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  • 1. Keener, Christopher Design and Dynamic Characterization of the OSU Rotor 67 Blisk for Future Damping and Mistuning Studies at Design Speed

    Master of Science, The Ohio State University, 2021, Mechanical Engineering

    To facilitate experimentation in the field of gas turbine disk dynamics, a new integrally bladed disk, or blisk, was designed and manufactured for use at The Ohio State University (OSU) Gas Turbine Laboratory. The axisymmetric disk portion of the equipment and the blades are manufactured as a single unit in blisks. This new blisk is referred to hereafter as the OSU Rotor 67 Blisk. The OSU Rotor 67 Blisk was designed with traditional airworthy gas turbine rotating hardware standards in mind, although it is not meant for flight. The standards put forth by the Federal Aviation Administration (FAA) are loosely followed to produce a blisk that is similar to hardware that could be used in general aviation. The guidelines put forth by the FAA for rotor design are found in 14 CFR Part 33, and provide requirements for safety aspects of rotor design. The airfoil design and mounting configuration were strongly influenced by the existing NASA Rotor 67 airfoil and disk geometry, with modifications to convert it from a bladed disk to a blisk. Additionally, damper grooves were added to the design to facilitate a variety of damping experiments. After the OSU Rotor 67 Blisk was machined, balanced, and inspected, it was received at OSU, where it was subsequently tested on a non-rotating bench setup to characterize its properties. A roving modal hammer was used along with a calibrated capacitance probe for dynamics measurements. The data generated through the dynamics experiments provided clarity on the natural frequencies and the mistuning of the blisk. These data will be used to design future experiments at the OSU Gas Turbine Laboratory where the blisk will be rotated at different operating speeds and excited by air-jets to evaluate different damping technologies.

    Committee: Kiran D'Souza (Advisor); Michael Dunn (Advisor); Randall Mathison (Committee Member) Subjects: Mechanical Engineering
  • 2. Qian, Yu A Pianist's Guide to Lili Boulanger's Theme et Variations

    Doctor of Musical Arts, The Ohio State University, 2024, Music

    Lili Boulanger (1893–1918), best known as the first female composer to win the Prix de Rome in 1913, died at age twenty-four from chronic illnesses. She composed several significant choral works, but only a few of her piano works have survived. This research has a central focus on Lili Boulanger's piano work, Morceau pour piano: Theme et Variations, and constitutes a guide consisting of a historical and biographical overview of the composer, a comprehensive analysis of the compositional styles used in the Variations, and a detailed performance guide based on a copy of the holograph manuscript. This study describes Lili Boulanger's life through the two contrasting personalities that coexist within her and are also reflected in her music. Preparatory repertoire for approaching the Variations is also suggested. An original organ transcription of the Variations by the author will be introduced. The premise of this study is to provide a full-sided guide of the Variations to assist future performers and instructors in making good decisions regarding the style and interpretation of Lili Boulanger's music. Besides addressing pianists' and instructors' needs for the work in a detailed manner, this study also calls attention to the need for scholars to translate and publish more biographies, diaries, or correspondence to further assist with further studies on Lili Boulanger. This year marks 130 years since Lili Boulanger's birth. It is a special year to revive her music, to demonstrate its worthiness for audiences and publication, and to bring her spirit back.

    Committee: Caroline Hong (Advisor); Arved Ashby (Committee Member); Kenneth Williams (Committee Member) Subjects: Music
  • 3. Mitchell, Aaron A Conductor's Guide to Ariel Ramirez's Misa Criolla

    DMA, University of Cincinnati, 2009, College-Conservatory of Music : Conducting, Choral Emphasis

    Although Misa Criolla has been a popular work since the first recording was issued in 1964, until recently there has been little written about the work itself, or its composer, in part because of the unique and localized folk elements that constitute its compositional framework. Composer and pianist Ariel Ramirez spent much of his life studying and promoting the folk traditions of his homeland in Argentina. Once he composed and recorded Misa Criolla, following right on the heels of the second Vatican Council with a newly authorized translation of the mass into Spanish, the work quickly gave him an international presence. While widely admired, Misa Criolla is sometimes viewed with a degree of skepticism by conductors in North America because of a lack of available information related to the traditional elements in the music, the creole instruments used in its scoring, challenges with language and rhythm, and questions about the viability of the available printed score. This conductor's guide will seek to demystify the work, focusing on practical issues that conductors face in preparing and presenting Misa Criolla. After establishing a background on the composer and his most popular composition, this guide will examine the traditional dance rhythms and song forms that create a structural backbone for each movement, providing examples from regional folk traditions. Primary areas addressed will also include a discussion and comparison of existing editions, problems associated with existing scores, instrumental parts, and the role of improvisation, as well as a detailed examination of conducting and rehearsal concerns and a comprehensive IPA transcription of the text. The aim of this document is to aid conductors in their efforts to present informed and successful performances of Misa Criolla.

    Committee: Earl Rivers DMA (Committee Chair); Elmer Thomas DMA (Committee Member); Terence Milligan DMA (Committee Member) Subjects: Music; Music Education
  • 4. Farley, Nathanial Split-Mouth Comparison of Accuracy for Computer-Generated Versus Conventional Surgical Guides

    Master of Science, The Ohio State University, 2011, Dentistry

    Recent clinical studies have shown that implant placement is highly predictable with computer generated guides. However, reliability of these guides compared to conventional guides has not been tested clinically. This study aimed to compare the accuracy of reproducing planned implant positions between computer generated and conventional surgical guides using a split-mouth design. A total of 9 patients received 2 implants each, in symmetrical locations. All implants were planned virtually using a software program and information from CT scans taken with scan appliances. Patients were randomly selected for CAD/CAM guided implant placement on their right or left side. Conventional guides were used on the contralateral side. Patients received post-operative CBCT scans. Planned and actual implant positions were compared using three dimensional analyses capable of measuring volume overlap as well as differences in angles, coronal and apical positions. Results were compared using a Mixed Model Repeated Measures ANOVA and were further analyzed using a Bartlett's test for unequal variance (alpha = 0.05). Implants placed with CAD/CAM and conventional surgical guides had volume overlaps between planned and actual positions of 69.7% ± 6.8% and 48 ± 16.2%, respectively. This measurement was a statistically significant difference (p < 0.05). Coronal horizontal differences also showed significance (p < 0.05) with CAD/CAM measuring 0.55 mm ± 0.24 mm and conventionally guided implants 1.22 mm ± 0.62 mm. Apical horizontal distance significantly (p < 0.05) showed CAD/CAM to be more accurate than conventional guides (0.93 mm ± 0.62 mm and 2.03 mm ± 0.95 mm, respectively). Other measurements made did not show statistical significance. Implants placed using CAD/CAM surgical guides provided more accuracy in a lateral direction than conventional guides. In addition, CAD/CAM guides were more consistent in their deviation from the planned placements than conventional guides. Further research (open full item for complete abstract)

    Committee: Nancy Clelland DMD, MS (Advisor); Edwin McGlumphy DDS, MS (Committee Chair); Purnima Kumar DDS, MS (Committee Member) Subjects: Dental Care; Dentistry
  • 5. Parris, Tyler INTERNING AT CONVERGYS CORPORATION: TECHNICAL EDITING IN A TECHNICAL DOCUMENTATION TEAM

    Master of Technical and Scientific Communication, Miami University, 2004, Technical and Scientific Communication

    This report contains a detailed exploration of my internship at Convergys Corporation, where I worked as a technical editor in the technical documentation (tech docs) team of the User Performance Support (UPS) group from June - October, 2002. In Chapter 1, I explain the history and organizational dynamics at Convergys and detail the role of the UPS group. In Chapter 2, I describe my projects and contributions to the tech docs team, and I introduce my core project, which was the creation of a style guide for the tech docs team. In Chapter 3, I detail how I used the Anderson Problem-Solving model to identify the problem that resulted in the style guide and to arrive at a suitable solution. In Chapter 4, I analyze this application of the problem-solving model, and I conclude by explaining how the MTSC program equipped me for work at Convergys and beyond.

    Committee: Katherine Durack (Advisor) Subjects:
  • 6. Paul, Jacques The effect of interface geometry on dividing and combining flow losses in right-angled tee junctions /

    Master of Science, The Ohio State University, 2005, Graduate School

    Committee: Not Provided (Other) Subjects:
  • 7. Ulus, Aydin Optimization of Vertical Axis Wind Turbine Systems to Recover Vehicle Induced Highway Winds

    Master of Science in Engineering, Youngstown State University, 2024, Department of Mechanical, Industrial and Manufacturing Engineering

    This research investigates the optimization of vertical axis wind turbine (VAWT) systems to harvest energy from vehicle-induced highway winds. The primary objective is to enhance the efficiency of small-scale VAWTs mounted on the side of highways, enabling the generation of electrical energy or clean hydrogen production. Computational fluid dynamics (CFD) modeling was employed to systematically optimize the turbine design and to develop wind guides that further increase the efficiency. The study found that an elliptical VAWT design demonstrated a 4.4% higher power coefficient compared to a Savonius VAWT. Introducing a single flat or curved guide between the turbine and the road increased the power output by 145.33%. Further refinements, including the use of three guides with optimized angles and radii, culminated in a remarkable 393.16% improvement over the initial non-guided-guided configuration. In the non-guided-guided scenario, simulating the VAWT's exposure to the wake flow induced by a bus traveling at 32 m/s, the CFD analysis predicted an energy output of 30.41 Nm. However, when the three guide vane configuration was employed, the energy output exhibited a substantial increase, reaching 100.41 Nm under the same bus speed conditions. The comparative analysis between the Non-guided-guided and three-guide vane setups for the bus wake simulations revealed a remarkable 230% enhancement in energy capture when the guide vanes were incorporated. This significant performance improvement highlights the favorable impact of the optimized guide vane arrangement on the aerodynamic behavior of the VAWT, facilitating more effective extraction of energy from the wake flows generated by larger vehicles such as buses. The results showcase the significant potential of vehicle-induced highway winds as a viable source of renewable energy. The optimized VAWT system, incorporating multiple flow guides, demonstrates the ability to effectively harness this untapped resourc (open full item for complete abstract)

    Committee: Stefan Moldovan PhD (Advisor); Hazel Marie PhD (Committee Member); Eric Haake MSE (Committee Member) Subjects: Alternative Energy; Energy; Engineering; Mechanical Engineering; Sustainability
  • 8. Ensley, Chelsea Listening to Appalachian Voices in the Writing Classroom

    PhD, University of Cincinnati, 2024, Arts and Sciences: English

    In Listening to Appalachian Voices in the Writing Classroom, I argue that the cultivation of meaningful student-teacher relationships between Appalachian students and composition teachers is pivotal to the development of meaningful learning and literacy practices, as well as the creation of a culturally valuable academic and literacy identity. My dissertation builds on the work of composition pedagogy scholarship, Appalachian studies, and relational-cultural theory (RCT) to generate awareness concerning the student-teacher relationship and the impact this relationship has on Appalachian students' learning and writing processes. By collecting data via one-on-one interviews with select Appalachian students from a rural university in western North Carolina, I showcase how my participants understand themselves as writers, students, and Appalachians. By using Carol Gilligan's listening guide methodology, I analyze each participant's word choices, expressions, and stories. Throughout my analysis, I call attention to the various cultural values participants use to guide their experiences in the writing classroom. In particular, by analyzing the voices of pride and individualism, I am able to showcase how some Appalachian students are working with their cultural values to navigate their college experience and create a bridge between their newfound academic identity and their Appalachian identity. Along with bringing attention to how my student-participants rely on their Appalachian knowledge and values in the writing classroom, I also explore the RCT concept of growth-fostering connection, arguing that a relationship between Appalachian students and their writing teacher—characterized by connection, compassion, and mutuality—can lead Appalachian students to an awareness and appreciation of their cultural expressions and practices. That is, I show how a growth-fostering relationship in the composition classroom can empower Appalachian students and encourage t (open full item for complete abstract)

    Committee: Laura Micciche Ph.D. (Committee Chair); Christopher Carter Ph.D. (Committee Member); Samantha Necamp Ph.D. (Committee Member); Sara Webb-Sunderhaus Ph.D. (Committee Member); Miriam Raider-Roth Ed.D. (Committee Member) Subjects: Composition
  • 9. Subasic, Noah The Effects of Chemistry and Particle Size on Erosion of Deposits in Gas Turbine Cooling Circuits

    Master of Science, The Ohio State University, 2024, Aerospace Engineering

    The role of quartz in gas turbine hot section deposition was investigated by varying both its size and percent concentration in Air Force Research Lab test dust (AFRL-02). The size distributions of quartz tested were 0 – 3 μm, 0 – 10 μm (baseline), and 10 – 20 μm while percent concentration ranged from 0% to 100%. The experiments replicated a gas turbine effusion cooling circuit with a flow temperature of 894K and plate surface temperature of 1144K. Aerosolized AFRL-02 dust was delivered to the test article, and capture efficiency, hole capture efficiency, blockage per gram, normalized deposit height, and effective area were recorded. A quartz size distribution of 0 – 3 μm showed the greatest deposition while 10 – 20 μm consistently deposited the least. Varying percent concentration of quartz had less obvious trends. While at a size distribution of 10 – 20 μm, increasing quartz concentration decreased deposition in all four assessment parameters. For a size distribution of 0 – 3 μm, increasing quartz concentration originally decreased deposition until greatly increasing it past a concentration of 68%. Quartz has been identified as a predominantly erosive mineral to deposits, but results suggest the size distribution contributes to deposition at a rate greater than or equal to percent concentration. The following study elucidates the effects of both size and concentration of quartz in a heterogenous mineral blend.

    Committee: Jeffrey Bons (Advisor); Randall Mathison (Committee Member) Subjects: Aerospace Engineering
  • 10. Chen, Vikki Tracing the Traditions and Incongruities: A Theoretical Analysis and Performance Guide of Shostakovich's Concerto for Piano, Trumpet and Strings, Op. 35

    DMA, University of Cincinnati, 2023, College-Conservatory of Music: Piano

    Dmitri Shostakovich's Concerto for Piano, Trumpet and Strings, Op. 35 (1933) is a brilliant, lively work written during a politically unstable and increasingly repressive time in Russia. Shostakovich quotes Haydn and Beethoven, uses a variety of topics and styles in the manner of Mozart's opera buffa, and creates a sonata-concerto form that is simultaneously traditional yet ambiguous in its delineations. The myriad of styles, alterations of form, and tonal language present difficulties in analyzing and conceptualizing the work using only one current theory of analysis. Thus, in this document, I will present a two-point theoretical analysis of the concerto using Hepokoski and Darcy's Sonata Theory and aspects of Topic Theory to show how the piece builds from traditions of form and style. Then, I will present the incongruities of styles, topics, and form to elucidate multiple interpretations through the perspective of humor, irony, satire, and parody. This document synthesizes current theoretical knowledge to present individual, research-based, interpretative options for performers of the work.

    Committee: David Carson Berry Ph.D. (Committee Chair); Andy Villemez (Committee Member); Christopher Segall Ph.D. (Committee Member) Subjects: Music
  • 11. Kwon, Dasom A Performance Guide to Six Selected Pieces from H. Leslie Adams' Twenty-Six Etudes for Solo Piano

    Doctor of Musical Arts, The Ohio State University, 2023, Music

    Harrison Leslie Adams is an African American composer from Cleveland, Ohio who received his Ph.D. degree at the Ohio State University in 1973. He integrates European Classical and American musical elements within his diverse compositions. Notably recognized for his art songs and the opera Blake, a narrative centered on African American slave experiences prior to the Civil War, Adams adeptly incorporates syncopated rhythms and gospel influences, underscoring his distinctive musical synthesis. While Adams' vocal compositions have garnered much interest, his instrumental and piano works remain less explored in concert settings. To explore one of the underrepresented composers and his music, this study directs its focus to six meticulously chosen pieces drawn from Adams' collection of Twenty-Six Etudes, specifically Nos. 1, 3, 8, 11, 13, and 14 from Part II. This research entails highlights of his biography of H. Leslie Adams, an exploration of his characteristic compositional approach, and an in-depth analysis with practical performance insights for the chosen six etudes among his Twenty-Six Etudes. Targeting pianists, students, and educators, the study aims to illuminate Adams' lesser-known piano compositions. By examining Adams' six etudes, this endeavor seeks to enhance understanding and appreciation for his etudes, contributing to the piano repertoire and elevating recognition for an artist whose piano works warrant scholarly and performance attention.

    Committee: Caroline Hong (Advisor); Graeme M. Boone (Committee Member); Anna Gawboy (Committee Member) Subjects: Music
  • 12. Spens, Alexander Exploration of Active Flow Control to Enable a Variable Area Turbine

    Doctor of Philosophy, The Ohio State University, 2023, Aero/Astro Engineering

    The feasibility of an active flow control enabled variable area turbine was explored. Pressurized air was ejected from the nozzle guide vanes to reduce the effective choke area, and mass flow rate through, the turbine inlet. A set of experimental and computational studies were conducted with varying actuator types and parameters to determine their effectiveness and develop models of the flow physics. Preliminary results from a simple quasi-1D converging-diverging nozzle, with an injection flow slot upstream of the throat, showed a 2.2:1 ratio between throttled mass flow rate and injected mass flow rate at a constant nozzle pressure ratio. The penetration of the injection flow and corresponding reduction in the primary flow streamtube were successfully visualized using a shadowgraph technique. Building on this success, a representative single passage nozzle guide vane transonic flowpath was constructed to demonstrate feasibility beyond the quasi-1D converging-diverging nozzle. Both secondary slot blowing from the vane pressure surface and vane suction surface just upstream of the passage throat again successfully reduced primary flow. In addition, fluidic vortex generators were used on the adjacent suction surface to reduce total pressure loss along the midspan and further throttle the primary flow. Computational fluid dynamics simulations were used to explore the effects of a variety of parameters on the flow blockage and actuator effectiveness. Simplified models were developed to describe the relationships of various factors impacting flow blockage, turning angle, and total pressure loss. Finally, the active flow control systems were simulated at engine relevant pressures and temperatures and found to have only a minimal drop in total pressure recovery and effectiveness, which could be predicted by the simplified blockage model.

    Committee: Jeffrey Bons (Advisor); Datta Gaitonde (Committee Member); Randall Mathison (Committee Member) Subjects: Aerospace Engineering
  • 13. Wang, Chenyu A Performer's Perspective: Rachmaninoff's Piano Sonata No. 1 in D Minor, Op. 28

    Doctor of Musical Arts, The Ohio State University, 2023, Music

    Sergei Rachmaninoff was considered one of the last successors of Romanticism, and his compositional output, particularly his symphonic and piano works, featured his success as a well-known conductor and virtuosic pianist. Rachmaninoff's music remained in the romantic style, such as using the sonata form, which was favored by Romantic composers in 19th century. Rachmaninoff composed two piano sonatas, Op. 28 and Op. 36, in his life. Compared to the second piano sonata in B-flat Major, Op. 36, the first piano sonata in D Minor, Op. 28, was relatively ignored in the piano repertoire since its premiere. This author decided to explore the first sonata by studying and performing it as part of his doctoral recital. This document will discuss the reasons why the first sonata, unlike the second piano sonata, is infrequently performed by the pianists. Also, Rachmaninoff was famous for composing piano works with an expanded hand range. The writer will explain the performance style of the first sonata and approaches that could address some potential technical problems, particularly for pianists who have relatively small hands. This document consists of five chapters. Chapter one presents a historical overview of Rachmaninoff and the conception of his first piano sonata. Chapter two discusses the compositional details of the first piano sonata, including the unusual design of sonata form and musical material that features Rachmaninoff's general music style. Chapter three focuses on a performance approach to Piano Sonata No. 1 and discusses possible issues regarding technique that pianists may encounter. Based on this writer's experience of performing this work, some performance suggestions, particularly for pianists with small hands, will be provided in this chapter. Chapter four compares recordings of by Vadym Kholodenko, Alexandre Kantorow, and Santiago Rodriguez. The conclusion is stated in chapter five. The primary sources used for this document are Rachmaninoff's pers (open full item for complete abstract)

    Committee: Caroline Hong (Committee Member); Steven Glaser (Advisor); Kenneth Williams (Committee Member) Subjects: Music
  • 14. Chamberlain, Ryan From Diderot to Software Bot: The Evolution of Encyclopedias in Historical Study

    Doctor of Philosophy, Case Western Reserve University, 2023, History

    This dissertation examines the development of encyclopedic authority in historical study from Diderot to software bot. This dissertation focuses on the evolution of encyclopedic authority from Greek scholar to Diderot, and to software bot. It draws upon a wealth of centuries-old publications in digital archives, records of the National Endowment for the Humanities (NEH), original interviews from influential historians, assessment guides of the American Historical Association (AHA), and previously unpublished memos from the AHA Research Division to analyze the observations of historians about encyclopedias, the changing nature of their professional assessments over time, and the emergence of the geographical based encyclopedia of history as an infrastructure for spatial thinking in the digital age. From one perspective, the encyclopedia format has showed remarkable adaptation to changing technologies, as evidenced by the proliferation of digital encyclopedias, which in 2021 were consulted by millions of knowledge seekers daily through their computers, phones, and other smart devices. From another perspective, historical scholars have considered the encyclopedia format as something as an outlier since the creation of the AHA, as evidenced by the history of their professional assessments, and have generally resisted encyclopedia writing and editing as a qualification for faculty tenure. iv I argue that lack of consensus within the academic community over what constitutes quality in the digital age has stifled the production of vetted, scholarly work, in urban encyclopedias to the detriment of the profession, given that Wikipedia is one of the most visited websites in the world and generates popular authority through billions of viewers annually. Public authority has increasingly forced urban encyclopedias to compete with the volume and speed of Wikipedia content updates, which requires no original thought from its contributo (open full item for complete abstract)

    Committee: John Grabowski (Advisor) Subjects: History
  • 15. Yeager, Brandon Accuracy Analysis With Surgical Guides When Different 3D Printing Technologies Are Used

    Master of Science, The Ohio State University, 2022, Dentistry

    Objectives: The purpose of this in vitro study was to evaluate the fabrication and seating accuracy of surgical guides fabricated by using 3 different types of 3D printing technologies. Methods: Twenty-one identical polyurethane models were divided into 3 groups and used to plan implants and design surgical guides using digital software. Twenty-one surgical guides were fabricated using 3 different 3D printing technologies: digital light processing (DLP), stereolithography (SLA), and continuous liquid interface printing (CLIP)(n=7). A digital scan of the printed surgical guide was made with an intraoral scanner and the scan file was compared to the CAD file to analyze the fabrication accuracy. Accuracy was evaluated on the internal cameo seating surface as well as the overall external surface of the surgical guide. Then, the triple scan protocol was used to evaluate the seating accuracy of the guides on their respective models. A metrology grade superimposition software was used to calculate accuracy. Results: Overall there was a statistically significant interaction between the 3D printer and the accuracy of the guide compared to the CAD file (p<.001). The trueness of the surgical guides was significantly different for the internal cameo surface but not for the overall external surface of the surgical guide. SLA had the lowest mean RMS deviation (59.04μm) for internal surface of the guide while CLIP had the highest mean RMS (117.14μm). CLIP had the lowest mean RMS (82.25μm) for the overall external surface of the guide while DLP had the highest mean RMS (91.00μm). SLA and DLP seating accuracy was not significantly different (p=1.000) but, both had significantly lower mean RMS values than CLIP (p=0.003, p=0.014). All 3D printing technologies had low variability amongst measured deviations and therefore were similarly precise. Conclusions: Overall, the 3D printers tested produced precise surgical guides. However, 3D printing technology effected (open full item for complete abstract)

    Committee: Damian Lee (Advisor); Lisa Lang (Committee Member); Fengyuan Zheng (Committee Member); Burak Yilmaz (Advisor) Subjects: Dentistry
  • 16. Tatman, Andrew Developing Performance Analysis Skills: A Model for an Undergraduate Class

    Master of Music (MM), Ohio University, 2022, Music Theory (Fine Arts)

    Historically, the study of performance analysis has focused on valuing theoretical analysis as a benefit for thoughtful musical interpretation. Some musicians have praised its benefits while others have not been convinced. This thesis supports the belief that theoretical analysis can impact a thoughtful musical interpretation. Theorists such as Wallace Berry and Carl Schachter have shown analysis does help and some have promoted the benefit of both, but limited research has been devoted to teaching these concepts to the next generation of musicians. This thesis presents a model for an undergraduate class introducing performance analysis and giving students concrete ways to implement while studying their own repertoire from the Baroque and Classical eras. Traditional techniques from their tonal music theory classes will be utilized along with concepts found in Schenkerian analysis. Each chapter will represent a different unit in a 15-week course where students will begin examining small phrase structures, eventually analyzing rondo and sonata forms. The course will conclude with a final lecture recital where students will analyze a piece, create a musical interpretation, and perform in front of the class.

    Committee: Ciro Scotto (Advisor); Anne Marie Scotto (Committee Member) Subjects: Music; Pedagogy; Performing Arts
  • 17. Huddle, Joseph Prototyping Guide for Engineering Students at The Ohio State University

    Master of Science, The Ohio State University, 2022, Mechanical Engineering

    This thesis document is the first step in creating an online prototyping guide (and the available resources) for engineering students in the college of Mechanical and Aerospace Engineering at the Ohio State University. First, the current undergraduate curriculum is analyzed for areas of improvement regarding prototyping education. As of Spring 2022, the curriculum focuses on the engineering design process and prototyping during the first-year Introduction to Engineering courses, and the Fundamentals of Design for Manufacturing course during the first semester of student's second year. Between the second year and the senior capstone sequence, there is little prototyping education and experience incorporated into the curriculum. By senior year, students often forget the various prototyping categories, fabrication methods, and the resources available to them. The prototyping guide outlined in this document aims to bridge the gap between first/second-year information and the design projects students work on during senior capstone. Next, current prototyping categories (drawings, concept models, functional prototypes, scale models, proof-of-principle prototypes, and full prototypes), and fabrication methods (drawing/sketching, paper product mockups, 3-D modeling, 3-D printing, laser cutting, and machining) are examined and compiled for adaptation to an online format available to students. Lastly, the groundwork for a prototyping guide is laid out with the hopes of adapting it to an online format. The guide consists of the information previously mentioned, as well as a selection process to help students determine a prototype category, fabrication method, and the resources offered to them.

    Committee: Carlos Castro (Committee Member); Annie Abell (Advisor) Subjects: Education; Engineering; Mechanical Engineering
  • 18. Smith, Jeremy An Annotated Guide and Interactive Database for Selected Student-Level Solo Trombone Literature

    Doctor of Musical Arts, The Ohio State University, 2022, Music

    Throughout the United States, various state music education associations have created a list of trombone solos for their solo and ensemble contests. While the lists are accessible, more detailed knowledge about each solo is limited. Items such as range, rhythm, tempo, or duration are unknown without looking at a copy of the sheet music. In addition, the difficulty level for many solos fluctuates from state list to state list. The purpose of this document is to develop a rubric system that classifies solos into a unified category for states and organizations, along with providing ways to bring new solos to their respective lists. Forty-five solos were selected for a process of examination with the developed rubric system. Additionally, this document also demonstrates how the interactive database, www.trombonesolos.com, allows visitors to learn about these selected solos, compares these solos to other solos of similar difficulty, and presents a platform to add more solos for future reference and contest performance.

    Committee: Sterling Tanner (Advisor); James Akins (Committee Member); Bruce Henniss (Committee Member); Shawn Wallace (Committee Member) Subjects: Music; Music Education
  • 19. Rennu, Samantha Dynamic Mission Planning for Unmanned Aerial Vehicles

    Master of Science in Electrical Engineering, University of Dayton, 2020, Electrical and Computer Engineering

    The purpose of this thesis is to produce a closed-loop feedback mission planning tool that allows for the operator to control multiple Unmanned Aerial Vehicles (UAV) within a mission. Different styles of UAVs and mission planners that are available on the market were evaluated and selected for their cost, size, ability to customize, and fit for mission work. It was determined that commercially available mission planners do not provide the level of automation required, such as allowing for different algorithms for assigning UAV tasks and for planning UAV flight paths within a mission. Comparisons were made between different algorithms for path planning and tasking. From these comparisons, a bio-inspired machine-learning algorithm, Genetic Algorithm (GA), was chosen for assigning tasks to UAVs and Dubins path was chosen for modeling UAV flight paths within the mission simulation. Since market mission planners didn't allow for control of multiple UAVs, or wouldn't allow for the operator to add algorithms to increase usability and automation of the program, it was decided to create a Graphic User Interface (GUI) that would allow the operator to customize UAVs and the mission scenario. A test mission scenario was then designed, which included 9 Points of Interest (POI), 1 to 3 Targets of Interest (TOI), 3 to 5 UAVs, as well as simulation options that modeled failure of a task or a UAV crash. Operator feedback was incorporated into the simulation by allowing the operator to determine a course of action if a failure occurred, such as reprogramming the other UAVs to complete the tasks left by the crashed UAV or reassessing a failed task. Overall mission times decreased for reprogramming the UAVs versus running a separate mission to complete any tasks left by the crashed UAV. Additional code was added to the GA and Dubins path to increase speed without decreasing solution fitness.

    Committee: Amy Neidhard-Doll Ph.D. (Advisor); Eric Balster Ph.D. (Committee Member); Bradley Ratliff Ph.D. (Committee Member) Subjects: Electrical Engineering
  • 20. Stoltz, Shelby Social-Emotional Learning in Secondary Education: Teaching Ohio's New Social-Emotional Learning Standards in High School Language Arts Curriculum

    Bachelor of Science in Education, Ashland University, 2021, Teacher Education

    Many contemporary researchers and educators agree on the need to implement social-emotional learning (SEL) in modern public education to teach necessary life skills not usually covered in academic instruction. Typically SEL instruction has focused on primary-level students, but research shows that middle and high school students also benefit from SEL instruction in a very meaningful way during the critical period of development these students experience during adolescence. The field of English Language Arts in itself is a venue for straightforward SEL instruction. Many English Language Arts teachers are already implementing SEL into their curriculum, whether intentionally or unintentionally. The very nature of the field of literature and the study of it embodies SEL as readers vicariously observe and empathize with the experiences of fictional characters. This characteristic of the field creates a unique pathway to SEL instruction through the use of literature that allows for straightforward intercurricular implementation, requiring few changes to the existing curriculum. Included in this document is a curriculum guide for high school English Language Arts teachers to implement SEL into their existing academic curriculum, based on the Ohio Department of Education's new K-12 SEL Standards.

    Committee: Hilary Donatini Dr. (Advisor); Terri Jewett Dr. (Advisor) Subjects: Education; Educational Theory; Language Arts