Ce travail examine le problème de l'exploration, tel qu'il se présente dans les chroniques de voyage qui ont forgé la cartographie du monde moderne entre la Renaissance et les Lumières, en privilégiant l'analyse des enjeux épistémologiques entre le nouveau et l'inconnu. A travers une lecture de ce corpus portant sur l'Amérique et des spéculations géographiques et politiques sur le continent austral, il montre, d'une part, que dans ces textes un régime de spatialité trouve son instance inaugurale ; de l'autre, que l'histoire de celui-ci est aussi celle de la philosophie elle-même, pour autant qu'elle s'est conçue sur le modèle d'une exploration dans la tradition baconienne jusqu'au XVIIIème siècle chez D'Alembert. Il montre l'ancrage historique des images géographiques ainsi que la continuité entre la production de savoir et la production d'un espace à découvrir au sein des voyages d'exploration, face auxquels, contrairement à la métaphorologie blumenbergienne, l'archéologie foucaldienne trouve une limite. Puis, il interroge l'horizon de sens anthropologique de l'exploration, en particulier à travers la polémique de la présence d'une espèce d'hommes géants au Nouveau Monde, et examine l'appropriation scientifique de cette figure littéraire, dans l'histoire naturelle d'Acosta à Buffon. Enfin, après un regard sur le rapport ambigu entre les usages de la thèse du vieillissement du monde et l'ouverture épistémologique des objets possibles de l'exploration, il propose une analyse de la centralité de la gigantum demonstratio au sein du programme philosophique de Vico. / This study examines the issue of exploration, as it stands in the travel chronicles that have forged modern world cartography between the Renaissance and the Enlightenment, favouring the analysis of epistemological questions between the new and the unknown. Through an examination of this corpus about America, and the geographical and political speculation about the Southern Land, it shows, on the one hand, that a regime of spatiality begins with these texts; on the other, that its history is also the history of philosophy, as far as it conceived itself on the model of exploration in the baconian tradition until D’Alembert in the 18th century. It identifies the historical foundation of geographical images used in the modern thought, as well as continuity among knowledge production and the production of a space to discover by exploration travels, about which, unlike Blumenberg’s metaphorology, Foucault’s archaeology founds a limit. Then, it questions the exploration’s anthropological horizon of meaning, particularly by the controversy of a giant human species in the New World, and examines the scientific appropriation of this literary figure in the natural history from Acosta to Buffon. Lastly, after a look on the ambiguous relation between the ageing world thesis and the epistemological openness of possible objects of exploration, it proposes an analysis of the importance of the gigantum demonstratio in Vico’s philosophical program.

Submitted by Alyson Bueno Francisco null (33432427808) on 2017-08-11T12:14:51Z No. of bitstreams: 1 Tese de doutorado A B Francisco.pdf: 10647120 bytes, checksum: b285cedbc09019fbb08981d29c331f11 (MD5) / Rejected by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br), reason: Solicitado pelo autor. on 2017-08-16T17:08:43Z (GMT) / Submitted by Alyson Bueno Francisco null (33432427808) on 2017-08-16T17:31:14Z No. of bitstreams: 1 Tese A B Francisco.pdf: 10686416 bytes, checksum: c31c9ad77d0f43445d40956e5016092b (MD5) / Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-08-23T14:29:47Z (GMT) No. of bitstreams: 1 francisco_ab_dr_prud.pdf: 10686416 bytes, checksum: c31c9ad77d0f43445d40956e5016092b (MD5) / Made available in DSpace on 2017-08-23T14:29:47Z (GMT). No. of bitstreams: 1 francisco_ab_dr_prud.pdf: 10686416 bytes, checksum: c31c9ad77d0f43445d40956e5016092b (MD5) Previous issue date: 2017-07-31 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Esta tese apresenta como objetivo realizar uma análise espacial e temporal da boçoroca do Córrego do Grito, localizada na área do perímetro urbano da cidade de Rancharia-SP e apresentar as propostas de controle desta erosão periurbana. Esta boçoroca apresenta indícios de desenvolvimento que remontam a década de 1960, episódios recentes de danos gerados à infraestrutura urbana e presença de processos erosivos ativos nas margens. Para apresentar uma análise geográfica deste caso de processo erosivo são apresentados aspectos do histórico de uso da terra no município de Rancharia e aspectos físico-geográficos e as mudanças de uso da terra na microbacia do Córrego do Grito e em escala de detalhe as informações cartográficas sobre a boçoroca. Diante deste caso de processo erosivo que se perpetua por cinco décadas, nesta tese são apresentadas informações geográficas detalhadas da boçoroca a partir de dados coletados em levantamentos topográficos com equipamentos geodésicos. Durante vinte e quatro meses foi realizado um monitoramento topográfico de parcelas da boçoroca, onde foi constatada uma erosão de rebordo superior a 1,5 m em quatro pontos e uma média de 0,85 m, em toda a parcela monitorada ocorreu uma perda de 305,9 metros quadrados de área. Em relação às propostas de controle do processo erosivo, foram implantados barramentos com fibra vegetal (Bambusa bambos L.) numa parcela experimental com o monitoramento do nível de solo por meio de pinos de erosão, e a partir de uma análise comparativa sendo constatada uma média de movimentação de solo superior na parcela experimental sem o uso de barramentos. A partir das mensurações dos níveis de movimentação do solo e de dados de densidade do solo foram apresentadas estimativas de perda de solo nas parcelas experimentais. Na área da parcela experimental com barramentos foram plantadas espécies vegetais nativas com o intuito de contribuir na recuperação da área degradada. Neste sentido, a partir de informações geográficas detalhadas sobre a área degradada pela boçoroca do Córrego do Grito, a tese visa contribuir no planejamento de futuras medidas para uma recuperação efetiva desta área em Rancharia. A partir da proposta empírica apresentada nesta tese, são apresentadas formas de se repensar sobre a filosofia de Francis Bacon e suas contribuições na Geografia. / This thesis aims to perform a spatial and temporal analysis of the gully of Grito Stream, located in the urban perimeter of the city of Rancharia, and present the proposals to control this peri-urban erosion. This gully presents evidence of development dating back to the 1960s, recent episodes of damage to urban infrastructure and the presence of active erosive processes at the banks. To present a geographic analysis of this case of erosion process are presented aspects of land use history in the municipality of Rancharia and physical-geographic aspects and land use changes in the watershed of the Grito Stream and in detail scale the cartographical information on the gully. In view of this case of erosive process that is perpetuated for five decades, in this thesis detailed geographic information of the gully is presented from data collected in topographic surveys with geodesic equipment. For twenty-four months, a topographic monitoring of borehole plots was carried out, where a ridge erosion greater than 1.5 m was observed in four points and an average of 0.85 m, in all the monitored plot there was a loss of 305.9 square meters of area. In relation to the erosion process control proposals, buses with plant fiber (Bambusa bambos L.) were implanted in an experimental plot with soil level monitoring by means of erosion pins, and from a comparative analysis there is a greater upper soil movement in the experimental plot without the use of buses. Based on the measurements of soil movement levels and soil density data, estimates of soil loss were presented in the experimental plots. In the area of the experimental plot with barriers native plant species were planted with the intention of contributing to the recovery of the degraded area. In this sense, based on detailed geographic information on the area degraded by the gully of the Grito Stream, the thesis aims to contribute in the planning of future measures for an effective recovery of this area in Rancharia. From the empirical proposal presented in this thesis are presented ways to rethink the philosophy of Bacon and his contributions on Geography. / FAPESP: 2013/05664-4

Made available in DSpace on 2013-08-07T18:45:42Z (GMT). No. of bitstreams: 1 000389377-Texto+Completo-0.pdf: 462663 bytes, checksum: 4d98d02b822368406c8a666a0825a561 (MD5) Previous issue date: 2006 / The columnist that created polemic as a primordial aim is a common journalism’s character. It is unquestionable the impact of polemic over the public, and this can be expressed by the observation of the correlation between the topics in focus in the column and readers’ letters. The main objective of this study is analyze the polemic articulation by columnist, with the linguistic and communication theoretical presuppositions. Further than that, topics specifics of journalism are discussed through the practice of two brazilian polemists, Paulo Francis and Diogo Mainardi. / O cronista que pauta sua atuação pela criação de polêmicas é uma figura já cativa no jornalismo. É inegável o fascínio exercido por esse personagem, expresso no agendamento de temas por ele sustentados, que reaparecem nas correspondências do público leitor. Este trabalho busca analisar a articulação da polêmica por cronistas, partindo de pressupostos teóricos da lingüística e da comunicação. São também aprofundados temas específicos do jornalismo para a observação da atuação de dois polemistas brasileiros, Paulo Francis e Diogo Mainardi.

A presente dissertação tem como objetivo propor uma via de acesso aos diários de Francis Pelichek que atualize as discussões acerca do estatuto deste objeto no contexto da história da arte no Rio Grande do Sul, retirando-o de sua posição estanque dentro da história. Cientes da heterogeneidade de seus registros e de sua condição simultânea de documento e obra de arte, propomos problematizar o objeto, tanto como obra como quanto documento e aproximá-lo da ideia de arquivo, tendo como horizonte as ideias de Michel Foucault e Jacques Derrida sobre o termo “arquivo”. Para tanto, faz-se necessária uma profunda análise dos registros que compõem os diários, bem como a articulação entre o objeto e os arquivos pessoais de Pelichek, a partir da pesquisa de campo no Arquivo Histórico do Instituto de Artes da UFRGS. Buscamos, ao final deste trabalho, ao menos ter estabelecido questões de base para futuras análises dos diários sob diferentes pontos de vista e esperamos que nosso empenho em movimentar este objeto possibilite maiores aprofundamentos sobre cada um de seus elementos de registro. / This dissertation aims to propose a means of access to the diaries of Francis Pelichek which updates discussions concerning the status of this object in the context of art history in Rio Grande do Sul, removing it from its sealed position within history. Aware of the heterogeneity of its records and its simultaneous condition of document and work of art, we propose to problematize the object, as much as a work of art and document and bring it closer to the idea of file, having as horizon the ideas of Michel Foucault and Jacques Derrida on the term "file". Therefore, it is necessary a deep analysis of the records that compose the diaries, as well as the link between the object and the personal archives of Pelichek, from field research at the Historical Archive of the Art Institute of UFRGS. We seek, at the end of this work, at least to have established a basis for future diaries’ analysis from different points of view and we hope that our efforts to move this object enable more insights on each of its elements of record.

abstract: This dissertation examines songs, sticks, and stories pertaining to Tohono O'odham pilgrimages to Magdalena, Sonora, Mexico, the home of their patron saint, Saint Francis. In the sense that Tohono O'odham travel to Magdalena in order to sustain their vital and long-standing relationship with their saint, these journeys may be understood as a Christian pilgrimages. However, insofar as one understands this indigenous practice as a Christian pilgrimage, it must also be noted that Tohono O'odham have made Christianity their own. The findings show that Tohono O'odham have embedded, or emplaced, Christianity within their ancestral landscapes, and that they have done so in a variety of ways through songs, staffs, and stories. This work emphasizes connections between O'odham processes of producing places and persons. Songs associated with the journey to Magdalena, which contain both geographical and historical knowledge, foreground the significance of place and the movements of various persons at the places mentioned within them. The staffs of O'odham walkers, like other sticks, similarly contain both geographical and historical knowledge, evoking memories of past journeys in the present and the presence of Magdalena. Staffs are also spoken of and treated as persons, or at least as an extension of O'odham walkers. O'odham stories of good and bad walkers illustrate contested O'odham ideologies of socially sanctioned movements. Finally, this dissertation concludes by demonstrating some of the ways in which O'odham senses of their own history diverge from academic models of Tohono O'odham history and the history of Christianity in the Americas. / Dissertation/Thesis / Ph.D. Religious Studies 2013

A presente dissertação tem como objetivo propor uma via de acesso aos diários de Francis Pelichek que atualize as discussões acerca do estatuto deste objeto no contexto da história da arte no Rio Grande do Sul, retirando-o de sua posição estanque dentro da história. Cientes da heterogeneidade de seus registros e de sua condição simultânea de documento e obra de arte, propomos problematizar o objeto, tanto como obra como quanto documento e aproximá-lo da ideia de arquivo, tendo como horizonte as ideias de Michel Foucault e Jacques Derrida sobre o termo “arquivo”. Para tanto, faz-se necessária uma profunda análise dos registros que compõem os diários, bem como a articulação entre o objeto e os arquivos pessoais de Pelichek, a partir da pesquisa de campo no Arquivo Histórico do Instituto de Artes da UFRGS. Buscamos, ao final deste trabalho, ao menos ter estabelecido questões de base para futuras análises dos diários sob diferentes pontos de vista e esperamos que nosso empenho em movimentar este objeto possibilite maiores aprofundamentos sobre cada um de seus elementos de registro. / This dissertation aims to propose a means of access to the diaries of Francis Pelichek which updates discussions concerning the status of this object in the context of art history in Rio Grande do Sul, removing it from its sealed position within history. Aware of the heterogeneity of its records and its simultaneous condition of document and work of art, we propose to problematize the object, as much as a work of art and document and bring it closer to the idea of file, having as horizon the ideas of Michel Foucault and Jacques Derrida on the term "file". Therefore, it is necessary a deep analysis of the records that compose the diaries, as well as the link between the object and the personal archives of Pelichek, from field research at the Historical Archive of the Art Institute of UFRGS. We seek, at the end of this work, at least to have established a basis for future diaries’ analysis from different points of view and we hope that our efforts to move this object enable more insights on each of its elements of record.

Orientador: Roberto Romano / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas / Made available in DSpace on 2018-08-11T13:26:21Z (GMT). No. of bitstreams: 1 Pires_BrunaTorlay_M.pdf: 872423 bytes, checksum: be8c8d08a94b8036f9de854463720614 (MD5) Previous issue date: 2008 / Resumo: Este trabalho procura assinalar traços da filosofia de Francis Bacon na Enciclopédia francesa do século XVIII. Estes traços se manifestam nas teses que defendem o intercurso entre avanço técnico e progresso do conhecimento, e o ideal de ciência como conquista indefinida que escapa ao gênio individual, e sobrevive como patrimônio comum da humanidade. Compreensivamente, mostra que o ¿utilitarismo¿ de Francis Bacon e dos enciclopedistas na verdade se fundamenta na idéia capital de que a existência produz-se mediante engenho / Abstract: This work search after some traces of Francis Bacon¿s thought in eighteenth century¿s French Encyclopaedia. These traces are manifest on the thesis that defend the intercourse between technical improvement and advancement of learning, and the ideal of science as an undefined acquisition not due to individual genius, but thought of as mankind¿s common inheritance. As a whole, it points that Bacon¿s and enciclopaedists¿ ¿utilitarianism¿ is in fact grounded on the capital idea that existence is made through ingenuity / Mestrado / Filosofia / Mestre em Filosofia

Orientador : Paulo Roberto Ottoni / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem / Made available in DSpace on 2018-08-03T13:31:22Z (GMT). No. of bitstreams: 1 Barbosa_RoselideFatimaDiasAlmeida_M.pdf: 4551264 bytes, checksum: 6e91dce27c3aca50483a98acdce5a886 (MD5) Previous issue date: 2003 / Resumo: Neste estudo proponho traduções de alguns textos do poeta francês Francis Ponge. Nessas traduções procuramos analisar certas tensões latentes no interior da língua, um certo jogo que o autor autoriza entre a objeto e a língua, nomeado de objogo. Buscando exemplificar esse jogo na tradução, nos deparamos com o double bind, entendido a partir de Jacques Derrida não somente como o convívio simultâneo entre a necessidade do acontecimento da tradução e do intraduzível, mas também como potencial criador. Entre o traduzível e o intraduzível a tradução acontece mostrando sua plural idade, sua eterna renovação, um placé en abíme de múltiplas escolhas. Escolhas que ilustram o objogo, exemplificado neste trabalho pela tradução de textos de Ponge, alguns deles apresentando vários pontos de vista de um objeto. Com a prática da tradução, por vezes plural (mais de uma tradução para um mesmo texto), acontece uma multiplicação de pontos de vista que estabelecem uma complementaridade e uma contaminação entre as línguas, o que pode ser visto em alguns exercícios de tradução e comentários que fizemos. Concluímos que a tradução se revela como trabalho a partir de uma pluralidade de textos (e de línguas), que também se revela para outros (e outras) infinitamente. Esse potencial criador suscitado pelo double bind gera assim uma tensão que é fonte de criação: a partir do in-traduzível se dá a tradução. O double bind, agora entre o objeto e a linguagem, faz e é parte da obra pongiana. A tradução encerra assim todos os aspectos relevantes do objogo literário / Mestrado / Tradução / Mestre em Linguística Aplicada

No description available.

Hydroelectricity plays an important role to balance the stability of grid network.  In order to improve the stability of presently high loaded grids, hydropower plants are being operated over a wide range of operations and experiencing frequent start-stop, load rejection, and load acceptance. The turbines need to sustain sudden change in their operating condition to balance the grid frequency. Francis turbines have been widely used because of their wider operating range and higher stability in operation during rapid load variation. This has resulted in severe damage to the turbines as they are not normally designed to operate under such transient conditions. Several low and high frequency pressure fluctuations prevail during transients operating conditions. Generally, wall pressure measurements are performed which may not provide sufficient information to investigate the flow instabilities related to these fluctuations. Thus, the main objective of the present work is to simplify and perform optical measurements in a turbine during transient operating conditions to investigate the flow field. The measurements have been performed at the Water Power Laboratory using a high head model Francis turbine. The turbine is a 1:5.1 scale down model of a prototype operating at the Tokke Power Plant, Norway. The model runner diameter, net head, and discharge at the best efficiency point (BEP) were 0.349 m, 12 m, and 0.2 m3 s-1, respectively. A total ten pressure sensors were mounted at different locations namely, turbine inlet, vaneless space, and draft tube. The data were acquired at a sampling rate of 5 kHz. The instruments and sensors have been calibrated according to guidelines available in IEC standards. The determined total uncertainty in the measurement of hydraulic efficiency was ±0.15% at BEP condition. The velocity measurements in the draft tube cone were performed using a 2D PIV system and the images were sampled at a rate of 40 Hz.      Steady state measurements were carried out considering the realistic design and off-design operating conditions of the prototype turbine. Therefore, the angular speed of the runner was maintained constant for all steady state conditions during the measurements. The maximum hydraulic efficiency (92.4%) was observed at nED = 0.18, QED = 0.15, and a = 9.8º, which is named BEP. It is observed that the turbine experiences significant pressure fluctuations at the vaneless space, runner, and the draft tube. The fluctuations due to rotor-stator interaction (RSI) were observed to be most dominating at high load condition, however, fluctuations due to the rotating vortex rope (RVR) at part load (PL) condition. Two different modes (synchronous and asynchronous) modes of vortex rope are observed at PL condition of the turbine. An asymmetry in the flow leaving the runner was detected at both design and off-design conditions, with a stronger effect during off-design operating condition. Numerical simulations of the model turbine were carried out at PL operating condition. The simulations were performed using two turbulence models, standard k-ε and SST k-ω, with high-resolution advection scheme. The numerical pressure values obtained with both standard k-ε model and SST k-ω showed a small difference with the experimental values. The amplitudes of numerical pressure values were higher (~2.8%) in the vaneless space and lower (~5.0%) in the draft tube than the experimental values. The frequencies of the RSI and RVR were well captured in the turbine but the amplitudes were overestimated.   During load rejection from BEP to PL, the plunging mode of the vortex rope was observed to appear first in the system than that of the rotating mode. Whereas during the load acceptance from PL to BEP, both the modes were observed to disappear simultaneously from the system. In the velocity data, the axial velocity only contributed to the development of the plunging mode and radial velocity to the rotating mode. The region of low velocity, stagnation point, flow separation, recirculation, oscillating flow and high axial velocity gradients were well captured in the system during the transients. The induced high-velocity gradients during the load acceptance from BEP to HL was observed to develop a vortex core in the draft tube. During startup and shutdown, the guide vanes angular position was moved from one to another steady state condition to achieve the minimum load condition of the turbine. At this condition, the generator of the turbine was magnetized at the synchronous speed during startup and shutdown, respectively. The frequency of wave propagation was observed to vary with the runner angular speed during startup and complete shutdown of the turbine. Comparatively high-pressure fluctuations in the draft tube were observed during the guide vane movement from the high discharge conditions. Some unsteady phenomena such as the formation of dead velocity zone, backward flow, and flow oscillations were observed during startup and shutdown of the turbine.   The current work has been also used to continue a series of workshops, i.e., Francis-99. The first workshop was held on December 2014 with the cooperation of LTU and NTNU. The measurements performed in this work were used for the second workshop which was held on December 2016. The investigations presented in this thesis will be further explored in the third workshop scheduled for December 2018.