Digital Commons Network^™

Metaphasia: Shelley And The Language Of Remoter Worlds, Michael Andrew Howell

Master's Theses

The aim of this project was to trace the evolution of Percy Shelley's metaphasic narrative, or language of the dead, chronologically through the Hymn to Intellectual Beauty, Mont Blanc, and Prometheus Unbound. Proceeding from Earl Wasserman's detailed map of Shelley's mythopoeic structure, I charted this evolution while identifying a fifth discrete entity within the mythological hierarchy of what Harold Bloom has characterized as a "mythopoeic trilogy" (36). Concurrently, I examined the ongoing debate concerning Shelley's influences, as well as the early formation of his personality, as it pertains to the poems in question, and his fascination with worlds beyond the …

Investigation Of A Simulated Annealing Cooling Schedule Used To Optimize The Estimation Of The Fiber Diameter Distribution In A Peripheral Nerve Trunk, Arya Vigeh

Master's Theses

In previous studies it was determined that the fiber diameter distribution in a peripheral nerve could be estimated by a simulation technique known as group delay. These results could be further improved using a combinatorial optimization algorithm called simulated annealing. This paper explores the structure and behavior of simulated annealing for the application of optimizing the group delay estimated fiber diameter distribution. Specifically, a set of parameters known as the cooling schedule is investigated to determine its effectiveness in the optimization process.

Simulated annealing is a technique for finding the global minimum (or maximum) of a cost function which may …

Semiconductor Laser Device-Level Characteristics, Clement K. Law

Master's Theses

High-speed modulations of the semiconductor lasers are highly desirable in cost-effective optical communication systems.  Developing the experimental setups to extract the characteristics of the semiconductor lasers is vital to the future of the optical research projects.  In this thesis, integrated experimental setup designs have been developed to measure the characteristics of the Vertical Cavity Surface Emitting Laser (VCSEL), Distributed Feedback (DFB), and Fabry-Pérot (FP) lasers.  The measurements of the DC characteristics are optical power versus drive current (L-I) curves (DFB, VCSEL) and optical spectra (FP, DFB, VCSEL).  In addition, the high-speed optical detection measurement of the optoelectronic frequency responses for …

Blueberry Fruit Development And Splitting, Carrie Lee Witcher

Master's Theses

Rain-related splitting of blueberry fruit is a problem facing growers in the southeastern United States and causes an estimated profit loss of up to 20% ($300- $500 per acre). Studies of this phenomenon in other thin-skinned, soft, fleshy fruit showed that no single or set of related physiological or anatomical property explained splitting. Similar research on blueberry fruit was inconclusive, thus a different approach was suggested. l sampled five cultivars at various stages of development distributed across acknowledged split-resistant (SR) and split-susceptible (SS) categories including both rabbiteye and southern highbush types. Several developmental studies were completed at the light microscope …

The Role Of Hardiness In Moderating Parenting Stress In Iraq And Afghanistan War Veterans, Victoria Jane Tomassetti-Long

Master's Theses

There is a link between parenting stress and negative child outcomes. Research has focused on a number of risk and protective factors that may influence parental practices and child behavior. Parental trauma has been identified as a risk factor for increased parental stress. Previous research has demonstrated a link between combat exposure and parenting stress in veterans of war. Hardiness, a personality variable that describes an individual's sense of commitment, control, and challenge in light of life stress, has been identified as a protective factor that buffers against the development of psychological symptoms in combat veterans. The current study assessed …

Modeling Saltmarsh Sparrow Distribution In Connecticut, Susan T. Meiman

Master's Theses

To develop a map that would predict where saltmarsh sparrows live and reproduce in Connecticut, I compared models to test a) whether field data or remote-sensing data most effectively characterized within-marsh conditions that relate to sparrow occurrence, and b) whether including landscape-level variables improved model fit.  The best sparrow presence model used a variable derived from raw spectral reflectance values associated with plots where sparrows did not occur, while the best nest presence model used a combination of vegetation structure descriptions.   A second nest model, built using high resolution remote sensing data that organized marsh characteristics into high and low …

Exploring Trade-Offs In Auv Controller Design For Shark Tracking, Louis James Bertsch Iv

Master's Theses

This thesis explores the use of an Autonomous Underwater Vehicle (AUV) to track and pursue a tagged shark through the water. A controller was designed to take bearing and range to the shark tag and then control the AUV to pursue it.

First, the ability of a particle filter to provide an accurate estimation of the location of the shark relative to the AUV is explored. Second, the ability of the AUV to follow the shark's path through the water is shown. This ability allows for localized environmental sampling of the shark's preferred path. Third, various path weightings are used …

Effects Of Wildland-Urban Interface Fuel Treatments On Potential Fire Behavior And Ecosystem Services In The Central Sierra Nevada Mountains Of California, Christopher C. Hamma

Master's Theses

ABSTRACT

EFFECTS OF WILDLAND-URBAN INTERFACE FUEL TREATMENTS ON POTENTIAL FIRE BEHAVIOR AND ECOSYSTEM SERVICES IN THE CENTRAL SIERRA NEVADA MOUNTAINS OF CALIFORNIA

Christopher C. Hamma

For the past several decades, the wildland-urban interface (WUI) has been expanding in the low- to mid-elevation mixed-conifer belt of California’s Sierra Nevada mountain range. Concurrently, the effects of fire exclusion and shifting climatic patterns in this region have led to increases in wildfire size and severity, posing an ever-greater risk to life and property. As a result, the need for implementation of fuel treatments to reduce fire hazard is generally recognized to be urgent. …

Effects Of Pruning Level And Canopy Management Practices On Berry Maturation Rate And Harvest Parameters Of Syrah Wine Grapes, Jeffery S. Landolt

Master's Theses

Syrah is an important wine grape in California but is potentially difficult to manage in the vineyard due to its excessive vigor.  Vigorous grapevines require more labor for canopy management and tend to create excess shade, decreasing fruit quality.  Winter pruning level, shoot thinning and leaf removal influence the overall density of the canopy and the subsequent degree of shade in the fruit zone.  An experiment was conducted to assess the effects of two pruning levels with three degrees of labor-intensive canopy management techniques on berry maturation rate and harvest berry parameters for two growing seasons.  In 2008, repeated measures …

Water And Air Quality Performance Of A Reciprocating Biofilter Treating Dairy Wastewater, Seppi Matthew Henneman

Master's Theses

ABSTRACT

Water and Air Quality Performance of a Reciprocating

Biofilter Treating Dairy Wastewater

Seppi Matthew Henneman

Agricultural non-point source pollution is the leading water quality problem in surface water and the second leading problem in ground water in the US.  Among the contaminants, nutrients (such as nitrogen, phosphorus, potassium) can be transported from agricultural fields when cropland is not managed properly.  In California, dairy manure application to cropland has become tightly regulated with the goal of decreasing such nutrient pollution.  Dairies unable to balance their manure nutrient supply with cropland application area may benefit from a nitrogen removal technology.  One …

An Investigative Study Of Gurney Flaps On A Naca 0036 Airfoil, Gregory F. Altmann

Master's Theses

This project examined the effect of Gurney flaps on a 2D, 2-ft chord NACA 0036 airfoil in the Cal Poly 3’x4’ low speed wind tunnel at 25 m/s.  It also covered the numerical simulation of the experiment in computational fluid dynamics (CFD).  During the study, problems with the wind tunnel data were seen.  After a careful diagnosis, the problem was traced to dirty flow conditioners which were subsequently replaced.

Five Gurney flaps at 1, 2, 3, 4, and 5% of the chord were tested.  The Gurney flaps had the effect of eliminating the lift reversal effect and lowering the profile …

A Study Of Osteocyte Apoptosis By Region And Quadrant In Murine Cortical Bone, Jessica Kristen Chan

Master's Theses

ABSTRACT

A Study of Osteocyte Apoptosis by Region and Quadrant in Murine Cortical Bone

Jessica Kristen Chan

Osteocytes undergo apoptosis to spatially and temporally initiate bone remodeling.  This study investigates the distribution of apoptotic osteocytes within different quadrants and regions of cortical bone and compares the frequency of osteocyte apoptosis to regional factors associated with bone remodeling.  Specifically, the quantity of apoptosis was compared to levels of the bone morphagenic protein antagonists noggin and gremlin.  Samples of unloaded right tibial bone obtained from C57/Bl/6 mice underwent TUNEL staining for apoptotic osteocytes and were counterstained with methyl green to detect osteocyte …

Universal Engineering Programmer – An In-House Development Tool For Developing And Testing Implantable Medical Devices In St. Jude Medical, Khoa Tat Do

Master's Theses

During development and testing of the functionality of the pacemaker and defibrillator device, engineers in the St. Jude Medical Cardiac Rhythm Management Division use an in-house development tool called Universal Engineering Programmer (UEP) to ensure the device functions as expected, before it can be used to test on an animal or a human during the implantation process.  In addition, some applications of UEP are incorporated into the official releases of the device product.  UEP has been developed and used by engineers across departments in the St. Jude Medical Cardiac Rhythm Management Division (CRMD).  This thesis covers the flexible and reusable …

High-Resolution, Non-Contact Angular Measurement System For Psa/Rsa, Ronald D. Sloat

Master's Theses

A non-contact angular measurement system for Pitch Static Attitude (PSA) and Roll Static Attitude (RSA) of hard disk drive sliders is designed and built. Real-time sampling at over 15 KHz is achieved with accuracy of +/- 0.05 degrees over a range of approximately 2-3 degrees. Measuring the PSA and RSA is critical for hard drive manufacturers to control and improve the quality and reliability of hard drives. Although the hard drive industry is able to measure the PSA and RSA at the subassembly level at this time, there is no system available that is able to measure PSA/RSA at the …

Modern Leadership Compared To Historical Leadership Shown Biblically, Forrest Jones

Master's Theses

Modern Leadership Compared to Historical Leadership Shown Biblically

Forrest Jones

This thesis is a comparison between modern leadership and historical leadership.  Modern leadership has been differentiated from management since the early 1980’s.  Historical leadership is shown by Jesus Christ through the Bible, used as a historical text.  Historical leadership was found to have two separate tools used by Jesus Christ which would be useful additions to what leadership today is.  The first tool is submission to authority.  Most people in positions that would be considered leadership positions do not feel that they need to follow anyone else.  Often times they …

Tower-Tracking Heliostat Array, Joel T. Masters

Master's Theses

This thesis presents a method of tracking and correcting for the swaying of a central receiver tower in concentrated solar production plants.  The method uses a camera with image processing algorithms to detect movement of the center of the tower.  A prototype was constructed utilizing a CMOS camera connected to a microcontroller to control the movements of three surrounding heliostats.  The prototype uses blob-tracking algorithms to detect and correct for movements of a colored model target.  The model was able to detect movements in the tower with average error of 0.32 degrees, and was able to correctly orient the surrounding …

Dynamic Inversion And Backstepping Controller Robustness Analysis For A Reusable Launch Vehicle, Janet M. Coakley

Master's Theses

The Air Force has been working towards developing technology for operationally responsive space (ORS), which is the ability to launch military assets into space without the long set up time currently required. Part of the solution to ORS is to develop a reusable booster vehicle capable of sending any vehicle into orbit, then descending back to the atmosphere and landing unpowered so that it may take another vehicle into orbit with a 48 hour turnaround time. Currently classical gain tuning techniques are used to design a controller for a specific mission, which may hinder the vehicle’s ability to perform multiple …

Utilization Of Geographic Information System For Research, Management, And Education In The Natural Resources Management Department At California Polytechnic State University, San Luis Obispo, David In Yun

Master's Theses

Geographic Information System (GIS) is “an organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information” (ESRI, 1997a). The Natural Resources Management Department at California Polytechnic State University, San Luis Obispo, California, hereafter NRM, was one of the early users of GIS technology. Although GIS was primarily used as an educational tool, it was also used for cataloging and displaying resource information for management planning and research projects. As the computing technology advanced, GIS became more powerful and easier to use. NRM faculty and …

Laser Etched Pmma Microfluidic Chip Design And Manufacture With Applications In Capillary Zone Electrophoresis, Evan Allen Barbre

Master's Theses

This thesis encompasses a feasibility study of using low-cost materials to manufacture microfluidic chips that can perform the same functions as chips manufactured using traditional methods within an acceptable range of efficiency of chips created with more exotic methods and materials. The major parts of the project are the selection and characterization of the fabrication methods for creating the channels for fluid flow, the methods for sealing the channels to create a usable chip and the electrophoretic separations of carboxylated microspheres of different potentials. In this work we seek to answer the question if laser-etched PMMA microfluidic chips are comparable …

The Testing And Future Developments Of A Nerve Stimulation Device For The Treatment Of Migraines, Alyssa Erin Hopkins

Master's Theses

The development of neural stimulations devices may help treat many patients who suffer from migraines and chronic headaches via an electrical stimulation to the patient’s nerve. The electrical stimulation will mask the pain associated with these diseases. The system is subcutaneously implanted into the back of the neck and recharged via inductive coupling. Discussed is the transmission of signals in nerve fibers and the testing involved with neural stimulation implantable devices. Research was performed for preliminary testing on the charging rates, tests to analyze the heat dissipated during recharging, ergonomic factors to be considered, developing a model to simulate an …

A Microsimulation Of Traffic, Parking, And Emissions At California Polytechnic State University – San Luis Obispo, Steven Michael Kilbert

Master's Theses

Traffic and parking congestion are significant issues at many universities nationwide. The delays experienced result in wasted time, money, and fuel for students, faculty and staff, not to mention the negative contributions to the environment. This paper quantifies the amount of vehicle emissions generated during an average morning peak hour in the university environment. Using VISSIM and CMEM microsimulation packages, a model is created for California Polytechnic State University- San Luis Obispo to aggregate the collective transportation behaviors and practices of the campus and recognize the implications these behaviors pose on the transportation network as a whole. Reasonable estimates are …

Sar Map Of Gel Phantom In A 64mhz Mri Birdcage By Fiber-Optic Thermometry And Fdtd Simulation, Chirag Mukesh Patel

Master's Theses

As implantable medical devices are being used more often to treat medical problems for which pharmaceuticals don’t suffice, it is important to understand their interactions with commonly used medical modalities. The interactions between medical implants and Magnetic Resonance Imaging machines have proven to be a risk for patients with implants.

Implanted medical devices with elongated metallic components can create harmful levels of local heating in a Magnetic Resonance Imaging (MRI) environment [1]. The heating of a biological medium under MRI is monitored via the Specific Absorption Rate (SAR). SAR, defined as power absorbed per unit mass (W/kg), can be calculated …

Kickin' It With God: Clerical Behavior, Denominational Meaning, And The Expression Of Emotion In Ritual, Christopher M. Donnelly

Master's Theses

In the contemporary West, religious worship is very much a collective, guided phenomenon. Based upon interviews and participant observation in Catholic, Congregationalist, and Evangelical services, this paper examines congregant emotional displays influenced via micro behavioral techniques utilized by church officials versus macro denominational meanings during religious ceremony. In particular, the argument is made that while performance acts used by church officials do have some impact upon the emotional expression of the congregation, it is the shared meanings expressed through the denominational tradition that exercise a significant influence upon emotional displays in rituals. Therefore, while ritual is guided, it is more …

Robust Region Tracking In Multi-Agent Systems Utilizing Sliding Mode Control: Theory And Applications, Mark Bacon

Master's Theses

This thesis presents a methodology to bring controlled agents within a moving region despite agent interaction dynamics, uncertain forces and parameter variation. The logic is derived from traditional Sliding Mode Control theory with an expanded boundary layer which allows position deviation from the region center to specified bounds. As an example of the utility of this control, multiple methods of herding (controlling passive agents by appropriate positioning of controlled agents) are presented.

Supporting Introductory Test-Driven Labs With Webide, Thomas C. Dvornik

Master's Theses

WebIDE is a new web-based development environment for entry-level programmers with two primary goals: minimize tool barriers to writing computer programs and introduce software engineering best practices early in a student's educational career. Currently, WebIDE focuses on Test-Driven Learning (TDL) by using small iterative examples and introducing lock-step labs, which prevent the student from moving forward until they finish the current step. An initial set of labs and evaluators were created as examples of how to use WebIDE and were used in a pilot study in a CS0 course where students were split into two groups, one that used WebIDE …

Congrats: A Configurable Granular Trust Scheme For Effective Seller Selection In An E-Marketplace, Ogbonnaya Boniface Akpa

Master's Theses

Problem. The e-marketplace of today, with millions of buyers and sellers who never get to meet face to face, is susceptible to the presence of dishonest and fraudulent participants, prowling on unsuspecting trading partners to cheat in transactions, thereby increasing their profit to the detriment of their victims. There is also the multiplicity of goods and services with varying prices and quality, offered by a mix of honest and dishonest vendors. In order to participate in trade without incurring substantial loss, participants rely on intelligent agents using a trust evaluation scheme for partner selection. Making good deals thus depends on …

Emplacing Ideologies Of Risk And The Use Of The Built Environment In Two Women's Residential Clubs In Turn Of The 20th Century Chicago, Robin Bartram

Master's Theses

Risk emplacement is a way we might better understand how power relations are built into people's everyday lives, and thus how they may be contested. Though previous research has documented that built form can regulate and express ideology, little attention has been paid to how buildings are employed and utilized to manage risk. In this paper, I argue that differences in ideas about risk and the built form of two residential women's clubs in Progressive Era Chicago can be explained by emplaced risk ideologies. Risk ideologies are sets of ideas about danger, and risk emplacement is a practice that links …

Composition And Provenance Of Sand From Wells, Santa Clara Valley, California, Karen Marie Locke

Master's Theses

Medium sand samples from well cores taken in the Santa Clara Valley, California, were studied to determine their composition and, if possible, their provenance. Sand samples were taken from various depths from five wells distributed over the western and central parts of the valley. The oldest of these samples is known to date to about 800 ka.

Thin sections of sand samples were point counted to determine quartz, feldspar, and lithic percentages. The samples are very lithic, with some quartz and very little feldspar. Common lithic grains include argillite and graywacke. Less common are metavolcanics, serpentinite, and chert or metachert. …

For All Time: An Examination Of Romantic Love Through Curse Tablets, Alicia Deadrick

Master's Theses

This thesis analyzes the Greco-Roman amatory defixiones, or curse tablets, and binding spells from the fourth century BCE to the fourth century CE in order to investigate the existence of romantic love in the Mediterranean Basin. Binding spells provide a unique opportunity for cultural analysis, for they were popular with all levels of society, both genders and all sexualities. Three categories of amatory spells prevalent in ancient society (agoge, separation, and philia) undergo examination to establish romantic love as a sentiment separate from eros and philia and in opposition of the currently prevailing relationship theory of …

Synthesis Of Hybrid Inositol Glycan Analogues, Smita Fulzele

Master's Theses

Inositol glycans (IGs) are small oligosaccharides exhibiting insulin-like metabolic activities in insulin-sensitive cells. The signal transduction pathways activated by IGs in these cells are still under study, but it is known that there is cross talk between the IG-signaling pathway and the insulin-signaling pathway downstream of the insulin receptor. Therefore, IGs may have potential for use in the treatment of type II diabetes mellitus. However, natural IGs are heterogeneous and difficult to isolate. Hence, synthetic IGs and their analogues have been chemically synthesized and evaluated for insulin-mimetic properties by various research groups. Unfortunately, the most biologically active IG analogues are …