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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Étude d'architectures de capteurs RF intégrés au substrat destinés à la mesure diélectrique

Benleulmi, Adel January 2018 (has links) (PDF)
No description available.
22

O Naipe de Trompete e Cornet nosPrelúdios e Sinfonias das Óperas de Antônio Carlos Gomes / The Trumpet and Cornet Section in the Preludes and Symphonies from Antônio Carlos Gomes' Operas

Ronqui, Paulo Adriano, 1977- 07 January 2010 (has links)
Orientador: Roberto Cesar Pires / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-16T18:29:32Z (GMT). No. of bitstreams: 1 Ronqui_PauloAdriano_D.pdf: 3859164 bytes, checksum: 420c2d572490cf1895bccf44bf668277 (MD5) Previous issue date: 2010 / Resumo: Ciente da necessidade e importância de trabalhos direcionados ao estudo do naipe de trompete em obras sinfônicas brasileiras, esta pesquisa se propôs a investigar a constituição do naipe de trompete e cornet nos Prelúdios e Sinfonias das óperas de Antônio Carlos Gomes. Com esse objetivo, estudou-se a contribuição instrumental de Carlos Gomes para a música brasileira e italiana no século XIX, além da evolução na construção dos trompetes de válvula na Europa e o uso precoce desses instrumentos por Gomes no Brasil. Por meio dessa investigação, comprovou-se a originalidade no emprego de diferentes conotações de naipe de trompete e cornet realizada em ambos os países pelo compositor campineiro. O trabalho de performance da pesquisa, deu-se através da reedição das partituras do naipe de trompete e cornet das obras estudadas, a partir dos manuscritos autógrafos. Completada a edição, selecionaram-se os trechos musicais mais relevantes para o naipe, às quais se propuseram sugestões interpretativas. Após esse trabalho, os excertos escolhidos foram gravados, a fim de oferecer referencial auditivo / Abstract: Aware of the need and importance of works aimed to study the trumpet section in brazilian symphonic works, this research intends to investigate the formation of trumpet and cornet section in the Preludes and Symphonies from Antonio Carlos Gomes' operas. For this purpose, was studied the instrumental contribution of Carlos Gomes for the Italian and Brazilian music in the nineteenth century, as well as the developments in the construction of the trumpet valve in Europe and the early use of these instruments by Gomes in Brazil. With this research, we can prove the originality of using of different connotations of the trumpet and the cornet section in both countries by the campineiro composer. The performance work of this research was made with the reedition of the trumpet and cornet section's score by using the autograph manuscripts. Completed the edition were selected the most relevant musical excerpts to the section, which were proposed interpretative suggestions. After this work the excerpts chosen were recorded in order to provide a hearing reference / Doutorado / Musica / Doutor em Música
23

Conception et intégration d’un sous-système filtre-antenne en céramique pour les communications haut-débit sans fils à 60 GHz / Conception of a ceramic filter / antenna subsystem for Wireless Communications at 60GHz

Kouki, Faten 15 January 2015 (has links)
Dans le cadre des communications numériques sans fil, la vitesse d’échange de données est plus que jamais une caractéristique critique du système. Une augmentation du débit est donc nécessaire pour le développement de nouvelles applications, comme le «Wireless HD» qui doit rendre possible la transmission sans fil de gros volumes de données, telles que de la vidéo «non-compressée» à haute définition, à très haut débit (1-2 Gbps). La bande de fréquence centrée à 60 GHz semble être une solution préférentielle pour répondre à un tel besoin de par sa bande de fréquence disponible (9 GHz). Pour cela, il est nécessaire de disposer de technologies performantes pour l’intégration de systèmes d’émission réception (front-ends) millimétriques pour ces communications à très haut débit. L’objectif de cette thèse est de participer à la réalisation d’un système antennaire très directif à 60 GHz par la conception combinée d’une antenne et d’un filtre, et l’intégration de cette fonction grâce à un même procédé technologique. La conception et l’intégration combinées de l’antenne et du filtre participeront à améliorer le rendement global du sous-système destiné à des applications très haut débit à 60 GHz. Cette thèse, intitulée «Conception de fonctions combinées filtre-antenne pour les communications haut débit à 60 GHz», a été réalisée au sein du laboratoire XLIM, en collaboration avec le SPCTS pour les aspects technologiques, dans le cadre d’un projet régional. / The 60 GHz unlicensed spectrum between 57 and 66 GHz has received a lot of attention over the last years for enabling short-range and over 1-Gbps high-speed wireless communications. In addition to the high-data rates that can be accomplished in this spectrum, many other benefits such as high security communications are foreseen. In general, this frequency band is destined to low power and short range fixed or mobile applications. To benefit from high-speed within a compact device, it is required to realize a subsystem combining a directional antenna and a multiplexer with the same technological process. The 3D ceramic stereo lithography process has been selected to ensure the dimensional accuracy and limit the inevitable dispersions. This thesis contributes to achieve directional antennas at 60GHz by a combined antenna design and filter, and perform this function in the same technology the 3D ceramic stereo lithography process when connecting the filter with the antenna. Therefore, the first challenge is to design and to manufacture the primary feed of the directive antenna and the channel filters using the 3D ceramic process. The second challenge is to combine the primary feed and the 4 channel filters to form a single object. The filter-antenna subsystem allows to have a directivity of approximately 14 dBi. Therefore, the radiation of the horn antenna remains unchanged over the whole frequency band [57-66]GHz by associating the manifold multiplexer. The filter-antenna subsystem provides a return loss better than 10 dB at each port.
24

Contribution au dimensionnement d'une liaison radio sur le corps humain : étude canal et antenne à 60 GHz / Contribution to on-body wireless link design : channel and antenna considerations at 60 GHz

Razafimahatratra, Solofo Miharisoa Sarobidy 14 November 2017 (has links)
L'étude au cours de cette thèse a permis d'aborder en partie les défis des communications BANs à 60 GHz. Cette fréquence présente des intérêts pour les applications BANs, principalement la réduction des interférences, la miniaturisation poussée des antennes, la large bande disponible permettant d'utiliser une technique de communication à faible consommation d'énergie. Pourtant, la forte atténuation à cette fréquence et l'influence du corps, rendent l'établissement d'une liaison BAN fiable et efficace en termes d'énergie à 60 GHz un vrai défi. Pour une analyse détaillée de canal de communication à cette fréquence, une antenne planaire a été conçue et utilisée pour des mesures sur le corps. Les mesures on-body montrent que les liaisons courtes et en conditions LOS (Line Of Sight) sont possibles à 60 GHz, les autres liaisons nécessitent le routage en multi-saut. Pour les scénarios off-body considérés, la faisabilité de l'utilisation des BANs à 60 GHz pour des systèmes de faible consommation d'énergie a été démontrée. En comparaison avec une fréquence dans la bande UWB (4 GHz), la probabilité d'interruption de communication à 60 GHz est toujours inférieure (8%) à celle à 4 GHz (15%), en respectant les standards de puissance pour les deux fréquences. Sur le plan analytique, pour franchir les difficultés de séparation antenne-canal sur le corps (ou " de-embedding "), plutôt que de considérer le gain d'antenne, une approche théorique basée sur la méthode des images complexes est présentée pour comparer deux antennes canoniques sur le corps en termes d'efficacité et de bilan de liaison. / The 60 GHz-band is interesting for BAN applications mainly for less interference than at microwave frequencies, further antenna miniaturization, wide available band adapted to low energy consumption communication. Nevertheless, the high attenuation at this frequency and the body influence on the propagation enhance the link budget. The design of a reliable and effective communications between nodes on body or for off-body links at 60 GHz is a real challenge. It requires a detailed analysis of the communication channel. For that, a planar antenna was designed and used for channel measurements on body. The on-body measurements show that short-distance and LOS (Line Of Sight) links are possible. The other links with high attenuation could be recovered by applying multi-hop routing techniques. In addition, the dynamics of the body is taken into account by statistical channel measurement on-body at 60 GHz and off-body at two frequencies, 60 GHz and 4 GHz. For the considered off-body scenarios, by taking into account transmission power standards and receiver sensitivity, regarding low power consumption receivers in the literature, the outage probability at 60 GHz is always lower than 8 % whereas that at 4 GHz is lower than 15 %. In the channel consideration, difficulties arise to separate the antenna from the channel (de-embedding) because of the strong influence of the body presence on antenna parameters. A theoretical approach based on the complex images method has been presented to compare two canonical antennas on the body in terms of efficiency and link budget. This result is useful to estimate the energy consumption and to choose antennas for BANs.
25

Les tableaux homonymiques, principe d’unité du Cornet à dés de Max Jacob

Dahan, Marianne 05 1900 (has links)
Ce mémoire s’intéresse à la structure du recueil de poésie en prose Le Cornet à dés (1917) de Max Jacob. À la lecture de l’ensemble, on remarque qu’il est sans cesse question de choses ou d’évènements auxquels renvoient les diverses significations du mot tableau : œuvres picturales, descriptions imagées, cadres de fenêtre ou de porte, vieillards (vieux tableaux), tableaux vivants, subdivisions de pièces de théâtre ou encore tableaux d’école. Subdivisé en trois chapitres, ce travail s’attachera dans un premier temps au fait que tous ces homonymes sont traités, dans les poèmes, comme des peintures. Entre fixité et mouvement, les descriptions et les narrations rapprochent la littérature de l’art pictural, ce qui contribue à l’esthétique du doute caractéristique de l’œuvre de Max Jacob. Le deuxième chapitre s’intéresse aux procédés de reprise et à la manière dont ils permettent de faire des liens entre les poèmes. À partir des théories du mouvement et de la répétition, nous verrons comment les divers motifs forment, à la manière des dés, différentes combinaisons d’une pièce à l’autre. Inspiré par les peintres cubistes qui présentent simultanément tous les angles d’un même objet, l’auteur fait le tour du mot tableau. Dans le dernier chapitre, il ressort que la juxtaposition des poèmes donne accès à un surcroît de signification : certains éléments arbitraires comme des titres obscurs prennent soudainement sens. Une réflexion sur la lecture vient compléter ce travail puisque les nombreuses répétitions sont traitées dans la mémoire. Ce travail s’inscrit dans le champ des études sur le recueil et s’appuie principalement sur l’analyse de poèmes. / This dissertation treats the structure of Le Cornet à dés (1917), a collection of prose poems written by Max Jacob. Upon reading this collection, one notices that things and events referring to the different definitions of the word “tableau” are repeatedly employed : paintings, visual descriptions, window and door frames, elders (vieux tableaux), living pictures (tableaux vivants), theater scenes and also blackboards. This dissertation, divided into three chapters, starts by exploring how these homonyms are employed as paintings in the poems. In-between fixity and movement, the descriptions and the narrations bring literature closer to pictorial art. This contributes to the aesthetic of doubt found in Max Jacob’s written work. The second chapter analyzes different kinds of repetitions and the way they build links between the poems. By employing the theories of movement and repetition, this dissertation demonstrates how the various motifs, similarly to a pair of dice, form different combinations from one poem to another. Inspired by the cubist painters who simultaneously show all the angles of an object, Jacob thoroughly examines the word “tableau”. In the last chapter, it becomes evident that the juxtaposition of the poems gives access to additional significance: certain arbitrary elements, such as obscure titles, suddenly make sense. A reflection on the act of reading concludes this dissertation, since the numerous repetitions are stored in the reader’s memory. This work falls within the field of collection studies and mainly relies on poetry analysis.
26

O templo cristão na modernidade : permanências simbólicas & conquistas figurativas

Müller, Fábio January 2006 (has links)
O estudo enfoca a arquitetura religiosa moderna, no intuito de apreender as permanências simbólicas e as conquistas figurativas alcançadas pelos arquitetos modernistas para dar forma e representação ao templo, em tempo dito ‘dessacralizado’ porque materialista e espiritualmente plural. Fundamentalmente, compila e sistematiza, por similaridades ideológicas, funcionais, simbólicas, tipológicas e formais, o legado eclesiástico projetado e/ou construído no mundo ocidental cristão entre os anos 1850 e 1960, grosso modo. Em sincronia, apresenta suas condições de origem, razões e significados e analisa como os pressupostos modernistas aplicaram-se ao fato arquitetural das novas catedrais, igrejas paroquiais, capelas locais e obras eclesiásticas várias, católicas e protestantes. Revela, também, seus produtores – financiadores, incentivadores, projetistas e construtores – analisando a atenção dada ao tema pelos mais eminentes nomes do período e realçando agentes inestimáveis, desprezados pela ‘bibliografia oficial’ do Movimento Moderno. Nas entrelinhas ensaia, ainda, discussão crítico-interpretativa de obras paradigmáticas ao debate por conjunção especial de fatores, no sentido de identificar as estratégias e signos modernos válidos à prática arquitetural contemporânea.
27

O templo cristão na modernidade 1920 | 1970

Müller, Fábio January 2011 (has links)
O estudo trata sobre o templo cristão na modernidade no período 1920 a 1970 de modo a resgatar, reconhecer e posicionar essa produção, digna de estudo, no contexto da arquitetura do século XX. Panorama acerca do tema, apresenta compilação e sistematização do concebido em capelas, igrejas paroquiais e catedrais, relacionando cristianismo e tempos modernos para identificar e avaliar os reflexos litúrgicos e simbólicos, por um lado, e funcionais, construtivos e estilísticos, por outro, numa inter-relação de homem, arte e sagrado no período. Historiografia crítica sobre o assunto, além de reunir e lançar juízo sobre as obras, recolhendo constatações gerais e peculiaridades como contribuição ao estado da arte moderna, desvela autores e incentivadores destacados em movimentações e resultados arquitetônicos para o templo cristão, afirmando suas importâncias e promovendo seu devido reconhecimento. Por tese, comprova a relevância da arquitetura do templo cristão como programa na modernidade, demonstrando sua continuidade, em quantidade e qualidade e evidenciando que a representação icônica do sagrado, que acontece através do tempo no templo, não se esvaiu ou perdeu-se nesse tempo histórico, tendo continuado o Cristianismo, através de outras construções marcantes, o trabalho inexorável de amparo e consolação espiritual a que se dedica a mais de dois milênios. / The study deals with the Christian temple in the modern period from 1920 to 1970 in order to rescue, to recognize and position this production, worthy of study in the context of twentieth century architecture. Panorama on the subject, has designed the compilation and systematization in chapels, parish churches and cathedrals, linking Christianity and modern times to identify and assess the liturgical and symbolic reflections, on the one hand, and functional, constructive and stylistic, the other, by a cross-relation of man and sacred art in the period. Critical historiography on the subject, besides gathering and lay judgments about the works by collecting general findings and peculiarities as a contribution to the state of modern art, unveils encouraging authors and movements in outstanding architectural and results for the Christian church, affirming their importance and promoting their due recognition. In theory, demonstrates the relevance of the Christian church architecture as a program in modernity, demonstrating its continuity, in quantity and quality, showing that the iconic representation of the sacred, what happens over time in the temple, not faded or lost at this time history, Christianity has continued through other landmark buildings, the relentless work of spiritual support and comfort that is dedicated to more than two millennia.
28

O templo cristão na modernidade : permanências simbólicas & conquistas figurativas

Müller, Fábio January 2006 (has links)
O estudo enfoca a arquitetura religiosa moderna, no intuito de apreender as permanências simbólicas e as conquistas figurativas alcançadas pelos arquitetos modernistas para dar forma e representação ao templo, em tempo dito ‘dessacralizado’ porque materialista e espiritualmente plural. Fundamentalmente, compila e sistematiza, por similaridades ideológicas, funcionais, simbólicas, tipológicas e formais, o legado eclesiástico projetado e/ou construído no mundo ocidental cristão entre os anos 1850 e 1960, grosso modo. Em sincronia, apresenta suas condições de origem, razões e significados e analisa como os pressupostos modernistas aplicaram-se ao fato arquitetural das novas catedrais, igrejas paroquiais, capelas locais e obras eclesiásticas várias, católicas e protestantes. Revela, também, seus produtores – financiadores, incentivadores, projetistas e construtores – analisando a atenção dada ao tema pelos mais eminentes nomes do período e realçando agentes inestimáveis, desprezados pela ‘bibliografia oficial’ do Movimento Moderno. Nas entrelinhas ensaia, ainda, discussão crítico-interpretativa de obras paradigmáticas ao debate por conjunção especial de fatores, no sentido de identificar as estratégias e signos modernos válidos à prática arquitetural contemporânea.
29

O templo cristão na modernidade 1920 | 1970

Müller, Fábio January 2011 (has links)
O estudo trata sobre o templo cristão na modernidade no período 1920 a 1970 de modo a resgatar, reconhecer e posicionar essa produção, digna de estudo, no contexto da arquitetura do século XX. Panorama acerca do tema, apresenta compilação e sistematização do concebido em capelas, igrejas paroquiais e catedrais, relacionando cristianismo e tempos modernos para identificar e avaliar os reflexos litúrgicos e simbólicos, por um lado, e funcionais, construtivos e estilísticos, por outro, numa inter-relação de homem, arte e sagrado no período. Historiografia crítica sobre o assunto, além de reunir e lançar juízo sobre as obras, recolhendo constatações gerais e peculiaridades como contribuição ao estado da arte moderna, desvela autores e incentivadores destacados em movimentações e resultados arquitetônicos para o templo cristão, afirmando suas importâncias e promovendo seu devido reconhecimento. Por tese, comprova a relevância da arquitetura do templo cristão como programa na modernidade, demonstrando sua continuidade, em quantidade e qualidade e evidenciando que a representação icônica do sagrado, que acontece através do tempo no templo, não se esvaiu ou perdeu-se nesse tempo histórico, tendo continuado o Cristianismo, através de outras construções marcantes, o trabalho inexorável de amparo e consolação espiritual a que se dedica a mais de dois milênios. / The study deals with the Christian temple in the modern period from 1920 to 1970 in order to rescue, to recognize and position this production, worthy of study in the context of twentieth century architecture. Panorama on the subject, has designed the compilation and systematization in chapels, parish churches and cathedrals, linking Christianity and modern times to identify and assess the liturgical and symbolic reflections, on the one hand, and functional, constructive and stylistic, the other, by a cross-relation of man and sacred art in the period. Critical historiography on the subject, besides gathering and lay judgments about the works by collecting general findings and peculiarities as a contribution to the state of modern art, unveils encouraging authors and movements in outstanding architectural and results for the Christian church, affirming their importance and promoting their due recognition. In theory, demonstrates the relevance of the Christian church architecture as a program in modernity, demonstrating its continuity, in quantity and quality, showing that the iconic representation of the sacred, what happens over time in the temple, not faded or lost at this time history, Christianity has continued through other landmark buildings, the relentless work of spiritual support and comfort that is dedicated to more than two millennia.
30

O templo cristão na modernidade 1920 | 1970

Müller, Fábio January 2011 (has links)
O estudo trata sobre o templo cristão na modernidade no período 1920 a 1970 de modo a resgatar, reconhecer e posicionar essa produção, digna de estudo, no contexto da arquitetura do século XX. Panorama acerca do tema, apresenta compilação e sistematização do concebido em capelas, igrejas paroquiais e catedrais, relacionando cristianismo e tempos modernos para identificar e avaliar os reflexos litúrgicos e simbólicos, por um lado, e funcionais, construtivos e estilísticos, por outro, numa inter-relação de homem, arte e sagrado no período. Historiografia crítica sobre o assunto, além de reunir e lançar juízo sobre as obras, recolhendo constatações gerais e peculiaridades como contribuição ao estado da arte moderna, desvela autores e incentivadores destacados em movimentações e resultados arquitetônicos para o templo cristão, afirmando suas importâncias e promovendo seu devido reconhecimento. Por tese, comprova a relevância da arquitetura do templo cristão como programa na modernidade, demonstrando sua continuidade, em quantidade e qualidade e evidenciando que a representação icônica do sagrado, que acontece através do tempo no templo, não se esvaiu ou perdeu-se nesse tempo histórico, tendo continuado o Cristianismo, através de outras construções marcantes, o trabalho inexorável de amparo e consolação espiritual a que se dedica a mais de dois milênios. / The study deals with the Christian temple in the modern period from 1920 to 1970 in order to rescue, to recognize and position this production, worthy of study in the context of twentieth century architecture. Panorama on the subject, has designed the compilation and systematization in chapels, parish churches and cathedrals, linking Christianity and modern times to identify and assess the liturgical and symbolic reflections, on the one hand, and functional, constructive and stylistic, the other, by a cross-relation of man and sacred art in the period. Critical historiography on the subject, besides gathering and lay judgments about the works by collecting general findings and peculiarities as a contribution to the state of modern art, unveils encouraging authors and movements in outstanding architectural and results for the Christian church, affirming their importance and promoting their due recognition. In theory, demonstrates the relevance of the Christian church architecture as a program in modernity, demonstrating its continuity, in quantity and quality, showing that the iconic representation of the sacred, what happens over time in the temple, not faded or lost at this time history, Christianity has continued through other landmark buildings, the relentless work of spiritual support and comfort that is dedicated to more than two millennia.

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