Digital Commons Network^™

In-Line Process Monitoring Of Spray Developed Diazoquinone Photoresist, Kenneth Sautter

Theses

As the minimum feature size of IC devices is reduced, the control of linewidth becomes moire and more critical. An in-line process monitor for spray developed diazoquinone-type photoresist has been constructed which enables a spin-developing module to automatically compensate for the numerous variables which can affect linewidths. The development time of a wafer is varied depending on the dissolution rate of the photoresist. Development is monitored by reflecting light from the wafer surface which is sensed by a photodiode. Variable development time has been shown to control linewidths as exposure dose and photoresist coating thickness were changed. The relationship between …

A Study To Eliminate Moire Patterns Produced In Color Separations When Scanning Polachrome Cs Transparency Film On The Hell Dc-300 B/L Laser Scanner, Edwin Parker Price

Theses

The Polaroid Corporation, in May of 1983, introduced Polachrome CS color transparency film and a new process called the Autoprocess system. This system offers the convenience of obtaining instant color transparencies in about three minutes. The film has excellent projection and viewing characteristics. The product was designed to have its largest market with professional photographers. Polachrome's construction creates problems for the printer in that moire patterns occur during the separation process. This study gives a short background for both additive color screen films and dye layer films, and a comparison is made to help the reader understand the problems with …

The Fabrication And Testing Of A Lead Iodide Photovoltaic Cell, Keith Greenberg

Theses

A new type of photovoltaic cell using lead iodide as the photosensitive element and aluminum and silver as electrodes was constructed and then tested for open circuit voltage, monochromatic quantum yield of short circuit current, and fill factor. A similar cell was also fabricated using the familiar merocyanine dye M-8 as the photosensitive element for use in a control experiment. Minimal open circuit voltages of not more than 26 mV were obtained for lead iodide while much larger photovoltaic parameters were obtained for M-8. The poor and impermanent performance of lead iodide relative to the organic control suggests that lead …

Reactions Of Hydrogen With Chloroform And Trichloroethylene At High Temperatures, Burhan Mahmood

Theses

The reactions of chloroform and trichloroethylene with hydrogen in the temperature range 550 to 1000°C were studied using tubular flow reactors of varying diameters. The residence time range was from 0.05 to 3.0 seconds.Two different concentrations of the chlorinated species were used, each with hydrogen in large excess. Flat temperature profiles (+/- 5°C) were achieved over 80 to 85 per cent of the 45 cm long reaction zone, with inlet gases preheated to about 400°C.

No chlorinated hydrocarbons, products or reactants were observed at /above 850°C. The major products at these temperatures were C₂H₂, C_{2 …}

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 …

A Maintenance Program Guide For The Non-Technical Building Manager, Luis M. Tavares

Theses

For the most part, the title of Building Manager is conferred upon an individual who is given the responsibility of services support for a facility. However, this title many times is carried by men/women who are responsible not only for the upkeep of the general building, janitorial, and food services but also for the safekeeping of the building equipment, such as mechanical and electrical machinery. At times, these individuals may be involved with general service responsibilities and tend to lose sight of maintenance needs.

In order for the Building Manager to implement maintenance successfully, he/she must understand the close cooperative …

Comparative Study Of Computational Methods For Kinematics Of Mechanism Analysis, Ren-Jea Wang

Theses

This thesis introduces three numerical methods of solving nonlinear algebraic equations, i.e. Newton's method, Brown's method, and Brent's method, and applies these methods to kinematics of mechanism problems for comparative study.

Firstly, each method is reviewed in some detail. Then experimental computer programs, NABKAP(Nonlinear Algebraic equations Based Kinematic Analysis Programs), are developed based on the above methods and used to solve kinematic of mechanism problems. Example problems include various kinds of four-bar mechanisms and two degree of freedom mechanism. Lastly, each technique is compared with the others based on the above computational experiences.

The FORTRAN programs used for this study …

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 …

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 …

On Circular Hvac Duct Design Through Stress Analysis, Chien-Chung Lee

Theses

In this thesis, comprehensive studies through stress analysis of the circular HVAC ducts are made. The ducts are made of thin gaged steel sheet, and reinforced by stiffeners that are made of hot-rolled steel sections of L or C shapes. The ducts are loaded with pressure, its own weight and the possible seismic accelerations. A comprehensive FORTRAN program is developed as an aid Lo achieving the optimum design of circular ducts, i.e. duct thickness, stiffener spacing, stiffener size and seismic span length, Several stress analysis tables and a design parameter plot arc, provided in this thesis Lo facilitate design optimization.

A Diagnostic Study Of Burning Black Powder Via Stroboscopic Laser Schlieren Photography, Donald Bruce Rowland

Theses

The combustion processes and products of a single grain of burning black powder were experimentally investigated via the stroboscopic laser schlieren photographic technique. A high power modulated argon laser system was used in conjunction with a streak camera to provide a dynamic sequence of time resolved, high resolution schlieren photographs of a burning black powder grain. When black powder burns, a multi-phase product is produced consisting of hot gases, solid particles, and a molten liquid spray. The expansion processes of this multi-phase product cloud were recorded and characterized. Molten drops, reactive and nonreactive particles within as well as outside of …

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 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. …

Conversion And Kinetics In The Reaction Of Chloroform With Water Vapor At High Temperatures, Chii-Guang Hwang

Theses

This is an experimental study on thermolytic reactions of chloroform with excess water vapor where kinetic parameters are determined and complete product analysis made at atmospheric pressure over a temperature range from 550to 1050°C. In this study, water vapor was introduced as a reactant to convert chlorine in chlorocarbons to stable HCl which is an easily neutralized end-product and thereby completely destroy chloroform. Substantial amounts of thermodynamically stable species: HCl, CO, CO₂, C(s) etc. were observed as products.

The reaction was studied in a 46cm tubular flow reactor mounted in a furnace that had three independently temperature-controlled heating …

A Comparison Of The Biodegradation Of Phenol And O-Chlorophenol Using A Municipal Mixed Liquor And Three Commercial Microbial Preparations, Nigel P. Mcmullen

Theses

The biodegradation of phenol and O-chlorophenol was studied in six-liter batch reactors, using a municipal mixed liquor (from the Livingston, NJ treatment plant) that had not previously been exposed to either of the substrates. In addition, three commercial microbial preparations: BI-CHEM (Sybron), Hydrobac (Polybac), and LLMO (General Environmental Science), were tested alone and in combination with the municipal mixed liquor.

It was found that the municipal mixed liquor performed significantly better than any of the commercial preparations by themselves. When the commercial preparations were mixed with the municipal mixed liquor in a ratio of 1:10 it was found that the …

Decoding Daily Life, Howard Granowitz

Theses

None provided.

A Discussion Of My Work, Lynne Hull

Theses

None provided.

Reflection Upon The Intangible Process Of Professional Development In A Graduate Program In Counseling Psychology, Judy Iris Fletcher, Mary Randa Kapp

Theses

The following narrative is a personal account of the experiences, observations, and awarenesses of two students completing their Masters degrees in counseling psychology. It represents an effort to document what we view as an identifiable and stress-producing process of growth occurring within an academic framework. We feel that this duality of personal growth and professional development is inadequately addressed in graduate programs. Yet, we have found this unstated, underlying, and inevitable threat of uncertainty, risk, and change to be as predictable a reality as the theoretical coursework required.

This paper is written not so much to prove a point as …

An Investigation Of The Effects Screen Ruling And Dot Structure Have On Dot Gain On Offset Newsprint, Dawn Link

Theses

Dot gain is an inherent problem in printing on any substrate. Studies have been conducted in an effort to try to isolate the causes of the variables in the printing system to determine their influence on dot gain. The literature indicated some good reasons to suspect that course screen ruling would yield less dot gain than finer screen ruling. Investigations dealing with the effect that screen ruling has on dot gain have not yet been conducted. This study attempts to isolate the screen ruling which can yield the lowest amount of dot gain when printed on newsprint using square, round, …

Analysis Of Current And Future Trends In Synchronization, Deadlock, And Recovery In Distributed Databases, Carmen Ida Joglar

Theses

Not Included

Information Graphics: A Guidebook To Downtown Rochester, New York, Michael Regis Mooney

Theses

Not Included

Computer Generated Graphics Vs. Traditionally Rendered Illustration: A Contrast And Comparison, Nancy J. Oyos

Theses

Not Included

How The Computer Can Aid And Facilitate Traditional Graphic Design Process, Procedure, Methodology, And Curriculum Development: A Videotape Presentation, Mary Jane Lewandowski

Theses

Not Included

Short Time Spectrum Analysis-Synthesis Of Speech, Dusan Vujcic

Theses

This thesis presents an extensive study of the short time spectrum analysis-synthesis of speech. This type of speech processing attempts to synthesize speech without the short time Fourier transform phase information. Several existing analysis-synthesis methods are presented. In addition, five other methods are attempted experimentally. The results of these experiments are explained, identifying some very important properties of the short time spectrum analysis-synthesis. One of the methods was shown to synthesize a high fidelity speech. Finally, a comparison is made between this method and other known methods which are based on short time Fourier transform approach.

The Static Analysis Of A Complex Optical-Mechanical System Utilizing The Finite Element Method, Thaddeus A. Kciuk

Theses

This thesis utilizes the finite element method (MSC/NASTRAN) to perform an analysis on an optical-mechanical laser scanner used in the imaging industry. A Normal Modes analysis was conducted to determine the real eigenvalues and their associated eigenvectors. The results of the analysis (modal frequencies and modal shapes) were then compared with empirical data measured using a FFT (Fast Fourier Transform) analyzer with modal software (Hewlett Packard 5423A Dynamic Signal Analyzer). The dynamic characteristics of the system optical output beam and optical components were evaluated by simulating the optical components using rigid bar elements. A modal frequency response analysis was performed …

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 …

Missouri Challenges, Patsy J. Lilienkamp

Theses

This work was written to present selected portions of Missouri history, using the approach of anecdotal records interspersed with factual material. It focuses on the lives of the common people rather than the usual heroes concentrates on their of daily history books. It lives, their feelings, their beliefs, and their questions and fears.

The information was magazines, newspapers, and Some of the information is gathered personal factual; from books, conversations. some is a collection of happenings and customs which undoubtedly have been altered and amended a s they were handed down through generations.

It is the author's hope that a …

Work Groups As An Aid To Management, John W. Porter

Theses

The work group is an important part of every organization. These groups are important in that they have a definite impact on both the organization and the employees. Every employee is a member of a work group. The employee that is a part of a supervisory unit or an employee in a department is a member of the formal work group. Those employees that share their time on the job with those individuals that they care to be with for reasons other than the organization's design, are members of the informal work group, or clique as it is sometimes called. …

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 …