406 resultados para reconfiguration


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Ce travail de thèse ici proposé a comme but de recherche la production litéraire du poète brésilien Manoel Wenceslau Leite Barros, Manoel de Barros, (1916 Cuiabá-MT) en l articulant avec la reflexion sur le concept de politique de l écrite proposé par le philosophe algérien-français Jacques Rancière (1940 Algiers Algérie). L hypothèse qui se presente est celle sur l écrite poétique de Manoel de Barros dont les ―marques du sensible‖ dans les expériences démocratiques sont perceptibles. Sa production inclue ce que se peut denominer d une micrologie poétique, une reconfiguration du ―partager‖, dans le sense de l élaboration pratiques de l égalité, des pratiques de redistribution et de circulation des voix, instauratrices de la constitution esthétiques des communautés différenciées, considérées comme alternatives, face au modèle de système canonique de la litérature. Au moment que sa fonctionnent comme des formes de subvertions, elles produisent des espaces ou marge d émancipation de l être : lecteur et écrivain, en déclanchant des nouvelles perspectives éthiques et esthétiques. De cette manière, l objectif qui se dessine est ce qui comprend comment se configure la proposition d une politique de l écrite de Manoel de Barros et la façon qu elle se place par rapport à une politique des arts. Pour cela, nous utiliseront comme base la pensée de Jacques Rancière qui se fait remarquer, les dernières années, pour entreprendre une refléxion systématique et lucide par rapport aux relations éxistantes entre esthétique et politique dans la société présente, alié à ce que se défine comme des manières et des formes de penser élaborées par le texte poétique (lui même) de Manoel de Barros et de manière incontinué dans ses entretiens-critiques, plubliées dans des journaux et revues, présentées en vidéos, et nous n oublierons pas non plus des contributions théoriques et des refléxions parvenues de la pensée contemporaine

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Microhabitat and plant structure of seven Batrachospermum populations (four of Batrachospermum delicatulum (= Sirodotia delicatula), one of Batrachospermum macrosporum and two of the 'Chantransia' stage), including the influence of physical variables (current velocity, depth, irradiance and substratum), were investigated in four streams of São Paulo State, southeastern Brazil. The populations of B. delicatulum and the 'Chantransia' stage occurred under very diverse microhabitat conditions, which probably contributes to their wide spatial and seasonal distribution in Brazilian streams. Results suggest branch reconfiguration as a probable mechanism of adaptation to current velocity based on the occurrence of: (i) B. macrosporum (a large mucilaginous form with presumably little ability for branch reconfiguration) under lower current velocity than B. delicatulum; (ii) only dense plants in populations with high current velocities (> 60 cm s-1), whereas 53-77% of dense plants were seen in populations exposed to lower currents (< 40 cm s-1); (iii) positive correlations of plant length with internode length in populations under low current velocities and negative correlation in a population with high velocity (132 cm s-1); and (iv) negative correlations of current velocity with plant diameter and internode length in a population under high flow. This study, involving mainly dioecious populations, revealed that B. delicatulum displayed higher fertilization rates than B. macrosporum. A complementary explanation for a dioecious species to increase fertilization success was proposed consisting of outcrossing among intermingled male and female adjacent plants within an algal spot.

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Network reconfiguration in distribution systems can be carried out by changing the status of sectionalizing switches and it is usually done for loss minimization and load balancing. In this paper it is presented an heuristic algorithm that accomplishes network reconfiguration for operation planning in order to obtain a configuration set whose configurations have the smallest active losses on its feeders. To obtain the configurations, it is used an approached radial load flow method and an heuristic proceeding based on maximum limit of voltage drop on feeders. Results are presented for three hypothetical systems largely known whose data are available in literature and a real system with 135 busses. In addition, it is used a fast and robust load flow which decreases the computational effort.

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This paper deals with a stochastic optimal control problem involving discrete-time jump Markov linear systems. The jumps or changes between the system operation modes evolve according to an underlying Markov chain. In the model studied, the problem horizon is defined by a stopping time τ which represents either, the occurrence of a fix number N of failures or repairs (TN), or the occurrence of a crucial failure event (τΔ), after which the system is brought to a halt for maintenance. In addition, an intermediary mixed case for which T represents the minimum between TN and τΔ is also considered. These stopping times coincide with some of the jump times of the Markov state and the information available allows the reconfiguration of the control action at each jump time, in the form of a linear feedback gain. The solution for the linear quadratic problem with complete Markov state observation is presented. The solution is given in terms of recursions of a set of algebraic Riccati equations (ARE) or a coupled set of algebraic Riccati equation (CARE).

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The city of Lima has undergone serious changes over the past sixty years. Until the middle of the last century, Lima retained an urban structure similar to that built in the 18th century, during the final decades of its colonial period. This reality began to change with the abrupt onset of migration from the mountain ranges to the coast in 1946. However, rather than changes in its urban plan, Lima underwent a ethnic and social reconfiguration that would bring new color and new cultural and behavioral norms to the Peruvian capital. The arrival of migrants to the city caused a conservative reaction in the local elites, but it also sparked a need for the intelligentsia to develop new ways of thinking about the place of migrants in the space of the city, and on the other hand, to create new representations of the city itself. From being a city isolated from the rest of the country, Lima came to live with a range of cultural and ethnic references. It did so, however, without creating greater opportunities for the integration of the masses within the urban and social logic of the city, thus making clear the separation between the aristocracy and the general populace.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Elétrica - FEIS

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Televisão Digital: Informação e Conhecimento - FAAC

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)