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Faculty Senate Monthly Packet April 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The April 1991 Monthly packet includes the April agenda and appendices and the Faculty Senate minutes and attachments from the meeting held March 1991.

Meeting Notes 1991-03-14 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Faculty Senate Monthly Packet February 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

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

Concurrency Control, Version Management And Transactions In Advanced Database Systems, Jonathan Walpole, Muntuck Yap

Computer Science Faculty Publications and Presentations

This document constitutes the final deliverable for the research project titled “An Investigation of Selected Issues in Transaction Mechanism Design for Object Oriented Databases.” The document describes our ideas for extending the traditional transaction concept for use in object oriented databases, and concentrates specifically on providing an underlying model to support the concurrency control and version management aspects of the problem. The ideas presented here are not however restricted to the domain of object oriented databases. They are more generally applicable to database systems that require flexibility in their versioning and concurrency control policies.

In this document we define a …

Meeting Notes 1991-01-17 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Annual Faculty Senate Minutes October 1991 - June 1992, Portland State University Faculty Senate

Annual Compilations of the Faculty Senate Minutes (Minutes Only)

Minutes of the Faculty Senate for October 1991 to June 1992.

Faculty Senate Proceedings 1991-1992, Portland State University Faculty Senate

Faculty Senate Monthly Packets

Faculty Senate Proceedings from meetings held 1991-1992. This item contains Ex-officio Members, Chronological Index of Senate Minutes, Reports and Documents and a subject index for the Faculty Senate meetings between 1991-1992.

A New Design Approach For Numeric-To-Symbolic Conversion Using Neural Networks, Zibin Tang

Dissertations and Theses

A new approach is proposed which uses a combination of a Backprop paradigm neural network along with some perceptron processing elements performing logic operations to construct a numeric-to-symbolic converter. The design approach proposed herein is capable of implementing a decision region defined by a multi-dimensional, non-linear boundary surface. By defining a "two-valued" subspace of the boundary surface, a Backprop paradigm neural network is used to model the boundary surf ace. An input vector is tested by the neural network boundary model (along with perceptron logic gates) to determine whether the incoming vector point is within the decision region or not. …

Late Holocene Paleoseismicity Along The Northern Oregon Coast, Mark Edward Darienzo

Dissertations and Theses

Marsh paleoseismological studies were conducted in four bays (Necanicum, Nestucca, Siletz, and Yaquina) along the northern Oregon coast and compared with completed studies in two other bays (Netarts and Alsea). Coseismically buried peats were identified in all bays, based on 1) abrupt contacts, decreases in organic content, increases in sand content, increases in beach sand, and changes in diatom assemblages, all from the peat to the overlying sediments, 2) distinct sandy layers and key plant macrofossils, such as Triglochin, above the buried peat, and 3) widespread correlation of the buried peats within the bay. The stratigraphy and the ages and …

Spectral Methods For Boolean And Multiple-Valued Input Logic Functions, Bogdan Jaroslaw Falkowski

Dissertations and Theses

Spectral techniques in digital logic design have been known for more than thirty years. They have been used for Boolean function classification, disjoint decomposition, parallel and serial linear decomposition, spectral translation synthesis (extraction of linear pre- and post-filters), multiplexer synthesis, prime implicant extraction by spectral summation, threshold logic synthesis, estimation of logic complexity, testing, and state assignment. This dissertation resolves many important issues concerning the efficient application of spectral methods used in the computer-aided design of digital circuits. The main obstacles in these applications were, up to now, memory requirements for computer systems and lack of the possibility of calculating …

Development And Analysis Of A Model For Change In The Workplace, Using Quasi-Experimentation With Computer Professionals In Northwestern Investor Owned Utilities, John Ronald Thompson

Dissertations and Theses

Computer professionals have been agents of change in many organizations. In some cases the role inadvertently became theirs as they were the ones at the vanguard of implementing the new information processing technology in organizations. While in other cases they were the catalysts for change, to force new methods/procedures onto lethargic organizations. While introducing change on others in the organization and adapting to new technological changes themselves, the computer professionals have not really had to face a significant change in their status, power, or importance to the organization. The introduction of the personal computer has brought about significant change in …

Freeway Control Via Ramp Metering: Development Of A Basic Building Block For An On-Ramp, Discrete, Stochastic, Mesoscopic, Simulation Model Within A Contextual Systems Approach, Mohamed Yaser Alkadri

Dissertations and Theses

One of the most effective measures of congestion control on freeways has been ramp metering, where vehicle entry to the freeway is regulated by traffic signals (meters). Meters are run with calibrated influx rates to prevent highway saturation. However, recent observations of some metering sites in San Diego, CA indicate that metering, during peak hour demand, is helping freeway flow while sometimes creating considerable traffic back-ups on local streets, transferring congestion problems from the freeway to intersections. Metering problems stem largely from the difficulty of designing an integrated, dynamic metering scheme that responds not only to changing freeway conditions but …

Microscopic Irreversibility And Gibbs Entropy, John D. Ramshaw

Physics Faculty Publications and Presentations

In a recent paper of the same title [J. Non-Equilib. Thermodyn., 15 (1990), 151], Liboff observed that the fine-grained Gibbs entropy of a canonical Hamiltonian system remains constant in time even for Hamiltonians that are not even in momenta and consequently violate time-reversal invariance (TRI). Here we extend this observation to non-canonical Hamiltonian systems, including systems with singular Poisson tensors and pseudo-Hamiltonian systems that violate the Jacobi identity. Necessary and sufficient conditions are given for the Gibbs entropy to be constant in such systems. The concept of TRI is not in general meaningful for such systems, but it is shown …

International Cities In The Dual Systems Model: The Transformation Of Los Angeles And Washington, Carl Abbott

Urban Studies and Planning Faculty Publications and Presentations

Though both Los Angeles and Washington, D.C., have grown into world cities since the 1940's, there are differences between them that are explained better by the two model system approach than by other approaches. Washington is distinctly and deliberately isolated from its immediate surroundings and is the center of an international information network. Los Angeles is the production and distribution center of an international region - Mexico and the United States. A valuable measure of the difference is the high proportion of professional workers in Washington, in contrast to the employment structure in Los Angeles, which closely reflects the national …

Evidence And Interpretation In The Archaeology Of Jamaica, E. Kofi Agorsah

Black Studies Faculty Publications and Presentations

One of the most challenging statements in the Archaeology of the New World is the one made by James Deetz, an eminent Archaeologist, that: "The personalities of prehistory will remain forever nameless and without faces", (Deetz 1977). Any one with background training in prehistoric Archaeology of the Old ~rid would at first glance at the statement view it with scorn. I was no exception to this reaction. But when I started updating myself on archaeological studies in the Caribbean I started giving the statement a serious thought especially having come across Clinton Black's description of the first Jamaicans as "a …

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: Families of children with serious emotional disorders are finding help from a Research and Training Center at PSU; the inauguration of PSU President Judith A. Ramaley was a heralded event for the university community; the Governor’s Commission on Higher Education places PSU at the hub of a cooperative educational effort in Portland; soldiers, exposed to low-level radiation while stationed at Camp Hanford, are the subject of a new study through PSU; while the number of women competing in athletics continue to sour, women coaches are becoming a rare sight; …

Faculty Senate Monthly Packet January 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The January 1991 Monthly packet includes the January agenda and appendices and the Faculty Senate minutes and attachments from the meeting held December 1990.

Viking 1991, Portland State University

The Viking (Yearbooks)

Portland State University 1991 yearbook

A Mathematical Model For Outgassing And Contamination, W. Fang, M. Shillor, E. Stahel, E. Epstein, C. Ly, J. Mcniel, Edward D. Zaron

Civil and Environmental Engineering Faculty Publications and Presentations

A model for the mathematical description of the processes of outgassing and contamination in a vacuum system is proposed. The underlying assumptions are diffusion in the source, convection and diffusion in the cavity, mass transfer across the source-cavity interface, and a generalization of the Langmuir isotherm for the sorption kinetics on the target. Three approximations are considered where the asymptotic behavior of the model for large time is shown as well as the dependence and sensitivity of the model on some of the parameters. Some numerical examples of the full model are then presented together with a proof of the …

The Relocation Of North Bonneville, Washington, By The U.S. Army Corps Of Engineers: A Policy Implementation Study, Cecil Eugene Reinke

Dissertations and Theses

This is a policy implementation case study. The case is the relocation of the Town of North Bonneville, Washington, by the U.S. Army Corps of engineers. Three questions are addressed in this study. One, did the U.S. Army Corps of Engineers, in relocating the Town, accomplish what was intended to be accomplished? Two, how and why were Federal policies applicable to the relocation of this town changed during the implementation process? Three, what can the North Bonneville experience contribute to existent knowledge, understanding, and appreciation of policy implementation? The principal precepts for policy implementation promoted by this study of the …

Parplum : A System For Evaluating Parallel Program Optimization Methods, Jingsong Fu

Dissertations and Theses

The diversity of application programs and parallel architectures makes the mapping problem complicated and hard to evaluate. The quality of mapping is machine and application dependent and varies due to inaccurate values of application and architecture characteristics.

A system for developing, applying and evaluating mappings must have four characteristics: (1) Simplicity: A mapping procedure can be evaluated by separately evaluating its submapping, so the complicated problem can be simplified. (2) Generality: A wide range of application programs and architectures can be easily represented and all mapping algorithms can be easily implemented. (3) Multifunctionality: all the mapping steps, application programs, target …

A Practical Parallel Algorithm For The Minimization Of KröNecker Reed-Muller Expansions, Paul John Gilliam

Dissertations and Theses

A number of recent developments has increased the desirability of using exclusive OR (XOR) gates in the synthesis of switching functions. This has, in turn, led naturally to an increased interest in algorithms for the minimization of Exclusive-Or Sum of Products (ESOP) forms. Although this is an active area of research, it is not nearly as developed as the traditional Sum of Products forms. Computer programs to find minimum ESOPs are not readily available and those that do exist are impractical to use as investigative tools because they are too slow and/or require too much memory. A practical tool would …

Neural Network Character Recognition With A 2-D Fourier Transform Preprocessor, Daqiao Du

Dissertations and Theses

In pattern recognition applications, it is usually important that the same identification be given for a pattern, independent of a variety of positions, rotations and /or distortions of the pattern within the recognition device's field of view. This research relates to development of a preprocessor for a neural network character recognition system, where the role of the preprocessor is to assist in minimizing the difficulties related to variations of position and rotations of a character within the field of view. The preprocessor explored here was suggested in 1970' (Lendaris & Stanly, 1970), and is implemented here with more recent advances …

Analysis Of A Coordination Framework For Mapping Coarse-Grain Applications To Distributed Systems, Linda Ruth Schaefer

Dissertations and Theses

A paradigm is presented for the parallelization of coarse-grain engineering and scientific applications. The coordination framework provides structure and an organizational strategy for a parallel solution in a distributed environment. Three categories of primitives which define the coordination framework are presented: structural, transformational. and operational. The prototype of the paradigm presented in this thesis is the first step towards a programming development tool. This tool will allow non-specialist programmers to parallelize existing sequential solutions through the distribution, synchronization and collection of tasks. The distributed control, multidimensional pipeline characteristics of the paradigm provide advantages which include load balancing through the use …

Meeting Notes 1990-12-13 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Impact Of The Six Percent Tax Base Limitation On Local Government Financing Of Infrastructure Needs Of Urban Growth, Portland State University. Center For Urban Studies, Regional Financial Advisors, Inc., Oregon. Department Of Land Conservation And Development

Portland Regional Planning History

Impact of the six percent tax base limitation on local government financing of infrastructure needs of urban growth.

Faculty Senate Monthly Packet December 1990, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The December 1990 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 1990.

Oscillation Frequency In High-Gain Lasers, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

The calculation of the oscillation frequency of a single-mode laser oscillator is examined systematically. Mode-pulling formulas are developed for a variety of laser systems, and the limitations of a standard approximation are explored.

Meeting Notes 1990-11-08 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Decomposition Of Measured Contours Into Geometric Features For Dimensional Inspection, Devaraj Rajkumar

Dissertations and Theses

Image processing systems used in Vision Assisted Dimensional Inspection usually output a set of boundary pixels representing the part edges. This boundary information must be divided into several subsets representing the various edges of the actual object, so that comparisons with the nominal part can be made.

The purpose of this project is to devise a method to divide the set of pixels obtained from the image processing system into subsets of pixels. Each of these subsets represent an edge in the contour of the actual object. This method must also detect transition points between the adjacent features. This project …