Digital Commons Network^™

An Investigation Of The Fog Problem In Autoradiographic Intensification Method, Lawrence Wheaton

Theses

Methods of decreasing the fog density level in an autoradiographically intensified image were investigated. The methods included a more proportional conversion of silver to silver sulfide, decreasing the amount of fog silver in the original image, and minimizing the formation of fog in the original image. Thirty percent exposures of an aluminum 11 step wedge and a lead resolution target were made using Kodak film type XG-1. The underexposed films were either developed in the Kodak RP X-Omat processor or manually developed. All the films were radioactivated in an alkaline solution of sulfur-35 thiourea for 30 minutes. The activated films …

The Grid: Toward A Design Methodology, Robert Shaffer Kerr

Theses

None provided.

Curriculum Evaluation For Graphic Arts In Secondary Education In The Monroe County Area Of New York State, David S. Norton

Theses

None provided.

Multi-Hospital Groups, Ronald E. Huber

Theses

Unavailable.

A Survey Of Radiographic Films To Determine Autoradiographic Image Intensification Capabilities, John Ross

Theses

A survey of radiographic films to establish the best donor/receiver combination for use in the autoradiographic image intensification technique was studied. Underexposed images of a 16 step aluminum wedge and a resolution target were made with Kodak film types XG-1, XL-5, XV-2, NMC or DuPont Cronex film. The underexposed, developed and processed films were treated in a subtractive photographic reducer (mixture of potassium ferricyanide and sodium thiosulfate) prior to radioactivation with an alkaline solution of sulfur-35 thiourea. Autoradiographs of the radioactivated films were made. Both qualitative and quantitative evaluations of the intensified images and their corresponding characteristic D-Log Rel. H …

The Effect Of Development Temperature On Kodak Pr 10 Instant Print Product Using A Comparative System Modulation Transfer Function For Analysis, Jon E. Van Tassell

Theses

The effects of temperature of development upon the final image quality of Kodak PR lOr were investigated. Image quality was defined as a Modulation Transfer Function obtained using a Square Wave Log Periodic target for quantitative analysis. Analysis of Variance tables were used to separate experimental error from actual temperature related variability. With a confidence level of 99% the temperature of development was found to affect the Modulation Transfer Function of this product. With temperatures below 48 degrees the effect was greater than with temperatures above 78 degrees but not greater than 90 degrees. Also documented was a decrease in …

Gwunder, Martin Gasser

Theses

This is the written report of a thesis project which was done in the form of a book. This book was produced as a dummy consisting of fifty-five double pages (spreads). The book was planned and executed in all details and it is ready to be printed. The visual part includes a number of photo-sequences: seventy-seven black and white photographs and five postcards. Within these series of images are sequences of seven Swiss poems, seven exerpts from American TV commercials, seven Malay proverbs, seven quotations from the MFA Handbook, passages from seven books dealing with different concepts of photography and …

Trees, Stephen Small

Theses

None provided.

Spatial Frequency Processing In The Human Visual System: A Study Of Black Versus White, Robert Seyfert

Theses

The human visual system responses to resolution targets whose small area spatial content has been altered from white to black has been investigated. Modified tri-bar targets were presented to observers on a rear projection screen at constant average luminance and varying levels of contrast. Each observer was asked to determine if he could see the target and if the target had been modified. Responses indicate that there is no difference in the visibility of targets in which small areas have been changed to white or black but whose spatial frequency content is the same.

Light Scattering In Unprocessed Photographic Emulsions, Jo S. Kirkenaer

Theses

A method is proposed to measure scattering characteristics of non-processed photographic emulsions without using expensive or complicated computer processing techniques. A photo goniometer was assembled from a standard spectrometer, a lightsource and a photodiode. Film samples were measured both in air and in an index matching liquid comparing samples of two main categories, continuous tone pictorial emulsions and graphic arts copyfilms. It was learned that the measurements separated the samples into the above mentioned categories based on response variables such as scattergram and its corresponding Fourier Transform. This method is proposed as a tool in emulsion design engineering or quality …

A Business Primer For The Artist/Craftsman, Susan L. Alves

Theses

None provided

Signatures, Beatrice Geller

Theses

None provided.

The Effect Of Emulsion Stabilizers On The Rate Of Solution Of Silver Halide Grains, Christopher L. Dumont

Theses

The effects of the emulsion stabilizers, 4-hydroxy- 6-methyl-l ,33a,7-tetraazaindene and l-phenyl-2-tetrazoline- 5-thione on the rate of solution-physical development of a monodisperse AgBr emulsion containing Carey-Lea silver sol were measured at a series of concentrations. A study of the effects of the silver halide solvent, sulfite has been stud ied along with a low-solvent surface developer. It was found that the tetraazaindene definitely had an effect on the rate of solution-physical development, while the l-phenyl-2- tetrazoline- 5-thione did not have a significant effect.

Relations Between Aggregation State Of Thiacarbocyanine Dyes In Solutions And That Adsorbed On Silver Bromide From There Solutions, Kazuo Kato

Theses

Absorption spectra of two thiacarbocyanine dyes in various solutions which had different aggregation ability of the dyes and reflectance spectra of the dyes adsorbed onto silver bromide grains from those solutions were taken. It could be concluded by comparison of these spectra that there was little or no correlation between state of aggregation of the dye in solution and that on AgBr grains when adsorbed from the solution.

Images In Glass, Douglas Anderson

Theses

The nature of this thesis is to mate creative glass working and imaginative illustration. I intend to use a fictional manuscript and interpret its aesthetic meaning in glass. The glass will take a form similar to painting and drawing creating compositions with emotional intensity- I will use, as needed, all available techniques known to me in glass technology to compose these illustrations. I will present this partnership of glass and illustration in a readable format such as a book.

An Investigation Of A Viscous Lithographic Developer, Thomas Gribb

Theses

The photographic and physical properties of viscous lith developers have been investigated. Developers thickened with hydroxyethylcellulose (Hercules Natrasol 250 HR) afforded the optimum characteristics of ease of mixing and pseudoplastic behavior. Photographically, viscous lith developers demonstrate performance in many ways similar to non-viscous formulas. Characteristically, the developers show great sensitivity to changes in pH, and changes in HQ, bromide, and sulfite concentrations. However, viscous lith developers are inherently 0.2 log H lower in photographic activity than comparable non-viscous developers. Furthermore, viscous developers are characterized by low contrast in highlight (negative) areas of halftone reproduction. Large dot area (90%) images show …

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 …

Vbs Senior Center: A Model, Mental Health Multi-Purpose Storefront Center For The Elderly -A Report, Lyn Levine

Theses

Unavailable.

Use Of Gadolinium In 13c Nmr Studies, Barbara J. Luke

Theses

The addition of the paramagnetic reagents gadolinium(18- crown-6) nitrate, gadolinium(dicyclohexano-18-crown-6) nitrate, and gadolinium nitrate pentahydrate to each of the substrates ethylbenzene, and thymidine has been studied in an attempt to obtain quantitative 13C spectra. These reagents reduce the nuclear Overhauser effect and shorten the spin-lattice relaxation times of the carbons of these substrates.

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 …

Color And The Grid, David Cress

Theses

None provided.

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 …

The Effects Of Concurrent Photon Amplification Utilizing An Infrared Latensification Source, Mitchell D. Feather

Theses

An investigation was conducted regarding the effects of varying supplementary exposure on High eSpeed Infrared Film. In addition, CPA was evaluated in comparison to Hypersensitization and Latensification. The results were that CPA is superadditive with respect to both density and exposure, the maximum effect being noted in the toe of the characteristic curve. Furthermore, Hypersensitization and Latensification , with dark intervals up to five seconds, displayed efficiency that was not significantly different from CPA. It was also determined that the spectral distribution of the imaging source does not affect the efficiency of CPA. Corroboration of C&C Research's speed increase claims …

Color, Raku, And Three Dimensional Space, Barry Kishpaugh

Theses

None provided.

Making And Its Companions In The Visual Arts, Scott Garrison

Theses

None provided.

Rubaiyats, William H. Hubbell

Theses

None provided.

Textile "Floorpieces", Patricia Giordano

Theses

None provided.