All Outputs (619)

Numerical and experimental investigation of the effect of process parameters on sheet deformation during the electromagnetic forming of AA6061-T6 alloy. (2020)
Journal Article
KHAN, Z., KHAN, M., JAFFERY, S.H.I., YOUNAS, M., AFAQ, K.S. and KHAN, M.A. 2020. Numerical and experimental investigation of the effect of process parameters on sheet deformation during the electromagnetic forming of AA6061-T6 alloy. Mechanical sciences [online], 11(2), pages 329-347. Available from: https://doi.org/10.5194/ms-11-329-2020

Electromagnetic forming is a high-speed sheet metal forming technique to form metallic sheets by applying magnetic forces. In comparison to the conventional sheet metal forming process, electromagnetic forming is a process with an extremely high velo... Read More about Numerical and experimental investigation of the effect of process parameters on sheet deformation during the electromagnetic forming of AA6061-T6 alloy..

A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. (2020)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2020. A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. Decision making: applications in management and engineering [online], 3(2), pages 97-118. Available from: https://doi.org/10.31181/dmame2003097v

Classical decision and value of information theories have been applied in the oil and gas industry from the 1960s with partial success. In this research, we identify that the classical theory of value of information has weaknesses related with optima... Read More about A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria..

A fuzzy cooperative localisation framework for underwater robotic swarms. (2020)
Journal Article
SABRA, A. and FUNG, W.-K. 2020. A fuzzy cooperative localisation framework for underwater robotic swarms. Sensors [online], 20(19), article ID 5496. Available from: https://doi.org/10.3390/s20195496

This article proposes a holistic localisation framework for underwater robotic swarms to dynamically fuse multiple position estimates of an autonomous underwater vehicle while using fuzzy decision support system. A number of underwater localisation m... Read More about A fuzzy cooperative localisation framework for underwater robotic swarms..

Numerical investigations on the propagation of fire in a railway carriage. (2020)
Journal Article
CRAIG, M. and ASIM, T. 2020. Numerical investigations on the propagation of fire in a railway carriage. Energies [online], 13(19), article ID 4999. Available from: https://doi.org/10.3390/en13194999

In this study, advanced Computational Fluid Dynamics (CFD)-based numerical simulations have been performed in order to analyse fire propagation in a standard railway compartment. A Fire Dynamics Simulator (FDS) has been employed to mimic real world s... Read More about Numerical investigations on the propagation of fire in a railway carriage..

A strategic decision framework for a sustainable wastewater treatment and management in the oil producing region. (2020)
Journal Article
HASHIM, I.A., HAMMA-ADAMA, M. and SURENDRAN, S. 2020. A strategic decision framework for a sustainable wastewater treatment and management in the oil producing region. Civil and environmental research [online], 12(8), pages 35-61. Available from: https://doi.org/10.7176/CER/12-8-04

The study aimed to investigate how managing the growing water demand and wastewater production by treating and reclaiming Water from the Wastewater in Delta State. Mainly to carry out a comparative feasibility study and develop a decision support sys... Read More about A strategic decision framework for a sustainable wastewater treatment and management in the oil producing region..

The silver lining of COVID‐19: estimation of short‐term health impacts due to lockdown in the Yangtze River Delta region, China. (2020)
Journal Article
HUANG, L., LIU, Z., LI, H., WANG, Y., LI, Y., ZHU, Y., OOI, M.C.G., AN, J., SHANG, Y., ZHANG, D., CHAN, A. and LI, L. 2020. The silver lining of COVID-19: estimation of short-term health impacts due to lockdown in the Yangtze River Delta Region, China. GeoHealth [online], 4(9), e2020GH000272. Available from: https://doi.org/10.1029/2020gh000272

The outbreak of COVID-19 in China has led to massive lockdowns in order to reduce the spread of the epidemic and control human-to-human transmission. Subsequent reductions in various anthropogenic activities have led to improved air quality during th... Read More about The silver lining of COVID‐19: estimation of short‐term health impacts due to lockdown in the Yangtze River Delta region, China..

Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes. (2020)
Journal Article
AFOLABI, R.O., OLUYEMI, G.F., OFFICER, S. and UGWU, J.O. 2020. Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes. Journal of molecular liquids [online], 317, article ID 114142. Available from: https://doi.org/10.1016/j.molliq.2020.114142

Hydrophobic interactions are an inherent property of associative polymers which results in the formation of molecular aggregates. The loss of hydrophobic interactions under reservoir conditions have been reported, and this results in increased fluid... Read More about Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes..

A new active power controller in dual active bridge DC-DC converter with a minimum-current-point-tracking technique. (2020)
Journal Article
HEBALA, O.M., ABOUSHADY, A.A., AHMED, K.H., ABDELSALAM, I. and BURGESS, S.J. 2021. A new active power controller in dual active bridge DC-DC converter with a minimum-current-point-tracking technique. IEEE journal of emerging and selected topics in power electronics [online], 9(2), pages 1328-1338. Available from: https://doi.org/10.1109/jestpe.2020.3016771

This article proposes a new controller for power regulation in dual active bridge (DAB) dc-dc converter based on a new scheme that tracks minimum RMS current to ensure minimum losses. The proposed controller is based on an implementation of perturb a... Read More about A new active power controller in dual active bridge DC-DC converter with a minimum-current-point-tracking technique..

Particle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocomposites. (2020)
Journal Article
BLAZQUEZ, M., MARCHANTE, V., GENDRE, L., STAROST, K., NJUGUNA, J., SCHUTZ, J.A., LACAVE, J.M., EGIZABAL, A., ELIZETXEA, C. and CAJARAVILLE, M.P. 2020. Particle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocomposites. Journal of aerosol science [online], 150, article ID 105629. Available from: https://doi.org/10.1016/j.jaerosci.2020.105629

Researchers and legislators have both claimed the necessity to standardize the exposure assessment of polymer nanocomposites throughout their life cycle. In the present study we have developed and compared three different and independent operational... Read More about Particle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocomposites..

Electroencephalogram (EEG) human stress level classification based on theta/beta ratio. (2020)
Journal Article
WEN, T.Y., BANI, N.A., MUHAMMAD-SUKKI, F. and MOHD-ARIS, S.A. 2020. Electroencephalogram (EEG) human stress level classification based on theta/beta ratio. International journal of integrated engineering [online], 12(6): electrical and electronic engineering, pages 174-180. Available from: https://doi.org/10.30880/ijie.2020.12.06.020

Stress analysis by utilizing electroencephalography (EEG) device in conjunction with signal processing techniques has emerged as an important area of research and the efforts are being made on detecting and classifying stress level. Non-invasive EEG... Read More about Electroencephalogram (EEG) human stress level classification based on theta/beta ratio..

Oil-based mud waste reclamation and utilisation in low-density polyethylene composites. (2020)
Journal Article
SIDDIQUE, S., YATES, K., MATTHEWS, K., CSETENYI, L.J. and NJUGUNA, J. 2020. Oil-based mud waste reclamation and utilisation in low-density polyethylene composites. Waste management and research [online], 38(12), pages 1331-1344. Available from: https://doi.org/10.1177/0734242X20941076

Oil-based mud (OBM) waste from the oil and gas exploration industry can be valorised to tailor-made reclaimed clay-reinforced low-density polyethylene (LDPE) nanocomposites. This study aims to fill the information gap in the literature and to provide... Read More about Oil-based mud waste reclamation and utilisation in low-density polyethylene composites..

Upgrading biogas to biomethane by use of nano-structured ceramic membranes. (2020)
Journal Article
OGUNLUDE, P., ABUNUMAH, O., ORAKWE, I., SHEHU, H., MUHAMMAD-SUKKI, F. and GOBINA, E. 2020. Upgrading biogas to biomethane by use of nano-structured ceramic membranes. Detritus [online], 12, pages 73-77. Available from: https://doi.org/10.31025/2611-4135/2020.13996

In order to meet the demands of growing economies while considering environmental implications, the use of clean and renewable sources of energy has increasingly become of interest. Biogas utilisation is a means by which these rising needs can be met... Read More about Upgrading biogas to biomethane by use of nano-structured ceramic membranes..

Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry. (2020)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2020. Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry. International journal of applied decision sciences [online], 13(3), pages 344-362. Available from: https://doi.org/10.1504/IJADS.2020.10026404

Value of information is a widely accepted methodology for evaluating the need to acquire new data in the oil and gas industry. In the conventional approach to estimating the value of information, the outcomes of a project assessment relate to the dec... Read More about Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry..

Local multiphase flow characteristics of a severe-service control valve. (2020)
Journal Article
SINGH, D., ALIYU, A.M., CHARLTON, M., MISHRA, R., ASIM, T. and OLIVEIRA, A.C. 2020. Local multiphase flow characteristics of a severe-service control valve. Journal of petroleum science and engineering [online], 195, article ID 107557. Available from: https://doi.org/10.1016/j.petrol.2020.107557

For safety-critical industrial applications, severe-service valves are often used, and the conditions during operations can be either single phase or multiphase. The design requirements for valves handling multiphase flows can be very different to th... Read More about Local multiphase flow characteristics of a severe-service control valve..

Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure. (2020)
Journal Article
UYANGA, K. A., OKPOZO, O. P., ONYEKWERE, O. S., and DAOUD, W. A. 2020. Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure. Reactive and functional polymers [online], 154, article ID 104682. Available from: https://doi.org/10.1016/j.reactfunctpolym.2020.104682

Composite hydrogels based on natural polymers arouse interest as sustainable matrices for the delivery of bioactive materials. This study investigates the possibility of achieving high thermally and hydrolytically stable, well-defined microstructure... Read More about Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure..

Computational fluid dynamics (CFD) transient pressure and temperature simulation of a natural gas–hydrogen gas blend transportation pipeline. (2020)
Journal Article
UMUTEME, O.M. 2020. Computational fluid dynamics (CFD) transient pressure and temperature simulation of a natural gas–hydrogen gas blend transportation pipeline. International journal of innovative research and development [online], 9(6), pages 112-116. Available from: https://doi.org/10.24940/ijird/202/v9/i6/JUN20056

The need for a CFD exploratory investigation into the possible effect of hydrogen injection into existing natural gas pipeline network, was the driver for this study. Recent technical feasibility reports on transporting a blend of both gases (JIR, 20... Read More about Computational fluid dynamics (CFD) transient pressure and temperature simulation of a natural gas–hydrogen gas blend transportation pipeline..

The influence of leadership career development on the organizational adaptiveness of millennial engineers in the Nigerian oil and gas industry. (2020)
Journal Article
UMUTEME, O.M. 2020. The influence of leadership career development on the organizational adaptiveness of millennial engineers in the Nigerian oil and gas industry. The international journal of humanities and social studies [online], 8(6), pages 329-337. Available from: https://doi.org/10.24940/theijhss/2020/v8/i6/HS2006-061

Introduction: This study seeks to assess the attitude of millennial engineers towards leadership career development opportunities in the oil and gas industry in Nigeria. It was conducted based on the gap in the literature of none existence of a frame... Read More about The influence of leadership career development on the organizational adaptiveness of millennial engineers in the Nigerian oil and gas industry..

A novel research approach for whole-life-cycle electrical power systems asset management using retroductive case study method. (2020)
Journal Article
BRUINERS, J., NJUGUNA, J. and AGARWAL, A. 2020. A novel research approach for whole-life-cycle electrical power systems asset management using retroductive case study method. Innovative energy and research [online], 9(2), article number 1000234. Available from: https://www.omicsonline.org/open-access/a-novel-research-approach-for-wholelifecycle-electrical-power-systems-asset-management-using-retroductive-case-study-met.pdf

There are a vast number of complex influences on power systems assets both individually and as a collection of systems of assets. The complexities when governing what and when to intervene with these assets is played out over varying time frames and... Read More about A novel research approach for whole-life-cycle electrical power systems asset management using retroductive case study method..

Life cycle assessment of a rotationally asymmetrical compound parabolic concentrator (RACPC). (2020)
Journal Article
ZAWADZKI, P., MUHAMMAD-SUKKI, F., ABU-BAKAR, S.H., BANI, N.A., MAS'UD, A.A., ARDILA-REY, J.A. and MUNIR, A.B. 2020. Life cycle assessment of a rotationally asymmetrical compound parabolic concentrator (RACPC). Sustainability [online], 12(11), article ID 4750. Available from: https://doi.org/10.3390/su12114750

Integrating a concentrator into the building integrated photovoltaic (BIPV) design has resulted in a new technology known as the building integrated concentrating photovoltaic (BICPV). The rotationally asymmetrical compound parabolic concentrator (RA... Read More about Life cycle assessment of a rotationally asymmetrical compound parabolic concentrator (RACPC)..

Effect of fracture roughness on the hydrodynamics of proppant transport in hydraulic fractures. (2020)
Journal Article
SURI, Y. ISLAM, S.Z. and HOSSAIN, M. 2020. Effect of fracture roughness on the hydrodynamics of proppant transport in hydraulic fractures. Journal of natural gas science and engineering [online], 80, article ID 103401. Available from: https://doi.org/10.1016/j.jngse.2020.103401

The effect of fracture roughness is investigated on proppant transport in hydraulic fractures using Joint Roughness Coefficient and a three-dimensional multiphase modelling approach. The equations governing the proppant transport physics in the fract... Read More about Effect of fracture roughness on the hydrodynamics of proppant transport in hydraulic fractures..