Matching Items (12,680)
Filtering by
- Creators: ASU Library. Music Library
Description
Day-to-day decision makers on agricultural operations play a key role in maintaining both a sustainable and food secure agricultural society. This population, also defined as Principal Producers by the 2017 USDA Agricultural Census Report, has witnessed a significant decline in recent years, raising many questions surrounding why farmers are retiring faster than they can be replaced. To look closely at this phenomenon, this study focuses on the State of Ohio to hear first-hand from producers what they need to be successful through a series of semi-structured interviews. This study also maps recent changes in variables that define this issue from 2007-2017 using QGIS and USDA Agricultural Census data. The findings from this study show the recent decline of mid-sized agricultural operations and provide evidence linking declining rates of principal producer populations with specific features consistent with industrial agriculture. These findings are specific to the State of Ohio, but also raise much larger questions about which populations are experiencing more rapid rates of farm exit, and what implications these trends have for food security on a broader scale.
ContributorsMoore, Phillip (Author) / Chhetri, Nalini (Contributor) / Leonard, Bryan (Contributor) / Shrestha, Milan (Contributor)
Created2020
Description
An investigation is undertaken of a prototype building-integrated solar photovoltaic-powered thermal storage system and air conditioning unit. The study verifies previous thermodynamic and economic conclusions and provides a more thorough analysis. A parameterized model was created for optimization of the system under various conditions. The model was used to evaluate energy and cost savings to determine viability of the system in several circumstances, such as a residence in Phoenix with typical cooling demand. The proposed design involves a modified chest freezer as a thermal storage tank with coils acting as the evaporator for the refrigeration cycle. Surrounding the coils, the tank contains small containers of water for high-density energy storage submerged in a low freezing-point solution of propylene glycol. The cooling power of excess photovoltaic and off-peak grid power that is generated by the air conditioning compressor is stored in the thermal storage tank by freezing the pure water. It is extracted by pumping the glycol across the ice containers and into an air handler to cool the building. Featured results of the modeling include the determination of an optimized system for a super-peak rate plan, grid-connected Phoenix house that has a 4-ton cooling load and requires a corresponding new air conditioner at 4.5 kW of power draw. Optimized for the highest payback over a ten year period, the system should consist of a thermal storage tank containing 454 liters (120 gallons) of water, a 3-ton rated air conditioning unit, requiring 2.7 kW, which is smaller than conventionally needed, and no solar photovoltaic array. The monthly summer savings would be $45.The upfront cost would be $5489, compared to a conventional system upfront cost of $5400, for a payback period of 0.33 years. Over ten years, this system will provide $2600 of savings. To optimize the system for the highest savings over a twenty year period, a thermal storage tank containing 272 liters (72 gallons) of water, a 40-m2 photovoltaic array with 15% efficiency, and a 3.5-ton, 3.1-kW rated air conditioning unit should be installed for an upfront cost of $19,900. This would provide monthly summer savings of $225 and 1062 kWh grid electricity, with a payback period of only 11 years and a total cost savings of $12,300 over twenty years. In comparison, a system with the same size photovoltaic array but without storage would result in a payback period of 16 years. Results are also determined for other cooling requirements and installation sizes, such that the viability of this type of system in different conditions can be discussed. The use of this model for determining the optimized system configuration given different constraints is also described.
ContributorsMagerman, Beth Francine (Author) / Phelan, Patrick (Thesis director) / Goodnick, Stephen (Committee member) / Chhetri, Nalini (Committee member) / Barrett, The Honors College (Contributor) / School of Sustainability (Contributor) / Mechanical and Aerospace Engineering Program (Contributor)
Created2013-05
Description
Research in fulfillment of the degree of Doctor of Musical Arts in performance has included CD recording projects, commissions of new pieces, as well as papers on existing pieces that push the performer beyond traditional playing by incorporating extended techniques, multimedia, technology, or movement. This study attempts to synthesize these ideas by commissioning a new work for clarinet and electronics that can be performed alone, combined with movement, or with an interactive video accompaniment. Primary work for this project has been the audio recording, music video, and live dance performance of the new work, entitled Agents of Espionage, which can be viewed at: http://www.youtube.com/watch?v=SAZ20kCb0Qg or http://www.youtube.com/watch?v=94- C7wWTeKs&context;=C4063fdcADvjVQa1PpcFPv1fBtuWcqgV638q_BRacH7 XWR-xy1B7A=. The entirety of the project, including creating the music, video, audio recordings, and dance was completed on a limited budget of under $500USD, using all student performers and creators. The accompanying written document outlines the various steps for completing each portion of the project, interviews with the artists involved, including Zachary Bramble, composer; Jason Mills, videographer; and Jacquelyn Achord, choreographer; and an analysis of the music from the performer's perspective. This paper should convey ideas about how future undertakings of this sort are possible. This work has been greatly inspired by Martin Fröst and his collaboration with Fredrik Hogberg on the piece The Invisible Duet.
ContributorsViliunas, Brian Bodo (Author) / Spring, Robert (Thesis advisor) / Hill, Gary (Committee member) / Marshall, Kimberly (Committee member) / Schuring, Martin (Committee member) / Rogers, Rodney (Committee member) / Gardner, Joshua (Committee member) / Arizona State University (Publisher)
Created2012
Description
Technological advancements in computers and audio software and hardware devices in the twenty-first century have led to the expansion of possibilities for music composition, including works for acoustic instruments and live electronics. Electroacoustic composition is rapidly and continually evolving, and much that has been written about compositional techniques for percussion and live electronics is becoming outdated. Live electronics include performer-triggered events, audio processing, electronic responses to various inputs, and electronic decision-making during live performances. These techniques can be employed in a variety of ways. This project sheds light on how modern composers of different musical and cultural backgrounds reimagine the use of percussion through the lens of new technologies.
Through the commission, examination, and recording of three new works for solo percussion and live electronics, the author seeks to further explore and highlight electroacoustic compositional techniques for solo percussion. A specific compositional element to be included in these commissioned works is the activation or manipulation of the acoustic properties of percussion instruments by electronic components. The three artists who contributed works are percussionist-composer Jeremy Muller, composer and multimedia artist Jordan Munson, and composer, sound artist, and performer Garth Paine. The creativity demonstrated in their previous works made them desirable candidates for this project. Each of them approached their composition in different ways. In Hysteresis, Muller utilizes a loudspeaker underneath a vibraphone to expand the sound palette of the instrument with microtonal electronic sounds that match the instrument’s timbre. In Where Light Escapes You, Jordan Munson layers various electronic sounds with the vibraphone to create a slowly evolving texture that also incorporates a bass drum and the buzzing of snare drums. In Resonant Textures, Paine spatializes vibraphone, cymbal, and electronic sounds to create a meditative and immersive listening experience. Ultimately, each of the three composers implemented distinctive compositional and performance tools to create new works that provide a glimpse into the future of percussion music.
Through the commission, examination, and recording of three new works for solo percussion and live electronics, the author seeks to further explore and highlight electroacoustic compositional techniques for solo percussion. A specific compositional element to be included in these commissioned works is the activation or manipulation of the acoustic properties of percussion instruments by electronic components. The three artists who contributed works are percussionist-composer Jeremy Muller, composer and multimedia artist Jordan Munson, and composer, sound artist, and performer Garth Paine. The creativity demonstrated in their previous works made them desirable candidates for this project. Each of them approached their composition in different ways. In Hysteresis, Muller utilizes a loudspeaker underneath a vibraphone to expand the sound palette of the instrument with microtonal electronic sounds that match the instrument’s timbre. In Where Light Escapes You, Jordan Munson layers various electronic sounds with the vibraphone to create a slowly evolving texture that also incorporates a bass drum and the buzzing of snare drums. In Resonant Textures, Paine spatializes vibraphone, cymbal, and electronic sounds to create a meditative and immersive listening experience. Ultimately, each of the three composers implemented distinctive compositional and performance tools to create new works that provide a glimpse into the future of percussion music.
ContributorsWier, Alexander Carl (Author) / Smith, Jeffrey (Thesis advisor) / Feisst, Sabine (Committee member) / Schuring, Martin (Committee member) / Arizona State University (Publisher)
Created2015
Description
Composers and performers alike are pushing the limits of expression with an ever-expanding sonic palette. There has also been a great expansion of saxophone repertoire over the past few decades. This has lead to an increasing number of advanced pieces incorporating saxophone extended techniques. As younger saxophonists discover these compositions, they too become inspired to implement these techniques in their own playing. There is a need for broader selections of introductory to intermediate compositions with saxophone extended techniques. It is the goal of this project to expand this repertoire for pre-college and early-college saxophonists. These target-level saxophonists are those who have already begun their studies in extended techniques. Three commissioned composers have contributed pieces for this target level of saxophonist with the purpose of bridging the gap between first attempts of extended techniques and the advanced pieces that already exist. Saxophonists who have the standard techniques to perform compositions such as Sonata for E-flat Alto Saxophone and Piano by Paul Creston will be suited to approach these compositions. In addition to the compositions, the author has composed short warm up exercises, utilizing selected extended techniques. A professional recording of the resulting compositions and exercises are also included. The enclosed document will provide a performer's analysis to help instructors of potential performers navigate the extended techniques and provide insight on other challenging aspects of the compositions. It is not the intention of the following document to teach the individual techniques.
ContributorsCharbonneau, Christopher Michael (Author) / Creviston, Christopher (Thesis advisor) / Feisst, Sabine (Thesis advisor) / Schuring, Martin (Committee member) / Campbell, Andrew (Committee member) / Arizona State University (Publisher)
Created2015
Description
Small-scale fisheries are globally ubiquitous, employing more than 99% of the world’s fishers and providing over half of the world’s seafood. However, small-scale fisheries face many management challenges including declining catches, inadequate resources and infrastructure, and overcapacity. Baja California Sur, Mexico (BCS) is a region with diverse small-scale fisheries; these fisheries are intense, poorly regulated, and overlap with foraging hot spots of endangered sea turtles. In partnership with researchers, fishers, managers, and practitioners from Mexico and the United States, I documented bycatch rates of loggerhead turtles at BCS that represent the highest known megafauna bycatch rates worldwide. Concurrently, I conducted a literature review that determined gear modifications were generally more successful than other commonly used fisheries management strategies for mitigating bycatch of vulnerable megafauna including seabirds, marine mammals, and sea turtles. I then applied these results by partnering with researchers, local fishers, and Mexico’s federal fisheries science agency to develop and test two gear modifications (i.e. buoyless and illuminated nets) in operating net fisheries at BCS as potential solutions to reduce bycatch of endangered sea turtles, improve fisheries sustainability, and maintain fisher livelihoods. I found that buoyless nets significantly reduced mean turtle bycatch rates by 68% while maintaining target catch rates and composition. By contrast, illuminated nets did not significantly reduce turtle bycatch rates across day-night periods, although they reduced mean turtle bycatch rates by 50% at night. Illuminated nets, however, significantly reduced mean rates of total bycatch biomass by 34% across day-night periods while maintaining target fish catch and market value. I conclude with a policy analysis of the unilateral identification of Mexico by the U.S. State Department under section 610 of the Magnusson-Stevens Fishery Conservation and Management Act for failure to manage bycatch of loggerhead turtles at BCS. Taken together, the gear modifications developed and tested here represent promising bycatch mitigation solutions with strong potential for commercial adoption, but fleet-wide conversion to more selective and turtle-friendly gear (e.g. hook and line and/or traps) at BCS, coupled with coordinated international conservation action, is ultimately needed to eliminate sea turtle bycatch and further improve fisheries sustainability.
ContributorsSenko, Jesse (Author) / Smith, Andrew (Thesis advisor) / Boggess, May (Committee member) / Chhetri, Nalini (Committee member) / Jenkins, Lekelia (Committee member) / Minteer, Ben (Committee member) / Arizona State University (Publisher)
Created2015
Description
This project includes a recording and performance guide for three newly commissioned pieces for the clarinet. The first piece, shimmer, was written by Grant Jahn and is for B-flat clarinet and electronics. The second piece, Paragon, is for B-flat clarinet and piano and was composed by Dr. Theresa Martin. The third and final piece, Duality in the Eye of a Bovine, was written by Kurt Mehlenbacher and is for B-flat clarinet, bass clarinet, and piano. In addition to the performance guide, this document also includes background information and program notes for the compositions, as well as composer biographical information, a list of other works featuring the clarinet by each composer, and transcripts of composer and performer interviews. This document is accompanied by a recording of the three pieces.
ContributorsPoupard, Caitlin Marie (Author) / Spring, Robert (Thesis advisor) / Gardner, Joshua (Thesis advisor) / Hill, Gary (Committee member) / Oldani, Robert (Committee member) / Schuring, Martin (Committee member) / Arizona State University (Publisher)
Created2016
Description
As clarinet compositions created by Taiwanese composers have not been widely discussed and published in academia, this research paper examines three unaccompanied clarinet works by three Taiwanese composers: Ballade by Hsiao-Wen Tseng, Chin Thoughts III by Ling-Huei Tsai, and Pointe de Flame by Chia-Lin Pan, all commissioned by the author in 2007. This research also includes a compact disc with recordings of these works, aiming to document the creativity of Taiwanese composers. This research paper examines these three commissioned works by analyzing their overall musical styles, notations, formal structures, rhythmical and melodic materials, unconventional clarinet techniques as well as the influence of Chinese musical elements. The analysis reveals the distinctive characteristic of each piece. Moreover, the author provides composers' insights and performance guides to help interested readers practice these pieces. To further understand how the composers create these pieces by drawing upon different life experiences, the paper also includes information about their backgrounds, program notes, lists of compositions, and music examples for reference. The author found that collaborating with these composers helped to establish a closer composer-performer relationship in interpreting the music. It is hoped that this compact disc recording will help make Taiwanese composers' clarinet works more accessible to a wider audience. Moreover, this research paper hopes to generate more interest in performing and appreciating music composed by Taiwanese composers.
ContributorsChuang, Yenting (Author) / Spring, Robert (Thesis advisor) / Schuring, Martin (Committee member) / Campbell, Andrew (Committee member) / Jiang, Danwen (Committee member) / Hackbarth, Glenn (Committee member) / Arizona State University (Publisher)
Created2011
Description
Without scientific expertise, society may make catastrophically poor choices when faced with problems such as climate change. However, scientists who engage society with normative questions face tension between advocacy and the social norms of science that call for objectivity and neutrality. Policy established in 2011 by the Intergovernmental Panel on Climate Change (IPCC) required their communication to be objective and neutral and this research comprised a qualitative analysis of IPCC reports to consider how much of their communication is strictly factual (Objective), and value-free (Neutral), and to consider how their communication had changed from 1990 to 2013. Further research comprised a qualitative analysis of structured interviews with scientists and non-scientists who were professionally engaged in climate science communication, to consider practitioner views on advocacy. The literature and the structured interviews revealed a conflicting range of definitions for advocacy versus objectivity and neutrality. The practitioners that were interviewed struggled to separate objective and neutral science from attempts to persuade, and the IPCC reports contained a substantial amount of communication that was not strictly factual and value-free. This research found that science communication often blurred the distinction between facts and values, imbuing the subjective with the authority and credibility of science, and thereby damaging the foundation for scientific credibility. This research proposes a strict definition for factual and value-free as a means to separate science from advocacy, to better protect the credibility of science, and better prepare scientists to negotiate contentious science-based policy issues. The normative dimension of sustainability will likely entangle scientists in advocacy or the appearance of it, and this research may be generalizable to sustainability.
ContributorsMcClintock, Scott (Author) / Van Der Leeuw, Sander (Thesis advisor) / Klinsky, Sonja (Committee member) / Chhetri, Nalini (Committee member) / Hannah, Mark (Committee member) / Arizona State University (Publisher)
Created2015
Description
Department chairs or school directors, as the bridge between administration and faculty, and closely associated with the teaching and learning at the heart of the institution, hold very important roles in the departments or schools they oversee. Many chairs and department administrators in music schools and departments are selected from the faculty of the department and asked to serve as the chief administrator. They assume a set of duties that, to that point, have been beyond the purview of their academic training and professional experience--particularly for those with training in the performance disciplines. While usually successful as teachers, these new chairs and department heads face a difficult transition into administrative work because the skills required for an effective administrator are very different from those necessary to be an effective teacher.
The purpose of this research was to ascertain the knowledge and skills that would be most practical for individuals aspiring to administrative or leadership roles in schools or departments of music, and to design a doctoral cognate that would supply that knowledge. The author reviewed the available research into administrative training for individuals pursuing administrative work in schools and departments of music. Interviews were then conducted with current or former music administrators from across the United States, inquiring about their experiences as administrators, any administrative training they received, and the types of things they wished they had known when first working in an administrative capacity. The author used this information to make recommendations concerning the creation of a doctoral cognate in administration for graduate students preparing to become music faculty so that they are equipped to undertake administrative responsibilities.
The resulting cognate area consists of four courses: a course in finance, budgeting, and development; a course on organizational structure and behavior; a course on management and leadership theory; and a practicum or independent study in administration, in which students spend time observing and shadowing their department administrator(s) to apply the principles learned in the previous three courses.
The purpose of this research was to ascertain the knowledge and skills that would be most practical for individuals aspiring to administrative or leadership roles in schools or departments of music, and to design a doctoral cognate that would supply that knowledge. The author reviewed the available research into administrative training for individuals pursuing administrative work in schools and departments of music. Interviews were then conducted with current or former music administrators from across the United States, inquiring about their experiences as administrators, any administrative training they received, and the types of things they wished they had known when first working in an administrative capacity. The author used this information to make recommendations concerning the creation of a doctoral cognate in administration for graduate students preparing to become music faculty so that they are equipped to undertake administrative responsibilities.
The resulting cognate area consists of four courses: a course in finance, budgeting, and development; a course on organizational structure and behavior; a course on management and leadership theory; and a practicum or independent study in administration, in which students spend time observing and shadowing their department administrator(s) to apply the principles learned in the previous three courses.
ContributorsMcIvor, Emily (Author) / Spring, Robert (Thesis advisor) / Gardner, Joshua (Thesis advisor) / Bailey, Wayne (Committee member) / Schuring, Martin (Committee member) / Solis, Theodore (Committee member) / Arizona State University (Publisher)
Created2015