Digital Commons Network^™

Stochastic Approximation Procedures For Mixing Stochastic Processes, Katherine Campbell

Mathematics & Statistics ETDs

Stochastic approximation methods for estimating the parameters of a stationary autoregressive process of finite order are investigated. The emphasis is on robust methods, and the non-linear scoring functions associated with such methods require the development of new techniques for establishing convergence. A mixing condition falling between the traditional strong and uniform mixing conditions is investigated in detail, and used to establish almost sure and mean square convergence of the proposed algorithms when the underlying process satisfies this condition. A short Monte Carlo study verifies the desirable properties of the robust algorithm in the presence of heavy-tailed innovations.

A Proof Procedure For Quantifier-Free Non-Clausal First Order Logic, Neil V. Murray

Electrical Engineering and Computer Science - Technical Reports

A proof procedure is described which operates on formulas of the predicate calculus which are quantifier-free. The procedure, which involves a single inference rule called NC-resolution, is shown to be complete. Completeness is also obtained for a simple restriction on the rule’s application. Examples are given using NC-resolution not only for synthesis of a logic program from its specification, but for execution of a program specification in its original form.

Methodology For Testing Homogeneity Of Variances, Danny D. Dyer, Jerome P. Keating

Mathematics Technical Papers - Archive

Suppose random samples are drawn from each of n populations with unknown means and variances. Developing procedures to test the claim that the population variances are equal (homogeneity of variances) has frequently been a goal for statisticians. One widely used technique is due to Bartlett (1937) and is based on a slight modification of the generalized Neyman-Pearson likelihood ratio test. It is well known, however, that Bartlett's test is highly sensitive to the assumption that the underlying populations are normal (Box, 1953). If nonnormality is present, the use of Bartlett's test can often lead to the rejection of the claim …

Lake Mead And Lake Powell Salinity Reports, Cathy Lee, Steve Gazafy

Publications (WR)

The enclosed reports were compiled for the Colorado River Water Quality Office based on salinity data for Lake Mead and Lake Powell. According to the regional director of the office, the reports are not considered "polished" documents for public distribution. However, he considers them to be "interesting, rough appraisals of general trends that may be very important In our understanding the hydro-salinity system in the Colorado River."

In Vitro Incorporation Of Molybdate Into Demolybdoproteins In Escherichia Coli

Faculty, Staff and Student Publications

When Escherichia coli was grown in the presence of tungstate, inactive forms of two molybdoenzymes, nitrate reductase and formate dehydrogenase, accumulated and were converted to their active forms upon incubation of cell suspensions with molybdate and chloramphenicol. The conversion to the active enzymes did not occur in cell extracts. When incubated with [(99)Mo]molybdate and chloramphenicol, the tungstate-grown cells incorporated (99)Mo into protein components which were released from membranes by procedures used to release nitrate reductase and formate dehydrogenase and which migrated with these activities on polyacrylamide gels. Although neither activity was formed during incubation of the crude extract with molybdate, …

Synthesis Of Benzo[A]Pyrene And Derivatives: Labelling Of Positions 1, 2, 3, 11 And 12, Richard S. Bodine

Chemistry and Chemical Biology ETDs

The ketone, 3, 4-dihydrobenz[a]anthracen-1(2H)-one (1), was prepared in three steps from anthracene. Condensation of the lithioenolate of ethyl acetate with the ketone(1) in tetrahydrofuran at -78°C afforded ethyl (1-hydroxy-1, 2, 3, 4-tetrahydrobenz[a]anthracen-1-yl)acetate (2). Dehydration and dehydrogenation over palladium/charcoal provided ethyl (benz[a]anthracen-1-yl)acetate (3). Reduction of the ester (3) with diisobutylaluminum hydride in toluene at -75°C gave benz[a]anthracen-1-ylacetaldehyde (4) which was cyclized with methanesulfonic acid to benzo[a]pyrene (5). Saponification of the ester (3) gave benz[a]anthracen-1-ylacetic acid (6) which was cyclized with methanesulfonic acid to benzo[a]pyren-11-o1 (7). Oxidation of the phenol (7) with Fremy's salt afforded the quinone, 11, 12-dihydrobenzo[a]pyrene-11, 12-dione (8). Reduction …

Newtruck: A Comprehensive Long-Term Project In Computer Science, Daniel C. St. Clair

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

Stratigraphy And Sedimentary Petrology Of The Northwest Quarter Of The Dutchman Butte Quadrangle, Southwest Oregon, Thomas Edward Koler

Dissertations and Theses

The study area lies in southwest Douglas County 5 kilometers south from Camas Valley and is accessible by state highway 42. The purpose of the study was to map the geology at a 1:31,250 scale, determine the stratigraphy, study the petrology of the formations, and determine the provenance within a tectonic setting.

The Structure And Stratigraphy Of The Columbia River Basalt In The Hood River Valley, Oregon, Susan Timm

Dissertations and Theses

The Hood River Valley, located 100 kilometers east of Portland, Oregon, is in the transition zone between two geologic provinces--the High Cascades and the Columbia Plateau. The entire valley is probably underlain by Columbia River Basalt, but it crops out only on steep hillsides and in stream valleys. The base of the basalt is not exposed in the thesis area. The basalt is overlain by Pliocene and Quaternary basalt and andesite, volcanic sediments and glacial debris.

The stratigraphy of the Columbia River Basalt is useful in determining the path of the basalt flows into western Oregon, in mapping the structure …

Structural Geology Of The Southeast Quarter Of The Dutchman Butte Quadrangle, Oregon, Gerald Lee Black

Dissertations and Theses

Field work in the southeast quarter of the Dutchman ·Butte Quadrangle, which lies within the Klamath Mountains geomorphic province of southwestern Oregon, was completed during the summers of 1973 and 1974. The objectives of the study were fourfold: (1) to produce a geologic map of the southeast quarter of the Dutchman Butte Quadrangle, (2) to determine the nature of the contact between the Dothan and Rogue formations, (3) to construct a stratigraphic column of the Dothan Formation in the area, and (4) to attempt to determine the nature of the deformation occurring in the area.

Meteorology Of Major Storms In Western Colorado And Eastern Utah, U.S. Department Of Commerce

Elusive Documents

No abstract provided.

Impact Of Grazing On Foothill Vegetation, K. C. Hodgkinson, P. S. Johnson

Memorandum

No abstract provided.

An Alternative Semantics For Knowledge, Gregory Mellema

University Faculty Publications and Creative Works

No abstract provided.

Parameter Estimation In Illness-Death Processes: Preinfaractional Angina, Jerome Eisenfeld, B. Canada

Mathematics Technical Papers - Archive

An illness-death process is an absorbing Markov process where the illness states from the transient states of the process. This paper deals with the estimation of illness-death parameters from survivor data. The parameters of interest include the probabilities of recovery, relapse and death and mean residence times. The estimation problem is considered from the point of view of the theory of structural identifiability in compartmental analysis. As a prototypical example, we consider published data on preinfarctional angina.

Random Differential Equations In Water Quality Modeling, Brad A. Finney, David S. Bowles, Michael P. Windham

Reports

A probabilistic river water quality model is developed with the capability of determinging the joint and marginal probability density function of biochemical oxygen demand (BOD) and dissolved oxygen (DO) at any point in a river. The one dimensional steady-state model can be applied to a river system with any reasonable number of point loads and diversions and lateral surface and subsurface inflow. The model can simultaneously consider randomness in the intital conditions, inputs, and coefficients of the water quality equations. Any empirical or known distribution can be used for the initial condition. The randomness in the water quality equation inputs …

Stripping Platinum Metals From Catalytic Converter Units By Use Of Promoted Gas Phase Chlorine Attack, James Harold Finckbone

Retrospective Theses and Dissertations

A gas-phase system to oxidize and remove the platinum and palladium from automotive catalytic converter units was studied. The effects of varying reaction temperature, time and reactant gas concentration upon yields were monitored using a colorimetric procedure based on the regent p-nitroso-N, N-dimethyl amiline. Chlorine plus carbon monoxide at 700°-900°C. displayed the most promise for commercial application.

On The Comparison Of Estimators In A Rectangular Distribution, Danny D. Dyer

Mathematics Technical Papers - Archive

Given two estimators ^1 and ^2 of an unknown parameter ^, Pitman (1937) has suggested calling ^1 a "closer" estimator of ^ than is ^2 if [see pdf for notations] for all values of ^. Using this "closeness" criterion, Johnson (1950) compared several well known estimators of ^ based on a random sample from the rectangular distribution [see pdf for notations], otherwise. In addition, each estimator's mean squared error was given since Pitman's criterion does not take into account the degree of closeness. Unfortunately when two such estimators of ^ are compared, one of them is often preferred under the …

An Arithmetic Computer Approach To Gas Dynamical Modeling, Donald Greenspan, Aspi Rustom Wadia

Mathematics Technical Papers - Archive

Unsteady, two dimensional internal and external flows are analyzed using an arithmetic n-body formulation. A Lagrangian approach is used to study the internal shock formation in a shock tube and the external flows over a circular cyclinder, a flat plate and an airfoil. Viable physical mechanisms of the shock and boundary layer formation and of flow separation are developed. This approach results in a computer simulation of a wind tunnel in which arbitrarily shaped bodies can be studied. Extensive computer examples are described for which agreement with experimental data is good for all cases in which the damping of the …

Design And Evaluation Of A Fisheries Information Storage And Retrieval System (Fisars) For The State Of South Dakota, Richard P. Kramer

Electronic Theses and Dissertations

Extensive data collected each year from the streams and lakes of South Dakota necessitates a computerized system with which to efficiently utilize the large amount of material. A fisheries related data storage and retrieval system (FISARS) was developed sufficiently to provide cost estimates in creating and maintaining such a system. Detailed descriptions were made to provide information in implementing and utilizing the retrieval system. A survey was made of state fish and game agencies currently operating storage and retrieval systems. This information along with comments provided by the fisheries personnel in the state of South Dakota was used as a …

Potential Use Of Hydroelectric Facilities For Manipulating The Fertility Of Lake Mead, Larry J. Paulson, John R. Baker, James E. Deacon

Publications (WR)

Analysis of historical nutrient data for Lake Mead indicates that the fertility of the reservoir has decreased which may be the cause for a corresponding decline in the largemouth bass population. However, it appears that fertility can be manipulated by altering the operation of the dam. The depletion of nutrients in the euphotic zone by phytoplankton and subsequent accumulation in the hypolimnion during summer and fall provide a natural nutrient gradient from which water of varying fertility can be drawn for discharge. This combined with alterations in the depth or seasonal pattern of discharge can possibly be used to enhance …

Stochastic Dominance And Information Value, Young Koan Kwon, John C. Fellingham, D. Paul Newman

Research Collection School Of Accountancy

Incentives for producing and disseminating information have been analysed in many different contexts. Kihlstrom [6], for example, develops a Bayesian framework to analyze the properties of demand functions for information about product quality. From an entirely different perspective, Spence [8, 91 demonstrates the private value of “signalling” information. Similarly, Wilson [lo] considers the value to the firm of producing technological information and the effect of such production on equilibrium theory.

A Mechanism For Specifying Parallel Procedures, James Oliver Smith Jr.

Masters Theses

"This thesis presents a mechanism that will provide a semantic and syntactic environment for expressing parallel procedures. This mechanism will be referred to as the Parallel Machine. The parallelism of the Parallel Machine is accomplished through an arbitrary number of specialized computing elements that each implement a single command called a Simultaneous Command. Each Simultaneous Command is capable of determining the occasions for its action by observing conditions within the Parallel Machine. There is no restriction on the number of Simultaneous Commands that can be defined or be simultaneously active. Within a parallel procedure expressed as a set of Simultaneous …

Separation Of 1,3-Pentadiene With Molecular Sieves, Steven R. Schwinn

Retrospective Theses and Dissertations

The feasibility of separating piperylene (1,3-pentadiene) from a mixture of five-carbon olefins and diolefins with Linde 5A Molecular Sieves was investigated. Olefins and especially diolefins are very reactive and tend to polymerize on the highly polar adsorptive surface thereby clogging the pores of themolecular sieve. It is believed that the acid sites within the zeolite cages catalyze this polymerization reaction and that poisoning of these sites by adsorption of a nitrogenous base (ethylenediamine, dimethylamine or ammonia) or hydrogen sulfide inhibits the formation of polymers. Two criteria were used in the evaluation of the polymerization inhibitors tested. First, a series of …

A Polarographic Study Of Fe(Ii) And Fe(Iii) Complexes With Catechol, Wen-Tang Shen

Dissertations and Theses

A study of the anodic polarography of catechol in 0.100 F sodium perchlorate is presented. A new wave is observed in alkaline solutions which is different from the simple oxidation wave of catechol to ortho-quinone observed by previous workers. The importance of buffer materials is discussed and a possible explanation of the new wave is suggested.

A study of the polarography behavior of Fe(II) and Fe(III) in the presence of catechol is reported. In the case of reduction of Fe(III) in the presence of catechol, two steps occur at about -1.5 and -1.8 volts (vs. SCE) at pH higher than …

A Multi-Valued Attitudinal Study Of Obscenity And Freedom Of Expression, Allen W. Palmer

Theses and Dissertations

This study was designed to examine whether religiosity is a determining factor in public reaction to obscenity issues.

A sample population of 452 residents of the community of Idaho Falls, Idaho was selected using a technique based on a list of random numbers in October, 1979. Path analysis, Chi-square analysis and Spearman's correlation were used to measure the results.

The study found there is a significant relationship between religiosity and behavior intention toward obscenity issues. The affective component of the attitude organization functions somewhat as a mediating variable. There were also findings that members of the Church of Jesus Christ …

A Graded Bibliography On Macro Systems And Extensible Languages, John R. Metzner

Computer Science Faculty Research & Creative Works

No abstract provided.

Negative Ion Charge Transfer Of The Reaction Of S⁻ And O⁻ With Atomic Hydrogen Producing H⁻ Ions From 1500 To 10 Kev, George F. Hagner

Doctoral Dissertations

"The charge transfer reactions of 0^-, S^- with atomic hydrogen were studied from 1.5 to 10 KeV, and the reaction Cl^- + O₂ + O₂^- + Cl was studied from 10 eV to 10 KeV. The reactions studied were normalized to the reaction H^- + H + H + H^-. The maximum measured cross sections were 4.6 x 10^-16 cm² for the reaction Cl^- + O₂ + O₂^- + Cl and 4.4 x 10^-15 cm² for the reaction 0^- + H …

Plasma Polymerization Of Tetrafluoroethylene. Iii. Capacitive Audio Frequency (10 Khz) And Ac Discharge, N. (Nicholas) C. Morosoff, H. Yasuda, E. S. Brandt, C. N. Reilley

Chemical and Biochemical Engineering Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene (TFE) is studied in a capacitively coupled system with internal electrodes using a 10 kHz (af) and a 60 Hz (ac) source. The emphasis is on identifying conditions that are compatible with continuous coating of plasma polymer on a substrate moving through the center of the interelectrode gap. Operation at a pressure below 100 mTorr is most favorable for deposition of a substantial portion of the plasma polymer on this substrate. Plasma polymer deposited in this way is characterized by ESCA and by deposition rate data and compared to that deposited using rf power in …

Plasma Polymerization Of Tetrafluoroethylene. Ii. Capacitive Radio Frequency Discharge, N. (Nicholas) C. Morosoff, H. Yasuda, E. S. Brandt, C. N. Reilley

Chemical and Biochemical Engineering Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene (TFE) is studied in a capacitively coupled system with internal electrodes using radio frequency (13.56 MHz) power. The emphasis is on identifying conditions that are compatible with continuous coating of plasma polymer on a substrate moving through the center of the interelectrode gap. At high pressure (500 mTorr), deposition of plasma polymer is primarily on the electrodes rather than on a substrate placed midway between electrodes. Glow is observed in only part of the interelectrode gap at low powers and fills the gap only at high power levels. The use of a magnetic field effects …

Nucleation Experiments With Monodisperse Nacl Aerosols., Darryl J. Alofs, M. B. Trueblood, D. R. White, V. L. Behr

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Nucleation Experiments with Monodisperse NaCl Aerosols Showed Good Agreement with the Kohler Theory Relating the Critical Super-Saturation S//c to the Dry Size. Aerosols Produced by Condensing NaCl Showed the Same S//c as Those Produced by Evaporating Aqueous NaCl Solution Droplets. This Indicates that If There is an Energy Barrier in Going from a Dry NaCl Particle to a Solution Droplet, This Energy Barrier is Small. the Fact that the Evaporation Aerosol Particles Are Cubical Crystals and the Condensation Aerosols Are Amorphous Spheres is Shown to Make No Difference in the Nucleation Threshold. the Investigation Also Gives Insights into the Performance …