Inaug.-Diss.--Halle-Wittenberg. / Lebenslauf. "Literaturverzeichnis": p. [vii].

Thesis (D.M.A.)--University of Iowa, 2009. / Thesis supervisor: Jeffrey Agrell. Includes bibliographical references (p. 194).

Inaug.-diss.--Halle. / Lebenslauf.

Thesis (D.M.A.)--University of Wisconsin-Madison, 1991. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record.

Thesis--Münster. / Cover title. Vita on verso of back cover. Includes bibliographical references.

Thesis (M.M.) Florida State University, 2003. / Advisor: Bentley Shellahamer, Florida State University, College of Music. Title and description from dissertation home page (viewed 6-26-07). Document formatted into pages; contains 95 pages. Includes biographical sketch. Includes bibliographical references.

abstract: This project discusses the horn, tuba, piano sub-genre of brass chamber music. Alec Wilder wrote the first piece for this instrumentation in 1963 for his friends John Barrows and Harvey Phillips. Wilder's compositional style was directly affected by life events and relationships. Through letters, biographies, recordings and autobiographies the importance of his friendship with Barrows and Phillips are displayed to show the links between the two men and the composer's compositional output. A deeper look into the life of Alec Wilder and a thematic analysis of his Suite No.1 for Horn, Tuba and Piano (1963), and Suite No.2 for Horn, Tuba and Piano (1971) shed light on the beginnings of the genre and provide a deeper understanding of the works. Since Wilder's two trios there have been at least twenty works written for this instrumentation. A brief overview of works written for the trio since 1971 provide a broad sense of the quantity and benefits of the trio in the hopes of inspiring new performances and compositions. This paper will combine the seemingly random compositions for the instrumentation into a collected repertoire. With an increase in exposure, the trio for horn, tuba and piano has the potential to become a standard brass chamber group that will benefit students, performers, and audiences alike. / Dissertation/Thesis / Doctoral Dissertation Music 2015

The four major ecological variables, soils, climate, vegetation and fauna, were studied from May 1966 to November 1967 and again for a short period in 1969 on important California bighorn sheep {Ovis canadensis califomiana Douglas) ranges in the Ashnola region. Emphasis in this investigation was placed on completing the basic extensive resource inventory as well as on initiating experimental range rehabilitation practices for future management of critical forage resources on the winter ranges. The soils inventory was based primarily on the survey recently completed for the Canada Department of Agriculture (Green, in print) for the Princeton map sheet. Extrapolation for the eastern half of the study area was accomplished with the use of air photos and some additional ground surveys. The climatic factors measured were: air and soil temperature, precipitation, snow depth and evaporation. This was done by establishing two summer climatic transects and one snow depth transect. These transects were altitudinally spaced along available access roads. The vegetation analysis was conducted with the use of site specific species lists, point quadrat and line transects and air photos. Both the habitat and soil type maps were constructed from available air photo coverage and ground surveys. Ungulate distributions were mapped from ground observations, aerial helicopter surveys and previous reports. Range rejuvenation experiments, using large exclosures, fertilization and reseeding, were conducted concurrently with the inventory. Five sites were chosen for these rehabilitation trials. Soils in the study area vary from Brown and Dark Brown to Alpine Dystric Brunisols. The mid-grasslands occur predominantly on Chernozem!c, the Rego Dark Gray to Orthic Black soils. Related in large measure to the physiography of the region, large areas have nonproductive soils, talus slopes and sheer rocks; vegetative production is extremely limited on such sites. Altitude and exposure greatly affect the temperature and precipitation regime within the area. At low altitudes the moisture supply limits productivity. Summer evaporation is very high on exposed low grassland slopes. With rising elevation the precipitation generally increases, and evaporation and mean temperatures decrease. Exposure greatly affects the overall climatic regime. This is reflected in the variable vegetative cover and productivity. Climatic change, variable between years, caused considerable fluctuation in forage production between years. Vegetative zonation is clearly recognizable in the area. The zones and thus habitat types are altitudinally delimited. Fire, logging and ungulate grazing have caused much disturbance. Reseeding was not very successful, especially on stable plant communities on Juniper and South Slope. Fertilization had considerable effect on forage production on all sites. Standing crop increases, as measured by a single annual clipping during late July, were sustained for at least three years on the Poa sp. and Agropyron spicatum sites. Excluding ungulates from the five fenced sites resulted in changes in species composition, plant vigor and increased forage production. Some progressive trends towards climax were recognized on at least two sites in 1969. Climatic factors, primarily temperature and moisture supply, grazing history and soils, all contributed to local and annual variability in forage yields. Periodic protection of important grasslands from use and fertilization of some slopes show promise as management tools. / Land and Food Systems, Faculty of / Graduate

Baroque music is an area largely neglected in the music education of young horn students and wind players in general. Baroque horn repertoire is very demanding primarily due to the range. Baroque composers wrote for horn using the uppermost register of the instrument. In this range the partials are closer together, allowing for more melodic writing. This music requires an advanced level of technique, endurance, and ability. Often this repertoire is not suitable for students until they are well into their collegiate years of study. Frequently this music is performed on descant horns. Since only a small number of middle school and high school horn students continue to play after they leave their school band programs, they many never get first hand experience performing Baroque music. Vocal students are often introduced to Baroque arias early in their training. Purcell’s songs and arias are an excellent example of the literature that young voice students use. These arias and songs can be the perfect portal to Baroque music for horn students as well. Here I have created an edition of Henry Purcell’s songs and arias for young horn students. Each aria used the text as a guide for the “affect” and its impact on tone, articulation, and phrasing. The bass line is also used as a guide for determining tempo and style. Each piece is transcribed as a solo with piano accompaniment and as a duet. The goal of this edition is to use Baroque vocal music to introduce horn students to the musical concepts of expression, articulation, phrasing, and tempo.

It is known that the 1-18 GHz Double Ridge Guide Horn (DRGH) antenna is highly sensitive to tolerances in manufacturing. Since a typical DRGH antenna is constructed from a number of individual parts, tolerances in the machining, even when numerically controlled, and errors in the assembly can easily lead to gaps between subsections. Performance deviations, most notably resonances in the boresight gain and VSWR was observed in a number of manufactured 1-18 GHz DRGH antennas. The exact cause of the performance deviations had to be determined in order to identify which sections of the antenna need to be redesigned in such a way that the effects of the manufacturing and assembling tolerances on the performance of typical mass produced DRGH antennas are reduced or eliminated. It was hypothesised that gaps most notable in the waveguide launcher section and especially the coaxial feeding section is the cause of the sharp resonance effects. This hypothesis was confirmed during the study. A highly accurate Method of Moments (MoM) numerical model of the 1-18 GHz DRGH antenna was developed, gaps were then implemented in between various parts of the model and the results observed. Based on these results a new improved 1-18 GHz DRGH antenna was designed with reduced sensitivity to manufacturing tolerances and improved performance. / Dit is alombekend dat die 1-18 GHz Dubbel Rif Golfleier Horing (DRGH) antenna baie sensitief is vir vervaardigings toleransies. 'n Tipiese DRGH antenna bestaan uit verskeie individuele onderdele. Toleransies in vervaardiging, selfs al word die proses numeries beheer, kan dus lei tot spasies tussen verskillende dele. Die waarneming van verswakte werkverrigting, meer spesifiek resonansies in die wins en Spannings Staande Golf Verhouding (SSGV) by 'n aantal vervaardigde 1-18 GHz DRGH antennes het gelei tot verdere studie. Om die 1-18 GHz ontwerp minder sensitief te maak ten opsigte van toleransies, moes die presiese oorsaak van die verswakte werkverrigting bepaal word. Aan die begin van die studie was die vermoede dat spasies in veral die golfleierlanseerder en meer spesifiek die koaksiale voer seksie, die oorsaak is van die resonansies. Die hipotese is in die daaropvolgende ondersoek bevestig. 'n Hoogs akkurate Metode van Momente (MvM) numeriese model is vir die 1-18 GHz DRGH antenna ontwikkel. Spasies is tussen verskeie parte van die model ge-inkorporeer en die resultate is ondersoek. 'n Nuwe verbeterde 1-18 GHz DRGH antenna op die ondersoek gebaseer, is ontwikkel. Die antenna het verminderde sensitiwiteit ten opsigte van vervaardigings toleransies sowel as verbeterde werkverrigting. / Dissertation (MEng)--University of Pretoria, 2011. / Electrical, Electronic and Computer Engineering / Unrestricted