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1
Audet, Denis. „Stockage thermique par containérisation alvéolaire de M. C. S. Et M. C. P. : mise en oeuvre d’un évaporateur / stockeur“. Compiègne, 1985. http://www.theses.fr/1985COMPI212.
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2
Kundu, Chaturbhuj. „A Study of the programmatic difference between the C P I and the C P I (M) since 1964 on rural democracy and agrarian reforms and their actual practice in West Bengal“. Thesis, University of North Bengal, 1992. http://hdl.handle.net/123456789/196.
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3
LUQUET, NATHALIE. „L'evolution du c. A. M. S. P. De cannes de 1990 a 1992“. Nice, 1994. http://www.theses.fr/1994NICE6502.
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4
Jonnalagadda, Krishna Praveen. „Influence of Graphite type on copper diffusion in P/M copper steels“. Thesis, KTH, Materialens processteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98264.
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One main reason for the use of Fe-Cu-C system in PM industry is the presence of liquid phase (copper) at the start of sintering (1120oC). The diffusion of liquid copper into iron causes swelling in the structure. This in turn can cause high dimensional change and, if not controlled properly, may cause distortion. So it is of paramount importance to control the copper diffusion. Carbon, added as graphite, reduces the swelling of copper by changing the dihedral angle. The affect of graphite on copper diffusion depends on the graphite type, particle size of graphite and heating rate. The aim of this work was to find the influence of graphite type and particle size of graphite on copper diffusion. Water Atomized iron (ASC100.29) produced in Höganäs AB was taken as the base powder. Two types of graphite were used each with two different particle sizes. Two different graphite quantities (0.2% & 0.8%) for each type was taken. Natural fine graphite (UF4), Natural coarse graphite (PG44), Synthetic fine graphite (F10) and Synthetic coarse graphite (KS44) were the graphites used in this work. Powders were compacted at 600 Mpa and the sintering was done at 1120oC for 30 minutes in 90/10 N2/H2. Dilatometry and metallographic investigation of the samples sintered in the production furnace were used to understand the graphite influence. The investigation showed that at low graphite levels (0.2%), the affect of graphite type or graphite size was not significant on copper diffusion. At high graphite levels (0.8%), synthetic graphites were more effective in reducing the swelling of copper. Influence of particle size of synthetic graphites on Cu diffusion was not significant compared to the influence of particle size of natural graphite. There was also a considerable affect of heating rate on graphite dissolution and copper swelling.
5
XISTE, ESPITALIER-NOEL MARIE-PAULE. „Etude des consultations du centre medico-psycho-pedagogique (c. M. P. P. ) henri wallon de saint-denis de la reunion“. Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX20101.
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LEBOUTET, AGNES. „C. A. M. P. S. De l' ariege : approche evaluative de 6 ans de fonctionnement“. Toulouse 3, 1988. http://www.theses.fr/1988TOU31139.
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Denton, Alisandra [Verfasser], Andreas P. M. [Akademischer Betreuer] Weber und Laura [Akademischer Betreuer] Rose. „Establishment of C 4 Photosynthesis in Ontogeny and Evolution / Alisandra Denton. Gutachter: Andreas P. M. Weber ; Laura Rose“. Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1081767715/34.
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8
DANVEL, MARIE-CHRISTINE. „Les consultations de pedo-psychiatrie au c. M. P. Les moulins en 1991 : les aspects sociaux et juridiques“. Nice, 1992. http://www.theses.fr/1992NICE6009.
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Brambila, Edn?a Zandonadi. „Biblioteca P?blica e o resgate informacional da cultura territorializada: o caso da Biblioteca P?blica Estadual Levy C?rcio da Rocha“. Pontif?cia Universidade Cat?lica de Campinas, 2006. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/797.
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Previous issue date: 2006-02-13The origin of the Science of the Information as interdisciplinary science, enrolled in the Post-modern context, it considers information a product integrated to the social cycle that it foresees its circulation and use. In this sense, the Public Library, as institution that collect culture should contemplate the development of collections compromised with the local community's culture, making available a space in the society where the individual can exercise its creativity and the exaltation of his/her citizenship, contributing like this to the elaboration and preservation of the local cultural identity. To identify the way for which fellow creature process if it renders, it is made a historical rising of the appearance of the Public Libraries in Brazil, being drawn a parallel one among BP idealized by M?rio of Andrade and the characterization of the performance of first BP of Esp?rito Santo State. Finally, through empiric study, it tries to develop possibilities of effective viabilization of the access to the culture through BP.
A origem da Ci?ncia da Informa??o como ci?ncia interdisciplinar, inscrita no contexto P?s-Moderno, considera informa??o um produto integrado ao ciclo social que prev? sua circula??o e uso. Neste sentido, a Biblioteca P?blica, como institui??o coletora de cultura deve contemplar o desenvolvimento de cole??es compromissadas com a cultura da comunidade local, disponibilizando um espa?o na sociedade onde o indiv?duo possa exercer sua criatividade e o enaltecimento de sua cidadania, contribuindo assim para a elabora??o e preserva??o da identidade cultural local. Para identificar o modo pelo qual semelhante processo se concretiza, faz-se um levantamento hist?rico do surgimento das Bibliotecas P?blicas no Brasil, tra?ando-se um paralelo entre a BP idealizada por M?rio de Andrade e a caracteriza??o da atua??o da primeira BP do Estado do Esp?rito Santo. Finalmente, atrav?s de estudo emp?rico, procura-se desenvolver possibilidades de efetiva viabiliza??o do acesso ? cultura via BP.
10
Krief, Philippe. „M. P. V. C. : un systeme interactif de construction d'environnements de prototypage de multiples outils d'interpretation de modeles de representation“. Paris 8, 1990. http://www.theses.fr/1991PA080555.
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Cette these presente la conception et la realisation d'un systeme interactif de construction d'environnements de prototypage. Notre systeme, m. P. V. C. , est base sur une approche tripartite de la construction de programmes : la partie modele decrit l'organisation des donnees manipulees par le programme, la partie controleur decrit le parcours de ces donnees et la partie point-de-vue decrit l'interpretation a donner a ce parcours. M. P. V. C. Est une methode de conception par objet facilitant la mise en oeuvre d'un grand nombre d'outils d'interpretation, de manipulation, d'observation et d'animation de modeles de representation. Elle permet de separer clairement les aspects mecaniques d'un programme de ses aspects semantiques. Les aspects mecaniques decrivent la facon de parcourir les donnees, independamment de toute interpretation. Ces interpretations font parties des aspects semantiques. Les utilisateurs de l'environnement de prototypage m. P. V. C. Disposent d'un ensemble d'outils graphiques de haut niveau leur permettant de concevoir aisement et dans un temps minimum le modele qu'ils veulent prototyper, de multiples schemas mecaniques pour le parcourir de differentes facons et de multiples schemas semantiques pour interpreter chaque etape des differents parcours. Rien n'exclus d'appliquer ces parcours et tout ces interpretations a de multiples representations du meme modele. De plus, cet environnement favorise une attitude resolument speculative de la part du concepteur vis-a-vis du modele etudie : il construit simultanement les interpretes et les outils necessaires a leur experimentation et leur validation. Une des autres caracteristiques importantes de m. P. V. C. Reside dans le fait que l'on peut appliquer en parallele - differentes semantiques a un meme parcours du modele. Ceci permet au systeme d'etre utilises pour son propre developpement ainsi que pour l'observation de son fonctionnementThis thesis presents the design and implementation of an interactive system for the development of prototyping environments. Our system, m. P. V. C. , follows closely our specific understanding of program construction in which each program is composed of three distincts parts. These parts are: the model, which describes the program's data organisation, the controller, which describes how to walkthrough this data organisation, and the point-of-view, which describes the interpretation of each step of the walkthrough. M. P. V. C. Is an object-oriented design method facillating the implementation of a large number of tools for the interpretation, manipulation, observation and animation of models representing programs and data structures. It allows to clearly separate the program's mechanical aspects of its semantic aspects. The mechanical aspects describe how to walkthrough the model, ignoring all possible interpretations. The interpretations are part of the semantic aspects. Users of m. P. V. C. Prototyping environment dispose of a set of very high level, graphical tools permitting to design easily, in a minimum amount of time, the model they want to prototype, multiple mechanical schemas able to walkthrough in different ways and multiple semantic schemas permitting to interprete in various ways each step of a walkthrough. Nothing excludes to apply these walkthroughs and or interpretations to multiple representations of the same model. As such, it favours an exploratory or experimental attitude towards prototyping. Users construct simultaneously the interpreters and the tools necessary to experiment and validate them. Another important aspect of m. P. V. C. Is that it permits to apply - in parallel - several different semantics to a same walkthrough of a model. It is this caracteristic which permit the system to he used for its own development and the observation of its own functioning
11
Lee, Chul-Woo. „Critique de la raison vue à travers des pensées de J. -F. Lyotard et P. Thevenaz“. Paris 8, 2007. http://octaviana.fr/document/128805218#?c=0&m=0&s=0&cv=0.
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L’expérience postmoderne entraîne Lyotard à déclarer le déclin des métarécits et la perte de la raison universelle et unificatrice qui les rend possibles, alors que l’expérience chrétienne conduit Thévenaz à renverser radicalement toute pensée philosophique. Face à la crise de la raison, Lyotard aboutit à prétendre la mort de la philosophie par les voies de post-modernité expérimentale, alors que Thévenaz prétend la nécessité de la philosophie par l’analyse réflexive dans une perspective chrétienne. Il s’agit donc d’un passage d’un philosophe incroyant à un philosophe croyant. Car l��imputation de folie par la Parole de Dieu – la sagesse de ce monde n’est que folie devant Dieu – pénètre dans toute la démarche de la pensée philosophique. En contestant ainsi radicalement la raison elle-même, elle rend possible l’explicitation de la conscience de soi et la radicalisation de la philosophie. A partir de cette perspective chrétienne, qui est la philosophie de la vocation et de la responsabilité, surgit la philosophie autonome. Cette thèse sera donc à la fois une approche anthropologique sur l’homme et la réexamination du statut ontologique de la raison dans cette perspective chrétienneThe post-modern experience lead Lyotard to declare the delcline of the meta-récits and loss of the universal reason which makes them possible, whereas the christian experience lead Thévenaz to upset fundamentally all of the philosopic thought. From the crisis of the reason, the former is arrived to pretend the death of the philosophy by the way ot the post-modernity, whereas the latter pretends the necessity of the philosophy by the reflexive analysis in a christian perspective. Therefore, that is the problem of the passage from a non-christian philosopher to a christian philosopher. Because the imputation of the foolishness by the word of God – For the wisdom of this world is foolishness with God – penetrate in all of the course of the philosophic thought. Reason makes possible the manifestation of the self-consciousness and the radicalization of the philosophy. From the christian perspective, which is the philosophy of the vocation et of the responsibility, spring up the autonomous philosophy. This thesis would be therefore at the same time an anthropological reproach on man and the re-examination of the ontological status of the reason in this christian perspective
12
Krueger, M. [Verfasser]. „Messung des differentiellen Wirkungsquerschnittes der Reaktion π⁻p-->eta n bei Pionimpulsen von 15,25 und 40 GeV/c / M. Krueger“. Karlsruhe : KIT-Bibliothek, 2011. http://d-nb.info/1189178699/34.
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Ragheb, Fadi. „The M3 muscarinic acetylcholine receptor mediates p42 [superscript]m [superscript]a [superscript]p [superscript]k activation and c-fos mRNA expression in oligodendrocyte progenitors“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0025/MQ50862.pdf.
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Gruber, Stefanie Michaela [Verfasser], Johann P. [Akademischer Betreuer] Plank, Johann P. [Gutachter] Plank und Kai-Olaf M. [Gutachter] Hinrichsen. „Physikochemische, chemische und mechanische Konzepte zur Erzielung eines Stabilisierers für die Tiefbohrzementierung unter extremen Temperaturbedingungen (150 – 200 °C) / Stefanie Michaela Gruber ; Gutachter: Johann P. Plank, Kai-Olaf M. Hinrichsen ; Betreuer: Johann P. Plank“. München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1223616967/34.
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15
Bayan, Nicolas. „Role de l'acyl carrier protein (a. C. P. ) dans la biosynthese des oligosaccharides osmoregules (m. D. O. ) chez e. Coli : etude de l'interaction a.c.p.-proteines membranaires“. Paris 11, 1990. http://www.theses.fr/1990PA112196.
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Le m. D. O. (membrane derived oligosaccharides) est une famille d'oligosaccharides glucosidiques que l'on trouve dans le periplasme d'escherichia coli ainsi que dans celui de nombreuses autres bacteries a gram negatif. La synthese du m. D. O. Dans les bacteries depend de l'osmolarite du milieu exterieur. Elle est tres fortement stimulee lors d'un stress hypoosmotique. Bien que les enzymes impliques dans la synthese de ces composes soient encore mal connus il est possible de reproduire in vitro l'etape de synthese du squelette glucosidique du m. D. O. Cette etape, catalysee par la glucosyltransferase, necessite la cooperation entre un composant proteique membranaire et l'acyl carrier protein (a. C. P. ). Dans ce travail, nous montrons que l'a. C. P. Possede des recepteurs proteiques a la surface de la membrane cytoplasmique. Les resultats que nous presentons indiquent qu'une partie de ces recepteurs est constituee par la glycerol-3-phosphate acyltransferase et le composant proteique membranaire implique dans l'etape de biosynthese du squelette glucosidique du m. D. O. Nous montrons egalement, que in vitro, l'a. C. P. Est un modulateur positif du systeme enzymatique de la glucosyltransferase. De plus il apparait clairement que la force ionique du milieu diminue l'affinite de l'a. C. P. Pour ce systeme. Cette modification entraine une diminution de l'activite de la glucosyltransferase. Dans ces conditions nous proposons l'hypothese selon laquelle une interaction entre l'a. C. P. Et le composant membranaire de la glucosyltransferase serait essentielle a la catalyse in vivo de l'etape de biosynthese de la chaine glucosidique du m. D. O. Il est alors tentant d'imaginer que la regulation osmotique de la synthese du m. D. O. Soit realisee par l'intermediaire de l'a. C. P.
16
VIALA, MARIE-PAULE. „Le c. A. M. S. P. (centre d'action medico-social precoce) de saint-etienne : a propos de 120 enfants ; leur prise en charge au c.a.m.s.p. et leur devenir“. Saint-Etienne, 1990. http://www.theses.fr/1990STET6211.
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Medeiros, Amanda Lucena de. „Influ?ncia do m?todo de s?ntese e caracteriza??o de p?s comp?sitos de NiO- Ce1-xEuxO2-δ para anodos catal?ticos de c?lulas a combust?vel“. Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12795.
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Previous issue date: 2013-02-06Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Fuel cells are electrochemical devices that convert chemical energy into electricity. Due to the development of new materials, fuel cells are emerging as generating clean energy generator. Among the types of fuel cells, categorized according to the electrode type, the solid oxide fuel cells (SOFC) stand out due to be the only device entirely made of solid particles. Beyond that, their operation temperature is relatively high (between 500 and 1000 ?C), allowing them to operate with high efficiency. Another aspect that promotes the use of SOFC over other cells is their ability to operate with different fuels. The CeO2 based materials doped with rare earth (TR+3) may be used as alternatives to traditional NiO-YSZ anodes as they have higher ionic conductivity and smaller ohmic losses compared to YSZ, and can operate at lower temperatures (500-800?C). In the composition of the anode, the concentration of NiO, acting as a catalyst in YSZ provides high electrical conductivity and high electrochemical activity of reactions, providing internal reform in the cell. In this work compounds of NiO - Ce1-xEuxO2-δ (x = 0.1, 0.2 and 0.3) were synthesized from polymeric precursor, Pechini, method of combustion and also by microwave-assisted hydrothermal method. The materials were characterized by the techniques of TG, TPR, XRD and FEG-SEM. The refinement of data obtained by X-ray diffraction showed that all powders of NiO - Cex-1EuxO2-δ crystallized in a cubic phase with fluorite structure, and also the presence of Ni. Through the characterizations can be proved that all routes of preparation used were effective for producing ceramics with characteristics suitable for application as SOFC anodes, but the microwave-assisted hydrothermal method showed a significant reduction in the average grain size and improved control of the compositions of the phases
C?lulas a combust?vel s?o dispositivos eletroqu?micos que convertem a energia qu?mica em el?trica. Em virtude do desenvolvimento de novos materiais, as c?lulas a combust?vel v?m se destacando como promissores na gera??o de energia de forma limpa. Dentre os tipos de c?lulas a combust?vel, classificadas de acordo com o tipo de eletr?lito, destacam-se as de ?xido s?lido (SOFC), por serem as ?nicas inteiramente constitu?das por s?lidos. Al?m disso, pela sua temperatura de opera??o ser relativamente elevada (entre 500 e 1000 ?C), estas c?lulas operam com alta efici?ncia. Outro aspecto que favorece o emprego de SOFC ? a sua habilidade de operar com diferentes combust?veis, como fontes de hidrog?nio.Os materiais a base de CeO2 dopados com terras raras (TR+3) podem ser utilizados como alternativas aos tradicionais anodos de NiO-YSZ. Al?m de maior condutividade i?nica maior e menores perdas ?hmicas, elas podem operar a temperaturas mais baixas (500- 800?C). Na composi??o do anodo, a concentra??o de NiO, atuando como catalisador confere alta condutividade el?trica e alta atividade eletroqu?mica das rea??es, proporcionando a reforma interna do combust?vel na c?lula. Neste trabalho compostos de NiO - Ce1-xEuxO2-δ (x = 0,1; 0,2 e 0,3), foram sintetizados a partir do m?todo dos precursores polim?ricos, Pechini, do m?todo de combust?o e, tamb?m, pelo m?todo hidrotermal assistido por micro-ondas. Os materiais obtidos foram caracterizados atrav?s das t?cnicas de TG, DRX, TPR e MEV-FEG. O refinamento dos dados obtidos pela difra??o de raios X indicou que todos os p?s de NiO - Ce1- xEuxO2-δ cristalizaram-se em uma fase c?bica com estrutura fluorita, e tamb?m a presen?a de NiO. Todas as rotas de prepara??o utilizadas mostraram-se eficientes para a produ??o de p?s com caracter?sticas adequadas para aplica??o como anodos de SOFC, por?m o m?todo hidrotermal assistido por micro-ondas apresentou significativa redu??o do tamanho m?dio de gr?os e melhor controle das composi??es das fases
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Sena, Michael Segundo. „Avalia??o do potencial fotocatal?tico do molibdato de c?rio obtido pelo m?todo EDTA/citrato na degrada??o do azul de metileno“. PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA QU?MICA, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/22545.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Neste trabalho, foram sitetizados materiais cer?micos nanom?tricos da fam?lia das scheelitas, o molibdato de c?rio, atrav?s do m?todo de complexa??o combinada EDTA-Citrato. Realizou-se um planejamento experimental fatorial 2? com tr?s repeti??es no ponto central para avaliar a influ?ncia dos par?metros de s?ntese, pH (5, 7,5 e 10), taxa de aquecimento (5, 7 e 10 ?C.min-1) e tempo de calcina??o (3, 4 e 5 h), na forma??o da fase, no tamanho m?dio de cristalito e no band gap do material. Os p?s foram caracterizados atrav?s das an?lises TG/DSC, DRX, EDX, MEV e DRS-UV/Vis. Atrav?s da curva da an?lise TG/DSC, observou-se a decomposi??o dos org?nicos at? a temperatura de 600 ?C, temperatura a qual foi utilizada na calcina??o dos precursores. Os difratogramas dos p?s obtidos foram indexados com a ficha cristalogr?fica JCPDS (Joint Committee on Powder Diffraction Standards) com c?digo de referencia 01-070-1382 de estrutura monocl?nica do tipo Scheelita e grupo espacial C2/c. N?o foram identificadas fases secund?rias. Os difratogramas foram refinados pelo m?todo Rietveld, onde foram obtidos os par?metros de rede e volume de c?lula unit?ria. As an?lises de EDX (% at?mica) mostram que h? desvios m?ximos de 15 e 10% entre as porcentagens at?micas te?ricas e experimentais de Ce e Mo, respectivamente. Atrav?s das imagens de MEV, observou-se que os p?s s?o formados por aglomerados de part?culas de tamanhos e formato heterog?neos, formando um material poroso. O estudo do tamanho de cristalito foi feito baseado na interpreta??o dos dados dos difratogramas. Utilizou-se os m?todos de Halder-Wagner-Langford (HWL) e de Scherrer, revelando tamanho m?dio de cristalitos variando entre 11,67 e 32,75 nm. As propriedades ?pticas das nanopart?culas foram avaliadas por meio da an?lise de DRS-UV/Vis atrav?s da qual foram medidos os band gap ?pticos que variaram entre 2,33 e 2,43 eV, caracter?stico de materiais semicondutores com potencial para aplica??es fotocatal?ticas utilizando a luz vis?vel como fonte de radia??o. O m?todo de s?ntese utilizado mostrou-se eficiente para produ??o de um material cristalino, monof?sico e de tamanho nanom?trico. Observou-se que a s?ntese realizada com pH 5, taxa de aquecimento de 5?C.min-1 e tempo de calcina??o de 3h se mostrou mais adequada para produ??o do material com as caracter?sticas desejadas de tamanho de cristalito e band gap. Os testes de fotocat?lise indicaram que o material sintetizado possui alto potencial de adsor??o do corante em pH 2, alcan?ando uma remo??o de quase 95% do corante em 30 minutos de contato, sem irradia??o de luz. O estudo do efeito da concentra??o de catalisador indicou que a diminui??o da concentra??o de molibdato de c?rio para 0,125 g.L-1 aumentou o potencial de remo??o de corante para 99% em 3 horas de rea??o. Observou-se ainda atrav?s dos testes fotocatal?ticos que a diminui??o da concentra??o do corante ocorreu pela adsor??o do azul de metileno na superf?cie do material sem degrada??o da mat?ria org?nica, dentro das condi??es experimentais adotadas. Os resultados de cin?tica de adsor??o indicaram que a adsor??o do azul de metileno nas part?culas de molibdato de c?rio pode ser descrita pelo modelo de pseudo-segunda ordem para as condi??es estudados no trabalho.
In this work, nanosized ceramic materials of scheelite family were synthesized, the cerium molybdate, through the combined complexing method EDTA-Citrate. It was conduced a 2? factorial design with three central points to evaluate the influence of synthesis parameters pH (5, 7.5 and 10), heating rate (5, 7 and 10 ? C min-1) and calcination time (3, 4, and 5 hr), on phase formation, the crystallite size and the band gap of the material. The powders were characterized by TG/DSC, XRD, EDX, SEM and DRS-UV/Vis analysis. Through TG/DSC curve, it was observed the decomposition of organics until 600 ?C, which this temperature was used in the calcination of the precursors. The XRD powders patterns were indexed to the crystallographic card JCPDS (Joint Committee on Powder Diffraction Standards) n? 01-070-1382 of Scheelite type with monoclinic structure and space group C2/c. No secondary phases were identified. The XRD patterns were refined by Rietveld method, where the lattice parameters and unit cell volume were obtained. The EDX analysis (atomic %) show that there is maximum deviation of 15 and 10% on the theoretical and experimental atomic percentages of Ce and Mo, respectively. Through the SEM images, it was observed that the powders are formed by particles agglomerations of heterogeneous format and size, forming a porous material. The crystallite size study was done based on the interpretation of data from the XRD patterns. It was used the Halder-Wagner-Langford (HWL) and Scherrer methods, revealing average size of crystallites ranging between 11.67 and 32.75 nm. The optical properties of the nanoparticles were evaluated using the DRS-UV/Vis analysis whereby the optical band gap were measured ranging from 2.33 to 2.43 eV, classifying the material as a semiconductor with potential for photocatalytic applications using visible light as the radiation source. The synthesis method used was efficient for the production of a crystalline, nanosized and single phase material. It was observed that the synthesis performed at pH 5, heating rate of 5 ?C min-1, and calcination time of 3hr were more suitable for the production of materials with the desired characteristics of crystallite size and band gap. Photocatalysis tests indicated that the synthesized material has a high potential for dye adsorption at pH 2, achieving a removal of nearly 95% of the dye in 30 minutes of contact, without light irradiation. The study of the effect of catalyst concentration indicated that the decrease of concentration of cerium molybdate to 0,125 g.L-1 increased dye removal potential to 99% in 3 hours of reaction. It was also observed through the photocatalytic tests that the decrease in concentration of the dye occurred by methylene blue adsorption on the material surface without degradation of organic matter, within the experimental conditions. The adsorption kinetics results indicated that the adsorption of Methylene Blue on cerium molybdate particles can be described by the pseudo second-order model for the conditions studied in this work.
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Moriyama, Andr? Luiz Lopes. „S?ntese e caracteriza??o de tungstatos de c?rio e estr?ncio para fins catal?ticos“. Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15812.
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The main goal of this work was to produce nanosized ceramic materials of the family of the tungstates (tungstates of cerium and strontium), and test them for their catalytic activity in processes involving the transformation of methane (CH4). The methodology used for the synthesis of the ceramic powders involved the complexation combining EDTA-citrate. The materials characterization was performed using simple and differential thermogravimetry, x-ray diffraction, transmission electron microscopy, and energy dispersive spectroscopy (EDS). The microstructure analysis was performed using the refinement by the Rietveld method, and the crystallite size and distribution of the materials was elucidate by the Scherrer and Williamson-Hall methods. The conditions of the synthesis process for the three envisaged materials (SrWO4, SrWO4 using tungsten oxide concentrate as raw material, and Ce2(WO4)3) were adjusted to obtain a single phase crystalline material. The catalytic tests were carried out in the presence of methane and synthetic air, which is composed of 21% O2 and 79% N2. The analysis of the conversion of the reaction was done with the aid of an fourier transform infrared device (FTIR). The analysis showed that, structurally, the SrWO4 produced using raw materials of high and poor purity (99% and 92%, respectively) are similar. The ideal parameters of calcination, in the tested range, are temperature of 1000 ?C and time of calcination 5 hours. For the Ce2(WO4)3, the ideal calcination time and are temperature 15 hours and 1000?C, respectively. The Williamson-Hall method provided two different distributions for the crystallite size of each material, whose values ranged between the nanometer and micrometer scales. According to method of Scherrer, all materials produced were composed of nanometric crystallites. The analyses of transmission electron microscopy confirmed the results obtained from the Williamson- Hall method for the crystallite size. The EDS showed an atomic composition for the metals in the SrWO4 that was different of the theoretical composition. With respect to the catalytic tests, all materials were found to be catalytically active, but the reaction process should be further studied and optimized.
O objetivo principal deste trabalho foi produzir materiais cer?micos nanom?tricos da fam?lia dos tungstatos (tungstatos de c?rio e de estr?ncio), e test?-los quanto ?s suas atividades catal?ticas em processos envolvendo a transforma??o do g?s metano (CH4). A metodologia empregada para a s?ntese dos p?s cer?micos envolveu o m?todo de complexa??o combinando EDTA-Citrato. A caracteriza??o dos materiais foi feita atrav?s das t?cnicas de termogravimetria simples e diferencial, difra??o de raios-x, microscopia eletr?nica de transmiss?o, e espectroscopia de energia dispersiva (EDS). A an?lise da microestrutura foi realizada atrav?s do refinamento utilizando o m?todo de Rietveld, e para a estima??o do tamanho de gr?o e de sua distribui??o foram utilizados os m?todos de Scherrer e Williamson-Hall. As condi??es de obten??o dos tr?s materiais desenvolvidos (SrWO4, SrWO4 utilizando concentrado de ?xido de tungst?nio como mat?ria-prima, e Ce2(WO4)3) foram ajustadas para a obten??o de um material cristalino monof?sico. Os testes catal?ticos explorat?rios foram realizados na presen?a dos gases metano e ar sint?tico, composto por 21% de O2 e 79% N2. A an?lise da convers?o foi feita com o aux?lio de um equipamento de infravermelho ? transformada de Fourier. As an?lises mostraram que, estruturalmente, os materiais SrWO4 produzidos com mat?riaprima de elevada pureza (99% de pureza) e oriunda do concentrado de ?xido de tungst?nio (92% de pureza) s?o semelhantes. Seus par?metros ideais de produ??o, dentro do que foi testado, s?o temperatura de calcina??o de 1000?C e tempo de perman?ncia de 5 horas na isoterma. Para o Ce2(WO4)3, as condi??es ideais dentro do que foi testado s?o temperatura de calcina??o de 1000?C e tempo de perman?ncia na isoterma de 15 horas. O m?todo de Williamson-Hall forneceu duas distribui??es diferentes para o tamanho de cristalito de cada material, cujos valores oscilaram entre as escalas nanom?tricas e microm?tricas. Com o m?todo de Scherrer, todos os materiais produzidos possu?ram tamanho de cristalito nanom?trico. As an?lises de microscopia eletr?nica de transmiss?o confirmaram o resultado obtido com o m?todo de Williamson- Hall para o tamanho de cristalito. A EDS indicou a presen?a de diverg?ncias entre a composi??o at?mica met?lica te?rica e experimental do SrWO4. Com rela??o aos testes catal?ticos explorat?rios, os materiais se mostraram ativos por?m o processo reacional ainda precisa ser melhor estudado e otimizado.
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Giraudon, Cyril. „Contribution à la simulation électromagnétique dans le domaine temporel : Approches électromagnétique et informatique“. Limoges, 2002. http://www.theses.fr/2002LIMO0019.
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Le travail présenté dans ce document concerne la simulation électromagnétique par la méthode des Différences Finies dans le Domaine Temporel. Dans un premier temps, nous nous intéresserons à la formulation des P. M. L. De Bérenger par produit de convolution en signalant leur utilisation pour le sondage de sol, puis nous développons un formalisme de fils obliques basé sur les fils minces de Holland et une méthode de réduction de temps de calcul par insertion de pertes électriques et magnétiques dans le volume de calcul. Dans un second temps, nous entamons une réflexion sur la conception de logiciels scientifiques, notre préoccupation est l'évolutivité et la personnalisation des outils élaborés. Le choix totalement modulaire de programmation permet d'atteindre ces objectifs mais nous conduit en plus à considérer d'une manière plus ouverte la parallélisation de codes, ainsi que le couplage de méthodes.
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Abosbaia, Alhadi Amar Salem. „Design and processing of low alloy high carbon steels by powder metallurgy : P/M processing and liquid phase sintering of newly designed low-alloy high carbon steels based on Fe-0.85Mo-C-Si-Mn with high toughness and strength“. Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4857.
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The work presented has the ultimate aim to increase dynamic mechanical properties by improvements in density and optimisation of microstructure of ultra high carbon PM steels by careful selection of processes, i.e. mixing, binding, alloying, heating profile and intelligent heat treatment. ThermoCalc modelling was employed to predict liquid phase amounts for two different powder grades, Astaloy 85Mo or Astaloy CrL with additive elements such as (0.4-0.6wt%)Si, (1.2-1.4wt%)C and (1-1.5wt%)Mn, in the sintering temperature range 1285-1300ºC and such powder mixes were pressed and liquid phase sintered. In high-C steels carbide networks form at the prior particle boundaries, leading to brittleness, unless the steel is heat-treated. To assist the breaking up of these continuous carbide networks, 0.4-0.6% silicon, in the form of silicon carbide, was added. The water gas shift reaction (C + H2O = CO + H2, start from ~500ºC) and Boudouard reaction (from ~500ºC complete ~930ºC) form CO gas in the early part of sintering and can lead to large porosity, which lowers mechanical properties. With the use of careful powder drying, low dew point atmospheres and optimisation of heating profiles, densities in excess of 7.70g/cm3 were attained. The brittle microstructure, containing carbide networks and free of cracks, is transformed by intelligent heat treatment to a tougher one of ferrite plus sub-micron spheroidised carbides. This gives the potential for production of components, which are both tough and suitable for sizing to improve dimensional tolerance. Yield strengths up to 410 MPa, fracture strengths up to 950 MPa and strains of up to 16 % were attained. Forging experiments were subsequently carried out for spheroidised specimens of Fe-0.85Mo+06Si+1.4C, for different strain rates of 10-3, 10-2, 10-1 and 1sec-1 and heated in argon to 700ºC, density ~7.8g/cm3 and 769 MPa yield strength were obtained.
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Abosbaia, Alhadi A. S. „Design and processing of low alloy high carbon steels by powder metallurgy. P/M processing and liquid phase sintering of newly designed low-alloy high carbon steels based on Fe-0.85Mo-C-Si-Mn with high toughness and strength“. Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4857.
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The work presented has the ultimate aim to increase dynamic mechanical properties by improvements in density and optimisation of microstructure of ultra high carbon PM steels by careful selection of processes, i.e. mixing, binding, alloying, heating profile and intelligent heat treatment. ThermoCalc modelling was employed to predict liquid phase amounts for two different powder grades, Astaloy 85Mo or Astaloy CrL with additive elements such as (0.4-0.6wt%)Si, (1.2-1.4wt%)C and (1-1.5wt%)Mn, in the sintering temperature range 1285-1300ºC and such powder mixes were pressed and liquid phase sintered. In high-C steels carbide networks form at the prior particle boundaries, leading to brittleness, unless the steel is heat-treated. To assist the breaking up of these continuous carbide networks, 0.4-0.6% silicon, in the form of silicon carbide, was added. The water gas shift reaction (C + H2O = CO + H2, start from ~500ºC) and Boudouard reaction (from ~500ºC complete ~930ºC) form CO gas in the early part of sintering and can lead to large porosity, which lowers mechanical properties. With the use of careful powder drying, low dew point atmospheres and optimisation of heating profiles, densities in excess of 7.70g/cm3 were attained. The brittle microstructure, containing carbide networks and free of cracks, is transformed by intelligent heat treatment to a tougher one of ferrite plus sub-micron spheroidised carbides. This gives the potential for production of components, which are both tough and suitable for sizing to improve dimensional tolerance. Yield strengths up to 410 MPa, fracture strengths up to 950 MPa and strains of up to 16 % were attained. Forging experiments were subsequently carried out for spheroidised specimens of Fe-0.85Mo+06Si+1.4C, for different strain rates of 10-3, 10-2, 10-1 and 1sec-1 and heated in argon to 700¿C, density ~7.8g/cm3 and 769 MPa yield strength were obtained.Libyan Education Ministry Office
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Mulvey, Margaret N. „The School Fugue: Its Place in the Organ Repertoire of the French Symphonic School, a Lecture Recital, Together with Three Recitals of Selected Works of J.S. Bach, D. Buxtehude, C. Franck, P. Eben, F. Mendelssohn, R. Schumann, M. Reger and Others“. Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278639/.
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This study focuses on the central role which fugue d'ecole, as defined and taught by the post-revolutionary Conservatoire de Paris, played in re-establishing standards of excellence in organ composition and aiding the development of the French Symphonic Organ School. An examination of counterpoint and fugue treatises by Cherubini, Dubois, and Gedalge reveals the emergence of a specific school fugue form, intended for academic purposes only, as a means to instilling discipline and honing the technical skills required in all forms of musical composition.
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Lay, James. „La bourse et les mecanismes de financement des p. M. E-p. M. I“. Poitiers, 1986. http://www.theses.fr/1986POIT309T.
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Il faut attendre 1983 avec la creation du second marche pour voir la communaute financiere et boursiere s'interesser aux petites et moyennes entreprises. Cette nouvelle structure d'accueil permanente rencontre rapidement un succes et semble repondre aux differentes motivations des chefs d'entreprise. Pour que ce phenomene se generalise, les intermediaires financiers (banques, agents de change, bourses regionales, cabinets specialises) doivent faire l'effort de prospection, d'information, de conseils. En effet s'introduire en bourse n'est pas une decision a prendre a la legere. Chaque entreprise represente un cas marginal qui merite d'etre analyse. La cle de la reussite d'une bonne introduction passe par l'elaboration d'un complet dossier d'introduction qui aboutit a retenir un cours ni trop eleve, ni trop bas. Cent soixante entreprises sont ainsi venues sur ce second marche (sans compter le hors cote d'acclimatation)permettant au marche financier francais de se regenerer avec des societes plus jeunesIt was only in 1983 that the financial community took interest in middle sized firms with the creation of the second market. This new ceaseless structure replies to the wishes of the managers of these firms. For the generalization of this phenomena, all the financial middlemen (banks, stockbrokers, local stock-exchange. . . . ) have to put the emphasis on : prospection, informations, advices. In fact, getting in stock-exchange musn't be an unthinkly decision. Each firm muste be regarded as one particular case whiche requier a deep analysis. The key to success states on the elaboration of a complete get in dossier. This will end at the establishement of the real market price of the share. Yet, one hundred and sixtie companies have been welcomed on the second market ("hors cote d'acclimation" excluded) this situation allowed the financial market to regenerate itself with new younger companies
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Pautard, Stéphane. „La P. M. E. Italienne“. Bordeaux 4, 1997. http://www.theses.fr/1997BOR40029.
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Pourquoi la p. M. E. Italienne? Cette question a ete soulevee de nombreuses fois et le regain d'interet pour la p. M. E. Et p. M. I. D'une maniere generale suffit pour s'en convaincre. La plupart des chercheurs s'attachent desormais a etudier de nouveaux modes de gestion des p. M. E. Qui reussissent, et cherchent a mettre en evidence leurs specificites en matiere strategique ou financiere par rapport aux grandes entreprises. L'italie reste a bien des egards un champ d'etudes inexploite par les auteurs francais. Les p. M. E. Et p. M. I. Italiennes ont ete jugees par de nombreux chercheurs, comme particulierement flexibles et competitives. L'objectif de notre recherche est d'analyser les specificites de la p. M. E. -p. M. I. Italienne et contribuer a apporter un regard nouveau sur la performance de leurs comportements strategiques. La p. M. E. Italienne se caracterise par une implantation active a l'espace regional et par une structure d'organisation polyforme. Ce polyformisme est un facteur cle de succes qui a sa part dans la performance reconnue de la p. M. E. -p. M. I. Italienne. L'integration verticale et horizontale regionale, l'interdependance entre les p. M. E. , les differentes structures de reseaux, agissent de maniere interactive sur leurs comportements strategiques et financiers. Notre etude se propose donc, d'eclairer les facteurs de performance de la p. M. E. Italienne, a partir d'un echantillon de 37 p. M. E. Situees dans un district industriel marshallien du nord de l'italie. Les resultats de l'analyse descriptive et multidimensionnelle souligneront le particularisme et l'originalite des comportements strategiques de ces p. M. EWhy the italian small and medium businesses? This question has been often raised and the new interest for the small and medium business as a rule speaks for itself. Most researchers currently agree to analyze new means of management in successful small and medium businesses and seek for pointing out their characteristics in terms of strategy and/or finance in comparison with big companies. The italian economy remains an uncompleted study in many sectors by french researchers, whereas italian small and medium business are often shown as particularly flexible and very competitive. The aim of this research consists of identifying the main characteristics of the italian small and medium businesses and adding a new vision about their competitiveness and strategic inter-activity. The significantaspects of italian small and medium businesses are an active localization and "polyformism" organization. This typical organization seems to be a successful factor of their competitiveness. The vertical and horizontal regional integration, the interdependence between small and medium businesses and the different structures in networks, are dynamic components for their strategic or/and financial attitude. These networks are known as "industrial districts". This research attempts to give us new answers from a sample of 37 italian small and medium business located in an identified "marshall" industrial district in the north of italy. The results of this study have underlined typical and original management in a regional structure network
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ACHY, GERARD. „Le recentrage d'activites industrielles et commerciales des p. M. E. -p. M. I. En cote-d'ivoire“. Caen, 1989. http://www.theses.fr/1989CAEN0529.
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Dans une economie bouleversee par la baisse des prix des matieres premieres des produits agricoles et par les mutations technologiques qui ont une forte incidence sur la nature de la competitivite industrielle, commerciale et donc sur la strategie de l'entreprise, bon nombre d'entreprises en cote-d'ivoire sont confrontees a des difficultes financieres. Celles-ci recherchent des strategies pour survivre et accroitre leur position concurrentielle. Une telle recherche nous conduit a proposer aux dirigeants d'entreprise le recentrage d'activites comme un axe strategique porteur d'avenirIn an economy disturbed by the falling prices of raw material, of agrical products and also by technological changes which have a great incidence on the nature of industrial and commercial competitivity and thus on the strategy of the enterprise, most of compagnies in cote-d'ivoire are faced with financial difficulties. The batter inquire into strategies to survive and increase their competitive position. Such a quest leads one to suggest to managers the "recentrage" of activities as a solution to this problem
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Johnson, Paul W. „P-M characteristics of reinforced concrete sections“. Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1239896186/.
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Ouhsaine, Fatima. „Phosphamétallapropènes -P=C(X)-E(X')< et phosphamétallaallènes -P=C=E<(E=Si, Ge)“. Phd thesis, Université Paul Sabatier - Toulouse III, 2009. http://tel.archives-ouvertes.fr/tel-00450166.
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Ce travail concerne l'étude des hétéroallènes E=C=E', analogues supérieurs des allènes, pour lesquels E et E' sont des éléments lourds des groupes 14 et 15. L'engouement suscité par ces hétéroallènes est dû au fait qu'ils apparaissent comme des briques moléculaires de choix en synthèse hétérocyclique et organométallique grâce notamment à la présence de deux doubles liaisons juxtaposées; de plus ils sont également très intéressants d'un point de vue théorique avec notamment la détermination de la nature des doubles liaisons et de la géométrie de la molécule pour déterminer s'ils présentent une structure proche de celle des allènes ou non. Ce travail est développé en quatre parties : après un rappel bibliographique dans le premier chapitre sur la chimie des hétéroallènes possédant des atomes de phosphore, de germanium et de silicium, nous avons présenté dans les deuxième et troisième chapitres la synthèse, la première structure aux rayons X et l'étude de la réactivité du premier phosphagermaallène stable vis-à-vis des chalcogènes (S, Se, Te), de dérivés carbonylés (aldéhydes et cétone α-éthyléniques, acrylates, cétone énolysable) et du disulfure de carbone. Dans le quatrième chapitre, après un rappel bibliographique sur les phosphasilaallènes –P=C=Si<, la synthèse de nouveaux phosphasilapropènes –P=C(X)-Si(X')< est ensuite décrite ainsi que leurs structures aux rayons X. Un premier essai d'obtention de phosphasilaallène à partir de ces nouveaux phosphasilapropènes est décrit
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Robic, Paulette. „Strategie de diversification des p. M. E. Mesure et analyse - le cas de p. M. E. Du secteur laitier -“. Rennes 1, 1989. http://www.theses.fr/1989REN11007.
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A partir d'une proposition de mesure de la diversification specifique aux pme et sur la base d'informations recueillies aupres de 22 pme du secteur laitier une typologie du comportement de diversification de ces entreprises a ete degagee et les determinants de ces comportements analyses. Il ressort de cette typologie que les pme rencontrees orientent leur diversification selon leur phase d'evolution : d'abord vers les marches nationaux, puis internationaux et ensuite vers les competences technologiques, fondement de la diversification produits. De l'analyse des determinants de ces types de comportement de diversification, il ressort que la taille peut jouer un role de stimulateur et non pas innibiteur comme elle semble le faire pour les grandes entreprises. Les valeurs et attitudes des dirigeants semblent certes intervenir dans le comportement de diversification des pme mais leur role doit etre relativise. L'objectif de croissance ne parait pas etre davantage l'apanage des pme qui se diversifient que celles qui sont plutot specialisees. L'absence de liaison significative entre la nature du controle, ramenee ici au clivage societes privees societes cooperatives et la diversification est egalement a noterFrom a proposition of a measure of the diversification adapted to the small enterprises and with informations obtained from 22 small enterprises of dairy industry, a typology of diversification behavior of these enterprises has been drawn and the determinants of these behaviors have been analysed. From this typology, it appears in particulary that the small enterprises, visited, oriente their diversification according to their evolution stage : firstly towards the national markets and internationale markets and after towards the technological competences, foundation of the product diversification. From the analyse of the determinants of these types of diversification behavior, it appears that the size can play a stimulative part and not inhibitive like it seems do it for the large enterprises. The values of the entrepreneurs seem effectively play a part in the diversification of the small enterprises but this must be relativisated. The objective of growth not seems to be more the attribute of the small enterprises that are diversified than those which are specialized. The lack of significative link between the nature of controle, reduced here to the opposition private society cooperative society, and the diversification must be also noted
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Lundgren, Joakim, und Oskar Heljeberg. „M-C-O or M-C...No? Multi-Club Ownership in English Football and Its Drivers“. Thesis, Umeå universitet, Företagsekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185176.
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Multi-club ownership [MCO] is a concept within the football industry which entails that an owner holds significant stakes in multiple teams. This ownership strategy is not new, however, what are the driving forces of this type of ownership structure and what are the outcomes? The purpose of this study was to explore potential drivers of MCO, to irradiate the concept and determine whether traditional business administration theories can be applied to explain its existence. The main theoretical framework is based upon the shareholder theory and resource-based view of the firm with supplementary reasoning collected from other relevant theories. The study encompasses five seasons and consisted of the teams competing in the top two divisions in the English Football League system. The quantitative study covered six hypotheses and deployed both Two sample t-tests and regression models which sought to measure international player trading activity, sporting performance and financial performance. The results of the study show that multi-club portfolio members [MCPMs] tend to trade a larger share of players internationally compared to Non-MCPMs. However, the other models yielded no significant results in regard to MCPMs, although, value creation through the strategy cannot be disregarded as it may be present through other channels. The wider footballing industry has been studied extensively in previous literature. However, this study is focused on MCO, a topic that lacks a previous body of research. By filling this research gap the authors hope to illuminate the concept and increase transparency for both decision makers (owners of clubs) and supporters of clubs. In addition, a survey which is not empirically tested was conducted in order to help guide the proceedings of the research.
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Briquet-Duhazé, Sophie. „Les performances en lecture dans les classes à cours multiples SE/C. P. ET S. E. /C. P. /C. E. 1“. Rouen, 1996. http://www.theses.fr/1996ROUEL239.
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Une étude statistique, réalisée auprès d'un échantillon de 905 élèves, montre que les résultats en lecture en fin de C. P. Sont supérieurs dans les classes S. E. C. P. Et S. E. C. P. C. E. 1 par rapport aux classes de C. P. à cours unique. Les classes S. E. C. P. Et S. E. C. P. C. E. 1 sont examinées, notamment le rôle de la section enfantine lors du passage maternelle C. P. Ainsi que les interactions entre élèves des différents niveauxA study based upon statistics made from the observation of a group of 905 pupils, shows that reading competences are superior in classes S. E. C. P. And S. E. C. P. C. E. 1 to those obtained in C. P. Classes with only one section. S. E. C. P and S. E. C. P. C. E. 1 classes are assayed and tested in this study, with an emphasis on the part played by kindergarden when young children leave the French ecole maternelle to acquire reading skills, in C. P. Without forgetting the various interactions between pupils of different degrees of proficiency
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Coleman, Cal. „M Y T H I C“. Digital Commons at Loyola Marymount University and Loyola Law School, 2021. https://digitalcommons.lmu.edu/etd/990.
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Mythic is an animated family series that will collide the worlds of the beloved Disney style musical feature, with everyday children’s programming. Based on 8 public domain works by Hans Christian Andersen, the series will follow Princess Viv, Farmhand Penelope, Pit-Pocket Leina, and a hopelessly romantic Prince Agner, as they travel through magical kingdoms in hopes of retrieving 8 mythical relics. Together, the four will learn about the meaning of love, the danger of greed, and the joy of being selfless as they fight to keep Leina from becoming a true villain.
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Santin, Mauro. „Plasmaproteinbindung der mGluR₅-Liganden [³H]-M-MPEP und [¹¹C]-M-FPEP“. Zürich : ETH, Eidgenössische Technische Hochschule Zürich, Dept. Angewandte Biowissenschaften, Institut für Pharmazeutische Wissenschaften, 2002. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=72.
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Alves, Frederico Samartini Queiroz. „Aproximação para sistemas de filas M/M/c com servidores heterogêneos“. Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/BUOS-8CEEFU.
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This work is specifically aplied to the case of C heterogenous servers, exponentially distributed, which assist a single FCFS line formed for just one type of customer class. A mathematical formulation is presented to obtain an upper bound for the performance measures. Basically, surch formulation is obtained through an expansion of the state space resulting from the heterogeneity of the severs and afterwards through a reduction of that state space. That reduction is feasible because only the possibilities of larger probality are considered. With that, it is possible to find the worst case for the average waiting time in queue and for the average number of people in the queue, as well as for the average waiting time in the system and the average number of people in the system. In most of the cases that formulation becomes attractive as it is capable to approximate the real behavior of those systems of heterogenous servers with an error that is smaller than if it was calculated using the traditional MMc. Results from simulations, which were run in GPSS, are showed with the intention of validating the created formulation and to compare the relative error resulted from it with the error from other approaches. The Gini's Index is used to make the comparison among systems possible as it makes viable the classification of the systems according to their heterogeneity. As a result of that it is possible to evaluate which is the resultant effect on the performance measures of those queueing systems, In addition, some analyses on the influence which different allocation polices have over the results are also presented.Este trabalho se aplica, especificamente, ao caso de C servidores heterogêneos, exponencialmente distribuidos e que atendam uma fila única, com disciplina de atendimento First Come, First Served, formada por apenas uma classe de cliente. É apresentada uma formulação matemática para se obter um limite superior para as medidas de desempenho. Tal formulação é obtida, basicamente, através de uma expansão do espaço de estados, resultante da heterogeneidade dos servidores, e, em, seguida, através de uma redução desse espaço de estados. Essa redução é viável, pois apenas as possibilidades de maior probabilidade foram consideradas. Com isso, é provavel encontrar o pior caso para o tempo médio de espera na fila e para o número médio de serviços na fila, como, também, para o tempo médio no sistema e o número médio de pessoas no sistema. Essa formulação se torna atraente por ser capaz de aproximar o comportamento real desses sistemas de servidores heterogêneos com um erro, na maioria dos casos, menor do que se fosse calculado utilizando a aproximação existente para uma MMc tradicional. Resultados de simulações, feitas em GPSS (General Purpose Simulation System), são apresentados com o intuito de validar s formulação criada e de comparar o erro relativo dela com o de outras aproximações. O índice de Gini é usado para facilitar a comparação entre sistemas, pois, através desse, é viável classificá-los quanto à heterogeneidade e, então, avaliar qual é o efeito resultante dessa sobre as medidas de desempenho de um sistema de filas qualquer. É apresentada, também, uma análise sobre a influência que alguns tipos de alocação têm sobre os resultados.
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Hall, Brendan. „Structure/Property relationships of P/M aluminium alloys /“. [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17974.pdf.
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Dollmeier, Klaus. „P/M Gradientenwerkstoffe im System Cu-Ni-Sn /“. [S.l.] : [s.n.], 1995. http://library.epfl.ch/theses/?nr=1402.
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Perrin, Daniel. „Courbes passant par m points généraux de P³“. Paris 11, 1986. http://www.theses.fr/1986PA112122.
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On étudie le problème suivant : étant donnés m points généraux de P3, trouver une courbe lisse et connexe passant par ces points et de degré le plus petit possible. Le problème se ramène essentiellement à l'étude du fibré normal des courbes de P3, en particulier à une propriété voisine de la stabilité : la hO-stabilité. On donne un critère pour obtenir cette condition et des applications utilisant les méthodes de liaison. Les résultats obtenus sont, le plus souvent, regroupés sous forme de tableauxGiven m general points of P3 , we try to find a curve of low degree containing these points. The problem involves the normal bundle of the curves in P3 , namely a condition which we call h0 –stability by analogy with ordinary stability. We give a criterion of h0 -stability and apply it by use of liaison techniques. Most of the results are collected in several tables
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Hazelden, Jeffrey B. „I s m i t p a I“. The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524139077065679.
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Perrin, Daniel. „Courbes passant par m points généraux de P³“. Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb376003602.
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Mouko, Félix. „L'impact de l'encadrement du crédit et les stratégies anti-encadrement des P. M. E P. M. I : cas de la Bretagne“. Rennes 1, 1985. http://www.theses.fr/1985REN1G027.
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ENNASR, ELHASSANE. „Essai d'analyse des fondements des forces et faiblesses specifiques aux p. M. E. Industrielles. Cas des p. M. E. I. Marocaines“. Caen, 1987. http://www.theses.fr/1987CAEN0503.
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Dans une appoche integrant quatre dimensions : psychologique, sociologique, structurelle et economique, nous avons essaye d'analyser les specificites des p. M. E. Industrielles ainsi que leurs implications sur le comportement de ces entreprises. La p. M. E. Se situant generalement dans un "espace tridimensionnel", en ce sens que son dirigeant est un agent economique a la fois : chef d'entreprise, salarie et proprietaire d'un patrimoine economique et financier, et membre d'une "coalition familiale", elle meme proprietaire et "acteur actif" dans l'entreprise, il se trouve confronte a des contraintes materielles, psychologiques et sociologiques qui determinent a grande echelle la nature de la rationalite ou de la logique dans laquelle s'inscrit son comportement. Ses interets personnels (et ou familiaux) pourraient ne pas coincider avec ceux de l'entreprise. D'ou des conflits eventuels entre les interets de l'entrepreneur et ceux propres a l'entreprise. Pour approcher notre problematique, nous sommes partis d'une analyse concernant les p. M. E. D'une maniere generale, pour nous interesser plus particulierement, dans le cadre de notre enquete, aux p. M. E. Marocaines. Ayant constate un grand impact des facteurs psychosociologiques sur l'efficacite des petites et moyennes entreprises, nous nous sommes interroges, dans cette etude, etant donne la faible contribution des p. M. E. Marocaines dans l'economie du pays, pour savoir dans quelle mesure les dimensions : psychologique et sociologique, pourraient entraver l'efficacite de ces entreprisesIn an approach integrating psycological, sociological, structural and economical dimensions, we have tried to analyse the specific features of small and medium industrial entreprises and also their implications in their behavior. In general a s. M. I. E. Is situated in a tridimensional space : the manager is an economical agent : the head, the paid and at the same time, the owner of the economical and financial patrimony. Besides that, he is also a member of a familial coalition which has the same right in the entreprise as the main owner and actif actor. Hence, he has to meat material, psychological and sociological difficulties which would affect the rational and the logic of his behavior in the entreprise. His personal (or family) interests would not always correspond to that of the entreprise, therefore, the eventual conflicts of the mutual interests. As a result, we have started studying the s. M. I. E. In general and then got interested in the maroccan s. M. I. E. For our proper inquiry. Having discovered a big impact of psychosociological factors upon the efficiency of small and medium entreprise, we are interested to demonstrate how psychological and sociological dimensions could affect the efficiency of this entreprise
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Bareilles, Francis. „Les céphalées chroniques induites par les médicaments (C. C. I. M. )“. Bordeaux 2, 1993. http://www.theses.fr/1993BOR2M038.
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Ditschar, Bernd. „C, P and water dynamics in Mycorrhiza“. Doctoral thesis, [S.l.] : [s.n.], 2005. http://webdoc.sub.gwdg.de/diss/2005/ditschar.
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Roucaute, Yves. „Le P. C. F face à l'état“. Paris 10, 1985. http://www.theses.fr/1985PA100232.
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Waller, Bradley A. „Properties of p-adic C^k Distributions“. The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1385485834.
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Pagès, Lucas. „Hydrofonctionnalisation d'allénamides terminaux par catalyse au cuivre : formation de liaisons C-C, C-S, C-P et C-O“. Electronic Thesis or Diss., Montpellier, Ecole nationale supérieure de chimie, 2022. http://www.theses.fr/2022ENCM0017.
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L'objectif de la thèse consiste à découvrir de nouveaux procédés économiques, non toxiques et non polluants pour réaliser la synthèse de molécules à haute valeur ajoutée (dans le domaine de la pharmacie et des matériaux), à partir de molécules de départ simple pouvant éventuellement être issues directement du monde végétal. Ces nouveaux procédés feront principalement appel à la catalyse homogène et à des catalyseurs métalliques peux coûteux et peu toxiques à base par exemple de cuivre (les méthodes que ces nouveaux procédés sont destinés à remplacer font en général appel à des catalyseurs très coûteux et très toxiques à base de palladium et de ligands sophistiqués). Les recherches reposeront sur l'expertise de l'équipe d'accueil dans le domaine l'hydrofonctionnalisation1 de liaisons insaturées (dont l'hydroamination) ainsi que dans celui de l'arylation de nucléophiles carbonés, oxygénés ou azotés,2 par catalyse au cuivre (formation de liaisons C-C et C-hétéroatome). Le projet comportera une partie méthodologie de synthèse ainsi qu'une partie d'étude mécanistique très poussée sur les systèmes catalytiques découverts (RMN, études cinétique, isolation de complexes métalliques intermédiaires, calculs DFT). L'application et le transfert vers le milieu industriel, domaine dans lequel l'équipe a une très grande expérience, seront alors ensuite envisagés et mis en œuvre s'il y a lieu. 1. a) Chem. Comm, 2015, 51, 11210. b) Org. Lett. 2015, 17, 1224. c) Org. Lett. 2016, 18, 1482. d) Adv. Sytnh. Cat., 2017, 349, 4388. e) ACS. Catal. 2017, 7, 425. f) Org. Lett. 2018, 20, 223. g) Synthesis, 2019, 51, 1225. 2. a) Angewandte Chemie, 2007, 46(6), 934. b) Angew. Chem. Int. Ed. 2009, 48, 337. c) Angew. Chem. Int. Ed. 2009, 48, 6954. d) Angew. Chem. Int. Ed. 2009, 48, 8725. d) Angew. Chem. Int. Ed. 2012, 51, 12815. e) Chem. Comm, 2013, 49, 7412. f) Angewandte Chemie, 2015, 54, 1058. g) Angewandte Chemie, 2016, 55, 3785One of the main objective of the thesis is to discover new economic, non-toxic and non-polluting processes for the synthesis of targets with high added value (in the field of pharmacy and materials), starting from simple starting molecules (possibly issues from the plant world). These new processes will mainly use homogeneous catalysis and inexpensive and low-cost metal catalysts based for example on copper (the methods that these new processes are intended to replace generally make use of very expensive and highly toxic palladium based catalysts and sophisticated ligands). The research will be based on the expertise of the host team in the field of hydrofunctionalization (ref 1) of unsaturated bonds (including hydroamination) as well as in the arylation of carbon, oxygenated or nitrogenous nucleophiles (ref 2) by copper catalysis (formation of C-C and C-heteroatom bonds). The project will include a synthesis methodology part as well as a very advanced mechanistic study of the discovered catalytic systems (NMR, kinetic studies, isolation of intermediate metal complexes, DFT calculations). Application and transfer to industry, where the team has a great deal of experience, will then be considered and implemented if necessary. 1. a) Chem. Comm, 2015, 51, 11210. b) Org. Lett. 2015, 17, 1224. c) Org. Lett. 2016, 18, 1482. d) Adv. Sytnh. Cat., 2017, 349, 4388. e) ACS. Catal. 2017, 7, 425. f) Org. Lett. 2018, 20, 223. g) Synthesis, 2019, 51, 1225. 2. a) Angewandte Chemie, 2007, 46(6), 934. b) Angew. Chem. Int. Ed. 2009, 48, 337. c) Angew. Chem. Int. Ed. 2009, 48, 6954. d) Angew. Chem. Int. Ed. 2009, 48, 8725. d) Angew. Chem. Int. Ed. 2012, 51, 12815. e) Chem. Comm, 2013, 49, 7412. f) Angewandte Chemie, 2015, 54, 1058. g) Angewandte Chemie, 2016, 55, 3785
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Miquet, Claude. „Le mercure allemand de C. M. Wieland“. Paris 4, 1988. http://www.theses.fr/1987PA040436.
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C. M. Wieland (1733-1813) a edite une revue, le mercure allemand (1773-1789) qui a joue dans son existence et dans la vie intellectuelle allemande un role important. L'analyse de son comportement dans sa fonction de directeur, dans ses relations avec ses collaborateurs et ses lecteurs, revele un aspect volontariste, voire autoritaire de son temperament. L'apport pietiste et, dans le sillage de spinoza, la reflexion sur le texte original de la bible forment l'une des composantes essentielles du groupe dont wieland est l'animateur. C'est de la que procedent des elements au premier abord aussi disparates que, par exemple, les condamnations energiques des aboutissements hedonistes et materialistes de l'aufklarung, la fureur a l'egard de formes jugees aberrantes de l'esoterisme religieux, un certain refus de choisir entre catholicisme et protestantisme institutionnels, ou encore une incontestable hardiesse dans l'evocation des problemes politiques et sociaux. Dans et par sa revue, wieland essaie ainsi de sauver le meilleur de l'aufklarung qu'il veut voir s'epanouir dans un classicisme dont il contribue avec ses collaborateurs, surtout goethe et schiller, a preciser l'esthetique. Compare a d'autres revues de la meme epoque, le mercure se distingue par une duree exceptionnellement longue, un contenu moins platement moralisateur, des ambitions pedagogiques plus coherentes vis-a-vis de l'allemagne tout entiere, un public plus largeC. M. Wieland (1733-1813) was the publisher of the german mercury (1773-1789), a review which played an important part in his own existence and in the intellectual life of germany. The analysis of his activities as publisher and his relationships with his co-workers and readers reveals a headstrong and even authoritarian aspect of his character. The pietistic contribution and, following in spinoza's wake, the reflection on the original text of the bible, together form one of the essential components of the group led by wieland. It is hence that proceed such apparently different elements as, for example, the energetic condemnations of the hedonistic and materialistic final outcome of the aufklarung, the outrage over forms of religious esoterism considered aberrant, a certain refusal to choose between institutional catholicism and protestantism, and also an undeniable boldness in the evocation of political and social problems. In and through his review, wieland thus tries to save the best of the aufklarung, which he hopes will blossom into a classicism whose esthetics he helps to define with his collaborators, goethe and schiller, in particular. In comparison with other reviews of the same period, the mercury is distinguished by an exceptionally long life, a content that is less tritely moralizing, more coherent paedagogical ambitions concerning germany as a whole, and a wider public
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Mahé, Sylvain. „Démarche et outil actif de Gestion des Connaissances pour les P. M. I. / P. M. E. : réutilisations et échanges de connaissances tacites“. Chambéry, 2000. http://www.theses.fr/2000CHAMS026.
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Rodrigues, Ana Mara Silva. „Manual de segurança de uma P. M. E. : Lamarserv“. Master's thesis, Escola Superior de Tecnologia do Instituto Politécnico de Setúbal, 2014. http://hdl.handle.net/10400.26/7248.
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Pós-Graduação em Segurança e Higiene no TrabalhoA Lamarserv, presta serviços especializados de manutenção e limpeza industrial, de acordo com as especificações e requisitos do Cliente Secil - Outão, garantindo a necessária confiança, flexibilidade e qualidade do Serviço, procurando exceder, sempre que possível, as suas expectativas. A empresa Lamarserv integra num conjunto de aproximadamente 30 empresas que constituem o Universo SECIL, opera atualmente na SECIL-Outão em Setúbal. Acompanha o ritmo de trabalho do seu cliente, a firma Secil-Companhia Geral de Cal e Cimentos, S.A., para o qual se encontra a prestar a sua atividade no âmbito de empreitadas cujo destino final da produção é a exportação. Não existem estruturas de representação coletiva dos trabalhadores, legalmente constituídas, nem é desenvolvida atividade sindical na empresa. Os trabalhadores estão abrangidos pelo regime de laboração contínua. A produção de cimento é o centro da atividade da SECIL, que integra atualmente mais duas fábricas no continente, uma na localidade de Pataias, onde se produz o cimento branco CIBRA, e outra em Maceira, também perto de Leiria, onde se produz o cimento LIZ. Tem ainda uma fábrica na Tunísia, participa noutra no Líbano e explora uma em Angola. Para entendermos o papel da empresa Lamarserv dentro do núcleo da SECIL, é importante termos em conta todos os patamares necessários para a produção de cimento que será descrita no presente projeto. É de ressalvar que o presente projeto serviu de guia orientador para a elaboração do manual de segurança da Lamarserv que incide fundamentalmente em aspetos práticos capazes de minimizar riscos e perigos na empresa em questão. A relevância de um manual desta natureza está ligada à falta de uma cultura interna de segurança, visto que a Lamarserv se limita a cumprir com os procedimentos de segurança da Secil Outão. As suas atividades nunca foram analisadas de forma detalhada nas questões de avaliação de risco e existe realmente a necessidade de desenvolver uma ferramenta útil de SHT.A Segurança no Trabalho é um tema vasto e complexo, pelo que, não é possível abordá-lo por completo no presente projeto. Por essa razão, foram selecionadas as áreas mais relevantes e adequadas à realização de tarefas na empresa Lamarserv, de forma a salvaguardar a segurança dos trabalhadores. Como tal, as áreas de Identificação dos Perigos e Avaliação de Riscos, Controlo de Riscos Profissionais, Higiene no Trabalho e Segurança no Trabalho foram escolhidas para o efeito. A metodologia para o presente projeto é baseado em entrevistas semiestruturadas, pesquisas bibliográficas, nomeadamente relativa a problemas ligados ao desenvolvimento de estudos empíricos, pesquisas bibliográficas acerca dos principais conceitos, análise documental e pesquisa bibliográfica relacionada com a revisão da literatura, bem como a legislação em vigor da temática apresentada. O projeto a desenvolver visa criar um Manual de Segurança e Higiene no Trabalho adaptado para a empresa Lamarserv. No presente relatório são apresentados alguns módulos que foram considerados importantes para o efeito e, em apêndice todo o manual. O relatório deste projeto integra seis pontos; num primeiro ponto, faz-se uma breve caracterização da organização. Num segundo pronto define-se a metodologia para a elaboração do projeto. Num terceiro ponto apresentam-se alguns conceitos no âmbito da Identificação dos Perigos e Avaliação de Riscos, sendo que no ponto seguinte se aborda a questão do Controlo de Riscos Profissionais. No ponto cinco, a temática é a Higiene no Trabalho e no ponto seis a Segurança no Trabalho.
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Dusevičius, Vidas. „Meno kūrinys ir religinė patirtis: M. Heideggeris, P. Florenskis“. Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20090908_194039-90469.
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Magistrinio darbo tema byloja apie estetikos ir religijos, o tiksliau – meno kūrinio ir religinės patirties, sankirtų taškus. Svarbiais, bent jau šio darbo kontekste, laikytume tam tikrus meno kūrinio sampratos kraštutinumus. Romantizme – estetika (atitinkamai ir meno kūrinys), tampa religijos pakaitalu. R. Šerpytytė rašo apie tokią romantinės sąmonės struktūrą, kuri anihiliuoja religiškumą. Romantizuojamas, pasaka tapęs pasaulis ,,aukščiausią prasmę“ pasiekia kaip tik anihiliuodamas religinę dimensiją ir jos vietoje iškeldamas, pakeisdamas ją estetine dimensija [...]. Tik meno kūrinys gali teikti apreiškimą. Tik sapne, tik svajonėse mes patiriame tiesą. Priešinga interpretacija – dvidešimtojo amžiaus neokantizmas. Meno kūrinys praranda bet kokias ontologines šaknis. Estetinė kokybė apibrėžiama negatyviai – kaip netekusi pažintinių bei praktinių nuorodų, ir kaip susijusi su tam tikra stebėtojo priimta išeities pozicija. Pasak G.Vattimo, taip suprasta estetinė sąmonė atitinka muziejų, kaip viešąją instituciją, kuri neatsitiktinai išsivystė pastaraisiais amžiais lygiagrečiai teoriniam estetinio subjektyvizmo subrendimui. Šiame kontekste ir užsimezga nagrinėjamos temos svarstymas – meno kūrinio ir religinės patirties ryšys.Compare the places of intersection of aesthetics and religion, work of art and religion experience. The most important thing is to stay within understanding of each piece of work. So in romanticism – aesthetics, work of art changes religion. However, we can deal with neokantizm of the twenties century, when ontologin origin does not exist in work of art. Aesthetical quality has negative meaning. In this work the connection of art work and religion experience has been researched. Comparison of understanding of work by Heidegger and Florensky. Leading the precondition, that work of art can be kind of frankness. Konception of Florensky is development of Heidegger work. The purpose is to find the answers: 1) Is ,,understanding” only the position of observation? 2) Is there anything unreached for interpretation in a work of art? Is art position opposing to subjectivism and can it liberate from subjective closeness.