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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
841

A Performance Guide to Wu Yiming's "A Poem Carved in Stone"

Xie, Dongni 12 1900 (has links)
A Poem Carved in Stone, a work for piano solo by Washington DC-based Chinese composer Wu Yiming was composed in Spring 2020 and is dedicated to the author of this dissertation. The piece is inspired by the poetry of Han Shan, a recluse who lived during the Tang Dynasty (618-907 A.D.). His poetry is in Chan (Zen) tradition. Wu depicts the imagery and philosophy in Han Shan's poetry through highly complex rhythms, extreme sound effects and pitches, tone clusters, and extended piano techniques. This dissertation provides practical instructions for achieving these effects and executing the unconventional techniques found in this piece, which include playing inside of the piano, various standing and sitting positions, and coordination and balance. A guide to interpret this piece is from both the composer's and the performer's perspective. Observations are drawn directly from communications and coaching received from the composer. This study briefly explores the historical and cultural context of Han Shan's poetry and discusses how Wu's use of modern western compositional devices reflects the Zen philosophy. An interview with the composer is included along with an overview of both his compositions and those of composers who influenced him. It is hoped that this dissertation will encourage pianists who are not experienced with non-traditional techniques to explore new music from living composers.
842

Řešení dynamické odezvy vodohospodářských konstrukcí v interakci s kapalinou / The solution of dynamic response of hydraulic steel structures interacting with fluid

Feilhauer, Michal January 2017 (has links)
Behaviour prediction of hydraulic steel structures with the view to surrounding influences in various design dispositions is a fundamental condition for operational reliability assessment of the analyzed construction. Reliable characteristics of construction behaviour defined by the specification of its movement within changes caused by time and environmental influences is of great importance. In currently used engineering mechanics formulation it concerns setting the response of the defined construction or its part to the given time variable mechanic load. Required response values, which are necessary for evaluation terminal dispositions of capacity and usability of the construction, are trans-location and tension, or values thence derived. Calculation is basic means for response prediction of construction. The thesis presented deals with complex multi-physical behaviour problems of water supply constructions in fluid structure interaction. There are presented various approaches to calculations of static and dynamic qualities of constructions. These approaches are divided into so called “direct method”, which is based on direct connection between two physical fields and the calculation is performed by the method of final elements, and so called “indirect method” , which is based on connection of two physical fields by means of various interfaces, which are described in this thesis. In case of indirect method, the calculation of running liquid is performed by the method of final volumes and the construction calculation is performed by the method of final elements. Within the scope of this thesis, static and dynamic responses of water supply constructions have been solved with the use of the above mentioned approaches. The results of the calculations in the scope of this thesis have been compared with the findings of performed experiments. The final part of the thesis describes the results and generalized findings gathered from the tasks by various approaches.
843

A Countertenor's Reference Guide to Operatic Repertoire

Morris, Brad Lawson 21 May 2019 (has links)
No description available.
844

Investigating Turbine Vane Trailing Edge Pin Fin Cooling in Subsonic and Transonic Cascades

Asar, Munevver Elif 09 July 2019 (has links)
No description available.
845

Sweeping Jet Film Cooling

Hossain, Mohammad Arif 21 September 2020 (has links)
No description available.
846

Romanticism or Baroque? A Comparative Study of Approaches to the Ciaccona Attributed to Tomaso Antonio Vitali

Dang, Ha Viet 08 1900 (has links)
Like numerous other Baroque pieces, the Ciaccona attributed to Tomaso Antonio Vitali (1663-1745) was transformed in the nineteenth and twentieth centuries. The German violinist and composer Ferdinand David (1810-1873) was the first to edit and publish the piece. The composition became popular after being included in the second volume of his Die Hohe Schule des Violinspiels [The Advanced Method of Violin Playing] (c.1867). Since then, Vitali Ciaccona became an essential work in the violin repertoire and is often heard in concert halls. However, what many audiences hear in concerts is essentially an arrangement of the Ciaccona. Acknowledging the "double life" of the piece as both Baroque and Romantic, this dissertation examines the advantages and disadvantages of playing the Ciaccona attributed to Vitali on both the Baroque and modern violins.
847

"Pieces of 9/11: Memories from Houston" by Jake Heggie: A Performance Guide

Liston, Julie 08 1900 (has links)
Jack Heggie's 2011 song cycle Pieces of 9/11: Memories from Houston is a collection of six songs with texts by Gene Scheer. Commissioned by the Houston Grand Opera, it was premiered on September 11, 2011 at the Rothko Chapel in Houston, TX. Based on interviews with people from Houston by Gene Scheer, this cycle tells stories and experiences by those affected by the September 11, 2001 terrorist attacks on the World Trade Center in New York City, The Pentagon in Washington DC, and those aboard United Flight 93 that crashed in Shanksville, Pennsylvania. Scheer's acclaimed storytelling in each song is beautifully set to varying styles of music composed by Heggie, with the familiar theme from Bach's Cello Suite No. 1 in G Major, BWV 1007 woven throughout the cycle. This document is an in-depth look at the cycle to be used by vocal coaches and singers in their preparation and performance. The first introductory chapter is followed by a chapter detailing the song cycle from concept to fruition. The third chapter concentrates on the uses of Bach's Cello Suite No. 1 in G Major, BWV 1007. The fourth chapter discusses the six individual songs first by discussing the background of each text, then an analysis of the music, and concluding with the relevance to 9/11. Chapter 5 includes performance notes, gathered from interviews with Heggie, Scheer, and one of the girl sopranos, Ashley Traughber. Appendices include a timeline of events on 9/11, the three interviews, a chronology of Jake Heggie's vocal works to date, and the author's personal 9/11 story as I was just a few blocks away from the World Trade Center on 9/11.
848

The Journey Home: A Root-metaphor Analysis of the 1840 Mormon Manchester Hymn Book

Arrington, James N. 22 February 2006 (has links) (PDF)
In 1840, apostle missionaries for the Church of Jesus Christ of Latter-day Saints compiled, printed, and began distributing a hymnbook that eventually would become the basis for all subsequent LDS hymnbooks published in English in the nineteenth and twentieth centuries. This thesis, as a contribution to the literature of communication, book history, and hymnology, as well as the intellectual and cultural history of the early years of the LDS Church, focuses on analyzing the poetry of the 1840 Mormon Manchester hymnbook. Using qualitative root-metaphor analysis, the author identified and analyzed expressions, supporting an emergent journey root-metaphor. He then divided the expressions into eight categories, each describing important and distinct aspects of the Journey. These categories include the following: 1) the travelers, 2) the activities on the journey, 3) the way, 4) the destination, 5) the guide, 6) the invitation to come, 7) the motivations, and 8) the lost wanderers. This thesis is based on the assumption that cultures and religions can be understood through the stories they tell. The story of the journey as told through the poetry of the 1840 Manchester hymnbook illuminates one aspect of the religious experience of early members of the Church of Jesus Christ of Latter-day Saints. Taken together, the eight aspects of the journey root-metaphor identified in this thesis tell a story about LDS members as travelers on a journey home, who walk on a straight and narrow path, away from a dark and fallen world, through snares, darkness, and other dangers, toward a glorious destination where rest, joy, and other rewards await them. Ultimately the travelers must rise above this world and follow Christ to a place where they may live with God to serve and praise him ever more.
849

CFD Based External Heat Transfer Coefficient Predictions on a Transonic Film-Cooled Gas Turbine Guide Vane : A Computational Fluid Dynamics Study on the Von Karman Institute LS94 Test Case

Johnsson, Rosalie, Asiegbu, Lilian January 2022 (has links)
The turbine inlet guide vanes of a gas-turbine are subjected to extreme hot gas temperatures which increases the risk of mechanical failure and overall reduces the component lifespan. Hence, it is of great interest for gas-turbine manufacturers to establish methods for accurately estimating the temperature distribution along the vane surface. Due to the three-dimensional nature of turbine flow, it is of interest to establish Computational Fluid Dynamics (CFD) methodology which capture these three-dimensional effects. This thesis is one in a collection of theses conducted at Siemens Energy AB on the subject. Previous studies have investigated and validated the implementation of RANS simulations on non-cooled turbine vanes and endwalls. In this study, the focus is on studying a film cooled vane and establishing one RANS as well as one hybrid modelling strategy for heat transfer coefficient (HTC) predictions. The HTC prediction capabilities are compared and validated against experimental data presented in the doctoral thesis by Fabrizio Fontaneto on the LS94 vane at Von Karman Institute. The chosen RANS modelling method was the Shear Stress Transport (SST) k-ω turbulence model, with γ-Reθ transition modelling, based on the findings by Enico (2021) and Daugulis (2022). The model proved capable in estimating the HTC well on mainly the suction side of the vane. The pressure side HTC was largely under-predicted, a common issue with the SST model also seen in the previous theses as well as the hybrid simulations. The strength of the SST k-ω turbulence model, with γ-Reθ transition modelling, is in accurately capturing the HTC magnitude, most likely due to the well-predicted turbulence intensity decay at the inlet. However, it largely under-predicts the HTC along the suction side film-coolant layer, implying that it may be over-estimating the film-cooling capabilities. The hybrid model chosen was the Scale Resolving Hybrid (SRH) model, with underlying RANS SST k-ω. Compared to RANS, hybrid results were under-estimated, seemingly offset from the experimental data by a constant 200 units along the entire vane midspan. This is likely due to the inaccurate turbulence intensity presented in the SRH simulations, which decays quickly along the inlet compared to RANS and experimental data. Yet still, the hybrid model showed potential in capturing certain results not seen with RANS, such as the secondary flow effects by the vane endwalls, as well as arguably capturing the general HTC trend at midspan seen in the experimental data. Additionally, the section of severely under-predicted HTC by the suction side film-coolant seen with RANS is not present in the hybrid results. Although the hybrid model has proven promising in many aspects, in its current state it is not a viable method for HTC predictions due to its general under-prediction of HTC. Largely, the authors suspect this is due to the undesirably coarse mesh around the cooling holes, which leads to RANS computation in regions where SRH is desired. Thus, improvements would need to be made to the model, where, for example, implementing a zonal hybrid RANS-LES model would be an option. Considering the hybrid model in its current state, RANS is the preferred method, especially when considering the greater computational cost and the labor associated with hybrid simulations which were experienced during this study. In conclusion, it is evident that the correct capture of inlet turbulence intensity decay as well as suitable mesh refinement by the cooling holes are crucial for obtaining the correct magnitudes of HTC, and thus, the capture of it should be of utmost priority in future work within the field.
850

BULLERPROBLEMATIK I BOSTADSOMRÅDE VID NÄRLIGGANDE MOTORVÄG : Södra Källtorp i Västerås

Dusky, Karez, Ahmed, Dania January 2022 (has links)
Purpose: This degree project has investigated the problems Södra Källtorp has with noise due to the nearby highway E18. The purpose of this work is to investigate whether Södra Källtorp meets the guideline values and also whether the implemented noise protection measures in the neighbourhood have caused a change regarding the noise level. Method: The method for carrying out this degree project consisted of a literature study and a case study. The case study was carried out through own measurements and calculations. Four measuring points were chosen. The first two are located in Södra Källtorp and are covered by the noise protection, while the last two are not covered by any noise protection and are located in Råby. Based on the measurement results, the daily equivalent sound level was calculated based on the annual average daily traffic for each measurement point. In addition, interviews were held in order to get a picture of the noise experience among the residents in the neighbourhood. Results: According to the measurement results, the daily equivalent sound level was 55 dBA and the daily maximum sound level 61 dBA for measuring point M1. For measuring point M2, the daily equivalent sound level was 46 dBA while the daily maximum sound level was 53 dBA. Measuring point U1 had a higher noise level than measuring point M1 and measuring point U2 had a higher noise level than measuring point M2. Conclusions: Conclusions that can be drawn are that the noise protection measures have made a change regarding the noise level in Södra Källtorp and that the noise levels in Södra Källtorp do not exceed the guideline values. However, most noise levels that occur in the neighbourhood are not approved according to WHO. More noise protection measures may need to be taken in the future in order to meet WHO’s recommendations.

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