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ASU Electronic Theses and Dissertations


This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.

In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.

Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.


Language
  • English
Resource Type
Status
  • Public
Date Range
2010 2020


This thesis examines the modeling, analysis, and control system design issues for scramjet powered hypersonic vehicles. A nonlinear three degrees of freedom longitudinal model which includes aero-propulsion-elasticity effects was used for all analysis. This model is based upon classical compressible flow and Euler-Bernouli structural concepts. Higher fidelity computational fluid dynamics and finite elementmethods are needed formore precise intermediate and final evaluations. The methods presented within this thesis were shown to be useful for guiding initial control relevant design. The model was used to examine the vehicles static and dynamic characteristics over the vehicles trimmable region. The vehicle has significant longitudinal …

Contributors
Korad, Akshay Shashikumar, Rodriguez, Armando A, Tsakalis, Konstantinos S, et al.
Created Date
2010

Since scholars first turned their attention to the subject some eighty years ago, one major area of contention in the study of Anglo-Saxon wills has been the function of the written will within Anglo-Saxon culture. Verbal agreements, formalized through oral ceremonies and symbolic actions, were recognized as legally binding; however, many of these agreements were also recorded in writing. Many scholars argue that the written document was superfluous;oral ceremonies were written down only in the case of memory failure and the documents themselves had no real performative function. Others see the existence of the written will to be evidence of …

Contributors
Castle, Kasandra Marie, Bjork, Robert, Maring, Heather, et al.
Created Date
2010

Prognostics and health management (PHM) is a method that permits the reliability of a system to be evaluated in its actual application conditions. This work involved developing a robust system to determine the advent of failure. Using the data from the PHM experiment, a model was developed to estimate the prognostic features and build a condition based system based on measured prognostics. To enable prognostics, a framework was developed to extract load parameters required for damage assessment from irregular time-load data. As a part of the methodology, a database engine was built to maintain and monitor the experimental data. This …

Contributors
Varadarajan, Gayathri, Liu, Huan, Ye, Jieping, et al.
Created Date
2010

The following study evaluated the effectiveness of a self-monitoring strategy on independent work behavior. The three subjects were in first grade, seven years old, identified with mild mental retardation (MIMR), and had an Individualized Education Plan (IEP) with targeted functional academic and behavior goals. The purpose of this study was to investigate the effect of a self-monitoring strategy on on-task independent work behavior and task completion. The research sought to determine whether or not a self-monitoring strategy would affect on-task independent work behavior and task completion. A multiple baseline across subjects design was used. Data were collected using a frequency …

Contributors
Coughlin, Jennifer Henderson, Mccoy, Kathleen, Kenzer, Amy, et al.
Created Date
2010

Continuous advancements in biomedical research have resulted in the production of vast amounts of scientific data and literature discussing them. The ultimate goal of computational biology is to translate these large amounts of data into actual knowledge of the complex biological processes and accurate life science models. The ability to rapidly and effectively survey the literature is necessary for the creation of large scale models of the relationships among biomedical entities as well as hypothesis generation to guide biomedical research. To reduce the effort and time spent in performing these activities, an intelligent search system is required. Even though many …

Contributors
Kanwar, Pradeep, Davulcu, Hasan, Dinu, Valentin, et al.
Created Date
2010

The existing compact models can reproduce the characteristics of MOSFETs in the temperature range of -40oC to 125oC. Some applications require circuits to operate over a wide temperature range consisting of temperatures below the specified range of existing compact models, requiring wide temperature range compact models for the design of such circuits. In order to develop wide temperature range compact models, fourteen different geometries of n-channel and p-channel MOSFETs manufactured in a 0.18μm mixed-signal process were electrically characterized over a temperature range of 40 K to 298 K. Electrical characterization included ID-VG and ID-VD under different drain, body and gate …

Contributors
Kathuria, Achal, Barnaby, Hugh, Schroder, Dieter K, et al.
Created Date
2010

ABSTRACT This study explored the functions of dialogue in emerging adults' moral turning points. Through purposive sampling, the researcher interviewed 10 emerging adults between 25 and 30 years old about experiences of turning point conversations during the years of 18 and 25. This study employed constant comparative and grounded theory methodologies to analyze messages reported in memorable conversations during this period. Results indicated that dialogue functioned to educate, disturb, and maintain emerging adults' moral perception during this period of moral reorientation. Subcategories under each included dialogue that functioned to explain, invite, warn, direct or instruct, challenge, persuade, agitate, expose, inquire, …

Contributors
Danaher, Joshua, Waldron, Vincent R, Ramsey, Ramsey E, et al.
Created Date
2010

The purpose of this study was to explore current pedagogical approaches of undergraduate directing curricula in selected U.S. institutions of higher learning. Building on the work of Clifford Hamar and Anne Fliotsos, the thesis builds a foundation for further study of contemporary directing pedagogy. Fourteen course syllabi were collected voluntarily from members of The Association for Theatre in Higher Education (ATHE) and served at the primary source material. They were interpreted and analyzed qualitatively for components that identified the methods and philosophies of the instructor and/or institution. From these syllabi, the researcher found 11 "skill categories" which cover all potential …

Contributors
Welch, Peter Benjamin, Saldana, Johnny, Gharavi, Lance, et al.
Created Date
2010

The field of Structural Health Monitoring (SHM) has grown significantly over the past few years due to safety and performance enhancing benefits as well as potential life saving capabilities offered by technology. Current advances in SHM systems have lead to a variety of techniques capable of identifying damage. However, few strategies exist for using this information to quickly react to environmental or material conditions needed to repair or protect the system. Rather, current systems simply relay this information to a central processor or human operator who then decides on a course of action, such as altering the mission or scheduling …

Contributors
Garcia, Michael, Sodano, Henry A, Jiang, Hanqing, et al.
Created Date
2010

Electronic devices are gaining an increasing market share in the medical field. Medical devices are becoming more sophisticated, and encompassing more applications. Unlike consumer electronics, medical devices have far more limitations when it comes to area, power and most importantly reliability. The medical devices industry has recently seen the advantages of using Flash memory instead of Read Only Memory (ROM) for firmware storage, and in some cases to replace Electrically Programmable Read Only Memories (EEPROMs) in medical devices for frequent data storage. There are direct advantages to using Flash memory instead of Read Only Memory, most importantly the fact that …

Contributors
Hag, Eslam E., Kozicki, Michael N, Schroder, Dieter K, et al.
Created Date
2010

The U.S. Army Medical Command has been testing a leadership based structure to increase the performance of delivering construction and facility services in its system of $600M of construction and 26 major hospital facilities in the U.S. The organizational requirement was to minimize the management and oversight of contractors and simultaneously increase project performance. The research proposes that a leadership based structure can supplement the perception, preplanning, and risk minimization capability of a contractor's project manager, thus increasing the project performance (on time, within budget, and meeting expectations) and decreasing client management requirement. The projects were delivered in a best …

Contributors
Malhotra, Neha, Kashiwagi, Dean T, Sullivan, Kenneth, et al.
Created Date
2010

In the past, it has been assumed that measurement and predictive invariance are consistent so that if one form of invariance holds the other form should also hold. However, some studies have proven that both forms of invariance only hold under certain conditions such as factorial invariance and invariance in the common factor variances. The present research examined Type I errors and the statistical power of a method that detects violations to the factorial invariant model in the presence of group differences in regression intercepts, under different sample sizes and different number of predictors (one or two). Data were simulated …

Contributors
Olivera, Margarita, Millsap, Roger E., Aiken, Leona S., et al.
Created Date
2010

In the United States, recreational female golfers give up golf at twice the rate of recreational male golfers. This study explored the causal attributions of 240 recreational golfers after a practice session at a public golf facility. Attributions can be adaptive or maladaptive after a performance and can influence subsequent motivation to engage in a similar task again. It was hypothesized that male and female golfers would make significantly different attributions for their performance and that female golfers' attributions would be maladaptive. As the attrition rate for female golfers is highest in the first five years, it is also hypothesized …

Contributors
Shapcott, Susan, Husman, Jenefer, Brem, Sarah, et al.
Created Date
2010

The Resource Description Framework (RDF) is a specification that aims to support the conceptual modeling of metadata or information about resources in the form of a directed graph composed of triples of knowledge (facts). RDF also provides mechanisms to encode meta-information (such as source, trust, and certainty) about facts already existing in a knowledge base through a process called reification. In this thesis, an extension to the current RDF specification is proposed in order to enhance RDF triples with an application specific weight (cost). Unlike reification, this extension treats these additional weights as first class knowledge attributes in the RDF …

Contributors
Cedeno, Juan Pablo, Candan, Kasim S, Chen, Yi, et al.
Created Date
2010

An investigation of phase noise in amplifier and voltage-controller oscillator (VCO) circuits was conducted to show that active direct-current (DC) bias techniques exhibit lower phase noise performance than traditional resistive DC bias techniques. Low-frequency high-gain amplifiers like those found in audio applications exhibit much better 1/f phase noise performance and can be used to bias amplifier or VCO circuits that work at much higher frequencies to reduce the phase modulation caused by higher frequency devices. An improvement in single-side-band (SSB) phase noise of 15 dB at offset frequencies less than 50 KHz was simulated and measured. Residual phase noise of …

Contributors
Baldwin, Jeremy Bart, Aberle, James, Bakkaloglu, Bertan, et al.
Created Date
2010

The nature and correlates of emerging internalizing symptoms in young children are largely unknown. Maternal factors such as psychological symptoms and detached parenting style have been found to be present in children with anxiety and depression. Further, child attentional control in task completion has been associated with difficulty related to internalizing problems. This study tested hypotheses that child anxiety and depression at age five could be predicted by a combination of maternal distress and maternal detached behavior recorded at age three. An additional hypothesis was tested to determine if child attentional control at age four may be a partial mediator …

Contributors
Skelley, Shayna L., Crnic, Keith A, Eisenberg, Nancy, et al.
Created Date
2010

ABSTRACT Forgiveness is a response to moral wrongdoing motivated by moral reasons. Long thought to be the overcoming of resentment, I will present T.M. Scanlon's view that it is best understood as the decision to blame no longer, i.e. to give up the judgment that one's relationship with another is impaired. Forgiveness has been traditionally thought of as having its locus in the forgiver. However, this has led to a number of accounts in which forgiveness has been presented as a one-sided undertaking, compromising the interpersonal character of the act. I propose a different way of viewing forgiveness, namely as …

Contributors
D'Angelo, Cindy, De Marneffe, Peter L., Murphy, Jeffrie G., et al.
Created Date
2010

Biology textbooks are everybody's business. In accepting the view that texts are created with specific social goals in mind, I examined 127 twentieth-century high school biology textbooks for representations of animal development. Paragraphs and visual representations were coded and placed in one of four scientific literacy categories: descriptive, investigative, nature of science, and human embryos, technology, and society (HETS). I then interpreted how embryos and fetuses have been socially constructed for students. I also examined the use of Haeckel's embryo drawings to support recapitulation and evolutionary theory. Textbooks revealed that publication of Haeckel's drawings was influenced by evolutionists and anti-evolutionists …

Contributors
Wellner, Karen Linette, Maienschein, Jane, Ellison, Karin D., et al.
Created Date
2010

Celiac Disease (CD) is now widespread as one in 133 people are currently diagnosed, while there were only one in 150 in 2006. Much of the research concerning CD is still in the early stages, as formal epidemiological studies are relatively recent. CD is aggravated by the consumption of gluten, which is found mainly in wheat, rye, oats, and barley. Not surprisingly, the rising prevalence of CD has created a significant business opportunity for food manufacturers in developing products that are tailored to CD sufferers. While the entire Gluten-Free (GF) industry has been experiencing double digit growth rates, the expansion …

Contributors
Sampson, Jed, Richards, Timothy, Manfredo, Mark, et al.
Created Date
2010

ABSTRACT This thesis attempts to answer two questions based upon the historical observation that 1^2 +2^2 +· · ·+24^2 = 70^2. The first question considers changing the starting number of the left hand side of the equation from 1 to any perfect square in the range 1 to 10000. On this question, I attempt to determine which perfect square to end the left hand side of the equation with so that the right hand side of the equation is a perfect square. Mathematically, Question #1 can be written as follows: Given a positive integer r with 1 less than or …

Contributors
Roth, Sanford Gary, Bremner, Andrew, Childress, Nancy E, et al.
Created Date
2010