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1

Moller, Faron. "Axioms for concurrency." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/11182.

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2

Burrows, A., M. S. Turner, and R. P. Brinkmann. "Axions and SN1987A." Steward Observatory, The University of Arizona (Tucson, Arizona), 1988. http://hdl.handle.net/10150/623885.

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We consider the effect of free -streaming axion emission on numerical models for the cooling of the newly born neutron star associated with SN1987A. We find that for an axion mass of greater than -10-3 eV, axion emission shortens the duration of the expected neutrino burst so significantly that it would be inconsistent with the neutrino observations made by the Kamiokande II (KII) and Irvine -Michigan- Brookhaven (IMB) detectors. However, we have not investigated the possibility that axion trapping (which should occur for masses 20.02 eV) sufficiently reduces axion emission so that axi
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3

Alvares, Jose Alfonso Ballestero. "Axios." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/27/27159/tde-22072009-182649/.

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Axios é a seqüência de xilogravuras produzidas em suporte de mdf com uma única goiva em V que pretende ampliar a reflexão a respeito do corpo humano como temática expressiva, incluindo imagens gravadas e a reflexão teórica a respeito desse processo e a criação do sentido, reconstruindo parte daquilo que o artista precisa dizer a si mesmo para iniciar a aventura de manifestações poéticas por intermédio do diálogo entre a gravura e o observante.<br>Axios is a sequence of xylographs produced on mdf support with only one V-form gouge; through which we mean to expand the reflection about the human
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4

Tsaprounis, Konstantinos. "Large cardinals and resurrection axioms." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/97038.

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In the current dissertation we work in set theory and we study both various large cardinal hierarchies and issues related to forcing axioms and generic absoluteness. The necessary preliminaries may be found, as it should be anticipated, in the first chapter. In Chapter 2, we study several C(n) - cardinals as introduced by J. Bagaria (cf. [1]). In the context of an elementary embedding associated with some fixed C(n) - cardinal, and under adequate assumptions, we derive consistency (upper) bounds for the large cardinal notion at hand; in particular, we deal with the C(n) - versions of talln
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5

Kovachev, Bogomil. "Some Axioms of Weak Determinacy." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-109320.

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6

Inamdar, Tanmay. "Measures, slaloms, and forcing axioms." Thesis, University of East Anglia, 2018. https://ueaeprints.uea.ac.uk/68402/.

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7

Daw, Edward John 1969. "A search for halo axions." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50335.

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8

Koellner, Peter 1969. "The search for new axioms." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/7989.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 2003.<br>Includes bibliographical references (p. 103-106).<br>Abstract The independence results in set theory invite the search for new and justified axioms. In Chapter 1 I set the stage by examining three approaches to justifying the axioms of standard set theory (stage theory, G6del's approach, and reflection principles) and argue that the approach via reflection principles is the most successful. In Chapter 2 I analyse the limitations of ZF and use this analysis to set up a mathematically precise mi
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9

Ward, Peter James. "Euclid's Elements, from Hilbert's Axioms." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354311965.

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10

Paulo, Gabriel Portela [UNESP]. "Análise extensométrica de cargas estáticas axiais e não axiais em próteses implantossuportadas de três elementos." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/97341.

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Made available in DSpace on 2014-06-11T19:28:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-06-30Bitstream added on 2014-06-13T18:58:10Z : No. of bitstreams: 1 paulo_gp_me_sjc.pdf: 472870 bytes, checksum: 69d75a192668783ad85d7d9f1982d8df (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A proposta desde estudo foi avaliar, in vitro, por meio da extensometria, a influência da aplicação de cargas axiais e não axiais em próteses parciais fixas de três elementos, suportadas por implantes. Para isso, foram inseridos na configuração linear, em um bloco de p
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11

Paulo, Gabriel Portela. "Análise extensométrica de cargas estáticas axiais e não axiais em próteses implantossuportadas de três elementos /." São José dos Campos : [s.n.], 2011. http://hdl.handle.net/11449/97341.

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Orientador: Renato S. Nishioka<br>Banca: Alexandre Luiz Souto Borges<br>Banca: Gelson Luis Adabo<br>Resumo: A proposta desde estudo foi avaliar, in vitro, por meio da extensometria, a influência da aplicação de cargas axiais e não axiais em próteses parciais fixas de três elementos, suportadas por implantes. Para isso, foram inseridos na configuração linear, em um bloco de poliuretano, três implantes com hexágono externo. Quatro extensômetros foram colados linearmente na superfície do bloco, tangentes aos implantes e perpendiculares ao seu longo eixo, com o intuito de mensurar a microdeformaçã
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12

Soares, Benedict J. "Polynomial generated polygons." Thesis, University of St Andrews, 1999. http://hdl.handle.net/10023/14198.

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A turtle geometric construction on the plane, called a polynomial generated polygon (PGP) and represented by Pf,pm, is generated from the sequence obtained from evaluating f(x) ∈ Z[x] over Z modulo pm where p is a prime and m ∈ N. Computational methods are developed to pre-calculate the symmetries exhibited by Pf,pm for a given f and pm. These include procedures to find whether Pf,pm is bounded or unbounded, the degree of rotational symmetry present, whether lines of reflectional symmetry can be observed, and in the case of Pf,pm unbounded, whether the PGP has a glide reflection. Methods are a
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13

Righi, Nicole. "Fuzzy dark matter from string axions." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18010/.

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In this thesis we study the viability for ultra-light axions coming from moduli stabilisation in the Large volume scenario to fit recent observations about the dark matter presence in several galaxies and clusters. After a historical introduction on the dark matter problem and a review of the candidates proposed as dark matter constituents through the years, in Chapter 1 we present WIMPs and ALPs, which are nowadays believed to be the most likely constituents. In Chapter 2 we give the theoretical basis to analyse these particles, that is Supersymmetry and String theory, focusing especially on
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14

Primavesi, Alexander. "Guessing axioms, invariance and Suslin trees." Thesis, University of East Anglia, 2011. https://ueaeprints.uea.ac.uk/38263/.

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In this thesis we investigate the properties of a group of axioms known as 'Guessing Axioms,' which extend the standard axiomatisation of set theory, ZFC. In particular, we focus on the axioms called 'diamond' and 'club,' and ask to what extent properties of the former hold of the latter. A question of 1. Juhasz, of whether club implies the existence of a Suslin tree, remains unanswered at the time of writing and motivates a large part of our in- vestigation into diamond and club. We give a positive partial answer to Juhasz's question by defining the principle Superclub and proving that it imp
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15

Thorgeirsson, Sverrir. "Hyperbolic geometry: history, models, and axioms." Thesis, Uppsala universitet, Algebra och geometri, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-227503.

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16

Chen, Liang. "Timed processes : models, axioms and decidability." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/409.

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This thesis presents and studies a timed computational model of parallelism, a Timed Calculus of Communicating Systems or Timed CCS for short. Timed CCS is an extension of Milner's CCS with time. We allow time to be discrete, such as the natural numbers, or dense, such as the non-negative rationals or the non-negative reals. We make no assumption of the Maximal Progress Principle, but the calculus is consistent with the principle. Time variables in the language allow us to express a notion of time dependency and the language is more expressive than those without time variables or infinite summ
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17

Colucci, Stefano [Verfasser]. "A dark matter quest through decaying axinos and vector-like portals / Stefano Colucci." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1185576169/34.

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18

Lopes, Fernando de Oliveira. "Modelo computacional para projeto de compressores axiais." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265338.

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Orientador: Jorge Isaias Llagostera Beltran<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-08T17:53:07Z (GMT). No. of bitstreams: 1 Lopes_FernandodeOliveira_M.pdf: 4254683 bytes, checksum: 3714a253c99b8967319409a00b69058a (MD5) Previous issue date: 2007<br>Resumo: Este trabalho apresenta o desenvolvimento de um programa computacional para modelagem inicial de compressores axiais de vários estágios pertencentes ao conjunto de turbinas a gás. O desenvolvimento do programa se baseia na metodologia adotada p
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19

Vieira, Leonardo Carpinetti 1987. "Análise de mancais axiais sob lubrificação hidrodinâmica." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264152.

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Orientador: Kátia Lucchesi Cavalca Dedini<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-17T14:52:53Z (GMT). No. of bitstreams: 1 Vieira_LeonardoCarpinetti_M.pdf: 3383681 bytes, checksum: 7b1d6a8f8eb035c38aaa391c784305bb (MD5) Previous issue date: 2011<br>Resumo: A geração de pressão no fluido lubrificante presente na folga entre um mancal axial e o colar do eixo em rotação é de fundamental importância para evitar contato entre partes sólidas com movimento relativo. Qualquer contato existente poderá causa
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20

Lück, Martin [Verfasser]. "Team logic : axioms, expressiveness, complexity / Martin Lück." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2020. http://d-nb.info/1205068341/34.

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21

Venturi, Giorgio. "Contributions towards the generalization of Forcing Axioms." Doctoral thesis, Scuola Normale Superiore, 2014. http://hdl.handle.net/11384/86135.

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22

Fu, Jinping. "Contribution of the canonical Wnt pathway in Tribolium anterior-posterior axis patterning." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/17397.

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Doctor of Philosophy<br>Department of Biology<br>Susan J. Brown<br>How animals polarize and establish the main axis during embryogenesis has been one of the most attractive questions in Biology. Increasing body of work in various model organisms implicates that most metazoans utilize the canonical Wnt signaling pathway to pattern the anterior-posterior (AP) axis, despite the limited evidence from arthropods. In Drosophila, a highly derived insect, canonical Wnt activity is not required for global AP patterning, but in typical insects including Tribolium castaneum, loss of canonical Wnt a
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23

Paychère, Cédric. "Conception d'entraînements électriques intégrés pour dispositifs multi-axiaux /." [S.l.] : [s.n.], 1997. http://library.epfl.ch/theses/?nr=1693.

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24

Cadamuro, Davide. "Cosmological limits on axions and axion-like particles." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-149191.

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25

Yu, D. B. (Daniel Byungyoon) 1976. "An improved RF cavity search for halo axions." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/29459.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.<br>Includes bibliographical references (leaves 165-167) and index.<br>The axion is a hypothetical elementary particle and cold dark matter candidate. In this RF cavity experiment, halo axions entering a resonant cavity immersed in a static magnetic field convert into microwave photons, with the resulting photons detected by a low-noise receiver. I present new limits on the axion-to-photon coupling and local axion dark matter halo mass density from a RF cavity axion search in the axion mass range 1.9-2.3 [mu]eV, bro
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Vieira, Leonardo Carpinetti 1987. "Análise de um modelo termohidrodinâmico para mancais axiais." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265847.

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Orientador: Kátia Lucchesi Cavalca Dedini<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-26T15:33:06Z (GMT). No. of bitstreams: 1 Vieira_LeonardoCarpinetti_D.pdf: 8387504 bytes, checksum: c4ddda686a98c9562fec4c86ff5f3a1c (MD5) Previous issue date: 2014<br>Resumo: Este trabalho possui como principal objetivo analisar a influência da variação da temperatura e, consequentemente, da viscosidade do fluido lubrificante sobre o comportamento de mancais axiais lubrificados de geometria fixa. Foi implementado numericame
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27

Mesquita, André Luiz Amarante. "Análise do desempenho de máquinas de fluxo axiais." Instituto Tecnológico de Aeronáutica, 1987. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1532.

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É analisado um critério de dimensionamento de máquinas de fluxo axiais subsônicas, baseado no coeficiente de pressão mínimo referente ao lado de sucção do perfil junto ao cubo do rotor, cpsmin, onde se faz sentir a influência dos diversos parâmentros geométricos envolvidos, como tipo de perfil, ângulo de montagem e solidez, nas características aerodinâmicas pretendidas. Utiliza-se um modelo potencial, formulado pelo método das singularidades, com ajustes posteriores através de dados experimentais existentes na literatura. São encontrados bons resultados de distribuição de pressão e coeficiente
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Filho, Nelson Manzanares. "Análise do escoamento em máquinas de fluxo axiais." Instituto Tecnológico de Aeronáutica, 1994. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1717.

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No presente trabalho, sao discutidos certos aspectos doescoamento em maquinas de fluxo axiais, com enfase no problema dedimensionamento. Na primeira parte, e feita uma analise simplificadados parametros otimos de funcionamento de um estagio rotor-estator. Introduz-se os conceitos de &quot;potenciais de perdas&quot; hidraulicas e pordifusao, cuja minimizacao indica tendencias de se obter faixasperdas hidraulicas e de pressao, respectivamente. Verifica-se que aminimizacao do potencial de perdas hidraulicas nem sempre conduz aestagios efetivos na producao de pressao estatica, o q
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29

Tribst, João Paulo Mendes [UNESP]. "Comportamento biomecânico de implantes retos e angulados sobre cargas axiais e não axiais por análise de elementos finitos e extensometria linear." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/148639.

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Submitted by JOÃO PAULO MENDES TRIBST (joao.tribst@fosjc.unesp.br) on 2017-01-26T19:06:37Z No. of bitstreams: 1 merged (3).pdf: 2530158 bytes, checksum: 8e235a2d5347c6969e7816c0f8e75e91 (MD5)<br>Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-01-30T19:35:24Z (GMT) No. of bitstreams: 1 tribst_jpm_me_sjc.pdf: 2530158 bytes, checksum: 8e235a2d5347c6969e7816c0f8e75e91 (MD5)<br>Made available in DSpace on 2017-01-30T19:35:24Z (GMT). No. of bitstreams: 1 tribst_jpm_me_sjc.pdf: 2530158 bytes, checksum: 8e235a2d5347c6969e7816c0f8e75e91 (MD5)
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Tribst, João Paulo Mendes. "Comportamento biomecânico de implantes retos e angulados sobre cargas axiais e não axiais por análise de elementos finitos e extensometria linear /." São José dos Campos, 2017. http://hdl.handle.net/11449/148639.

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Orientador: Renato Sussumu Nishioka<br>Banca: Alexandre Luiz Souto Borges<br>Banca: Francisley Ávila Souza<br>Resumo: Este trabalho buscou estudar as microdeformações geradas ao redor de implantes de hexágono externo durante carregamentos axiais e não axiais, variando-se a angulação dos implantes, utilizando a análise por elementos finitos e a extensometria linear como ferramentas. Inicialmente modelos 3D de diferentes próteses fixas foram construídos a fim de se permitir uma correlação dos resultados encontrados no modelo simplificado com o modelo anatômico e assim validar a geometria da prót
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Jaeger, Mitchell Smith Michel. "A study of regularity and normality." Auburn, Ala, 2009. http://hdl.handle.net/10415/1638.

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Wouters, Denis. "Recherche de nouveaux bosons légers en astronomie de haute énergie." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01065648.

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L'astronomie de haute énergie se concentre sur l'étude des phénomènes les plus violents de l'univers à partir d'observations dans une gamme d'énergie allant des rayons X aux rayons gammas de très hautes énergies (1 keV - 100 TeV). Ces phénomènes incluent par exemple les explosions de supernovae et leurs vestiges, les pulsars et les nébuleuses de vent de pulsar ou encore la formation de jets ultrarelativistes au niveau des noyaux actifs de galaxie. Leur compréhension fait appel à des processus de physique des particules bien connus qui seront décrits dans cette thèse. Par l'intermédiaire de pho
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Vasconcellos, Luis Gustavo Oliveira de [UNESP]. "Estudo in vitro das micro deformações ao redor de implantes suportes de próteses parciais fixas submetidos à cargas axiais e não axiais." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/106696.

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Made available in DSpace on 2014-06-11T19:35:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-11-30Bitstream added on 2014-06-13T18:47:19Z : No. of bitstreams: 1 vasconcellos_lgo_dr_sjc.pdf: 569269 bytes, checksum: e15d9d7dea5f86d35600300febaa1ad2 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo neste estudo foi avaliar in vitro, por meio da extensometria, a influência da aplicação de cargas axiais e não-axiais em próteses parciais fixas de 3 elementos implanto-suportadas, variando o posicionamento dos implantes e os pontos de aplicação de c
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Vasconcellos, Luis Gustavo Oliveira de. "Estudo in vitro das micro deformações ao redor de implantes suportes de próteses parciais fixas submetidos à cargas axiais e não axiais /." São José dos Campos : [s.n.], 2011. http://hdl.handle.net/11449/106696.

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Orientador: Renato Sussumu Nishioka<br>Banca: Guilherme de Siqueira Ferreira Anzaloni Saavedra<br>Banca: Ricardo Faria Ribeiro<br>Banca: Marcelo Ferraz Mesquita<br>Banca: Alberto Noriyuki Kojima<br>Resumo: O objetivo neste estudo foi avaliar in vitro, por meio da extensometria, a influência da aplicação de cargas axiais e não-axiais em próteses parciais fixas de 3 elementos implanto-suportadas, variando o posicionamento dos implantes e os pontos de aplicação de carga. Dois blocos de poliuretano receberam três implantes com conexão hexágono interno, no posicionamento linear e compensado. Em seg
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35

Pejlare, Johanna. "On Axioms and Images in the History of Mathematics." Doctoral thesis, Uppsala universitet, Matematiska institutionen, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8345.

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This dissertation deals with aspects of axiomatization, intuition and visualization in the history of mathematics. Particular focus is put on the end of the 19th century, before David Hilbert's (1862–1943) work on the axiomatization of Euclidean geometry. The thesis consists of three papers. In the first paper the Swedish mathematician Torsten Brodén (1857–1931) and his work on the foundations of Euclidean geometry from 1890 and 1912, is studied. A thorough analysis of his foundational work is made as well as an investigation into his general view on science and mathematics. Furthermore, his t
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Henkenjohann, Philipp [Verfasser], and Arthur [Akademischer Betreuer] Hebecker. "Quantum Gravity and Axions / Philipp Henkenjohann ; Betreuer: Arthur Hebecker." Heidelberg : Universitätsbibliothek Heidelberg, 2019. http://d-nb.info/1187740853/34.

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Bonnefoy, Quentin. "Topics beyond the Standard Model : axions, supersymmetry, string theory." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX034/document.

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Cette thèse a pour but l'étude de théories diverses, toutefois interconnectées, décrivant la nouvelle physique au-delà du modèle standard de la physique des particules. Ces sont des théories d'un nouveau type de particules, les axions, d'un nouveau principe de symétrie, la supersymétrie, et d'une nouvelle description des degrés de liberté fondamentaux, la théorie des cordes. Les progrès instrumentaux et théoriques constamment fait au fil des ans ont confirmé que ces théories sont des candidates privilégiées pour une description de la physique au-delà du modèle standard.Les axions sont d'abord
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Lindholm, Henrik. "Axis Mundi." Thesis, Konstfack, Inredningsarkitektur & Möbeldesign, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-3657.

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Axis Mundi - Ett examensarbete som undersöker om tvärvetenskap kan användas som alternativ process i skapandet av arkitektur. I arbetet formgavs en helig struktur efter den tvärvetenskapliga undersökningen, som sedan användes som en scenografi i en dansfilm.
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Picker, Zachary Shadrach Cohen. "The gravity of particle physics: dark matter, black holes, and axions." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29192.

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Perhaps chief among the mysteries of physics is the nature of dark matter (DM). In this thesis, I explore the physics of two DM candidates—primordial black holes (PBHs) and axions. Central to the thesis was the tension between gravity and particle physics, and the consequences that only arise when both are modelled. PBHs form in the early universe and so could be the DM. However, the Schwarzschild metric describes black holes in an empty background. In the early universe this is not applicable—the PBH solution must be cosmologically embedded. I explore the physics of cosmological black holes
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Spíndola, Flausino Lucas Neves. "Bifurcação de pontos axiumbílicos e ciclos axiais de superfícies imersas em R4." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/45/45132/tde-25012016-153923/.

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O objetivo deste trabalho é descrever a estrutura das linhas axiais principais e médias de imersões de superfícies em R4 na vizinhança de pontos axiumbílicos. Pontos axiumbílicos são aqueles nos quais a elipse de curvatura se degenera em um círculo. Estudamos a perturbação dos ciclos axiais principais, e obtemos resultados sobre a genericidade dos ciclos axiais principais hiperbólicos e semi-hiperbólicos.<br>The aim of this work is to describe the structure of principal and mean axial lines of immersions of surfaces into R4, close to axiumbilic points. Axiumbilic points are those which the ell
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Small, Michael. "Exploring the possibility of axino dark matter." Thesis, Lancaster University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414347.

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42

Santa, Cruz Coelho Danilo. "Understanding, Evaluating and Selecting Voting Rules Through Games and Axioms." Doctoral thesis, Universitat Autònoma de Barcelona, 2004. http://hdl.handle.net/10803/4056.

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La tesis de doctorado "Understanding, Evaluating and Selecting Voting Rules Through Games and Axioms" de Danilo Santa Cruz Coelho está compuesta de cuatro capítulos. La introducción es el primero y describe brevemente el contenido de los capítulos siguientes. En el Capítulo 2, en el contexto de un modelo de votación probabilística propuesto por Rae (1969), el autor investiga las consecuencias de elegir reglas de votación según el criterio de maximin. En el modelo, una regla de votación es el número mínimo de votantes favorables necesarios a una propuesta para que esta sea aceptada. El autor de
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43

Ferreira, Laércio [UNESP]. "Projeto e construção de uma bomba de pistões axiais swashplate." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/97124.

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Made available in DSpace on 2014-06-11T19:28:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-01Bitstream added on 2014-06-13T20:48:20Z : No. of bitstreams: 1 ferreira_l_me_guara.pdf: 2176881 bytes, checksum: 8f2778a638b354767b4b063574bf7559 (MD5)<br>Universidade Estadual Paulista (UNESP)<br>A bomba de pistões axiais tipo swashplate é uma máquina relativamente nova nas aplicações industriais. Uma pesquisa para se obter informações de funcionamento dessa máquina revelou que pouco existe na literatura especializada, a menos de um trabalho de tese de doutorado apresentado na UNESP em 1
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Santin, Marco Aurélio Bonilauri. "Simulação numérica de escoamento em turbinas axiais de alto desempenho." Instituto Tecnológico de Aeronáutica, 2006. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=266.

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Procurar uma turbina axial eficiente é evitar desperdício de energia, já que o aumento da eficiência dos componentes de uma turbina a gás refletem em uma máquina mais eficiente, que fornece trabalho com um menor custo de combustível. Com a dinâmica dos fluidos computacional é possivel obter informações quantitativas do desempenho da turbina axial pela simulação do escoamento entre suas pás. Permite também visualizar detalhadamente os pontos onde há separação, ondas de choque, gradientes elevados; fenômenos diretamente relacionados à geração de perdas. Este é o estudo da análise do desempenho d
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45

Ferreira, Laércio. "Projeto e construção de uma bomba de pistões axiais swashplate /." Guaratinguetá : [s.n.], 2004. http://hdl.handle.net/11449/97124.

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Orientador: João Zangrandi Filho<br>Banca: Fernando de Azevedo Silva<br>Banca: Messias Borges Silva<br>Resumo: A bomba de pistões axiais tipo swashplate é uma máquina relativamente nova nas aplicações industriais. Uma pesquisa para se obter informações de funcionamento dessa máquina revelou que pouco existe na literatura especializada, a menos de um trabalho de tese de doutorado apresentado na UNESP em 1993. Este trabalho desenvolve procedimento para o projeto de máquinas de pistões axiais e segue uma metodologia para se obter o desenho de conjunto, os detalhes, os ajustes e montagem desta máq
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46

Iordanoff, Ivan. "Paliers axiaux aérodynamiques à structure à feuilles : analyse et optimisation." Toulouse 3, 1996. http://www.theses.fr/1996TOU30002.

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Les paliers axiaux (ou butees) aerodynamiques permettent l'arret axial des arbres de turbomachines fonctionnant a des vitesses de rotation de dix mille a cent mille tours par minute. Ils sont formes de secteurs deformables creant un convergent avec le plan du disque rotor. Ce travail etudie le fonctionnement des butees lorsque le film d'air est forme. L'etude des parametres externes a souligne l'influence nefaste et preponderante du non-parallelisme des plans butee rotor sur les performances. Il a ete montre que la souplesse des secteurs attenue ce phenomene. L'etude de secteurs indeformables
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Bensaad, Djihed. "Diagnostic de fuites internes dans une pompe à pistons axiaux." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSES020.

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Le travail présenté dans ce mémoire traite le diagnostic des pompes à pistons axiaux. Dans ce contexte, nous proposons différentes méthodes capables de diagnostiquer les fuites internes dans une pompe à pistons axiaux, notamment celles provoquées par l'usure d'un ou plusieurs pistons. Nous commençons ce manuscrit par un rappel des notions fondamentales liées à l'hydrostatique et nous expliquons le fonctionnement des pompes à pistons axiaux. Ensuite, nous abordons la modélisation et la simulation du comportement dynamique de ce type de pompe. Cette étape permet de comprendre les variations des
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Buescher, Nathan P. "Live Axis Turning." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-12012005-170722/.

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The goal of this research is to develop a new method to create Non-Rotationally Symmetric (NRS) optical surfaces that overcomes the limitations of the current techniques and is fast, accurate and inexpensive. The term Live-Axis turning (LAT) has been coined to describe a lightweight, linear-motor driven, air bearing slide that can be used to fabricate NRS surfaces. The system described was developed at the Precision Engineering Center (PEC) in an effort to create a long-range fast tool servo to fabricate future NASA optics. The slide designed for the system is a triangular cross-section, light
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Hansen, Gary Alan. "Hub and Axis." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33239.

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The project is for the central building of a community center used by the communities of Blacksburg and Christiansburg. The building is a space configured as a hub that uses axes to determine entering, exiting and vertical movement. The hub configuration of the building is in concentric rings around the atrium in both space and materials. As materials were brought into the building, they enhanced the strong axial configuration and emphasized the layers surrounding the central hub space of the atrium. There are two pairs of axes in the building. The entrance axes are perpendicular to the f
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Collignon, Adam. "Z Axis Follies." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3887.

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This document will outline the nature of performance / object interaction, and the role of documentation in this interaction. In addition, I will explore the body / object as a site of multiplicities, the quality of simultaneity in appearance and apprehension of such multiplicities, and traverse the triumphs and travails of the body / object’s journey from one state of being to the next.
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