Digital Commons Network^™

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.

Rheology Of Asbestos Filled Polystyrene, Richard Henry Young

Theses

A capillary rheometer was used to generate data showing the volumetric flow rate at various pressures for a polystyrene resin and for an asbestos filled polystyrene. Variables evaluated were per cent asbestos and temperature. These data were then used to calculate the maximum shear stress at the capillary wall and the corresponding maximum velocity gradient (shear rate) at the capillary wall. A rheological equation containing three constants was employed to relate the shear stress to the shear rate. In addition, a simple relationship was found between the values of two of the constants and the per cent asbestos. There is …

"For A Better Zoo", Vincent Lupinetti

Theses

None provided.

An Active Fet Receiver Front End Mixer, Kenneth Voyce

Theses

In many recent receiver designs, the front-end mixer determines the receiver's sensitivity and its susceptibility to distortion from large input signals. Two balanced FET mixers are developed for such an application; a common source configuration and a common gate configuration. Each exhibits a range of 110 dB between the available input power necessary for 10 dB((S+N))/N sensitivity and the available input power of a two-tone signal which causes intermodulation products down 40 dB from the desired signals. An expression for the conversion transconductance of a junction FET used as a mixer is first derived from the device transfer characteristic equation. …

The Season Of Man, Karl Schantz

Theses

None provided.

Hand Puppets, Robert Knorr

Theses

None provided.

Pattern Recognition By Means Of Electric Stimuli, Melvyn Kreitzer

Theses

None provided.

Illustration For Childrens' Literature, Edward Parker

Theses

None provided.

Noise Power Ratio Testing Of Multichannel Single Sideband Communication Equipment, Per Vinther

Theses

It is shown, that Noise Power Ratio (NPR) testing of multichannel Single Sideband (SSB) transmitters should be performed loading all channels with identical white, gaussian, zero-mean noise signals in order to obtain the worst case result. A theoretical analysis of bichannel equipment under the two different input conditions: (a) statistically independent noise signals, and (b) statistically dependent noise signals; shows that the intermodulation distortion on the output of the transmitter is the same for either case. This result is extended for an arbitrary number of channels to the point of showing that the test results obtained for statistically dependent noise …

Ink Film Thickness And Its Relation To Dot Size In Photo Offset Lithography, Richard J. Byer

Theses

The relative ink film thickness of screen tints compared to nearby solid printing areas of two grainless lithographic plates were measured for dot areas from 45% to 95%, using a photometric technique of measuring the relative quantity of ink on a known area of the plate. Four different screen rulings were used - 65 I/in., 150 1/in., 300 1/in. and 500 1/in. It was found that there is no correlation between dot area and ink film thickness for the dot areas from 60% to 95% for the three coarser screens and from 75% to 95% for the 500 1/in. screen. …

The Modulation Transfer Function Of The Human Visual System At Selected Spectral Frequencies, George L. Ayers

Theses

The Modulation Transfer Function of the human visual system has been determined with a sin usoidal test target, by measuring the threshold contrast as a function of spatial frequency, for monochromatic light of constant average luminace. Data were obtained for a broad band range and wavelengths of 538 and 617 nm. It is shown that a maximum MTF occurs at frequencies between 2 0 - 3 0 cycles/mm on the retina and that this sensitivity decreases for both lower and higher frequencies. Small but discrete differences appear in the curves for broad-band radiation and the green and red filtration at …

Selected Poems Of Robert Frost, Peter Basti

Theses

Not provided.

Environmental Relationships, Michael Cotsworth

Theses

None provided.

The Black Man And The American City, Gene De Prez

Theses

None provided.

The Effect Of Nitrilotriacetic Acid Upon The Biodegradability Of Linear Alkyl Benzene Sulfonate, John D. Mckenna

Theses

The effects of trisodium nitrilotriacetate (SKTA) and sodium tipolyphosphate (STPP) upon the biological degradation of linear alkyl benzene sulfonate (LAS) ware experimentally investigated by the chemical oxygen demand and methylene blue methods. It was found that when STPP was present with LAS, the degradation of the LAS was better than when alone in solution. It was also found that LAS in solution with SN TA was less degradable than LAS alone. The benzene ring of the MS appeared to degrade after most of the linear portion of the chain had already been degraded.

The Optimization Of A Catalytic Methanol Reactor, Peter Wrampe

Theses

The development of a computer program which determines the minimum space time of the methanol synthesis reactants is presented. Also, the optimum temperature profile along the catalytic reactor was predicted for a desired conversion at a given operating pressure, feed composition, and catalyst effectiveness factor.

The equilibrium conversion of methanol was determined at various reaction parameters. Rates of reaction were ascertained and maximized with respect to temperature for various conversions and given reaction parameters. The results, along with those obtained when the design equation was numerically integrated, were compared to published data. Equations were established for various sets of published …

Design In Motion: An Animated Study, David S. Porter

Theses

None provided.

A Theoretical Investigation Of Color Correction Masking For The Graphic Arts, Clarence Gutteridge Jr

Theses

The theoretical functional relationship between mask density and original red, green, and blue densities has been described for a photomechanical reproduction system. A computational model simulating the reproduction system was derived and programmed on a digital computer. Spectrophotometric curves were used as originals and the needed ink amounts to reproduce these colors were specified by a set of transformation equations. The relationship obtained by regression analysis did not completely agree with conventional masking requirements. The results of this investigation are compared with the negative photographic mask technique to investigate the inadequacies of the photographic process to give adequate masking.

Reliability Considerations For Communication Satellites, Frank Polizzi

Theses

A detailed program covering all phases of reliability for a communication satellite was presented. In long mission programs such as this one, reliability is the prime consideration in assuring a successful accomplishment of the stringent goals set forth. Reliability principles and methods were incorporated in delineating each major task in the program. These principles and methods not only aided the reliability personnel in performing their duties better, but also assisted the design group, manufacturing personnel, and the testing and evaluation group in performing their jobs efficiently by being aware and knowledgeable of reliability engineering.

Various reliability disciplines were imposed, as …

Existentialism Theory: Its Relation And Application To Contemporary Communication, Ed Milanich

Theses

None provided.

A Study Of Hydrogen Bonding, Mary Ann Conklin

Theses

The proton magnetic resonance technique lends itself to the study of hydrogen bond equilibria. Through PMR spectra, hydrogen bonding can be detected. The specific proton which participates intimately in the hydrogen bond may be identified. The following work has investigated hydrogen bonding systems in which the proton donor is trifluoroacetic acid and the proton acceptor is an N-heterocyclic base, such as quinazoline, quinoline, and isoquinol ine. From measurements of the chemical shift versus concentration, and from measurements of the line width at half peak amplitude versus concentration for the time average exchange signal, the extent of hydrogen bonding may be …

Photography: A Basic Course For Art Students, Donald Dickinson

Theses

None provided.

J.D. Anthony: Itinerant Minister, Billy Ray Anthony

Theses

The purpose of this paper is to relate some of the experiences which were important in the life of Reverend J.D. Anthony (b. 1825), an itinerant Methodist preacher. A section of the paper is devoted to Anthony's pioneer childhood experiences among the Indians of Alabama. An attempt has also been made to discuss the religious labors, friendships and also hostilities of the Indians that were incident to the establishment of Cherokee County, Alabama.

Institutional Graphics For The Trinity Montessori School, Robert Whiting

Theses

Not provided.

An Experiment In Painting: The Quiet Siren, Jeanne Harris

Theses

Not provided.

Contemporary Mural For The Entrance Area To The College Of Business, Joseph Schuler Jr

Theses

Not provided.

Borderline Imagery In Painting, Emery Bopp

Theses

None provided.

A Mural For The New Xerox Plaza Midtown Rochester, New York, Leonard Else

Theses

None provided.

The Design And Applications Of A Corporate Image For Strasenburgh Planetarium, Victor Costanzo Jr

Theses

None provided.

Exploration Of Some Aspects Of Society Through Painting, Paul Garland

Theses

None provided.