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Dissertations / Theses on the topic 'Explicit transport'

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1

Vignjevic, R. "A simplified simulation of the combined bending/torsion collapse of thin walled beams in the explicit DYNA3D code." Thesis, Cranfield University, 1993. http://dspace.lib.cranfield.ac.uk/handle/1826/11110.

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2

Montojo, Villasanta Javier, and Viñas Manuel Maqueda. "Congestion Identification in a Radio Access Transport Network." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142437.

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The convergence of mobile services and Internet has brought a radical change in mobile networks. An all IP network architecture, an evolution of the radio access transport network, is required to support new high-bandwidth services. Unfortunately, existing control mechanisms are insufficient to guarantee end users a high quality of experience. However, coordinating radio and transport network resources is expected to yield a more efficient solution. This thesis project investigates the interactions between the congestion avoidance protocols, explicit congestion notification, and the traffic en
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3

Krishnan, Sunitha. "An explicit rate control algorithm and A source bandwidth request algorithm for the transport on MPEG video over ATM." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0001/MQ32402.pdf.

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4

Bauer, Frédéric. "Transport et production dans les écoulements turbulents de paroi à des nombres de Reynolds modérés." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAI033/document.

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L'approche de simulation numérique directe est utilisée pour la simulation d'un écoulement en canal pleinement turbulent afin d'étudier l'influence des grandes échelles de l'écoulement ainsi que la dynamique du transport des contraintes de Reynolds et de la vorticité. Les simulations sont réalisées sur un domaine de calcul de grande taille afin de pouvoir capturer l'intégralité des grandes structures de l'écoulement, et portent sur une gamme relativement étendue de nombres de Reynolds (Reτ =180, 395, 590 et 1100) allant des écoulements faiblement turbulents à des écoulements modérément turbule
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5

Kunadian, Illayathambi. "NUMERICAL INVESTIGATION OF THERMAL TRANSPORT MECHANISMS DURING ULTRA-FAST LASER HEATING OF NANO-FILMS USING 3-D DUAL PHASE LAG (DPL) MODEL." UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/324.

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Ultra-fast laser heating of nano-films is investigated using 3-D Dual Phase Lag heat transport equation with laser heating at different locations on the metal film. The energy absorption rate, which is used to model femtosecond laser heating, is modified to accommodate for three-dimensional laser heating. A numerical solution based on an explicit finite-difference method is employed to solve the DPL equation. The stability criterion for selecting a time step size is obtained using von Neumann eigenmode analysis, and grid function convergence tests are performed. DPL results are compared with c
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6

Acevedo, Nancy Isabel Alvarez. "Uma formulação explícita matricial para problemas inversos de transferência radiativa em meios participantes homogêneos unidimensionais." Universidade do Estado do Rio de Janeiro, 2006. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=372.

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Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro<br>A formulação explícita matricial desenvolvida nesta tese de doutorado foi proposta visando ser uma alternativa na solução de Problemas Inversos de estimativa de propriedades radiativas em meios participantes homogêneos unidimensionais usando a Equação de Transferência Radiativa para modelar a interação da radiação com o meio participante. A equação de transporte é formulada em forma matricial e o domínio angular é discretizado usando conceitos do método de ordenadas discretas e a expansão da função de fase do espa
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7

Perry, Isabela Gomes. "Aporte de poluentes atmosféricos na APA de Petrópolis: uso de modelagem atmosférica para explicar resultados experimentais." Niterói, 2017. https://app.uff.br/riuff/handle/1/4482.

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Submitted by Biblioteca de Pós-Graduação em Geoquímica BGQ (bgq@ndc.uff.br) on 2017-09-12T17:14:25Z No. of bitstreams: 1 Mestrado Perry I G.pdf: 1783499 bytes, checksum: 83cf5c6dcb288463ae336f1ff24698e8 (MD5)<br>Made available in DSpace on 2017-09-12T17:14:25Z (GMT). No. of bitstreams: 1 Mestrado Perry I G.pdf: 1783499 bytes, checksum: 83cf5c6dcb288463ae336f1ff24698e8 (MD5)<br>Universidade Federal Fluminense. Instituto de Química. Programa de Pós-Graduação em Geoquímica, Niterói, RJ<br>A APA-Petrópolis, localizada a 863m de altitude na Serra do Mar – RJ apresenta mais de 50% de sua área cobert
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8

Schad, Carlos Eduardo. "Acessibilidade como um fator que explica a posse do automóvel: evidências da Região Metropolitana de São Paulo." Pontifícia Universidade Católica de São Paulo, 2015. https://tede2.pucsp.br/handle/handle/9439.

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Made available in DSpace on 2016-04-26T20:52:38Z (GMT). No. of bitstreams: 1 Carlos Eduardo Schad.pdf: 551184 bytes, checksum: bd9ddc23b049f7d31f913dc75bb1e39e (MD5) Previous issue date: 2015-03-11<br>This study applied the gravity-based accessibility model by public transit and individual modes as an explanatory variable for the number of automobiles in the metropolitan region of São Paulo, using neighborhood level data from the 2007 Metrô Origin and Destination Survey. The regression analysis shows that accessibility by public transit has a negative impact on the number of cars
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9

Cepeda, Manuel. "Modèle d'équilibre dans les réseaux de transport en commun le cas des capacités explicites des services /." [Montréal] : Université de Montréal, 2002. http://wwwlib.umi.com/cr/umontreal/fullcit?pNQ75908.

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Thèse (Ph. D.)--Université de Montréal, 2002.<br>"NQ-75908." "Thèse présentée à la faculté des études supérieures en vue de l'obtention du grade de philosophiae doctor (Ph. D.) en informatique." Version électronique également disponible sur Internet.
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10

Dosne, Cyril. "Development and implementation of adjoint formulation of explicit body-force models for aero-propulsive optimizations." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX026.

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Dans le domaine de l’aéronautique civile, les études de plus en plus nombreuses portant sur les nouveaux systèmes moteurs, tels que les turbofans à très haut taux de dilution et les open-rotors, ainsi que sur les architectures d'intégration motrice innovantes, telles que la propulsion distribuée ou les systèmes à ingestion de couche limite, nécessitent une modélisation couplée de l’aérodynamique externe et du système propulsif, et ce dès les premiers stades de la conception. Les modèles body-force se sont avérés capables de reproduire fidèlement la majeure partie des phénomènes de couplage aér
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11

Clavel, Jean-François. "Modélisation en dynamique transitoire non-linéaire par la méthode des éléments finis en schéma d'intégration explicite sur micro-ordinateur." Nancy 1, 1998. http://www.theses.fr/1998NAN10114.

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La modélisation numérique des phénomènes d'impact et de formage est abordée dans le cadre des méthodes de dynamique explicite appliquées aux configurations bidimensionnelles et axisymétriques. La formulation lagrangienne eulérienne arbitraire est employée pour permettre l'étude de phénomènes impliquant de grandes déformations dans le domaine élastoplastique et cela en conservant une qualité du maillage acceptable. Après une présentation et une analyse des différentes techniques de résolution déjà existantes, notre algorithme de transport est proposé. Il repose sur la séparation des équations q
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12

Lamy, Laurent. "6 Essais sur les enchères: Approches théorique et empirique. Application aux marches de l'électricité." Phd thesis, Ecole des Ponts ParisTech, 2007. http://pastel.archives-ouvertes.fr/pastel-00003797.

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Cette thèse est consacrée à une analyse théorique et empirique de mécanismes de vente aux enchères. Motivée par les problèmes d'allocations dans les industries de réseau, en particulier par la libéralisation du secteur de l'électricité, elle s'intéresse aux enchères avec externalités ainsi qu'aux enchères de multi-objets. Après une introduction qui parcourt l'utilisation et l'analyse des mécanismes de ventes aux enchères d'électricité, six chapitres constitues cette thèse. Le premier considère des ventes aux enchères standard dans le modèle de Milgrom-Weber avec des estimations interdépendante
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13

Mouhot, Clément. "Étude mathématique de quelques équations cinétiques collisionnelles." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2004. http://tel.archives-ouvertes.fr/tel-00008338.

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On s'intéresse dans cette thèse à l'étude des solutions des équations de Boltzmann (élastiques et inélastiques) et Landau. Les axes de cette étude sont la régularité des solutions et leur comportement asymptotique, et nous nous attachons systématiquement à quantifier les résultats obtenus. Dans la première partie, d'une part nous considérons les solutions spatialement homogènes de l'équation de Boltzmann, pour lesquelles nous montrons la propagation de la régularité et la décroissance des singularités pour des interactions à courte portée, et la propagation de bornes <br />d'intégrabilité pour
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14

"Microstructurally Explicit Simulation of the Transport Behavior in Uranium Dioxide." Doctoral diss., 2014. http://hdl.handle.net/2286/R.I.27467.

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abstract: Fission products in nuclear fuel pellets can affect fuel performance as they change the fuel chemistry and structure. The behavior of the fission products and their release mechanisms are important to the operation of a power reactor. Research has shown that fission product release can occur through grain boundary (GB) at low burnups. Early fission gas release models, which assumed spherical grains with no effect of GB diffusion, did not capture the early stage of the release behavior well. In order to understand the phenomenon at low burnup and how it leads to the later release mech
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15

Narayanan, Aarthi Harna Trivesaloor. "A study on the performance of transport protocols combining explicit router feedback with window control algorithms." 2005. http://digital.library.okstate.edu/etd/umi-okstate-1552.pdf.

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16

Heye, Colin Russell. "Adaptive and convergent methods for large eddy simulation of turbulent combustion." Thesis, 2014. http://hdl.handle.net/2152/29141.

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In the recent past, LES methodology has emerged as a viable tool for modeling turbulent combustion. LES computes the large scale mixing process accurately, thereby providing a better starting point for small-scale models that describe the combustion process. Significant effort has been made over past decades to improve accuracy and applicability of the LES approach to a wide range of flows, though the current conventions often lack consistency to the problems at hand. To this end, the two main objectives of this dissertation are to develop a dynamic transport equation-based combustion model fo
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17

Taubitz, Christian. "Investigation of the magnetic and electronic structure of Fe in molecules and chalcogenide systems." Doctoral thesis, 2010. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201006096312.

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In this work the electronic and magnetic structure of the crystals Sr2FeMoO6, Fe0.5Cu0.5Cr2S4, LuFe2O4 and the molecules FeStar, Mo72Fe30, W72Fe30 are investigated by means of X-ray spectroscopic techniques. These advanced materials exhibit very interesting properties like magnetoresistance or multiferroic behaviour. In case of the molecules they also could be used as spin model systems. A long standing issue concerning the investigation of these materials are contradicting results found for the magnetic and electronic state of the iron (Fe) ions present in these compounds. Therefore this work
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18

Souza, Marcelo Anderson de. "4.ª revolução industrial: ameaças ou oportunidades?: como o impacto da utilização do Waze e Uber na Cidade de São Paulo - Brasil explica o fenómeno da quarta revolução industrial." Master's thesis, 2018. http://hdl.handle.net/10071/18786.

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Nos últimos 300 anos presenciamos mudanças profundas em nossas sociedades, economias e sistemas políticos, essas mudanças foram marcadas por revoluções que ocorrem quando novas maneiras de perceber o mundo, carregadas de tecnologia que sozinhas ou em conjunto de outras, novas ou já existentes na época, geram as inovações que desencadeiam alteração profunda e que impulsionam disrupções nos modelos até então conhecidos. Essas dirupções são a consequência, por exemplo, de novas formas de produção que costumam reduzir custos, melhorar a padronização, qualidade e eficiência, refletindo na red
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