All Outputs (616)

Material challenges and opportunities in 3D printing for hip implant applications. (2022)
Journal Article
OKOLIE, O., STACHUREK, I., KANDASUBRAMANIAN, B. and NJUGUNA, J. 2022. Material challenges and opportunities in 3D printing for hip implant applications. Recent progress in materials [online], 4(1): 3D printing of engineering materials, article 2201004. Available from: https://doi.org/10.21926/rpm.2201004

There is a current need for tissue and organ repairs, replacement and regeneration for the patients who suffer from diseased/damaged tissues or organs. This situation is continuously on the rise and the supply on this form of therapy does not meet th... Read More about Material challenges and opportunities in 3D printing for hip implant applications..

Optimization of the wake oscillator for transversal VIV. (2022)
Journal Article
KURUSHINA, V., POSTNIKOV, A., FRANZINI, G.R. and PAVLOVSKAIA, E. 2022. Optimization of the wake oscillator for transversal VIV. Journal of marine science and engineering [online], 10(2), article number 293. Available from: https://doi.org/10.3390/jmse10020293

Vibrations of slender structures associated with the external flow present a design challenge for the energy production systems placed in the marine environment. The current study explores the accuracy of the semi-empirical wake oscillator models for... Read More about Optimization of the wake oscillator for transversal VIV..

Co-simulation of optimal EVSE and techno-economic system design models for electrified fleets. (2022)
Journal Article
ERDOGAN, N., KUCUKSARI, S. and CALI, U. 2022. Co-simulation of optimal EVSE and techno-economic system design models for electrified fleets. IEEE access [online], 10, pages 18988-18997. Available from: https://doi.org/10.1109/ACCESS.2022.3150359

As the transition to electric mobility is expanding at a rapid pace, operationally feasible and economically viable charging infrastructure is needed to support electrified fleets. This paper presents a co-simulation of optimal electric vehicle suppl... Read More about Co-simulation of optimal EVSE and techno-economic system design models for electrified fleets..

On the mechanical properties of melt-blended nylon 6/ethylene-octene copolymer/graphene nanoplatelet nanocomposites. (2022)
Journal Article
ATTAR, S., CHEN, B., CICALA, G., CATALANOTTI, G., SCALICI, T. and FALZON, B.G. 2022. On the mechanical properties of melt-blended nylon 6/ethylene-octene copolymer/graphene nanoplatelet nanocomposites. Polymer [online], 243, article 124619. Available from: https://doi.org/10.1016/j.polymer.2022.124619

Ethylene-octene copolymer (EOC) with a loading level of 20 wt%, maleated EOC (EOC-g-MA) with a loading level of 3 wt% and graphene nanoplatelets (GnPs) at four different loading levels, i.e., 3 wt%, 5 wt%, 10 wt% and 15 wt% were added to nylon 6 to p... Read More about On the mechanical properties of melt-blended nylon 6/ethylene-octene copolymer/graphene nanoplatelet nanocomposites..

An assessment of renewable energy development in energy mix for Togo. (2022)
Journal Article
KANSONGUE, N., NJUGUNA, J. and VERTIGANS, S. 2022. An assessment of renewable energy development in energy mix for Togo. International journal of sustainable energy [online], 41(8), pages 1037-1056. Available from: https://doi.org/10.1080/14786451.2021.2023150

The Togolese government plans to achieve 100% electrification to all by 2030, to meet the Millennium goals. The Delphi method is used with the experts drawn from policymakers, academic institutions, financial institutions, non-governmental institutio... Read More about An assessment of renewable energy development in energy mix for Togo..

Co-pyrolysis for bio-oil production via fixed bed reactor using date seeds and plastic waste as biomass. (2022)
Journal Article
INAYAT, A., ROCHA-MENESES, L., GHENAI, C., ABDALLAH, M., SHANABLEH, A., AL-ALI, K., ALGHFELI, A. and ALSUWAIDI, R. 2022. Co-pyrolysis for bio-oil production via fixed bed reactor using date seeds and plastic waste as biomass. Case studies in thermal engineering [online], 31, article number 101841. Available from: https://doi.org/10.1016/j.csite.2022.101841

The consumption of plastic bottles is relatively high in the United Arab Emirates (UAE). Therefore, in this study authors investigated the potential of combined plastic waste and locally available biomass (date seeds) to produce value-added products... Read More about Co-pyrolysis for bio-oil production via fixed bed reactor using date seeds and plastic waste as biomass..

Simple deterministic selection-based genetic algorithm for hyperparameter tuning of machine learning models. (2022)
Journal Article
RAJI, I.D., BELLO-SALAU, H., UMOH, I.J., ONUMANYI, A.J., ADEGBOYE, M.A. and SALAWUDEEN, A.T. 2022. Simple deterministic selection-based genetic algorithm for hyperparameter tuning of machine learning models. Applied sciences [online], 12(3), article 1186. Available from: https://doi.org/10.3390/app12031186

Hyperparameter tuning is a critical function necessary for the effective deployment of most machine learning (ML) algorithms. It is used to find the optimal hyperparameter settings of an ML algorithm in order to improve its overall output performance... Read More about Simple deterministic selection-based genetic algorithm for hyperparameter tuning of machine learning models..

Multi-temporal analysis of past and future land cover change in the highly urbanized state of Selangor, Malaysia. (2022)
Journal Article
AZARI, M., BILLA, L. and CHAN, A. 2022. Multi-temporal analysis of past and future land cover change in the highly urbanized state of Selangor, Malaysia. Ecological processes [online], 11, article number 2. Available from: https://doi.org/10.1186/s13717-021-00350-0

This study analysed the multi-temporal trend in land cover, and modelled a future scenario of land cover for the year 2030 in the highly urbanized state of Selangor, Malaysia. The study used a Decision Forest-Markov chain model in the land change mod... Read More about Multi-temporal analysis of past and future land cover change in the highly urbanized state of Selangor, Malaysia..

Comparative analysis of the performance of hydrophobically associating polymer, xanthan and guar gum as mobility control agent, in enhanced oil recovery application. (2022)
Journal Article
OGUNKUNLE, T.F., ONI, B.A., AFOLABI, R.O., FADAIRO, A.S., OJO, T. and ADESINA, O. 2022. Comparative analysis of the performance of hydrophobically associating polymer, xanthan and guar gum as mobility control agent, in enhanced oil recovery application. Journal of King Saud University (Engineering science)[online], 34(7), pages 402-407. Available from: https://doi.org/10.1016/j.jksues.2022.01.003

This study aimed at evaluating the performance of hydrophobically associating polymer (HAPAM), xanthan gum, and guar gum in enhanced oil recovery (EOR) processes. Their performances in terms of oil recovery applications were investigated through rheo... Read More about Comparative analysis of the performance of hydrophobically associating polymer, xanthan and guar gum as mobility control agent, in enhanced oil recovery application..

Characterization and hydrodynamic evaluation of the relationship between permeability and microstructure parameters ceramic membranes for the separation of oil-in-water emulsion. (2022)
Journal Article
AISUENI, F., GOBINA, E., HASHIM, I. and OGOUN, E. 2022. Characterization and hydrodynamic evaluation of the relationship between permeability and microstructure parameters ceramic membranes for the separation of oil-in-water emulsion. International journal of engineering, science and technology [online], 4(1), pages 14-20. Available from: https://doi.org/10.46328/ijonest.69

Ceramic membranes for wastewater treatment are usually fine filters prepared by sintering of alumina, titania or zirconia powders at ultra-high temperatures and have an asymmetric cross-section using the same material or a combination of the three gi... Read More about Characterization and hydrodynamic evaluation of the relationship between permeability and microstructure parameters ceramic membranes for the separation of oil-in-water emulsion..

Nanoporous gas transport in shale gas reservoirs. (2022)
Journal Article
OGOUN, E., OGUNLUDE, P., ABUNOMAH, O. and GOBINA, E. 2022. Nanoporous gas transport in shale gas reservoirs. International journal on engineering, science and technology [online], 4(1), pages 73-84. Available from: https://doi.org/10.46328/ijonest.70

In more conventional gas reservoirs, gas flow is simple, uncomplicated, and described by simple flux pressure drop expressions. In shale reservoirs however, this relationship takes the form of a more complex and multiscale flow process involving spec... Read More about Nanoporous gas transport in shale gas reservoirs..

Effect of reservoir structural rhythm on carbon capture and sequestration (CCS) performance. (2022)
Journal Article
ABUNUMAH, O., OGUNLUDE, P., OGOUN, E., RAMALAN, M., ANTWI, S., AISUENI, F., HASHIM, I. and GOBINA, E. 2022. Effect of reservoir structural rhythm on carbon capture and sequestration (CCS) performance. International journal on engineering, science and technology [online], 4(1), pages 41-53. Available from: https://doi.org/10.46328/ijonest.72

In addition to the evolution of green and nano energy, sequestration of CO2 is also an evolving method to control the global CO2 footprint and greenhouse effect. Carbon Capture and Sequestration (CCS) is an established technique to capture carbon fro... Read More about Effect of reservoir structural rhythm on carbon capture and sequestration (CCS) performance..

Mass transfer characteristics through alumina membranes with different pores sizes and porosity. (2022)
Journal Article
OGUNLUDE, P., ABUNOMAH, O., HASHIM, I., AISUENI, F., OGOUN, E., ANTWI, S., RAMALAN, M., WILLIAMWEST, T., SUKKI, F.M. and GOBINA, E. 2022. Mass transfer characteristics through alumina membranes with different pores sizes and porosity. International journal of engineering, science and technology [online], 4(1), pages 99-123. Available from: https://doi.org/10.46328/ijonest.71

Different membranes covering the macroporous to nano-pororous range and having different porosities have been used to study the mass transfer of methane and carbon dioxide single gases. The effect of flow parameters on the transport mechanisms throug... Read More about Mass transfer characteristics through alumina membranes with different pores sizes and porosity..

A review of recent advancements in offshore wind turbine technology. (2022)
Journal Article
ASIM, T., ISLAM, S.Z., HEMMATI, A. and KHALID, M.S.U. 2022. A review of recent advancements in offshore wind turbine technology. Energies [online], 15(2), article 579. Available from: https://doi.org/10.3390/en15020579

Offshore wind turbines are becoming increasingly popular due to their higher wind energy harnessing capabilities and lower visual pollution. Researchers around the globe have been reporting significant scientific advancements in offshore wind turbine... Read More about A review of recent advancements in offshore wind turbine technology..

Parametric analysis using CFD to study the impact of geometric and numerical modeling on the performance of a small scale horizontal axis wind turbine. (2022)
Journal Article
SIDDIQUI, M.S., KHALID, M.H., BADAR, A.W., SAEED, M. and ASIM, T. 2022. Parametric analysis using CFD to study the impact of geometric and numerical modeling on the performance of a small scale horizontal axis wind turbine. Energies [online], 15(2), article 505. Available from: https://doi.org/10.3390/en15020505

The reliance on Computational Fluid Dynamics (CFD) simulations has drastically increased over time to evaluate the aerodynamic performance of small-scale wind turbines. With the rapid variability in customer demand, industrial requirements, economic... Read More about Parametric analysis using CFD to study the impact of geometric and numerical modeling on the performance of a small scale horizontal axis wind turbine..

The fate of waste drilling fluids from oil and gas industry activities in the exploration and production operations. (2022)
Journal Article
NJUGUNA, J., SIDDIQUE, S., KWROFFIE, L.B., PIROMRAT, S., ADDAE-AFOAKWA, K., EKEH-ADEGBOTOLU, U., OLUYEMI, G., YATES, K., MISHRA, A.K. and MOLLER, L. 2022. The fate of waste drilling fluids from oil and gas industry activities in the exploration and production. Waste management [online], 139, pages 362-380. Available from: https://doi.org/10.1016/j.wasman.2021.12.025

Operational discharges from oil and gas exploration industry, accidental spillage, or improperly disposed drilling wastes has serious detrimental effects on human and the environment. The water- and oil-based fluids wastes are generated every year al... Read More about The fate of waste drilling fluids from oil and gas industry activities in the exploration and production operations..

Promoting the solar industry in Ghana through effective Public-Private Partnership (PPP): some lessons from South Africa and Morocco. (2021)
Journal Article
AWUKU, S.A., BENNADJI, A., MUHAMMAD-SUKKI, F. and SELLAMI, N. 2022. Promoting the solar industry in Ghana through effective Public-Private Partnership (PPP): some lessons from South Africa and Morocco. Energies [online], 15(1), article 17. Available from: https://doi.org/10.3390/en15010017

Over the past decades, solar energy has gained much attention in Ghana, especially after the 2012–2016 power crisis. The government through Public-Private Partnerships (PPPs) has attempted to increase the shares of solar generation to augment its eff... Read More about Promoting the solar industry in Ghana through effective Public-Private Partnership (PPP): some lessons from South Africa and Morocco..

Experimental testing on the influence of shaft rotary lip seal misalignment for a marine hydro-kinetic turbine. (2021)
Journal Article
HAND, B.P., ERDOGAN, N., MURRAY, D., CRONIN, P., DORAN, J. and MURPHY, J. 2022. Experimental testing on the influence of shaft rotary lip seal misalignment for a marine hydro-kinetic turbine. Sustainable energy technologies and assessments [online], 50, article 101874. Available from: https://doi.org/10.1016/j.seta.2021.101874

Tidal energy has received considerable attention over the past decade due to its predictability and high power density. The research in the tidal turbine area has concentrated primarily on the improvement of the energy conversion efficiency. In contr... Read More about Experimental testing on the influence of shaft rotary lip seal misalignment for a marine hydro-kinetic turbine..

Determination of cure mechanism inside die for a part manufacturing during large-scale pultrusion. (2021)
Journal Article
MUKHERJI, A., TARAPORE, N. and NJUGUNA, J. 2022. Determination of cure mechanism inside die for a part manufacturing during large-scale pultrusion. Journal of applied polymer science [online], 139(17), article 52035. Available from: https://doi.org/10.1002/app.52035

The cure kinetics of resin, heat capacity and thermal conductivity of reinforcing materials of uncured mass dictates the ultimate curing of reinforced thermosets manufactured component. In this study, degree of conversion from heat capacity by ‘Lumry... Read More about Determination of cure mechanism inside die for a part manufacturing during large-scale pultrusion..

The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli. (2021)
Journal Article
SALUBI, V., MAHON, R. and OLUYEMI, G. 2022. The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli. Journal of petroleum science and engineering [online], 211, article 110018. Available from: https://doi.org/10.1016/j.petrol.2021.110018

The accurate prediction of the fluid dynamics and hydraulics of the axial or helical flow of non-Newtonian drilling fluids in the annuli is essential for the determination and effective management of wellbore pressure during drilling operations. Prev... Read More about The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli..