Digital Commons Network^™

Resources- Sep/Oct. 1999, Osp Staff

Resources, from the Office of Sponsored Programs

No abstract provided.

Resources- Jul/Aug. 1999, Osp Staff

Resources, from the Office of Sponsored Programs

No abstract provided.

Resources- Mar/Apr. 1999, Osp Staff

Resources, from the Office of Sponsored Programs

No abstract provided.

Resources- Jan/Feb. 1999, Osp Staff

Resources, from the Office of Sponsored Programs

No abstract provided.

Northeastern News- Winter 1999, Lisa D. Cooper

NEIU News

No abstract provided.

Steel Bridge Protection Policy: Life Cycle Cost Analysis And Maintenance Plan, Jon D. Fricker, Tarek Zayed, Luh M. Chang

JTRP Technical Reports

The study identifies various painting systems that are successfully used in Indiana's surrounding states and other industries. the identified systems are further screened and evaluated. After prudently comparing INDOT's inorgainc zinc/vinyl system with the waterborne acrylic system, the moisture cure urethane coating system and the 3-coat system of zinc-epoxy-urethane, the sresults show that thte new 3-coat system fulfills INDOT's needs with the most benefits. Therefore, the 3-coat system is recommended to replace INDOT present inorgaic zinc/vinyl system. To deal with the problems facing the lead-based paint, a comparison between full-removal and over-coating alternatives is made. Results show that over-coating might …

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Design And Optimization Of Chromophores For Liquid Crystal And Photorefractive Applications, Kenneth D. Singer, V. Ostoverkhov, Rolfe G. Petschek

Faculty Scholarship

Organic chromophores have been exploited for a wide range of discrete optical and electronic functions as well as a growing number of combined opto-electronic functions. We are pursuing development of organic and polymer materials for a range of applications that require properties including liquid crystallinity, second order optical nonlinearity, photorefractivity and, more recently, special nonlinear optical behavior involving molecular chirality.

Database Protection In A Digital World, Mary Maureen Brown, Robert M. Bryan, John M. Conley

Faculty Publications

No abstract provided.

An Intelligent Editor For Natural Language Processing Of Unrestricted Text, Demetrios George Glinos

Retrospective Theses and Dissertations

The understanding of natural language by computational methods has been a continuing and elusive problem in artificial intelligence. In recent years there has been a resurgence in natural language processing research. Much of this work has been on empirical or corpus-based methods which use a data-driven approach to train systems on large amounts of real language data. Using corpus-based methods, the performance of part-of-speech (POS) taggers, which assign to the individual words of a sentence their appropriate part of speech category (e.g., noun, verb, preposition), now rivals human performance levels, achieving accuracies exceeding 95%. Such taggers have proved useful as …

Dynamic Modeling Of Pwm And Single-Switch Single-Stage Power Factor Correction Converters, Guangyong Zhu

Retrospective Theses and Dissertations

The concept of averaging has been used extensively in the modeling of power electronic circuits to overcome their inherent time-variant nature. Among various methods, the PWM switch modeling approach is most widely accepted in the study of closed-loop stability and transient response because of its accuracy and simplicity. However, a non-ideal PWM switch model considering conduction losses is not available except for converters operating in continuous conduction mode (CCM) and under small ripple conditions. Modeling of conductor losses under large ripple conditions has not been reported in the open literature, especially when the converter operates in discontinuous conduction mode (DCM). …

Middle Archaic And Late Archaic/Woodland Patch Use In The Little Missouri Badlands, North Dakota, Greg L. Wermers

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Gis Education For Agencies In Montana That Manage Forest Resources, Judy M. Troutwine

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Impact Of School Reform: A Follow-Up Study Of The Framework For Aesthetic Literacy, Janice Lenore Clinard

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Alternating Day Block Schedule: Its Impact On Musical Performing Organizations In Grades 9-12, John J. Matt

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Petrogenesis Of The Adel Mountains Volcanic Field Central Montana, Betsy Cunningham

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Intelligent Support Of Gait Analysis, Kathy A. Johnson, Sheldon R. Simon, Philip J. Smith, Jack W. Smith

Faculty, Staff and Student Publications

No abstract provided.

Predicting The Risk Of Obesity Using A Bayesian Network, Christopher C. Bunn, Min Du, Keyi Niu, Todd R. Johnson, Walker S. Poston, John P. Foreyt

Faculty, Staff and Student Publications

No abstract provided.

A Biologically Inspired Connectionist Model For Image Feature Extraction In 2d Pattern Recognition, Cihan H. Dagli, Raymond K. Chafin

Engineering Management and Systems Engineering Faculty Research & Creative Works

A new edge detection method is presented which borrows from recent research into primate vision biology, and offers improved noise performance over classical methods. Beginning with spatio-temporal shunting models for retinal cones, horizontal cells, bipolar cells, and retinal ganglions, a set of simplified steady-state solutions are developed which lend themselves to efficient computation on standard computer equipment. The retinal model output is found to be nominally equivalent to the classical edge detector, but is produced differently. A simplified model of the lateral geniculate nucleus (LGN) has been produced. Taking the output of the retinal model, the LGN simple cell and …

Performance Study Of The 1911 Wright Brothers Model B Aircraft And Propeller, Robert Egenolf

Theses

A performance evaluation of the 1911 Wright Brothers Model B aircraft and propeller is to be presented. Background, contemporary aviation history, and the Wright analysis will precede the evaluation in order to recreate the situation in which the Brothers were operating. Following this brief history, theories regarding propellers will be examined in order to understand better an efficiency evaluation. Finally, theoretically generated data will be compared to the known values at the time of the Model B's flight. Theoretical data will be gathered from two sources; (1) a software program dedicated to the efficiency prediction of propellers, and (2) a …

Literature-Based Language Arts Extended To Mathematics, Carrie L. Johnson

Graduate Research Papers

A literature-based language arts program provides opportunities for children to create meaning through quality literature experiences. Children's learning is integrated, and connections are made across the curriculum. The mathematics and language process are related and can be integrated into units of study through the genres of literature.

A unit of study on circles provided kindergarten children with quality literature and related expressive activities that facilitated the understanding of the concept of circle. As a result of this literature-based language arts program extended to mathematics, children's knowledge was integrated, peer interaction increased, and the reading-writing processes were connected. Children's enthusiasm for …

Home Schooling, Julie L. Lange

Graduate Research Papers

This study addresses the issue of home schooling in our state and our nation. Benefits and disadvantages associated with home schooling are discussed. Guidelines for planning a successful home schooling program are outlined for parents. Conclusions were drawn from the literature review, and recommendations were made for the future of home schooling.

Literature Webs In The Literature Based Elementary Reading Program: An Annotated Bibliography, Nancy O'Keefe

Graduate Research Papers

Every classroom is a collection of unique individuals with varying abilities and interests. These differences are especially apparent in the elementary reading classroom. Though individual students are reading at many different levels it is still possible for them to work together and to learn from each other.

It is the purpose of this project to assist the third, fourth, and fifth grade teachers of Karen Acres Elementary School in Urbandale, Iowa through the development of multi-level reading webs. These webs may be used to differentiate instruction for those reading both above and below grade level without segregating students into separate …

A Matrix-Based Approach To Global Locality Optimization, Mahmut Kandemir, Alok Choudhary, J. Ramanujam, Prith Banerjee

Faculty Publications

Global locality optimization is a technique for improving the cache performance of a sequence of loop nests through a combination of loop and data layout transformations. Pure loop transformations are restricted by data dependencies and may not be very successful in optimizing imperfectly nested loops and explicitly parallelized programs. Although pure data transformations are not constrained by data dependencies, the impact of a data transformation on an array might be program-wide; that is, it can affect all the references to that array in all the loop nests. Therefore, in this paper we argue for an integrated approach that employs both …

Calculation Of The Electron Self-Energy For Low Nuclear Charge, Ulrich D. Jentschura, Peter J. Mohr, Gerhard Soff

Physics Faculty Research & Creative Works

We present a nonperturbative numerical evaluation of the one-photon electron self-energy for hydrogenlike ions with low nuclear charge numbers Z = 1 to 5. Our calculation for the 1S state has a numerical uncertainty of 0.8 Hz for hydrogen and 13 Hz for singly ionized helium. Resummation and convergence acceleration techniques that reduce the computer time by about 3 orders of magnitude were employed in the calculation. The numerical results are compared to results based on known terms in the expansion of the self-energy in powers of Zα.

An Iron-Based Ecosystem Model Of The Central Equatorial Pacific, Carrie L. Leonard, Charles R. Mcclain, Ragu Murtugudde, Eileen E. Hofmann, Lawrence W. Harding Jr.

CCPO Publications

The central and eastern equatorial Pacific region is characterized by lower than expected phytoplankton biomass and primary production given the relatively high ambient nitrate concentrations. These unusual conditions have spawned several field programs and laboratory experiments to determine why this high nitrate-low chlorophyll pattern persists in this region. To synthesize the results from these field programs, as well as providing additional evidence in support of the iron hypothesis, we developed a one-dimensional, nine-component ecosystem model of 0 degrees N 140 degrees W. The model components include two phytoplankton size fractions, two zooplankton size fractions, two detrital size fractions, dissolved iron, …

Modeling The Msx Parasite In Eastern Oyster (Crassostrea Virginica) Populations. I. Model Development, Implementation, And Verification, Susan Ford, Eric Powell, John Klinck, Eileen Hofmann

CCPO Publications

A mathematical model simulating the host-parasite-environmental interactions of eastern oysters (Crassostrea virginica) and the pathogen, Haplosporidium nelsoni, which causes MSX disease, has been developed. The model has 2 components. One replicates the infection process within the oyster and the other simulates transmission. The infection-development component relies on basic physiological processes of both host and parasite, modified by the environment, to reproduce the observed annual prevalence cycle of H. nelsoni. Equations describing these rates were constructed using data from long-term field observations, and field and laboratory experiments. In the model, salinity and temperature have direct effects upon …

Analyzing Mean Transport Equations Of Turbulence And Linear Disturbances In Decaying Flows, W. D. Thacker, T. B. Gatski, C. E. Grosch

CCPO Publications

The decay of laminar disturbances and turbulence in mean shear-free flows is studied. In laminar flows, such disturbances are linear superpositions of modes governed by the Orr-Sommerfeld equation. In turbulent flows, disturbances are described through transport equations for representative mean quantities. The link between a description based on a deterministic evolution equation and a probability-based mean transport equation is established. Because an uncertainty in initial conditions exists in the laminar as well as the turbulent regime, a probability distribution must be defined even in the laminar case. Using this probability distribution, it is shown that the exponential decay of the …