Digital Commons Network^™

The Production Of Custom Variable Neutral Density Filters Using Film And A Computer Controlled Imaging Device, Gregory A. Hermanson

Theses

A system for generating custom variable neutral density filters has been built, characterized, and demonstrated. The desired densities for a neutral density filter are entered into the controlling computer as a function of distance. The program which generates the filter density profile is designed to vary the exposure time by controlling the velocity of the film as it moves under a slit aperture. A custom illumination system was designed and built to provide constant lamp output. The technique can provide the film with the exposure necessary to produce a given density profile.

Mobile Telephone System And Non-Wire Line Network, Daniel Chi Man Cheung

Theses

The need to communicate with non-fixed points without the use of wires led to the development of mobile telephone systems in the early 1920's. Since then, the expanding need for mobile phone service and resulting growth have led to the development of the Advanced Mobile Phone Service (AMPS) by the Bell System. This thesis describes the AMPS system and explains how service is provided to mobile units roaming in a typical area of up to 25 square miles. A network is proposed to interconnect service areas to expand the coverage to a much larger geographic area. Efficient use is made …

An Examination Of Ink Smoothing In A Web-Offset Printing Press, James M. Salacain

Theses

A study was initiated which was designed to examine the systems used for ink smoothing in a web-offset printing press. The study evaluated several oscillating roller systems and subjectively compared them using several criteria. It was found that although some of the systems possessed a number of desirable characteristics, none were of high enough overall quality to be considered for implementation.

Reflections From A Soul Of Glass, Mills Lyon

Theses

I have long had a "love-affair" with photography. As a teacher of photography and a "semi-professional" photographer, I desired to further my study of photography by seeking a master's degree in this field. In so doing, I have had many opportunities to examine my feelings toward this subject and my relationship with it.

The purpose of this paper is to explore both my technical and aesthetic relationships with photography. In examining these two areas, I have also looked at my photographic past as well as the photographic involvement in my present way of living.

In Chapter One I examine what …

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

Contrasts In Management And Productivity Between The Japanese And American Systems; (What Can And What Is Being Done), Jim Venables

Theses

This paper, "Contrasts in Management and Productivity Between the Japanese and American Systems; (What Can and What Is Being Done)" by Jim Venables, provides a comprehensive comparative analysis of Japanese and American management styles, highlighting their impact on productivity, corporate culture, and organizational effectiveness. Beginning with Japan’s post-World War II industrial ascent, the study attributes much of the nation's economic success to superior managerial practices rather than external factors such as labor costs or resources. The paper juxtaposes two corporate giants—Matsushita Electric (Panasonic) and International Telephone & Telegraph (ITT)—as representative models of their respective systems.

The Japanese model, exemplified by …

Mil-Std-1772 Certification Requirements, Edgar Allen Wright

Theses

This thesis explores the establishment, purpose, and implications of MIL-STD-1772, a military standard developed to certify hybrid microcircuit facilities and fabrication lines. The standard emerged in response to inconsistencies and reliability concerns in military-grade hybrid microcircuit production, aiming to unify audit and certification procedures across the defense sector. Developed in conjunction with significant revisions to MIL-M-38510 and MIL-STD-883, MIL-STD-1772 marks a major shift from product-based to process-based certification, emphasizing consistent manufacturing quality over one-time inspection results.

The work outlines the rationale and development history of MIL-STD-1772, detailing the joint efforts of government agencies, industry representatives, and standardization councils. It also …

Kiss Me Kate: The Costume Design Process And The Costuming Problems In The Small Costume Shop, Carlene N.(Niki) Juncker

Theses

In my process of choosing the culminating project for the MFA degree, I originally planned two such projects: a production's costumes in performance presentation and a draft for a tentatively titled "The Art and Craft of Costume Design." Shortly after this decision, the well known designer-costumers, Liz Covey and Rosemary Ingram, published The Costume Designer's Handbook. This book quite adequately covered the material I had planned to include in my projected volume. I then reconsidered my projects and eventually decided to combine my ideas into one two-fold project: a thesis covering all the problems of design and execution of the …

At&T Technologies' Marketing Philosophy: The Impact Divestiture Had Upon It, Cynthia Gerard

Theses

The marketing mindset at AT&T Technologies , Inc.-does one exist? This thesis is prepared by a Lindenwood College student and employee of AT&T Technologies, Inc. inspired by t he academic excellence challenge as well as established professional career objectives. The goal of this thesis is to analyze the marketing efforts instituted at this Company.

The literature utilized in conjunction with this research was derived from published material. This was done to preserve the integrity and proprietary needs of such a business . Any recommendations, analysis, and conclusions are made from the basis of this author acting in a consulting capacity. …

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.

Planpert - An Expert System For Administrative Planning, Dershya Song

Theses

Not provided.

Design And Implementation Of A Communications Package To Network A Group Of Microcomputers, Narayan J. Kulkarni

Theses

With the development of VLSI technology, more and more desktop computers are coming into the marketplace. A need is often felt to network these computers together to share their resources for a larger application where the data needs to be interchanged between these computers. This thesis work is an attempt to design and implement a communications package that allows various desk-top computers to communicate between each other by exchanging data between them. The computers in this network send data to each other through a central message server. Physical medium of communication between these systems is standard RS-232C communication lines. The …

Mathematical Modeling Of The Nikon Lampas Reflection Measuring Microscope, William O. Bennett

Theses

A mathematical model of the Nikon Lampas Reflection Measuring Microscope for the fine-line lithography in integrated circuit manufacture has been developed. Optical intensity profiles of a perfect line were computed using computer software supplied by the National Bureau of Standards. The programs were modified for the Lampas microscope. From line profiles, the accuracy of the microscope was calculated. The microscope is accurate down to 6/10 of a micron. All lines below 6/10 of a micron were unresolved.

Comparison Of Existing Linewideth Measuring Systems To An Experimental Unit That Enables Minimization Of Vibration During Measurement, James G. De Witt

Theses

An experimental unit was built to minimize vibration during measurement of linewidths on integrated circuit photomasks. Linewidths in the range of 0.522 microns to 12.076 microns were measured with the Nikon LASER scanning system. Optical Specialties Inc. VLS-I video system, Nikon Micro Pattern Analyzer slit-scanning system, and the experimental unit. Average variances of 0.0096, 0.0164, 0.0377, and 0.3627 were calculated for each system respectively. The variances were compared using an F-test with the result that each system was significantly different for each linewidth. A mathematical model was derived to predict the smallest resolvable detail given the frequency and amplitude of …

Container Forms, Deborah W. Pratt

Theses

Not Included

High Performance Displacement Chromatography Of Estrodial Analogs, David Minicuci

Theses

A normal phase semi-preparative scale separation of the estradiol analogs 17-<*-propenyl-3 , 17^-estradiol and 17-*-propenyl-^-estradiol-3-acetate was carried out using High Performance Dicplacement Chromatography (HPDC). Two conventional analytical (10 urn, 4.6 x 250 mm, silica) columns were utilized in series for the semi-preparative system. The displacer used was triethanol amine in chloroform, 10% v/v. A total of 169.8 milligrams of the estradiol analogs were separated and collected in their form from the column effluent. The HPDC runs were monitored using thin layer chromatography (silica TLC) . The displacement fractions were analyzed using HPLC in linear elution mode. Carrier and displacer solutions were scouted for using silica TLC. Displacement TLC was used to find the proper concentration of displacer. The migration rates of the displacer solution on the TLC plates were compared to that on the column using HPLC in the frontal mode. HPDC proved suitable for the utilization of conventional analytical HPLC instrumenta tion for a semi-preparative scale separation.

Balancing Of The Shaking Force, Shaking Moment, Input Torque And Bearing Forces In Planar Four Bar Linkages, Timothy C. Hewitt

Theses

The theory, development and application of a computer program to balance the combined effects of the shaking force, shaking moment, input torque and individual bearing forces in four bar linkages is presented. The theory assumes the linkage to consist of rigid bodies, and is limited to balancing planar four bar linkages other than sliders. Balancing is accomplished using circular counterweights which are tangentially attached to the bearing joints. Counterweight sizes and locations are determined using nonlinear programming techniques where an objective function, dependent upon all the kinetic parameters, is minimized. The balancing program is capable of performing diverse functions. The …

Development Of Dynamic Testing Machine For Laboratory Modeling Of The Rock Fracturing Phenomenon, Mohammad Ali Moghaddass Zadeh Kermani

Theses

The purpose of this thesis is to develop a dynamic testing machine for laboratory modeling of the rock fracturing phenomenon. Bearing stratum fracturing is a construction difficulty which occurs when end-bearing piles are driven to weak rock or weathered sound rock. It is a pile group effect and can result in significantly less pile carrying capacity than the final driving resistance would normally indicate.

A linear scaling factor was derived to establish similitude between the laboratory apparatus and field conditions. This scaling factor is approximate and was used for overall sizing of the apparatus and its components. A more exact …

Non-Linear Principal Component Analysis (Approximation By A Second-Order Taylor Series), John Viggiano

Theses

Linear Principal Component Analysis (LPCA) has been applied in multivariate analysis because of its many optimality properties. However, when applied to locate singularities in a set of data, LPCA is only able to locate linear singularities. If the problem being considered tends to produce variables with non-linear relationships, such as with non-linear regression, LPCA is necessarily of limited utility in identifying singularities. Non-linear generalizations of PCA have been suggested in the literature. Essentially, these involve augmenting the data with higher-order terms, in particular square and cross product terms, and running a LPCA on the augmented data set. The problem with …

Stress In The Alveolar Bone Surrounding A Dental Implant, Jagmohan Singh Kohli

Theses

The purpose of this study is to find the stresses developed in mandibular bone due to the occlusal loading of oral endosseous blade implants. Previous work done in this area was based on the theory of "Beam on Elastic Foundation". As the width/length ratio employed is approximately 0.65, the theory of "Plate on Elastic Foundation" used in this thesis is more appropriate. The mandibular bone acts as the foundation supporting the endosseous implants.

The analysis is complicated by the fact that the implants are irregular plates of varying thickness, the foundation modulus is a variable and the occlusal loading is …

An Airborne Thermal Remote Sensing Calibration Technique, I. D. Macleod

Theses

A calibration technique for airborne thermal remote sensing systems without the requirement for ground truth or multiple altitude measure ments is developed and evaluated. This technique is based on vertical and offset look angles and in effect corrects for image degradation due to atmospheric effects . The results were evaluated by comparison to a multiple altitude regression technique using previously generated imagery, and by statistical methods, including an error analysis. Assuming that the multiple altitude regression technique was exact, the error on apparent temperature produced by this angular technique was 0.32C.

Computer Aided Design Of Optimum Structures, Sanjay M. Alexander

Theses

Techniques for the improvement of procedures for large scale structural synthesis are investigated. Considerable amount of research has been devoted to structural optimization. Yet as developments continue in this area, constant improvements in structural analysis methods, most of which are computationally demanding, tax the ability of existing optimization procedures to use the most powerful of the new analysis techniques effectively. This thesis presents optimization of structures modeled by classical discretized finite elements using the direct stiffness approach. The technioue presented here utilizes a Mathematical Programming (MP) method, which is based on Zoutendijk's feasible Direction Finding Problem (DFP). Modifications on Zoutendijk's …

Management Concept For Consumer Services Via Microprocessor Systems, Thomas William Bradshaw

Theses

With the proliferation of home computers and the subsequent ability to communicate with retail establishments, an opportunity exists for alternative delivery of goods and products to residential consumers. This paper explores the establishment, management, and problems associated with these burgeoning enterprizes.

Presently, there are several technologies and market strategies under devlopment which stress the convenience of making purchases. In addition to home computers there are other communication networks using different protocols such as videotext which consists of several arrangements of text and graphical protocols. In addition there are several mediums like cable and videotext by which product information can be …

A Method For The Identification Of Parameters In Nonlinear Time-Varying Discrete Systems, Somo Coulibaly

Theses

The purpose of this thesis is to present a new technique for estimating the unknown parameters of nonlinear discrete time-varying systems.

The method is based on the model-reference control system where the model and the plant are controlled to exhibit the same output trajectory. The model is chosen to be linear and stationary. To develop the procedure of identification we assume that the structure of the nonlinear system is known and all the measurements are free of noise. A feedback input is adapted to improve the scheme. This scheme can be used to simultaneously identify the parameters when the control …

Correlation Of Dissolved Oxygen With Flowrate And Water Temperature In The Passaic River Basin, Shan-Pei Fanchiang

Theses

Passaic River water is utilized by a number of major water purveyors in New Jersey. They are the North Jersey Water Supply District Commission, the city of Jersey City, the city of Newark, the Commonwealth Water Company, and the Passaic Valley Water Commission (i.e. PVWC).

Since all are interrelated in that the demands and releases of each affect the other, there is an interest in insuring sufficient water to maintain adequate water quality for the last user on the line (i.e. PVWC) who draws water close to Little Falls.

Having daily data of flowrate, water temperature and dissolved oxygen in …

Synthesis Of Trimethylpropane-Tolylene-2,4-Diisocyanate Adduct And Its Blocked Monomers, Farhad Forohar

Theses

A trimethylolpropane adduct of tolylene-2,4-diisocyanate (TMP-TDI) was prepared by reaction in a heterogeneous solvent system. The isocyanate functional groups of the TMP-TDI adduct were blocked with the following blocking agents: p-cresol, eugenol, o-chlorophenol, and one to one mole ratio of mixtures of 2-hydroxyethyl methacrylate (HEMA) and each of the three preceding blocking agents. A sample of TMP-TDI adduct blocked with only HEMA was also prepared. The products were characterized by melting point, infrared spectroscopy, and elemental analysis. Monomers of TMP-TDI blocked with 50% HEMA and 50% blocking agents may be very useful as dental restorative materials.

Microbial Characteristics Of An Activated Sludge And Three Commercial Preparations After Exposure To Phenolics, Laurie Gneiding

Theses

The biological characteristics of four microbial mixtures were examined after successive exposure to phenol and 2-chlorophenol at room temperature. One of the microbial mixtures was an activated sludge from the Livingston, NJ municipal wastewater treatment plant. The other three mixtures were commercial preparations sold by Polybac Corp.(Hydrobac), Sybron Corp. (BI-CHEM DC 1006/1007), and General Environmental Sciences(LLMO).

The characteristics examined were relative counts and species of gram negative/gram positive bacteria, yeast and fungi, protozoa, and higher organisms. For the gram negative bacteria and yeasts, culturing techniques and diagnostic tubes were used to determine the predominant species. Biochemical tests were done on …

Stability Of Bicomponet Polymeric Liquids In Poiseuille Flow, Chin-Chang Jeng

Theses

Polymer processing, involving two or more components, has become more popular recently in industrial plants. However, product Quality is affected very much by the fluid stability. Some theoretical and experimental results concerning Newtonian and non-Newtonian flow in rectangular coordinates, have been published, and the fluid-fluid interfaces were observed to be unstable by some researchers.

In this paper, the linear stability of bicomponent non-Newtonian fluids flowing in a cylindrical tube was investigated by using the Ellis model. Only the very long wave and the axisymmetric disturbances were considered. The Ellis zero-shear-rate viscosity ratio, m( = η02 / η01 )destabilizing. The half-zero-shear-rate-viscosity …

A Comparison Of The Biodegradation Of Nitrobenzene, 1-Butanol, And 2,4-Dichlorphenoxyacetic Acid Using A Municipal Mixed Liquor And Three Commercial Bacterial Preparations, Salvatore P. Salerno

Theses

The biological degradation of nitrobenzene, 1-butanol, and 2,4-dichlorophenoxyacetic acid (2,4-D) was studied in aerated 6 liter batch reactors using activated sludge from the Livingston, NJ wastewater treatment plant-- by itself and in a 10:1 by volume mixture with each of three commercial bacterial preparations: Hydrobac, BI-CHEM DC-1006/7, and Liquid Live Microorganisms (LLMO). Air stripping and adsorption were determined to be insignificant removal mechanisms for the three compounds studied. None of the bacterial mixtures were able to degrade 10 ppm nitrobenzene to any significant extent. A small but noticeable improvement in degradation rates occurred when the Livingston sludge was mixed with …

X-Ray Fluorescence Spectroscopic Analysis Of Coal Ash, George Patrick Watson

Theses

Several coal ashes and prepared mixtures were analyzed by x-ray fluorescence spectroscopy. Various techniques were studied to determine the most reliable procedure for quantitatively estimating, from fluorescent peak intensities, the concentrations of seven major oxides typically present in the ash. These ashes were analyzed with only minimal sample preparation. In order to determine the self-consistency of the procedure, several mixtures of known composition were prepared containing the major elements present in an ash.

Because of inter-element absorption and enhancement effects, several computational techniques were used to calculate composition from spectrum peak intensities. The method that yielded the most accurate estimates …