Digital Commons Network^™

A New Placement And Integration Method Of Upqc To Improve The Power Quality In Dg Network, Shafiuzzaman K. Khadem, Malabika Basu, Michael Conlon

Conference papers

A new proposal for the placement and integration of UPQC in DG connected microgrid/micro generation (μG) system has been presented here. DG converters (with storage), the load and shunt part of the UPQC will be placed at or after the PCC. The series part of the UPQC will be placed before the PCC and in series with the grid. DC link can be connected to the storage system also. Hence, it is termed UPQCμ_G. The advantages of the proposed UPQCμ_G over the normal UPQC are to compensate voltage interruptions in addition to voltage sags / swells, harmonic …

Using Architecture Pedagogy To Enhance Engineering Education, Shannon Chance, Mike Murphy, Gavin Duffy, Brian Bowe

Conference papers

Based on evidence, numerous advisory boards and scholars insist engineering education must change (NSB, 2007; McKenna, Froyd, King, Litzinger, & Seymour, 2011) and that hands-on, inquiry-driven, project-based learning pedagogies can enhance STEM education (Boyer & Mitgang, 1996). These pedagogies have formed the core of architectural education since the Renaissance and have been in continuous use since that time. As such, engineering educators can benefit from observing how architecture students learn and understanding how they are taught. Likewise, architecture can benefit from applying the group-based learning strategies employed by engineering teachers who use studentcentered, project-based pedagogies. Trans-disciplinary approaches hold particular merit.

Phases: Opto-Mechanical Solutions To Perform Absolute Spectrophotometry From Space, Carlos Del Burgo, Dinesh Vather, Niall Murphy

Conference papers

This work provides an update of the current status of PHASES, which is a project aimed at developing a space-borne telescope to perform absolute flux calibrated spectroscopy of bright stars. PHASES will make it possible to measure micromagnitude photometric variations due to, e.g., exo-planet/moon transits. It is designed to obtain 1% RMS flux calibrated low resolution spectra in the wavelength range 370–960 nm with signal-to-noise ratios >100 for stars with V∼1 minute. The strategy to calibrate the system using A-type stars is outlined. PHASES will make possible a complete characterization of stars, some of them hosting planets. From the comparison …

Evaluation Of Proximity Heating Effects In Power Cables, Jonathan Blackledge, Eugene Coyle, Kevin O'Connell

Articles

No abstract provided.

On The Dirac Scattering Problem, Jonathan Blackledge, Bazar Babajanov

Articles

We consider a method of solving the Dirac scattering problem based on an approach previously used by the authors to solve the Schrodinger scattering problem to develop a conditional exact scattering solution and an unconditional series solution. We transform the Dirac scattering problem into a form that facilitates a soltuion based on the relativistic Lippmann-Schwinger equation using the relativistic Green's function that is transcendental in terms of the scattered field. Using the Dirac operator, this solution is transformed further to yield a modified relativistic Lippman-Schwinger equation that is also transcendental in terms of the scattered field. This modified solution faclitates …

Economic Challenges And Optimisation Of Ocean Energy Electrical Systems, Fergus Sharkey

Books/Book chapters

No abstract provided.

An Investigation Into Energy Consumption And Existing Energy Management Practices In A Dublin Sports Centre, Colin J. Conway

Dissertations

Rising energy costs are a concern to all businesses but especially to those who have a large energy demand. Sports centres with swimming pools have large requirements for heat and electricity in order to maintain thermal comfort within the pool and surrounding areas.

Sports centres which were built in the 1970s were designed at a time when energy was cheap and many of today’s control strategies and energy efficiency measures were unavailable.

This project is an investigation into the electrical and thermal consumption of the Tallaght Sports Complex. The Tallaght Sports Complex was built in the 1970s and is lacking …

An Evaluation Of Seawater Pumped Hydro Storage For Regulating The Export Of Wind Energy To The National Grid, Eoin D. Mclean

Dissertations

Hydroelectric power generation has been in use for a very long time. From the earliest watermills to the current large scale Hydro power plants, this is a technology that is proven to be reliable and commercially viable. The use of wind energy to provide mechanical power for the purpose of turning a rotor is also not a new concept.Four years ago TCD Professor of Applied Physics Igor Shvets conceived the idea of solving Ireland’s energy crisis by taking these two proven renewable technologies and combining them. (McGreevey, 2012) The spirit of Ireland initiative seeks to resolve the biggest issues facing …

Chapter Green Nanotechnology: Development Of Nanomaterials For Environmental And Energy Applications, Rachel Fagan, Changseok Han, Joel Andersen, Suresh Pillai, Polycarpos Falaras, Anthony Byrne, Patrick S.M. Dunlop, Hyeok Choi, Wenjun Jiang, Kevin O’Shea, Dionysios D. Dionysiou

Books/Book Chapters

This book chapter discusses the syntheses of various nanomaterials, for green nanotechnology applications in detail. Special attention is given to the development of emerging areas, such as environmental as well as energy materials. Various approaches for preparing nanostructured photocatalysts, such as titanium dioxide, zinc oxide, iron oxide, and metal sulfides, different conventional methods and novel methods, including sol-gel methods, hydrothermal methods, microwave-assisted methods and sonochemical methods are introduced. The use of nanomaterials as photocatalysts, supporting materials for solar cells, and disinfectants is reported for environmental remediation and energy applications. Advanced applications of nanomaterials for water detoxification, air purification, and the …

The Edition, 6th Of November, 2013, Dit News Society

Student Publications

No abstract provided.

The Edition, 20th Of November, 2013, Dit News Society

Student Publications

No abstract provided.

The Edition, 4th Of December, 2013, Dit News Society

Student Publications

No abstract provided.

Who Cares?:Practical Ethics And The Problem Of Underage Users On Social Networking Sites, Brian O'Neill

Articles

Internet companies place a high priority on the safety of their services and on their corporate responsibility towards protection of all users, especially younger ones. However, such efforts are undermined by the large numbers of children who circumvent age restrictions and lie about their age to gain access to such platforms. This paper deals with the ethical issues that arise in this not-so-hypothetical situation. Who, for instance, bears responsibility for children’s welfare in this context? Are parents/carers ethically culpable in failing to be sufficiently vigilant or even facilitating their children’s social media use? Do industry providers do enough to enforce …

World-Class Universities Or World Class Systems?: Rankings And Higher Education Policy Choices, Ellen Hazelkorn

Books/Book chapters

No abstract provided.

How Rankings Are Reshaping Higher Education, Ellen Hazelkorn

Books/Book chapters

No abstract provided.

Increasing The Visibility Of The Quality Of The Ehea: Benchmarking The Total Student Experience, Ellen Hazelkorn

Other resources

No abstract provided.

Yellowstone Over-Snow Vehicle Emission Tests – 2012, John D. Ray, Gary A. Bishop, Brent G. Schuchmann, Chris Frey, Gurdas Sandhu, Brandon Graver

Fuel Efficiency Automobile Test Publications

No abstract provided.

Service-Based Automation Of Software Construction Activities, Marcus Zinn

School of Engineering, Computing and Mathematics Theses

The reuse of software units, such as classes, components and services require professional knowledge to be performed. Today a multiplicity of different software unit technologies, supporting tools, and related activities used in reuse processes exist. Each of these relevant reuse elements may also include a high number of variations and may differ in the level and quality of necessary reuse knowledge. In such an environment of increasing variations and, therefore, an increasing need for knowledge, software engineers must obtain such knowledge to be able to perform software unit reuse activities. Today many different reuse activities exist for a software unit. …

Bayesian Stochastic Differential Equation Modelling With Application To Finance, Muhannad Al-Saadony

School of Engineering, Computing and Mathematics Theses

In this thesis, we consider some popular stochastic differential equation models used in finance, such as the Vasicek Interest Rate model, the Heston model and a new fractional Heston model. We discuss how to perform inference about unknown quantities associated with these models in the Bayesian framework. We describe sequential importance sampling, the particle filter and the auxiliary particle filter. We apply these inference methods to the Vasicek Interest Rate model and the standard stochastic volatility model, both to sample from the posterior distribution of the underlying processes and to update the posterior distribution of the parameters sequentially, as data …

Spaces, Emotion And Heavy Metal Subcultural Control: Music Consumption And Civilising Processes., Gary Sinclair

Doctoral

Despite the longevity, cultural relevance and global popularity of heavy metal, it has been noticeably absent from both the Birmingham School‟s subcultural studies, the Centre for Contemporary Cultural Studies (CCCS) and in consumer community contexts informed by post-subcultural perspectives (e.g., neo-tribes). This study examines the Irish heavy metal scene. The literature review considers the problematic aspects of applying both frameworks (subcultural and post-subcultural) to heavy metal and other similar contexts. I argue that Norbert Elias‟s figurational sociology (relatively underutilised in previous consumer research), can be used to bypass the agency–structure dualism that impedes both approaches. It is also advanced that …

Challenges Encountered In Creating Personalised Learning Activities To Suit Students Learning Preferences, Eileen O'Donnell, Vincent Wade, Mary Sharp, Liam O'Donnell

Books/Book Chapters

This book chapter reviews some of the challenges encountered by educators in creating personalised e-learning activities to suit students learning preferences. Technology-enhanced learning (TEL) alternatively known as e-learning has not yet reached its full potential in higher education. There are still many potential uses as yet undiscovered and other discovered uses which are not yet realisable by many educators. TEL is still predominantly used for e-dissemination and e-administration. This chapter reviews the potential use of TEL to provide personalised learning activities to suit individual students learning preferences. In particular the challenges encountered by educators when trying to implement personalised learning …

Web-Mediated Education And Training Environments: A Review Of Personalised Interactive Learning., Eileen O'Donnell, Mary Sharp, Catherine Mulwa, Vincent Wade

Books/Book Chapters

This chapter reviews the concept of personalised eLearning resources in relation to integrating interactivity into asynchronous learning. Personalised eLearning resources are learning resources which are selected to suit a specific student or trainee’s individual learning requirements. The affordance of personalised eLearning would provide educators with the opportunity to shift away from eLearning content that is retrieved and move towards the provision of personalised interactive content to provide a form of asynchronous learning to suit students at different degree levels. A basic introduction to the concept of ePedagogy in online learning environments is explored and the impacts these systems have on …

A Winning Combination, Tim Obermiller

Illinois Wesleyan University Magazine, 2002-2017

As “head nerd” for the NFL’s Atlanta Falcons, Karl Pierburg ’98 applies his twin passions for football and complex problem solving.

The Development Of Bio-Inspired Cortical Feature Maps For Robot Sensorimotor Controllers, Samantha Adams

School of Engineering, Computing and Mathematics Theses

This project applies principles from the field of Computational Neuroscience to Robotics research, in particular to develop systems inspired by how nature manages to solve sensorimotor coordination tasks. The overall aim has been to build a self-organising sensorimotor system using biologically inspired techniques based upon human cortical development which can in the future be implemented in neuromorphic hardware. This can then deliver the benefits of low power consumption and real time operation but with flexible learning onboard autonomous robots. A core principle is the Self-Organising Feature Map which is based upon the theory of how 2D maps develop in real …

A Semantic Web Based Search Engine With X3d Visualisation Of Queries And Results, Konstantinos Gkoutzis

School of Engineering, Computing and Mathematics Theses

The Semantic Web project has introduced new techniques for managing information. Data can now be organised more efficiently and in such a way that computers can take advantage of the relationships that characterise the given input to present more relevant output. Semantic Web based search engines can quickly educe exactly what is needed to be found and retrieve it while avoiding information overload. Up until now, search engines have interacted with their users by asking them to look for words and phrases. We propose the creation of a new generation Semantic Web search engine that will offer a visual interface …

On Reducing The Decoding Complexity Of Shingled Magnetic Recording System, Nadia Awad

School of Engineering, Computing and Mathematics Theses

Shingled Magnetic Recording (SMR) has been recognised as one of the alternative technologies to achieve an areal density beyond the limit of the perpendicular recording technique, 1 Tb/in2, which has an advantage of extending the use of the conventional method media and read/write head. This work presents SMR system subject to both Inter Symbol Interference (ISI) and Inter Track Interference (ITI) and investigates different equalisation/detection techniques in order to reduce the complexity of this system. To investigate the ITI in shingled systems, one-track one-head system model has been extended into two-track one-head system model to have two interfering tracks. Consequently, …

Two Decades Of Rpl/Apel In Ireland: Practitioner Views, Anne Murphy

Level 3

My first involvement with APEL was in 1990 when I was invited to design a system by which cohorts of experiences practitioners in the disability training sector could achieve a sectoral qualification primarily through recognition of prior certificated and experiential learning. A taught route to the particular qualification was already in operation in partnership between the Adult Education Centre in St Patrick’s College, Maynooth (now National University of Ireland, Maynooth) and the National Rehabilitation Board. The trainers’ qualification was an essential element of quality assurance for the sector with funding support provided by the EU Social Fund. However, it was …

Regional Integration Of Renewable Energy Systems In Ireland: The Role Of Hybrid Energy Systems For Small Communities, Craig Goodbody, Eileen Walsh, Kevin Mcdonnell, Philip Owende

Articles

Due to a lack of indigenous fossil energy resources, Ireland’s energy supply constantly teeters on the brink of political, geopolitical, and geographical unease. The potential risk to the security of the energy supply combined with the contribution of anthropogenic greenhouse gas emissions to climate change gives a clear indication of Ireland's need to reduce dependency on imported fossil fuels as primary energy source. A feasibility analysis to investigate the available renewable energy options was conducted using HOMER software. The Net Present Cost, the Cost of Energy, and the CO2 emissions of each potential energy combination were considered in determining the …

Manual Evaluation Of Synthesised Sign Language Avatars, Robert G. Smith Mr, Brian Nolan Dr.

Conference Papers

The evaluation discussed in this paper explores the role that underlying facial expressions might have regarding understandability in sign language avatars. Focusing specifically on Irish Sign Language (ISL), we examine the Deaf community’s appetite for sign language avatars. The work presented explores the following hypothesis: Augmenting an existing avatar with various combinations of the 7 widely accepted universal emotions identified by Ekman [1] to achieve underlying facial expressions, will make that avatar more human-like and consequently improve usability and understandability for the ISL user. Using human evaluation methods [2] we compare an augmented set of avatar utterances against a baseline …

Generation Of Intracellular Reactive Oxygen Species And Genotoxicity Effect To Exposure Of Nanosized Polyamidoamine (Pamam) Dendrimers In Plhc-1 Cells In Vitro, Hugh Byrne, Pratap Naha

Articles

Polyamidoamine (PAMAM) dendrimers elicit systematically variable cyto- and eco-toxic responses, promising the basis for structure activity relationships governing nanotoxicological responses. Increased production of intracellular reactive oxygen species (ROS), genotoxicity and apoptosis due to in-vitro exposure of hepatocellular carcinoma cells to dendrimer generations G-4, G-5 and G-6 is demonstrated. A generation dependent increase in ROS and genotoxicity was observed, consistent with our previous studies. The responses correlate well with the number of surface amino groups per generation. Although ROS production initially increases approximately linearly, it saturates at higher doses. Notably, normalised to molar dose of surface amino groups, the dose-dependent ROS …