Digital Commons Network^™

Digital Network Implementation By Xilinx Asic Technology, Maoling Shen

Theses

Using XACT(XILINX Advanced CAD Technology) to implement a digital network, which is used in an 8052AH-BASIC single board computer system as one of its interfaces called MIDVOX.

MIDVOX comprises of three major parts.

1. Voice Detector

2. Waveform Generator and Frequency Divider

3. Signal Processing and Storing Unit(PSU)

Digitized voice signals are inputed to the network as BEG. Their periods are then counted by a 12 bit binary counter. Finally they are stored into memories by means of a series of 12 bit binary numbers. The value of the number depends on the length of a period of that particular …

Liquid Crystal Display And Thermal Printer For A Single Board Computer, Shenq Jyi Wang

Theses

This thesis deals with the installation of a LTP451 printer mechanism (LTP) and a Dot Matrix Liquid Crystal Display module (LCD) in a SINGLE BOARD COMPUTER (SBC). The communicative method between SBC and LTP is serial, but that between LCD and SBC is parallel.

The Evaluation Of The Ti-Speech System On Pc Computer, Ying Wu

Theses

A PC-TI-SPEECH system has been set up by the author of this thesis on the IBM PC/AT compatible computer. The basic functions of the system are as follows: data acquisition, internal signal synthesization, signal processing and speech recognition. The system is built up by a PC, TI-Speech Hardware kit, MADCAP software package,TI-Speech Tool kit. This thesis covers the setup, evaluation and operations of the complete PC-TI-SPEECH system, development of the system for further applications, and operations of running some evaluation programs generated by doing this thesis.

The Fast Fourier Transform In Assembly Languages Of Microprocessor 68000 And Microcontroller 8052, Hari Kumar Baldawa

Theses

In this report, the 256 point radix-2 FFT algorithm is written in assembly languages of microprocessor 68000( or 68008) and microcontroller 8052( or 8051). The data used can be upto 30 bits, of which the least significant 12 bits are assigned for fractional part.

The FFT code in assembly of 68000 is written for Sinclair's QL-100 personal computer with 68008 CPU. The SuperBASIC programs are used to access and test the performance of FFT code. The average time of execution falls between 0.3 to 0.4 seconds for 256 discrete points.

Again, same FFT algorithm is written in assembly language of …

Multichannel Priority Interrupt System, Claudio Bernal

Theses

There is in our current industrial milieu an increasing demand for systems capable of detecting and processing a large number of analog signals for the computer.

The present work offers an approach for a multichannel real time acquisition system which will find a wide variety of applications in machine automation, process control, musical instruments, remote sensing, etc.

The system presented in this thesis follows traditional instrumentation architecture and implements that architecture around the latest microcontroller, the 8052. The system, capable of assigning a processing priority to a large number of incoming events, is demostrated for 40 channels. It is fast …

The Switch Capacitor Biquad Filter And It's Application On Active Filter Design, Sung-Chiang Chang

Theses

The purpose of this subject is to use the programmable switch capacitor filter to design a traditional analog filter which usually cause a tedious job on finding a group of values for resistors and capacitors. We start from the basic concept of switch capacitor, then we learn to use auxiliary equipment to design a filter. To design the desired filter, first, we have to find the s-domain transfer function, then transfer it to the z-domain. After we found the coefficients of z-domain transfer function, we have to implement this on the auxiliary equipment. Then we will get the desired filter.

Reliability Of Existing Bridge Inspection And Evaluation Procedures, Leroy R. Klouser

Theses

In general, bridge inspection is subjective since visual observation and the basic inspection tools cannot reveal hidden structural deterioration, such as corrosive and delaminated rebars embedded in the concrete. Based on the NJDOT SI&A report, a scale (9 to 0) is used in rating five bridge components. This approach seems reasonable, since the time span, manpower and cost are limited throughout the counties of New Jersey. On the other hand, based on the scaling system, the SI&A reports can vary depending upon the exposed surface appearance and the experience of the bridge inspector.

Water, de-icing agents, freezing and thawing cycles …

Synthesis And Characterization Of A Novel Blocked Isocyanate Dental Adhesive Based On Diphenylmethane - 4, 4' - Diisocyanate, Yangming Lin

Theses

The dental adhesive monomers based on diphenylmethane - 4,4 - diisocyanate (MDI) were prepared and studied in this research. The diisocyanate, MDI, was first reacted with hydroxyethyl methacrylate (HEMA) to form an intermediate adduct. This adduct had an active isocyanate end group. It was then bonded with o-chlorophenol (OCP), a blocking agent, to produce a blocked isocyanate monomer.

The new blocked isocyanate (HEMA-MDI-OCP) was found to have an average value of more than 1200 psi in tensile tests measuring its adhesion to dentin slices.

Comparative Adsorption Studies On Clay Soils, Prasanna R. Mysore

Theses

An investigation has been made to study clay as sorbent in the treatment of the hazardous contaminants of potential sludge leachate emanating from industrial landfills.

Experimentally was studied six highly toxic and hazardous chemicals, which include: phenol, aniline, cyclohexanol, cyclohexanone, cresol and monochlorophenol. Vermiculate, Kaolinite, Attacote and Hectorite clays were studied as the sorbent material. Removal of organic pollutants were measured using a total organic carbon analyzer (TOC).

Results indicate that these clays can be used for some treatment of the above mentioned organic compounds. The study shows that removal of organic pollutants by clay depends on several factors, such …

Programming For The Prediction Of Thermodynamic Phenomena, One Kwon Rim

Theses

A Thermodynamic Calculation Program was developed. The program contains the calculation procedure for VAPOR/LIQUID EQUILIBRIUM(Isothermal P-X data and T-X data), HEAT-OF-MIXING(liquid mixture data) and LIQUID/LIQUID EQUILIBRIUM SEPARATION data. The program may optionally use the Knox Molecular(GAM), UNIQUAC, NRTL, Wilson and Redlich-Kister equations, and is prepared to accept any kind of model which will be developed in the future. This program also performs parameter file creation, parameter input, updating of parameters, and is structured to allow implementation of data regression when program is updated. Comparison and analysis of each function were executed using this program. It was revealed that VLE(Vapor-Liquid Equilibrium) …

Oxidation Of N,N-Dimethylformamide And N,N-Dimethylacetamide In A Photoreactor, Su-Jen Syu

Theses

Oxidation of N,N-dimethylformamide(DMF) and N,N-dimethylacetamide(DMA) was investigated in a 30 liter semi-batch reactor. Five reaction processes were studied by using UV alone, O₃ alone, O₂/UV, O₂/O₃/UV and H2 O₂/UV respectively. Mathematical models have been developed to interpret the reaction kinetics. Reaction rate constants and mass transfer coefficients were determined by using Rosenbrock Hillclimb optimization algorithm. The experimental data and the predicted results from the models were compared. The kinetic parameters obtained from the previous semi-batch modes were applied to the continuous stirred tank reactor (CSTR) system. Results of this work show …

Multaid, A Consultant For Multi-Microprocessor Network Selection, Bernabe Javier Arruza

Theses

A knowledge based system has been developed to enable an architectural designer to select an adequate interconnection network to be utilized in a parallel or distributed processing system. It is implemented using the Knowledge Engineering Environment, K.E.E., package from IntelliCorp.

The user will interact with the system through symbolic representation. From the selected symbols, the knowledge base system will identify the most appropiate network for the given application. The system will display the network topology along with all the information and results of all pertinent calculations corresponding to the given network. The program will also display the rule driven search …

Hydrodechlorination Reactions Of Trichloroethylene And 1,1 1, Trichloroethane Over Alumina Supported Palladium Catalysts, And, Trichloroethylene Over Nickel Catalyst, Atul R. Shah

Theses

The primary objective of this study was to evaluate the viability for conversion of chlorocarbon wastes solvents into useful hydrocarbons and HCl by catalytic reduction. The second objective was to investigate the pathways for these hydrodechlorination reactions over the chosen alumina supported Palladium and nickel catalysts as well as determine selectivities, product distribution, and deactivation mechanism.

Reactions of trichloroethylene with hydrogen over alumina supported palladium catalyst was studied in temperature range 40°C to 57°C at one atmosphere total pressure. The major products observed were ethane and (cis) 1,2 dichloroethylene with trace products chloroethylene, chloroethane and (trans) 1,2 dichloroethylene. At the …

Thermal Desorption Of Hazardous And Toxic Organic Compounds From Soil Matrices : Dichloromethane, Chloroform, Benzene, Toluene, 1-Chloronaphthalene, 1, 2, 4-Trichlorobenzene, Arun S. Chemburkar

Theses

This research project was undertaken to understand the process of desorption/removal of organic compounds from soil matrices under the influence of temperature and gas purging. The project was divided in two parts :

A. Plug deposition experiments: Columns packed with soil matrices were purged with an inert gas under isothermal conditions. Organic compounds were then introduced as a plug on the front of the column by on-line injection. The rate of passage (due to sequential adsorption/desorption) of the plug through the various soil matrices was measured by a gas chromatograph equipped with a flame ionization detector (FID). The compounds studied …

Closed Loop Machining In Precise Turning, Ching-Song Wei

Theses

Closed loop machining (CLM) is one of the most reliable ways to automate tool setting, part positioning and measurement on CNC machine tool. It not only can assure the quality of the product but also can improve the productivity of the machine. This paper describes the CLM from basic turning concept to application of CLM, including the feature of Mark Century 2000T and the programming methods in precise turning.

The hardware and software requirements for CLM system were presented. The algorithm for CLM programs was developed completely with a series of flow charts. Then, on the base of two projects, …

Morphological Analysis Of Microvessels Using High Voltage Electron Microscopy (Hvem), Ibm Personal Computer And 3-D Reconstruction Software, Wieslaw Slawomir Krajewski

Theses

The mesenteric arterioles (outer diameter < 100 µ) from a normotensive and a hypertensive dog were perfused in situ, excised, post-fixed and embedded in Spurr medium block. Thick serial cross sections (0.5 µ) of the vessels were obtained from hand formed mesas and placed on Formvar coated slot grids.

The cross sections were subjected to High Voltage Electron Microscopy (HVEM) and five or more electronmicrographs were taken to cover the individual cross sections. The prints of electronmicrographs were linearly enlarged (3X) and made into photomontages of sections. The membrane contours in the montages were traced on transparent overlays, producing polygons which in turn were traced on GTCO digitizing pad. All polygons were labeled, color coded and stored in IBM PC's filing system. The vessels were reconstructed from up to 100 whole cross sections and subjected to cell compartmentalvolume analysis. The reconstructed images can be …

Column Base Plate Under Eccentric Loading, Ja-Pung Sheu

Theses

The understanding of the strength and deformational behavior of column base plates is of paramount importance in the analysis and design of pipe and pressure vessel supports. Both elastic and plastic stress analyses, using ANSYS computer program to simulate the strength and deformation of column base plates anchored over a concrete block with an eccentric load, are presented in this study. The work presented here includes the effects of bolt pretension and prying actions of stressed flexible plates.

The analytical results were benchmarked with the published test data by D.P. Thambiratnam and P. Paramasivam for the maximum longitudinal strain along …

Multiple-Screen Panning System, Abdo Fathy Youssef

Theses

There is a need to provide graphics capabilities for the objective of "Group Graphics". This is the ability of a group of humans to work collaboratively on the same diagram. It is the intent of this project to provide some of the fundamental software tools to allow a group of individuals to deal with a "mosaic" form of graphics made up of many separate screens that can be panned and conceptually edited by each individual who is working on portions of the overall document.

Simple tools are provided for the creation of graphics screens as well as saveing and retrieving …

Engraving By Cnc Milling Machine, Ram Tatiparti Reddy

Theses

A detailed study of NC, CNC and Engraving is presented. Engraving of letters of different sizes is done using the present technology in a CNC milling machine. This thesis also contains the design of a communication interface between Mark Century One Plus controller and different peripherals. Software for Engraving and Communication between the controller and a PC is developed. The generated NC code from software is simulated on the controller and the product is cut.

A Modified Extended Kalman Filter As A Parameter Estimator For Linear Discrete-Time Systems, Bruno Johannes Schnekenburger

Theses

This thesis presents the derivation and implementation of a modified Extended Kalman Filter used for Joint state and parameter estimation of linear discrete-time systems operating in a, stochastic Gaussian environment. A novel derivation for the discrete-time Extended Kalman Filter is also presented. In order to eliminate the main deficiencies of the Extended Kalman Filter, which are divergence and biasedness of its estimates, the filter algorithm has been modified. The primary modifications are due to Ljung, who stated global convergence properties for the modified Extended Kalman Filter, when used as a parameter estimator for linear systems.

Implementation of this filter is …

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.

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 …

Transient Analysis Of Macromolecular Blood-Tissue Exchange In Microvascular Bed, Alex Yefim Bekker

Dissertations

Movement of macromolecules across microvascular walls was studied in the hamster cheek pouch with intravital fluorescence microscopy. A graded series of Fluorescein Isothiocyanate labeled Dextrans(FITC) of 20,000 -70,000 molecular weight were used as representative macromolecular tracers. The time dependent extravasation of FITC-Dextrans was video taped for approximately two and a half hours. Permeation of macromolecules from individual microvessels was quantified by digital video image processing. Histograms of the light intensity distributions for selected fields at various times have been measured and used to construct integral optical density - time profiles of the extravasated fluorochromes for particular leaky sites. An integrated …

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 …

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 …