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1996

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Interference Suppression For Spread Spectrum Signals Using Adaptive Beamforming And Adaptive Temporal Filter, Wonjin Park Dec 1996

Interference Suppression For Spread Spectrum Signals Using Adaptive Beamforming And Adaptive Temporal Filter, Wonjin Park

Theses and Dissertations

Interference and jamming signals are a serious concern in an operational military communication environment. This thesis examines the utility and performance of combining adaptive temporal filtering with adaptive spatial filtering (i.e. adaptive beamforming) to improve the signal-to-jammer ratio (SJR) in the presence of narrowband and wideband interference. Adaptive temporal filters are used for narrowband interference suppression while adaptive beamforming is used to suppress wideband interference signals. A procedure is presented for the design and implementation of a linear constraints minimum variance generalized sidelobe canceler (LCMV-GSC) beamformer. The adaptive beamformer processes the desired signal with unity gain while simultaneously and adaptively …

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Experimental Investigation Of Radar Cross Section Spatial Correlation Properties For A Point Scattering Target, John D. Shannon Dec 1996

Experimental Investigation Of Radar Cross Section Spatial Correlation Properties For A Point Scattering Target, John D. Shannon

Theses and Dissertations

This research investigates the spatial correlation of RCS. In pulsed radar systems, probability of detection for partially correlated signals depends on the autocovariance of the target's RCS. The RCS changes pulse to pulse due to spatial and time fluctuations. Spatial fluctuation are due to the motion of all scatterers relative to the radar (i.e. changing aspect angle). Time fluctuations are due to relative motion of scatterers to each other (i.e. wings flexing, engines spinning). Theory developed at AFIT [9] can generate autocovariance estimates from a distribution of scatterers. Theory based autocovariance estimates are compared to static measurement based autocovariance estimates …

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Evaluation Of Design Tools For Rapid Prototyping Of Parallel Signal Processing Algorithms, James C. Savage Dec 1996

Evaluation Of Design Tools For Rapid Prototyping Of Parallel Signal Processing Algorithms, James C. Savage

Theses and Dissertations

Digital signal processing (DSP) has become a popular method for handling not only signal processing, but communications, and control system applications. A DSP application of interest to the Air Force is high speed avionics processing. The real time computing requirements of avionics processing exceed the capabilities of current single chip DSP processors, and parallelization of multiple DSP processors is a solution to handle such requirements. Designing and implementing a parallel DSP algorithm has been a lengthy process often requiring different design tools and extensive programming experience. Through the use of integrated software development tools, rapid prototyping becomes possible by simulating …

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Weighted Mahalanobis Distance For Hyper-Ellipsoidal Clustering, Khaled S. Younis Dec 1996

Weighted Mahalanobis Distance For Hyper-Ellipsoidal Clustering, Khaled S. Younis

Theses and Dissertations

Cluster analysis is widely used in many applications, ranging from image and speech coding to pattern recognition. A new method that uses the weighted Mahalanobis distance (WMD) via the covariance matrix of the individual clusters as the basis for grouping is presented in this thesis. In this algorithm, the Mahalanobis distance is used as a measure of similarity between the samples in each cluster. This thesis discusses some difficulties associated with using the Mahalanobis distance in clustering. The proposed method provides solutions to these problems. The new algorithm is an approximation to the well-known expectation maximization (EM) procedure used to …

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Microelectromechanical Isolation Of Acoustic Wave Resonators, James R. Reid Jr. Dec 1996

Microelectromechanical Isolation Of Acoustic Wave Resonators, James R. Reid Jr.

Theses and Dissertations

Microelectromechainical systems (MEMS) is a rapidly expanding field of research into the design and fabrication of actuated mechanical systems on the order of a few micrometers to a few millimeters. MEMS potentially offers new methods to solve a variety of engineering problems. A large variety of MEMS systems including flip-up platforms, scanning micromirrors, and rotating micromirrors are developed to demonstrate the types of MEMS that can be fabricated. The potential of MEMS for reducing the vibration sensitivity of surface acoustic wave and surface transverse wave resonators is then evaluated. A micromachined vibration isolation system is designed and modeled. A fabrication …

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Countering The Effects Of Measurement Noise During The Identification Of Dynamical Systems, Odell R. Reynolds Dec 1996

Countering The Effects Of Measurement Noise During The Identification Of Dynamical Systems, Odell R. Reynolds

Theses and Dissertations

Sensor noise is an unavoidable fact of life when it comes to measurements on physical systems, as is the case in feedback control. Therefore, it must be properly addressed during dynamic system identification. In this work, a novel approach is developed toward the treatment of measurement noise in dynamical systems. This approach hinges on proper stochastic modeling, and it can be adapted easily to many different scenarios, where it yields consistently good parameter estimates. The Generalized Minimum Variance algorithm developed and used in this work is based on the theory behind the minimum variance identification process, and the estimate produced …

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Perceptual Fidelity For Digital Color Imagery, Curtis E. Martin Dec 1996

Perceptual Fidelity For Digital Color Imagery, Curtis E. Martin

Theses and Dissertations

The problem of measuring the fidelity of digital color images in a manner that corresponds to human perceptual assessments is addressed. Experiments are performed to validate human visual system (HVS) models, which provide access to a 'perceptual space' in which visual distortions may be measured, and then a model is proposed for assessing the perceptual fidelity of digital color image. Color Mach bands are produced in the first experiment, demonstrating that, as in the brightness channel, low spatial frequency attenuation occurs in the chromatic channels of the HVS. In the second experiment, a correlation between the chromatic channels of the …

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Using Kriging To Interpolate Spatially Distributed Volumetric Medical Data, Stephen M. Matechik Dec 1996

Using Kriging To Interpolate Spatially Distributed Volumetric Medical Data, Stephen M. Matechik

Theses and Dissertations

Routine cases in diagnostic radiology require the interpolation of volumetric medical imaging data sets. Inaccurate renditions of interpolated volumes can lead to the misdiagnosis of a patient's condition. It is therefore essential that interpolated modality space estimates accurately portray patient space. Kriging is investigated in this research to interpolate medical imaging volumes. Kriging requires data to be spatially distributed. Therefore, magnetic resonance imaging (MRI) data is shown to exhibit spatially regionalized characteristics such that it can be modeled using regionalized variables and subsequently be interpolated using kriging. A comprehensive, automated, three-dimensional structural analysis of the MRI data is accomplished to …

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Electrical Characterization Of Intrinsic And Induced Deep Level Defects In Hexagonal Sic, James D. Scofield Dec 1996

Electrical Characterization Of Intrinsic And Induced Deep Level Defects In Hexagonal Sic, James D. Scofield

Theses and Dissertations

Deep level defects in hexagonal SiC were studied using digital deep level transient spectroscopy (DLTS) methods over the temperature range of 100 to 800 deg K. New centers were found in bulk and epitaxial 6H-SiC with ionization energies between 0.38 to 1.3 eV, and levels from 0.2 to 0.856 eV were identified in 4H-SiC epitaxy. Direct correlation between inequivalent lattice sites was identified for energetic pairs associated with both vanadium and ion implanted Mg impurities. Nonradioative carrier capture mechanisms were studied and deep level trapping was found to proceed via lattice relaxation multi-phonon emission, indicating efficient electronic lattice coupling in …

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Performance À Moyen Terme De Divers Modes D'Implantation Du Simdut, Gilles Thériault, Madeleine Ferron, Vincent Dufort, Sylvie Bédard, Jorma Saari Dec 1996

Performance À Moyen Terme De Divers Modes D'Implantation Du Simdut, Gilles Thériault, Madeleine Ferron, Vincent Dufort, Sylvie Bédard, Jorma Saari

Rapports de recherche scientifique

No abstract provided.

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Facets Of Courage: Colonel Charles Victor Deland And The American Civil War, Anthony P. Glesner Dec 1996

Facets Of Courage: Colonel Charles Victor Deland And The American Civil War, Anthony P. Glesner

Masters Theses

This work constitutes a case study of a historical paradigm, that during the course of the Civil War civilians came to view the concepts of valor and virtue very much differently than soldiers, and that this caused tension within communities, both during the war, and after, when civilians continued to judge returning soldiers by an outdated sense of values, while the soldiers themselves, disillusioned by war, only wanted to forget. As time dimmed the memories of war, many veterans began to once again see it in terms of valor and virtue, and thus they reshaped their visions of war and …

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I'D Like To Present But How Are You Going To Score Me?, Stephen J. Hall Dec 1996

I'D Like To Present But How Are You Going To Score Me?, Stephen J. Hall

PASAA

Presenting competently needs language awareness and non-verbal skills which can be difficult to assess. This paper presents a framework for understanding the demands of presentation speaking and suggests approaches to scoring and giving feedback with attention to sub-skills. The framework for presentation skills assessment draws on research and the writer's experience in Southeast Asia. Guidelines for classroom practices which move beyond an assessor's intuitive response are suggested.

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Video Movies In Teaching English As A Foreign Language, David Wood Dec 1996

Video Movies In Teaching English As A Foreign Language, David Wood

PASAA

This present examines the combination of the most motivating audio-visual resource, the movie, and one of the most effective language-teaching methodologies, the communicative approach, starting with a detailed rationale for the use of movies in TEFL in Section Two. Attention is paid to the effect which the irrepressible interest films can generate with teachers and students. Section Three continues with a discussion of whether video movies can be considered as an aspect of literature or whether their essential nature is something quite different, and of exactly what elements of their language and content are the most appropriate for teaching English …

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The State Of Caveat Emptor In Alaska As It Applies To Real Property, James R. Pomeranz Dec 1996

The State Of Caveat Emptor In Alaska As It Applies To Real Property, James R. Pomeranz

Alaska Law Review

No abstract provided.

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Sexual Abuser Insurance In Alaska: A Note On St. Paul Fire & Marine Insurance Co. V. F.H.; K.W., Ward S. Connolly Dec 1996

Sexual Abuser Insurance In Alaska: A Note On St. Paul Fire & Marine Insurance Co. V. F.H.; K.W., Ward S. Connolly

Alaska Law Review

No abstract provided.

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Inhomogeneity In Gelation And Nonuniversality Of Sol-To-Gel Transitions Studied By A Computer Simulation Model, Yi-Min Liu, R.B. Pandey Dec 1996

Inhomogeneity In Gelation And Nonuniversality Of Sol-To-Gel Transitions Studied By A Computer Simulation Model, Yi-Min Liu, R.B. Pandey

Faculty Publications

No abstract provided.

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Shakespeare's Christian Dimension: An Anthology Of Commentary, James H. Sims Dec 1996

Shakespeare's Christian Dimension: An Anthology Of Commentary, James H. Sims

Faculty Publications

No abstract provided.

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Early Agriculture In The Maya Lowlands, Mary D. Pohl, Kevin O. Pope, John G. Jones, John S. Jacob, Dolores R. Piperno, Susan D. Defrance, David L. Lentz, John A. Gifford, Marie E. Danforth, J. Kathryn Josserand Dec 1996

Early Agriculture In The Maya Lowlands, Mary D. Pohl, Kevin O. Pope, John G. Jones, John S. Jacob, Dolores R. Piperno, Susan D. Defrance, David L. Lentz, John A. Gifford, Marie E. Danforth, J. Kathryn Josserand

Faculty Publications

Wetland research in northern Belize provides the earliest evidence for development of agriculture in the Maya Lowlands. Pollen data confirm the introduction of maize and manioc before 3000 B.C. Dramatic deforestation, beginning ca. 2500 B.C. and intensifying in wetland environments ca. 1500-1300 B.C., marks an expansion of agriculture, which occurred in the context of a mixed foraging economy. By 1000 B.C. a rise in groundwater levels led farmers to construct drainage ditches coeval with the emergence of Maya complex society ca. 1000-400 B.C. Field manipulations often involved minor modifications of natural hummocks. Canal systems are not as extensive in northern …

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Main Hall To Main Street, December 1996, University Of Montana--Missoula. Office Of University Relations Dec 1996

Main Hall To Main Street, December 1996, University Of Montana--Missoula. Office Of University Relations

Main Hall to Main Street, 2005-2010

This is volume 2, number 11 of Main Hall to Main Street.

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Learning How To Teach How To Learn English As A Second Language: Reflections From Experience, Praxis, And Theory, Leor Alcalay Dec 1996

Learning How To Teach How To Learn English As A Second Language: Reflections From Experience, Praxis, And Theory, Leor Alcalay

Critical and Creative Thinking Capstones Collection

This thesis explores the development of professional expertise in teaching ESL. Such expertise incorporates the methodological instructional knowledge, intercultural awareness, and multilingual competence essential to meeting highly diversified learning needs in US classrooms, facilitating globalization of domestic business interests, and enabling the integration of immigrants into American society. I encourage a view of ESL teachers as craftspersons and intellectuals who integrate a reflective approach toward personal experience and a comprehensive awareness of relevant intellectual constructs into a dialectical interaction with theory and practice.

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Using Critical And Creative Thinking Skills To Enhance Integrity In Business Organizations, Madeline B. Conley Dec 1996

Using Critical And Creative Thinking Skills To Enhance Integrity In Business Organizations, Madeline B. Conley

Critical and Creative Thinking Capstones Collection

In this thesis I explore some of the ways in which critical thinking skills can be used to facilitate the development of integrity in business organizations. The vehicle I have developed to bring these thinking skills to organizations is a one-day intensive workshop with a follow-up half-day evaluation session. In chapter one, I define integrity and compare it to Stephen Carter's definition. I also analyze five specific critical thinking skills and relate them to two actual cases: Dow Corning and fictitiously named, First National Bank. In the Dow Corning case, I argue that management might have produced a less destructive …

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The Critical Moral Classroom: An Approach To Teaching Values, Brian Daniels Dec 1996

The Critical Moral Classroom: An Approach To Teaching Values, Brian Daniels

Critical and Creative Thinking Capstones Collection

In this thesis the proper place and instruction of morals and values in public schools is considered from an historic, and social view. A pedagogical approach to teaching values in the classroom, which is based in critical thinking, is offered as a resolution to the stalemate regarding morals and values in schools that is a result of competing cultural forces. In the historical review chapter I make a case that America's public school teachers have always been charged with the moral development of their students and that this charge has been primary over much of our history. The chapter concludes …

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Thinking And Learning Through Creative Movement In The Classroom, Katherine M. Nauman-Borton Dec 1996

Thinking And Learning Through Creative Movement In The Classroom, Katherine M. Nauman-Borton

Critical and Creative Thinking Capstones Collection

In the past decade, the American school system has come under scrutiny. American children are scoring lower than children from other countries on standardized tests. What can be done to ensure that American students are able to compete in the technological world of today? Many educators believe that in order for children to fulfill their potential, they must be given more than information and knowledge. They must be taught how to think, how to use the knowledge they learn in school. Researchers such as Robert H. Ennis (1987, 1993) and Matthew Lipman (1995) believe thinking must be advanced in the …

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Developing Generative Leadership Through Emergent Learning, Justin Sherman Dec 1996

Developing Generative Leadership Through Emergent Learning, Justin Sherman

Critical and Creative Thinking Capstones Collection

This thesis is the current synthesis of a deep exploration of the foundations of collaborative, transformational learning within organizations. I begin with a basic assumption which informs all the thinking that unfolds throughout this thesis: the sustainability of our organizations, and quite possibly the survival of our species, is dependent not on the leadership and the development of a chosen few, but on our collective ability to deeply listen for and sense what most needs to happen within a given group of people and then to act on this. We live our lives with deeply entrenched, mostly tacit beliefs about …

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Interparental Conflict, Family Environment And Perceived Interpersonal Conflicts Among Late Adolescents, Harry Durell Johnson Dec 1996

Interparental Conflict, Family Environment And Perceived Interpersonal Conflicts Among Late Adolescents, Harry Durell Johnson

Student Work

The characteristics of interpersonal conflict within the family system during adolescence may be influenced not only by the attempts of adolescent's to individuate from their parents, but also by the environment in which this individuation process occurs. Family systems that are characterized by decreased family cohesion and increased interparental conflict may inadvertently provide environments that foster increases in conflict among its members. How these environmental factors are associated with the quantitative and qualitative aspects of conflict is an important question which is addressed in this study. The relationship between the family system environment (i.e., family cohesion and interparental conflict), participant's …

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Samuel Pandolfo And The Mail Fraud Statute, Susan Marie Juza Dec 1996

Samuel Pandolfo And The Mail Fraud Statute, Susan Marie Juza

Student Work

Talents of flaws in a man's character may go unnoticed until forced into the public's eye by unforeseen circumstances. Samel Pandolfo, a southern-born promoter, influenced many people's lives by his charismatic personality and his business ventures. Pandolfo had a zest for life, and moved frequently through his adult career, touching many communities. His range of interests included teaching, selling insurance, building an automobile manufacturing plant, developing a health food business, and promoting a loan company. While he invested much energy and money into these ventures, they all eventually failed.

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Developmentally Disabled Elderly: Reflections Of The Aging Network Workers' Readiness, Daniel Alan Kash Dec 1996

Developmentally Disabled Elderly: Reflections Of The Aging Network Workers' Readiness, Daniel Alan Kash

Student Work

This study looks at the readiness of the aging network workers to work with the developmentally disabled elderly. The developmentally disabled elderly population will grow along with the rest of the aging population. As this occurs, the aging network workers may be called upon to work with the developmentally disabled elderly population. This study surveyed the aging networker workers to determine their attitudes and opinions in serving the developmentally disabled elderly population. Specifically, the survey looked at the attitudes and opinions of the aging network workers of the developmentally disabled elderly population in the following areas: perceptions of the field, …

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Developmentally Disabled Elderly: Reflections Of The Aging Network Workers' Readiness, Daniel Alan Kash Dec 1996

Developmentally Disabled Elderly: Reflections Of The Aging Network Workers' Readiness, Daniel Alan Kash

Student Work

This study looks at the readiness of the aging network workers to work with the developmentally disabled elderly. The developmentally disabled elderly population will grow along with the rest of the aging population. As this occurs, the aging network workers may be called upon to work with the developmentally disabled elderly population. This study surveyed the aging networker workers to determine their attitudes and opinions in serving the developmentally disabled elderly population. Specifically, the survey looked at the attitudes and opinions of the aging network workers of the developmentally disabled elderly population in the following areas: perceptions of the field, …

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Are Law Firm Partners Islands Unto Themselves? An Empirical Study Of Law Firm Peer Review And Culture, Susan Saab Fortney Dec 1996

Are Law Firm Partners Islands Unto Themselves? An Empirical Study Of Law Firm Peer Review And Culture, Susan Saab Fortney

Faculty Scholarship

This article examines how attitude and law firm culture affect peer review and principal accountability by using empirical data obtained from a survey of Texas law firms. Part I briefly describes the research design and the general profiles of respondents of the survey. Part II discusses the peer review measures used by the firms surveyed for this article. Part III analyzes attitudes about peer review. Part IV focuses on the obstacles to peer review. Part V considers the connection between firm culture and the implementation of peer review measures. Finally, the conclusion explains how firm managers can reshape attitudes to …

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A Study Of Students Involved In A Leadership Development Program, "Excellence In Leadership", At Grand Valley State University, Paul Mckimmy Dec 1996

A Study Of Students Involved In A Leadership Development Program, "Excellence In Leadership", At Grand Valley State University, Paul Mckimmy

Dissertations

This study sought to describe the leadership behaviors of students involved in the Excellence in Leadership Program (ELP) at Grand Valley State University. Additionally, it sought to determine how ELP influences the leadership behaviors of its members. The Leadership Practices Inventory - Student Version (LPI) was used to measure the leadership behavior frequencies of five groups of students at the beginning and end of the 1995-1996 academic year. Non-ELP-members, newly registered ELP members, and ELP members at three different achievement levels (Bronze, Silver, and Gold) were compared. The behaviors measured by this instrument are: Enabling Others to Act, Modeling the …

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