Digital Commons Network^™

Development Of 8052ah-Basic Based Single Board Computer Ii, Suping Lou

Theses

8052AH-BAISC Based Single Board Computer II ( SBC II ) is designed and developed for the application in biomedical instruments as an embedded central processing unit. SBC II offers powerful function in digital signal acquisition, storage and processing, smart on-board EPROM programming, various preipheries supporting and custom supervisor program. The techniques of design and development of SBC II includes computer aided circuits analysis and schematic, optimal design algorithms and computerized setting up SBC II prototype.

This thesis combines the analysis of SBC II circuitry, set up and operation of the complete computer aided electrical circuit design software OrCAD/SDT specifics in …

Synergistic Fillers In Polymer Concrete : New Composites, Syed Hassan Javed

Theses

The objective of this study was to examine the effects of synergistic fillers on underwater construction, burning and mechanical properties of polymer portland cement concrete(PPCC).

Fine grains of hydrous calcium sulfate, Trihydrated alumina, Calcium carbonate and fibrous unhydrous calcium sulfate were examined in PPCC. It has been observed that these synergistic filler improves the mechanical property (stress) and reduce the average time of burning of PPCC. With fixed quantity of polymer, the deterioration of PPCC in water increases by replacing the sand with above stated fillers.

Estimation Of Modified Proctor Densities Based On Visual Identification, Ramesh Damodaram

Theses

Often in construction jobs requiring controlled compaction, there is a delay involved in testing the soil sample to be used as a structural fill. Here a rational approach has been adopted to get these values from 600 test data available. Using these data, appropriate relationships between grain sizes, maximum dry densities and optimum moisture content were developed. From these, two tables were derived to estimate the maximum dry density and optimum moisture content based on grain size distribution.

In a fill control job, if the borrow pit happens to change, the field personnel could obtain soil samples and send them …

Implementation Of The Voice Processing System, Yang-Young Dan

Theses

The Voice Processing System is implemented by using XILINX Advanced Computer Aided Design Technology. It is also used as an interface to the 8052 AH-BASIC single hoard computer system.

The Voice Processing System ( VPS ) comprises three major parts:

1. Voice Detection Circuit

2. System Clock Generation & Synchronization

3. Signal Processing and Storing Circuit

The analog voice sip!gnals are the inputs to the first part of VPS. The digitalized voice is the output of this system.

In order to get precise output, the first part plays the roles of noise cancellation, zero crossing processing, and recognition.

For the …

Reliability Of Packaging In Microcircuits, Zia Iqbal

Theses

The semiconductor industry is faced with the problems of how to increase the level of reliability of semiconductor parts being used in the electronic systems which have had their lifetimes extended through new and better system design.

This paper deals with the reliability of packaging constructions commonly used in large scale integration / integrated circuits and will present the failure mechanisms and failure modes which can arise when proper processing is used. In addition, the materials used in each construction and how they affect reliabilty will be analyzed.

It is not the intention of this paper to present any new, …

Fetal Phonocardiography, Jeng-Kwan Lin

Theses

A reliable non-invasive tracking of the fetal heart rate from the maternal abdominal surface could be of significant diagnostic importance in the monitoring of pregnancies, not only for fetal heart rate assessment, but also for the observation of congenital cardiac malformations and transient difficulties during labor. Further, the fetal heart rate recording may be used to assess fetal heart rate variability in the antepartum period of gestation when it is not possible to obtain a fetal scalp lead electrocardiogram.

There are several methods being used to detect the fetal heart rate. Phonocardiography, abdominal electrocardiography and ultrasound cardiography are the three …

Independent Equations Method For Power System State-Estimation, Shun-Gee Lin

Theses

The problem of power system state estimation (PSSE) is to convert the available. redundant and noise contaminated measurements, and other information into a best estimate of the state of the system.

Methods to solve the PSSE, including the sub-problems of bad data presence detection, identification and reconstruction, are reviewed. The Independent Equations Method (IEM) was selected for in-depth study and analysis.

The tree method for bad data identification is tested and failed due to the suspected ill-conditioning of the sensitivity matrix. For bad-data reconstruction, the IEM fails as described. Modifications that saves computing time and ensures reconstruction success are presented …

High Frequency Gaussian Beams Solution Of A Plane Wave Coupling Into Cylindrical Cavity, Christine Issa Mourad

Theses

Propagation of high frequency fields as a superposition of Gaussian beams instead of geometrical ray fields has potential advantages in complicated environments because the beams do not fail in ray optic transition regions. While the Gaussian beam method can be made rigorous through self consistent stacking of displaced and tilted beams on a Gabor phase space lattice, with retention of full beam spectra, computation is facilitated when the propagation domain is covered with paraxially approximated nontilted beams. The spectral deficiencies introduced by this simplified propagation model depend on the propagation environment. They are examined here for a plane wave coupling …

Image Enhancement And Edge Detection Using Fuzzy Algorithm, Samir Patel

Theses

A method of image enhancement and edge detection by computer using the fuzzy set is illustrated. The algorithm involves extraction of fuzzy properties corresponding to pixels and then succesive application of fuzzy operator 'contrast intensification' along with smoothing in the fuzzy property plane before detecting its edges. The property plane is extracted from the spatial domain using S, π, and (1- π) functions and the fuzzifiers. Edge detection is achieved using KIRSH operator. A computer routine is developed and the effectiveness of the algorithm with different value of the system parameter is demonstrated on different images. The digital computer HP …

Study Of Dynamic Cmos Families And Development Of Certain Guidelines For Logic Synthesis, Vinay Santurkar

Theses

This work studies in detail two dynamic logic families, namely Zipper and Nora. It compares their performance using SPICE, a popular circuit simulator. Results show that a novel clocking scheme and a different latch circuit for the Nora pipelined structure can push its maximum clock rate of CMOS Dynamic circuits higher. It also ascertains whether the increased complexity of NORA is justified compared to the simpler Zipper circuit. It is shown that for very long logic chains, Nora works faster than Zipper. The work also presents some guidelines for synthesis of logic functions using CMOS Dynamic Cells. It shows that …

Integration Of Cad/Cam System Into A Waterjet Cutting Cell, Sanjay C. Shah

Theses

The work is intended to bridge the gap between CAD and CAM fora waterjet cutting cell. The output of CAD is used by CAM directly through the software interface developed. To achieve this, a postprocessor is designed for a two-dimensional system for the series 8200 Allen Bradley's 5-axes Robot Controller. Calma's DDM & DIMENSION III interactive graphics system implemented on VAX was used for the part design. The postprocessor is a computer program, written in the structured FORTRAN, that is unique for a given machine-tool/controller combination. The conversion of the coding and recording format of the APT file to the …

Automatic Generation Of Robot Paths For Waterjet Cutting From Autocad Drawings, Samir Vij

Theses

The automatic generation of robot paths for a commercial water-jet cutting system by establishing a link with a commercial CAD system, in an attempt to achieve paper-less manufacturing and to minimize human interface is the objective of this thesis.

Water-jet cutting is an emerging technology with unlimited potential for a wide variety of manufacturing applications. Water-jet cutting systems integrated with robotic work cells allow the user to cut a variety of parts through part programs generated for robot controllers. The system employed is an Ingersoll-Rand water-jet cutting system, the movement of which is controlled by an Allen-Bradley 8200R programmable robot …

Research, Development, And Evaluation Of A Solid State Transformer, Robert Michael Joseph Wozniak

Theses

The analysis and design of a solid state step down transformer is presented as part of a research study which reviews novel approaches to the development of high frequency power magnetic apparatuses and applies available theory to produce a solid state counter part. The resulting circuit exhibits the potential for efficiency as high as 85%, low output ripple, regulation that is comparable with other modes of power conversion and the ability to provide localized on-board power.

Comparative Energy Analysis Of An Office Building Using A Microcomputeromparative Energy Analysis Of An Office Building Using A Microcomputer, Dale Krasnoff Bromberg

Theses

An energy analysis was performed on an office building using two different software packages - ASEAM and Trakload. The structure studied was the P.S.E. & G. headquarters in Newark, N.J.. The results of various parametric runs were compared. Then results from one of the programs were compared with results of a study carried out by Tishman Research Corporation and Jaros, Baum & Bolles, consulting engineers.

Although the two software products had variations in input requirements, overall the results of the two programs were similar. The overall deviation for total energy consumption between the two programs was between 3% and 15%. …

Study Of The Structure And Capacity Of Construction Industry In Pakistan, Tayyab A. Ansari

Theses

The construction industry is the second largest sector in Pakistan's economy after agriculture. It is a fragmented industry which includes very small and very large contracting groups. It includes professional groups such as architects, engineers, management personnel etc. Major part of this industry is dominated by material's suppliers, vendors etc.

In the light of the developments which have taken place particularly over the last ten years, the study has covered the capacity of the construction industry in terms of estimated output, availability of manpower, demand and production of building materials , financial problems, credit, quality of work, the role of …

Pentachlorophenol And Oxygen Consumption Of Immobilized Mixed Bacterial Culture, Tesfamariam Stephanos Tsadwa

Theses

This study was undertaken to investigate the effects of Pentachlorophenol (PCP) concentration on oxygen consumption of immobilized microbial cells. The microbial population, from a municipal wastewater treatment plant, was immobilized in calcium alginate gel. The following studies have also been conducted in this project:

1. Comparison of the effect of PCP concentration on oxygen uptake between immobilized and free cells.
2. Comparison of the effects of PCP concentration on oxygen uptake between acclimated and an unacclimated bacterial beads.

Dissolved oxygen concentration was monitored using a flow Clark-type oxygen probe, in a micro-assay bioreactor. It was found that PCP concentrations higher than 2000ppm …

Design And Implementation Of A Simulator For A Local Area Network Utilizing An Ibm Pc/At Or Compatible Computer, Christian G. Midgley

Theses

The purpose of this project is to provide a fixture which may be used as a local area network for a course similar to the Small Systems Workshop course (EECC756) as taught in the spring of 1986. This fixture will provide the physical layer of the local area network. This network would be Ethernet like but use an RS-232C communication between the fixture and the nodes. In addition to simulating the ether the fixture would provide for on-line analysis of the packets being sent to provide feedback to the student as well as the professor. The IBM PC/AT type personal …

Microcomputer Graphic Intelligence, Thomas Tillman Shaffner

Theses

None provided.

A Survey Of Computerized Writing Aid Systems And Implementation Of A Homonym Checker Using Artificial Intelligence, Anna Marie Robbins

Theses

Computerized writing aid systems ideally determine whether word usage in written text is appropriate both syntactically and semantically. Currently developed computerized writing aid systems are reviewed with emphasis on their methods for and success at grammar checking. A limited homonym checker and correction advisor is devised and implemented using the Prolog programming language and artificial intelligence techniques. Insight is gained into the problem of developing a comprehensive computerized system for determining appropriate syntactic and semantic word usage.

A Study In Music Visualization, Charles Marsh

Theses

None provided.

Port-A-Map, Viriya Pungthong

Theses

None provided.

An Investigation Of Consumers' Preference For A Typestyle In Relation To A Display Poster, Brad Weaver

Theses

None provided.

A Study Of The Subjective Differences Between Soft-Copy And Hard-Copy Proofing, Sandra Fuhs

Theses

The widespread use of Cathode Ray Tubes (CTRs) as soft-copy proofing devices in electronic imaging situations has raised serious questions as to their relevance, the appropriate viewing conditions and the necessary design, color and tone characteristics of the color monitors. Proofs are used at many different stages in the print production process. Each stage has different requirements in terms of color acceptance, detail, sharpness, composition and portability. At each level of the approval cycle various measuring devices are used to qualify acceptability. This thesis deals with every-day use and problems of soft-copy proofing. An electronic test pattern was displayed on …

Comparison Between Edge Tracing And Slit Tracing In The Measurement Of The Otf, J. S. Perron

Theses

A study was performed to compare two methods of measuring the Optical Transfer Function (OTF), namely edge tracing and slit tracing, to evaluate the performances and limitations of each method. Edge tracing is a very common method of measuring the OTF of an optical system. It is simple to set up, but the sampling size is limited and derivation of the Edge Spread Function is required in order to obtain the Line Spread Function (LSF). This derivation induces considerable high frequency noise. A competing method, slit tracing, is more complex mainly because of physical limitations such as the actual slit …

Metacomprehension: Its Effect On Reading Comprehension Of Third Graders, Lois Funk

Theses

Will third grade students, who receive direct instruction in the development of metacomprehension, show greater gains in reading comprehension than students who receive regular instruction based on their teacher's basal manual? The purpose of this study was to compare two groups of third grade students , one control and one experimental, to determine whether direct instruction in the development of metacomprehension would significantly improve third grade reading comprehension.

The hypothesis of this study was that direct instruction in the development of metacomprehension would enable students to receive significantly higher scores in reading comprehension as measured on a standardized comprehension test …

Criteria For Identifying Artistically Talented Students In Elementary Education, Mary C. Tevlin

Theses

To objectively identify an "artistically talented'' student in an elementary art class is a difficult procedure. Many processes have been used in recent years in order to place these art students in gifted art programs.

This paper examines the literature describing many tests and procedures that have been used to assess students in the area of visual arts ability. It examines research identifying the behaviors and characteristics of visually talented art students and has formulated a questionnaire for teachers to use when identifying artistically talented students in elementary education.

The questionnaire was piloted in one school district. Revisions were made, …

High-Performance Liquid Chromatographic Analysis Of Commonly Used Drugs, Gregg C. Hider

Theses

This research project had two major goals. Selected members of six groups of clinically useful drugs were obtained to develop and optimize reverse-phase isocratic high-performance liquid chromatographic (HPLO separations using the Hewlett Packard Series 1090 M HPLC. All optimized methods displayed excellent resolution between compounds within a method. Each optimized drug assay developed, displayed good linearity and precision. The second and primary goal of this research project was to provide RIT with a teaching tool. These optimized separations were incorporated into six laboratory experiments, written in a format that RIT's undergraduate students of Medical Technology could easily follow and complete …

The Kingdom, The Power, And The Glory, Craig Varjabedian

Theses

None provided.

Teaching Listening Skills To Kindergarten Children, Barbara A. Schwayne

Theses

In this study, the impact of teaching discriminatory listening skills to kindergarten children was investigated. The children were taught for 15 minutes daily for 12 weeks. The lessons consisted of paper and crayon activities, playing listening games, using books and tapes at a listening center, and some following directions activities .

It was hypothesized that the intact experimental group would do better on the posttest than the intact control group , that t he males listening skills would increase more than the females, and that the older and younger students' listening skills would increase more than those of the students …

A Study Of The Effect Of The Francis Howell Writing Process On The Language Arts Achievement Of Fourth Grade Students, Carolyn Rose

Theses

During the 1986-1987 school year, the Francis Howell School District implemented a formal writing process designed to address students/ deficiencies in language arts. An attempt was made to demonstrate the effectiveness of this program by examining the differences in language arts scores on a standardized achievement test between a class of fourth graders which was not exposed to the writing program--the comparison group, and a similar group which received instruction based on the Francis Howell Writing Process-- the experimental group.

The results of this study Indicated that exposure to the Francis Howell Writing Process did not have a significant impact …