Results 101 to 110 of about 56,208 (298)

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Quasi-mode evolution in a stochastic magnetic field

Nuclear Fusion
We present a multi-scale model of quasi-mode evolution in a stochastic magnetic field. The similarity between a quasi-mode and a ballooning mode enables us to address the challenges arising from the disparate geometries in the theories of ballooning ...
Mingyun Cao, P.H. Diamond
doaj   +1 more source

Tearing mode stability calculations with pressure flattening

, 2013
Calculations of tearing mode stability in tokamaks split conveniently into an external region, where marginally stable ideal MHD is applicable, and a resonant layer around the rational surface where sophisticated kinetic physics is needed.
Connor, J W, Cowley, S C, Ham, C J, Hastie, R J, Hender, T C, Liu, Y Q   +5 more
core   +1 more source

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Numerical simulations of transverse oscillations in radiatively cooling coronal loops

, 2015
We aim to study the influence of radiative cooling on the standing kink oscillations of a coronal loop. Using the FLASH code, we solved the 3D ideal magnetohydrodynamic equations.
Magyar, N., Marcu, A., Van Doorsselaere, T.   +2 more
core   +1 more source

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Toroidal modeling of the effect of resonant q95 on n = 1 error field penetration in EAST

Nuclear Fusion
The plasma response to the n  = 1 resonant magnetic perturbation in EAST has been systematically investigated using the MARS-F/Q codes, focusing on the roles of q _95 and $\beta_\mathrm N$ in error field penetration.
Cheng Ye, You-Wen Sun, Hui-Hui Wang, Yue-Qiang Liu, Jian Xu, Peng-Cheng Xie, Hui Sheng   +6 more
doaj   +1 more source

Resonant interaction between gravitational waves, electromagnetic waves and plasma flows

, 2003
In magnetized plasmas gravitational and electromagnetic waves may interact coherently and exchange energy between themselves and with plasma flows.
A. Greco, A.M. Anile, D. Papadopoulos, G. Brodin, G. Brodin, G.A. Morou, Gert Brodin, K. Kleidis, L. Stenflo, M. Maggiore, M. Marklund, M. Marklund, M. Servin, M.E. Gertsenshtein, Martin Servin, P.G. Macedo, R. Bingham, R. Littlejohn, R.A. Isaacson, Y.B. Zeldovich, Yu. G. Ignat’ev   +20 more
core   +1 more source

Translational Considerations for Injectable Biomaterials and Bioscaffolds to Repair and Regenerate Brain Tissue

Advanced Healthcare Materials, EarlyView.
The repair and regeneration of brain tissue faces both biological and technical challenges. Injectable bioscaffolds offer new opportunities to stimulate tissue regrowth in the brain by recruiting neural stem cells. Here, the translational issues are reviewed that need to be address to advance this promising new therapeutic approach from the bench to ...
Michel Modo, Alena Kisel
wiley   +1 more source

Unified framework of forced magnetic reconnection and Alfvén resonance

Fundamental Plasma Physics
A unified linear theory that includes forced reconnection as a particular case of Alfvén resonance is presented. We consider a generalized Taylor problem in which a sheared magnetic field is subject to a time-dependent boundary perturbation oscillating ...
D. Urbanski, A. Tenerani, F.L. Waelbroeck   +2 more
doaj   +1 more source