The purpose of this study is to trace the development of a practically extinct woodwind instrument, the basset horn, and its use by composers as both a solo and an orchestral instrument. The first chapter concerns the development of the basset horn from the earliest imperfect specimen to the modern-day instrument. The second chapter deals with the physical characteristics that are peculiar to the instrument. The third chapter discusses the literature and musical history of the basset horn. An appendix provides a comprehensive listing of literature for the instrument.

In the modern clinical and healthcare setting, the electronic collection and analysis of patient related vital signs and parameters are a fundamental part of the relevant treatment plan and positive patient response. Modern analytical techniques combined with readily available computer software today allow for the near real time analysis of digitally acquired measurements. In the clinical context, this can directly relate to patient survival rates and treatment success. The processing of clinical parameters, especially the Electrocardiogram (ECG) in the critical care setting has changed little in recent years and the analytical processes have mostly been managed by highly trained and experienced cardiac specialists. Warning, detection and measurement techniques are focused on the post processing of events relying heavily on averaging and analogue filtering to accurately capture waveform morphologies and deviations. This Ph. D. research investigates an alternative and the possibility to analyse, in the digital domain, bio signals with a focus on the ECG to determine if the feasibility of bit by bit or near real time analysis is indeed possible but more so if the data captured has any significance in the analysis and presentation of the wave patterns in a patient monitoring environment. The research and experiments have shown the potential for the development of logical models that address both the detection and short term predication of possible follow-on events with a focus on Myocardial Ischemic (MI) and Infraction based deviations. The research has shown that real time waveform processing compared to traditional graph based analysis, is both accurate and has the potential to be of benefit to the clinician by detecting deviations and morphologies in a real time domain. This is a significant step forward and has the potential to embed years of clinical experience into the measurement processes of clinical devices, in real terms. Also, providing expert analytical and identification input electronically at the patient bedside. The global human population is testing the healthcare systems and care capabilities with the shortage of clinical and healthcare providers in ever decreasing coverage of treatment that can be provided. The research is a moderate step in further realizing this and aiding the caregiver by providing true and relevant information and data, which assists in the clinical decision process and ultimately improving the required standard of patient care.

W. A. Mozart¡¥s compositions for clarinet played a significant role in the music history. Many scholars took their attention to Concerto in A major for Clarinet and Orchestra. However, the importance of Clarinet Quintet for Clarinet and String Quartet is unneglectable. According to the literature, the development of clarinet in the musical history is no earlier than the seventeenth century. Clarinet had a variety of sizes and tonalities in the beginning of development. Mozart composed lots of brilliant compositions for the combination with the clarinet in A. A. Stadler, a clarinetist, had excellent skill in playing clarinet. He cooperated with T. Lotz, an instrumental maker, extended the compass of basset clarinet lower to C. Inspired by Stadler and the invented instrument, Mozart wrote Clarinet Quintet, K. V. 581 and Clarinet Concerto, K. V. 622 for the basset clarinet. Mozart¡¦s Clarinet Quintet, K. V. 581 is undeniably important to the history of chamber music. Clarinet Quintet, K. V. 581 is composed in four movements. Harmony, form, texture, idiom and expression in every movement were discussed in Chapter3. The setting of clarinet and string quartet was also an innovation for the chamber music in his time. This setting of Clarinet Quintet became one of the standard settings which several composers tried to compose music for. Among the works, J. Brahms¡¦ Clarinet Quintet, op. 115 and M. Reger¡¦s Clarinet Quintet, op. 146 have gained the same respect as Mozart¡¦s Clarinet Quintet, K. V. 581. These works have several similarities. For example, they were all created in one or two years before the composers¡¦ death, and the inspiration for creating the music all came from the cooperation with the outstanding performers ¡Ketc. To sum up, Mozart¡¦s Clarinet Quintet, K. V. 581 is important and influential to the history of chamber music.

Presented as Thesis (Ph. D.)--University of Wisconsin--Madison, 1916. / Cover title. Reprinted from Genetics, vol. 1 (May-July 1916). eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

No trabalho desenvolvido estudaram-se as forças que atuam em uma partícula quando esta se movimenta em escoamentos, com intuito de obter uma metodologia capaz de representar o movimento de uma partícula em um escoamento. A equação do movimento da partícula foi integrada numericamente considerando os termos de massa aparente, arrasto estacionário, arrasto não estacionário (forças de Boussinesq/Basset) e forças de sustentação; efeito Magnus e efeito Saffman. O método dos volumes finitos foi utilizado para simulação do escoamento. Na análise das forças utilizamos tanto experimentos quanto simulações numéricas (FLUENT) para avaliar e aumentar a validade dos modelos apresentados na revisão bibliográfica. O FLUENT foi validado para obtenção do coeficiente de arrasto estacionário e sustentação devido ao efeito Magnus. Palavras-chaves: Efeito Magnus, efeito Saffman, força de Bousinesq/Basset, movimento de partículas e solução numérica. / In the developed work was studied the forces which act on a particle when these is a moving inside of a flow, in order to find out a methodology which is able to represent the particle dynamics on a flow. The equation of particle motion was integrated with a numerical approach taking in account the apparent mass, static drag, dynamic drag (history term; Boussinesq/Basset force) and lift force; Magnus effect and Saffman effect. The finite volume method was used to simulate the flow. In the force analyses we used experimental and numerical simulation (FLUENT) to evaluate and extend the models shown on the review. FLUENT was validated to determine the static drag coefficient and lift coefficient due to Magnus effect.

No trabalho desenvolvido estudaram-se as forças que atuam em uma partícula quando esta se movimenta em escoamentos, com intuito de obter uma metodologia capaz de representar o movimento de uma partícula em um escoamento. A equação do movimento da partícula foi integrada numericamente considerando os termos de massa aparente, arrasto estacionário, arrasto não estacionário (forças de Boussinesq/Basset) e forças de sustentação; efeito Magnus e efeito Saffman. O método dos volumes finitos foi utilizado para simulação do escoamento. Na análise das forças utilizamos tanto experimentos quanto simulações numéricas (FLUENT) para avaliar e aumentar a validade dos modelos apresentados na revisão bibliográfica. O FLUENT foi validado para obtenção do coeficiente de arrasto estacionário e sustentação devido ao efeito Magnus. Palavras-chaves: Efeito Magnus, efeito Saffman, força de Bousinesq/Basset, movimento de partículas e solução numérica. / In the developed work was studied the forces which act on a particle when these is a moving inside of a flow, in order to find out a methodology which is able to represent the particle dynamics on a flow. The equation of particle motion was integrated with a numerical approach taking in account the apparent mass, static drag, dynamic drag (history term; Boussinesq/Basset force) and lift force; Magnus effect and Saffman effect. The finite volume method was used to simulate the flow. In the force analyses we used experimental and numerical simulation (FLUENT) to evaluate and extend the models shown on the review. FLUENT was validated to determine the static drag coefficient and lift coefficient due to Magnus effect.

This dissertation is a comprehensive study of the life and work of the Viennese woodwind instrument maker Theodor Lotz. Lotz is central to many of the most significant developments in woodwind instrument manufacture and compositions of late 18th century Vienna, and is associated with some of the greatest players and composers of the day. Despite this, no study has been undertaken into his life and many of his surviving instruments have not been studied. This study corrects this by examining both the biographical and organological aspects of this maker. In Chapter 1, the current knowledge of Lotz’s biography is examined for veracity. This has been achieved through consultation of archival sources such as birth and marriage registers and contemporary newspaper announcements. The biographies of the other significant Viennese makers have also been examined in order to determine their relationship to Lotz. Particular attention has been paid to those makers known to have associated with him. Chapter 2 is a comparative study of clarinets. The surviving clarinet by Lotz is the main focus, and it is compared to earlier Viennese instruments as well as other contemporary instruments in order to place Lotz’s instruments in context. Basset horns are the instruments for which Lotz is best known. Chapter 3 is a comparative study of the surviving basset horns, and includes instruments by Lotz which have not previously been studied. The comparative aspect of the study focuses most particularly on instruments by Doleisch, who also made significant numbers of basset horns in nearby Prague during Lotz’s lifetime. This chapter also includes a discussion on the basset clarinet. Chapter 4 studies Lotz’s work with bassoons and contrabassoons. As with Chapter 3, it includes a number of Lotz’s instruments which have not been studied before. It continues the comparative theme and examines not only Viennese instruments, but particularly those by August Grenser, whose bassoons are widely copied by modern makers. The attribution of the surviving flute by Lotz is examined in Chapter 5. Lotz’s involvement with the flute is examined through documentary evidence and the output of his students is examined in order to determine his level of influence on this instrument. Chapter 6 is a study of the two surviving oboe fragments by Lotz as well as the surviving cor anglais. As internal measurements have been impossible to obtain for many of these instruments, the comparative study has instead focussed on external aspects of decoration and design. The conclusion gives a summation of the evidence presented in the preceding chapters and is used to demonstrate Lotz’s unique contributions as an instrument maker and his impact on the future and design of woodwind instruments.

No description available.

Maîtrise--Études des arts--Montréal--Université du Québec, 1995. / Bibliogr. p. 184-195.

This work evaluates the relative significance of forces determining the motion of a pulverized coal particle under conditions representative of a pressurized oxy-coal combustor. The gravity force and surface forces of drag, fluid stress, added mass, and Basset history are discussed and appropriate forms of these force equations are chosen, with a consideration of spherical and non-spherical drag and the Basset history kernel. Studies from the literature that emphasize specific forces are used to validate the implementation of the force equations and correlations. Modeling is based on time-averaged, one-dimensional motion of a single non-reacting particle along the centerline of a round, turbulent jet. The numerical methodology employed for solving the particle equation of motion is described in detail, and simulated particle motion is compared to experimental and high-fidelity simulations from the literature. Comparisons show the numerical methodology performs adequately relative to higher fidelity simulations and experimental test cases for one-dimensional, time-invariant conditions. To assess the effect of pressure on particle forces and motion under different conditions, simulation cases are run for particle diameters of 20 μm, 50 μm, 125 μm, gas temperatures of 300 K and 1500 K, and gas pressures of 1.01325 bar, 2 bar, 5 bar, 10 bar, 20 bar, 40 bar. Simulations are conducted over a 0.75-m length in a simplified environment representative of the pressurized oxy-coal (POC) combustor at Brigham Young University. Results show that all surface forces examined can be locally significant at high gas pressures when particle and gas velocity differences, i.e., particle Reynolds numbers, are greatest. The following trends are found for the behavior of surface forces in simplified, POC combustor simulations: 1) The quasi-steady drag force is always significant, though it's relative contribution to particle motion decreases as particles traverse regions with significant fluid velocity gradients or significant values for the substantial derivative of fluid velocity. Furthermore, quasi-steady drag is the only surface force that is significant throughout the entirety of a particle's trajectory. The relative contribution of the drag force decreases with increasing gas pressure. 2) The impact of the fluid stress force on particle motion increases with increasing gas pressure and particle size. The fluid stress force can be locally important for all of the particles sizes when at a gas temperature of 300 K and elevated pressure, as particles traverse regions with significant substantial derivatives of fluid velocity. The local impact of the fluid stress force is largely negligible at 1500 K, except for the case of the largest particle at the greatest pressure. 3) The behavior of the added mass force largely mirrors that of the fluid stress force, though the added mass force is generally of lesser magnitude. Therefore, the added mass force can be locally important for all of the particles sizes when at a gas temperature of 300 K and elevated pressure, as particles traverse regions with significant substantial derivatives of fluid velocity. The added mass force is generally the least significant of the analyzed surface forces. 4) The Basset history force is locally significant for all cases where the particles are traversing regions with significant fluid velocity gradients. The impact of the Basset history force on particle motion increases with increasing gas pressure and particle size, while decreasing as gas temperature increases.