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Tengholm, Erik. "Solist med storband." Thesis, Kungl. Musikhögskolan, Institutionen för jazz, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kmh:diva-3106.
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This project deals with the different aspects and problems that I associate with being a soloist with a big band, playing my own music. I put together a big band with some of my favorite musicians, wrote four arrangements on original tunes and played them on a concert at The Royal College of Music on the 7th of March 2019. In the arranging process, I tried to focus on making my trumpet playing sound as natural as possible. The goal throughout the whole project has been to make the music match my trumpet playing and improvisational sound.Medverkande: Sebastian Jonsson, Leonard Werme, Björn Bäckström , Samuel Muntlin, Emma Josefsson (träblås), Erik Tengholm, Isac Åberg, Max Stark, Linnea Jonsson, Emma Granstam (trumpet), Lars Ullberg, Agnes Darelid, Hampus Adami, Simon Skogh (trombon), Mattias Olofsson (gitarr), Anna Gréta Sigurdardóttir (piano), Johan Tengholm (kontrabas), Oscar Johansson Werre (trummor).
Till uppsatsen bifogas inspelningar av mina egna kompositioner som är kopplade till arbetet: Complexity of Love, Motljus, Livejazzbaren och Island.
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Erlandsson, Fredrik. "Fredrik Erlandsson & his Orchestra. En konsert för storband och solist." Thesis, Kungl. Musikhögskolan, Institutionen för jazz, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kmh:diva-906.
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Risberg, Anna. "En röst i flera roller : En studie av sångarens roll som solist eller del av en ensemble eller kör." Thesis, Luleå tekniska universitet, Institutionen för konst, kommunikation och lärande, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81724.
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Syftet med det här projektet har varit att studera min roll som sångare när jag är solist eller del av en ensemble eller kör. Jag har tittat på både röstliga och utomröstliga aspekter. För att studera detta har jag genomfört två konstnärliga projekt där jag själv sjungit som solist och som del av en ensemble eller kör.I det ena projektet studerade jag in och framförde musik för solokvartett respektive kör och i det andra projektet musik för solist och sångensemble. I båda projekten sjöng jag de solistiska partierna och medverkade kör och ensemble. Därefter analyserade jag resultaten från de konstnärliga projekten utifrån mina frågeställningar. Jag har också tagit stöd i tidigare forskning samt intervjuat tre professionella sångare aktiva som både solister och korister samt en kördirigent.Som slutsats framkommer att jag inte gör några stora skillnader gällande min sångteknik i de olika rollerna som solist respektive korist. Homogenitet i ensemblerna uppnås istället genom att sångarna använder en likartad röstteknik, har samma typ av röstideal och ett fullt lyssnande. På så sätt har sångare goda möjligheter att sjunga med full röst även i ensemble eller kör, och det behöver inte vara ett problem att ägna sig åt båda delarna.
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Silva, Flavio Gabriel Parro da. "A construção de um solista : um estudo multicasos com trompetistas solistas internacionais /." São Paulo, 2019. http://hdl.handle.net/11449/191275.
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Orientador: Sonia Regina Albano de LimaResumo: O estudo de multicasos que se segue teve como objetivo investigar os processos de formação de um solista internacional de trompete mediante a análise da trajetória de vida de nove trompetistas com reconhecida carreira internacional, utilizando como parâmetros de análise os estágios de desenvolvimento propostos pela ciência da expertise. Para tanto realizou-se uma pesquisa qualitativa fundamentando-se em revisão de literatura. A revisão de literatura concentrou-se em textos relacionados ao desenvolvimento da expertise em todas as áreas de conhecimento e principalmente, no desenvolvimento da expertise em música. Os trompetistas solistas escolhidos foram: Rafael Méndez, Timofei Dokshizer, Maurice André, Wynton Marsalis, Håkan Hardenberger, Ole Antonsen, Sergei Nakariakov, Alison Balsom e Pacho Flores. Para a análise do material coletado foram utilizados os estágios de desenvolvimento da expertise propostos pelos pesquisadores Anders Ericsson (2016), Isabela Wagner (2015), Rena Subotnik e Linda Jarvin (2005) os quais compõem o referencial teórico de presente pesquisa. A partir dos dados coletados e das análises efetuadas, foi possível identificar similaridades entre a trajetória de vida dos solistas escolhidos e os estágios propostos pelos autores de referência e, assim, apontar aspectos inerentes à formação do trompetista-solista. Os resultados dos estudos desenvolvidos permitiram a elaboração de um quadro com quatro estágios do desenvolvimento trilhados pelos trompetistas solis... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The following multicase study aimed to investigate the processes of formation of an international trumpet soloist by analyzing the life trajectory of nine trumpeters with recognized international careers, using as parameters of analysis the stages of development proposed by the science of expertise. Therefore, a qualitative research was conducted based on literature review. The literature review focused on texts related to the development of expertise in all areas of knowledge and especially the development of expertise in music. The soloist trumpeters chosen were: Rafael Méndez, Timofei Dokshizer, Maurice André, Wynton Marsalis, Håkan Hardenberger, Ole Antonsen, Sergei Nakariakov, Alison Balsom and Pacho Flores. For the analysis of the collected material were used the stages of development of expertise proposed by the researchers Anders Ericsson (2016), Isabela Wagner (2015), Rena Subotnik and Linda Jarvin (2005) which make up the theoretical framework of this research. From the collected data and the analyzes performed, it was possible to identify similarities between the life path of the chosen soloists and the stages proposed by the reference authors and, thus, to point out aspects inherent to the formation of the soloist trumpeter. The results of the developed studies allowed the elaboration of a four-stage framework of development followed by the soloist trumpeters surveyed as a conclusion of the research. It is hoped that this framework and the reasoning that justifies... (Complete abstract click electronic access below)
Résumé: L’étude multicase suivante visait à étudier les processus de formation d’un soliste de trompette international en analysant la trajectoire de vie de neuf trompettes ayant des carrières internationales reconnues, en utilisant comme paramètres d’analyse les stades de développement proposés par la science de l’expertise. Par conséquent, une recherche qualitative a été menée sur la base d’une revue de la littérature. La revue de la littérature s'est concentrée sur les textes relatifs au développement de l'expertise dans tous les domaines de la connaissance et en particulier au développement de l'expertise en musique. Les trompettistes solistes choisis étaient: Rafael Méndez, Timofei Dokshizer, Maurice André, Wynton Marsalis, Håkan Hardenberger, Ole Antonsen, Sergei Nakariakov, Alison Balsom et Pacho Flores. Pour l'analyse du matériel collecté, nous avons utilisé les étapes de développement de l'expertise proposée par les chercheurs Anders Ericsson (2016), Isabela Wagner (2015), Rena Subotnik et Linda Jarvin (2005) qui composent le cadre théorique de cette recherche. À partir des données collectées et des analyses effectuées, il a été possible d'identifier des similitudes entre le chemin de vie des solistes choisis et les étapes proposées par les auteurs de référence et, ainsi, de souligner les aspects inhérents à la formation du trompettiste soliste. Les résultats des études développées ont permis d'élaborer un cadre de développement en quatre étapes suivi par les trompettistes s... (Résumé complet accès életronique ci-dessous)
Doutor
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Costa, Mariana Conceição da 1977. "Determinação experimental do equilibrio solido-liquido de sistemas binarios de acidos graxos saturados : estudo detalhado da fase solida." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266228.
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Orientadores: Maria Alvina Krahenbuhl, Antonio Jose de Almeida MeirellesTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
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Resumo: Os ácidos graxos são importantes não só por serem os principais constituintes dos óleos e gorduras de origem vegetal, mas também por terem grande importância no funcionamento de alguns sistemas lipídicos e porque podem ser usados como matéria prima na fabricação de emulsões, plásticos e produtos de limpeza entre outros. Além da grande influência que causam nas características finais de alguns produtos da indústria alimentícia, recentemente pesquisas também os apontam como bons materiais para o armazenamento de energia (phase change materials ¿ PCMs). Nesse trabalho são apresentados diagramas T-x do Equilíbrio Sólido-Líquido de sistemas binários de ácidos graxos saturados através de uma reinterpretação das curvas térmicas obtidas pela calorimetria exploratória diferencial. Esses diagramas de fase apresentam os pontos peritético e eutético além de transições na fase sólida. Esse trabalho investiga detalhadamente a fase sólida das misturas de ácidos graxos saturados, com a intenção de compreender a existência do ponto peritético e das transições na fase sólida que aparecem nos diagramas de equilíbrio. Para esse estudo foram usadas as técnicas de difração de Raios-X, de espalhamento Raman, a microscopia óptica convencional, a microscopia óptica a altas pressões e a calorimetria exploratória diferencial, através da qual foram determinados os diagramas de fase estudados. Através desse estudo foi possível apresentar um diagrama de fases muito mais complexo do que até agora foi encontrado na literatura. Essa complexidade se deve, além da reação peritética e da reação eutética, já conhecidas desses sistemas, a uma reação metatética que ocorre logo acima da temperatura peritética. Também há a formação de solução sólida nos extremos do diagrama de fases, comprovada através do diagrama de Tamman e a uma região de completa miscibilidade, devido à formação de um composto com ponto de fusão incongruente.
Abstract: Fatty acids are important not just to be the main constituent of oils and fats but also because of the important behavior of lipids systems and that can be used as row materials in the manufacture of emulsions, plastics and products for cleaning and others. Besides of the big influenced that causes in the final characteristics of some products for food industries recent research points that they are excellent phase change materials (PCMs). This work presents T-x diagrams of solid-liquid equilibrium of binary systems of saturated fatty acids through the reinterpretation of the differential thermal curves obtained by differential scanning calorimetry. These phase diagrams presents the peritectic and eutectic points besides the transitions on the solid phase. This work studies the solid phase of saturated fatty acids mixtures looking forward to verify the occurrence of the peritectic point and the transitions on the solid phase. For this study it was used the following techniques: X-ray diffratometry, FT-Raman spectroscopy, conventional optical microscopy, optical microscopy under high pressure and differential scanning calorimetry. The phase diagrams studied were determined by differential scanning calorimetry. The results obtained through these techniques shows a phase diagram more complex than previously reported in the literature. This complexity is due to a peritectic and eutectic, and to a metatectic reaction that occurs closer to the peritectic temperature. Besides these reactions there is formation of solid solution on the extremes of the phase diagram proven by the Tamman plot and the existence of a region with complete miscibility, close to the peritectic point, due the formation of a compound with incongruently melting point.
Doutorado
Desenvolvimento de Processos Químicos
Doutor em Engenharia Química
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Lachat, Sarrete Priscille. "L’entrée du soliste dans les concertos de 1750 à 1810, à travers les œuvres de Johann Christian Bach, Haydn, Mozart, Viotti et Beethoven." Thesis, Paris 4, 2010. http://www.theses.fr/2010PA040052/document.
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Entre 1750 et 1810, l’entrée du soliste dans les premiers mouvements de concerto est un événement théâtral et musical. Examinant le corpus de Johann Christian Bach, Haydn, Mozart, Viotti et Beethoven, cette thèse distingue les stratégies compositionnelles récurrentes, constituant la norme de l’époque étudiée. Elle analyse les procédés rhétoriques à l’œuvre en évaluant l’effet produit par chacun par rapport à la norme attendue.La première partie concerne la construction de l’attente du soliste. Elle évalue la fonction introductive du premier tutti, distinguant les « tuttis-cadre » des « tuttis-narratifs » et examinant l’impact de la présence d’une modulation. La deuxième partie étudie les stratégies de clôture de l’exposition orchestrale et l’existence d’une rupture lors de l’entrée du soliste. La troisième partie montre la manière de donner la parole au soliste par le choix de son thème d’entrée, d’une ornementation éventuelle ou l’ajout d’une section introductive virtuose autonomeBetween 1750 and 1810, the entry of the soloist in the first movement of a concerto is a musical and theatrical event. Going through the corpus of Johann Christian Bach, Haydn, Mozart, Beethoven, and Viotti, this thesis distinguishes personal strategies from recurring compositional techniques that are standard in the period under review. It analyzes the rhetorical techniques used through assessing the effect of each technique compared to that of the expected standard.The first part concerns the construction of the expectation of the soloist. It evaluates the introductive function of the first tutti, creating a disctinction between “frame-tuttis” and “narrative tuttis”, and examinating the impact of the presence of a modulation. The second part focusses on the closing strategies of the orchestral exposition and the existence of a break for the soloist’s entry. The third part shows the hand over to the soloist through the choice of the entry theme, the eventual ornementation, and the adding of an autonomous virtuoso introductive section
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Azrak, Edy Edward. "Croissance et caractérisation des Nanofils GeSn et SiSn obtenue par le mécanisme Solide-liquide-Solide." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMR135/document.
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L’alliage germanium-étain est un semiconducteur qui suscite une grande attention en raison de ses propriétés électriques et optiques. L’incorporation de Sn dans le germanium permet d’ajuster la largeur de bande interdite (gap) et d’améliorer la mobilité des électrons et des trous, et pour une quantité suffisante d’étain, le matériau passe d’un gap indirect à direct. Cet alliage est versatile parce qu’il peut être intégré d’une façon monolithique sur le Si, c’est ce qui en fait un matériau idéal dans les domaines de l'optoélectronique à base de silicium. Cette thèse est sur la fabrication et la caractérisation de nanofils cristallins Ge1-xSnx à haute concentration en Sn. Des nouvelles stratégies ont été employées pour fabriquer de nombreux types de nanofils GeSn. Les résultats ont été expliqués en fonction des modèles cinétiques existants. Un nouveau mécanisme de croissance y est décrit: le mécanisme solide-solide-solide – SSS. Il consiste à faire croître des nanofils de GeSn dans le plan du substrat à l’aide de catalyseurs d’étain à une température inférieure au point de fusion de Sn. Quatre modèles de transport de masse sont proposés pour le mécanisme de croissance du SSS. Diverses caractérisations (par exemple TEM et APT) ont été effectuées pour étudier les propriétés physiques, et chimiques des nanofilsGermanium-Tin alloy is a unique class semiconductor gaining a strong attention because of its significant electrical and optical properties. Sn incorporation in Ge allows straightforward band-gap engineering enabling to enhance the electron and hole mobilities, and for a sufficient Sn amount an indirect-to-direct band-gap transition occurs. Its versatility rises due the possible monolithic integration on Si-platforms making it an ideal material in domains of optoelectronics, and high speed electronic devices. This thesis has focused on the fabrication and characterization of crystalline Ge1-xSnx nanowires with high Sn concentrations. New strategies were designed to fabricate many types of GeSn nanowires. The results have been explained as function of the existing kinetic models. A new growth mechanism was reported (i.e. Solid-Solid-Solid mechanism – SSS), it consists of growing in-plane GeSn nanowires using Sn catalysts below the melting point of Sn. Four mass transport models were proposed for the SSS growth mechanism. Various characterizations (e.g. TEM and APT) were done to investigate the physical and chemical properties of the obtained nanowires
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Silveira, Ricardo Jorge Castro Tavares Moreira da. "Keiko Abe e a Marimba Solista." Master's thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/18246.
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A percussionista japonesa Keiko Abe desempenhou um papel fundamental no desenvolvimento da marimba tal como a conhecemos hoje. A sua influência foi de tal maneira importante que podemos falar, claramente, de um pré- e de um pós- Keiko Abe. Para isso foi determinante a sua actividade em todas as áreas relativas ao instrumento, nomeadamente a criação de um reportório escrito especificamente para a marimba, a evolução e consolidação do instrumento físico enquanto veículo de transmissão musical e expressiva e, por fim, o desenvolvimento do recital de marimba solista. O objectivo último de todos estes processos foi o de permitir à marimba tornar-se num instrumento de concerto, ao nível de outros já instituídos na tradição musical europeia; ABSTRACT: Japanese percussionist Keiko Abe played a fundamental role in the development of the marimba as we know it today. This musician´s influence had such a degree of importance that we can clearly divide the history of the instrument in two parts: one before, and another after Keiko Abe. Abe´s activities in all areas concerning the instrument were crucial for this outcome. We speak, mainly, of the following: the creation of a body of repertoire written specifically for the marimba; the evolution and consolidation of physical aspects of the instrument in order to allow it to become a suitable vehicle of musical expression; and, last but not least, the development of the solo marimba recital. The goal of all these processes was to transform the marimba into a concert instrument, and one at the same level of other already established instruments in the concert world. NOTA: Esta tese tem um recital que não é possível colocar no repositório, deve consultar o documento presencialmente na biblioteca.
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Liu, Weidong. "High density solids downflow gas-solids reactors." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0001/MQ42081.pdf.
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Silva, Vinicius Maurício Queiróz Hipólito da. "Três momentos do violão solista em Goiânia." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8994.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
In preliminary researches we have noticed the existence of a significant tradition of guitar solo in the city of Goiânia still rarely addressed in scientific papers. Thus, the present study presents a historical narrative of this musical practice during the period that covers the end of the 19th century until nowadays. This time frame was split into three stages, defined according to the acute transformations of the guitar solo activity in the city. It was elected for each of these stages one representative composer, Odilon Kneipp Fleury Curado (1898-1980), Sebastião Martins de Oliveira (1911-1977) and Estércio Marquez Cunha (1941-), whose compositions was examined in the last part this research. This research has been divided into four chapters: I – The guitar consolidation process in concert music in Brasil; II – The guitar solo in the city of Goiânia; III – Evaluation and analysis of works and Final considerations. As background of our historical approach we have used the concepts of some authors of Cultural History, such as Bakhtin, Pesavento, Freire and Burke. For the musical analysis, addressed in chapter 3, we have used Nattiez’s theory.
Em pesquisas preliminares notamos a existência de uma relevante tradição do violão solista na cidade de Goiânia ainda muito pouco discutida em trabalhos científicos. Desta forma, esta pesquisa apresenta uma narrativa histórica da trajetória desta prática em um recorte temporal que abrange o período final do séc. XIX até a atualidade. Todo este intervalo de tempo foi dividido em três momentos, definidos a partir das transformações mais agudas identificadas com relação ao violão solista nesta cidade. Foi eleito para cada um destes momentos um compositor representante, a saber, Odilon Kneipp Fleury Curado (1898-1980), Sebastião Martins de Oliveira (1911-1977) e Estércio Marquez Cunha (1941-), cujas obras foram analisadas na última etapa deste trabalho. A pesquisa foi dividida em quatro capítulos: I – O processo de consolidação do violão na música de concerto no Brasil, II – O violão solista na cidade de Goiânia, III – Apreciação e análise das obras e Considerações Finais. Como pano de fundo de nossa abordagem histórica fizemos uso de alguns dos conceitos de teóricos da História Cultural, como Bakhtin, Pesavento, Freire e Burke. A análise musical teve como arcabouçou teórico a abordagem de Nattiez.
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Neikirk, Anne L. "SYMPHONIC PRAYERS FOR ORCHESTRA AND SOPRANO SOLOIST." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/252939.
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Music CompositionD.M.A.
Symphonic Prayers is a work for orchestra and soprano soloist in four movements. The work uses four poems from Rainer Maria Rilke's collection Das Stundenbuch (The Book of Hours), written between 1895 and 1903. Rilke was a Bohemian poet, mystic, traveler, and lover of art and nature. He narrates The Book of Hours through a fictional Russian monk who converses with God and reflects upon the nature of the world through the poetry. Rilke's poems delicately weave together the joys and struggles of a faith journey and of finding one's place in the world and in eternity. Equally striking is the beauty with which he utilizes the German language. There is an irresistible rhythm and nuance to his words. The four poems I chose each reflect a different category of prayer derived from the Christian faith tradition. A common prayer model utilized in the Protestant church is abbreviated by the acronym "ACTS," which stands for adoration, confession, thanksgiving and supplication. The ACTS prayers guide the worshipper through four methods of praying: expressing adoration for God, confessing sins and shortcomings, showing gratitude and thanksgiving, and asking for help for oneself and others. I modeled each movement of Symphonic Prayers after these categories and chose poems from Das Stundenbuch that mirrored the sentiments of each prayer. Adoration is a proclamation of faith, a statement of unrelenting praise and prayer. The narrator unapologetically declares that even if it begets arrogance, nothing will diminish his drive to reach out to God. Even through this bold statement, the poem maintains reverence and a sense of wonder toward its subject. Confession is a statement of the brokenness of the world, recounting how murder has ripped through God's call for us to love life, and how our attempts to atone for this brokenness fall short. Thanksgiving is a boisterous statement of praise to God. The speaker analogizes her praise to trumpet calls, her words to sweet wine, and her music to a northern spring day, each preparing the way for God. Supplication returns to the reverence of the first movement. The narrator contemplates her life that is ever circling around God. The accompanying monograph explains the ACTS prayers in the context of the Reformed Church of America, both historically and currently. It presents an analysis of the four Rilke poems selected to represent the ACTS prayers, including their narrative meaning, their relationship to Das Stundenbuch, their translations, and a close examination of their poetic features, such as prosody, meter, and rhyme. The discussion of the poems also required some background on Rilke's faith journey and artistic maturation. The monograph also addresses musical text setting in a broader sense by recounting some historical philosophies of textual and musical relationships and explaining where the composer's ideologies fall within the larger framework. Finally, it presents a musical analysis of Symphonic Prayers in relation to the text setting of the four poems, including an explanation of its harmonic structure, which is derived from Olivier Messiaen's modes of limited transposition. The compositional goal of Symphonic Prayers was to create a work that would honor the ACTS prayers through the elegant words of a mystic poet. The music reinforces the messages behind Rilke's honest conversations with God, and in doing so offers a new lens through which to experience the arc of the ACTS prayers.
Temple University--Theses
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Pin, Sonia. "Étude des instants initiaux des réactions solide-solide." Grenoble INPG, 2010. http://www.theses.fr/2010INPG0026.
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Le présent travail intitulé « Etude des instants initiaux des réactions solide – solide » a été réalisé dans le cadre d'une thèse en co-tutelle franco-italienne sous le double sceau de Alma Ticinensis Universitas de Pavie et de l'Université Joseph Fourier de Grenoble. Il s'est déroulé pour l'essentiel au ‘Département de Chimie-physique Mario Rolla' de l'université de Pavie, sous la direction du Prof. Paolo GHIGNA. La partie française c'est déroulé sous la direction du Prof. Michel DUCLOT au Laboratoire d'Electrochimie et de Physico-Chimie des Materiaux et des Interfaces - LEPMI (UMR 5631, CNRS, Grenoble-INP, UJF). De plus, les travaux expérimentaux du suivi de la cinétique des réactions oxyde - oxyde ont été réalisés au ‘European Synchrotron Radiation Facility', (E. S. R. F, Grenoble, France), sous la direction du Dr. Francesco D'ACAPITO. Le mémoire est subdivisée en 7 chapîtres. L' introduction fait un point général sur les connaissances des réactions entre solides tant du point de vue thermodynamique que du point de vue transport de la matière. Le première chapitre fait le point des connaissances de la cinétique des réactions solide – solide et montre l'intérêt de la connaissance des phénomènes aux instants initiaux. Ce point constitue la partie originale qui sera développé dans ce travail. Dans le chapître 2 sont présentés la stratégie d'analyse (rayonnement synchrotron, ajustement des données) ainsi que le système expérimental (film mince du matériaux étudie sur substrat monocristallin). Le chapître 3 est consacrée a l'étude de la croissance épitaxiale des films minces d'oxyde de type MO, (M = Mn, Zn, Ni), à l'aide d'un système de déposition par magnetron sputtering Radio Frequence (RF-magnetron sputter). L' échantillon obtenu est ensuite recuit pour l'homogéneite�� de l'orientation épitaxiale. Les techniques X-ray Absorption Spectroscopy (XAS) et Fluorescence X-Ray Absorption Spectroscopy (fluo-XAS) sont présentées dans le chapître 4 ainsi que le faisceau synchrotron GILDA BM08 de l'ESRF, où ont été réalisées les expériences ce qui a permis l'identification d'au moins un nouveau composé cristallin. Sur le faisceau ID24 (ESRF) ont été réalisées les mesures de X-ray Absorption Near Edge Spectroscopy (micro-XANES) (chapître 5). Le faisceau ID03 (ESRF) a servi pour les mesures de diffraction superficielle (chapître 6). Un pas en avant dans l'analyse de la surface est présenté dans le chapître 7 où les mesures par Atomic Force Microscopy (AFM) et par Electron Diffraction (ED) montrent des changements impressionnants de la structure et de la morphologie superficielle des films d'oxyde (chapître 8). Ce travail a permis un approche performante pour la compréhnsion des mécanismes des réactions interfaciales au niveau de l'atome. Ces résultats peuvent être une contribution important pour l'élaboration de nouveaux oxydes à l'état nanometric. Cette perspective laisse penser à l'ouverture d'une nouvelle voie pour l'étude de mécanismes de réaction à l'état solide de façon analogue au réactions de femtochimie en phase gazeuseThe work presented in this PhD thesis and entitled “Probing the initial stages of solid state reactions” has been mainly carried out under a Convention de Co-tutelle de thèse between France and Italy and the two universities, Alma Ticinensis Universitas – Università degli Studi di Pavia and Université Joseph Fourier de Grenoble. The work has been mainly carried out at the Department of Phisical – Chemistry “M. Rolla” of the University of Pavia under the supervision of prof. Paolo GHIGNA and the Laboratoire de Electrochimie et de Physico-Chimie des Materiaux et des Interfaces – LEPMI (UMR 5631, CNRS, Grenoble-INP UJF) under the direction of Prof. Michel DUCLOT. The work of study of the kinetic of the reaction between oxides was performed at the European Synchrotron Radiation Facility (E. S. R. F. , Grenoble, France), under the supervision of Dr. Francesco D'ACAPITO. The thesis is organized in seven chapters. The introduction presents the general concept of solid state reactions, under the point of view of the thermodynamic and of the matter transport. The first chapter shows what we know about reactions in the solid state and the high need for the understanding of the early stages nowadays. It's this crucial point the one that shows the peculiarity of this work. In chapter 2 the analysis strategy and the model that have been choose (thin film onto a monocrystal) are presented along with the main options exploited during the PhD. Chapter 3 is dedicated at the epitaxial growth of the thin film of oxide MO, (M = Mn, Ni, Zn), deposited by means of RF-magnetron sputter and subsequently the anneal and the reactions are carried out to have a good film orientation. The X-ray Absorption Spectroscopy (XAS) technique and the Fluorescence X-ray Absorption Spectroscopy (Fluo-XAS) with the GILDA BM08 beamline (ESRF) are presented in chapter 4, whit the identification of at least a new crystalline compound. The ID24 beamline (ESRF) has been used for the micro X-ray Absorption Near Edge Spectroscopy (micro-XANES) experiment (chapter 5). The ID03 beamline (ESRF) has been used for the surface diffraction measurements (chapter 6). A step forward in the surface analysis is presented in chapter 7 where the Atomic Force Microscopy (AFM) and Electron Diffraction (ED) techniques reveal an impressive change in the surface morphology of the reacted films (chapter 8). This work has involved a completely new approach for the comprehension of the mechanisms in the interfacial reactions at atomistic level. These results may be an important contribution for the design of new oxides at nanometric scale. This perspective open a new way for the study of the mechanisms in solid state reactions similarly to femtochemistry in gas phase
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Serralta, Frédéric. "Antonio de solis et son theatre." Toulouse 2, 1987. http://www.theses.fr/1987TOU20019.
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Les travaux ici consacres a antonio de solis et son theatre contribuent a eclairer les zones d'ombre de sa vie et de sa trajectoire dramatique. Ils proposent la solution d'imbroglios bibliographiques et de problemes d'attribution : les deux versions de la gitanilla, la restauracion de espana, piece fictive, el hidalgo ("entremes"). . . La biographie de solis precise certaines circonstances de sa vie privee (son domicile, sa compagne, son fils), evoque son cadre familier (contenu de son testament, inventaire de sa bibliotheque) et, moyennant la datation de ses pieces, fait apparaitre l'existence de deux seules periodes fecondes. De 1651 a 1661 l'auteur, dramaturge officiel, fournit au palais de nombreuses pieces courtes, une comedie burlesque en collaboration et des "comedias" a grand spectacle dont le succes, et notamment celui de la derniere, triun, fos de amor y fortuna (1658), est unique dans le theatre espagnol du xviie siecle et encore atteste vingt ans apres. Mais pendant cette deuxieme periode, solis ne fait guere que refondre ses textes ou reutiliser les structures elaborees lors de la premiere. C'est de 1627 a 1636, en effet, qu'il assimile les principes de la "comedia" d'intrigue et forge -de l'imitation a l'affirmation de soi- sa personnalite creatrice. Utilisant un schema dramatique immuable, maitrisant bientot a la perfec- tion la "fatalite comique" et la "mecanique des erreurs", il se distingue par son souci de clarte et de moderation, sa distanciation ironique a l'egard des poncifs du genre, sa liberte de ton, sa satire enjouee, et une sorte d'humanisme souriant faisant de son chef-d'oeuvre, el amor al uso, une des meilleures comedies d'intrigue du siecleThis research devoted to antonio de solis and his theatre contributes to shed light on the dark areas of his life and of his theatrical trajectory. It proposes to unravel bibliographical imbroglios and problems of authorship such as those of the two versions of la gitanilla, la restauracion de espana, a fictitious play, and el hidalgo ("entremes"). . . The biography of solis clarifies several aspects of his private life (his dwelling-place, his life companion, his son), evokes his way of life (from a study of his will and the contents of his library) and, after establishing the dates of his plays, brings to light only two productive periods. From 1651 to 1661 solis, official playwright, wrote for the court numerous short plays, a burlesque comedy in collaboration, and spectacular "comedias" whose success, notably that of the last one triunfos de amor y fortuna (1658), is unique in xviith century spanish theatre, and stretches over a period of twenty years. Yet during this second period solis did little more than reworking his texts or using again the structures worked out during his first creative period. Indeed it was from 1627 to 1636 that he mastered the principles of the comedy of intrigue and minted his creative personality, moving from imitation to self-assertion. Making use of an immutable dramatic pattern and soon mastering "comic fate" and "the mechanics of errors", he achieved eminence thanks to his taste for clarity and moderation, his ironic distance from the cliches of the genre, the audacity of his tone, his witty satire, and as it were the smile of humanism that safely places his masterpiece, el amor al uso, in the front ranks of his century's comedies of intrigue
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Nyberg, Jens. "Husqvarna Solida." Thesis, Konstfack, Industridesign, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-2833.
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Hösten 2004 gick jag en kurs i klädsömnad på Folkuniversitetet. Jag hade haft lite syslöjd i skolan tidigare men kände att sy, det måste man ju kunna. Sagt och gjort, kursen gick bra, resultatet blev en långärmad tröja och ett väckt intresse för symaskiner. Under kursen slogs jag av hur tråkig min symaskin såg ut. Varför gjorde den det? De används ju av kreativa människor och står ofta framme. Under min tid på FIDU i Hällefors började jag skissa lite på en symaskin, då var jag fascinerad av de gamla svarta gjutgärnsmaskinerna med guldornament. Det blev in så mycket mer med det förens nu. Jag hade till en början ingen bestämd idé om hur jag skulle vinkla mitt projekt. Jag såg symaskinen som en produkt som hade många intressanta “problem”. – Varför är alla moderna symaskiner vita? – Varför har i många fall formgivningen släktskap med vitvaror? – Måste de vara så tunga? Men projektet var ända inriktat mot den visuella identiteten på symaskinen, det var ändå det som hade fått mig intresserad från början. Jag valde därför att fokusera min marknadsöversikt på det visuella uttrycket hos symaskiner.Examensarbete Industridesign kandidatexamensarbete
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Venditti, Francesco. "Suono solido." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17588/.
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Analisi e ricerche sulle possibilità di utilizzo del marmo per la progettazione di diffusori acustici e prodotti audio per la casa.
Sviluppo di un prototipo di diffusore acustico in marmo ideato per ambienti interni.
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Pinto, Maria do Rosario. "Perfect solids." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358006.
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Wang, Hao. "Contribution à l'étude thermique des contacts périodiques solide-solide." Vandoeuvre-les-Nancy, INPL, 2000. http://www.theses.fr/2000INPL040N.
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Cette étude est consacrée aux modélisations analytique et numérique du phénomène de contact thermique périodique entre deux surfaces solide-solide. En particulier, nous utilisons la notion de quadripôle thermique pour résoudre le transfert conductif dans un contact plan-plan monodimensionnel périodique ainsi que dans le cas d'un macro-contact périodique avec constriction. La modélisation est effectuée par un développement en séries de Fourier des variables périodiques en temps. Cette méthode quadripolaire nous permet d'une part, de prédire le comportement thermique du contact de l'interface périodique dans des conditions quelconques et d'autre part, d'analyser l'influence de divers paramètres sur la résistance apparente dans un domaine étendu de fréquence. Les résultats sont alors compares avec ceux des autres modèles, analytiques ou numériques. L’étude bidimensionnelle montre que le modèle monodimensionnel reste valable pour les périodes longues, mais qu'il est nécessaire d'introduire la notion de temps d'établissement de la constriction thermique pour expliquer le comportement du contact pour les périodes courtes et moyennes. Nous étudions analytiquement l'établissement de la constriction dans un cas simple et son influence sur le transfert de chaleur dans le macro-contact. Des représentations simplifiées de la résistance apparente sont données pour les trois cas limites (courtes, moyennes et longues périodes). Une expérimentation monodimensionnelle est mise en place. Les résultats sont compares aux solutions des modèles précédents.
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Yang, Wei. "Solids phase chromatography." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505060.
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The present study focuses on the development of a novel technique, namely Solids Phase Chromatography (SPC), for particle classification and size analysis. SPC is a fractionation based technique and utilises a separation channel to fractionate the particle samples into sub-fractions according to their sizes. Subsequently, the products may be analysed by various detectors and recovered for other investigations.
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Doin, Yves. "Contribution à l'étude des contacts thermiques solide solide en régimes variables." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375972307.
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Neagoe, Marian-Bogdan. "Modélisation expérimentale de phénomènes électrostatiques et tribologiques aux interfaces solide/solide." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2294/document.
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L'objectif de cette thèse a été d'explorer la possibilité d'utiliser la charge électrostatique pour améliorer les conditions de contact glissant sec ou lubrifié (deux huiles avec viscosités différentes et de l’eau distillée) entre matériaux polymériques (PP, PE, PS, ABS et deux types de PVC). Trois nouvelles installations expérimentales ont été conçues et réalisées. La première installation est un tribomètre linéaire qui permet le réglage de quatre variables de contrôle du processus de charge (la force normale, la vitesse, la durée et l’amplitude du mouvement de glissement) et la mesure de trois caractéristiques du régime de frottement (la force tangentielle, la variation de la force normale et le déplacement relatif entre les éprouvettes). La deuxième installation est un dispositif pour mesurer la distribution de la charge électrique de surface et la corréler avec des cartographies de température. Une troisième installation est destinée à l'étude de l’influence de la charge électrique sur l’angle de contact de gouttelettes déposées en surface. Les expériences réalisées ont montré que le niveau de la charge généré par frottement sec dépend du temps de frottement, de l’usure, de la pression de contact et de la rugosité des surfaces. Une charge générée par effet triboélectrique ou par décharge couronne peut augmenter le frottement à sec. En revanche, la présence d’une charge électrique à la surface du polymère améliore le frottement lubrifié. Les mesures d’angles de contact ont mis en évidence que celui-ci dépend de la nature du liquide et du polymère étudiés, ainsi que de l’état de charge électrique des échantillonsThe approach undertaken in this thesis is to explore the possibility of using the electrostatic charge to improve the dry or lubricated (two oils with different viscosity and distilled water) sliding contacts between polymeric materials (PP, PE, PS, and ABS, two types of PVC). Three experimental benches were designed and built. The first installation is a linear tribometer designed to study the sliding contacts between solids with dry or lubricated friction. It allows the adjustment to four control variables of the tribocharging process: normal force, sliding speed, time and stroke, and the measurement of three characteristics of the friction regime: the tangential force, the variation of the normal force and the relative displacement between the specimens. The second installation is a device for measuring the distribution of the surface electrical charge, and for correlating it with the temperature mappings. A third installation is designed to study the influence of the electric charge on the contact angle of droplets deposited on the surface. The experiments showed that the level of the charge generated by dry friction depends on the friction time, the wear, the contact pressure and the roughness. A charge generated by friction or by corona discharge can increase dry friction. On the other hand, the presence of electric charge on the surface of polymers can improve a lubricated contact. The contact angle measurements pointed out the influence of the nature of both solid and liquid materials involved in the contact, as well as of the electric charge of the samples
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Loubeau, Vincent. "Sur un modèle de combustion solide-solide à énergie d'activation finie." Bordeaux 1, 1992. http://www.theses.fr/1992BOR10596.
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Si les modèles de combustion en phase gazeuse ont fait l'objet de nombreuses études, la combustion solide-solide reste largement un domaine nouveau, surtout dans le cas des énergies d'activation finies. On considère ici un système parabolique-hyperbolique avec un terme de réaction correspondant à une cinétique d'Arrhenius. On montre l'existence d'une solution onde stationnaire, et la convergence vers un modèle asymptotique. La question de la stabilité est formulée mathématiquement et conduit à un problème d'évolution abstrait formel. Les valeurs propres de l'opérateur linéarise sont étudiées numériquement
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Markel, Dean R. "Armando Ghitalla : orchestral trumpeter, soloist, and pedagogue (1925-2001)." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1378141.
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This study documents the performing and teaching career of Armando Ghitalla (1925-2001), and describes his pedagogical approach with an emphasis on understanding his approach to teaching embouchure. It includes as appendices a comprehensive discography of his solo, chamber, and orchestral recordings, a listing of his solo performances with the Boston Symphony Orchestra, a selected list of former students, and copies of his advanced flexibility and transposition studies.The personal interview served as the primary source of data for this study. The subject, Armando Ghitalla, participated in an in-depth interview with the author which was recorded and transcribed. Subsequent data was gathered from former students through the use of an open-ended questionnaire. Follow-up interviews were held with several of the respondents. Previously published articles, interviews, reviews, and an unpublished recording of a trumpet clinic were also consulted.Ghitalla was a member of the Boston Symphony Orchestra for twenty-eight years, serving as solo trumpet of the Boston Pops Orchestra from 1951-1965 and principal trumpet of the Boston Symphony Orchestra from 1965-1979. He was active as a virtuoso trumpet soloist and had a distinguished career as a trumpet professor following his retirement from the Boston Symphony. His success as an orchestral performer, solo performer, and noted pedagogue distinguish him from many of his contemporaries.School of Music
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Theodore, Michael. "Nam-shub : (for two percussion solists, ensemble, and tape) /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9906484.
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Thesis (Ph. D.--Music)--University of California, San Diego, 1998.Vita. For 2 percussion soloists, 4 auxiliary percussionists, 3 bass clarinets, 3 trombones (2 tenor, 1 bass), tuba, and digital audio tape.
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Papillon, Anthony. "Frittage de composites Cu-Cr pour l'élaboration de matériaux de contact d'ampoules à vide." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI099.
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Les composites Cu-Cr sont couramment utilisés comme matériaux de contact électrique pour ampoules à vide des disjoncteurs de moyenne tension. Pourtant très répandu, le frittage en phase solide de ces matériaux a été relativement peu étudié. L’optimisation du procédé passe par la compréhension des mécanismes de frittage. Cette étude est focalisée sur deux aspects importants du frittage : les processus d’oxydo-réduction liés aux oxydes de surfaces des poudres et la compétition entre mécanismes de densification et de gonflement au cours du frittage.L’oxydo-réduction a été étudiée par analyse thermogravimétrique couplée à différentes techniques de spectroscopie d’abord sur les matériaux purs puis sur les composites. Des analyses des interfaces par des coupes réalisées au FIB ont permis de préciser la localisation de l’oxyde dans les matériaux frittés. Un transfert d’oxygène a lieu entre les poudres de cuivre et de chrome. L’intensité de ce transfert dépend de la nature réductrice de l’atmosphère utilisée.La densification a été analysée par dilatométrie sur les matériaux purs et sur les composites. Ces analyses ont été appuyées par des observations microstructurales, notamment par tomographie des rayons X. L’effet des paramètres du procédé (atmosphère, vitesse de chauffage, poudres…) a été étudié. Les résultats montrent le lien entre la désoxydation des poudres de cuivre et le frittage. Un phénomène de gonflement du cuivre seul s’explique par le dégazage du cuivre à haute température lors de la fermeture des pores. Ce gonflement n’a pas lieu dans les composites Cu-Cr car le chrome retarde la fermeture des pores et piège les gaz émis par le cuivre en formant l’oxyde Cr2O3. L’atmosphère de frittage, la morphologie et la taille des poudres de chrome influent sur la densification. Le frittage sous vide permet de réduire la porosité. Une morphologie sphérique des particules de chrome limite l’effet inhibiteur de celui-ci sur la densification. Pour de faibles tailles de particules, le chrome participe à la densification, ce qui permet de mieux densifier le matériau. Ces résultats ouvrent des voies d’optimisation du procédé de frittage des matériaux.Les matériaux élaborés ont été testés dans leurs conditions d’utilisation, c'est-à-dire lors de coupures sur court-circuit en ampoule à vide. Ces essais ont montré l’intérêt de réduire la quantité d’oxyde de chrome et ont permis de déterminer l’effet des impuretés rencontrées usuellement sur les poudres de cuivre et de chromeCu-Cr composites are commonly used as contact materials for medium voltage circuit breakers vacuum bottles. Solid state sintering process of Cu-Cr composites is widespread but has been relatively little studied. Optimizing the process requires understanding the sintering mechanisms. This study was focused on two important aspects of sintering: the redox reactions associated to oxides on the powder surface and the competition between densification and swelling mechanisms during sintering.The redox reactions were studied by thermogravimetric analysis coupled to various spectroscopic techniques, first on isolated Cu and Cr, then on Cu-Cr composites. Interfaces analyses obtained by FIB clarified the location of the oxide inside the sintered materials. Oxygen transfer takes place between copper and chromium powders. This phenomenon strongly depends on the reducing character of the sintering atmosphere.Densification was analyzed by dilatometry on Cu, Cr and Cu-Cr composites. This analysis was supported by microstructural observations, including X-ray tomography .The effect of process parameters (atmosphere, heating rate, powders ...) was studied. The results show the relationship between sintering and copper oxide reduction. The swelling phenomenon of copper compacts is explained by high temperature degassing of copper during pore closure. This swelling does not occur in Cu-Cr composites as chromium delays pore closing and entraps the gases released by copper. Sintering atmosphere, chromium morphology and chromium particle size affect densification. Vacuum sintering reduces porosity. Chromium particles with spherical shape limit its inhibiting effect on densification. For small particle sizes, chromium participates to densification, leading to better densification of the material. These results open the route for optimizing the sintering of Cu-Cr composites.Cu-Cr composites were tested for short circuit performance in vacuum interrupters. The result of these tests showed the importance of reducing the chromium oxide amount. The effect of impurities commonly encountered on the powders copper and chromium powders was also determined
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Castillo, Adriana. "Structure et mobilité ionique dans les matériaux d’électrolytes solides pour batteries tout-solide : cas du grenat Li7-3xAlxLa3Zr2O12 et des Nasicon Li1.15-2xMgxZr1.85Y0.15(PO4)3." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX107/document.
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L’un des enjeux pour le développement des batteries tout-solide est d’augmenter la conductivité ionique des électrolytes solides. Le sujet de la thèse porte sur l’étude de deux types de matériaux d’électrolytes solides inorganiques cristallins: les Grenat Li7- 3xAlxLa3Zr2O12 (LLAZO) et les Nasicon Li1.15- 2xMgxZr1.85Y0.15(PO4)3 (LMZYPO). L’objectif de cette étude est de comprendre dans quelle mesure les propriétés conductrices des matériaux étudiés sont impactées par des modifications structurales générées soit par un procédé de traitement particulier, soit par une modification de la composition chimique, et ce grâce au croisement des données structurales acquises par diffraction des rayons X (DRX) et Résonance Magnétique Nucléaire (RMN) MAS avec des données de dynamique des ions déduites de mesures de RMN en température et de spectroscopie d’impédance électrochimique (SIE).Les poudres ont été synthétisées après optimisation des traitements thermiques par méthode solide-solide ou solgel. La densification des pastilles utilisées pour les mesures de conductivité ionique par SIE a été réalisée par la technique de frittage Spark Plasma Sintering (SPS).Dans le cas des grenats LLAZO, l’originalité de notre travail est d’avoir montré qu’un traitement de frittage par SPS, au-delà de la densification attendue des pastilles, engendre également des modifications structurales qui ont des conséquences directes sur la mobilité des ions lithium dans le matériau et par conséquent sur la conductivité ionique. Une augmentation franche de la dynamique microscopique des ions lithium après frittage par SPS a en effet été observée par des mesures en température de RMN de 7Li et le suivi des constantes de relaxation.La deuxième partie de l’étude constitue un travail exploratoire sur la substitution de Li+ par Mg2+ dans LMZYPO. Nous avons ainsi étudié les propriétés de conduction ionique de ces composés mixtes Li/Mg, en parallèle d’un examen minutieux des phases cristallines formées. Nous avons notamment montré que la présence de Mg2+ favorise la formation des phases β’ (P21/n) et β (Pbna) moins conductrices ce qui explique la diminution de la conductivité ionique avec le taux de substitution de Li+ par Mg2+ observée dans ces matériaux de type Nasicon.Nos travaux soulignent donc l’importance primordiale des effets de structure sur les propriétés de matériaux d’électrolytes solides de type céramiqueOne of the issues for the development of all-solid-state batteries is to increase the ionic conductivity of solid electrolytes. The thesis work focuses on two types of materials as crystalline inorganic solid electrolytes: a Garnet Li7-3xAlxLa3Zr2O12 (LLAZO) and a Nasicon Li1.15-2xMgxZr1.85Y0.15(PO4)3 (LMZYPO). The objective of this study is to understand to what extent the conduction properties of the studied materials are impacted by structural modifications generated either by a particular treatment process, or by a modification of the chemical composition. Structural data acquired by X-ray diffraction (XRD) and Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) were then crossed with ions dynamics data deduced from NMR measurements at variable temperature and electrochemical impedance spectroscopy (EIS).The powders were synthesized after optimizing thermal treatments using solid-solid or sol-gel methods. Spark Plasma Sintering (SPS) technique was used for the densification of the pellets used for ionic conductivity measurements by EIS.In the case of garnets LLAZO, the originality of our work is to have shown that a SPS sintering treatment, beyond the expected pellets densification, also generates structural modifications having direct consequences on the lithium ions mobility in the material and therefore on the ionic conductivity. A clear increase of the lithium ions microscopic dynamics after SPS sintering was indeed observed by variable temperature 7Li NMR measurements and the monitoring of the relaxation times.The second part of the study provides an exploratory work on the substitution of Li+ by Mg2+ in LMZYPO. We studied the ionic conduction properties of these mixed Li/Mg compounds, in parallel with a fine examination of the crystalline phases formed. We have showed in particular that the presence of Mg2+ favors the formation of the less conductive β’ (P21/n) and β (Pbna) phases, which explains the decrease of the ionic conductivity with the substitution level of Li+ by Mg2+ observed in these Nasicon type materials.Our work therefore highlights the crucial importance of structural effects on the conduction properties of ceramic solid electrolyte materials
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GENDRE, DIDIER. "Transferts thermiques dans certains materiaux presentant un changement de phase solide/solide." Paris, ENMP, 1993. http://www.theses.fr/1993ENMP0466.
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Des mesures de proprietes thermophysiques sont effectuees sur la pentaglycerine, cristal plastique presentant une transition a l'etat solide au voisinage de 81c. Une cinetique de transition est mise en evidence pour ce compose a l'aide de calorimetries differentielles a balayage. On effectue une modelisation par elements finis des transferts thermiques au sein de materiaux presentant un changement de phase a l'etat solide, en l'absence ou presence de cinetique de transition. Des resultats de simulation valident le principe d'emploi de ces materiaux pour le controle thermique de cartes electroniques embarquees
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Wang, Hao. "Theoretical strength of solids." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42747.
Full textAbstract:
Theoretical strength of solids is defined as the ultimate strength beyond which plastic deformation, fracture, or decohesion would occur. Understanding the microscopic origin from quantum mechanics and thermoelastic formulation is of great importance to mechanical properties and engineering design of various solids. While quite a few theory models have been made in the past century by several generations of scientists, including Frankel and Born, a general and convincing framework has not been fully established. We study this issue from three respects: (1) Unify various elastic stability criteria for solids that determine an upper bound of theoretical strength; (2) with ab initio method, we test the elastic stability conditions of crystal Au. The phenomenon of bifurcation is observed: under hydrostatic expansion, the rhombohedral modulus reaches zero first of all; while under uniaxial tensile stress, the tetragonal shear modulus first reaches zero; (3) propose a nonlinear theoretical formulation of stability criterion. As an analytic method, this scheme is quite simple, in the mean time, it saves computation resource.
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Kwetkus, Bernhard Andreas. "Contact electrification of solids /." [S.l.] : [s.n.], 1992. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9788.
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Pronk, Sander. "Disorder in entropic solids." [S.l : Amsterdam : s.n] ; Universiteit van Amsterdam [Host], 2003. http://dare.uva.nl/document/86583.
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Pattenden, Paul Adam. "Muon studies of solids." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361930.
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Nichol, A. C. "Infrared spectroscopy of solids." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308601.
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Cook, M. I. "Magnetic resonance in solids." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253004.
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O'Connell, Andrew John. "Magnetic resonance in solids." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305439.
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Chadwick, Alan V. "Diffusion in nanocrystalline solids." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-195769.
Full textAbstract:
Enhanced atomic migration was an early observation from experimental studies into nanocrystalline solids. This contribution presents an overview of the available diffusion data for simple metals and ionic materials in nanocrystalline form. It will be shown that
enhanced diffusion can be interpreted in terms of atomic transport along the interfaces, which are comparable to grain boundaries in coarse-grained analogues. However, the method of sample preparation is seen to play a major role in the experiments and there are still many gaps in understanding the detailed mechanisms of diffusion in these systems.
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Madden, Timo Michael. "Regular and perfect solids." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240612.
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Foulkes, William Matthew Colwyn. "Interatomic forces in solids." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328669.
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Rayner, Anton. "Laser cooling of solids /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16448.pdf.
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Savini, Valeria. "Solidi platonici e archimedei." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2822/.
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Hou, Hang-sheng. "Cavitation instability in solids." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/13697.
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Olusanmi, Oludolapo Janet. "Milling of organic solids." Thesis, University of Leeds, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509852.
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Chadwick, Alan V. "Diffusion in nanocrystalline solids." Diffusion fundamentals 2 (2005) 44, S. 1-22, 2005. https://ul.qucosa.de/id/qucosa%3A14377.
Full textAbstract:
Enhanced atomic migration was an early observation from experimental studies into nanocrystalline solids. This contribution presents an overview of the available diffusion data for simple metals and ionic materials in nanocrystalline form. It will be shown that
enhanced diffusion can be interpreted in terms of atomic transport along the interfaces, which are comparable to grain boundaries in coarse-grained analogues. However, the method of sample preparation is seen to play a major role in the experiments and there are still many gaps in understanding the detailed mechanisms of diffusion in these systems.
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Salzillo, Tommaso. "Studio spettroscopico della reazione fotochimica solido-solido del 9,10-dinitro-antracene ad antrachinone." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2559/.
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Questa tesi riguarda lo studio della reazione fotoindotta del 9-10 dinitroantracene (DNO2A) ad antrachinone (AQ) con l’ausilio di una tecnica spettroscopica senza precedenti nel campo. Lo studio tramite spettroscopia Raman dei fononi reticolari (variazioni fisiche) e dei modi intramolecolari (variazioni chimiche) di reagente e prodotto, simultaneamente al manifestarsi della reazione, è infatti un metodo potente, diretto, in situ e non distruttivo per studiare una reazione solido-solido che coinvolge spettacolari movimenti micro-meccanici nel cristallo singolo del reagente durante l’irraggiamento. L’ulteriore vantaggio della confocalità amplia ulteriormente il campo di applicazione di questa tecnica, permettendo un’analisi su scala spaziale inferiore al micrometro, con la possibilità di mappature a livello molecolare da confrontare con l’immagine microscopica del campione[9].
Abbiamo inoltre visto che ampie ricostruzioni strutturali avvengono nel corso della reazione. Le conseguenze, a livello microscopico, si riflettono sulla modificazione strutturale della cella elementare; quelle a livello macroscopico mostrano una sorprendente relazione fotone incidente/energia meccanica prodotta. Infine lo studio di questa reazione in celle ad alta pressione ha ampliato il corpo di conoscenze della reazione oggetto della tesi.
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Rakotosaona, Rijalalaina Dirand Michel. "Etude et modélisation des équilibres liquide/solide et solide/solide dans des mélanges binaires de n-alcanes linéaires et des mélanges multiconstituants." Vandoeuvre-les-Nancy : INPL, 2005. http://www.scd.inpl-nancy.fr/theses/2005_RAKOTOSAONA_R.pdf.
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Rakotosaona, Rijalalaina. "Etude et modélisation des équilibres liquide/solide et solide/solide dans des mélanges binaires de n-alcanes linéaires et des mélanges multiconstituants." Vandoeuvre-les-Nancy, INPL, 2005. http://docnum.univ-lorraine.fr/public/INPL/2005_RAKOTOSAONA_R.pdf.
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Pour bien mener la modélisation des équilibres entre phases, des corrélations entre les propriétés thermodynamiques et le nombre d'atomes de carbone des n-alcanes purs ont été établies à partir des données de la littérature. La phase liquide et alpha RII se comportent comme un mélange idéal et la ligne d'équilibre entre le solide ordonnée et désordonnée est restituée par le modèle de Wilson en tenant compte le désordre de la phase désordonnée, pour les mélanges binaires des n-alcanes consécutifs. Le modèle de solution idéale pour la phase liquide et alpha RII des cires paraffiniques surestime sa température de solidification. Par contre, il restitue le profil de la distribution des n-alcanes de la phase liquide en équilibre avec l'alpha RII et le domaine de solidification de la cire. Le désordre de la phase solide, ainsi que l'ajout d'un aromatique augmente la solubilité de la cire dans un solvant. La cire est plus soluble dans le composé aromatique le plus légerCorrelations between thermodynamic properties and the carbon atom number of pure alkanes are established from literature data in order to carry out the phase equilibrium's modelling. The liquid and the alpha RII behave as an ideal mixture and the Wilson's model reproduce the equilibrium line between the ordered solid and the disordered one, considering the disorder of the disordered phase for consecutive n-alkane's binary mixture. For paraffinic waxes, the model of ideal solution for the liquid and alpha RII phases overestimate the wax's cloud point. However, the distribution of the liquid phase's alkanes and the wax's solidification domain can be estimated from this model. The solid phase's disorder, as well as the aromatic addition to the mixture make the wax more soluble in a solvent
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Sarraf, Riad. "Adsorption compétitive du tétrahydrothiophène et du benzène aux interfaces liquide-solide et gaz-solide." Montpellier 2, 1994. http://www.theses.fr/1994MON20230.
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L'etude de l'impact du stockage souterrain du gaz naturel sur la qualite de l'aquifere et l'evolution de la concentration de polluants polaires, dans le gaz et dans l'eau a ete entreprise en selectionnant les molecules liquides (tetrahydrothiophene, benzene) et les mineraux representatifs de la roche reservoir (quartz, kaolin, sable de gue, illite,). Apres une premiere phase de caracterisation physico-chimique des solides et des adsorbats retenus, nous nous sommes interesses a l'etude des phenomenes interfaciaux. L'etude a l'interface solide solution aqueuse est exploree en realisant les isothermes d'adsorption et de desorption de differents adsorbats sur les differents adsorbants. Les resultats des isothermes d'adsorption montrent : _ qu'il existe une affinite du tetrahydrothiophene (tht) selon le classement suivant : charbon actif g212 > quartz > sable de gue > kaolin > alumine > calcite > illite _ l'adsorption du tht est plutot reversible, augmente avec la temperature et la salinite et elle est sensible a la nature et au nombre de groupements superficiels. _ l'adsorption du benzene est du type physique, reversible et augmente avec la temperature. _ la presence du benzene en solution aqueuse contenant du tht (et inversement) modifie d'une maniere consequente l'adsorption de tht sur le quartz a 25\c. Dans une seconde phase, nous avons concu et realise un appareil original d'adsorption multigaz, pour la determination des isothermes d'adsorption et de desorption a l'interface gaz - solide. Cet appareil nous a permis de tracer : _ les isothermes d'adsorption individuelle de l'eau, le benzene et du tht _ les isothermes d'adsorption composite des systemes (eau / tht et eau / benzene).
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Perros, Elodie. "Caractérisation locale du transfert de chaleur aux interfaces solide-solide dans les milieux isolants." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLET030/document.
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L’objet de cette thèse, effectuée en collaboration avec Saint-Gobain dans le cadre d’un financement CIFRE, est l’étude du transfert thermique à l’interface entre les objets microscopiques constituant les matériaux isolants à base de verre. Nous avons développé deux instruments nouveaux, permettant d’investiguer le transfert thermique entre deux objets microscopiques en verre. Le premier instrument est une sonde locale à balayage utilisant une sonde thermosensible (sonde SThM) permettant d’effectuer une mesure très locale de la température d’un échantillon ou éventuellement de le chauffer lorsqu’elle est en contact avec celui-ci. Nous avons utilisé cette sonde de manière détournée, en collant une bille de verre de 20µm de diamètre à son extrémité, en la plaçant au-dessus d’une surface plane de verre, dont la température est différente de celle de la bille, et en étudiant la température au sommet de cette bille à mesure que la distance bille-plan varie. Les « courbes d’approche » ainsi obtenues et un modèle en résistances équivalentes que nous proposons permettent de donner une première estimation de la résistance thermique de contact dans une géométrie bille-plan. Le deuxième instrument est un dispositif nouveau de thermographie infrarouge. Il s’agit d’une méthode sans contact qui permet à la fois de produire des images dans le moyen infrarouge avec une résolution spatiale meilleure que ce que la limite de diffraction ne permet, mais aussi d’effectuer une mesure dynamique du refroidissement d’un système constitué d’une ou de plusieurs fibres de verre micrométriques(s) suite à un échauffement bref et local par absorption d’un laser ultraviolet impulsionnel. La comparaison de ces courbes de refroidissement enregistrées sur une fibre seule ou sur un croisement de fibres permet d’obtenir une information sur la résistance thermique de contact au croisement des deux fibres. Un modèle semi-analytique que nous avons développé permet de reproduire ces tendances sur une fibre seule. Nous avons également développé un modèle perturbatif exploitant le modèle à une fibre qui permet de reproduire l’évolution spatio-temporelle de la chaleur au sein d’un système de deux fibres en contactThe aim of this thesis, in collaboration with Saint-Gobain within the framework of a CIFRE funding, is the study of heat transfer at the interface between microscopic objects from which isolation materials are made. During this thesis we developed two new instruments, allowing to investigate the heat transfer between two microscopic glass objects. The first instrument is a scanning probe microscope using a thermosensitive probe (SThM probe) allowing to make a very local temperature measurement or to produce a local heating of a sample in contact with the probe. We used this probe in an unusual way, by gluing a 20µm diameter glass bead on its thermosensitive end, by placing it above a flat glass surface whose temperature is different from that of the bead, and by studying the temperature at the top of this bead as the distance bead-to-plan varies. The "approach curves" obtained in this way and a model using a thermoelectric analogy that we propose allow to give a first estimation of the thermal resistance of contact in a sphere-plane geometry. The second instrument is a new infrared thermography device. It is a contactless method which allows to produce images in the mid-infrared with a spatial resolution better than the diffraction limit, but also to carry out a dynamic measurement of the cooling of a system made of one or more micrometric glass fibers, after a short and local heating by absorption of a pulsed ultraviolet laser. Comparison of these curves recorded on a single fiber or on two crossing fibers makes it possible to obtain an information on the thermal resistance of contact at the crossing of the two fibers. A semi-analytical model that we developed allows us to reproduce these trends on a single fiber, while a perturbative approach exploiting the one-fiber model allows us to reproduce the spatiotemporal evolution of heat within a system of two fibers in contact
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Aguiar, Adriano Augusto Martins da Rocha Oliveira. "O contrabaixo como instrumento solista na segunda metade do século XIX em Lisboa: perspectiva histórica e analítica, edição crítica." Doctoral thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/18329.
Full textAbstract:
A presente dissertação de estrutura tripartida tem como objetivo primordial dar a conhecer três
obras para contrabaixo solista escritas em Lisboa na segunda metade do século XIX, através da análise
musical destas composições e de uma Edição Crítica, acompanhada pelo respetivo enquadramento
histórico. Estas três obras foram escritas pelos contrabaixistas/compositores João Rodrigues
Cordeiro (1826, Rio de Janeiro – 1881, Lisboa), Francisco de Freitas Gazul (1842 – 1925, Lisboa)
e Júlio António Avelino Soares (1846 – 1888), aos quais são dedicados alguns capítulos de teor
biográfico. Coloca-se o foco de investigação no ensino no Conservatório de Música de Lisboa, assim
como na passagem por Lisboa, no Teatro de São Carlos (palco principal da Lisboa novecentista),
dos virtuosos italianos Luigi Anglois, Giovanni Bottesini e Italo Caimmi; Abstract:
The double bass as a soloist instrument in the second half of the nineteenth century in
Lisbon: Historical and analytical perspective, critical edition.
This dissertation of tripartite structure has the primary objective of bringing to light three works for
double bass soloist written in Lisbon in the second half of the nineteenth century through the musical
analysis of these compositions and a Critical Edition accompanied by an examination of their
historical background. These three works were written by the double bassists and composers João
Rodrigues Cordeiro (1826, Rio de Janeiro – 1881, Lisbon), Francisco de Freitas Gazul (1842, Lisbon
– 1925, Lisbon) and Júlio António Avelino Soares (1846, Lisbon – 1888, Lisbon), to whom are dedicated
some chapters with biographical information. The focus of this investigation is on the teaching
practices at the Conservatório de Música de Lisboa as well as on the passage through Lisbon, at the
Teatro de São Carlos (the principal stage in nineteenth century Lisbon) of the italian virtuosi Luigi
Anglois, Giovanni Bottesini and Italo Caimmi. NOTA: Contém Anexos indisponiveis online. Consulta presencial
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Delfini, Oriana. "NETTO - dispenser di sapone solido." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Find full textAbstract:
Quando ho iniziato a pensare al tema della tesi, ho capito ben presto che l’unico percorso per me possibile e necessario avrebbe dovuto riguardare il tema ambientale; avevo solo bisogno di uno stimolo.
Un giorno, pulendo il mio bagno, la solita operazione di buttare i tanti flaconi vuoti di shampoo, balsamo, e sapone accumulati maldestramente da me e i miei coinquilini, ha avuto una luce diversa.
Perché tutta quella plastica monouso quando esiste la saponetta?
Il mio coinquilino la pensava diversamente: “la saponetta? Ma è piena di batteri.. la toccano tutti!”.
La mia risposta fu che sì, la toccano tutti, ma tra noi in casa sarebbe stato passabile, non siamo mica in un aeroporto.
E’ in questo momento che nasce l’idea: sapone solido negli spazi pubblici.
Ho parlato in primis con gli utilizzatori, attraverso sondaggi e interviste dirette. Ho poi verificato l'effettivo vantaggio ecologico del sapone solido rispetto al liquido, scoprendo che va ben oltre il packaging. Ho cercato i pareri degli esperti, per chiarificare la somma di tutte le mie intuizioni.
Il risultato è Netto, una soluzione progettuale che si propone come l'anello di congiunzione tra i bisogni dell’utenza e i bisogni dell’ecosistema.
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Klanner, Catharina. "Evaluation of descriptors for solids." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97123941X.
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Martínez, García Julio César. "Dynamics in orientationally disordered solids." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/35856.
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The key features of dynamics of ultraslowing glass forming systems are their universality in diversity. Its
origin is recognized as one of the greatest challenges of condensed matter physics and materials
engineering in the XXI century. Similar phenomena are observed on approaching the glass transition in
low molecular weight supercooled liquids, polymers, colloidal fluids as well as in solids, for instance in
orientationally disordered crystals, spin glass-like magnetic, vortex glasses. Pre-vitreous dynamics is also
proposed as a general reference for the category of complex liquids/soft matter systems.
The upsurge of the primary relaxation time or related dynamical properties is the basic physical
phenomena of the still mysterious previtreous behavior. This means a much more pronounced slowing
down than the Arrhenius pattern observed far above the glass transition temperature. Portraying this
behavior constitutes one of key checkpoints for theoretical models developed to unwind the glass
transition puzzle. However, none of the aforementioned features can answer the understanding that
governs the increase of relaxation time in liquids upon cooling.
In this thesis we focus on the above questions studying the dynamics of some materials for which their
molecules can retain a translational order being orientationally disordered between them upon cooling,
which are referred to plastic phases or orientationally disordered (OD) crystalline phases. The work
presented in this thesis potentially extends the knowledge of dynamics of OD phases and orientationally
glasses (OG), a research topic which has gained interest during the last decades.
Through this study, especial attention has been devoted to the phenomenological equations accounting
to the temperature dependence of the mean relaxation time describing the orientational dynamics .The
study was carried out by the use of BDS as well as two complementary experimental techniques. We
show distortion-sensitive and derivative-based empirical analysis of the validity of leading equations for
portraying the previtreous evolution of primary relaxation time. A new method for studying the dynamics of
glass forming systems is introduced and the minimization procedure is validated and discussed.
We present the results divided in two topics, the dynamics of the pure compounds and mixed crystals and
the derivative analysis through different existing models.
In the first topic we focus on the dynamics of the pure compounds and mixed crystals formed between
cycloheptanol and cyclooctanol as well as the a-relaxation dynamics of 1-cyano-adamantane and its
mixtures with 1-chloro-adamantane. The second topic is divided in two groups of models, linearized and
non-linearized models. In the linearized models we show the application of the derivative based,
distortion-sensitive analysis to liquid crystals (LC) and OD phases. We also discuss the results concerning
to the cases of the olygomeric liquid epoxy resin (EPON828), neopentylalcohol and neopentylglycol
mixture, isooctylcyanobiphenyl and propylene carbonate. The possible empirical correlations between one
of the linearized models with the universal pattern for the high frequency wing of the loss curve for primary
relaxation time for LCs and OD phases is also shown.
In the final part we show that the form of the equation recently introduced by Mauro et al. does not allow a
similar straightforward linearization procedure. Unlike the previous models, the involved parameters are
not correlated with the slope and the intercept of a linear function. In order to solve this problem, we have
introduced the concept of the enthalpy space.
The evidences of the existence of crossovers as well as quantitative descriptions are discussed. We show
also a new procedure for detecting the crossover in a very easy way. A new kind of crossovers which
seems to be impossible to be detected by the classical Stickel transformation is presented.La principal característica de la dinámica de sistemas vítreos viscosos, es su universalidad en la diversidad. Su origen es uno de los mayores desafíos de la física de la materia condensada y de la ingeniería de materiales en el siglo XXI. La fenomenología típica de las fases vítreas se observan cerca de la transición vítrea en líquidos subenfriados de bajo peso molecular, polímeros, fluidos coloidales, así como en los sólidos con fases orientacionalmente desordenadas. La imposibilidad de explicar las causas del gran aumento del tiempo de relajación al enfriar un líquido, constituye uno de los problemas más importantes no resueltos en materia condensada. Con el objetivo de dar respuesta a dicha interrogante, se han propuesto modelos termodinámicos y dinámicos que han resultado inconsistentes. En esta tesis nos centramos en dicha problemática, estudiando la dinámica orientacional de algunos materiales que al ser enfriados pueden conservar un orden traslacional mientras que se conserva el desorden orientacional de las moléculas que los forman. Dichas fases se conocen como fases plásticas u orientacionalmente desordenadas (OD). El trabajo presentado en esta tesis amplía el conocimiento de la dinámica de dichas fases, un tema de investigación cuyo interés ha aumentado durante las últimas décadas. Se ha dedicado una atención especial a las ecuaciones fenomenológicas que describen la dependencia del tiempo de relajación con la temperatura. El estudio se ha llevado a cabo mediante el uso de espectroscopía dieléctrica de banda ancha, así como mediante el uso de técnicas experimentales complementarias. Se ha introducido un nuevo método para el estudio de la dinámica de los sistemas que dan lugar a fases vítreas. El método ha sido validado y discutido. Los resultados de esta tesis se presentan divididos en dos temas, por un lado, la dinámica de compuestos puros y de los cristales mixtos y, por otro, el análisis mediante el método derivativo aplicado a los diferentes modelos físicos existentes. En el primer tema nos centramos en la dinámica de los compuestos puros y los cristales mixtos formados por cicloheptanol y ciclooctanol, así como la dinámica de la relajación alfa en 1-ciano-adamantano y sus mezclas con 1-cloro-adamantano. El segundo tema se divide en dos grupos de modelos, los modelos lineales y no lineales. En los modelos lineales se muestra la aplicación del procedimiento de derivativo en los cristales líquidos (CL) y las fases OD. También se discuten los resultados relativos a los casos de la resina líquida (EPON828), la mezcla neopentil-alcohol y neopentil-glicol, el carbonato de propileno, así como el CL isooctilcianobifenil. Se discute también la existencia de posibles correlaciones empíricas entre uno de los modelos lineales con el patrón universal para la parte de alta frecuencia de la curva de pérdidas dieléctricas de la relajación primaria para las fases CL y OD. En la parte final se muestra que la forma de la ecuación introducida recientemente por Mauro et al. no permite la linearización mediante el método derivativo. A diferencia de los modelos anteriores, los diferentes parámetros no están correlacionados con la pendiente y el origen de coordenadas de una función lineal. Para resolver este problema, hemos introducido el concepto del espacio entálpico. Se analiza también la existencia de cambios de comportamiento dinámicos y se aportan descripciones cuantitativas. Se muestra también un nuevo procedimiento para detectar los cambios dinámicos de una manera fácil, que permite incluso detectar aquéllos que son obviados mediante el método clásico de Stickel.