Results 1 to 10 of about 56,208 (298)

Enhanced sensitivity in nonlinear parity-time symmetric silicon micromechanical resonators [PDF]

open access: yesMicrosystems & Nanoengineering
Silicon resonant sensors are essential to a wide range of applications that involve the detection of pressure, acceleration, and magnetic fields.
Yu-Jue Xie   +4 more
doaj   +2 more sources

Suppressing magnetic island growth by resonant magnetic perturbation [PDF]

open access: yesNuclear Fusion, 2018
The effect of externally applied resonant magnetic perturbations (RMPs) on the growth of magnetic islands is investigated based on two-fluid equations. It is found that if the local bi-normal electron fluid velocity at the resonant surface is sufficiently large, static RMPs of the same helicity and of moderate amplitude can suppress the growth of ...
Yu, Q., Günter, S., Lackner, K.
openaire   +4 more sources

Pedestal collapse by resonant magnetic perturbations

open access: yesNuclear Fusion, 2021
Abstract Pedestal collapse (i.e., the complete loss of the edge transport barrier (ETB)) in DIII-D H-mode plasmas occurs when resonant magnetic perturbations (RMPs) penetrate the steep gradient region at the plasma edge. Normally, RMP driven magnetic islands can occur at the top and bottom of the H-mode pedestal and these islands ...
R. Nazikian   +11 more
openaire   +3 more sources

Plasma turbulence simulations in a diverted tokamak with applied resonant magnetic perturbations

open access: yesNuclear Fusion, 2023
The first results of three-dimensional, flux-driven, electrostatic, global, two-fluid turbulence simulations of a diverted tokamak configuration with applied resonant magnetic perturbations generated by a set of saddle coils are presented.
T. Boinnard   +3 more
doaj   +1 more source

Complex Permittivity and Permeability Extraction of Ferromagnetic Materials For Magnetically Tuned Microwave Circuits

open access: yesIEEE Journal of Microwaves, 2021
Ferromagnetic materials, such as ferrites, are employed for magnetically tuned radio frequency (RF) circuits. Ferrites exhibit both electric permittivity and magnetic permeability and independent RF characterization of these two properties is crucial for
Khaled Ali Alhassoon   +2 more
doaj   +1 more source

Plasma response to externally applied resonant magnetic perturbations [PDF]

open access: yesNuclear Fusion, 2011
Based on recent finding that applied resonant magnetic perturbation (RMP) can either increase or decrease the local electron density gradient around the resonant surface (Yu and Günter 2009 Nucl. Fusion 49 062001), the plasma response to the RMP of a single helicity is studied numerically by further taking into account the ...
Yu, Q., Günter, S.
openaire   +4 more sources

Tailoring resonant magnetic perturbation to optimize fast-ion confinement during ELM control in KSTAR

open access: yesNuclear Fusion, 2023
3D resonant magnetic perturbation (RMP) is one promising way to control edge localized modes that can cause excessive material erosion of tokamak first walls.
S.M. Yang   +5 more
doaj   +1 more source

Penetration properties of applied resonant magnetic perturbation in HL-2A tokamak

open access: yesNuclear Fusion, 2023
Any arbitrary perturbation on a magnetic field separatrix can cause a structure named homoclinic tangle in tokamaks. Both an edge localized mode (ELM) and a resonant magnetic perturbation (RMP) can lead to a perturbation of the magnetic field on the ...
X. Wang   +5 more
doaj   +1 more source

Toroidal modeling of 3D perturbations generated by current filaments in scrape-off layer in tokamak with biased divertor targets

open access: yesNuclear Fusion, 2022
The divertor biasing technique offers a promising alternative to control the edge localized mode (ELM) as well as the divertor heat load in tokamaks, as compared to the resonant magnetic perturbation (RMP) generated by magnetic coils.
G.Z. Hao   +19 more
doaj   +1 more source

Direct effects of the resonant magnetic perturbation on turbulent transport [PDF]

open access: yesNuclear Fusion, 2016
Abstract The effects of the resonant magnetic perturbations (RMPs) on the turbulent transport are analyzed in the framework of the test particle approach using a semi-analytical method. The model includes particle collisions. The influence of the RMPs on plasma confinement is determined as function turbulence parameters and of ...
Vlad, Madalina, Spineanu, Florin
openaire   +2 more sources

Home - About - Disclaimer - Privacy