Digital Commons Network^™

Methodology For Integrating The Scenario Databases Of Simulation Systems, Emilia M. Colonese

Theses and Dissertations

The use of many different simulation systems by the United States Department of Defense has resulted in many different scenario data representations contained in heterogeneous databases. These heterogeneous databases all represent the same data concept, but have different semantics due to intrinsic variations among the data models. In this research, I describe a unified scenario database to allow interoperability and reuse of the scenario data components while avoiding the problems of data redundancy. Using the object oriented approach, the data and schema of the scenario databases, represented in an object oriented model, are integrated into a global database also represented …

Cobol Reengineering Using The Parameter Based Object Identification (Pboi) Methodology, Sonia De Jesus Rodrigues

Theses and Dissertations

This research focuses on how to reengineer Cobol legacy systems into object oriented systems using Sward's Parameter Based Object Identification (PBOI) methodology. The method is based on relating categories of imperative subprograms to classes written in object oriented language based on how parameters are handled and shared among them. The input language of PBOI is a canonical form called the generic imperative model (GIM), which is an abstract syntax tree (AST) representation of a simple imperative programming language. The output is another AST, the generic object model (GOM), a generic object oriented language. Conventional languages must be translated into the …

Parallel Digital Signal Processing On A Network Of Personal Computers Case Study: Space-Time Adaptive Processing, Fernando Silva

Theses and Dissertations

Network based parallel computing using personal computers is currently a popular choice for concurrent scientific computing. This work evaluates the capabilities and the performance of the AFIT Bimodal Cluster (ABC); a heterogeneous cluster of PCs connected by switched fast Ethernet and using MPICH 1.1 for interprocess communication for parallel digital signal processing using Space Time Adaptive Processing (STAP) as the case study. The MITRE RT_STAP Benchmark version 1.1 is ported and executed on the ABC, as well as on a cluster of six Sun SPARC workstations connected by a Myrinet network (the AFIT NOW), and on a IBM SP for …

Bistatic Radar Cross Section (Rcs) Characterization Of Complex Objects, Robert L. Eigel Jr.

Theses and Dissertations

This research addresses some phenomenological aspects of bistatic scattering from a complex object with an emphasis on specular, shadowing, dihedral, and cavity effects. Five targets are investigated for their simplicity and ability to highlight certain scattering phenomena. Direct measurements of scattered electromagnetic energy and simulation data is gathered for a frequency bandwidth of 6-18 GHz. Both ray tracing and scattering center approaches are used to describe the bistatic mechanisms. An appraisal of the effectiveness and utility of the monostatic-to-bistatic equivalence theorems (Kell's and Crispin's) and several commercial scattering prediction codes is also accomplished. Simulation data is generated from two different …

Dual Channel Matched Filtering And Space-Time Adaptive Processing, Scott D. Berger

Theses and Dissertations

We propose a dual channel matched filtering system that addresses two key challenges in the practical implementation of a single channel matched filtering system: secondary data support and computational cost. We demonstrated that the dual channel system requires half the secondary data to achieve nearly the same signal-to-interference plus noise ratio (SINR) as an equivalent single channel system. The key to the dual channel system is the block diagonalization of the interference plus noise correlation matrix with a fixed transformation. We investigated the application of this dual channel concept to the problem of space-time adaptive processing (STAP), referring to the …

Scan-It: A Computer Vision Model Motivated By Human Physiology And Behavior, John G. Keller

Theses and Dissertations

This dissertation details the development of a new computational vision model motivated by physiological and behavioral aspects of the human visual system. Using this model, intensity features within an artificial visual field of view are extracted and transformed into a simulated cortical representation, and a saccadic guidance system scans this field of view over an object within an image to memorize that object. The object representation is thus stored as a sequence of feature matrices describing sub-regions of the object. A new image can then be searched for the object (possibly scaled and rotated), where evidence of its presence is …

Flow Separation Prevention On A Turbine Blade In Cascade At Low Reynolds Number, James P. Lake

Theses and Dissertations

The problem of flow separation from a low pressure turbine blade was investigated. The operating conditions under which the separation occurred were documented through measurement of surface pressure coefficients, boundary layer velocity and turbulence profiles, total pressure loss coefficient and wake velocity momentum deficit. Three different means for reducing the losses associated with the flow separation were also investigated. A boundary layer trip, dimples, and V-grooves were studied as passive means requiring no additional energy to reduce the separation losses. The boundary layer trip was only successful for an inlet and axial chord Reynolds number of 50k with a reduction …

Evolving Compact Decision Rule Sets, Robert E. Marmelstein

Theses and Dissertations

While data mining technology holds the promise of automatically extracting useful patterns (such as decision rules) from data, this potential has yet to be realized. One of the major technical impediments is that the current generation of data mining tools produce decision rule sets that are very accurate, but extremely complex and difficult to interpret. As a result, there is a clear need for methods that yield decision rule sets that are both accurate and compact. The development of the Genetic Rule and Classifier Construction Environment (GRaCCE) is proposed as an alternative to existing decision rule induction (DRI) algorithms. GRaCCE …

Timed Safety Automata And Logic Conformance, Frank C. D. Young

Theses and Dissertations

Timed Logic Conformance (TLC) is used to verify the behavioral and timing properties of detailed digital circuits against abstract circuit specifications when both are modeled as Timed Safety Automata (TSA) with real-valued clocks. TLC is a bisimulation-style partial order relationship defined over TSA state space. In contrast to timed simulation, Calculus of Timed Refinement, and time-abstracted bisimulation, TLC defines when one system is an acceptable implementation of another by asymmetric action-matching requirements for specification inputs and implementation outputs. TLC intuitively and pragmatically supports writing abstract specifications and verifying them against implementations. TLC scales up by substituting verified specifications for implementations …

Estimation And Goodness-Of-Fit In The Case Of Randomly Censored Lifetime Data, David M. Reineke

Theses and Dissertations

A new continuous distribution function estimator for randomly censored data is developed, discussed, and compared to existing estimators. Minimum distance estimation is shown to be effective in estimating Weibull location parameters when random censoring is present. A method of estimating all 3 parameters of the 3-parameter Weibull distribution using a combination of minimum distance and maximum likelihood is also given. Cramer-von Mises and Anderson-Darling goodness-of-fit test statistics are modified to measure the discrepancy between the maximum likelihood estimate and the Kaplan-Meier product-limit estimate of the distribution function of the random variable of interest. These modified test statistics are used to …

Enhancing Literacy Through Creative Dramatics, Kathy Lynn Torkelson

Theses and Dissertations

No abstract provided.

Multiobjective Evolutionary Algorithms: Classifications, Analyses, And New Innovations, David A. Van Veldhuizen

Theses and Dissertations

This research organizes, presents, and analyzes contemporary Multiobjective Evolutionary Algorithm (MOEA) research and associated Multiobjective Optimization Problems (MOPs). Using a consistent MOEA terminology and notation, each cited MOEAs' key factors are presented in tabular form for ease of MOEA identification and selection. A detailed quantitative and qualitative MOEA analysis is presented, providing a basis for conclusions about various MOEA-related issues. The traditional notion of building blocks is extended to the MOP domain in an effort to develop more effective and efficient MOEAs. Additionally, the MOEA community's limited test suites contain various functions whose origins and rationale for use are often …

Has Technology In The Elementary Classroom Caused Instruction To Improve?, Denise Mcdermott

Theses and Dissertations

This study described and evaluated the extent to which technology has improved instruction, and thus improved student learning, in elementary schools in Deptford Township, a K-12 district. The study included all K-6 grade teachers. A 31-item survey was completed by 85% of elementary school teachers. Percentages of answers were mathematically calculated and lists of software programs and student systems for computer use were compiled. The majority of elementary teachers described their level of expertise regarding technology as "able to manage as long as everything runs correctly". The results reveal a high dissatisfaction with the type and amount of technology training …

The Role Of A School Business Administrator: Perspectives Of A Role Incumbent And His Role Set, Stephen J. Lynch

Theses and Dissertations

This study compared the perceptions held by a school business administrator for his position with the perceptions of his principal role set.

Interviews were held with the school business administrator and 17 members of his role set to determine perceptions of the role expectations and actual role performance. For each question on the role set interview instrument, frequency distributions were constructed and then converted into relative frequency distributions expressed as percentages.

The interview data was used to compare role expectation and role performance as perceived by the role incumbent; to compare role expectations and role performance as perceived by the …

Character Education, Patricia S. Friend

Theses and Dissertations

The focus of this project was to develop and implement a character education program at the Upper Township Elementary School. This intern has endeavored to develop and implement a character education program at the Upper Township Elementary School in an attempt to improve interpersonal relations. This intern created a resource manual for teachers, assisted in the training necessary to implement this program, collected and analyzed data evaluating the effectiveness of the program.

During the duration of this research study, the intern developed and refined several leadership competencies in the area of school administration. This intern effectively applied human relations skills …

A Study And Intervention Of Excessive Absenteeism At Bridgeton High School, Sandra H. Myers

Theses and Dissertations

The purpose of this study was to investigate reasons that students were absent and to study policies or programs that could help decrease absenteeism for students. The intern used an action research design by surveying students and interviewing teachers. The sample cluster in this study consisted of the students attending the Summer Credit Completion Program at Bridgeton High School. The population in which inferences were made was the student body at Bridgeton High School. The information, however, can be generalized to any special needs high school or one that is comparable in socioeconomic status.

The intern looked at three areas …

Case Study On Mainland Regional High School's Pilot Program On Block Scheduling, Matthew A. Jamison

Theses and Dissertations

The purpose of this case study was to discover and evaluate the advantages and disadvantages of block scheduling at Mainland Regional High School. The major focal point of this case study was the perceptions on block scheduling of teachers, students, and parents.

This study blends the richness of qualitative research with the range of quantitative research. Approximately 180 sophomore students participated in the pilot program. Four teachers volunteered to teach the classes in the pilot program. The students completed a pre and post survey. At the conclusion of the first semester, random students were chosen to be interviewed. All the …

An Interdisciplinary Approach To Integrated Curriculum, Lynda Kozicz Leahey

Theses and Dissertations

The purpose of this study was to explore the effectiveness of the interdisciplinary approach to teaching mathematics and science, specifically Geometry and Biology. The study used an action research design in which two teachers participated in a planned interdisciplinary activity that involved 160 high school students. The site of this study was a high school located in a middle-class, rural-suburban community. Data was gathered using a concept map to measure the amount of conceptual understanding students have of the relationship between Geometry and Biology. Data of those students who were enrolled in both Geometry and Biology were compared to those …

Middle School Discipline: In Need Of Solutions, Robin L. Moore-Robinson

Theses and Dissertations

No abstract available.

Collaborative Teaching Relationships And The Inclusion Of Sixth Grade Students, Richard C. Panas

Theses and Dissertations

The purpose of this study is to describe and evaluate the effectiveness of implementing inclusion within a collaborative teaching framework in the sixth grade using an action research design. Based on the parameters set forth in a student's Individualized Education Program (IEP), the schedule to determine if a student's goals and objectives are being met is measured quarterly by report card. Ultimately, whether or not a student achieves the minimum level of proficiency as outlined in the IEP for social studies, science, mathematics, and language arts serves as the benchmark for determining whether or not the student's placement is appropriate. …

Evaluating The Impact Of Block Scheduling, John Joseph Hourani

Theses and Dissertations

The purpose of this study was to evaluate and describe the effectiveness of a 4x4 semester block schedule with respect to academic achievement, discipline, attendance and the school climate of Penns Grove High School. A longitudinal trend study design was utilized to compare statistics from the school's first two years under the block schedule to the school's final two years of the traditional schedule. Such statistics include the frequency of students obtaining A's, F's, and honor roll status, as well as monthly attendance rates, and discipline referral counts. Additionally, a modified action research design is used to examine the new …

A Risky Business: A Study Of Retention, Sue H. Kinsey

Theses and Dissertations

The purpose of the study was to describe and evaluate the effectiveness of an intervention program of remediation and academic mentoring on the academic success of students failing grade seven who were placed in grade eight. The study was conducted in the Clearview Regional Middle School during the summer preceding and including the 1998-99 academic year.

Data was gathered from test scores, mid-marking period progress reports, marking period grade reports, summer session teacher reports and interviews, and weekly and monthly classroom teacher reports. Information was also provided through parent, teacher, and student questionnaires. The data was analyzed using percentiles to …

An Impact Study Of The Positive Benefits Of A Technology Course On Students' Critical Thinking Skills, Jerry J. Marinacci

Theses and Dissertations

The purpose of this study was to determine the positive benefits to students enrolled in the new Applied Technology course offered at Bridgeton High School. The intern wishes to determine if the course has enhanced students' ability in critical skills such as: communicating, teamwork, problem solving and critical thinking.

The study will focus on students' ability to define and solve real world problems as presented in a high school technology laboratory. The design of the study was based on qualitative research of students' ability to identify criteria, develop possible solutions and solve problems of a technical nature based on pre-test …

Developing And Implementing A Daily Schedule Which Promotes Professional Collaboration And Meets The Needs Of The Students At The Lakeside Middle School In Millvile, New Jersey, Scott M. Sheppard

Theses and Dissertations

The purpose of this report was to develop and plan a daily schedule which promotes professional collaboration and meets the needs of the students at the new Lakeside Middle School. A properly structured schedule contains the organizational elements for delivering the curriculum to meet the needs of the students.

This research program involved the students in grades 6, 7 and 8. The students and staff are housed in four different schools throughout the district. A commercial building has been converted into the first true middle school (grades 6-8) in the history of the district. The school opens in September of …

Reform: In Search Of A Rationale, Ada R. Barlatt

Theses and Dissertations

The purpose of this study was to examine the implementation of the Core Curriculum Content Standards at Pleasantville. The district, a special needs (Abbott district), receives 85% of its funding from the state, therefore, must provide all children with a "Thorough and Efficient" education.

Two separate groups of students were studied. One group represented the current students in grade 10 and the second group represented the current students in grade 9. Also included in the study were teachers, counselors, administrators and employers.

The overall approach in this study was to use several methods to investigate the effects on a local …

Interest Attitude Survey Towards A Block Scheduling Change In Secondary Schools, Diane Tucker

Theses and Dissertations

The purpose of this study is to research teacher attitudes towards a block scheduling change, in order to determine block scheduling favorability in schools where traditional scheduling presently exists. It will be determined if subject areas, years of experience and dominant teaching style have any relevancy towards block scheduling favorability.

Two-hundred and sixty-three faculty members from five randomly selected schools were surveyed, requesting information on subject area, years of teaching experience, dominant teaching style and favorability towards a block scheduling change.

Data was collected, analyzed and presented to determine block scheduling favorability and relevancy in subject area, years of teaching …

Combination Of Heterogeneous And Homogeneous Grouping To Achieve Better Reading And Math Scores, Diane R. Cioffi-Longo

Theses and Dissertations

This report described the process used, for an elementary school with a student population of approximately 587 students, to investigate the existing reading and math programs offered to students. The preliminary research indicated a need for an extended staff development program, and the implementation of advanced methodologies. The conclusions of the project, as a whole, provided data which emphasizes the need for growth in reading and math pedagogy awareness with the district of Glassboro.

Purposed preliminary investigation strategies included; (a) interviews with reading and math teachers, regular homeroom teachers, and teachers in other academic disciplines; (b) a review of documents …

Assessing The Effects Of Exposure To Multicultural Learning On A School Population With Limited Diversity, Lynda Anderson-Towns

Theses and Dissertations

This Master's project was designed to assess the effects of infusing various multicultural activities in a rural school with limited diversity. It focused on integrating monthly multicultural activities into the curriculum of first grade students to increase their sensitivity and appreciation of diversity.

The study utilized qualitative data gathered through surveys, interviews and observations completed at Dennis Township Elementary School. The first grade students were exposed to a series of multicultural activities which included storytelling, mini-lessons and cultural presentation throughout a six month time span. Students' attitudes toward diversity were measured by pre-test and post-test surveys preceding and subsequent to …

An Internship In Elementary School Administration At The Mary S. Shoemaker School, Woodstown, New Jersey, 1998-1999, Christine H. Carpenter

Theses and Dissertations

This study was conducted to determine strengths and weaknesses in communication between teachers and the CST and to identify ways to improve that communication using action research.

Data was gathered by having 19 regular education teachers complete surveys regarding their feelings in respect to communication with the CST, guidance counselors, special education teachers, and other regular education teachers. Members of the CST, the guidance counselors and the special education teachers were interviewed regarding the communication process, and follow up interviews were also conducted with in-class support (ICS) teachers regarding the survey results. The survey and interview data was analyzed according …

Alternative Assessment, Katy Cosgrove

Theses and Dissertations

The purpose of the study was to change the way teachers assess students in the mathematics classroom. The teachers worked to find alternative assessment activities that gave students the opportunity to solve problems related to real-life application, allowing for a greater understanding of topics. The alternative assessment program involved many members of the mathematics department at Gateway Regional High School. Teachers were surveyed about alternative assessment before and after they used alternative assessment in the classroom. The conclusions of the study accomplished the goal of making teachers aware of alternative assessment and how it can be implemented into the classroom …