Results 51 to 60 of about 18,296 (224)

Radio frequency induced and neoclassical asymmetries and their effects on turbulent impurity transport in a tokamak

, 2013
Poloidal asymmetries in the impurity density can be generated by radio frequency heating in the core and by neoclassical effects in the edge of tokamak plasmas.
Angioni, Candy, Catto, Dendy, Dux, Fülöp, Fülöp, Fülöp, Groebner, Groebner, Ingesson, Kagan, Kallenbach, Kazakov, Landreman, Landreman, Marr, Miller, Mollén, Mollén, Moradi, Neu, Porkolab, Pusztai, Pusztai, Pütterich, Valisa   +26 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Threshold effects of tungsten impurity accumulation on core ion temperature in EAST tokamak

Nuclear Fusion
The critical threshold of the tungsten impurity concentration on the ion temperature in the core region is experimentally identified and studied in this paper. Sufficient experiments have demonstrated that the effect of tungsten impurity concentration on
H. Sheng, Y.W. Sun, L.Y. Chen, X. Jian, X.R. Zhang, Y.M. Duan, Y.Y. Li, J. Li, H.H. Wang, C. Ye, J.L. Chen, W.M. Zhang, S. Gu, M.N. Jia, Q. Ma, T.H. Shi, P.C. Xie, H. Yang, X.M. Wu, K.Y. He, X.M. Zhai, L. Zhang, H.L. Zhao, Y.H. Huan, J.F. Wang, G.H. Deng, J.Z. Shi, M.Y. Ye, B.N. Wan   +28 more
doaj   +1 more source

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Controlling impurity transport in 5D gyrokinetic simulations using a transport barrier

Nuclear Fusion
The effects of transport barriers on impurity transport, specifically helium (He) and tungsten (W), are investigated using the global, flux-driven, full-F, 5D gyrokinetic code GYSELA.
G. Lo-Cascio, E. Gravier, M. Lesur, T. Réveillé, Y. Sarazin, X. Garbet, K. Lim, T. Rouyer, A. Guillevic   +8 more
doaj   +1 more source

Investigation of conduction band structure, electron scattering mechanisms and phase transitions in indium selenide by means of transport measurements under pressure

, 1996
In this work we report on Hall effect, resistivity and thermopower measurements in n-type indium selenide at room temperature under either hydrostatic and quasi-hydrostatic pressure.
%A. Polian, A. Bourdon, A. Chevy, A. Chevy, A. Chevy, A. Polian, A. Segura, A. Segura, A. Segura, A.A. Ismailov, A.R. Gon-|Ati, B. Marí, B.R. Nag, C. Ulrich, C. Ulrich, C. Ulrich, D. Errandonea, D.F. Howell, E. Kress-Rogers, E. Kress-Rogers, E. Kress-Rogers, E.M. Conwell, F. Stern, H. Brooks, I.G. Lang, J. F. Sánchez-Royo, J. Martínez-Pastor, J. Riera, J.C. Portal, J.L. Van der Pauw, J.M. Besson, J.M. Besson, K.R. Allakhverdiev, M. Gauthier, M. Mejatty, M. Nishikawa, N. Gasanly, N. Kuroda, N. Kuroda, N. Kuroda, N. Kuroda, N. Piccioli, P. Grima, P. Kir`eev, R. Fivaz, R. Nicholas, R. Pareja, U. Schwarz, V. Mun-|Atoz   +48 more
core   +1 more source

Comparative modeling studies of carbon and tungsten impurity transport in the boundary plasma of EAST with a partially detached divertor condition

Nuclear Materials and Energy, 2022
The source and leakage of both C and W are comparatively studied for a partially detached divertor operation condition on EAST. Based on the EAST experiments, sequential SOLPS-DIVIMP simulations are carried out to study the transport of intrinsic impurities in the boundary plasma. Carbon distribution from the fluid SOLPS simulation is in good agreement
Guoliang Xu, Hui Wang, Rui Ding, Xiaoju Liu, Hang Si, Dahuan Zhu, Rong Yan, Ran Hai, Hai Xie, Junling Chen   +9 more
openaire   +2 more sources

Low Resistance Interphase Formation at the PEO‐LiTFSI|LGPS Interface in Lithium Solid‐State Batteries

Advanced Materials Interfaces, EarlyView.
Interfacial charge transfer and low‐resistance interphase formation between PEO‐based polymer and Li10GeP2S12 solid electrolytes are investigated using multi‐electrode impedance spectroscopy and advanced analytical techniques such as XPS and ToF‐SIMS.
Ujjawal Sigar, Timo Weintraut, Sebastian L. Benz, Semih Engün, Sascha Kremer, Anja Henss, Felix H. Richter   +6 more
wiley   +1 more source

Interpretive modeling of tungsten divertor leakage during experiments with neon gas seeding

Nuclear Fusion
Many existing and future tokamaks with tungsten divertors operate, or will operate, with low- Z impurity seeding, but the direct effect of these seeded impurities on tungsten Scrape-off-Layer (SOL) transport has not been explored in detail.
Matthew S. Parsons, Gregory Sinclair, Tyler Abrams, Patrick Byrne, Colin Chrystal, Florian Effenberg, Jeffrey L. Herfindal, Tomas Odstrcil, Robert S. Wilcox   +8 more
doaj   +1 more source

Comparative studies of tungsten erosion and edge transport under partially detached divertor condition of CFETR with neon and argon seedings

Nuclear Materials and Energy
Neon (Ne) and argon (Ar) impurity seedings are recognized as effective techniques for reducing the divertor heat load in high-power operations of future reactors like CFETR.
Hui Wang, Guoliang Xu, Rui Ding, Hang Si, Guozhang Jia, Jin Guo, Jinheng Zhao, Junling Chen   +7 more
doaj   +1 more source