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Dissertations / Theses on the topic 'Simple fractures'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Urbain-Dupont, Corinne, and Frédéric Dupont. "Résultats de la résection simple et de l'arthroplastie des fractures de la tête radiale : à propos de 52 cas." Lille 2, 1989. http://www.theses.fr/1989LIL2M120.

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2

Lam, Minh-Phuong. "Modélisation 3D du transport particulaire asynchrone en simple et double continuum matrice-fractures : application au stockage de déchets nucléaires." Phd thesis, Toulouse, INPT, 2008. http://oatao.univ-toulouse.fr/7738/1/lam.pdf.

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Ce mémoire présente les travaux réalisés dans le cadre d'une thèse CIFRE en collaboration avec le Laboratoire National d'Hydraulique et Environnement (LNHE) d'EDF R et D et l'Institut de Mécanique des Fluides de Toulouse (IMFT). La thèse a pour objectif in fine de fournir au LNHE un outil numérique précis lui permettant d'étudier la fiabilité d'un stockage de déchets nucléaires en milieu géologique profond. Les travaux réalisés portent plus particulièrement sur le développement et l'implémentation d'une méthode de suivi de particules par marche aléatoire pour modéliser le phénomène de transpor

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3

Lam, Minh-Phuong Ababou Rachid. "Modélisation 3D du transport particulaire asynchrone en simple et double continuum matrice-fractures application au stockage de déchets nucléaires /." Toulouse : INP Toulouse, 2008. http://ethesis.inp-toulouse.fr/archive/00000684.

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4

Neto, Gonçalo José Cabral. "Influência do tipo de fractura nos níveis séricos de cálcio ionizado em canídeos." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2014. http://hdl.handle.net/10400.5/7507.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>A ortopedia representa, actualmente, cerca de 10% dos casos avaliados em clínica de animais de companhia, sendo os canídeos a espécie mais representativa na ocorrência de processos traumáticos. O esqueleto, composto pelos ossos que são um importante reservatório de minerais em particular de cálcio e de fósforo, é uma estrutura altamente dinâmica cuja actividade resultante da acção de factores intrínsecos e extrínsecos é regulada por vários mecanismos endócrinos ao longo de toda a vida do indivíduo. A grande maioria do ião cálci

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5

Cai, Yangjun. "Simple Alternative Patterning Techniques for Selective Protein Adsorption." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1257386752.

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6

Ratsimba, Christian H. H. "Fatigue crack growth of filled elastomers." Thesis, Queen Mary, University of London, 2000. http://qmro.qmul.ac.uk/xmlui/handle/123456789/26243.

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In the past, the use of a fracture mechanics approach to describe crack growth in elastomers has been shown to work well for specimens of simple test geometry, simply loaded. This has been the case because elastic strain energy density (e.s.e.d.) functions could reliably be used to calculate both the magnitude of elastic stored energy available to drive a crack and the magnitude of the rate of release of such energy as the crack grows. The aim of this thesis was to investigate the applicability of such a methodology to situations of more complex loading. To this end two novel test-piece geomet

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7

Orassi, Vincenzo. "Finite element study of fractured mandible in human and sheep." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17819/.

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Osteosynthesis is one of the most discussed and investigated subjects in the orthopaedic literature. Mandible fractures are reported as one of the main causes of facial injury and their impact on patient life may bring serious consequences, compromising masticatory function, speech and facial aesthetics. Current treatments for mandibular simple fractures include the use of load-sharing devices such as titanium miniplates and screws, which have the role of fixing the fracture ends and restore the facial continuity. Fixation systems ultimately aim to generate the optimum mechanical strains wit

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8

Lens, Luciani Neves. "Modelos para análise de fratura do concreto simples empregando interfaces coesivas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/17645.

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O concreto é um material de comportamento quase-frágil na ruptura, desenvolvendo uma zona de processo de fratura relativamente grande na ponta de uma fissura principal, na qual ocorrem fenômenos complexos. Modelos de fratura discretos são adequados para estudar tais fenômenos. Neste contexto, o presente trabalho estuda diferentes modelos de fratura discreta em concreto simples, em situação de modo I puro e modo misto (modo I e modo II, simultaneamente) empregando dois modelos constitutivos da zona coesiva, um acoplado e outro desacoplado. Considerando que a malha de elementos finitos não é ada

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9

Günther, Wood Matías. "Estudio comparativo de las complicaciones postoperatorias en el tratamiento de las fracturas simples de ángulo mandibular con placas de osteosíntesis utilizando 2 diferentes técnicas en el Servicio de Cirugía y Traumatología Maxilofacial del Instituto Traumatológico Teodoro Gebauer Weisser." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/131346.

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Trabajo de Investigación Requisito para optar al Título de Cirujano Dentista<br>Autor no autoriza el acceso a texto completo de su documento<br>La manera en la cual las fracturas mandibulares son tratadas y reparadas ha sufrido una evolución gradual. A través de los años han aparecido diversas técnicas para la reparación de fracturas mandibulares. Los métodos abarcan desde el bloqueo intermaxilar (BIM) hasta combinaciones de BIM con alambres, tornillos tirafondo (lag screw) y placas de fijación rígida interna y elementos de fijación rígida externa (tutores externos). Hoy en día los sis

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10

Angelini, Alessandro Janson. "Tratamento das fraturas com traço simples da diafise do femur, com tecnica minimamente invasiva e placa em onda." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312286.

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Orientador: William Dias Belangero<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-08T02:22:20Z (GMT). No. of bitstreams: 1 Angelini_AlessandroJanson_D.pdf: 8473233 bytes, checksum: 3996290e908ef6f361b3a4bf25baf1d9 (MD5) Previous issue date: 2006<br>Resumo: A partir de resultados de estudos mecânicos com a placa em onda, demonstrando sua maior rigidez em montagens com algum tipo de contato cortical, surge este estudo com o objetivo de analisar o desempenho desse tipo de placa no tratamento das fraturas de traço sim

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11

Alvarado, Zegarra Aníbal. "Fracturas diafisiarias de fémur trazo simple, en niños de 6 a 12 años manejadas con clavos Rush; en el Hospital Nacional Daniel Alcides Carrión." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/14283.

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Por muchos años el tratamiento de las fracturas diafisiarias de fémur en niños de 6 a 12 años fue muy variado, actualmente el tratamiento de elección lo constituye una adecuada reducción y buena inmovilización con clavos endomedulares flexibles; por las ventajas y pocas complicaciones frente a los métodos tradicionales. Se revisaron las Historias Clínicas de 14 niños, entre los 6 y 12 años que ingresaron al Hospital Daniel Alcides Carrión entre julio del 2004 a diciembre del 2005 con diagnóstico de fractura diafisiaria de fémur trazo simple, cuyos padres aceptaron el tratamiento quirúrg

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12

Rosa, Cláudia Mesquita da. "Um modelo macro - mesoscópico para a simulação de fratura em concreto simples." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/35613.

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Com a finalidade de estudar processos de fratura em concreto simples, este trabalho propõe uma escala intermediária de análise. Sendo assim, é apresentado um modelo simplificado de duas fases, o qual representa alguns elementos da microestrutra do concreto. Uma fase representa os agregados e a outra a matriz de cimento. Os agregados são considerados elástico-lineares e são representados pelos elementos finitos. Toda a não-linearidade do concreto e do processo de fratura é considerada na matriz de cimento. Tal fase é representada por interfaces coesivas, de espessura zero, entre os elementos fi

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13

Kushnir, Alexandra Roma Larisa. "Permeability development and evolution in volcanic systems : insights from nature and laboratory experiments." Thesis, Orléans, 2016. http://www.theses.fr/2016ORLE2006/document.

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La transition entre le comportement effusif et explosif des volcans de magma riche en silice est en partie contrôlée par la capacité des surpressions gazeuses à se dissiper hors du magma. La libération efficace des gaz est associée aux éruptions effusives tandis que la rétention de ces gaz contribue aux processus explosifs. L’une des approches pour évaluer la facilité d’échappement des gaz est de considérer l’évolution et le développement de la perméabilité dans la colonne magmatique et dans l'édifice. J'évalue dans ce travail de thèse le rôle des changements post-mise en place sur la microstr

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14

Guo, Shu. "Experimental and Numerical Investigations on the Durability and Fracture Mechanics of the Bonded Systems for Microelectronics Application." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/28743.

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Water-assisted crack growth at an epoxy/glass interface was measured as a function of applied strain energy release rate, G, and temperature using a wedge test geometry. The specimens consist of two glass plates bonded with a thin layer of proprietary epoxy adhesive. The crack fronts along the epoxy/glass interfaces were measured using an optical stereomicroscope. The relationship between G and the debonding rate, v, can be measured using this method, and the threshold value of strain energy release rate, Gth, can be determined from the measured data. Two types of testing procedures were co

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15

Destrebecq, Jean-François. "Modele d'endommagement d'elements de structures en beton soumis a des sollicitations de fatigue." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF21070.

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A partir d'une etude bibliographique, elaboration d'un modele de comportement a la fatigue, base sur la theorie de l'endommagement, pour chacun des materiaux constitutifs du beton arme. Resolution numerique apres discretisation des equations d'equilibre une section de poudre fissuree endommagee, equations ramenees a celles d'une section fictive elastique homogene. Sous forme adimensionnelle, le modele permet d'obtenir les courbes s-n de sections flechies ne dependant que du pourcentage d'armatures dans la section: influence de ce pourcentage

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16

Chambon, Guillaume. "Caractérisation expérimentale du frottement effectif des zones de faille." Phd thesis, Université Paris Sud - Paris XI, 2003. http://tel.archives-ouvertes.fr/tel-00006613.

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Nous présentons une série de résultats expérimentaux visant à modéliser le comportement mécanique d'une zone de faille. Nous avons utilisé un appareil de cisaillement simple annulaire permettant d'appliquer des cisaillements plurimétriques à des échantillons épais de gouge granulaire (sable de quartz). Nos résultats mettent en évidence un nouveau processus spectaculaire d'adoucissement en glissement: le coefficient de frottement effectif de la gouge décroît de 70% sur des distances caractéristiques décimétriques. La diminution progressive du frottement avec le glissement est bien représentée p

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17

Song, Dong Hee. "Using simple models to describe oil production from unconventional reservoirs." Thesis, 2014. http://hdl.handle.net/2152/25231.

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Shale oil (tight oil) is oil trapped in low permeability shale or sandstone. Shale oil is a resource with great potential as it is heavily supplementing oil production in the United States (U.S. Energy Information Administration, 2013). The shale rock must be stimulated using hydraulic fracturing before the production of shale oil. When the hydrocarbons are produced from fractured systems, the resulting flow is influenced by the fracture, the stimulated rock, and the matrix rock. The production decline rates from shale oil reservoirs experience flow regimes starting with fracture linear flow

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18

Amani, Andabili Yasha. "Possible Role of Osteoblasts in Regulating the Initiation of Endochondral Repair Process during Fracture Healing." Thesis, 2012. http://hdl.handle.net/1807/32224.

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Fracture repair is a regenerative event that involves the precise coordination of a variety of cells for successful healing process. Within the microstructure hierarchy of bone repair, the predominant cells involved include the chondrocytes, osteocytes, osteoblasts, and osteoclasts. Although the role of osteoblasts during fracture healing has been previously shown, their role during the initiation phase of endochondral fracture repair remains unclear. In order to study the role of osteoblasts during fracture repair, we used a transgenic mouse model expressing the herpes simplex virus thymidine

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19

Lu, Chia Yu. "Contribution à l'étude de la déformation de la paléomarge téthysienne dans les Alpes occidentales. Analyses tectoniques et microtectoniques dans la zone des brèches de Tarentaise ( région de Moutiers) et dans les schistes lustrés du Mont Jovet . Alpes françaises." Phd thesis, 1985. http://tel.archives-ouvertes.fr/tel-00547430.

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Ce travail intéresse la zone des Brèches de Tarentaise, ainsi que la klippe des Schistes lustrés du Mont Jovet, dans la région de Moûtiers (Alpes occidentales françaises du Nord). Il repose sur l'utilisation simultanée de trois méthodes d'étude: l'analyse géométrique des structures,l'analyse quantitative de la déformation et la modélisation expérimentale. 1- analyse géométrique des structures A l'échelle de la carte géologique à 1/25.000, on montre que: - d'une part la"zone des Brèches de Tarentaise", dans la région de Moûtiers, appartient à un couloir de fracturation, tardif par rapport aux s

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20

Santos, João Carlos Miquelão. "Caracterização numérica de um fixador externo para fraturas da tíbia." Master's thesis, 2016. http://hdl.handle.net/10316/37063.

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Dissertação de Mestrado em Engenharia Mecânica na Especialidade de Produção e Projeto, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.<br>O objetivo do presente trabalho passou pela caracterização numérica de um fixador externo para fraturas da tíbia. Para isso, efetuou-se um estudo numérico do modelo Simple Fix, que se pretendia caracterizar, e o seu desempenho foi comparado com um modelo numérico de um fixador de referência, o modelo AO Tubular. Foi feito, também, um estudo de influência da pré-carga dos parafusos do modelo Simple Fix. O estudo do fixador foi fe

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