Digital Commons Network^™

Objective Measurements Of Image Quality, Jacinta Browne, Amanda Watson, Nicholas Gibson, Nicholas Dudley, Alex Elliott

Articles

Tissue harmonic imaging (THI) and compound imaging have been reported clinically to improve contrast resolution, tissue differentiation and overall image quality. However, there have been limited studies to date to quantify objectively the improvements in image quality achieved with these new imaging techniques. The aim of this study was to quantify differences in image quality that exist between conventional B-mode imaging, harmonic imaging, compound imaging and harmonic compound imaging. An ATL HDI 5000 scanner with three probes (C5-2, L7-4 and L12-5) was tested with two different types of test object, the Gammex-RMI model 404 GS LE and the Gammex-RMI 403 …

2004 - Performances, Neiu Music Department

Music Department Performance Programs

Student Recital, Quintet Attacca, Mostly Music

Non Linear Electronic And Optical Processes In Fullerene Thin Films, Siobhan Phelan

Masters

In this study the current voltage characteristics of C60 thin film sandwich structures fabricated by vacuum deposition on indium tin oxide (ITO) with an aluminium top electrode are presented and discussed. A strongly non-linear behaviour and a sharp increase in the device conductivity was observed at relatively low voltages, at both room and low temperatures (30K). At room temperature the system is seen to collapse. In situ Raman measurements indicate that the collapse is the result of a solid state reduction of the fullerene thin film to a polymeric state. The high conductivity state was seen to be stable at …

A Biochemical Study Of Atlantic Salmon (Salmo Salar) Skin Mucus Proteins During Smoltification (1999 And 2001), Paul Kennedy

Masters

Smoltification is a complex process which involves morphological, physiological and behavioural changes which allow Atlantic salmon to migrate from fresh water to seawater. The biological interface between the salmon and their environment is the mucus coat, which is composed of a wide variety of biochemical secretions primarily from goblet cells on the surface of the epithelial layers, but also other cells such as sacciform cells and acidophilic granular cells. Skin mucus has been implicated in a diversity of roles including respiration, osmoregulation, reproduction, excretion, disease resistance, communication, feeding and protection ( Shepard, 1994). Further investigation is warranted with regard to …

Xviii Airborne Corps: Spearhead Of Military Transformation, Douglas A. Macgregor

Defense Horizons

War transforms armies. Combat accelerates transformation by moving it out of the realm of academic debate and endless speculation about the future to a pragmatic approach focused on fielding new capabilities within new combat formations as soon as possible. In war, transformation means conserving equipment and operational methods that are still relevant while incorporating new technologies, tactics, and organizations that enable victory. It is nearly impossible to replicate in peacetime training the true conditions of land warfare—ambiguity, uncertainty, and above all terror, killing, and exhaustion. For the Army, the best opportunity to transform involves parallel evolution, a method that moves …

Learning Theories And Higher Education, Francis Ashworth, Gabriel Brennan, Kathy Egan, Ron Hamilton, Olalla Sáenz

Conference papers

This paper offers a number of materials and resources which may be used as teaching aids for introduction-level courses in learning theories, especially those in higher education. The materials were developed during our participation in a postgraduate diploma module on the psychology of learning and learning theories in 2004, as part of the diploma in third-level learning and teaching at the DIT Learning and Teaching Centre.

Control Loop Performance Assessment: A Classification Of Methods, Niall O'Connor, Aidan O'Dwyer

Conference papers

This paper presents an overview of a number of controller performance assessment techniques. The techniques discussed are divided into five categories, namely, time domain assessment, frequency domain assessment, minimum variance control (MVC) as a benchmark, statistical analysis, and other more ‘problem specific’ assessment techniques. Recent work, by various authors, in each of the five categories is outlined.

Tuning Rules For Pi And Pid Control Of Time Delayed Processes: Some Recent Developments, Aidan O'Dwyer

Conference papers

The ability of PI and PID controllers to compensate many practical processes has led to their wide acceptance in industrial applications. The requirement to choose two or three controller parameters is most easily done using tuning rules. Starting with a general discussion of industrial practice, the paper will discuss, in particular, recent work in tuning rule development for processes with time delay.

Comparison Between Theoretical And Practical Phase Computation, Pauline Sourdille, Aidan O'Dwyer

Conference papers

Transfer functions which are a composite of delay terms cause problems for computer packages, such as MATLAB, in calculating the frequency response open loop transfer function, as the form of the open loop transfer function is irrational. So, the delay terms have to be approximated. There are several ways to evaluate a delay term. A calculator such as MATHEMATICA uses the exact representation of the delay called the Euler form. A computer package such as MATLAB uses a rational approximation for the delay. Using the MATLAB built-in function pade(n,tau), the open loop transfer function of a system with delay can …

System Identification Using The Delta Operator, Aidan O'Dwyer

Conference papers

The aim of this contribution is to communicate, to a wide audience in signal processing and telecommunications, work that has been carried out, primarily in control engineering, on the use of alternative discrete time operators to the z-domain operator. The advantages of the delta domain operator will be communicated using examples, primarily with the aid of plotted results, to give a creative and easily understood impact. Some original work carried out by the author on identification issues will also be communicated.

Using Structured P2p Overlay Networks To Build Content Sensitive Communities, Paul Stacey, Damon Berry, Eugene Coyle

Conference papers

This paper details a proposed peer-to-peer system, which allows a user to join communities of other like-minded users in order to exchange files. Utilising the routing capabilities of Pastry, the proposed system includes an indexing service, which facilitates the creation of virtual rendezvous points for users with similar interests (manifested by shared keywords). Users are described by the content they store. By using vector space modelling techniques users can be grouped together to form content sensitive communities. The system is built to serve as the basis for a distributed archive of research papers. The system is designed to improve the …

Application Of Wavelet Transform To Power Quality (Pq) Disturbance Analysis, Malabika Basu, Biswajit Basu

Conference papers

This paper presents a wavelet analysis based time-frequency technique to identify power system transients and disturbances. A mother wavelet basis function (Littlewood- Paley (L-P)) with dyadic non-overlapping frequency hands has been used. The advantage of the proposed approach is in identification of the occurrence and duration of the disturbances. A few power signals with power quality disturbances have been analysed to show the effectiveness of the proposed technique.

Combining Capacitor/Inductor And Idling Asynchronous Motor In Design Of A System For Balance Of A Large Two-Phase Industrial Load Over Three Phases, Eugene Coyle, M Farrell, W. J. Campbell

Conference papers

This paper describes the design and implementation of a new solution to power quality problems associated with large unbalanced nonlinear loads at fine glass furnace production utilities. Such furnaces use two-phase electricity for reasons of enhanced temperature control and in order to maintain consistency of glass viscosity. A significant risk of power failure is introduced due to this requirement. The furnace load is also nonlinear in nature, due to temperature control by electronic power switching. This gives rise to risks associated with high harmonic distortion. A new method in design of filters to alleviate problems associated with this type of …

Concluding Remarks, Rosemary C. Salomone

St. John's Law Review

(Excerpt)

The topic of our afternoon panel, "Achieving Diversity in the Classroom," grows out of the Supreme Court's most recent landmark decisions on affirmative action. In Gratz v. Bollinger and Grutter v. Bollinger, a severely divided Court affirmed the narrow use of race in university admissions. The Court, however, made clear that institutions could not base their decisions solely on race but must seriously consider "all the ways an applicant might contribute to a diverse educational environment."

Crash Analysis: An Investigation Of Current Speed Estimation Techniques, Robert Rice

Masters

The increasing number of cars and collisions on the roads of Europe ensure that the need for accurate speed estimation is an ever-more pressing requirement. This requirement has provided the motivation for an investigation into the accuracy and reliability of existing crash models An in-depth literature review was undertaken to create a greater understanding of the structural collapse behaviour of vehicles during full frontal collisions. It was decided to concentrate the work on frontal collisions as this type of accident makes up the majority of road accidents. This review underlined some of the phenomena that need to be considered when …

The Political Economy Of Property Exemption Laws, Richard M. Hynes, Anup Malani, Eric A. Posner

Faculty Publications

Exemption laws enable people who default on loans to protect certain assets from liquidation. Every state has its own set of exemption laws, and they vary widely. The 1978 federal bankruptcy law contains a set of national exemptions, which debtors in bankruptcy are permitted to use instead of their state's exemptions unless the state has formally "opted out" of the federal system. We contend that states' decisions to opt out shed light on their exemption levels. We find that states are more likely to opt out if their state exemption is lower than the federal exemption and that states are …

Photonic Band Gap Analysis Using Finite-Difference Frequency-Domain Method, Shangping Guo, Feng Wu, Sacharia Albin

Electrical & Computer Engineering Faculty Publications

A finite-difference frequency-domain (FDFD) method is applied for photonic band gap calculations. The Maxwell’s equations under generalized coordinates are solved for both orthogonal and non-orthogonal lattice geometries. Complete and accurate band gap information is obtained by using this FDFD approach. Numerical results for 2D TE/TM modes in square and triangular lattices are in excellent agreements with results from plane wave method (PWM). The accuracy, convergence and computation time of this method are also discussed.

Synthysis Of Polymer/Nano-Droplet Composites From Reverse Microemulsion Polymerization, Liehui Ge

Master's Theses and Doctoral Dissertations

L₁ and L₂ domains of the water/AOT/MMA ternary system were investigated at 22±1°C. Free radical polymerizations were conducted in L₂ domain. Only opaque polymer rods were obtained. Acrylamide, a water soluble monomer, plays a role of co-surfactant which greatly expands the L₂ domain. However, polymerizations only yielded opaque material. SEM showed images of phase separation.

MDOS (2-Methacryloyloxy)ethyl trimethylammonium bis(2-ethylhexyl) sulfosuccinate, was synthesized by ion exchange method. L₁ and L₂ domains of the water/MDOS/MMA ternary system were also investigated at 22±1°C. Free radical polymerizations were conducted in L₂ domain. Transparent polymer was produced. The …

Kierkegaard As An Enlightenment Thinker, Jeremy Bendik-Keymer

Faculty Scholarship

What if Kierkegaard were not a counter-Enlightenment thinker, but were a deeper enlightenment thinker? In this talk, I want to propose an interpretation of S.K.’s work under which he continues the Enlightenment, rather than discontinuing it. I will claim that Kierkegaard deepened and advanced one of the most central aspects of “enlightenment”, at least as Kant and the subsequent tradition has defined it. Kierkegaard was an enlightenment thinker (lower case “e”!), and therefore it is misleading to see him as opposed to the heart of the Enlightenment (upper case “e”).

A Double Due Process Denial: The Crime Of Providing Material Support Or Resources To Designated Foreign Terrorist Organizations, Randolph N. Jonakait

Articles & Chapters

No abstract provided.

Introduction: The Law, Technology & The Arts Symposium: The Past, Present And Future Of The Federal Circuit, Gerald Korngold

Articles & Chapters

No abstract provided.

Afterword: How Can We Save The Safety Net?, Frank W. Munger

Articles & Chapters

No abstract provided.

The State Of Play, Beth Simone Noveck

Articles & Chapters

No abstract provided.

The Human Right To Housing: Making The Case In U.S. Advocacy, Maria Foscarinis, Brad Paul, Bruce Porter, Andrew Scherer

Articles & Chapters

No abstract provided.

In Memoriam, W. Bernard Richland, Ross Sandler

Articles & Chapters

No abstract provided.

The Electronic Revolution In Rulemaking, Beth Simone Noveck

Articles & Chapters

No abstract provided.

Preface, Symposium: Criminal Defense In The Age Of Terrorism, Tanina Rostain, Donald Zeigler

Articles & Chapters

No abstract provided.

The Mens Rea For The Crime Of Providing Material Resources To A Foreign Terrorist Organization, Randolph N. Jonakait

Articles & Chapters

No abstract provided.

The More Things Change, The More They Stay The Same: Mr. Tutt And The Distrust Of Lawyers In The Twentieth Century, Molly Guptill Manning

Articles & Chapters

No abstract provided.

Everything's A Little Upside Down, As A Matter Of Fact The Wheels Have Stopped: The Fraudulence Of The Incompetency Evaluation Process, Michael L. Perlin

Articles & Chapters

Health Law in the Criminal Justice System Symposium