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2000

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Plastic Manufacturing Process Selection Methodology Using Self-Organizing Map (Som)/Fuzzy Analysis, R. Raviwongse, Venkat Allada, T. Sandidge Jan 2000

Plastic Manufacturing Process Selection Methodology Using Self-Organizing Map (Som)/Fuzzy Analysis, R. Raviwongse, Venkat Allada, T. Sandidge

Engineering Management and Systems Engineering Faculty Research & Creative Works

For plastic products, one of the crucial decisions made during the preliminary design stage is the selection of an appropriate manufacturing process. In many industries, the selection of the manufacturing process is primarily based on the empirical knowledge and past experience of the manufacturing personnel. This selection procedure may result in inconsistent or poor choices if the manufacturing personnel fail to map correctly the product characteristics with the manufacturing efficacy of various manufacturing processes. This paper presents an intelligent self-organizing map (SOM)/fuzzy-based model to aid designers in the selection of an appropriate plastic manufacturing process. The plastic part attributes are …

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Fourier Based Three Phase Power Metering System, Scott C. Smith, M. J. Devaney Jan 2000

Fourier Based Three Phase Power Metering System, Scott C. Smith, M. J. Devaney

Electrical and Computer Engineering Faculty Research & Creative Works

The increased application of higher frequency nonlinear loads, such as electronic fluorescent ballasts and higher speed adjustable drives, has resulted in the need to monitor the higher power system harmonics which were largely ignored in earlier power monitors. Addressing this need requires a meter with substantially higher sample rate and greater computational power. This paper describes a zero-blind, three-phase, three-element power meter that samples three voltages and four currents at 256 points per cycle. The instrument relies on the FFT to compute real and reactive power at each harmonic and reports total real, reactive, and distortion power on each phase. …

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Dolomitization And Dolomite Neomorphism: Trenton And Black River Limestones (Middle Ordovician) Northern Indiana, U.S.A., M. I N Chan, Jay M. Gregg, Kevin L. Shelton Jan 2000

Dolomitization And Dolomite Neomorphism: Trenton And Black River Limestones (Middle Ordovician) Northern Indiana, U.S.A., M. I N Chan, Jay M. Gregg, Kevin L. Shelton

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The Trenton and Black River Limestones are dolomitized extensively along the axis of the Kankakee Arch in Indiana, with the proportion of dolomite decreasing to the south and southeast of the arch. Planar and nonplanar dolomite replacement textures and rhombic (type 1) and saddle (type 2) void-filling dolomite cements are present. Three stages of dolomitization, involving different fluids, are inferred on the basis of petrographic and geochemical characteristics of the dolomites. Nonferroan planar dolomite has relatively high δ18O values (-1.8 to -6.1‰ PDB) and has 87Sr/86Sr ratios (0.70833 to 0.70856) that overlap those of Middle Ordovician seawater. …

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Application Of Electron-Attachment Reactions To Enhance Selectivity Of Electron-Capture Detector For Nitroaromatic Explosives, Mark Gehrke, Shubhender Kapila, V. J. Flanigan Jan 2000

Application Of Electron-Attachment Reactions To Enhance Selectivity Of Electron-Capture Detector For Nitroaromatic Explosives, Mark Gehrke, Shubhender Kapila, V. J. Flanigan

Chemistry Faculty Research & Creative Works

The differences in the extent of electron-attachment reactions between thermal electrons and selected classes of organic molecules with high electron affinities were investigated. the investigations showed that interactions of thermal electrons with nitroaromatic compounds lead to the formation of neutral products with very low electron affinities. by contrast, a number of other analytes with high electron affinities such as polyhalogenated organic compounds, lead to products with high electron affinities. This difference was exploited to differentiate between nitroaromatic and polychlorinated organic compounds with a tandem arrangement consisting of two electron-capture detectors connected in series with an electron-attachment reactor.

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Border Detection On Digitized Skin Tumor Images, Z. Zhang, William V. Stoecker, Randy Hays Moss Jan 2000

Border Detection On Digitized Skin Tumor Images, Z. Zhang, William V. Stoecker, Randy Hays Moss

Chemistry Faculty Research & Creative Works

A radial search technique is presented for detecting skin tumor borders in clinical dermatology images. First, it includes two rounds of radial search based on the same tumor center. The first-round search is independent, and the second-round search is knowledge-based tracking. Then a rescan with a new center is used to solve the blind-spot problem. The algorithm is tested on model images with excellent performance, and on 300 real clinical images with a satisfactory result

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The Influence Of Poly(Acrylic Acid) Molar Mass On The Properties Of Polyalkenoate Cements Formed From Zinc Oxide/Apatite Mixtures, Sinead Kenny, Robert G. Hill, Mark R. Towler Jan 2000

The Influence Of Poly(Acrylic Acid) Molar Mass On The Properties Of Polyalkenoate Cements Formed From Zinc Oxide/Apatite Mixtures, Sinead Kenny, Robert G. Hill, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

The influence of poly (acrylic acid) molar mass was investigated on cements formed from zinc oxide-apatite mixtures at three aging times: one, seven and 28 days. Cements based on both hydroxyapatite and fluorapatite were investigated. The compressive strength, un-notched fracture strength and fracture toughness increased markedly with poly (acrylic acid) molar mass. The fracture toughness and un-notched fracture strength increased with aging time for the two highest molar mass cements but decreased with time for the two lowest molar mass cements. The greater chain entanglement density present in the higher molar mass cements is thought to contribute significantly to the …

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Pyrolysis-Mass Spectrometry For Rapid Classification Of Oysters According To Rearing Area, J. Krupcík, P. Oswald, I. Spánik, P. Májek, M. Bajdichová, P. Sandra, Daniel W. Armstrong Jan 2000

Pyrolysis-Mass Spectrometry For Rapid Classification Of Oysters According To Rearing Area, J. Krupcík, P. Oswald, I. Spánik, P. Májek, M. Bajdichová, P. Sandra, Daniel W. Armstrong

Chemistry Faculty Research & Creative Works

Current concern for the safety and traceability of food, as well as the desire of oyster farmers, for marketing reason, to emphasize the geographical origin of their production, requires new methods to make possible a real product identification. In this study, 181 oyster samples were analyzed to determine their origin area. These samples were collected in nine French rearing areas at four different times of the year (spring, summer, and the beginning and end of autumn) and from four to eight sites in each area to provide a variability parameter. Analysis of fingerprints after Curie point pyrolysis-mass spectrometry, by an …

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Enantiomeric High-Performance Liquid Chromatographic Separation Of Β- Substituted Tryptophan Analogues, G. Török, A. Péter, E. Vékes, J. Sápi, M. Laronze, J. Y. Laronze, Daniel W. Armstrong Jan 2000

Enantiomeric High-Performance Liquid Chromatographic Separation Of Β- Substituted Tryptophan Analogues, G. Török, A. Péter, E. Vékes, J. Sápi, M. Laronze, J. Y. Laronze, Daniel W. Armstrong

Chemistry Faculty Research & Creative Works

The high-performance liquid chromatographic enantioresolution of β- substituted tryptophan analogues by direct and indirect methods is reported. The direct separation was carried out on chiral crown ether-bonded, on the macrocyclic antibiotic teicoplanin-bonded or on different derivatized β- cyclodextrin-bonded phases. The indirect resolution was achieved by applying pre-column derivatization with the chiral reagents 1-fluoro-2,4- dinitrophenyl-5-L-alanine amide (FDAA) and 2,3,4,6-tetra-O-acetyl-β-D- glucopyranosyl isothiocyanate (GITC). In the separation of all four isomers of the analytes, the indirect methods seemed to be more efficient than the direct methods. In most cases, the FDAA derivatives of the stereoisomers could be separated with better selectivity in methanol-containing …

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Adaptive Critic Based Neurocontroller For Turbogenerators With Global Dual Heuristic Programming, Ganesh K. Venayagamoorthy, Donald C. Wunsch, Ronald G. Harley Jan 2000

Adaptive Critic Based Neurocontroller For Turbogenerators With Global Dual Heuristic Programming, Ganesh K. Venayagamoorthy, Donald C. Wunsch, Ronald G. Harley

Electrical and Computer Engineering Faculty Research & Creative Works

Turbogenerators are nonlinear time varying systems. This paper presents the design of a neurocontroller for such a turbogenerator that augments/replaces the traditional automatic voltage regulator (AVR) and the turbine governor using a novel technique based on the adaptive critic designs (ACDs) with emphasis on global dual heuristic programming (GDHP). Simulation results are presented to show that the neurocontroller derived with the GDHP approach is robust and its performance is better when compared with that derived with other neural network technique, especially when system conditions and configuration changes.

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Advances Of Gyromagnetic Electronics For Emc Problems, Marina Koledintseva, L. K. Mikhailovsky, Alexander A. Kitaytsev Jan 2000

Advances Of Gyromagnetic Electronics For Emc Problems, Marina Koledintseva, L. K. Mikhailovsky, Alexander A. Kitaytsev

Electrical and Computer Engineering Faculty Research & Creative Works

A number of EMC problems at microwaves-detection and measurement of power (spectrum) of the signals and suppression of unwanted radiation-can be solved owing to the results obtained in the field of gyromagnetic (spin) electronics. The latter deals with the unique properties of gyromagnetic media (GM) based on microwave ferrites, including high-anisotropy hexagonal ferrites that do not need an intense magnetization field for their operation at ferromagnetic resonance. Approaches to the study of the interaction of GM with an electromagnetic field and ways of modeling frequency-selective measuring devices, absorbing coatings and all-mode filters of harmonics on the basis of GM are …

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Analysis Of A Novel Four-Level Dc/Dc Boost Converter, Keith Corzine, Sonal K. Majeethia Jan 2000

Analysis Of A Novel Four-Level Dc/Dc Boost Converter, Keith Corzine, Sonal K. Majeethia

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, novel two-quadrant buck/boost and one-quadrant boost four-level DC/DC power converters are introduced. The primary application for these converters is that of interfacing a low-voltage DC source, such as a fuel cell or battery, to a high-voltage four-level inverter. One important feature of the four-level DC/DC power converters proposed is the ability to perform the power conversion and balance the inverter capacitor voltages simultaneously. With the capacitor voltage balancing, it is possible to obtain the full voltage from the inverter. For the boost converter, the steady-state and nonlinear average-value (NLAM) models are developed. The NLAM is verified against …

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Control Of Statcom With Energy Storage Device, Chen Shen, Zhiping Yang, Stan Atcitty, Mariesa Crow Jan 2000

Control Of Statcom With Energy Storage Device, Chen Shen, Zhiping Yang, Stan Atcitty, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, the control method of a STATCOM with an energy storage device is discussed. To determine the switching level control, UPWM (unique pulse width modulation) and SPWM (sinusoidal pulse width modulation) methods are compared. A linearized model of a STATCOM with a battery is set up to derive monitoring level control strategies. All the control methods are verified by the PSCAD/EMTDC software package.

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Computerised Evaluation Of Cognitive And Motor Function, B. Kisačanin, G. C. Agarwal, J. Taber, D. (Daniel) Hier Jan 2000

Computerised Evaluation Of Cognitive And Motor Function, B. Kisačanin, G. C. Agarwal, J. Taber, D. (Daniel) Hier

Chemistry Faculty Research & Creative Works

In This Paper, We Present a Clinical Study of Computerized Tracking in the Evaluation of Cognitive and Motor Function. We Investigate its Use in the Assessment of Effectiveness of Antiepileptic Drugs (AEDs) as Well as in the Process of Following the Progress of Alzheimer's Disease (AD). to Simplify the Experiments, We Introduce Real-Time Adaptation of the Target Speed. in the Study with Epileptic Patients, Three Result Groups Are Compared: Blood Levels of AEDs, Scores on Standard Neuropsychological Tests, and Scores on Computerized Tracking and Reaction Time Tests. It is Found that the Computerized Tests Are Repeatable, Reliable and Sensitive and …

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Electron Correlations Observed Through Intensity Interferometry, Michael Schulz, Robert Moshammer, Wayne M. Schmitt, Holger Kollmus, Bernold Feuerstein, Rido Mann, Siegbert Hagmann, Joachim Hermann Ullrich Jan 2000

Electron Correlations Observed Through Intensity Interferometry, Michael Schulz, Robert Moshammer, Wayne M. Schmitt, Holger Kollmus, Bernold Feuerstein, Rido Mann, Siegbert Hagmann, Joachim Hermann Ullrich

Physics Faculty Research & Creative Works

Intensity interferometry was applied to study electron correlations in doubly ionizing ion-atom collisions. In this method, the probability to find two electrons emitted in the same double ionization event with a certain momentum difference is compared to the corresponding probability for two uncorrelated electrons from two independent events. The ratio of both probabilities, the so-called correlation function, is found to sensitively reveal electron correlation effects, but it is rather insensitive to the collision dynamics.

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Power Education At The Crossroads, Badrul H. Chowdhury Jan 2000

Power Education At The Crossroads, Badrul H. Chowdhury

Electrical and Computer Engineering Faculty Research & Creative Works

To meet the demands of designing and running far more complex and highly integrated electricity systems, a new kind of power engineer is needed. In this paper, the author describes how, though students tend to favor higher-tech and more lucrative fields than power Engineering; reports of the discipline''s demise are exaggerated

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Takings By Floodwaters, Alan Romero Jan 2000

Takings By Floodwaters, Alan Romero

North Dakota Law Review

No abstract provided.

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Attitudes, Practices And Knowledge Regarding Cervical Cancer Screening Among Greek Women In The Area Of Perth, Panagiota Karnaki Jan 2000

Attitudes, Practices And Knowledge Regarding Cervical Cancer Screening Among Greek Women In The Area Of Perth, Panagiota Karnaki

Theses: Doctorates and Masters

The purpose of this thesis is to study the attitudes, practices and knowledge of Greek women in Perth, Western Australia, regarding cervical cancer screening. This is important because no study has yet examined the cervical screening pattern of this group, despite their low participation rate in screening programs. Qualitative semi-structured interviews among 15 Greek women in Perth were used for data collection. Interviews were conducted both in English and Greek. Eight out of the 15 women interviewed did not participate in frequent screening and many had had only one Pap test in their life. Culture and religion influenced negative attitudes …

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A Qualitative Investigation Into The Use Of The Internet In The Information Search Phase Of The Buying Decision Process, Kiaran Geen Jan 2000

A Qualitative Investigation Into The Use Of The Internet In The Information Search Phase Of The Buying Decision Process, Kiaran Geen

Theses : Honours

There have been a significant number of reports suggesting that the Internet will radically change accepted business and customer relationships. The literature to date has focused on the phenomenon of the Internet as well as more specific aspects such as its interactivity, how to market a Web site and security issues. There appears to be very little research on how consumer behaviour theories relate to the Internet. This study explored the extent to which the Internet is in the information search phase of the buying decision process, amongst Internet literate consumers. A qualitative investigation using virtual focus groups was conducted. …

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The Influence Of Gender-Role On Upper Primary School Students' Graphic Representations, Tamara Frederiks Jan 2000

The Influence Of Gender-Role On Upper Primary School Students' Graphic Representations, Tamara Frederiks

Theses : Honours

The aim of this research was to study the effect of gender-rule on Year Six students' graphic representations completed during a visual transformation task. The influence of gender on learning has become a significant issue in primary schools and research in the area is needed to inform teachers about gender differences. The significance of the issue relates to the equality of opportunity for girls and boys in the classroom. Drawings are of significance because they provide teachers and parents with a glimpse of the developing child in terms of his or her creative and mental growth, feelings, emotions and world-view. …

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A Biblical Theology Of Creation, Richard M. Davidson Jan 2000

A Biblical Theology Of Creation, Richard M. Davidson

Faculty Publications

No abstract provided.

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The ‘Outrageous, Delmer Davis Jan 2000

The ‘Outrageous, Delmer Davis

Faculty Publications

No abstract provided.

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2000 Faculty Senate Meeting Summaries, Morehead State University. Faculty Senate. Jan 2000

2000 Faculty Senate Meeting Summaries, Morehead State University. Faculty Senate.

Faculty Senate Records

Faculty Senate meeting summaries for 2000.

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Problems Of Historical Inevitbility In Four American Novels, John Brinckwirth Jan 2000

Problems Of Historical Inevitbility In Four American Novels, John Brinckwirth

Master's Theses

No abstract provided.

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Effectiveness Of The Infusion Of Reading Component Model Based Remedial Reading Instruction On The Reading Achievement Of Students In Learning Disabilities And Title I Remedial Reading Programs, Sonja O'Lita Frantz Jan 2000

Effectiveness Of The Infusion Of Reading Component Model Based Remedial Reading Instruction On The Reading Achievement Of Students In Learning Disabilities And Title I Remedial Reading Programs, Sonja O'Lita Frantz

All-Inclusive List of Electronic Theses and Dissertations

The present study tested the effectiveness of the infusion of remedial reading instruction, derived from the Reading Component Model, on the reading achievement of children in learning disabilities and Title I classrooms. The Reading Component Model is based on the premise that the reading process is composed of two major components, word recognition and comprehension, and poor functioning of either component can affect reading performance. Remedial instruction based on the component model focuses and tailors instruction on the weak component. In contrast, the discrepancy model, a model that is predominant in U.S. schools, classifies students into two categories: those with …

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The Perceptions Of Highereducation Administrators As They Relate To Student Retention Issues, Julia Bickel Jan 2000

The Perceptions Of Highereducation Administrators As They Relate To Student Retention Issues, Julia Bickel

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this study was to determine the perceptions of the chief academic officer and the chief student affairs officers at public and private Indiana baccalaureate institutions, and to determine what programs, practices, and policies those four officers groups perceive as important, which ones are available at the officers' institutions, and then how effective the officers perceived them to be. A survey instrument was developed to determine those perceptions within response modes for important,” available,” and effective” as they affected eight topics related to retention. Those topics were (1) Mission and Policy, (2) Budgeting and Funding, (3) Institutional Awareness, …

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A Comparative Study Of Indiana Superintendent's Perceptions Of Principal Evaluation Instruments, Ginger Lee Studebaker Jan 2000

A Comparative Study Of Indiana Superintendent's Perceptions Of Principal Evaluation Instruments, Ginger Lee Studebaker

All-Inclusive List of Electronic Theses and Dissertations

The purposes of this study were (1) to determine the difference between formative or summative principal evaluation instruments used by large and small school districts in the state of Indiana, (2) to determine which outcomes are used to for principal evaluations, (3) to compare school districts' use of administrative evaluation instruments based on the skills necessary for effective leaders, and (4) to compare the perceptions of superintendents regarding their principal evaluation instruments. Surveys were sent to 69 Indiana public school superintendents. Thirty-one school districts had a student enrollment over 7000, and thirty-eight districts had a student enrollment of less than …

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Sources Of Information For Commercial Farms: Usefulness Of Media And Personal Sources, Brent A. Gloy, Jay Akridge, Linda D. Whipker Jan 2000

Sources Of Information For Commercial Farms: Usefulness Of Media And Personal Sources, Brent A. Gloy, Jay Akridge, Linda D. Whipker

Department of Agricultural Economics Faculty Publications

The usefulness of several information sources is examined for U.S. farms with sales in excess of $100,000. The results indicate that crop/livestock-specific magazines and general farm magazines are the most useful information sources. Analyses indicate that the types and number of different commodities that the farm produced, as well as Internet use, are the most consistent predictors of attitudes toward various information sources. However, characteristics that explain attitudes toward different information sources vary substantially across the information sources considered.

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Evaluating A Change To Seminar-Style Teaching, Kirsten Anker, Catherine Dauvergne, Mark Findlay, Jenni Millbank Jan 2000

Evaluating A Change To Seminar-Style Teaching, Kirsten Anker, Catherine Dauvergne, Mark Findlay, Jenni Millbank

Research Collection Yong Pung How School Of Law

While the use of small to medium-sized seminar-style groups has long been a feature of some Australian law faculties, such as the University of New South Wales, it is a recent innovation in others, including the University of Western Australia and the University of Adelaide. In March 1996 the Faculty of Law at the University of Sydney made a decision to move from a traditional lecture and tutorial structure to seminar-style classes of limited size. This article discusses the reasons for the move away from a traditional lecture/ tutorial format to an interactive seminar-style model of teaching. The paper explains …

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Resource Allocation And Efficiency In Public Sector Audits, Kar M. Chong Jan 2000

Resource Allocation And Efficiency In Public Sector Audits, Kar M. Chong

Theses: Doctorates and Masters

In recent years, the push for reform in the Australian public sector audit has placed the Office of the Auditor-General (hereafter OAG) in a more contestable or market- like environment, where the OAG is accountable for an efficient and effective provision of public sector audit. The purpose of this study is to compare the cost efficiency of in-house and contract-out arrangements to deliver financial audits in the public sector. It empirically tests whether there are audit cost and audit fee differences between in-house providers (i.e., the OAG) and contractors (i.e., public accounting firms). The secondary aims of this study are …

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Prisoners' Use Of Social Support, Gaynor S. Hobbs Jan 2000

Prisoners' Use Of Social Support, Gaynor S. Hobbs

Theses: Doctorates and Masters

Manuscript 1: It is generally acknowledged that prison is often a stressful environment, yet little is known of the coping processes employed by prisoners. This paper aims to examine the question of what facilitates and frustrates prisoners' use of social support whilst imprisoned. This question is examined with regards to both informal (family and friends, other prisoners) and 'formal sources of support (professional support services, peer support prisoners, prison officers). The conclusion that was drawn from this review of the literature is that the role of social support in correctional environments is largely unknown and current thinking is based primarily …

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