Digital Commons Network^™

Maldoror, Robert Trussell

Theses

Not provided.

A Guide To The Media Center, Jeffrey Hermann

Theses

Not provided.

The Hydrogen Ion - Bromide Ion Interaction In Photographic Developers, Steven Brainerd

Theses

An investigation has been made on the interaction effect of the hydrogen ion (pH level) and the bromide* ion on the development response variables. A pH range of 8.8 to 11.2 and bromide ion concentration levels of 0.125 to 8.0 grams per liter were used. The hydrogen ion-bromide ion interaction as tested on Kodak film type Fine Grain Release Positive 5302 had a significant effect on the rate of development, gamma, and photographic film speed in buffered metol-hvdroquinone, phenidone-hydroquinone, and hydroquinone sulfite developers. The trend for all developers was a decrease in the effect caused by the bromide ion with …

Effects Of Exposure Changes On Perception Of Detail In Radiography, Warren Meyers Shepard

Theses

Voltage and magnification are the variables of exposure used to investigate the effects upon the detection of lesions on lung tissue of a phantom. Analysis by percent correctness and ANOVA indicate that the voltage and magnification for the levels investigated had no significant effect upon detection accuracy. ROC analysis of the data also show no significant increase in detectability attributed to the variables investigated, The ROC evaluation does indicate a slight increase in detectability of the simulated lesions, while the percent correctness analysis does not. This difference may be due to the bias of the observers and removed by the …

Multispectral Techniques Applied To Photomicrography, William Richard Mueller

Theses

Based upon an objects absorbtion and reflection characteristics to varying amounts of radiation, a series of selective wavelength band exposures were made for color separation of a microscopic specimen. The exposures axe made to record the specimens characteristic transmission or reflection patterns as a visible density value. The exposeures were made in a overlapping band width manner. The exposures were in the blue, green, and red regions of the spectrum. The resultant negetives were printed on Polycontrast paper using filter No. 2. The main purpose of the experiment was the design of a photographic system to remove the biological step …

The Recovery Of Images From X-Ray Fogged Film Using Controlled Diffusion Development, William Jameson

Theses

An, investigation of improving the quality of light formed images uniformly fogged by X-rays was done using Kodak Super-XX film. A viscous developer containing glycerine as a thickening agent was used as the means of obtaining recovery. The results indicate no evidence of image improvement in terms of overall contrast; however, small area contrast was extended to more density levels using the image recovery technique.

Development And Applications Of A Quadratic Isoparametric Finite Element For Axisymmetric Stress And Deflection Analysis, F. X. Janucik

Theses

The theory and computer program for an axisymmetric finite element for static stress and deflection analysis is presented. The element is an eight noded isoparametric quadrilateral based on the displacement method which is capable of representing quadratic variation of element boundaries and displacements. Element stiffness properties are developed for linear elastic small displacement theory using homogeneous isotropic material. Test cases are compared with theoretical solutions from the theory of elasticity to identify program capabilities and limitations. Ability to analyse axisymmetric problems and to represent curved element boundaries has been demonstrated. Example problems including a cylindrical pressure vessel, a disk of …

Design Of A Water Table Analog To Study The Dynamic Forces On Turbine Blades, Nicholas Yobbagy

Theses

This thesis describes the design of a water table analog to simulate and study the parameters associated with non-steady forces on turbine blades. The reasoning used to develop the water table method of analysis is presented, as well as the complete design details. The table has now been constructed to the extent where preliminary data has been generated to substantiate the design given herein.

Density Measurement With Ultraviolet Radiation On Silver Halide Emulsions, Henry Uiga

Theses

Not provided.

Measurement Of Volume Scattering Functions In Turbid Water And Its Correlation With Mtf Degradation, Richard Hart, Michael Mcdonald

Theses

Scattering of light in turbid water is a major source of image degradation. The intention of this experiment was to construct a small angle scattering meter and measure the volume scattering functions for specific turbid conditions. These experimentally derived volume scattering functions were used to correlate a mathematical modulation transfer function derivation with previously measured modulation transfer functions for a specific turbid medium. Due to design shortcomings, errors were produced in the production of the volume scattering functions. This produced a lack of correlation between our mathematically derived MTF's and those measured in the past. The validity of the mathematical …

A Unified Graphic Communications System For The Graphic Arts Research Center, Richard Marciniak

Theses

Not provided.

A Unified Matrix Formulation For The Unbalance Response Of A Flexible Rotor In Fluid-Film Bearings, Charles Thomas Jr

Theses

An analysis and a computer program for determining the steady-state response of a general rotor-bearing system, based on the concept of a dynamic stiffness matrix, are presented in this thesis. The rotor is idealized as an axial assemblage of beam elements that have continuous mass and isotropic, elastic properties. These properties are developed by using the Bernoulli-Euler beam theory equations to form the dynamic stiffness matrix. Transverse shear effects are neglected. Gyroscopic coupling effects, asymmetric linearized bearing properties, and unbalanced loading are represented as optional end effects on the beam elements. The development necessitated the use of complex variables to …

Photocollographic Iron Prints, Albert Lunt

Theses

Not provided.

Relationship Between Image Size And Tone Reproduction Curve, Kenneth Hansen, Robert Pisa

Theses

This project attempts to find a relationship between preferred tone reproduction and image size. Photographic prints with different tone reproduction characteristics were made. The differences were very small but just noticeable. Prints were made in three different sizes and compared to a standard size print by a paired comparison method. Analysis showed that there was no tone reproduction difference in the preferred prints of both smaller and larger sizes.

Modification Of The Inprocess Infrared Densitometer, Ernest Balch, Jeffrey Chan

Theses

A model of an infrared scanning densitometer was constructed using the basic designs developed by Hisler and Casinelli in their 1970 research work, and by Beaupre and Jasper in their 1971 research work, plus several new ideas which greatly improved the reliability and usefulness of the machine. Among the changes were: use of an infrared sensitive photomultiplier tube on recommendation of Hisler and Caslnelli; Z axis modulation for oscilloscope display, a new idea; and addition of a diffuser to illuminate the sample to provide better correlation between wet and dry densities, on recommendation of Dr. Schumann.

The Corporate Identity Game: A Simulation Game Involving Graphic Design Methodology, Alonzo Foster

Theses

None provided.

Size Distribution Analysis Of Polydisperse, Monodisperse, And Chemically Mixed Polymer Latex Systems Via A Combination Of Light Scattering And Ultracentrifugation Techniques, Robert Cembrola

Theses

The use of angular light scattering techniques has proved to be of the highest precision for the size distribution analysis of colloidal size spheres, but is inherently limited to quite narrow, monomodal size distributions of particles of a single chemical component. These limitations can be overcome to a limited degree by a technique that utilizes light scattering and a preparative ultracentrifuge. The latter fractionates the colloidal particles according to density (i.e., chemical com position) and/or size. Applying the zonal ultracentrifugation technique, both types of separation take place in the presence of a density gradient and ultimately fractionated samples are obtained …

Papillomas, Warts, And Related Neoplasms: Forms Of Generative Cancers, Jonathan Atkin

Theses

None provided.

Basketry Sculpture, Laura Glazier

Theses

None provided.

Development Of A Thai Typeface For Photo Lettering Applications, Chow Sornsongkram

Theses

None provided.

Creating Theme Bedspreads Through Loom And Non-Loom Techniques, Cindy Chal

Theses

None provided.

Five Plays, William Roth Ortwein

Theses

None provided.

Biocatalytic Oxidation Of Nitrilotriacetate, Saul Hammerman

Theses

The specific scope of this work is to study the biological and chemical effects of a single genetic strain of bacteria, Bacillus subtilis #9524, on the specific destruction to innocuous products of sodium nitrilotriacetate (NTA) and sodium tripolyphosphate (STPP). Insofar as the same strain of bacteria was used each time, under limited variability and sterile conditions, the side effects of multiple bacterial strains and their inter-relationships among themselves and the organic substrates are eliminated. This has allowed for excellent replication of results.

This is a generalized technique for the evaluation of the biodegradability of a compound. Whereas tests with activated …

Orientation To The Urbanarium, A Slide-Tape Production, Darryl Degelman

Theses

None provided.

Picture Puzzle History, Jane Wattenberg

Theses

None provided.

The Design And Analysis Of A Rapid Transit Speed Regulator, Frank Svet

Theses

A rapid transit speed regulator is examined utilizing classical control theory and digital computer simulation. The transient response to velocity step input commands are examined under constraints placed on percent overshoot, steady state error, acceleration and jerk limiting. The effect of each constraint is examined for various weight trains. A means of loop compensation that will meet the desired design objectives concerning the transient response is then analyzed and simulated. A detailed discussion of both vehicle and motor dynamics is also presented.

Computer Simulation Of A Split Feed Claus Sulfur Recovery Plant, Thomas R. Woolley

Theses

A computer program which calculates a complete heat and material balance around a "split feed" Claus sulfur recovery plant was written in Fortran IV for the RCA Spectra 70 computer. The program provides for up to three catalytic reactors, the hot gas bypass method of reheating, and a feed gas containing hydrogen sulfide, water vapor, hydrogen, and nitrogen. The program user specifies as input data the feed stream composition and temperature, the number of reactors, the combustion air temperature, the conversion in each reactor, the outlet temperature in each condenser, and the fraction of burner exit gas used for reheating …

Premonitions, Samuel Wernick

Theses

None provided.

Graphic Identity Program, Richard Falzoi

Theses

None provided.

Lewis Wickes Hine Memorial Collection: International Museum Of Photography At George Eastman House, Robin Brown

Theses

None provided.