Digital Commons Network^™

Modeling The Effect Of Ink Spread And Ink Penetration On Tone Reproduction, Michael Alber

Theses

In ink jet printing when ink is printed on top of the paper, two effects occur that have an effect on the dot that is printed. One effect is that the ink spreads out laterally and the other is that the ink penetrates into the paper. A tone reproduction model was developed that mathematically modeled the effects ink spread and ink penetration have on tone reproduction. Since the optical behavior of ink penetration is very complex, the model only included characteristics that were expected to be significant. This model was built from the foundation of another tone reproduction model which …

Methods Of Digital Classification Accuracy Assessment, Jeffrey R. Allen

Theses

Landcover classification of remotely sensed data has found many useful applications in industries such as forestry, agriculture, and defense. With the push toward end users, class maps are often incorporated directly into geographical information systems for use in solving large, complex problems. However, errors are inherent in the classification process. The importance of assessing the thematic accuracy of data derived from remote sensing platforms is universally recognized and has motivated much research. Classification accuracy assessment is often required to determine the "fitness of use" or suitability of a data set for a particular application. Failure to identify the magnitude of …

Design And Evaluation Of Multimedia Extensions For The Dlx Architecture, Brian Hughes

Theses

Multimedia computer architecture extensions for Hennessy and Patterson's DLX architecture are developed following the study of multimedia applications and existing multimedia architecture extensions. Support for the extensions is added to a VHDL superscalar DLX CPU model as well as a DLX assembler. Key functions used in digital video encoding and decoding are modified to use the extensions, and simulations are undertaken using the VHDL model to determine the speedup offered by the extensions for these functions. The results of the simulations are used to calculate the application speedup based on the function speedup and the fraction of the time that …

Vhdl Design Of A Des Encryption Cracking System, Thomas Oelke

Theses

This thesis illustrates the design of a chip to crack a message encrypted with Digital Encryption Standard (DES). VHSIC Hardware Description Language (VHDL) is used to describe the system. Part of the design criteria of the system is to provide a scalable and reconfigurable set of DES building blocks in VHDL. In order to provide this, a modular design with a pipeline architecture is employed. This system could be synthesized to produce actual hardware in either an ASIC or FPGA part. Simulations using Synopsys with Actel's 3200DX FPGA library demonstrate that the design could be run at over 16Mhz. Because …

An Experimental Analysis Of The Mpeg Compression Standard With Respect To Processing Requirements, Compression Ratio, And Image Quality, Daniel Howard

Theses

As computer use and capabilities have grown, people have become more interested in being able to create and access varies types of multimedia content. The MPEG video compression technique provides a method for compressing video content down to a size that computers and networks can handle. To properly make use of this algorithm it is necessary to understand the trade-offs that exist when choosing among the various options of the MPEG algorithm. Background information on the MPEG-1, MPEG-2 and MPEG-4 algorithms is presented. This thesis then provides an understanding of the trade-offs of applying different compression and decompression options of …

Design Optimization Of A Xerographic Auger System, Kip Jugle

Theses

This thesis will show how the Taguchi technique can be applied to a complex system and can be optimized with a minimum number of tests. The focus of this thesis is the application of Taguchi methods to the optimization of a xerographic developer auger system. An auger system was optimized to minimize the toner concentration across the magnetic roll. By minimizing the toner concentration variation across the magnetic roll, the visual density variation on the customer prints can be minimized. The technique was applied by determining the proper control factors that can be used to minimize the variation of the …

A Study Of An Under Hood Automotive Air-Conditioning Component For The Purposes Of Noise And Vibration Reduction, Charles Depasquale

Theses

All automotive components are engineered to be as quiet and smooth running as possible. This takes into account structure borne noise as well as air borne noise. A standard air conditioning compressor is analyzed statically (outof- vehicle testing) in this study to better understand noise and vibration traits. Mode shapes of the compressor, associated with noise, are extracted in an operating frequency range and shown to be modeled after a simple two degree of freedom system. Bearing free play in the pulley is cited as another possible source of noise. Lastly, with the use of theoretical damping, the sound pressure …

An Experimental Determination Of Freeplay And Its Effect On Modal Complexity And Damping, Timothy S. Merle

Theses

This experiment is designed to address the effects of joint related nonlinearities on system parameters. Specifically, the effects of freeplay on the natural frequency, damping, and modal complexity. Many modal analysis techniques assume a system exhibits linear properties that are time invariant. Large structures are commonly constructed with several pinned and bolted joints and these joints can lead to gap and frictional-type nonlinearities. Joint nonlinearities will result in exaggerated damping estimates and complex time-varying mode shapes. These characteristics will result in incorrect modal parameter estimation when estimation assumes linearity. The experiment's intent is to examine nonlinearities and indicate methods of …

Kinetic Study Of Styrene/Maleic Anhydride Copolymers Using Succine Anhydride As The Model Compound, Barbara M. Jauch

Theses

The reaction of aniline with succinic anhydride, a low molecular weight poly[styrene-co-(maleic anhydride)], and a high molecular weight poly[styreneco-( maleic anhydride)] were used to determine if these polymer reactions are diffusion- or reaction-controlled. Kinetic study protocols were developed to determine the rate constants for the succinic anhydride/aniline model reaction and for the 50/50 and 86/14 copolymers. These protocols were then used to gather kinetic data. The succinic anhydride/aniline reaction was determined to be exothermic and to have an induction period. The succinic anhydride/aniline reaction was also determined to have an experimental rate constant of 13 L/molmin 25% at 67 +/- …

Relative Dentifrice Abrasivity On Dentin And Enamel, Laura Marchetti

Theses

The abrasive characteristics of six (6) brands of toothpastes on Enamel and Dentin material were assessed. Human teeth were sliced to expose the dentin surface and then polished using 3 μm and 0.25 μm diamond paste. The outside surface of the tooth (after slicing) was used "as is" for the enamel surface testing. The surface smoothness was evaluated prior to testing using a surface profiler and averaging four (4) to five (5) readings across the surface for each sample.

The tooth slices were then embedded into the acrylic plate surface by routing out an area with a dental drill and …

Analysis And Modeling Of Ultrasound Enhanced Soil Washing Process, Kamalavathany Rajaratnam

Theses

In this research, statistical analysis of data from ultrasound enhanced soil washing process was performed. The process was optimized using a statistical model. The model had four factors namely power, solvent:soil, surfactant, and dwell time as process variables. The percentage of removal efficiency was considered as the dependent variable. The results from two full and one partial factorial designs were analysed. Interactions up to third order were considered in the analysis, but the results from full factorial design showed that those of order higher than second had insignificant contributions to the removal of contaminants. Since the higher order interactions of …

An Investigation Into The Feasibility Of Utilizing Pneumatic Ultrasonic Devices Coupled With Pneumatic Fracturing In Enhancing Removal Of Volatile Organic Compounds From Soils, Hugo J. Fernandez

Theses

A bench scale investigation was conducted in a Plexiglass ™ Test cell 1 foot square by 2 feet in height, packed with 400 mesh sand to a density of 100 lb. /ft³. The sand was contaminated with a mixture of 10% ethanol and 90% water by weight having a total weight of 11.1 pounds, before it was packed in the test cell. A geotextile 1/2 inch thick was used as a simulated fracture and was placed 3 inches from the bottom of the tank. A siren and a whistle were tested in this fracture.

The data were divided …

Assessment Of Potential Operating Benefits Incurred By Implementing Iso 14001 : Five Case Studies From The New Jersey Chemical Industry, Stefanie Gitter

Theses

Environmental management is an important aspect of strategic planning and competitiveness for many businesses. Environmental management systems (EMS) are operating policies that are established to help a company measure progress towards goals set forth in a strategic environmental plan. A growing number of EMS models are being used by countries and industry groups, so the International Standards Organization (ISO) developed one model to prevent duplicate efforts which can result when companies try to meet the import requirements of different countries.

The ISO-EMS model is a series of standards, and ISO 14001 is the first to be published. Companies will be …

Decontamination Of Aquifers Via Air Sparging/Biofiltration : An Experimental Study, Armando Mora Tellez

Theses

In this study experiments were performed in order to show feasibility of an integrated air sparging/biofiltration process for cleaning contaminated groundwater. Feasibility was also meant in the sense of meeting regulatory constraints. Using toluene as model compound and changing flowrates for the sparged air, it was shown that despite fluctuations in the toluene concentration at the inlet of the biofilter, the concentrations at the outlet of the unit were essentially constant over long periods of time and remained below the levels dictated by environmental regulations. However an increase in outlet concentrations at levels not meeting regulatory constraints was observed after …

An Analytical Approach To Toxic Substance Replacement In Support Of Pollution Prevention, Ithan B. Zimmer

Theses

In support of pollution prevention and in accordance with Executive Order 12356 concerning pollution prevention, all federal agencies must comply with the Toxic Release Inventory (TRI) chemical release reduction and pollution prevention planning. The inventory lists hundreds of chemicals and choosing those to replace and finding actual replacement chemicals or procedures is not always clear. This study focuses on an analytical approach to this problem by understanding the application of two substances. The representative chemicals are two volatile organic compounds (VOC), ethyl ether and ethanol, used as solvents in ammunition manufacturing.

Thirteen military specifications provide the cases involving ether. Ethanol's …

Interactive Animated Storybook Based On Korean Folk Tale, Hyung-Joo Lee

Theses

The intended purpose of my project was to develop an interactive animated storybook for children based on a Korean folk tale. Unlike a traditional storybook, I created an interactive computer program for children with diverse interactive animations. I wanted to explore how multimedia design can be entertaining and educational simultaneously.

Development Of Methods For Field Determination Of Chromium (Vi) In Water And Groundwater, David John Chesbro

Theses

In this study, methods for the determination of chromium (VI) in fresh water at low ppb levels for the use under field conditions were developed. The plan was to devise a simple and inexpensive on-site field method which would be useable by people who are not professional chemists. An investigation was carried out to develop a preconcentration and determination procedure for the analysis of chromium (VI) using anion-exchange membranes and/or resins. The chromium (VI) would be sorbed to the solid support and then treated with 1 ,5-diphenylcarabzide, a specific colorimetric reagent for chromium (VI), which forms a red complex upon …

Discounted Art, Johnathon Schmuck

Theses

None provided.

Hanta Virus, Rhonna Brown

Theses

None provided.

The Future Wave: Redefines Contemporary Meal Preparation And Food Shopping Protocols, George Sordoni

Theses

None provided.

The Anatomy Of Information Design, Young-Kook Kim

Theses

None provided.

The New Thaipography, Chotima Vongviriyatham

Theses

This thesis is about designing a new Thai typeface. The project attempts to increase Thai typefaces options for Thai designers. The range of existing Thai typeface selection is limited, for use in text and display situations. There are several problems of Thai typeface usage at both the display and text type level. This project focuses primarily on the development of a new typeface for use in display situations. Thai designers use a single typeface for a wide range of products without regard for the differences between the products. Through attempting to solve the problem of limited options, this project includes …

The Impact Of Digital Imaging On Visual Communication, Holly Coulter

Theses

None provided.

The Life Cycle Of Moths And Butterflies, Walter Mary

Theses

Not Included

The Life Cycle Of Moths And Butterflies, Mary Walter

Theses

None provided.

A Critical Analysis Of Theatre Posters, Pei-Ying Wu

Theses

None provided.

Quiet Beauty; A Contemporary Vision Of Tea, James White

Theses

Not Included

Evaluating Information Design: An Online Study Guide Designed For A New Distance Learning Course, Clifford M. Commanday

Theses

This thesis focuses on the creation of an online module for a new course offered by the Rochester Institute of Technology (RIT), titled Twentieth Century Information Design. As an information design product, the module's intent is to enhance a student's perspective on the evaluation of information design through the presentation of a range of theories and their relationship to the processes of graphic design. This course, for which the online module was designed, has been developed jointly by the Department of Graphic Design and the Office of Distance Learning (ODL), and is sponsored by the Center for Digital Media. The …

Analysis Of The Thermoelastic Response Of A Semi-Space To A Short Laser Pulse, Gary Renz

Theses

A study of the thermoelastic response of a semi-space medium to a short laser pulse generated heat is presented. This study uses the generalized thermoelasticity theory proposed by Green and Lindsay. This theory generalizes the classical theory of thermoelasticity by developing hyperbolic heat conduction equations and temperature-rate dependent constitutive equations. By so doing, an inherent paradox and physically unrealistic result in the classical theory of thermoelasticity that proposes infinite speed of thermal responses through a medium is corrected. Its validity is justified by the satisfaction of Fourier's law by which classical thermoelasticity is based. The Green-Lindsay theory adopts two thermal …

Recollection And Memory, Kimberly Richard

Theses

None provided.