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ContributorsWasbotten, Leia (Performer) / ASU Library. Music Library (Publisher)
Created2018-03-30
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Description
Libby Larsen is one of the most performed and acclaimed composers today. She is a spirited, compelling, and sensitive composer whose music enhances the poetry of America's most prominent authors. Notable among her works are song cycles for soprano based on the poetry of female writers, among them novelist and

Libby Larsen is one of the most performed and acclaimed composers today. She is a spirited, compelling, and sensitive composer whose music enhances the poetry of America's most prominent authors. Notable among her works are song cycles for soprano based on the poetry of female writers, among them novelist and poet Willa Cather (1873-1947). Larsen has produced two song cycles on works from Cather's substantial output of fiction: one based on Cather's short story, "Eric Hermannson's Soul," titled Margaret Songs: Three Songs from Willa Cather (1996); and later, My Antonia (2000), based on Cather's novel of the same title. In Margaret Songs, Cather's poetry and short stories--specifically the character of Margaret Elliot--combine with Larsen's unique compositional style to create a surprising collaboration. This study explores how Larsen in these songs delves into the emotional and psychological depths of Margaret's character, not fully formed by Cather. It is only through Larsen's music and Cather's poetry that Margaret's journey through self-discovery and love become fully realized. This song cycle is a glimpse through the eyes of two prominent female artists on the societal pressures placed upon Margaret's character, many of which still resonate with women in today's culture. This study examines the work Margaret Songs by discussing Willa Cather, her musical influences, and the conditions surrounding the writing of "Eric Hermannson's Soul." It looks also into Cather's influence on Libby Larsen and the commission leading to Margaret Songs. Finally, a description of the musical, dramatic, and textual content of the songs completes this interpretation of the interactions of Willa Cather, Libby Larsen, and the character of Margaret Elliot.
ContributorsMcLain, Christi Marie (Author) / FitzPatrick, Carole (Thesis advisor) / Dreyfoos, Dale (Committee member) / Holbrook, Amy (Committee member) / Ryan, Russell (Committee member) / Arizona State University (Publisher)
Created2013
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Description
Puerto Rico has produced many important composers who have contributed to the musical culture of the nation during the last 200 years. However, a considerable amount of their music has proven to be difficult to access and may contain numerous errors. This research project intends to contribute to the accessibility

Puerto Rico has produced many important composers who have contributed to the musical culture of the nation during the last 200 years. However, a considerable amount of their music has proven to be difficult to access and may contain numerous errors. This research project intends to contribute to the accessibility of such music and to encourage similar studies of Puerto Rican music. This study focuses on the music of Héctor Campos Parsi (1922-1998), one of the most prominent composers of the 20th century in Puerto Rico. After an overview of the historical background of music on the island and the biography of the composer, four works from his art song repertoire are given for detailed examination. A product of this study is the first corrected edition of his cycles Canciones de Cielo y Agua, Tres Poemas de Corretjer, Los Paréntesis, and the song Majestad Negra. These compositions date from 1947 to 1959, and reflect both the European and nationalistic writing styles of the composer during this time. Data for these corrections have been obtained from the composer's manuscripts, published and unpublished editions, and published recordings. The corrected scores are ready for publication and a compact disc of this repertoire, performed by soprano Melliangee Pérez and the author, has been recorded to bring to life these revisions. Despite the best intentions of the author, the various copyright issues have yet to be resolved. It is hoped that this document will provide the foundation for a resolution and that these important works will be available for public performance and study in the near future.
ContributorsRodríguez Morales, Luis F., 1980- (Author) / Campbell, Andrew (Thesis advisor) / Buck, Elizabeth (Committee member) / Holbrook, Amy (Committee member) / Kopta, Anne (Committee member) / Ryan, Russell (Committee member) / Arizona State University (Publisher)
Created2013
ContributorsYi, Joyce (Performer) / ASU Library. Music Library (Publisher)
Created2018-03-22
ContributorsCummiskey, Hannah (Performer) / Kim, Olga (Performer) / ASU Library. Music Library (Publisher)
Created2018-03-23
ContributorsGoglia, Adrienne (Performer)
Created2018-03-02
ContributorsEvans, Emily (Performer) / Sherrill, Amanda (Performer) / ASU Library. Music Library (Publisher)
Created2018-03-02
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Description
Thermodynamic development and balance of plant study is completed for a 30 MW solar thermochemical water splitting process that generates hydrogen gas and electric power. The generalized thermodynamic model includes 23 components and 45 states. Quasi-steady state simulations are completed for design point system sizing, annual performance analysis and sensitivity

Thermodynamic development and balance of plant study is completed for a 30 MW solar thermochemical water splitting process that generates hydrogen gas and electric power. The generalized thermodynamic model includes 23 components and 45 states. Quasi-steady state simulations are completed for design point system sizing, annual performance analysis and sensitivity analysis. Detailed consideration is given to water splitting reaction kinetics with governing equations generalized for use with any redox-active metal oxide material. Specific results for Ceria illustrate particle reduction in two solar receivers for target oxygen partial pressure of 10 Pa and particle temperature of 1773 K at a design point DNI of 900 W/m2. Sizes of the recuperator, steam generator and hydrogen separator are calculated at the design point DNI to achieve 100,000 kg of hydrogen production per day from the plant. The total system efficiency of 39.52% is comprised of 50.7% hydrogen fraction and 19.62% electrical fraction. Total plant capital costs and operating costs are estimated to equate a hydrogen production cost of $4.40 per kg for a 25-year plant life. Sensitivity analysis explores the effect of environmental parameters and design parameters on system performance and cost. Improving recuperator effectiveness from 0.7 to 0.8 is a high-value design modification resulting in a 12.1% decrease in hydrogen cost for a modest 2.0% increase in plant $2.85M. At the same time, system efficiency is relatively inelastic to recuperator effectiveness because 81% of excess heat is recovered from the system for electricity production 39 MWh/day and revenue is $0.04 per kWh. Increasing water inlet pressure up to 20 bar reduces the size and cost of super heaters but further pressure rises increasing pump at a rate that outweighs super heater cost savings.
ContributorsBudama, Vishnu Kumar (Author) / Johnson, Nathan (Thesis advisor) / Stechel, Ellen (Committee member) / Rykaczewski, Konrad (Committee member) / Phelan, Patrick (Committee member) / Wang, Robert (Committee member) / Arizona State University (Publisher)
Created2018
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Description
The molecular modification of semiconductors has applications in energy

conversion and storage, including artificial photosynthesis. In nature, the active sites of

enzymes are typically earth-abundant metal centers and the protein provides a unique

three-dimensional environment for effecting catalytic transformations. Inspired by this

biological architecture, a synthetic methodology using surface-grafted polymers with

discrete chemical recognition sites

The molecular modification of semiconductors has applications in energy

conversion and storage, including artificial photosynthesis. In nature, the active sites of

enzymes are typically earth-abundant metal centers and the protein provides a unique

three-dimensional environment for effecting catalytic transformations. Inspired by this

biological architecture, a synthetic methodology using surface-grafted polymers with

discrete chemical recognition sites for assembling human-engineered catalysts in three-dimensional

environments is presented. The use of polymeric coatings to interface cobalt-containing

catalysts with semiconductors for solar fuel production is introduced in

Chapter 1. The following three chapters demonstrate the versatility of this modular

approach to interface cobalt-containing catalysts with semiconductors for solar fuel

production. The catalyst-containing coatings are characterized through a suite of

spectroscopic techniques, including ellipsometry, grazing angle attenuated total reflection

Fourier transform infrared spectroscopy (GATR-FTIR) and x-ray photoelectron (XP)

spectroscopy. It is demonstrated that the polymeric interface can be varied to control the

surface chemistry and photoelectrochemical response of gallium phosphide (GaP) (100)

electrodes by using thin-film coatings comprising surface-immobilized pyridyl or

imidazole ligands to coordinate cobaloximes, known catalysts for hydrogen evolution.

The polymer grafting chemistry and subsequent cobaloxime attachment is applicable to

both the (111)A and (111)B crystal face of the gallium phosphide (GaP) semiconductor,

providing insights into the surface connectivity of the hard/soft matter interface and

demonstrating the applicability of the UV-induced immobilization of vinyl monomers to

a range of GaP crystal indices. Finally, thin-film polypyridine surface coatings provide a

molecular interface to assemble cobalt porphyrin catalysts for hydrogen evolution onto

GaP. In all constructs, photoelectrochemical measurements confirm the hybrid

photocathode uses solar energy to power reductive fuel-forming transformations in

aqueous solutions without the use of organic acids, sacrificial chemical reductants, or

electrochemical forward biasing.
ContributorsBeiler, Anna Mary (Author) / Moore, Gary F. (Thesis advisor) / Moore, Thomas A. (Thesis advisor) / Redding, Kevin E. (Committee member) / Allen, James P. (Committee member) / Arizona State University (Publisher)
Created2018
Description
Metalloporphyrins serve important roles in biological processes and in emerging technologies with applications to energy conversion. When electrochemically activated in solution, metalloporphyrins have the ability to catalyze the conversion of protons into hydrogen fuels. In this report, the synthesis and characterization of zinc, nickel, cobalt and copper analogs of 5,10,15,20-tetrakis(pentafluorophenyl)

Metalloporphyrins serve important roles in biological processes and in emerging technologies with applications to energy conversion. When electrochemically activated in solution, metalloporphyrins have the ability to catalyze the conversion of protons into hydrogen fuels. In this report, the synthesis and characterization of zinc, nickel, cobalt and copper analogs of 5,10,15,20-tetrakis(pentafluorophenyl) porphyrin (PF20) and 5,10,15,20-tetra-p-tolyporphyrin (TTP) are described. All target compounds are characterized with UV-Vis spectroscopy and MALDI-TOF mass spectrometry. The freebase porphyrins and non-paramagnetic metalloporphyrins are further characterized by proton nuclear magnetic resonance spectroscopy and all proton resonances are assigned. Electrochemical measurements show the reduction potential of the fluorinated phenyl substituted porphyrins is shifted to less negative values as compared to the reduction potential measured using non-fluorinated analogs. These results illustrate the ability to use fluorine as a synthetic tool for altering the electronic properties of metalloporphyrins. Further, these findings serve a critical role in choosing metalloporphyrin electrocatalysts with the appropriate energetic and optical properties for integration to semiconductors with applications to solar-to- fuels technologies.
ContributorsNanyangwe, Sylvia Kapya (Author) / Moore, Gary (Thesis director) / Van Horn, Wade (Committee member) / School of Criminology and Criminal Justice (Contributor) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05