Academic literature on the topic 'Ultra fast vortex dynamics'

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Journal articles on the topic "Ultra fast vortex dynamics"

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Acremann, Yves. "Magnetization dynamics: ultra-fast and ultra-small." Comptes Rendus Physique 9, no. 5-6 (2008): 585–94. http://dx.doi.org/10.1016/j.crhy.2007.05.017.

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Rückriem, R., T. Schrefl, and M. Albrecht. "Ultra-fast magnetic vortex core reversal by a local field pulse." Applied Physics Letters 104, no. 5 (2014): 052414. http://dx.doi.org/10.1063/1.4864275.

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Höllinger, R., A. Killinger, and U. Krey. "Statics and fast dynamics of nanomagnets with vortex structure." Journal of Magnetism and Magnetic Materials 261, no. 1-2 (2003): 178–89. http://dx.doi.org/10.1016/s0304-8853(02)01471-3.

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Wilamowski, Z., R. Buczko, G. Karczewski, and W. Jantsch. "Ultra-Fast Spin Dynamics in Diluted Magnetic Semiconductors." Acta Physica Polonica A 90, no. 5 (1996): 969–72. http://dx.doi.org/10.12693/aphyspola.90.969.

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Virgili, T., D. Coles, A. M. Adawi, et al. "Ultra-fast polariton dynamics in an organic microcavity." EPJ Web of Conferences 41 (2013): 04015. http://dx.doi.org/10.1051/epjconf/20134104015.

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Aalberts, D. P., F. L. J. Vos, and W. van Saarloos. "Towards understanding the ultra-fast dynamics of rhodopsin." Pure and Applied Chemistry 69, no. 10 (1997): 2099–104. http://dx.doi.org/10.1351/pac199769102099.

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Salas, Letty, Derek Mendez, José Domingo Meza-Aguilar, et al. "Study of Ultra-Fast Rhodopsin Activation Dynamics with Molecular Dynamics Simulations." Biophysical Journal 116, no. 3 (2019): 205a. http://dx.doi.org/10.1016/j.bpj.2018.11.1131.

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REZNIK, G. M., та R. GRIMSHAW. "Ageostrophic dynamics of an intense localized vortex on a β-plane". Journal of Fluid Mechanics 443 (25 вересня 2001): 351–76. http://dx.doi.org/10.1017/s0022112001005468.

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We consider the non-stationary dynamics of an intense localized vortex on a β-plane using a shallow-water model. An asymptotic theory for a vortex with piecewise-continuous potential vorticity is developed assuming the Rossby number to be small and the free surface elevation to be small but finite. Analogously to the well-known quasi-geostrophic model, the vortex translation is produced by a secondary dipole circulation (β-gyres) developed in the vortex vicinity and consisting of two parts. The first part (geostrophic β-gyres) coincides with the β-gyres in the geostrophic model, and the second
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Johansson, Fredrik O. L., Ute B. Cappel, Mattis Fondell, et al. "Tailoring ultra-fast charge transfer in MoS2." Physical Chemistry Chemical Physics 22, no. 18 (2020): 10335–42. http://dx.doi.org/10.1039/d0cp00857e.

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Charge transfer dynamics are of importance in functional materials used in devices. This property is morphology dependent in MoS<sub>2</sub>. Compared to a single crystal it is faster in a nanoparticle sample and even faster for a MoS<sub>2</sub> graphene oxide composite.
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Ivanov, B. A., G. G. Avanesyan, A. V. Khvalkovskiy, N. E. Kulagin, C. E. Zaspel, and K. A. Zvezdin. "Non-Newtonian dynamics of the fast motion of a magnetic vortex." JETP Letters 91, no. 4 (2010): 178–82. http://dx.doi.org/10.1134/s0021364010040041.

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Dissertations / Theses on the topic "Ultra fast vortex dynamics"

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Persson, Milton. "Transient Dynamics and Core Tunneling in Vertical Spin-Vortex Pairs." Thesis, KTH, Nanostrukturfysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-242225.

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Spin-vortices in vertically spaced pairs of thin elliptical Permalloy nanoparticles are investigated. The two vortex cores with parallel out-of-plane magnetization exhibit a strong monopole-like attraction through the spacer much thinner than the core length, thus forming a bound core-core pair. The material of the spacer is designed to suppress both direct and indirect exchange interactions, so the remaining inter-vortex coupling is purely dipolar. In the investigated vortex pairs, the in-plane magnetization in the vortex periphery, outside the vortex cores, curl in opposite directions (have
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Dimian, Mihai. "Nonlinear spin dynamics and ultra-fast precessional switching." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2426.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Electrical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Zhao, Kun. "Ultra-fast dynamics of small molecules in strong fields." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3444.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Chemical Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Álvarez, Sánchez Miguel. "Dynamics of an ultra-fast Thomson actuated HVDC breaker." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209587.

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High Voltage Direct Current (HVDC) is a rapidly growing form of power transmission that offers advantages with respect to conventional AC networks. One of the key elements that will allow the generalization of the HVDC grids is the Circuit Breaker (CB), which has to interrupt high DC currents in extremely short times. The use of a Thomson coil (TC) to generate high driving forces is being considered as a suitable working principle for the mechanical actuator inside the CB. This thesis presents the design of a concept of a mechanical actuator based on the Thomson coil for SCiBreak AB, a company
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Gordon, R. "Investigating the ultra-fast dynamics of semiconductor lasers by optical pulse injection techniques." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599528.

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Resonant injection of sub-picosecond optical pulses were explored as an ultra-fast analogue to injection locking, to influence the phase of the semiconductor laser on short time-scales. This allowed for efficiently altering the absolute phase of the lasing modes (without exciting new modes to lase) and produced mode interference beating; both demonstrated in vertical cavity surface emitting lasers (VCSELs). The ultra-fast optical sampling was extended to resolve polarization degrees of freedom, showing the nonlinear coupling between transverse modes through the charge carriers. Phase-sensitive
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Rey, Pereira Héctor Francisco. "Ultra-fast dynamics in multi-electron systems using time-dependent R-matrix theory." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.696164.

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The central topic of this thesis is the application of the R-matrix with time dependence (RMT) approach to describe the interaction of intense ultra-short laser pulses with general multi-electron atomic systems (specifically helium and carbon). The physical phenomena investigated in this thesis include above-threshold ionization, multiphoton ionization and inner-shell ionization. The RMT codes were first employed to investigate angular distributions of photoelectrons in two-colour two-photon above threshold ionization of helium as a testing ground for the codes. The calculated angular anisotro
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Lee, Jonghee. "Low temperature scanning tunneling microscope development: investigations of Au(111) and ultra-slow vortex dynamics of NbSe2." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7767.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Cörlin, Philipp [Verfasser], and Robert [Akademischer Betreuer] Moshammer. "Tracing ultra-fast molecular dynamics in O_2^+ and N_2^+ with XUV–IR pump–probe experiments / Philipp Cörlin ; Betreuer: Robert Moshammer." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180502361/34.

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Le, Marchand Tanguy. "Protein Dynamics by Solid-State NMR with Ultra-Fast Magic-Angle Spinning : from Microcrystals to Amyloid Fibrils and Membrane Proteins." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEN023/document.

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La Résonance Magnétique Nucléaire (RMN) à l’état solide avec rotation à l’angle magique (MAS) est une technique de choix pour l’étude de la structure et de la dynamique de molécules biologiques peu ou non solubles. Un grand nombre d’approches ont été développées pour la reconstitution de structures tridimensionelles à partir de mesures précises de proximités internucléaires, ainsi que pour la détection de mouvements moléculaires avec une résolution atomique sur des échelles de temps couvrant plusieurs ordres de grandeur. Malgré d’impressionnants progrès, les études par RMN MAS sont cependant l
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Radue, Elizabeth Lee. "Study of Variations of the Dynamics of the Metal-Insulator Transition of Thin Films of Vanadium Dioxide with An Ultra-Fast Laser." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1477068473.

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Vanadium dioxide is an intensely studied material, since it goes through an insulator-metal transition at a critical temperature just above room temperature at 340~K. The dramatic change in conductivity and the easily accessible transition temperature makes it an attractive material for novel technologies. Thin films of VO2 have a reversible transition without any significant degradation in contrast, and depending on the microstructure of the films, the properties of the transition are tunable. In this work, I study the dynamics of the insulator-transition in thin films grown on different subs
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Book chapters on the topic "Ultra fast vortex dynamics"

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Greaves, Simon J. "Ultra-Fast Dynamics for Heat-Assisted Magnetic Recording." In Handbook of Materials Modeling. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-50257-1_106-1.

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Greaves, Simon J. "Ultra-fast Dynamics for Heat-Assisted Magnetic Recording." In Handbook of Materials Modeling. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-44680-6_106.

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Rosin, David P. "Ultra-Fast Physical Generation of Random Numbers Using Hybrid Boolean Networks." In Dynamics of Complex Autonomous Boolean Networks. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13578-6_5.

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Miyamoto, Yoshiyuki. "Ultra-Fast Dynamics in Nanocarbon Explored by TDDFT-MD Simulations." In Frontiers of Computational Science. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-46375-7_14.

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Schöffler, M. S., L. Ph H. Schmidt, S. Eckart, et al. "Ultra-fast Dynamics in Quantum Systems Revealed by Particle Motion as Clock." In Molecular Beams in Physics and Chemistry. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63963-1_17.

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AbstractTo explore ultra-fast dynamics in quantum systems one needs detection schemes which allow time measurements in the attosecond regime. During the recent decades, the pump &amp; probe two-pulse laser technique has provided milestone results on ultra-fast dynamics with femto- and attosecond time resolution. Today this technique is applied in many laboratories around the globe, since complete pump &amp; probe systems are commercially available. It is, however, less known or even forgotten that ultra-fast dynamics has been investigated several decades earlier even with zeptosecond resolution in ion-atom collision processes. A few of such historic experiments, are presented here, where the particle motion (due to its very fast velocity) was used as chronometer to determine ultra-short time delays in quantum reaction processes. Finally, an outlook is given when in near future relativistic heavy ion beams are available which allow a novel kind of “pump &amp; probe” experiments on molecular systems with a few zeptosecond resolution. However, such experiments are only feasible if the complete many-particle fragmentation process can be imaged with high momentum resolution by state-of-the-art multi-particle coincidence technique.
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Collados, María-Victoria, Iñigo J. Sola, Julia Marín-Sáez, Warein Holgado, and Jesús Atencia. "Holographic Optical Elements to Generate Achromatic Vortices with Ultra-Short and Ultra-Intense Laser Pulses." In Vortex Dynamics and Optical Vortices. InTech, 2017. http://dx.doi.org/10.5772/66314.

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Verhelst, Nick, and Jacques Tempere. "Vortex Structures in Ultra-Cold Atomic Gases." In Vortex Dynamics and Optical Vortices. InTech, 2017. http://dx.doi.org/10.5772/67121.

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Zhang, Y. Z., and Y. H. Jiang. "Imaging Ultra-fast Molecular Dynamics in Free Electron Laser Field." In Advances of Atoms and Molecules in Strong Laser Fields. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814696395_0008.

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Yehia Zakaria, Mohamed. "Unsteady Aerodynamics of Highly Maneuvering Flyers." In Biomimetics. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94231.

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In this chapter, a set of analytical aerodynamic models, based on potential flow, that can be used to predict the unsteady lift response during pitching maneuvers are presented and assessed. The result examines the unsteady lift coefficients experienced by a flat plate in high-amplitude pitch ramp motion. The pitch ramps are chosen based on two ramp pitch maneuvers of a maximum amplitudes of 25 and 45 degrees starting from zero degree. The aim is investigate the use of such classical models in predicting the lift dynamics compared to a full physical-based model. Among all classical methods used, the unsteady vortex lattice method (without considering the leading edge vortex) is found to be a very good predictor of the motion lift dynamic response for the 25 ° ramp angle case. However, at high pitch maneuvers (i.e.,the 45 ° ramp angle case), could preserve the response pattern with attenuated amplitudes without high computational burden. These mathematical analytical models presented in this chapter can be used to obtain a fast estimate for aircraft unsteady lift during pitch maneuvers instead of high fidelity models, especially in the early design phases.
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Conference papers on the topic "Ultra fast vortex dynamics"

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GREENGARD, L., and V. ROKHLIN. "Fast algorithms for vortex methods." In 1st National Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-3574.

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BUTTKE, THOMAS, and PHILLIP COLELLA. "A fast vortex method in three dimensions." In 10th Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1568.

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Schmitt-Sody, Andreas, Jean-Claude Diels, and Ladan Arissian. "Ultra-slow dynamics of an ultra- fast laser." In 2007 Quantum Electronics and Laser Science Conference. IEEE, 2007. http://dx.doi.org/10.1109/qels.2007.4431799.

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BADEN, SCOTT, and ELBRIDGEGERRY PUCKETT. "A fast vortex code for computing 2-D flow in a box." In 1st National Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-3605.

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Brion, Vincent, Hugues Dekerret, Denis Sipp, and Laurent Jacquin. "Optimal Perturbation of a Vortex Sheet for Fast Destabilization of the Trailing Vortices." In 38th Fluid Dynamics Conference and Exhibit. American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-4182.

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Klaui, M. "Skyrmion Dynamics – from thermal diffusion to ultra-fast motion." In 2018 IEEE International Magnetic Conference (INTERMAG). IEEE, 2018. http://dx.doi.org/10.1109/intmag.2018.8508806.

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Björneholm, O. "Dynamics of competing ultra-fast fragmentation and resonant Auger processes." In X-RAY AND INNER-SHELL PROCESSES: 18th International Conference. AIP, 2000. http://dx.doi.org/10.1063/1.1302751.

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Mathijssen, Arnold JTM, Josh Culver, Saad Bhamla, and Manu Prakash. "Video: Collective hydrodynamic communication through ultra-fast cellular contractions." In 71th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2018. http://dx.doi.org/10.1103/aps.dfd.2018.gfm.v0019.

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Carreres, M., L. M. García-Cuevas, J. García-Tíscar, and M. Belmar-Gil. "Spectral Analysis of an Aeronautical Lean Direct Injection Burner Through Large Eddy Simulation." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14998.

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Abstract During the last decades, many efforts have been invested by the scientific community in minimising exhaust emissions from aeronautical gas turbine engines. In this context, many advanced ultra-low NOx combustion concepts, such as the Lean Direct Injection treated in the present study, are being developed to abide by future regulations. Numerical simulations of these devices are usually computationally expensive since they imply a multi-scale problem. In this work, a non-reactive Large Eddy Simulation of a gaseous-fuelled, radial-swirled Lean-Direct Injection (LDI) combustor has been c
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Baiburin, Vil B., Alexander S. Rozov, and Artem M. Kolomin. "Ultra-fast method for solving the heat equation." In 2020 4th Scientific School on Dynamics of Complex Networks and their Application in Intellectual Robotics (DCNAIR). IEEE, 2020. http://dx.doi.org/10.1109/dcnair50402.2020.9216915.

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Reports on the topic "Ultra fast vortex dynamics"

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Perera, Lalith, and Max L. Berkowitz. Ultra-Fast Solvation Dynamics in a Stockmayer Fluid. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada251110.

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