Digital Commons Network^™

Institutionalizing Ireland’S Industrial Development Authority, Paul Donnelly

Conference papers

Actor-network theory is considered to have great potential for broadening and deepening our grasp of institutional work (Lawrence and Suddaby, 2006). Given its focus on process, ANT offers a means to breathe life into the practices associated with institutionalization. With Callon’s (1986) four moments of translation as analytical lens, and with Ireland’s Industrial Development Authority as empirical example, I seek to address the concerns in the call for papers to reconsider ‘the role of agency, power, persistence and change in the process of institutionalization.’

Simulation Algorithm And Validation Of A Photovoltaic Water Pumping System, I. Odeh, Y. Yohannis, Brian Norton

Articles

A photovoltaic (PV) water pumping system has been modelled using TRNSYS considering a power supply, a direct current (DC)/alternating current (AC) inverter, an AC induction motor, a centrifugal pump, a well, a water storage tank, and an overflow protection device. The model emulates actual pumping head curves, uses numerical methods to determine pump system working points, and includes a storage tank as a component in the system. It simulates PV-powered water pumping systems, constant voltage tracking, voltage frequency modulation, and maximum power point tracking algorithms; variable inverter frequency with variable motor efficiency, variable inverter frequency with constant motor efficiency, and …

The Role Of Sustainability In Scm: The Case Of The Sustainable Packaging Supply Chain, Edward Sweeney

Practitioner Journals

No abstract provided.

Integration, Alignment And Ict In Supply Chains, Edward Sweeney

Other Resources

No abstract provided.

Supply Chain Management, Economic Volatility And Ict, Edward Sweeney

Other Resources

No abstract provided.

An Investigation Of The Rwpe Prostate Derived Family Of Cell Lines Using Ftir Spectroscopy, M. Baker, Colin Clarke, D. Demoulin, J. Nicolson, Fiona Lyng, Hugh Byrne, C. Hart, M. Brown, N. Clarke, P. Gardner

Articles

Interest in developing robust, quicker and easier diagnostic tests for cancer has lead to an increased use of Fourier transform infrared (FTIR) spectroscopy to meet that need. In this study we present the use of different experimental modes of infrared spectroscopy to investigate the RWPE human prostate epithelial cell line family which are derived from the same source but differ in their mode of transformation and their mode of invasive phenotype. Importantly, analysis of the infrared spectra obtained using different experimental modes of infrared spectroscopy produce similar results. The RWPE family of cell lines can be separated into groups based …

Ultrasound-Assisted Swnts Dispersion: Effects Of Sonication Parameters And Solvent Properties, Qiaohuan Cheng, Sourabhi Debnath, Elizabeth Gregan, Hugh Byrne

Articles

Ultrasonication is widely used for preparing Single-Walled Carbon Nanotube (SWNT) dispersions in different solvent media and it has been shown to play a critical role in dispersing and debundling SWNTs. The strong shear force that can exfoliate the SWNT bundles during sonication comes from cavitation, which entails a process of bubble formation, growth, and collapse. The efficiency of the cavitation process is closely correlated to many solvent parameters, including vapor pressure, viscosity, and surface tension, as well as the sonication frequency, intensity, and time. In this study, SWNTs were dispersed in a range of organic solvents assisted by tip sonication. …

Dit Teaching Fellowship Reports 2009-2010, Jen Harvey

Teaching Fellowships

No abstract provided.

Harmonizing Technology With Interaftion In Blended Problem-Based Learning, Roisin Donnelly

Journal Articles

This paper discusses the harmonizing role of technology and interaction in a qualitative study on blended 22 problem-based learning within the context of academic development in higher education. Within this 23 setting, and as both designers and tutors in blended PBL, it is important to seek best practices for how 24 to combine instructional strategies in face-to-face and computer-mediated environments that take 25 advantage of the strengths of each and avoid their weaknesses. A qualitative study of the lived experi- 26 ences of 17 academic staff participants in a blended problem-based learning module was considered 27 likely to provide a …

A Project-Based Learning Approach To Applied Craft Calculations Within Apprenticeship Education: An Action Research Study, Kevin Furlong

Theses

Using an Action Research methodology, this study was based in Technologicl University Dublin and conducted with the cooperation of three groups of Phase Six Plumbing apprentices over a ten-month period (three cycles). The main aim of the research project was to establish if a deeper understanding and application of Building Services Applied Calculations could be achieved through the implementation of Project-Based Learning within Apprenticeship Education? Research literature shows that not only in Ireland but also abroad, third level education is experiencing what is described as a ‘maths problem’. With applied calculations and mathematics being a fundamental and essential part of …

Quantitative Modelling Approaches For Ascorbic Acid Degradation And Non-Enzymatic Browning Of Orange Juice During Ultrasound Processing, Vasilis Valdramidis, Patrick J. Cullen, Brijesh Tiwari, Colm O’Donnell

Articles

The objective of this study was to develop a deterministic modelling approach for non-enzymatic browning (NEB) and ascorbic acid (AA) degradation in orange juice during ultrasound processing. Freshly squeezed orange juice was sonicated using a 1,500 W ultrasonic processor at a constant frequency of 20 kHz and processing variables of amplitude level (24.4 – 61.0 μm), temperature (5 – 30 oC) and time (0 – 10 min). The rate constants of the NEB and AA were estimated by a primary model (zero and first order) while their relationship with respect to the processing factors was tested for a number of …

Postharvest Hardness And Color Evolution Of White Button Mushrooms (Agaricus Bisporus)., Debabandya Mohapatra, Zuberi M. Bira, Joseph Kerry, Jesus Maria Frias, Fernanda A.R. Oliveira

Articles

The quality evaluation of mushrooms was studied by storing fresh white button mushroom (Agaricus bisporus) for 6-8 days, at various controlled temperature conditions (3.5 -15°C) and measuring the instrumental textural hardness and color of the mushroom cap for different product batches. A non linear mixed effect weibull model was used to describe mushroom cap texture and color kinetics during storage considering the batch variability into account. Storage temperature was found to play a significant role in controlling texture and colour degradation. On lowering storage temperature i) the extent of the final browning extent in the mushroom after storage …

Social Entrepreneurs As Drivers Of Destinations, Ziene Mottiar

Conference papers

No abstract provided.

Can We Be 'Friends'? Social Networking And Student Engagement In An Academic Environment, Mary O'Rawe

Conference papers

Students’ methods of engagement in third level education are very different to those of a decade ago (Cloete, de Villiers & Roodt 2009). There are a number of factors impacting on these changes in students’ profiles, expectations and willingness to engage. One of these factors which is addressed by the author is the way in which students now use social networking tools to engage and communicate. Popular new technologies such as wikis, blogs and podcasts are now being used for academic purposes. But what are the roles of such tools? Do they merely aid staff-student communication and student-student communication, do …

Researcher Suite: Selection And Implementation – The Hosted Option, Niamh Walker-Headon

Support services (Former ITT) - Articles

Purpose – The purpose of this paper is to provide a case study of the selection process used to select the ReSearcher Suite, and its implementation including an outline of why and how the suite was implemented at the Library in the Institute of Technology in Tallaght.

Design/methodology/approach – Case study – single site.

Findings – The Simon Frasier University (SFU) hosted ReSearcher Suite (with support) provides an open source solution for open URL linking integrated with inter-library loan submission, federated searching, knowledge base, coverage data, and A-Z listings for journals and databases. While it does not have the full …

Dit Graduate Exhibition Show Of The School Of Art, Design And Printing 2010, Dublin Institute Of Technology

DIT Publications

Exhibition committee staff Kieran Corcoran Peter Jones Paul White Robert Tully Neville Knott John Short Brenda Dermody Clare Bell Brenda Duggan Annette Buckley Pat Muldowny Joe Hanly Exhibition commitee student representatives Lucy Clarke Margaret Flynn Kate Geoghegan Gavin Gogarty Fiona O'Keeffe Cian McKenna Becky O'Hara Catalogue concept and design Paul Woods - www.paultheillustrator.com Maeve Keane - www.andstudio.ie Photography by Gillian Buckley. Typeset in DIN 9pt and 24pt. Printed on 140gsm Revive 50/50 by Future Print, Dublin. DIT Graduate Exhibition 2010

Rapid Microwave Synthesis Of Mesoporous Tio2 For Electrochromic Displays, Suresh Pillai, Declan Mccormack, Pradeepan Periyat, Nigel Leyland, David Corr, John Colreavy

Articles

No abstract provided.

Enhancement Of The Antibacterial Properties Of Silver Nanoparticles Using Beta-Cyclodextrin As A Capping Agent, Swarna Jaiswal, Brendan Duffy, Niall Stobie, Patrick Mchale, Amit Jaiswal

Articles

Silver nanoparticles (AgNPs) were synthesized by reducing silver salts using NaBH4 followed by capping with varying concentrations of β-cyclodextrin (β-CD) and were physically characterised. Antibacterial activity against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus was determined by a microtitre well method. The AgNPs were spherical under TEM while DLS showed average diameters of capped particles to be smaller (4-7 nm) than their uncapped equivalents (17 nm). Capped particles demonstrated superior photostability when exposed to intense UV radiation for 4 hours and a significantly (p

Corrosion Protection Of Aa 2024-T3 Aluminium Alloys Using 3, 4-Diaminobenzoic Acid Chelated Zirconium-Silane Hybrid Sol-Gels, P.C. Rajath Varma, John Colreavy, John Cassidy, Mohamed Oubaha, Colette Mcdonagh, Brendan Duffy

Articles

Organic-inorganic polymers formed by hydrolysis/condensation reactions of alkoxide precursors, such as organically modified silanes (Ormosils) have found applications as electronic, optical and protective coatings. Such coatings possess important characteristics such as chemical stability, physical strength and scratch resistance. Further performance improvement is achieved through the incorporation of zirconium and titanium based nanoparticles, also formed through the sol-gel process. However due to the inherent difference in the reactivity of the precursors, the hydrolysis of each precursor must be carried out separately before being combined for final condensation. Zirconium precursors are commonly chelated using acetic acid or acetyl acetonate prior to hydrolysis, …

Single Step Morphology-Controlled Synthesis Of Silver Nanoparticles, Vinodkumar Etacheri, Reenamole Georgekutty, Michael Seery, Suresh Pillai

Articles

Silver nanoparticles having different size and plasmon resonances were synthesized through a single step aqueous based method. The current procedure was based on the reduction of silver ions by ascorbic acid in the presence of sodiumborohydride and trisodium citrate. Triangular colloidal nanoparticles having different plasmon resonances (and hence different size and colours) were synthesized by varying only the concentration of ascorbic acid. These nanoparticles were found to be stable without using any surfactants or polymers. This study revealed a strong correlation between particle growth and concentration of constituent chemicals. Crystallinity and phase purity of the silver samples were investigated through …

Asymptotic Properties Of Markov Modulated Sequences With Fast And Slow Time Scales, Son Luu Nguyen

Wayne State University Dissertations

In this dissertation we investigate asymptotic properties of Markov modulated random processes having two-time scales. The model contains a number of mixing sequences modulated by a switching process that is a discrete-time Markov chain. The motivation of our study stems from applications in manufacturing systems, communication networks, and economic systems, in which regime-switching models are used.

This thesis focuses on asymptotic properties of the Markov modulated processes under suitable scaling. Our main effort focuses on obtaining weak convergence and strong approximation results.

Imaging The Vasculature With Susceptibility Weighted Imaging: Applications And Analysis, Samuel Barnes

Wayne State University Dissertations

Modern magnetic resonance imaging sequences allow detailed non-invasive imaging of both the arteries and veins. This work is divided into four sections that examine different applications and analysis of these sequences.

Susceptibility weighted imaging (SWI) typically generates excellent negative venous contrast. Techniques to generate positive arterial contrast in SWI images without degrading the venous contrast with a single echo are examined. By using high isotropic resolution and high readout bandwidth flow losses can be minimized (generating good arterial contrast) even at the long echo times required for good venous contrast. A downsampling filter is then used to restore lost venous …

Accelerated Lattice Boltzmann Method For Colloidal Suspensions Rheology And Interface Morphology, Hassan Farhat

Wayne State University Dissertations

ABSTRACT

ACCELERATED LATTICE BOLTZMANN MODEL FOR COLLOIDAL SUSPENSIONS RHEOLOGY AND INTERFACE MORPHOLOGY

by

HASSAN FARHAT

July 2010

Advisor: Dr. Singh Trilochan

Co-Advisor: Dr. Joon Sang Lee

Major: Mechanical Engineering

Degree: Doctor of Philosophy

Colloids are ubiquitous in the food, medical, cosmetic, polymer, water purification and pharmaceutical industries. Colloids thermal, mechanical and storage properties are highly dependent on their interface morphology and their rheological behavior.

Numerical methods provide a cheap and reliable virtual laboratory for the study of colloids. However efficiency is a major concern to address when using numerical methods for practical applications.

This work introduces the main building-blocks for …

A History Of American Settlement At Camp Atterbury, Steven D. Smith, Chris J. Cochran, Engineer Research And Development Center Champaign Il Construction Engineering Research Lab

Faculty Publications

This report details the history of 19th and 20th century farm and community settlement within the Camp Atterbury Joint Maneuver Training Center, IN. It also provides a historic context for the identification, evaluation, and preservation of significant historic properties within installation boundaries. This historic context defines property types, poses research questions, and provides evaluation criteria based on the Camp Atterbury Joint Maneuver Training Center's settlement history, in an effort to develop a comprehensive program of multiple site evaluation.

Media Literacy And Communication Rights: Ethical Individualism In The New Media Environment, Brian O'Neill

Articles

The dominant discourse of media literacy policy espouses an ethical individualism within the digital media environment in which the source of moral values and principles, and the basis of ethical evaluation, is the individual. In this perspective, even vulnerable citizens such as children and young people, who tend to be in the vanguard of new media adoption, are required to negotiate the risks and opportunities of the online world with diminishing degrees of institutional support from trusted information sources. Noticeably absent from this discourse is any consideration of the notion of communication rights. Examining an alternative conceptualization of media literacy …

Current Policy Developments In European Media Literacy, Brian O'Neill

Articles

In August of 2009, the European Commission issued a formal recommendation on media literacy adding to a series of initiatives underway since 2006 to build a comprehensive European media literacy policy (Commission of the European Communities 2009). Media literacy is now a well-established concept referring to the ability to critically understand and use media in a variety of contexts (see Aufderheide 1997). Recognising that the way people use media is changing and that the volume of information received is enormous, the Commission notes that all citizens need to have the ability to access, analyse and evaluate images, sounds and texts …

Beyond Europe: Launching Digital Radio In Canada And Australia, Brian O'Neill

Books/Book chapters

Eureka 147 was, as we have argued throughout this volume, a European technology designed within the very particular context of European public service broadcasting (see also Rudin 2006; O'Neill 2009). At the same time, the consortitum behind DAB technology had the ambition that Eureka 147 would become the world standard for digital radio. DAB was indeed the first such technological system to achieve standardisation at the European Telecommunications Standards Institute (ETSI), and be recommended as a global standard for digital terrestrial sound broadcasting by the International Telecommunications Union (ITU).

Dislocations: Participatory Media With Refugees In Malta And Ireland, Anthony Haughey

Books/Book chapters

Malta is located in the Mediterranean Sea between North Africa and Europe, a receiving country for significant inward migration. For most migrants the goal is to reach mainland Europe. However, every year a significant number of smuggler boats inadvertently drift into Maltese territorial waters often in severe distress, resulting in rescue by the Maltese Navy and an uncertain future.

Whilst working in Malta I was struck by the similarities between Ireland and Malta. Both islands’ are peripheral locations on the western and southern edges of Europe. Historically both countries have experienced significant outward migration of its citizens who live all …

Not Seeing The Joke: The Overlooked Role Of Humour In Media Production Research, Edward Brennan

Conference Papers

This paper attempts to offer a methodological contribution to media production research. By reconsidering an earlier case study, and reviewing relevant literature, it illustrates how humour can fulfill several functions in media production. Importantly, humour is a central means of performing the ‘emotional labour’ that increasingly precarious media work demands. Methodologically, the everyday joking and banter of media workers can provide an important and, heretofore, overlooked means of accessing culture, meaning, consensus and conflict in media organisations. The article argues that humour’s organisational role should be considered when designing production research.

Analytical Chemistry 2.0, David Harvey

Chemistry & Biochemistry Faculty Publications

No abstract provided.