Digital Commons Network^™

A Graphic Identity Program For Rochester Mental Health Center, Linda Patterson

Theses

None provided.

Journal - September, 1974 - February, 1975, Thomas Jagger

Theses

None provided.

Optimization Of A Particular Aerial Photographic System By Simultaneous Intensification, Richard D. Young

Theses

Under the conditions of a low-altitude, rapid access photographic system, a method of simultaneously intensifying image exposures is compared to low intensity latensification. The simultaneous intensification resulted in a speed increase of 2.4 times, while latensification produced a speed increase of 1.7 times. Latensification was more effective in most of the other responses that were analyzed: reduction of Contrast Index was less by 0.1; speed at the minimum gradient point defined by the untreated strips was increased by latensification by 1.29 times compared to 1.23 times by simultaneous intensification. The detective quantum efficiency of the latensified film was higher than …

Design Of A Yig-Tuned Oscillator, Tien Liang Jin

Theses

A technique for designing YIG (yttrium-iron garnet) tuned transistor oscillators, tunable over the range of frequencies from 500 to 950 MHZ, is presented. The approach taken differs appreciably from that used in the design of conventional LC-tuned oscillators. One major difference is that the YIG tuning mechanism is electrically controlled. The YIG tuning element is treated as a single unit and is not resolved into an equivalent LC circuit. Instead, a direct method using reflection coefficients measured at network terminals to characterize various design stages is applied. The transistor is also characterized by reflection and transmission coefficients, i.e., S-parameters. Thus …

A Computer Based Analysis Of The Effects Of Rhythm Modification On The Intelligibility Of The Speech Of Hearing And Deaf Subjects, Harry Lang

Theses

The speech of profoundly deaf persons often exhibits acquired unnatural rhythms, or a random pattern of rhythms. Inappropriate pause-time and speech-time durations are common in their speech. Specific rhythm deficiencies include abnormal rate of syllable utterance, improper grouping, poor timing and phrasing of syllables and unnatural stress for accent and emphasis. Assuming that temporal features are fundamental to the naturalness of spoken language, these abnormal timing patterns are often detractive. They may even be important factors in the decreased intelligibility of the speech. This thesis explores the significance of temporal cues in the rhythmic patterns of speech. An analysis-synthesis approach …

Evaluation And Testing Of Color Strength Measuring Methods In The Graphic Arts, Barry Sullivan, Donald Wilkalis

Theses

The term color strength is defined as the hue, saturation, and brightness of an ink in the C.I.E. scheme of color specification. With this definition two color strength measuring methods are evaluated on a common basis. A colorimeter is used to read samples produced with varied ink-film thicknesses and varied ratios of white pigment to sample ink. Colorimetric properties are plotted on a U.C.S. diagram with coordinates modified to include the C.I.E. brightness factor W*. The ink-film thickness method is chosen as the preferred method for determining color strength.

Effects Of Varying Unsharp Masking And Contrasts In Duplicate Mammographs With Respect To Cancer Detection, Leonard Parker

Theses

This report examines two methods of enhancing a photographic image and applies them to duplicating mammographs. Subtractive unsharp masking, one such method, is a photo-optical edge enhancement technique. The degree of unsharpness is controlled by interspacing between the mammograph and a receiving film while exposing. The other method is optimizing the combination of masking film contrast and duplicating film contrast. Three levels of unsharpness, two levels of mask contrast and two levels of duplicating film contrast were tested. The common objective of this project and mammography in general involves the recognition and diagnosis of breast cancer. Specifically, the experimental objective …

Evaluation Of Herington General Integral Test For Vapor-Liquid Equilibrium Data, Raja Gopal Nori

Theses

A new set of general integral tests for the thermodynamic consistency of isothermal and isobaric equilibrium data of binary systems was proposed by E.F.G. Herington.

The systems Benzene-Cyclohexane and Benzene-n-Propanol were examined using Herington integral test-. The data used included sets of data known to be in error. One set was, in effect, at true vapor-liquid equilibrium (the data of literature) but the other data was obtained when the system was inadequately insulated and heated.

Heringtan test showed significantly different estimates for heats of mixing for the cases involved. The best data showed heats of mixing near the theoratical values. …

Job Satisfaction (An Original Study Of Xerox First Line Managers In The Field Organization), Barth Kelly

Theses

None provided.

The Position Of Women Artists Within The Aesthetic Community, Ann Kalmbach

Theses

None provided.

Rheo-Optical Properties Of Polyisobutylene, Russell B. Biss

Theses

This study presents quantitative experimental data on the various stress-optical characteristics of polymer liquids, specifically, polyisobutylene. Through the use of a concentric cylinder rheogoniometer and a rotational viscometer, the temperature effects of a newtonian polyisobutylene liquid. was studied and was found to have a stress-optical coefficient independent of shear stress and minor temperature changes. The experiments confirm that the birefringence is a known function of the extinction angle and the shear stress. Various polyisobutylene liquids were used in a simple flow device to observe the birefringence in the 1-3 plane and the 2-3 plane. The results indicate that the 1-3 …

A Study Of An Adiabatic Tubular Reactor For The Multiple Chlorination Of Methane, Richard L. Braun

Theses

A computer program has been developed which simulates the multiple chlorination of methane in an adiabatic, tubular reactor. Euler's method is used to approximate the solutions of the programs differential equations.

The program is designed to determine the amount of an inert diluent required in the feed stream to attain some specified conversion of methane in a safe and efficient temperature range. Particular emphasis is put on determining the amount of diluent required to attain 98% conversion of methane at an outlet temperature of 723°K. The program also determines the reactor volume necessary to achieve the specified conversion, and the …

Solvents Screening For Hydrocarbons Separation Of Close Molar Volumes, Dilip K. Kapasi

Theses

The approximate physical model for solute-solvent inter?actions presented by J, M, Prausnitz and R, Anderson¹ is briefly discussed, Applicability of Weimer, Prausnitz³ and Helpinstill, Van Winkle⁷ models is investigated using experimental values of activity coefficients for C₅ hydrocarbons in 13 solvents including one nonpolar and 12 polar solvents. Independent correlations, based on our experimental values at 45°C for normal and isopentane have been developed. Although the required thermodynamic properties are obtained through a comparative analysis of all the available and estimated methods, dependable values of activity coefficients for Isopentane and 1-Pentene could not be obtained through …

An Attempt To Define Common Characteristics Among Certain Service Industries, William O'Connor

Theses

None provided.

A Study Of The Effect Of Ink Tack, Printing Pressure, And Printing Speed On Toning In The Driographic System, Thomas Rigg

Theses

An investigation was made into one of the newer planographic printing plates, specifically 3M's Dry Plate. This plate is part of the system more popularly known as driography. As with many new processes, driography is beset with several problems. These include plate durability, substrate suitability, and toning. This study deals with the problem of toning and a. method for investigating it. In driography, toning is defined as the inking of the non-image background of the plate. Several factors are thought to have an effect on the amount of toning. Factors such as ink tack, ink temperature, room temperature, humidity, speed, …

Suggested Guidelines For A Printing Program In Secondary Education, Raymond Torella

Theses

None provided.

A Photographic Recorder For Experimental Parachute Test Data, Peter Vredenburg

Theses

Improvement in the ability to record and retrieve experimental data in general enhances the degree of utilization of information. Recent advances in electronic logic circuits, and the advent of the light emitting diode, make possible the utilization of photography as an initial recording medium. This improves the retrieval time for data, since it can be reduced and coded prior to recording with modern solid state circuits. A feasibility study, and construction of a prototype recorder was done for application to experimental parachute test data. The recorder monitors strain gage response at a sample rate of 20 per second, converts the …

Design For A Developing Consortium, Henry A. Mauermeyer

Theses

The number of consortia in American higher education expanded rapidly from only ten in 1960 to eighty in 1973. Many do not have an organized method of developing interinstitutional cooperation, structuring their internal management, or preparing to meet future expansion.

The design of an organizational process appropriate to consortia in general has been developed in this thesis. The design is based on an analysis of various materials: (1) literature on the consortium movement; (2) data gathered from a nationwide survey conducted by the author; (3) visits with directors of consortia and experts in the consortium field; (4) actual working experience …

An Experimental Study Of The Separation Of Multicomponent Mixtures Via Thermal Parametric Pumping, Wayne Weywen Lin

Theses

A thermal continuous parametric pump for separating multi-component mixtures was experimentally investigated using the model system toluene-aniline-n-heptane on silica gel adsorbent. A simple method for predicting separations is presented and is found to be in good agreement with the experimental results. The method, based on an equilibrium theory, is under the assumption that a multicomponent mixture contains a series of pseudo-binary systems, each system consisting of one of the solutes as one component and the common inert solvent as the other component.

Effect Of Organic And Inorganic Silver Complexing Agents On Image Quality, Stephen Scharfstein

Theses

Image Quality of plus-x film processed in a monobath solution containing an inorganic silver complexing agent ( sodium thiosulfate ), was compared to plus-x film processed in an organic silver complexing agent ( mercaptoacetic acid ). A control run using DK-50 was also made. The image quality of the film was best with DK-50 and worst with mercaptoacetic acid. Image quality was determined by the results of the following tests: 1 ) Resolving Power 2 ) Acutance 3 ) MFT 4 ) Granularity

Master's Thesis, Susan Childs

Theses

None provided.

The Formulation Of A Woodworking Studio, D. Hunter Kariher

Theses

None provided.

Say It With Flowers, Jack Farkas

Theses

None provided.

Notes On Liberation, Phillip Garbus

Theses

None provided.

A Comparison Of Phenidone Determinations In Photographic P.Q. Developers, Ernest Dankert Jr

Theses

Five methods for determining Phenidone in Phenidone-hydroquinone were investigated with aspect to accuracy, precision, and time required to perform the analysis. The methods include ultraviolet spectroscopy, colorimetric estimation, and cerimetric titrations. A cerimetric analysis was found to have the greatest precision, a 7% error at the 95% confidence level. All analyses required approximately the same time to complete. Each analysis allowed the accuracy to be adjusted, i0 compensate for operator techniques

A Study Of Latent Image Fading In So-343, Mitchell Glasser

Theses

Experimental evidence indicates that a high intensity, short duration exposure produces surface image exclusively in this emulsion. The ensuing fading was shown not to be caused by internal migration of the latent image. The high intensity exposure produced a massive amount of sub image nuclei which could subsequently be rendered developable by a low intensity post exposure. This latensification failed to achieve an improvement in image stability, in that the amount of fading was shown to be solely a function of the density of the fresh exposure. It was hypothesized that although this treatment did raise some grains from an …

A Study Of Fluid Flow Entering A Sharp-Edged Channel, Rocco Racano

Theses

Experimental investigations were carried out on an newtonian fluid In the two dimensional case through the regions of a sharp-edged entrance and exit. Qualitative and quantitative results were compared to a variation of a two dimensional case of converging flow in a capillary as originally derived by Oka and proposed by Philippoff. In addition velocity profiles were taken in the entrance region. Furthermore, the effect of temperature gradients in the slit region with their resulting optical effects were considered. The methods used to obtain these goals were photoelasticity and streak photography.

Results were four, to be consistent with the theory …

Relationship Between Image Size And Tone Reproduction Curve, Kenneth Hansen, Robert Pisa

Theses

This project attempts to find a relationship between preferred tone reproduction and image size. Photographic prints with different tone reproduction characteristics were made. The differences were very small but just noticeable. Prints were made in three different sizes and compared to a standard size print by a paired comparison method. Analysis showed that there was no tone reproduction difference in the preferred prints of both smaller and larger sizes.

The Setting Up Of An Introductory Woodworking Course And Basic Shop, H. Wayne Raab

Theses

Not provided.

A Unified Matrix Formulation For The Unbalance Response Of A Flexible Rotor In Fluid-Film Bearings, Charles Thomas Jr

Theses

An analysis and a computer program for determining the steady-state response of a general rotor-bearing system, based on the concept of a dynamic stiffness matrix, are presented in this thesis. The rotor is idealized as an axial assemblage of beam elements that have continuous mass and isotropic, elastic properties. These properties are developed by using the Bernoulli-Euler beam theory equations to form the dynamic stiffness matrix. Transverse shear effects are neglected. Gyroscopic coupling effects, asymmetric linearized bearing properties, and unbalanced loading are represented as optional end effects on the beam elements. The development necessitated the use of complex variables to …