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Full-Text Articles in Engineering

An Analysis Of The Barriers To And Drivers Of Green Public Procurement In Achieving A More Sustainable Construction Industry, Myles Keaveney, Paul Butler Mar 2104

An Analysis Of The Barriers To And Drivers Of Green Public Procurement In Achieving A More Sustainable Construction Industry, Myles Keaveney, Paul Butler

Conference papers

The public sector in Ireland possesses enormous purchasing power which has the strength to affect production and consumption trends in all market sectors. Environmental purchasing tools such as Green Public Procurement (GPP) are seen by many as the solution to greener purchasing decisions in order to obtain and maintain not only a more sustainable construction sector but also a more sustainable economy. The purpose of this research is to determine and examine the key barriers to and drivers of implementing GPP in public procurement departments in order to reduce the effect construction works have on the environment. There was limited ...


A Comparative Study Of Defeasible Argumentation And Non-Monotonic Fuzzy Reasoning For Elderly Survival Prediction Using Biomarkers, Lucas Rizzo, Ljiljana Majnaric, Luca Longo Nov 2018

A Comparative Study Of Defeasible Argumentation And Non-Monotonic Fuzzy Reasoning For Elderly Survival Prediction Using Biomarkers, Lucas Rizzo, Ljiljana Majnaric, Luca Longo

Conference papers

Computational argumentation has been gaining momentum as a solid theoretical research discipline for inference under uncertainty with incomplete and contradicting knowledge. However, its practical counterpart is underdeveloped, with a lack of studies focused on the investigation of its impact in real-world settings and with real knowledge. In this study, computational argumentation is compared against non-monotonic fuzzy reasoning and evaluated in the domain of biological markers for the prediction of mortality in an elderly population. Different non-monotonic argument-based models and fuzzy reasoning models have been designed using an extensive knowledge base gathered from an expert in the field. An analysis of ...


A Comparative Analysis Of Key Elements Of The Strategic Decision-Making Process Across Construction Professional Services Firms: Evidence From The Irish Construction Industry, Oluwasegun O. Seriki, Roisin Murphy Sep 2018

A Comparative Analysis Of Key Elements Of The Strategic Decision-Making Process Across Construction Professional Services Firms: Evidence From The Irish Construction Industry, Oluwasegun O. Seriki, Roisin Murphy

Conference papers

The Irish construction industry is experiencing a well-established growth phase following a prolonged recession. While the economic impact has been well documented, there remains less emphasis on discipline-specific studies pertaining to strategy within construction firms in Ireland. Additionally, evidence regarding strategic management within the construction sector is predominantly concentrated on contracting organisations, with less emphasis on highly knowledge-intensive professional service firms (PSFs). As the construction sector in Ireland continues its sustained growth, there have been increased calls within the industry for further collaboration between key stakeholders. However, exploring collaboration within project-centric firms without understanding the individual strategic decision-making processes within ...


The Role Of Digitisation In The Strategic Planning Process Of Irish Quantity Surveying(Qs) Practices, Michael Adesi, Roisin Murphy, Dermot Kehily Sep 2018

The Role Of Digitisation In The Strategic Planning Process Of Irish Quantity Surveying(Qs) Practices, Michael Adesi, Roisin Murphy, Dermot Kehily

Conference papers

Digitisation is important to the transformation of many aspects of the construction industry such as strategic planning process in QS practices. Quantity Surveying (QS) practices largely apply digital technologies in construction project delivery, while neglecting the use of digital technologies in the strategic planning process. The aim of this paper is to investigate the role of digitisation in the strategic planning process of QS practices operating in Ireland. The study adopts a quantitative research methodology which is the first phase of an ongoing research project, by administering survey questionnaires to senior management of QS practices in Ireland. The findings of ...


Introducing A New Cement Hydration And Microstructure Model, Niall Holmes, Anselm Griffin, Bernard Enright, Denis Keliher Aug 2018

Introducing A New Cement Hydration And Microstructure Model, Niall Holmes, Anselm Griffin, Bernard Enright, Denis Keliher

Conference papers

This paper presents a new cement hydration model to predict the microstructure evolution of hydrating tricalcium silicate (C3S). The model is written in MATLAB and employs the continuum approach and integrated particle kinetic relationships to show the change in C3S and the growth of Calcium Silicate Hydrate (C-S-H) and Calcium Hydroxide (CH) in the pore space over time.

Cement hydration is a highly complex process. While hydration models should never completely remove experimental analysis, they are an aid to better understand cement hydration and microstructure development by providing a method to analyse a large number of pastes with different cementitious ...


The Academic Perspective: A Study Of Academic Conceptions Of The Importance Of Professional Skills In Engineering Programmes In Ireland, Una Beagon May 2018

The Academic Perspective: A Study Of Academic Conceptions Of The Importance Of Professional Skills In Engineering Programmes In Ireland, Una Beagon

Conference papers

This presentation outlines a phenomenographic research study which aims to explore engineering academics experiences and conceptions towards developing professional skills within engineering students in Ireland. The research is undertaken in two phases. Phase One is an online survey circulated to academics teaching on engineering programmes in Ireland (n=273). Phase Two will consist of in-depth interviews.

The overall phenomenographic study aims to answer the research question;

  • What are the qualitatively different ways that academics experience and conceptualise teaching and the development of professional skills in engineering programmes in Ireland?


Information Technology (It) For Strategy Formulation In Irish Quantity Surveying Firms: A Literature Review, Michael Adesi, Roisin Murphy, Dermot Kehily Apr 2018

Information Technology (It) For Strategy Formulation In Irish Quantity Surveying Firms: A Literature Review, Michael Adesi, Roisin Murphy, Dermot Kehily

Conference papers

The purpose of this study is to provide a critical review of existing studies on strategy to demonstrate the influence of information technology on strategy formulation in quantity surveying practices in Ireland. The paper focuses on the influence of IT on the strategic planning and decision making process of QS practices in Ireland. A key finding from the study supports the potential to apply dynamic capability theory emanating from the Resource Based View (RBV) of the firm to construction Professional Service Firms (PSF’s) in Ireland. The framework presented in this paper has the potential for advancing future research agenda ...


Social Contagion And Knowledge Acquisition In Construction Professional Service Firms, Oluwasegun O. Seriki, Roisin Murphy Apr 2018

Social Contagion And Knowledge Acquisition In Construction Professional Service Firms, Oluwasegun O. Seriki, Roisin Murphy

Conference papers

The construction industry in Ireland, including professional service firms (PSF’s) operating therein, are undergoing a period of change and uncertainty driven by economic, demographic, political and technological factors. While considerable evidence exists demonstrating the relationship between environmental turbulence on organisational decision making, there remains a distinct lack of focus on behavioural patterns affecting decision-making process of construction firms. Social contagion (SC) theory asserts that the spread of ideas, attitudes, or behaviour patterns in a group is achieved through imitation and conformity, and is well established within social sciences research, and is increasingly being used to analyse organisational behaviour. However ...


Study Of Mm-Wave Microstrip Patch Array On Curved Substrate, Zeeshan Ahmed, Kansheng Yang, Patrick Mcevoy, Max Ammann Apr 2018

Study Of Mm-Wave Microstrip Patch Array On Curved Substrate, Zeeshan Ahmed, Kansheng Yang, Patrick Mcevoy, Max Ammann

Conference papers

A millimetre wave rectangular microstrip patch antenna array for fifth generation communications (5G) applications is presented. With the increase in demand for high data rates and capacity, there is a need to include mm-Wave frequencies for 5G. The 4×2 patch array is simulated and fabricated on a Rogers RT/Duroid 5880 substrate with a thickness of 0.25 mm. The effects of bending the substrate on the antenna performance are also presented. The experimental results show a fractional bandwidth and gain of more than 3% and 16.1 dBi, respectively.


Quantity Surveying Professional Apprenticeships: A Paragon For The Supply Of Talent In The Irish Construction Industry, Eoghan Ó Murchadha, Roisin Murphy Jan 2018

Quantity Surveying Professional Apprenticeships: A Paragon For The Supply Of Talent In The Irish Construction Industry, Eoghan Ó Murchadha, Roisin Murphy

Conference papers

The construction industry in Ireland has undergone considerable change in the last decade, the effect of which has resulted in a legacy malfunction in the construction labour market. The recent construction downturn led to high levels of construction unemployment, resulting in the mass emigration of construction professionals. Additionally, perceptions of job uncertainty in construction deterred new entrants into construction-related training and education programmes such as Quantity Surveying. If a skills gap is allowed to prevail, then there is a tangible threat to the industry’s cost competitiveness. As such, value for money becomes merely theoretical, and the cost to the ...


A Review Of Multimode Interference In Tapered Optical Fibers And Related Applications, Pengfei Wang, Haiyan Zhao, Xianfan Wang, Gerald Farrell, Gilberto Brambilla Jan 2018

A Review Of Multimode Interference In Tapered Optical Fibers And Related Applications, Pengfei Wang, Haiyan Zhao, Xianfan Wang, Gerald Farrell, Gilberto Brambilla

Conference papers

In recent years, tapered optical fibers (TOFs) have attracted increasing interest and developed into a range of devices used in many practical applications ranging from optical communication, sensing to optical manipulation and high-Q resonators. Compared with conventional optical fibers, TOFs possess a range of unique features, such as large evanescent field, strong optical confinement, mechanical flexibility and compactness. In this review, we critically summarize the multimode interference in TOFs and some of its applications with a focus on our research project undertaken at the Optoelectronics Research Centre of the University of Southampton in the United Kingdom.


Quantity Surveying Professional Apprenticeships: A Paragon For The Supply Of Talent In The Irish Construction Industry, Eoghan Ó Murchadha, Roisin Murphy Jan 2018

Quantity Surveying Professional Apprenticeships: A Paragon For The Supply Of Talent In The Irish Construction Industry, Eoghan Ó Murchadha, Roisin Murphy

Conference papers

The construction industry in Ireland has undergone considerable change in the last decade, the effect of which has resulted in a legacy malfunction in the construction labour market. The recent construction downturn led to high levels of construction unemployment, resulting in the mass emigration of construction professionals. Additionally, perceptions of job uncertainty in construction deterred new entrants into construction-related training and education programmes such as Quantity Surveying. If a skills gap is allowed to prevail, then there is a tangible threat to the industry’s cost competitiveness. As such, value for money becomes merely theoretical, and the cost to the ...


Influence Of Cement Type On The Efficiency Of Electrochemical Chloride Extraction, Brian Norton, Sean Bond, Chahrazed Osmani, Niall Holmes Jan 2018

Influence Of Cement Type On The Efficiency Of Electrochemical Chloride Extraction, Brian Norton, Sean Bond, Chahrazed Osmani, Niall Holmes

Conference papers

No abstract provided.


The Acquisition Of Knowledge And Expertise In Construction: Understanding Construction Professionals, Lloyd Scott, Sittimont Kanjanabootra Jan 2018

The Acquisition Of Knowledge And Expertise In Construction: Understanding Construction Professionals, Lloyd Scott, Sittimont Kanjanabootra

Conference papers

Education programs these days especially in Construction Management have been designed and updated to response to market and stakeholder needs. However, there still exists a need for educators to understand how construction practitioners develop their expertise. Understanding the development of expertise is essential for providers of university education and training to enable them to develop programs to establish on which new professionals can better develop their appropriate expertise. This paper builds on earlier research and further explores how expertise develops in construction professionals. It also explores the similarities and differences in development of that expertise in construction practitioners from the ...


The Impact Of Brexit On Cross-Border Trade By The Construction Sector In Ireland: An Exploratory Study, Tara Brooks, Duga Ewuga, Lloyd Scott, John Spillane Jan 2018

The Impact Of Brexit On Cross-Border Trade By The Construction Sector In Ireland: An Exploratory Study, Tara Brooks, Duga Ewuga, Lloyd Scott, John Spillane

Conference papers

Cross-border co-operation can foster learning and contribute positively to business performance and social cohesion. This paper considers construction firms' economic motivation for co-operation around the Ireland - Northern Ireland border. This area, while impacted by the Brexit uncertainty, shares many of the economic and developmental characteristics of border areas throughout Europe. The purpose of the study is to investigate the impact of Brexit on cross border trade by the construction sector in Ireland and investigate the current tensions and barriers to that sector. A qualitative methodology adopted a literature review and semi-structured interview strategy. Data was collected from purposively selected contractors ...


Examining A Hate Speech Corpus For Hate Speech Detection And Popularity Prediction, Filip Klubicka, Raquel Fernandez Jan 2018

Examining A Hate Speech Corpus For Hate Speech Detection And Popularity Prediction, Filip Klubicka, Raquel Fernandez

Conference papers

As research on hate speech becomes more and more relevant every day, most of it is still focused on hate speech detection. By attempting to replicate a hate speech detection experiment performed on an existing Twitter corpus annotated for hate speech, we highlight some issues that arise from doing research in the field of hate speech, which is essentially still in its infancy. We take a critical look at the training corpus in order to understand its biases, while also using it to venture beyond hate speech detection and investigate whether it can be used to shed light on other ...


A Model For Spurring Organizational Change Based On Faculty Experiences Working Together To Implement Problem-Based Learning, Shannon Chance, Gavin Duffy Jan 2018

A Model For Spurring Organizational Change Based On Faculty Experiences Working Together To Implement Problem-Based Learning, Shannon Chance, Gavin Duffy

Conference papers

This research paper provides a case study of experiences of engineering faculty members at a large public university in Ireland working together to transform their teaching methods. We investigate eight teachers’ experiences of a faculty-led learning community designed to help individuals transform their courses. This small collection of faculty met regularly to discuss ways to facilitate and assess students working in groups. Outside the group’s meetings, participants brought important issues to the forefront of formal and informal discussion with colleagues. Participation in the learning group encouraged, supported, and helped sustain change. This case study seeks to provide insight and ...


Preliminary Findings Of A Phenomenological Study Of Middle Eastern Women’S Experiences Studying Engineering In Ireland, Shannon Chance, Bill Williams Jan 2018

Preliminary Findings Of A Phenomenological Study Of Middle Eastern Women’S Experiences Studying Engineering In Ireland, Shannon Chance, Bill Williams

Conference papers

This paper reports analysis of phenomenological interviews conducted with eight women studying engineering, all Arabic speakers and practicing Muslims, and all from the countries of Oman and Kuwait. Data were collected as part of a larger study of women’s experiences learning engineering in institutions of higher education in Poland, Portugal, and Ireland. The eight women contributing data for the analysis for this paper were all enrolled on engineering degree programs in Dublin, Ireland, where they studied together. The larger study involves conducting longitudinal data via interviews with 47 women around Europe to understand what their undergraduate experiences in STEM ...


Middle Eastern Women’S Experiences Of Collaborative Learning In Engineering In Ireland, Shannon Chance, Bill Williams Jan 2018

Middle Eastern Women’S Experiences Of Collaborative Learning In Engineering In Ireland, Shannon Chance, Bill Williams

Conference papers

This research project uses grounded theory to analyse interviews conducted with eight women from Oman and Kuwait. Members of the sample group were studying together at an institute of technology in Dublin, Ireland. All participants were practicing Muslims as well as Arabic speakers who had learned English. Interview data were collected from participants beginning in 2014 as part of a larger study of women’s experiences learning engineering in Poland, Portugal, and Ireland. The eight women contributing data for this paper were enrolled on a four-year Bachelor of Engineering (B.Eng.) honours-level degree. They comprise the entire population of Middle ...


Operation Of Three-Level Single-Phase Half-Bridge Npc Inverter-Based Shunt Active Power Filter Under Non-Ideal Grid Voltage Condition With Sliding Mode Controller, Samet Biricik, Hasan Komurcugil, Tuan Ngo, Malabika Basu Jan 2018

Operation Of Three-Level Single-Phase Half-Bridge Npc Inverter-Based Shunt Active Power Filter Under Non-Ideal Grid Voltage Condition With Sliding Mode Controller, Samet Biricik, Hasan Komurcugil, Tuan Ngo, Malabika Basu

Conference papers

In this paper, a new control method is presented for a single-phase three-level neutral point clamped half-bridge shunt active power filter with the aim of eliminating the grid current harmonics. It is shown that the proposed control me thod accurately detects the positive-sequence voltage component under distorted grid condition. With this feature, the performance of the single-phase active power filter under distorted grid voltage condition is improved considerably. Furthermore, the imbalance in the capacitor voltages which occurs in the half-bridge topology is eliminated by adding a feedback term to the current control loop.


Comparison Of Grid Array And Microstrip Patch Array Antennas At 28 Ghz, Zeeshan Ahmed, Patrick Mcevoy, Max Ammann Jan 2018

Comparison Of Grid Array And Microstrip Patch Array Antennas At 28 Ghz, Zeeshan Ahmed, Patrick Mcevoy, Max Ammann

Conference papers

A millimeter wave Grid Array Antenna for fifth generation (5G) communications is presented. The 20 cell, nearly-rhombic, 40×40 mm2 Grid Array Antenna structure is simulated and fabricated on a Rogers RT/Duroid 5880 substrate with thickness of 0.25 mm. The grid array has |S11|


Is It Worth It? Budget-Related Evaluation Metrics For Model Selection, Filip Klubicka, Giancarlo Salton, John Kelleher Jan 2018

Is It Worth It? Budget-Related Evaluation Metrics For Model Selection, Filip Klubicka, Giancarlo Salton, John Kelleher

Conference papers

Projects that set out to create a linguistic resource often do so by using a machine learning model that pre-annotates or filters the content that goes through to a human annotator, before going into the final version of the resource. However, available budgets are often limited, and the amount of data that is available exceeds the amount of annotation that can be done. Thus, in order to optimize the benefit from the invested human work, we argue that the decision on which predictive model one should employ depends not only on generalized evaluation metrics, such as accuracy and F-score, but ...


On The Reliability, Validity And Sensitivity Of Three Mental Workload Assessment Techniques For The Evaluation Of Instructional Designs: A Case Study In A Third-Level Course, Luca Longo Jan 2018

On The Reliability, Validity And Sensitivity Of Three Mental Workload Assessment Techniques For The Evaluation Of Instructional Designs: A Case Study In A Third-Level Course, Luca Longo

Conference papers

Cognitive Load Theory (CLT) has been conceived for instructional designers eager to create instructional resources that are presented in a way that encourages the activities of the learners and optimise their performance, thus their learning. Although it has been researched for many years, it has been criticised because of its theoretical clarity and its methodological approach. In particular, one fundamental and open problem is the measurement of its cognitive load types and the measurement of the overall cognitive load of learners during learning tasks. This paper is aimed at investigating the reliability, validity and sensitivity of existing mental workload assessment ...


Tiled Time Delay Estimation In Mobile Cloud Computing Environments, Ruairí De Fréin Dec 2017

Tiled Time Delay Estimation In Mobile Cloud Computing Environments, Ruairí De Fréin

Conference papers

We present a tiled delay estimation technique in the context of Mobile Cloud Computing (MCC) environments. We examine its accuracy in the presence of multiple sources for (1) sub-sample delays and also (2) in the presence of phase-wrap around. Phase wrap-around is prevalent in MCC because the separation of acoustic sources may be large. We show that tiling a histogram of instantaneous phase estimates can improve delay estimates when phase-wrap around is sig- nificantly present and also when multiple sources are present. We report that error in the delay estimator is generally less than 5% of a sample, when the ...


Stewardship Of International Bim Programmes: Lessons For Ireland, Barry Mcauley, Alan Hore, Roger West, Shiyao Kuang Nov 2017

Stewardship Of International Bim Programmes: Lessons For Ireland, Barry Mcauley, Alan Hore, Roger West, Shiyao Kuang

Conference papers

The support by central government of national Building Information Modelling (BIM) programmes is common throughout the developed world today. To further understand how the different international governments have supported their BIM programmes the BIM Innovation Capability Programme (BICP) research team in Ireland recently completed a comprehensive Global BIM Study to help inform the National BIM Council (NBC) of Ireland in developing a Roadmap to Digital Transition for Ireland’s Construction Sector. This paper details the findings of a more concentrated investigation on a selection of jurisdictions on how particular international BIM programmes are orgainsed, managed and the level of governmental ...


Ireland’S Bim Macro Adoption Study: Establishing Ireland’S Bim Maturity, Barry Mcauley, Alan Hore, Roger West, Mohamad Kassem, Shiyao Kuang Nov 2017

Ireland’S Bim Macro Adoption Study: Establishing Ireland’S Bim Maturity, Barry Mcauley, Alan Hore, Roger West, Mohamad Kassem, Shiyao Kuang

Conference papers

Since 2016 the BIM Innovation Capability Programme (BICP) has captured the capability of the Irish Construction Industry’s and the Higher Education Institutes’ (HEIs) response to the increased requirement for BIM on Irish construction and engineering projects. One of the primary responsibilities of the BICP research team is to collate data to assist the National BIM Council of Ireland in the formulation of a National BIM Roadmap. To assist the Council with this task the BICP research team applied five macro BIM maturity conceptual models to assess Ireland’s BIM maturity. The results from the models were further utilised to ...


Level 1 Before Level 2 – The Irish Bim Mandate, Robert Moore Nov 2017

Level 1 Before Level 2 – The Irish Bim Mandate, Robert Moore

Conference papers

Government Contracts Committee for Construction (GCCC) has prepared a position paper titled ‘A Public Sector BIM Adoption Strategy’, which outlines the context and rationale for the adoption of BIM and puts forward a proposed timeline for adoption, the purpose of this position paper is to invite a response from industry [1]. This paper analyses the position paper on the subject of the implementation of the proposed mandate. The author defines what is implied by UK BIM Levels 0, 1, 2 and 3, and collates the responses from industry to the position paper regarding the implementation plan. This position paper is ...


How Are We Being Informed About Climate Change?, Elisa Perpignan, Oluwasegun O. Seriki, Rollis Jiofack, Derrick Agyapong Nov 2017

How Are We Being Informed About Climate Change?, Elisa Perpignan, Oluwasegun O. Seriki, Rollis Jiofack, Derrick Agyapong

Conference papers

Scientific poster ‘How is Europe being informed about Climate Change?’ This poster was presented as part of the research results that have been delivered on behalf of the Women Partnership for the 'Climate change, migration & me Challenge' which was organised part of the Young Water Professional program of the Amsterdam International Water Week.

The poster won the second prize with the team comprising Elisa Perpignan, Derrick Agyapong, Rollis Jiofack, Oluwasegun Seriki (participating online out of respectively Ghana, Burkina Faso and Ireland), from the case: European Pact for Water. The team was selected to attend the Planetary Security Conference – 12 and ...


Establishing The Key Pillars Of Innovation Required To Execute A Successful Bim Strategy Within A Construction Sme In Ireland, Barry Mcauley, Patrick Carroll Nov 2017

Establishing The Key Pillars Of Innovation Required To Execute A Successful Bim Strategy Within A Construction Sme In Ireland, Barry Mcauley, Patrick Carroll

Conference papers

The recent resurgence of the Irish Construction Industry comes at a time of global transition towards an information revolution, with technology now playing a vital role within our post-recessionary society. BIM is now seen as a core technology at the forefront of this transformational change which can present Construction SMEs with opportunities to new financial ventures. If any SME organisation is to be successful with BIM adoption then innovation must be the starting point. The aim of this paper is to establish the enabling factors required for innovating a BIM strategy within a SME Construction Organisation. The methodology involved a ...


What Lessons Can Be Learned From The Delivery Of The First Building On The Grangegorman Campus Using Building Information Management (Bim)?, Pat O'Sullivan, Avril Behan Nov 2017

What Lessons Can Be Learned From The Delivery Of The First Building On The Grangegorman Campus Using Building Information Management (Bim)?, Pat O'Sullivan, Avril Behan

Conference papers

There is an acceptance that BIM, via data management, can be integrated with FM to reduce costs during the Operations and Maintenance stage of a project. However, what has not been documented is the ‘on the ground’ reality which can be reviewed as a lessons learnt exercise to improve the implementation of BIM FM for future projects. This case study sets out to explore the realities of a client’s adoption of BIM based upon the actual experience of the Greenway Hub. Rather than relying on anecdotal evidence the research was based upon the real practices and experiences of the ...