact loading on glass fibre-reinforced polyamide automotive product. Composite Structures, Vol. 104, pp. 43-53.
    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 ...

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