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Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 28 stycznia 2023

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1

Lima, Mariana dos Reis. "Effect of calendula officinalis in rats submitted to experimental periodontitis: participation of RANK-RANKL-OPG and WNT / Β-CATENIN PATHWAYS." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=18394.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Periodontitis is an infecto-inflammatory disease that leads to connective tissue and alveolar bone loss. Calendula officinalis (CLO) has been used due to its anti-inflammatory effects. Therefore the aim of this study was to evaluate the effect of CLO on alveolar bone loss (ABL) in rats focusing on RANK-RANKL-OPG and WNT signaling pathways. Experimental periodontitis (EP) was induced through placement of a nylon ligature around the upper left 2nd molar, and the hemimaxilla used as control. The animals were divided in grou

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Valente, Fabrício Luciani. "Histomorfometria e expressão imunoistoquímica de RANKL em fêmur e vértebra de ratos com osteoporose secundária." Universidade Federal de Viçosa, 2007. http://locus.ufv.br/handle/123456789/4972.

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Made available in DSpace on 2015-03-26T13:46:39Z (GMT). No. of bitstreams: 1 texto completo.pdf: 3315832 bytes, checksum: 7804372ccab471d7e6ac34ca69be57c9 (MD5) Previous issue date: 2007-03-20<br>Osteoporosis is a common human disease affecting both men and women, and it can classified as (1) primary, related to sexual hormones deficiency or senility, or (2) secondary, for what the most common example is the chronic therapies with glucocorticoids. Whatever is its cause, the osteoporosis outcomes are bone loss and increased fracture risk. Although osteoporosis is considered a systemic conditi

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Manfrin, Thais Mara [UNESP]. "Imunomarcação das proteínas OPG, RANK e RANKL em dentes reimplantados de rato." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/101206.

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Made available in DSpace on 2014-06-11T19:31:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-12-10Bitstream added on 2014-06-13T19:01:31Z : No. of bitstreams: 1 manfrin_tm_dr_araca.pdf: 3862156 bytes, checksum: dd6ccb05bd3012f8f38552fa7c669deb (MD5)<br>O sistema OPG, RANK e RANKL é uma das mais importantes descobertas da biologia óssea. Essas proteínas regulam as atividades celulares na remodelação do tecido ósseo e na literatura há diversas investigações nos tecidos dentários. No entanto, no reimplante dentário, ainda não foram encontrados relatos. Foi objetivo deste trabalho, ava

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Manfrin, Thais Mara. "Imunomarcação das proteínas OPG, RANK e RANKL em dentes reimplantados de rato /." Araçatuba : [s.n.], 2007. http://hdl.handle.net/11449/101206.

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Resumo: O sistema OPG, RANK e RANKL é uma das mais importantes descobertas da biologia óssea. Essas proteínas regulam as atividades celulares na remodelação do tecido ósseo e na literatura há diversas investigações nos tecidos dentários. No entanto, no reimplante dentário, ainda não foram encontrados relatos. Foi objetivo deste trabalho, avaliar a imunomarcação das proteínas OPG, RANK e RANKL em dentes reimplantados de rato. Um grupo controle foi formado com quatro ratos no qual o reimplante dentário não foi realizado. Vinte e quatro ratos (Rattus norvegicus, albinus) tiveram seu incisivo supe

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Amorim, Fernanda Penna Lima Guedes de. "Expressão do receptor ativador de NF-kBETA (Rank), Rank ligante (RANKL), e Osteoproterina (OPG) em sítios de reparo ósseo de ratos diabéticos." reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/1847.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Medicina, 2007.<br>Submitted by Priscilla Brito Oliveira (priscilla.b.oliveira@gmail.com) on 2009-10-02T19:50:55Z No. of bitstreams: 1 Tese_Fernanda Penna.pdf: 27353851 bytes, checksum: bbf1994ee5120417f554eacd85b1fef4 (MD5)<br>Approved for entry into archive by Tania Milca Carvalho Malheiros(tania@bce.unb.br) on 2009-10-05T13:19:15Z (GMT) No. of bitstreams: 1 Tese_Fernanda Penna.pdf: 27353851 bytes, checksum: bbf1994ee5120417f554eacd85b1fef4 (MD5)<br>Made available in DSpace on 2009-10-05T13:19:15Z (GMT). No. of bitstreams: 1

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Coutinho, Carolina Chiantelli Cláudio [UNESP]. "Expressão das proteínas osteoprotegerina, RANK e RANKL durante o processo de reparo alveolar em ratos: estudo imunoistoquímico." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/88947.

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Made available in DSpace on 2014-06-11T19:23:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-12-19Bitstream added on 2014-06-13T18:19:49Z : No. of bitstreams: 1 coutinho_ccc_me_araca.pdf: 114919 bytes, checksum: 49f558e8cba145ffdabb2e45dc62ada3 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Na dinâmica da reparação óssea os fenômenos de reabsorção e neoformação são dependentes e acoplados. Proteínas efetivamente envolvidas na diferenciação celular determinam ativação ou inibição das atividades que regulam o ganho ou perda de massa óssea. Dentre as proteín

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7

Coutinho, Carolina Chiantelli Cláudio. "Expressão das proteínas osteoprotegerina, RANK e RANKL durante o processo de reparo alveolar em ratos : estudo imunoistoquímico /." Araçatuba, 2005. http://hdl.handle.net/11449/88947.

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Resumo: Na dinâmica da reparação óssea os fenômenos de reabsorção e neoformação são dependentes e acoplados. Proteínas efetivamente envolvidas na diferenciação celular determinam ativação ou inibição das atividades que regulam o ganho ou perda de massa óssea. Dentre as proteínas ósseas identificadas e envolvidas na dinâmica óssea podemos destacar a OPG, a RANK e RANKL como marcadores de atividades celulares. O presente trabalho tem como objetivo identificar, nos diferentes períodos da cronologia do processo de reparo alveolar através de técnica imunoistoquímica, a presença das proteínas OPG, R

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8

Maia, Concei??o Aparecida Dornelas Monteiro. "An?lise imuno-histoqu?mica das prote?nas RANK, RANKL e OPG em dentes de ratos reimplantados." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19980.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-01T21:57:42Z No. of bitstreams: 1 ConceicaoAparecidaDornelasMonteiroMaia_TESE.pdf: 4715408 bytes, checksum: ce943e481eedb60a4a5cb2e44f04c0f6 (MD5)<br>Approved for entry into archive by Elisangela Moura (lilaalves@gmail.com) on 2016-03-07T23:10:59Z (GMT) No. of bitstreams: 1 ConceicaoAparecidaDornelasMonteiroMaia_TESE.pdf: 4715408 bytes, checksum: ce943e481eedb60a4a5cb2e44f04c0f6 (MD5)<br>Made available in DSpace on 2016-03-07T23:10:59Z (GMT). No. of bitstreams: 1 ConceicaoAparecidaDornelasMonteiroMaia_TESE.pdf: 4715408 byte

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9

Mycio-Mommers, Luba. "An investigation of the robustness of the Type I error rate of the t, M-W-W, Welch and Welch on ranks tests applied to reaction time populations with unequal variances." Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/10419.

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This thesis investigates the robustness of the Type I error rate of the t test, the t test on ranks (Mann-Whitney-Wilcoxon), the Welch test and the Welch test on ranks applied to reaction time populations with unequal variances. Reaction time is often encountered as a dependent variable in educational and behavioural research. Reaction time data are typically skewed and are commonly modelled on a family of distributions known as the ex-Gaussian. A Monte Carlo study compared the robustness of type I error rates of the four tests under study under 36 conditions wherein four factors were observed

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10

Barkov, Ilia. "Diagonal Ranks of Semigroups." Thesis, Linnéuniversitetet, Institutionen för matematik (MA), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-31383.

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We introduce the notion of diagonal ranks of semigroups,which are numerical characteristics of semigroups. Some base propertiesof diagonal ranks are obtained. A new criterion for a monoidbeing a group is obtained using diagonal ranks.For some semigroup classes we investigate whether their diagonal acts are finitely generatedor not. For the semigroups of full transformations, partial transformations andbinary relations we find the general form of the generating pairs.

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11

Summerhayes, Catherine, and catherine summerhayes@anu edu au. "Film as Cultural Performance." The Australian National University. School of Art, 2002. http://thesis.anu.edu.au./public/adt-ANU20090210.095136.

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This thesis investigates how Victor Turners concept of cultural performance can be used to explore and analyse the experience of film. Drawing on performance theory, hermeneutics, phenomenology and Bakhtins dialogism, Sections One and Two develop this investigation through a theoretic discussion which relates and yet distinguishes between three levels of performance in film: filmmaking performance, performances as text and cultural performances. The theory is grounded within four films which were researched for this thesis: Once Were Warriors (Lee Tamahori, 1994), Rats in the Ranks (Bob

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12

Mankada, Covilakom Mithun Varma. "RANS AND HYBRID RANS/LES COMPUTATIONS FOR THREE-DIMENSIONAL WINGS WITH ICE ACCRETION." MSSTATE, 2006. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11092006-232711/.

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Computational investigations were carried out to evaluate the effectiveness and usability of hybrid RANS/LES techniques for predicting the unsteady separated flow over wings with ice accretion. RANS and hybrid RANS/LES computations were performed using the viscous flow solver CHEM with the SST turbulence model. Two configurations were considered during the study: an extruded wing with a glaze-ice shape and a swept wing with a simulated glaze-ice accretion. Hybrid RANS/LES results, in general, predict a less active shear layer ``roll up' than seen in the experimental data. Qualitative improveme

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13

Lima, Mariana dos Reis. "Efeito da calendula officinalis em ratos submetidos a periodontite experimental: participação das vias RANK-RANKL-OPG e WNT B-CATENINA." reponame:Repositório Institucional da UFC, 2016. http://www.repositorio.ufc.br/handle/riufc/21662.

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LIMA, M. R. Efeito da calendula officinalis em ratos submetidos a periodontite experimental: participação das vias RANK-RANKL-OPG e WNT B-CATENINA. 2016. 66 f. Dissertação (Mestrado em Ciências Morfofuncionais) - Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, 2016.<br>Submitted by Erika Fernandes (erikaleitefernandes@gmail.com) on 2017-01-20T16:06:05Z No. of bitstreams: 1 2016_dis_mrlima.pdf: 2579356 bytes, checksum: 5976091267e9fb5683cbc5c4fc27cee2 (MD5)<br>Approved for entry into archive by Erika Fernandes (erikaleitefernandes@gmail.com) on 2017-01-20T16:06:13Z (GMT) No.

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14

Acar, B. Serpil. "Statistical data analysis by using ranks." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/32010.

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Fiallos, Ana Cristina de Mello. "Estudo do ranelato de estrÃncio no reparo Ãsseo de defeitos crÃticos em calvÃria de ratos: participaÃÃo da via RANK/RANKL/OPG." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9577.

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O reparo Ãsseo Ã um processo multifuncional com a participaÃÃo de vÃrios mediadores. Dentre os fÃrmacos que interferem nesse processo, destaca-se o Ranelato de EstrÃncio (RSr), o qual apresenta um mecanismo de aÃÃo dual, estimulando a neoformaÃÃo ao mesmo tempo que inibe a reabsorÃÃo Ãssea. Para avaliar a capacidade osteoindutiva, modelos que favorecem o estudo do potencial de reparo Ãsseo local tÃm sido utilizados, tais como o de induÃÃo de defeitos de tamanhos crÃticos (CSD) em calvÃrias de ratos. O objetivo deste estudo foi avaliar o RSr no reparo Ãsseo de defeitos crÃticos de 8 mm de diÃme

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Fiallos, Ana Cristina de Mello. "Estudo do ranelato de estrôncio no reparo ósseo de defeitos críticos em calvária de ratos : participação da via RANK/RANKL/OPG." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/6873.

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FIALLOS, Ana Cristina de Mello. Estudo do ranelato de estrôncio no reparo ósseo de defeitos críticos em calvária de ratos : participação da via RANK/RANKL/OPG. 2013. 106 f. Tese (Doutorado em Odontologia) - Universidade Federal do Ceará. Faculdade de Farmácia, Odontologia e Enfermagem, Fortaleza, 2013.<br>Submitted by denise santos (denise.santos@ufc.br) on 2013-11-28T13:08:54Z No. of bitstreams: 1 2013_tese_acmfiallos.pdf: 4903363 bytes, checksum: 272c8345b679c207b1a71676236e573b (MD5)<br>Approved for entry into archive by denise santos(denise.santos@ufc.br) on 2013-11-28T13:09:48Z (GMT) No.

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Kudo, Jun S. M. Massachusetts Institute of Technology. "Robust adaptive high-order RANS methods." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95563.

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Thesis: S.M., Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 89-94).<br>The ability to achieve accurate predictions of turbulent flow over arbitrarily complex geometries proves critical in the advancement of aerospace design. However, quantitatively accurate results from modern Computational Fluid Dynamics (CFD) tools are often accompanied by intractably high computational expenses and are significantly hindered by the lack of automation. In particular, the gene

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Clark, David Alan. "L-series and ranks of elliptic curves." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61910.

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Sitanggang, Khairil Irfan. "Boussinesq-equation and rans hybrid wave model." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2795.

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Aubagnac-Karkar, Damien. "Sectional soot modeling for Diesel RANS simulations." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2014. http://www.theses.fr/2014ECAP0061/document.

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Les particules de suies issues de moteur Diesel constituent un enjeu de santé publique et sont soumises à des réglementations de plus en plus strictes. Les constructeurs automobiles ont donc besoin de modèles capables de prédire l’évolution en nombre et en taille de ces particules de suies. Dans ce cadre, un modèle de suies basé sur une représentation sectionnelle de la phase solide est proposé dans cette thèse. Le choix de ce type d’approche est d’abord justifié par l’étude de l’état de l’art de la modélisation des suies. Le modèle de suies proposé est ensuite décrit. A chaque instant et en c

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Eastwood, S. J. "Hybrid LES – RANS of complex geometry jets." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598741.

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A promising technique for exploring jet flows is large eddy simulation (LES). However for jet LES a number of key unanswered questions remain. These include the sensitivity of solutions to the numerical scheme, subgrid scale (SGS) model and inlet conditions. Results show that for more dissipative, robust solvers often found in industry, SGS model omission can give useful results. Solutions which use no SGS model are called Numerical LES (NLES). For less dissipative codes, solutions are found to be relatively insensitive to the choice of SGS model. An industrial based solver is selected and val

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Doo, Christopher R. "A RANS investigation of hull-propeller interaction." Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401435.

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Lederer, Julien Pascal. "Soutenabilité, risques climatiques et analyse d'équations RANS." Rennes 1, 2006. http://www.theses.fr/2006REN1S008.

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On définit des modèles et problèmes mathématiques concernant la notion de politique soutenable/durable dans un point de vue axé sur les risques climatiques. Le résultat est un problème de contrôle optimal intégrant un système simpliste couplant économie, finance et équations de Navier-Stokes moyennées (RANS). L'analyse du système RANS est traitée dans la suite. On se concentre sur le cas des viscosités turbulentes non bornées. Sous des hypothèses compatibles avec la physique 3D, on montre l'existence de solutions scalaires (sans terme de pression) et dans des ouverts périodiques avec une estim

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Zhang, Xinlei. "Optimisation de la modélisation RANS d'écoulements cavitants." Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0060.

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Des écoulements cavitants turbulents se produisent dans de nombreuses applicationspratiques telles que les pompes et les propulseurs navals. Dans ces dispositifs, l'implosion des bulles decavitation combinée à des instabilités à différentes échelles engendrent des effets nuisibles majeurscomme des fluctuations du débit, du bruit, des vibrations et de l'érosion. Il est donc essentiel de prédirecorrectement ces instabilités, afin de réduire leurs conséquences. Pour simuler les écoulements cavitantsturbulents, l'approche la plus couramment utilisée est « Reynolds Averaged Navier-Stokes » (RANS)co

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Mozaffari, Sajad. "Adaptive Grid Refinement for Hybrid RANS/LES." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0009.

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Les modèles hybrides RANS/LES, qui utilisent les capacités des modèles RANS et LES, conviennent pour la simulation d’écoulements à nombre de Reynolds élevé avec des phénomènes physiques et des géométries complexes. Pourtant, en raison de la dépendance du comportement de ces modèles par rapport à la taille locale des mailles, la génération de maillages avec une bonne résolution est cruciale. Pour une simulation hybride RANS/LES complexe, la génération du maillage est une étape qui demande un effort important. Un processus de rafﬁnement adaptatif est une alternative intéressante, mais nécessite

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Chen, Yi-Ju. "Distribution results for certain tests based on ranks /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841272.

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Léonard, Thomas. "Étude des approches de modélisation de la turbulence pour la simulation numérique d’un compresseur centrifuge à fort taux de pression." Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0029/document.

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Cette étude a pour objectif d’étudier différentes approches de modélisation de la turbulence sur un compresseur centrifuge industriel à fort taux de pression afin d’essayer d’élargir notre compréhension des différents phénomènes physiques mis en jeu et leur interaction avec la turbulence. D’abord, la sensibilité au maillage et au modèle turbulence est évalué sur des calculs RANS. Une analyse de simulations LES est ensuite effectuée. En particulier, une étude de l’effet de la turbulence sur l’écoulement et une comparaison aux résultats RANS et expérimentaux est réalisée. Enfin, deux approches h

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Felis-Carrasco, Francisco. "Atomisation et dispersion d'un jet liquide : approches numérique et expérimentale." Thesis, Ecole centrale de Marseille, 2017. http://www.theses.fr/2017ECDM0001/document.

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L'atomisation d'un jet circulaire d'eau typique des applications agricoles est présentée dans cette étude. Maîtriser la dispersion de l'eau à des fins d'irrigation ou de traitements phytosanitaires implique de réduire la consommation d’eau et la pollution de l'environnement. Un cas d'étude simplifié est construit : une buse ronde dn=1.2 mm et d'une longueur Ln=50dn y est considérée. La vitesse d'injection est fixée à UJ=35 m/s et alignée avec la gravité, plaçant le jet liquide dans un régime d'atomisation turbulent. L'écoulement est statistiquement axisymétrique. L'approche est à la fois expér

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Friess, Christophe. "Modélisation hybride RANS / LES temporelle des écoulements turbulents." Phd thesis, Université de Poitiers, 2010. http://tel.archives-ouvertes.fr/tel-00598800.

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En situation industrielle, le calcul des caractéristiques instationnaires et tridimensionnelles d' écoulements complexes, est souvent nécessaire. La simulation des grandes échelles requiert un coût de calcul prohibitif surtout près de parois. L'un des objectifs des méthodes hybrides est d'optimiser le coût de calcul, en simulant certaines zones d'un écoulement en mode RANS et d'autres en mode LES. Cette dernière s'articule en géné́ral autour du filtrage spatial, alors que dans la plupart des écoulements, l'opérateur RANS correspond à une moyenne temporelle. L'approche PITM (Partially Integrate

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Dow, Eric Alexander. "Quantification of structural uncertainties in RANS turbulence models." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68407.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 69-70).<br>This thesis presents an approach for building a statistical model for the structural uncertainties in Reynolds averaged Navier-Stokes (RANS) turbulence models. This approach solves an inference problem by comparing the results of RANS calculations to direct numerical simulation. The adjoint method is used to efficiently solve an inverse problem to determine the RANS turbulent viscosity field that most a

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Li, Jinghua. "Hybrid RANS/LES modelling of OGV/prediffuser flow." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/9481.

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In the gas turbine engine, the OGV/prediffuser combination is key to achieve a good design for combustor external aerodynamics. Since the flow includes 3D turbulent wakes and boundary layers in adverse pressure gradients with the possibility of flow separation, the OGV/prediffuser combination offers significant turbulence modelling challenges for CFD. In order to understand the optimum approach for modelling turbulence in this important sub-component of compressor/combustor interaction, a comparison is reported in this thesis with available experimental data for both a conventional and an adva

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Azarpeyvand, Mahdi. "Some aspects of RANS based jet noise prediction." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/66622/.

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Poulain, Arthur. "RANS & WMLES Simulations of Compressor Corner Separation." Thesis, KTH, Mekanik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279819.

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In axial compressor, corner separation phenomenon can occur between the blade surface and the hub. This leads to high total pressure losses, blockage and may worsen to surge. Various studies on NACA65-009 blade were previously performed experimentally and numerically to predict the corner separation. The LMFA showed that RANS simulations tend to overestimate it while the Wall-Resolved LES (WRLES) was able to well capture it. The conclusions drawn on RANS are validated here with another solver software. An extensive parametric study is performed on RANS which highlights the good performance of

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Bouvattier, Marc-Antoine. "Unstructured mesh adaptation for turbo-machinery RANS computation." Thesis, KTH, Flygdynamik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211161.

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This paper gives an overview of the mathematical and practical tools that can be used in turbo-machinery RANS simulation to realize unstructured mesh adaptation. It first presents the concept of metric and recalls that the hessian of the physical flow properties can become, thanks to small modifications, both a metric and a upper bound of the P1 projection error. The resulting metric is then studied on a simple 2D case. In a second part, the industrial application of this concept is addressed and the tools used to overcome the turbo-machinery specificities are explained. Finally, some 2D and 3

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Duan, Jiuding. "Predicting with Structured Data: Graphs, Ranks, and Time Series." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/265211.

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京都大学<br>新制・課程博士<br>博士(情報学)<br>甲第23439号<br>情博第769号<br>新制||情||131(附属図書館)<br>京都大学大学院情報学研究科知能情報学専攻<br>(主査)教授鹿島久嗣, 教授山本章博, 教授阿久津達也<br>学位規則第4条第1項該当<br>Doctor of Informatics<br>Kyoto University<br>DFAM

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Aumelas, Vivien. "Modélisation des hydroliennes à axe vertical libres ou carénées : développement d'un moyen expérimental et d'un moyen numérique pour l'étude de la cavitation." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00635123.

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Cette thèse s'inscrit dans le cadre des énergies renouvelables au sein du programme HARVEST centré sur le développement d'un concept d'hydrolienne dérivé des turbines Darrieus et Gorlov. L'ajout d'un dispositif appelé carénage à la turbine permet à celle-ci d'extraire une portion de l'énergie cinétique du courant plus grande. Toutefois ce dernier peut favoriser la cavitation qui nuit à la turbine. Parmi les différents axes du programme, les travaux de thèse se situent dans cette problématique. En régime subcavitant et cavitant, l'analyse de l'hydrolienne a été menée suivant une approche numéri

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Ruan, S. "Turbulent partially premixed combustion : DNS analysis and RANS simulation." Thesis, University of Cambridge, 2013. https://www.repository.cam.ac.uk/handle/1810/244504.

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Increasingly stringent regulation of pollutant emission has motivated the search for cleaner and more efficient combustion devices, which remain the primary means of power generation and propulsion for all kinds of transport. Fuel-lean premixed combustion technology has been identified to be a promising approach, despite many difficulties involve, notably issues concerning flame stability and ignitability. A partially premixed system has been introduced to remedy these problems, however, our understanding on this combustion mode needs to be greatly improved to realise its full potential. This

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De, Prisco Giuseppe. "Hybrid RANS LES simulation of non-equilibrium boundary layers." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/6813.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Knight, Kyle Cohn Davis. "Assessment of RANS Turbulence Models for Strut-Wing Junctions." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/31760.

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Multidisciplinary Design Optimization (MDO) studies show the Strut/Truss Braced Wing (SBW/TBW) concept has the potential to save a significant amount of fuel over conventional designs. For the SBW/TBW concept to achieve these reductions, the interference drag at the wing strut juncture must be small compared to other drag sources. Computational Fluid Dynamics (CFD) studies have concluded the interference drag is small enough for the TBW concept to be practical. However, the turbulence models used in these studies have not been validated for transonic, high Reynolds number, junction flows. This

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DeSena, Geoffrey. "Improvement of RANS Forest Model via Closure Coefficient Modification." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326514.

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As wind farms continue to take up more land throughout Northern Europe, developers are looking to sparsely populated areas, particularly in northern Fennoscandia, which hosts strong winds but also mixed and patchy forests over complex terrain. The complexity makes wind resource assessments difficult, raising uncertainty and therefore cost. Computational fluid dynamics (CFD) has the potential to increase the accuracy and reliability of wind models, but the most common form of commercial CFD modeling, Reynolds averaged Navier-Stokes (RANS), makes limiting assumptions about the effect of the fore

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Rajamani, Bharanidharan. "Hybrid RANS-LES modeling of High-Re turbulent flows." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1779690381&sid=14&Fmt=2&clientId=48051&RQT=309&VName=PQD.

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Ploé, Patrick. "Surrogate-based optimization of hydrofoil shapes using RANS simulations." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0012/document.

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Cette thèse présente un framework d’optimisation pour la conception hydrodynamique de forme d’hydrofoils. L’optimisation d’hydrofoil par simulation implique des objectifs d’optimisation divergents et impose des compromis contraignants en raison du coût des simulations numériques et des budgets limités généralement alloués à la conception des navires. Le framework fait appel à l’échantillonnage séquentiel et aux modèles de substitution. Un modèle prédictif est construit en utilisant la Régression par Processus Gaussien (RPG) à partir des données issues de simulations fluides effectuées sur diff

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Menier, Victorien. "Numerical methods and mesh adaptation for reliable rans simulations." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066481/document.

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Cette thèse porte sur la prédiction haute-fidélité de phénomènes visqueux turbulents modélisés par les équations Reynolds-Averaged Navier-Stokes (RANS). Si l’adaptation de maillage a été appliquée avec succès aux simulations non-visqueuses comme la prédiction du bang sonique ou la propagation d’explosion, prouver que ces méthodes s’étendent et s’appliquent également aux simulations RANS avec le même succès reste un problème ouvert. Dans ce contexte, cette thèse traite des problématiques relatives aux méthodes numériques (solveur de mécanique des fluides) et aux stratégies d’adaptation de maill

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Didorally, Sheddia. "Prévision des flux de chaleur turbulents et pariétaux par des simulations instationnaires pour des écoulements turbulents chauffés." Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0015/document.

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Cette thèse s’inscrit dans le cadre de l’amélioration des prévisions aérothermiques qui suscite l’intérêt croissant des industriels aéronautiques. Elle consiste à évaluer l’apport des méthodes URANS avancées de type SAS dans la prévision des flux de chaleur turbulents et pariétaux pour des écoulements turbulents chauffés. Elle vise aussi à situer ces approches par rapports aux modèles URANS classiques de type DRSM et hybrides RANS/LES comme la ZDES. Une extension de l’approche SAS à un modèle DRSM a d’abord été proposé afin d’obtenir une meilleure restitution des tensions de Reynolds résolues

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Seelinger, Matthew J. "Breaking ranks : veterans' opposition to universal military training, 1943-1948." Virtual Press, 1996. http://liblink.bsu.edu/uhtbin/catkey/1033637.

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From the colonial period to the present, Americans have debated the role of the military and its place in American society. One important part of this debate is the issue of compulsory military service and whether it is consistent with the ideals of a democratic state. Although Americans have generally accepted compulsory service in times of national emergency, they have often expressed great reservations to it in times of peace. In their view, compulsory military service raises fundamental questions about the responsibilities of citizens to the state.Following World War II, proponents of comp

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Abdalatif, Fatma Alzahra. "In Search of Home; Child Soldiers in al-Shabaab's Ranks." Thesis, Linnéuniversitetet, Institutionen för statsvetenskap (ST), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-106943.

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A history of fragility and conflicts in Somalia has had severe impact on the security of citizens, most notably children. Different non-state actors and armed militias have appeared in Somalia’s timeline impacting the region’s, neighboring and global security. The prevalence of child soldiers in Somalia is alarming and so is the presence of armed groups that regularly recruit them. This paper focuses on studying the causes of child recruitment from a human security lens, examining the impact of fragility in Somalia and the ways by which one particular group; al- Shabaab exploits the fragile en

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Yu, Kai. "Level-set RANS method for sloshing and green water simulations." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2097.

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labourasse, emmanuel. "Reconstruction des fluctuations turbulentes par une approche hybride RANS/LES." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2002. http://tel.archives-ouvertes.fr/tel-00006002.

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Les méthodes actuelles de calcul instationnaire des équations de Navier-Stokes (Simulation Numérique Directe (SND), Simulation des Grandes Echelles (SGE)) demandent encore un temps de calcul excessif pour pouvoir être utilisées à des fins industrielles. D'autre part, les méthodes statistiques (RANS) moins coûteuses, ne permettent pas de rendre compte des phénomènes à large bande fréquentielle, qui sont à l'origine, par exemple, des ondes acoustiques. Le développement de méthodes localement couplées permet de concilier les avantages des deux types d'approches précités (SGE et RANS). Une méthode

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Makowka, Konrad [Verfasser]. "Numerically Efficient Hybrid RANS/LES of Supersonic Combustion / Konrad Makowka." München : Verlag Dr. Hut, 2016. http://d-nb.info/1084385236/34.

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Patel, Alpesh K. "Développement d'un solveur RANS adaptatif sur maillages non-structurés hexaédriques." Doctoral thesis, Universite Libre de Bruxelles, 2003. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211338.

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