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2013

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Distributed Generation And Storage Optimal Control With State Estimation, F. Meng, D. Haughton, B. Chowdhury, Mariesa Crow, G. T. Heydt Dec 2013

Distributed Generation And Storage Optimal Control With State Estimation, F. Meng, D. Haughton, B. Chowdhury, Mariesa Crow, G. T. Heydt

Electrical and Computer Engineering Faculty Research & Creative Works

The increasing demand coupled with expanding installation of distributed resources call for the development of smart technologies to control and optimize distribution system operations. In this paper, a distributed generation and storage optimization algorithm is proposed using pricing signals as distribution locational marginal pricing (DLMP). This signal is used to optimize the day-ahead operation planning of distributed generation and energy storage. A distribution level state estimation algorithm is also designed. The main conclusion is that the proposed optimal control and state estimation will improve the energy efficiency and economic benefits in a digitally controlled distribution power system. © 2013 IEEE.

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Degrees Of Freedom Of The Single Antenna Gaussian Wiretap Channel With A Helper Irrespective Of The Number Of Antennas At The Eavesdropper, Mohamed Nafea, Aylin Yener Dec 2013

Degrees Of Freedom Of The Single Antenna Gaussian Wiretap Channel With A Helper Irrespective Of The Number Of Antennas At The Eavesdropper, Mohamed Nafea, Aylin Yener

Electrical and Computer Engineering Faculty Research & Creative Works

A Gaussian wiretap channel with a helper, i.e., a cooperative jammer, is considered and its secure degrees of freedom (s.d.o.f.) is computed. Previous work showed that the s.d.o.f. is upper bounded by 1 over 2 in this model when all parties are equipped with one antenna each. In this paper, the more challenging scenario where the eavesdropper has multiple antennas is tackled. Relying on structured signaling and cooperative jamming, specifically, by real interference alignment, it is shown that s.d.o.f. of 1 over 2 is achievable irrespective of the number of antennas the eavesdropper may have as long as the cooperative …

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Predictors Of Hiv Risk Behaviors Among Older Adults : A Multilevel Analysis., Laneshia Rae' Mccord Dec 2013

Predictors Of Hiv Risk Behaviors Among Older Adults : A Multilevel Analysis., Laneshia Rae' Mccord

Electronic Theses and Dissertations

Over the past thirty years, HIV has become a worldwide epidemic. Given the surge in the rate of sexually transmitted diseases including HIV, this sheds light as a new worry for sexually active older adults, raising questions about risk behaviors among this group. The issues facing older adults are three-fold in that they are 1) not identifying themselves as being at risk; 2) not identifying risk behaviors; and 3) are not largely being identified in the public realm as participating in risk behaviors. For these reasons, understanding both environmental and individual factors and their unique influences on HIV risk behaviors …

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An Improved Thin-Film Microelectrode Array And Signal Conditioning Board For Measuring Cardiac Surface Potentials., Christopher Hayward Osborne Dec 2013

An Improved Thin-Film Microelectrode Array And Signal Conditioning Board For Measuring Cardiac Surface Potentials., Christopher Hayward Osborne

Electronic Theses and Dissertations

The work outlined in this thesis expanded on previous work to improve a thin-film microfabricated electrode array intended for cardiac electrophysiology studies. A thin layer of silver was added in between titanium and platinum electrical trace layers to reduce electrode resistance. A 200 nm layer of silver decreased electrode resistance by an order of magnitude. In addition, a new high quality signal conditioning board was developed using precision operational amplifiers from Texas Instruments. Both new sensor and board design were verified together through in vivo studies using rabbit, goat, and dog hearts.

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Feasibility Of Using Computational Fluid Dynamics For Analysis Of Flow In An Orbiting Dish., Matthew R. Purcell Dec 2013

Feasibility Of Using Computational Fluid Dynamics For Analysis Of Flow In An Orbiting Dish., Matthew R. Purcell

Electronic Theses and Dissertations

The oscillatory flow provided by an orbital shaker table correlates somewhat to the pulsatile flow seen in the human vasculature. This parallel allows for the use of the orbital shaker table in a large range of biomedical research. However, the fluid dynamics is not well characterized in this system. This research employed the computational fluid dynamics (CFD) package FLUENT in an effort to better understand the fluid dynamics in an orbiting dish. This work was performed at low resolution as a first attempt to examine the fluid flow characteristics. The first objective was to determine the time required to reach …

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Xbp1 And Mist1 Are Not Sufficient To Induce The Regulated Secretory Pathway In Parotid Cell Lines., Ian S. Pyle 1986- Dec 2013

Xbp1 And Mist1 Are Not Sufficient To Induce The Regulated Secretory Pathway In Parotid Cell Lines., Ian S. Pyle 1986-

Electronic Theses and Dissertations

BACKGROUND: Xerostomia causes oral infections, tooth decay, and hindered digestion. Crucial to oral homeostasis is the salivary proteome. How these proteins are trafficked through secretory cells into secretory pathways is unknown. Abundant in the saliva is Parotid Secretory Protein (PSP), secreted through the regulated secretory pathway. HYPOTHESIS: The addition of XBP-1 and Mist1, known for differentiation marker regulation, to ParC10 cells will improve stimulated secretion of PSP. METHODS: Fusion clones were transiently or stably transfected into ParC10 cells. Media from non-stimulated and stimulated cells was harvested and luciferase activity was assayed. RESULTS: Stimulated secretion of cypridina-PSP was not significantly higher …

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The Impact Of Kindergarten Teachers' Theoretical Orientation To Reading On Curricular Planning And Classroom Practice In Literacy., Jacquelyn J. Singleton Dec 2013

The Impact Of Kindergarten Teachers' Theoretical Orientation To Reading On Curricular Planning And Classroom Practice In Literacy., Jacquelyn J. Singleton

Electronic Theses and Dissertations

Using case-study analysis, this dissertation is a qualitative examination of kindergarten teachers’ beliefs, theoretical orientation toward reading, and outside pressures and their impact upon the educators’ classroom practice for literacy instruction. Selected for the study based upon their scores on DeFord’s Theoretical Orientation to Reading Profile (1985), eight teachers participated in two in-depth interviews and two separate 30-minute classroom observations for which they provided lesson plans. They also completed the Reading Interest-A-Lyzer (Reis, 2005). The results were coded with a coding scheme developed around the Theoretical Orientation to Reading Profile and Vygotsky’s Activity Theory—the theoretical framework for the current study. …

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Smart Rocks And Wireless Communication System For Real-Time Monitoring And Mitigation Of Bridge Scour -- A Proof-Of-Concept Study, Genda Chen, David Pommerenke, Y. Rosa Zheng, Andriy V. Radchenko, Yan Tang, Brandon P. Schafer, Ying Huang, Z. L. Yang Dec 2013

Smart Rocks And Wireless Communication System For Real-Time Monitoring And Mitigation Of Bridge Scour -- A Proof-Of-Concept Study, Genda Chen, David Pommerenke, Y. Rosa Zheng, Andriy V. Radchenko, Yan Tang, Brandon P. Schafer, Ying Huang, Z. L. Yang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study aims to integrate commercial measurement and communication components into a scour monitoring system with magnets or electronics embedded in smart rocks, and evaluate and improve its performance in laboratory and field conditions for the movement of smart rocks. Properly-designed smart rocks were found to be automatically rolled into the very bottom of a scour hole and can give critical information about the maximum scour depth and effectiveness of rip-rap mitigation strategies. Four types of smart rock technologies were investigated in this proof-of-concept phase of study, including passive with embedded magnets, active with magneto-inductive communication, active with controllable magnet …

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Post-Mortem Analysis Of Cortical Thickness And Neuronal Morphometry In Autism., Shweta Sunil Kamat Dec 2013

Post-Mortem Analysis Of Cortical Thickness And Neuronal Morphometry In Autism., Shweta Sunil Kamat

Electronic Theses and Dissertations

Autism Spectrum Disorders (ASD) are a group of conditions characterized by a broad spectrum of deficiencies related to social communication, both verbal and non-verbal, as well as repetitive behaviors such as rocking back and forth, or arm flapping. This devastating group of disorders affects millions of people regardless of their socioeconomic, ethnic and racial backgrounds. Among other issues such as migraines, sensory deficits and intense aggression, epilepsy is a major neurological disorder very highly associated with ASD; roughly one third of all ASD patients are diagnosed with epilepsy, and a much higher proportion suffer from at least one seizure in …

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The Mediating Effect Of Homework Between Self-Regulated Learning And Science Achievement., Matthew D. Kingsley 1968- Dec 2013

The Mediating Effect Of Homework Between Self-Regulated Learning And Science Achievement., Matthew D. Kingsley 1968-

Electronic Theses and Dissertations

Homework has been shown to have a significant, positive effect on student achievement and grades, particularly at the secondary level (Cooper, Robinson, & Patall, 2006). However, homework completion and its effect on grades is controlled within the realm of the student and its success as a learning strategy depends on many things including the students’ interest in the subject, their confidence, the time they have to complete it, gender and other factors within the home such as parent education level and parent involvement (Trautwein & Ludtke, 2007; J. Xu, 2007; J. Xu, Corno, Lyn, 2006). Through the work of Eccles …

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Knitting As Art., Deborah Levine Dec 2013

Knitting As Art., Deborah Levine

Electronic Theses and Dissertations

Hand knitting is my chosen technique for making art. Because knitting is traditionally thought of as craft, my work must overcome several obstacles in order to be valued as art. First, objects made using craft techniques and materials are often functional; even when it is not, we view them as such and value them less than art. Second, the materials and techniques used for knitting are not traditional fine art materials. This has changed; process and materials are what much contemporary art is about. Yet the bias against craft techniques and materials persists. Finally, knitting is viewed as woman's work …

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Energy Analysis Of A Student-Designed Solar House, Samantha Wermager, Stuart Werner Baur Dec 2013

Energy Analysis Of A Student-Designed Solar House, Samantha Wermager, Stuart Werner Baur

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper presents the findings from an undergraduate research project concerning the energy efficiency, consumption, and generation of a 1000 ft2 (92.9 m2) solar house. The results were compared to a home of similar size and layout, built using traditional construction methods. The solar house was modeled after the Chameleon House: Missouri University of Science and Technology's 2013 entry in the U.S. Department of Energy Solar Decathlon. The efficiency of the design was analyzed using Energy-10 Version 1.8 software. For this comparison, a fictional American couple was created and a breakdown of their energy-use habits was recorded …

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An Inter-Domain Supervision Framework For Collaborative Clustering Of Data With Mixed Types., Artur Abdullin Dec 2013

An Inter-Domain Supervision Framework For Collaborative Clustering Of Data With Mixed Types., Artur Abdullin

Electronic Theses and Dissertations

We propose an Inter-Domain Supervision (IDS) clustering framework to discover clusters within diverse data formats, mixed-type attributes and different sources of data. This approach can be used for combined clustering of diverse representations of the data, in particular where data comes from different sources, some of which may be unreliable or uncertain, or for exploiting optional external concept set labels to guide the clustering of the main data set in its original domain. We additionally take into account possible incompatibilities in the data via an automated inter-domain compatibility analysis. Our results in clustering real data sets with mixed numerical, categorical, …

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Alignment Study Of Kentucky's Mathematics Placement Examinations And Entry Level Credit-Bearing Mathematics Course Examinations., Lisa Conn Dec 2013

Alignment Study Of Kentucky's Mathematics Placement Examinations And Entry Level Credit-Bearing Mathematics Course Examinations., Lisa Conn

Electronic Theses and Dissertations

This research alignment study compares content assessed on course finals from Kentucky public universities in highest level remedial mathematics courses and content assessed on college placement examinations. These assessments are used to determine if a student is ready for credit-bearing courses at a university. The study addressed the following four research questions: (1) What mathematical prerequisite knowledge do state universities consider necessary to be college ready? Specifically 1a) What content domains do the state universities emphasize in their remediation courses?; 1b) Is there consistency across the state public universities with regard to the content domains?; and (2) How well do …

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Deconstructing Saccades : Identifying The Components Of Saccades That Produce Saccade-Induced Retrieval Enhancement., James Matthew Edlin Dec 2013

Deconstructing Saccades : Identifying The Components Of Saccades That Produce Saccade-Induced Retrieval Enhancement., James Matthew Edlin

Electronic Theses and Dissertations

Multiple studies have found that performing repetitive saccades for 30 s improves subsequent memory retrieval. Although the effect is well established, the mechanism by which saccades affect retrieval is currently unknown. Saccade-induced retrieval enhancement (SIRE) has been hypothesized to be a product of increasing: interaction between the hemispheres, interaction within the hemispheres, or attentional control. It is currently unknown which components of the saccade activity are necessary to produce SIRE. The saccade activity in previous SIRE research is similar to an orienting activity that produces predictive saccades. Predictive saccades begin as exogenous orienting to a rhythmically alternating target. After a …

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Designing A Robust Production System For Erratic Demand Environments., Joseph Elias El-Khoury 1963- Dec 2013

Designing A Robust Production System For Erratic Demand Environments., Joseph Elias El-Khoury 1963-

Electronic Theses and Dissertations

Production systems must have the right type of material in the right quantities when required for production. They must minimize the work in progress while ensuring no stock-outstock-out occurs. While these twin opposing goals are achievable when demand is stable, they are difficult to realize under an erratic demand pattern. This dissertation aims to develop a production system that can meet erratic demands with minimal costs or errors. After a detailed introduction to the problem considered, we review the relevant literature. We then conduct a numerical analysis of current production systems, identify their deficiencies, and then present our solution to …

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A Non-Invasive Method For Measuring Blood Flow Rate In Superficial Veins From A Single Thermal Image., Heba E. Farag Dec 2013

A Non-Invasive Method For Measuring Blood Flow Rate In Superficial Veins From A Single Thermal Image., Heba E. Farag

Electronic Theses and Dissertations

Computer vision is a field that includes methods for processing, analyzing, acquiring and understanding images to produce numerical or symbolic information to develop methodologies and solutions for many problems in many fields. Here the concept of computer vision is being used for understanding certain human physiology and behaviors using thermal imaging alone or in conjunction with other imaging modalities. The applications of this work span a wide range of studies in human-machine interfacing vis-à-vis feedback controls that can be used to remotely determine whether a patient is in need of medical assistance or to help integrate young children with learning …

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Site 15sp202 And The Mississippian Presence At The Falls Of The Ohio River., William Travis Fisher 1983- Dec 2013

Site 15sp202 And The Mississippian Presence At The Falls Of The Ohio River., William Travis Fisher 1983-

Electronic Theses and Dissertations

The following paper is an analysis of the decorated ceramics associated with site 15SP202, a Mississippi Period site in Spencer County, Kentucky. The ceramics were then used to determine whether the site had been classified correctly by its original investigator, due to the ambiguity often associated with assigning temporal and cultural affiliation to late prehistoric sites in the Falls of the Ohio River region. After the initial analysis, the author compared and contrasted 15SP202 with other known and more fully excavated Mississippian sites in the region, in an attempt to integrate the site in question into a wider regional context. …

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Peptide Mediated Inhibition Of Porphyromonas Gingivalis Dual And Three Species Biofilms., Naga Srinija Gummadi Dec 2013

Peptide Mediated Inhibition Of Porphyromonas Gingivalis Dual And Three Species Biofilms., Naga Srinija Gummadi

Electronic Theses and Dissertations

The colonization of Porphyromonas gingivalis is the key phase in transformation of bacterial biofilm from a commensal plaque to pathogenic form observed in periodontitis. Objectives: The goals of this study are to establish optimum levels of Porphyromonas gingivalis, Streptococcus gordonii and Fusobacterium nucleatum to reproducibly generate dual and three species biofilms and examine inhibition of biofilm formation by BAR peptide and BAR analogs C1-24 R1182 I1185 BAR, R1182 I1185 BAR and C1-24 BAR. Methods: S. gordonii was grown in BHIY media; P. gingivalis and F. nucleatum were grown in TSBY and BHI media respectively supplemented with hemin and menadione. Labeled …

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Cultural Interpretations Of Socratic And Confucian Education Philosophy., Wang Heng Dec 2013

Cultural Interpretations Of Socratic And Confucian Education Philosophy., Wang Heng

Electronic Theses and Dissertations

Socrates and Confucius constitute roots of western and eastern civilization respectively, as well as represent very different cultural values and educational traditions. Because of the very limited existing literature on the study of their educational philosophies, this paper is devoted to a comparative study of their educational philosophies, attempting to examine their historical and cultural contexts and unravel their implications on the current educational practices. The method employed in the study is hermeneutics, or interpretation of the literary texts. At the same time, the study is also cross-cultural in nature. Both of the philosophers lived around 4-5th century B.C.E., but …

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Linking Corporate Strategy To Operations : A Critical Review Of Prof. Kaplan’S Theories And The Development Of A Best-Practice Approach., Alexander Bogner Dec 2013

Linking Corporate Strategy To Operations : A Critical Review Of Prof. Kaplan’S Theories And The Development Of A Best-Practice Approach., Alexander Bogner

Electronic Theses and Dissertations

The rising speed of change in global frameworks drives international companies into a non-stop changing organization with the need of generating optimal revenues under changing conditions. Regarding to the need to be a flexible and competitive organization the value of a vision and a perfectly streamed strategy to this vision becomes a main success factor for global business. The trend for the need of development of a clear and constant strategy is equally rising with the trend of globalization and intercontinental business companies and therefor the business of strategy consulting rises constantly from the late 1990. Most of the strategy …

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A Multiple Objective Optimization Approach To The Decommissioning And Dismantling Of A Nuclear Power Plant., Sven Sudholt 1974- Dec 2013

A Multiple Objective Optimization Approach To The Decommissioning And Dismantling Of A Nuclear Power Plant., Sven Sudholt 1974-

Electronic Theses and Dissertations

The complexity, relevance and critical nature of the decommissioning of nuclear power plants (NPP) are of great significance in today's society. Following the catastrophe in Fukushima a shift in the general public's perception of NPP took place throughout the world and in Europe in particular. In this dissertation interdisciplinary methods will be discussed to identify solutions which take into account the technological complexity and organizational issues involved in the dismantling and decommissioning process of NPP. Operations research, lean management, simultaneous engineering, cost analysis, multiple-objective optimization, project management, software tools are powerful concepts and methodologies when undertaking the dismantling and decommissioning …

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Territoriality And Landscape Of Aggression., Piyumika Sureshni Suriyampola Dec 2013

Territoriality And Landscape Of Aggression., Piyumika Sureshni Suriyampola

Electronic Theses and Dissertations

Behavioral adjustments in response to the presence of landmarks can exert strong effects on population dynamics of territorial species as well as the evolution of behavior and social systems. Hence, an understanding of the role of landmarks in animal contests provides a link between behavioral decision-making and population dynamics, which has been viewed as a major goal in ecology. This dissertation investigates the effects of landmarks on territory defense, focusing on how landmarks affect differences in sex roles, the landscape of aggression and fundamental territory properties. To investigate these ideas, I used three different cichlid fish species as model systems. …

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A Novel Work-Sharing Protocol For U-Shaped Assembly Lines, Srinath Sriram Dec 2013

A Novel Work-Sharing Protocol For U-Shaped Assembly Lines, Srinath Sriram

Theses

Companies worldwide try to employ contemporary manufacturing systems that can cope with changes in external competitive environments and internal process variability. Just In Time (JIT) philosophy helps achieve the required resilience by its policy of having people, machines, and material just-in-time for any given process. U-shaped assembly lines (U-lines) are used to implement JIT principles. Another principle that helps achieve competitive advantage by developing a flexible workforce that responds efficiently to change is that of work-sharing. Operators share work and help each other in a dynamic and floating way, requiring little management effort to distribute workload amongst operators, or balance …

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Finite Horizon Stochastic Optimal Control Of Uncertain Linear Networked Control System, Hao Xu, S. Jagannathan Dec 2013

Finite Horizon Stochastic Optimal Control Of Uncertain Linear Networked Control System, Hao Xu, S. Jagannathan

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, finite horizon stochastic optimal control issue has been studied for linear networked control system (LNCS) in the presence of network imperfections such as network-induced delays and packet losses by using adaptive dynamic programming (ADP) approach. Due to an uncertainty in system dynamics resulting from network imperfections, the stochastic optimal control design uses a novel adaptive estimator (AE) to solve the optimal regulation of uncertain LNCS in a forward-in-time manner in contrast with backward-in-time Riccati equation-based optimal control with known system dynamics. Tuning law for unknown parameters of AE has been derived. Lyapunov theory is used to show …

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Exploration Of Ethnic Differences Between Hispanic And Marshallese Mothers' Child Body Perceptions And Factors That Impact Childhood Obesity, Ashley Paige Latimer Dec 2013

Exploration Of Ethnic Differences Between Hispanic And Marshallese Mothers' Child Body Perceptions And Factors That Impact Childhood Obesity, Ashley Paige Latimer

The Eleanor Mann School of Nursing Undergraduate Honors Theses

Childhood obesity is on the rise in the United States, especially among the Southern states and in minority ethnic groups. This condition is a known contributor to many chronic diseases, such as diabetes and cardiovascular disease, which develop in early adulthood. The Marshallese people - whose population is higher in Northwest Arkansas than anywhere else in the contiguous United States - have a high incidence of obesity and diabetes. Additionally, the Hispanic population per capita in Northwest Arkansas is more than triple that of the state of Arkansas, and have comparable obesity rates to the Marshallese population. The purposes of …

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Machine-Vision-Based Pose Estimation System Using Sensor Fusion For Autonomous Satellite Grappling, Andres Felipe Velasquez Escandon Dec 2013

Machine-Vision-Based Pose Estimation System Using Sensor Fusion For Autonomous Satellite Grappling, Andres Felipe Velasquez Escandon

Graduate Theses, Dissertations, and Problem Reports (ETD)

When capturing a non-cooperative satellite during an on-orbit satellite servicing mission, the position and orientation (pose) of the satellite with respect to the servicing vessel is required in order to guide the robotic arm of the vessel towards the satellite. The main objective of this research is the development of a machine vision-based pose estimation system for capturing a non-cooperative satellite. The proposed system finds the satellite pose using three types of natural geometric features: circles, lines and points, and it merges data from two monocular cameras and three different algorithms (one for each type of geometric feature) to increase …

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Aerodynamic Parameter Identification Of A Venus Lander, Robert A. Sykes Dec 2013

Aerodynamic Parameter Identification Of A Venus Lander, Robert A. Sykes

Graduate Theses, Dissertations, and Problem Reports (ETD)

An analysis was conducted to identify the parameters of an aerodynamic model for a Venus lander based on experimental free-flight data. The experimental free-flight data were collected in the NASA Langley 20-ft Vertical Spin Tunnel with a 25-percent Froude-scaled model. The experimental data were classified based on the wind tunnel run type: runs where the lander model was unperturbed over the course of the run, and runs were the model was perturbed (principally in pitch, yaw, and roll) by the wind tunnel operator. The perturbations allow for data to be obtained at higher wind angles and rotation rates than those …

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Meeting The Demand For Local Food In West Virginia: An Analysis Of Factors Influencing Producers' Market Participation And Expansion Decisions, Ruth Mary Oldham Dec 2013

Meeting The Demand For Local Food In West Virginia: An Analysis Of Factors Influencing Producers' Market Participation And Expansion Decisions, Ruth Mary Oldham

Graduate Theses, Dissertations, and Problem Reports (ETD)

Increasing demand in local food markets in WV offers a new or enhanced income generation opportunity to small producers. An ostensible gap in supply to meet this demand sparks an investigation of the factors that influence producers' decisions, as reflected by their behavior and intentions, to participate and expand in local food markets. The factors that influence both the behavior of current commercial producers and potential new entrants are identified through analysis of data collected through a survey of producers identified by field professionals. Specifically, the influence of motivational and place-based sociocultural characteristics, based on guidance from social psychology Theory …

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Subsurface Paleo-Stream Reach Reconstruction And Classification Using Seismic Data Interpretation, Benjamin Ward Dotson Dec 2013

Subsurface Paleo-Stream Reach Reconstruction And Classification Using Seismic Data Interpretation, Benjamin Ward Dotson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Incorporating the techniques and applications used in the 3D seismic geophysical interpretations with the Rosgen (1996) stream classification, this study was able to identify paleo-stream reaches in the Frio Formation within the Stratton 3D seismic data set. Hydraulic geometry variables from Rosgen's classification scheme were used to classify paleo-stream reaches shown in the seismic data. Estimated paleo-discharges were reconstructed to compare the potential magnitude of flow in the paleo-stream reaches to that in modern rivers in Texas and Mississippi. However, classification and discharge results were accompanied with a high margin of error and many uncertainties regarding the stream channel's geometry …

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