Digital Commons Network^™

Importance And Implementation Of Explanation In Expert Systems, Kurt R. Heilbronn

Theses

Explanation is crucial in persuading others of the correctness of our beliefs to gain acceptance of our conclusion. Early research into expert systems focused on methods for reasoning. However it became apparent that the ultimate success lay in the ability to gain user acceptance by explaining the reasoning behind the conclusion. This study examines explanation from a social and an implementation standpoint. The social aspects of explanation provide insight into the role of naturally occurring explanations and listener expectations. Examination of research expert systems with explanation facilities and modifications of a simple Prolog expert system shell demonstrate the techniques required …

Colorpalette: A Knowledge-Based System To Select Colors For A Palette, Penny Bauersfeld

Theses

This paper describes ColorPalette, a knowledge-based system to advise users in selecting colors for a palette used for computer screen design applications. Color selections and advice are based on principles of human computer interface design and color theory, gathered through both research and knowledge acquisition from a human expert. The user may put together various color combinations to form acceptable and successful palettes. The system consists of a color data-base of facts formulated from an HSV color model, a knowledge base that can reason about these colors and their relations to each other, and a set of rules based on …

Variable Size Block Truncation Coding With Adaptive Bit Plane Omission For Image Compression, Hieu T. Pham

Theses

A modified version of the Block Truncation Coding (BTC), which is a non-information preserving image compression technique, is studied. The first modification is the introduction of variable block sizes to the standard BTC technique. The second modification is the adaptive omission of bit planes. Threshold selections for this modified BTC technique are analyzed in the context of the human visual system. Modified BTC techniques are compared against the standard technique from the point of view of visual image quality and compresion efficiency.

Graphical Programming System For Dataflow Language, Jyun-Jier Roland Jehng

Theses

Dataflow languages are languages that support the notion of data flowing from one operation to another. The flow concept gives dataflow languages the advantage of representing dataflow programs in graphical forms. This thesis presents a graphical programming system that supports the editing and simulating of dataflow programs. The system is implemented on an AT&T Unix^TM PC.

A high level graphical dataflow language, GDF language, is defined in this thesis. In GDF language, all the operators are represented in graphical forms. A graphical dataflow program is formed by drawing the operators and connecting the arcs in the Graphical Editor which …

A Simulator For The Intel 8086 Microprocessor, William A. Chapman

Theses

This project was originally suggested by J. Schueckler as an aid to teaching students the Intel 8086 Assembly Language. The need for such a tool becomes apparent when one considers the expense of providing students with dedicated hardware that rapidly becomes obsolete, but a Simulator which could be easily updated and runs on a general purpose or timesharing computer system would be accessible to many students for a fraction of the cost. The intended use of the Simulator therefore dictated that it precisely model the hardware, be available on a multiuser system and run as efficiently as possible. An additional …

Application Of Computer Techniques In Groundwater Contamination Studies, Komratchi Raman

Theses

A study has been undertaken to provide insight into two related aspects of groundwater contamination studies - contaminant transport behavior and its analysis by modeling techniques. The study reviews recent research that explains some of the uncertainties in the transport and fate of chemical contaminants in groundwater. Approaches to modeling techniques and data reduction are developed to illustrate their usefulness in analysing existing groundwater data, and to make predictions on the future water chemical characteristics. Three types of study areas have been chosen for this purpose, each representing a different type of groundwater contamination problem. The first study area has …

Approximate Methods For Analysis And Design Of Channel And Tee Shaped Reinforced Concrete Columns Under Axial Compression And Biaxial Bending, Chayan Bhattacharyya

Theses

Combined Bending and Axial Compression for irregular shaped (such as L-shaped, Channel shaped, T-shaped) reinforced concrete short column is a common design problem. Current code provisions and the available design aids do not offer an insight into the determination of strength and ductility of biaxially loaded reinforced concrete columns. The reason is that the information on the behavior of irregular shaped reinforced concrete members under combined biaxial bending and axial load is not well known. They are usually overdesigned and this may cause the structure to be stiffer, which may result in loss ductility when applied to seismic regions. Thus …

Microprocessor Controller For A Multi-Targets System, Shoeineng Lin

Theses

This thesis presents a microprocessor controller for a multi-targets system, which is designed by a direct digital control in the modern computer-aided manufacture system. It is made up of digital control theory, computer hardware configuration and software algorithm. An example is illustrated by IBM PC/XT computer. In this example, the control laws of three simple targets are developed and implemented by C-language. Simultaneously, the computer self-test routines, such as CPU, ROM etc, are developed by intel-8088 assembly language.

Interfacing Of The Digital Spyghnomanometer [Sic] Ds-165 To The Intel 8052ah Basic Based Single Board Computer, Rakesh P. Patel

Theses

The aim of this thesis is to collect the measured data from the blood pressure measurement unit to the single board computer and to store the data for the analysis purposes.

Visual Organizational Systems For The Graphic Designer, Michael P. Agoston

Theses

None provided.

Separation And Characterization Of Biologically Significant Chemical Classes In Airborne Particulate Organic Matter : Measurement Of Selected Chemical Classes In Freshly Collected Air Samples, Xueying Sun

Theses

Since hazardous materials present in airborne pollutants can affect human health and environmental quality and most of the specific compounds remain uncharacterized, a study was conducted to characterize airborne particulate extractable organic matter (EOM) with respect to chemical composition. Specifically, a number of chemical classes including N-heterocycles, phenols, quinones, carboxylic acids, and especially N-nitrosamines were tested using an integrated chemical class screening system.

The inhalable particulate matter was collected, using a high volume 10 um inlet sampler, on the roof of Tiernan Hall, New Jersey Institute of Technology, which is located off Warren Street in Newark. Sequential solvent extractions yielded …

Robotization For Assembling Small Parts, Frank J. Valese

Theses

The thrust of this paper is directed toward establishing a roboticized small parts assembly line where none currently exist. Technical and pragmatic requisites were established and reviewed prior to installing the proposed robotic workcell. Although the specific model chosen for discussion is the locksmithing industry, the procedures followed, the design tools utilized, and the methods of job-costing employed apply equally to other small parts industries.

Basic industrywide considerations reviewed for each robotization effort included:

1. Choosing the proper application for robotization
2. Obtaining management support and labor input to insure the success of the project
3. Deciding on the economic and production goals …

Design And Implementation Of A Local Area Network Utilizing Intel 310/80286 Systems, James Leach

Theses

The goal of this work was to provide the foundation for a course in networking by developing the hardware and software for a token ring Local Area Network (LAN). Any course work in networking would focus on the emerging International Standards Organization (ISO) Open Systems Interconnections (OSI) model. This model provides a seven layered structure, where each layer performs some logical aspect of the communication process. Thus, the software developed would have to provide the functionality of a multiple layered design, implying multiple tasks communicating by operating system primitives. Also, a simplified design would minimize the time for those students …

Testing Of Ultrasonic Bonding In Microcircuits, Ioannis Andrea Phiniotis

Theses

A model for the ultrasonic bond as used in making microcircuit interconnections was studied. This model was based on Bowden & Tabor's dry friction theory and Mindlin's analysis of Hertz's model for elastic deformation under compressive and shear stresses. To develop a well-controlled bonding system, the critical bonding machine parameters were determined, and a high-frequency capacitor microphone was fitted to the bonding machine to monitor the tool tip oscillation. Application of these techniques made it possible to control the parameters of the machine to ±5%. Flip-chip bond studies were made using this machine. The data obtained were consistent with the …

A Mathematical Analysis Of An Electronic Dot Generating Scanner For Dot Resolution And Tone Reproduction, Frederick K. Waechter

Theses

An electronic dot generating scanner is a complex machine. This complexity is based in the photographic methods which the scanner is designed to duplicate. This study addresses the mathematical principles of the entire scanner system. This paper was intended to provide an improved understanding of the scanner system. The hypothesis states that a mathematical analysis with experimental verification can be developed to accurately model the internal optics, tone reproduction, and output dot characteristics of an electronic dot generating scanner. The analysis begins with a functional block diagram, which shows the information flow through the scanner. This diagram breaks the process …

Degradation Of Aniline And Nitrobenzene In A Photoreactor, Michael Joseph Sowa

Theses

Degradation of aniline and nitrobenzene in aqueuous solutions was studied. Five reaction processes were utilized, including ultraviolet light, ozone, O₂/UV, O₃/O₂/UV, and H₂O₂/UV. A 30 liter semi-batch gas sparged reactor was used for the development of reaction rate and mass transfer parameters in these systems. The results were used to model a continuous stirred tank reactor (CSTR) for the O₃/O₂/UV case. Reasonable agreement was obtained for steady state exit concentrations between the experimental data and those predicted from the model.

Development Of An Off-Line Robot Programming System For Computer Control Of Ge P50 Robot, Subhas Vitthal Shetty

Theses

The General Electric P50 Robot has Teach Pendent Programming facilities. It is provided with a Computer Linkage - a communication control unit, but is not eguipped with any software which uses this linkage to communicate data between the computer and the P50.

A study was made of many Robot Programming systems existing today. The facilities a programming language should have was noted, and a Robot-Level Programming System was developed, which remote controls the P50 robot.

The program is written in TurboPascal and is developed on IBM PC/AT for communication between the P50 and an IBM PC Compatible Personal Computer. The …

Evaluation Of Word Processing Cost Effectiveness, Nicholas E. Tedesco

Theses

The objective of this thesis is to examine the use of word processing technology to determine if its implementation is a cost effective investment. This will be accomplished by comparing the cost of a typewritten page before and after the implementation or upgrade of word processing equipment. The degree of utilization and the impact of utilization on standard costs will also be examined.

Significant difficulty was encountered attempting to locate and compile statistical information on word processing. Therefore, a questionnaire was developed and distributed to the 100 largest public and 100 largest private companies headquartered in New Jersey, requesting information …

Application Of Robots In Developing Countries, Badi Uddin

Theses

The increasing versatility of robots has led to their use in a widening range of applications. The robot population is growing at a remarkable pace. The increase in the use of robots in industry has changed the standards of productivity and quality. During past years, as labor costs has risen, safety and environmental regulations have been changed to provide more benefits to workers and capabilities of robots became more sophisticated. Therefore, robots became a valuable piece of production equipment.

Now, robots are able to perform all kinds of hazardous and heavy duty jobs which are harmful to human life or …

Productivity Through People : The Hewlett-Packard Way, Charles Serwedes

Theses

Petri nets have become a powerful tool for modeling and analyzing asynchronous concurrent systems. In this thesis I apply Petri nets for analyzing and modeling a flexible manufacturing workstation (FMS). A manufacturing workstation is modeled by using Colored- Timed Petri nets, with the consideration of tool handling, raw materials, quality checking and the reuse of reworkable scraps. A simulation program for a simplified Petri net model of manufacturing workstation is described and the production throughput is computed.

Establishing And Utilizing The Concept Of Socio-Technical-Spatial Systems In The 21st Century Work Environment, Asmita Gami

Theses

Productivity is an important aspect of work environment in a market economy. It depends on the integration of the efficiency of the technical system, the social structure of the organization as well as the spatial environment. The relationship of productivity to the spatial environment within the changing work environment is the primary concern of this research. The research attempts to identify where we are now in terms of our understanding of productivity and its relationship to the work environment as well as the historic evolution that has brought us to this stage. In addition, this project attempts to explain the …

A Theoretical Investigation Of The Possibility Of Coexistence Of Three Microbial Populations Competing Purely And Simply In Configurations Of Three Interconnected Chemostats, Shiuan-Wu Chang

Theses

It is known from the literature that out of any number of microbial populations competing purely and simply in an environment which is homogeneous and has time invariant inputs (e.g. in an ideal chemostat) only one population can survive in a steady state under any conditions. However it has been proven possible for two competitors to coexist in two interconnected chemostats, which indicates that spatial heterogeneities may lead to coexistence of pure and simple competitors. The present study investigates whether the spatial heterogeneities created by three interconnected bioreactors may lead to a mixed culture (i.e. coexistence) of three pure and …

Approaches To The Synthesis Of Dentin Bonding Agents Containing Vinyl And Carbamate Functional Groups, Steven W. Amato

Theses

The synthesis of four new monomers containing vinyl and carbamate functional groups was attempted. The desired products were N-m-methacryloxyphenyl-O-phenyl carbamate, N-p-methacryloxy-O-phenyl carbamate, m-N-phenylcarbamato-2-methacryloxyethoxy benzoate, and p-N-phenylcarbamato-2-methacryloxyethoxy benzoate. The carbamate functional group was derived by the Lewis Acid catalyzed reaction of meta-aminophenol, para-aminophenol, meta-aminobenzoic acid, and para-aminobenzoic acid with diphenyl carbonate. The vinyl function was derived, in the case of the aminophenols, by reaction with methacrylyl chloride, and in the case of the aminobenzoic acids, with 2-hydroxyethyl methacrylate.

Partial products only were prepared, these being the two carbamate functional phenols, the two carbamate functional benzoic acids, the two methacryloxy functional derivatives …

Reaction Of Hydrogen With Methylene Chloride And Carbon Tetrachloride At High Temperature, Hun Tsao

Theses

The reactions of methylene chloride and carbon tetrachloride in hydrogen in the temperature range 500 - 1000° C were studied using tubular flow reactors of three diameters. (ID: 0.40, 1.05, 1.60 cm). Residence time range was from 0.3 to 3.5 seconds. Temperature profiles of the reactors was kept within +/- 5° C of central 85% for the 18 inch long reactor, at a total pressure of 1 atmosphere. No chlorinated hydrocarbon products were observed at or above 950° C. The major products in this temperature range were CH4, C2H₂, C2H₄, C2H₆ and HCl.

The pseudo …

Reactions Of Atomic Hydrogen With Dichloromethane In A Flow System, Shun-Hsien Huang

Theses

The reaction kinetics of atomic hydrogen with dichloromethane were studied in a tubular flow reactor with 2.6 cm I.D. Pyrex tube at pressure of 2.1 to 2.7 torr absolute and room temperature . Hydrogen atoms were generated by a microwave discharge plasma. Atomic hydrogen concentration were measured by chemiluminescence titration with nitrogen dioxide. The concentrations of hydrogen atom ranged from 2.0 * 10¹⁴ to 5.0 * 10¹⁵ atoms per cm³. Chlorocarbon reagent and products were monitored by online gas chromatography (FID).

Major products observed were hydrogen chloride and methane. The conversion of dichloromethane increases first to …

Pontryagin's Maximum Principle, Chirasakdi Varuntanya

Theses

In a detailed presentation of Boltyanskii "elementary" proof of the Pontryagin's Maximum Principle, several gaps have been filled in the original one: The control processes which are considered in this paper are described by a system of ordinary differential equations, hence the uniform approach to O of certain O(ε) is proved. Moreover, a complete proof of a theorem about convex cones in Rn and a theorem from Topology are presented. An example of time optimal control illustrating the principle is also solved.

Factors Influencing The Rate Of Sensitization And Maximum Sensitivity Of An Iridium (Iii) Surface Sensitized Silver Bromide Emulsion, Nimrod Natan

Theses

A monodisperse silver bromide emulsion was surface sensitized with potassium hexachloroiridate (III). The rate of sensitization and maximum photographic sensitivity were determined at different sensitization conditions. The effects of silver ion concentration (pAg), length of sensitization, and the presence of the thiocyanate onion during sensitization were defined. The highest gain of sensitivity of an Iridium sensitized emulsion over an unsensltized emulsion was 0.43 log H units at pAg 9 after 30 minutes of after-ripening at 70 C. The highest gain of sensitivity of an iridium + thiocyanate sensitized emulsion over an unsensltized emulsion was 0.55 log H units at pAg …

Reactive Ion Etching Of Polyimide Films Using A Radio Frequency Discharge, James G. Fagan

Theses

None provided.

A Prognostication Of Just-In-Time Efficacy In American Manufacturing, Mark L. Kahan

Theses

"Just-in-time" is a Japanese philosophy of business management which has as its ideal the complete elimination of waste in the process of adding value to a product. Some experts have contended that its basis is not cultural, but technical, and is thus applicable to American manufacturing concerns. After an initial exploration of economics and productivity concepts, and of U.S. logistics, inventory, and purchasing practices, the matter of Just-in-time will be addressed, both theoretically and in terms of Japanese business and labor relationships and culture. Then, based upon a case study consisting of observations made at a traditional American manufacturer, this …

Post-Cracking And Nonlinear Microcomputer Analysis In Reinforced Concrete Beams, Pedro Ricardo Munoz Arias

Theses

The main objective of this Thesis work is to study a non-linear behavior of reinforced concrete structures using the Finite Element Method and an incremental load strategy.

Bond between steel and concrete is simulated using linkage spring elements. The proposed model has a generalized crack propagation capability and it accounts for nonlinearities due to cracking and material properties.

Load-displacement relationships describing the aggregate interlock along the crack and the dowel action at the level of reinforcement are incorporated into a computer program.

A simply supported reinforced concrete beam is analyzed from zero load until failure. Contributions to the shear capacity …