Digital Commons Network^™

The Determination Of Using The Standard Screening Angles When Printing With 400-Count Anilox Rolls And 100 Line Images Via Flexography, John Ahrens

Theses

From the pioneering efforts of the early 1960 's, flexography has shown steady progress in the development of four color process printing. However, the ability to consistently produce it is limited to an elite group. The vast majority of companies have yet to competitively enter this demanding area of printing. For these companies the time, expense, and expertise required to conduct an indepth study is a major deterrent. Outside information must be made available to aid the companies. The FTA and its members have greatly contributed by publishing an array of information; although, some basic questions have yet to be …

Design And Production Of A Comprehensive Graininess Scale For Use In Electrophotography, Susan B. Mueller

Theses

Methods were investigated and modeled to produce a graininess by density sample matrix. The graininess values were based on a model derived for certain imaging processes that has a high correlation to the subjective impression of graininess for nominally uniform image areas. After modeling several processes, a photographic technique was chosen and a matrix manufactured.

Instituting Management Changes Through Decentralized Budgeting In A Public Mental Health Setting, Wesley E. Wilber

Theses

This study examines the adoption and implementation of a decentralized budgeting model within a public mental‑health institution, focusing on the administrative, financial, and organizational consequences of shifting from a centrally controlled budget framework toward local unit responsibility. Drawing on archival records, budget data, and administrative narratives from the institution’s transition period, the analysis highlights how decentralization altered decision‑making dynamics, cost behaviour, service orientation, and internal accountability structures. The decentralization initiative empowered individual units by giving them budgetary control over expenditures previously managed at the centralized level, thereby increasing their autonomy over staffing, program purchases, and resource reallocation. This shift brought …

Recognitions, Elaine Matczak

Theses

None provided.

Influence Of First Developer Solvent Levels On The Information Storage Capacity Of Negative And Reversal Images, Wendy R. Harrison

Theses

Silver halide solvents are commonly used in the first developer of a reversal process to obtain brighter highlights and a higher effective speed. An investigation was carried out to determine the effect of a low and high level of solvent on the sensitometric char acteristics as well as the covering power, granularity, modulation transfer function (MTF) and the information storage capacity of Plus-X reversal film 7276. The investigation was designed such that the only variable in the systems studied was the first developer. D-67, i.e., D-19 containing two grams liter^-1 of potassium thiocyanate, was chosen as the high solvent first …

Temperature Dependency Of The Group Interaction Parameters In The Agsm And Unifac Models For The Prediction Of Heats Of Mixing, Ignatius Okoronkwo Ojini

Theses

A four-parameter group-contribution model (UNIFAC) has been developed for the prediction of heats of mixing of non-electrolyte mixtures. Both the UNIFAC and AGSM models are evaluated over a wide range of temperature dependencies of the group interaction parameters. The UNIFAC model has been chosen over the AGSM model and an optimum parameter-temperature relationship has been established.

Adopting the optimum temperature dependency, group inter-action parameters have been calculated using UNIFAC for the prediction of four types of mixtures: n-Alcohols/n-Alkanes; Benzene/n-Alkanes; Nitriles/n-Alkanes; Amines/n-Alkanes.

An Experimental Study Of Photopolymerization In A Continuous Stirred Tank Reactor, Songvit Setthachayanon

Theses

An experimental study was carried out on the control of CSTR by on-off regulation of light intensity for the photo-sensitized polymerization of styrene. The controllability of the reaction temperature, the advantages of operating at metastable states, and the molecular weights of the polymer formed were discussed. The influence of feed temperatures, sensitizer concentrations, and residence times on the reactor performance characteristics were also discussed. Experimental results showed that polymer formed at the metastable state had a higher average chain length and narrower molecular weight distribution than that formed at the low stable state. While increasing the residence time shifted the …

A Microprocessor Based Digital Logic Simulator, Kevin Dresher

Theses

It is the intent of this thesis to acquaint the reader with a tool which is available for use in the digital circuit design field. The reader is now able to totally simulate via DLS the digital logic design he creates on paper before it ever takes a hardware form. The computer program accepts a detailed description of the schematic and creates timing diagrams, loading statistics, cross references, and various lists for future documentation.

The user needs no programming knowledge and will find the requirements to run a simulation with DLS extremely user oriented. The simulation descriptions and command language …

Transient Phenomena Of Polymer : Aniline-Formaldehyde Fiber And Copolymer Aniline-Phenol-Formaldehyde Fiber, Ing-On Vibulbhan-Watts

Theses

The rotational viscometer which had a uniform stress, designed by Dr. W. Philippoff was used for measuring the viscosities of 6% L-200 in PRIMOL 355 and Lekutherm x-30. Viscosities of 6% L-200 in PRIMOL 355 (polyisobutylene) was measured to check the change of material that was left in the visometer for almost two years. The result showed that the new viscosities are higher than the older results.

The Characterization Of The Oxygen Transfer Capabilities Of Fermentors, Joseph Stephen Adamca

Theses

A method of characterizing the oxygen mass transfer capabilities of fermentors was developed where volumetric oxygen mass transfer coefficients are obtained using a modified sulfite oxidation method in conjunction with on line digital data processing. Carboxymethylcellulose is used in the reaction media to simulate the viscosity of typical non-Newtonian fermentation broths. Using this method, instantaneous values of volumetric oxygen mass transfer coefficients can be obtained for various combinations of agitation and airflow rates in different fermentor configurations. This data is useful in the scale up or scale down of fermentors.

Data obtained using this method have revealed that for a …

Impingement Of An Axi-Symmetric Jet On A Flat Surface, Amir J. Daibes

Theses

An incompressible, inviscid irrotational flow model was used to represent the normal impingement of a circular axisymmetric jet upon a flat plate. An analytical investigation was conducted to determine the free surface of the jet and the solution of the potential flow problem was obtained using finite difference techniques for jet height-to-nozzle radius ratio of 2.4.

The velocity and pressure distributions at the plate surface and along the jet centerline were obtained.

The results from the finite difference solution are in close agreement with other most recent results from available experimental, and approximate solutions to the potential flow problem.

Color, Raku, And Three Dimensional Space, Barry Kishpaugh

Theses

None provided.

Plate Stability In Screenless Printing, Stephen E. Martin

Theses

Lithography in the minds of most people is a method of reproducing a photograph or artwork by means of a halftone screen. The screen, usually no finer than 400 lines per inch reproduces the image by varying degrees of density through control of the dot size. With screenless printing the image is reproduced without the screen, resulting in much better detail. The purpose of this thesis is to determine what type of plate material will work best with the "Association Product Coating", since the ST Sumner Williams plate that worked well with this coating is no longer produced. The criterion …

Do Structured Preschool Programs Enhance A Child's Learning Potential In Kindergarten?, Jacqueline Ordelheide

Theses

This paper concentrates on whether structured preschool programs enhance a child's learning potential in kindergarten. Through research this writer will attempt to find out if the child who attends a structured preschool program will score significantly higher on standardized readiness tests than t hose who have only training by parents in the home.

Included in this paper the researcher has a historical review of preschool education, preschool information of structured and unstructured curriculum, parental involvement in preschools, various researchers' opinions of preschool education, and the pro and con of preschool education.

The method used to determine if children who have …

Curriculum For A Course In Community Conflict Resolution, Judy Maschan

Theses

Unavailable.

Creative Evolution From Matthew Arnold To The Post-Moderns, Thomas B, Burkemper

Theses

Not available.

Identifying The Gifted And Talented Students In The Primary Grades, Janice M. Holtmeyer

Theses

This researcher has been interested in the gifted student for some time and has always felt a little uneasy about the fact that so many times these students become bored with school. The work is too easy and there is no challenge for them. So the purpose in doing this study was to find answers to some questions such as : 1 ) Who are the gifted? 2) How do you identify these students? 3) In what kind of program should a gifted student be placed? and 4) Will the student benefit from an individualized program? These questions are answered …

Management Assistance For Nonprofit Organizations: Observations And Strategies On Utilizing Volunteer Consultants From For-Profit Enterprise, Daniel Henroid

Theses

Unavailable.

Touching In The Psychotherapeutic Encounter, Kim Glaser Selbert

Theses

This thesis explores the role of physical touch as an adjunct to psychotherapy, analyzing both its therapeutic benefits and potential risks. Touch, defined in this study as physical contact including handshakes, touches on the arm or shoulder, hugs, kisses, and massage, is considered a fundamental human need and communication tool that extends across cultures and species. Drawing from psychological literature, developmental research, and the history of therapeutic practice, the study traces how touch has evolved in psychotherapy—from pre-Freudian physical treatments to Freud's rejection of touch in favor of neutrality, and to contemporary views that embrace limited, intentional touch as therapeutic. …

The Voyage Of Consciousness In People, Deborah M. Rogers

Theses

The Voyage of Consciousness in People explores the complex, layered development of human consciousness through a psychological and spiritual framework rooted in transpersonal and yogic traditions. Deborah M. Rogers presents consciousness as a dynamic process, best understood as a "voyage" through a spectrum of internal experiences and developmental stages. Drawing heavily on Eastern philosophy—particularly the chakra system of Tantric Yoga—she maps human awareness across seven levels: Physical, Affect, Effect, Mental, Ego, Transpersonal, and Pure Consciousness. Each level correlates with one of the seven major chakras and includes a progression through seven depths or "bands" of consciousness, adapted from Ken Wilber’s …

Modification Of An Automatic Photographic Exposure System, To Correct For Light Source Color-Temperature Variation, Jay Agular

Theses

An attempt was made to correct the spectral sensitivity of a silicon photodiode, by using optical filters, to match the spectral sensitivity of Kodalith ortho film, type 3, 2556, and Kodalith pan film, 2568, respectively. The correction would allow the diode to be used with a light-integrator and light source of varying spectral power distribution, when these films are used. A Corning 978 2 blue/green filter was used for the ortho film and an O.C.L.I. detector trimmer, was used for the pan film. Through experimentation and statistical analysis, it was found that there was 100% correction of the photodiode spectral …

A Tone Reproduction Study Of A Digital Image Processing System, Gerald Kashtan

Theses

Photographic tone reproduction analysis was applied to a digital image processing system (DIPS) . The problem was to calculate computer mapping functions for the DIPS that would cause input scenes to be reproduced having Clark's tone reproduction characteristics. Using the graphical method of a Jones Diagram, unique computer mapping functions were constructed for four images processed by the DIPS. After processing the imagery in the computer, the pixels were reconstructed into photographic transparencies for projection in a specially designed projection area. The results of this work concluded that tone reproduction analysis is useful in studying the macro effect of luminance …

The Design And Construction Of An Exposure Meter For Use With Infrared Sensitized Film, James A. Fitz

Theses

In this project, an exposure meter which is sensitive to, and calibrated for infrared radiation was designed and constructed. An EG&G SGD-100A silicon photodiode was chosen to use as the photodetector. This choice was based on cost, availability, ruggedness, stability, and sensitivity. A circuit using an operational amplifier to amplify the output of the photodetector was used. The circuit design allowed easy variation of the signal gain to give a detectable meter deflection under varying lighting conditions. Five different gains were used to allow use of the meter under conditions ranging from outside under direct sunlight, to inside with typical …

An Investigation On The Applicability Of Multi-Microprocessing In The Two Dimensional Digital Filtering Problem, Timothy J. Whitcher

Theses

Digital image processing has been receiving an increasing amount of development in recent years, largely because high speed digital com puters are becoming readily available. In addition, the advent of the microprocessor has revolutionized the capabilities of compact electronic systems. This thesis examines the applicability of microprocessors to digital image processing. Using a Z8000 microprocessor as a baseline, the computation time for a two-dimensional fast Fourier transform is estimated for various microprocessor architectures. These results are later compared to the manufacturer's specified computation times on a Floating Point. Systems AP-120B Array Processor.

Little Italy, Antonio Toscano

Theses

None provided.

Modification Of The Kenworthy Snorkel Camera System, Lewis Brown Jr.

Theses

The Kenworthy Snorkel Camera System is a "periscope" type of lens system designed for use in cinematography. Its primary applications are in the photographing of small scale models and in close-up work. Since its introduction in 1967, the system has been used extensively for these purposes, and has been especially useful in advertising work. It was hypothesised that the system could be modified without any loss in image quality by changing the relay system from a single relay lens to a telecentric relay system composed of two equal focal length lenses. A diaphragm could also be added to the system …

Comparison Of The Derivative-Transform Edge Gradient Analysis Technique To Tatian's Method Of Edge Gradient Analysis, Varying Random Noise, Truncation Interval And Sampling Internal On Analytical Edges, Robert Laflesh

Theses

The following work has been computer simulated. A cumulative gaussian step response and the step response of a photographic emulsion 1 were taken through the derivative-transform edge gradient analysis technique and Tatian's method of analysis. Random noise levels, truncation intervals and sampling intervals on the analytic edges were varied to determine their influence on each technique. The variance and means of the calculated m.T.F.s were then statistically tested for no difference of the two techniques. The exact noise free M.T.F. was also calculated and compared to the M.T.F.s calculated by the two techniques. The results show a statistical difference in …

The Intuitive And The Rational, Julie Benjamin

Theses

None provided.

Art: Object, Process, And Reflection, Edward Lind

Theses

None provided.

Widestock Exposure Modification, Kurt D. Roberts

Theses

A system exists for the exposure of large pieces of sensitized material. The strips are exposed, processed, and viewed by transmitted light. This procedure is used to gauge the quality of the film coating process. There are three problems with the existing system: uneven illumination, the timers do not take into account light decay, and finally, the operators, on occasion, set up the wrong conditions for an exposure. The purpose of this thesis is to modify an existing process for the automated exposure of wide stock strips. These modifications are to replace the system's components with state of the art, …