The master thesis deals with modal analysis of the blade of the steam turbine impeller. This analysis is made to find the frequency response of the blade in order to predict the dangerous speeds of the steam turbine. At first the problem situation is described. Than follows the research study which is focused on steam turbines and especially on the rotor dynamic systems and the way to ascertain the modal parameters of the dynamic system by experiment. After that the solution of the problem is performed by computational modelling. The results of the computation are analyzed in detail for different variations of the blade length by Campbell diagram. A graph showing dependency between dangerous speeds of the turbine and the blade length is made out of the results. Then the results are verified by experiment and the coefficients of proportional damping are specified. In conclusion the optimal variation of the blade length for the given operational state is determined.

Under pandemiåren 2020 - 2021 förändrades förutsättningarna att vara kyrka i grunden. I denna uppsats analyseras kören som ett uttryck för församlingsgemenskap. Genom en intervjuundersökning bestående av fokusgrupper med körsångare och enskilda intervjuer med körledare och kyrkoherde beskrivs den församlingsgemenskap som framträder och hur den påverkades under perioden. Hur digitala verktyg användes som resurs under pandemin beskrivs också. Intervjuerna har transkriberats och analyserats utifrån Andreas Holmbergs avhandling om levd ecklesiologi i Svenska kyrkan.

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The purpose of this essay is to show that what defines a hero is far more complicated than the prolific author and mythological expert Joseph Campbell would have one believe – in his view, heroic qualities stem from a certain type of chosen individual and reoccurring narrative motifs without taking social structures and masculinity into account. By analyzing the characters Beowulf and Odysseus through a filter, consisting of Campbells model of the “hero’s journey” along with perspectives provided by studies in the masculinity field done by Raewyn Connell and Jørgen Lorentzen together with Claes Ekenstam, this essay concludes, in short, the following: applying Campbells model of the hero does reveal several similarities between the two characters, though it ultimately fails to prove any deeper connection. The aspects brought into focus by utilizing different concepts of masculinity however, proved to be more enlightening, with the most notable conclusion that the various tests forced upon both Beowulf and Odysseus mirror Raewyn Connells concept of “the hegemonic masculinity”, which in essence means that the most elevated masculine qualities existing in the context of the book are also the same ones being targeted by the antagonistic forces present in the story.

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The purpose of this comparative study is to analyse La Quintrala’s myth as a symbolic discourse, thereby filling a gap in the previous studies about La Quintrala. The theoretical and methodological framework of this analysis consists of a hermeneutical approach based on the method of figurative structuralism: mythocriticism. This is a dual classification method of symbols: Diurnal and Nocturnal Orders that expose the symbolic structures formed by symbols and archetypes found in mythemes in a compilation of corpora. The first one is Gustavo Frías’ novels Tres Nombres para Catalina: Catrala (2008) and Tres nombres para Catalina: la doña de Campofrío (2008); the second is a historic essay (hypotext), Benjamín Vicuña Mackenna’s Los Lisperguer y la Quintrala (1944), and four novels: Magdalena Petit’s (2009) La Quintrala, Mercedes Valdivieso’s (1991) Maldita yo entre las Mujeres, Virginia Vidal’s (2002) Oro, veneno y puñal, and Gustavo Frías’ El Inquisidor (2008). Mythocriticism is employed in the analysis to show what the mythical structure of the hero’s journey (Separation, Initiation, Return) reveal. Such journey is combined structurally with the Mother archetype (White, Red and Black Goddess), the intrinsic archetype of La Quintrala’s myth. The heroic structure unveils its own mythemes, La Quintrala’s and the first corpus’s mytheme through the diachronic and synchronic flow of the hero’s journey. This method permits to identify and compare the progression of the symbolic structures. The analysis demonstrates a transformation of the symbolic structures between both corpora. This survey reveals that Vicuña Mackenna and Petit, and partially Vidal and El Inquisidor, exhibit an inclination to the diurnal symbols that strengthen, through a heterodiegetic narrator, the representations of the witch-femme fatale, counteractive attributes of the Red and Black Goddesses in the myth. Valdivieso, on the other hand, shows a propensity to the nocturnal symbols of inversion and intimacy that emphasize the Red Goddess’ features, though the novel also exposes La Quintrala as a witch-femme fatale. This exposure occurs through the use of both an autodiegetic narrator –La Quintrala– and a heterodiegetic one –the hypotext embodied in the popular voice– that appear to contrast each other. Finally, in Tres Nombres para Catalina, La Quintrala as the autodiegetic narrator dominates the whole story. She personifies the Great Goddess archetype who bestows her new positive attributes during the adventure. This novel assumes primordially the nocturnal symbolism incarnated by both the mystical and the synthetical structures and relegates the diurnal discourse of the hypotext to a secondary position in the narrative. Nonetheless, Tres Nombres para Catalina’s narrative still relies on the hypotext to reproduce and reconstruct all the mythemes in the myth of La Quintrala. Conclusively, the results of this analysis indicate that the identification of all the mythemes supports the hypothesis of a transformation in the symbolic structures which characterize La Quintrala in both corpora. This reveals the embodiment of Tres Nombres para Catalina’s own mytheme, consisting of a vindication and a recognition to her indigenous heritage, and the acceptance of her mestizaje. As a consequence, Tres nombres para Catalina, in comparison to the second corpus, diverges and expands the symbolic structures, but still shows a continuity of the myth.

Nous analysons la structure gibbsienne de la loi de diffusions infini-dimensionnelles de type gradient, modélisant des systèmes continus de particules browniennes en interaction. En représentant les solutions de tels systèmes par des mesures ponctuelles sur l'espace des trajectoires, nous démontrons l'équivalence entre être la loi d'une solution d'un système de type gradient et être un champ de Gibbs sur l'espace des trajectoires continues associé à un hamiltonien local dynamique spécifique. Plus généralement, nous montrons que tout champ de Gibbs, suffisamment régulier, se représente comme une diffusion infini-dimensionnelle dont nous calculons la dérive. Nous donnons également diverses applications de ces résultats ; nous exhibons notamment une formule de retournement du temps pour les systèmes de type gradient et en étudions ainsi la réversibilité et la stationnarité.

Made available in DSpace on 2016-04-25T20:20:54Z (GMT). No. of bitstreams: 1 Carlos Aldemir Farias da Silva.pdf: 11344482 bytes, checksum: 05dfab8d9a779bb1e7409740b7d34c56 (MD5) Previous issue date: 2012-12-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / As immemorial reserves of the human condition, the myths are present in all societies. They organize cosmovisions, propose solutions to dilemmas, enigmas and contradictions that the real world cannot solve. As machines of time suppression, as defined by Claude Lévi-Strauss, the mythic narratives do not submit themselves to the linearity of history. Joseph Campbell (1904-1987), centerpiece of this thesis, a north-american born in New York, occupies a place of great remark in the pantheon of mythological interpretations. The greatness of his work is more than recognized, although the comprehension of his ideas still remains shy in Human Sciences. It is a body of work that is open to the various cultural devices which, beyond science, include literature and cinema, the latter being responsible for the popularization of Campbell‟s ideas with the Star Wars series. The thesis invests in the life and work dialogism from a bibliographic incursion; it traces the most representative itineraries of Campbell‟s life (Stephen and Robin Larsen) which led him to discuss the functions and potentialities of myth in contemporary society; it sketches the scenery of science in the interior from which emerges the north-american mythologist; it exposes a synthetic archaeology of the figures which constitute The Hero of a Thousand Faces; it exposes the author‟s arguments concerning his treatment of the recurring themes in mythical narratives (cultural diversity) towards the universality of culture (archetypical unity of the myths); it presents the chronological mapping of the author‟s work in the original editions in English and its translations in Brazil; it exposes and problematizes stemming from the research on the Thesis‟ Database of Capes the resonance of Campbell‟s ideas in the Brazilian scientific production (1990-2010); and it presents, in full, interviews with two experts and translators of the author‟s works to Portuguese. The central argument of this thesis is the indissoluble relationship between the author‟s lived experience and interest for the study of myths, that is, the contingencies of life which illuminate the choice of a study theme, above all those which are rooted in infancy and adolescence. Because he is a transdisciplinary thinker who moved in the dominions of art, literature, science and religion, the polyphony contained in his compared study of world mythologies demanded, from this research, a dialogue with authors from different and complementary areas like Carl Gustav Jung, Jean-Pierre Vernant, Edgar Morin among others. The basic interpretative soil centered on nineteen fundamental works translated in Brazil. The thesis has as a horizon to establish connections between science and arts, towards the constitution of a fundamental anthropology of universalist, complex and transdisciplinary base / Reservas imemoriais da condição humana, os mitos estão presentes em todas as sociedades. Organizam cosmovisões, propõem soluções para dilemas, enigmas e contradições que o mundo real não consegue resolver. Máquinas de supressão do tempo, como definiu Claude Lévi-Strauss, as narrativas míticas não se submetem à linearidade da história. Tema central desta tese, Joseph Campbell (1904-1987), norte-americano nascido em Nova York, ocupa lugar de destaque no panteão das interpretações mitológicas. A grandeza de sua obra é mais do que reconhecida, embora a compreensão de suas ideias ainda permaneça tímida nas Ciências Humanas. Trata-se de uma obra aberta aos diversos dispositivos da cultura que, além da ciência, inclui a literatura e o cinema, esse último responsável pela popularização das ideias de Campbell com a série Guerra nas Estrelas. A tese investe na dialogia vida e obra a partir de uma incursão bibliográfica; traça os itinerários mais representativos da vida de Campbell (Stephen e Robin Larsen) que o levaram a discutir as funções e potencialidades do mito na sociedade contemporânea; esboça o cenário da ciência no interior do qual desponta o mitólogo norte-americano; expõe uma sintética arqueologia das figuras que constituem O herói de mil faces; expõe os argumentos do autor no que diz respeito ao seu tratamento dos temas recorrentes nas narrativas míticas (diversidade cultural) em direção à universalidade da cultura (unidade arquetípica dos mitos); apresenta o mapeamento cronológico da obra do autor nas edições originais em inglês e suas traduções no Brasil; expõe e problematiza, a partir da pesquisa no Banco de Teses da Capes, as ressonâncias das ideias de Campbell na produção científica brasileira (1990-2010); e apresenta, na íntegra, entrevistas com duas conhecedoras e tradutoras para o português da obra do autor. O argumento central da tese é a relação indissociável entre a experiência vivida do autor e o interesse pelo estudo dos mitos, isto é, as contingências da vida que iluminam a escolha de um tema de estudo, sobretudo aquelas que estão enraizadas na infância e adolescência. Por ser um pensador transdisciplinar que transitou nos domínios da arte, da literatura, da ciência, da religião, a polifonia contida em seu estudo comparado das mitologias do mundo exigiu, desta pesquisa, um diálogo com autores de áreas distintas e complementares, como Carl Gustav Jung, Jean-Pierre Vernant, Edgar Morin, entre outros. O solo interpretativo básico centrou-se em dezenove obras fundamentais traduzidas no Brasil. A tese tem como horizonte estabelecer conexões entre ciências e arte, em direção à constituição de uma Antropologia fundamental de base universalista, complexa e transdisciplinar

Made available in DSpace on 2016-04-26T14:54:02Z (GMT). No. of bitstreams: 1 Carlos Aldemir Farias da Silva.pdf: 11344482 bytes, checksum: 05dfab8d9a779bb1e7409740b7d34c56 (MD5) Previous issue date: 2012-12-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / As immemorial reserves of the human condition, the myths are present in all societies. They organize cosmovisions, propose solutions to dilemmas, enigmas and contradictions that the real world cannot solve. As machines of time suppression, as defined by Claude Lévi-Strauss, the mythic narratives do not submit themselves to the linearity of history. Joseph Campbell (1904-1987), centerpiece of this thesis, a north-american born in New York, occupies a place of great remark in the pantheon of mythological interpretations. The greatness of his work is more than recognized, although the comprehension of his ideas still remains shy in Human Sciences. It is a body of work that is open to the various cultural devices which, beyond science, include literature and cinema, the latter being responsible for the popularization of Campbell‟s ideas with the Star Wars series. The thesis invests in the life and work dialogism from a bibliographic incursion; it traces the most representative itineraries of Campbell‟s life (Stephen and Robin Larsen) which led him to discuss the functions and potentialities of myth in contemporary society; it sketches the scenery of science in the interior from which emerges the north-american mythologist; it exposes a synthetic archaeology of the figures which constitute The Hero of a Thousand Faces; it exposes the author‟s arguments concerning his treatment of the recurring themes in mythical narratives (cultural diversity) towards the universality of culture (archetypical unity of the myths); it presents the chronological mapping of the author‟s work in the original editions in English and its translations in Brazil; it exposes and problematizes stemming from the research on the Thesis‟ Database of Capes the resonance of Campbell‟s ideas in the Brazilian scientific production (1990-2010); and it presents, in full, interviews with two experts and translators of the author‟s works to Portuguese. The central argument of this thesis is the indissoluble relationship between the author‟s lived experience and interest for the study of myths, that is, the contingencies of life which illuminate the choice of a study theme, above all those which are rooted in infancy and adolescence. Because he is a transdisciplinary thinker who moved in the dominions of art, literature, science and religion, the polyphony contained in his compared study of world mythologies demanded, from this research, a dialogue with authors from different and complementary areas like Carl Gustav Jung, Jean-Pierre Vernant, Edgar Morin among others. The basic interpretative soil centered on nineteen fundamental works translated in Brazil. The thesis has as a horizon to establish connections between science and arts, towards the constitution of a fundamental anthropology of universalist, complex and transdisciplinary base / Reservas imemoriais da condição humana, os mitos estão presentes em todas as sociedades. Organizam cosmovisões, propõem soluções para dilemas, enigmas e contradições que o mundo real não consegue resolver. Máquinas de supressão do tempo, como definiu Claude Lévi-Strauss, as narrativas míticas não se submetem à linearidade da história. Tema central desta tese, Joseph Campbell (1904-1987), norte-americano nascido em Nova York, ocupa lugar de destaque no panteão das interpretações mitológicas. A grandeza de sua obra é mais do que reconhecida, embora a compreensão de suas ideias ainda permaneça tímida nas Ciências Humanas. Trata-se de uma obra aberta aos diversos dispositivos da cultura que, além da ciência, inclui a literatura e o cinema, esse último responsável pela popularização das ideias de Campbell com a série Guerra nas Estrelas. A tese investe na dialogia vida e obra a partir de uma incursão bibliográfica; traça os itinerários mais representativos da vida de Campbell (Stephen e Robin Larsen) que o levaram a discutir as funções e potencialidades do mito na sociedade contemporânea; esboça o cenário da ciência no interior do qual desponta o mitólogo norte-americano; expõe uma sintética arqueologia das figuras que constituem O herói de mil faces; expõe os argumentos do autor no que diz respeito ao seu tratamento dos temas recorrentes nas narrativas míticas (diversidade cultural) em direção à universalidade da cultura (unidade arquetípica dos mitos); apresenta o mapeamento cronológico da obra do autor nas edições originais em inglês e suas traduções no Brasil; expõe e problematiza, a partir da pesquisa no Banco de Teses da Capes, as ressonâncias das ideias de Campbell na produção científica brasileira (1990-2010); e apresenta, na íntegra, entrevistas com duas conhecedoras e tradutoras para o português da obra do autor. O argumento central da tese é a relação indissociável entre a experiência vivida do autor e o interesse pelo estudo dos mitos, isto é, as contingências da vida que iluminam a escolha de um tema de estudo, sobretudo aquelas que estão enraizadas na infância e adolescência. Por ser um pensador transdisciplinar que transitou nos domínios da arte, da literatura, da ciência, da religião, a polifonia contida em seu estudo comparado das mitologias do mundo exigiu, desta pesquisa, um diálogo com autores de áreas distintas e complementares, como Carl Gustav Jung, Jean-Pierre Vernant, Edgar Morin, entre outros. O solo interpretativo básico centrou-se em dezenove obras fundamentais traduzidas no Brasil. A tese tem como horizonte estabelecer conexões entre ciências e arte, em direção à constituição de uma Antropologia fundamental de base universalista, complexa e transdisciplinar

Because blades in jet engine compressors are subject to dynamic loads based on the engine's speed, it is essential that the blades are properly "tuned" to avoid resonance at those frequencies to ensure safe operation of the engine. The tuning process can be time consuming for designers because there are many parameters controlling the geometry of the blade and, therefore, its resonance frequencies. Humans cannot easily optimize design spaces consisting of multiple variables, but optimization algorithms can effectively optimize a design space with any number of design variables. Automated blade tuning can reduce design time while increasing the fidelity and robustness of the design. Using surrogate modeling techniques and gradient-free optimization algorithms, this thesis presents a method for automating the tuning process of an airfoil. Surrogate models are generated to relate airfoil geometry to the modal frequencies of the airfoil. These surrogates enable rapid exploration of the entire design space. The optimization algorithm uses a novel objective function that accounts for the contribution of every mode's value at a specific operating speed on a Campbell diagram. When the optimization converges on a solution, the new blade parameters are output to the designer for review. This optimization guarantees a feasible solution for tuning of a blade. With 21 geometric parameters controlling the shape of the blade, the geometry for an optimally tuned blade can be determined within 20 minutes.