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Articles 121 - 150 of 202
Full-Text Articles in Engineering
Reflections On Energy, Greenhouse Gases, And Carbonaceous Fules, Eugene Coyle, William Grimson, Biswajit Basu, Mike Murphy
Reflections On Energy, Greenhouse Gases, And Carbonaceous Fules, Eugene Coyle, William Grimson, Biswajit Basu, Mike Murphy
Books/Book chapters
In this chapter, we review the history of man’s dependence on carbonaceous fuels for survival, beginning with pre-industrial civilizations, during which charcoal was pro- cessed for thousands of years to smelt iron and copper. In the eighteenth and nineteenth centuries, however, coke and coal became prime energy resources which powered the engine rooms of the industrial revolution. Accompanying the economic and societal benefits of this period was the recognition of the damage resulting from smog owing to excessive burning of coal, which affected both human health and the natural envi- ronment. These pivotal centuries laid the foundation for the advancement …
Employment Opportunities And Skills Requirements For Construction And Property Surveying 2014 - 2018, Roisin Murphy, Stephen Walsh
Employment Opportunities And Skills Requirements For Construction And Property Surveying 2014 - 2018, Roisin Murphy, Stephen Walsh
Reports
In Autumn 2012, a number of Society members expressed their increasing struggle to find qualified graduate surveyors to fill vacancies in their practices. At the same time, members working in academic institutions reported a severe reduction in the number of students enrolling on surveying courses at third level.
Educational Programmes For Spatial Information Sciences In The Technological University Of Dublin, William Prendergast, Eamonn Murphy, Audrey Martin, Avril Behan
Educational Programmes For Spatial Information Sciences In The Technological University Of Dublin, William Prendergast, Eamonn Murphy, Audrey Martin, Avril Behan
Conference papers
The ever increasing spatial information needs of society, the rapid development of new surveying technologies, and the global demand for appropriately qualified surveyors, have triggered a radical re-evaluation of geomatics education worldwide. Significant enhancements have been made to the educational programmes in the spatial information science discipline in the Technological University of Dublin’s (DIT) during the last decade including the provision of a BSc in Geomatics and various masters’ programmes to cater for the increasingly specialised needs of the Geographic Information sector in Ireland.
Futures Methodology As An Analysis And Planning Tool Within The Commercial Real Estate Industry, An Interpretative Study, Dominika Brodowicz
Futures Methodology As An Analysis And Planning Tool Within The Commercial Real Estate Industry, An Interpretative Study, Dominika Brodowicz
Doctoral
Currently, the majority of methods used in the commercial real estate analysis and planning processes have retrospective and quantitative roots and are based on historic data and trend extrapolation. This approach is based on the assumption that the relationships among key commercial property market variables and trends are constant and develop in a predictable manner into the future. Meanwhile, contemporary real estate companies, which are the subject of this study, are faced with rapid change, often of a discontinuous nature, in their external and internal environments. Furthermore, some of the challenges facing this industry, like social sustainability and a shift …
Purchasing Green Transport And Logistics Services: Implications For Small Business, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
Purchasing Green Transport And Logistics Services: Implications For Small Business, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
Articles
Considering its strong environmental impact, logistics plays a critical role in green supply chain management. It provides strategic links in the supply chain and is an essential function in the delivery of green products to the consumer. There is a general consensus on the fact that more environmentally sustainable companies may be achieved only if transport and logistics activities also become greener. To achieve this objective, buyer companies need to incorporate green considerations in the purchasing of transport and logistics services. This appears particularly challenging for small and medium sized enterprises (SMEs) because of their traditional lack of managerial, organisational …
An Energy Survey Of The Church Lane Building At Dit, Joseph Teehan
An Energy Survey Of The Church Lane Building At Dit, Joseph Teehan
Other resources
Within the European Union, the collective governments have introduced broad energy policies in order to increase energy efficiency and improve energy performance in new and existing buildings, within each member state. The following dissertation considers energy and how energy is used within the context of global and local consumption in an extensive literature review. Where does the future lie for Ireland and its energy sources? Policies, standards and regulations associated with energy efficiency and the Energy Performance of Buildings Directive (EPBD) are defined and briefly explained. The status of how well the response from the commercial building market to Building …
A Case Study Investigation On Purchasing Green Transport And Logistics Services, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
A Case Study Investigation On Purchasing Green Transport And Logistics Services, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
Conference papers
In the context of green supply chain management, green purchasing has received increased attention over the past decade and the strategic importance of introducing green aspects into purchasing practices has been recognised. Despite this growing importance, little has been written in relation to purchasing green transport and logistics services. Considering the strong environmental impact associated with transport and logistics activities, much remains to be learned concerning buyer’s practices when sourcing more sustainable services from third party logistics companies (3PLs). The aim of this paper is to explore practices of buying green transport and logistics services in three different European countries …
The Effect Of Clusters Within Crowds Of Pedestrians On The Vertical Response Of A Flexible Footbridge, Joe Keogh, Colin C. Caprani, Paul Archbold, Paul Fanning
The Effect Of Clusters Within Crowds Of Pedestrians On The Vertical Response Of A Flexible Footbridge, Joe Keogh, Colin C. Caprani, Paul Archbold, Paul Fanning
Conference papers
The issue of excessive vibrations of footbridges due to the passage of pedestrians has been well documented in the past decade. Despite this there still remains great uncertainty as to how to predict the acceleration response of a footbridge due to crowd loading. This paper investigates the vibration response of a flexible footbridge subjected to crowd loading. Using a statistical model which caters for the variability of pedestrians, the vibration response of the footbridge is obtained. In this work, the effect of social groups or clusters of pedestrians in a crowd is investigated. Herein a cluster is defined as two …
Evaluation Of A Prototype Desktop Virtual Reality Model Developed To Enhance Electrical Safety And Design In The Built Environment, Martin Barrett, Jonathan Blackledge
Evaluation Of A Prototype Desktop Virtual Reality Model Developed To Enhance Electrical Safety And Design In The Built Environment, Martin Barrett, Jonathan Blackledge
Articles
The use of Desktop Virtual Reality (VR) systems for enhancing electrical safety and engineering design is a novel prospect for both practicing and student electrical services engineers. This innovative approach, which can be readily accessed via the World Wide Web, constitutes a marked shift in conventional learning and design techniques to a more immersive, interactive and intuitive working and learning environment. This paper initially identifies the unique characteristics of desktop web based VR technologies and highlights the educational affordances offered by working in such an environment. Subsequently, using a prototype model titled ‘Virtual Electrical Services’, a case study is carried …
Non-Gaussian Anisotropic Diffusion Processing For Medical Imagining Using The Osirix Dicom Viewer, Jonathan Blackledge, Matthew Blackledge, Jane Courtney
Non-Gaussian Anisotropic Diffusion Processing For Medical Imagining Using The Osirix Dicom Viewer, Jonathan Blackledge, Matthew Blackledge, Jane Courtney
Articles
Medical imaging is a fertile area for computer graphics, image processing and real time visualization. In this paper we present a method for reducing noise in CT (Computed Tomography) and MR (Magnetic Resonance) images that (in addition to other noise sources) is characteristic of the numerical procedures required to construct the images, namely, the (inverse) Radon Transform. In both cases, MR imaging in particular, an additional noise source is due to the process of diffusion thereby predicating use of the Anisotropic Diffusion method for noise suppression. This method is based on a diffusion model for noise generation where the Diffusivity …
Analysis Of Wind Velocity And The Quantification Of Wind Turbulence In Rural And Urban Environments Using The Levy Index And Fractal Dimension, Jonathan Blackledge, Eugene Coyle, Niall Mccoy, Derek Kearney, Keith Sunderland, Thomas Woolmington
Analysis Of Wind Velocity And The Quantification Of Wind Turbulence In Rural And Urban Environments Using The Levy Index And Fractal Dimension, Jonathan Blackledge, Eugene Coyle, Niall Mccoy, Derek Kearney, Keith Sunderland, Thomas Woolmington
Articles
This paper is concerned with a quantitative and comparative analysis of wind velocities in urban and rural environments. It is undertaken to provide a route to the classification of wind energy in a rural and urban setting. This is a common problem and the basis of a significant focus of research into wind energy. In this paper, we use a non-Gaussian statistical model to undertake this task, and, through a further modification of the data analysis algorithms used, extend the model to study the effect of wind turbulence, thereby introducing a new metric for this effect that is arguably superior …
Life Cycle Cost Analysis Under Ireland's Capital Works Management Framework, Dermot Kehily, Alan Hore
Life Cycle Cost Analysis Under Ireland's Capital Works Management Framework, Dermot Kehily, Alan Hore
Conference papers
The Capital Works Management Framework (CWMF) is a structure that has been developed to deliver the Irish government’s objectives in relation to public sector construction procurement reform. This research provides practical guidance and assistance for construction cost professionals in carrying out Whole Life Cycle Cost Analysis (WLCCA) and producing Life Cycle Cost Models(LCCMs) under the CWMF. The research outlines how LCCA calculations can be carried out for cost planning purposes and recommends a standard methodology for presenting LCCMs under the CWMF. The CWMF states that Whole Life Costs (WLC) are an important consideration throughout the design process and should be …
Weak Gradient Inverse Scattering Solutions, Jonathan Blackledge
Weak Gradient Inverse Scattering Solutions, Jonathan Blackledge
Conference papers
The paper briefly reviews formal methods and associated conditions for solving the forward and inverse Schrodinger ¨ scattering problem for a three-dimensional elastic scattering potential. These methods are based on an application of the Green’s function and are conditional upon the properties of the scattering potential, e.g. that the scattering potential is a ‘weak scatterer’. In this paper, we explore an alternative route to solving the problem which depends on properties imposed on the scattered wavefield rather than the scattering potential. In particular, we explore the case when the gradient of the scattered wavefield is weak relative to its frequency. …
Non-Gaussian Analysis Of Wind Velocity Data For The Determination Of Power Quality Control, Jonathan Blackledge, Eugene Coyle, Derek Kearney
Non-Gaussian Analysis Of Wind Velocity Data For The Determination Of Power Quality Control, Jonathan Blackledge, Eugene Coyle, Derek Kearney
Articles
The quality of power (i.e. the sustainable power output as a function time) of any wind dependent energy converter (including wind turbines and wave energy converters) is determined by many design and environmental factors but timedependent variations in the wind speed are arguably the most important. In this paper we consider a non-Gaussian model for analysing and then simulating wind velocity data. In particular, we consider a Lévy distribution for the statistical characteristics of wind velocity and show how this distribution can be used to derive a stochastic fractional diffusion equation for the wind velocity as a function of time …
Using Virtual Reality To Enhance Electrical Safety And Design In The Built Environment, Martin Barrett, Jonathan Blackledge, Eugene Coyle
Using Virtual Reality To Enhance Electrical Safety And Design In The Built Environment, Martin Barrett, Jonathan Blackledge, Eugene Coyle
Articles
— Electricity and the inherent risks associated with its use in the built environment have long since been a priority for the electrical services industry and also the general public who must live and work in this environment. By its nature virtual reality has the advantage of being safe for both the user and equipment. In addition, it offers the user an opportunity to be exposed to a range of scenarios and conditions that either occur infrequently or are hazardous to replicate. This paper presents a prototype desktop virtual reality model, to enhance electrical safety and design in the built …
Community-Based Internet Usage Policy Development, Mashael Alhawsah
Community-Based Internet Usage Policy Development, Mashael Alhawsah
Students Learning with Communities
The Internet is a tool for learning and obtaining a vast amount of information, but it is a tool which also has associated problems. The number of risks associated with the internet has been increasing both in number and in danger. As a result, protection measures must be developed to minimize the risks. One of the most important groups of such measures are Internet Usage Policies. An Internet Usage Policy addresses the problem by providing a set of guideline to be followed which minimize the risks. This dissertation investigates the development of Internet Usage Policy with the assistance of the …
Combining Mobile Technologies For Accurate, Open Source, Privacy Sensitive, Zero Cost, Location Determination, Seamus Rooney
Combining Mobile Technologies For Accurate, Open Source, Privacy Sensitive, Zero Cost, Location Determination, Seamus Rooney
Doctoral
Determining the location of an object or individual using a mobile device (e.g. cell phone) is an important aspect of modern information gathering. Various solutions have been proposed which all have their strengths and weaknesses. To date, no solution has been devised for a mobile device that will work effectively in multiple environments and without assistance from network-provider connections1. To address this, it is argued that the current state of the art can be advanced using a hybrid approach that combines a number of sensor technologies to provide a more reliable, and accurate mobile location determination that functions in multiple …
Rainwater Harvesting And Greywater Treatment Systems For Domestic Application In Ireland, Zhe Li, Fergal Boyle, Anthony Reynolds
Rainwater Harvesting And Greywater Treatment Systems For Domestic Application In Ireland, Zhe Li, Fergal Boyle, Anthony Reynolds
Articles
Water shortage has been recognised as one of the key issues facing many countries. Fortunately, there are relatively abundant water resources available in Ireland because of its plenty of rainfall. However, Ireland will inevitably encounter water shortage in the future, especially in urban areas. The water consumption per capita per day in Ireland is one of the highest in Europe. The water demand is still increasing due to population growth and higher standard of living. The use of domestic rainwater harvesting and greywater treatment systems has the potential to supply nearly 94% of domestic water in Irish households. The utilisation …
Gate 3 Grid Connection Group Processing Approach:An Analysis, John Leahy
Gate 3 Grid Connection Group Processing Approach:An Analysis, John Leahy
Msc. in Energy Management
The aim of this project is to analyse the Group Processing Approach (the “GPA”) to renewable generator grid connections, and in particular the Gate 3 process which is the latest round of the GPA that is currently being implemented in the Republic of Ireland, to determine if it is the most effective approach for connecting new renewable generation. Gate 3 is the third series of the GPA for connecting renewable generation to the Irish Electricity grid where applications are processed in groups or batches. The size of the Gate 3 has bee capped at 3,900MW with applicants being selected based …
Rebuilding After Disaster - Engineering Lessons From The 2004 Tsunami, Liam Mccarton
Rebuilding After Disaster - Engineering Lessons From The 2004 Tsunami, Liam Mccarton
Articles
On 26th December 2004 a magnitude 9 earthquake occurred off the west coast of northern Sumatra, Indonesia. The sudden and violent vertical displacement of the sea floor caused a disturbance to the overlying water column, which generated waves (tsunami) that propagated rapidly across the whole of the Indian Ocean. Typically, in open ocean waters, these waves have long wavelengths of the order of 200km and low trough to crest amplitudes. These properties allow them to conserve energy as they propagate over large distances. As the waves enter the shallower waters of coastal areas, their amplitude increases dramatically and their velocity …
Thermal Robotic Arm Controlled Spraying Via Robotic Arm And Vision System, Dermot Breen
Thermal Robotic Arm Controlled Spraying Via Robotic Arm And Vision System, Dermot Breen
Doctoral
The Tribology Surface Engineering industry is a worldwide multi billion euro industry with significant health and safety risks. The thermal spraying sector of this industry employs the technique of applying molten surface coating material to a substrate via a thermal spray process which is implemented either by manual spraying or pre-programmed robotic systems. The development of autonomous robotic systems for thermal spraying surface coating would significantly improve production and profitability over pre-programmed systems and improve health and safety over manual spraying. The aim of this research was to investigate and develop through software simulation, physical modelling and testing the development …
Comparison Of Indian Ppp Construction Industry And European Ppp Construction Industry: Process, Thresholds And Implementation, Louis Gunnigan, Renuka Rajput
Comparison Of Indian Ppp Construction Industry And European Ppp Construction Industry: Process, Thresholds And Implementation, Louis Gunnigan, Renuka Rajput
Conference papers
Abstract Since the 1990’s, there has been a rapid rise of Public Private Partnerships (PPPs) across the world. Governments in developing as well as developed countries are increasingly using this procurement method to bridge the much needed infrastructure gap. PPPs are seen as an important tool for producing an accelerated and larger pipeline of infrastructure investments, and catching up with the infrastructure deficit. Arguably, this is why developed and especially developing countries are very keen on PPP models. This paper will compare the PPP procurement process followed in Europe compared to India and presents a thorough review of literature on …
Quality Indicators For Engineering And Technology Education, Michael Dyrenfurth, Mike Murphy, Gary Bertoline
Quality Indicators For Engineering And Technology Education, Michael Dyrenfurth, Mike Murphy, Gary Bertoline
Conference papers
In recent years the development and use of university rankings, comparisons, and/or league tables has become popular and several methodologies are now frequently used to provide a comparative ranking of universities. These rankings are often based on research and publication activity and also not uncommonly focus on indicators that can be measured rather than those that should be measured. Further, the indicators are generally examined for the university as a whole rather than for university divisions, departments or programs. Implicit also is that placement in the rankings is indicative of quality. This paper provides an overview of the methodologies used …
Concurrent Masters Degrees Across The Atlantic: Innovations, Issues And Insights, Michael Dyrenfurth, Mike Murphy, Gary Bertoline, Robert Herrick, Kathryne Newton, Gareth O'Donnell, Donal Mchale, Nuria Castell, Miquel Barcelo, Didac Balas, Maria Ribera Sancho, Jordi Garcia
Concurrent Masters Degrees Across The Atlantic: Innovations, Issues And Insights, Michael Dyrenfurth, Mike Murphy, Gary Bertoline, Robert Herrick, Kathryne Newton, Gareth O'Donnell, Donal Mchale, Nuria Castell, Miquel Barcelo, Didac Balas, Maria Ribera Sancho, Jordi Garcia
Conference papers
Atransatlantic degree consortium to implement a four-semester dual masters degree initiative across a three-institution consortium consisting of Purdue University (USA), the Technological University Dublin (DIT), and the Universitat Politècnica de Catalunya (Spain) is presented in this paper.
A Computational Analysis Of Cognitive Effort, Luca Longo, Stephen Barrett
A Computational Analysis Of Cognitive Effort, Luca Longo, Stephen Barrett
Books/Book Chapters
Cognitive effort is a concept of unquestionable utility in understanding human behaviour. However, cognitive effort has been defined in several ways in literature and in everyday life, suffering from a partial understanding. It is common to say “Pay more attention in studying that subject” or “How much effort did you spend in resolving that task?”, but what does it really mean? This contribution tries to clarify the concept of cognitive effort, by introducing its main influencing factors and by presenting a formalism which provides us with a tool for precise discussion. The formalism is implementable as a computational concept and …