Digital Commons Network^™

The Function Of Flat Shape In Painting, Marla Friedrich

Theses

None provided.

The Design And Development Of A Professional Super-8 Movie Camera, Donald Simonini

Theses

None provided.

Contemporary Religious Graphic Design, Vlasta Paul

Theses

None provided.

An Investigation Into The Development Process Of Medical X-Ray Films, Alfred Knapp, Johnny Hovis

Theses

Correlation between the results of medical x-ray processing labs and the USA Standard for processing medical x-ray film is lacking at present. In order to correct this, a developer formulation will have to be devised to obtain in the experimental laboratory the same results that are obtained by the automatic x-ray processing machines that are presently being used. In an attempt to accomplish this, a factorial experiment was designed in which two levels of the following five factors were varied: metol, hydroquinone, potassium bromide, development time, and film (both rapid process types). The results from this factorial (tray processing) would …

Experimental Study In Systems Optimization Of An Ansco Model 4 Microdensitometer, George Orton, Mitchell Stevens

Theses

A research project was designed to repair and optimize the performance of a. prototype Ansco Model 4 Microdensitometer which had been inoperative for several years. Repairs were made in the start circuit of the control panel, lamp voltage control and the 2nd cut-in potentiometer to make the instrument operative. Calibrations and alignments were made and an apparatus was designed and implemented to facilitate lateral slit alignment. The original objective of optimization was not met due to insufficient time but the instrument was made operative and accurate to less than 2% over the 0-3.0 density range and 15% above 3.0. Recommendations …

An Examination Of The Conclusion Proposed By W.A. Thornton On The "Luminosity And Color Rendering Capability Of White Light", Mary A. Maier

Theses

A study was recently conducted by W.A. Thornton of Westinghouse Flourescent and Vapor Divisions, on the luminosity and color rendering capability of white light. It is the purpose of this project to investigate the validity of his conclusions. Thornton states that: "The spectral power distribution of white light required to maximize luminous efficiency and the color rendering index is approximated by additive combination of three spectral lines near 450, 540 and 610nm The two wavelength regions near 500 and 580nm are disadvantageous."²

Detection Of Developer By-Products Using The Schlieren Method, Stephen Kelly, Ralph Simon

Theses

A single-pass schlieren system, utilizing two 14 inch focal length lenses, has been developed for the purpose of demonstrating the feasibility of detecting and recording developer by-product flows from various photographic film/paper-developer combinations. The test samples studied were: Kodak Polycontrast F Paper in Kodak Developer, D-72 and Kodak Kodalith Contact Film in Kodak Developers D-11, Kodalith Super and Kodalith. The apparent amount of detectable flow varied greatly from test sample to test sample, but did not seem to show any significant shift in the pattern due to variations in the exposure conditions on the samples. Differences in the time of …

Deflections Of A Ring Due To Normal Loads Using Energy Method And Stiffness Matrix Method, A.J. Rabinowitz

Theses

Deflections and reactions of a ring of 1.855" mean diameter, fixed at one point, simply supported at another point and loaded normally at an arbitrary point were determined using the energy method and the stiffness matrix method. These results were verified experimentally and it was found that the values of displacements and reactions obtained by the two theoretical methods were within 4.5% and 0.5% respectively of experimental results. When effect of transverse shear was included in the computations done using the energy method it increased the values of deflections by less than 1.5% thus confirming that the effect of transverse …

Diffusion Of The Thiosulfate Ion Out Of Photographic Film During Washing, Kenneth Haring

Theses

The thiosulfate ion does not freely diffuse out of a hardened photographic gelatin emulsion. Salts in the washing water displaces the adsorbed thiosulfate ions and allows them to freely diffuse out of the emulsion. The effect of temperature upon the diffusion of the thiosulfate ion is on the order of other diffusion processes. The type and amount of hardening also affects the diffusion of thiosulfate. The diffusion of thiosulfate out of the emulsion is fastest when a non-hardening fixer is used. The use of an alum hardening fixer results in slower diffusion than with formaldehyde prehardening.

A Comparison Study Of Resolving Power Targets, Robert Mericsko, Kent Collier

Theses

Five high contrast (greater than 100:1) reflection test targets were investigated. The taregts were: (1) USAF 1951, (2) NBS Microcopy, (3) DIN German Standard, (4) RIT, and (5) a Hexagonal test target. The targets .were photo graphed at a reduction of 21X using a microcopying camera. Evaluation of resolving powers was made by the two research partners; independently. Analysis of the resultant data involved' a comparison of resolving power averages and variations for each target type. It was concluded that the five resolving power- targets do not perform similarly over the region investigated. Consistent variability could not be obtained between …

Interference Coatings, Bruno Glavich

Theses

Not provided.

Fact And Illusion In Painting, Patricia Sennett

Theses

Not provided.

Wet Film Sensitometry With An Infrared Scanning Densitometer, Anthony Casinelli, John Hisler

Theses

This project was to design and operate an infrared scanning densitometer to monitor the growth of the characteristic curve of a film during development. An aparatus was constructed which enabled us to pass repeatedly, a sensitometric strip through a beam of radiation during development. This radiation was focused on the film plane of the development container. The spot on the film plane was relayed, after transmission through the sample, to a photomultiplier tube. The response of the tube was displayed an oscilloscope and this was photographed. We were able to obtain a trace of the characteristic curve of a fully …

An Experiment In The Use Of Graphics For Musical Interpretation, James Van De Car

Theses

Not provided.

The Stability Of A Nonlinear, Time-Varying Control System, Joseph Connolly

Theses

This thesis investigates the stability of a class of nonlinear, time-varying control systems using the Second Method of Liapunov. A recent investigation of this subject was done by Dr. Z. V. Rekasius when he presented the sufficient conditions for stability for a feedback system containing a single nonlinear, time-varying element whose input-output characteristic is contained in a finite sector. This stability criterion developed by Dr. Rekasius is used to extend the region of stability for a class of nonlinear, time-varying systems represented by the equations ẋ = A x + b f(σ,t) σ = cTx where x is an n-vector …

A Study Of The Holy As An Aesthetic Phenomenon, Thomas Raterman

Theses

Not provided.

Stoneware And Porcelain Fireplaces, Rick E. Flannery

Theses

None provided.

Certain Relationships Between Painters Of The Mannerist School And Selected Contemporary Painters, Phillip Duell

Theses

None provided.

Drawing And Painting On Pottery Forms, Roger Churches

Theses

Not Included

Development Of A Series Of Geometric Shaped Canvas Paintings, William Johnston

Theses

None provided.

Window Paintings, John Ritson

Theses

None provided.

A Computer Program For Determining Hinshelwood Rate Mechanisims From Nonisothermal Pellet Data, Joseph J. Atkins

Theses

Methods of determining Hinshelwood rate correlations from non isothermal catalyst data was studied. It was determined for any chemical system involving a reacting gas mixture over a porous catalyst a node analysis could be used to determine chemical concentration and temperature variation through the pellet. Calculation performed with a spectra 360/Fortran 4 program defined the Hinshelwood equation from estimated surface rates. Then utilising nods analysis to determine concentration and temperature variance, transport and rate equations were integrated through the pellet to obtain a total pellet rate of reaction. For acceptance of Hinshelwood equations the calculated total rate must equal the …

The Effect Of Organic And Inorganic Salt On The Relative Volatility Of Non-Aqueous Systems, Glenn W. Lindberg

Theses

The effects of dissolved salts on the vapor-liquid equilibrium of two non-aqueous binary systems have been studied. Vapor-liquid equilibrium data were taken for the binary systems ethanol - n-hexane and ethanol - hexene-1. Then potassium acetate was dissolved in each of the binary systems at a level of 1.5 mole per cent and equilibrium data were collected. The effect of the dissolved potassium acetate at this low concentration was found to be minimal.

Greater levels of salt solubility could be achieved only in the binary systems containing high ethanol concentrations. Consequently, the 15 mole per cent n-hexane in ethanol binary …

The Effect Of Flow Rate And L/D Ratio On The Frequency Response Of Water Fluidized Beds, Arnold Ludke

Theses

In this investigation, the dynamics of a water fluidized bed with varying L/D ratio and flow rate were analyzed both theoretically and experimentally, and the results of the two were compared.

The theoretical analysis was based on the standard method of Laplace transforms and transfer function synthesis.

The experimental investigation was conducted using standard frequency response techniques.

The mathematical model used consisted of a series of non-interacting perfectly mixed cells plus a distance velocity lag.

At low flow rates (3 to 6 times minimum fluidization velocity) the experimental data (in the form of Bode plots) were found to be in …

A New Technique For The Solution Of Free Convection Mass Transfer Boundary Value Problems, James Lewis Putman

Theses

Free convection mass transfer in boundary layer flow due to density difference in an isothermal model was studied. Previous work was examined and a quasilinearization technique was chosen to linearize the system of nonlinear partial differential equations resulting from the boundary layer continuity, momentum, and diffusion equations. This system of linear ordinary differential equations was solved by a computer program utilizing an iterative Gauss Jordan matrix solution technique. Results are presented and the convergence rate of the variables is plotted for each variable as a function of the distance from the boundary layer.

Correlation Of 1/F Noise With Threshold Drift In Mosfet's, John Peter Rooney

Theses

A brief review of the fundamentals of MOSFET's is given. A correlation between threshold drift and surface states is made, with a following correlation between surface states and 1/f noise. It therefore follows that MOSFET's with a high 1/f noise level will drift more than those with a low level of 1/f noise. Experiments were carried out to show this effect, but no clear cut conclusions can be drawn from the experimental work.

An Experimental Determination Of The Cycle Slipping Rate Of A First Order Phase-Locked Loop With D-C Modulation, James William Creutz

Theses

No abstract provided.

"For A Better Zoo", Vincent Lupinetti

Theses

None provided.

Varying Contrast Of Ektacolor Paper By Rehalogenation Techniques, James Esser

Theses

By using rehalogenation techniques with Kodak Ektacolor paper, contrasts of nearly twice that produced by CP-5 processing were obtained. A metol-hydroquinone developer was used to produce a silver image which was rehaligenated and then developed in CP-5 developer to produce the colored image. By adding a restrainer to the MQ developer and then increasing development times, it was possible to produce a range of contrasts. Only slight changes in contrast were obtained by varying the MQ concentration. pH and development times at normal restrainer content. By reducing the color redevelopment time it was possible to reduce the contrast slightly.

New Concepts In Illustration Techniques For The Printed Media, David Folkman

Theses

None provided.