Results 51 to 60 of about 43,434 (299)

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

An adjoint method to calculate the gradient of island width in stellarators is presented and applied to a set of magnetic field configurations. The underlying method for calculation of the island width is that of Cary & Hanson (Phys. Fluids B, vol.
Paul, E., Geraldini, Alessandro, Landreman, M.   +2 more
core   +1 more source

Use of differential plasma rotation to prevent disruptive tearing mode onset from 3-wave coupling

Nuclear Fusion
Plasma differential rotation is found to be capable of preventing disruptive neoclassical tearing modes (NTMs) seeded by nonlinear three-wave coupling. As tearing modes degrade confinement and can lead to disruptions, stabilization strategies are crucial
N.J. Richner, L. Bardóczi, J.D. Callen, R.J. La Haye, N.C. Logan, E.J. Strait   +5 more
doaj   +1 more source

Redox imbalance drives magnetic property and function changes in mice

Redox Biology
The magnetic properties of substances directly determine their response to an externally applied magnetic field, which are closely associated with magnetoreception, magnetic resonance imaging (MRI), and magnetic bioeffects.
Chuanlin Feng, Lei Zhang, Xiaoyuan Zhou, Shiyu Lu, Ruowen Guo, Chao Song, Xin Zhang   +6 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Self-sustained annihilation of magnetic islands in helical plasmas [PDF]

, 2005
The evolution of the magnetic island which is induced by the resonant deformation by external currents in helical systems (such as the large helical device (LHD) [A. Iiyoshi, Phys. Plasmas 2, 2349 (1995)]) is analyzed. The defect of the bootstrap current,
Yagi, Masatoshi, Sanae-I. Itoh, Itoh, Sanae-I., Kimitaka Itoh, Itoh, Kimitaka, Masatoshi Yagi   +5 more
core   +1 more source

Dynamic characteristics of edge plasma profiles during the opening of edge islands on the J-TEXT tokamak

Nuclear Fusion
On the J-TEXT tokamak, the dynamics of edge magnetic topology during the opening of the edge magnetic islands induced by the external Resonant Magnetic Perturbation (RMP) are investigated.
J. Yang, Y. Liang, P. Shi, N.C. Wang, S. Zhou, Z.P. Chen, Z.H. Jiang, F.Y. Mao, Q.H. Yang, J.K. Hua, D. Li, Z.Y. Chen, Y.H. Ding, P. Drews, A. Knieps, E. Wang, S. Xu, H.M. Xiang, J.Q. Cai, J. Huang, Y.C. Gao, J.W. Liu, Y. Luo, L. Liao, the J-TEXT team   +24 more
doaj   +1 more source

Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures

Advanced Functional Materials, EarlyView.
Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko, Hyun Ju Lee, Jeong Kyu Lee, Han Sol Kim, Min Seok Kim, Quynh Anh T. Nguyen, Sonny H. Rhim, Young Keun Kim   +7 more
wiley   +1 more source

Localized 3D control of energetic electron-driven toroidal Alfven eigenmode using resonant magnetic perturbations in the EAST tokamak

Nuclear Fusion
The formation of a static 3D helically localized perturbation structure of the toroidal Alfvén eigenmode (TAE) is observed for the first time under static magnetic islands induced by resonant magnetic perturbations (RMPs) in tokamak plasmas.
N. Chu, Y. Sun, Y.J. Hu, B. Shen, H.H. Wang, T.H. Shi, Y.M. Duan, K.Y. He, S. Gu, M. Jia, H.Q. Liu, Y. Liu, B. Lyu, Q. Ma, J.P. Qian, J. Ren, A. Ti, S.X. Wang, H.L. Wang, Y.M. Wang, Q. Zang, L. Zeng, J.Z. Zhang, T. Zhang, Y. Zhang, Y.N. Zhang, H.L. Zhao, R.J. Zhou, T.F. Zhou, G.Q. Li   +29 more
doaj   +1 more source

Silicone Phase Behavior Resolves the Softness–Surface Functionality Trade‐Off in Emerging Stretchable Electronics

Advanced Functional Materials, EarlyView.
Ultrasoft silicone elastomers often sacrifice surface functionality for mechanical compliance. In Mold Star, low‐molecular‐weight species form a dispersed phase that weakens the network and passivates the surface. Solvent extraction removes this phase, unexpectedly improving both extensibility and metallization performance, enabling conductive ...
Gloria M. D'Amaral, Rahaf Nafez Hussein, Tiago Carneiro Gomes, Jordan E. Nicholson, Lauren J. Renaud, Emily J. Addison, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +7 more
wiley   +1 more source

Mechanism of Viscosity Effect on Magnetic Island Rotation [PDF]

, 2000
"It is shown that plasma viscosity does not influence the magnetic island rotation directly. Nevertheless, it leads to nonstationarity of the plasma velocity.
Konovalov, S. V., Pustovitov, V. D., Tsypin, V. S.", "Mikhailovskii, A. B.   +3 more
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