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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.
1

Banrisul: do PROES ao IPO com governança corporativa

Decotelli, Carlos Alberto January 2008 (has links)
Made available in DSpace on 2009-11-18T19:00:53Z (GMT). No. of bitstreams: 1 decotelli.pdf: 363419 bytes, checksum: c410e31b8ec8fcb3a299a7b8cd19aa7b (MD5) Previous issue date: 2008 / The scene prevalecente, in this work was to analyze the capacity of BANRISUL - Bank of the State of the Rio Grande Do Sul, as bank of public control, was assumen of the continued increase of the profitability of the Brazilian banking sector, remaining itself as a brought up to date financial institution tecnologicamente and managemental structuralized by mechanisms of brought up to date taking of decision and permanently revised in compatibility with the increasing instabilidades imposed for the incited competition of the banking sector in adequacy with the macroeconomic volatillidades. On the basis of the extremely positive performance in the analyzed period enters 1997 the 2007, the commercial strategy remains focada in the constant improvement of the rendering of services and in the growth of the credit average small the physical people and the e companies. The abrangência of the attendance points and the ample base of customers are aggregate advantages to an exclusive differential: the Banricompras, the biggest card of proper mark of Latin America. Stronger and income-producing, with an adequate and transparent management, the BANRISUL follows in propósito de to gain position of prominence in the national economic-financial scene. / O cenário prevalecente, nesse trabalho é o de analisar a capacidade do BANRISUL - Banco do Estado do Rio Grande do Sul, em sendo banco de controle público, apropriou-se de continuado aumento de lucratividade e eficiência na gestão empresarial; mantendo-se como uma instituição financeira atualizada tecnologicamente e estruturada por mecanismos de tomada de decisão e permanentemente revisados em compatibilidade com as crescentes instabilidades impostas pela acirrada concorrência do setor bancário em adequação às volatilidades macroeconômicas. Com base no desempenho extremamente positivo no período analisado entre 1997 a 2007, a estratégia como empresa permanentemente engajada na busca do constante aprimoramento da prestação de serviços e no crescimento do crédito a pessoas físicas e jurídicas. A abrangência dos pontos de atendimento e a ampla base de clientes são vantagens agregadas a um diferencial exclusivo: o Banricompras, o maior cartão de marca própria da América Latina. Mais forte e rentável, com uma gestão adequada e transparente, o BANRISUL segue no propósito de ganhar posições de destaque no cenário econômico-financeiro nacional.
2

Development and study of microdischarge arrays on silicon / Développement et étude de matrices microdécharge sur silicium

Kulsreshath, Mukesh Kumar 21 January 2013 (has links)
L'objectif de cette thèse est de fournir une meilleure compréhension des différents phénomènes physiques liés aux microplasmas/microdécharges. Pour cela, des matrices de microréacteurs sur silicium ont été étudiées. De nombreuses configurations ont été construites de manière à analyser l’influence de chaque paramètre physique sur le fonctionnement de ces dispositifs. Le présent travail porte sur l'élaboration et la caractérisation de dispositifs micro-décharge à base de silicium. Dans ce travail de thèse, les régimes de courant continu (DC) et de courant alternatif (AC) sont étudiés en utilisant des configurations de décharges différentes. Pour la fabrication de ces réacteurs, nous sommes partis de wafers de Silicium que nous avons structurés et traités en salle blanche. La technologie de fabrication utilisée est compatible avec les méthodes de fabrication de dispositifs CMOS. Les microréacteurs sont constitués d’électrodes de nickel et de silicium séparés par une couche diélectrique de SiO2 de 6 μm d’épaisseur. L’épaisseur du diélectrique est ici beaucoup plus faible que celle des microréacteurs étudiés jusqu’à présent. Les dispositifs sont constitués de cavités de 25 à 150 microns de diamètre. Les essais de microdécharge ont été effectués dans des gaz inertes à une pression comprise entre 100 et 1000 Torrs. Nous avons d’abord étudié les phénomènes d’allumage et d’extinction à partir de microdispositifs monocavité en alumine. Puis, nous avons étudié le fonctionnement en DC/AC de microréacteurs en silicium comportant un nombre de cavité compris entre 1 et1024. Les caractéristiques des microdécharges ont été étudiées grâce à des mesures électriques, des mesures de spectroscopie d'émission optique (OES), de spectroscopie d’absorption à diode laser (DLAS) et de spectroscopie d'émission optique résolue en temps (PROES). Ces différents diagnostics nous ont permis de mettre en évidence les phénomènes d’allumage, d’extinction, d’instabilité et les mécanismes de défaillance de nos microdispositifs. Ce travail de thèse a permis de tester les performances et les limites technologiques des matrices de microdécharges sur silicium. Une attention particulière a été portée sur leur durée de vie. / The objective of this thesis is to provide a better understanding of various physical phenomena related to microplasmas/microdischarges. For this purpose, arrays of microreactors on silicon were studied. Different array configurations were fabricated to analyse the influence of each parameter on the physical operation of these devices. The present work focuses on the development and characterisation of micro-discharge devices based on silicon. In this thesis, direct current (DC) and alternating current (AC) regimes are studied using different discharge configurations. For the fabrication of these reactors, Silicon wafers are structured and processed in a cleanroom. Fabrication technology used is compatible with the CMOS technology. The microreactors are fabricated with nickel and silicon electrodes, separated by a dielectric layer of SiO2 with a thickness of 6 μm. The thickness of the dielectric is much lower here than the microreactors studied so far. The devices consist of cavities with 25 to 150 μm in diameter. Experiments of the microdischarges are performed in inert gases at a pressure between 100 and 1000 Torr. We first studied the phenomena of ignition and extinction for the microdevices based on alumina. Then, we studied the microreactors based on silicon containing 1 to 1024 cavities under DC and AC regimes. Characteristics of microdischarges were studied by electrical measurements, measurements of optical emission spectroscopy (OES), laser diode absorption spectroscopy (DLAS) and phase resolved optical emission spectroscopy (PROES). These diagnostics allowed us to investigate the phenomena of ignition, extinction, instability and failure mechanisms of the microplasma devices. This thesis work allowed testing the performance and technological limitations of the silicon based microdischarge arrays. Particular attention was paid to their life time.

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