Academic literature on the topic 'Couple orbital de rotation'

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Journal articles on the topic "Couple orbital de rotation"

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Bolmont, E., F. Gallet, S. Mathis, C. Charbonnel, L. Amard, and Y. Alibert. "Tidal dissipation in rotating low-mass stars and implications for the orbital evolution of close-in massive planets." Astronomy & Astrophysics 604 (August 2017): A113. http://dx.doi.org/10.1051/0004-6361/201730662.

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Observations of hot-Jupiter exoplanets suggest that their orbital period distribution depends on the metallicity of the host stars. We investigate here whether the impact of the stellar metallicity on the evolution of the tidal dissipation inside the convective envelope of rotating stars and its resulting effect on the planetary migration might be a possible explanation for this observed statistical trend. We use a frequency-averaged tidal dissipation formalism coupled to an orbital evolution code and to rotating stellar evolution models in order to estimate the effect of a change of stellar m
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Pezzotti, C., P. Eggenberger, G. Buldgen, G. Meynet, V. Bourrier, and C. Mordasini. "Revisiting Kepler-444." Astronomy & Astrophysics 650 (June 2021): A108. http://dx.doi.org/10.1051/0004-6361/202039652.

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Context. Kepler-444 is one of the oldest planetary systems known thus far. Its peculiar configuration consisting of five sub-Earth-sized planets orbiting the companion to a binary stellar system makes its early history puzzling. Moreover, observations of HI-Lyα variations raise many questions about the potential presence of escaping atmospheres today. Aims. We aim to study the orbital evolution of Kepler-444-d and Kepler-444-e and the impact of atmospheric evaporation on Kepler-444-e. Methods. Rotating stellar models of Kepler-444-A were computed with the Geneva stellar evolution code and coup
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Vetrisano, Massimo, Camilla Colombo, and Massimiliano Vasile. "Asteroid rotation and orbit control via laser ablation." Advances in Space Research 57, no. 8 (2015): 1762–82. https://doi.org/10.1016/j.asr.2015.06.035.

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This paper presents an approach to control the rotational motion of an asteroid while a spacecraft is deflecting its trajectory through laser ablation. During the deflection, the proximity motion of the spacecraft is coupled with the orbital and rotational motion of the asteroid. The combination of the deflection acceleration, solar radiation pressure, gravity field and plume impingement will force the spacecraft to drift away from the asteroid. In turn, a variation of the motion of the spacecraft produces a change in the modulus and direction of the deflection action which modifies the rotati
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Daley, Thomas M., and Dale Cox. "Orbital vibrator seismic source for simultaneous P‐ and S‐wave crosswell acquisition." GEOPHYSICS 66, no. 5 (2001): 1471–80. http://dx.doi.org/10.1190/1.1487092.

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A recently developed borehole seismic source, the orbital vibrator, was successfully deployed in a crosswell survey in a fractured basalt aquifer. This seismic source uses a rotating eccentric mass to generate seismic energy. Source sweeps with clockwise and counter‐clockwise rotations are recorded at each source location. Because this source generates circularly polarized waves, unique processing algorithms are used to decompose the recordings into two equivalent linearly oscillating, orthogonally oriented seismic sources. The orbital vibrator therefore generates P‐ and S‐waves simultaneously
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Lindh, Grant D., Taylor J. Mach, and T. Daniel Crawford. "The optimized orbital coupled cluster doubles method and optical rotation." Chemical Physics 401 (June 2012): 125–29. http://dx.doi.org/10.1016/j.chemphys.2011.11.002.

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Li, Liang, and Yiqiu Mao. "On Dynamics of Double-Diffusive Convection in a Rotating Couple-Stress Fluid Layer." Mathematics 12, no. 7 (2024): 1017. http://dx.doi.org/10.3390/math12071017.

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The current article focuses on the examination of nonlinear instability and dynamic transitions in a double-diffusive rotating couple-stress fluid layer. The analysis was based on the newly developed dynamic transition theory by T. Ma and S. Wang. Through a comprehensive linear spectrum analysis and investigation of the principle of exchange of stability (PES) as the thermal Rayleigh number crosses a threshold, the nonlinear orbital changes during the transition were rigorously elucidated utilizing reduction methods. For both single real and complex eigenvalue crossings, local pitch-fork and H
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Yeomans, D. K. "Cometary Orbital Dynamics and Astrometry." International Astronomical Union Colloquium 116, no. 1 (1989): 3–17. http://dx.doi.org/10.1017/s0252921100109613.

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AbstractComets are the only large solar system bodies where nongravitational forces directly affect their dynamic motions. Their approach to within a few AU of the Sun initiates the vaporization of nucleus ices, and the resulting rocket-like effects either add to or subtract from the comet’s orbital energy; the sign of the energy change depends upon the comet’s rotation direction and its spin pole orientation. The cometary outgassing phenomena have generally been modeled by assuming a rapidly rotating nucleus of water ice that outgasses symmetrically with respect to perihelion. Although this n
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Gallet, F., E. Bolmont, J. Bouvier, S. Mathis, and C. Charbonnel. "Planetary tidal interactions and the rotational evolution of low-mass stars." Astronomy & Astrophysics 619 (November 2018): A80. http://dx.doi.org/10.1051/0004-6361/201833576.

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Context. The surface angular velocity evolution of low-mass stars is now globally understood and the main physical mechanisms involved in it are observationally quite constrained. However, while the general behaviour of these mechanisms is grasped, their theoretical description is still under ongoing work. This is the case, for instance, about the description of the physical process that extracts angular momentum from the radiative core, which could be described by several theoretical candidates. Additionally, recent observations showed anomalies in the rotation period distribution of open clu
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Felker, Peter M. "Nuclear-orbital/configuration-interaction study of coupled translation-rotation states in (H2)2@C70." Journal of Chemical Physics 138, no. 4 (2013): 044309. http://dx.doi.org/10.1063/1.4776262.

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Borre, C. C., D. Baade, A. Pigulski, et al. "Short-term variability and mass loss in Be stars." Astronomy & Astrophysics 635 (March 2020): A140. http://dx.doi.org/10.1051/0004-6361/201937062.

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Context. Be stars are physically complex systems that continue to challenge theory to understand their rapid rotation, complex variability, and decretion disks. γ Cassiopeiae (γ Cas) is one such star but is even more curious because of its unexplained hard thermal X-ray emission. Aims. We aim to examine the optical variability of γ Cas and thereby to shed more light on its puzzling behaviour. Methods. We analysed 321 archival Hα spectra from 2006 to 2017 to search for frequencies corresponding to the 203.5 day orbit of the companion. Space photometry from the SMEI satellite from 2003 to 2011 a
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Dissertations / Theses on the topic "Couple orbital de rotation"

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Guo, Zongxia. "Electrical and optical manipulation of exchange bias." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0204.

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L'expansion rapide en termes d'échelle et de complexité des dispositifs électroniques pour les applications d'apprentissage automatique et d'intelligence artificielle actuelles engendre une demande considérable en nouvelles architectures. L'industrie est activement à la recherche de nouvelle génération de mémoires et de stockage capables d'offrir vitesse, densité, et une meilleure efficacité énergétique. Les mémoires non volatile magnétorésistive (MRAM), dont les états magnétiques permettent de stocker l'information suscitent un intérêt grandissant. Jusqu'à présent la direction d'aimantation d
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Urbina, Iglesias Laura Sofia. "Guidance and robust control methods for the approach phase between two orbital vehicles with coupling between translational and rotational motions." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30086/document.

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Les techniques liées au vol en formation et aux opérations de proximité de satellites autonomes font partie des technologies opérationnelles spatiales les plus marquantes et les plus ambitieuses de ces dernières années. En particulier, cela nécessite la complète maitrise des phases de rendez-vous proche et de survol par un satellite actif avec un satellite, une station ou un débris passif. Le développement de systèmes GNC (Guidage Navigation Contrôle) associés performants et sûrs repose sur la connaissance d'un modèle dynamique réalisant un bon compromis entre faible complexité et prise en com
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Alli, Soklni-Sita. "Modélisation et optimisation sur cycle d'une génératrice doublement saillante faible vitesse de rotation pour hydrolienne." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT4002/document.

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Cette étude traite d’une machine doublement saillante à aimants permanents, utilisée en entraînement direct pour application hydrolienne. Dans un premier temps, différentes approches technologiques utilisées pour l’exploitation hydrolienne sont passées en revue. Ensuite, la génératrice est modélisée par approche circuit. Cette méthode permet de tenir compte de la saturation magnétique et de la variation d’entrefer, tout en offrant un compromis intéressant entre la précision des résultats et le temps de simulation. Le modèle de la DSPM est ensuite couplé avec son convertisseur. Un modèle thermi
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Szlabowicz, Wojciech. "Contribution au dimensionnement et à la réalisation d'actionneur piézoélectrique à rotation de mode fort couple pour applications aéronautiques." Toulouse, INPT, 2006. http://ethesis.inp-toulouse.fr/archive/00000337/.

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La présente recherche s’inscrit dans le cadre de travaux sur les Commandes de Vol de Futur (marché COVAN) de la société AIRBUS France. Si l’intérêt potentiel des moteurs piézoélectriques dans les applications avions de fortes puissance a été précédemment démontré, l’objectif général de l’étude est maintenant de concrétiser sur le plan applicatif l’introduction de cette technologie. L'étude porte donc sur la conception, la réalisation et la caractérisation d'un actionneur piézoélectrique à rotation de mode à double rotor, ainsi que de son alimentation électronique dédiée, en vue d'une applicati
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Szlabowicz, Wojciech Nogarède Bertrand Rouchon Jean-François. "Contribution au dimensionnement et à la réalisation d'actionneur piézoélectrique à rotation de mode fort couple pour applications aéronautiques." Toulouse : INP Toulouse, 2006. http://ethesis.inp-toulouse.fr/archive/00000337.

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Zhao, Hongming. "ETUDE EXPERIMENTALE DE LA PROPRIETE DE COUPLAGE SPIN-ORBITE DANS DES STRUCTURES SEMI-CONDUCTRICES DE BASSE DIMENSIONALITE." Phd thesis, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00595906.

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Nous avons étudié les propriétés optiques et le couplage spin-orbite dans différentes structures semi-conductrices de basse dimension. Tout d'abord, la dynamique de spin dans des gaz d'électrons bidimensionnels d'une hétérostructure GaAs/AlGaAs (001) a été étudiée par la technique de rotation Kerr résolue en temps. Les résultats montrent que la durée de vie du spin dans le plan du puits est anisotrope et que la densité des électrons affecte fortement le couplage spin-orbite de type Rashba. Nous avons observé ensuite une grande anisotropie du facteur g de l'électron dans des puits quantiques Ga
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Bony, Benjamin. "Orbital torques in transition metals using light metal cu oxides." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASP040.

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L'étude des courants de spin dans des matériaux à fort couplage spin-orbite (SOC) tels que les métaux de transition 5d, a donné naissance au champ de recherche du ‘spin-orbit torque' (SOT), utilisé pour la commutation des mémoires magnétiques de type SOT-MRAM. De récents travaux démontrent de fortes augmentations de l'efficacité du SOT grâce à une polarisation du moment magnétique orbital (Orbital Angular Momentum, OAM). La polarisation de l'OAM dans les solides est possible par effet Hall orbital (OHE) ou par l'effet Rashba-Edelstein orbital (ORE) aux interfaces, et ceci même en l'absence de
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Nelson, Michael R. Jr. "Ab initio molecular orbital studies: Rydberg states of H₄ barriers to internal rotation studies binding of CO₂ to carbonyl groups isoprene and ozone complexes." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/30278.

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Diemer, Franck. "Utilisation en rotation continue des instruments de préparation canalaire en nickel-titane : évaluation des contraintes." Toulouse 3, 2006. http://www.theses.fr/2006TOU30283.

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The first part of this work exposes a bibliographical synthesis about properties of memory-shape alloys and the characteristics of the small electric motors. The second part is experimental. We compared the resistance of instruments characterized by different profiles. We measured the differences induced by profile and pitch length on stresses generated by endodontic instrument used in continuous rotation. Then we try to evaluate the conditions of disengaging of different electric motors and contra-angles. We finally use, with a torque control motor, a file with the tip maintained in a screw-l
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Chegroun, Nouara. "Etude numérique des actions hydrodynamiques sur une sphère en translation et rotation dans la gamme des nombres de Reynolds inferieurs à 50." Vandoeuvre-les-Nancy, INPL, 1992. http://www.theses.fr/1992INPL122N.

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Dans le but de déterminer les coefficients de trainée, de portance et de couple d'une sphère animée d'un mouvement de translation et de rotation simultanées, on propose une résolution numérique des équations de Navier-Stokes au moyen d'une méthode de correction de pression appliquée à un maillage non uniforme construit sur des coordonnées sphériques. L'étude est limitée au régime stationnaire, dans le domaine des nombres de Reynolds inferieurs à 50, qui sont ceux que l'on rencontre le plus fréquemment en mécanique des suspensions. Les résultats obtenus apportent des informations originales, co
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Books on the topic "Couple orbital de rotation"

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Buglia, James J. Direct computation of orbital sunrise or sunset event parameters. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.

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Wigg, Alison. Molecular orbital studies of large molecules: Internal rotation in the monofluorobenaldehydes. University of Salford, 1989.

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Mann, Peter. Introductory Rotational Dynamics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198822370.003.0003.

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This chapter discusses the importance of circular motion and rotations, whose applications to chemical systems are plentiful. Circular motion is the book’s first example of a special case of motion using the laws developed in previous chapters. The chapter begins with the basic definitions of circular motion; as uniform rotation around a principle axis is much easier to consider, it is the focus of this chapter and is used to develop some key ideas. The chapter discusses angular displacement, angular velocity, angular momentum, torque, rigid bodies, orbital and spin momenta, inertia tensors an
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Eriksson, Olle, Anders Bergman, Lars Bergqvist, and Johan Hellsvik. Applications of Density Functional Theory. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198788669.003.0003.

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In this chapter we give examples of how density functional theory describes some of the most basic magnetic properties of a material. This involves spin and orbital moments, Heisenberg exchange parameters and magnetic form factors. Relativistic effects couple spin and orbital space and make magnetic materials anisotropic, which means that the ground state magnetization is oriented parallel or perpendicular to high symmetry directions of the crystalline structure. We also illustrate how well density functional theory describes cohesive properties and how magnetism influence these properties. Th
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Valenzuela, S. O. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787075.003.0011.

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This chapter begins with a definition of spin Hall effects, which are a group of phenomena that result from spin–orbit interaction. These phenomena link orbital motion to spin direction and act as a spin-dependent magnetic field. In its simplest form, an electrical current gives rise to a transverse spin current that induces spin accumulation at the boundaries of the sample, the direction of the spins being opposite at opposing boundaries. It can be intuitively understood by analogy with the Magnus effect, where a spinning ball in a fluid deviates from its straight path in a direction that dep
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Cao, Gang, and Lance DeLong. Physics of Spin-Orbit-Coupled Oxides. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780199602025.001.0001.

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Prior to 2010, most research on the physics and chemistry of transition metal oxides was dominated by compounds of the 3d-transition elements such as Cr, Mn, Fe, Co, Ni, and Cu. These materials exhibited novel, important phenomena that include giant magnetoresistance in manganites, as well as high-temperature superconductivity in doped La<sub>2</sub>CuO<sub>4</sub> and related cuprates. The discovery in 1994 of an exotic superconducting state in Sr<sub>2</sub>RuO<sub>4</sub> shifted some interest toward ruthenates. Moreover, the realization in 2008 that a novel variant of the classic Mott meta
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Book chapters on the topic "Couple orbital de rotation"

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Malament, David B. "On Relative Orbital Rotation in Relativity Theory." In Revisiting the Foundations of Relativistic Physics. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0111-3_8.

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Kéchichian, Jean Albert. "Effect of Atmospheric Drag Perturbation on Circular Orbits: Atmosphere Rotation Considerations." In Orbital Relative Motion and Terminal Rendezvous. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64657-8_5.

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Lainey, V., and A. Vienne. "Rotation of Natural Shaped Satellites and Their Orbital Motion." In Modern Celestial Mechanics: From Theory to Applications. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2304-6_31.

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Binder, Bernd. "Dynamic Localized Autonomous Chaotic Orbital Patterns from Rotation-Translation Sequences." In 14th Chaotic Modeling and Simulation International Conference. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96964-6_4.

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Fukushima, Kenji, and Shi Pu. "Relativistic Decomposition of the Orbital and the Spin Angular Momentum in Chiral Physics and Feynman’s Angular Momentum Paradox." In Strongly Interacting Matter under Rotation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71427-7_12.

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Maugin, Gérard A. "C: From “Capillarity” to “Couple Stress (in Medium with Constrained Rotation)”." In Advanced Structured Materials. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2434-4_4.

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Saboo, Arpana, Subrata Das, Soumyadeep Halder, and Sonjoy Majumder. "Spin-Orbit Coupled Rotating Spin-1 Bose-Einstein Condensates Under the Influence of External Magnetic Field." In Springer Proceedings in Physics. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-66874-6_25.

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Hussmann, Hauke, Gaël Choblet, Valéry Lainey, et al. "Implications of Rotation, Orbital States, Energy Sources, and Heat Transport for Internal Processes in Icy Satellites." In Satellites of the Outer Solar System. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7439-6_12.

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Bohra, Nafeesa, Hermann De Meer, and Aftab A. Memon. "Analysing the Orbital Movement and Trajectory of LEO (Low Earth Orbit) Satellite Relative to Earth Rotation." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04260-7_1.

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Gaustad, Edwin S. "The Nature of True--and Useful-Virtue: From Edwards to Franklin." In Benjamin Franizlin, Jonathan Edwards, And The Representation Of American Culture. Oxford University PressNew York, NY, 1993. http://dx.doi.org/10.1093/oso/9780195077759.003.0004.

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Abstract Perry Miller’s unhappiness over the misinterpretation of his “From Edwards to Emerson” essay (as though he had argued “in some mystical pretension ... for a direct line of intellectual descent”) should warn one against the particular grammatical construction of the subtitle. Miller at least had the advantage of a good deal more “from-ness,” one century to another, in moving between Edwards and Emerson than between Edwards (b. 1703) and Franklin (b. 1706). Yet Franklin’s longevity does allow for some chronological movement, though of course the interest here is more than temporal traci
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Conference papers on the topic "Couple orbital de rotation"

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Zhou, Lei-Ming, Zong-Qiang Tao, Wan Sun, et al. "Orbital rotation of nanoparticles in a single Gaussian beam driven by converted orbital angular momentum." In Nano-optoelectronics and Micro/Nano-photonics X, edited by Shaoliang Yu, Zhiping Zhou, and Kazumi Wada. SPIE, 2024. http://dx.doi.org/10.1117/12.3035706.

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Mansuripur, Masud. "Rotational symmetry of space, rotation operators, conservation laws, and spin and orbital angular momenta in quantum mechanics." In Spintronics XVII, edited by Henri Jaffrès, Jean-Eric Wegrowe, Manijeh Razeghi, and Joseph S. Friedman. SPIE, 2024. http://dx.doi.org/10.1117/12.3028583.

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Mamczura, Piotr, and Dawid Pekala. "SUSTAINABLE AEROSPACE PROPULSION: THE SPINLOOP ROTARY ACCELERATOR WITH MAGNETIC LEVITATION FOR LOW EARTH ORBIT VEHICLE DEPLOYMENT." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s28.67.

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The main goal of this work is to present the SpinLoop Rotational Accelerator project as a preliminary module for accelerating space rockets destined for low Earth orbit. By uti-lizing magnetic levitation technology, which is also used in modern high-speed rail sys-tems (including the thriving Hyperloop technology), it will be possible to design a device that imparts high velocity to the rocket immediately upon launch. This would reduce the amount of fuel the spacecraft would need, thereby decreasing its dimensions and con-struction costs. During the acceleration phase, the rocket would be posi
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Maråk, Rasmus, Emmanuel Blazquez, and Pablo Gómez. "Trajectory Optimization of a Swarm Orbiting 67P/Churyumov-Gerasimenko Maximising Gravitational Signal." In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-057.

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Proper modelling of the gravitational fields of irregular asteroids and comets is an essential yet difficult part of any spacecraft visit and flyby to these bodies. Accurate density representations provide crucial information, e.g., for proximity operations of spacecraft near such bodies which rely heavily on it to design safe and efficient trajectories. [2] Recently, so-called neural density fields [1] have emerged as a versatile tool that can provide an accurate description of the density distribution of a body’s mass, internal and external shape with few prior requirements. This representat
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Valverde, J., J. L. Escalona, J. Domi´nguez, and E. Freire. "Stability and Dynamic Analysis of the SET (Short Electrodynamic Tether)." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48323.

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Space-tethers are very slender and flexible structures that are deployed in space. In recent times space-tethers have been the object of numerous studies in the field of astronautics. One of such structures is the SET (Short Electrodynamic Tether). The distinguishing characteristic of the SET is that it orbits with the axis of smallest moment of inertia normal to the orbit plane. The SET is in continuous rotation around this same axis, which allows it to maintain the aforementioned operating position. In most other cases, space-tethers orbit within the orbit plane. The SET is not perfectly str
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Afanasjev, V. V. "Soliton polarization rotation in fiber lasers." In Nonlinear Guided Waves and Their Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/nlgw.1995.nfa4.

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Over the past few years there has been considerable research undertaken into the problem of soliton propagation in birefringent fibers [1-5]. It was found that solitons are stable against birefringence, i.e. soliton polarization components couple through cross-phase modulation and the two-component (vector) soliton propagates as a single unit [1]. Vector solitons have been observed numerically [1, 2, 4] and experimentally [3, 5].
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Haselsteiner, Andreas F., Aljoscha Sander, and Klaus-Dieter Thoben. "A Three Degrees of Freedom Vibration Model for a Partially Installed Wind Turbine." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-79081.

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Abstract Most offshore wind turbines are installed using the so-called single blade installation procedure. This means that after the tower, nacelle, and hub are installed, the rotor blades are mounted individually. This process step is difficult and sometimes leads to delays because relative motions between the hub and rotor blade need to be small and predictable to enable the successful mounting of the blade. Previously published measurements showed that the tower vibrates in a motion where the nacelle moves in “orbits” that often change shape and axis direction. In this work, we present a s
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Huang, Lu, Yunfeng Jin, and Yuqiang Jiang. "Ultrafast orbital rotation in optical trapping with a femtosecond laser." In Optical Trapping Applications. OSA, 2017. http://dx.doi.org/10.1364/ota.2017.ots1d.5.

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Anderson, Alexander Q., Elizabeth F. Strong, Sean C. Coburn, Gregory B. Rieker, and Juliet T. Gopinath. "Dual Comb Ranging and Rotation Sensing with Orbital Angular Momentum." In CLEO: Science and Innovations. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_si.2022.sf2f.4.

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We demonstrate a dual comb ranging system capable of simultaneously measuring the distance to a target and the transverse rotation rate of the target by preparing the probe comb with orbital angular momentum.
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Matloff, Gregory L. "The Holographic Solar Photon Thruster (SPT) : A Low-Earth Orbit Solar Sail." In ASME 2003 International Solar Energy Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/isec2003-44059.

Full text
Abstract:
Atmospheric drag limits most solar sails to altitudes&gt;1000 km. A two-sail variant, the Solar-Photon Thruster (SPT) , could be used in Low-Earth Orbit (LEO). An SPT has a fixed-orientation collector sail that focuses light against a smaller, adjustable thruster sail. Maintaining the collector surface parallel to the Earth minimizes SPT drag in LEO. To minimize solar-radiation back pressure towards Earth, the upper collector surface is non-reflective. The reflective lower collector surface directs light reflected and reradiated from the Earth against the thruster. Thruster orientation is adju
APA, Harvard, Vancouver, ISO, and other styles
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