Digital Commons Network^™

A Color Photometer For Calibrating Light Sources, Harvey Gartner

Theses

A Color Photometer designed to calibrate tungsten sources to a standard source has been produced. It is accurate to within a few mired values, though not enough testing was done to specify its limits. There is also a good probability that the color -photometer can be used to find the color temperature of most tungsten sources including many that are not close to the color temperature of the standard source .

The Search For The Mystic Element In Weaving, Nasrin Keyhan

Theses

None provided.

The Life Of The Negro Slave In Alabama, Daniel B. Austin

Theses

This paper is an attempt to give an unbiased account of the conditions either good or bad under which slaves lived and worked. Special attention will be given to their housing conditions, the type and quantity of clothing, food and its preparation as well as the labor they performed. Space will also be given to the crimes and punishment of Negro slaves -- additionally the education and religious opportunities will be surveyed.

Lusters And The Slab Form In Raku, Richard Hirsch

Theses

Not provided.

Construction Of A Magneto-Optic Shutter Utilizing The Faraday Effect, Christian Bergerson, Richard Leary

Theses

An attempt was made to construct a magneto-optic shutter utalizing the Faraday effect. Unfortunately, the final testing did not show the present of this effect. Included in the paper is a graph showing the transmission of two polarizing filters vs the angle between the transmission axes of each filter. Also included is schematics of pertinent components.

Determining The Temperature Of Hot Solid Bodies By Means Of Photographic Pyrometry, Using The Two-Filter Comparison Method, Edward White

Theses

At means of determining the temperature of a hot solid body by photographic means has been developed. For the purposes of this experiment, a General Electric tungsten ribbon filament lamp, with an operating range of 12 to 18 amperes was used as the object. From published curves, it was found that the color temperature of the filament varied from 2220K to 2990K over the above amperage range. It is therefore possible to vary the color temperature with a powerstat and to monitor it with an ammeter. Using two front surfaced mirrors, the lamp illuminated both sides of a photometric edge …

The Effect Of Flash Duration On Spectral Color-Naming, David Loshin, Edward Saunders

Theses

The effect of flash durations of 5 milliseconds (msec.), 500 msec., and 5 seconds on a color naming technique was examined in a dark –field Maxwellian View optical system. Although the results showed variability among three subjects in most regions of the spectrum, all subjects were tested and showed to be part of the population for normal color perception. Graphical interpretation was made for the average of all subjects. There was little indication that color naming shifted, although there are indications of hue purity increases with flash duration. In portions of the spectrum there is an increase in saturation from …

Theory Of Optical Spatial Filtering And Its Application To Enhance Low Contrast Fingerprint Images, Ludwig Scherlowski

Theses

Image improvement, through the use of the Fourier transform property of lenses using various frequency blocking filters, was investigated to determine possible utilization of this technique to enhance low contrast fingerprint image characteristics. Ten basic fingerprint patterns were degraded in contrast and then used as the object t(x,y) in an optical spatial filtering setup. A series of frequency blocking filters were used in an effort to improve the degraded object image. Visual comparison of the filtered images obtained by using a double band frequency blocking filter, which produced the most satisfactory images, shows improved overall contrast. Random ridge enhancement was …

My Daughter Tisha And Our Art, Catherine Jepson

Theses

Not provided.

Rearrangement Of Allylic Alcohols, Herbert Barbehenn

Theses

Three allylic type alcohols were rearranged in sulfuric acid (l, 10 and 50%) at 25 and 100C and their products identified. Specifically, 2-phenyl-lpropen-3-ol, 2-methyl-l-phenyl-l-propen-3-ol and 2-methyl-3-phenyl-l-propen-3-ol were studied. 2-Phenyl-l-propen-3-ol was found to rearrange to 2-phenylpropionaldehyde while 2-methyl-1-phenyl-l-propen-3-ol formed 2-methyl-2-phenylpropanal, isobutyrophenone and 2-methyl-3-phenyl-l-propen-3-ol. The final rearrangement of the 2-methyl-3-phenyl-lpropen- 3-ol allylic alcohol produced 2-methyl-2-phenylpropanal, isobutyrophenone, 2-methyl-l-phenyll- propen-3-ol and 2-(2-phenylisopropyl)-4-phenyl-5- methyl-1, 3-dioxane.

An Instrument For The Determination Of Photographic Film Drying Rates, John Dahms, W. Fox

Theses

The way in which a photographic material dries is commonly represented as a plot of rate of vaporization vs. time. Generation of these curves in the past has been a lengthy, error prone process. This project's attempt was to greatly simplify the generation of these curves. A photographic drier with a thermal sensing element was designed, constructed, and tested. The drier produces a heated air flow perpendicular to the film plane. A thermistor prope was placed in contact with the base of the film to sense the temperature of the film during drying. A rate of vaporization curve was obtained …

An Instrument For Rapid Determination Of Granularity In Photographic Film Samples, Melvin E. Pollard

Theses

A scanner based on the principle of the classic microdensitometer was assembled for the purpose of rapid granularity determination. A rotary stage was used to allow the generation of a root-mean-square (rms) voltage signal proportional to rms Transmittance in the sample. A mathematical relation was then developed to calculate granularity. The scanner was calibrated and was proved capable of 10 percent accuracy with 95 percent confidence.

The Synthesis And Application Of Programmable Counters, James Milne

Theses

A method of synthesizing programmable counters is described. It is shown that if the values of the program inputs are not fixed by external requirements, they can be defined during the synthesis to tend to minimize the combinational logic of the programmable counter. A programmable counter can be used as the control unit in a word organized digital system. The cost effectiveness of synthesizing synchronous sequential machines modeled as word organized digital systems is discussed.

Peak Harmonic Distortion Due To Quantization, On-Ching Yue

Theses

In this thesis, the problem of quantization noise 1s presented, and recent efforts 1n this area are reviewed. With the motivation for further Investigation Into the problem explained, the purpose of this thesis 1s stated to be the determination of peak harmonic distortion due to quantization for predominantly single frequency Inputs. Two cases were examined with pure sinusoid and sine wave plus Gaussian bandlimited white noise. The method used was to simulate the quantization process on the computer, and to use a Fast Fourier Transform algorithm to analyze the spectra of the quantized signals. For pure sinusoidal Inputs, the location …

Continuous Interfacial Polycondensation Of Nylon 6-10, Sumer Raj Hundia

Theses

Nylon 6-10 has been prepared by continuous interfacial polycondensation hexamethylenedlamine and sebacoyl chloride in a stirred system. The effect of monomer concentration and stirring on the intrinsic viscosity of the polyamide 6-10 solution in m-cresol was measured.

As stirring (RPM) and monomer increased the intrinsic and the polymer yield through a maximum. Diffusion coefficients (D_AB) for hexamethylenedlamine were for hexamethylenedlamine were and were used for the calculations of j_D factors and K/DAB ratios. A relationship and j_D factors was established by a correlation curve.

Development Of An Apparatus To Obtain Temperature Profiles Of Molten Flowing Polymers, Ismail Kemal Saltuk

Theses

The object of this investigation is to develop and test an apparatus to predict temperature profiles of polymer melts in laminar flow in a heat exchanger, with non-isothermal wall conditions.

A commercial polyethylene melt is pumped at various flow rates through a smooth 0.957 in. I.D. pipe. The entrance temperature of polymer is maintained uniform.

Radially distributed six thermocouples (0.062 in. 0.D.) are placed at 2.5 ft. intervals from the entrance of heat exchanger. Immersion of these probes parallel to the flow direction, reduced the errors due to the conduction of heat from the tube wall to the thermocouple stems. …

Unsteady State Heat Transfer In A Composite Medium Exposed To Radiant Heat Energy, Ripujit Mackar

Theses

Transient one dimensional heat transfer in a composite medium of two materials exposed to radiant heat flux has been investigated. The end faces of the composite were considered to be losing heat energy by natural convection and radiation. The principle variables studied were the temperature at steady state and the time required to attain the steady state with and without the contribution of loss by radiation. It was observed that neglecting the loss of energy by radiation from the face receiving the radiant heat flux introduced an error in the absolute steady state temperature of that face as high as …

Ceramic Planters That Function As Space Dividers, Richard Zimmer

Theses

Not Included

Figurative Painting And The Photograph, Thomas Insalaco

Theses

None provided.

The Investigation Of Sculptural Forms, John Frisenda

Theses

None provided.

Flat Monumentality, Theodora Cichy

Theses

None provided.

Personal Imagery And Paint, Stuart Green

Theses

None provided.

The Stunting Of Creative And Mental Growth; Or, The Evolution And Pollution Of Ideas, Nelson Dodson

Theses

None provided.

Familia, Maria Emerson

Theses

None provided.

Photo Extensions By A Painter, Catherin Berger

Theses

None provided.

Single Element Fiber Forms, Carolyn Thomas

Theses

None provided.

Determination And Application Of Winstein-Grunwald M And Y Values In Bridged Polycyclic Systems, Rosemary Leyden

Theses

The rates of solvolysis of 3-nortricyclyl p-bromobenzenesulfonate (nortricyclyl brosylate) have been determined (at 25.0) in the solvents acetic acid, methanol, and acetic acid and methanol with various small amounts of added water. First order rate constants were obtained by u.v. absorbance, conductometric and titrimetric techniques. All rate constants obtained, with the exception of the titrimetric data, were fairly reproducible and agreed with the previously reported data (where available). Numerical values of m from the Winstein equation: log k/k = mY were calculated from experimental data for solvolysis reactions of nortricyclyl brosylate in each of the solvent sets. These m values …

Photographic Dependence/Independence, Patricia Porcynaluk

Theses

None provided.

Natural Forms In Abstract Painting, Teresa Patti

Theses

None provided.

Ceramic Tea Service, Patricia K. Swyler

Theses

None provided.