Digital Commons Network^™

Low-Pass Filtering Or Gain Tuning Free Simple Dc Offset Rejection Technique For Single And Three-Phase Systems, Samet Biricik, Hafiz Ahmed, Mohamed Benbouzid

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This paper aims to address the DC offset rejection problem in grid synchronization algorithm. A simple approach to estimate the unknown grid frequency in the presence of DC offset is proposed for this purpose. Some of the existing techniques available in the literature use either low-pass filter or an additional integrator to eliminate the DC offset. Both approaches require an additional parameter to tune. However, tuning the additional parameter is not straightforward. Moreover, tuning the overall system can be complicated due to the presence of DC offset rejection part. The proposed approach does not require any additional parameter to tune. …

Β-Methylumbelliferone Surface Modification And Permeability Investigations At Pentel™ Graphite Electrodes, Susan Warren, Brian Seddon, Ruth Pilkington, Alison Crossely, Philip Holdway, Eithne Dempsey

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Electrochemical and micro-imaging analysis of a commercial graphite-composite material is presented following electro-oxidation with β-methylumbelliferone. Charge-transfer surface modification was observed for the graphite electrode, presumed to have arisen from adsorbed interfacial umbelliferone moieties. The molecular permeability of the new surface towards a range of similar, yet size-variable (23 Å3–136 Å3) molecular redox probes is discussed. Red-shift fluorescence in confocal microscopy offers further support for the presence of a surface-bound umbelliferone layer. An SEM-platinum profiling technique was used as an imaging tool to map the umbelliferone surface and size-distribution of electroactive sites.

Sustainable And Resilient Construction: Current Status And Future Challenges, Niamh Murtagh, Lloyd Scott, Jingli Fan

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The construction industry globally is one of the most environmentally damaging of sectors. Additionally, the resources consumed and the operational energy requirements of buildings are ‘locked-in’, potentially for decades. The Intergovernmental Panel on Climate Change has recognised construction as a sector in which significant improvements can, and indeed must, be made. But the industry is often argued to be unique, in its multiplicity of stakeholders, transient organisational structures, avoidance of risk and impact on society. The current Virtual Special Issue (VSI) sought to bring together a collection of papers on progress and potential for improvement in the construction sector, in …

Smart Green Communication Protocols Based On Several-Fold Messages Extracted From Common Sequential Patterns In Uavs, Iván García-Magariño, Geraldine Gray, Raquel Lacuesta, Jaime Lloret

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Green communications can be crucial for saving energy in UAVs and enhancing their autonomy. The current work proposes to extract common sequential patterns of communications to gather each common pattern into a single several- fold message with a high-level compression. Since the messages of a pattern are elapsed from each other in time, the current approach performs a machine learning approach for estimating the elapsed times using off-line training. The learned predictive model is applied by each UAV during flight when receiving a several-fold compressed message. We have explored neural networks, linear regression and correlation analyses among others. The current …

Slicing Defamation, Yonathan A. Arbel

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No abstract provided.

Prison-Release Reform And American Decarceration, Kevin Reitz

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No abstract provided.

Regulating The Energy “Free Riders, Alexandra Klass

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No abstract provided.

Law And Economics As We Grow Younger, Francesco Parisi

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The European Association of Law and Economics grants a biennial Lifetime Achievement Award and Honorary Membership to a scholar “for his or her significant contributions to the field of Law and Economics, in particular to the development of this scientific movement in Europe.” This paper is the award lecture delivered by Professor Francesco Parisi at the Annual Meeting of the European Association of Law and Economics, held at Tel-Aviv University on September, 19, 2019.

American Option Pricing: Optimal Lattice Models And Multidimensional Efficiency Tests, Qianru Shang, Brian Byrne

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We introduce a set of lattice techniques to the Leisen‐Reimer and Tian binomial models with a view to accelerating computation time and improving accuracy of American Option valuation. A level of accuracy and efficiency combined can be achieved that surpass commonly used analytical analogues. We compare these efficient lattice models with analytical formulae for pricing different groups of options according to the deepness of American quality and moneyness. Our results reveal that counter to received wisdom, lattices constructs produce greater speed and accuracy for all option categories relative to the best performing closed form American analogues.

Knowledge Management In The Pharmaceutical Industry: Between Academic Research And Industry Regulations, Ahmed Ramy, Mohamed Af Ragab, Amr Arisha

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The pharmaceutical sector is one of the pillars of the world’s economy. A significant proportion of its value lies in intellectual assets generated through continuous innovation and lengthy development cycles within a strictly regulated environment. The purpose of this paper is to address the gap between knowledge management (KM) as an expanding academic discipline in the pharmaceutical industry and at the same time a growing regulatory expectation. A systematic review of 137 refereed KM articles revealed six empirical research themes in the pharmaceutical industry. In a subsequent step, the discovered themes and subthemes were compared with the extant regulatory expectations …

Evaluation Of An Ag85b Immunosensor With Potential For Electrochemical Mycobacterium Tuberculosis Diagnostics, Brian Murphy, Eithne Dempsey

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Tuberculosis remains a major global health concern, especially in the developing world, and monitoring/early detection of the disease relies on low cost technologies that provide rapid and accurate results. Mycobacterium tuberculosis is the responsible bacterial pathogen and it is currently estimated by the World Health Organisation (WHO), that one quarter of the world’s population, mainly in the developing world, is infected with TB. The overall aim of this work was to advance a screening electrochemical sensor for label free detection of Ag85B, a member of the Antigen 85 complex - major secretary protein of M. Tuberculosisand biomarker for disease. An …

Structural Features Of 1,3,4-Thiadiazole-Derived Ligands And Their Zn(Ii) And Cu(Ii) Complexes Which Demonstrate Synergistic Antibacterial Effects With Kanamycin, Dariusz Karcz, Arkadiusz Matwijczuk, Daniel Kaminski, Bernadette Creaven, Katarzyna Lecka-Szlachta, Karolina Starzak

Articles

Classical synthetic protocols were applied for the isolation of three novel 1,3,4-thiadiazole derivatives which were then complexed with the biologically important Cu(II) and Zn(II) ions. All free ligands and their corresponding complexes were characterized using a number of spectroscopic techniques including Ultraviolet-visible (UV–vis), Fluorescence, Infrared (FT-IR), tandem liquid chromatography-mass (LC-MS), X-ray diffraction (XRD), and Nuclear Magnetic Resonance (NMR) spectroscopy (¹H, ¹³C, HSQC, HMBC). The results obtained are consistent with the formation of dihydrate complexes, in which the chelation of the metal ion occurs via one of the thiadiazole nitrogen atoms and the deprotonated hydroxyl group of the …

Importance Of Data Distribution On Hive-Based Systems For Query Performance: An Experimental Study, Hilmi Egemen Ciritoglu, John Murphy, Christina Thorpe

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SQL-on-Hadoop systems have been gaining popularity in recent years. One popular example of SQL-on-Hadoop systems is Apache Hive; the pioneer of SQL-on-Hadoop systems. Hive is located on the top of big data stack as an application layer. Besides the application layer, the Hadoop Ecosystem is composed of 3 different main layers: storage, the resource manager and processing engine. The demand from industry has led to the development of new efficient components for each layer. As the ecosystem evolves over time, Hive employed different execution engines too. Understanding the strengths of components is very important in order to exploit the full …

An Univariable Approach For Forecasting Workload In The Maintenance Industry, Paulo Silva, Fernando Pérez Téllez, John Cardiff

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The forecasting of the workload in the maintenance industry is of great value to improve human resources allocation and reduce overwork. In this paper, we discuss the problem and the challenges it pertains. We analyze data from a company operating in the industry and present the results of several forecasting models.

Macular Pigment Optical Density Fluctuation As A Function Of Pupillary Mydriasis: Methodological Considerations For Dual-Wavelength Autofluorescence, Ekaterina Loskutova, John Butler, Gabriela Hernandez-Martinez, Daniel Ian Flitcroft, James Loughman

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Macular pigment (MP), comprising the dietary carotenoids lutein, zeaxanthin and meso-zeaxanthin, is believed to benefit eye health and vision. Numerous clinical and research devices and techniques are currently available to facilitate MP optical density (MPOD) measurement. One of those techniques, dual-wavelength fundus autofluorescence (AF) is being increasingly used for measurement of MP in the eye. There is substantial methodological variation across the published studies that have employed this technique, including in relation to the use of mydriasis, the possible influence of which does not appear to have been addressed in the literature. This prospective cross-sectional study was designed to investigate …

Irish Construction Cross Border Trade And Brexit: Practitioner Perceptions On The Periphery Of Europe, Tara Brooks, Lloyd Scott, John P. Spillane, Katy Hayward

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The United Kingdom (UK) Brexit vote of June 2016 has created unprecedented uncertainty in the construction industry in Ireland but little research to date has been undertaken on existing construction trading patterns and the potential effects of regulatory divergence and other nontariff barriers in Ireland in this context. In response, this study uses mixed methods to fill this gap in knowledge. The experience of nine construction industry interviewees is probed – five based in Northern Ireland (in the UK) and four from Ireland, which will remain in the EU after the UK leaves. The researchers’ analysis of the qualitative data …

Thermal Analysis And Post Construction Verification, Cormac Flood, Lloyd Scott

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Purpose – The residential sector in Ireland accounted for 25 per cent of energy related CO2 emissions in 2016 through burning fossil fuels, a major contributor to climate change. In support of Ireland’s CO2 reduction targets, the existing housing stock could contribute greatly to the reduction of space-heating energy demand through retrofit. Approximately 50 per cent of Ireland’s 2m dwellings pre-date building regulations and are predominantly of cavity and solid wall construction, the performance of which has not been extensively investigated at present. Although commitment to thermal upgrade/retrofit of existing buildings may increase under future government policies, the poor characterisation …

A Comparison Of High-End Methods For Topographic Modelling Of A Coastal Dune Complex, Chen Suo, Eugene Mcgovern, Alan Gilmer, Conor Cahalane

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In recent years, increasing tourism and development in the coastal dune area of the South East of Ireland have resulted in greater pressure on the environment, resulting in issues including soil erosion, flooding and habitat loss. Topographic mapping across a dune field is important for the development of targeted land management actions that maintain biodiversity and ecological functions. Developments in surveying technology, including LiDAR, terrestrial laser scanners (TLS) and aerial surveying from Remotely Piloted Aircraft Systems (RPAS), have enabled high-resolution and high-accuracy spatial data to be gathered quickly and relatively easily for 3D topographic modelling of a coastal dune complex. …

Trade's Security Exceptionalism, Kathleen Claussen

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At the core of U.S. trade law is an under-studied structural dichotomy. On the one hand, well-established statutory authorities enable the President to eliminate trade barriers through negotiations with U.S. trading partners. On the other hand, different, lesser-known authorities allow the President to erect trade barriers on an exceptional basis where necessary for U.S. economic security. Rather than thinking of free trade as a source of or tool for economic security as political theorists long have, our law codifies these authorities as though they are in contrast to one another-allowing departures from the free trade norm when security so demands. …

Networks Of Empathy, Thomas E. Kadri

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Digital abuse is on the rise. People increasingly use technology to perpetrate and exacerbate abusive conduct like stalking and harassment, manipulating digital tools to control and harm their victims. By some accounts, 95% of domestic-abuse cases involve technology, while a sizeable chunk of the U.S. population now admits to having suffered or perpetrated serious abuse online. To make matters worse, people often trivialize digital abuse or underestimate its prevalence. Even among those who do appreciate its severity, there remains ample disagreement about how to address it.

Although law can be a powerful tool to regulate digital abuse, legal responses are …

The Internet As A Speech Machine And Other Myths Confounding Section 230 Reform, Mary Anne Franks, Danielle Citron

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No abstract provided.

How The Internet Unmakes Law, Mary Anne Franks

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No abstract provided.

Antitrust In Attention Markets: Objections And Responses, John M. Newman

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The modern antitrust enterprise finds itself under attack. Critics complain that enforcement agencies have done nothing to stem an ever-rising tide of market concentration and corporate power. At the center of this critique lies Silicon Valley, home of a new generation of tech giants.

This symposium contribution contends that attention markets represent the largest sector of the modern economy to have gone unnoticed by antitrust regulators. If it is to fulfill its congressional mandate, the antitrust enterprise must begin paying attention to attention markets. A number of objections to this straightforward point have been raised, but each collapses under close …

Asylum Under Attack: Is It Time For A Constitutional Right?, Steve Meili

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No abstract provided.

Help-Seeking From A Counsellor Or Psychotherapist: A Cross-Sectional Study Of Irish Adults, Damien Cassells

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The factors that contribute towards an individual seeking help from a counsellor or psychotherapist for a mental, nervous or emotional problem are explored in this study. A multivariate logistic regression is applied to analyse data from the 2006 National Psychological Wellbeing and Distress Survey. Individuals living in rural areas and in towns with populations of between 5,000 and 10,000 people are found to be less likely to seek counselling, relative to individuals living in Dublin City. Respondents earning the lowest income were less likely to enter therapy compared with respondents earning the highest, while having private health insurance increased the …

Applying Generative Systems To Product Design, Alex Lobos

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Generative Design provides multiple benefits to the development of new products. First is the creation of intricate patterns that resemble natural systems, moving away from geometric shapes typical of mechanical design. Second is the automation of processes where computers perform complex and repetitive tasks that would be too hard or tedious for humans to do. The opportunities that automation provides is frequently considered the main benefit of generative design in the creation of new products, buildings and systems. In both of these approaches, the output that computers generate is driven primarily by a designer’s vision that already has a general …

School Of Culinary Arts & Food Technology, Technological University Dublin Newsletter: Winter, 2019, James Murphy

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The School of Culinary Arts and Food Technology, TU Dublin, Winter Newsletter captured the many events, research, awards, significant contributions and special civic and community activities which the students and staff members of the school have successfully completed up to the Winter period of 2019. The successful completion of these activities would not be possible without the active and on-going support of the 'INSPIRED' friends of Culinary Arts (school supporters) and our school's industry association supporters.

Energy Performance Certification: Misassessment Due To Assuming Default Heat Losses, Ciara Ahern, Brian Norton

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Energy Performance Certificates (EPCs) are issued when dwellings are constructed, sold or leased in the EU. Where the cost of obtaining the required data is prohibitive, EPC assessors use nationally applicable default-values. To ensure that dwellings are not assigned a wrongly-higher EPC rating, a standardised thermal bridging transmittance coefficient (Y-value) is typically adopted for all existing dwellings while worst-case overall heat loss coefficients (U-values) are used. Default U-values are applied to a specific building element type (roof, wall, floor etc.) based on building codes and regulations applicable at time of construction. Due to significant building fabric upgrades, default U-values are …

A-Step 2030 – New Research Project Presents A Picture Of The Skills Needed For Engineers To Solve The Sustainable Development Goals (Sdgs)., Una Beagon

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Communication and Technical Skills will still be the most important attributes required of engineers in the future, according to a new study by the A-STEP 2030 Erasmus+ funded project. The project which is led by ENSTA Bretagne, France and has academic partners in TU Dublin, Metropolia University of Applied Sciences in Finland and Aalborg University in Denmark aims to develop innovative teaching approaches for engineering students which will attract a more diverse student body to the engineering profession.

Contextual Influences On Human Resources Development: Considerations And Evaluations On The Various External And Internal Factors That Shape And Influence Hrd In Organisations, Charles Alves De Castro

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This article aims to briefly understand and evaluate the main external and internal factors that impact directly on human resources development area within the organisations, mainly related to multinational companies. Also, it discusses the various aspects and influences on HRD-(Human Resources Development) such as societal, organisational/local, global, that impacts on costs, environment, regulations, policies, culture, beliefs, technology and values. This research was carried out by way of a literature review. This is important to demonstrate, explain and evaluate the current existent literature about this specific theme covered in this article. Furthermore, through this review we compared previous research on HRD. …