Digital Commons Network^™

Breaking The Buildup-Time Limit Of Sensitivity In Avalanche Photodiodes By Dynamic Biasing, Majeed M. Hayat, Payman Zarkesh-Ha, George El-Howayek, Robert Efroymson, Joe C. Campbell

Electrical and Computer Engineering Faculty Research and Publications

Avalanche photodiodes (APDs) are the preferred photodetectors for direct-detection, high data-rate long-haul optical telecommunications. APDs can detect low-level optical signals due to their internal amplification of the photon-generated electrical current, which is attributable to the avalanche of electron and hole impact ionizations. Despite recent advances in APDs aimed at reducing the average avalanche-buildup time, which causes intersymbol interference and compromises receiver sensitivity at high data rates, operable speeds of commercially available APDs have been limited to 10Gbps. We report the first demonstration of a dynamically biased APD that breaks the traditional sensitivity-versus-speed limit by employing a data-synchronous sinusoidal reverse-bias that …

Long Live Bohatch: Why A Law Firm Partner Can Be Expelled For Following The Rules Of Professional Conduct, David A. Grenardo

MC Law Review

No abstract provided.

Army Support Of Military Cyberspace Operations: Joint Contexts And Global Escalation Implications, Jeffrey L. Caton Mr.

Books, Monographs & Collaborative Studies

View the Executive Summary

Military cyberspace operations have evolved significantly over the past 2 decades and are now emerging into the realm of military operations in the traditional domains of land, sea, and air. The goal of this monograph is to provide senior policymakers, decisionmakers, military leaders, and their respective staffs with a better understanding of Army cyberspace operations within the context of overall U.S. military cyberspace operations. It examines the development of such operations in three major sections. First, it looks at the evolution of Department of Defense cyberspace operations over the past decade to include the founding of …

Leadership Skills For Nursing Unit Managers To Decrease Intention To Leave, Michael R. Roche, Christine M. Duffield, Sofia Dimitrelis, Belinda Frew

Research outputs 2014 to 2021

Aim: To examine specific elements of nursing leadership linked to intention to leave, in public acute care hospitals. Background: Nurse turnover is a global issue receiving widespread attention due to prolonged and projected workforce shortages. Nurse management and leadership qualities have been associated with intention to leave and turnover of nurses. The role of the nurse unit managers in the retention of nurses is becoming increasingly important, particularly because of their strong influence on the quality and stability of the work environment. Methods: Data were collected from 6 2 medical, surgical, and mixed units across eleven public acute care hospitals …

Believe It Or Not: Examining The Case For Intuitive Logic And Effortful Beliefs, Stephanie Howarth

School of Psychology Theses

The overall objective of this thesis was to test the Default Interventionist (DI) account of belief-bias in human reasoning using the novel methodology introduced by Handley, Newstead & Trippas (2011). DI accounts focus on how our prior beliefs are the intuitive output that bias our reasoning process (Evans, 2006), whilst judgments based on logical validity require effortful processing. However, recent research has suggested that reasoning on the basis of beliefs may not be as fast and automatic as previous accounts claim. In order to investigate whether belief based judgments are resource demanding we instructed participants to reason on the basis …

Mentoring Case Studies In The Access And Civic Engagement Office, Technological University City, John Delap, Sinéad Mccann

Staff Articles and Research Papers

Abstract This is a collaborative paper by staff members working with Students Learning with Communities (SLWC) and the Access Service in the Access and Civic Engagement Office (ACE) at Technological University City (DIT). Through two case studies, this paper examines various types of mentoring operating within these two programmes, as well as identifying; 1) the purpose of each type of mentoring relationship, and its specific structure 2) the desired outcomes of the mentoring relationships and 3) areas in which mentoring relationships can grow. This paper aims to contribute to the development of best practice for mentoring in higher education.

Keywords: …

Introducing New Engineering Students To Mechanical Concepts Through An “Energy Cube” Project, Shannon Chance, Micheal O'Flaherty, Fionnuala Farrell, Christopher Montague

Conference papers

The objective of this paper is to describe a problem based learning module, called the “Energy Cube”, offered by Dublin Institute of Technology that is designed to teach mechanical, building services and manufacturing engineering concepts to first year engineering students.

The Energy Cube project gives students hands-on experience in areas ranging from heat transfer, lighting and energy efficiency to industrial and product design. In the Energy Cube, students design and construct (using cardboard, clear plastic, and glue) a model of a building that admits as much daylight as possible while being energy efficient and aesthetically pleasing.

The students, working in …

High Sensitivity Refractive Index Sensor Based On A Tapered Small Core Single-Mode Fiber Structure., Dejun Liu, Arun Mallik, Jinhui Yuan, Chongxiu Yu, Gerald Farrell, Yuliya Semenova, Qiang Wu

Articles

A high sensitivity refractive index (RI) sensor based on a tapered small core single-mode fiber (SCSMF) structure sandwiched between two traditional single-mode fibers (SMF28) is reported. The microheater brushing technique was employed to fabricate the tapered fiber structures with different waist diameters of 12.5, 15.0, and 18.8 μm. Experiments demonstrate that the fiber sensor with a waist diameter of 12.5 μm offers the best sensitivity of 19212.5  nm/RIU19212.5  nm/RIU (RI unit) in the RI range of 1.4304 to 1.4320. All sensors fabricated in this Letter show good linearity in terms of the spectral wavelength shift versus changes in RI. Furthermore, …

Institutional Mergers In Ireland, Siobhan Harkin, Ellen Hazelkorn

Books/Book chapters

The importance of knowledge as a driver of social and economic growth and prosperity, and the increasingly competitive “global race for knowledge and talent” (Hazelkorn, Higher Educ Manage Policy 21(1):55–76, 2009) have combined to transform the higher education landscape, forcing national governments and higher education institutions (HEIs) to pursue new ways of addressing the challenges of a multi-polar world order. Rising demand for higher education (HE), as part of the broader shift from elite to mass to universal participation, has led to the emergence of new models of provision. At the same time, many governments face restrictions on public resources …

Work Placement 1 Men's Health Forum In Ireland, Aisling Fenton

Students Learning with Communities

No abstract provided.

Asymmetric Encryption For Wiretap Channels, Salah Yousif Radhi Al-Hassan

School of Engineering, Computing and Mathematics Theses

Since the definition of the wiretap channel by Wyner in 1975, there has been much research to investigate the communication security of this channel. This thesis presents some further investigations into the wiretap channel which improve the reliability of the communication security. The main results include the construction of best known equivocation codes which leads to an increase in the ambiguity of the wiretap channel by using different techniques based on syndrome coding. Best known codes (BKC) have been investigated, and two new design models which includes an inner code and outer code have been implemented. It is shown that …

W412-003 - Personnel Office: Correspondence And Memoranda, Personnel Office

University Archives Finding Aids

No abstract provided.

W413.1 - Gifts And Bequests, Gifts And Bequests

University Archives Finding Aids

No abstract provided.

Authentication Aura: A Cooperative And Distributed Approach To User Authentication On Mobile Devices, Christopher George Hocking

School of Engineering, Computing and Mathematics Theses

As information technology pervades our lives we have increasingly come to rely on these evermore sophisticated and ubiquitous items of equipment. Portability and the desire to be connected around the clock has driven the rapid growth in adoption of mobile devices that enable us to talk, message, tweet and inform at will, whilst providing a means to shop and administer bank accounts. These high value, high risk, desirable devices are increasingly the target of theft and improvement in their protection is actively sought by Governments and security agencies. Although forms of security are in place they are compromised by human …

A Review Of Knowledge Management In The Public Sector: A Taxonomy, Paul J. Mc Evoy, Amr Arisha, Mohamed Ragab

Conference papers

Purpose – Public organisations today face management challenges to cope with current markets in what’s known as a knowledge era. They primarily face adaptive challenges. Changes in communities, markets, business behaviour, competition, and most importantly technology around the globe are forcing all organisations to clarify their strengths, develop knowledge strategies, and learn new ways of managing their human capital. Governmental organisations also exhibit tendencies towards unusual and bureaucratic cultures mired in hierarchical structures, which create peculiar challenges that confront Knowledge Management (KM) efforts within the public sector. As public firms attempt to effectively manage their knowledge, organisational culture and structure …

Evaluating Hrd Programmes, Sue Mulhall

Books/Book Chapters

No abstract provided.

Technology-Enhanced Learning: Towards Providing Supports For Phd Students And Researchers In Higher Education., Eileen O'Donnell, Liam O'Donnell

Books/Book Chapters

No abstract provided.

W423.1-0-01 - College Of Arts And Sciences: Dean's Office: Various Records, College Of Arts And Sciences

University Archives Finding Aids

No abstract provided.

Body + Power + Justice: Movement-Based Workshops For Critical Tutor Education, Beth Godbee, Moira Ozias, Jasmine Kar Tang

The Writing Center Journal

No abstract provided.

Word Choice Errors In Chinese Students' English Writing And How Online Writing Center Tutors Respond To Them, Carol Severino, Shih-Ni Prim

The Writing Center Journal

No abstract provided.

Evaluating The Effectiveness Of Writing Center Classroom Visits: An Evidence-Based Approach, Holly Ryan, Danielle Kane

The Writing Center Journal

No abstract provided.

Review Essay: Towards A Disability Literacy In Writing Center Studies, Karen S. Rowan

The Writing Center Journal

No abstract provided.

Twenty-First Century Writing Center Staff Education: Teaching And Learning Towards Inclusive And Productive Everyday Practice, Sarah Blazer

The Writing Center Journal

No abstract provided.

The Writing Center And Transfer Of Learning: A Primer For Directors, Bonnie Devet

The Writing Center Journal

No abstract provided.

Back Matter

The Writing Center Journal

No abstract provided.

Video Content-Based Qoe Prediction For Hevc Encoded Videos Delivered Over Ip Networks, Louis Anegekuh

School of Engineering, Computing and Mathematics Theses

The recently released High Efficiency Video Coding (HEVC) standard, which halves the transmission bandwidth requirement of encoded video for almost the same quality when compared to H.264/AVC, and the availability of increased network bandwidth (e.g. from 2 Mbps for 3G networks to almost 100 Mbps for 4G/LTE) have led to the proliferation of video streaming services. Based on these major innovations, the prevalence and diversity of video application are set to increase over the coming years. However, the popularity and success of current and future video applications will depend on the perceived quality of experience (QoE) of end users. How …

The Geometrical Thought Of Isaac Newton: An Examination Of The Meaning Of Geometry Between The 16th And 18th Centuries, Nicole Victoria Bloye

School of Engineering, Computing and Mathematics Theses

Our thesis explores aspects of the geometrical work and thought of Isaac Newton in order to better understand and re-evaluate his approach to geometry, and specifically his synthetic methods and the organic description of plane curves. In pursuing this research we study Newton's geometrical work in the context of the changing view of geometry between the late 16th and early 18th centuries, a period defined by the responses of the early modern geometers to a new Latin edition of Pappus' Collectio. By identifying some of the major challenges facing geometers of this period as they attempted to define and practice …

Normalizability, Integrability And Monodromy Maps Of Singularities In Three-Dimensional Vector Fields, Hussein Niazy

School of Engineering, Computing and Mathematics Theses

In this thesis we consider three-dimensional dynamical systems in the neighbourhood of a singular point with rank-one and rank-two resonant eigenvalues. We first introduce and generalize here a new technique extending previous work which was described by Aziz an Christopher (2012), where a second first integral of a 3D system can be found if the system has a Darboux-analytic first integral and an inverse Jacobi multiplier. We use this new technique to find two independent first integrals one of which contains logarithmic terms, allowing for non-zero resonant terms in the formal normal form of vector field. We also consider sufficient …

W402-09 - Board Of Trustees: Various Records, Board Of Trustees

University Archives Finding Aids

No abstract provided.

W403-004d-05 - Office Of The President: Henry Radcliffe Sims: Correspondence Concerning Students, Office Of The President, Henry Radcliffe Sims

University Archives Finding Aids

No abstract provided.