Describe the topology of the polar for an irreducible curve germ of gender one and generic, we show that are non degenerate Newton. / Describiremos la topología de la polar de un germen de curva irreducible, genérica y de género uno. Para lo cual mostraremos que polar de una curva genérica en K(n;m) es Newton no degenerada.

Orientador: Antonio Carlos Bannwart / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências / Made available in DSpace on 2018-08-27T04:22:37Z (GMT). No. of bitstreams: 1 BarbosaNeto_AntonioMarinho_M.pdf: 2354581 bytes, checksum: dada46fe50ab798d217e21bcad15eeb1 (MD5) Previous issue date: 2015 / Resumo: Fluidos de petróleo, incluindo gás, condensado e óleo leve, são misturas complexas de hidrocarbonetos. O conhecimento sobre o comportamento de fases destas misturas é de interesse para a indústria de petróleo, desde o reservatório, produção, transporte, até o processamento e refino de petróleo. Além disso, pacotes termodinâmicos computacionais para predizer o comportamento de tais misturas são de grande interesse nesta indústria. Neste sentido, uma ferramenta computacional para prever com precisão as propriedades termodinâmicas utilizando cálculos de equilíbrio de fases pode desempenhar um papel importante para aplicações de projeto e operações de campo. Equações de estado cúbicas tem sido amplamente utilizada para predizer o comportamento de fases e propriedades volumétricas de fluidos de petróleo devido a sua simplicidade e alto desempenho computacional. Diante deste contexto, o presente trabalho teve como objetivo principal desenvolver um simulador PVT composicional, de fácil manuseio, porém completo, capaz de avaliar o comportamento volumétrico e de fases de fluidos de petróleo em diferentes condições operacionais (P, T) a partir da modelagem do equilíbrio líquido-vapor e do equilíbrio líquido-líquido-vapor. A ferramenta computacional foi desenvolvida na linguagem de programação Visual Basic Applications (VBA) em aplicativo Excel. Uma interface gráfica foi construída em aplicativo Excel. O programa, denominado PVTpetro, consiste basicamente em três módulos computacionais e suas funções auxiliares. O módulo de cálculo de flash (P, T) 2 fases isotérmico para misturas de hidrocarbonetos consiste no equilíbrio líquido-vapor (ELV) para sistemas óleo-gás multicomponentes. O módulo de cálculo de flash (P, T) 3 fases isotérmico avalia sistemas envolvendo óleo, água e gás (OWG). E, o módulo de cálculo de propriedades volumétricas de fluidos de petróleo que calcula o peso molecular, o volume e a massa específica das fases existentes no sistema. A ferramenta foi validada via comparação entre os resultados de pacotes termodinâmicos comerciais (Wimprop, Hysys, COMThermo) e os do programa desenvolvido. Os resultados gerados pelo PVTpetro foram avaliados através do cálculo do desvio relativo em relação às respostas dos softwares comerciais. Desta forma, verificou-se para o módulo de cálculo flash (P, T) 2 fases que os valores de desvio em relação ao Wimprop e Hysys foram inferiores a 1% para os estudos realizados. Enquanto que, para o módulo de cálculo flash (P, T) 3 fases os valores de erro relativo se concentraram na faixa de 0 ¿ 5% quando comparados com os pacotes termodinâmicos Hysys e COMThermo. De uma maneira geral, os resultados gerados pelo PVTpetro apresentaram-se satisfatórios em todos os cálculos propostos. Na validação do módulo de cálculo das propriedades volumétricas, feita de forma qualitativa, observou-se que o comportamento das propriedades em função da pressão e em diferentes temperaturas, gerado pelo PVTpetro, reproduziram as curvas fornecidas pelo Hysys, em todas as condições investigadas. Portanto, além de se apresentar confiável em seus cálculos o PVTpetro mostrou ser de fácil manuseio e intuitivo para o usuário, facilitando assim o trabalho em vários casos / Abstract: Petroleum fluids, which include gas, condensate and light oil, are complex hydrocarbons mixtures. There is a great deal of interest in the oil industry in computational thermodynamic packages able to predict the phase behavior of such mixtures, from the reservoir, production, transportation until the oil processing and refining. In this sense, a computational tool that accurately predicts thermodynamic properties using phase equilibrium calculations have an important role in designing applications and field operations. Cubic equations of state have been widely used to predict the phase behavior and bulk properties of petroleum fluids due to its simplicity and high computational performance. This study focused on developing a PVT compositional simulator, easy to use, able to assess the bulk properties and phase behavior of petroleum fluids at different operating conditions (P, T) from the modeling of the vapor-liquid equilibrium (VLE) and the vapor-liquid-liquid equilibrium (VLLE). The computational tool was developed in Visual Basic Applications (VBA) programming language, with a graphic interface built in Excel. The program, named PVTpetro, consists in three basic computational modules and their auxiliary functions. The isothermal two phase flash (P, T) module calculation to hydrocarbon mixtures consists of VLE for multi-component oil-gas systems. The isothermal three phase flash (P, T) module calculation evaluates oil, water and gas (OWG) systems. Lastly, the bulk properties of petroleum fluids calculation module calculates the molecular weight, the volume and density of the system phases. The tool has been validated through the comparison between the results of commercial thermodynamic packages (Wimprop, Hysys, COMThermo) with the developed program. The results were evaluated by the relative deviation calculation between these commercial software and PVTpetro results. For the isothermal two-phase flash (P, T) calculation module were observed deviations below 1% for Wimprop and Hysys results. For the isothermal three phase flash (P, T) calculation module the deviations were about 0 and 5% for Hysys and COMThermo. For the bulk properties calculation module the results by PVTpetro and Hysys showed a good agreement in all investigated conditions, ensuring the PVTpetro reliability / Mestrado / Explotação / Mestre em Ciências e Engenharia de Petróleo

Orientador: Carolina Cantarino Rodrigues / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem / Made available in DSpace on 2018-08-27T16:59:38Z (GMT). No. of bitstreams: 1 Lima_RodolfoPereirade_M.pdf: 13333600 bytes, checksum: 6f14916c85f45c014392f1802fab932e (MD5) Previous issue date: 2015 / Resumo: A dissertação propõe uma intersecção entre teatro e homossexualidade a partir da produção dramatúrgica do autor Newton Moreno, produzida no começo do século XXI. Peças em que homossexuais masculinos e travestis tiveram suas idiossincrasias reverenciadas através de esquetes permeados por (des)amor, violência e preconceito. A dissertação apresenta-se em ensaios interdependentes, apoiados nos textos de Theodor W. Adorno e Jorge Larossa que arejam o conceito de ensaio, bem como os conceitos de obsceno e pornográfico, defendidos respectivamente por Eliane Robert Moraes e Susan Sontag. Não esquecendo de autores como Michel Foucault, José Antônio Marina, Wilton Garcia, Denilson Lopes e Gilles Deleuze, entre outros, para fomentar a discussão em torno desse suposto "teatro gay". A relação teatro/gay não é comum no meio acadêmico. Por isso, o intuito de que parte da memória teatral gay não se perca com o tempo / Abstract: The dissertation proposes an intersection between theater and homosexuality from the theatrical production of the author Newton Moreno, produced in the early twenty-first century. Texts on homosexuals and transvestites which has its idiosyncrasies revered through skits permeated by disaffection, violence and prejudice. The dissertation is presented in interdependent trials supported in the writings of Theodor W. Adorno and Jorge Larossa airing the concept of study, and the concepts of obscene and pornographic, defended respectively by Eliane Robert Moraes and Susan Sontag . Not forgetting of authors like Michel Foucault, José Antonio Marina, Wilton Garcia , Denilson Lopes and Gilles Deleuze , among others, to encourage discussion around this supposed "gay theater " . The relationship theater / gay is not common in Brazilian academia. Therefore, in order that the gay theater memory is not lost with time. Keywords ¿ Newton Moreno, Gay Theatre, homoeroticism, dramaturgy / Mestrado / Divulgação Científica e Cultural / Mestre em Divulgação Científica e Cultural

Die vorliegende Arbeit untersucht die vermeintliche Krise staatlicher Ordnung Ende der 1960er Jahre in den USA und die Reaktionen der staatlichen Institutionen auf den Angriff durch politische Gewalt anhand einer performanz- und erzähltheoretischen Analyse von zwei Gerichtsprozessen. Beide Verfahren gegen Ikonen der Black Power-Bewegung, People vs. Huey Newton ab 1968, People vs. Angela Davis ab 1970 wurden zu einem Brennpunkt der gesamtgesellschaftlichen Debatte um Gerechtigkeit und demokratische Grundrechte. Durch eine Analyse der Interaktion aller beteiligten Akteure vor Gericht, der vorgebrachten Narrative sowohl im Gerichtsssaal als auch in der Presse, durch die Solidaritätskomittees der Angeklagten weitergetragen, ist eine performative Rekonstruktion des amerikanischen Rechtsstaates und der amerikanischen Demokratie auszumachen. Diese wurde unter Begriffen wie dem „fair trial“ und der Beziehung zwischen afroamerikanischen Bürgern und der Polizei und der Fähigkeit des Strafjustizsystems, Gerechtigkeit für alle seine Bürger zu garantieren, verhandelt. In den Prozessen wurde der inhärente Rassismus in der amerikanischen Gesellschaft als größte Hürde zwischen der bisherigen Rechtspraxis und einem solchen neu verhandelten Verständnis von Gerechtigkeit identifiziert, die als solche angenommene weiße Normalität des Justizapparats wurde sichtbar gemacht und dekonstruiert. In der performativen Neukonstruktion und -deutung der Akteure vor Gericht verschob sich dieses bisherige Machtgefälle vor allem innerhalb des Gerichtssaals, indem die Kategorien Race, Class und Gender neu zueinander in Bezug gesetzt wurden und die Angeklagten eine Selbstbehauptung als gleichwertige Rechtssubjekte im spezifischen Raum des Gerichts erlangen konnten. Zudem etablierte sich ein Juryauswahlverfahren, welches Bias explizit anerkannte. Durch diese Entwicklung wurde das narrative wie performative ‚Bedrohungsszenario‛, was zuvor von staatlichen Akteuren öffentlich konstruiert worden war, ausgehebelt; ein von staatlicher Seite angestoßener Sicherheitsdiskurs konnte sich nicht gesamtgesellschaftlich durchsetzten. / By analyzing two court cases, this dissertation examines the perceived crisis of Democracy in the late 1960s in the United States and the reactions of state institutions to the attack by political violence. Both trials against icons of the Black Power movement, People v. Huey Newton in 1968, People v. Angela Davis beginning in 1970, became a focal point of the overall social debate on justice and basic democratic rights. An analysis of the interaction of all of the protagonists involved in court, the narratives that were brought forward in the courtroom and in the press, and the defendants' solidarity committees reveal a performative reconstruction of the American rule of law and American democracy. This was negotiated under concepts such as the "fair trial" and the relationship between African-American citizens and the police and the ability of the criminal justice system to guarantee justice for all its citizens. In the trials, the inherent racism in American society was identified as the greatest obstacle between previous legal practice and such a renegotiated understanding of justice, making visible and deconstructing the white normality of the judicial system assumed as such. In the performative re-construction and reinterpretation of the actors in court, categories such race, class, and gender shifted, allowing the Defendants to achieve self-assertion as equal legal subjects. In addition, a jury selection procedure was established that explicitly recognized bias. This development undermined the narrative and performative "threat" which had previously been publicly constructed by politicians, and a security discourse initiated by the state was not able to assert itself throughout society.

The purpose of this dissertation is to design identification methods for identifying a permanent magnet synchronous motor. The whole identification and motor control is carried out in d-q coordinates, and the program used for processing and control was the matlab simulink, together with the real time platform DSpace. The work focuses on two main areas of identification, off-line identification and on-line identification. For offline identification the frequency analysis was used with the lock rotor test to get three main parameters. They are the quadrature and direct inductances and stator resistance. In the online mode, the identified parameters were extended to magnet flux _f identified by MRAS method. The remaining parameters were again identified by frequency analysis, which was adapted into online mode, and simultaneously applied to the identification of several part in one time. The next method is Newton method, which is used for estimating stator resistance of the motor, without the need to apply any signal.

<p>Predmet istraživanja doktorske disertacije je faktorizacija polinoma dve promenljive sa celobrojnim koeficijentima pomoću njima pridruženih Newton-ovih poligona. Formalizacija potrebnog i dovoljnog uslova za postojanje netrivijalne faktorizacije polinoma dve promenljive sa celobrojnim koeficijentima omogućava konstrukciju efektivnog algoritma za faktorizaciju. Konačno, dobijeni teorijski rezultati su primenjeni na dekodiranje jedne klase Reed &ndash; Solomon kodova, miksa dve kodne reči.</p> / <p>The research subject of the thesis is factorization of bivariate polynomials with integer coefficients via associated Newton polygons. Formalization of the necessary and sufficient condition for the existence of a non &ndash; trivial factorization of an arbitrary bivariate polynomial with integer coefficients obtains theoretical basis for construction of an effective factorization algorithm. Finally, these theoretical results are applied in decoding special class of Reed &ndash; Solomon codewords, mixture of two codewords.</p>

Ce travail décrit le développement d’un outil de simulation du transport réactif, nommé SpeCTr (Spéciation Cinétique Transport), intégrant le fractionnement isotopique. Ce modèle est obtenu à travers le couplage d’un module décrivant le transport et d’un module décrivant les principales réactions chimiques (approche de séparation d’opérateur). Une grande partie du travail est dédiée à l’amélioration des algorithmes du module décrivant les réactions chimiques pour la résolution des équations de l’équilibre thermodynamique (méthode de Newton Raphson modifiée à travers les techniques du scaling et des Fractions Continues Positives) et du mélange de réactions cinétiques et à l’équilibre (étude sur la formulation et résolution des systèmes d’équations différentielles et différentielles-algébriques). L’outil est validé à travers la résolution de plusieurs tests (batch et transport réactif) et appliqué pour la simulation d’expériences de laboratoire en 1D, 2D et 3D portant sur la dissolution des cristaux de calcite dans une colonne de milieu poreux / The work describes the development of a reactive transport code named SpeCTr (Spéciation Cinétique Transport in French). The code, able to describe isotopic fractionation, is obtained through the coupling of a transport module and a reaction module that describes the main chemical reactions (operator splitting approach). A consistent portion of the work is dedicated to the improvement of the numerical methods employed in the reaction module for solving thermodynamic equilibrium (Newton Raphson method modified with scaling and Positive Continuous Fractions) and mixed equilibrium and kinetic reactions (formulation and solution of systems of differential and differential-algebraic equations). The code was verified through the solution of different benchmarks (batch and reactive transport simulations) and applied to perform 1D, 2D and 3D simulations of laboratory experiments dedicated to calcite crystals dissolution in a column of porous medium.

Sgr A*, le trou noir supermassif le plus proche de nous, émet une luminosité quiescente très faible ainsi que des éruptions en infrarouge proche (NIR), rayons X et radio. Cette thèse a pour but d'étudier l'effet du passage de DSO/G2 près de Sgr A* sur les éruptions. J'ai utilisé et amélioré trois méthodes pour l'étude en rayons X : les blocs Bayésiens en deux passes pour détecter les éruptions avec une certaine probabilité, le lissage des courbes de lumières pour diminuer le bruit de Poisson et la méthode de Monte Carlo par chaînes de Markov pour l'ajustement des spectres des éruptions. J'ai contraint les paramètres physiques de la source pour une des 3 éruptions détectées en rayons X en 2011 et pour 3 éruptions détectées en rayons X et NIR durant la campagne multi-longueurs d'onde de février-avril 2014. L'activité en rayons X et NIR de février-avril 2014 correspond à celle observée avant le passage de DSO/G2 près de Sgr A*. J'ai calculé le taux d'éruption intrinsèque en rayons X de Sgr A* en 1999-2015 et détecté une plus faible activité à partir du 28 octobre 2013. L'énergie stockée pendant cette période peut expliquer la plus forte activité observée du 30 août au 9 septembre 2014. / Sgr A*, the closest supermassive black hole, is an extremely low luminosity black hole emitting flares in near-infrared (NIR), X-rays and radio. The goal of this Ph.D. is to study the impact of the pericenter passage of the Dusty S-cluster Object DSO/G2 close to Sgr A* on the flaring activity. I used and improved three methods for the study in X-rays: the two-steps Bayesian blocks method to detect flares with a given false detection probability, the light curve smoothing to reduce the Poisson noise and the Monte Carlo Markov chains method for the fitting of the flare spectra. I constrained the physical parameters of the flaring region for one of the three X-ray flares detected in 2011 and for three NIR/X-ray flares detected during the 2014 Feb.-Apr. multiwavelength campaign. The X-ray and NIR activity during the 2014 Feb.-Apr. is not different from those observed before the DSO/G2 pericenter passage. I computed the intrinsic flaring rate in X-rays from Sgr A* in 1999-2015 and I detected a smaller flaring activity beginning on 2013 Oct. 28. The energy saved during this time period could explain the largest activity observed from 2014 Aug. 30 to Sept. 9.

GeoGebra is a free, open-source, and multi-platform software that combines dynamic geometry, algebra and calculus in one easy-to-use package. Students from middle-school to university can use it in classrooms and at home. In this workshop, we will introduce the features of GeoGebra with a special focus on not very common applications of a dynamic geometry program. We will inform about plans for developing training and research networks connected to GeoGebra. We can expect that at the time of the conference a spreadsheet will be integrated into GeoGebra which offers new ways teaching mathematics using the interplay between the features of a spreadsheet and the objects of dynamic geometry.

ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / Robust adaptive beamforming using worst-case performance optimization is developed in recent years. It had good performance against array response errors, but it cannot reject strong interferences. In this paper, we propose a scheme for robust adaptive beamforming with broad nulls to reject strong interferences. We add a quadratic constraint to suppress the power of the array response over a spatial region of the interferences. The optimal weighting vector is then obtained by minimizing the power of the array output subject to quadratic constrains on the desired signal and interferences, respectively. We derive the formulations for the optimization problem and solve it efficiently using Newton recursive algorithm. Numerical examples are presented to compare the performances of the robust adaptive beamforming with no null constrains, sharp nulls and broad nulls. The results show its powerful ability to reject strong interferences.