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Clustering Streaming Music Via The Temporal Similarity Of Timbre, Jacob Merrell, Bryan S. Morse, Dan A. Ventura Jan 2007

Clustering Streaming Music Via The Temporal Similarity Of Timbre, Jacob Merrell, Bryan S. Morse, Dan A. Ventura

Faculty Publications

We consider the problem of measuring the similarity of streaming music content and present a method for modeling, on the fly, the temporal progression of a song’s timbre. Using a minimum distance classification scheme, we give an approach to classifying streaming music sources and present performance results for auto-associative song identification and for content-based clustering of streaming music. We discuss possible extensions to the approach and possible uses for such a system.

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Creating Mathematics Performance Assessments That Address Multiple Student Levels, Damon L. Bahr Jan 2007

Creating Mathematics Performance Assessments That Address Multiple Student Levels, Damon L. Bahr

Faculty Publications

In recent times there has been considerable commentary regarding the need to enhance mathematical assessment as evidenced by Numeracy, A Priority for All: Challenges for Australian Schools (2000). This emphasis on assessment is timely because although the mathematical reform movement has produced much-needed improvements in both curriculum and instruction, changes in assessment have not kept pace (Firestone & Schorr. 2004; Morgan, 1998). As Ridgeway (1998, p.2) states, "As an issue of policy, the implementation of standards-based curricula should always be accompanied by the implementation of standards-based assessment. In fact, incremental change in assessment systems will foster concurrent improvement in professional …

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Aeronautical Telemetry Using Multiple-Antenna Transmitters, Michael A. Jensen, Michael D. Rice, Adam L. Anderson Jan 2007

Aeronautical Telemetry Using Multiple-Antenna Transmitters, Michael A. Jensen, Michael D. Rice, Adam L. Anderson

Faculty Publications

The placement of multiple antennas on an air vehicle is one possible practice for overcoming signal obstruction created by vehicle maneuvering during air-to-ground transmission. Unfortunately, for vehicle attitudes where more than one of these antennas has a clear path to the receiving station, this practice also leads to self-interference nulls, resulting in dramatic degradation in the average signal integrity. This paper discusses application of unitary space-time codes such as the Alamouti transmit diversity scheme and unitary differential space-time codes to overcome the self-interference effect observed in such systems. The mathematical foundations of these techniques within the context of this application …

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A Study For The Improvement Of The Sellback Program, David Clive, Daniel Harris, Megan Hopkins, Wade Whiting Jan 2007

A Study For The Improvement Of The Sellback Program, David Clive, Daniel Harris, Megan Hopkins, Wade Whiting

Student Works

Our marketing group conducted a research project for the BYU Bookstore to help the company develop a strategy to improve the Textbook Sellback program. After meeting with Tom Hirtzel, the manager of textbook operations for the BYU Bookstore, we determined the basic objectives of the project to be: To understand students' motivation in textbook sellback, To make recommendations of how to increase the number of textbooks sold back to the BYU Bookstore, To gather marketing information on the benefits of having remote locations to sell back textbooks around BYU campus. Marketing research team is comprised of David Clive, Daniel Harris, …

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The Jesus Family Tomb: The Discovery, The Investigation, And The Evidence That Could Change History. By Simcha Jacobovici And Charles Pellegrino, Kent P. Jackson Jan 2007

The Jesus Family Tomb: The Discovery, The Investigation, And The Evidence That Could Change History. By Simcha Jacobovici And Charles Pellegrino, Kent P. Jackson

BYU Studies

Simcha Jacobovici and Charles Pellegrino. The Jesus Family Tomb: The Discovery, the Investigation, and the Evidence That Could Change History. New York: HarperSanFrancisco, 2007

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Now I Know My Aбв’S: A Comparison Of Inductive And Deductive Methods Of Teaching On The Acquisition Of The Cyrillic Alphabet, Jennifer Bown, Thomas Bown, Courtenay Christiansen, Shalise Dudley, Shea Gibbons, Janine Green Jan 2007

Now I Know My Aбв’S: A Comparison Of Inductive And Deductive Methods Of Teaching On The Acquisition Of The Cyrillic Alphabet, Jennifer Bown, Thomas Bown, Courtenay Christiansen, Shalise Dudley, Shea Gibbons, Janine Green

Russian Language Journal

The study was designed to compare the effects of inductive verse deductive teaching methods on acquisition of the Russian alphabet. Inductive instruction refers to methods in which learners are first exposed to examples and then asked to extrapolate a rule from the example, whereas deductive instruction refers to methods in which learners are presented with a rule from the start. Eighty participants were randomly divided into two instructional groups, one receiving deductive instruction and the other receiving inductive instruction. Participants were given a pretest on Russian words and given instruction on the Cyrillic alphabet based on an inductive or a …

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"The Great World Of The Spirits Of The Dead": Death, The Great War, And The 1918 Influenza Pandemic As Context For Doctrine And Covenants 138, George S. Tate Jan 2007

"The Great World Of The Spirits Of The Dead": Death, The Great War, And The 1918 Influenza Pandemic As Context For Doctrine And Covenants 138, George S. Tate

BYU Studies

At the dedication of BYU’s new Joseph F. Smith Building on September 20, 2005, President Gordon B. Hinckley said of President Joseph F. Smith, “It is my opinion that no man, save the Prophet Joseph only, has had a greater and better understanding of the origin and history of the Church and of its doctrines—not only concerning this life but also concerning the eternities.” Of the “Vision of the Redemption of the Dead,” which comprises Doctrine and Covenants 138, he said, “It is a document without parallel. . . . There is nothing quite like it in all of our …

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Contemporary Art, Science, Ecology, And A Critical Pedagogy Of Place, Mark Graham Jan 2007

Contemporary Art, Science, Ecology, And A Critical Pedagogy Of Place, Mark Graham

Faculty Publications

In contemporary life and education, the local is marginalized in favor of large-scale economies of consumption that are indifferent to ecological concerns. The consequences of neglecting local human and natural communities include a degraded habitat, loss of wilderness, alienation, rootlessness, and lack of connection to communities. Place-based education responds to this indifference to local ecological concerns by grounding student learning in the experiences of their own lives, communities, and regions. Critical place-based pedagogy broadens the scope of place-based learning by incorporating critical theory into the curriculum of the local. This article describes a critical pedagogy of place as a prelude …

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The Swiss And The Nazis: How The Alpine Republic Survived In The Shadow Of The Third Reich, Stephen P. Halbrook Jan 2007

The Swiss And The Nazis: How The Alpine Republic Survived In The Shadow Of The Third Reich, Stephen P. Halbrook

Swiss American Historical Society Review

While surrounded by the Axis powers in World War II, Switzerland remained democratic and, unlike most of Europe, never succumbed to the siren songs and threats of the Nazi goliath. This book tells the story with emphasis on two voices rarely heard. One voice is that of scores of Swiss who lived in those dark years, told through oral history. They mobilized to defend the country, labored on the farms, and helped refugees. The other voice is that of Nazi Intelligence, those who spied on the Swiss and planned subversion and invasion. Exhaustive documents from the German Military Archives reveals …

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Generating Ontologies Via Language Components And Ontology Reuse, Deryle W. Lonsdale, Yihong Ding, David W. Embley, Martin Hepp, Li Xu Jan 2007

Generating Ontologies Via Language Components And Ontology Reuse, Deryle W. Lonsdale, Yihong Ding, David W. Embley, Martin Hepp, Li Xu

Faculty Publications

Realizing the Semantic Web involves creating ontologies, a tedious and costly challenge. Reuse can reduce the cost of ontology engineering. Semantic Web ontologies can provide useful input for ontology reuse. However, the automated reuse of such ontologies remains underexplored. This paper presents a generic architecture for automated ontology reuse. With our implementation of this architecture, we show the practicality of automating ontology generation through ontology reuse. We experimented with a large generic ontology as a basis for automatically generating domain ontologies that fit the scope of sample natural-language web pages. The results were encouraging, resulting in five lessons pertinent to …

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Effects Of Moisture On Ignition Behavior Of Moist California Chaparral And Utah Leaves, Thomas H. Fletcher, Brent M. Pickett, Steven G. Smith, Gregory S. Spittle, Megan M. Woodhouse, Elizabeth Haake, David R. Weise Jan 2007

Effects Of Moisture On Ignition Behavior Of Moist California Chaparral And Utah Leaves, Thomas H. Fletcher, Brent M. Pickett, Steven G. Smith, Gregory S. Spittle, Megan M. Woodhouse, Elizabeth Haake, David R. Weise

Faculty Publications

Individual cuttings from eight plant species native to California chaparral or Utah were burned in a well-controlled, well-instrumented facility. Gas temperatures above a flat-flame burner were controlled at 987 C and 10 mol% O2, resulting in a heat flux at the leaf surface varying from 80–140 kW/m2. High moisture leaves were observed to burst due to the rapid escape of vapor from the leaf interior. Bubbles in or on the leaf surface were observed for leaves with moderate moisture contents. A large number of leaf temperature measurements were made, along with measurements of the ignition time …

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Empowering Or Compelling Reluctant Participators Using Audience Response Systems, Charles R. Graham, Tonya R. Tripp, Larry Seawright, George L. Joeckel Iii Jan 2007

Empowering Or Compelling Reluctant Participators Using Audience Response Systems, Charles R. Graham, Tonya R. Tripp, Larry Seawright, George L. Joeckel Iii

Faculty Publications

This article investigates the impact of an audience response system (ARS) on student engagement in undergraduate university courses. A survey was administered to students in a dozen courses piloting the ARS system. On 13 out of 14 measures the majority of students thought the system was helpful. Overall, students were more positive about the use of the ARS in courses that used the tool for formative feedback (empowering) rather than for grading or attendance purposes (compelling). The authors discuss the positive impact of the ARS on the engagement of ‘reluctant participators’ or students who reported that they are least likely …

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Structuring Emperical Methods For Reuse And Efficiency In Product Development Processes, Marshall Edwin Bare Dec 2006

Structuring Emperical Methods For Reuse And Efficiency In Product Development Processes, Marshall Edwin Bare

Theses and Dissertations

Product development requires that engineers have the ability to predict product performance. When product performance involves complex physics and natural phenomena, mathematical models are often insufficient to provide accurate predictions. Engineering companies compensate for this deficiency by testing prototypes to obtain empirical data that can be used in place of predictive models. The purpose of this work is to provide techniques and methods for efficient use of empirical methods in product development processes. Empirical methods involve the design and creation of prototype hardware and the testing of that hardware in controlled environments. Empirical methods represent a complete product development sub-cycle …

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The Piezoresistive Effect In Microflexures, Gary K. Johns Dec 2006

The Piezoresistive Effect In Microflexures, Gary K. Johns

Theses and Dissertations

The objective of this research is to present a new model for predicting the piezoresistive effect in microflexures experiencing bending stresses. A linear model describing piezoresistivity exists for members in pure tension and compression. Extensions of this model to more complex loading conditions do not match experimental results. An accurate model of piezoresistivity in complex loading conditions would expand the design possibilities of piezoresistive devices. A new model to predict piezoresistive effects in tension, compression, and more complex loading conditions is proposed. The focus of this research is to verify a unidirectional form of this proposed model for microflexures in …

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Screencrayons: Using Screen Captures For Annotation And Research, Trent Alan Taufer Dec 2006

Screencrayons: Using Screen Captures For Annotation And Research, Trent Alan Taufer

Theses and Dissertations

In a world full of digital information we should be able to easily collect, organize, annotate, and leverage information from many different sources. This should be easy to do and not interrupt our normal workflow. A system to support information collection and organization should be user-friendly and as unobtrusive as possible, while still allowing for flexible and intelligent annotation. It should also be able to leverage the inherent information content of a collection of annotated information. We present a system that will demonstrate how these ideas can come together to make information collection easier and more productive. The system facilitates …

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Statistical Methods For Kinetic Modeling Of Fischer Tropsch Synthesis On A Supported Iron Catalyst, Brian L. Critchfield Dec 2006

Statistical Methods For Kinetic Modeling Of Fischer Tropsch Synthesis On A Supported Iron Catalyst, Brian L. Critchfield

Theses and Dissertations

Fischer-Tropsch Synthesis (FTS) is a promising technology for the production of ultra-clean fuels and chemical feedstocks from biomass, coal, or natural gas. Iron catalysts are ideal for conversion of coal and biomass. However, precipitated iron catalysts used in slurry-bubble column reactors suffer from high attrition resulting in difficulty separating catalysts from product and increased slurry viscosity. Thus, development of an active and selective-supported iron catalyst to manage attrition is needed. This thesis focuses on the development of a supported iron catalyst and kinetic models of FTS on the catalyst using advanced statistical methods for experimental design and analysis. A high …

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Design Drawing In Instructional Design At Brigham Young University's Center For Instructional Design: A Case Study, S. Todd Stubbs Dec 2006

Design Drawing In Instructional Design At Brigham Young University's Center For Instructional Design: A Case Study, S. Todd Stubbs

Theses and Dissertations

The purpose of this study is to compare the use of design drawing in design fields such as architecture, engineering, and industrial design with its use in instructional design (ID). This study was conducted in three parts: first, a review of literature to understand the role and value design drawing plays in non-ID fields; second, a search for design drawing in the literature of ID; and third, observations of actual use of design drawing in ID in the field. For the first part, the literature of design studies was reviewed regarding design drawing. For the second part, the literature review …

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Banking Transactions And Controls Training For Deutsche Bank Operations Employees, Jodi Young Dec 2006

Banking Transactions And Controls Training For Deutsche Bank Operations Employees, Jodi Young

Theses and Dissertations

This report describes the development process of the Deutsche Bank Intro to Controls instructional training tool. This course utilizes a multi-faceted, blended approach, including web-based training, simulation, and instructor-led training components to teach complex banking operations. The report includes a literature review describing instructional theories, and strategies concerning the use of a blended approach in the training of complex systems and operations. The report also includes a description of the formative evaluation process and results. These results demonstrated a positive response to the content and instructional strategies employed in the training, as well as the need for future research to …

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A Dynamic Workflow Framework For Mass Customization Using Web Service And Autonomous Agent Technologies, Daniel J. Karpowitz Dec 2006

A Dynamic Workflow Framework For Mass Customization Using Web Service And Autonomous Agent Technologies, Daniel J. Karpowitz

Theses and Dissertations

Custom software development and maintenance is one of the key expenses associated with developing automated systems for mass customization. This paper presents a method for reducing the risk associated with this expense by developing a flexible environment for determining and executing dynamic workflow paths. Strategies for developing an autonomous agent-based framework and for identifying and creating web services for specific process tasks are presented. The proposed methods are outlined in two different case studies to illustrate the approach for both a generic process with complex workflow paths and a more specific sequential engineering process.

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Analysis Of Near-Infrared Phase Effects On Biometric Iris Data, Brady Roos Stevenson Dec 2006

Analysis Of Near-Infrared Phase Effects On Biometric Iris Data, Brady Roos Stevenson

Theses and Dissertations

The purpose of this research is to ascertain potential iris scan data variations from near infrared waves derived from fluorescent illumination. Prior studies of iris data variances from infrared wave interference of halogen, incandescent, and sunlight with iris cameras suggest that similar changes may exist under near infrared wavelengths from fluorescent light. The concern is that the fluorescent energy emission may interfere with the near infrared detection of an iris camera. An iris camera is used to measure human eye characteristics known as biometrics. If such infrared emission is statistically significant, then it can alter the validity of the iris …

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Life Data Analysis Of Repairable Systems: A Case Study On Brigham Young University Media Rooms, Stephen Oluaku Manortey Dec 2006

Life Data Analysis Of Repairable Systems: A Case Study On Brigham Young University Media Rooms, Stephen Oluaku Manortey

Theses and Dissertations

It is an undisputable fact that most systems, upon consistence usage are bound to fail in the performance of their intended functions at a point in time. When this occurs, various strategies are set in place to restore them back to a satisfactory performance. This may include replacing the failed component with a new one, swapping parts, resetting adjustable parts to mention but a few. Any such system is referred to as a repairable system. There is the need to study these systems and use statistical models to predict their failing time and be able to set modalities in place …

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Synthesis And Optical Properties Of Four Oligothiophene-Ruthenium Complexes And Synthesis Of A Bidentate Ligand For C-F Bond Activation, Joseph S. Bair Dec 2006

Synthesis And Optical Properties Of Four Oligothiophene-Ruthenium Complexes And Synthesis Of A Bidentate Ligand For C-F Bond Activation, Joseph S. Bair

Theses and Dissertations

Photovoltaic cells and fluorescence sensing are two important areas of research in chemistry. The combination of photon-activated electron donors with electron acceptors provides a strong platform for the study of optical devices. A series of four oligothiophene-ruthenium complexes has been synthesized. Variation in oligothiophene length and bipyridine substitution allowed comparison of these variables on electronic properties. The longer oligothiophenes display lower energy absorption and emission compared to the shorter ones. Aromatic conjugation appears more complete with para-, rather than meta-, substitution. Oligothiophenes and Ru(bpy)32+ are highly fluorescent individually, but fluorescence is quenched when connected. Bonds of carbon to fluorine are …

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Development Of Polymer Monoliths For The Analysis Of Peptides And Proteins, Binghe Gu Dec 2006

Development Of Polymer Monoliths For The Analysis Of Peptides And Proteins, Binghe Gu

Theses and Dissertations

Several novel polymer monoliths for the analysis of peptides and proteins were synthesized using polyethylene glycol diacrylate (PEGDA) as crosslinker. Photo-initiated copolymerization of polyethylene glycol methyl ether acrylate and PEGDA yielded an inert monolith that could be used for size exclusion liquid chromatography of peptides and proteins. This macroscopically uniform monolith did not shrink or swell in either water or tetrahydrofuran. More importantly, it was found to resist adsorption of both acidic and basic proteins in aqueous buffer without any organic solvent additives. A strong cation-exchange polymer monolith was synthesized by copolymerization of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and PEGDA. A ternary …

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Using Social Network Analysis To Investigate Potential Bias In Editorial Peer Review In Core Journals Of Comparative/International Education, Biao Cheng Dec 2006

Using Social Network Analysis To Investigate Potential Bias In Editorial Peer Review In Core Journals Of Comparative/International Education, Biao Cheng

Theses and Dissertations

This study explores potential bias in the editorial peer-review system within the context of the field of comparative and international education. Assuming the role as “Guardian of Science” and “social status judge” (Zuckerman & Merton, 1971), peer-review, the quality control system of science, directly affects the growth of science, scientists' academic career and their institutions. The very basic tenet of the peer review system is its assumed objectivity. Bias in editorial peer review process, however, is inevitable. The constitution of the blind peer review mechanism is itself a simply undeniable acknowledgement of that fact. Therefore, this study investigated potential peer-review …

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Phylogenetics Of North American Psoraleeae (Leguminosae): Rates And Dates In A Recent, Rapid Radiation, Ashley N. Egan Dec 2006

Phylogenetics Of North American Psoraleeae (Leguminosae): Rates And Dates In A Recent, Rapid Radiation, Ashley N. Egan

Theses and Dissertations

The scientific discipline of phylogenetics involves understanding the diversity of life in the context of history. Technological advances in molecular biology and computational power have created an exponential increase in the number and kind of phylogenetic studies, allowing exploration of all manner of questions concerning the evolutionary history of a group. This dissertation research is focused on phylogenetic theory and applying these methods to the plant tribe Psoraleeae (Leguminosae; Fabaceae) with an emphasis on North American (NAm) members. First, theory of phylogeny estimation is explored in a review chapter focusing on strengths and weaknesses of phylogenetic methodology. Second, methods are …

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Computationally Modeling The Effects Of Surface Roughness On Soft X-Ray Multilayer Reflectors, Jedediah Edward Jensen Johnson Dec 2006

Computationally Modeling The Effects Of Surface Roughness On Soft X-Ray Multilayer Reflectors, Jedediah Edward Jensen Johnson

Theses and Dissertations

Electromagnetic scattering from a rough two dimensional homogeneous scatterer has been computationally modeled. The scatterer is intended to simulate reflection from a two interface multilayer. The rough scatterer was created from Gaussian random points centered about an ideal interface. The points were connected with a third order spline interpolant which accounts for correlation between neighboring surface atoms. The scalar electric field integral equation (EFIE) and magnetic field integral equation (MFIE) were solved using the Nystrom method to obtain the reflected intensity as a function of observation angle. Verification of the accuracy of the code was obtained by means of comparison …

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Generating Paraphrases With Greater Variation Using Syntactic Phrases, Rebecca Diane Madsen Dec 2006

Generating Paraphrases With Greater Variation Using Syntactic Phrases, Rebecca Diane Madsen

Theses and Dissertations

Given a sentence, a paraphrase generation system produces a sentence that says the same thing but usually in a different way. The paraphrase generation problem can be formulated in the machine translation paradigm; instead of translation of English to a foreign language, the system translates an English sentence (for example) to another English sentence. Quirk et al. (2004) demonstrated this approach to generate almost 90% acceptable paraphrases. However, most of the sentences had little variation from the original input sentence. Leveraging syntactic information, this thesis project presents an approach that successfully generated more varied paraphrase sentences than the approach of …

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Recognizing, Digitizing, Advertising: Gnarp Efforts With Unique German Studies Materials, Richard Hacken Dec 2006

Recognizing, Digitizing, Advertising: Gnarp Efforts With Unique German Studies Materials, Richard Hacken

Faculty Publications

Presented in the Winter 2005-2006 issue of the Global Resources Newsletter, the German-North American Resources Partnership issue. GNARP's Digital Libraries Working Group (DLWG) is tooling up to act as a sounding board and clearinghouse for collaborative projects that provide access, and add value, to materials sought by scholars. The spectrum of the group's activities can be summed up in the three verbs: recognizing, digitizing, advertising.

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Development Of Methods For The Study Of Phosphoproteins, Zhaoyuan Chen Dec 2006

Development Of Methods For The Study Of Phosphoproteins, Zhaoyuan Chen

Theses and Dissertations

Characterization of phosphoproteins-including detection, identification of phosphoproteins and identification of phosphorylation sites-is mostly done with radiolabeling and proteomic techniques. Three main topics related to phosphoprotein characterization are included in this dissertation. First, large-scale characterization of the CHO (Chinese hamster ovary) cell phosphoproteome was done using two dimensional gel electrophoresis (2DE) separation, visualization of phosphoproteins by radiolabeling or a phosphoprotein specific dye, followed by MALDI-TOF identification. Because radiolabeling of phosphoproteins is very sensitive and straightforward to quantify, such analysis can give a clear picture of the relative phosphosphorylation of proteins present in a sample. But there are also limitations to this …

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The Relationship Between The Minimal Rank Of A Tree And The Rank-Spreads Of The Vertices And Edges, John Henry Sinkovic Dec 2006

The Relationship Between The Minimal Rank Of A Tree And The Rank-Spreads Of The Vertices And Edges, John Henry Sinkovic

Theses and Dissertations

Let F be a field, G = (V,E) be an undirected graph on n vertices, and let S(F,G) be the set of all symmetric n × n matrices whose nonzero off-diagonal entries occur in exactly the positions corresponding to the edges of G. Let mr(F,G)be the minimum rank over all matrices in S(F,G). We give a field independent proof of a well-known result that for a tree the sum of its path cover number and minimal rank is equal to the number of vertices in the tree. The rank-spread of a vertex v of G is the difference between the …

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