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Dissertação(mestrado)-Universidade Federal do Rio Grande, Programa de Pós-Graduação em Engenharia Oceânica, Escola de Engenharia, 2006. / Submitted by Lilian M. Silva (lilianmadeirasilva@hotmail.com) on 2013-04-23T21:28:50Z No. of bitstreams: 1 Estudo da eficiência energetica em sistemas de refrigeracao mecanica que utilizam r 717 contaminado por Água Uma Aplicação Para A Indústria Pesqueira de Rio Grande.pdf: 9060063 bytes, checksum: 062f3d7bf45bc90a87b8e3cd34a178fe (MD5) / Approved for entry into archive by Gabriela Silva da Rosa(gabrielasilvadarosa@gmail.com) on 2013-07-01T21:31:07Z (GMT) No. of bitstreams: 1 Estudo da eficiência energetica em sistemas de refrigeracao mecanica que utilizam r 717 contaminado por Água Uma Aplicação Para A Indústria Pesqueira de Rio Grande.pdf: 9060063 bytes, checksum: 062f3d7bf45bc90a87b8e3cd34a178fe (MD5) / Made available in DSpace on 2013-07-01T21:31:07Z (GMT). No. of bitstreams: 1 Estudo da eficiência energetica em sistemas de refrigeracao mecanica que utilizam r 717 contaminado por Água Uma Aplicação Para A Indústria Pesqueira de Rio Grande.pdf: 9060063 bytes, checksum: 062f3d7bf45bc90a87b8e3cd34a178fe (MD5) Previous issue date: 2006 / Este trabalho aborda, a influência da contaminação por água, sobre a eficiência energética de uma instalação de refrigeração mecânica funcionando com fluido refrigerante R-717. O estudo toma como base as amostras de refrigerante coletadas e as grandezas termodinâmicas levantadas em pesquisa de campo realizadas nos sistemas de refrigeração da indústria pesqueira local. Com as informações obtidas e utilizando o pacote computacional CoolPack, foram calculadas as performances dos ciclos termodinâmicos operando com o fluido anidro e contaminado com água em diversas concentrações. Mostra-se por meio desse estudo, que a contaminação por água, normalmente negligenciada, deve ser considerada como um dos parâmetros mais significativos na avaliação do potencial de economia de energia destas instalações. / This work approaches, the influence of the contamination for water, on the energy efficiency of an installation of mechanical refrigeration working with fluid soda R-717. The study takes as base the soda samples collected and the lifted up thermodynamic greatness in the obtain infomation and using the software CollPack, the perfromances of the thermodynamic cycles were calculted operating with the fluid anhydrous and polluted with water in several concentrations. It shown by middle of that study, that the contamination for water, usually neglectful, it should be considered as one of the most significant parameters in the evaluation of the potential of economy of energy of these facilities.

No description available.

The aim of this master’s thesis is a design and a realization of an interface device for various aircraft buses. The work shows the issue of Aircraft Interface Device and describes the most used types of avionics buses. It deals with the theoretical design of the PCI/104–Express module and is using modularity for maximum configurability of the device. The work also brings the selection of appropriate components and their use in design. The last part describes a firmware architecture.

Réalisant un croisement de regards entre l’Europe et l’Amérique Latine, cette thèse étudie le caractère d’un nouveau type de voie - le boulevard - qui a été redéfini à l’occasion des travaux d’Haussmann à Paris et s’est transformé tout au long de ce dernier siècle et demi. Un nouveau type de boulevard s’affirme ainsi au cours du XXe siècle, caractérisé par une répartition de la chaussée favorisant l’ordonnancement des différentes formes de mobilité en couloirs réservés par fonctions (piétons, vélos, bus, voitures). Ce nouveau boulevard est aussi le reflet d’une stéréotypie dans le projet de la voirie résultant d’un aménagement davantage techniciste de l’infrastructure. Il fait référence à des espaces qui adoptent et adaptent des modèles exogènes sans vraiment réussir à produire des configurations urbaines en accord avec les caractéristiques paysagères identitaires des villes, tout en créant des espaces de voirie fragmentés. Au XXIe siècle, cette configuration a été renforcée par l’introduction des nouveaux dispositifs de bus (BSP, BRT, BHNS). Les exemples du boulevard Magenta à Paris transformé en "espace civilisé" et de la avenida de las Américas à Cali avec l’implantation du BRT MIO illustrent cette problématique. / Taking into account different perspectives from Europe and Latin America through a crossing view methodology, we have studied the birth and transformation of a new type of boulevard developed since Haussmann. This boulevard derives from a roadbed distribution favoring the organization of various forms of mobility into dedicated corridors according to their function (pedestrians, bicycles, buses, cars). It also reflects a form of stereotyping in the urban project, contributing to an even more technical street planning. It refers to a road space pretending to adopt and adapt exogenous models without really succeeding on producing urban configurations in accordance with the city’s particular landscape, whilst creating fragmented road spaces. In the 21st century, this composition has been reinforced by the introduction of new bus devices (own-site bus service, BRT, BHLS). The example of the Magenta Boulevard in Paris transformed into a civilized space and the las Américas avenue in Cali with the introduction of the MIO BRT illustrate this issue.

Après l'arrivée au pouvoir des révolutionnaires cubains en 1959, l'Amérique latine s'insère de plain-pied dans la« guerre froide pour les idées», suscitant un intérêt croissant de la part des deux superpuissances : les États-Unis et l'Union soviétique. Quant à cette dernière, le bouleversement social à Cuba incite le Kremlin à porter un regard intéressé sur l'île des Caraïbes, un pays qui deviendra plus tard, après une phase de divergences (1962-1968), un allié fidèle de Moscou. Mais le rapprochement de l'URSS avec La Havane entraîne également une doctrine spécifique envers d'autres pays du continent latino-américain. C'est le cas du Chili, un État qui, sous la présidence d'Eduardo Frei (1964-1970), noue des accords ambitieux avec l'Est, encourageant des échanges accrus. Cette tendance, interrompue tragiquement suite au coup d'État de Pinochet en septembre 1973, se renforcera après la victoire électorale de Salvador Allende en 197 0. Outre l'essor des relations politiques ou économiques, l'administration soviétique à l'ère de Nikita Khrouchtchev s'efforce de mettre en place une vigoureuse diplomatie culturelle, ce qui se traduira par des interactions grandissantes avec la Cuba castriste et le Chili des années 1960 et 1970. Alors qu'à Santiago, la culture soviétique est appelée à dévoiler un côté positif d'un pays méconnu, à Cuba, elle devient vite un indice des liens privilégiés tissés entre deux États qui font désormais partie du même« camp idéologique». Cependant, les effets que les échanges culturelles produisent ne sont pas les mêmes dans les deux régions analysées, engendrant des représentations sociales hétérogènes, voire ambivalentes, indissociables de chaque contexte. Par le biais d'une perspective comparative, fondée sur les priorités soviétiques à Cuba et au Chili, il est possible de prendre la mesure des spécificités de la politique extérieure du Kremlin en Amérique latine ainsi que des effets variés que la nouvelle proximité provoque. Cette approche nous autorise aussi à constater que les rapports à l'égard d'un État conditionnent souvent la politique menée envers l'autre, érigeant une « logique triangulaire» des relations URSS-Chili-Cuba. / After the Cuban Revolution in 1959, Latin America became a crucial point of the "Cold War for the ideas", generating a growing interest of both United States and Soviet Union. Concerning USSR, social transformation of Cuba encouraged the Kremlin to have an attentive eye on the Caribbean island, a country that will become, after a phase of divergences (1962-1968), a faithful Moscow's ally. But the rapprochement between USSR and Havana also foster a specific doctrine with regard to other Latin American countries. It was the case of Chile, a state that during Eduardo Frei's administration (1964-1970) signed ambitious agreements with the East, encouraging bilateral exchanges. This trend, brutally interrupted by Pinochet’s coup d'état in September 1973, strengthened after the election of Salvador Allende in 1970. Beyond the growth of political and economic relations, Khrushchev’s administration made an effort to consolidate a powerful cultural diplomacy, which will result in increasing interactions with Castro’s Cuba and Chile of the 1960s and the early 1970s. While in Santiago, Soviet culture was supposed to unveil a positive facet of a largely ignored country, in Cuba, it became rapidly a mark of the privileged links built between two states belonging to the same "ideological camp". Nonetheless, the effect of cultural exchanges was not the same in the different areas analyzed, engendering heterogeneous and even ambivalent social representations that were deeply associated to each context. On the basis of a comparative approach, focused on Soviet priorities in Cuba and Chile, it is possible to measure the nature of Kremlin's foreign policy in Latin America, as well as the various consequences of the new international proximity. This standpoint also allows us to remark that relations with one state may determine the policy towards other nations, configuring a "triangular articulation" of Soviet-Chilean-Cuban relations.