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Learning The Ropes: Cooperation In Chinese Authority Work, Maria Lau, Owen Tam, Patrick Lo Oct 2005

Learning The Ropes: Cooperation In Chinese Authority Work, Maria Lau, Owen Tam, Patrick Lo

Journal of East Asian Libraries

No abstract provided.

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Constructing Saigyo: Poetry, Biography, And Medieval Reception, Jack C. Stoneman Oct 2005

Constructing Saigyo: Poetry, Biography, And Medieval Reception, Jack C. Stoneman

Faculty Publications

The late Heian-period poet/monk Saigyō (西行1118-1190) has long been considered one of the most talented of Japan’s waka poets. His poetry and his legend have found their place in elite and popular culture, spanning social class as well as multiple fields of cultural production, such as poetry, travel literature, painting, woodblock prints, nō and kabuki, and Buddhist tales, to name a few. This study aims to present the reader with a critical analysis of Saigyō, his poetry, and his legend by answering several key questions. Who was the historical Saigyō that lived from 1118 to 1190? How did he become …

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Rate-Adaptive Runlength Limited Encoding For High-Speed Infrared Communication, James Cyril Funk Sep 2005

Rate-Adaptive Runlength Limited Encoding For High-Speed Infrared Communication, James Cyril Funk

Theses and Dissertations

My thesis will demonstrate that Rate Adaptive Runlength Limited encoding (RA-RLL) achieves high data rates with acceptable error rate over a wide range of signal distortion/attenuation, and background noise. RA-RLL has performance superior to other infrared modulation schemes in terms of bandwidth efficiency, duty cycle control, and synchronization frequency. Rate adaptive techniques allow for quick convergence of RA-RLL parameters to acceptable values. RA-RLL may be feasibly implemented on systems with non-ideal timing and digital synchronization.

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Polymer Microchips For Capillary Electrophoresis And Electric Field Gradient Focusing Of Biomolecules, Ryan Thomas Kelly Sep 2005

Polymer Microchips For Capillary Electrophoresis And Electric Field Gradient Focusing Of Biomolecules, Ryan Thomas Kelly

Theses and Dissertations

Polymeric materials have seen increasing use as microfluidic device substrates due to their low cost and the simplicity of templated fabrication procedures. I showed that poly(methyl methacrylate) (PMMA) microdevices could be enclosed in a boiling water bath, which allowed the seal to form more quickly than in conventional approaches, and enabled microchannels to remain hydrated throughout the bonding process. Microchip capillary electrophoresis (µ-CE) devices were fabricated using water-based enclosure, and a mixture of fluorescently labeled amino acids was separated in 30 s in these microchips. To create more robust capillary electrophoresis (CE) microdevices with improved separation performance, phase-changing sacrificial materials …

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Compliant Ortho-Planar Spring Behavior Under Complex Loads, Nathan Oliver Rasmussen Sep 2005

Compliant Ortho-Planar Spring Behavior Under Complex Loads, Nathan Oliver Rasmussen

Theses and Dissertations

This thesis presents research on the feasibility of applying compliant-ortho-planar springs (COPS) to rotational applications. The primary motivation of this research is the application of COPS to a continuously variable transmission (CVT). The design space limitations, loading conditions, stresses, stress concentrations, and limitations of current design tools, such as pseudo-rigid-body models (PRBM) for COPS, are discussed. A new 3D PRBM is presented along with a discussion on the possible applications of such to a rotating COPS. Stress stiffening and lateral stability are two major phenomena occurring in a rotating COPS. Both phenomena are a direct result of the inertial loads …

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Importance Resampling For Global Illumination, Justin F. Talbot Sep 2005

Importance Resampling For Global Illumination, Justin F. Talbot

Theses and Dissertations

This thesis develops a generalized form of Monte Carlo integration called Resampled Importance Sampling. It is based on the importance resampling sample generation technique. Resampled Importance Sampling can lead to significant variance reduction over standard Monte Carlo integration for common rendering problems. We show how to select the importance resampling parameters for near optimal variance reduction. We also combine RIS with stratification and with Multiple Importance Sampling for further variance reduction. We demonstrate the robustness of this technique on the direct lighting problem and achieve up to a 33% variance reduction over standard techniques. We also suggest using RIS as …

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On-Disk Sequence Cache (Odsc): Using Excess Disk Capacity To Increase Performance, Christopher Ryan Slade Sep 2005

On-Disk Sequence Cache (Odsc): Using Excess Disk Capacity To Increase Performance, Christopher Ryan Slade

Theses and Dissertations

We present an on-disk sequence cache (ODSC), which improves disk drive performance. An ODSC uses a separate disk partition to store disk data in the order that the operating system requests it. Storing data in this order reduces the amount of seeking that the disk drive must do. As a result, the average disk access time is reduced. Reducing the disk access time improves the performance of the system, especially when booting the operating system, loading applications, and when main memory is limited. Experiments show that our ODSC speeds up application loads by as much as 413%. Our ODSC also …

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Experimental Measurements Of Longitudinal Load Distributions On Friction Stir Weld Pin Tools, Aaron L. Stahl Sep 2005

Experimental Measurements Of Longitudinal Load Distributions On Friction Stir Weld Pin Tools, Aaron L. Stahl

Theses and Dissertations

The longitudinal forces generated from the Friction Stir Welding process are substantial. An understanding of these forces is critical to proper tool design. This study describes a technique to measure the longitudinal force distribution on a friction stir weld pin tool. Total longitudinal forces were recorded on a dynamometer while welding 6061 aluminum with non-threaded pins that varied in length and diameter. A model was developed that characterizes pin force as a function of pin length and diameter. Results suggest that force generally increases with pin length, while forces remain relatively constant with pin diameter. Unexpected force variation was found …

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Migrating Latinas And The Grief Process, Daiana Anahir Gonzalez Sep 2005

Migrating Latinas And The Grief Process, Daiana Anahir Gonzalez

Theses and Dissertations

This qualitative study examines the migratory experience of immigrant Latina married women. It looks at their experience from both an individual and a systemic perspective. It compares their experience to that of grief due to bereavement using Parkes' theory of the grief process. This research also presents findings as to the effects of migration on the marital system. Analysis of interview data provided by 12 Latin American women who resided in the United States ranging from 2 years to 10 years, allowed a comparison between the experience of these women and the grief process theory. The findings of the study …

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The Development Of A Small Scale Radio Astronomy Image Synthesis Array For Research In Radio Frequency Interference Mitigation, Jacob L. Campbell Sep 2005

The Development Of A Small Scale Radio Astronomy Image Synthesis Array For Research In Radio Frequency Interference Mitigation, Jacob L. Campbell

Theses and Dissertations

Radio astronomy synthesis imaging arrays are composed of many parabolic reflector antennas. These antennas are designed to be extremely sensitive to detect faint emissions from astronomical sources. Unfortunately, this also makes them susceptible to radio frequency interference (RFI) from man made sources such as orbiting satellites. The radio astronomy research group at Brigham Young University (BYU) is investigating methods to mitigate the effects of RFI in radio astronomy synthesis imaging. Though real-time RFI mitigation has been demonstrated for a large single dish telescope, for synthesis imaging arrays our prior work has consisted solely of algorithm development and computer simulations. To …

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Geologic Map Of The Golden Throne Quadrangle, Wayne And Garfield Counties, Utah, Daniel H. Martin Sep 2005

Geologic Map Of The Golden Throne Quadrangle, Wayne And Garfield Counties, Utah, Daniel H. Martin

Theses and Dissertations

The Golden Throne Quadrangle is located within Capitol Reef National Park, south-central Utah. Geologic mapping of this 1:24,000 scale 7.5 minute quadrangle began in 2003 as the National Parks Service desired to have geologic maps at this scale produced within the park. Stratigraphically, ten bedrock formations and ten Quaternary deposits are exposed within the Golden Throne Quadrangle. Geologic formations range in age from Permian to Jurassic. This map contains details not included on previous geologic maps including; the members of the Carmel, Chinle, and Moenkopi Formations. Additionally, the Page Sandstone is herein mapped as an independent unit. Structurally the Golden …

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Structure Elucidation Of Bioactive Compounds Isolated From Endophytes Of Alstonia Scholaris And Acmena Graveolens, Nicholas James Hundley Sep 2005

Structure Elucidation Of Bioactive Compounds Isolated From Endophytes Of Alstonia Scholaris And Acmena Graveolens, Nicholas James Hundley

Theses and Dissertations

Alstonia scholaris is an evergreen tree native to Southeast Asia and Australia. It is commonly used as a medicinal plant throughout these regions. In the present study, an endophyte of the genus Xylaria was isolated from a stem of Alstonia scholaris, its mycelia and exudate extracted, and the extract assayed for growth inhibition of HeLa cancer cells in vitro. Several known compounds were isolated and identified based on NMR, infrared, and mass spectral data. The compounds identified are 19,20-epoxycytochalasin C; 19,20epoxycytochalasin D; and xylobovide. Two other compounds, fusaric acid and dehydrofusaric acid, were discovered in an endophyte of the Hypocreales …

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An Acyl Radical Cascade Model For The Total Synthesis Of Lyconadin A, Seth W. Grant Sep 2005

An Acyl Radical Cascade Model For The Total Synthesis Of Lyconadin A, Seth W. Grant

Theses and Dissertations

Lyconadin A (1) is a structurally unique Lycopodium alkaloid with antitumor properties, isolated from the club moss Lycopodium complanatum. We are developing a synthetic route to 1 based on a novel 7-exo-trig/6-exo-trig acyl radical cascade cyclization. The synthesis of model acyl radical cascade precursor 23 will be presented. Key features of this synthesis include the suppression of competing elimination during the alkylation of a hindered phenethyl bromide and the use of a lactone as a precursor to a compound bearing two differentially protected primary alcohols. An account of our studies on the model acyl radical cascade cyclization (23 to 24 …

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Communicating, Organizing, And Sharing Family History: Problems, Solutions, And Philosophy, Marlo E. Schuldt Sep 2005

Communicating, Organizing, And Sharing Family History: Problems, Solutions, And Philosophy, Marlo E. Schuldt

BYU Family Historian

No abstract provided.

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Vol 4 Fall 2005 The Byu Family Historian, The Byu Family Historian Sep 2005

Vol 4 Fall 2005 The Byu Family Historian, The Byu Family Historian

BYU Family Historian

No abstract provided.

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Effect Of Melatonin And Dopamine In Site Specific Phosphorylation Of Phosducin In Intact Retina, Arinzechukwu Okere Nkemdirim Aug 2005

Effect Of Melatonin And Dopamine In Site Specific Phosphorylation Of Phosducin In Intact Retina, Arinzechukwu Okere Nkemdirim

Theses and Dissertations

Phosducin (Pdc) is a 28 kDa binding partner for the G protein beta gamma subunit dimer (G-beta-gamma) found abundantly in the photoreceptor cells of the retina and pineal gland. In the retina, light-dependent changes in cAMP and Ca2+ control the phosphorylation of Pdc at serine 73 and 54, respectively, which in turn controls the binding of Pdc to G protein beta gamma subunit dimer . G protein beta gamma subunit dimer binding has been proposed to facilitate light-driven transport of G protein beta gamma subunit dimer from the site of phototransduction in the outer segment of the photoreceptor cell to …

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Challenging Policies That Do Not Play Fair: A Credential Relevancy Framework Using Trust Negotiation Ontologies, Travis S. Leithead Aug 2005

Challenging Policies That Do Not Play Fair: A Credential Relevancy Framework Using Trust Negotiation Ontologies, Travis S. Leithead

Theses and Dissertations

This thesis challenges the assumption that policies will "play fair" within trust negotiation. Policies that do not "play fair" contain requirements for authentication that are misleading, irrelevant, and/or incorrect, based on the current transaction context. To detect these unfair policies, trust negotiation ontologies provide the context to determine the relevancy of a given credential set for a particular negotiation. We propose a credential relevancy framework for use in trust negotiation that utilizes ontologies to process the set of all available credentials C and produce a subset of credentials C' relevant to the context of a given negotiation. This credential relevancy …

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The Effect Of A Lingual Magnet On Fricative Production: An Acoustic Evaluation Of Placement And Adaptation, Andrea Lynn Weaver Aug 2005

The Effect Of A Lingual Magnet On Fricative Production: An Acoustic Evaluation Of Placement And Adaptation, Andrea Lynn Weaver

Theses and Dissertations

Much of speech kinematics research is conducted by attaching a device to the articulators. However very little research has been conducted to determine what influence these devices may have on the perceptual and acoustic characteristics of speech. This study examined the effect of placing a small magnet on the tongue of ten normal adult speakers while reading a sentence containing /s/ and "sh" in initial, medial and final position. Two different placements of 10 and 15 mm from the tip of the tongue were analyzed. Data were taken before magnet placement, immediately after magnet placement, after 5 minutes of conversation, …

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An Investigation Of Improving Wear Of 390 Die-Cast Aluminum Through Hardcoat Anodizing, Michael J. Whiting Aug 2005

An Investigation Of Improving Wear Of 390 Die-Cast Aluminum Through Hardcoat Anodizing, Michael J. Whiting

Theses and Dissertations

The objectives of this research were to investigate the wear that occurs on the surface of a Hardcoat anodized die-cast aluminum surface, which was sliding against a composite rubber belt. This research investigated known wear theories and the results for previous testing to understand the mechanisms that were likely occurring in this application. These theories indicated that the wear occurring may be reduced by changing the hardness of the materials involved. Archard's equation gave tangible evidence of this fact, but related to the base material and not a surface coating. It was hypothesized that Hardcoat anodizing would follow the theory …

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Generation Of Biomarkers From Anthrax Spores By Catalysis And Analytical Pyrolysis, Phillip R. Smith Aug 2005

Generation Of Biomarkers From Anthrax Spores By Catalysis And Analytical Pyrolysis, Phillip R. Smith

Theses and Dissertations

Anthrax spores, in weaponized form, are dangerous biological warfare agents. Handheld technology for the rapid detection of anthrax is greatly needed to improve national security. Methods to detect anthrax spores are diverse, with most taking at least an hour for positive identification. A viable option for rapid detection is analytical pyrolysis (AP), which produces chemicals containing taxonomical information (biomarkers). AP methods are reviewed and critically analyzed to show that reproducible detection of anthrax spores in a rapid manner (< 5 min) with a handheld device is not currently possible. A promising alternative to AP is the use of a catalyst to produce biomarkers from anthrax spores with improved selectivity and reproducibility. Catalytic materials having promise for this include platinum, nickel, and superacids. Experiments evaluating several of these materials are described. A biomarker mass spectral library was created, based on information available in the scientific literature, to facilitate analysis and identification of the biomarkers produced experimentally. The RAMFAC algorithm was used to deconvolute chromatographic peaks to produce clean mass spectra and match them against entries in the biomarker library. While the library is not complete, its use with the RAMFAC algorithm enabled detection of many important biomarkers in experiments involving catalytic breakdown of anthrax spores. Experimental results from preliminary tests of several catalysts are presented and discussed. Addition of catalysts in the form of platinum nanoclusters and superacids to bacterial spores in a commercial pyrolyzer effected an increase in the amount of biomarkers produced at mild conditions over traditional pyrolysis methods. Electroformed nickel mesh, on the other hand, demonstrated low catalytic activity for the production of biomarkers, likely due to poor contact of the spores with the mesh. Biomarkers similar to those published in the literature were observed, including dipicolinic acid, picolinic acid, propionamide, acetamide, diketopiperazines, fatty acids, furfuryl alcohol, and DNA bases. A statistically designed factorial study was used to determine the importance of temperature, spore loading, and nanocluster loading on the production of three important biomarkers. The relative importance of these variables differs for each of the three important biomarkers, suggesting they are produced by different reaction mechanisms.

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A Comparison Of Beijing And Taiwan Mandarin Tone Register: An Acoustic Analysis Of Three Native Speech Styles, Richard Christen Torgerson Aug 2005

A Comparison Of Beijing And Taiwan Mandarin Tone Register: An Acoustic Analysis Of Three Native Speech Styles, Richard Christen Torgerson

Theses and Dissertations

This study investigated the possibility of pitch and tone register differences between native speakers of Taiwan and Beijing Mandarin by means of an acoustic analysis of three speech styles. Speech styles included spontaneous interview, spontaneous descriptive, and controlled read sentential speech. Data analysis included long segments of recorded speech in order to discern any statistically significant pitch register differences between the two dialects. Speech style and read tones were also analyzed. Results suggest that tones produced in Taiwan Mandarin are in a slightly lower register than those produced in Beijing Mandarin. Surprisingly, speech style was not a significant predictor of …

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Refining And Expanding The Feature Stamping Process, Russell N. Emery Aug 2005

Refining And Expanding The Feature Stamping Process, Russell N. Emery

Theses and Dissertations

The accuracy of numerical models analyzing hydrologic and hydraulic processes depends largely on how well the input terrain data represents the earth's surface. Modelers obtain terrain data for a study area by performing surveys or by gathering historical survey data. If a modeler desires to create a predictive model to simulate the addition of man-made features such as channels, embankments and pits, he must modify the terrain data to include these features. Doing this by hand is tedious and time consuming. In 2001 Christensen implemented a tool in the Surface-water Modeling System (SMS) software package for integrating man-made geometric features …

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Approximate Thermal Modeling Of Radiofrequency Cardiac Ablation, Aaron Joseph Walter Aug 2005

Approximate Thermal Modeling Of Radiofrequency Cardiac Ablation, Aaron Joseph Walter

Theses and Dissertations

The ultimate objective of the research which led to this thesis is to increase the efficacy and safety of radiofrequency catheter ablation (RFCA) of cardiac tissue. The purpose of RFCA is to carefully heat selected locations in the heart. The resulting thermal injury creates lesions which prevent the generation or propagation of arrhythmias. The ability to predict the appropriate amount of energy required at any ablation site is essential to increasing the efficacy and safety of RFCA. The research documented in this thesis focuses on the development of an approximate thermal model of the time-dependent temperature profile within the myocardium …

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Characterization Of Recycled Concrete For Use As Pavement Base Material, Brandon J. Blankenagel Aug 2005

Characterization Of Recycled Concrete For Use As Pavement Base Material, Brandon J. Blankenagel

Theses and Dissertations

The use of recycled concrete material (RCM) as pavement base material is a promising but unproven technique for road rehabilitation and construction. A telephone survey conducted to investigate the state of the practice concerning RCM usage in Utah County revealed that RCM is infrequently used in this application due primarily to a lack of practical knowledge about the engineering properties of the material. Therefore, this research was aimed at evaluating the physical properties, strength parameters, and durability characteristics of both demolition and haul-back sources of RCM available in Utah County for use as pavement base material. The study included extensive …

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Dynamic Dead Variable Analysis, Micah S. Lewis Aug 2005

Dynamic Dead Variable Analysis, Micah S. Lewis

Theses and Dissertations

Dynamic dead variable analysis (DDVA) extends traditional static dead variable analysis (SDVA) in the context of model checking through the use of run-time information. The analysis is run multiple times during the course of model checking to create a more precise set of dead variables. The DDVA is evaluated based on the amount of memory used to complete model checking relative to SDVA while considering the extra overhead required to implement DDVA. On several models with a complex control flow graph, DDVA reduces the amount of memory needed by 38-88MB compared to SDVA with a cost of 36 bytes of …

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Using Box-Scores To Determine A Position's Contribution To Winning Basketball Games, Garritt L. Page Aug 2005

Using Box-Scores To Determine A Position's Contribution To Winning Basketball Games, Garritt L. Page

Theses and Dissertations

Basketball is a sport that has become increasingly popular world-wide. At the professional level it is a game in which each of the five positions has a specific responsibility that requires unique skills. It seems likely that it would be valuable for coaches to know which skills for each position are most conducive to winning. Knowing which skills to develop for each position could help coaches optimize each player's ability by customizing practice to contain drills that develop the most important skills for each position that would in turn improve the team's overall ability. Through the use of Bayesian hierarchical …

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How Individuals With Parkinson's Disease Modify Their Speech In A Repetition For Clarification, Lynn Marie Watkins Aug 2005

How Individuals With Parkinson's Disease Modify Their Speech In A Repetition For Clarification, Lynn Marie Watkins

Theses and Dissertations

The speech of individuals with Parkinson's disease (PD) is typically characterized as lacking in proper prosody because of its monopitch and monoloud quality, in addition to its reduced intensity. These qualities make it difficult for others to understand speakers with PD. The purpose of the current study was to identify what individuals with PD would do vocally, if anything at all, to improve speech production following a simulated misunderstanding of what they had just said. The study evaluated the performance of 5 individuals with PD and compared their performance to 5 age- and sex-matched controls. Specifically, measures of vocal intensity …

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Assessing Construction Management Higher Education Strategies: Increased Demand, Limited Resources, And Over-Enrollment, Kristen Lea Wynn Aug 2005

Assessing Construction Management Higher Education Strategies: Increased Demand, Limited Resources, And Over-Enrollment, Kristen Lea Wynn

Theses and Dissertations

The purpose of this research was to see how Baccalaureate Construction Management Programs accredited by the American Council for Construction Education (ACCE) were managing increased enrollments within their programs. The review of literature identified related topics, comparable studies, and relevant issues surrounding over-enrollment. Forty-nine of the 53 accredited ACCE programs responded to the survey instrument. Over two-thirds of the respondents stated that they were either approaching, or were at the limits of enrollment capacities. Most of the respondents listed limited enrollment, the use of adjunct faculty, and funding from industry as leading strategies for managing or obtaining resources. Because CM …

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An Acoustical Analysis Of Domes Coupled To Rooms, With Special Application To The Darussholah Mosque, In East Java, Indonesia, Sentagi Sesotya Utami Aug 2005

An Acoustical Analysis Of Domes Coupled To Rooms, With Special Application To The Darussholah Mosque, In East Java, Indonesia, Sentagi Sesotya Utami

Theses and Dissertations

Concave surfaces are often considered to be detrimental or precarious in room acoustics, especially because of the impact they have on the distribution of sound energy. However, it is often difficult to avoid such surfaces in buildings with specific architectural functions. A primary example of this involves mosques, which are sacred places of worship for Muslims. In keeping with the Islamic architectural style, most mosques incorporate a symbolic centralized domed ceiling as part of their room structures. These domes are open on the bottom and coupled to the acoustic spaces below. In many cases, the lower spaces may be idealized …

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Effects Of Pressure On Coal Pyrolysis At High Heating Rates And Char Combustion, Dong Zeng Aug 2005

Effects Of Pressure On Coal Pyrolysis At High Heating Rates And Char Combustion, Dong Zeng

Theses and Dissertations

Clean coal technologies are now becoming popular because of their high efficiencies and minimal environmental impact. Higher operating pressures have been applied to clean coal technologies. The effect of pressure on coal pyrolysis and char combustion has been extensively studied but still remains to be further explored. The objective of this project was to characterize high pressure, high heating rate coal pyrolysis and char combustion, with emphasis on improving coal/char high pressure combustion models. A flat-flame burner was used in a high pressure laminar flow facility to conduct high temperature, high heating rate pyrolysis and combustion experiments for four coals. …

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