Digital Commons Network^™

Effectiveness Of Additive Correction Multigrid In Numerical Heat Transfer Analysis When Implemented On An Intel Ipsc2, James D. Padgett

Dissertations and Theses

The effectiveness of the Additive Correction Multigrid (ACM) algorithm, a line-byline Tri-diagonal Matrix Algorithm (TDMA), and simple Gauss-Seidel (GS) iteration in numerical heat transfer analysis is investigated on a conventional single processor computer and on a distributed memory parallel computer. The performance of these methods is studied by solving a two-dimensional, steady heat conduction problem. The execution time of ACM on a single processor is proportional to the number of unknowns to the 1.5 power. This is in contrast to the execution time of the TDMA for which the execution time is proportional to the number of unknowns to the …

A Comparison Of Two Kindergarten Screening Instruments In One Population, Therese Marie Westrup

Dissertations and Theses

The purpose of this study was to compare thirty-two childrens' performances on the Daberon-2 Screening for School Readiness and the Early Screening Inventory, as well as determine whether there was a correlation between the tests. This study responded to the needs of the local Portland, Oregon area schools, some of which use these tests, to investigate the tests, and explore the possibility of using the shorter ESI over the longer Daberon. The reasoning behind the goal of the study was to determine that if the two tests showed a strong, positive correlation and identified the same children as needing further …

Brainstem Auditory Evoked Potentials In Anuran Amphibians, Marc Brandon Carey

Dissertations and Theses

In this study, I looked at the effects of sound level, temperature and dehydration/hypernatremia on the brainstem auditory evoked potential (BAEP) of four species of anuran amphibians (Rana pipiens, Rana catesbeiana, Bufo americanus and Bufo terrestris). The BAEP was used because it allowed me to monitor both the peripheral and central aspects of auditory nervous function simultaneously and over a long period of time.

Faculty Senate Monthly Packet May 1992, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 1992 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 1992.

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: Retirement for many senior adults means more time for travel, leisure—and study; Professor Jon Mandaville was an international news source as archaeologists in Oman uncovered the fabled city of Ubar; in the face of budget cuts, will state and local services—the nail and shoes—support long-term planning goals for Oregon—the horse and rider?; growing up in Ethiopia has given alumna Jan Kurtz a unique perspective as director of the American Advertising Museum; and more.

Identifying Quality Function Deployment's Variables, Outcomes, Their Relationships, And Guidelines For Practitioners In The American Automotive Industry, Geoffrey Paul Gilmore

Dissertations and Theses

American industry is about nine to 12 years behind in utilizing a new product development and introduction process known as Quality Function Deployment (Q.F.D.). American industry must learn to compete internationally; the American automotive industry alone directly and indirectly employs millions of workers and has billions of dollars in annual sales and profits at stake.

With the cooperation of one American automotive company research has been conducted on Q.F.D. The research objectives were to identify: what variables affect Q.F.D., what are the outcomes from Q.F.D., what relationships exist between Q.F.D. variables and outcomes, and what guidelines may be offered to …

Faculty Senate Monthly Packet April 1992, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The April 1992 Monthly packet includes the April agenda and appendices and the Faculty Senate minutes and attachments from the meeting held March 1992.

Working It Out: Esl Literacy Skills, Strategies, And Systems In The Workplace, Mary Louise Cohn

Dissertations and Theses

This study investigates the strategies and resources a group of non-native English speakers with limited reading ability use to fulfill literacy functions work. The nineteen study subjects are employed as production workers in a large electronics manufacturing company. Using in-depth interview data, limited testing and document analysis, the study addresses three major research questions: 1) For what functions are reading and writing actually used in the workplace? What level of reading and writing do these functions assume? 2) How do these literacy functions relate to the rest of the work system? 3) How do limited readers fulfill these literacy functions? …

Mapping Programs To Parallel Architectures In The Real World, Dezheng Tang

Dissertations and Theses

Mapping an application program to a parallel architecture can be described as a multidimensional optimization problem. To simplify the problem, we divide the overall mapping process into three sequential substeps: partitioning, allocating, and scheduling, with each step using a few details of the program and architecture description. Due to the difficulty in accurately describing the program and architecture and the fact that each substep uses incomplete information, inaccuracy is pervasive in the real-world mapping process. We hypothesize that the inaccuracy and the use of suboptimal, heuristic mapping methods may greatly affect the mapping or submapping performance and lead to a …

Three Dimensional Mammalian Skull Morphology, Suzanne Louise Krippaehne

Dissertations and Theses

This thesis deals with archiving morphological data utilizing a three dimensional coordinate system. Morphological reference points are archived via rectangular position coordinates, rectangular position vectors, and spherical position vectors. The concepts of translation trajectories, translation vectors, and relative position vectors are developed. Analysis of three dimensional coordinate data utilizing translation trajectories and translation vectors is described. In order to test the methodology developed, the method is applied to an analysis of harbor porpoise, Phocoena phocoena L., skull morphology. (Key words: morphology, ontogenetic trajectories, allometry, position coordinates, position vectors, translation trajectories, translation vectors, relative position vectors, and harbor porpoise).

Geographic Data In City Planning Departments: The Volume And Use Related To Advancements In Geographic Information Systems (Gis) Technology, Fawzi Saeed Kubbara

Dissertations and Theses

Many local planning departments have acquired and put into use advanced automated geocoding and Geographic Information Systems (GIS) to store, process, map and analyze geographic data. GIS technological advancements in hardware, software, and geographic databases - specifically, in geocoding methods to reference street address data to geographic locations - enable data to be integrated, mapped, and analyzed more efficiently and effectively. Also, technological advancements depend on organizational and institutional environments. The relationships between technological advancements and technical (data mapping and analysis), organizational, and institutional environments are not clear. The purpose of this study is to explain these relationships to help …

Narrative Painting, Gina Strecker Wilson

Dissertations and Theses

The thesis is in the form of a commentary on the development of meaning and content within work done for the Department of Art Graduate Program.

Foreign Student Enrollment Planning In Five Oregon Institutions With English As A Second Language Programs, Maureen Denise Sprague

Dissertations and Theses

Planning for foreign students in institutions of higher education takes many forms. This study set out to find out how this planning takes place within and between three particular units in five universities and colleges in Oregon. The three units chosen as the focus of this study work closely with foreign students in the initial admissions process, in the orientation, visa status and services area of their stay, and thirdly in academic coursework in English as a second language programs. The titles of the units are, the admissions office, the international student services office and the English as a second …

Effects Of Parents' Health Attitudes And Beliefs On Children's Preventive Care Utilization, Weiming Hu

Dissertations and Theses

This thesis was designed to test the relationship between parents' health attitudes and beliefs and utilization of preventive health services of their children. Four measures of health attitudes and beliefs (HAB) were examined in this study, they were: 1) Interest in and concern with health; 2) Skepticism about physicians; 3) Tendency to consult physicians; and 4) Efficacy. Preventive care utilization included well-child care and immunization.

Defusing A Rhetorical Situation Through Apologia: Ronald Reagan And The Iran-Contra Affair, Roxane Yvonne Sutherland

Dissertations and Theses

This thesis examines the manner in which Ronald Reagan responded to the Tower Commission Report concerning his involvement in the Iran-Contra Affair. It explores the following questions: 1) What were the factors leading to a rhetorical situation as defined by the media and which required Ronald Reagan to provide a public response of self-defense; 2) what strategies of apologia did Reagan employ; and 3) how did the media and the White House characterize the outcome of Reagan's speech?

Data for analysis were drawn from nationally recognized newspapers that shaped public perception of the Iran-Contra Affair: The Washington Post, The …

Improved I/O Pad Positions Assignment Algorithm For Sea-Of-Gates Placement, Shyang-Kuen Her

Dissertations and Theses

A new heuristic method to improve the I/O pad assignment for the sea-of-gates placement algorithm "PROUD" is proposed. In PROUD, the preplaced I/O pads are used as the boundary conditions in solving sparse linear equations to obtain the optimal module placement. Due to the total wire length determined by the module positions is the strong function of the preplaced I/O pad positions, the optimization of the I/O pad circular order and their assignment to the physical locations on the chip are attempted in the thesis. The proposed I/O pad assignment program is used as a predecessor of PROUD. The results …

Hypoid Gear Optimization, Selvaraj Ramachandran

Dissertations and Theses

A hypoid gear optimization procedure using the method of feasible directions has been developed. The objective is to reduce the gear set weight with bending strength, contact strength and facewidth-diametral pitch ratio as constraints. The objective function weight, is calculated from the geometric approximation of the volume of the gear and pinion. The design variables selected are number of gear teeth, diametral pitch, and facewidth. The input parameters for starting the initial design phase are power to be transmitted, speed, gear ratio, type of application, mounting condition, type of loading, and the material to be used. In the initial design …

An Intelligent Database For Psubot, An Autonomous Wheelchair, Dieudonne Mayi

Dissertations and Theses

In the design of autonomous mobile robots, databases have been used mainly to store information on the environment in which the device is to operate. For most of the models and ready systems, the database when used, is not a stand alone component in the system, rather it is only intended to keep static information on the disposition and properties of objects on the map.

In this thesis is implemented an intelligent database. It combines static facts to build more information. An intelligent database such as this one will be a plus for an intended autonomous machine such as the …

International Education In The Public Community Colleges Of Oregon And Washington, Stephan Ernest Cragg

Dissertations and Theses

There were at least five purposes in pursuing research on international education in the public community colleges of Oregon and Washington states. The first purpose was to fully demonstrate a new and original taxonomy of ten elements, or dimensions, found in defining and describing international education. A second purpose was to add to the body of knowledge and research on international education practices at the nation's community colleges through an extensive literature search and original research. A third purpose of the study was to identify and describe the current status of international educational programs and activities of the forty-three public …

Intercultural Confrontation Styles Of Culturally Homophilous And Culturally Heterophilous Japanese And U.S. College Students, Toyoko Hattori

Dissertations and Theses

This study focuses on confrontational behavior patterns exhibited by Japanese and U.S. college students in the Portland Metropolitan area. Four questions are addressed: 1) is there a difference Japanese and U.S. confrontation styles? 2) do Japanese use differing confrontation styles depending upon whom they are interacting with? 3) do U.S. individuals use differing confrontation styles depending upon whom they are interacting with? and 4) is there a significant gender difference between Japanese and U.S. confrontation styles? In addition, correlations between the Japanese and U.S. reported confrontation styles and their demographic data are examined.

Developing Image Processing Tools In X Window System, Xin Zhang

Dissertations and Theses

The X Window System is an industry-standard software system which facilitates programmers to develop portable graphical user interfaces. This thesis describes an image processing tool developed under the X Window System. A multiwindow image display software with image editing and improvement functions is developed. The software has four modules: environment generation, image creation, image editing and image improvement.

The environment generation module creates working windows, scrollbars, dialogbox and pulldown menu buttons, and tracks mouse cursor positions. The working windows are three adjacent windows allowing display of three different images simultaneously. The dialogbox provides an interface between the user and the …

Moving Pictures, Melissa Ann Mcclure

Dissertations and Theses

My thesis work includes 10 large drawings that explore the narrative qualities of line movement. I use line in these drawings as a recording device to document both the physical activity of the process and the personal experience that the lines represent. Through this work I attempt to develop a language of visual imagery that is autobiographical in nature. A system of personal symbols and recurring forms make up the structure of this visual vocabulary. Line movement and rhythm provides a sense of the dialog.

Faculty Senate Monthly Packet January 1992, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The January 1992 Monthly packet includes the January agenda and appendices and the Faculty Senate minutes and attachments from the meeting held December 1991.

Residential Mobility And Revitalization In Portland Between 1970 And 1980: A Study Of The Urban Structural Impacts On Neighborhood Revitalization, Sheka Gassimou Kamara

Dissertations and Theses

Evidence of physical decline due in part to the rapid encroachment of commercial and industrial activity into some of Portland's residential areas in the mid-1960s and efforts to combat the forces of time and change through neighborhood revitalization provide the basis for this study. Additionally, some of the characteristics often employed in explaining the phenomenon in cities are manifested in the city of Portland. For example, Portland is endowed with a distinctive and well established downtown area that provides opportunities for the establishment of businesses as well as white-collar job opportunities. By the standards of the U.S. Bureau of the …

Annual Faculty Senate Minutes October 1992 - June 1993, Portland State University Faculty Senate

Annual Compilations of the Faculty Senate Minutes (Minutes Only)

Minutes of the Faculty Senate for October 1992 to June 1993.

Proteolytic Modification Of The Ca²-Release Mechanism Of Sarcoplasmic Reticulum In Skeletal Muscle, Ute Goerke

Dissertations and Theses

Calcium ions are important mediators in the mechanism of contraction and relaxation of muscle fibers. Depolarization of sarcolemma and transverse tubule causes an increase of myoplasmic ca2+ concentration which induces contraction of the myofibrils. In skeletal muscle fibers, the intracellular Ca²⁺ concentraton is regulated by an extensive membrane system, the sarcoplasmic reticulum (SR). Ca²⁺-release from SR is initiated by depolarization of the transverse tubule via a process referred to as excitation-contraction coupling. The Ca²⁺ - release channel located in the junctional SR plays an important role in this mechanism.

A Partitioning-Based Approach To The Fitting Problem In Special Architecture Eplds, Steffan Goller

Dissertations and Theses

In this thesis, we describe an architecture-driven fitting algorithm for an Application-Specific EPLD, the CY7C361, from Cypress Semiconductor. Traditional placement and routing tools for PLDs perform placement and routing separately. Several placement possibilities are created and the router tries to realize the connections between the physical locations of the cells on the chip. The Cypress CY7C361 has a very unique chip architecture with a highly limited connectivity between the physical cells. Therefore, it is necessary to consider the mutability when the placement of cells is performed. The combination of the two stages is called fitting. The specific architecture-dependent constraints, imposed …

Race, Aggravated Murder, And The Death Sentence In Multnomah County, Oregon, 1984-1990 : A Descriptive Analysis And Review, Patrick Arthur Jolley

Dissertations and Theses

Criminal justice administrators in the United States have been challenged by a highly visible accusation of racial discrimination. This perception has weakened the confidence in, and support of, our judicial process. This study attempted to clarify this perception by examining the effect of race on certain judicial decisions related to the death penalty. The variables chosen for analysis focused on the persons involved in the homicide, the circumstances of the crime, and decisions made during the processing of capital cases.

A New Method For Calculating The Economic Benefits Of Varying Degrees Of Power Factor Correction For Industrial Plant Loads, Mohammed Ishaque

Dissertations and Theses

A comparative study of the economic benefits that can be obtained from different degrees of power factor correction for medium and small scale industrial installations is shown. A new approach for precise calculation of kws and kvars required at different power factors is presented. These calculated values are used to find the return on investments for the capacitors needed for power factor correction. The developed method is easy to use, cost effective, accurate and will help electrical engineers with minimum knowledge of power systems to precisely determine the savings available by improving the power factor of an industrial load.

Monitoring And Management Of Psychiatric Symptomatology In Conditionally Released Insanity Acquittees, Jo Mariah Mahler

Dissertations and Theses

Community treatment of insanity acquittees is a highly controversial matter among legislators, mental health professionals and the public. At issue is the balancing of public safety concerns with least restrictive, non-punitive rehabilitation alternatives for insanity acquittees. Attempts to determine predictors of dangerousness in mentally ill offenders have produced mixed results with questionable practical value. In view of this, many mental health professionals are instead recommending that research on insanity acquittees be focused on evaluating the effectiveness of mandated community treatment programs for insanity acquittees. One area being designated for such research is the monitoring and management of psychopathology in conditionally …