Digital Commons Network^™

A Comparison Of High-End Color System Halftones And Postscript-Generated Halftones, Mary Lee Schneider

Theses

The purpose of this study was to compare the quality of PostScriptgenerated four-color halftones to halftones produced by traditional high-end color systems. The quality issue is one that must be addressed before a decision can be made to move magazine production onto a complete desktop publishing platform. In moving layout and design functions onto a desktop publishing platform, publishers can take advantage of PostScript as a page-description language to electronically create complete pages. Electronic assembly would eliminate the mechanical stripping step, allowing great reductions in prepress manufacturing costs. There are two routes that can be taken to output these electronic …

A Survey And Analysis Of Algorithms For The Detection Of Termination In A Distributed System, Lois Rixner

Theses

This paper looks at algorithms for the detection of termination in a distributed system and analyzes them for effectiveness and efficiency. A survey is done of the published algorithms for distributed termination and each is evaluated. Both centralized distributed systems and fully distributed systems are reviewed. The algorithms are analyzed for the overhead and conclusions are made about the situations in which they can be used, i.e. an operating system, a real-time system, or a user application. An original algorithm is presented for the asynchronous case with first-in-first-out message ordering. It allows any process to initiate detection of termination and …

An Experiment In The Complexity Of Load Balancing Algorithms, Charles Carlino

Theses

Not provided.

Turret Envy, Gregory Owen Stanforth

Theses

Not provided.

Development Of A Selection Model For Package Structural Designs Which Optimize Flexible Manufacturing, Luke Faulstick

Theses

The purpose of this study was to develop a selection model to be used in the design of packages for flexible manufacturing. The model was developed by utilizing the concepts and philosophies of Just-In-Time (JIT), Total Quality Control (TQC), and Design For Assembly (DFA). A case study was used to demonstrate the model. The case study involved the design of a new package for an existing product utilizing the concepts as previously outlined. Reduced part count, use of standard materials, configurations and process, and process flow charting were all key components of the selection model. As flexible manufacturing becomes a …

Computer Classification Of Stop Consonants In A Speaker Independent Continuous Speech Environment, Michael R. Campanelli

Theses

In the English language there are six stop consonants, /b,d,g,p,t,k/. They account for over 17% of all phonemic occurrences. In continuous speech, phonetic recognition of stop consonants requires the ability to explicitly characterize the acoustic signal. Prior work has shown that high classification accuracy of discrete syllables and words can be achieved by characterizing the shape of the spectrally transformed acoustic signal. This thesis extends this concept to include a multispeaker continuous speech database and statistical moments of a distribution to characterize shape. A multivariate maximum likelihood classifier was used to discriminate classes. To reduce the number of features used …

A Knowledge-Based Approach To Understanding Natural Language, Bernard J. Huber Jr.

Theses

Understanding a natural language requires knowledge about that language as a system of representation. Further, when the task is one of understanding an extended discourse, world knowledge is also required. This thesis explores some of the issues involved in representing both kinds of knowledge, and also makes an effort to arrive at some under standing of the relationship between the two. A part of this exploration involves an examination of some natural language understanding systems which have attempted to deal with extended discourse both in the form of stories and in the form of dialogues. The systems exam ined are …

Electrostatic Discharge - Understanding And Controlling The Phenomenon: A Handbook For Packaging Professionals, Deanna Jacobs

Theses

This thesis is designed to be a handbook on the phenomenon of electrostatic discharge (ESD) and its deleterious effects on electrically-sensitive electronic devices. Packaging and handling of sensitive devices occurs at every step in the assembly of such devices. Once the hardware is designed (and this may include some ESD-protective mechanisms) , it is the packaging of ESD-sensitive devices that determines their ultimate fate: being 100% reliable, being among the "walking wounded," or being completely useless. Electrostatic discharge is a phenomenon experienced in many industries from foods to pharmaceuticals, aerospace to communications, medical packaging to explosives, military to optics, and …

Fast Multiplication Of Multiple-Precision Integers, Sonja Benz

Theses

Multiple-precision multiplication algorithms are of fundamental interest for both theoretical and practical reasons. The conventional method requires 0(n2) bit operations whereas the fastest known multiplication algorithm is of order 0(n log n log log n). The price that has to be paid for the increase in speed is a much more sophisticated theory and programming code. This work presents an extensive study of the best known multiple-precision multiplication algorithms. Different algorithms are implemented in C, their performance is analyzed in detail and compared to each other. The break even points, which are essential for the selection of the fastest algorithm …

Determination Of The Thermal Properties Of Thin Polymer Films, Duane A. Swanson

Theses

The purpose of this investigation was to analyze heat transfer characteristics of cavitated-core polymer films. The effects of thickness and composition on the insulative properties of thin polymer films were studied. Two experimental tests were developed to measure the heat transfer rate through a variety of thin films. One test apparatus was used to study convective and radiative effects while the second was used to study the conductive effects. A finite element model of a frozen food commodity wrapped in an insulative thin film was developed. Transient simulations were performed for the dynamic characterization of thermal wave propagation across the …

Astronauts And Xingu: An Exhibition Of Cultural Ideograms, Edward Mineck

Theses

The intention of my thesis is to alter some of American culture's prevailing sentiments on the relationship between: masculine and feminine; visceral and cognitive; natural and technological; as well as altering perceptions of the loci of power in our culture. The thesis exhibition was composed of seventeen gum bichromate assemblages composed of elementary images appropriated from popular media. Each composite piece is a recontextualization of extant representations. I have taken things from their typical or original context and re-presented them in a context that I have selected and directed. The new relationships established among the appropriated component images and the …

Algorithm Animation And Its Application To Artificial Neural Network Learning, Walter Bubie C.

Theses

Algorithm animation is a means of exploring the dynamic behavior of algorithms using computer-generated graphics to represent algorithm data and operations. Research in this field has focused on the architecture of flexible environments for exploring small, complex algorithms for data structure manipulation. This thesis describes a project examining two relatively unexplored aspects of algorithm animation: issues of view design effectiveness and its application to a different type of algorithm, namely back-propagation artificial neural network learning. The work entailed developing a framework for profiling views according to attributes such as symmetry, regularity, complexity, etc. This framework was based on current research …

Slotted Aloha Protocol For Packet Transmission Via Satellite Link : Throughput Performance Of Continuous Transmission Packet, Solon Karashialis

Theses

The throughput performance of multi-access schemes for data traffic through a satellite channel is analyzed in this paper. Three general schemes are described: channel reservation schemes, random access schemes, and padket reservation schemes. This thesis considers only the random access schemes. Analysis and comparison between ALOHA and Slotted ALOHA are made, but the main emphasis is on satellite channel throughput. A continuous transmission protocol for Slotted ALOHA is suggested in which each ground earth station repeats the transmission of each packet in a number of random repetition slots. The channel is idle when no ground station (GS) is transmitting on …

The Dewaterability Of Anaerobically-Digested Sludges, Hui-Ching Lee

Theses

Vacuum filtration is the most common method used for sludge dewatering. Filtering or dewatering was operated to reduce the moisture content of the sludge after anaerobic digestion treatment.

The main purpose of this study is to determine the effect of the operating conditions of anaerobic digestion system on specific resistance in sludge filtration. The anaerobic sludges used for the present study were produced from the conventional single stage system and the multiple-stage system. From the experimental results, presently obtained that it is possible to compare the advantage and disadvantage of the two different digestion systems.

In addition, the effectiveness of …

Trends Of Eom, B(A)P, Sulfates, And Nitrates In Air-Borne Particulate Matter In Eleven Proximate Locations In New Jersey During 1988, Sathish Pushpala

Theses

Air-borne particulate matter was collected at eleven proximate locations in New Jersey during the year 1988. Particulate matter was extracted in cyclohexane and acetone to separate non-polar and polar components. Particulate matter was also analyzed for B(a)P, Sulfates and Nitrates.

This report presents the inter-site and intra-site variation of concentrations of pollutants between summer and winter seasons. Levels of B(a)P varied from 0.12 to 0.03 ng/M³ between urban and rural sites. During winter, B(a)P concentrations were 5 times more than summer. Concentrations of Cyc which represent mostly primary pollutants, were found 3 times lower in rural sites. Ace fractions …

A Pc Based Computer Model With A Postprocessor For The Movement Of Groundwater, Joseph Byra

Theses

Currently available computer programs that model groundwater flow are inherently limited in their capabilities, in one way or another. Additionally, many of these computer programs are relatively inaccessible to the general user because they operate off of mainframe computers and sophisticated plotters. As a result, a simple to use computer program called 2DFLOW has been modified so it can be run on a personal IBM compatible computer. It models steady-state fluid flow through saturated porous media. In addition, a postprocessor called 2DPLOT has been developed. The postprocessor generates the equipotential contours and the flux vectors that describe the physics of …

A Proposed Model For Comparing The Performance Of Neural Networks And Statistical Approaches In Predicting Project Profits Of An Asphalt Paving Company, Josephine Giaimo

Theses

It is currently assumed that the performance of a model for predicting project profits of an asphalt paving company varies with an unknown number of parameters. An earlier study indicates that the parameters are not well understood (Berry, 1990). A search of the literature suggests that the available models usually are described by those who develop and use them as universally reliable and valid tools for solving complex problem (Allman, 1989; Bumke, 1988; Clark, 1988; Cohen & Howe, 1988; Fillon, 1989; Kling, 1990; Lawrence, Petterson, & Hartzberg, 1990; Marose, 1990; Pollak, 1988; Reynolds, 1988; Sullivan & Reeve, 1988; Thurber, 1988). …

Biodegradation Of Hexachlorocyclohexane In Sand And Wastewater Using Immobilized Phanerochaete Chrysosporum, Ajaykumar C. Gami

Theses

The present study was carried out in order to assess the ability of Phanerochaete chysosporium to degrade lindane (hexachlorocyclohexane) in sand as well as in water. It was found that the fungus is immobilized on saw dust, it is able to degrade lindane in a packed-bed reactor configuration, with a first-order rate constant of 0.00066min^-1. The fungus is also able to degrade lindane in sand. As with the packed-bed reactor, a supplemental carbon source (glucose) is required. In this study it was found that a glucose concentration of 20 gm/kg of sand, and 40% w/w moisture content, give …

Manufacturing Automation Protocol Implementation Guide, Richard H. Infantino

Theses

The purpose of this thesis is to provide a starting point for individuals seeking information on the Manufacturing Automation Protocol (MAP) Specification. This thesis is designed to be as comprehensive as possible, yet, still basic enough to be understood by an individual who may not be familiar with computers and networks, and how they function. The intent is to progress gradually from basic networking concepts and characteristics, to defining network requirements, and finally to network design and installation. At the conclusion of the paper is an Organized Method Approach to MAP network design and installation that could serve as a …

Performance Evaluation Of Extended Token Ring Network Under Message Priorities, Prakash B. Kukadia

Theses

Local Area Networks carrying multiple priority classes of messages have received considerable attention recently. A simulation model of a symmetric, priority based network, consisting of token ring networks interconnected by a bridge is implemented. Messages are divided into two priority classes, namely, high priority classes and low priority classes. Two different approaches are considered for transmission of high priority messages. [1] Each station transmits the same amount of high priority traffic when the token reaches the station, regardless of the time elapsed from previous token arrival. [2] The amount of high priority traffic transmitted by each station may vary at …

Temperature Scale-Up On Rotating Biological Contactor Nitrification System, Kuanchun Lee

Theses

The relationship between RBC scale-up factor (SUF) and wastewater temperature is successfully developed by using Dr. Wu's mathematical model as a basis and 114 sets of data from the operation of 8 full-scale and 5 pilot-scale RBC plants served for NH3-N removal. The SUF obtained from this study is put into practice to present the scale-up of hydraulic loading for basic full-scale RBC plant design when the pilot study results are known and the design efficiency is fixed. An additional study is made to investigate two different RBC products manufactured by Autotrol Inc. and Lyco Inc. in terms of the …

A Training Module For The Integration Of Text, Scanned Graphics, And Computer-Generated Artwork Into A Page Layout Program On A Macintosh Design System, Linda A. Jackson

Theses

The purpose of this study is to develop a training module for integrating text, artwork, and graphics into a page layout program. Currently, the information for successful integration must be referenced from several sources. By having the key elements of integration in one volume, users attempting to layout and/or design a publication using these programs will be able to proceed quickly with fewer technical problems. Rapid growth is predicted for computer-based tools in graphic design studios, advertising agencies, and magazines which normally use computer design stations. These computer design stations require proper training to be used cost effectively. Consequently, training …

Relationship Between Chromatographic Retention And Donor And Acceptor Numbers, Peter J. Michelsen

Theses

The prediction of chromatographic retention times for a wide range of chemical compounds has been a subject of interest and intense study during the past few decades. Several of these studies are discussed, in particular those which utilize empirical parameters of solvent polarity in a correlation to chromatographic retention. Several of these empirical scales of solvent polarity are discussed in detail. The compilation of accurate acceptor and donor numbers is thoroughly discussed. Correlation of some of these empirical parameters to the solvent's normal phase liquid chromatographic retention was attempted. The multiple variable correlation equation which resulted in the best correlation …

A Ccd Based Bidirectional Spectral Reflectance Field Instrument, Michael H. Davis

Theses

Accurate interpretation and maximum use of multispectral data acquired from spaceborne and aircraft instruments require increased knowledge and understanding of the bidirectional reflectance distribution function (BRDF) of earth scene elements. Knowledge of the relationships between the spectral characteristics and important parameters of earth surface features can best be obtained by carefully controlled studies over areas, fields or plots where complete data describing the condition of targets is attainable and where frequent, timely spectral measurements can be made. The Bidirectional Spectral Reflectometer (BuSTeR) described in this thesis was developed to provide the Digital Imaging and Remote Sensing Laboratory (DIRS) with the …

Comparison Of Methods For Generation Of Absolute Reflectance Factor Measurements For Brdf Studies, Xiaofan Feng

Theses

For remote sensing applications, there is a need for knowledge concerning the reflectance properties of natural and man-made materials as a function of measurement geometry and wavelength. This information is used to determine the so-called bidirectional reflectance distribution function (BRDF). This study is intended to generate an absolute bidirectional reflectance factor for BRDF studies. This is accomplished by development of a goniospectroradiometer which can simulate any source-sensor-target geometry. The spectral range is from visible to near- infrared (2500 nm) with a spectral resolution of 10 nm. The study involves both theoretical and experimental work for calibration of BRDF by: (1) …

Collage And Installations: Between The Sky And The Earth, Misun Hong

Theses

My work comes from my feelings about abortion. It is a difficult situation for all involved. It is a painful decision for a woman to make, one which not only affects her life but also that of a fetus and other people close to her. I wanted to inform others about the chaotic and complicated sadness that abortion brings to one experiencing it. A woman may ask, "Why do I have to make this decision? I have always tried to be a good person. Why me? Why woman? Why not men? Who's fault is this? I feel trapped, but in …

American Dreams, Mark Lyons

Theses

The intention of this thesis is to investigate metaphorical narratives about experiences in American life. The commentaries depict cultural ironies and satirical imagery of everyday activity. The vessel is used as a stage for these metaphors. I used various glazes, stains, and atmospheres in firing, multiple techniques in construction, and a collection of common historical and personal imagery in each piece. A narrative environment appeared to be the best mechanism to convey statements in the vessels. This body of work reflects many of the experiences I had as a child. These experiences translate into many of the values our society …

Modification Of Organic Polymers With Vacuum Ultraviolet Radiation From Inert Gas Plasmas Rotating In A Magnetic Field, Jian-Xin Chen

Theses

DC arc plasmas containing He and Ar, which were made to rotate by the application of a magnetic field, were used for generating vacuum UV light (VUV) to modify polymer surfaces. Polymers such as poly(tetrafluoroethylene) (PTFE), fluorinated ethylene propylene copolymer (FEP), polyimide (PI), UPDLEX-S and UPILEX-R were modified with and without optical filters for different exposure times. PTFE was also exposed to helium and argon arc plasmas at different exposure temperatures. After the treatment, the polymerfilms were measured by weight loss, contact angle and Scanning Electron Microscopy (SEM). Copper was sputter deposited onto some of the treated samples and the …

Striking Visual Contrasts, Pei-Yung Chou

Theses

In the thesis, I plan to make experiments mainly about blending graphic forms in painting, possibly combining all kinds of different forms that I am interested in, for instance, Expressionism, Hard-edge, Symbolism, Abstractionism, and Realism to create a striking visual contrast. Simultaneously, I hope to research the following areas during the development of the work. (They will influence the pictorial effects to some degree.): 1 The relation between the artwork and the exhibition space. 2.The extension of painting in terms of reconstituting or changing the order of complete paintings. In my final work, I spent most of my time on …

The Design, Fabrication, And Test Of A Cmos Operational Amplifier, Edward P. Sayre

Theses

The topic of this thesis is the design, fabrication, and testing of a CMOS operational Amplifier. This Operational Amplifier was first realized as a class design project for Advanced Analog IC design. Specifications for the device performance were determined by Dr. Fuller and Edward Sayre to enable the op-amp to be incorporated into a larger more complex design. The specifications of the operational amplifier were made to enable design integration into an amplifier which would operate in the audio frequency range. The main constraints placed on the design of the op-amp were low power consumption and a relatively moderate gain.