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Oil based drilling fluid waste: an overview on environmentally persistent pollutants. (2017)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2016. Oil based drilling fluid waste: an overview on environmentally persistent pollutants. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012008. Available from: https://doi.org/10.1088/1757-899X/195/1/012008

Operational discharges of spent drilling fluid, produced water, and accumulated drill cuttings from oil and gas industry are a continuous point source of environmental pollution. To meet the strict environmental standard for waste disposal, oil and g... Read More about Oil based drilling fluid waste: an overview on environmentally persistent pollutants..

Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites. (2017)
Journal Article
WATSON, G., STAROST, K., BARI, P., FAISAL, N., MISHRA, S. and NJUGUNA, J. 2016. Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012009. Available from: https://doi.org/10.1088/1757-899X/195/1/012009

In this study, nano-sized graphene oxide sheets were homogenously dispersed via sonication methods in epoxy followed by vacuum resin infusion for the fabrication of the epoxy, graphene oxide (GO) and micro-sized carbon fibre reinforced nanocomposites... Read More about Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites..

Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite. (2017)
Journal Article
STAROST, K., FRIJNS, E., LAER, J.V., FAISAL, N., EGIZABAL, A., ELIZEXTEA, C., NELISSEN, I., BLAZQUEZ, M. and NJUGUNA, J. 2016. Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012011. Available from: https://doi.org/10.1088/1757-899X/195/1/012011

In this study, the effect on nanoparticle emissions due to drilling on Polypropylene (PP) reinforced with 20% talc, 5% montmorillonite (MMT) and 5% Wollastonite (WO) is investigated. The study is the first to explore the nanoparticle release from WO... Read More about Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite..

The 3rd international conference on structural nano composites (NANOSTRUC2016). (2017)
Journal Article
NJUGUNA, J. 2017. The 3rd international conference on structural nano composites (NANOSTRUC2016). IOP conference series: materials science and engineering [online], 195: proceedings of 3rd International conference on structural nano composites (NANOSTRUC2016): Nanoscience and nanotechnologies; recent advances towards nanoproducts and applications, 12-15 September 2016, Aberdeen, UK, article 011001. Available from: https://doi.org/10.1088/1757-899X/195/1/011001

The Robert Gordon University, Aberdeen hosted The NANOSTRUC 2016 in Aberdeen (Scotland, United Kingdom). The conference focused on 'Nanoscience and Nanotechnologies – Recent Advances towards Nanoproducts and Applications'. It promoted activities in v... Read More about The 3rd international conference on structural nano composites (NANOSTRUC2016)..

Comparison of artificial neural network and multiple regression for partial discharge sources recognition. (2017)
Conference Proceeding
MAS'UD, A.A., MUHAMMAD-SUKKI, F., ALBARRACIN, R., ARDILA-REY, J.A., ABU-BAKAR, S.H., AZIZ, N.F.A., BANI, N.A. and MUHTAZARUDDIN, M.N. 2017. Comparison of artificial neural network and multiple regression for partial discharge sources recognition. In Proceedings of the 9th IEEE-GCC conference and exhibition 2017 (GCCCE 2017), 8-11 May 2017, Manama, Bahrain. New York: IEEE [online], article number 8448033, pages 519-522. Available from: https://doi.org/10.1109/IEEEGCC.2017.8448033

This paper compares the capabilities of the artificial neural network (ANN) and multiple linear regression (MLR) for recognizing and discriminating partial discharge (PD) defects. Statistical fingerprints obtained from a several PD measurement were a... Read More about Comparison of artificial neural network and multiple regression for partial discharge sources recognition..

Numerical investigation of nanostructured silica PCFs for sensing applications. (2017)
Journal Article
JOHNY, J., PRABHU, R. and FUNG, W.K. 2017. Numerical investigation of nanostructured silica PCFs for sensing applications. JOM: journal of the Minerals, Metals and Materials Society [online], 69(11), pages 2286-2291. Available from: https://doi.org/10.1007/s11837-017-2366-y

Photonic crystal fibers (PCFs) developed using nanostructured composite materials provide special optical properties. PCF light propagation and modal characteristics can be tailored by modifying their structural and material parameters. Structuring a... Read More about Numerical investigation of nanostructured silica PCFs for sensing applications..

Development of novel vehicle design modelling functions for quantifying vehicles’ shapes. (2017)
Journal Article
SENDANAYAKE, I., ASIM, T. and MISHRA, R. 2017. Development of novel vehicle design modelling functions for quantifying vehicles' shapes. International journal of research, science, technology and management: proceedings of 2017 International conference mechanical, energy and power systems (ICMEPS 2017), 20-21 January 2017, Bhopal, India [online], 7(1), pages 26-31. Available from: http://ijrstm.net/?ddownload=517

The inland goods transportation sector has become dominant by high fuel consuming heavy goods vehicles, which are more commonly known as truck-trailer units. Manufacturers have been trying to design aerodynamically efficient truck-trailer units to re... Read More about Development of novel vehicle design modelling functions for quantifying vehicles’ shapes..

A critical evaluation of the prospects for a transition towards ocean based renewable energy development in Nigeria. (2017)
Thesis
OSU, V.R. 2017. A critical evaluation of the prospects for a transition towards ocean based renewable energy development in Nigeria. Robert Gordon University, PhD thesis.

The move towards addressing two pertinent energy challenges that is access to electricity and climate change has seen the transition towards sustainable forms of energy including Ocean Based Renewable Energy (OBRE). However, much work remains to be d... Read More about A critical evaluation of the prospects for a transition towards ocean based renewable energy development in Nigeria..

Study on the structural, morphological and optical properties of RF-sputtered dysprosium-doped barium tungstate thin films. (2017)
Journal Article
HRIDYA, S., KAVITHA, V.S., CHALANA, S.R., RESHMI KRISHNAN, R., SREEJA SREEDHARAN, R., SURESH, S., NAMPOORI, V.P.N., SANKARARAMAN, S., PRABHU, R. and MAHADEVAN PILLAI, V.P. 2017. Study on the structural, morphological and optical properties of RF-sputtered dysprosium-doped barium tungstate thin films. JOM: journal of the Minerals, Metals and Materials Society [online], 69(11), pages 2272-2277. Available from: https://doi.org/10.1007/s11837-017-2360-4

Barium tungstate films with different Dy3+ doping concentrations, namely 0 wt.%, 1 wt.%, 3 wt.% and 5 wt.%, are deposited on cleaned quartz substrate by radio frequency magnetron sputtering technique and the prepared films are annealed at a temperatu... Read More about Study on the structural, morphological and optical properties of RF-sputtered dysprosium-doped barium tungstate thin films..

Physico‐mechanical properties of nano‐polystyrene‐decorated graphene oxide–epoxy composites. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2017. Physico-mechanical properties of nano polystyrene decorated graphene oxide-epoxy composites. Polymer international [online], 66(10), pages 1402-1409. Available from: https://doi.org/10.1002/pi.5392

In this work, nano polystyrene (nPS) decorated graphene oxide (GO) hybrid nanostructures were successfully synthesized using stepwise micro emulsion polymerization, and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffractom... Read More about Physico‐mechanical properties of nano‐polystyrene‐decorated graphene oxide–epoxy composites..

Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2018. Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites. Polymer composites [online], 39(10), pages 3519-3527. Available from: https://doi.org/10.1002/pc.24371

Exfoliated graphene oxide (GO) and Mg-Al-layered double hydroxides (LDHs) nanostructures (LDHs@GO)-filled ethylene vinyl acetate (EVA)-based hybrid nanocomposites were prepared by solution reflux technique followed by injection molding. The physico-m... Read More about Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites..

Distribution power loss minimization via distributed generation, capacitor and network reconfiguration. (2017)
Journal Article
MUHTAZARUDDIN, M.N.B., BANI, N.A., MOHD ARIS, S.A., JALIL, S.Z.A., MAD KAIDI, H., ABD FATAH, A.Y., JAMIAN, J.J., MUHAMMAD-SUKKI, F. and ABU-BAKAR, S.H. 2017. Distribution power loss minimization via distributed generation, capacitor and network reconfiguration. Indonesian journal of electrical engineering and computer science [online], 5(3), pages 488-495. Available from: https://doi.org/10.11591/ijeecs.v5.i3.pp488-495

This paper presents a solution to solve the network reconfiguration, DG coordination (location and size) and capacitor coordination (location and size), simultaneously. The proposed solution will be determined by using Artificial Bee Colony (ABC). Va... Read More about Distribution power loss minimization via distributed generation, capacitor and network reconfiguration..

Wind power potentials in Cameroon and Nigeria: lessons from South Africa. (2017)
Journal Article
MAS'UD, A.A., WIRBA, A.V., ARDILA-REY, J.A., ALBARRACIN, R., MUHAMMAD-SUKKI, F., DUQUE, A.J., BANI, N.A. and MUNIR, A.B. 2017. Wind power potentials in Cameroon and Nigeria: lessons from South Africa. Energies [online], 10(4), article ID 443. Available from: https://doi.org/1996-1073/10/4/443

Wind energy has seen a tremendous growth for electricity generation worldwide and reached 456 GW by the end of June 2016. According to the World Wind Energy Association, global wind power will reach 500 GW by the end of 2016. Africa is a continent th... Read More about Wind power potentials in Cameroon and Nigeria: lessons from South Africa..

Assessment of effective radiated power of the partial discharge emulator source. (2017)
Conference Proceeding
JABER, A., LAZARIDIS, P., SAEED, B., ZHANG, Y., KHAN, U., UPTON, D., AHMED, H., MATHER, P., ATKINSON, R., JUDD, M., VIEIRA, M.F.Q. and GLOVER, I. 2016. Assessment of effective radiated power of the partial discharge emulator source. In Otung, I., Pillai, P., Eleftherakis, G. and Giambene, G. (eds.) Wireless and satellite systems: proceedings of 8th Wireless and satelite systems international conference 2016 (WiSATS 2016), 19-20 September 2016, Cardiff, UK. Lecture notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 186. Cham: Springer [online], pages 108-115. Available from: https://doi.org/10.1007/978-3-319-53850-1_12

Two effective partial discharge (PD) measurement techniques are used; a galvanic contact measurement technique similar to the IEC 60270 standard measurement and free-space radiometric (FSR) measurement. Several types of PD sources are specially const... Read More about Assessment of effective radiated power of the partial discharge emulator source..

Acoustic emission method for defect detection and identification in carbon steel welded joints. (2017)
Journal Article
DROUBI, M.G., FAISAL, N.H., ORR, F., STEEL, J.A. and EL-SHAIB, M. 2017. Acoustic emission method for defect detection and identification in carbon steel welded joints. Journal of constructional steel research [online], 134, pages 28-37. Available from: https://doi.org/10.1016/j.jcsr.2017.03.012

Detecting welding defects in industrial equipment (welded joints and built-up structures) is a key aspect in evaluating the probability of failure in different situations. Acoustic emission (AE) is an effective non-destructive detecting technique, an... Read More about Acoustic emission method for defect detection and identification in carbon steel welded joints..

Core-double shell hybrid nanocomposites as multi-functional advanced materials. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2017. Core-double shell hybrid nanocomposites as multi-functional advanced materials. Polymer bulletin [online], 74(11), pages 4681-4700. Available from: https://doi.org/10.1007/s00289-017-1983-5

In this research work, we report circular type silane-modified CaCO3 (as core) nanoparticles (NP) encapsulated with polystyrene (PS) and polymethyl methacrylate (PMMA) (as double shell layers). These core-double shell [CaCO3-PS/PMMA] hybrid nanostruc... Read More about Core-double shell hybrid nanocomposites as multi-functional advanced materials..

Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical. (2017)
Conference Proceeding
EDIDIONG, O., HABIBA, S. and GOBINA, E. 2017. Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical. In Ao, S.I., Gelman, L., Hukins, D.W.L., Hunter, A. and Korsunsky, A.M. (eds.) Proceedings of the 2017 International multiconference of engineers and computer scientists (IMECS 2017), 15-17 March 2017, Hong Kong, China. Lecture notes in engineering and computer science, 2228. Hong Kong: Newswood Ltd [online], pages 811-817. Available from: http://www.iaeng.org/publication/IMECS2017/IMECS2017_pp811-817.pdf

In this work, the batch process esterification reaction was carried out at 80 oC using different types of heterogeneous catalysts. The heterogeneous resin catalysts used for the analysis were amberlyst 15, amberlyst 36, amberlyst 16 and dowex 50W8x.... Read More about Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical..

Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. (2017)
Journal Article
FAISAL, N.H., PRATHURU, A.K., GOEL, S., AHMED, R., DROUBI, M.G., BEAKE, B.D. and FU, Y.Q. 2017. Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. Shape memory and superelasticity [online], 3(2), pages 149-167. Available from: https://doi.org/10.1007/s40830-017-0099-y

The mechanisms of nanoscale fatigue of functionally graded TiN/TiNi films have been studied using multiple-loading cycle nanoindentation and nano-impact tests. The functionally graded films were sputter-deposited onto silicon substrates, in which the... Read More about Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film..

Large-eddy-simulation-based analysis of complex flow structures within the volute of a vaneless centrifugal pump. (2017)
Journal Article
ASIM, T. and MISHRA, R. 2017. Large-eddy-simulation-based analysis of complex flow structures within the volute of a vaneless centrifugal pump. Sādhanā [online], 42(4), pages 505-516. Available from: https://doi.org/10.1007/s12046-017-0623-y

Centrifugal pumps are very common in many fluid handling industrial applications, such as petrochemicals, oil and gas, etc. Although the design practices for centrifugal pumps are well established, efforts are directed towards optimising such systems... Read More about Large-eddy-simulation-based analysis of complex flow structures within the volute of a vaneless centrifugal pump..