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Distance Relaying Algorithm For Double-Circuit Transmission Line With Compensation For Reactance Effect Under Standard Availability Of Measurements, Jan Izykowski, Marcin Bozek

Turkish Journal of Electrical Engineering and Computer Sciences

This paper deals with non-pilot distance protection of a double-circuit transmission line. Negative impact of the reactance effect, appearing in measuring a fault loop impedance, on operation of the relay is discussed. An adaptive algorithm allowing one to prevent the relay from mis- or mal-operation caused by the reactance effect is introduced. The algorithm is designed for a standard availability of measurements from one end of the double-circuit line, i.e. when three-phase voltage and current from the faulted line circuit, and additionally zero-sequence current from the healthy line circuit, are provided as the relay input signals. The algorithm is based …

Cover And Contents

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Spatial Variability In Forest Fuels: Simulation Modeling And Effects On Fire Behavior, Russell Andrew Parsons

Graduate Student Theses, Dissertations, & Professional Papers

Forests in the western United States and elsewhere face a growing crisis arising from global warming, changes in fuel beds and an increasing human population. Fire management policy emphasizes fuel treatments, such as thinning and prescribed burning, to remedy this situation because fuels are the one component of the problem that we can directly affect through management action. At present, however, the tools we have for the evaluation of fuel treatments are inadequate because they do not describe the fuel bed, or effects of modifications to the fuel bed on fire behavior in sufficient detail. The work described here presents …

Spectral Preserver Problems In Uniform Algebras, Scott Alan Lambert

Graduate Student Theses, Dissertations, & Professional Papers

There has been much interest in characterizing maps between Banach algebras that preserve a certain equation or family of elements. There is a rich history in such problems that assume the map to be linear, so called linear preserver problems. More recently, there has been an interest in not assuming the map is linear a priori and instead to assume it preserves some equation involving the spectrum, a portion of the spectrum, or the norm.

After a brief introduction to uniform algebras, we give a rigorous development of the theory of boundaries. This includes a new alternative proof of the …

Objectivity And Subjectivity In Contract Law: A Copernican Response To Professor Shiffrin, Jeffrey M. Lipshaw

Suffolk University Law School Faculty Works

This is a response to Seana Shiffrin's recent and important contribution to the continuing debate whether there is a universal moral or economic truth at the heart of contract law. Her most significant advance toward a general theory of promise and contract is not, however, her analysis of the divergence of morality and contract, but instead her identification of the critical moment at which the interposition of the public in a private matter occurs or is contemplated. This essay carries that theme forward, suggesting that a universal justification for contract law is not possible because the law, by its very …

The National Environmental Policy Act In The Urban Environment: Oxymoron Or A Useful Tool To Combat The Destruction Of Neighborhoods And Urban Sprawl?, Hope M. Babcock

Georgetown Law Faculty Publications and Other Works

To some, applying the National Environmental Policy Act (NEPA) to decisions affecting land use in an urban or built environment is an oxymoron. Cities have historically not been seen “as natural entities but as foreign impositions upon the native landscape,” places where the physical environment is already largely destroyed or reduced to insignificant remnants. Moreover, detecting the required federal presence to trigger NEPA may initially seem difficult when decisions affecting urban resources appear to be principally made by local or state agencies.

At the Institute for Public Representation (IPR) at the Georgetown University Law Center, the author has learned that …

Topos-Like Properties In Two Categories Of Graphs And Graph-Like Features In An Abstract Category, Demitri Joel Plessas

Graduate Student Theses, Dissertations, & Professional Papers

In the study of the Category of Graphs, the usual notion of a graph is that of a simple graph with at most one loop on any vertex, and the usual notion of a graph homomorphism is a mapping of graphs that sends vertices to vertices, edges to edges, and preserves incidence of the mapped vertices and edges. A more general view is to create a category of graphs that allows graphs to have multiple edges between two vertices and multiple loops at a vertex, coupled with a more general graph homomorphism that allows edges to be mapped to vertices …

Using 3-D Geometric Morphometric Techniques To Further Understand The Relationship Between Neanderthals And Homo Sapiens, Jolen Anya Minetz

Graduate Student Theses, Dissertations, & Professional Papers

The relationship between hominids in the middle and late Pleistocene has been a heated subject of debate since Neanderthals were first recognized. Neanderthals are either a distinctly separate species from Homo sapiens that were replaced by Homo sapiens without any genetic interaction, which supports the taxonomical title for Neanderthals as Homo neanderthalensis, or there was at least a minimal genetic interaction between contemporaneous Neanderthals and early humans, designating Neanderthals as a subspecies with a taxonomic title of Homo sapiens neanderthalensis. The purpose of this research was to further explore this issue by conducting a quantitative analysis on several aspects of …

Probing Structural Differences Of Recombinant Prion Isoforms Using Fluorescence Spectroscopy, Jessica Louise Gilbert

Graduate Student Theses, Dissertations, & Professional Papers

Conversion of prion protein (PrP) from its normal, cellular isoform, PrPC, to an infectious, misfolded, fibrillar isoform, PrPSc, is responsible for various neurodegenerative diseases in a variety of mammalian hosts. Although the structure of PrPC is well studied, the structure of PrPSc is not known. Obtaining structural information on the misfolded isoform of prion may lead to preventative therapies and treatments of prion diseases. In this study, six single-tryptophan mutants of recombinant PrP were expressed, purified, and refolded into PrPC or two misfolded isoforms of prion, PrPb and PrPF. Solvent accessibilities of the six tryptophan residues were probed among the …

Fifty Years Of Memory Of College Grades: Accuracy And Distortions, Harry P. Bahrick, Lynda K. Hall, Laura A. Da Costa

All Faculty and Staff Scholarship

One to 54 years after graduating, 276 alumni correctly recalled 3,025 of 3,967 college grades. Omission errors increased with the retention interval, and better students made fewer errors. Accuracy of recall increased with confidence in recall. Eighty-one percent of commission errors inflated the actual grade. Distortions occur soon after graduation, remain constant during the retention interval, and are greater for better students and for courses students enjoyed most. Confidence in recall is unrelated to distortion. Courses that were not freely recalled, but had to be cued, were recalled less accurately and with less distortion. The data support a supplementary theory …

Cost Analysis Of Requirements, Design, And Code Reviews And How This Impacts The Cost Of Quality, Mark W. Huston

Graduate Student Theses, Dissertations, & Professional Papers

This thesis examines the difference between accepted theoretical and real world return on investment of requirements, design, and code reviews. The differences have a significant impact on the cost of quality. The goal of this thesis is to examine the differences between two data sets (one derived from widely accepted software principles and one derived from real-world data) and draw conclusions about the effectiveness (cost vs. increase defect detection) of reviews based upon these analyses. This thesis will compare accepted relationships pertaining to cost per defect and overall project cost against actual data from a real world project in order …

A Landscape Approach To Grassland Bird Conservation In The Prairie Pothole Region Of The Northern Great Plains, Frank Royce Quamen

Graduate Student Theses, Dissertations, & Professional Papers

Prairie is one of the most imperiled ecosystems, and grassland birds have experienced steeper and more consistent declines than any other group of birds in North America. Habitat-based planning tools are a cornerstone of conservation in forested ecosystems, but remain a novel approach in grasslands. In Chapter 2, I develop spatially-explicit habitat models as decision support tools for conservation. I survey birds, measure local vegetation and quantify landscape features at 952 sites in western Minnesota and northwest Iowa. Findings indicate that cropland provides little habitat for grassland songbirds and that hayland does not compensate for loss of grasslands. Multiscale models …

Exploring The Benefits Of An Outdoor Adventure Program For Improving Self-Esteem And Self-Efficacy And Reducing Problem Behaviors In Adolescent Girls, Kristen O'Shea

Graduate Student Theses, Dissertations, & Professional Papers

The study assessed change in self-efficacy, self-esteem, and problem behaviors from pre-treatment to post-treatment and at 6-month follow-up for adolescent girls enrolled in an outdoor adventure program. Family security and previous program experience were also considered. Participants included 62 girls (ages 10 - 18) from diverse ethnic and SES backgrounds (the majority were Euro American from middle class backgrounds). As expected, problem behaviors were negatively correlated with self-esteem throughout the trip; they were negatively correlated with self-efficacy at 6-month follow-up. Girls from "higher security" families reported significantly higher levels of self-esteem (p < .05) and fewer problem behaviors (p < .01) than girls from "lower security" families. A principal components analysis (PCA) was run to review test properties of one of the study measures, the modified General Self-Efficacy Scales. Limitations of the study, including low power and few statistically significant results, are discussed.

On Kuiper's Question Whether Taut Submanifolds Are Algebraic, Thomas E. Cecil, Quo-Shin Chi, Gary Jensen

Mathematics and Computer Science Department Faculty Scholarship

We prove that any connected proper Dupin hypersurface in Rⁿ is analytic algebraic and is an open subset of a connected component of an irreducible algebraic set. From this we also prove that every taut submanifold of dimension m ≤ 4 is algebraic by exploring a finiteness condition.

Law And Governance In The 21st Century Regulatory State, Jason M. Solomon

Faculty Publications

No abstract provided.

An Introduction To Systems Biology For Mathematical Programmers, Evind Almaas, Allen G. Holder, Kevin D. Livingstone

Mathematics Faculty Research

Many recent advances in biology, medicine and health care are due to computational efforts that rely on new mathematical results. These mathematical tools lie in discrete mathematics, statistics & probability, and optimization, and when combined with savvy computational tools and an understanding of cellular biology they are capable of remarkable results. One of the most significant areas of growth is in the field of systems biology, where we are using detailed biological information to construct models that describe larger entities. This chapter is designed to be an introduction to systems biology for individuals in Operations Research (OR) and mathematical programming …

The Impact Of Two Middle School Grade Level Start Points, 5th-Grade And 7th-Grade, On Adolescents' 8th-Grade Achievement, Behavior, And High School Preparedness, Elizabeth W. Standish

Student Work

The grade level at which an adolescent started middle school, 5th-grade (n = 40) or 7th-grade (n = 40) did not statistically significantly impact 8th-grade students' achievement, behavior or high school preparedness in this study. Regardless of middle school start points all 8th-grade students performed within the fourth to sixth stanines on a national norm-referenced test, solidly within the average range with mean core grade point averages ranging from a C+ (2.53) to a B (3.11). However, consistent with national findings all middle school start point groups demonstrated statistically significant declines in normal curve equivalences between pretest 5th-grade to posttest …

Sex-Specific Feeding Rates And Provisioning Of Fruit To Nestling Bell's Vireo, Greg H. Farley

The Prairie Naturalist

Provisioning of fruit to nestlings and possible sex-specific differences in feeding rate have not been reported for Bell's vireo (Vireo bellii; Brown 1993). While studying nesting ecology of Bell's vireo on Konza Prairie Biological Station, Geary and Riley counties, Kansas, I quantified feeding rate by sex and food type delivered to nestlings. Sex was determined by capturing adults with mist-nets and inspecting for a cloacal protuberance, as well as conducting behavioral observations of uniquely-marked individuals. Males sing regularly while moving around territories, as well as during incubation (Nolan 1960). I assigned "female" to the individual in these socially …

Evaluating The Achievement Outcomes Of 5th-Grade Students Following Their Enrollment In Federally-Funded, Inquiry-Based Classrooms To Determine Program Sustainability, Daniel L. Frazier

Student Work

The purpose of this study was to evaluate the achievement outcomes of 5th-grade students following their enrollment in federally funded inquiry-based classrooms compared to same school traditional education program students to determine the feasibility of inquiry-based program sustainability. The study analyzed achievement data of students in the inquiry-based Charter Education Program compared to achievement data of students in the Traditional Education Program to determine pretest-posttest achievement gain for students in both research arms and posttest-posttest intervention effectiveness. The inquiry-based Charter Education Program required students to utilize laptop computers rather than textbooks to research, analyze, write, and complete reports. The Traditional …

The Paaps Strategy For Teaching Mathematics Content, Greg Harrell

Proceedings of the Annual Meeting of the Georgia Association of Mathematics Teacher Educators

In the fall of 2005, I started teaching the mathematics content course Algebra and Geometry for Teachers. The majority of students in the course are pre-service middle school teachers. Instead of teaching the course by demonstrating rigorous proofs, I wanted to use teaching strategies that would build the students’ content knowledge and connect to their roles as future mathematics

teachers. I chose to make problem solving a focal process standard by having students problem- solve for a majority of classroom time. In addition, the students complete a major project entitled

“Provide, Attempt, and Assess Problem Solving” or PAAPS. For PAAPS, …

How Do Securities Laws Influence Affect, Happiness, & Trust?, Peter H. Huang

Publications

This Article advocates that securities regulators promulgate rules based upon taking into consideration their impacts upon investors' and others' affect, happiness, and trust. Examples of these impacts are consumer optimism, financial stress, anxiety over how thoroughly securities regulators deliberate over proposed rules, investor confidence in securities disclosures, market exuberance, social moods, and subjective well-being. These variables affect and are affected by traditional financial variables, such as consumer debt, expenditures, and wealth; corporate investment; initial public offerings; and securities market demand, liquidity, prices, supply, and volume. This Article proposes that securities regulators can and should evaluate rules based upon measures of …

Dunya, Marianne Wesson

Publications

No abstract provided.

Ideological Cohesion And Precedent (Or Why The Court Only Cares About Precedent When Most Justices Agree With Each Other), Neal Devins

Faculty Publications

This Article examines the profound role that ideological cohesion plays in explaining the Supreme Court's willingness to advance a coherent vision of the law - either by overruling precedents inconsistent with that vision or by establishing rule-like precedents intended to bind the Supreme Court and lower courts in subsequent cases. Through case studies of the New Deal, Warren, and Rehnquist Courts, this Article calls attention to key differences between Courts in which five or more Justices pursue the same substantive objectives and Courts which lack a dominant voting block. In particular, when five or more Justices pursue the same substantive …

From Engineering Electromagnetics To Electromagnetic Engineering: Using Computational Electromagnetics For Synthesis Problems, Anton G. Tijhuis, Martijn C. Van Beurden, Bastiaan P. De Hon, Hubregt J. Visser

Turkish Journal of Electrical Engineering and Computer Sciences

In this paper, a two-stage approach is proposed for using computational electromagnetics in antenna engineering. First, stochastic optimization techniques are used in combination with approximate models. Second, line-search techniques are combined with full-wave modeling. For the first stage, we show an illustrative example. The second stage is considered in detail; both the acceleration of the underlying field computations and the implementation of the optimization are discussed.

A Summary Of Recent Developments On Metamaterial-Based And Metamaterial-Inspired Efficient Electrically Small Antennas, Aycan Erentok, Richard W. Ziolkowski

Turkish Journal of Electrical Engineering and Computer Sciences

This paper summarizes our recent research efforts to realize efficient electrically small antenna (EESA) systems based on ideal analytical and numerical metamaterial-based antenna systems, and physically realized metamaterial-inspired antenna designs. Our theoretical and numerical studies of the radiation and resonance behaviors of the proposed metamaterial-based EESA systems, as well as our efforts to conceptualize structures which might be used to build them, have led to the discovery of several realizable metamaterial-inspired EESA systems. The measurement results confirm the numerical performance predictions.

Riparian Owner's Guidebook For Watershed Management, Annis Water Resources Institute

Environmental Guidebooks and Model Ordinances

This guidebook can help riparian landowners manage and maintain their property to ensure the continued existence of safe, clean, and natural waterways. It can also provide a better understanding of problems facing our water supplies and what preventative and corrective action we as landowners can put into effect. The guidebook is divided by issues that affect water quality, with possible problems and best management practices (BMPs) mentioned for each topic.

Renaissance 2008, University Of Rhode Island

URI Yearbooks

This is a digitized, downloadable version of the University of Rhode Island yearbook.

Improving Native American Access To Federal Funding For Economic Development Through Partnerships With Rural Communities, Joanna M. Wagner

American Indian Law Review

No abstract provided.

When Is The Commutant Of A Bol Loop A Subloop?, J.D. Phillips

Journal Articles

A left Bol loop is a loop satisfying x(y(xz)) = (x(yx))z. The commutant of a loop is the set of all elements which commute with all elements of the loop. In a finite Bol loop of odd order or of order 2k, k odd, the commutant is a subloop. We investigate conditions under which the commutant of a Bol loop is not a subloop. In a finite Bol loop of order relatively prime to 3, the commutant generates an abelian group of order dividing the order of the loop. This generalizes a well-known result for Moufang loops. After describing all …

F-Quasigroups And Generalized Modules, J.D. Phillips

Journal Articles

In [3], we showed that every F-quasigroup is linear over a special kind of Moufang loop called an NK-loop. Here we extend this relationship by showing an equivalence between the class of (pointed) F-quasigroups and the class corresponding to a certain notion of generalized module (with noncommutative, nonassociative addition) for an associative ring.