Neste trabalho estudamos a aplicabilidade dos conceitos de autoconsistência de R. Hagedorn e de não-extensividade de acordo com a estatística de Tsallis. Estes dois conceitos podem ser associados de acordo com a teoria autoconsistente não-extensiva. A análise dos dados de distribuição de momento tranversal e do espectro de massa de hádrons permite testar a aplicabilidade desses conceitos, e neste trabalho desenvolvemos esta análise para dados obtidos em colisões pp em energias ultrarelativísticas. Os resultados obtidos nessas análises confirmam a idéia de Hagedorn da existência de uma temperatura limite para sistemas hadrônicos e também é observado uma ótima descrição do espectro de massa hadrônico pela da TACNE. Parte dos resultados deste trabalho está publicada na Physical Review D 87, 114022 (2013). / In this work, we study the applicability of the concepts of self-consistency by R. Hagedorn and non-exntensivity according to the Tsallis statistic. These two concepts can be associeted in accordance with the self-consistency non-extensive theory. The analysis of distribution data of transverse momentum and mass spectrum allows hadron test applicability of these concepts, and in this work we developed this analysis for data obtained from pp collisions at ultrarelativistic energies. The results of these analysis support the ideia of the existence of a Hagedorns temperature threshold for hadronic systems and a very good description of the hadroic mass spectrum by the self-consistency non-extensive theory is also verified. Part of this work is published in Physical Review D 87, 114022 (2013).

This master’s report presents an examination of hybridic religious practices, ritual and iconography as depicted in Jessica Hagedorn's Dogeaters and Ana Castillo's So far from God. In particular, it treats the role of religious hybridity--the imbrication of folkloric, indigenous and secular traditions with orthodox Catholicism--as an important source of cultural, political and social resistance within postcolonial Chicana/o and Filipino communities that are still dealing with, or attempting to escape their colonial pasts. / text

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Cette thèse traite des applications de la Théorie des Cordes aux problèmes de la cosmologie et de la phénoménologie. En particulier, nous étudions des problèmes liés à la description de l'état initial de l'Univers, en utilisant les méthodes perturbatives de la Théorie des Cordes. Après une présentation des outils nécessaires, nous présentons une nouvelle symétrie de dégénérescence spectrale entre les états massifs bosoniques et fermioniques (appelée symétrie MSDS), se trouvant aux points particuliers de l'espace des modules. Nous étudions les déformations marginales des vides MSDS et mettons en évidence leur interprétation thermique, et leur lien avec la résolution des divergences de Hagedorn de la thermodynamique des cordes. L'évolution cosmologique d'un vide thermique bidimensionnel est présentée. On démontre que la prise en compte des tous les degrés de liberté au niveau des cordes mène à l'absence des singularités gravitationnelles, dans un traitement entièrement perturbatif.

A computer program has been written to perform production optimization in submersible pump lifted wells.Production optimization was achieved by the principles of Nodal Analysis Technique which was applied between the reservoir and the wellhead ignoring the surface choke and separator.computer program has been written according to two lifting environment,which are:pumping with only liquid,pumping with both liquid and gas.

Zugl.: Bielefeld, Universiẗat, Diss.

Zugl.: Madison, Univ. of Wisconsin, Diss.

Ultra-relativisitic heavy ion collisions produce quark gluon plasma-a hot and dense soup of deconfined quarks and gluons akin to the early universe. We study two models in the context of these collisions namely, Polyakov Quark Meson Model (PQM) and Hadron Resonance Gas Model (HRGM).The PQM Model provides us with a simple and intuitive understanding of the QCD equation of state and thermodynamics at non zero temperature and baryon density while the HRGM is the principle model to analyse the hadron yields measured in these experiments across the entire range of beam energies. We study the effect of including the commonly neglected fermionic vacuum fluctuations to the (2+1) flavor PQM model. The conventional PQM model suffers from a rapid phase transition contrary to what is found through lattice simulations. Addition of the vacuum term tames the rapid transition and significantly improves the model’s agreement to lattice data. We further investigate the role of the vacuum term on the phase diagram. The smoothening effect of the vacuum term persists even at non zero . Depending on the value of the mass of the sigma meson, including the vacuum term results in either pushing the critical end point into higher values of the chemical potential or excluding the possibility of a critical end point altogether. We compute the fluctuations(correlations) of conserved charges up to sixth(fourth) order. Comparison is made with lattice data wherever available and overall good qualitative agreement is found, more so for the case of the normalised susceptibilities. The model predictions for the ratio of susceptibilities approach to that of an ideal gas of hadrons as in HRGM at low temperatures while at high temperature the values are close to that of an ideal gas of massless quarks. We examine the stability of HRGMs by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. We model the decays of resonances and investigate the ratios of particle yields in heavy-ion collisions. We find that extending these models do not have much effect on hydrodynamics but the hadron yield ratios show better agreement with experiment. In principle HRGMs are internally consistent up to a temperature higher than the cross over temperature in QCD; but by examining quark number susceptibilities we find that their region of applicability seems to end even below the QCD cross over.