As estrelas Herbig Ae/Be (HAeBe) representam os objetos de massa intermediária (2-10 Msol) na pré-sequência principal. Algumas de suas propriedades físicas são pouco compreendidas até o momento. Somente o estudo conjunto das informações fornecidas em diversos comprimentos de onda pode revelar as características do material circunstelar destes objetos. O objetivo deste trabalho de doutorado é analisar sob vários aspectos a estrutura, a composição e a evolução destes ambientes circunstelares. Para realização deste estudo, adotamos a amostra de candidatas a estrelas HAeBe detectadas pelo Pico dos Dias Survey (Vieira et al. 2003). Evitamos as possíveis contaminações desta amostra por estrelas em estágios mais avançados utilizando diagramas de cores, estimativas de extinção e características espectrais. A química da poeira circunstelar foi analisada a partir das propriedades dos espectros ISO disponíveis para nossos objetos. O perfil espectral do silicato em torno de 10 microns revelou características evolutivas do material circunstelar. O status evolutivo dos objetos mais embebidos foi determinado por meio de estimativas da massa de seus envoltórios circunstelares. Este estudo indicou que a maior parte desta sub-amostra se encontra no estágio intermediário entre a Classe 0 (Menv>>M*) e a Classe I (Menv<M*) de estrelas jovens. Detalhes da morfologia do disco de PDS340 foram analisados por imagens no infravermelho-médio, obtidas em bancos de dados. Estas observações impuseram vínculos à extensão e orientação espacial do disco nesta faixa espectral. As observações disponíveis em vários comprimentos de onda revelaram características da estrutura e evolução do material circunstelar associado a estrelas HAeBe. A perspectiva do desenvolvimento de um modelo completo que abranja todas estas informações é descrita na conclusão do trabalho. / Herbig Ae/Be (HAeBe) objects are intermediate mass (2 -10 Msun) stars in the pre-main sequence. Some of their properties remain not well understood to date. Only a full multi-wavelength study is able to reveal a reasonable scenario for their circumstellar material. The purpose of the present work is to study the structure, composition and evolution of these circumstellar environments. To address this issues, the sample of HAeBe candidates detected by the Pico dos Dias Survey (Vieira et al., 2003) was adopted. To avoid the contamination by more evolved stars, we developed an analysis based on two-color diagrams, extinction values and spectral features. The chemistry of the circumstellar dust was studied based on Infrared Space Observatory spectra available to our sample. The silicate feature around 10 micron revealed evolutionary information of the circumstellar material. The evolutionary stage of the more embedded sources was determined by estimates of their envelope masses. This study indicates almost all of this sub-sample to be in the intermediate phase between Class 0 (Menv>>Msun) and Class I (Menv<Msun). Mid-infrared images, retrieved from archive data, introduced morphological constraints to the orientation and extension of the disk associated to PDS340. The available observations for several wavelengths revealed some characteristics of the structure and evolution of the circumstellar material associated to HAeBe stars. The perspective of the development of a complete model, which encompasses all the available data, is described in the conclusion of this work.

One of the biggest problems of today is transport, especially in the cities. The transport has many negative effects, like congestions, pollution and others. The solutions of this situation are very hard and they have no integrated methodology. This doctoral thesis has two theoretic objectives: 1. set up new concept of city logistics, which means the integration of several disciplines, important for integrated admission to soluted problems 2. validate the pertinence of simulation in the new koncept of city logistics, created in objective 1 The thesis has also one concrete objektive, which is the validation of effectiveness of one project. The investigated project is removal of the train station in Brno.

Neste trabalho são apresentados diversos métodos de localização de vazamentos, desde as técnicas e equipamentos mais elementares, como a inspeção visual e o geofone mecânico, até o uso dos sofisticados armazenadores de ruídos e de modelação computacional. Algumas dessas técnicas são amplamente difundidas e largamente utilizadas pelas empresas de saneamento, outras porém, constituem-se em ótimas promessas para o aperfeiçoamento do controle das perdas físicas nos sistemas de abastecimento. É dada ênfase na utilização do diagrama de resposta em freqüência para localizar e quantificar vazamentos, com especial aplicação às adutoras de água tratada. A técnica de utilização da resposta em freqüência desenvolvida por Lee et al. (2005) é esmiuçada, inclusive acerca do impacto que um vazamento impõe ao diagrama de resposta em freqüência. São abordadas as formas de obtenção do referido diagrama, tanto do ponto de vista do modelo matemático e computacional, quanto dos ensaios de campo necessários. / This work presents some methods for leak location, from de most elementary techniques and equipments, as visual inspection and mechanical geophone, until using sophisticated noise data-logger and computational modeling. Some of these techniques are very well issued and largely used by water companies, but others play excellent promises for the improvement of leak control in systems of water supply. The pattern of the frequency response diagram is used for leak location and quantification, with special application in drinking water pipelines. The frequency response technique developed by Lee et al. (2005) is studied in details, including the impact produced by the leak on the frequency response diagram. The ways to obtain the frequency response diagram, by using mathematical and computational models or necessary field data survey, are also discussed.

Submitted by admin tede (tede@pucgoias.edu.br) on 2018-05-28T17:35:44Z No. of bitstreams: 1 ROGÉRIO ANTÔNIO ALVES.pdf: 1543199 bytes, checksum: 74bdd4f9fd6ecbfbe6da822216ba1ff4 (MD5) / Made available in DSpace on 2018-05-28T17:35:44Z (GMT). No. of bitstreams: 1 ROGÉRIO ANTÔNIO ALVES.pdf: 1543199 bytes, checksum: 74bdd4f9fd6ecbfbe6da822216ba1ff4 (MD5) Previous issue date: 2018-03-23 / Unveiling the historical plot woven about the local and regional leads us to find of the minutiae that makes us understand a range of issues related to an even broader field. When we look at the history of the city of Uberlândia, in the state of Minas Gerais, we observe a range of objects, facts and issues. It’s from this reality that we proposed here to understand the course taken by the Roman Catholic Church, and within it, its action in the political, social and economic environment under the aegis of modernization. From this perspective, the purpose is to understand the process of overthrowing the old main church of Our Lady of Mount Carmel and the construction of the new main church of Saint Thérèse of Child Jesus and the Holy Face, that happens between the years of 1930 and 1941 under the sign of the new (progress). From the building of the Saint Thérèse of the Child Jesus and the Holy Face, the point is to visualize the greater context of history between the macro and the micro, which imposes on the Catholic Church institution a new posture in the social environment. At the beginning of the twentieth century, the conjuncture of modernity (steamroller) brings to society new experiences that will make the Church, at first sight, to see them as strange, but with the passage of time they settle themselves like a new vision in the practice of this Institution. Our discussions go through the theoretical-methodological perspective in the field of cultural history, in the discussions about the history and city proposed by Leonardo Benevolo and José Evaldo de Mello Doin. The documentation used in this work, newspapers, minutes and books of tombo was found mostly in the public archive of Uberlândia and in the collections of the Diocese of Uberlândia.From the discussions made, it’s perceived that the ideal of progress that permeates the Uberlandian society in the proposed period, makes the Catholic Church to follow the same, collaborating with the erasure and forgetting of its own history, intending to modernize itself. It’s also verified that the Catholic Church established a dialogical relation with the political instance in order to demarcate its space in the center of the city of Uberlândia. / Desvendar a trama histórica tecida acerca do local e regional leva-nos ao encontro de minúcias que nos fazem compreender um leque de questões relacionadas a um campo ainda mais amplo. Ao debruçarmo-nos sobre a história da cidade de Uberlândia, no Estado de Minas Gerais, observamos uma amplitude de objetos, fatos e questões. É a partir desta realidade, que nos propusemos aqui a compreender o percurso feito pela Igreja Católica Apostólica Romana, e dentro desta, sua atuação no meio político, social e econômico sob a égide da modernização. Nessa perspectiva, objetiva-se compreender o processo de derrubada da antiga Matriz Nossa Senhora do Carmo e a construção da nova Matriz de Santa Terezinha do Menino Jesus e da Sagrada Face, que ocorre entre os anos de 1930 a 1941, sob o signo do novo (progresso). A partir da edificação Matriz de Santa Terezinha do Menino Jesus e da Sagrada Face, procura-se visualizar o contexto maior da história nos entremeios entre o macro e o micro, que impõe à instituição Igreja Católica nova postura no meio social. A conjuntura da modernidade (rolo compressor), no inicio do século XX, traz para sociedade novas vivências que irão fazer com que a Igreja, em um primeiro momento, as veja como estranhas, mas que com tempo assetam-se com nova visão nas práticas de fé desta Instituição. Nossas discussões perpassam pela perspectiva teórica-metodológica situada no campo da história cultural, nas discussões acerca da história e cidade propostas por Leonardo Benevolo e José Evaldo de Mello Doin. A documentação utilizada no presente trabalho, jornais, atas e livros de tombo foi encontrada em sua maioria no arquivo público municipal de Uberlândia e nos acervos da Diocese de Uberlândia. A partir das discussões feitas, percebe-se que o ideal de progresso que permeia a sociedade Uberlandense no período proposto, faz com que a Igreja Católica acompanhe o mesmo, ao colaborar com o apagamento e esquecimento de sua própria história a fim de modernizar-se. Constata-se, ainda, que a Igreja Católica estabeleceu uma relação dialógica com a instância política no intuito de demarcar seu espaço no centro da cidade de Uberlândia.

Cette thèse, qui s'appuie sur ma pratique artistique personnelle, analyse l'identité, l'origine, la valeur et la place de la main dans l'art en sillonnant l'ancienne Route de la soie. J'étudie mon parcours de création artistique, ma culture, mes identités multiples et mes influences au regard de l'héritage légué par La Roule de la soie et la route de La création. La traversée de la Route de la soie s'articule autour de quatre thèmes: la rencontre, le contact, le croisement et la frontière. Les recherches m'ont mené sur un voyage messianique dans le but de répondre aux questions qui me hantaient: l'influence étendue de la Route de la soie sur la création artistique est-elle source de créativité? Comment peut-elle se révéler dans les œuvres d'artistes contemporains? La route de ma création artistique se croise-t-elle avec la Route de la soie? Pour répondre à ces questions, j'ai présenté ma main comme une figure qui me lie à mes origines invisibles. Dans le premier chapitre, j'explore la notion d’identité à travers les portraits de la main, puis j'étudie la notion de frontière visible et invisible. Dans le troisième chapitre, j'analyse le toucher, le goûter et le croisement avec la Route de la soie. Enfin, j'examine le contexte des paysages intérieurs et je tente de mettre en lumière l'héritage caché ainsi que les secrets de l'art local imprégné par la culture de notre région et ce à travers les croisements et les métissages culturels. / Relying on my personal artistic practice, this thesis analyzes the identity, origin, the value and the place of the "band" in the art in weaving through the old Silk Road. The analysis of my artistic creation, my culture, my multiple identities and my influences in the light of the legacy of the Silk Road and the road of the creation. The crossing of the Silk Road is structured around four themes : the meeting, contact. The crossing and the border. The research led me on a messianic trip, in the aim of finding answers to the questions that concern me : how the Silk Road influences artistic creation, is it a source of creativity? How can it be in the works of contemporary artists? How it emerges on my artistic creation? To answer these questions, I presented my band as a figure, which binds me to my multiple origins. In the first chapter I will analyze the concept of identity through the portraits of the band, then I will look into the notion of border visible and invisible. In the third chapter, I will analyze the touch, the taste and the crossing with the Silk Road. Finally, I will examine the context of interior landscapes and I will try to demonstrate the hidden legacy as well as the secrets of the local art impregnated in the culture of our region through crosses and cultural mixes.

The most efficient homogeneous catalysts for hydroxylation of light alkanes utilize transition metals in superacid solvent and operate by tandem electrophilic C-H activation/metal-alkyl (M-R) functionalization. An emerging alternative strategy to transition metals is the use of high-oxidation state main-group metals (e.g. TlIII, PbIV, IIII) that hydroxylate light alkanes. This dissertation reports density-functional theory calculations that reveal the mechanisms, reactivity, and selectivity of TlIII promoted alkane C-H functionalization in trifluoroacetic acid and TlIII-dialkyl functionalization in water. Calculations reveal that TlIII oxidizes alkanes via a closed-shell C-H activation and M-R functionalization mechanism that is similar to transition-metal C-H functionalization mechanisms. Comparison of TlIII to similar transition metals reveals that while TlIII and transition metals can have similar activation barriers for C-H activation, TlIII M-R functionalization is significantly faster due to a highly polar Tl-C bond and large TlIII/TlI reduction potential. The combination of a moderate C-H activation barrier combined with a low M-R functionalization barrier is critical to the success for TlIII promoted alkane C-H oxidation. The proposed TlIII C-H activation/M-R functionalization mechanism also provides an explanation for ethane conversion to a mixture of ethyl trifluoroacetate and ethane-1,2-diyl bis(2,2,2-trifluoroacetate). The reactivity of TlIII contrasts the lack of alkane oxidation by HgII. The C-H activation transition state and frontier-orbital interactions provide a straightforward explanation for the higher reactivity of TlIII versus HgII. This frontier-orbital model also provides a rationale for why the electron-withdrawing group in EtTFA provides "protection" against overoxidation. Calculations also reveal that TlIII-dialkyl functionalization by inorganic TlIII in water occurs by alkyl group transfer to form a TlIII-monoalkyl complex that is rapidly functionalized.

Die Arbeit befasst sich mit Erbrechtsprozessen, speziell Testamentsrechtsverfahren, die aus dem Gerichtssprengel Frankfurt am Main an das Reichskammergericht gelangt sind. Die Untersuchung umfasst die gesamte Wirkungszeit des Reichskammergerichts von 1495 bis 1806. Die Verfahrensakten sind unter den Aspekten der Rechtsanwendung des "Frankfurter Testamentsrechts", der Besonderheiten von testamentsrechtlichen Prozessen, der Inhalte der zum richterlichen Spruch gestellten Auseinandersetzungen sowie der Beweggründe der streitenden Prozessparteien untersucht worden. / The thesis analyses inheritance disputes, in particular probate action presented to the Reichskammergericht (Imperial Chamber Court) from the jurisdiction of Frankfurt am Main. It examines the entire era of the Reichskammergericht from 1495 until 1806. The court records were reviewed with regard to various aspects in the application of Frankfurt’s probate law, the particularities of probate proceedings, the subject matter to be adjudicated as well as the motives of the litigants.

Das Ziel dieser Dissertation mit dem Titel „Die Auswirkungen der medialen Internetnutzung auf die Print-Zeitung“ war es, herauszufinden, wie sich die Print-Zeitungen durch den Einfluss der Online-Medien verändern. Als Korpus wurden die lokale Tageszeitung Mainpost, die überregionale Tageszeitung Süddeutsche Zeitung, sowie die Wochenzeitschrift Spiegel gewählt. In den beiden Zeiträumen Juni bis August 1999 und Juni bis August 2009 wurden die Titelthemen der drei Presseerzeugnisse untersucht und miteinander verglichen. Meine These lautete: Durch die Konkurrenz der kostenlosen Online-Medien müssen sich die Print-Medien abgrenzen, um ihre Existenz zu sichern. Das können sie am besten durch eine Qualitätssteigerung erreichen, denn von einer Online-Zeitung erwarten die Menschen vor allem, schnell informiert zu werden. Sie lesen hauptsächlich kurze Meldungen - lange Texte werden aufgrund der Lesegewohnheiten bisher noch nicht gerne am PC konsumiert. Die gut recherchierten Hintergrundberichte erhalten sie idealerweise dann in den Print-Medien. Die Lokalzeitungen müssen darüber hinaus ihre Berichterstattung auf das Geschehen vor Ort konzentrieren. Meine Analyse zeigt, dass die Richtung von allen drei Erzeugnissen eingeschlagen wurde, in einigen Punkten besteht allerdings noch Nachholbedarf. Die Doktorarbeit stellt darum nicht nur die Wirklichkeit empirisch dar, sondern gibt den Journalisten auch konkrete Handlungsanweisungen und vermittelt Erkenntnisse über zukünftige Entwicklungen. Eine vergleichbare Arbeit existierte in der deutschen Sprachwissenschaft bislang nicht. Es gibt zwar Untersuchungen zu den Entwicklungen in Online- und Print-Medien, jedoch keine die von dem einen Medium auf das andere schließt. In dem sich außerordentlich schnell entwickelnden Bereich der Online-Medien fehlen vor allem aktuelle Untersuchungen. Eine Forschungslücke gibt es außerdem im Bereich der quantitativen Forschung: Eine wissenschaftliche Untersuchung, die auf der Basis empirischer Daten Aufschluss über den Einfluss der neuen Medien hinsichtlich des Sprachgebrauchs gibt, liegt bislang nicht vor. Dieses Forschungsdefizit wurde durch meine Arbeit behoben. Um herauszufinden wie sich die mediale Internetnutzung auf die Print-Medien auswirkt, wurden qualitative und quantitative Analysemethoden miteinander kombiniert. Es wurden allerdings nicht nur die Sprache der Texte analysiert, sondern auch ökonomische und soziologische Gesichtspunkte untersucht. Es handelt sich deshalb um eine interdisziplinäre Arbeit, die fachlich in der Medienlinguistik angesiedelt ist. Diese junge Disziplin der Linguistik stellt einen Schnittpunkt zwischen Sprach- und Medienwissenschaft dar. Nachdem mir klar wurde, dass ich eine interdisziplinäre Arbeit verfassen möchte, habe ich mich 2009 dazu entschlossen, meine Arbeit im Rahmen der Graduiertenschule für Geisteswissenschaften an der Universität Würzburg zu verfassen. / The aim of my doctoral thesis entitled "The impacts of medial internet use on traditional print media" was to investigate how German print-media is changing under the impact of online-media. As corpus of research I used the local daily newspaper Mainpost, the national daily newspaper Süddeutsche Zeitung and the weekly magazine Spiegel. I was doing research on the front-page stories of the three print-media and compared them among each other in the period between June–August 1999 and June–August 2009. My hypothesis: Considering the increasing competition through free online-media, traditional print-media has to find their own distinguished profile to survive. This objective is preferrable reached through a quality improvement. The reason is that people request to get information in a fast manner by using online-media. They mainly read short articles - longer ones are rarely consumed because of online reading habits. Idealy one receives better researched background stories in the print-media afterwards. Moreover, local newspapers have to concentrate their reporting on regional issues. My examination shows that all newspapers analyzed tend towards the trends mentioned above. However there are some issues in which print-media still has to catch up. Therefore my doctoral thesis not only reflects the empirical reality but also gives concrete advice for journalists. There is no similar empirical study in the field of German linguistics yet. Even though there is research concerning the area of online- and print-media development, there is none referring from one to the other media. There is a lack of current research in the fast developing world of new media. There is also still some research in the field of quantitative examination to be done: One doesn't find a scientific study based on empirical data, that is sufficiently informing about the impact of new media regarding the use of written language in print-media. This deficit in current research was reduced by my thesis. To find out more about the influence of new media use on print-media I combined qualitative and quantitative methods. However I didn't just analyse the language of the texts, but also examined economical and social issues. For that reason this doctoral thesis is an interdisciplinary piece of work, from its subject belonging to the field of media linguistics. This new area of research represents an intersection between linguistics and media science. After realising that my thesis would be an interdisciplinary one, I decided to write it underneath the supervision of the Graduate School of Humanities Würzburg.

Über die letzten Jahrzehnte haben sich Datenbanken von festplatten-basierten zu hauptspeicher-basierten Datenbanksystemen entwickelt. Um diese Herausforderungen anzugehen und das volle Potenzial moderner Prozessoren zu erschließen, stellt diese Dissertation vier Ansätze vor um den Einfluss der „Memory Wall“ zu reduzieren. Der erste Ansatz zeigt auf, wie spezielle Prozessorinstruktionen (sogenannte SIMD Instruktionen) die Ausnutzung von Caches erhöhen und gleichzeitig die Anzahl der Instruktionen verringern. In dieser Arbeit werden dazu vorhandene Baumstrukturen so angepasst, dass diese SIMD Instruktionen verwendet werden können und somit die benötigte Hauptspeicherbandbreite verringert wird. Der zweite Ansatz dieser Arbeit führt ein Model ein, welches es ermöglicht die Anfrageausführung in verschiedenen Datenbanksystemen zu vereinheitlichen und dadurch vergleichbar zu machen. Durch diese Vereinheitlichung wird es möglich, die Hardwareausnutzung durch Hinzunahme von Wissen über die auszuführende Hardware zu optimieren. Der dritte Ansatz analysiert verschiedene Datenbankoperatoren bezüglich ihres Verhaltens auf verschiedenen Hardwareumgebungen. Diese Analyse ermöglicht es, Datenbankoperatoren besser zu verstehen und Kostenmodelle für ihr Verhalten zu entwickeln. Der vierte Ansatz dieser Arbeit baut auf der Analyse der Operatoren auf und führt einen progressiven Optimierungsalgorithmus ein, der die Ausführung von Anfragen zur Laufzeit auf die jeweiligen Bedingungen wie z.B. Daten- oder Hardwareeigenschaften anpasst. Dazu werden zur Laufzeit prozessorinterne Zähler verwendet, die das Verhalten des Operators auf der jeweiligen Hardware widerspiegeln. / Over the last decades, database systems have been migrated from disk to memory architectures such as RAM, Flash, or NVRAM. Research has shown that this migration fundamentally shifts the performance bottleneck upwards in the memory hierarchy. Whereas disk-based database systems were largely dominated by disk bandwidth and latency, in-memory database systems mainly depend on the efficiency of faster memory components, e.g., RAM, caches, and registers. To encounter these challenges and enable the full potential of the available processing power of modern CPUs for database systems, this thesis proposes four approaches to reduce the impact of the Memory Wall. First, SIMD instructions increase the cache line utilization and decrease the number of executed instructions if they operate on an appropriate data layout. Thus, we adapt tree structures for processing with SIMD instructions to reduce demands on the memory bus and processing units are decreased. Second, by modeling and executing queries following a unified model, we are able to achieve high resource utilization. Therefore, we propose a unified model that enables us to utilize knowledge about the query plan and the underlying hardware to optimize query execution. Third, we need a fundamental knowledge about the individual database operators and their behavior and requirements to optimally distribute the resources among available computing units. We conduct an in-depth analysis of different workloads using performance counters create these insights. Fourth, we propose a non-invasive progressive optimization approach based on in-depth knowledge of individual operators that is able to optimize query execution during run-time. In sum, using additional run-time statistics gathered by performance counters, a unified model, and SIMD instructions, this thesis improves query execution on modern CPUs.

In this study I investigated the process drama convention of tableau to mediate for the representation of main ideas in science information texts. My pedagogical goal was to focus on the body as a tool for engaging with information texts and my rationale for this goal was the belief that the body is neglected in classroom learning. The task of creating caused the students to be active and to think of their own and other bodies as signifiers of meaning. The methodology was based on a formative experiment that allowed for changes and modifications to be made in response to the intervention of tableau. Formative and design experiments recognize that classrooms are ecologically complex research sites that are situated in particular cultural and historical contexts. Theories related to cultural historical activity theory (CHAT), expansive and embodied learning frame this research as paradigms that recognize the dialectics between activity and culture and the body in and of the world. In the study tableau is framed as an innovative learning method that disrupts the traditional and historical methods for identifying main idea, such as the annotation of text. Through the disruption of tableau came opportunities to expand notions of literacy and comprehension as well as the traditional associations of drama with fiction texts. The study shows that tableau is a flexible mediating tool that can be applied to the current focus on informational texts and close reading.