Publications related to Cycling dynamics of the internal kink mode in non-linear two-fluid MHD simulations

Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

In this thesis I study the synthesis and basic physical properties characterization on 3

d

, 4

d

and 5

d

transition metal compounds. Great success has been obtained in 3

d

transition metal compounds, in which the electric states are well localized due t ...

EPFL2017

Non-linear dynamics of compound sawteeth in tokamaks

Compound sawteeth is studied with the XTOR-2F code. Non-linear full 3D magnetohydrodynamic simulations show that the plasma hot core is radially displaced and rotates during the partial crash, but is not fully expelled out of the q = 1 surface. Partial cra ...

2016

MnO nanoparticles as the cause of ferromagnetism in bulk dilute Mn-doped ZnO

Henrik Moodysson Rønnow, Arnaud Magrez, Diane Virginie Marie Lançon, Goran Nilsen, Ping Huang

We show that the observed ferromagnetic behavior of ZnO lightly doped with Mn coincides with the presence of MnO nanoparticles, whereas cluster-free Mn doped ZnO behaves paramagnetically. This conclusion is reached by a study of the structural and magnetic ...

2016

Stabilization of electrodynamic bearings with active magnetic dampers

Qingwen Cui

Electrodynamic Bearings (EDBs) are a kind of passive magnetic bearings that exploits the interaction between the induced eddy currents in a conductor and a magnetic field to provide re-storing forces. They have been regarded as an appealing alternative to ...

EPFL2016

Stability of Tokamak and RFP Plasmas with an Extended Region of Low Magnetic Shear

Daniele Brunetti

It has been observed experimentally that magnetically confined plasmas, characterised by the safety factor q with a small or slightly inverted magnetic shear, have good confinement properties. Such plasmas typically have no internal transport barrier, oper ...

EPFL2015

The negative triangularity tokamak: stability limits and prospects as a fusion energy system

Olivier Sauter, Ambrogio Fasoli, Laurent Villard, Andrei Martynov

The paper discusses edge stability, beta limits and power handling issues for negative triangularity tokamaks. The edge magnetohydrodynamic stability is the most crucial item for power handling. For the case of negative triangularity the edge stability pic ...

Iop Publishing Ltd2015

Sound Isolation and Giant Linear Nonreciprocity in a Compact Acoustic Circulator

Romain Christophe Rémy Fleury

Acoustic isolation and nonreciprocal sound transmission are highly desirable in many practical scenarios. They may be realized with nonlinear or magneto-acoustic effects, but only at the price of high power levels and impractically large volumes. In contra ...

American Association for the Advancement of Science2014

Intracorporeal anchoring and guiding system with permanent magnet force modulation

Lionel Flaction

Magnetic manipulation of objects within the body is a growing field of research since the second half of the last century. Therapeutic and diagnostic capabilities offered by such technology are extended with the clinical need to make procedures less invasi ...

EPFL2013

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas

Federico David Halpern

The cycling dynamics of the internal kink mode, which drives sawtooth oscillations in tokamak plasmas, is studied using the three dimensional, non-linear magnetohydrodynamic (MHD) code XTOR-2F [H. Lütjens and J.-F. Luciani, J. Comput. Phys. 229, 8130 (2010 ...

American Institute of Physics2011

Observer-based real-time control for the poloidal beta of the plasma using diamagnetic measurements in tokamak fusion reactors

Stefano Coda, Jean-Marc Moret, Federico Alberto Alfredo Felici, James Paley, Loïc Curchod

The constant technological advances and progresses in tokamak research constantly show up new control challenges. In this context, the control of the poloidal beta has arisen as a relevant issue. In this paper a real-time observer based on the real-time an ...

IEEE2011

Cycling dynamics of the internal kink mode in non-linear two-fluid MHD simulations

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Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

Non-linear dynamics of compound sawteeth in tokamaks

MnO nanoparticles as the cause of ferromagnetism in bulk dilute Mn-doped ZnO

Stabilization of electrodynamic bearings with active magnetic dampers

Stability of Tokamak and RFP Plasmas with an Extended Region of Low Magnetic Shear

The negative triangularity tokamak: stability limits and prospects as a fusion energy system

Sound Isolation and Giant Linear Nonreciprocity in a Compact Acoustic Circulator

Intracorporeal anchoring and guiding system with permanent magnet force modulation

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas

Observer-based real-time control for the poloidal beta of the plasma using diamagnetic measurements in tokamak fusion reactors

Stability of Tokamak and RFP Plasmas with an Extended Region of Low Magnetic Shear

Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

Non-linear dynamics of compound sawteeth in tokamaks

Stabilization of electrodynamic bearings with active magnetic dampers

Sound Isolation and Giant Linear Nonreciprocity in a Compact Acoustic Circulator

Observer-based real-time control for the poloidal beta of the plasma using diamagnetic measurements in tokamak fusion reactors

MnO nanoparticles as the cause of ferromagnetism in bulk dilute Mn-doped ZnO

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas

Intracorporeal anchoring and guiding system with permanent magnet force modulation

The negative triangularity tokamak: stability limits and prospects as a fusion energy system