Physical Sciences and Mathematics Commons^™

Standards Directory: An Engineering And Technology Standards Digital Library And Information Retrieval System For The Walt Disney Company, Shawn Harrs

CCE Theses and Dissertations

Walt Disney Company (Company) engineers and architects utilize engineering and technology standards in the design, development, and maintenance of its physical infrastructure worldwide. There was a need to improve the methods by which Company standards are organized and retrieved. While the leading commercial information brokers for engineering and technology standards provide standards search engines and online standards catalogs, these search services are poor in supporting standards seekers who have only a general understanding of their information needs because their searches only utilize a standard's document number, title, and keywords as metadata for searching.

In order to provide a tool for …

Hausdorff Dimension, Loren Beth Nemeth

Theses Digitization Project

The purpose of this study was to define topological dimension and Hausdorff dimension, Namely metric space theory and measure theory. It was verified that in the sets of elementary geometry, the dimensions agree, while in the case of the fractals, the Hausdorff dimension is strictly larger than the topological dimension.

Freeness Of Hopf Algebras, Christopher David Walker

Theses Digitization Project

The Nichols-Zoeller freeness theorem states that a finite dimensional Hopf algebra is free as a module over any subHopfalgebra. We will prove this theorem, as well as the first significant generalization of this theorem, which was proven three years later. This generalization says that if the Hopf algebra is infinite dimensional, then the Hopf algebra is still free if the subHopfalgebra is finite dimensional and semisimple . We will also look at several other significant generalizations that have since been proven.

The Structure Of Semisimple Artinian Rings, Ravi Samuel Pandian

Theses Digitization Project

Proves two famous theorems attributed to J.H.M. Wedderburn, which concern the structure of noncommutative rings. The two theorems include, (1) how any semisimple Artinian ring is the direct sum of a finite number of simple rings; and, (2) the Wedderburn-Artin Theorem. Proofs in this paper follow those outlined in I.N. Herstein's monograph Noncommutative Rings with examples and details provided by the author.

A Web Based Master Calendar Of Events, Raul Hernan Rivas

Theses Digitization Project

Master Calendar of Events is a PHP/MS-SQL application that provides a user-friendly interface to display a listing of campus events via an Internet browser and was specifically designed to display events at the San Bernardino Community College District, Crafton Hills Community College, and San Bernardino Valley College. The application also provides an editor interface that allows designated users to add, edit, or delete events as well as manipulate logos or images.

Geodesic On Surfaces Of Constant Gaussian Curvature, Veasna Chiek

Theses Digitization Project

The goal of the thesis is to study geodesics on surfaces of constant Gaussian curvature. The first three sections of the thesis is dedicated to the definitions and theorems necessary to study surfaces of constant Gaussian curvature. The fourth section contains examples of geodesics on these types of surfaces and discusses their properties. The thesis incorporates the use of Maple, a mathematics software package, in some of its calculations and graphs. The thesis' conclusion is that the Gaussian curvature is a surface invariant and the geodesics of these surfaces will be the so-called best paths.

The Evolution Of Equation-Solving: Linear, Quadratic, And Cubic, Annabelle Louise Porter

Theses Digitization Project

This paper is intended as a professional developmental tool to help secondary algebra teachers understand the concepts underlying the algorithms we use, how these algorithms developed, and why they work. It uses a historical perspective to highlight many of the concepts underlying modern equation solving.

Multi-Warehouse Inventory Control System, Tzu-Hsiao Yin

Theses Digitization Project

The thesis discusses the development of Multi-Warehouse Inventory Control System (MWICS), a uniquely designed web application that targets membership based food wholesalers. The main goal of MWICS is to provide a real-time inventory control ability to all warehouses and present them as if it were single warehouse. The program consists of three main components: user account management sub-system, product and purchase management sub-system, and a warehouse inventory management sub-system. User interfaces are constructed primarily in HTML, PHP, and Javascript. MySQL is used to add, access, and process data.

Symmetric Representation Of Elements Of Finite Groups, Timothy Edward George

Theses Digitization Project

The purpose of the thesis is to give an alternative and more efficient method for working with finite groups by constructing finite groups as homomorphic images of progenitors. The method introduced can be applied to all finite groups that possess symmetric generating sets of involutions. Such groups include all finite non-abelian simple groups, which can then be constructed by the technique of manual double coset enumeration.

A Quantitative Analysis Of Performance In A Multi-Protocol Ad Hoc 802.11b-Based Wireless Local Network, Paul Christian Nielsen Jr.

CCE Theses and Dissertations

The popularity of the Internet and the growing demand for ubiquitous connectivity accelerate the need for viable wireless local area network (WLAN) solutions. As a consequence, increasing number of manufacturers have adopted the Institute of Electrical and Electronic Engineers (IEEE) 802.11a/b/g set of WLAN standards and produced inexpensive wireless products to expand capabilities of existing LANs. IEEE 802.11 b wireless products are widely accepted. Mobile ad hoc networks, a variant of the 802.11 standards, exist without the requirement for a wired infrastructure or host to provide routing, connectivity, and maintenance services. Because of the high variability of environments in which …

Blogging: An Inquiry Into The Efficacy Of A Web-Based Technology For Student Reflection In Community College Computer Science Programs, Jane W. Perschbach

CCE Theses and Dissertations

Reflection in learning is a pedagogical technique used to promote the higher order cognitive skills of analysis, synthesis, and evaluation that constitute the concept of critical thinking. To foster reflection in learning, the Internet technology of online journals known as blogs was employed in a two-semester, four-course investigation of the efficacy of this educational technology for vocational computer science students in a community college. The process involved an instructor-designed and maintained course blog containing suggestions for student reflection as well as hyperlinks to individual student peer blogs. Students were required to read both the course and peer blogs, and to …

Effectiveness Of Asynchronous Reference Services For Distance Learning Students Within Florida's Community College System, Patricia C. Profeta

CCE Theses and Dissertations

The impact of distance learning on higher education and the need to provide equitable library services to students in the digital environment emerged as critical areas during the 1990s. Library services available to distance learning students included digital reference and instructional services, remote access to online research tools, database and research tutorials, interlibrary loan, and document delivery. Digital reference services appeared to be one of the more significant services proffered by academic libraries although these services were developed often without forethought to goals and assessment. The purpose of this study was to examine the adequacy of asynchronous e-mail reference services …

Kinematically Complete Experiment On Transfer Excitation In Intermediate-Energy P + He Collisions, Ahmad Hasan, B. Tooke, M. Zapukhlyak, T. Kirchner, Michael Schulz

Physics Faculty Research & Creative Works

We have performed a kinematically complete experiment on transfer excitation in intermediate-energy proton-helium collisions. The differential cross sections were compared to double excitation data and a nonperturbative time-dependent calculation. This comparison reveals the importance of dynamic couplings between the motion of the heavy nuclei and electronic transitions and/or electron-electron correlation effects.

Cns Connections, Winter 2006-07, University Of Northern Iowa. College Of Natural Sciences.

CNS Connections

Inside this issue:

-- Message from the Dean
-- Mini-robots duel in sumo competition
-- Earth Science offers B.S. in air quality
-- College News
-- Biology prof helps test method to reduce erosion
-- Title II grants fund CNS science education projects
-- Update from the Centers
-- Change of address for Computer Science
-- Carver grants strengthen CNS programs
-- Partnership for Goods starts at UNI
-- Faculty and Student Research Highlights
-- Ensuring a bright future for UNI
-- Alumni News
-- CNS Advisory Board

Water Resources Year In Review - Winter 2006, Vol. 19, No. 2, Annis Water Resource Institute

AWRI Reviews

No abstract provided.

Samats : Semi-Automated Modelling And Texturing System, Joe Hegarty

Masters

The creation of detailed 3D (three-dimensional) building models has become an area of considerable research over the last couple of decades. The accurate modelling of buildings offers LBS (Location Based Services) applications in planning, cultural heritage, tourism and e-commerce among others. The approach taken by the majority of contemporary modelling systems that use terrestrial imagery taken from arbitrary locations requires the user to carry out manual correspondences across the image set. These correspondences are used for two purposes. Firstly, the correspondences are used to determine the exterior orientation parameters (position and orientation) of the cameras used to capture each image. …

Bound States In The Continuum In Quantum-Dot Pairs, Gonzalo Ordonez, Kyungsun Na, Sungyun Kim

Scholarship and Professional Work - LAS

It is shown that for two open quantum dots connected by a wire, “bound states in the continuum” of a single electron are formed at nearly periodic distances between the dots. This is due to Fabry-Pérot interference between quasibound states in each dot. The bound states are nonlocal, describing the electron trapped in both dots at the same time. Theoretical and numerical results show that trapped states exist even if the wire connecting the dots is relatively long.

Monte Carlo Least-Squares Fitting Of Experimental Signal Waveforms, Xianming Han, Vladimir Pozdina, C. Haridas, Prabhakar Misra

Scholarship and Professional Work - LAS

This paper focuses on why the regular least{squares ¯tting technique is unstable when used to ¯t exponential functions to signal waveforms, since such functions are highly correlated. It talks about alternative approaches, such as the search method, which has a slow convergence rate of 1=N1=M, for M parameters, where N is the number of computations performed. We have used the Monte Carlo method, utilizing both search and random walk, to devise a stable least{squares ¯tting algorithm that converges rapidly at a rate 1=N1=2, regardless of the number of parameters used in ¯tting the waveforms. The Monte Carlo approach has been …

Crafting A Measurement Framework Using A Goal-Question-Metric Approach, Panos K. Linos

Scholarship and Professional Work - LAS

A discussion on assessing successful Software Engineering Measurement (SEM) programs.

Comprehension And Maintenance Of Large Scale Multi-Language Software Applications: Open Issues And Challenges, Kostas Kontogiannis, Panos K. Linos, Kenny Wong

Scholarship and Professional Work - LAS

During the last decade, the number of software applications that have been deployed as a collection of components implemented in different programming languages and paradigms has increased considerably. When such applications are maintained, traditional program comprehension and reengineering techniques may not be adequate. In this context, this working session aims to stimulate discussion around key issues relating to the comprehension, reengineering, and maintenance of multi-language software applications. Such issues include, but are not limited to, the formalization, management, exploration, and presentation of multi-language program dependencies, as well as the development of practical toolsets for automating and easing the comprehension and …

The Sonic Representation Of Mathematical Data, Charlie Cullen

Doctoral

Conveying data and information using non-speech audio is an ever growing field of research. Existing work has been performed investigating sonfication and its applications, and this research seeks to build upon these ideas while also suggesting new areas of potential. In this research, initial work focused on the sonification of DNA and RNA nucleotide base sequences for analysis. A case study was undertaken into the potential of rhythmic parsing of such data sequences, with test results indicating that a more effective method of representing data in a sonification was required. Sonification of complex data such as DNA and RNA was …

Characterization Of An Acrylaminde Based Photopolymer For Fabrication Of Liquid Crystal Devices, Pavani Kotakonda

Conference Papers

Photopolymers are increasingly interesting as new materials for the fabrication of electro optical liquid crystal devices. Photoinduced surface relief gratings in dry, self developing acrylamide based photopolymers can be used to align liquid crystals (LCs) as an alternative to the rubbing technique. These optically recorded surface relief patterns can be used to fabricate electro-optical switchable LC Bragg gratings. An investigation of the dependence of photoinduced surface relief gratings on recording intensity and thickness of the photopolymer layer is reported. The surface relief gratings were filled with E7 LCs and a switchable LC diffraction grating was fabricated.

Dry Creek Long Term Watershed Study: Assessment Of Immediate Response Of Aquatic Macroinvertebrates To Watershed Level Harvesting And Thinning Of Streamside Management Zones, M. W. Griswold, R. T. Winn, Thomas Crisman, W. R. White

School of Geosciences Faculty and Staff Publications

Streamside Management Zones (SMZs) are meant to protect riparian habitat and the stream ecosystem. Benthic macroinvertebrates are recognized bioindicators of water quality in streams, typically occupying multiple trophic levels in these systems and providing food for vertebrates. Thus, it is important to understand the effects of harvest within and adjacent to the SMZ on macroinvertebrate assemblages. Benthic macroinvertebrates were sampled pre- and post-harvest from four firstorder streams draining the Dry Creek watershed in southwestern Georgia. A multi-habitat sampling procedure was used. Macroinvertebrates were identified and compared using biotic indices. Comparisons were made between streams within the pre-harvest period and between …

Assessing The Ssrn-Based Law School Rankings, Theodore Eisenberg

Cornell Law Faculty Publications

One noteworthy feature of the SSRN-based rankings is the high correlation between them and other rankings. Black and Caron report correlation coefficients between their two Social Science Research Network (SSRN) school rankings (one based on downloads from SSRN and one based on the number of papers posted on SSRN) and six other published rankings. The correlations provide a useful and creative measure of consistency across studies. If ranking studies are highly correlated, then the least expensive and most efficient study to conduct can be used without incurring the expense and delay of the more labor-intensive ranking methods. SSRN has a …

Characterization And Interpretation Of The Cephalopod Marker Bed, Oakes Quarry Park, Fairborn, Ohio, Jessica Nicole Mcdonough

Browse all Theses and Dissertations

A distinct sequence of orange-brown, fossiliferous grainstones with interbedded blue mudstones exists in the upper portion of the Silurian-aged (Llandoverian) Brassfield Formation exposure at Oakes Quarry Park, Fairborn, Ohio. The unit is locally referred to as the cephalopod marker bed as it can be easily identified and is continuous throughout the quarry. The unit varies considerably in thickness (0.3m-0.9m) and contains a variety of sedimentary structures and fossils indicative of a warm, shallow marine environment subject to wave action. Dominant fossils within the unit include echinoderms, cephalopods, bryozoans, abraded mollusks, gastropods, brachiopods, and trilobites. Less-common fossil organisms within the unit …

Specification For Visual Requirements Of Work-Centered Software Systems, James Robert Knapp

Browse all Theses and Dissertations

Work-centered software systems function as inherent work-aiding systems. Based on the design concept for a work-centered support system (WCSS), these software systems support user tasks and goals through both direct and indirect aiding methods within the interface client. In order to ensure the coherent development and delivery of work-centered software products, WCSS visual interface requirements must be specified in order to capture the cognitive and work-aiding aspects of the user interface design. Without the ability to specify such original requirements, the probability of creating an accurate and effective work-centered software system is significantly reduced. A new visual requirements specification language …

The Analysis Of Core Competence For Chinese Oil Shipping Company, Binmeng. Mo

World Maritime University Dissertations

During the past decade, China’s crude oil import has risen sharply, which demands the immediately matching shipping capacity of the domestic oil shipping companies. Therefore, how to steer the Chinese oil shipping enterprises towards a promising development is a very big problem facing the Chinese entrepreneurs. This paper has tried to provide some practical suggestion to improve Chinese oil shipping companies’ core competence based on the analysis of Chinese Shipping Tanker Company, which is typical representative for this industry. After having studied the measuring methods of the core competence and the index system building principles, the author constructs a complete …

Model Generation For Generalized Quantifiers Via Answer Set Programming, Yuliya Lierler, Günther Görz

Computer Science Faculty Proceedings & Presentations

For the semantic evaluation of natural language sentences, in particular those containing generalized quantifiers, we subscribe to the generate and test methodology to produce models of such sentences. These models are considered as means by which the sentences can be interpreted within a natural language processing system. The goal of this paper is to demonstrate that answer set programming is a simple, efficient and particularly well suited model generation technique for this purpose, leading to a straightforward implementation.

Elementary Sets For Logic Programs, Martin Gebser, Joohyung Lee, Yuliya Lierler

Computer Science Faculty Proceedings & Presentations

By introducing the concepts of a loop and a loop formula, Lin and Zhao showed that the answer sets of a nondisjunctive logic program are exactly the models of its Clark’s completion that satisfy the loop formulas of all loops. Recently, Gebser and Schaub showed that the Lin-Zhao theorem remains correct even if we restrict loop formulas to a special class of loops called “elementary loops.” In this paper, we simplify and generalize the notion of an elementary loop, and clarify its role. We propose the notion of an elementary set, which is almost equivalent to the notion of an …

Experiments With Sat-Based Answer Set Programming, Enrico Giunchiglia, Yuliya Lierler, Marco Maratea, A. Tacchella

Computer Science Faculty Proceedings & Presentations

Answer Set Programming (ASP) emerged in the late 1990s as a new logic programming paradigm which has been successfully applied in various application domains. Propositional satisfiability (SAT) is one of the most studied problems in Computer Science. ASP and SAT are closely related: Recent works have studied their relation, and efficient SAT-based ASP solvers (like assat and Cmodels) exist. In this paper we report about (i) the extension of the basic procedures in Cmodels in order to incorporate the most popular SAT reasoning strategies, and (ii) an extensive comparative analysis involving also other state-of-the-art answer set solvers. The experimental analysis …