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2013

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New Sensorless, Efficient Optimized And Stabilized V/F Control For Pmsm Machines, Seyed Hesam Jafari Jan 2013

New Sensorless, Efficient Optimized And Stabilized V/F Control For Pmsm Machines, Seyed Hesam Jafari

Masters Theses

"With the rapid advances in power electronics and motor drive technologies in recent decades, permanent magnet synchronous machines (PMSM) have found extensive applications in a variety of industrial systems due to its many desirable features such as high power density, high efficiency, and high torque to current ratio, low noise, and robustness. In low dynamic applications like pumps, fans and compressors where the motor speed is nearly constant, usage of a simple control algorithm that can be implemented with least number of the costly external hardware can be highly desirable for industry. In recent published works, for low power PMSMs, …

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Production Of 1,3-Propanediol From Glycerol Under Haloalkaline Conditions By Halanaerobium Hydrogeniformans, Daniel William Roush Jan 2013

Production Of 1,3-Propanediol From Glycerol Under Haloalkaline Conditions By Halanaerobium Hydrogeniformans, Daniel William Roush

Masters Theses

"With increased demands around the world to make modern lifestyles more environmentally friendly, the chemical commodity market has rapidly shifted. Through new technologies in chemical production, certain high value products have oversaturated the market and have become high-volume, low value waste products. The expansion of biodiesel production offers a prime example; high volumes of glycerol byproduct from this process have shifted glycerol from a high priced commodity to a common waste product. A number of microorganisms are known to synthesize the polymeric precursor 1,3-propanediol from glycerol; however, crude glycerol from biodiesel production creates a harsh environment for most microbes, and …

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Direct Shear Transfer Of Lightweight Aggregate Concretes With Non-Monolithic Interface Conditions, Dane Michael Shaw Jan 2013

Direct Shear Transfer Of Lightweight Aggregate Concretes With Non-Monolithic Interface Conditions, Dane Michael Shaw

Masters Theses

"This thesis describes the results of a study initiated to examine the influence of concrete unit weight on the direct shear transfer across an interface of concretes cast at different times. This type of interface is common with structural precast concrete connections, such as corbels, for which shear friction design provisions are commonly used. Increasing use of lightweight aggregate concretes prompted this investigation to determine the appropriateness of current shear friction design provisions with respect to all-lightweight and sand-lightweight concrete. The experimental investigation included thirty-six push-off test specimens, each of which was constructed with a cold-joint at the interface shear …

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Constructing Conducted Emission Models For Integrated Circuits, Shuai Jin Jan 2013

Constructing Conducted Emission Models For Integrated Circuits, Shuai Jin

Masters Theses

"Conducted emissions, noise conducted out of integrated circuit pins, play an important role in determining the system level EMC performance. Characterizing conducted emissions from ICs is investigated and the corresponding noise models are developed in this thesis. Both simulation IBIS and measurement based methods for noise-model construction are studied. The constructed noise source model for a test IC is applied in system-level simulations and the calculated far field radiation is validated with measurements. The agreement in the simulated and measured results demonstrates the effectiveness of the constructed model for characterizing the conducted emissions from an IC I/O pin"--Abstract, page iii.

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Modeling Of Fracture And Durability Of Paste-Bonded Composite Joints Subjected To Hygro-Thermal-Mechanical Loading, David Lee Harris Jan 2013

Modeling Of Fracture And Durability Of Paste-Bonded Composite Joints Subjected To Hygro-Thermal-Mechanical Loading, David Lee Harris

Masters Theses

"The objective of the research is to characterize the behavior of composite/composite joints with paste adhesive using both experimental testing and analytical modeling. In comparison with the conventional tape adhesive, joining composites using paste adhesive provides several advantages. The carbon fiber laminate material systems employed in this study included IM7 carbon fibers and 977-3 epoxy matrix assembled in prepreg tape, and AS4 carbon fibers and 977-3 epoxy matrix as a five-harness satin weave. The adhesive employed was EA 9394 epoxy. All laminates and test specimens were fabricated and inspected by Boeing using their standard propriety procedures. Three types of test …

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Rules Or Standards For Intestate Succession?, Stewart E. Sterk Jan 2013

Rules Or Standards For Intestate Succession?, Stewart E. Sterk

Articles

No abstract provided.

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Exploring Taxation As A Substitute For Overregulation In The Development Process, Stewart E. Sterk Jan 2013

Exploring Taxation As A Substitute For Overregulation In The Development Process, Stewart E. Sterk

Articles

No abstract provided.

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The Effect Of Audit Market Concentration On Audit Pricing And Audit Quality : The Role Of The Size Of The Audit Market, John Daniel Eshleman Jan 2013

The Effect Of Audit Market Concentration On Audit Pricing And Audit Quality : The Role Of The Size Of The Audit Market, John Daniel Eshleman

LSU Doctoral Dissertations

The GAO has recently expressed concern that audit market concentration (i.e., not client concentration) could result in greater audit fees and lower audit quality. However, the extant literature finds that local audit markets with higher concentration have lower audit fees (Numan and Willekens 2012) and fewer accounting restatements (Newton et al. 2013). In this study, I show that the effect of audit market concentration on the level of audit fees depends on the size of the audit market (i.e., the size and/or number of clients in the local geographic area). When the audit market contains fewer clients and/or those clients …

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Studying Mechanisms Of Ionizing Radiation Resistance In Bacteria: Evidence For Multiple Pathways, Kathiresan Selvam Jan 2013

Studying Mechanisms Of Ionizing Radiation Resistance In Bacteria: Evidence For Multiple Pathways, Kathiresan Selvam

LSU Doctoral Dissertations

Our lab created ionizing radiation (IR) resistant populations of E. coli MG1655 through twenty cycles of exposure to IR and outgrowth. To identify the genetic alterations responsible for increased IR tolerance, a total of seven isolates from the evolved final population were re-sequenced. However, the individual isolates sequence analysis revealed wide variety of unique genomic alterations with little overlap between the seven isolates and therefore, did not reveal the clear picture of the mutations responsible for IR resistance. Our current research focused on distinguishing the relevant mutations from the non-relevant mutations that contribute to IR resistance by using two methods: …

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Experimental Study Of Optimal Energy Weighting In Energy-Resolved Ct Using A Czt Detector, Franco Rupcich, Taly Gilat-Schmidt Jan 2013

Experimental Study Of Optimal Energy Weighting In Energy-Resolved Ct Using A Czt Detector, Franco Rupcich, Taly Gilat-Schmidt

Biomedical Engineering Faculty Research and Publications

Recent advances in energy-resolved CT can potentially improve contrast-to-noise ratio (CNR), which could subsequently reduce dose in conventional and dedicated breast CT. Two methods have been proposed for optimal energy weighting: weighting the energy-bin data prior to log normalization (projection-based weighting) and weighting the energy-bin data after log normalization (image-based weighting). Previous studies suggested that optimal projection-based and image-based energy weighting provide similar CNR improvements for energy-resolved CT compared to photon-counting or conventional energy-integrating CT. This study experimentally investigated the improvement in CNR of projection-based and image-based weighted images relative to photon-counting for six different energy-bin combinations using a bench …

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Contested Identities And Language Education: Inculcating Nationalist Ideologies In The Basque Region, William Joseph Hogan Jan 2013

Contested Identities And Language Education: Inculcating Nationalist Ideologies In The Basque Region, William Joseph Hogan

Theses and Dissertations

Nationalist sentiment has a long history in the Basque regions of northern Spain. Culturally separate from the dominant Castilian society, separatists have for many years advocated for an independent Basque state. Following democratic reforms under the Constitution of 1978, regional cultures and languages were explicitly recognized and protected in Spain. This allowed for the current set of language laws in the Autonomous Community of Pa├â┬¡s Vasco in which Castilian Spanish and the Basque language of Euskara are held in equal status and recognition. Furthermore, Euskara has been recognized as a defining characteristic of Basque identity. The regional government has instituted …

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Creating A Framework For Systems-Based Graphic Analysis And The Assessment Of College-Level Introductory Biology Textbooks, Katherine Ellen Brooks Jan 2013

Creating A Framework For Systems-Based Graphic Analysis And The Assessment Of College-Level Introductory Biology Textbooks, Katherine Ellen Brooks

LSU Doctoral Dissertations

Ecological literacy in students has become an increasing concern for educators. Mounting environmental problems along with a growing amount of nature deficit disorder seen in children and adults alike provides the impetus for research in this area. Since many college biology classes are modeled around the same style and emphasis found in the textbooks used for those courses, this provided an avenue for an examination of these materials. This research involved the selection of five popular introductory, college-level biology textbooks for analysis. Three rubrics were created to assess the graphical components of the introductory and ecology chapters in each textbook. …

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Enhancing Firm Profitability By Improving Director Dynamics, Solange Charas Jan 2013

Enhancing Firm Profitability By Improving Director Dynamics, Solange Charas

Student Scholarship

Board performance research focused on individual director's economically-motivated behaviors and outcomes has generated inconsistent and disappointing results. Most research does not consider the board as a team, despite recent calls for a focus on collective board processes and behaviors. As 90% of directors rate their individual performance at very effective but only 30% rate overall board performance at an equivalent level, it is obvious that this gap needs to be addressed. The discrepancy between individual and team performance effectiveness was the focus of this research, based on original data from 182 directors and their assessment of their board's dynamic, team …

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Ley Maleable- El (Mal) Uso Del Derecho En La Consecucion De Una Agenda Politica, Manuel A. Gómez Jan 2013

Ley Maleable- El (Mal) Uso Del Derecho En La Consecucion De Una Agenda Politica, Manuel A. Gómez

Faculty Publications

Este artículo explora el uso manipulativo del derecho para la consecución defines políticos. En este artículo se describe un caso en el que el derecho es distorsionado y camuflajeado bajo la apariencia de estar al servicio de la justicia, el cambio social o el desarrollo; pero la verdadera función es facilitar el alcance de intereses políticos o de otra naturaleza. La manipulación del derecho es ilustrada en este artículo a través de una descripción de los programas sociales conocidos como "Misiones Bolivarianas, " implementados por el gobierno de Venezuela desde el año 2004. Las Misiones han sido publicitadas como medidas …

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Order In The Desert: Law Abiding Behavior At Burning Man, Manuel A. Gómez Jan 2013

Order In The Desert: Law Abiding Behavior At Burning Man, Manuel A. Gómez

Faculty Publications

No abstract provided.

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The Global Chase: Seeking The Recognition And Enforcement Of The Lago Agrio Judgment Outside Of Ecuador, Manuel A. Gómez Jan 2013

The Global Chase: Seeking The Recognition And Enforcement Of The Lago Agrio Judgment Outside Of Ecuador, Manuel A. Gómez

Faculty Publications

No abstract provided.

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Community Grants Snapshots: Q1 Of 2013, Center For Public Health Systems Science, Christopher Robichaux, Douglas Luke Jan 2013

Community Grants Snapshots: Q1 Of 2013, Center For Public Health Systems Science, Christopher Robichaux, Douglas Luke

Center for Public Health Systems Science

This snapshot provides outcomes of the Tobacco Prevention and Cessation Initiative from January to March of 2013, and includes site data, cessation services & quit rate data, systems & policy changes, and resources.

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Community Grants Snapshots: Q2 Of 2013, Center For Public Health Systems Science, Christopher Robichaux, Douglas Luke Jan 2013

Community Grants Snapshots: Q2 Of 2013, Center For Public Health Systems Science, Christopher Robichaux, Douglas Luke

Center for Public Health Systems Science

This snapshot provides outcomes of the Tobacco Prevention and Cessation Initiative from April to June of 2013, and includes site data, cessation services & quit rate data, systems & policy changes, and resources.

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Automated Color Calibration Of Display Devices, Andrew Shulman Jan 2013

Automated Color Calibration Of Display Devices, Andrew Shulman

All Computer Science and Engineering Research

If you compare two identical images on two different monitors, they will likely appear different. Every display device is supposed to adhere to a particular set of standards regulating the color and intensity of the image it outputs. However, in practice, very few do. Color calibration is the practice of modifying the signal path such that the colors produced more closely match reference standards. This is essential for graphics professionals who are mastering original content. They must ensure that the source material appears correct when viewed on a reference monitor. When viewed on a consumer panel, however, some error will …

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What Are The Key Competencies, Qualities, And Attributes Of The African American Municipal Police Chief?, Patrick Oliver Jan 2013

What Are The Key Competencies, Qualities, And Attributes Of The African American Municipal Police Chief?, Patrick Oliver

Antioch University Dissertations & Theses

The purpose of this dissertation was to identify and understand the dimensions of leadership of those African Americans, who are effective as the chief executive officer (CEO) of a municipal law enforcement agency, and thereby to educate and inform both those aspiring to be police chiefs and those presently serving as police chiefs, particularly African Americans. Four content areas were examined to gain a better understanding of the research question: (1) Police executive leadership literature; (2) African American leadership; (3) The trait theory of leadership; (4) emotional intelligence. Study participants were all African American police chiefs with the expertise and …

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Museums As Sites Of "Being In Conversation": A Hermeneutic Phenomenological Study, Randy C. Roberts Jan 2013

Museums As Sites Of "Being In Conversation": A Hermeneutic Phenomenological Study, Randy C. Roberts

Antioch University Dissertations & Theses

In times of great change, institutions must be able to adapt while not losing their essence, those qualities that are central, enduring, and distinctive. While it is understood and acknowledged that museums must change their approach to be relevant and sustainable in a world in which there have been monumental shifts in the ways that people communicate, access information, and experience connection, the essential qualities of museums are not well-defined or agreed upon. More than a decade into the new century and in spite of much discussion, contemplation, and experimentation, the 21st century museum model remains unsettled. To explore the …

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Financial Services Innovation: Opportunities For Transformation Through Facial Recognition And Digital Wallet Patents, Debora S. Bartoo Jan 2013

Financial Services Innovation: Opportunities For Transformation Through Facial Recognition And Digital Wallet Patents, Debora S. Bartoo

Antioch University Dissertations & Theses

Bringing innovation to the marketplace for new products and services involves creativity, a culture in which change flourishes, and leadership that thrives on transformation and complexity. This study explored the potential for market disruption or change based on innovations involving patents granted to nonfinancial services organizations that could affect financial services, specifically consumer or retail bank products. It involved analyzing documents related to recently granted patents and completing a mixed methods survey integrating the Delphi research technique. This method required multiple iterations of a survey presented to expert panelists or industry thought leaders to attempt to gain consensus ("Consensus", 2011) …

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In Situ Vision: The Student Experience Of Collaborative Learning In A Virtual Drawing Class, Annette Cohen Jan 2013

In Situ Vision: The Student Experience Of Collaborative Learning In A Virtual Drawing Class, Annette Cohen

Antioch University Dissertations & Theses

The purpose of this study was to elucidate the construct of collaboration and the co-construction of knowledge in a distance learning drawing class. Distance learning drawing classes are rare, due to resistance by fine arts departments holding onto traditions that date back to Renaissance times. As a result, there is a paucity of literature on the subject. This multiple method study seeks an understanding of how students collaborate in critiques, form virtual communities and socially construct knowledge about learning how to draw. The study commences with the following three research questions: what social processes facilitate learning to draw from the …

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Researching Critical Incidents Of Transformation, Paul R. Scheele Jan 2013

Researching Critical Incidents Of Transformation, Paul R. Scheele

Antioch University Dissertations & Theses

This study examined transformation within individuals in a collaborative adult learning context. Using a combination of methods—surveys and critical incident technique (CIT)—the study explored in depth the experiences of 28 subjects from a population of 100 participants in an open-enrollment workshop, the Awakening the Dreamer, Changing the Dream Symposium produced by the Pachamama Alliance. The program employs high-impact training approaches to inform participants about social injustices and environmental practices that threaten the planet, and to encourage them to act on that information. The research focused on critical incidents at or shortly after the workshop that produced significant and meaningful change …

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Laughing Buddhas: The Everyday Embodiment Of Contemplative Leadership, Kim Nolan Jan 2013

Laughing Buddhas: The Everyday Embodiment Of Contemplative Leadership, Kim Nolan

Antioch University Dissertations & Theses

Many of us struggle to find a theoretical framework within which to approach leadership. We may draw upon personal aspects of spiritual practice, scholarship, and vocational experience with hopes of developing a deeper method of conceptualizing all the elements that comprise relevant and meaningful ways of being and leading in the world. The purpose of this phenomenological study extends the inquiry, examining leadership as a path toward wholeness and investigating the research question – what is called into being for the contemplative leader? The roots of the question originate with the conceptual framework set forth by Kriger and Seng (2005), …

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The Role Of Agency In Community Health Outcomes: Local Health Departments And Childhood Immunization Coverage Rates, James Anthony Ransom Jan 2013

The Role Of Agency In Community Health Outcomes: Local Health Departments And Childhood Immunization Coverage Rates, James Anthony Ransom

Antioch University Dissertations & Theses

Organizational culture is defined as a system of shared meaning held by members of an organization that distinguishes it from other organizations. How organizational culture is experienced in the public sector, particularly local health departments (LHDs), is not well understood. The purpose of this study was to determine whether LHD organizational culture impacts childhood immunization coverage rates. I used a modified organizational culture survey tool, the Organizational Management Survey, to quantify organizational culture and determine whether an LHD's organizational culture helps explain variations in childhood immunization coverage rates. In addition, qualitative data from an earlier study of LHD immunization staff …

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Melungeon Portraits: Lived Experience And Identity, Tamara L. Stachowicz Jan 2013

Melungeon Portraits: Lived Experience And Identity, Tamara L. Stachowicz

Antioch University Dissertations & Theses

The desire to claim an ethnicity may be in response to an institutional and systemic political movement towards multiculturalism where ethnic difference is something to be recognized and celebrated (Jimenez, 2010; Tatum, 1997). Those who were a member of a dominant or advantaged group took that element of their identity for granted (Tatum, 1997). Identity work has included reflections and congruence between how individuals see themselves and how they perceive others to see them, including Optimal Distinctiveness Theory where one determines the optimal amount of individual distinctiveness needed to feel a healthy group and personal identity (Brewer, 2012). When most …

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Applying A Leadership Framework To Historically Black Colleges And Universities (Hbcus) Post Fordice, Armenta Hinton Jan 2013

Applying A Leadership Framework To Historically Black Colleges And Universities (Hbcus) Post Fordice, Armenta Hinton

Antioch University Dissertations & Theses

Historically Black Colleges and Universities (HBCUs) have a list of outstanding accomplishments that span over a century; however, this segment of higher education continues to be underfunded and remains in a position of justifying its existence in a postracial America. The issues facing HBCUs are significant. Race-based legislation has created a dual system of American higher education that adversely affects these minority serving institutions, impacting the quality of education they dispense and producing potentially negative effects on vulnerable and under-served collegians. Supreme Court Justice Thomas’s opinion in the U.S. v. Fordice (1992) case opposed the creation of HBCUs as “enclaves …

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I'Ll Choose Which Hill I'M Going To Die On: African American Women Scholar-Activists In The White Academy, Muriel Elizabeth Shockley Jan 2013

I'Ll Choose Which Hill I'M Going To Die On: African American Women Scholar-Activists In The White Academy, Muriel Elizabeth Shockley

Antioch University Dissertations & Theses

This study explored the complexities of African American women scholar-activists' lived experiences in predominately white institutions of higher education. Existing scholarship on African American women's experiences in the academy locates these academicians in predominately white research universities and liberal arts colleges (PWI's) as well as historically Black colleges and universities (HBCU's) and focuses on the tenure process, recruitment and retention, evaluation, student relationships, career satisfaction, mentoring, survival strategies, and administrative leadership. Overwhelmingly the foci of the research are the challenges African American women scholars face and the concomitant strategies employed to militate the consequences. Less apparent are the ways African …

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Measuring Normlessness In The Workplace: A Study Of Organizational Anomie In The Academic Setting, Tayo Glenn Switzer Jan 2013

Measuring Normlessness In The Workplace: A Study Of Organizational Anomie In The Academic Setting, Tayo Glenn Switzer

Antioch University Dissertations & Theses

The dissertation explores leadership and change by examining normlessness in the workplace through a multi-layered study of anomie theory, anomie research in the workplace, and organizational and business management theory. The research validates a quantitative survey designed to measure the level of normlessness experienced by workgroups within an organizational context. The survey reflects a set of six normative aspects that when disrupted produce organizational anomie—a state of normlessness that leads to an increase in worker resistance and a reduction in worker consent. The audience studied in this dissertation is associate professors at a large Midwestern research university. Data were gathered …

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