No description available.

Master of Music / Department of Music / Kurt Gartner / This is a report for anyone playing or teaching any one of the following pieces: Concerto for Vibraphone and Orchestra by Ney Rosauro, Surface Tension by Dave Hollinden, Urban Sketches for Percussion Trio by Lon W. Chaffin, Take Five by Paul Desmond, or DT Supreme by Austin Barnes. The repertoire is analyzed by the method given in Jan Larue’s book Guidelines for Style and Analysis. The report includes interpretive decisions, technical considerations, harmonic analysis, and form.

Bayou St. John is a degraded water-body located within the City of New Orleans and is the focus of restoration efforts. I tested the ability of reintroduced red drum (Sciaenops ocellatus) to survive in this system and assessed their habitat use and behavior. I tracked 29 red drum fitted with external acoustic radio transmitters to determine if they could survive the degraded habitats and determine their general dispersion within the Bayou. All 29 tagged red drum exhibited post-stocking movement (i.e., survival) and occurred primarily in the northern section of the Bayou (nearest Lake Pontchartrain). To assess habitat use and behavior on a finer scale, a second group of 19 red drum were internally tagged with VEMCO transmitters and movements monitored by four remote receivers. These fish exhibited behavior similar to red drum in natural habitats. Monthly movements changed as temperatures changed but were not influenced by diurnal differences, salinity, or conductivity.

O objetivo deste trabalho foi investigar, sob o enfoque da modelagem matemática, a operação de escrubagem da bauxita proveniente da jazida Miltônia 3, da Mina de Bauxita de Paragominas-PA, com vistas a fornecer parâmetros para previsão de seu desempenho e otimização. Para isso, foi realizada uma campanha de experimentos de escrubagem, em um tambor desagregador de laboratório, baseada em planejamento fatorial. Os parâmetros operacionais avaliados foram os seguintes: grau de enchimento, tempo de residência da polpa e velocidade de rotação. A variável de resposta selecionada foi a quantidade de finos (partículas menores que 0,037 mm) no produto desagregado. O programa de experimentos permitiu a análise da influência de cada variável operacional selecionada na desagregação da bauxita. De acordo com os resultados obtidos, o parâmetro operacional que produziu o efeito mais significativo na variável de resposta foi o grau de enchimento. O modelo desenvolvido foi validado através da comparação entre os valores obtidos em ensaios de escrubagem em uma unidade piloto e aqueles previstos pelo modelo. Os valores da quantidade de finos, no produto desagregado, previstos pelo modelo apresentaram uma excelente aproximação com os dados experimentais da operação em escala piloto. / The aim of this study was to investigate and model the bauxite scrubbing of bauxite samples from Miltonia 3, a Vale operation at Pará state, Brazil. The experimental program included the design of a standard laboratory test, from which parameters were derived for predicting the operation of a scrubber in steady state conditions. Three main variables were selected for the laboratory experimental program using the factorial design technique. These were load fraction, residence time and rotation speed. The amount of fines was determined through screening both feed and product of the scrubbing test. The former was considered as a material characteristic while the second was the dependent variable, i.e. the result of the scrubbing process. An empirical model was developed according to which the load fraction was found the most important variable to the scrubbing process. Residence time was also included in the model due to its importance in designing scrubbers for industrial plants. To validate the model a comprehensive pilot plant program was carried out with the same bauxite sample from Miltonia 3 deposit used in the laboratory investigations. The comparison between experimental data and model calculated values indicated a good agreement, as most values were within ±10% deviation range.

abstract: Rotary drums are commonly used for their high heat and mass transfer rates in the manufacture of cement, pharmaceuticals, food, and other particulate products. These processes are difficult to model because the particulate behavior is governed by the process conditions such as particle size, particle size distribution, shape, composition, and operating parameters, such as fill level and rotation rate. More research on heat transfer in rotary drums will increase operating efficiency, leading to significant energy savings on a global scale. This research utilizes infrared imaging to investigate the effects of fill level and rotation rate on the particle bed hydrodynamics and the average wall-particle heat transfer coefficient. 3 mm silica beads and a stainless steel rotary drum with a diameter of 6 in and a length of 3 in were used at fill levels of 10 %, 17.5 %, and 25 %, and rotation rates of 2 rpm, 6 rpm, and 10 rpm. Two full factorial designs of experiments were completed to understand the effects of these factors in the presence of conduction only (Case 1) and conduction with forced convection (Case 2). Particle-particle friction caused the particle bed to stagnate at elevated temperatures in Case 1, while the inlet air velocity in Case 2 dominated the particle friction effects to maintain the flow profile. The maximum heat transfer coefficient was achieved at a high rotation rate and low fill level in Case 1, and at a high rotation rate and high fill level in Case 2. Heat losses from the system were dominated by natural convection between the hot air in the drum and the external surroundings. / Dissertation/Thesis / Masters Thesis Chemical Engineering 2019

The Little Drum Mountains represent a deeply eroded Eocene-Oligocene volcano, consisting of a vent complex which erupted mafic flows and flow breccias, accompanied by lahars. Flows are dominated by members of the shoshonite suite and contain up to 3.95 percent K2O, mainly occult in K-rich glass, with K2O/Na2O ratios greater than 1.0. In a few interbedded flows, apparently of the calc-alkaline series, pyroxene with varying amounts of plagioclase in a fine-grained groundmass of plagioclase, mafic minerals, and interstitial glass. An ash-flow tuff of the Oligocene Needles Range Formation unconformably overlies the volcanic sequence. Contemporaneous eruptions of calc-alkaline and shoshonitic lavas are possibly related to different depths of magna derivation corresponding to two mid-Cenozoic imbricate subduction zones beneath the western United States.

Whilst drum replacement, the act of replacing the sound of a particular drum with a pre-recorded sample, has been in practice since the 1970s it is only towards the end of the first decade of the 21st century that software drum machines such as Toontrack’s Superior Drummer 2.0 and Steven Slate Drums have become an popular alternative to actual drum recordings within music production. With the increasing popularity there have been voices from the music community in protest claiming that a machine could never replace an actual drummer. What I aimed to do in this project was to do a comparative study, where I analyse and compare various aspects of both alternatives – a recorded performance with an actual drummer and a MIDI programmed performance sampled drum machine – and see whether or not a human drummer could possibly be replaceable. The results indicated that, given the circumstances and project restrictions, the differences were mostly too miniscule to have any practical value and therefore a drummer was in this scenario replaceable by a MIDI programmable drum machine. / Trots att “drum replacement”, att ersätta ljudet av en specifik trumma med ett förinspelat ljudklipp, har använts sedan 70-talet så är det först mot slutet av 2000-talets första decennium som mjukvarubaserade trumbibliotek, så som Toontracks Superior Drummer 2.0 och Steven Slate Drums, har blivit ett populärt alternativ för faktiska truminspelningar inom musikproduktion. I och med den ökade populäriteten har många från musikvärlden protesterat och hävdat att en maskin aldrig kan ersätta en riktig trumslagare. Tanken med det här projektet var att göra en jämförande studie där jag analyserar och jämför olika aspekter av de båda alternativen - ett inspelat framförande med en riktig trumslagare och ett framförande programmerat i MIDI med en samplingsbaserad trummaskin - för att se huruvida en mänsklig trummis skulle kunna vara ersättningsbar. Resultaten visade, med hänsyn tagen till projektets begränsningar, att skillnaderna var för små för att ha något praktiskt värde och att en trummisen i det här scenariot därför kunde ersättas med en midiprogrammerbar trummaskin.

The purpose of the current study is to provide students and instructors with a resource to study and teach steelpan through an understanding of the fundamental design and patterns inherent on each instrument. This will be accomplished through an investigation of how an awareness of the symmetrical note layout of the tenor pan, double seconds, triple cellos and six bass can be utilized when learning fundamental music concepts such as scales and chords. Caused by their symmetrical design, the patterns used in steelpan construction interact with the patterns of scales and chords to create commonalities that remain consistent when transposed. When students and teachers are aware of these commonalities, they can be utilized when teaching and learning the instruments. These patterns also inform performance on the instruments, as the commonalities in the transposable patterns lead to recurring stickings. Because of this, the stickings of scales and chords will be discussed throughout the study to determine how the symmetrical design of the instruments can be used to inform stickings. With this study, the author intends to demonstrate the importance of learning the organization of the instrument's note layout, rather than memorizing the location of each note independently. Because of steelpan's cyclical nature, and because the instruments do not conform to a chromatic centric note layout, it can be harder for students to identify the patterns used in steelpan construction. As a result, many novice steelpannists view the note layout of the instruments as a random assortment of notes. The steelpans have been methodically designed, however, and patterns in their note layout do exist. This study should serve as a resource for students and teachers to both acknowledge and understand these patterns.

Post-release survival of hatchery fishes is imperative to the success of any supplemental stocking program. The purpose of this research was to identify differences between hatchery and wild red drum (Sciaenops ocellatus) and determine if pre-release exposure techniques improve survival of hatchery individuals. Objectives were to contrast survival skills of hatchery and wild red drum from different locations, and examine if exposure to natural stimuli (e.g., habitat, predators, live prey) enhances survival skills in naïve hatchery red drum. Laboratory trials using high-speed videography (250 frames per second, fps) and field mesocosm experiments were used to investigate differences in prey-capture (e.g., attack distance, mean attack velocity, capture time, maximum gape, time to maximum gape, gape cycle duration, and foraging behaviors) and anti-predator performance (e.g., reaction distance, response distance, maximum velocity, time to maximum velocity, mean acceleration, and maximum acceleration) of hatchery and wild red drum. Results indicated that anti-predator performance measures differed significantly between hatchery and wild red drum. Variability in prey-capture and anti-predator performance for hatchery and wild red drum was high (CV range: 5.6 – 76.5%), and was greatest for hatchery fish for the majority of performance variables tested. Exposure to habitat (Spartina alterniflora marsh) did not appear to afford any obvious survival benefits to hatchery red drum, although survival skills did vary according to ontogenetic stage. Hatchery red drum exposed to natural predators (pinfish, Lagodon rhomboides) exhibited significantly greater attack distances during feeding events, and anti-predator performance variables were 20 – 300% in these individuals versus naïve red drum. In predation experiments with free-ranging pinfish predators, mortality rates (Z) ranged from 0.047 – 0.060 h-1 · predator-1; however no significant differences in mortality were found between fish reared with and without predators. Hatchery red drum reared on live prey (Artemia franciscana, mysid shrimp) demonstrated enhanced prey-capture and foraging behaviors as well as anti-predator performance relative to fish reared on artificial (pellet) diets. Findings of this research indicate that several behavioral patterns differed between hatchery and wild red drum; however, these differences can be mediated through the use of various pre-release exposure techniques.

Post-release survival of hatchery fishes is imperative to the success of any supplemental stocking program. The purpose of this research was to identify differences between hatchery and wild red drum (Sciaenops ocellatus) and determine if pre-release exposure techniques improve survival of hatchery individuals. Objectives were to contrast survival skills of hatchery and wild red drum from different locations, and examine if exposure to natural stimuli (e.g., habitat, predators, live prey) enhances survival skills in naïve hatchery red drum. Laboratory trials using high-speed videography (250 frames per second, fps) and field mesocosm experiments were used to investigate differences in prey-capture (e.g., attack distance, mean attack velocity, capture time, maximum gape, time to maximum gape, gape cycle duration, and foraging behaviors) and anti-predator performance (e.g., reaction distance, response distance, maximum velocity, time to maximum velocity, mean acceleration, and maximum acceleration) of hatchery and wild red drum. Results indicated that anti-predator performance measures differed significantly between hatchery and wild red drum. Variability in prey-capture and anti-predator performance for hatchery and wild red drum was high (CV range: 5.6 – 76.5%), and was greatest for hatchery fish for the majority of performance variables tested. Exposure to habitat (Spartina alterniflora marsh) did not appear to afford any obvious survival benefits to hatchery red drum, although survival skills did vary according to ontogenetic stage. Hatchery red drum exposed to natural predators (pinfish, Lagodon rhomboides) exhibited significantly greater attack distances during feeding events, and anti-predator performance variables were 20 – 300% in these individuals versus naïve red drum. In predation experiments with free-ranging pinfish predators, mortality rates (Z) ranged from 0.047 – 0.060 h-1 · predator-1; however no significant differences in mortality were found between fish reared with and without predators. Hatchery red drum reared on live prey (Artemia franciscana, mysid shrimp) demonstrated enhanced prey-capture and foraging behaviors as well as anti-predator performance relative to fish reared on artificial (pellet) diets. Findings of this research indicate that several behavioral patterns differed between hatchery and wild red drum; however, these differences can be mediated through the use of various pre-release exposure techniques.