Digital Commons Network^™

Removal Of Vocs From Waste Gas Streams By Cyclic Membrane Separation Techniques, Gordana Obuskovic

Theses

In this study, new separation techniques called Flow Swing Membrane Absorption Permeation (FSMABP) and Flow Swing Membrane Permeation (FSMP) were used for the removal of the volatile organic compounds (VOCs). In both cases, processes are cyclic in terms of feed flow while desorption of the VOCs is constantly taking place. The transport mechanism in the FSMABP process is selective permeation followed by absorption of the VOCs into the stagnant nonvolatile absorbent liquid on the shell side of the membrane module and then desorption through a similar polymeric membrane. In the FSMP process, VOCs selectively permeate through the membrane into the …

Pollution Prevention In The New Jersey Chemical Industry : Motivations And Barriers To Commitment, Judith A. Thornton

Theses

This study of the New Jersey Chemical Industry identifies the primary elements that lead to or inhibit company commitments to pollution prevention. A direct measure of facility pollution prevention commitment is developed that takes into account: organizational support attributes, past reductions achievements, current methods implementation, process reduction goals, and special environmental initiatives. The "P2 Commitment Index" allows for categorization of facilities so that the needs and interests of varying groups may be differentiated.

Higher level commitments are associated with: establishment of company pollution prevention policy, setting of prioritized facility goals, and measurement and reporting on pollution prevention progress. Facilities at …

Advanced Characterization And Leaching Behavior Of Hexavalent And Trivalent Chromium From Waste Material, Erik Moerman

Theses

In this thesis we employed advanced characterization techniques such as XRF, XRD, XPS, SEM, and EDS to provide detailed information about the chromium waste _ specifically chromium valence states (Cr(VI) and Cr(III)), and their chemical association with other phases in the waste matrix.

The removal of Cr(VI) was accomplished by leaching with aqueous solutions containing inorganic anions such as Cl^-, SO₄^2-, PO₄^3- and others. Cr(VI) can be released from the waste by a combination of desorption and ion exchange processes. The efficiency and kinetics of displacing CrO₄^2- from the waste by …

Designarchive Online, Kimberly Edberg

Theses

None provided.

Design Process And Digital Technology: A Perspective For Education, Susan Wieters

Theses

None provided.

Beef You Feel Good About, Courtney Grim

Theses

None provided.

Sub-Micron Pmos Transistor Using Electron Beam Lithography, Mark Klare

Theses

The design, simulation, fabrication and testing of .75um PMOS transistors is studied in this work. The process uses Direct Write Electron Beam Lithography for all lithography steps. The process is matched for the tool set at The Rochester Institute of Technology and their accompanying process hurdles. As of the beginning of this work, there had been no work done on obtaining a sub-micron transistor due to limitations in the optical lithography tools available at The Rochester Institute of Technology. A process flow that is robust, but as efficient as possible is used to obtain a working sub-micron PMOS transistor.

One, C. (Catherine Jaruzel

Theses

None provided.

Tashlich - "And You Shall Cast", Rachel Kanter

Theses

Art is my means of communication. It is a visual statement of my conscience and soul. Clay is the medium I use, to help me create my statement. I use it as my visual typewriter. It is how I speak without writing, and communicate to people through their eyes. Clay is an extension of my mind and hands. The development of the initial idea, to the actual work of art, happens naturally when I use clay. It enables my ideas to become dimensional realities. The following thesis is a documentation of the process I used, from the preliminary thoughts, to …

Organic Psychology And The Universe, Steven Alles

Theses

None provided.

Graphical Visualization Of Control System Performance, Jeffrey Marx

Theses

University courses on control system design have traditionally relied on the root locus approach to predict transient system output. However, the increasing speed of personal computers has made it practical to design control systems by simulating their time and frequency responses. This thesis presents an interactive Matlab program for control system analysis and design. The system is defined in Simulink with a user-specified gain parameter of variable magnitude. The gain parameter is automatically varied by the program within user-specified bounds. Several surface and performance plots are produced which describe system time-domain and frequency-domain performance. The system root locus is also …

208 Mill Street: An Historical Renovation, Lisa Ilene Studint

Theses

None provided.

Digital Archiving And Reproduction Of Black And White Photography, Susan J. Hicks

Theses

Capturing and reproducing black and white images are common problems for high quality print reproduction. This study compared the monotone reproduction quality of the Kodak Photo CD Master technology to the standard methods currently being employed using high resolution scanners such as the Agfa Horizon Scanner and the Optronics ColorGetter II. The Kodak Photo CD Master and the Optronics ColorGetter II were used to scan the original 35mm black and white film negatives. The negatives selected represent the various tonal ranges encountered by professional photographers. High key and low key images were included in the selection since these are the …

Facsimile Reproductions Of Art With The Use Of A Digital Camera System, Jamisen Gingerelli

Theses

Reproductions of original works of art have played a major role in the existence and growth of the graphic arts over the centuries. The one concept that has not changed over time is the difficulty in reproducing art that is true to the original. Using a high-end scanning system is one known method that is able to achieve high quality reproductions. However, it has several limitations. The purpose of this research was to verify that a digital camera system combined with color separation software can be used as an alternative technique to create facsimile reproductions of art. Five pieces of …

Investigation Into The Capturing, Manipulating, Calibrating And Outputting Of Black And White Images On A Xerox Docutech, Sebastian Schwarz

Theses

It is the purpose of this investigation to determine whether or not the output quality of black and white images on a Xerox Docutech can be enhanced. The Docutech is a black and white digital printing device. In times of a growing demand for on-demand printing and publishing, the Docutech not only has to reproduce text and graphics properly but also has to cope with the increasing task of rendering images. Although there are multiple options to improve the output quality, this project focuses on the impact of image capturing on the output. As a result of this investigation, a …

An Investigation Into The Cost Justification Of Computer-To-Plate Systems, Jessica Murphey

Theses

In the history of technological development, it is usually the case that the technology is available before mankind understands the full potential of its use. Thus it should come as no surprise that CTP (Computer-to Plate) technology is currently waiting for its advantages to be exploited by the graphic arts' market. This was evidenced by the heavy saturation of platesetters presented at DRUPA 1995 (the largest printing trade show in the world), which demonstrated that CTP is no longer a research and development experiment but a marketplace reality and the topic of considerable discussion. Surprisingly, the response of the printing …

Balance In Memory, Junichiro Baba

Theses

None provided.

A Conservation Plan For The Juan Mendez Photographic Collection, Fernando Osorio

Theses

This thesis is put forth to document not only the outcome of two years worth of intensive investigation and preparation on the Juan Mendez Photographic Collection, but more importantly it offer viable conservation measures. The first two chapters describe the context of the life and work of Juan Mendez, a Mexican photographer who was active in the City of Puebla, Mexico during the years of 1926 to 1962. The third and fourth chapters are a report of the conservation survey that took place through various visits to the collection of his works during the course of one year. With the …

An Interview With Mac Mcgrew: American Typeface Historian And Typographer, Karin Yvonne Hurlburt

Theses

Mac McGrew gained a reputation within typographic circles as a leading type expert through his work as Type Director with Ketchum, MacLeod and Grove in Pittsburgh, his many articles published in various typographic magazines and newsletters, as well as his membership in several printing guilds. With the publishing of his book, American Metal Typefaces of the Twentieth Century in 1993, his position as the foremost American type historian was established. Mac is one of a select group of people who have detailed knowledge of the transition from metal type to current digital methods. This knowledge must be preserved to educate …

A Three-Dimensional Model Of Pulsatile Flow At An Arterial Bifurcation, Andrew Hayes

Theses

Atherosclerosis in known to form at sites of predilection. These sites are typically areas of reduced pressure or shear stress. In the thesis a link between hemodynamics and atherosclerosis formation will be investigated. In the study three-dimensional pulsatile flow at a simplified carotid artery bifurcation has been modeled with computational fluid dynamics (CFD). A flow visualization experiment has also been performed on a glass replica of the bifurcation to verify the CFD results. An intense literature review has been included in the thesis to assimilate all of the published work in the area.

The Colorimetric Characterization Of Crt-Based Digital Film Recorders, Helen Hae-Kyung Shin

Theses

Digital film recorders play a key role bridging digital imagery and photographic media. The purpose of this research was to characterize the relationship between digital drive signals controlling the exposure of positive 35mm film and the spectral transmittance of the processed film. First, the Beer-Bouger law was verified relating dye concentration and spectral transmittance. Second, an empirical nonlinear relationship was found between status A densities and dye concentration to facilitate the conversion from integral to analytical density alleviating the need for spectral transmittance measurements. Third, the relationship was found between digital drive signals and integral density. This complex relationship modeled …

Digital Halftoning Using Fibonacci-Like Sequence Pertubation And Using Vision-Models In Different Color Spaces, Huanzhao Zeng

Theses

A disadvantage in error diffusion is that it creates objectionable texture patterns at certain gray levels. An approach, threshold perturbation by Fibonacci-like sequences, was studied. This process is simpler than applying a vision model and it also decreases the visible patterns in error diffusion. Vector error diffusion guarantees minimum color distance in binarization provided that a uniform color space is used. Four color spaces were studied in this research. It was found that vector error diffusion in two linear color spaces made no reduction in the quality of halftoning compared with that in CIEL*a*b* or CIEL*u*v* color spaces. A luminance …

Visual-Based Error Diffusion For Printers, Zhenping Bu

Theses

An approach for halftoning is presented that incorporates a printer model and also explicitly uses the human visual model. Conventional methods, such as clustered-dot screening or dispersed-dot screening, do not solve the gray-level distortion of printers and just implicitly use the eye as a lowpass filter. Error diffusion accounts for errors when processing subsequent pixels to minimize the overall mean-square errors. Recently developed "model-based" halftoning technique eliminates the effect of printer luminance distortion, but this method does not consider the filtering action of the eye, that is, some artifacts of standard error diffusion still exist when the printing resolution and …

Synergistic Qualities Of Form And Space, Catherine Dicesare Smith

Theses

None provided.

Pink, Melissa Grillo

Theses

None provided.

Lyme Disease, Carolyn Nichols

Theses

None provided.

Surface Design Combining Various Techniques, Mi-Hee Ha

Theses

None provided.

Optimization Of Slice Thickness In Multispectral Mri Tissue Classification Of Brain Tissues, Nagesh Narendranath

Theses

In recent years, magnetic resonance imaging has proven to be an important imaging modality for diagnosing and locating pathology. Recent studies have shown that multispectral tissue classification (MTC) may segment pathology from healthy tissues. Several studies have been done to classify brain tissues such as white matter (WM), gray matter (GM) and cerebrospinal fluid (CSF) using MTC with slice thicknesses ranging from 5 to 10 mm (Kohn, 1991; Fletcher, 1993; Kao, 1994). In one of the previous studies (Fletcher, 1993) MTC has been used to classify brain tissues such as WM, GM, CSF, adipose tissue (AD), muscle (MS) and skin …

Extraction, Recovery And Separation Of Some Organic And Inorganic Pollutants By Polyurethane Foams And Other Extracting Agents, Mahboob Hassan Saleh

Theses

Many substances pollute the marine and air environments but non-biodegradable compounds are the most dangerous. Heavy metals and most of the pesticides are known for their high toxicity. Mercury and lead in particular tend to accumulate in liver and kidney and inhibit the biosynthesis of heme protein because of their affinity for thiol and phosphate containing ligands. Thus, it affects the permeability of the membranes of kidney, liver and brain cells. Soluble inorganic mercury (II) species can be transformed into methylmercury under aerobic conditions by the actions of microorganisms. The target organ of methylmercury in humans is the brain where …

See Through The Dark -- Reincarnation, Su-Chin Wang

Theses

None provided.