Results 41 to 50 of about 9,376 (298)

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Nonlinear edge-localized mode with impurity seeding in CFETR hybrid scenario

Nuclear Fusion
A critical challenge for operating fusion burning plasma in high-confinement mode lies in mitigating damage caused by edge-localized modes (ELMs).
Shiyong Zeng, Ping Zhu
doaj   +1 more source

Divertor detachment and reattachment with mixed impurity seeding on ASDEX Upgrade

Nuclear Fusion, 2023
Using newly developed spectroscopic models to measure the divertor concentration of Ne and Ar, it is shown that the experimental detachment threshold on ASDEX Upgrade with Ar-only and mixtures of Ar+N or Ne+N scales as expected in comparison with an ...
S.S. Henderson, M. Bernert, D. Brida, M. Cavedon, P. David, R. Dux, O. Février, A. Järvinen, A. Kallenbach, M. Komm, R. McDermott, M. O’Mullane, the ASDEX Upgrade Team, the EUROfusion MST1 Team   +13 more
doaj   +1 more source

Management of localized energy in discrete nonlinear transmission lines

, 2007
The manipulation of locked intrinsic localized modes/discrete breathers is studied experimentally in nonlinear electric transmission line arrays. Introducing a static lattice impurity in the form of a capacitor, resistor or inductor has been used both to
A. J. Sievers, Doi Y., Essimbi B. Z., Hirota R., M. Kimura, M. Sato, Mills D. L., Remoissenet M., S. Yasui, Sato M., Scott A., Scott A. C., Stearrett R., T. Hikihara, Wang S.   +14 more
core   +1 more source

Edge plasma effects in DIII-D impurity seeded discharges [PDF]

Journal of Nuclear Materials, 2003
Abstract DIII-D, ELMing H-mode radiating mantle discharges have been obtained with electron density near the Greenwald density limit and a large fraction of the input power radiated inside the last closed flux surface, significantly reducing peak divertor heat fluxes.
Jackson, G. L., Boedo, J. A., Lasnier, C. J., Leonard, A. W., McKee, G. R., Murakami, M, Wade, M. R., Watkins, J. G., West, W. P., Whyte, D. G.   +9 more
openaire   +1 more source

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

Advanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang, Ying Chen, Chenyang Shi, Progyateg Chakma, James J. De Yoreo, Chun‐Long Chen   +5 more
wiley   +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

Global effects on neoclassical transport in the pedestal with impurities

, 2016
We present a numerical study of collisional transport in a tokamak pedestal in the presence of non-trace impurities, using the radially global $\delta f$ neoclassical solver PERFECT [M. Landreman et al. 2014 Plasma Phys. Control. Fusion 56 045005]. It is
Buller, S., Landreman, M., Pusztai, I.
core   +1 more source

Ionic‐Electronic Hydrogel‐Liquid Metal Composite Bilayer with Tissue‐Adaptive and Adhesive Properties for Closed‐Loop Neuroprosthetic System

Advanced Functional Materials, EarlyView.
A hydrogel–liquid metal composite peripheral nerve interface (HLB‐PNI) combines electrically durable electrodes and tissue‐adhesive hydrogel for tissue‐adaptive implantation. In nerve‐injured rats, it enables the diagnosis of sensory‐motor connectivity via stimulation and neural signal recording.
Yewon Kim, Kyoungryong Kim, Jaehyon Kim, Heewon Choi, Mikyung Shin, Donghee Son   +5 more
wiley   +1 more source

Impact of nitrogen seeding on L–H transitions and their role for detachment in ASDEX Upgrade

Nuclear Fusion
The required heating power, $P_{\mathrm{LH}}$ , to access the high confinement regime (H-mode) in nitrogen seeded deuterium plasmas is investigated at the ASDEX Upgrade tokamak. It is shown that a stepwise increase of the nitrogen seeding level increases
G. Birkenmeier, M. Bernert, D. Brida, P. David, R. Fischer, T. Happel, B. Kurzan, T. Lunt, F. Ryter, E. Wolfrum, the ASDEX Upgrade Team   +10 more
doaj   +1 more source