Digital Commons Network^™

Form, Donna Colebeck

Theses

The body of work in this thesis embodies an exploration on form. My interpretation has primarily dealt with form as it relates to hollowware, both functional and non-functional in nature. The hollowware pieces maintain relatively simple shapes with smooth contours, linear dimensions and movement. The linear elements have opened different interpretations so that the work may extend and expand the forms beyond the geometric shapes to allow new contours and directions . Various transitory lines, subtle curves and gradual taperings all work to enhance gentle flow, movement and elegance within each piece.

Determining Spectral Sensitivity Of Kodak Micro Positive Resist 820, Matthew L. Huck

Theses

The spectral sensitivity of KODAK Micro Positive Resist 820 has been determined for the spectral range of 300nm to 500nm. A xenon-source monochrometer was used in a hard contact exposing system. Se/isitivity is defined as the inverse of the exposure (mj/cm ) needed to produce an image in a photoresist coated plate having walls of 70 normal slope. Low intensity reciprocity law failure has been conclusively shown to exist in this resist with exposure intensities of 100 mw/cm and below. Guide lines have been drawn up, based on the procedures and results of the experimentation, to assist photoresist users in …

The Effects Of Agitation In Positive Photoresist Image Quality When Using A Bubble Development System, Keith D. Mogerley

Theses

An important goal of the microelectronics industry is to make new technological advances while keeping the cost of the fabrication process down. To achieve this goal, the microelectronics industry are presently placing more active devices on each chip, while at the same time trying to increase the number of successful chips per wafer. In order for the industry to successfully do this, they must reduce all of the dimensions in the circuit while trying to maintain its physical, chemical, and functional properties. These demands have made all steps of the fabrication process more critical. The scope of this project will …

Perception Of Graininess In Complex Photographic Images Through Objective And Subjective Comparison, Glenn E. Mcneill

Theses

A model previously used for the perception of graininess in uniform-density images that exist in electrophotography, has been verified for use in silver-halide photography. In addition, a model has been developed which estimates the sensation of graininess in photographic images of non -uniform density. Given the relationship between graininess and density in uniform-density images, the graininess in a complex image is weighted by the frequency of occurrence of each measured density in the image. Such an analysis is compared to subjective evaluations. It is shown that the graininess model is useful in predicting the sensation of graininess in photographs.

Evaluation Of The Photographic Characteristics Of Emulsions With Different Iodide Percentages, Joseph M. Sharp

Theses

Ammonia-converted iodobromide emulsions with 0, 1, and 5 mole% iodide were prepared with a single-jet precipitation procedure to the same grain-size distribution. After development to gamma-infinity with high-solvent and low-solvent type developers, photographic characteristics were determined and are reported here. Iodide affects absorption of light in an emulsion, but when corrections are made for this change in absorption, iodide does not change the basic sensitivity of sulfur-sensitized emulsions.

Derivation Of The Transformation Relationship Of Pseudo-Invariant Features Of Two Landsat Images, Jeffrey R. Sefl

Theses

The purpose of this effort was to determine the relationships of the spectral radiance distributions of pseudo-invariant features for a selected pair of Landsat images. The relationships for the four bands (band 4 through band 7) were determined to be linearly related. The transformation equations will map one images brightness values on to a second images brightness values.

A Decision Theory Approach To Tone Reproduction, Kevin E. Spaulding

Theses

The concepts of statistical decision theory were applied to the photographic tone reproduction system to develop an objective measurement of tone reproduction accuracy called the "expected loss" of the system. Reproductions were made of four scenes using systems with a wide range of tone reproduction characteristics. The expected loss for each system/scene combination was calculated, and the perceived tone reproduction accuracy was determined using the psychophysical scaling method of magnitude estimation. A statistically significant correlation was found between the subjectively determined accuracy, and system expected loss, but the degree of correlation was not high enough for the merit function to …

Variations In Image Magnification Due To Mask Repositioning In A 1:1 Projection Printer, Sarah M. Dolan

Theses

A Perkin-Elmer Micralign 230 Exposure Tool was used in an analysis of magnification variation. In the analvsis, all elements were kept constant except for the repositioning of the mask between sets of wafers that were exposed. Repositioning was initiated by removal and replacement of the mask from the exposure tool and the mask holder. Overlay measurements were then taken from the exposed wafers. These measurements were used to calculate the amount of magnification error of the images found on the wafers. These magnification values verified the hypothesis that repositioning of the mask has a significant effect on magnification values.

The Effect Of Microscope Scale Reticle Design On Variance Of Measurement, David D. Rockafellow

Theses

Little work has been documented regarding the design of optical instrument scale reticles. Reticle is the word used to describe both scales and crosshairs used in the eyepiece of an optical instrument. An ergonomic (the relation of man to his working environment) experiment was performed in which thirteen different scale reticles were designed, manufactured and tested. The design parameters tested were scale spacing, line height, and line thickness. The testing consisted of thirty observers measuring a circular test object through a microscope with each scale reticles. The results, taking into consideration both variance in measurement and observer comments, showed the …

Industrial Art Materials, Frank S. Defrancis

Theses

Anyone, who has ever tried to paint has become well acquainted with the fact that huge sums of money too often buy the meagerest amounts of supplies. Faced with the possibility of either breaking into art supply stores at night or learning to vent my hostilities elsewhere I traded my studio supplies for their industrial counterparts and gratefully have never looked back. The following report will document the advantages as well as the disadvantages that I have encountered in working exclusively with industrial art materials. The first half will deal the materials themselves while the second half will offer a …

Determining Techniques And Alternatives For Pupil Recruitment For Enrollment In The Head Start Program, Nancy Vanzant

Theses

This report examines strategies for improving recruitment and enrollment in Head Start programs serving low-income families in St. Louis. Head Start is a federally funded initiative designed to provide early childhood education, health services, and family support to children from disadvantaged backgrounds. Despite the program’s benefits, many eligible families remain unenrolled, highlighting a persistent gap between available resources and community participation.

The study identifies multiple barriers to enrollment, including limited awareness of Head Start, transportation difficulties, and misconceptions about eligibility. Families often perceive Head Start as a program for others rather than as an opportunity for their own children, while …

The Elements Of An Art Form, Gregory A. Gobberdiel

Theses

Unavailable.

A Mathematical Model Of Halftone Reproduction Including The Effects Of Optical And Chemical Spreading, Cort Demmert

Theses

A system which predicts halftone reproduction curves for film-developer combinations, based on the combined optical and chemical modulation transfer function for that combination, has been tested using a 100 cycle/inch contact line screen. Density in fine detail is predicted and used to determine fractional area data. Predicted fractional area data was found to lie within 95 percent confidence intervals of experimental fractional area data.

The Adventures Of Rose And Jody, Chapter 17: Jody Does Her Thesis, Jody Williams

Theses

None provided.

Design Of A High Ratio Gear Reduction Unit, Jean Xydias

Theses

This is a right angle gear drive design where helical and spiral bevel gears are being used. Because of the high speed ratio (1800/18 , input/output), three reductions were applied. Two helical gear sets were used in the first and second reductions (one each), and a spiral bevel set was used at the final reduction. The gears were mounted on four shafts, with the first and last shafts (output and input shafts) carrying one gear each straddle mounted, and the second and third shafts carrying two gears each, overhung mounted. The design was based on a criterion that was set …

Sounds In Clay: A Study Of Vibrating Ceramic Sculpture, Ward Hartenstein

Theses

The purpose of this thesis is to derive a synthesis of the sculptural aspects of form and structure and the physical principles of musical acoustics. vibrating systems: Specifically I wish to deal with three types of free-end vibrating bars; fixed-end vibrating bars; and three-dimensional vibrating bodies, each of which possesses a unique set of technical constraints within which the aesthetic requirements of form and structure may be addressed. My objective is to conduct research leading to the design and construction of a group of objects which, through the involvement and participation of the viewer, communicate both a visual and an …

Bookworks, Edith Louise Freedman

Theses

None provided.

Process, Color, Form, Space And Motion, Susan Pineo

Theses

None provided.

The Closing Of Homer G. Phillips Hospital And Its Effect On The Infant Mortality Rate Of The City Of Saint Louis, Charles E. Crawford

Theses

The infant mortality statistics in any country reflect the social and economic well-being of its citizens. In the United States the infant mortality rate is regarded as a key indicator of the level of health of the population and by implication, as a measure of the effectiveness of the nation's health delivery system. Further , it is believed by some that infant mortality is the single most important public health problem in this country.

The effect on the infant mortality rate as related to the closing of the only acute care public hospital in an economically depressed community is observed …

Developing And Improving Selected Aspects Of Marketing In Nigeria So That Nigeria May Have A Favourable Balance Of Trade With Its World Trading Nations, Isaac Bola Olubunmi

Theses

The Project is about the development and the improvement of the economy of Nigeria so that Nigeria may be fairly self-sufficient in food production . The project is meant to suggest specifically what Nigeria needs to do as far as marketing is concerned , so that it may have a favourable balance of trade with its trading world nations.

In the pursuit of these goals , I have attempted an extensive discussion on the whereabouts of Nigeria relative to the rest of the African countries , its climate and the climatic influences on the agricultural activities of man . Nigeria …

Computer Game Playing: The Game Of Twixt, James R. Huber

Theses

Not provided.

I Am A Camera: The Open Shutter, The Open Wound, David M. Houghton

Theses

No abstract provided.

An Implementation Of Four Of Ledgard's Mini-Languages, Piyanai Saowarattitada

Theses

For decades humans have been searching for the test way to communicate with an intelligent machine, a computer. Several programming languages have been written with the idea of a universal language have been written with the idea of a universal language which includes solutions to solve as many problems as one can think of. Put the more universal the languages are the more complex they are to study. Henery Ledgard tried to combine these two ideas together. He suggests the idea of studying programming language by dealing with a few key features at a time. He separated the various programming …

Distributed Computation In Computer Networks, Ching-Liang You

Theses

None provided

Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena

Theses

Thermograms are records of density levels which correspond to apparent temperatures. The process of thermographic imaging is based on Plank's law which relates temperature to radiance. It begins with the collection of quantum energy which is then converted to voltage. The voltage powers a light source to expose the recording material of the thermogram. Atmospheric effects must also be taken into consideration. The relationship which takes all variables into account can be found in appendix A.

Cast: A System For Color Animation And Scene Transformation, Frederick Schebor

Theses

CAST is an acronym for Color Animation and Scene Transformation. The objective of this system is to give non-computing personnel the ability to create still and animated pictures with the aid of a digital computer. Data generation and animation language are two key components that comprise an animation system. The CAST system incorporates an interactive dialogue to assist the user in generating and/or editing three dimensional scenes, and an animation language which uses a simple script like syntax to describe parallel motion. The third key component of an animation system is the display. The CAST system incorporates hidden surface elimination …

A Study Of Comparable Identifiably Predictions Of Some Resolving Power Targets By Fourier Spectra Considerations, James Greene

Theses

This report documents a study conducted to examine the correlation between identification thresholds and difference spectra of some resolving power target characters. The experiment included the USAF Tri-bar target, the RIT Alpha-numeric Resolving Power Target, and a set of targets called the Granger Modified Tri-bar targets. Assuming that target identification is a filtering process and primarily a function of its frequency spectrum, this study began with a prediction of targets that would have equal identification thresholds from difference spectra considerations. Target images were viewed at various sizes to confirm/refute the original hypothesis. The USAF targets demonstrated adequate control of experimental …

The Preaching Of Non-Sentient Beings, Charles Chaim Wax

Theses

In this Thesis Report I have attempted to document the process whereby my photographic concerns shifted from images of urban life to images of the natural world, and from the use of the 35mm and 2\ format to the 8x10 format. I discuss the development of my Thesis Proposal. It began when I heard a Teisho (talk) by Eido Roshi on "the preaching of non-sentient beings." I then show how my residence at Dai Bosatsu Zen Monastery influenced the direction of my Thesis work. In this Thesis Report I also discuss in some detail my experience of the two aspects …

It's In My Hands Now, Jennifer B. Reed

Theses

Not Included

The Dream: Artists Within Universities, James A. Mirabito

Theses

Not Included