Professor Winifred Ijomah

Design, Manufacturing and Engineering Management

Personal statement

I am  Professor in the Department for Design, Manufacture and Engineering Management, (DMEM) and initiator and Technical director of the Scottish Institite for Remanufacture (SIR), a pan-Scotland expertise hub for Remanufacture hosted by the University of Strathclyde.  I gained a PhD in Remanufacturing from the University of Plymouth in 2002, and worked at the Department of Mechanical Engineering, University of Bath, from 2004 to 2007. I also hold a masters degree in Advanced Manufacturing Management and a bachelors degree in Industrial Engineering.

I joined the University of Strathclyde as a lecturer in 2007 and was promoted to senior lecturer in 2011, to reader in 2017 then to professor in 2020. My research focuses on sustainable design and manufacturing, and to date has focussed on product end-of-life, particularly on remanufacturing. Here my research spans both product and process design with a view to enhancing remanufacturing potential.

Remanufacturing is a process of returning a used product to at least OEM original performance specification from the customer's perspective and giving the resultant product a warranty that is at least equal to that of a newly manufactured equivalent. Its key significance is that it harms the environment less than conventional manufacturing and can simultaneously have economic, environmental and societal benefits.

I initiated and lead the Remanufacturing Research Group at the University of Strathclyde, and have featured in more than 100 journal articles, book chapters and conference proceedings. I’m also the founder of the Springer Journal of Remanufacturing and was its Editor-in-Chief for 10 years-from its launch in 2011 until 2020.


Non-destructive testing of composite fibre materials with hyperspectral imaging – evaluative studies in the EU H2020 FibreEUse project
Yan Yijun, Ren Jinchang, Zhao Huan, Windmill James FC, Ijomah Winifred, Wit Jesper De, Freeden Justus Von
IEEE Transactions on Instrumentation and Measurement Vol 71, pp. 1-13 (2022)
Remanufacturing of single-use medical devices : a case study on cross-border collaboration between the UK and Nigeria
Oturu Kingsley, Ijomah Winifred, Orr Andrew, Verpeaux Laura, Broadfoot Ben, Clark Stuart, Devine Ryan
Health and Technology Vol 12, pp. 273-283 (2022)
Exploring the application of lean best practices in remanufacturing : empirical insights into the benefits and barriers
Pawlik Elzbieta, Ijomah Winifred, Corney Jonathan, Powell Daryl
Sustainability Vol 14 (2022)
Investigation of remanufacturing technologies for medical equipment in the UK and context in which technology can be exported in the developing world
Oturu Kingsley, Ijomah WL, Broeksmit Alexander, Hernandez Reig Daniel, Millar Matthew, Peacock Craig, Rodger Jacob
Journal of Remanufacturing Vol 11, pp. 227-242 (2021)
Bi-objective optimisation of remanufacturing decisions with component commonality under different reworking scenarios
Sitcharangsie Sakraan, Wong T C, Ijomah Winifred
International Journal of Computer Integrated Manufacturing Vol 34, pp. 1086-1107 (2021)
Design for automated inspection in remanufacturing : a discrete event simulation for process improvement
Nwankpa Chigozie Enyinna, Ijomah Winifred, Gachagan Anthony
Cleaner Engineering and Technology Vol 4 (2021)

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My teaching interests primarily focus on the theory and practical implementation of sustainable design and manufacturing for the MEng and MSc courses in Design, Manufacture and Engineering Management. I am also involved in teaching design, design and engineering applications, mechatronics design and applications, and advanced materials and production technology. I also supervise a number of students in individual projects.

Research interests

My research is interdisciplinary, spanning across engineering, business, to the social and applied sciences. The long term goal of my cross-disciplinary research is to continue furthering knowledge in sustainable production, specialising in developing concepts, tools and techniques to facilitate sustainable design and manufacture through remanufacture. Remanufacturing has recently become globally critical because of its great potential to address environmental concerns (need to reduce waste during the material extraction and manufacturing processes), legislation (international agreement to reduce products’ and manufacturing processes’ environmental impacts) and economics (remanufacture is often a quality and cost effective option). However, there is a paucity of remanufacturing understanding, information, publications, as well as tools and techniques. I currently lead the UK's largest remanufacturing research group, specialising in holistic, interdisciplinary, practitioner-based research. In the long term I intend to further develop, and build the capacity, of my research team in the area of sustainable design and manufacture through remanufacture.

Professional activities

International Conference on Remanufacturing 2019
International Conference on Remanufacturing ICoR 2019
Keynote speaker
International Conference on Remanufacturing 2019
Royal Philosophical Society of Glasgow
Prof. Akinwale Coker
Taiwo Hammed

More professional activities


Remanufacture: A Strategy to Enable Affordable Quality Healthcare in Developing Countries (International Collaboration Award)
Ijomah, Winifred (Principal Investigator)
Remanufacture: A Strategy to Enable Affordable Quality Healthcare in Developing Countries (International Collaboration Award)
03-Jan-2018 - 02-Jan-2022
Large scale demonstration of new circular economy value-chains based on the reuse of end-of-life: FiberEUse (H2020-IND-CE-2016-17)
Ijomah, Winifred (Principal Investigator) Ren, Jinchang (Co-investigator) Rentizelas, Athanasios (Co-investigator) Windmill, James (Co-investigator) Xirouchakis, Paul (Co-investigator)
Large scale demonstration of the techno-economical feasibility of circular economy business cases based on the reuse of end-of-life fiber reinforced composites in new value chains
01-Jan-2017 - 31-Jan-2021
Doctoral Training Partnership (DTP 2016-2017 University of Strathclyde) | RIZOVA, Mirena Isaeva
Wong, Andy TC (Principal Investigator) Ijomah, Winifred (Co-investigator) RIZOVA, Mirena Isaeva (Research Co-investigator)
01-Jan-2016 - 01-Jan-2020
Investigation of a Smart and Low-Cost Autonomous System for Early Detection and Monitoring of Mild Cognitive Impairment in the Elderly
Yang, Erfu (Principal Investigator) Li, David (Co-investigator) Ijomah, Winifred (Co-investigator) Fei, Zixiang (Post Grad Student)
As the number of the elderly people increase, there is an urgent need for the development of advanced assistative technology to ensure their mobility and independent living by early detection and monitoring of the MCI in the low-income community. The main objectives of this project are described as follows:
(1) To develop novel algorithms for facial recognition and body movement analyses to early detect and monitor the MCI condition in the elderly.
(2) To propose a smart tool that can compute the attentional focus of the elderly and determine communication counterparts.
(3) To investigate a decision making tool to manage and integrate all the sensory resources of the mobile devices for efficiently executing multiple tasks.
(1) To improve the performance and scalability of the developed system for the purpose of collective care in the low-income community.
(2) To widen the scope of the applicability of the developed system.
(3) To lay the foundation for improving the interaction between the elderly and other assistive healthcare device/systems in different environments and chronic conditions.
(4) To associate healthcare applications with smart cities, robotics and autonomous systems, signal processing, computer vision and machine learning communities.
01-Jan-2016 - 30-Jan-2019
iNEED (including Nondestructive Evaluation in Engineered Design)
Mulholland, Anthony (Principal Investigator) Ijomah, Winifred (Co-investigator) Illes, Tibor (Co-investigator) Windmill, James (Co-investigator)
"Many high-value manufactured components that are made in the UK are used in safety critical structures such as nuclear plants and aircraft engines. Such components must be checked periodically for the presence of flaws and other precursors to the component failing. This is performed at various stages in the lifetime of the component: at the manufacturing stage, periodically while the component is in service, and to assess the component for remanufacturing at the end of its lifetime.

Components must be checked non-destructively, which is challenging; normally the component's design is not optimised to maximise the probability of detecting a flaw using non-destructive evaluation (NDE). The Engineering Design Challenge is to bring NDE considerations into the design engineer's virtual design toolbox.

This project aims to enable design engineers to optimise the design of a given component such that they maximise their ability thereafter to test this component non-destructively for the presence of any flaws. Thus flaw-detectability will used as an additional design criterion. This will also help in remanufacturing as we will be more able to assess the integrity of used components. In this way we will improve society by having safer aircraft, nuclear plants and oil pipelines, improve the environment by having fewer wasted components and using less energy, and improve the UK economy by developing the UK's expertise in these high value sectors.

The most common modality in non-destructive evaluation of these safety critical structures is ultrasound transducer imaging. The Centre for Ultrasonic Engineering (CUE) at the University of Strathclyde has extensive experience in the computer simulation and mathematical modelling of ultrasonic transducers and in their use in NDE. They are ideally placed to develop such a software platform. The University of Strathclyde also hosts the Scottish Institute for Remanufacture (SIR), so the project will utilise the research expertise in this area in conjunction with that of CUE. This project will enable CUE and SIR to form a new alliance with experimental design and tomographic imaging experts from the School of Geosciences at the University of Edinburgh. In the Geosciences, sophisticated imaging methods are used to image the Earth's subsurface, and design theory is developed to optimise imaging array geometries and methods. This combined capability will enable the joint project team to develop a virtual environment where techniques for designing and imaging the internal structures of safety critical components can be assessed and optimised."
01-Jan-2016 - 31-Jan-2021
Autonomous Inspection in Manufacturing & Remanufacturing (AIMaReM)
Pierce, Gareth (Principal Investigator) Dobie, Gordon (Co-investigator) Gachagan, Anthony (Co-investigator) Ijomah, Winifred (Co-investigator) Ion, William (Co-investigator) MacLeod, Charles Norman (Co-investigator)
"High value manufacturing is an essential component of the UK economy, contributing strongly to our economic prosperity and engineering status around the world. The growth in high value manufacturing to support aerospace, nuclear and other high integrity engineering components, has placed huge pressure on the rapid delivery of reliable and high quality Non-Destructive Evaluation (NDE) to inspect these parts. Currently, much inspection of safety critical components (sometimes requiring 100% part inspection) is performed manually, leading to significant bottlenecks associated with the NDE. Existing robots typically follow pre-programmed paths making them unsuitable to handle, inspect and disassemble parts with a significant tolerance or variability. A new end-to-end approach is needed, embracing manufacture, transport through factory, parts alignment, parts tracking, and inspection (both surface form metrology and NDE) with the associated high volume data management feeding into the quality and assurance compliance processes.
Exactly the same process bottlenecks occur when we translate the problem to the regime of Remanufacturing, hence the integrated approach taken through this proposal. Remanufacturing has been identified as being central to the creation of economic growth in the UK and global markets. With supplies of resources and energy limited, the transition to a low carbon economy with strong emphasis on resource efficiency is key to the UK's Industrial Strategy. Remanufacturing can support this transition by achieving significant impact in all industrial sectors through preventing waste, improving resource management, generating sustainable economic growth, increasing productivity and enhancing competitiveness.

AIMaReM (Autonomous Inspection in Manufacturing Remanufacturing) provides a unique combination of data collection, processing and visualisation tools combined with efficient robot path planning and obstacle avoidance, with a focus on manufacturing inspection (NDE and surface form metrology). The project will deliver an automated, systems integrated solution, that will be of direct benefit to the manufacturing sector to allow faster integrated inspection and parts handling, thus saving time, and reducing costs whilst enhancing quality and throughput."
01-Jan-2016 - 31-Jan-2020

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Design, Manufacturing and Engineering Management
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