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2011

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Simulation Of Reverse Flow Heat Recovery For Pharmaceutical Clean Rooms In Colombia, Sandra Juliana Olaya Pineda, John Mcgrory Jan 2011

Simulation Of Reverse Flow Heat Recovery For Pharmaceutical Clean Rooms In Colombia, Sandra Juliana Olaya Pineda, John Mcgrory

Dissertations

This dissertation examines, analyses, implements, and evaluates an innovative software heat transfer model for predicting air-to-air heat (energy) recovered in pharmaceutical drying clean rooms in Colombia. The approach provides a synergy between Reverse Flow Heat Recovery technology and activities for the consumption of this energy, not solely within the process, but throughout the whole pharmaceutical complex (e.g. warehouse, office and alternative processes). This novel integrated modelling tool developed using off the shelf software application such as MS Excel combined with MS Visual programming to calculate psychometric points, mass and enthalpy balances for analysing the operation of heat recovery systems. This …

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Accounting Doctoral Program Rankings Based On Research Productivity Of Program Graduates, Nathaniel M. Stephens, Scott L. Summers, Brady Williams, David A. Wood Jan 2011

Accounting Doctoral Program Rankings Based On Research Productivity Of Program Graduates, Nathaniel M. Stephens, Scott L. Summers, Brady Williams, David A. Wood

Faculty Publications

This paper presents rankings of accounting doctoral programs based on the research productivity of each institution’s graduates in the years immediately following their graduation. We use two time periods for analysis: the first three years after graduation and the first six years after graduation. We extend previous doctoral program ranking literature by expanding rankings of accounting doctoral programs with specific rankings for topical areas (accounting information systems (AIS), audit, financial, managerial, and tax) and methodologies (analytical, archival, and experimental). We show that rankings for topical and methodological areas differ significantly from rankings produced using methodologies that create a singular doctoral …

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Rankings And The Reshaping Of Higher Education:The Battle For World Wide Excellence, Ellen Hazelkorn Jan 2011

Rankings And The Reshaping Of Higher Education:The Battle For World Wide Excellence, Ellen Hazelkorn

Books/Book chapters

No abstract provided.

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Exploring The Map Of Medicine's Potential In Undergraduate Medical Education., Nicola Brennan, Karen Mattick Jan 2011

Exploring The Map Of Medicine's Potential In Undergraduate Medical Education., Nicola Brennan, Karen Mattick

Peninsula Medical School

BACKGROUND: Map of Medicine is a web-based knowledge resource depicting evidence-based pathways of patient care. Recent publications suggest a possible role for the Map of Medicine as a training tool in postgraduate education. AIM: The aim of this study was to explore the potential of the Map of Medicine to enhance undergraduate medical education. METHODS: A mixed-method study including a survey of UK medical schools, and the embedding of the resource at one medical school and the evaluation of its impact. RESULTS: The survey found that only 1 of 23 medical schools was using the Map of Medicine in its …

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You Can't Go Home Again: The Place Of Tradition In "Firefly's" Dystopian-Utopia And Utopian-Distopia, R Brown Jan 2011

You Can't Go Home Again: The Place Of Tradition In "Firefly's" Dystopian-Utopia And Utopian-Distopia, R Brown

School of Art, Design and Architecture

Science fiction has long been a site in which utopian-dystopian visions have been articulated. This paper uses one exemplar of this genre as a springboard into a discussion of the desire for a return to origin and of flawed attempts to impose an image of that origin, with discursions into illustrations drawn from contemporary conditions. In opposition to the hegemonic and reductive tendencies inherent in such attempts, this paper proposes an alternative which engages with the everyday reality of life. Intrinsic to this proposition is that our traditions and utopias must be founded upon a continual (re)making in the everyday.

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Third Way Architecture: Between Cybernetics And Phenomenology, S Murrani Jan 2011

Third Way Architecture: Between Cybernetics And Phenomenology, S Murrani

School of Art, Design and Architecture

This article in its essence aims to challenge and unfold, each at a time, two different fields of methodology – cybernetics and phenomenology – that have direct effects on the product of being and the process of becoming in architectural discourse. Furthermore, this article suggests a third way philosophy for architecture that relates notions of post-phenomenology and technoscience, and considers both to be equally vital to development and speculation within current architectural discourse. First, the history of each of the two fields – cybernetics and phenomenology – will be unveiled with a focus on exploring their impact upon architecture in …

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Understanding Streaming In Dictyostelium Discoideum: Theory Versus Experiments, J. C. Dallon, Brittany Dalton, Chelsea Malani Jan 2011

Understanding Streaming In Dictyostelium Discoideum: Theory Versus Experiments, J. C. Dallon, Brittany Dalton, Chelsea Malani

Faculty Publications

Recent experimental work involving Dictyostelium discoideum seems to contradict several theoretical models. Experiments suggest that localization of the release of the chemoattractant cyclic adenosine monophosphate to the uropod of the cell is important for stream formation during aggregation. Yet several mathematical models are able to reproduce streaming as the cells aggregate without taking into account localization of the chemoattractant. A careful analysis of the experiments and the theory suggests the two major features of the system which are important to stream formation are random cell motion and chemotaxis to regions of higher cell density. Random cell motion acts to reduce …

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Solutions And Open Challenges For The Symbol Grounding Problem, A Cangelosi Jan 2011

Solutions And Open Challenges For The Symbol Grounding Problem, A Cangelosi

School of Engineering, Computing and Mathematics

This article discusses the current progress and solutions to the symbol grounding problem and specifically identifies which aspects of the problem have been addressed and issues and scientific challenges that still require investigation. In particular, the paper suggests that of the various aspects of the symbol grounding problem, the transition from indexical representations to symbol-symbol relationships requires the most research. This analysis initiated a debate and solicited commentaries from experts in the field to gather consensus on progress and achievements and identify the challenges still open in the symbol grounding problem.

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Affordances, Adaptive Tool Use And Grounded Cognition., A Pellicano, S Thill, T Ziemke, F Binkofski Jan 2011

Affordances, Adaptive Tool Use And Grounded Cognition., A Pellicano, S Thill, T Ziemke, F Binkofski

School of Engineering, Computing and Mathematics

No abstract provided.

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Precision Study Of Excited State Effects In Nucleon Matrix Elements, Simon Dinter, Constantia Alexandrou, Martha Constantinou, Vincent Drach, Karl Jansen, Dru B. Renner Jan 2011

Precision Study Of Excited State Effects In Nucleon Matrix Elements, Simon Dinter, Constantia Alexandrou, Martha Constantinou, Vincent Drach, Karl Jansen, Dru B. Renner

School of Engineering, Computing and Mathematics

No abstract provided.

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Anomaly-Based Correlation Of Ids Alarms, Gina C. Tjhai Jan 2011

Anomaly-Based Correlation Of Ids Alarms, Gina C. Tjhai

School of Engineering, Computing and Mathematics Theses

An Intrusion Detection System (IDS) is one of the major techniques for securing information systems and keeping pace with current and potential threats and vulnerabilities in computing systems. It is an indisputable fact that the art of detecting intrusions is still far from perfect, and IDSs tend to generate a large number of false IDS alarms. Hence human has to inevitably validate those alarms before any action can be taken. As IT infrastructure become larger and more complicated, the number of alarms that need to be reviewed can escalate rapidly, making this task very difficult to manage. The need for …

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Bayesian Modelling Of Ultra High-Frequency Financial Data, Golnaz Shahtahmassebi Jan 2011

Bayesian Modelling Of Ultra High-Frequency Financial Data, Golnaz Shahtahmassebi

School of Engineering, Computing and Mathematics Theses

The availability of ultra high-frequency (UHF) data on transactions has revolutionised data processing and statistical modelling techniques in finance. The unique characteristics of such data, e.g. discrete structure of price change, unequally spaced time intervals and multiple transactions have introduced new theoretical and computational challenges. In this study, we develop a Bayesian framework for modelling integer-valued variables to capture the fundamental properties of price change. We propose the application of the zero inflated Poisson difference (ZPD) distribution for modelling UHF data and assess the effect of covariates on the behaviour of price change. For this purpose, we present two modelling …

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An Integrated Framework To Assess ‘Leanness’ Performance In Distribution Centres, Amr Mahfouz Jan 2011

An Integrated Framework To Assess ‘Leanness’ Performance In Distribution Centres, Amr Mahfouz

Doctoral

The theory behind lean philosophy is to create more value with less. Effective lean management enables organisations to exceed customer expectations while reducing costs. Despite the fact that numerous practices and approaches are used in the process of implementing lean philosophy and reducing waste within supply chain systems, little effort has been directed into assessing the leanness level of distribution and its impact on overall performance. Given the vital role of distribution units within supply chains, this research aims to develop a comprehensive lean assessment framework that integrates a selected set of statistical, analytical, and mathematical techniques in order to …

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Technology Enhanced Learning: Students' Views, Eileen O'Donnell, Mary Sharp Jan 2011

Technology Enhanced Learning: Students' Views, Eileen O'Donnell, Mary Sharp

Conference Papers

User feedback is very important in all areas of computer science especially in the development of computer applications. Hence, student feedback on the use of technology enhanced learning in higher education in Ireland is relevant to the quality of the learning resources to be created by learning designers and academics in the future. The book “Student Reactions to Learning with Technologies: Perceptions and Outcomes” (Moyle & Wijngaards, 2012) was published by IGI Global in October 2011. This book includes contributions from various authors who are interested in students’ feedback regarding how technology has impacted on their educational experience. This book …

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Spin-Dependent Electron Transport In Nanomagnetic Thin Film Devices, Yun Zhou Jan 2011

Spin-Dependent Electron Transport In Nanomagnetic Thin Film Devices, Yun Zhou

School of Engineering, Computing and Mathematics Theses

Spin-dependent electron transport in submicron/nano sized magnetic thin film devices fabricated using the optical lithography, e-beam lithography and focused ion beam (FIB) was investigated with the primary aim to find the ballistic magnetoresistance (BMR) in thin film nanoconstrictions. All experimental results were analysed in combination with micromagnetic simulations. The magnetisation reversal processes were investigated in a submicron half-pinned NiFe stripe with a microconstriction. An asymmetric MR curve was observed, and micromagnetic simulations verified it was due to the exchange-bias on the left side, which changed the magnetic switching mechanism. The effects of different pinning sites on the magnetisation switching and …

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A Study On Wireless Communication Error Performance And Path Loss Prediction, Ismail Isnin Jan 2011

A Study On Wireless Communication Error Performance And Path Loss Prediction, Ismail Isnin

School of Engineering, Computing and Mathematics Theses

One channel model that characterises multipath fading effect of a wireless channel is called Flat Rayleigh Fading channel model. Given the properties of Flat Rayleigh Fading channel, an equation to find the capacity of a Flat Rayleigh fading channel with hard decision decoding is derived. The difference of power requirement to achieve the Additive White Gaussian Noise (AWGN) capacity over a Flat Rayleigh Fading channel fading is found to increase exponentially with Es /N0 . Upper and lower bounds of error performance of linear block codes over a Flat Rayleigh Fading channel are also studied. With the condition that the …

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Video Quality Prediction For Video Over Wireless Access Networks (Umts And Wlan), Asiya Khan Jan 2011

Video Quality Prediction For Video Over Wireless Access Networks (Umts And Wlan), Asiya Khan

School of Engineering, Computing and Mathematics Theses

Transmission of video content over wireless access networks (in particular, Wireless Local Area Networks (WLAN) and Third Generation Universal Mobile Telecommunication System (3G UMTS)) is growing exponentially and gaining popularity, and is predicted to expose new revenue streams for mobile network operators. However, the success of these video applications over wireless access networks very much depend on meeting the user’s Quality of Service (QoS) requirements. Thus, it is highly desirable to be able to predict and, if appropriate, to control video quality to meet user’s QoS requirements. Video quality is affected by distortions caused by the encoder and the wireless …

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Designing Together: Effective Strategies For Creating A Collaborative Curriculum To Support Academic Development, Noel Fitzpatrick, Jen Harvey Jan 2011

Designing Together: Effective Strategies For Creating A Collaborative Curriculum To Support Academic Development, Noel Fitzpatrick, Jen Harvey

Books/Book Chapters

This publication has arisen out of collaborative work completed as part of the Learning Innovation Network (LIN) project funded under Strand 2 of the Irish Higher Education Authority (HEA) Strategic Initiative funded (SIF) sectoral project: Improving services to students and capacity building (2006-2010), involving all 13 Irish Institutes of Technology and the Technological University Dublin. One of the 3 objectives of this strand was to scope the parameters of an agreed Academic Development Programme. Since Sept 2008, a LIN Accredited Professional Development (APD) Sub-group has been working towards the establishment of a sustainable shared academic development programme that might be …

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Estimating The Efficacy Of Mild Heating Processes Taking Into Account Microbial Non-Linearities: A Case Study On The Thermisation Of A Food Simulant, Vasilis Valdramidis, Brijesh Tiwari, Patrick J. Cullen, Alain Kondjoyan, Jan Van Impe Jan 2011

Estimating The Efficacy Of Mild Heating Processes Taking Into Account Microbial Non-Linearities: A Case Study On The Thermisation Of A Food Simulant, Vasilis Valdramidis, Brijesh Tiwari, Patrick J. Cullen, Alain Kondjoyan, Jan Van Impe

Articles

Traditional and novel approaches for the calculation of the heat treatment efficiency are compared in this work. The Mild Heat value (MH-value), an alternative approach to the commonly used sterilisation, pasteurisation and cook value (F, P, C–value), is calculated to estimate the efficiency of a mild heat process. MH-value is the time needed to achieve a predefined microbial reduction at a reference temperature and a known thermal resistant constant, z, for log-linear or specific types of non log-linear microbial inactivation kinetics. An illustrative example is given in which microbial inactivation data of Listeria innocua CLIP 20-595 are used for estimating …

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Application Of Principal Component And Hierarchical Cluster Analysis To Classify Different Spices Based On In Vitro Antioxidant Activity And Individual Polyphenolic Antioxidant Compounds, M. Hossain, A. Patras, Catherine Barry-Ryan, Ana Belen Martin-Diana, N. Brunton Jan 2011

Application Of Principal Component And Hierarchical Cluster Analysis To Classify Different Spices Based On In Vitro Antioxidant Activity And Individual Polyphenolic Antioxidant Compounds, M. Hossain, A. Patras, Catherine Barry-Ryan, Ana Belen Martin-Diana, N. Brunton

Articles

This study investigated the variations in antioxidant profiles between spices using pattern recognition tools; classification was achieved based on the results of global antioxidant activity assays (2,2-diphenyl-1-picrylhydrazyl [DPPH], oxygen radical absorbance capacity [ORAC], ferric reducing antioxidant power [FRAP], microsomal lipid peroxidation [MLP] and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) [ABTS]), levels of different polyphenolic compounds (gallic acid [GA], carnosol [CAR], carnosic acid [CRA], caffeic acid [CA], rosmarinic acid [RA], luteolin-7-O-glucoside [LOG], apigenin-7-O-glucoside [APOG] and total phenols [TP]) of spices namely rosemary, oregano, marjoram, sage, basil, thyme, fennel, celery, cumin and parsley, commonly consumed in Ireland were analyzed. Rosemary showed the highest antioxidant activity measured …

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Application Of Response Surface Methodology For Studying The Influence Of Hydrothermal Processing On The Phytochemical Constituents Of Irish Edible Brown Seaweed, Sabrina Cox, Shilpi Gupta, Nissreen Abu-Ghannam Jan 2011

Application Of Response Surface Methodology For Studying The Influence Of Hydrothermal Processing On The Phytochemical Constituents Of Irish Edible Brown Seaweed, Sabrina Cox, Shilpi Gupta, Nissreen Abu-Ghannam

Articles

We used response surface methodology to investigate the effect of time and temperature of hydrothermal processing (blanching) on the phytochemical content, texture and colour
of a semi-dried brown seaweed ( Himanthalia elongata ). A central composite design was employed with a hydrothermal processing time of 10 – 30 min and temperature of 60 – 90 ° C. Predicted models were found to be signifi cant for total phenolic
content, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity, total fl avonoids, total condensed tannins, texture and colour. The predicted values for each of the responses were in good agreement with experimental values. Processing time had …

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Effect Of Processing Conditions On Phytochemical Constituents Of Edible Irish Seaweed Himanthalia Elongata., Sabrina Cox, Nissreen Abu-Ghannam, Shilpi Gupta Jan 2011

Effect Of Processing Conditions On Phytochemical Constituents Of Edible Irish Seaweed Himanthalia Elongata., Sabrina Cox, Nissreen Abu-Ghannam, Shilpi Gupta

Articles

Seaweed iswell recognized as an excellent source of phytochemicals. This study was a preliminary screening to investigate the effects of various food processing methods on the phytochemicals of Himanthalia elongata. Hydrothermal processing was carried out until an edible texture was achieved. The total phenolic content (TPC) of fresh H. elongata was 175.27 mg gallic acid equivalent (GAE)/100 g fresh weight (FW) while boiling significantly reduced the TPC to 25.4 mg GAE/100 g FW
(P < 0.05).A drying pretreatment before boiling reduced the cooking time therefore leading to less leaching of antioxidants upon boiling. In terms of extract, drying of H. elongata followed by boiling had the most significant effect on the phytochemicals as TPC increased by 174%. Boiled extracts had the most effective 2, 2-diphenyl- 1-picrylhydrazyl scavenging activity (EC50 of 12.5 mg/mL). As a comparison, seaweed subjected to the same treatments was studied in terms of antimicrobial activity.Overall, extracts fromfresh H. elongata achieved the highest inhibition.

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Application Of Response Surface Methodology For Studying The Influence Of Hydrothermal Processing On The Phytochemical Constituents Of Irish Edible Brown Seaweed, Sabrina Cox Jan 2011

Application Of Response Surface Methodology For Studying The Influence Of Hydrothermal Processing On The Phytochemical Constituents Of Irish Edible Brown Seaweed, Sabrina Cox

Articles

We used response surface methodology to investigate the effect of time and temperature of hydrothermal processing (blanching) on the phytochemical content, texture and colour of a semi-dried brown seaweed ( Himanthalia elongata ). A central composite design was employed with a hydrothermal processing time of 10 – 30 min and temperature of 60 – 90 ° C. Predicted models were found to be signifi cant for total phenolic content, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity, total fl avonoids, total condensed tannins, texture and colour. The predicted values for each of the responses were in good agreement with experimental values. Processing time had …

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An Online Framework For Supporting The Evaluation Of Personalised Information Retrieval Systems, Catherine Mulwa, Luca Longo, Seamus Lawless, Mary Sharpe, Vincent Wade Jan 2011

An Online Framework For Supporting The Evaluation Of Personalised Information Retrieval Systems, Catherine Mulwa, Luca Longo, Seamus Lawless, Mary Sharpe, Vincent Wade

Conference papers

Scope - Personalised Information Retrieval (PIR) has been gaining attention because it investigates intelligent ways for enhancing content delivery. Web users can have personalised services and more accurate information. Problem - Several PIR systems have been proposed in the literature; however, they have not been properly tested or evaluated. Proposal – The authors propose a generally applicable web-based interface, which provides PIR developers and evaluators with: i) implicit recommendations on how to evaluate a specific PIR system; ii) a repository containing studies on user-centred and layered evaluation studies; iii) recommendations on how to best combine different evaluation methods, metrics and …

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An Event-Based Approach To Describing And Understanding Museum Narratives, Paul Mulholland, Annika Wolff, Trevor Collins, Zdenek Zdrahal Jan 2011

An Event-Based Approach To Describing And Understanding Museum Narratives, Paul Mulholland, Annika Wolff, Trevor Collins, Zdenek Zdrahal

Publications

Current museum metadata tends to be focused around the properties of the heritage object such as the artist, style and date of creation. This form of metadata can index a museum’s collection but cannot express the relations between heritage objects and related concepts found in contemporary museum exhibitions. A modern museum exhibition, rather than providing a taxonomic classification of heritage objects, uses them in the construction of curatorial narratives to be interpreted by an audience. In this paper we outline how curatorial narratives can be represented semantically using our Curate Ontology. The Curate Ontology, informed by a detailed analysis of …

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Modeling The Development Of Pronunciation In Infant Speech Acquisition., Is Howard, P Messum Jan 2011

Modeling The Development Of Pronunciation In Infant Speech Acquisition., Is Howard, P Messum

School of Engineering, Computing and Mathematics

Pronunciation is an important part of speech acquisition, but little attention has been given to the mechanism or mechanisms by which it develops. Speech sound qualities, for example, have just been assumed to develop by simple imitation. In most accounts this is then assumed to be by acoustic matching, with the infant comparing his output to that of his caregiver. There are theoretical and empirical problems with both of these assumptions, and we present a computational model- Elija-that does not learn to pronounce speech sounds this way. Elija starts by exploring the sound making capabilities of his vocal apparatus. Then …

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Separate Representations Of Dynamics In Rhythmic And Discrete Movements: Evidence From Motor Learning, Ian S. Howard, James N. Ingram, Daniel M. Wolpert Jan 2011

Separate Representations Of Dynamics In Rhythmic And Discrete Movements: Evidence From Motor Learning, Ian S. Howard, James N. Ingram, Daniel M. Wolpert

School of Engineering, Computing and Mathematics

No abstract provided.

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Report On Work Placement Experience With The Organisation Of Quality And Safety Of Healthcare In Ireland, Aidan Hanway Jan 2011

Report On Work Placement Experience With The Organisation Of Quality And Safety Of Healthcare In Ireland, Aidan Hanway

Students Learning with Communities

No abstract provided.

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Report On Work Placement Experience With The Organisation Of Quality And Safety Of Healthcare In Ireland, Keith Bermingham Jan 2011

Report On Work Placement Experience With The Organisation Of Quality And Safety Of Healthcare In Ireland, Keith Bermingham

Students Learning with Communities

No abstract provided.

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Determining Students' Working Conceptions Of Evolution Through Formative Assessment Probes, Danielle J. Burras Jan 2011

Determining Students' Working Conceptions Of Evolution Through Formative Assessment Probes, Danielle J. Burras

Dissertations and Theses @ UNI

Students entering a science classroom bring with them many ideas about science content and the nature of science. Some of those ideas are not congruent with current scientific explanations and can be called working conceptions. Working conceptions have the ability to impact how students respond to new information and whether or not they integrate it into their lives outside of the classroom. Identifying what working conceptions students have prior to instruction allows educators to determine how instruction should be formatted and what concepts may need extra focus. The purpose of this investigation was to determine the effectiveness of formative assessment …

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