Academic literature on the topic 'Marches de rotors'

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Journal articles on the topic "Marches de rotors"

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Boletis, E., and C. H. Sieverding. "Experimental Study of the Three-Dimensional Flow Field in a Turbine Stator Preceded by a Full Stage." Journal of Turbomachinery 113, no. 1 (1991): 1–9. http://dx.doi.org/10.1115/1.2927733.

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The paper describes the experimental investigation of the three-dimensional flow field through a low aspect ratio, high turning turbine stator preceded by a full stage. This configuration simulates as closely as possible the flow conditions for an intermediate stator in a multistage machine, although the use of cylindrical rotor blades does not reflect typical gas turbine design practice. The inlet conditions to the stator are significantly different from those reported in previous investigations dealing with tests in isolated cascades, e.g., Sieverding (1985); Marchal and Sieverding (1977); S
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You, Young H., Deokhwan Na, and Sung N. Jung. "Data Transfer Schemes in Rotorcraft Fluid-Structure Interaction Predictions." International Journal of Aerospace Engineering 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/3426237.

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For a CFD (computation fluid dynamics)/CSD (computational structural dynamics) coupling, appropriate data exchange strategy is required for the successful operation of the coupling computation, due to fundamental differences between CFD and CSD analyses. This study aims at evaluating various data transfer schemes of a loose CFD/CSD coupling algorithm to validate the higher harmonic control aeroacoustic rotor test (HART) data in descending flight. Three different data transfer methods in relation to the time domain airloads are considered. The first (method 1) uses random data selection matched
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Moscatelli, Alberto. "Molecular rotors en marche." Nature Nanotechnology, August 4, 2017. http://dx.doi.org/10.1038/nnano.2017.174.

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Singh, Atinder Pal, and P. S. Ghoshdastidar. "Computer Simulation of Heat Transfer in Alumina and Cement Rotary Kilns." Journal of Thermal Science and Engineering Applications 14, no. 3 (2021). http://dx.doi.org/10.1115/1.4051376.

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Abstract This paper presents computer simulation of heat transfer in alumina and cement rotary kilns. The model incorporates radiation exchange among solids, wall, and gas, convective heat transfer from the gas to the wall and the solids, contact heat transfer between the covered wall and solids, and heat loss to the surrounding as well as chemical reactions. The mass and energy balances of gas and solids have been performed in each axial segment of the kilns. The energy equation for the wall is solved numerically by the finite-difference method. The dust entrainment in the gas is also account
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Dissertations / Theses on the topic "Marches de rotors"

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Duhaze-Pradines, Loric. "Reachability problems for general rotor walks in graphs." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG051.

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Nous nous intéressons dans cette thèse aux propriétés algorithmiques d'un automate cellulaire, les marches de rotors. Ce modèle a été introduit de deux manières différentes. Tout d'abord comme une opération élémentaire d'un autre automate cellulaire : les Sandpiles qui modélisent l'effondrement d'une pile de sable lorsque celle-ci devient trop haute. Mais également, par sa ressemblance avec des modèles stochastiques très étudiés que sont les marches aléatoires. En effet, de nombreuses propriétés structurelles des marches aléatoires (temps d'atteinte, temps de couverture, etc...) sont similaire
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Maier, Marcel [Verfasser]. "Betrieb einer elektrisch erregten Synchronmaschine mittels kontaktloser, induktiver Energieübertragung auf den Rotor / Marcel Maier." Düren : Shaker, 2020. http://d-nb.info/1213471621/34.

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Pajak, Dominik. "Algorithms for Deterministic Parallel Graph Exploration." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2014. http://tel.archives-ouvertes.fr/tel-01064992.

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Nous étudions dans cette thèse le problème de l'exploration parallèle d'un graphe à l'aide des multiples, synchronisés et mobiles agents. Chaque agent est une entité individuelle qui peut, indépendamment des autres agents, visitez les sommets du graphe ou parcourir ses arêtes. Le but de ensemble des agents est de visiter tous les sommets de graphe. Nous étudions d'abord l'exploration du graphe dans un modèle où chaque agent est équipé de mémoire interne, mais les nœuds n'ont pas de mémoire. Dans ce modèle les agents sont autorisés à communiquer entre eux en échangeant des messages. Nous présen
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Cunha, Carla Maria Santana Duarte Correia da. "Minimização do número de más viragens na recolha de resíduos sólidos urbanos." Master's thesis, Instituto Superior de Economia e Gestão, 2001. http://hdl.handle.net/10400.5/18825.

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Mestrado em Matemática Aplicada à Economia e à Gestão<br>O problema da determinação de percursos a efectuar por veículos afectos à remoção de resíduos sólidos urbanos pode ser visto como um problema de optimização de rotas, com procura nos arcos e restrições adicionais. Usualmente os algoritmos para determinar soluções admissíveis para este tipo de problemas não têm em conta o tipo de viragem que os veículos são obrigados a fazer. Dadas as características dos veículos envolvidos na recolha de resíduos, entende-se por má viragem uma inversão de marcha ou uma viragem à esquerda. Na p
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Lancial, Nicolas. "Effets de la rotation sur la dynamique des écoulements et des transferts thermiques dans les machines électriques tournantes de grande taille." Thesis, Valenciennes, 2014. http://www.theses.fr/2014VALE0021/document.

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EDF exploite sur son parc de production de nombreuses machines électriques tournantes. Les contraintes thermiques subies par celles-ci engendrent des échauffements locaux qui nuisent à leur intégrité. Le présent travail contribue à fournir des méthodes de calcul adaptées à la détection et à la localisation des points chauds. Il participe à améliorer la compréhension des écoulements en rotation et leurs effets sur les transferts thermiques. Plusieurs dispositifs expérimentaux, de complexité ascendante, ont été utilisés pour comprendre et valider les simulations numériques. Une première étude su
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Books on the topic "Marches de rotors"

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Valli, Valentina, Natalia Ailén Carod, Germán Andrés Casella, Jorgelina Araceli Sciorra, and Gustavo Mario Radice, eds. Actas I JoBUIFA Jornadas de Becarixs de Unidades de Investigación FdA. Instituto de Historia del Arte Argentino y Americano (IHAAA), 2020. http://dx.doi.org/10.35537/10915/155902.

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Estas primeras Jornadas son una de las tantas experiencias institucionales para pensar el trabajo de la investigación de manera colectiva y colaborativa. Un largo camino se ha recorrido en el área de investigación en artes, y uno de los resultados de dicho recorrido es la respuesta a las convocatorias que se realizan anularmente desde la UNLP para acceder al sistema de becas de posgrado (maestría, doctorado y posdoctorado), así como las Becas de Estímulo a las Vocaciones Científicas (EVC-CIN) para estudiantes de grado que deseen iniciar su formación en investigación. Es gracias a la difusión y
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Book chapters on the topic "Marches de rotors"

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"Note on References and Abbreviations." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-002.

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"Index." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-011.

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"4: “Ein Mann sucht sein Vaterland”?: Die Kapuzinergruft and the Confrontation with History." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-007.

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"Acknowledgments." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-001.

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"Contents." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-toc.

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"2: “Die Welt ist irrsinnig”: The Early Novels: Das Spinnennetz, Hotel Savoy, Die Rebellion." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-005.

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"3: “. . . in Wahrheit . . . umgewandelte Realität”: Radetzkymarsch as Historical Novel." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-006.

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"Conclusion." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-008.

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"Frontmatter." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-fm.

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"1: “Hinter dem Zaun”: Identity and Ideology." In Joseph Roth's March into History. Boydell and Brewer, 2008. http://dx.doi.org/10.1515/9781571138019-004.

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Conference papers on the topic "Marches de rotors"

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Michelassi, V., P. Adami, and F. Martelli. "An Implicit Algorithm for Stator-Rotor Interaction Analysis." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-068.

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A simple time-accurate algorithm is presented for the computation of the unsteady stator-rotor interaction. The algorithm is based on the scalar approximate factorization method originally developed for the computation of complex three-dimensional steady flows. The method introduces a physical time step, used to march in time, and a numerical time step to iterate in between physical time steps. The method is formulated so as to take full advantage of the implicit formulation and provide an implicit treatment of the unsteady terms. A set of preliminary tests on a turbine stage, still in the exp
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Corral, Roque, and Juan Manuel Gallardo. "Verification of the Vibration Amplitude Prediction of Self-Excited LPT Rotor Blades Using a Fully Coupled Time-Domain Non-Linear Method and Experimental Data." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-51416.

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The vibration level of aerodynamically unstable low-pressure-turbine rotor blades has been assessed for the first time using two-different approaches. Both methods assume that the aerodynamic forcing is due solely to the self-excitation of the airfoil and that the vibration amplitude is saturated due to the non-linearity associated to the fir-tree dry friction, which is modeled using a simplified approach. To compensate for the limitations of the friction model several hypotheses need to be done, among them, the geometric similarity of the different configurations and that the aspect ratio of
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Fukuda, M., T. Yoshida, A. Iseda, et al. "700°C A-USC Technology Development in Japan." In AM-EPRI 2016, edited by J. Parker, J. Shingledecker, and J. Siefert. ASM International, 2016. http://dx.doi.org/10.31399/asm.cp.am-epri-2016p0012.

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Abstract Since 2008, Japanese boiler, turbine and valve manufacturers, research institutes and utility companies have been working together to develop 700V A·USC technology, with support from the Japanese government. The key areas of discussion are technology development of high temperature materials such as nickel-based alloys and advanced 9Cr steels, and their application to actual power plants. At the EPRI conference in 2013, our report mainly focused on the development of fundamental material and manufacturing technology during the first five years of the project, and the preparation statu
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BA, Samba, Jinsoo Kim, Prateek Goel, et al. "Expanding Downlink Capabilities Using Autonomous Directional Drilling with Rotary Steerable Systems." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211067-ms.

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Abstract Directional drilling is a major activity in today's oil and gas industry, as most wells currently being drilled are directional wells. The complexity of the wells being drilled today creates the greatest risk and most promising scenarios for proper planning and implementation. The Autonomous Directional Drilling system includes an automated directional drilling advisor application that provides real-time working trajectories updates, steering recommendations, and downlink commands for rotary steerable system (RSS) tools. This DD Advisor system can be used in any type of well from star
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Thys, Maxime, Valentin Chabaud, Thomas Sauder, Lene Eliassen, Lars O. Sæther, and Øyvind B. Magnussen. "Real-Time Hybrid Model Testing of a Semi-Submersible 10MW Floating Wind Turbine and Advances in the Test Method." In ASME 2018 1st International Offshore Wind Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/iowtc2018-1081.

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This article presents the Real-Time Hybrid Model (ReaTHM®) tests that were performed on a 10-MW semi-submersible floating wind turbine in the Ocean Basin at SINTEF Ocean in March 2018. The ReaTHM test method was used for the model tests to circumvent the limitations encountered when performing model tests with wind and waves. The physical model was subject to physical waves, while the rotor and tower loads were simulated in real-time and applied on the model by use of a cable-driven parallel robot. Recent advances in the ReaTHM test method allowed for extended testing possibilities and load ap
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Scalzo, A. J., R. L. Bannister, M. DeCorso, and G. S. Howard. "Evolution of Heavy-Duty Power Generation and Industrial Combustion Turbines in the United States." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-488.

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This paper reviews the evolution of heavy-duty power generation and industrial combustion turbines in the United States from a Westinghouse Electric Corporation perspective. Westinghouse combustion turbine genealogy began in March of 1943 when the first wholly American designed and manufactured jet engine went on test in Philadelphia, and continues today in Orlando, Florida with the 160 MW, 501F Advanced Combustion Turbine. In this paper, advances in thermodynamics, materials, cooling, and unit size will be described. Many basic design features such as two-bearing rotor, cold-end drive, can-an
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Tanaka, Koichi, Makoto Yoshida, Toshifumi Kubo, Hirofumi Terazono, and Sazo Tsuruzono. "Development and Evaluation of Ceramic Components for Small Gas Turbine Engine." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0531.

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The 300kW class CGT project in Japan administered by the New Energy and Industrial Technology Development Organization (NEDO) under the sponsorship of the Ministry of International Trade and Industry (MITI) was completed in March, 1999 after 11 years. The purposes of the project were energy conservation and environmental protection. The CGT302 group of the CGT project, in cooperation with Kawasaki Heavy Industries, Ltd. (KHI), achieved all of the project targets. The targets included the turbine inlet temperature (TIT) of 1350°C, a thermal efficiency of 42%, emissions below 70ppm, and a 1000hr
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Kidwell, J. R., and D. M. Kreiner. "AGT 101: Advanced Gas Turbine Technology Update." In ASME 1985 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-gt-177.

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The Garrett/Ford AGT101 program has made significant progress during 1984 in ceramic component and engine test bed development, including initial ceramic engine testing. All ceramic components for the AGT101 [1644K (2500F)] engine are now undergoing development. Ceramic structures have been undergoing extensive analysis, design modification, and rig testing. AGT101 [1644K (2500F)] start capability has been demonstrated in rig tests. Also, 1644K (2500F) steady-state testing has been initiated in the test rigs to obtain a better understanding of ceramics in that environment. The ceramic turbine
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Regnier, Bradley, Joel Baden, Albert Brand, Patrick Lindauer, Joshua O'Neil, and John Schillings. "Cold Weather Testing of the Bell 525 Relentless." In Vertical Flight Society 76th Annual Forum & Technology Display. The Vertical Flight Society, 2020. http://dx.doi.org/10.4050/f-0076-2020-16362.

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In the winter months of January-March 2019, two Bell 525 test aircraft completed cold weather testing at Yellowknife Canada, some 1900 nm from Bell’s Flight Research Center in Arlington, TX. Testing was aimed at demonstrating aircraft stability, performance, and flight characteristics at extreme temperatures as required by CFR Part 29. Since regulations only permit limited temperature extrapolation, the cold temperature tests must include the limit of forward speed in a dive (VNE), and assessments of performance, controllability, autorotation, and static stability. This paper describes some of
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Kosing, O. E., R. Scharl, and H. J. Schmuhl. "Design Improvements of the EJ 200 HP Compressor: From Design Verification Engine to a Future All Blisk Version." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0283.

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The EJ 200 engine powers the Eurofighter / Typhon combat aircraft and is being built by the four nations UK (RR), Germany (MTU), Italy (FIAT AVIO) and Spain (ITP). The engine is capable of 60 kN dry thrust and 90kN reheat thrust with a 15% built in growth potential. The specific thrust to weight ratio is ≈ 10 and the overall pressure ratio 26. MTU’s 33% work - share package contains the development of the three stage LP Compressor, the five stage HP Compressor and the Digital Engine Control Unit. This paper concentrates on the five stage axial HP Compressor. It describes the major design chang
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Reports on the topic "Marches de rotors"

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Malcolm, D. J., and A. C. Hansen. WindPACT Turbine Rotor Design, Specific Rating Study; Period of Performance: June 29, 2000--March 1, 2003. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/15005921.

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Cobb, J. T. Jr. Coal desulfurization in a rotary kiln combustor. Final report, March 15, 1990--July 31, 1991. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10110381.

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Collins, Matthew, John Jorgensen, and Keely Murdock. Integrated Status and Effectiveness Monitoring Program, Entiat River Status and Trend Snorkel Surveys and Rotary Smolt Trap Operations in Nason Creek, March 2007 through March 2008. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/941527.

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Johnson, Peter N., and Michael D. Rayton. Enumeration of Juvenile Salmonids in the Okanogan Basin Using Rotary Screw Traps, Performance Period: March 15, 2006 - July 15, 2006. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/947613.

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Donoghue, E. M., G. L. Benson, and J. L. Chamberlain. Sustainable production of wood and non-wood forest products: Proceedings of IUFRO Division 5 Research Groups 5.11 and 5.12, Rotorua, New Zealand, March 11–15, 2003. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2004. http://dx.doi.org/10.2737/pnw-gtr-604.

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