Results 1 to 10 of about 70 (66)

Mechanism of phonon localized edge modes [PDF]

Physical Review B, 2010
The phonon localized edge modes are systematically studied, and two conditions are proposed for the existence of the localized edge modes: (I) coupling between different directions ($x$, $y$ or $z$) in the interaction; (II) different boundary conditions in three directions.
Jiang, Jin-Wu, Wang, Jian-Sheng
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Poloidal localization of the explosive onset of edge localized modes

Nuclear Fusion, 2023
Abstract In ASDEX Upgrade lower single null H-mode plasmas, the onset of the explosive phase of Edge Localized Modes (ELMs) is poloidally localized in the X-point/outer strike point (X/OSP) region. From this location, ELMs develop on average towards the low-field and high-field sides in typically
E. Trier, P. Hennequin, M. Maraschek, L. Giannone, B. Vanovac, the ASDEX Upgrade Team   +5 more
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Edge Localized Modes in Tokamaks [PDF]

Fusion Science and Technology, 2008
As one increases the heating power in a tokamak beyond a threshold, the confinement undergoes a bifurcation, with a dramatic increase in the confinement time by a factor ˜2.
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A survey on local transport mode detection on the edge of the network

Applied Intelligence, 2022
AbstractWe present a survey of smartphone-based Transport Mode Detection (TMD). We categorize TMD solutions into local and remote; the first ones are addressed in this article. A local approach performs the following steps in the smartphone (and not in some faraway cloud servers): 1) data collection or sensing, 2) preprocessing, 3) feature extraction ...
Mahdieh Kamalian, Paulo Ferreira 0001, Eric Jul   +2 more
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Local thermometry of neutral modes on the quantum Hall edge [PDF]

Nature Physics, 2012
A system of electrons in two dimensions and strong magnetic fields can be tuned to create a gapped 2D system with one dimensional channels along the edge. Interactions among these edge modes can lead to independent transport of charge and heat, even in opposite directions.
Venkatachalam, Vivek, Hart, Sean, Pfeiffer, Loren, West, Ken, Yacoby, Amir   +4 more
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Edge localized mode control with an edge resonant magnetic perturbation [PDF]

Physics of Plasmas, 2005
A low amplitude (δbr∕BT=1 part in 5000) edge resonant magnetic field perturbation with toroidal mode number n=3 and poloidal mode numbers between 8 and 15 has been used to suppress most large type I edge localized modes (ELMs) without degrading core plasma confinement. ELMs have been suppressed for periods of up to 8.6 energy confinement times when the
Moyer, R. A, Evans, T. E, Osborne, T. H, Thomas, P. R, Becoulet, M., Harris, J., Finken, K.-H, Boedo, J. A, Doyle, E. J, Fenstermacher, M. E, Gohil, P., Groebner, R. J, Groth, M., Jackson, G. L, La Haye, R. J, Lasnier, C. J, Leonard, A. W, McKee, G. R, Reimerdes, H., Rhodes, T. L, Rudakov, D. L, Schaffer, M. J, Snyder, P. B, Wade, M. R, Wang, G., Watkins, J. G, West, W. P, Zeng, L.   +27 more
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Edge Localized Modes as New Bifurcation in Tokamaks

Physical Review Letters, 1996
A model of giant edge localized modes in tokamaks is developed. The theory of self-sustained turbulence of a current-diffusive ballooning mode is extended. A bifurcation from the H mode to a third state with magnetic braiding, the M mode, is found to occur if the pressure gradient reaches a critical value.
, Itoh, , Itoh, , Fukuyama, , Yagi
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The H-mode Pedestal and Edge Localized Modes in NSTX [PDF]

, 2004
The research program of the National Spherical Torus Experiment (NSTX) routinely utilizes the H-mode confinement regime to test and extend beta and pulse length limits. As in conventional aspect ratio tokamaks, NSTX observes a variety of edge localized modes (ELMs) in H-mode. Hence a significant part of the research program is dedicated to ELMs studies.
null R. Maingi, null E.D. Fredrickson, null J.E. Menard, null N. Nishino, null A.L. Roquemore, null S.A. Sabbagh, null K. Tritz, null the NSTX Team   +7 more
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Edge Modes and Nonlocal Conductance in Graphene Superlattices [PDF]

Physical Review Letters, 2018
We study the existence of edge modes in gapped Moiré superlattices in graphene monolayer ribbons. We find that the superlattice bands acquire finite Chern numbers, which lead to a Valley Hall Effect. The presence of dispersive edge modes is confirmed by calculations of the band structure of realistic nanoribbons using tight binding methods.
Brown, Rory, Walet, Niels; id_orcid 0000-0002-2061-5534, Guinea, Francisco   +2 more
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Edge-localized-modes in tokamaks

Physics of Plasmas, 2014
Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM instability grows explosively, rapidly transporting energy and particles onto open field lines and material surfaces.
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