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The Global ETD Search service is a free service for researchers
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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.
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Showing 641 to 647 of 647 (0.015 seconds)| 641 |
Etude des non-linéarité photoréfractives dans les composés semi-isolants III-V et II-VI : influence d'une irradiation électroniqueDelaye, Philippe 06 April 1993 (has links) (PDF)
Ce manuscrit présente l'étude de l'effet photorefractif dans le proche infrarouge et, plus particulièrement, l'étude des matériaux sensibles dans cette gamme de longueurs d'onde. la première partie du travail a consiste a étudier les matériaux existants, provenant de la microélectronique, le GaAs et l'InP. Les études réalisées, tant expérimentales que théoriques, ont permis de comprendre leurs propriétés et de mettre en évidence leurs limitations, notamment pour les applications dans la gamme de longueurs d'onde autour de 1,3 m. au vu de ces résultats, nous avons propose une technique d'optimisation des performances de gaas utilisant l'irradiation électronique. L'irradiation induit une légère variation du niveau de fermi, qui doit favoriser l'effet photorefractif a 1,3 m. Les résultats obtenus ont montre que l'effet attendu était fortement contrebalance par la création au milieu de la bande interdite, d'un défaut d'irradiation. L'influence directe de ce défaut a été établie grâce au développement d'un modèle théorique de l'effet photorefractif prenant en compte deux niveaux de pièges profonds. En parallèle a cette étude de l'effet d'irradiation, nous avons travaille sur les composes ii-vi, comme le CdTe. Les premiers cristaux étudiés présentent des gains photorefractifs intéressants avec des faisceaux de faible puissance. Ces résultats confirment les promesses de ces cristaux pour une extension de l'effet photorefractif vers 1,5 m. Pour finir, nous présentons une technique d'amplification du gain photorefractif qui utilise l'application d'un champ alternatif carre. une augmentation du gain d'un ordre de grandeur est obtenue.
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Seven Movements from "Missa Festiva" (1817) of Marcos Portugal (1762–1830): A Vocal Score with Critical CommentaryBrites Pereira David Coelho, Júlia 05 1900 (has links)
Marcos António da Fonseca Portugal (1762–1830) is considered by several Luso-Brazilian musicologists to be the most prolific and influential Portuguese composer in history, having impacted the Portuguese and Brazilian music scene significantly during his lifetime. Marcos Portugal achieved international fame for his large-scale works, which include sacred compositions, Italian opera seria, as well as farsas and opera buffa in Portuguese. Despite the reputation he achieved during his lifetime, today his works are understudied and underperformed, even in Lusophone countries. Such an oversight is noticeable particularly as regards his sacred music corpus. For this reason, I have chosen Missa Festiva (1817) as the subject of this dissertation. Creating a vocal score of the solo, duo and trio movements of Missa Festiva will be helpful not only for performers, but also for scholars and conductors who wish study this work. A vocal score makes accessible the performance of individual movements when only piano, organ, or another keyboard instrument is available. By facilitating the performance and analysis of Missa Festiva, this document will contribute to the work's dissemination and to a better understanding of the value of early nineteenth-century Luso-Brazilian virtuosic vocal sacred music. The manuscript used for the transcription and orchestral reduction into a vocal score of movements III-IX is BR-Rcm MS CRI-SM59 from the Acervo Musical do Cabido Metropolitano do Rio de Janeiro, from 1818 (images included in the dissertation).
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České země a avignonské papežství v letech 1378-1419, diplomatické aspekty / The Czech lands and the avignon papacy in the period 1378-1419, diplomatic aspectsVlková, Tereza January 2012 (has links)
0 ABSTRACT In my thesis I focus on the political situation in the Kingdom of Bohemia and the Kingdom of France during the Great Western Schism, particularly its first two thirds. I put emphasis on the personality of Honoré Bovet, who was a diplomat and a messenger of the French king and who visited the court of the Bohemian king, Wecleslas IV. in 1399 My work is based on primary and secondary sources and scientific and specialised literature concerning the subject mentioned above. In addition I made use of my one- semester study program in France where I attended the lectures of and consultations with French medieval historians. First I describe in the thesis the ecclesiastical and political situation in both kingdoms. The next chapters are dedicated to the personality of Honoré Bovet and his writings related to his opinion on the Great Western Schism and the church in general. As a result of the research I present a general attitude of the French Kingdom to the Bohemian Kingdom, particularly king Wenceslas IV, in the period of the Great Western Schism and the dual papacy. Moreover, based on his writings I express Bovet's view of the Schism and the personalities involved in the Schism.
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Political Atheism vs. The Divine Right of Kings: Understanding 'The Fairy of the Lake' (1801)Post, Andy 30 April 2014 (has links)
In 'Political Atheism vs. The Divine Right of Kings,' I build on Thompson and Scrivener’s work analysing John Thelwall’s play 'The Fairy of the Lake' as a political allegory, arguing all religious symbolism in 'FL' to advance the traditionally Revolutionary thesis that “the King is not a God.”
My first chapter contextualises Thelwall’s revival of 17th century radicalism during the French Revolution and its failure. My second chapter examines how Thelwall’s use of fire as a symbol discrediting the Saxons’ pagan notion of divine monarchy, also emphasises the idolatrous apotheosis of King Arthur. My third chapter deconstructs the Fairy of the Lake’s water and characterisation, and concludes her sole purpose to be to justify a Revolution beyond moral reproach. My fourth chapter traces how beer satirises Communion wine, among both pagans and Christians, in order to undermine any religion that could reinforce either divinity or the Divine Right of Kings. / A close reading of an all-but-forgotten Arthurian play as an allegory against the Divine Right of Kings.
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Sovereignty, Peacekeeping, and the United Nations Emergency Force (UNEF), Suez 1956-1967: Insiders’ PerspectivesHilmy, Hanny 13 February 2015 (has links)
This research is concerned with the complex and contested relationship between the sovereign prerogatives of states and the international imperative of defusing world conflicts. Due to its historical setting following World War Two, the national vs. international staking of claims was framed within the escalating imperial-nationalist confrontation and the impending “end of empire”, both of which were significantly influenced by the role Israel played in this saga. The research looks at the issue of “decolonization” and the anti-colonial struggle waged under the leadership of Egypt’s President Nasser. The Suez War is analyzed as the historical event that signaled the beginning of the final chapter in the domination of the European empires in the Middle East (sub-Saharan decolonization followed beginning in the early 1960s), and the emergence of the United States as the new major Western power in the Middle East.
The Suez experience highlighted a stubborn contest between the defenders of the concept of “sovereign consent” and the advocates of “International intervention”. Both the deployment of the United Nations Emergency Force (UNEF) and its termination were surrounded by controversy and legal-political wrangling. The role of UNEF and UN peacekeeping operations in general framed the development of a new concept for an emerging international human rights law and crisis management. The UNEF experience, moreover, brought into sharp relief the need for a conflict resolution component for any peace operation. International conflict management, and human rights protection are both subject to an increasing interventionist international legal regime. Consequently, the traditional concept of “sovereignty” is facing increasing challenge.
By its very nature, the subject matter of this multi-dimensional research involves historical, political and international legal aspects shaping the research’s content and conclusions. The research utilizes the experience and contributions of several key participants in this pioneering peacekeeping experience. In the last chapter, recommendations are made –based on all the elements covered in the research- to suggest contributions to the evolving UN ground rules for international crisis intervention and management. / Graduate / hilmyh@uvic.ca
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Intelligent Energy-Savings and Process Improvement Strategies in Energy-Intensive Industries / Intelligent Energy-Savings and Process Improvement Strategies in Energy-Intensive IndustriesTeng, Sin Yong January 2020 (has links)
S tím, jak se neustále vyvíjejí nové technologie pro energeticky náročná průmyslová odvětví, stávající zařízení postupně zaostávají v efektivitě a produktivitě. Tvrdá konkurence na trhu a legislativa v oblasti životního prostředí nutí tato tradiční zařízení k ukončení provozu a k odstavení. Zlepšování procesu a projekty modernizace jsou zásadní v udržování provozních výkonů těchto zařízení. Současné přístupy pro zlepšování procesů jsou hlavně: integrace procesů, optimalizace procesů a intenzifikace procesů. Obecně se v těchto oblastech využívá matematické optimalizace, zkušeností řešitele a provozní heuristiky. Tyto přístupy slouží jako základ pro zlepšování procesů. Avšak, jejich výkon lze dále zlepšit pomocí moderní výpočtové inteligence. Účelem této práce je tudíž aplikace pokročilých technik umělé inteligence a strojového učení za účelem zlepšování procesů v energeticky náročných průmyslových procesech. V této práci je využit přístup, který řeší tento problém simulací průmyslových systémů a přispívá následujícím: (i)Aplikace techniky strojového učení, která zahrnuje jednorázové učení a neuro-evoluci pro modelování a optimalizaci jednotlivých jednotek na základě dat. (ii) Aplikace redukce dimenze (např. Analýza hlavních komponent, autoendkodér) pro vícekriteriální optimalizaci procesu s více jednotkami. (iii) Návrh nového nástroje pro analýzu problematických částí systému za účelem jejich odstranění (bottleneck tree analysis – BOTA). Bylo také navrženo rozšíření nástroje, které umožňuje řešit vícerozměrné problémy pomocí přístupu založeného na datech. (iv) Prokázání účinnosti simulací Monte-Carlo, neuronové sítě a rozhodovacích stromů pro rozhodování při integraci nové technologie procesu do stávajících procesů. (v) Porovnání techniky HTM (Hierarchical Temporal Memory) a duální optimalizace s několika prediktivními nástroji pro podporu managementu provozu v reálném čase. (vi) Implementace umělé neuronové sítě v rámci rozhraní pro konvenční procesní graf (P-graf). (vii) Zdůraznění budoucnosti umělé inteligence a procesního inženýrství v biosystémech prostřednictvím komerčně založeného paradigmatu multi-omics.
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Johann Friedrich von Uffenbach. Sammler – Stifter – Wissenschaftler / Johann Friedrich von Uffenbach. Collector - Donor - ScientistMeyerhöfer, Dietrich 28 January 2020 (has links)
No description available.
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