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Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 19 lutego 2022

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1

Castro, Nicholas D. "Numerical Modeling of Synthetic Jets in Quiescent Air with Moving Boundary Conditions." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/1466.

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Flow control is a key factor in optimizing the performance of any vehicle moving through fluids. Particularly, in aerodynamics there are many potential benefits for implementing synthetic jets to achieve aircraft designs with less moving parts, uper- maneuverability, and separation control for fuel economy. Piezoelectric synthetic jets are of special interest because of their lightweight and low power consumption. Numerous publications on such jets are available. Actuator properties and boundary conditions relevant to this particular application however are often overlooked. The focus of this

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2

Ablikim, Medina. "Boundary sinh-Gordon model and its supersymmetric extension." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4853/.

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Three different aspects of the sinh-Gordon model are explored in this thesis. We begin, in chapter one, with a summary of the model and the necessary background. Chapter two studies the model with two boundary conditions. Two approaches are presented to investigate the reflection factors off the boundaries and the energy of the theory. In chapter three, perturbation theory is developed to study the theory with one general boundary condition. A contribution to the quantum reflection factor is obtained and compared with the result obtained for the special boundary condition. Chapters four and fi

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3

Trovant, Michael. "A boundary condition coupling strategy for the modeling of metal casting processes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0011/NQ35346.pdf.

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4

Chenaghlou, Alireza. "Quantum corrections to the classical reflection factor of the sinh-Gordon model." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4347/.

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This thesis studies the quantum reflection factor of the sinh-Gordon model under boundary conditions consistent with integrability. First, we review the affine Toda field theory in Chapter One. In particular, the classical and quantum integrability of the theory are reviewed on the whole line and on the half-line as well, that is, in the presence of a boundary. We next consider the sinh-Gordon model which is restricted to a half-line by boundary conditions maintaining integrability in Chapter Two. A perturbative calculation of the reflection factor is given to one loop order in the bulk coupli

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5

Jolley, Kenny. "Multiscale methods for nanoengineering." Thesis, University of Leicester, 2009. http://hdl.handle.net/2381/7809.

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This thesis is presented in two sections. Two different multiscale models are developed in order to increase the computational speed of two well known atomistic algorithms, Molecular Dynamics (MD) and Kinetic Monte Carlo (KMC). In Section I, the MD method is introduced. Following this, a multiscale method of linking an MD simulation of heat conduction to a finite element (FE) simulation is presented. The method is simple to implement into a conventional MD code and is independent of the atomistic model employed. This bridge between the FE and MD simulations works by ensuring that energy is con

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6

Moretti, Rocco. "Étude et amélioration des méthodologies de couplage aérothermique fluide-structure." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM076.

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Ces travaux s’inscrivent dans la résolution de problèmes couplés aérothermiques. Il s’agit notamment d’améliorer les méthodes de couplage en termes de précision et de robustesse. La stabilité du couplage aérothermique en régime permanent a été d’abord étudiée (couplage faible). Un nombre de Biot numérique a été défini ce qui permet d’évaluer l’intensité de l’interaction thermique fluide-structure. Plusieurs méthodes (Dirichlet-Robin, Neumann-Robin et Robin-Robin) ont été étudiées et leur domaine de validité a été défini. La méthode Dirichlet-Robin avec un coefficient de sécurité s’est avérée l

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7

Mikhaylenko, Maxim A. "Development and Application of the Boundary Singularity Method to the Problems of Hydrodynamic and Viscous Interaction." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1442423671.

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8

Maati, Amel. "Mise en œuvre de formalismes pour la modélisation de grands réseaux périodiques d'antennes." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0009/document.

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Cette thèse se place dans le contexte général de la modélisation de réseaux d’antennes de grande taille, avec pour objectif d’atteindre un niveau de précision suffisamment élevé pour permettre une optimisation complète des performances et en particulier une amélioration de l’efficacité énergétique. Partant du constat que l’optimisation électromagnétique de grands réseaux représente un verrou si les couplages doivent être modélisés efficacement, cette thèse propose la mise en œuvre d’une méthode permettant la modélisation fine de grands réseaux d'antennes tout en réduisant les temps de calcul e

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9

Warman, Craig S. "Understanding the spatial and temporal variation in anthropogenically induced channel response in the Irwin River catchment." University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0214.

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The Irwin River catchment, located in the central western region of Western Australia, has been the scene of significant geomorphological change over both historical and geological timescales. This thesis focuses on the most recent of these changes, the anthropogenic imprint, through the development of a catchment-scale understanding of system behaviour. Analysis and modelling of changes in the hydrological behaviour of the system indicates that while the Irwin River has displayed a natural susceptibility to large flood events, these have been exacerbated by the widespread clearing of native v

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10

Fajardo, Peña Pablo. "Methodology for the Numerical Characterization of a Radial Turbine under Steady and Pulsating Flow." Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/16878.

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The increasing use of turbochargers is leading to an outstanding research to understand the internal flow in turbomachines. In this frame, computational fluid dynamics (CFD) is one of the tools that can be applied to contribute to the analysis of the fluid-dynamic processes occurring in a turbine. The objective of this thesis is the development of a methodology for performing simulations of radial turbomachinery optimizing the available computational resources. This methodology is used for the characterization of a vaned-nozzle turbine under steady and pulsating flow conditions. An important

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11

Müller-Bierl, Bernd Michael. "Rayonnement et couplage entre les interconnexions dans les circuits hyperfréquences : étude au moyen de la méthode tlm." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0026.

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La these est constitue de 3 parties principales. Apres une introduction a l'analyse des lignes micro-ruban sous approximation de propagation des signaux en mode tem, la premiere partie traite d'une methode d'anaulyse dynamique valable pour des distributions de champs qui peuvent meme etre eloignees du mode tem, la methode tlm (transmission line matrix method), introduite 1971 par johns et al. La methode tlm est presentee comme un processus de repartition base sur la decomposition des equations de maxwell sous forme matricielle. Dans une deuxieme partie nous traitons de la possibilite d'utilise

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12

Ehrhardt, Matthias. "Discrete artificial boundary conditions." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=965232921.

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13

le, coupanec erwan. "Boundary conditions for the lattice Boltzmann method : Mass conserving boundary conditions for moving walls." Thesis, Norwegian University of Science and Technology, Department of Energy and Process Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10154.

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<p>Based on the no-slip boundary condition for walls at rest for the lattice Boltzmann Bathnagar-Gross-Krook method by J.C.G. Verschaeve [Phys. Rev. 80,036703 (2009)], a no-slip boundary condition for walls with a tangential movement is derived. Numerical tests verify that the present boundary condition is second order accurate and stable for relaxation frequencies close to two.</p>

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14

Boström, Erik. "Boundary Conditions for Spectral Simulations of Atmospheric Boundary Layers." Licentiate thesis, KTH, Stabilitet, Transition, Kontroll, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-218054.

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An atmospheric boundary layer (ABL) is generally a very high Reynolds number boundary layer over a fully rough surface that is influenced by different external forces. Numerical simulations of ABLs are typically demanding, particularly due to the high Reynolds numbers. Large eddy simulation (LES) where the grid filtered Navier--Stokes equations are solved together with a turbulence model for the subgrid-scale motions is the most accurate and widely used technique to date for ABLs. However, high Reynolds numbers, filtered equations and rough surfaces do not support the simple no-slip boundary c

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15

Gamlin, Samuel. "Boundary conditions in Abelian sandpiles." Thesis, University of Bath, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687371.

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The focus of this thesis is to investigate the impact of the boundary conditions on configurations in the Abelian sandpile model. We have two main results to present in this thesis. Firstly we give a family of continuous, measure preserving, almost one-to-one mappings from the wired spanning forest to recurrent sandpiles. In the special case of $Z^d$, $d \geq 2$, we show how these bijections yield a power law upper bound on the rate of convergence to the sandpile measure along any exhaustion of $Z^d$. Secondly we consider the Abelian sandpile on ladder graphs. For the ladder sandpile measure,

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16

Fouchet-Incaux, Justine. "Modélisation, analyse numérique et simulations autour de la respiration." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112043.

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Cette thèse est consacrée à la modélisation de la ventilation mécanique chez l'humain et à l'analyse numérique des systèmes en découlant. Des simulations directes d'écoulement d'air dans l'ensemble des voies aériennes étant impossibles (maillages indisponibles et géométrie trop complexe), il est nécessaire de considérer un domaine d'intérêt réduit, qui implique de travailler dans une géométrie tronquée, comportant des frontières artificielles ou encore de considérer des modèles réduits simples mais représentatifs. Si on cherche à effectuer des simulations numériques 3D où l'écoulement du fluid

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17

Roman, Svetlana. "Green's functions for boundary-value problems with nonlocal boundary conditions." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20111227_092148-01085.

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In the dissertation, second-order and higher-order differential and discrete equations with additional conditions which are described by linearly independent linear functionals are investigated. The solutions to these problems, formulae and the existence conditions of Green's functions are presented, if the general solution of a homogeneous equation is known. The relation between two Green's functions of two nonhomogeneous problems for the same equation but with different additional conditions is obtained. These results are applied to problems with nonlocal boundary conditions. In the introd

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18

Onyango, Thomas Tonny Mboya. "Boundary element methods for solving inverse boundary conditions identification problems." Thesis, University of Leeds, 2008. http://etheses.whiterose.ac.uk/11283/.

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This thesis explores various features of the boundary element method (BEM) used in solving heat transfer boundary conditions identification problems. In particular, we present boundary integral equation (BIE) formulations and procedures of the numerical computation for the approximation of the boundary temperatures, heat fluxes and space, time or temperature dependent heat transfer coefficients. There are many practical heat transfer situations where such problems occur, for example in high temperature regions or hostile environments, such as in combustion chambers, steel cooling processes, et

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19

Schulze, Bert-Wolfgang, and Nikolai Tarkhanov. "Boundary value problems with Toeplitz conditions." Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2009/2983/.

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We describe a new algebra of boundary value problems which contains Lopatinskii elliptic as well as Toeplitz type conditions. These latter are necessary, if an analogue of the Atiyah-Bott obstruction does not vanish. Every elliptic operator is proved to admit up to a stabilisation elliptic conditions of such a kind. Corresponding boundary value problems are then Fredholm in adequate scales of spaces. The crucial novelty consists of the new type of weighted Sobolev spaces which serve as domains of pseudodifferential operators and which fit well to the nature of operators.

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20

Stephenson, P. W. "Glueball spectra with twisted boundary conditions." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276836.

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21

Park, Kyeong M. "Boundary conditions of font size effects." Thesis, The University of Alabama in Huntsville, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10130786.

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<p> Prior research has shown that people perceive items in a larger font size as being more memorable than items in a smaller font size. This perception leads to higher judgments of learning (JOLs; i.e., confidence ratings regarding the likelihood of recalling an item) for larger font size items than smaller font size items. Yet other research has shown that people recalled more when the information was presented in a smaller font than when it was presented in a larger font size. The present study examined if there are boundary conditions of font sizes affecting JOLs and actual recall performa

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22

Deadman, Edvin. "Outer boundary conditions in numerical relativity." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608394.

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Schulze, Bert-Wolfgang, and Y. Wei. "Edge-boundary problems with singular trace conditions." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2009/3031/.

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The ellipticity of boundary value problems on a smooth manifold with boundary relies on a two-component principal symbolic structure (σψ; σ∂), consisting of interior and boundary symbols. In the case of a smooth edge on manifolds with boundary we have a third symbolic component, namely the edge symbol σ∧, referring to extra conditions on the edge, analogously as boundary conditions. Apart from such conditions in integral form' there may exist singular trace conditions, investigated in [6] on closed' manifolds with edge. Here we concentrate on the phenomena in combination with boundary conditio

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24

Cousins, William Bryan. "Boundary Conditions and Uncertainty Quantification for Hemodynamics." Thesis, North Carolina State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3575896.

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<p> We address outflow boundary conditions for blood flow modeling. In particular, we consider a variety of fundamental issues in the structured tree boundary condition. We provide a theoretical analysis of the numerical implementation of the structured tree, showing that it is sensible but must be performed with great care. We also perform analytical and numerical studies on the sensitivity of model output on the structured tree's defining geometrical parameters. The most important component of this dissertation is the derivation of the new, generalized structured tree boundary condition. Unl

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25

Zacher, Rico. "Quasilinear parabolic problems with nonlinear boundary conditions." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969321899.

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26

Stigner, Carl. "A classifying algebra for CFT boundary conditions." Licentiate thesis, Karlstad University, Faculty of Technology and Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-4890.

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<p>Conformal field theories (CFT) constitute an interesting class of twodimensionalquantum field theories, with applications in string theoryas well as condensed matter physics. The symmetries of a CFT can beencoded in the mathematical structure of a conformal vertex algebra.The rational CFT’s are distinguished by the property that the categoryof representations of the vertex algebra is a modular tensor category.The solution of a rational CFT can be split off into two separate tasks, apurely complex analytic and a purely algebraic part.</p><p>The TFT-construction gives a solution to the second

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27

Olsen, Robert. "Time-dependent boundary conditions for multiphase flow." Doctoral thesis, [Trondheim : Norges teknisk-naturvitenskapelige universitet, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-237.

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Moore, Stuart Alex. "Lateral boundary conditions in numerical ocean models." Thesis, University of Reading, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402199.

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Gunson, James Reginald. "Estimating open-ocean boundary conditions : sensitivity studies." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/53024.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.<br>Includes bibliographical references (leaves 145-149).<br>by James Reginald Gunson.<br>Ph.D.

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30

Savi, L. L. [UNESP]. "A geometric approach to cosmological boundary conditions." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132136.

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Made available in DSpace on 2015-12-10T14:24:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-06-09. Added 1 bitstream(s) on 2015-12-10T14:30:15Z : No. of bitstreams: 1 000852869.pdf: 540584 bytes, checksum: 876f75004ad5a8e7b7dbf74986332aea (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A assimetria temporal observada na física macroscópica se deve à conﬁguração de entropia extremamente baixa do universo primordial. Apesar de a matéria estar muito quente e com uma temperatura uniforme naquele estágio, os graus de liberdade gravitacionais estavam em g

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Savi, L. L. (Lucas Lolli). "A geometric approach to cosmological boundary conditions /." São Paulo, 2015. http://hdl.handle.net/11449/132136.

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Orientador: José Geraldo Pereira<br>Banca: Bruto Max Pimentel Escobar<br>Banca: Roldão da Rocha Junior<br>Banca: Davi Cabral Rodrigues<br>Banca: José abdalla Helayel-Neto<br>Resumo: A assimetria temporal observada na física macroscópica se deve à conﬁguração de entropia extremamente baixa do universo primordial. Apesar de a matéria estar muito quente e com uma temperatura uniforme naquele estágio, os graus de liberdade gravitacionais estavam em grande medida suprimidos, fato este que contribui para o baixo valor da entropia e está codiﬁcado no alto grau de simetria espacial (caráter aproximada

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32

Li, Hongwei. "Local absorbing boundary conditions for wave propagations." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1434.

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33

Wintz, Nick. "Eigenvalue comparisons for an impulsive boundary value problem with Sturm-Liouville boundary conditions." Huntington, WV : [Marshall University Libraries], 2004. http://www.marshall.edu/etd/descript.asp?ref=414.

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Bertolaccini, Jonathan. "Modélisation et simulation des écoulements de contre-courant de l'hélium superfluide par la méthode Boltzmann sur réseau." Thesis, Lyon, École normale supérieure, 2015. http://www.theses.fr/2015ENSL1063/document.

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Les propriétés thermiques exceptionnelles de l’hélium superfluide, ou He-II, sont mises à profit pour la réfrigération cryogénique d'installations de forte puissance, bien que les mécanismes physiques sous-jacents restent mal compris. L’He-II peut être décrit à l’échelle macroscopique comme la superposition de deux fluides en interaction : un fluide normal se comportant comme un liquide ordinaire, et un superfluide sans viscosité. En présence d’une source de chaleur, un contre-courant s’établit naturellement entre ces deux composantes. L’évacuation de la chaleur par ce contre-courant est limit

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Schulze, Bert-Wolfgang, and Jörg Seiler. "Pseudodifferential boundary value problems with global projection conditions." Universität Potsdam, 2002. http://opus.kobv.de/ubp/volltexte/2008/2623/.

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Contents: Introduction 1 Operators with the transmission property 1.1 Operators on a manifold with boundary 1.2 Conditions with pseudodifferential projections 1.3 Projections and Fredholm families 2 Boundary value problems not requiring the transmission property 2.1 Interior operators 2.2 Edge amplitude functions 2.3 Boundary value problems 3 Operators with global projection conditions 3.1 Construction for boundary symbols 3.2 Ellipticity of boundary value problems with projection data 3.3 Operators of order zero

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36

Mossige, Endre Joachim. "Curved Boundary Conditions for the Lattice Boltzmann Method." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14667.

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The lattice Boltzmann method is a modern method in computational fluid dynamics. Its primary use is the simulation of incompressible flows. It has computational advantages over conventional methods like the finite volume method. However, the implementation of boundary conditions is still an unsolved topic for this method. The method is defined on a Cartesian grid such that curved walls need special treatment as they are generally not aligned with the grid lines. We investigated a number of straight and curved boundary conditions and performed four different benchmark tests to verify these. B

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Jung, Florian [Verfasser]. "Canonical group quantization and boundary conditions / Florian Jung." Mainz : Universitätsbibliothek Mainz, 2012. http://d-nb.info/1025490088/34.

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Appelö, Daniel. "Non-reflecting Boundary Conditions for Wave Propagation Problems." Licentiate thesis, KTH, Numerical Analysis and Computer Science, NADA, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1664.

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<p>We consider two aspects of non-reflecting boundaryconditions for wave propagation problems. First we evaluate aproposed Perfectly Matched Layer (PML) method for thesimulation of advective acoustics. It is shown that theproposed PML becomes unstable for a certain combination ofparameters. A stabilizing procedure is proposed andimplemented. By numerical experiments the performance of thePML for a problem with nonuniform flow is investigated. Furtherthe performance for different types of waves, vorticity andsound waves, are investigated.</p><p>The second aspect concerns spurious waves, which a

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39

Burgess, N. A. "Stable boundary conditions for the shallow water equations." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380000.

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Ilie, Alexandra. "Unethical Pro-Organizational Behaviors: Antecedents and Boundary Conditions." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4085.

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The goals of the current study were to examine the antecedents and boundary conditions of a new construct called unethical pro-organizational behavior (UPB) defined as behaviors that are unethical but at the same time helping the organizations (e.g., giving a low performing employee a letter of recommendation to help him/her find a job in another organization). Drawing from social exchange theory, antecedents such as leader-member exchange, perceived organizational support, idiosyncratic deals, and leader-member exchange were hypothesized to be positively related to UPB Three moderators of the

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41

Arbegard, Fredrik, and Håkan Jakobsson. "Evaluation of Boundary Conditions in Chassis Test Rig." Thesis, KTH, Hållfasthetslära (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176497.

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Trucks are constantly developed in order to achieve new goals in terms of demands from the customers and regulation. In order to develop the truck chassis to withstand the load, different tests are conducted and among those life time testing. At Scania, service life of frames and suspensions is tested using a purpose built test rig known as Ramriggen. The test rig subjects the frame to a quasi-static load created of measurements from a test track. The current rig for frame testing has boundary conditions that distribute the loads unevenly within the chassis, especially for trucks with added fr

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42

Shepherd, Roger. "Coupled non-linear diffusion under periodic boundary conditions." Thesis, University of South Wales, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239985.

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Padbidri, Jagan. "Minimal boundary conditions for simulations of disordered materials." WSU all campuses online access, 2003. http://www.dissertations.wsu.edu/Thesis/Fall2003/j%5Fpadbidri%5F121503.pdf.

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Dade, William Brian. "Studies on boundary conditions for fine-sediment transport /." Thesis, Connect to this title online; UW restricted, 1992. http://hdl.handle.net/1773/11052.

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Bélanger-Rioux, Rosalie. "Compressed absorbing boundary conditions for the Helmholtz equation." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90179.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2014.<br>56<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 101-105).<br>Absorbing layers are sometimes required to be impractically thick in order to offer an accurate approximation of an absorbing boundary condition for the Helmholtz equation in a heterogeneous medium. It is always possible to reduce an absorbing layer to an operator at the boundary by layer-stripping elimination of the exterior unknowns, but the linear algebra involved is costly. We prop

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LaGrone, John. "Application and optimization of complete radiation boundary conditions." Thesis, Southern Methodist University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10144064.

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<p> We describe the implementation of optimal local radiation boundary condition sequences for second order finite difference approximations to Maxwell's equations and the scalar wave equation using the double absorbing boundary formulation. Numerical experiments are presented which demonstrate that the design accuracy of the boundary conditions is achieved and exceeds that of perfectly matched layers for comparable effort. </p><p> We also describe the application of CRBC type boundary conditions for elastic waves in (an)isotropic media. The results show that we can optimize the CRBC problem

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47

Mezzadri, Francesco. "Boundary conditions for torus maps and spectral statistics." Thesis, University of Bristol, 1999. http://hdl.handle.net/1983/dcba3276-00be-4bae-a89f-f864750e77ff.

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Massa, Kenneth L. "Control of Burgers' Equation With Mixed Boundary Conditions." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36681.

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We consider the problems of simulation and control for Burgers' equation with mixed boundary conditions. We first conduct numerical experiments to test the convergence and stability of two standard finite element schemes for various Robin boundary conditions and a variety of Reynolds numbers. These schemes are used to compute LQR feedback controllers for Burgers' equation with boundary control. Numerical studies of these feedback control laws are used to evaluate the performance and practicality of this approach to boundary control of non-linear systems.<br>Master of Science

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Berrabah, Nassif. "On High Order On-Surface Radiation Boundary Conditions." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1415620836.

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Ahmed, Ashfaq. "Investigation of boundary conditions for hydrological design analysis." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396238.

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This study deals with the fundamental problems of hydrological design. Specifically, it explores the boundary conditions for design flood analysis. The problem of extrapolation of design relationships has been investigated by the systematic analysis of important design parameters namely unit hydrograph time to peak (tp), catchment antecedent conditions (CWI), runoff losses (PR) and the relationship between rainfall and flood return periods. In particular, this thesis investigates the combination of these variables representative of design analysis. A review of the hydrological design tools of

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