Despite the changing content of engineering courses, it is still essential for the student to master a substantial body of fixed basic concepts; there is little point in changing…
Abstract
Despite the changing content of engineering courses, it is still essential for the student to master a substantial body of fixed basic concepts; there is little point in changing the methods of teaching these merely for the sake of doing so.
A proper understanding of the principles of the spark ignition engine must include an appreciation of the effect of variation in compression ratio; a practical difficulty in…
Abstract
A proper understanding of the principles of the spark ignition engine must include an appreciation of the effect of variation in compression ratio; a practical difficulty in achieving this result has for long been the very high cost of variable compression ratio engines, most of which have been primarily intended for industrial use in oil company laboratories and only incidentally for instruction.
‘Tertiary Education’, Industrial Training and the ATTI ‘A comprehensive school system implies a comprehensive system of post‐school education — tertiary education, not just higher…
Abstract
‘Tertiary Education’, Industrial Training and the ATTI ‘A comprehensive school system implies a comprehensive system of post‐school education — tertiary education, not just higher education in its present sense’. This was how Mr E. Robinson of Enfield College of Technology introduced the priority motion on ‘The Future of Higher Education’ at the Association of Teachers in Technical Institutions recent 56th Annual Conference at Whitley Bay.
Henriette Lundgren, Dimitrios Papanagnou, Casey Morrone, Urvashi Vaid, Ridhima Ghei, Abagayle Bierowski, Karen E. Watkins and Victoria J. Marsick
This study aimed at rethinking ways in which educators from different fields can collaborate to respond to the rapidly evolving demands of health professions education (HPE). The…
Abstract
Purpose
This study aimed at rethinking ways in which educators from different fields can collaborate to respond to the rapidly evolving demands of health professions education (HPE). The goal was to investigate how a research-to-resources approach can be applied to engage in knowledge translation (KT) of research findings for the benefit of introducing medical students to uncertainty in the clinical learning environment.
Design/methodology/approach
An interdisciplinary team of medical educators, human resource development (HRD) scholars and emergency medicine fellows engaged in iterative cycles of action research (AR) to develop, pilot and refine case-based learning resources on clinical uncertainty. The team leveraged prior research on physicians’ decision-making during COVID-19, experimented with generative AI tools, and collected feedback from medical students to guide resource development.
Findings
The findings of this study are twofold. On the one hand, the authors reflect on the lessons learned of developing case-based learning with the help of generative AI. While student feedback indicated that the case helped normalize and process experiences with uncertainty, key challenges included adapting research data to create relevant, sustainable learning resources and designing effective discussion prompts. On the other hand, the authors provide insights into the opportunities and challenges of our interdisciplinary collaboration. The authors show that knowledge utilization is not simple, but complex, and that more work needs to be done to effectively disseminate resources as part of the desired uncertainty curriculum.
Practical implications
This study attempts to apply a KT framework for bridging the research-practice gap in HPE through interdisciplinary collaboration and AR. It provides lessons learned for developing case-based curricula on complex topics like uncertainty. The findings highlight the need for adaptive KT processes when dealing with rapidly evolving healthcare contexts.
Originality/value
This paper offers a novel example of research-to-resource KT in medical education, integrating perspectives from HRD and leveraging emerging technologies. It contributes to understanding how interdisciplinary teams can collaborate to create timely, evidence-based educational resources for navigating uncertainty in professional practice. The study also provides insights into the challenges and opportunities of translating complex research findings into practical learning tools to tackle real-world challenges in HPE.
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IN announcing the new High Frequency Friction Machine TE77, designed for the rapid assessment of lubricant performance, Cameron‐Plint Tribology Ltd put forward cogent reasons for…
Abstract
IN announcing the new High Frequency Friction Machine TE77, designed for the rapid assessment of lubricant performance, Cameron‐Plint Tribology Ltd put forward cogent reasons for the development of this equipment.
CAMERON‐PLINT Tribology Ltd, the emergent company from an association between Professor Alastair Cameron, head of the Tribology Section at Imperial College, London, until his…
Abstract
CAMERON‐PLINT Tribology Ltd, the emergent company from an association between Professor Alastair Cameron, head of the Tribology Section at Imperial College, London, until his recent retirement, and Plint & Partners Ltd, of Woking, is making good headway.
While it is fairly easy to design apparatus that will demonstrate heat transfer phenomena in a general way it is much more difficult to verify quantitively the fundamental laws…
Abstract
While it is fairly easy to design apparatus that will demonstrate heat transfer phenomena in a general way it is much more difficult to verify quantitively the fundamental laws. After a long period of development in co‐operation with a leading university engineering department, Plint & Partners Limited have brought out an apparatus which meets the more exacting requirements of the phenomena of radiation and natural convection.
J. Paulo Davim and Rosária Cardoso
PEEK is an abbreviation for polyetheretherketone, a high performance engineering semicrystalline thermoplastic. This material can operate at higher temperatures and has excellent…
Abstract
Purpose
PEEK is an abbreviation for polyetheretherketone, a high performance engineering semicrystalline thermoplastic. This material can operate at higher temperatures and has excellent friction and wear properties, which are optimised in the specially formulated tribological grade PEEK‐CF30. The purpose of this work was to develop a thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair, in dry sliding, related to friction and wear with the pv factor, the temperature and the sliding distance, using multiple regression analysis (MRA).
Design/methodology/approach
This paper presents a new thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair, in dry sliding, using MRA. A plan of experiments was performed on a pin‐on‐disc machine PLINT TE67HT®.
Findings
The objective was to establish a thermo‐mechanical model to predict the PEEK‐CF30 behaviour related to friction and wear with the pv factor (product of apparent pressure of contact and sliding velocity), the temperature and the sliding distance. This model was obtained by multiple linear regression. Finally, confirmation tests were performed to make a comparison between the obtained results from the mentioned model and the experimental results.
Originality/value
The novel element of this paper is the application of design experiments and MRA in tribological model behaviour in an advanced material – PEEK‐CF 30.
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The purpose of this paper is to describe very reproducible boundary lubrication tests, conducted as part of design of experiment (DOE) to study the behavior of fluorinated…
Abstract
Purpose
The purpose of this paper is to describe very reproducible boundary lubrication tests, conducted as part of design of experiment (DOE) to study the behavior of fluorinated catalyst mixed with polutetrafluoroethylene or Teflon (PTFE) in developing environmentally friendly (reduced P and S) anti‐wear additives for future engine oil formulations. The paper presents both the statistical and experimental solution to the fluorinated interactions in fully formulated (F‐fully formulated) and plain ZDDP (F‐plain) oils.
Design/methodology/approach
The wear performance of fluorinated additive in combination with conventional commercial oil and ZDDP plain oil were investigated using DOE software. Several chemistry combinations were prepared and tested under extreme boundary lubrication (385 N with maximum Hertzian contact pressure of 2.72 GPa). Wear and frictional properties were evaluated using DOE and the interactions of fluorinated mix with minimum phosphorus were studied and compared with respect to fully formulated and plain ZDDP oils.
Findings
The optimized desirability shows the best condition that leads to more consistency in the breakdown of the tribofilm for a fixed contact load and fixed amount of fully formulated ZDDP oil. The influence of catalyst and PTFE fluorinated mix were examined. Scanning electron microscopy with chemistry analysis was developed. Hardness of the tribofilms, X‐ray of the wear track and Auger spectroscopy confirm the present of fluorine and phosphorus.
Originality/value
To ensure the reliability of the model, two original tests were conducted on the fully formulated and plain oil with minimum fluorinated mix.
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Gabi N Nehme and Saeed Ghalambor
This paper aims to focus on the topics of phosphorus (P) and sulfur (S) in engine oil. Very reproducible boundary lubrication tests were conducted as part of Design of Experiments…
Abstract
Purpose
This paper aims to focus on the topics of phosphorus (P) and sulfur (S) in engine oil. Very reproducible boundary lubrication tests were conducted as part of Design of Experiments software to study the behavior of fluorinated catalyst iron fluoride (FeF3) and polytetrafluoroethylene (PTFE) in the development of environment-friendly (reduced P and S) anti-wear additives for future engine oil formulations. Multi-component fully formulated oils were used with and without the addition of PTFE and fluorinated catalyst to characterize and analyze their performance.
Design/methodology/approach
A boundary lubrication protocol was used in the DOE tests to study their tribological behavior. Lubricant additives like PTFE and FeF3 catalyst were used at different concentrations to investigate the wear resistance and the time for a full breakdown under extreme loading conditions. Experiments indicated that new sub-micron FeF3 catalyst plays an important role in preventing the breakdown of the tribofilm.
Findings
This paper explores the effect of PTFE and FeF3 catalyst on the performance of fully formulated engine oils. The purpose was to develop equations for minimum wear volume and maximum time for full breakdown. Emphasis was, therefore, given to conditions where the additives were working effectively for minimizing zinc dialkyl dithio phosphate (P per cent). Lubricating oils are normally multi-component additivated systems. They contain different additives such as viscosity improvers, detergents, dispersants and antioxidants. It is known that these additives interact at the surface, affecting the function of the lubricating oil. Therefore, it is important to note that the performance with PTFE and FeF3 catalyst was significantly improved when compared to fully formulated commercial oils used alone.
Originality/value
Lubricating oils are normally multi-component additivated systems. They contain different additives such as viscosity improvers, detergents, dispersants and antioxidants. It is known that these additives interact at the surface, affecting the function of the lubricating oil. Therefore, it is important to note that the performance with PTFE and FeF3 catalyst was significantly improved when compared to fully formulated commercial oils used alone.