Results 81 to 90 of about 211,167 (339)

Neural network-based classification and regression of magnetohydrodynamic modes in tokamaks

Nuclear Fusion
We present a machine learning-based magnetohydrodynamic (MHD) classifier and regressor that utilizes real or complex-valued 3D magnetic sensor array data to determine neoclassical tearing mode (NTM) onset times in tokamaks with millisecond accuracy.
L. Bardoczi, K. Won, N.J. Richner, A.C. Brown, D. Chow, P. Li, J. Monahan   +6 more
doaj   +1 more source

Non-collinear single-electron spin-valve transistors

, 2005
We study interaction effects on transport through a small metallic cluster connected to two ferromagnetic leads (a single-electron spin-valve transistor) in the "orthodox model" for the Coulomb blockade.
Gerrit E. W. Bauer, I. O. Kulik, J. König, J. Philip, Milena Grifoni, Wouter Wetzels   +5 more
core   +2 more sources

An adjoint method for determining the sensitivity of island size to magnetic field variations [PDF]

, 2021
Alessandro Geraldini, Matt Landreman, Elizabeth J. Paul   +2 more
openalex   +1 more source

Ferromagnetism of Molecular Beam Epitaxy‐grown Ultra‐thin Cr2Ge2Te6 Films Down to the Monolayer Limit on Si Substrates

Advanced Materials, EarlyView.
Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji, Ruixuan Liu, Tianchen Zhu, Yang Chen, Yitian Tong, Jinxuan Liang, Yunhe Bai, Yunyi Zang, Zuhan Geng, Fangting Chen, Xiyu Hong, Jiatong Zhang, Luyi Yang, Qi‐Kun Xue, Ke He, Xiao Feng   +15 more
wiley   +1 more source

Physics-guided attention-aware convolutional neural networks for identification of magnetic islands in the tearing mode on EAST tokamak

Nuclear Fusion
The tearing mode (TM), a large-scale magnetohydrodynamic instability in tokamak, typically disrupts the equilibrium magnetic surfaces, leads to the formation of magnetic islands, reduces core electron temperature and density, thus resulting in ...
Feifei Long, Yian Zhao, Yunjiao Zhang, Chenguang Wan, Yinan Zhou, Ziwei Qiang, Kangning Yang, Jiuying Li, Tonghui Shi, Bihao Guo, Yang Zhang, Hailing Zhao, Ang Ti, Adi Liu, Chu Zhou, Jinlin Xie, Zixi Liu, Ge Zhuang, the EAST Team   +18 more
doaj   +1 more source

On the magnetic anomaly at Easter Island during the 2010 Chile tsunami

Theoretical and Applied Mechanics Letters, 2015
A magnetic anomaly was recorded at Easter Island on 27 February 2010 during the Chile tsunami event. The physics of the magnetic anomaly is analyzed using kinematic dynamo theory.
Benlong Wang, Xiaoyu Guo, Hua Liu, Cheng Gong   +3 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Tearing stable stationary ITER baseline operation in DIII-D

Nuclear Fusion
We present a tearing stable, stationary and reproducible operating solution for DIII-D plasmas characterized by the ITER baseline scenario normalized parameter set and shape.
L. Bardóczi, A. Dudkovskaia, N.C. Logan, N.J. Richner, A.C. Brown, J.D. Callen, R.J. La Haye, E.J. Strait   +7 more
doaj   +1 more source

Two-fluid magnetic island dynamics in slab geometry: II - Islands interacting with resistive walls or static external resonant magnetic perturbations

, 2004
The dynamics of a propagating magnetic island interacting with a resistive wall or a static external magnetic perturbation is investigated using two-fluid, drift-MHD theory in slab geometry.
Fitzpatrick, Richard, Waelbroeck, Francois L   +1 more
core   +1 more source

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

Advanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad, Vandana Molahalli, Apichart Pattanaporkratana, Nattaporn Chattham   +3 more
wiley   +1 more source