Digital Commons Network^™

Ms. Pacrat: A Feeling, Thinking Machine, Lorraine D'Ortona

Theses

Since before the time of the first digital computers, the workings of the mind have been compared to that of a machine. With the onset of the discipline of Artificial Intelligence a truly organized attempt has been made to build intelligent machines that model the mind. Many interesting programs have been built, but the legitimacy of their success is a matter of great controversy. None of the AI programs developed so far have come close to the true power and intelligence of the brain. Expert systems, for example, are the most success ful commercial AI programs, and even they have …

An Investigation Of The Effect Of A Reverse Engineering Tool On The Software Maintenance Effort, Leonie Menco Fernandes

Theses

In order to determine the effectiveness and efficiency of software engineering aids in software program maintenance, productivity improvements as measured by the time to task completion -- for a representative sample of Software Engineers were assessed, with and without the use of a commercially available CASE tool. These improvements were also measured in relation to the level of experience of the Software Engineer and the complexity level of the program maintained. Results show that the CASE tool appeared to have a significant impact on the productivity of the Software Engineers included in the study. The effect of the tool in …

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 …

An Integrated Circuit X-Ray Sensing Array Based On A Cmos Flip-Flop Cell, Huan-Chung Lee

Theses

A novel X-ray sensor IC has beeli designed which counts individual photons at rates up to 5,000,000 counts per second. A two-dimensional X-ray flip-flop sensor array, consisting of an 30 x 30 matrix of CMOS flip-flop sensors integrated in one chip together with an internal clock generator and access selection circuitry is described. A flip-flop sensing cell contains cross-coupled CMOS devices, one of which is connected to a large-area reverse-biased diode. A large area diode exposed to X-ray flux triggers the flip-flop. By reading out the final stable state of the flip-flop, the absence or presence of an X-ray photon …

Evaluation Of Rates Constants In An Isothermal Turbular Reactor, Yu-Hsin Lin

Theses

To view upon an incompressible laminar-flow fluid in fully developed in a plug reactor, in which a layer of catalyst coated on the inside surface of this reactor. Two kinds of reaction will occur : one is bulk ( homogeneous ) reaction, i.e., the reaction of reactants themselves; another is a first-order irreversible catalyst ( heterogeneous ) reaction, i.e., the reaction of reactants and catalysis.It is apparent that two reactipn rate constants, Κ_b for the homogeneous reaction and Κ_ω for the heterogeneous reaction, will be caused because of these two reactions

One partial differential equation after working of …

How Effective Is The Union Title Vii Grievance Procedures, Yu-Wen Liu

Theses

Title VII forbids certain kinds of discrimination in employment and establishes a federal forum to enforce employee's rights. It means an employer discriminates against any individual in hiring or discharging, because of such individual's race, color, religion, sex, or national origin.

It has been a long time to use Title VII in unlawful practice employment. Therefore, in my thesis, I investigate the development of labor law, special for the development of Title VII of the Civil Right Act of 1964. Secondly, I emphasize on the individual and union that they can effectively make use of their rights under Title VII. …

A Petri Net Simulation Tool, Ashish H. Shukla

Theses

A user friendly and highly interactive graphical tool for drawing, editing and simulating translated Petri Net models is developed. This SunView based tool allows simulation to be carried out in the 'step' and 'run' modes. In the 'run' mode it produces a log file of the simulation run which consists of: a) total number of tokens in the net; b) names of the transitions that fired; and c) the system state reached after each step's execution. The tool offers a new solution to the problem of modeling concurrent and interlocked systems, such as computer systems, modular software, flexible manufacturing systems …

Electrical Measurements Of Mos Structures Fabricated On Etched Silicon Surfaces, Venkata Ramana Vankayalapati

Theses

This thesis details the electrical characterization of thermally grown thin SiO₂ films on virgin and plasma etched silicon surfaces. The electrical characterization techniques employed for the present study are high frequency Capacitance Voltage(C-V) and Current-Voltage(I-V) measurements. The structures used in this study are Al/Polysilicon/SiO₂/Si/A1 capacitors fabricated on n-Si and p-Si substrates. These capacitors with areas in the range of 0.001-0.05 cm₂, were made using various plasma process conditions and etch reactors.

Based on the experimental results of the C-V anlaysis, in comparison of the controls samples with the plasma treated samples, we could not see …

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 …

Effective Disciplinary Process In Management, Ying-Lung Teng

Theses

The application of discipline is the punitive behavior by the employer to suppress the employee's undesired behavior in the work place. However, there are many considerations have to be concerned when applied discipline.

An organization has to support the supervisor when applying discipline because it gives the supervisor the great power in dealing with problem workers. Organizational policy has to specify the degree of discipline and timing of discipline in order to make the supervisor and the employee have an idea about discipline.

The employee becomes satisfied with supervision when the supervisor uses good leadership skills to manage. In order …

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). …

A Study Of Machining Parameters To Optimize Surface Finish In Metal Cutting Through Cnc, S. Waseem H. Zaidi

Theses

The purpose of this thesis is to find the relationship between surface finish and machining parameters. A series of experiments have been performed at shop floor of NJIT, on MAZAK(CNC turning center), using two different cutting tool materials(high speed steel and cemented carbide) and a workpiece of Aluminium. The results have been then evaluated and analyzed to see the effects of various combinations of cutting conditions, that is, feed, speed, and depth of cut. Recommendations have been made on the basis of analysis to estimate the minimum and maximum values of surface roughness with respect to the cutting conditions for …

How Affirmative Is Affirmative?, Shu-Fen Hsu

Theses

Since January 1989, the US Supreme Court has launched a major offensive on affirmative action and civil rights law. The biggest target of the attack is Title VII of the 1964 Civil Rights Act, which bars employment discrimination. As a result, access to private and public contracts for all but the largest black businesses will virtually be nonexistent. For black means decreasing employment and mobility opportunities in the workplace. In addition, complainants will have a more difficult time bringing forth and winning discrimination suits. Racial tension now has a stronger - although subtler - presence in the US. The ascent …

Integrated Component-Based Computer Design Modeling System : The Implications Of The Representation Of Control Parameters On The Design Process, Allen D. Jablonski

Theses

The design process is dependent on a clear order of integrating and managing all of the control parameters that impact on a building's design. All component elements of a building must be defined by their: Physical and functional relations; Quantitative and calculable properties; Component and/or system functions. This requires a means of representation to depict a model of a building that can be viewed and interpreted by a variety of interested parties. These parties need different types of representation to address their individual control parameters, as each component instance has specific implications on all of the control parameters.

Representations are …

Electromagnetic Transients Program Interfacing, Enhancement And Comparison With Spice, Siswa Trihadi

Theses

The Electromagnetic Transients Program (EMTP) is a computer program used to simulate high speed power system transients. The EMTP input data structures and the rules in setting up the input data file are described in this thesis by means of two sample cases i.e an RLC series circuit and a sin le line to ground fault in power system.

The EMTP input data are very detailed an highly-structured column-dependent. To improve the user-friendliness of EMTP by ignoring the difficulty of arranging the column structures, this thesis presents the EM P User Interactive Program. Sample cases using this interactive program are …

Electron Field Emission Through A Very Thin Oxide Layer, Guang Yang

Theses

Field Emission of an emitter covered with a very thin oxide layer is modeled and calculated numerically. The additional barrier due to the oxide layer is included in the tunnelling problem by using the standard WKB method and tunnelling transmission matrix method. The following physical parameters are considered: the oxide barrier height, the oxide conduction band edge electron effective mass, and the oxide dielectric constant. Compared with the Fowler-Nordheim equation, which was derived for a clean metallic emitter, the calculation of this work shows a reduction of the emission current density from an emitter covered with an oxide layer a …

Simulation Study Of Monolithic 8-12 Micron Gaas/Algaas Multiple Quantum Well Infrared Image Sensor, Ye Zhu

Theses

The design of a monolithic 8-12 micron GaAs/AlGaAs multiple quantum well infrared image sensor has been tested by computer simulation using PISCES-IIB and SPICE3B.1 software packages. The device structure is in the form of a monolithic GaAs/AlGaAs multiple quantum well (MQW) photoconductor integrated with a GaAs MESFET readout circuit. The readout MESFET's are located in the top layer of the MQW so that a relatively standard GaAs MESFET design and processing technology can be used. The theoretical feasibility of such a vertically integrated structure and the processing compatibility of GaAs/AlGaAs MQW and GaAs MESFET's were investigated in this work.

Our …

Stabilization/Solidification Of Organic Containing Wastes Using Organophilic Clay And Coal Fly Ash, Edith Lagoutte

Theses

The relative merits of eight different coal fly ashes for use in the stabilization/Solidification of a waste containing both heavy metals and pentachlorophenol were investigated. Also studied, was the possible use of either untreated or treated (with hexade-cyl ammonium bromide) clay to enhance the stabilization of the organic. The sample composition was : 62% foundry baghouse dust (or 60% if 2% clay as added to the sample), 4.5% cement, 14% coal fly ash, 19.5% water. Pentachlorophenol was chosen as represen¬tative of the organic contamination. All tests were performed after curing the samples at 22°C, 98% Rh for 28 days. The …

Preparation And Testing Of Novel Blocked Isocyanate Dental Adhesives Based Upon Hydroxyhexylmethacrylate, Yunwen Ye

Theses

A new kind of dental adhesive, O-Chlorophenol-TDI-HEMA-Pentaerythritol (TDI), was studied under long term conditions. The test was done in human third molar teeth which had been extracted 7 days to 6 months. Both citric acid and non citric acid pre-treatments were used on dentin surfaces. Based on Causton's[9] mineralizing solution pre-treatment method, we have used 3 kinds of mineralizing solutions, ITS, 0.5% CaCl2, NaF, as pre-treatment solutions. There were no significant differences between the citric acid and non citric acid pre-treatment. The ITS mineralizing solution pre-treatment caused a large increase in bond strength. The average bond strength of 1791 psi …

Estimating 3-D Motion And Structure Parameters Of A Rigid Planar Object By Establishing Landmark Correspondences, Herman Agustiawan

Theses

The application of a landmark based approach in recognizing 3-D rigid planar objects[3] along with two different motion and structure estimation algorithm [21][23] have been studied to perform motion and structure estimation tasks of moving objects. The recognition algorithm is based on a sphericity value derived from affine transformation that maps feature points in the object under observation from first to second view in the 2-D image space. The motion and structure estimation algorithm is based on a unique mapping given four or more feature point correspondences.

More than ten experiments have been done including small and large rigid motions. …

Implementation Of Object Oriented University Database Using Vodak/Vml-0 Prototype, Abhay V. Bhave

Theses

In recent years object - oriented programming has gained a tremendous popularity in the design and implementation of emerging data - intensive application systems. Object oriented knowledge based approaches have proved to be very powerful vehicle when developing, integrating complex systems.

Using a University database demonstrated here is an object oriented model. This model uses VODAK/VML-0 prototype which was developed by GMD - IPSI, Darmstadt FRG. The Conceptual Schema of this database was done using The Dual Model, but as the current VODAK/VML version does not support dual model, the schema was modified before use. There are 167 classes defined …

A Transistor Delay Model Based On Charge Conservation, Bharatsingh K. Bisen

Theses

Delay information of a circuit is often used in the areas of timing verification, timing analysis, race detection and circuit optimization. Given a circuit its delay can be estimated by various simulation techniques. SPICE is one of the simulation techniques, but it is seen that with the increase in the complexity of the circuit the SPICE circuit simulation technique to obtain delay information become cumbersome and computationally too expensive. So as to overcome the above disadvantages of the circuit simulation technique to obtain delay information various timing delay models were developed. However general survey of most of these timing delay …

Digital Correlators For Spread Spectrum Communications, Raymond B. Chadwick

Theses

The design and application, in spread spectrum communications, of a digital correlator implemented in a Xilinx Field Programmable Gate Array is presented. Spread spectrum communications, correlators and Xilinx Field Programmable Gate Arrays are first introduced. A digital correlator is designed and implemented in a Xilinx Field Programmable Gate Array. Cascading correlators to increase the correlation dimensions is next explored. The maximum operating frequency of the digital correlator is calculated and simulated to be 40 Mhz; a significant speed improvement over commercially available correlators such as those from TRW.

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 …

Analysis Of Field Distribution Of A Dielectric Resonator And Its Applications, Manohar R. Kamath

Theses

Dielectric resonators (DR) are suitably shaped objects made of high dielectric constant materials like TiO₂, BaO, ZnO, and accessory ingredients, which can function as electrical resonators covering a very wide frequency range upto 40GHz. The physical dimensions of dielectric resonators are in mm range. High dielectric constant material resonators seem to be ideally suited for microwave applications because of their miniature size, low loss, insensitivity to magnetic dc biasing fields, and ability to concentrate large RF magnetic fields in small volumes. However temperature stabilization of dielectric resonators is an important consideration as the center frequency is a function …

Holographic Photo-Induced Electrochemical Etching Of Diffraction Grating In N-Inp, Pei-Chen Pien

Theses

Maskless laser-induced etching and plating is a novel technology for etching a three dimensional profile on semiconductor wafers. Using this technique, we may avoid the contaminating mask stage and achieve in-situ monitoring of the on-going process. In this thesis, we have presented findings on light diffraction from an etched pattern in a thin-film cell configuration. We suggest that the etched pattern develops mostly linearly in time with this arrangement, although indirect monitoring of the reaction process such as by light diffraction, should be carefully interpreted. In-situ light diffraction monitoring appear as if light was scattered from an etched pattern developed …

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) …