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Speckle pattern analysis of security holograms and related foils for quality assessment and authentication. (2022)
Conference Proceeding
KRISHNAN S., K., AMBADIYIL, S., JHA, A.K. and PRABHU, R. 2022. Speckle pattern analysis of security holograms and related foils for quality assessment and authentication. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Counterterrorism, crime fighting, forensics, and surveillance technologies VI: proceedings of the 6th Counterterrorism, crime fighting, forensics, and surveillance technologies, co-located with SPIE (Society of Photo-optical Instrumentation Engineers) Security + defence conference 2022, 5-6 September 2022, Berlin, Germany. Proceedings of SPIE, 12275. Bellingham, WA: SPIE [online], article 1227509. Available from: https://doi.org/10.1117/12.2635446

A speckle pattern is produced by the mutual interference of a set of coherent wavefronts. Speckle patterns typically occur in diffuse reflections of monochromatic light such a laser light. When a rough surface is illuminated by a coherent light is im... Read More about Speckle pattern analysis of security holograms and related foils for quality assessment and authentication..

A simulation into the physical and network layers of optical communication network for the subsea video surveillance of illicit activity. (2022)
Conference Proceeding
STEWART, C., FOUGH, N. and PRABHU, R. 2022. A simulation into the physical and network layers of optical communication network for the subsea video surveillance of illicit activity. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Counterterrorism, crime fighting, forensics, and surveillance technologies VI: proceedings of the 6th Counterterrorism, crime fighting, forensics, and surveillance technologies, co-located with SPIE (Society of Photo-optical Instrumentation Engineers) Security + defence conference 2022, 5-6 September 2022, Berlin, Germany. Proceedings of SPIE, 12275. Bellingham, WA: SPIE [online], article 1227508. Available from: https://doi.org/10.1117/12.2641374

Criminal activity is increasingly entering the ocean subsurface with acts such as illegal fishing and narco-submarining becoming points of contention. This among other illicit acts taking place in this domain imply a need for surveillance to render t... Read More about A simulation into the physical and network layers of optical communication network for the subsea video surveillance of illicit activity..

A design technique for geometric optimisation of resonant coil sizes in low to mid frequency inductive power transmission systems. (2021)
Thesis
HEIDARIAN, M. 2021. A design technique for geometric optimisation of resonant coil sizes in low to mid frequency inductive power transmission systems. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1677972

Wireless power transfer (WPT) is a well-established method of energising electrically-powered devices. Among the different available WPT techniques, Resonant Inductive Power Transfer (RIPT) has been adapted for use in a wide range of applications. Th... Read More about A design technique for geometric optimisation of resonant coil sizes in low to mid frequency inductive power transmission systems..

Cooperative localisation in underwater robotic swarms for ocean bottom seismic imaging. (2021)
Thesis
SABRA, A. 2021. Cooperative localisation in underwater robotic swarms for ocean bottom seismic imaging. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1358139

Spatial information must be collected alongside the data modality of interest in wide variety of sub-sea applications, such as deep sea exploration, environmental monitoring, geological and ecological research, and samples collection. Ocean-bottom se... Read More about Cooperative localisation in underwater robotic swarms for ocean bottom seismic imaging..

Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system. (2021)
Thesis
BALOGUN, Y. 2021. Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1357866

Relative permeability is affected by several flow parameters, predominantly operating temperature and fluid viscosity. Fluid viscosity changes with temperature, which correspondingly affects the relative permeability. Temperature is believed to have... Read More about Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system..

Investigations of hollow-core photonic crystal fibres (HC-PCF) for trace explosive vapour detection. (2020)
Conference Proceeding
JOHNY, J., KARNIK, S. and PRABHU, R. 2020. Investigations of hollow-core photonic crystal fibres (HC-PCF) for trace explosive vapour detection. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 4th Counterterrorism, crime fighting, forensics, and surveillance technologies conference 2020, co-located with the Society of Photo-Optical Instrumentation Engineers (SPIE) Security and defence 2020 conference, 21-25 September 2020, [virtual conference]. Proceedings of the SPIE, 11542. Bellingham, WA: SPIE [online], article ID 115420Q. Available from: https://doi.org/10.1117/12.2574356

Trace detection and identification of hazardous volatile explosives has been a key challenge to the scientific community past many decades. Commercially available various analytical and spectroscopic techniques suffer from low sensitivity, swabbing o... Read More about Investigations of hollow-core photonic crystal fibres (HC-PCF) for trace explosive vapour detection..

Design and analysis of current stress minimalisation controllers in multi-active bridge DC-DC converters. (2020)
Thesis
HEBALA, O.M. 2020. Design and analysis of current stress minimalisation controllers in multi-active bridge DC-DC converters. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Multi active bridge (MAB) DC-DC converters have attracted significant research attention in power conversion applications within DC microgrids, medium voltage DC and high voltage DC transmission systems. This is encouraged by MAB's several functional... Read More about Design and analysis of current stress minimalisation controllers in multi-active bridge DC-DC converters..

The development of an electrochemical sensing device for controlled drugs. (2019)
Thesis
WADDELL, S.A. 2019. The development of an electrochemical sensing device for controlled drugs. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1677791

Forensic chemists can be faced with a wide array of substances to test when attending clandestine drug manufacture crime scenes. Whilst many techniques exist at their disposal - such as chemical colour test reagents and immunoassays - these methods a... Read More about The development of an electrochemical sensing device for controlled drugs..

Nile red-dye based analysis of synthetic fibres for forensic applications. (2019)
Conference Proceeding
DEVALLA, S., JOSEPH, O. and PRABHU, R. 2019. Nile red-dye based analysis of synthetic fibres for forensic applications. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 3rd Counterterrorism, crime fighting, forensics, and surveillance technologies conference 2019: co-located with the Society of Photo-Optical Instrumentation Engineers (SPIE) Security and defence 2019 conference, 9-12 September 2019, Strasbourg, France. Proceedings of the SPIE, 11166. Bellingham, WA: SPIE [online], article ID 111660Y. Available from: https://doi.org/10.1117/12.2536780

Forensic evaluation of crime scenes normally involves examination of textile fibers, to find out the association between an individual and a crime scene, or between a suspect and a victim. The forensic samples normally include a mix of various types,... Read More about Nile red-dye based analysis of synthetic fibres for forensic applications..

Fluorescence lifetime assisted enhanced security feature in travel documents for border control and security applications. (2019)
Conference Proceeding
JOHNY, J., OFFICER, S., FUNG, W. K. and PRABHU, R. 2019. Fluorescence lifetime assisted enhanced security feature in travel documents for border control and security applications. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 3rd Counterterrorism, crime fighting, forensics, and surveillance technologies conference 2019: co-located with the Society of Photo-Optical Instrumentation Engineers (SPIE) Security and defence 2019 conference, 9-12 September 2019, Strasbourg, France. Proceedings of the SPIE, 11166. Bellingham, WA: SPIE [online], article ID 1116608. Available from: https://doi.org/10.1117/12.2535742

Border management and security challenges are increasing considerably in recent years. One of the major concerns is counterfeiting and fraudulent use of identity and other travel documents for crossing border controls. This poses serious threats and... Read More about Fluorescence lifetime assisted enhanced security feature in travel documents for border control and security applications..

Investigations towards the development of a novel multimodal fibre optic sensor for oil and gas applications. (2019)
Thesis
JOHNY, J. 2019. Investigations towards the development of a novel multimodal fibre optic sensor for oil and gas applications. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Oil and gas (O&G) explorations are moving into deeper zones of earth, causing serious safety concerns. Hence, sensing of critical multiple parameters like high pressure, high temperature (HPHT), chemicals, etc., are required at longer distances. Trad... Read More about Investigations towards the development of a novel multimodal fibre optic sensor for oil and gas applications..

Optical fibre-based minimally-invasive blood glucose monitoring system. (2018)
Thesis
VISWAMBARAN, V. 2018. Optical fibre-based minimally-invasive blood glucose monitoring system. Robert Gordon University [online], MRes thesis. Available from: https://openair.rgu.ac.uk

Obesity and changing lifestyles have made diabetes mellitus one of the world’s foremost metabolic syndromes, affecting the lives of around 380 million people worldwide. Although considered incurable, adverse effects of diabetes can be controlled by t... Read More about Optical fibre-based minimally-invasive blood glucose monitoring system..

Feasibility analysis of unique ID (UID) generation for personal authentication of valuable documents using dorsal hand vein pattern. (2018)
Conference Proceeding
AMBADIYIL, S., JAYARAIAN, R., PILLAI, V.P.M. and PRABHU, R. 2018. Feasibility analysis of unique ID (UID) generation for personal authentication of valuable documents using dorsal hand vein pattern. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 2nd Counterterrorism, crime fighting, forensics and surveillance technologies 2018 conference: co-located with the Society of Photo-optical Instrumentation Engineers (SPIE) Security and defence conference 2018, 10-13 September 2018, Berlin, Germany. Proceedings of the SPIE, 10802. Bellingham, WA: SPIE [online], article ID 108020H. Available from: https://doi.org/10.1117/12.2325346

Reliable personal authentication is a critical and vital obligation to the security in all the real-world applications. Nevertheless, biometric features are effectively used for the personal authentication, in some cases the criminal impersonation is... Read More about Feasibility analysis of unique ID (UID) generation for personal authentication of valuable documents using dorsal hand vein pattern..

Waveguide-based machine readable fluorescence security feature for border control and security applications. (2018)
Conference Proceeding
JOHNY, J., BHAVSAR, K., OFFICER, S., ADAMS, M., PRABHU, R. 2018. Waveguide-based machine readable fluorescence security feature for border control and security applications. In Bouma, H., Prabhu, R., Stokes, R.J. and Yitzhaky, Y. (eds.) Proceedings of the 2nd Counterterrorism, crime fighting, forensics and surveillance technologies 2018 conference: co-located with the Society of Photo-optical Instrumentation Engineers (SPIE) Security and defence conference 2018, 10-13 September 2018, Berlin, Germany. Proceedings of the (SPIE), 10802. Bellingham, WA: SPIE [online], article ID 1080209. Available from: https://doi.org/10.1117/12.2501974

Border security challenges and immigration issues are increasing considerably in recent years. Counterfeiting and fraudulent use of identity and other travel documents are posing serious threats and safety concerns worldwide, ever since the advanceme... Read More about Waveguide-based machine readable fluorescence security feature for border control and security applications..

Cross sensitivity analysis of optical fibre-based sensing for high pressure, high temperature measurement in oil and gas applications. (2018)
Thesis
AMOS, S.U. 2018. Cross sensitivity analysis of optical fibre-based sensing for high pressure, high temperature measurement in oil and gas applications. Robert Gordon University, PhD thesis.

Measurements of physical parameters like pressure, temperature, flow rate, vibrations and displacement in harsh environment are often desired in the oil and gas industry. Pressure and temperature are the most important parameters among them. Changes... Read More about Cross sensitivity analysis of optical fibre-based sensing for high pressure, high temperature measurement in oil and gas applications..

Investigations on the development of a novel hybrid sensor for environmental monitoring applications. (2016)
Thesis
BHAVSAR, K. 2016. Investigations on the development of a novel hybrid sensor for environmental monitoring applications. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1677500

Heavy metal toxicity is a major environmental problem world-wide. Increased spreading and high concentration levels of the toxic heavy metals in water environments have posed a severe threat to human health and the ecosystem. Over the years, to impro... Read More about Investigations on the development of a novel hybrid sensor for environmental monitoring applications..

Development of formation damage models for oilfield polymers. (2015)
Thesis
IDAHOSA, P.E.G. 2015. Development of formation damage models for oilfield polymers. Robert Gordon University, PhD thesis.

Polymers are among the most important of various oilfield chemicals and are used for a variety of applications in the oil and gas industry (OGI), including: water and gas shutoff; drilling mud viscosity modification; filtration loss control (FLC); sw... Read More about Development of formation damage models for oilfield polymers..

Photocatalytic destruction of volatile organic compounds from the oil and gas industry. (2014)
Thesis
TOKODE, O. 2014. Photocatalytic destruction of volatile organic compounds from the oil and gas industry. Robert Gordon University, PhD thesis.

Heterogeneous photocatalysis is an advanced oxidation technology widely applied in environmental remediation processes. It is a relatively safe and affordable technology with a low impact on the environment, and has found applications in a number of... Read More about Photocatalytic destruction of volatile organic compounds from the oil and gas industry..

Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water. (2013)
Thesis
CHANDU, V.C.P 2013. Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water. Robert Gordon University, PhD thesis.

The widespread distribution of cyanobacteria and their toxic effects on humans has become a major concern for researchers. Cyanobacteria are a group of oxygenic phototrophic bacteria that exhibit an enormous diversity in shapes and arrangements and o... Read More about Investigation of novel methods to remove the cyanotoxin, Cylindrospermopsin, from drinking water..

Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. (2012)
Thesis
PESTANA, C.J. 2012. Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. Robert Gordon University, PhD thesis.

Cyanobacterial secondary metabolites can cause serious harm to animals and humans (cyanotoxins) and can have a major financial impact on the potable water and aquaculture industries (taste and odour compounds). Understanding the factors that affect c... Read More about Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems..