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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.
41

The sovereignty of the royal portrait in revolutionary and Napoleonic Europe : five case studies surrounding Maria Carolina, Queen of Naples

Goudie, Allison J. I. January 2014 (has links)
This study demonstrates how royal portraiture functioned during the Revolutionary and Napoleonic wars as a vehicle for visualizing and processing the contemporary political upheavals. It does so by considering a notion of the 'sovereignty of the portrait', that is, the semiotic integrity (or precisely the lack thereof) and the material territory of royal portraiture at this historical juncture. Working from an assumption that the precariousness of sovereignty which delineated the Revolutionary and Napoleonic wars goes hand in hand with the precariousness of representation during the same period, it reframes prevailing readings of royal portraiture in the aftermath of the French Revolution by approaching the genre less as one defined by the oneway propagation of a message, and more as a highly unstable intermedial network of representation. This theoretical undertaking is refracted through the figure of Maria Carolina, Queen of Naples (1752-1814), close sister and foil to Queen Marie- Antoinette of France, and who, as de facto ruler of the Kingdom of Naples, physically survived revolution but was twice dethroned and thrice exiled. A diverse ecology of royal portraiture revolving around Maria Carolina is presented across five case studies. Close attention to the materiality of a hyperrealistic wax bust of Maria Carolina reveals how portraiture absorbed the trauma of the French Revolution; Maria Carolina’s correspondence in invisible ink is used as a tool to read a highly distinctive visual language of 'hidden' silhouettes of sovereigns and to explore the in/visibility of exile; a novel reading of Antonio Canova's work for the Neapolitan Bourbons through the lens of contemporary caricature problematizes the binary between ancien régime and parvenue monarchy; and a unique miniature of Maria Carolina offers itself as a material metaphor for post-revolutionary sovereignty. Finally, Maria Carolina’s death mask testifies to how Maria Carolina herself became a relic of the ancien régime.
42

Věci a slova v poezii Georgiho Gospodinova / Things and Words in Georgi Gospodinov's Poetry

Zajac, Ondřej January 2011 (has links)
This MA thesis is primarily concerned with the poetics of the first two poetry collections by the Bulgarian writer Georgi Gospodinov. The said collections, Lapidarium and The Cherry Tree of One People were published for the first time in the 1990s. The first part of the thesis is devoted to the author's debut, Lapidarium; mainly, we are attempting to capture the collection's characteristic traits and draw attention to the conspicious features connecting this oeuvre with the book Tao Te Ching. In the second part we continue by the analysis of The Cherry Tree of One People. We are focusing on the change of the author's poetics and furthermore, we concetrate on the national/supranatural aspects of the texts. In the concluding part, we anchor Gospodinov's work in the wider context of the 1990s and provide a comparison of contemporary Czech and Bulgarian poetry.
43

Conception d'antennes de communication à travers le corps humain pour le suivi thérapeutique / Design of communication antennas throught the human body for the therapeutic monitoring

El Hatmi, Fatiha 21 March 2013 (has links)
Avec le développement rapide des technologies sans fil modernes et la miniaturisation des antennes et des systèmes électriques, l'emploi des antennes à l'intérieur du corps humain pour le suivi thérapeutique est devenu possible. Des batteries permettent d'alimenter ces antennes ; la réduction de la consommation de puissance implique l'augmentation de la durée de vie de circuits ingérables. Le corps humain, qui a une conductivité non nulle, n'est pas un milieu idéal pour la transmission des ondes RF à cause de l'atténuation liée aux propriétés diélectriques des tissus biologiques. Cependant, les tissus humains ne perturbent pas le champ magnétique car celui-ci dépend de la perméabilité du milieu qui est égale à un dans le corps humain. Bien que la puissance du champ magnétique décroisse avec l'exposant six de la distance, la technique utilisant les communications par induction magnétique en champ proche a été adoptée dans cette étude pour concevoir une liaison sans fil à faible portée à travers le corps humain. Durant ces travaux de thèse, après une caractérisation détaillée de la bobine d'émission située à l'intérieur du corps humain et de la bobine de réception localisée à sa surface, nous avons mis en place un bilan de liaison pour contribuer à l'amélioration du transfert de puissance dans ce milieu dissipatif. Un modèle analytique, déterminant les facteurs qui peuvent affecter le bilan de liaison par induction magnétique, a été vérifié à travers les simulations et les mesures. La variation de la position et de l'orientation de l'antenne ingérable ont été prises en compte pour évaluer la réponse de couplage entre la bobine émettrice et la bobine réceptrice. Les résultats obtenus constituent un pas en avant vers de futures recherches sur la conception de antennes dans les milieux dissipatifs et en particulier le corps humain / With the rapid growth of wireless technology and the miniaturization of modern antennas and electrical systems, the use of antennas inside the human body for therapeutic monitoring became possible. Batteries are used to supply these antennas; reducing the power consumption allows to increase the lifetime of ingestible systems. The human body, which has non-zero conductivity, is not an ideal environment for the transmission of RF waves because of the attenuation due to the dielectric properties of biological tissues. However, the human tissues do not disrupt the magnetic field as it depends on the permeability of the medium which is equal to one in the human body. Although the magnetic field power decreases with the distance exponent six, the technique using near-field magnetic induction communications was adopted in this study to design a short range wireless link through the human body. In this thesis, after a detailed characterization of the transmitting coil antenna located inside the human body and the receiving coil placed on its surface, we have implemented a link budget to contribute to the improvement of power transfer in the dissipative medium. An analytical model, identifying factors that can affect the link budget by magnetic induction, has been verified through simulations and measurements. The variation of the position and the orientation of the ingestible antenna were taken into account to evaluate the coupling response between the transmitting coil and the receiving coil. The results are a step toward future research on the design of antennas in dissipative media, in particular the human body
44

Ruční palné zbraně na Blízkém východě. Počátky, výroba a použití. / Firearms in the Middle East. Beginnings, Production and Use.

Beran, Pavel January 2011 (has links)
This thesis deals with the development of the hand-held firearms in the Middle East with an emphasis on the period from the 15th to the end of the 18th century. In some passages it also marginally mentions the early 19th century. The first part of the thesis concentrates on the development of firearms in a historical context. The focus is primarily on the Ottoman Empire and partially on Egypt. Among other topics it also analyses the practical use of firearms and the related military tactics including the presence of firearms in major battles, as shown on contemporary paintings and miniatures. In the second part the author deals with the technical development of hand-held firearms. This section focuses mostly on the components of firearms and their development. This section also in some degree deals with the artistic aspects of the preserved firearms. The supplements consist of numerous photographs of the preserved exhibits in Czech and foreign collections and also of other visual materials. Keywords firearms, gunpowder, Middle East, Ottoman Empire, Mamluks, Egypt, flintlock, matchlock, miquelet, stock, barrel, decoration, miniatures
45

Conception de systèmes multi-antennaires pour techniques de diversité et MIMO : application aux petits objets nomades communicants / Design of multi-antenna systems for diversity and MIMO techniques : applications to small communicating devices

Dioum, Ibra 12 December 2013 (has links)
La demande de transmissions à débits de plus en plus élevés s’accentue davantage avec l’essor de nouveaux services dans les réseaux de communication sans fils. Pour répondre à cette demande, une solution consiste à augmenter la capacité de transmission du canal radiofréquence entre la station de base et le terminal portatif. Ceci peut être réalisé en augmentant le nombre d’éléments rayonnant impliqués à l’émission et à la réception de cette liaison radiofréquence : on parle alors de technique MIMO (Multiple Input, Multiple Output). Cette thèse porte principalement sur la conception, l’optimisation et la caractérisation de systèmes multi-antennaires pour techniques de diversité et MIMO en bandes LTE (Long Term Evolution). Trois prototypes multi-bandes sont proposés dont deux systèmes planaires et un système d’antennes IFAs compactes. De nouvelles solutions multi-bandes et l’influence de la position de l’antenne sur le plan de masse sont étudiées pour réaliser de la diversité spatiale, de polarisation et de diagramme de rayonnement avec une faible corrélation entre les signaux reçus sur chaque antenne mais surtout une bonne efficacité totale. Une ligne de neutralisation est utilisée pour isoler les antennes et un fonctionnement multi-bande est réalisé. L’impédance d’entrée des antennes est étudiée avec la méthode de Youla & Carlin afin d’améliorer la bande passante de la structure compacte de type IFA. Les performances en diversité et en MIMO de ces systèmes sont évaluées dans différents environnements de propagation. Elles montrent que ces systèmes peuvent être utilisés efficacement pour des applications en diversité et MIMO. / The transmission demand for increasing data rate becomes more and more important with the development of new services in radio communication networks. To answer to this demand, one solution consists in increasing the transmission capacity of the radio channel between the base station and the handset terminal. This can be realized by increasing the number of radiating elements involved in the transmission and the reception of this radio link: we talk about MIMO (Multiple Input Multiple Output) technique. The work realized in this thesis concerns mainly design, optimization and characterization of multi-antenna systems for MIMO and diversity techniques in LTE (Long Term Evolution) bands. Three multi bands prototypes are proposed whose two planar systems and one compact IFAs antennas system. News multiband solution and antenna position influence on the PCB were studied to realize spatial, polarization and pattern diversity with low correlation between received signals on each antenna and a good efficiency. The neutralization line was used for antennas isolation and its application in multiband was realized. The antenna load impedance has been studied with Youla & Carlin method in order to improve the frequency bandwidth of the compact IFA structure. Diversity and MIMO performances of these systems were evaluated in different propagation environments. They show that these systems can be effectively used for diversity and MIMO application.
46

L'œuvre du peintre alépin Youssef Al-Musawwer. Contribution à l'essor de la peinture religieuse melkite au XVIIe siècle / The Work of the Aleppine Painter Yusuf Al-Musawwer. Contribution to the Re-vival of Melkite Religious Painting in the Seventeenth Century

Nassif, Charbel 04 May 2017 (has links)
Le prêtre Youssef Al-Musawwer est un peintre melkite alépin du XVIIe siècle qui aurait été initié à la peinture postbyzantine à l’étranger dans une région grecque qui demeure difficile à identifier. Il est le chef d’une descendance de peintres qui s’est poursuivie sans discontinuité jusqu’à la fin du XVIIIe siècle. Son œuvre s’inscrit dans le cadre de la renaissance littéraire du patriarcat melkite d’Antioche. Il était à la fois traducteur, copiste, miniaturiste et peintre d’icônes. Nous comptons dix-sept icônes et cinq manuscrits enluminés de Youssef Al-Musawwer. Notre étude a démontré l’attachement de Youssef Al-Musawwer aux œuvres crétoises conservatrices qui remontent aux XVe-XVIe siècles et qui s’éloignent des influences de la Renaissance italienne. Il s'est également inspiré des modèles iconographiques du Nord de la Grèce, de la peinture arménienne et ottomane ainsi que des ouvrages imprimés occidentaux. Youssef Al-Musawwer eut recours à l’hagiographie et à la liturgie pour créer de nouvelles compositions iconographiques. Il n’était pas par conséquent un peintre imitateur et passif. Ses compositions iconographiques, ses connaissances linguistiques ainsi que ses vastes compétences théologiques et liturgiques font de lui un éminent humaniste du XVIIe siècle qui a marqué l’Église melkite. / Yusuf Al-Musawwer is a Melkite painter and priest from the 17th century. He might have been initiated to Postbyzantine painting abroad in a Greek region that remains difficult to identify. He is the first of a family of painters who continued his path without discontinuity until the end of the 18th century. His work is part of the literary revival of the Melkite patriarchate of Antioch. He was a translator, a copyist, a miniaturist and a painter of icons. Seventeen icons and five illuminated manuscripts realized by Yusuf Al-Musawwer have survived. Our study has demonstrated Yusuf Al-Musawwer's attachment to Cretan conservative works dating back to the 15th-16th centuries and which moved away from the influences of the Italian Renaissance. He was also inspired by the iconographic models of Northern Greece, Armenian and Ottoman painting, as well as Western printed books. Yusuf Al-Musawwer was inspired by hagiography and liturgy to create new iconographic compositions. Therefore, he was not an imitative, passive painter. His iconographic compositions, his linguistic knowledge, and his vast theological and liturgical skills made him an eminent 17th century humanist who marked the Melkite Church.
47

Contrôle du rayonnement des antennes miniatures / Radiation pattern control in electrically small antennas

Belmkaddem, Kawtar 11 May 2015 (has links)
Dans le contexte actuel où l’évolution des systèmes sans-fil est jugée importante, il estnécessaire de pouvoir réduire les pollutions électromagnétiques qui limitent l’acceptabilité descommunications et la cohabitation des systèmes. D’une façon générale, les besoins de contrôle durayonnement des antennes miniatures répondent donc à une demande croissante pour améliorer lesportées mais aussi pour limiter les interférences dans les systèmes sans-fil. Ces dernières années,malgré le développement connu dans les domaines des antennes, la question du contrôle durayonnement des antennes miniatures connait plusieurs barrières empêchant leur déploiementtechnologique. L’approche retenue dans le cadre de cette thèse est le développement de nouveauxconcepts de contrôle du rayonnement des antennes miniatures par la mise en oeuvre de différentestechniques. Cette étude a pour objectif de soulever quelques questions concernant un sujet d’étude peuexploré. / In the current context where the evolution of communicating objects is important indifferent growing fields such as: localization, wireless multimedia systems, etc., controlling theradiation pattern of antennas is one of the most important issues for future radio communicationsystems. In recent years, despite the growth experienced in the areas of antennas, the issue of smallantennas radiation control knows several barriers preventing their deployment. This thesis focuses onthe analysis of the problem of controlling the radiation pattern of small antennas and aims to raisesome questions about a little-explored subject of study. This work gives an approach using differenttechniques to develop new concepts of controlling the radiation pattern of antennas.

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