Digital Commons Network^™

On The Numerical Solution Of The Cylindrical Poisson Equation For Isolated Self -Gravitating Systems., Howard Saul Cohl

LSU Historical Dissertations and Theses

This dissertation addresses the need for an accurate and efficient technique which solves the Poisson equation for arbitrarily complex, isolated, self-gravitating fluid systems. Generally speaking, a potential solver is composed of two distinct pieces: a boundary solver and an interior solver. The boundary solver computes the potential, phi(xB) on a surface which bounds some finite volume of space, V, and contains an isolated mass-density distribution, rho(x). Given rho(x) and phi(xB), the interior solver computes the potential phi(x) everywhere within V. Herein, we describe the development of a numerical technique which efficiently solves Poisson's equation in cylindrical coordinates on massively parallel …

Clarinet Concertos By Post World War Ii Generation Norwegian Composers: Bjorn Kruse, Olav Berg, And Rolf Wallin., Beverly Ann Gibson

LSU Historical Dissertations and Theses

A substantial body of Norwegian clarinet literature exists that is infrequently performed outside of the Scandinavian countries and Europe. A new generation of composers emerged in the 1980s who have made visible their own individual approaches to composition. This monograph focuses on a selection of clarinet concertos composed by Bjorn Kruse (b. 1946), Olav Berg (b. 1949), and Rolf Wallin (b. 1957) which represent the most extensive pieces for clarinet in the respective composers' outputs to date and have been awarded prizes in composition contests. The composers have distinguished themselves as leading figures in the contemporary music scene in Norway, …

Pine-Polyethylene (Wood -Polymer) Composites: Synthesis And Mechanical Behavior Characterization., Parviz S. Razi

LSU Historical Dissertations and Theses

Processing of recycled wood chips, recently produced after extraction of creosote from telephone posts and railroad crossties, and combining them with a recycled polymer for the synthesis of novel composite materials would initiate a new trend toward preservation of natural resources. The challenge is taken in this work to produce and study the properties of such materials for further advancement of science. In the present study, addition of pine wood chips to HDPE reduced the tensile strength and break strain in tensile loading. Smaller wood chips generally resulted in smaller reductions. Peak load, modulus of rupture and stiffness were slightly …

Design Of Work-Rest Schedules For Vdt Operators., Rana Balci

LSU Historical Dissertations and Theses

The number of musculoskeletal and psychological discomforts is increasing as a result of continuing growth of VDT work. Although ergonomic improvements in workstation design can be applied, an effective work-rest schedule is an economical way to reduce these problems. The objective of this research was to determine an effective work-rest schedule for VDT operators. In addition to a discomfort questionnaire, performance and electromyography measurements from trapezius and flexor carpi radialis were used. Three different work-rest schedules were applied: 60-minute work/10-minute rest, 30-minute work/5-minute rest, and for the third schedule, the subjects received four breaks from VDT work each hour additional …

How Does Undergraduate College Biology Students' Level Of Understanding, In Regard To The Role Of The Seed Plant Root System, Relate To Their Level Of Understanding Of Photosynthesis?, James Gicheha Njeng'ere

LSU Historical Dissertations and Theses

This research study investigated how undergraduate college biology students' level of understanding of the role of the seed plant root system relates to their level of understanding of photosynthesis. This research was conducted with 65 undergraduate non-majors biology who had completed 1 year of biology at Louisiana State University in Baton Rouge and Southeastern Louisiana University in Hammond. A root probe instrument was developed from some scientifically acceptable propositional statements about the root system, the process of photosynthesis, as well as the holistic nature of the tree. These were derived from research reviews of the science education and the arboriculture …

Improving Searches For Gravitational Wave Bursts., Carroll Andrew Morse

LSU Historical Dissertations and Theses

The first half of this dissertation discusses the details of calibrating a resonant mass gravitational wave antenna and determining its sensitivity. We dispense with the assumption of a perfectly tuned antenna and transducer and model the system using a coordinate rotation. We demonstrate that all of the important model parameters can be directly measured. We demonstrate that the signal response of the two detector modes should be equal despite any mistuning and that the mistuning parameter can be measured in two separate ways. These properties are useful for determining the degree to which a real detector's behavior parallels that of …

An Analysis And Performer's Guide To The Sonatine For Flute And Piano By Pierre Boulez., Diana M. Tiffany

LSU Historical Dissertations and Theses

In spite of the preeminence of its composer, the Sonatine for Flute and Piano by Pierre Boulez is not a well known work. The piece poses truly formidable technical and aesthetic challenges for players and audiences. The purpose of this study is to present an analysis and some practical suggestions for flutists preparing the piece for performance. This serial-based work is divided into four continuous main stanzas, each demonstrating a different style and varying compositional techniques while using the same row. The repetition of specific pitch-class sets, rhythm motives, and pitch classes within each stanza lends each one aurally identifiable …

An Empirical Examination Of Maximum Entropy Estimation., Randall Charles Campbell

LSU Historical Dissertations and Theses

Maximum entropy estimation is a relatively new estimation technique in econometrics. We carry out several Monte Carlo experiments using real data as a basis in order to understand the properties of the maximum entropy estimator. We compare the maximum entropy and generalized maximum entropy estimators to traditional estimation techniques in linear regression, binary choice, and multinomial choice models. In addition, we discuss maximum entropy estimation in censored and truncated regression models. We find that the generalized maximum entropy estimator dominates the logit estimator and the multinomial logit estimator in Monte Carlo experiments. The generalized maximum entropy estimator in discrete choice …

Development Of Immunochemical Methods For Gossypol Analysis., Xi Wang

LSU Historical Dissertations and Theses

Gossypol is a reactive polyphenolic compound present in the cotton plant. During cottonseed processing, gossypol can react with other compounds to form bound gossypol. Gossypol analyses using chemical methods do not always agree with its bioavailability to animal possibly because of various bound forms of gossypol with different stabilities in vivo and the (+/-)-gossypol enantiomers with different biological activities. The objectives of this research were to produce anti-gossypol antibodies and use antibodies to study gossypol chemistry and to analyze gossypol in cottonseed samples and cottonseed by-products. Polyclonal antibodies were produced from rabbits after they were immunized with gossypol-LPH (Limulus polyphemus …

Rhetorical Theory: Discourse Practices Of Utopian Communities., Irvin Andreu Wilhite

LSU Historical Dissertations and Theses

This study is interested in idealized expressions of political ideology in utopian science fiction literature written during the Cold War following World War II. Accordingly, a dramatistic analysis is presented regarding fourteen science fiction novels published between 1949 and 1959 which describes their thematic content with respect to consonant and contrasting moral/social/political positions and the influx of advancing technology. A description of the canonical works precedes this analysis. Subsequently, contemporary related studies are lightly analyzed for comparative and contextual considerations. Conclusions address the importance of rhetoric and performance in restoring the destabilized balance of power as an aftermath of violent …

Preparing New Teachers To Use Technology: A Comparative Study Of Preservice Teacher Education Programs., Patricia Ann Duhon

LSU Historical Dissertations and Theses

The purpose of this descriptive study was to describe and analyze the technology components in three teacher education programs, and to investigate the technological preparedness of recently graduated first-year elementary (K--5) teachers. The research questions addressed were: (a) How are the teacher education programs at each university in this study preparing students to integrate technology into their classrooms and instruction, and how do the programs compare? (b) How do recently graduated first-year teachers at each university rate their skills in using technology, and how do their ratings compare? (c) How and to what extent do recently graduated first-year teachers at …

Scaling Simulations Of Reconfigurable Meshes., Jose Alberto Fernandez Zepeda

LSU Historical Dissertations and Theses

This dissertation deals with reconfigurable bus-based models, a new type of parallel machine that uses dynamically alterable connections between processors to allow efficient communication and to perform fast computations. We focus this work on the Reconfigurable Mesh (R-Mesh), one of the most widely studied reconfigurable models. We study the ability of the R-Mesh to adapt an algorithm instance of an arbitrary size to run on a given smaller model size without significant loss of efficiency. A scaling simulation achieves this adaptation, and the simulation overhead expresses the efficiency of the simulation. We construct a scaling simulation for the Fusing-Restricted Reconfigurable …

The Effect Of Accurate/Inaccurate Teacher Instruction, High/Low Teacher Delivery, And On - /Off -Task Student Behavior On Musicians' Evaluation Of Teacher Effectiveness., Melissa Katia Madsen

LSU Historical Dissertations and Theses

The primary purpose of this investigation was to determine the effect of accurate/inaccurate teacher instruction, high/low teacher delivery and on-/off-task student behavior on musicians' evaluations of teaching effectiveness. An additional purpose of this study was to determine whether differences in the musicians' evaluative responses of teacher effectiveness would occur due to differences in their experience level. Subjects (N = 168) were musicians and were grouped accordingly: (1) grades 6--8; (2) grades 9--12; (3) undergraduate; and (4) experienced teacher. The subjects viewed and evaluated a videotape of eight teaching segments for teacher effectiveness. The segments had been simulated by the investigator …

Policy And Science: A Review Essay Of Wilson's Consilience: The Unity Of Knowledge, Thomas Earl Geu

South Dakota Law Review

No abstract provided.

Uri Undergraduate And Graduate Course Catalog 1999-2000, University Of Rhode Island

URI Course Catalogs Archive

This is a digitized, downloadable version of the Undergraduate and Graduate course catalog.

The Presence Of Edge Contact And Its Influence On The Debonding Of Patched Panels, Anette M. Karlsson, W. J. Bottega

Mechanical Engineering Faculty Publications

A formulation is presented which accounts for configurations of debonding patched cylindrical panels for which the edge of the debonded segment of the patch maintains sliding contact with the corresponding base structure. The formulation is incorporated with that which accounts for configurations for which a contact zone is present and for which no contact between the debonded segments of the patch and base structure occurs during debonding. Analyses are performed for two types of loading conditions: Applied circumferential tension and applied internal pressure. Results of numerical simulations based on analytical solutions of the problems of interest are presented in the …

When Y2k Causes Economic Loss To Other Property, Peter A. Alces, Aaron S. Book

Minnesota Law Review, Vols. 1-106:1 (1917-2021)

No abstract provided.

Quatsch!, Matthew W. Finkin

Minnesota Law Review, Vols. 1-106:1 (1917-2021)

No abstract provided.

Crossings, 1999, Roger Williams University

Yearbooks

No abstract provided.

The Confusion Of Causes And Reasons In Forensic Psychology: Deconstructing Mens Rea And Other Mental Events, 33 U. Rich. L. Rev. 107 (1999), Joel R. Cornwell

UIC Law Open Access Faculty Scholarship

No abstract provided.

The Ole Miss, University Of Mississippi

The Ole Miss (1897-)

The Ole Miss Annual 1999

Speed Range For Breakdown Waves, Mostafa Hemmati, Eric L. George, Frances Terry

Journal of the Arkansas Academy of Science

Considering the electrons as the main element in breakdown wave propagation and using a one-dimensional, steady-state, three-fluid, hydrodynamical model, previous investigations have resulted in the completion of a set of equations for conservation of mass, momentum, and energy. We will use the terms proforce and antiforce waves, depending on whether the applied electric field force on electrons is with or against the direction of wave propagation. In the case of antiforce waves, the electron gas temperature and therefore the electron fluid pressure is assumed to be large enough to sustain the wave propagation down the discharge tube. For strong discontinuity …

Statistical Analysis Of Climatic Variables In The Arkansas-Red River Basin, Felix Tendeku

Journal of the Arkansas Academy of Science

Surface meteorological data for the Arkansas-Red River basin are analyzed in order to provide statistical data for modeling and simulation of climatic trends within the basin. The variables studied are the ambient temperature, temperature range and precipitation. Daily and monthly mean values, spatial and seasonal variations, and frequency distributions are determined.

Commencement Program (June 1999), Csusb

CSUSB Commencement Programs

No abstract provided.

Grade Equivalents: Accuracy And Certainty Of Interpretations Among Parents, Teachers, And School Psychologists, Eric R. Smith

Masters Theses

Scores on standardized tests (e.g., Iowa Test of Basic Skills, Wechsler Intelligence Scale for Children III, Wechsler Individual Achievement Test) can be represented by a number of different metrics. One of the ways scores can be represented is with grade equivalents, which tend to be popular with parents and teachers because they seem to be fairly easy to understand. However, several researchers have claimed that grade equivalents are often misinterpreted. Standard scores are viewed by many researchers as the superior type of derived score. However, standardized scores can be difficult to understand, particularly for individuals with little or no training …

Utilization Of Printer Resources Within A Computer Graphics Department: A Print Queue Analysis, Prentice Frazier

Theses and Dissertations

This paper examines print queue management for the graphics department of a financial services company. The current network configuration has proven to be sub-optimal. The IT department is currently undergoing testing of possible alternative network configurations. The objective is to improve performance by leveraging existing resources with new technology. In this paper, the effect of consolidating the queue into one primary queue manager is analyzed, along with prioritizing print jobs, and forecasting future printer needs. Analysis was performed using queuing theory concepts along with an analysis of both steady state and transient behavior using simulation modeling.

Some Aspects Of The Adsorption Of A Lennard-Jones Gas On A Rough Surface, Douglas Henderson, Pawel Bryk, Stefan Sokolowski

Faculty Publications

We study the adsorption, including wetting, of a Lennard-Jones gas on a rough surface consisting of rough layer on a smooth substrate with which the gas interacts via a 9-3 potential. The rough layer is two molecular diameters thick and consists of a disordered quenched matrix of hard spheres. As well as interacting with the other matrix spheres by the hard-sphere potential, the matrix molecules interact with the gas molecules by the hard-sphere potential. Hence, on average, the degree to which the gas molecules can approach the substrate depends only on the density of the matrix layer. The density of …

Report Of The Sunflower Working Group, Allison Snow, Helen Alexander, Joe Caroline, Svata M. Louda, Diana Pilson, Craig Roseland, Gerald Seiler, Diane Shanahan, Jeff Wolt

School of Biological Sciences: Faculty Publications

Cultivated sunflower (Helianthus annuus) is grown in many temperate, semi-dry regions of the world, often in rotation with small grain cereals such as wheat. The largest areas of sunflower cultivation in the US are in the northern plains (North and South Dakota) and southern, high plains (western Nebraska and Kansas, plus areas of Colorado and Texas) where the growing season is often too dry and/or too short for profitable soybean and corn production. Most commercial sunflower is the oilseed type; in addition, the crop is grown for confectionery seed and is common as an ornamental in home gardens …

Optimisation Studies In A Batch Pharmaceutical Company, Sarah Fitzgerald

Theses

This thesis outlines a collaborative project between industry and academia based on a short term research contract.

In the past in Eli Lilly, process optimisation in a multi-purpose, modular building had been mainly confined to equipment commissioning and new product development. It was necessary to embark upon an exercise to develop an optimisation programme m order to meet the increased requirements and demands of the building. Increased market demands, through the introduction of over-the-counter (OTC) drugs, and the demand for cycle time reduction through the expiry of existing patents, made the need for optimisation inevitable.

The purpose of this thesis …

Laser Absorption Measurements Of The Helium Triplet Metastable In An Electrical Discharge Using A Distributed-Bragg Reflecting Diode Laser, Michael W. Millard

Graduate Theses and Dissertations

No abstract provided.