Digital Commons Network^™

Depth Of Field In High Magnification Fine Grain Photography, Mark Konieczny

Theses

Under normal, general purpose photographic conditions, depth of field is determined by the size of a geometrical blur circle on the negative or print. Under high magnification conditions, another means of measurement must be used based on the wave nature of light and the resolution of the imaging system. For this purpose, an effective depth of field was determined on the basis that no significant deterioration of image quality could be detected by means of resolution and Transfer function in the range of frequencies where the eye transfer function is at its peak. The experimental values obtained were compared with …

Image Degradation In A Diffusion Transfer Process, Peter Petch

Theses

The Diffusion Transfer Process is now widely used in the Graphic Arts industry, and it is important to determine to what length different factors affect the optimum use of it. The effects of exposure, age of the processing solution, and line frequently on the image quality of the Kodak PMT system were studied. Exposure was varied by exposing the material to a standard illuminance for different amounts of time; the processing solution was aged by bubbling air through it for varied amounts of time; line frequency was varied by using a Kodak sinusoidal target and examining the images of two …

Campobello Island: Far From The Mainstream, Stephen O. Muskie

Theses

None provided.

The Role Of Management In The Evaluation Of A Proposed Corporate Acquisition, Dianne O. Isbell

Theses

Unavailable.

A Digital Image Processing System For Slow Scan Television, James Schueckler

Theses

This paper describes a low cost, but powerful, digital image processing system. Although general purpose, it was designed for experimentation with amateur radio slow scan television (SSTV). The project involved conceptualizing, designing, building, programming, and operating the complete integrated system. The image format is the SSTV standard: 128 picture elements (pixels) per line, 128 lines, 4 bits per pixel. The IEEE Standard 696 (S-100) microcomputer bus was used for system interconnect to provide flexibility and expandability. Several microcomputer boards were purchased, and two image interface boards were designed and built by the author. One image interface board provides for transmitting …

Stamping And Embossing: A Modern Adaptation Of Pre-Columbian Metalworking Processes, Richard Coble

Theses

Not Included

Predicting Color Print Filtration And Exposure, James A. Klingshirn

Theses

A method of mathematically modeling the response of a system in which color reflection prints are made from a negative was investigated. Data was generated by making a series of prints with different yellow and magenta filtrations at a series of exposures. First, second and third order regression curves were fit to the filtration versus reflection density curves and the exposure versus density curves that were thus generated. The predictions of the sets of equations were compared to the data and it was found that the filtration could be predicted more accurately than the exposure time, because, the response curves …

The Graphic Design Career Kit, Sharon M. Heyenck

Theses

Not Included

The Effect Of Camera Motion On Mtf And Sqf For Handheld Camera At Two Weights, John Griffith

Theses

Two hundred seven measurements of camera motion, made while operators took photographs, were used to calculate the average Modulation Transfer Function (MTF) and Subjective Quality Factor (SQF) due to the motion. Eight experiments were performed with a 35mm camera at weights of 300 and 600 grams. The camera displacement path was sampled at intervals ranging from 0.5 milliseconds to 15.6 milliseconds. The MTF and SQF were calculated, at several shutter times, from the measured displacement paths using the model of a perfectly efficient shutter. SQF was a linear function of shutter time. The MTF due to camera motion and shutter …

High Temperature Oxidation Of Sterling Silver, Jon A. Hall

Theses

Not Included

An Investigation Of A Mathematical Model To Characterize The Nonlinear Nature Of A Lithographic Film System, David S. Holbrook

Theses

An attempt was made to obtain a set of spatial transfer functions which would allow the prediction of output effective exposure distributions for a nonlinear lithographic film system. Slit exposures were used as one-dimensional system inputs. It was proposed that the use of slits would allow the calculation of a general system transfer function to be simplified. The mathematical model chosen to describe this nonlinear transfer was shown to be invalid due to the nonlinear relationship of small area system gain (small area output effective exposure divided by the input exposure) as a function on input exposure. The model,, based …

Deposition Of Suspensions In A Vertical Converging Tube, Kam-Ho Chan

Theses

The deposition of suspensions in a vertical converging tube with significant gravity effects Was investigated theoretically with control volume - finite difference approach. The fluid was assumed to be incompressible and laminar. The particle density was assumed to be uniform at the inlet of the. tube. The velocity profiles for the fluid considered were (a) Uniform profile, (b) Parabolic profile. The angles of convergence studied were 0°, 5° and 7°. Effects of velocity ratio δ^*(=terminal velocity/mean flow velocity) on the rate of deposition were investigated for δ^*=0,1,10.

It was found that deposition increases with increasing angle …

An Empirical Approach To The Determination Of The Optimum Mask Characteristics Required For Improved Color Reproduction In Direct-Screen Photomechanical Processes, Ben-Shan Cheng

Theses

Not Included

A New Correlation For Heat Transfer During Flow Boiling, Bhabesh K. Thakur

Theses

This thesis is concerned with an investigation carried out to establish a new correlation for the prediction of the heat transfer coefficient during flow boiling through tubes, vertical and horizontal flows, for water and organic fluids (including refrigerants). An additive mechanism of convective and boiling heat transfer has been formulated to give the net heat transfer during flow boiling. The correlation employs three dimensionless parameters: the Convection number, the Boiling number and the Froude number. The correlation has been tested with the data (over 500) from twelve experimental cases of six investigators and the mean deviation from the measured values …

The Use Of The Spline Function In Computer-Aided Type Design, Kathleen Barry Albertini

Theses

The traditional type designer works with pen, in and paper. The characters that he designs go through many changes before the whole font is finalized and set in the printing medium. Further alterations to the font may occur after he prints and evaluates a sample piece of text. Computer-aided type design presents the type designer with a new design tool. Computers have been used in the printing industry for typesetting; the automation of type design is a logical next step. Freeing the designer from the repetitive tasks of the design cycle is one obvious advantage cf using computers. But computer-aided …

Draw-A-Map: An Interactive Graphical System Using A Relational Data Base, Ethel Comte

Theses

Not provided.

Three Dimensional Resonant Vibrations And Stresses In Turbine Blade Groups, Patrick J. Kline

Theses

This thesis describes an efficient procedure for calculating three dimensional resonant vibrations and stresses in intermediate and high pressure turbine blade groups. This procedure is capable of calculating all the natural frequencies, mode shapes, and bending stresses in the tangential, axial, and coupled modes of vibration. Simple beam theory is applied to develop a dynamic stiffness matrix. The solutions to this matrix give the natural frequencies and mode shapes for the blade group. Prohl's energy method is used to determine the amplitude of the forced vibrations and the dynamic stresses. A Goodman diagram fatigue criterion is applied to evaluate the …

Tubular Solar Collector Analysis And Comparison With Flat Plate Collectors In Sdhw Applications, Kevin A. Cole

Theses

A residential solar domestic hot water system utilizing tubular solar collectors is analyzed for climatic conditions typical of various regions of the Northeast. Experimentally determined system parameters are used in analytical simulations to compare the performance of systems using two different flat plate collectors to the system using the tubular type. A cost/benefit analysis is performed to determine the economic feasibility of the various systems.

A Study Of Productivity Analysis At Mcdonnell Douglas Corporation As It Relates To Quality Of Work Life, Management Styles, Cultural Lag And Quality Through Statistical Management Information Systems Data, Michael D. Smith

Theses

This paper, titled "A Study of Productivity Analysis at McDonnell Douglas Corporation as It Relates to Quality of Work Life, Management Styles, Cultural Lag and Quality Through Statistical Management Information Systems Data," is a culminating project that synthesizes the author's learning and growth from their academic program. The document, a master's thesis submitted to Lindenwood Colleges, analyzes the factors influencing productivity at McDonnell Douglas Corporation (MDC) during the early 1980s.

The core of the study is a Quality of Work Life (QWL) survey conducted at MDC's Astronautics Division in St. Louis. The survey aimed to measure employee attitudes and opinions …

Systems Approach To St. Louis State Hospital's Referral Program, Reza Vahidi

Theses

This thesis presents a systems approach to analyzing and redesigning referral and billing processes at St. Louis State Hospital in Missouri. Recognizing the growing complexity of hospital operations, the study applies systems theory to evaluate inefficiencies in the hospital’s referral program, particularly in its interactions with external agencies and community physicians. The hospital historically relied on manual procedures and fragmented communication methods that contributed to delays, inaccuracies, and underutilization of available resources.

The study examines the referral workflow from intake to admission, identifying systemic bottlenecks and proposing structured changes to improve coordination. Emphasis is placed on streamlining communication between hospital …

A Midsummer Night's Dream: A Scenic And Lighting Design, Stephanie Dee Young

Theses

This thesis by Stephanie Dee Young details the scenic and lighting design process for a 1981 production of A Midsummer Night’s Dream at Lindenwood College, undertaken as a Master of Fine Arts project. The work examines the collaborative nature of theatrical production, emphasizing the interplay between director, designers, and other creative staff in shaping a unified artistic vision. The initial directorial concept, rooted in the metaphor “wings in flight,” evolved into an Eastern-influenced aesthetic that emphasized fantasy, mystique, and romance. The scenic design utilized abstracted Eastern motifs to distinguish the structured court from the magical forest, employing fabric panels, custom-built …

Marketing Research In The Health Delivery Services: A Proposed Methodology Based On A Case At Central Medical Center, Dyer A. Henke

Theses

Unavailable.

Capital Investment Program, William L. Diggs

Theses

Unavailable.

Analysis On The Use Of Viewing Filters To Determine Necessary Color Change In The Graphic Arts Industry, John W. Mcfarlan

Theses

This thesis analyzes the effectiveness of the Kodak Color Print View ing Filters. The first half discusses the problems people in the graphic arts encounter when working with color reproductions and points out the in adequacies of the proofing system currently in use. The second half focuses on the application of the viewing filters and their ability to improve the proofing system. This involves an experiment where twenty print buyers and twenty printers are tested on three test images. Half of the partici pants use the viewing filters, the other half do not. The results of the experiment indicate that …

Greek Revival Architectural Facades, Miranda Offen

Theses

None provided.

Trail Markers: Entries, Views, Reminders Of Passage, Michael Flecky

Theses

None provided.

Granularity: Investigating Equations That Convert (T) To (D), Frederick Catt

Theses

An investigation was done on three published expanded equations, that convert (T) to (D). T. Celio, J. Altman and M. Abouelata published equations of the same form, but with differing constants. Their equations were derived by using an assumed square-wave transmittance trace. The investigation was to find the best predictor of (D) from (T) . Both practical and simulation tests were run. The density range was extended, to check for failure at both high and low densities. Standard granularity measurement procedures were followed as close as possible. Results, from the practical tests, showed Altman 's equation the best predictor of …

Osmotic And Mean Activity Coefficients Of Libr And Lic In Methanol At 25, 35, And 45 Degrees C, Peggy Tomasula

Theses

Vapor pressure depression data of LiBr and LiCl in methanol at temperatures of 25,35, and 45°C were measured in the molality range 0.1-4.4m using a static method, where the difference in vapor pressure of the electrolytic solution is compared to that of pure methanol.

Osmotic coefficients were calculated from the vapor pressure data. This data was then correlated with both the one parameter Bromley equation and the three parameter Pitzer equation. For all systems at all temperatures, the data were better correlated by the Pitzer equation than with the Bromley equation. Mean activity coefficients of the two salts at the …

Kinetics Of Rehalogenation Bleaches, Kenneth A. Harrison

Theses

A study was made to determine if a correlation existed between the silver density at 318 nm and the actual amount of silver present in photographic film. Based on twenty (20) samples of bleached and unbleached film, a linear correlation was found, for specific film/ developer combinations, with a correlation coefficient in excess of 0.99. The above correlation was then used to evaluate the bleaching kinetics of several rehalogenation type bleaches. It was postulated that there is a charge barrier effect between the photographic gelatin and the positively charged oxidizing agent in the bleaches. This was caused by the pH …

The Grid: Toward A Design Methodology, Robert Shaffer Kerr

Theses

None provided.