All Outputs (43)

Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. (2014)
Journal Article
NWOGU, N.C., KAJAMA, M.N. and GOBINA, E. 2014. Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. International journal of advanced research in engineering and technology (IJARET) [online], 5(8), pages 1-9. Available from: http://www.iaeme.com/MasterAdmin/Journal_uploads/IJARET/VOLUME_5_ISSUE_8/IJARET_05_08_001.pdf

The purpose of membrane gas separation for CO2 capture from flue gas process is to reduce greenhouse emissions as well as associated environmental challenges globally. This study looks at gas separation in a single gas permeation experiment using CO2... Read More about Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane..

Mechanical and impact performance of three-phase polyamide 6 nanocomposites. (2014)
Journal Article
GENDRE, L., NJUGUNA, J., ABHYANKAR, H. and ERMINI, V. 2015. Mechanical and impact performance of three-phase polyamide 6 nanocomposites. Materials and design [online], 66(Part B), pages 486-491. Available from: https://doi.org/10.1016/j.matdes.2014.08.005

In this work, three-phase nanocomposites using multiscale reinforcements were studied to evaluate the influence of nanofillers on static and dynamic mechanical properties at varying temperature conditions. In particular, short-fibres reinforced polya... Read More about Mechanical and impact performance of three-phase polyamide 6 nanocomposites..

Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries. (2014)
Journal Article
KARIM, M.E., MUNIR, A.B., REZA, A.W., MUHAMMAD-SUKKI, F., YASIN, S.H.M., ABU-BAKAR, S.H. and RAHIM, R.A. 2015. Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries. Technological forecasting and social change [online], 92, pages 168-181. Available from: https://doi.org/10.1016/j.techfore.2014.07.003

Nanotechnology has the prospect to vibrate the imagination of human being and has the ability to be used in almost every sector of human need. With its limitless potentials, there are many environmental, health and safety related concerns due to extr... Read More about Too enthusiastic to care for safety: present status and recent developments of nanosafety in ASEAN countries..

Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study. (2014)
Journal Article
SINHA, Y., STEEL, J.A., ANDRAWUS, J.A. and GIBSON, K. 2014. Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study. Wind engineering [online], 38(4), pages 441-449. Available from: https://doi.org/10.1260/0309-524x.38.4.441

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 others. Periodic inspection... Read More about Significance of effective lubrication in mitigating system failures: a wind turbine gearbox case study..

Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. (2014)
Journal Article
NASSIOPOULOS, E. and NJUGUNA, J. 2015. Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. Materials and design [online], 66(Part B), pages 473-485. Available from: https://doi.org/10.1016/j.matdes.2014.07.051

In this study, the thermo-mechanical performance of flax fibre reinforced poly lactic acid (PLA) biocomposites was investigated for the potential use in load bearing application such as body-in-white and body structures in the automotive sector. Focu... Read More about Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites..

An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. (2014)
Journal Article
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: https://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 indentation that is indicati... Read More about An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings..

Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. (2014)
Journal Article
KRUANETR, S., POLLARD, P., FERNANDEZ, C. and PRABHU, R. 2014. Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene. International journal of electrochemical science [online], 9(10), pages 5699-5711. Available from: https://doi.org/10.1016/S1452-3981(23)08199-3

We present in this manuscript for the first time the electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolitic graphite electrode (EPPGE) modified with graphene. The electroche... Read More about Electrochemical oxidation of acetyl salicylic acid and its voltammetric sensing in real samples at a sensitive edge plane pyrolytic graphite electrode modified with graphene..

Gas permeation study using ceramic membranes. (2014)
Journal Article
KAJAMA, M.N., NWOGU, N.C. and GOBINA, E. 2014. Gas permeation study using ceramic membranes. Energy and environment research [online], 4(3), pages 43-49. Available from: https://doi.org/10.5539/eer.v4n3p43

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 average pressure at room temper... Read More about Gas permeation study using ceramic membranes..

Structure-property relationships in a CoCrMo alloy at micro and nano-scales. (2014)
Journal Article
AHMED, R., DE VILLIERS LOVELOCK, H.L., FAISAL, N.H. and DAVIES, S. 2014. Structure-property relationships in a CoCrMo alloy at micro and nano-scales. Tribology international [online], 80, pages 98-114. Available from: https://doi.org/10.1016/j.triboint.2014.06.015

This investigation considered the multiscale tribo-mechanical evaluations of CoCrMo (Stellite®21) alloys manufactured via two different processing routes of casting and HIP-consolidation from powder (Hot Isostatic Pressing). These involved hardness,... Read More about Structure-property relationships in a CoCrMo alloy at micro and nano-scales..

Developing a solar calculator system. (2014)
Journal Article
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://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 introduced to encourage people t... Read More about Developing a solar calculator system..

Double skin façade: modelling technique and influence of venetian blinds on the airflow and heat transfer. (2014)
Journal Article
IYI, D., HASAN, R., PENLINGTON, R. and UNDERWOOD, C. 2014. Double skin façade: modelling technique and influence of venetian blinds on the airflow and heat transfer. Applied thermal engineering [online], 71(1), pages 219-229. Available from: https://doi.org/10.1016/j.applthermaleng.2014.06.024

The demand to reduce building cooling load and annual energy consumption can be optimised with the use of Double Skin Facade (DSF). Computational Fluid Dynamics (CFD) methods are frequently used for the analysis of heat transfer through DSF. However,... Read More about Double skin façade: modelling technique and influence of venetian blinds on the airflow and heat transfer..

Nanoindentation of polysilicon and single crystal silicon: molecular dynamics simulation and experimental validation. (2014)
Journal Article
GOEL, S., FAISAL, N.H., LUO, X., YAN, J. and AGRAWAL, A. 2014. Nanoindentation of polysilicon and single crystal silicon: molecular dynamics simulation and experimental validation. Journal of physics D: applied physics [online], 47(27), article number 275304. Available from: https://doi.org/10.1088/0022-3727/47/27/275304

This paper presents novel advances in the deformation behaviour of polycrystalline and single crystal silicon using molecular dynamics (MD) simulation and validation of the same via nanoindentation experiments. In order to unravel the mechanism of de... Read More about Nanoindentation of polysilicon and single crystal silicon: molecular dynamics simulation and experimental validation..

The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites. (2014)
Journal Article
SILVA, F., SACHSE, S., ZHU, H., PIELICHOWSKI, K., LESZCZYNSKA, A. and NJUGUNA, J. 2014. The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites. Journal of sustainable mobility, 1(1), pages 37-52. Available from: https://doi.org/10.9774/GLEAF.2350.2014.00005

In order to develop advanced materials as lightweight structures three-phased composites were prepared using nano-fillers, nano-silica (nano-SiO2) and nano-clay and micro glass-spheres to reinforce two kinds of glass-fibre reinforced thermoplastic ma... Read More about The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites..

Cost modelling to support optimised selection of the end of life options for automotive components. (2014)
Journal Article
XU, Y., SANCHEZ, J.F. and NJUGUNA, J. 2014. Cost modelling to support optimised selection of the end of life options for automotive components. International journal of advanced manufacturing technology [online], 73(1-4), pages 399-407. Available from: https://doi.org/10.1007/s00170-014-5804-9

In automotive sector, the End-of-Life components, especially the uni-material components e.g. steel, plastics etc., traditionally normally go to material recycling. However, this conventional disposing approach has nowadays moved towards the secondar... Read More about Cost modelling to support optimised selection of the end of life options for automotive components..

Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination. (2014)
Journal Article
TOKODE, O., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2014. Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination. Applied catalysis B: environmental [online], 156-157, pages 398-403. Available from: https://doi.org/10.1016/j.apcatb.2014.03.046

Quantum yields of the photocatalytic degradation of methyl orange under controlled periodic illumination (CPI) have been modelled using existing models. A modified Langmuir-Hinshelwood (L-H) rate equation was used to predict the degradation reaction... Read More about Mathematical modelling of quantum yield enhancements of methyl orange photooxidation in aqueous TiO2 suspensions under controlled periodic UV LED illumination..

Can a carbon nano-coating resist metallic phase transformation in silicon substrate during nanoimpact? (2014)
Journal Article
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: https://doi.org/10.1016/j.wear.2014.03.009

Nanomechanical response of a silicon specimen coated with a sp3 crystalline carbon coating (1.8nm thickness) was investigated using MD simulation. A sharp conical rigid tip was impacted at the speed of 50m/s up to a depth of ~80% of the coating thick... Read More about Can a carbon nano-coating resist metallic phase transformation in silicon substrate during nanoimpact?.

Feed-in tariff for solar photovoltaic: the rise of Japan. (2014)
Journal Article
MUHAMMAD-SUKKI, F., ABU-BAKAR, S.H., MUNIR, A.B., YASIN, S.H.M., RAMIREZ-INIGUEZ, R., MCMEEKIN, S.G., STEWART, B.G., SARMAH, N., MALLICK, T.K., RAHIM, R.A., KARIM, M.E., AHMAD, S. and TAHAR, R.M. 2014. Feed-in tariff for solar photovoltaic: the rise of Japan. Renewable energy [online], 68, pages 636-643. Available from: https://doi.org/10.1016/j.renene.2014.03.012

Japan started implementing a national Feed-In Tariff (FiT) mechanism on the 1st July 2012, which included specific payment tariffs for solar photovoltaic (PV) installations. This marks a new era in the renewable energy landscape in Japan. This paper... Read More about Feed-in tariff for solar photovoltaic: the rise of Japan..

The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources. (2014)
Journal Article
TOKODE, O., PRABHU, R., LAWTON, L.A. and ROBERTSON, P.K.J. 2014. The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources. Chemical engineering journal [online], 246, pages 337-342. Available from: https://doi.org/10.1016/j.cej.2014.03.002

The nature of photon interaction and reaction pH can have significant impacts on semiconductor photocatalysis. This paper describes the effect of pH on the photonic efficiency of photocatalytic reactions in the aqueous phase using TiO2 catalysts. The... Read More about The effect of pH on the photonic efficiency of the destruction of methyl orange under controlled periodic illumination with UV-LED sources..

Single asperity nanoscratch behaviour of HIPed and cast Stellite 6 alloys. (2014)
Journal Article
AHMED, R., ASHRAF, A., ELAMEEN, M., FAISAL, N.H., EL-SHERIK, A.M., ELAKWAH, Y.O. and GOOSEN, M.F.A. 2014. Single asperity nanoscratch behaviour of HIPed and cast Stellite 6 alloys. Wear [online], 312(1-2), pages 70-82. Available from: https://doi.org/10.1016/j.wear.2014.02.006

The aim of this study was to investigate the nanoscale sliding wear behaviour of re-HIPed (Hot Isostatically Pressed) and cast cobalt-based Stellite 6 alloys. A nanoindentation system equipped with a wear testing module was used to simulate single as... Read More about Single asperity nanoscratch behaviour of HIPed and cast Stellite 6 alloys..

Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores. (2014)
Journal Article
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 [online], 16(2), pages 173-194. Available from: https://doi.org/10.1177/1099636213512497

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%, were synthesized through... Read More about Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores..