Skip to main content

Research Repository

Advanced Search

All Outputs (96)

Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. (2018)
Conference Proceeding
WUYEP, E., OLUYEMI, G., YATES, K. and AKISANYA, A. 2019. Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. In Kallel A., Erguler, Z.A., Cui, Z.-D., Karrech, A., Karakus, M., Kulatilake, P. and Shukla, S.K. (eds.) Recent advances in geo-environmental engineering, geomechanics and geotechnics, and geohazards: proceedings of the 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1), 12-15 November 2018, Hammamet, Tunisia. Advances in science, technology and innovation: IEREK interdisciplinary series for sustainable development. Cham: Springer [online], pages 183-185. Available from: https://doi.org/10.1007/978-3-030-01665-4_43

The effects of chemical interaction of a biocide with formation rocks on the rock geomechanical strength were examined. A combination of analytical tests (Scanning Electron Microscopy/Energy-Dispersive X-Ray Analysis-SEM/EDX, X-Ray Powder Diffraction... Read More about Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions..

Effect of short-term water exposure on mechanical properties of multi-layer graphene and multi-walled carbon nanotubes-reinforced epoxy nanocomposites. (2018)
Journal Article
SAHARUDIN, M.S., HASBI, S., RASHID, N.M. and NORDIN, M.S.J. 2018. Effect of short-term water exposure on mechanical properties of multi-layer graphene and multi-walled carbon nanotubes-reinforced epoxy nanocomposites. Journal of engineering science and technology [online], 13(12), pages 4226-4239. Available from: https://tinyurl.com/5n687hym

The influence of short-term water absorption on the mechanical properties of Multi-Layer Graphene (MLG) and Multi-Walled Carbon Nanotubes (MWCNTs) reinforced epoxy hybrid nanocomposites were studied. Water absorption test was conducted by immersing s... Read More about Effect of short-term water exposure on mechanical properties of multi-layer graphene and multi-walled carbon nanotubes-reinforced epoxy nanocomposites..

Petroleum production: polymers in. (2018)
Book Chapter
OLUYEMI, G.F. 2019. Petroleum production: polymers in. In Mishra, M. (ed.) Encyclopedia of polymer applications. Abingdon: CRC Press [online], chapter 98, pages 2041-2060. Available from: https://doi.org/10.4324/9781351019422

Polymers are widely used in oil and gas industry for a range of petroleum production applications. Their viscoelastic and solution thickening properties have particularly made them a chemical of choice for petroleum production applications. This entr... Read More about Petroleum production: polymers in..

Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces. (2018)
Journal Article
PANCHOLI, K., ROBERTSON, P.K.J., OKPOZO, P., BEATTIE, N.S. and HUO, D. 2019. Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces. Journal of physics: energy [online], 1(1), article ID 015007. Available from: https://doi.org/10.1088/2515-7655/aaec3d

This paper reports for the first time the observation of stimulated emissions from the gas–liquid interface between two adjacent bubbles in highly ordered foams containing Rhodamine 6 G and surfactant. Stimulated emissions centred at 595 nm were obse... Read More about Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces..

An Eulerian–Eulerian formulation for erosion modelling: an alternate approach. (2018)
Presentation / Conference
TANDON, M.P., MOHAN, S.J., KARNIK, A.U. and GADA, V.H. 2018. An Eulerian–Eulerian formulation for erosion modelling: an alternate approach. Presented at the 7th International and 45th National fluid mechanics and fluid power conference (FMFP 2018), 10-12 December 2018, Mumbai, India.

Sand is commonly produced besides petroleum fluids and it presents a major erosional hazard leading to pipe failures. Particle erosion is a complex process in which material is removed due to the repeated particle impacts. Conventionally, a CFD flow... Read More about An Eulerian–Eulerian formulation for erosion modelling: an alternate approach..

Generalized small-signal modelling of dual active bridge DC/DC converter. (2018)
Conference Proceeding
HEBALA, O.M., ABOUSHADY, A.A., AHMED, K.H., BURGESS, S. and PRABHU, R. 2018. Generalized small-signal modelling of dual active bridge DC/DC converter. In Proceedings of the 7th International conference on renewable energy research and applications (ICRERA 2018), 14-17 October 2018, Paris, France. Piscataway: IEEE [online], article ID 8567014, pages 914-919. Available from: https://doi.org/10.1109/ICRERA.2018.8567014

This paper presents a novel generalised approach of the small-signal modelling of dual active bridge (DAB) DC/DC converter. The adopted analysis is based on a per-unit fundamental frequency representation of the DAB. The outcome of the proposed model... Read More about Generalized small-signal modelling of dual active bridge DC/DC converter..

Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. (2018)
Thesis
NWINEE, S.A. 2018. Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. Robert Gordon University, PhD thesis.

Environmental pollution from oilfield drilling waste poses potential hazards which can lead to ecological imbalance. The predominant pollutant from oilfield waste is petroleum hydrocarbons. Some effects of petroleum hydrocarbon contamination in soil... Read More about Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil..

Assessment of health status of the elderly and pre-elderly at a Malaysia elderly care centre. (2018)
Journal Article
BANI, N.A., HASSAN, M.Z., MAD KAIDI, H., HASHIM, N.F.M., DZIYAUDDIN, R.A., MUSA, R., SUHOT, M.A., USMAN, S., MUHAMMAD-SUKKI, F., ABU-BAKAR, S.H. and MAS'UD, A.A. 2018. Assessment of health status of the elderly and pre-elderly at a Malaysia elderly care centre. International journal of integrated engineering [online], 10(7), pages 10-22. Available from: http://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/3470

They were once called the baby boomers, born between 1946 to 1964, but now aged above 50 years old, they contribute to the increasing number of elderly population in Malaysia. Age classification for elderly people varies between countries but commonl... Read More about Assessment of health status of the elderly and pre-elderly at a Malaysia elderly care centre..

Evaluation of solar factor using spectral analysis for CdTe photovoltaic glazing. (2018)
Journal Article
ALRASHIDI, H., GHOSH, A., ISSA, W., SELLAMI, N., MALLICK, T.K. and SUNDARAM, S. 2019. Evaluation of solar factor using spectral analysis for CdTe photovoltaic glazing. Materials letters [online], 237, pages 332-335. Available from: https://doi.org/10.1016/j.matlet.2018.11.128

Solar and luminous light transmission control using Cadmium Telluride (CdTe) based PV glazing systems (15cm × 15cm × 0.6cm) were evaluated in this work. Indoor spectral characterisation showed that average solar transmission for investigated three di... Read More about Evaluation of solar factor using spectral analysis for CdTe photovoltaic glazing..

Real-time relative permeability prediction using deep learning. (2018)
Journal Article
ARIGBE, O.D., OYENEYIN, M.B., ARANA, I. and GHAZI, M.D. 2019. Real-time relative permeability prediction using deep learning. Journal of petroleum exploration and production technologies [online], 9(2), pages 1271-1284. Available from: https://doi.org/10.1007/s13202-018-0578-5

A review of the existing two and three phase relative permeability correlations shows a lot of pitfalls and restrictions imposed by (a) their assumptions (b) generalization ability and (c) difficulty with updating in real time for different reservoir... Read More about Real-time relative permeability prediction using deep learning..

An efficient algorithm for partial discharge localization in high-voltage systems using received signal strength. (2018)
Journal Article
KHAN, U.F., LAZARIDIS, P.I., MOHAMED, H., ALBARRACIN, R., ZAHARIS, Z.D., ATKINSON, R.C., TACHTATZIS, C. and GLOVER, I.A. 2018. An efficient algorithm for partial discharge localization in high-voltage systems using received signal strength. Sensors [online], 18(11), article ID 4000. Available from: https://doi.org/10.3390/s18114000

The term partial discharge (PD) refers to a partial bridging of insulating material between electrodes that sustain an electric field in high-voltage (HV) systems. Long-term PD activity can lead to catastrophic failures of HV systems resulting in eco... Read More about An efficient algorithm for partial discharge localization in high-voltage systems using received signal strength..

Simulating the annual energy yield of a rotationally asymmetrical optical concentrator. (2018)
Conference Proceeding
FREIER, D., MUHAMMAD-SUKKI, F., ABU-BAKAR, S.H., RAMIREZ-INIGUEZ, R., MUNIR, A.B., YASIN, S.H.M., BANI, N.A., MAS'UD, A.A., ARDILA-REY, J.A., KARIM, M.E. and YUSOFF, Z. 2018. Simulating the annual energy yield of a rotationally asymmetrical optical concentrator. In Proceedings of the 7th IEEE international conference on photonoics (ICP 2018), 9-11 April 2018, Langkawi, Malaysia. Piscataway, NJ: IEEE [online], article ID 8533197. Available from: https://doi.org/10.1109/ICP.2018.8533197

This paper simulates the annual energy yield of a concentrator called the rotationally asymmetrical dielectric totally internally reflective concentrator (RADTIRC). One specific design of the RADTIRC is assumed to be installed in Berlin/Brandenburg,... Read More about Simulating the annual energy yield of a rotationally asymmetrical optical concentrator..

Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP). (2018)
Journal Article
ANI, M., OLUYEMI, G., PETROVSKI, A. and REZAEI-GOMARI, S. 2019. Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP). Journal of petroleum science and engineering [online], 174, pages 833-843. Available from: https://doi.org/10.1016/j.petrol.2018.11.024

The selection of an optimal model from a set of multiple realizations for dynamic reservoir modelling and production forecasts has been a persistent issue for reservoir modelers and decision makers. Current evidence has shown that many presumably goo... Read More about Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP)..

The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. (2018)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2019. The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. Polymer degradation and stability [online], 159, pages 139-152. Available from: https://doi.org/10.1016/j.polymdegradstab.2018.11.004

The crystallinity and thermal degradation behaviours of Polyamide 6/Oil Based Mud Fillers (PA6/OBMFs) nanocomposites have been investigated using DSC and TGA. TGA indicates the onset decomposition temperature of D1/2 (half-decomposition) is 16º C hig... Read More about The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites..

A pilot study of malnutrition among elderly in a Malaysia elderly care centre - part I: assessment of handgrip strength measurement. (2018)
Conference Proceeding
BANI, N.A., HASSAN, M.Z., MAD KAIDI, H., HASHIM, N.F.M., DZIYAUDDIN, R.A., MUSA, R., SUHOT, M.A., USMAN, S., MUHAMMAD-SUKKI, F., ABU-BAKAR, S.H. and MAS'UD, A.A. 2018. A pilot study of malnutrition among elderly in a Malaysia elderly care centre - part I: assessment of handgrip strength measurement. In Proceedings of the 2nd International conference on biosignal analysis, processing and systems (ICBAPS), 24-26 July 2018, Kuching, Malaysia. Piscataway, NJ: IEEE [online], pages 119-122. Available from: https://doi.org/ 10.1109/ICBAPS.2018.8527416

The number of elderly population in Malaysia of aged 60 years and above is expected to increase every year. Apart from that, the life expectancy of the elderly population is also estimated to rise up with female tend to live longer than male. These u... Read More about A pilot study of malnutrition among elderly in a Malaysia elderly care centre - part I: assessment of handgrip strength measurement..

Sustainable energy for emerging nations development: a case study on Togo renewable energy. (2018)
Conference Proceeding
KANSONGUE, N., NJUGUNA, J. and VERTIGANS, S. 2018. Sustainable energy for emerging nations development: a case study on Togo renewable energy. In Proceedings of the Institute of Electrical and Electronics Engineers (IEEE) Power and Energy Society (PES) and Industrial Applications Society (IAS) PowerAfrica 2018 conference, 26-29 June 2018, Cape Town, South Africa. Piscataway, NJ: IEEE [online], pages 137-141. Available from: https://doi.org/10.1109/PowerAfrica.2018.8521054

This paper explores the need for an appropriate energy delivery, placing emphasis on the role of the indigenous people in developing their future needs. The case study is based on Togo renewable energy sustainability and employs qualitative and quant... Read More about Sustainable energy for emerging nations development: a case study on Togo renewable energy..

A unified global investigation on the spectral effects of soiling losses of PV glass substrates: preliminary results. (2018)
Conference Proceeding
MICHELI, L., FERNÁNDEZ, E.F., SMESTAD, G.P., ALRASHIDI, H., SARMAH, N., SELLAMI, N., HASSAN, I.A.I., KASRY, A., NOFUENTES, G., SOOD, N., PESALA, B., SENTHILARASU, S., ALMONACID, F., REDDY, K.S., MULLER, M. and MALLICK, T.K. 2018. A unified global investigation on the spectral effects of soiling losses of PV glass substrates: preliminary results. In the Proceedings of the 44th Institute of Electrical and Electronics Engineers (IEEE) photovoltaic specialist conference 2017 (2017 IEEE PVSC-44), 25-30 June 2017, Washinghton, USA. Piscataway, NJ: IEEE [online], article ID 8366317. Available from: https://doi.org/10.1109/PVSC.2017.8366317

The present work reports on the initial results of an international collaboration aiming to investigate the spectral effects of soiling losses. Identical glass coupons have been exposed outdoors for eight weeks in different locations worldwide, and w... Read More about A unified global investigation on the spectral effects of soiling losses of PV glass substrates: preliminary results..

Neutron scattering study of strain behaviour of porous rocks subjected to heating and unconfined uniaxial compression. (2018)
Journal Article
FAISAL, N.H., SANAEE, R., SINGH, R.M., MURRAY, J., MCLAUGHLIN, A., HEALY, D. and LEE, T.-L. 2018. Neutron scattering study of strain behaviour of porous rocks subjected to heating and unconfined uniaxial compression. Journal of physics: conference series [online], 1106: proceedings of the 2018 Modern practice in stress and vibration analysis (MPSVA 2018), 2-4 July 2018, Cambridge, UK, article ID 012011. Available from: https://doi.org/10.1088/1742-6596/1106/1/012011

Neutron scattering (at ENGIN-X) was used to examine strain distributions in two hydrocarbon reservoir rock types (i.e. sandstone and chalk) under uniaxial stress (up to 35 MPa) at temperature as high as 70 °C to utilise the advantages of neutron scat... Read More about Neutron scattering study of strain behaviour of porous rocks subjected to heating and unconfined uniaxial compression..

Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. (2018)
Thesis
WUYEP, E.O. 2018. Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Sand failure may result in the production of formation sand at the same time the formation fluids are being produced. Sand failure occurs when the formation stress exceeds the strength of the formation, which is derived mainly from the natural materi... Read More about Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models..

Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications. (2018)
Thesis
ORAKWE, I.R. 2018. Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications. Robert Gordon University, PhD thesis.

Water obtained from the sea contains dissolved oxygen (DO) and is considered to be undesirable for use in down-hole water injection or other process applications. The presence of DO leads to corrosion and other related problems and hence the need for... Read More about Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications..