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Performance Theorems For The Resource Scheduling Functions Of A Multiprocessing System, George Arthur Nicol

Dissertations and Theses

In this dissertation, a multiprocess scheduling model is developed and a set of performance theorems is constructed for the set of scheduling functions associated with the model. Each theorem describes the conditions under which a scheduling function exhibits a particular type of performance.

Thought, Word And Deed In The Mid-Tudor Commonwealth : Sir Thomas Smith And Sir William Cecil In The Reign Of Edward Vi, Ann B. Clark

Dissertations and Theses

This thesis examines the general economic and intellectual climate of the mid-Tudor Commonwealth as a background for a specific study of the financial reforms instituted by Edward VI's government while the Duke of Northumberland controlled the Privy Council. The philosophy behind these measures parallels the principles expressed in A Discourse of the Commonweal of this Realm of England, a treatise written in 1549 by Sir Thomas Smith, Secretary to King Edward. In 1551-1552 the implementation of financial reform fell to Sir William Cecil, also King's Secretary and Northumberland's key administrator on the Council. In establishing the link between Smith's ideas …

Performance Theorems For The Resource Scheduling Functions Of A Multiprocessing System, George Arthur Nicol

Dissertations and Theses

In this dissertation, a multiprocess scheduling model is developed and a set of performance theorems is constructed for the set of scheduling functions associated with the model. Each theorem describes the conditions under which a scheduling function exhibits a particular type of performance.

Faculty Senate Monthly Packet December 1978, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The December 1978 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 1978.

Faculty Senate Monthly Packet November 1978, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 1978 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 1978.

Requisite Variety And The Second Law, Martin Zwick

Complex Systems Faculty Publications and Presentations

Although the Law of Requisite Variety (LRV) speaks directly about entropy (of a set of disturbances to a system, and of the states and effects of a regulator), the relation of Ashby's principle to the Second Law of Thermodynamics does not appear to have been commented on, In this paper, it is shown that, when regulation is viewed as a temporal process, the LRV can be interpreted as a statement of, and, in fact, a consequence of, the Second Law. In essence, the regulator reduces the variety (entropy) of the system being regulated by a compensatory increase of variety (entropy) …

Fuzziness And Catastrophe, Martin Zwick, Daniel Guy Schwartz, George G. Lendaris

Complex Systems Faculty Publications and Presentations

In a recent short note, Flondor has alluded to a possible linkage of fuzzy set theory and catastrophe theory. We consider several features of catastrophe theory, namely the properties of discontinuous jumps, hysteresis, and divergence in the "cusp catastrophe," and the role of the bias factor in the "butterfly catastrophe," which have affinities to and suggest possible extensions of fuzzy set ideas. Certain functions extensively considered in catastrophe theory lend themselves in some cases to interpretation as membership functions. The use of such functions may be of interest for the characterization of linguistic descriptions which are time-varying and encompass both …

"Is Human Understanding Finite?", Peter Brian Medawar

Special Collections: Oregon Public Speakers

No abstract provided.

An Assessment Of The Transmission Electron Microscope For The Study Of Aerosol-Gas Interactions: Direct Observations Of Sodium Chloride Hydration Phenomena, Antony David Clarke

Dissertations and Theses

An experimental study of solid-gas interactions was made for sodium chloride particles, using a specially fabricated environmental chamber in a transmission electron microscope. It was found that under suitable conditions the hydration and dehydration of these particles could be directly observed and quantitatively measured. Measurements of growth were obtained with a time resolution of one-thirtieth of a second for particles having diameters ranging from 0.02 μm to 1.0 μm.

"Rates Of Change (Lecture 1)", John Rader Platt

Special Collections: Oregon Public Speakers

No abstract provided.

"Needed Social Innovations (Lecture 2)", John Rader Platt

Special Collections: Oregon Public Speakers

No abstract provided.

"Participation And Alienation In Large Democracies", Michael A. Arbib

Special Collections: Oregon Public Speakers

With Cooper, W., Ecosystems.

"Environmental Simulation And Long-Term Planning", Michael A. Arbib

Special Collections: Oregon Public Speakers

With Cooper, W. Ecosystems.

"Toxic Chemicals In The Environment", William E. Cooper

Special Collections: Oregon Public Speakers

Presented and recorded with Arbib, M. A., "Environmental Simulation and Long-Term Planning."

"Ecosystems", William E. Cooper

Special Collections: Oregon Public Speakers

From a lecture series with M.A. Arbib, "Environmental simulation and long-term planning."

"Space Settlements", John Billingham

Special Collections: Oregon Public Speakers

No abstract provided.

1978 Commencement Program, Commencement

Commencement Archives 1970-79

The program for the Portland State University Spring commencement ceremony held June 11, 1978, at 3:00 p.m. at Memorial Coliseum, Portland, Oregon.

An Investigation Of Arsenic(V)-Catechol Complexes, Ronald P. Haak

Dissertations and Theses

There is not, at this time, a simple method for the simultaneous determination of As (III) and As (V) at trace levels. The development of such as method is needed, as the toxicities of these two species differ so greatly.

As (III) and As (V) are polarographically reducible in the presence of excess catechol, but the wave produced by As (V) is depended on time, pH and catechol concentration as well as As (V) concentration. In order to understand this behavior, determination of formation constants for any complex species present were needed to identify which species is electroactive. The literature …

Trace Metal Ion Activities From Liquid-Liquid Partitioning Measurements, John Michael Kennish

Dissertations and Theses

Elucidation of the chemical speciation of trace metals in the natural aquatic environment will lead to a better understanding of their distribution and ecological effects. One approach which can provide useful information about the chemical reactivity of metal ions is the measurement of their activity. Phase equilibrium methods are required and liquid-liquid partition equilibria are applicable. This study utilized model systems to demonstrate this applicability.

The partitioning of copper(II) ions as a chelate of acetylacetone was used to determine the trace activity coefficients of the copper(II) electrolyte in the CU(N0₃)2-HN0₃-KN0₃, Cu(N0₃)2-HC10_{4 …}

Portland State Perspective; June 1978, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: decisions related to the growth of OSU; interview with E, Dean Andweain; saving babies' lives.

Existence Of The Dielectric Constant In Fluids Of Nonlinear Rigid Polar Molecules, John D. Ramshaw

Physics Faculty Publications and Presentations

The existence of the dielectric constant epsilon is investigated for fluids composed of nonlinear rigid polar molecules. The investigation is performed using the functional-derivative approach previously employed to establish sufficient conditions for the existence of epsilon in fluids of linear (axially symmetric) molecules. It is shown that these same conditions are sufficient for nonlinear molecules of arbitrary symmetry. An expression for epsilon in terms of the direct correlation function emerges automatically from the development. This expression, which involves the inversion of a 3 x 3 matrix, is a slight generalization of one obtained earlier by Hoye and Stell using an …

Faculty Senate Monthly Packet June 1978, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The June 1978 Monthly packet includes the June agenda and appendices and the Faculty Senate minutes and attachments from the meeting held May 1978.

Dialectical Laws And Elementary Catastrophes, Martin Zwick

Complex Systems Faculty Publications and Presentations

In the newly developed Catastrophe Theory of Rene Thorn and E.C. Zeeman, it is possible to find mathematical interpretation of certain aspects of Hegelian and Marxist dialectics. Specifically, the three "classical" dialectical principles, (1) the transformation of quantity into quality, ( 2) the mutual interpenetration(or - the unity and struggle) of opposites, and (3) the negation of the negation, can be modeled using the seven "elementary catastrophe " given by Thom , especially the catastrophe known as the "cusp." Far from being an empty metaphysics or scholasticism, as critics have argued , these principles embody genuine insights into a class …

"Role Of Religion And Community Values (Session 2)", L. Fischer Hines, Whitney Bates, Charles Jordan, Steve Snyder, Bill Little

Special Collections: Oregon Public Speakers

Recorded at the Albina Arts Center, Portland, Oregon, and sponsored by the Albina Ministerial Alliance and others.

Faculty Senate Monthly Packet March 1978, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The March 1978 Monthly packet includes the March agenda and appendices and the Faculty Senate minutes and attachments from the meeting held February 1978.

Portland State Perspective; March 1978, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: lifelong learning; epilepsy study; new vice president for student affairs.

"The Old Kingdom: The Age Of The Pyramids", Cynthia May Sheikholeslami

Special Collections: Oregon Public Speakers

No abstract provided.

The Stratigraphy And Structure Of The Columbia River Basalt In The Clackamas River Drainage, James Lee Anderson

Dissertations and Theses

The Clackamas River drainage within the western Cascade Range is approximately aligned with a northwest trending lineation defined by the Portland Hills and the Brothers Fault zone. This area is occupied by an extensive Columbia River Basalt sequence that is deeply incised by the Clackamas River and its tributaries. Two major basalt units of the Yakima Basalt Subgroup, including the Grande Ronde Basalt and the Frenchman Springs Member of the Wanapurn Basalt, are distinguishable in a 515 meter to 550 meter accumulation. Of particular interest is the presence of five trending right-lateral strike-slip faults is consistent with a stress model …

A Study Of Estuarine Sedimentation In South Slough, Coos Bay, Oregon, Charles Allen Baker

Dissertations and Theses

Sediments in the South Slough Estuarine Sanctuary, Coos Bay, Oregon, were sampled and studied in order to determine the sources, dispersal systems and depositional facies of sedimentation. The purpose of the study was to establish baseline measurements and observations on the existing sediment conditions within the relatively undisturbed South Slough Estuarine Sanctuary

A Technique To Calculate Complex Electromagnetic Fields By Using The Finite Element Method, Davood Asgharian

Dissertations and Theses

A computer program based on Maxwell's equations is developed to calculate two-dimensional complex potentials by the Finite Element Method. This study offers a solution to a complex continuum problem by allowing a subdivision into a series of simple interrelated problems. The region of interest is divided into triangular elements. For each node in the grid, the Finite Element Method is used to set up an equation for the potential as a function of those of the surrounding nodes. All these equations are solved by the Gaussian Elimination Method. For increased accuracy this method requires a high degree of division of …