Academic literature on the topic 'Non-Cylindrical domains'

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Journal articles on the topic "Non-Cylindrical domains"

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Schindlmayr, G. "Capillary Surfaces in Non-Cylindrical Domains." Zeitschrift für Analysis und ihre Anwendungen 19, no. 3 (2000): 747–62. http://dx.doi.org/10.4171/zaa/978.

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Jenaliyev, M. T., A. M. Serik, and M. G. Yergaliyev. "On the solvability of a boundary value problem for a two-dimensional system of Navier-Stokes equations in a cone." BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS 113, no. 1 (2024): 84–100. http://dx.doi.org/10.31489/2024m1/84-100.

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Due to the fact that the Navier-Stokes equations are involved in the formulation of a large number of interesting problems that are important from an applied point of view, these equations have been the object of attention of mechanics, mathematicians and other scientists for several decades in a row. But despite this, many problems for the Navier-Stokes equation remain unexplored to this day. In this work, we are exploring the solvability of a boundary value problem for a two-dimensional Navier-Stokes system in a non-cylindrical degenerating domain, namely, in a cone with its vertex at the or
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Brown, Russell M., Wei Hu, and Gary M. Lieberman. "Weak solutions of parabolic equations in non-cylindrical domains." Proceedings of the American Mathematical Society 125, no. 6 (1997): 1785–92. http://dx.doi.org/10.1090/s0002-9939-97-03759-3.

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Kuliev, Komil, and Lars-Erik Persson. "An extension of Rothe’s method to non-cylindrical domains." Applications of Mathematics 52, no. 5 (2007): 365–89. http://dx.doi.org/10.1007/s10492-007-0021-6.

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Bernardi, Marco Luigi, Gianni Arrigo Pozzi, and Giuseppe Savaré. "Variational Equations of Schroedinger-Type in Non-cylindrical Domains." Journal of Differential Equations 171, no. 1 (2001): 63–87. http://dx.doi.org/10.1006/jdeq.2000.3834.

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Bran, Cristina, Jose Angel Fernandez-Roldan, Rafael P. del Real, Agustina Asenjo, Oksana Chubykalo-Fesenko, and Manuel Vazquez. "Magnetic Configurations in Modulated Cylindrical Nanowires." Nanomaterials 11, no. 3 (2021): 600. http://dx.doi.org/10.3390/nano11030600.

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Cylindrical magnetic nanowires show great potential for 3D applications such as magnetic recording, shift registers, and logic gates, as well as in sensing architectures or biomedicine. Their cylindrical geometry leads to interesting properties of the local domain structure, leading to multifunctional responses to magnetic fields and electric currents, mechanical stresses, or thermal gradients. This review article is summarizing the work carried out in our group on the fabrication and magnetic characterization of cylindrical magnetic nanowires with modulated geometry and anisotropy. The nanowi
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Kubica, A., P. Rybka, and K. Ryszewska. "Weak solutions of fractional differential equations in non cylindrical domains." Nonlinear Analysis: Real World Applications 36 (August 2017): 154–82. http://dx.doi.org/10.1016/j.nonrwa.2017.01.005.

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Paronetto, Fabio. "An existence result for evolution equations in non-cylindrical domains." Nonlinear Differential Equations and Applications NoDEA 20, no. 6 (2013): 1723–40. http://dx.doi.org/10.1007/s00030-013-0227-0.

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De Caldas, C. S. Q., J. Límaco, and R. K. Barreto. "Beam evolution equation with variable coefficients in non-cylindrical domains." Mathematical Methods in the Applied Sciences 31, no. 3 (2007): 339–61. http://dx.doi.org/10.1002/mma.912.

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Bottois, Arthur, Nicolae Cîndea, and Arnaud Münch. "Optimization of non-cylindrical domains for the exact null controllability of the 1D wave equation." ESAIM: Control, Optimisation and Calculus of Variations 27 (2021): 13. http://dx.doi.org/10.1051/cocv/2021010.

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This work is concerned with the null controllability of the one-dimensional wave equation over non-cylindrical distributed domains. The controllability in that case has been obtained by Castro et al. [SIAM J. Control Optim. 52 (2014)] for domains satisfying the usual geometric optic condition. We analyze the problem of optimizing the non-cylindrical support q of the control of minimal L2(q)-norm. In this respect, we prove a uniform observability inequality for a class of domains q satisfying the geometric optic condition. The proof based on the d’Alembert formula relies on arguments from graph
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Dissertations / Theses on the topic "Non-Cylindrical domains"

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Rivera, Noriega Jorge. "Some remarks on certain parabolic differential operators over non-cylindrical domains /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3025649.

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Klovienė, Neringa. "Non-stationary Poiseuille type solutions for the second grade fluid flow problem in cylindrical domains." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130124_081843-47698.

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In the dissertation one of the Rivlin-Erikson differential type fluids model – the second grade fluids flow problem is considered. The problem is studied in three different unbounded domains: • the two-dimensional channel, • the three-dimensional axially symmetric pipe, • the three-dimensional pipe with an arbitrary cross section. For the two-dimensional channel and the three-dimensional axially symmetric pipe we assume that the initial data and the external force have only the last component and are independent of the coordinate x_n: u_0(x,t)=(0, …, u_{n0}(x’,t)), f(x,t)=(0, …, f_n(x’,t)). We
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Nägele, Philipp [Verfasser], and Michael [Akademischer Betreuer] Růžička. "Monotone operator theory for unsteady problems on non-cylindrical domains = Monotone Operatoren-Theorie für instationäre Probleme auf nicht-zylindrischen Gebieten." Freiburg : Universität, 2015. http://d-nb.info/111932758X/34.

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Mokhtari, Yacine. "Stabilisation et contrôle de quelques systèmes hyperboliques." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2021. http://www.theses.fr/2021UBFCD024.

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Cette thèse est consacrée à l’étude de deux problèmes issus de la théorie du contrôle des EDP. Dans un premier temps, on étudie le comportement asymptotique de la solution du système de von Kàrmàn viscoélastique unidimensionnel avec retard. On montre que ce dernier est bien posé dans un espace fonctionnel convenable en utilisant la méthode de Faedo-Galerkin. Pour établir notre résultat de stabilité, on utilise la méthode de Lyapunov en construisant une fonctionnelle adéquate. Dans un deuxième temps, on étudie le problème de la contrôlabilité et de la stabilisation par le bord pour l’équation d
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Bavelis, Konstantinos. "Finite-element time-domain modelling of cylindrical structures with a modal non-reflecting boundary condition." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/36763/.

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This dissertation presents Galerkin weighted residual Finite-Element Time-Domain (FETD) formulations using a 2D cylindrical modal non-reflecting boundary condition (MNRBC) for the modelling of plane wave scattering from cylindrical structures of arbitrary cross-section surrounded by free space. Chapter 1 begins by presenting the motivation for this work. Key concepts regarding cylindrical geometries are introduced at this stage. The Galerkin weighted residual Finite-Element method is briefly outlined. Chapter 2 presents a novel scattered field FETD-MNRBC formulation for the transverse electric
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Mejri, Youssef. "Problèmes inverses pour l’équation de Schrödinger." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0506/document.

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Les travaux de recherche présentés dans cette thèse sont consacrés à l’étude de la stabilité dans divers problèmes inverses associés à l’équation de Schrödinger magnétique. Dans la première partie, on s’intéresse à un problème inverse concernant l’équation de Schrödinger autonome posée dans un domaine cylindrique non borné, avec potentiel magnétique périodique. On démontre à l’aide d’une construction de solutions particulières, dites solutions de type "optique géométrique", que le champ magnétique induit par le potentiel périodique est déterminé de façon stable à partir une infinité d’observat
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Lázaro, Heraclio Ledgar López [UNESP]. "Atratores pullback para equações parabólicas semilineares em domínios não cilíndricos." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/136350.

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Submitted by HERACLIO LEDGAR LÓPEZ LÁZARO null (herack_11@hotmail.com) on 2016-03-21T12:48:28Z No. of bitstreams: 1 Heracliodissertação.pdf: 1074830 bytes, checksum: eacc291c2e8f474bef30477ea2c47a2f (MD5)<br>Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-03-22T14:20:35Z (GMT) No. of bitstreams: 1 lazaro_hll_me_sjrp.pdf: 1074830 bytes, checksum: eacc291c2e8f474bef30477ea2c47a2f (MD5)<br>Made available in DSpace on 2016-03-22T14:20:35Z (GMT). No. of bitstreams: 1 lazaro_hll_me_sjrp.pdf: 1074830 bytes, checksum: eacc291c2e8f474bef30477
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SILVA, Luciano Cipriano da. "Observações sobre controle hierárquico em domínio não cilíndrico." Universidade Federal de Campina Grande, 2013. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1363.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-06T15:24:59Z No. of bitstreams: 1 LUCIANO CIPRIANO DA SILVA - DISSERTAÇÃO PPGMAT 2013..pdf: 1125916 bytes, checksum: d2b1ef64aa3ef95093acedfd0f7a711c (MD5)<br>Made available in DSpace on 2018-08-06T15:24:59Z (GMT). No. of bitstreams: 1 LUCIANO CIPRIANO DA SILVA - DISSERTAÇÃO PPGMAT 2013..pdf: 1125916 bytes, checksum: d2b1ef64aa3ef95093acedfd0f7a711c (MD5) Previous issue date: 2013-02<br>Capes<br>Neste trabalho estudamos o controle hierárquico, para um sistema parabólico, em um domínio não cilíndrico. O controle hierárqui
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Book chapters on the topic "Non-Cylindrical domains"

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Bögelein, Verena, Frank Duzaar, and Christoph Scheven. "Evolutionary Problems in Non-Cylindrical Domains." In Harnack Inequalities and Nonlinear Operators. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73778-8_3.

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"Boundary Control for Non-Autonomous Parabolic Equations in Non-Cylindrical Domains." In Boundary Control and Variation. CRC Press, 1994. http://dx.doi.org/10.1201/9781482277685-7.

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Conference papers on the topic "Non-Cylindrical domains"

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Nakatsuka, Yuki, Reima Iwatsu, Jae Min Hyun, and Hide S. Koyama. "Unsteady Vortex Breakdown Phenomena in an Enclosed Cylindrical Container With a Rotating Endwall Disk." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4751.

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Abstract A high-quality precision-controlled turntable apparatus was fabricated to probe the dynamic behavior of a viscous fluid contained in a cylindrical container. Vortex breakdown(s) produced by a rotating endwall disk was visualized by using a fluorescent dye injection technique, and its flow field was measured by using a particle image velocimetry. This flow is characterized by two non-dimensional parameters, i.e., the height-to-radius ratio H/R and the rotating Reynolds number Re = Ω2/v. Limiting boundaries for single, double and triple vortex breakdowns in steady flow were re-plotted t
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Rosetti, Guilherme F., Kazuo Nishimoto, and Jaap de Wilde. "Vortex-Induced Vibrations on Flexible Cylindrical Structures Coupled With Non-Linear Oscillators." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79022.

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The recent escalade of the oil prices encourages the search and exploration of new oil fields. This represents a challenge to engineers, due to more difficult conditions of operation in harsh environments and deeper reservoirs. The offshore industry faces, in the edge of technology with new necessities and limiting conditions imposed by the environment, an increase in the cost of production. It is, therefore, of vital importance to have the equipments operating at the most optimized conditions in order to reduce these costs. VIV software developed in the frequency domain was successful in desi
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Lizhi Cui. "Existence and controllability for a one-dimensional wave equation in a non-cylindrical domain." In 2014 11th World Congress on Intelligent Control and Automation (WCICA). IEEE, 2014. http://dx.doi.org/10.1109/wcica.2014.7052830.

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Hubbard, Carol, and Yong Se Kim. "Geometric Assistance for the Construction of Non-Polyhedral Solids From Orthographic Views." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/cie-4288.

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Abstract As the extensive use of solid models becomes widespread, it is important to have a mechanism by which existing engineering drawings can be converted into solid models. Therefore, a geometric assistant which can aid in the construction of solid models is beneficial. In this paper, we present key operations for a system called the Assistant for the Rapid Construction of Solids (ARCS), that provides this assistance given a set of two orthographic views. ARCS is based on the Visual Reasoning Tutor (VRT), a system we developed that provides users with the geometric framework to build polyh
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Korde, Umesh A., and R. Cengiz Ertekin. "Near-Optimal Time-Domain Control of Small Buoys in Irregular Waves." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24570.

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Within the linear theory framework, smooth optimal control for maximum energy conversion in irregular waves requires independent synthesis of two non-causal impulse response functions operating on the body oscillations near the free surface, and one non-causal impulse response function relating the exciting force to the incident wave profile at the body. Full cancellation of reactive forces and matching of radiation damping thus requires knowledge or estimation of device velocity into the future. As suggested in the literature, the control force can be synthesized in long-crested waves by suit
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Kim, Daejong, An Sung Lee, and Bum Seog Choi. "Evaluation of Foil Bearing Performance and Nonlinear Rotordynamics of 120kW Oil-Free Gas Turbine Generator." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95800.

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This paper presents design approach of air foil bearings (AFBs) for 120kWe gas turbine generator, which is a single spool configuration with gas generator turbine and alternator rotor connected by a diaphragm coupling. Total four radial AFBs support the two rotors, and one set of double acting thrust foil bearing is located inside the gas generator turbine. The rotor configuration results in eight degree of freedom (DOF) rotordynamic motions, which are two cylindrical modes and two conical modes from the two rotors. Stiffness of bump foils of candidate AFB was estimated from measured structura
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Liu, Wanhui, Daejong Kim, and Kai Feng. "Effect of Axial Force on Rotordynamics of a Rigid Rotor Supported by Foil Bearings." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76261.

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This paper investigates the effect of gas foil thrust bearing (GFTB) on the rotordynamic performance of the rotor-gas foil bearing (GFB) system. A rigid rotor supported on two gas foil journal bearings (GFJB) and a pair of GFTBs is studied using a five degree of freedom (5-DOF) model. The studies were performed in both frequency domain using excitation frequency-dependent bearing coefficients (modal analyses) and non-linear analyses (time domain orbit simulations). Modal analyses were performed for both symmetrically and asymmetrically supported rotor systems. For the symmetric rotor, the moda
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Archambault, J. L., S. Lacroix, and A. W. Snyder. "HE1m self-guided modes : vector solutions and stability." In Nonlinear Guided-Wave Phenomena. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/nlgwp.1991.tud4.

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Self-focusing in a medium of intensity-dependent refractive index has been extensively studied since the 60's. A particular case of self-focusing is the self-guided mode for which the natural tendency of a light beam to diffract is exactly compensated by the presence of a positive Kerr-law nonlinearity. A self-guided mode can also be seen as a mode of the waveguide it induces[1]. In this paper, we present a study of the HE1 m self-guided modes of circular cross-section in an ideal (homogeneous, non-saturable and without absorption) Kerr-law nonlinear medium. Although scalar theory predicts, wi
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Gonc¸alves de Lacerda, Thiago Aˆngelo, Gilberto Bruno Ellwanger, Marcos Queija de Siqueira, and Elizabeth Frauches Netto Siqueira. "Time Domain Methodology for Vortex-Induced Motion Analysis in Monocolumn Platform." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79806.

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The offshore oil exploration in Brazil has been, traditionally, made by semi-submersible and moored ship-based units. The need for more restricted wave-induced motions has demanded new conceptions of floating structures, in which the mono-column concept distinguishes itself. Due to its cylindrical shape hull, this floating unit could present a significant low frequency vibratory movement caused by the vortex shedding phenomenon. This kind of phenomenon on huge structures like platforms is usually known as VIM (Vortex Induced Motions). The main objective of this work is to evaluate a time domai
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Chalasani, N. R., and Miles Greiner. "Natural Convection/Radiation Heat Transfer Simulations of an Enclosed Array of Vertical Rods." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93734.

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Experiments performed by others measured the temperature of twelve heated vertical rods within a constant temperature, internally finned cylindrical enclosure. Measurements were performed for a range of air and helium pressures and a range of rod heat generation rates. In the current work, three-dimensional computational fluid dynamics simulations of natural convection and radiation heat transfer within this domain were conducted to benchmark the simulation techniques. These calculations accurately reproduced the local and average temperatures when the heat generation rate was sufficiently low
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