Digital Commons Network^™

Resonant Electron Transfer And K-Shell Excitation Of Lithiumlike Projectiles In Collisions With Neutral Gas Targets, Carollyn Sloan Oglesby

Masters Theses

No abstract provided.

A Study Of Shadow Contrast For A Grating, Steve Eugene Watkins

Masters Theses

"A theoretical and experimental investigation of the causes of the reduction of the contrast in the shadow of a grating has been made. The variation of the shadow contrast is shown to be different for the two causes--diffraction and divergence. The conditions which determine the dominant effect are presented. Also, the contrast pattern due to diffraction is shown to have a squared scaling law while the divergence pattern is shown to scale linearly. This understanding of the shadow contrast increases the versatility and usefulness of the shadow moire technique, an optical method for determining the topography of surfaces"--Abstract, page ii.

Automated Evaluation Of Reservoir Parameters Applying Pressure Transient Theory, Steven Robert Homoky

Masters Theses

"This study presents an investigation to automatically evaluate reservoir parameters using pressure transient theory. Methods will be introduced to numerically fit the well test data in the real (time) domain (specifically the pressure change as a function of test time). The numerical fit and known fluid, rock and well properties will be used to evaluate the dimensionless storage coefficient. The theoretical dimensionless pressure (being a function of skin factor, permeability, and dimensionless storage coefficient) is obtained by Laplace Inversion. The ability to evaluate the dimensionless storage coefficient thus reduces the parameters of the pressure equation by one. Varying the skin …

Development Of Apparatus For Constant-Hydraulic-Gradient And Constant-Rate-Of-Strain Consolidation Tests, Jack F. Geerlings

Masters Theses

"A back pressure type consolidometer manufactured by Anteus Laboratory Equipment Company is modified to perform either constant hydraulic gradient or constant rate of strain consolidation tests. The modification of the consolidometer and its instrumentation are described. Computer software is developed for the purpose of apparatus control and for test data acquisition and analysis.

Constant hydraulic gradient and constant rate of strain consolidation tests are performed on samples consolidated from a slurry in the laboratory. Results of these tests are compared with incremental consolidation tests performed with an oedometer.

The modified apparatus was found to be suitable for use in both …

Carbonate Facies Of The Kimmswick Limestone (Trenton/Galena) In Southwestern Illinois : Their Relations As Oil Reservoirs And Traps, Gregory A. Crews

Masters Theses

"Four potentially productive oil horizons have been identified in the Kimmswick Limestone (Trenton/Galena), Ordovician of southwestern Illinois. Four non-porous caprock zones and four porous horizons were identified and informally named after corresponding members of the Dunleith Formation (Illinois State Geological Survey classification). The porous horizons generally consist of coarse-grained, fossiliferous limestone, which is overlain by finer grained, spar-cemented, impermeable limestone.

In order of production potential, the horizons are the upper Moredock, lower Moredock, Beecher-St. James (lowermost stratigraphic unit), and New London (uppermost stratigraphic unit). Porosity in the upper Moredock horizon is relatively consistent throughout the study area, as determined by …

Complex Reactions In Porous Media, Dar-Sen Horng

Masters Theses

"The dusty-gas model is used to describe the molar fluxes of complex irreversible reactions with moles changes in isothermal porous catalysts.

The model presented in this work can be used for any number of independent reactions occurring in porous media as long as the number of independent reactions is equal to or less than the total number of species.

Systems of two parallel reactions involving a ternary mixture is used in this work. Five sets of reaction parameters are used for each reaction system and the overall selectivity and effectiveness factors are calculated for different geometric constants.

Results show that …

An Evaluation Of Magnetic Field Shielding And Cross Talk For Various Cable Configurations, Amir Hossein Nafar

Masters Theses

"The effect of shield grounding on magnetic field coupling in coaxial and twisted pair cables, was studied for various positions of the ground connection at 50 KHz. For the case of only one end of shield grounded the attenuation was about 60 dB. Furthermore, the effect of frequency from 50-500 KHz was considered on three cases. Thus it was concluded that attenuation increases as frequency increases. A combined experimental and analytical investigation was also conducted to characterize the mechanism of cross talk between wires of ribbon cable and traces on printed circuit boards. Inductive and capacitive coupling were studied in …

Industrial Simulation With Animation, Edward T. Hammerand

Masters Theses

"This thesis examines and evaluates the new simulation language PCModel. Prior to the arrival of PCModel, simulation via computer typically resulted in pages of statistics compiled over the duration of the simulation. PCModel's approach is to simulate the model on the display before the user in real time. Additionally, user interaction is supported to allow changes to be made throughout the simulation run.

The evaluation of PCModel is accomplished through inspection of a pair of examples already simulated in a conventional simulation language. The examples show the relative strong and weak points of the language, as well as demonstrating how …

Surveying Computer Graphic Trends, Angela Bradley

Masters Theses

Computer graphics is a new tool for the visual artist. Historic and educational theories and facts outline the rapid growth of the medium and how it has become an essential tool for educators, researchers and businesses. Business applications remain at the periphery of computer graphic applications, but are included in the general trend of the new medium's development.

Visual art generated through computer graphic imaging is exemplified in the work of artists: Barbara Nessim, computer graphic student, Jim Squires, and the team of computer graphic artists, Richard Chuang and Glenn Entis. Nessim is a career graphic designer and artist, who …

Thermodynamics Of Ion Association In Aqueous Fluoride Solutions. Determination Of Stability Constants For (Naf), (Mgf)+ And (Caf)+ Ion Pairs, Waldo Zamorano-Santander

Masters Theses

Stoichiometric ion-association constants were determined at several ionic strengths for (NaF) over the temperature range 15-40°C and for (MgF)⁺ and (CaF)⁺ over the temperature range 25-45°C using fluoride ion selective electrode measurements.

Thermodynamic association constants, K°, were obtained through extrapolation of the stoichiometric values to infinite dilution. Values of K° for (NaF) are 1.70, 2.16 and 2.54 at 15, 25 and 40°C, respectively. The K° values for (MgF)⁺ are 73.4, 88.0 and 98.2, and for (CaF)⁺ are 13.7, 17.5 and 21.9 at 25, 35 and 45°C., respectively.

The stoichiometric association constants for (NaF) can be reproduced …

Bimetallic Complexes Of Tungsten And Mercury, Zakariah Abdullah

Masters Theses

A tungsten-mercury bimetallic complex [(CO)₄W(PPh₂CH₂CH₂PPh₂)₂HgCl₂]_n has been synthesized from the reaction of trans-(CO)₄W(η¹-PPh₂CH₂CH₂PPh₂)₂ and HgCl₂. The value of n has not been determined due to the insolubility of the complex. The anologous reaction with HgI₂ gave an insoluble, uncharacterizable complex, which best corresponds to (CO)₄W(PPh₂CH₂CH₂PPh₂)₂Hg₂I₄.

The geometry about tungsten in [(CO)_{4 …}

Bimetallic Tungsten Carbonyl Complexes, Jin-Guu Wang

Masters Theses

Two heterobimetallic complexes, [(CO)₄W(PPh₂CH₂CH₂-PPh₂)₂MCl₂]_n ( M = Pd or Pt ), were prepared from the reaction of trans-W(CO)₄(ŋ¹-PPh₂CH₂CH₂PPh₂) ₂ with M(COD)Cl₂ (COD = cyclooctadiene). A trans arrangement about tungsten was found for both the palladium and platinum complexes. The square planar palladium center was shown to have a trans geometry in solution while a cis arrangement for the platinum moiety was observed. Far infrared studies indicated a mixture of cis and trans …

Evaluating School District 428'S Curriculum Media Development Center's Clientele, Randolph H. Burge

Masters Theses

The Curriculum Media Development Center was conceptualized by the Illinois Office of Education and Vocational Services and the Illinois Depaartment of Corrections to meet the need for specially developed instructional materials in reading and math for Title I students being served by School District 428. The project began in 1974 and was located at the Illinois Youth Center, St. Charles. However, during 1979, it became apparent that because of its location in Kane County, the Curriculum Media Development Center was providing services primarily to those institutions in the northeast quadrant of Illinois. In January of 1980 the decision was made …

The Effects Of Test-Taking Instruction Upon The Test Scores Of Students Labeled As Learning Disabled, Deborah Wolfson

Masters Theses

A multiple-baseline design was used to investigate the effects of test-taking instruction upon the social studies test scores of four seventh grade students labeled as learning disabled. This two-phased (baseline and post-intervention) study ran for two semesters and included 14 test entries. All the tests were administered in the subjects' social studies class and scored by the subjects' social studies teacher. The teacher was not informed as to the nature of this study while it was in progress. The 10- day, individually instructed intervention package included activities in (a) test preparation (b) general test-taking principles (c) clue words (d) following …

A Theoretical Study Of Antecedent Soil Moisture As It Relates To The Rainfall-Runoff Relationship, Karen Sue Angert

Masters Theses

"This paper addresses the feasibility of using antecedent soil moisture as a tool for predicting the extractions from rainfall due to the infiltration process by solving the one-dimensional equation for saturated- unsaturated flow through porous media. Soil moisture characteristics in the form of empirical equations were used to incorporate the hysteretic behavior of the soil-water relationships into the model. Two sets of parameters were developed to be representative of a silty sand and a silty fine sand.

Extractions as infiltration from a given storm hyetograph and the total volume of direct runoff were computed for different initial moisture states. When …

Stress And Stress Management Among Geoscientists In The U.S. Petroleum Industry, August 1984: An Analysis, Ann M. Hagni

Masters Theses

"For the past three years, employment in the petroleum industry has declined significantly. This, along with many other factors, has created a potentially stressful situation similar to the petroleum industry recession of the late 1950s. A four page "Stress Questionnaire" mailed to 1000 geoscientists in the U.S. petroleum industry in August, 1984, concludes that geoscientists appear to be coping very well with their potentially stressful situation.

These geoscientists rated themselves considerably up-to-date with respect to their professional discipline and show a strong need to grow and develop. They are very personally involved in their work and at least some of …

A Study To Determine The Extent Of A Justification For A Building Bond Referendum In Mt. Zion, Illinois, Robert Herrmann

Masters Theses

The purpose of this field study was to determine the extent of a justification for a bond referendum that would provide the funds for additional facilities for the Mt. Zion High School. This study is concerned with the action taken to achieve that goal.

An overview of the community's history with regard to education was relevant to understanding the importance of education in this community. The problem that faced the community was overcrowded facilities and lack of updated curriculum. A growth in population was addressed in terms of its impact on the educational facilities at the high school.

This field …

Winter Concentration Areas Of White-Tailed Deer (Odocoileus Virginianus) In Illinois: A Discriminant Analysis, Paul A. Brewer

Masters Theses

Two discriminant models were derived from 40 variables measured in 12 white-tailed deer (Odocoileus virginianus) winter concentration areas and 12 non-concentration areas in east-central Illinois. The first model correctly classified 100% of these areas based on area of refuge, area of upland hardwoods with <50% crown closure, area of bottomland forest with <50% crown closure, distance of unimproved roads, and total topographic relief. This model was tested on 6 winter concentration areas in west-central Illinois and 6 winter concentration areas in northern Illinois. The first discriminant model correctly classified 91.7% of these areas.

The second model originated from the same set of variables, however the refuge area variable was removed in an attempt to classify winter concentration areas without knowledge of refuge areas. This model correctly classified 91.7% of sites in east-central Illinois, and 75% of the areas in west-central and northern Illinois.

Refuge accounted for nearly …

The Effects Of Language Processing Strategies Upon Reading Comprehension, Kathy Ann Kirby

Masters Theses

In 1975, the Education for All Handicapped Children Act was passed providing educational services for children with exceptionalities. Learning disabilities was one of those exceptionalities whose definition used a language disorder as its major criteria for the identification and classification of a specific learning disabilities. The inclusion of language disorders within its definition brought about greater interest in language and the understanding of language development, acquisition and processing and how these aspects related with academic learning, particularly with reading.

The purpose of this study was to address the issue of language processing strategies in the remediating of language deficits and …

Oxygen Absorption And Diffusion In Tissue, Bo Henrik Arve

Masters Theses

"A mathematical model which describes the diffusion of oxygen in absorbing tissue is presented. The model accounts for the presence of a moving boundary which marks the deepest penetration of oxygen into the absorbing medium and predicts the steady state and unsteady state distribution of oxygen through the absorbing tissue.

Results are shown for zeroth, half, first, one and a half, and second order rates of absorption as well as when the rate of absorption is described by the Michaelis - Menten equation.

The model predictions show that the total time for the moving boundary to recede to the surface …

Electric And Magnetic Field Induction On Parallel Transmission Lines, Robert Joseph Schnell

Masters Theses

"The theory behind electric and magnetic field induction is developed. The theory is then applied to the calculations of induced voltages and currents on a de-energized three phase transmission line paralleling an energized three phase transmission line. The effect of shield wires on the induction phenomena is explained. Interactive computer programs for both electric and magnetic field induction are presented and instructions given for their use. Both programs are stored on disks and are for use on an IBM (or compatible) personal computer. Example problems are posed and solved"--Abstract, page ii.

Sintering Of Catio₃ With The Addition Of Caco₃ And Lif, Surapol Pleekram

Masters Theses

"The densification of CaTiO₃ with the addition of 4.74, 5.90, 6.88 mol% CaCO₃ and 22 mol% LiF was investigated over the temperature range 800° to 1050°C, for sintering times ranging from 1 to 216 hours. It was found that CaCO₃ reacts with LiF and to form a liquid at a temperature of about 450°C. This liquid enhances the densification of CaTiO₃ . The densification process was followed by making weight loss, shrinkage and porosity measurements. The microstructural development was determined by scanning electron microscope examination of both fractured and polished surfaces. X-ray diffraction and DTA/TGA were …

Problems From Einstein For Process Theism, Kevin A. Blazs

Masters Theses

No abstract provided.

The Effects Of Validation Versus Reality Orientation Approaches In Music Therapy With Disoriented Elderly Adults, Debra Diane Harvey

Masters Theses

The purpose of this study was to investigate the effects of Validation and Reality Orientation in a music therapy setting with disoriented elderly adults. Subjects (age 80 and older) were divided into four treatment groups, two each of Validation and Reality Orientation (total n=19). The groups met for thirty minutes, five days a week, for six weeks. Pre and posttest measures of orientation, ego integrity, and behavior were compared using a one-way analysis of variance on mean gain scores. Results showed a significant improvement (p<.05) on the measure of ego integrity in the Validation treatment groups. No other significant differences were found for either treatment group on the measures of orientation or behavior. Recommendations for further investigation include more attention to specific levels or orientation and behavior prior to treatment, and the use of a larger sample population.

The Kinetics Of The Metal Exchange Reaction Between N-(2-Hydroxyethyl) Iminodiacetatonickelate (Il) And Copper(Ii), Craig R. Weed

Masters Theses

The reaction between copper(II) and N -(2-hydroxyethyl)iminodiacetatonickelate( II) (NiHEIDA) was studied between pH 4.0 and 5.6 over a 70 fold variation in copper concentration at an ionic strength of 1.25 and a temperature of 25° C. The reaction order in both NiHEIDA and Cu(U) is first. The reaction rate is pH sensitive and a hydrogen dependent pathway as w ell as copper dependent and copper and hydrogen independent pathways were found.

Evidence is given for a stepwise mechanism for the unwrapping of HEIDA from its nickel complex, follow ed by copper attack to give a dinuclear intermediate, which then breaks …

Heterocyclic Syntheses Utilizing Aryl Cyanates, Joseph Eugene Drumm

Masters Theses

No abstract provided.

The Depositional History Of The Point Pleasant Member Of The Cynthiana Formation In Northern Kentucky, Gary J. Stefaniak

Masters Theses

Bioclastic limestones, siltstones, and shales of the Point Pleasant Member were deposited in a shallow marine environment immediately below normal effective wave base. High-energy conditions produced by storms lowered the effective wave base and stirred the bottom sediments and redistributed them into bedforms. The different types of contacts, distribution of the faunal groups, and fabrics permit inferences regarding energy levels and assignment of samples to a mode of deposition. Vertical and lateral trends were then deduced. High-energy conditions are believed to have occurred during Early and Late Point Pleasant time, whereas, low-energy conditions prevailed during deposition of the middle Point …

A Study Of Integral Equations For Computing Radial Distribution Functions, Robert C. Scherzer

Masters Theses

The use of integral equations to find radial distribution functions for computing thermodynamic properties is examined. The system considered is a simple classical fluid with interactions according to the Lennard-Jones (6-12) pair potential function. Two parametric integral equations (C and T) are studied in detail. Derivation of equation T and a power series solution are given. Computer solutions at several different temperatures, densities, and parameter values are obtained. Comparisons are made betv/een these results and results from integral equation N, PY, and HNC, and results from Monte Carlo, molecular dynamics, and power series methods. Equations C and N are found …

Resolution Algorithms In A Parallel Processing Environment, Paula Beth Brandman Hencken

Masters Theses

An ever increasing number of processors are becoming available to the multiprocessor user. For faster response and efficient utilization of parallel processing systems it is necessary to develop parallel algorithms to solve a single problem.

This paper evaluates the complexity of resolution algorithms run in a parallel processing environment. An overview of parallel processing is presented along with a discussion of general resolution and resolution-refutation systems. An analysis of the complexity required by different control strategies to perform resolution programing is presented using both uniprocessor and multiprocessor systems.

Kinetics Of The Formation Of The Nickel(Ii) Complex With N, N' -Dimethylethylenediaminediacetic Acid And The Metal Exchange Reaction Between N,N'-Dimethylethylenediaminediacetatonickel(Ii) And Copper(Ii), Roger A. Karel

Masters Theses

The kinetics of the reaction of aquonickel (II) ion with N'N'-dimethlethylenediaminediacetic acid has been studied at 25°C and 0.1M iconic strength over a pH range of 6.0 to 9.3 using stopped-flow techniques. Formation reactions in all cases were first-order in Ni (II) and in ligand. The formation rate constant for the protonated and unprotonated species were evaluated and compared to their theoretical value. The rate-determining step is shown to be ring closure. A comparison of this system with other studies involving complexation of nickel (II) confirm the magnitude of the internal conjugate base effect and also shows a correlation between …