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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.
231

Asepsis und Antisepsis in der zahnärztlichen Praxis unter besonderer Berücksichtigung der Sterilisation des Handstückes

Dreher, Frida, January 1930 (has links)
Thesis (Doctoral)--Ludwig-Maximilians-Universität zu München, 1930.
232

Design and optimization of a stripline resonator sensor for measurement of rubber thickness

Bhuiya, Md. Omar Faruqe. January 2006 (has links)
Thesis (M.S.)--University of Akron, Dept. of Electrical Engineering, 2006. / "December, 2006." Title from electronic thesis title page (viewed 10/17/2007) Advisor, Nathan Ida; Committee members, James Grover, George C. Giakos; Department Chair, J. Alexis De Abreu Garcia; Dean of the College, George K. Haritos; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
233

C.G. Conn Tuba Designs from 1880-1940: An Investigation of Early Tuba Product Lines and Construction Techniques

January 2014 (has links)
abstract: The C.G. Conn instrument manufacturing company is known as one of the most successful and innovative band instrument manufacturers in the history of the United States. Many of C.G. Conn's instrument product lines have undergone significant changes throughout the company's history, especially in the brass family. The C.G. Conn tuba product lines are no exception to this company's extraordinary success, and have been significantly redesigned since the company began manufacturing these instruments in circa 1880. This research project investigates the tuba product lines that C.G. Conn manufactured between 1880 and 1940. C.G. Conn designed six different tuba product lines during this timeframe, including an unnamed tuba product line with Stölzel valves, the Wonder Valve line, the New American line, the Wonder Model line, the 20-J, and the 22-J instrumental product lines. These tuba product lines have been investigated using extant publications and patent information because the majority of C.G. Conn's internal records prior to 1970 have been lost. In addition to investigating each of C.G. Conn's early tuba product lines, this project also explores the particularly anomalous design in the top-action valve apparatus of the Conn Wonder Model tuba product line. This anomalous design was implemented in the all of C.G. Conn's top-action tuba and tuba-like product lines from circa 1890-1940. This author's measurements of period instruments and analysis of data taken from these measurements indicates that this anomalous top-action valve apparatus design utilized interchangeable parts with other front-action C.G. Conn tuba product lines. / Dissertation/Thesis / Doctoral Dissertation Music 2014
234

Microtonality and the recorder 1961-2013 : repertoire, tone colour, and performance

Bowman, Peter January 2014 (has links)
This thesis investigates the development of the recorder's microtonal repertoire from 1961 through to 2013. The artistic impulses for the use of microtones are discussed and selected pieces studied and performed. An investigation is also undertaken into the relationship between pitch, dynamic, and tone colour. This leads to the development of a method for objectively identifying the changes in tone colour that result from using various microtonal fingerings. Very little substantial research has been undertaken into the recorder's contemporary repertoire, and even less so with regard to its engagement with microtones. The skills for producing the expressive effects of dynamic and tone colour, and thus microtones, were known in the early 16th century, lost, and then revived during the period of musical experimentation in post-war Europe. The application of this knowledge, however, has remained limited. This thesis addresses these shortcomings. Following consideration of intonation and interpretation in Chapter 2 a survey of writings analyzing changes in tone colour and dynamic, and the relationship between them, is undertaken in Chapter 3. These include a number of foreign language texts, whilst others appear in American journals, or conference papers not generally available to the British reader. They highlight the tendency for writers to discuss tone colour and dynamic in vague and subjective terms, and in relation to the performance of early music but rarely in the context of contemporary music. This strand of my inquiry is brought to fruition in Chapter 5, where research leading to the development of a method for identifying and quantifying changes in tone colour, through the application of different fingerings, is applied for the first time. The results of an investigation into the evolution of microtonal repertoire composed since the 1960s are recorded in Chapter 4. Different compositional approaches to both instrument and microtonality are reflected in my choice of seven pieces, plus my own composition, that are the subject of detailed study in Chapter 6. The analyses of the pieces discussed in this thesis, and the contexts in which they were composed, represent a significant step forward in the understanding of the instrument and the use of microtones in compositions of the period. My thesis concludes with a live performance in which a selection of microtonal pieces is presented. This serves as a demonstration and confirmation of the principles discussed in this thesis, drawing together the threads of my research, and applying the insights gained in the course of this study.
235

Stability of Secondary String Teachers' Rehearsal Behavior

Erwin, Joanne (Joanne Hall) 08 1900 (has links)
The purpose was to establish the stability of behavior of secondary string teachers. The research problems were (a) to establish the frequency of selected observable elements of content and instructional strategies; (b) to estimate the stability of observed teaching behaviors within and across rehearsals; and (c) to determine the stability of pacing within and across rehearsals. In conclusion, for the population observed, stability of behavior existed. The variable of multiple conduction, not given much attention in research or pedagogical literature, weighted heavily in frequency of occurrence. Demonstration and verbal imagery, encouraged by strong experts, received less than 3% of rehearsal time. Pacing should be considered an important variable in the instructional process and merits further definition and research.
236

The History of the Keyed Brasses

Montgomery, Ralph W. (Ralph William) 05 1900 (has links)
This study examines what makes a keyed brass instrument, early keyed brass instruments, and keyed brass instruments of today. Focuses on the Cornett, the Serpent, the Basshorn and Russian Bassoon, the Ophicleide, the Horn, the Keyed Trumpet, and the Keyed Bugle.
237

Development and analysis of a low power A-C instrument servomechanism

Garrett, John Irvin. January 1964 (has links)
Call number: LD2668 .T4 1964 G23 / Master of Science
238

Apparatus for measurement of electron-gamma directional correlations

Chadwick, Curt Hasbrook. January 1965 (has links)
Call number: LD2668 .T4 1965 C43 / Master of Science
239

A study of drive schemes for synchronous rectifiers in switching powersupplies

謝雪飛, Xie, Xuefei. January 2002 (has links)
published_or_final_version / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy
240

An in vitro comparison of three instrumentation techniques in curved root canals

陳維國, Chan, Wai-kwok, Alex. January 1993 (has links)
published_or_final_version / Dentistry / Master / Master of Dental Surgery

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