Digital Commons Network^™

Reaction Of Atomic Hydrogen With Chloroform In A Discharge Flow Reactor, Wan-Kuen Jo

Theses

The reactions of atomic hydrogen with chloroform were studied in a tubular flow reactor both in a 4 cm i.d. and 2.6 i.d. discharge flow reactor at pressure of 2.22 to 2.82 mmHg and room temperature using GC and GC/MS for analysis of the reaction. The hydrogen atom concentration at the reaction flame was measured by Chemiluminescence titration with nitrogen dioxide. The hydrogen concentrations are in the 2.48 x 10⁺¹⁴ to 4.83 x 10⁺¹⁴ atoms/cc range at six different hydrogen flow rates. Evidence was found for the formation of atomic carbon intermediate in the reaction, but methane was …

Human Factors In The Design Of Computer Graphics Input/Output Interfaces, Michael Uche Amadi

Theses

Computers are used for solving problems of various kinds and therefore, if the users are to fully benefit from the systems, they must be considered during the earliest stages of the system development. There are three major classes of computer users namely: naive, managerial, and scientific-technical. These users have different characteristics that the designer must consider within his/her system. Only by including such distinctions will these user groups each be able to perform at their respective optimum levels. Just as there are different users, there are also numerous applications to which computers can be applied. This thesis will be restricted …

Two Dimensional Diffusional Model For Leakage Of Macromolecules In The Interstitial Space, Suthiluk Dumrongsiri

Theses

Two dimensional diffusion of macromolecules through the interstitial in the hamster cheek pouch was studied with intravital fluorescence microscopy. After topical application of Bradykinin, the movement of Fluorescein isothiocyanate (FITC)-labeled dextrans of average molecular weight 150,000 daltons (Dextran 150) was recorded on videotape which latter was played back frame-by-frame for analysis by digital image processing. Leakage of macromolecules in response to topical application of Bradykinin occurs at discrete leakage site in post caplillary venules of 15-25 um diameter, rather than in the capillary themselves. A mathematical model of two dimensional convection plus diffusion was used to simulate the macromolecule transport. …

Structural Influences In Nature, John Hair

Theses

Not Included

Psychic Expression Through Image-Making, Donna De Palma

Theses

None provided.

The Effects Of Common Solvents On Different Types Of Flexographic Printing Plates, Jack Jenkins

Theses

A dynamic development which has sparked flexography is the introduction and use of photopolymer plates. These plates have simplified flexographic printing by reducing the amount of time and effort needed to prepare plates for press and makeready. An experiment was conducted to determine the effect of commonly used solvent mixtures on flexographic plates. The plates tested include those using natural rubber, Buna N, and various photopolymers. The experiment specifically studied change in hardness of these plate materials due to immersion in different solvent mixtures over time. Noticeable differances in the degree of softening of plates was observed after 24 hours …

Novel Array Representation Methods In Support Of A Microcomputer-Based Apl Interpreter, Daniel Fleysher

Theses

Objective: To study novel ways of representing data arrays for potential application in a microcomputer-based APL interpreter. The goal is to find, for arrays containing mixed integers and real numbers, a way to improve both storage efficiency and thruput, over that obtainable using conventional APL interpreter array representations. Investigation: For the purposes of this study, three representative APL operators were chosen for implementation - dyadic addition, multiplication and selection. To establish a set of base cases from which to work, these three operators were implemented for two distinctly different data structures: Case-0: arrays containing only fixed length floating point data …

Optimization Of An Elastic Drive Belt System Using An Algorithm Of Automated Optimal Design, Gerald T. Lioy

Theses

In this design project an elastic drive belt system is optimized using an algorithm of automated optional design, AOD. First, some basic background information on AOD and elastic drive belt systems is reviewed. An elastic drive belt system configuration is defined, mathematically formulated, and optimized. The mathematical formulation, including a set of constraints, is completely derived. It is set up to be as general as possible so that it may be applied to a wide variety of different problems. In several places the formulation uses the recommendations of an elastic drive belt manufacturer for a good design. A sample design …

An Analysis Of Stroke Fluid Flow In A Converging Channel Using A Penalty Function Finite Element Formulation, Keith A. Honkala

Theses

A penalty function finite element program is developed to study two dimensional creeping flow in a converging channel. The finite element solution is compared to the analytical solution of purely radial flow. The analysis reveals that the assumption of purely radial flow is valid for small apex angles, but is inappropriate for larger angles .

Nexus: Painting As A Link To A Primary Reality, Karen Sardisco

Theses

None provided.

The Determination Of Metameric Mismatch Limits Of Industrial Colorant Sets, Michael Beering

Theses

The metameric mismatch limits for two industrial colorant sets, a set for Acrylonitrile Butadiene Styrene polymers and a set for an acrylic enamel paint system, were determined for a reference illuminant, D65 and test illuminants of FS42, FN40, and Illuminant A. An overlap in color gamuts was found in all cases of similar test conditions between the two sets. Trends in the size, shape, and location of the gamuts were illustrated in 1976 CIE u'v' color space. The results show vastly dissimilar gamuts for all three of the test illuminants.

The Effect Of Cross-Coupling On The Temporal Response Of Ultrasonic Transducer Arrays, David Hadley

Theses

An investigation was performed examining a possible cause of acoustic cross-coupling in ultrasonic transducer arrays. It was postulated that pulse velocity was decreased due to the physical presence of other ultrasonic pulses in the medium. It was demonstrated that average pulse velocity is independent of the number of opposing waves traveling through an acoustic medium. A description of variable pulse velocity is discussed.

Spectrophotometric Color Formulation Based On Two-Constant Kubelka-Munk Theory, Eric Walowit

Theses

A new approach to computer color formulation based on non-linear least-squares techniques has been developed to characterize colorants and predict their behavior in mixtures. This approach allows the optimization of absorption and scattering calculations to characterize these colorants. This same method has been used to directly match the spectral reflectance of a standard with a mixture of colorants that yields nearly the same spectral reflectance as the standard being matched. Several advantages have been gained over more traditional methods: Kubelka-Munk K and S has been determined without primary binary blends, the spectral reflectance of the standard and proposed formulation exhibit …

A Method For Comparison Of Anti-Reflection Coatings For Photoresist Via A Simple Computer Algorithm, Neil Levine

Theses

A method was achieved to allow a quantitative and rapid comparison of different anti-reflection coatings (ARC) used under the photoresist layer in semiconductor-device fabrication. The computer algorithm utilizes the spectral irradiance of the source, reflectance of the substrate, absorption of the photoresist and ARC, and the spectral sensitivity of the photoresist to provide a quantitative value of the total system response to reflectance. The algorithm was tested by correlating the resultant value with photoresist resolution on aluminum, polysilicon, and 2nd-oxide process layers, and found to be linear with an R-squared value of 0.99S5 within the region investigated. Subsequent statistical analysis …

Case Study Of Installing A Research Project Cost Accounting System, Marjorie Rolfsmeyer

Theses

The thesis, Case Study of Installing a Research Project Cost Accounting System by Marjorie Rolfsmeyer, explores the development and implementation of a computerized cost accounting system for research and development (R&D) projects within the Health Care Division of a major corporation. The author identifies the unique challenges of research cost accounting, which differs from traditional manufacturing cost systems due to its unpredictable nature and project-specific expenditures.

The study outlines the purpose of a project cost accounting system, emphasizing its role in budgeting, financial tracking, and managerial decision-making. It discusses how cost control mechanisms, including detailed expense reporting, job numbering, and …

The Determination Of Paper Spread Functions And Their Fourier Transforms From Kubelka-Munk Absorption And Scattering Measurements, Brian Pridham

Theses

In the study of imaging on paper, the effect of the penetration of light into the paper is usually neglected. Measurements show that light does not emerge from the paper sample at the same spot where it entered. The manner in which the light spreads through the paper is described by the spread function of the paper. It was suspected that an estimation of the paper spread function and its Fourier transform could be made based on the Kubelka-Munk absorption (K) and scattering (S) coefficients of the paper using a general diffusion model. The results show that an estimate of …

A Global Resource Allocation Model For An Electrical Utility, Pantelis G. Tinios

Theses

The management of the electric utility company, as the management of any other company, has to make important decisions which will have a direct impact on the company's future operations.

In this study, a global model was devised which enables the management to make more intelligent decisions related to the company's planning process.

The company's goals and subgoals are formulated, in a systematic way, into the mathematical model along with operational and financial constraints. Productivity growth, steady labor force, fuel availability, cash flow requirements, share rating, and coverage were some of the goals to be achieved. The goal programming technique …

A Comparison Of Training Available To Entry Level Naval And Merchant Marine Engineroom Personnel, Paul J. Bugelski

Theses

Similarities between occupations or industrial environments are often overshadowed by differences between goals, services, or products. From the time that shipboard steam propulsion became a practicality the Naval and merchant marine services have experienced this phenomena. For various reasons, the two sectors have ignored similarities between their respective occupational sub-groups, e.g. engineroom crews, and the training which facilitates each group's performance.

Manning and training problems, related to the evolution of automated shipboard propulsion plants, have been shared by the U.S. Navy and commercial ship operators. Recent events such as the British Falkland Islands crisis and the implementation of the U.S. …

Keeping Up With Technological Change, Karlis V. Kopans

Theses

Advances in technology over the past fifty (50) years have changed virtually everything that touches our lives today to some degree. However, in the last five years or so, these innovations have been combined into products and systems which have visibly begun to change society as we have known it in the past.

Only in recent years, have the affects of technological change or innovation on society begun to be examined. While a fair amount of literature has been published to date on specific areas of technological change, few publications have been produced which provide a general overview of the …

Failure Rates And Leakage Current Increase In Tantalum Capacitors Of Different Manufacturers, Joseph G. Grant

Theses

This study has determined the effect of high humidity and temperature on solid tantalum capacitors, from five different sources.

The reasons for using capacitors from five different prestigious sources is to first determine how the parameters change with the different manufacturing techniques used by the different sources. Secondly to rank the different sources according to reliability. The parameters that were measured before and after the "1000 hour" high temperature and humidity test were, capacitance, leakage current, and equivalent series resistance. All the capacitors showed significant increase in leakage current after the test, but there were wide variations in catastrophic failure …

A Cogeneration Industrial Park In An Urban Environment In The Year 2000, Raymond T. Scott

Theses

An investigation into the feasibilty of placing an industrial park in an urban environment in the year 2000 was made. A selected cogeneration facility located within the park would supply electricity and process steam to the industries with minimal transmission costs and environmental effects. A projection was made on the industries that would exhibit growth to the end of this century, and yet be environmentally benign in nature. These industries would be placed within the industrial park. The selection of the cogeneration facility was based upon projections of fuel availability, environmental factors and available technologies. Socio-economic factors and the effects …

Simulation Of The Manufacturing System : A General Discussion, Di-Cheing Chien

Theses

This thesis treats the problem of multi-variable sensitivity analysis in a production system which may be used in investigating a variety of characteristics of a flow production system which involve idle time, cost, production rate, ect. are the subjects of the analysis.

The analysis procedure follows the rule of INPUT/OUTPUT through a production process. A simple system model using elements such as : raw material, transfer tool, labor, machine and energy/ or electrical power, is used to lead into the construction of dependent-variable system. A utilization is made of industrial robots as well as humans in loading and unloading machines …

Parents As Tutors: A Home Remediation Program, Carla Harding Pund

Theses

The purpose of this study was to determine whether parent tutoring of developmentally delayed children would significantly improve student achievement. This study focused on a parent-participation program, systematically controlled, which was designed to educate parents in methods of productive teaching so that these parents could participate in a remediation program for their child.

The subjects for this study were those students, assigned to a self contained kindergarten classroom, who scored below the 40th percentile in a combined score of the mathematics and language subject areas of the Test of Basic Experiences (TOBE). Of the 43 students who were administered the …

Effect Of Logo Programming On Mathematical Problem-Solving Skills, Gwynn Newman

Theses

As a result of an interest in determining effective means of utilizing computers in education, this study was conducted to investigate the effects of programming instruction in the computer language of Logo on mathematical problem-solving skills. It was predicted that students who experienced instruction in Logo would achieve significant gains in mathematical problem-solving skills.

During the 1984-85 school year a sample of 30 third grade students from the Wentzville R-IV School District was randomly assigned to two groups. The first group participated in an after-school program where they received 12 one hour sessions of instruction in the turtle graphics portion …

Utilization Of The Digital Vax 11/750 Computer In The Administration Of An Adult Evening Collegiate Program, Barbara Barr Dabbs

Theses

Unavailable.

Interest-Free Banking In Islamic Economics, Alsharif Abdulmohsin M. Alghalib

Theses

This project investigates the possibility of the movement and proposals for establishing interest-free banking within the systems presently existing in the Muslim countries . which range from free enterprise in the western sense to socialist attempts. .

This project takes as precepts the Islamic thought in economics; it does not occupy itself with their legal and ideological justification but rather it goes on to investigate their economic significance and implications . In other words , the Islamic economy is given by assumption in this project . Its purpose is to show how this economy works and how its major variables …

The Effects Of Scheduling On Public School Instrumental Music Education In Saint Louis County, Missouri, Susan M. Broeker, Timothy E. Pfeiffer

Theses

To determine the effects of scheduling on instrumental music programs in the public school districts of Saint Louis County, Missouri, a questionnaire was distributed to fifty-two instrumental music teachers in twenty-eight districts . We proposed to find common concerns shared by instrumental music teachers with regard to the scheduling of their classes. Our respondents concurred on specific scheduling situations that cause either alteration or complete elimination of their programs. Elementary curriculum is crowded with numerous non-academic offerings which compete for student time. Missouri has recently mandated additional secondary requirements in math and science without raising fine arts credits. This has …

An Investigation Of The Competition Between Surface/Internal Latent-Image Formation In Agbr Core-Shell Emulsions, A. Gary Difrancesco

Theses

The models for surface /internal latent-image formation by J.F. Hamilton and others were qualitatively investigated. Techniques were also developed to precipitate core-shell emulsions. Although the emulsion precipitation system employed was not highly stable, the major aspects of surface/ internal latent-image competition were successfully demonstrated. It was found that the level of surface /internal latent-image competition has a significant effect on the photographic response of core-shell emulsions.

Ektachem Evaluation, Barbara A. Meiklejohn

Theses

The Eastman Kodak Ektachem 400 Analyzer was evaluated in terms of its precision, linearity, accuracy, and interferences for two colorimetric tests (neonatal bilirubin and albumin), a two point rate colorimetric test (amylase), and four potentiometric tests (sodium, potassium, chloride and carbon dioxide). The precision study results obtained were comparable to those of other laboratory instruments for five of the seven tests under consideration. The exceptions were carbon dioxide at the high range (30 mmol/L) and albumin at the low range (2 g/dl). Linearity checks were satisfactory for all seven tests but albumin, where a negative bias was observed in readings …

Planpert - An Expert System For Administrative Planning, Dershya Song

Theses

Not provided.