12 results on '"Kirwan, Kerry"'
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2. Report on existing Research and Innovation strategies
- Author
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Beck, Sigridur, Brandt, Daniel, Kirwan, Kerry, Hine, Harriet, Vallduví, Enric, Martin Garcia, Eva, Vidal, Frederic, Van Loon, Tania, Mrak-Jamnik, Staska, and Rataj, Simona
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ComputingMilieux_GENERAL - Abstract
Report containing an analysis of existing Research and Innovation strategies and a definition of EUTOPIA- TRAIN themes and common research agenda, Deliverable 1.1 for EUTOPIA-TRAIN. Deliverable not yet approved by the European Commission.
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- 2022
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3. There and Back Again: the significance of far-travel and far-travellers in the Icelandic sagas
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KIRWAN, KERRY MAREE
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Historical studies not elsewhere classified - Abstract
The Icelandic sagas describe Icelanders travelling throughout the medieval world. But their stories were also written down during a time of unrest, when Icelandic society was under great pressure from Norwegian political influence. The images of these far-travellers – like the men who went east to serve foreign kings, and the men and women who sailed the dangerous seas to the west, to discover and colonise new lands – can reveal aspects of author intent and values. This thesis explains how stories of far-travellers and journeys provide a literary response by their authors, articulating their sense of an emerging Icelandic identity.
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- 2021
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4. Recovery of ammonia from wastewater through chemical precipitation
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Bianchi, Lavinia, Kirwan, Kerry, Alibardi, Luca, Pidou, Marc, and Coles, Stuart R.
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Struvite thermal decomposition ,Kinetic mechanism ,QE ,Sruvite precipitation ,QD ,Wastewater treatment ,Ammonia recovery - Abstract
Chemical precipitation is a consolidated technique applied in wastewater treatment to remove and recover phosphorous and ammonium that remain in the effluent after the anaerobic digestion treatment. The precipitate is magnesium ammonium phosphate hexahydrate (MgNH4PO4·6H2O), also known as struvite, and it is sold as a slow-release fertiliser. However, the value of struvite is quite low and has a limited market. Furthermore, it precipitates with heavy metals and other impurities that need to be removed to make the fertiliser commercially viable. This study looked at the thermal decomposition of struvite to recover added value products and recycle the magnesium for further precipitation. A kinetic study was carried out to understand the mechanism of decomposition and the formation of the different solid phases, which is fundamental for the design and optimisation of the technology. The thermogravimetric study confirmed that thermal decomposition is possible, but ammonia could not be completely released below 250 °C. The thermal analysis also led to the determination of the energy required for the decomposition, found to be 1.87 kJ g−1, which also includes the evaporation of water and ammonia. The kinetic study through the isoconversional method showed the presence of two major reactions, and the model-fitting approach identified the diffusion model as the best fit for the first reaction. The activation energy of the first reaction found with this method was 0.24 kJ g−1, comparable with the data obtained from the isoconversional method. The two-stage decomposition reactions were proposed, and the final calcination product was confirmed as magnesium pyrophosphate, which could be used in agriculture or dissolved in diluted mineral acids solution to separate the phosphate from the magnesium.\ud \ud
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- 2020
5. Study of combustion performance of biodiesel for potential application in motorsport
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Wood, Benjamin M., Kirwan, Kerry, Maggs, Steven, Meredith, James, and Coles, Stuart R.
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High performance ,TL ,Motorsport ,Renewable Energy, Sustainability and the Environment ,Environmental Science(all) ,Strategy and Management ,Biodiesel ,Industrial and Manufacturing Engineering - Abstract
The variability in viscosity and combustion quality has been identified from the literature as a barrier to the use of biodiesel fuels in motorsport. These parameters can affect performance, emissions and fuel consumption. Diesel engines have had recent success in endurance and touring car racing; biodiesel is an opportunity to increase the sustainability of this emerging area of motorsport.\ud \ud Methyl esters from rapeseed, soybean and sunflower oils were tested alongside EN 590 diesel fuel. Variations in fuel consumption, output torque and power were observed between the fuels. Further tests were carried out on an automotive diesel engine to evaluate the in-cylinder pressures for soybean B100, beef tallow B50 and EN 590 to gain understanding of the reasons behind the performance differences noted in the initial tests.\ud \ud Retarding the start of injection for B50 and B100 biodiesel improved the peak torque by up to 5% enabling the production of equal torque at the same engine speed when compared to EN 590 but with lower peak in-cylinder pressure and a shorter ignition delay. The application of this to motorsport is the potential to achieve higher peak power outputs; the shorter ignition delay and more rapid combustion has the potential to be used to raise the maximum engine speed and therefore the peak power output of diesel engines for motorsport.
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- 2015
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6. Analysis of the potentials of multi criteria decision analysis methods to conduct sustainability assessment
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Cinelli, Marco, Coles, Stuart, and Kirwan, Kerry
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Decision Sciences(all) ,T1 ,Ecology ,Sustainability assessment ,Multi-criteria-decision-analysis ,Data integration ,Outranking methods ,Decision rules ,DRSA ,QA ,Ecology, Evolution, Behavior and Systematics - Abstract
Sustainability assessments require the management of a wide variety of information types, parameters and uncertainties. Multi criteriadecision analysis(MCDA) has been regarded as a suitable set of methods to perform sustainability evaluations as a result of its flexibility and the possibility of facilitating the dialogue between stakeholders, analysts and scientists. However, it has been reported that researchers do not usually properly define the reasons for choosing a certain MCDA method instead of another. Familiarity and affinity with a certain approach seem to be the drivers for the choice of a certain procedure. This reviewpaperpresents the performance of five MCDA methods (i.e. MAUT, AHP, PROMETHEE, ELECTRE and DRSA) in respect to ten crucial criteria that sustainability assessments tools should satisfy, among which are a life cycle perspective, thresholds and uncertainty management, software support and ease of use. The review shows that MAUT and AHP are fairly simple to understand and have good software support, but they are cognitively demanding for the decision makers, and can only embrace a weak sustainability perspective as trade-offs are the norm. Mixed information and uncertainty can be managed by all the methods, while robust results can only be obtained with MAUT. ELECTRE, PROMETHEE and DRSA are non-compensatory approaches which consent to use a strong sustainability concept, accept a variety of thresholds, but suffer from rank reversal. DRSA is less demanding in terms of preference elicitation, is very easy to understand and provides a straightforward set of decision rules expressed in the form of elementary “if … then …” conditions. Dedicated software is available for all the approaches with a medium to wide range of results capability representation. DRSA emerges as the easiest method, followed by AHP, PROMETHEE and MAUT, while ELECTRE is regarded as fairly difficult. Overall, the analysis has shown that most of the requirements are satisfied by the MCDA methods (although to different extents) with the exclusion of management of mixed data types and adoption of life cycle perspective which are covered by all the considered approaches.
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- 2014
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7. THEGREENING OF ‘GREEN’ TECHNOLOGY: ADOPTION OF BIO-PLASTIC PLA
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Arjunan, Subramanian, Moir, Christopher, Kirwan, Kerry, and Pink, David
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Adoption ,Sustainable materials ,Environmental Economics and Policy ,Polylactic acid ,Bioplastics ,Market failures - Abstract
Growing concerns over the impact of rising commodity prices on the global food system has led to a vigorous public debate over the use of plant materials as fuel alternatives. Despite this controversy, several bio-based technologies are being promoted as sustainable materials. This paper examines one such technology - Bio-plastics Polylactic Acid - that is being adopted at a rate that is higher than convention plastics, although energy efficient this technology is still not cost effective. High adoption is most likely driven by disincentives created by end-use packaging legislations and also shortterm concerns for the environment. Two important log-term concerns that are highlighted are divergence between technical and economic superiority and market failure. Thus the main drivers of adoption in the long-run are expected to be declining production cost, environmental legislation concerning waste disposal and composting, and consumer attitudes towards environmental impact.
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- 2010
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8. Social-psychological aspects of domestic renewable energy: A study of low-income tenants responses to solar photovoltaics
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Kirwan, Kerry Louise
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- 2007
9. A comprehensive review of full cost accounting methods and their applicability to the automotive industry
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Jasinski, Dominik, Meredith, James O., and Kirwan, Kerry
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Full cost accounting ,Sustainability ,TL ,Renewable Energy, Sustainability and the Environment ,Environmental Science(all) ,Sustainability assessment model ,Strategy and Management ,Comprehensive review ,Industrial and Manufacturing Engineering ,Automotive industry - Abstract
Full cost accounting has been applied in many industrial settings that include the oil and gas, energy, chemical and waste management industries. Presently, it is not known how it can be applied in an automotive industry context. Therefore, the objective of this paper is to review existing full cost accounting methods and identify an appropriate approach for the automotive sector. This literature review of 4381 papers extracted ten full cost accounting methods with a diverse level of development and consistency in application. Based on a careful examination and critical analysis of each approach and existing automotive sustainability measures, the Sustainability Assessment Model developed by British Petroleum and Aberdeen University has been proposed as a well-developed and potentially practical tool for automotive applications. The Sustainability Assessment Model can be used by both academics and practitioners to translate a range of conflicting sustainability information into a monetary unit score. This is an effective way of communicating trade-offs and outcomes for complex and multi-disciplinary sustainable decisions in the automotive sector. It measures a broad range of economic, environmental, resource and social effects (internal and external), which is currently lacking in existing automotive systems. Its other strengths are the ability to provide both monetary and physical metrics for sustainability assessment, its flexibility and the ability to combine multiple sustainability dimensions. Furthermore, this paper provides helpful clues for researchers interested in exploring full cost accounting in the future by reviewing, analysing and synthesising the broad range of relevant sources from diverse fields in this topic area.
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10. Robustness analysis of a green chemistry-based model for the classification of silver nanoparticles synthesis processes
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Cinelli, Marco, Coles, Stuart R., Nadagouda, Mallikarjuna N., Błaszczyńskid, Jerzy, Słowiński, Roman, Varma, Rajender S., and Kirwan, Kerry
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Economics ,Green nanotechnology ,ELECTRE ,Robustness analysis ,Dominance-based rough set approach ,7. Clean energy ,Multiple criteria decision aiding - Abstract
This paper proposes a robustness analysis based on Multiple Criteria Decision Aiding (MCDA). The ensuing model was used to assess the implementation of green chemistry principles in the synthesis of silver nanoparticles. Its recommendations were also compared to an earlier developed model for the same purpose to investigate concordance between the models and potential decision support synergies. A three-phase procedure was adopted to achieve the research objectives. Firstly, an ordinal ranking of the evaluation criteria used to characterize the implementation of green chemistry principles was identified through relative ranking analysis. Secondly, a structured selection process for an MCDA classification method was conducted, which ensued in the identification of Stochastic Multi-Criteria Acceptability Analysis (SMAA). Lastly, the agreement of the classifications by the two MCDA models and the resulting synergistic role of decision recommendations were studied. This comparison showed that the results of the two models agree between 76% and 93% of the simulation set-ups and it confirmed that different MCDA models provide a more inclusive and transparent set of recommendations. This integrative research confirmed the beneficial complementary use of MCDA methods to aid responsible development of nanosynthesis, by accounting for multiple objectives and helping communication of complex information in a comprehensive and traceable format, suitable for stakeholders and/or decision-makers with diverse backgrounds., Journal of Cleaner Production, 162, ISSN:0959-6526
11. Alternative glazing for automotive vehicles: executive summary
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Kirwan, Kerry
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TL - Abstract
The first approach utilises a thin film of acrylic that is moulded onto the outside of a polycarbonate substrate. It was found that the gate of the injection mould cavity must be of uniform cross section otherwise local shear heating can occur and melt the acrylic film. The injection gate must also be located entirely on one side of the mould cavity otherwise the film is punctured by the molten polycarbonate and free to float within the cavity. Any mixing of the two materials will lead to opaque components due the difference in the refractive indices. The film was found to improve the UV resistance of any component, acting as a protective buffer for the polycarbonate.\ud \ud A new variety of hardcoat was applied to film-backed samples to impart abrasion resistance and samples were found to outperform commercially available alternatives under recognised laboratory conditions. The film-backed samples also exhibited excellent impact resistance when impacted upon the film-face. However, similar components failed at extremely low energy levels when impacted from the non-film face because flaws in the acrylic film caused cracks to be initiated when the film was placed into tension. The level of adhesion between the film and the polycarbonate has been found to be critical and if the failure mechanism could be guaranteed, then intruder resistant glazing that could be broken from the inside in an emergency becomes a possibility. Such a product would address the identified consumer concern of being trapped in a vehicle.\ud \ud The second approach utilises simultaneous dual injection moulding (2K), which has previously only been used to manufacture coloured components. A successful feasibility study was undertaken to demonstrate the concept of producing transparent components via such a process. This showed that much greater control is required for transparent applications otherwise the skin and core materials mix and opaque components are produced. The generally accepted academic principles associated with the process have been shown to be too simplistic and cannot be relied upon to guarantee good results. The ratio of viscosities of the skin and core materials appear to be more dominant than previously thought and the relative injection speeds of the two materials has a direct influence upon interfacial mixing and haze generation. It was also found that haze could be avoided if the refractive indices of the skin and core material were matched to within ±0.002, but this is impractical.\ud \ud A third area of research examined the feasibility of introducing structured glass fibres weaves into transparent components to improve rigidity. The study resulted in the construction of a transparent glass fibre pre-preg that could be moulded onto the outer surface of polycarbonate components. Flexural tests revealed that a single layer of glass fibre increased the flexural modulus of test samples by a factor of 3, whilst transparency and clarity were retained. Two patents have been filed as a direct result of this work.
12. Phytoremediation combined with biorefinery on the example of two agricultural crops grown on Ni soil and degraded by P. chrysosporium
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Sotenko, Maria, Coles, Stuart, Barker, Guy, Song, Lijiang, Jiang, Ying, Phil Longhurst, Romanova, Tamara, Shuvaeva, Olga, and Kirwan, Kerry
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biorefinery ,nickel ,Phanerochaete chrysosporium ,lignocellulose degradation ,metal accumulating plants ,fungi ,food and beverages ,phytoremediation ,complex mixtures - Abstract
During the last few decades, phytoremediation process has attracted much attention because of the growing concerns about the deteriorating quality of soil caused by anthropogenic activities. Here, a tandem phytoremediation/biorefinery process was proposed as a way to turn phytoremediation into a viable commercial method by producing valuable chemicals in addition to cleaned soil. Two agricultural plants (Sinapis alba and Helianthus annuus) were grown in moderately contaminated soil with ca. 100 ppm of Ni and further degraded by a fungal lignin degrader - Phanerochaete chrysosporium. Several parameters have been studied: the viability of plants, biomass yield and their accumulating and remediating potentials. Further down-stream processing showed that up to 80% of Ni can be easily extracted from contaminated biomass by aqueous extraction at mild conditions. Finally, it was demonstrated that the grown onto contaminated soil plants can be degraded by Phanerochaete chrysosporium and the effect of nickel and biomass pre-treatment on the solid state fermentation was studied. The proposed and studied in this work methodology can pave the way to successful commercialization of the phytoremediation process in the near future
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