Digital Commons Network^™

Revelations: The Analysis And Synthesis Of Images, Scanlon F.

Theses

Not Included

Minimizing The Effects Of The Relief Image In A Coherent System Through Index Matching, Edward Sklar

Theses

The effect of the relief image in a coherent optical system was minimized by matching the average refractive index of the emulsion ne with that of a liquid of a known refractive index nl. A match of ne and nl was determined by minimizing the intensity of the first side order of the Fraunhofer diffraction pattern of a sine-wave image. A match of ne and nl can be made exactly only when the surface gelatin associated with the silver and the differential tanning effects of development are not present. Under other conditions ne is not homogeneous. The intensity of the …

An Investigation Of Photographic Edges In Determination Of Modulation-Transfer Functions, Walter Gramiak

Theses

An investigation is developed for determining whether certain factors, which are characteristics of a photographic edge, are of significance in the derivation of the modulation transfer function of a system from the edge. Factors investigated were edge spread, density range (contrast), and background density. The experiment was limited as to levels used but it was determined that the edge spread significant and a minimum allowable edge spread was calculated.

Color Monobath Development, John Plumadore

Theses

Not included.

A Sophistication Of The "Effective Exposure" Method Of Compensating For The Chemical Amplification Of The Photographic Emulsion As Applied To The Determination Of The Modulation Transfer Function, Lloyd Leiderman

Theses

Known exposures were impressed upon Panatomic-x film by imaging interferometrically generated cosinusoidal intensity distributions of 24, 64, and 96 cycles per millimeter and micro-character istic curves of the material were constructed.

Revelations: The Analysis And Synthesis Of Images, F. Scanlon

Theses

None provided.

Creation Of An Audio-Slide Presentation For The Promotion Of A Sport Organization, David Saifman

Theses

None provided.

Carburizing Of Steel Using "Cracked" Methane, Robert Alvin Hesse

Theses

An attempt was made to carburize steel using cracked methane, industrial terminology for methane burned in air over a catalyst to give carbon monoxide and hydrogen, as the carburizing agent. Initial tests in a laboratory scale furnace using steel in chip form showed that, the feasibility of this method was excellent. These tests also indicated that a good method of control of the carburizing would be by a system that could measure the dew point of the gases introduced into the furnace. The next step was to apply the method of carburizing to small production size lots of bearing components. …

Melt Rheological Properties Of A Filled Polyethylene, George Lewis Levy

Theses

A procedure was developed to convert shear stress at various melt temperatures into a computed shear stress at a constant temperature in an isothermal system.

The isothermal shear stress was first analyzed at an equilibrium condition before time induced stress reduction for

1) the temperature dependency of shear stress

2) non-newtonian flow behavior

3) a relationship between the independent variables of shear rate, filler concentration and temperature, and shear stress.

A statistical analysis was performed on the data to find an empirical relationship between shear stress and the independent variables, at any time, under stress, for unfilled and filled high …

A Study Of Child Support And Child Custody In Divorce Cases And Separation Cases In Calhoun County, Alabama In 1965, Virginia Hudson Bassett

Theses

The author examines divorce cases in Calhoun County, Alabama, in 1965, with specific attention paid to the aspects of child support and child custody. Primary sources include the Circuit Court and the Juvenile and Domestic Relations Court of Calhoun County.

Flannery O'Connor, Mary H. Ogilvie

Theses

The entire body or Flannery O'Connor's published fiction can be found in two volumes, One, a Signet paperback called Three by Flannery O'Connor, contains her two novels and first short story collection, The other is the posthumous volume of short stories, Everything that Rises Must Converge. Miss O'Connor's work has already been subjected to much critical analysis and will undoubtedly be subjected to a great deal more before there is substantial agreement on just what it is that she is saying. The purpose of this study is to consider her attitude toward her art; to examine her philosophy …

Ceramic Fountains, Tarrant Hookham

Theses

Not Included

Air And Water Pollution: A Visual Communication On Pollution, James Parton

Theses

Not provided.

A Study Of The Low Current Density Electrolysis Of Ammonium Thiosulfate Fixers, John Bowman

Theses

Determinations of the current tolerences of sodium thiosulfate and ammonium thiosulfate fixers are made and compared. The rate of fixation of ammonium thiosulfate fixer before and after electrolysis is studied. The current efficiency of low current density electrolysis in ammonium thiosulfate is found. Causes and forms of sulfiding are discussed and related to the work of the experimenter.

Ph Effects On Fluorescent Fatigue, Donald Miraco, John Pierce

Theses

Fluorescent dyes tend to fatigue when exposed to short wavelength radiation. Since all work is not done at one pH level, it is necessary to know how a change in pH will effect the fluorescing characteristics of a dye. Of particular interest is the effect on fatigue as a function of time. The shift in spectral absorption with varying pH was established for fluorescein dye. Its increase in fluorescing intensity with increasing negative ion concentration was then measured. With increasing exposure time the pH's of 6.0, 8.0, and 10.0 gave indications of fatiguing while the pH's of 2.0 and 4.0 …

The Determination Of A Set Of Alphanumeric Characters Of Equal Recognizability, Keith C. Donaldson, Harry O. Gough

Theses

An experiment is described whose objective was to determine a set of alphanumeric characters of equal recognizability. Constraints were that the characters be similar in aspect ratio to the conventional tri-bar target, i.e., 5:1, and that they and the surround have a low density difference. Such a set is described, together with the experimental technique and data analysis used by the present authors to evaluate the set. At an alpha risk of 0.10 the set of characters E S 2 3 8 9 was found to have equal recognizability under two varied viewing conditions.

Covered Jars, Mary Abella

Theses

Not provided.

Variations In The Spectral Radiometric Function, Measured In The Field, Of Five Different Types Of Terrain As A Function Of Atmospheric Conditions, Solar Altitude, And Viewing Position, Guy Welch

Theses

The purpose of this experiment was to: 1. Determine how closely five different types of terrain, such as sand, cultivated soil, grass, loose rocks, and bushes resembled Lambertian surfaces. 2. Determine how closely the radiometric functions for three wave length bands compared for each type of terrain. 3. Develops the shape of the radiance envelope as defined by the radiometric function for each type of terrain. 4. Determine the effect of changes in solar altitude on the radiometric function. 5. Determine the effect of changing the conditions of irradiance from clear sky to overcast sky on the radiometric function. The …

Post Exposure Latensification Of A Multilayer Color Film, Thomas A. Tietjen

Theses

A uniform secondary exposure of low intensity is made to a normal or underexposed primary latent image for approximately 5-15 minutes, to increase the effective speed index. This is first studied from a white light approach similar to that used in single emulsion negative materials.

In addition, the ability to manipulate and align individual layers by selective filtering was also studied. Red, green and blue filters, matched closely to the spectral sensitivity of each layer, were used separately and conjunctively towards achievement of the desired levels of effective speed, contrast, color balance and maximum density.

Latensification by a secondary white …

An Investigation Of The Mach Phenomenon And Its Relation To Visual Image Evaluation, Norman B. Nill

Theses

The Mach Phenomenon*(as perceived on photographic film) is herein investigated as a function of edge acutance, contrast and illumination level for the purpose of determining its probable effect in the area of visual image evaluation. The results indicate that dark Mach band widths increase as acutance decreases and dark band width is independent of contrast and illumination level while light band widths remain constant, over the ranges investigated. Using these findings as a basis, a dark band width predictor equation was found, taking the form; dark band width (in microns) =K/acutance, when average edge gradient is the measure of acutance. …

A Multi-Exposure, High Resolution Camera For The Production Of A Resolving Power Test Target, With Extended Range, Richard Bergen

Theses

Since 1888, a series of mutually perpendicular lines have been used as a test object for evaluation of optics, systems, products, etc. The availability of such test objects has traditionally been in the frequency range of about one cycle per millimeter to a couple hundred cycles per millimeter. These have been available from a few manufacturers, none of which offers the extended range of .25 cycles per millimeter to greater than one thousand cycles per millimeter proposed in this project. The usefulness of such an extended range serves to make it an all-purpose test target for measurement of enlarging, contact …

Testing The Fisher-Foser Mark-I On-Easel Color Analyzer, C. Donald Fisher, Richard Foser

Theses

It is proposed to test and statistically evaluate the performance of an on-easel color analyzer built by the authors. It is discovered during the testing program that the device is nonfunctional, and the testing program is re-directed toward finding the causes of the instrument mal-function. It is concluded that the particular characteristics of the cadmium sulfide cell employed, and the electronics of the device, introduce non-linearities which make readings non-repeatable. It is nevertheless felt that the concepts involved in the device, and in the testing program as originally envisioned, are sound, and that further development of the device would produce …

Creative Applications Of Photographic Media For Industry And Architecture, Francis Ho

Theses

None provided.

Collage And Relief Painting, Mark Greenlund

Theses

Not Included

Automatic Merchandising, D. Kenneth Winebrenner

Theses

Not provided.

A Collection Of Writings And Line Drawings, Bonnie Kimpland

Theses

Not provided.

Birds As A Source Of Pictorial Creativity, Sylvia Bornarth

Theses

None provided.

Experimental Three-Dimensional Design, Jacqueline O'Connell

Theses

None provided.

Exploration Of A Corporate Image: "In The Visual Perspective", H. Clapsaddle

Theses

None provided.

Kinetics Of Hydrolysis Of Butyl Lactate, Peter Pommers

Theses

The acid catalyzed hydrolysis of butyl lactate with water, using lactic acid to achieve a homogeneous solution, was studied.

Experiments at various temperatures were run under catalyzed and uncatalyzed conditions. The course of the hydrolysis was followed by titrating the acidity of the reaction mass at certain time intervals. From the results of these titrations and from the experimental determinations of the equilibrium constant, the reaction velocity constants for the hydrolysis of butyl lactate were calculated. The velocity constants were found to range from .8 x 10^-5 to 25 x 10^-5 liters/ (g-mole)(min), depending upon the reaction temperature …