Results 61 to 70 of about 26,082 (263)

Active generation and control of radial electric field by local neutral beamlets injection in tokamaks

Nuclear Fusion
The radial electric field plays an important role in plasma confinement in tokamaks and can be generated through neutral beam injection. In this study, we propose a model for calculating the radial electric field resulting from tangential local neutral ...
Xingyuan Xu, Yingfeng Xu, Kaixuan Ye, Youjun Hu, Xiaodong Zhang, Tao Zhang, Yifei Jin   +6 more
doaj   +1 more source

Divertor Tokamak Test: Impact of NBI shine-through and beam-plasma interaction on Divertor Tokamak Test facility

Frontiers in Physics
IntroductionIn this work, we aim to explore numerically the behavior of beam energetic particles in the Divertor Tokamak Test (DTT), a superconductive device equipped with a Neutral Beam Injection (NBI) system capable of injecting neutrals up to 510 keV ...
C. De Piccoli, C. De Piccoli, P. Vincenzi, P. Vincenzi, F. Veronese, P. Agostinetti, P. Agostinetti, I. Casiraghi, I. Casiraghi, A. Castaldo, P. Mantica, A. Murari, A. Murari, T. Bolzonella   +13 more
doaj   +1 more source

Descriptor‐Informed Screening of Interface‐Active Molecules for Efficient Magnesium Metal Anodes

Advanced Materials, EarlyView.
A descriptor‐informed molecular screening strategy identifies 4‐bromo‐N, N‐dimethylaniline (BrNNA) as an interface‐active electrolyte component that enables fast Mg stripping/plating in Mg(TFSI)2‐based electrolytes. By simultaneously regulating Mg2+ solvation and interphase formation, the BrNNA‐containing electrolyte delivers activation‐free Mg ...
Hao Xu, Yue Li, Tian Xie, Arafat Hossain Khan, Fengzhan Sun, Zhao Li, Lingyue Liu, Zhaohui Yang, Xinlong Xie, Huayu Qiu, Quanquan Guo, Tian Sun, Xingyuan Chu, Jingwei Du, Jianxin Zou, Xinliang Feng, Minghao Yu   +16 more
wiley   +1 more source

Experimental and simulation study on the backstreaming positive ions on the quarter-size negative ion source for CRAFT NNBI test facility

Nuclear Engineering and Technology
As an effective methods of plasma heating, neutral beam injection (NBI) systems based on negative hydrogen ion sources will be utilized in future magnetic-confinement nuclear fusion experiments.
Yongjian Xu, Yuwen Yang, Jianglong Wei, Ling Yu, Wen Deng, Rixin Wang, Yuming Gu, Chundong Hu, Yahong Xie   +8 more
doaj   +1 more source

In Situ Formation of a Highly Selective Nickel Single Atom Catalyst for Electrochemical CO2 Reduction to CO

Advanced Materials, EarlyView.
Development of a novel method for synthesizing Ni single atom catalysts for highly selective electrochemical CO2 reduction in situ. This catalyst achieves 100% selectivity for CO and is formed in an industrially relevant cell architecture. Using post‐mortem XRD, STEM, and EDS and operando XAS, the identity of the active site and the mechanism behind ...
Ian Street, Venkata Sai Sriram Mosali, Noah Sandberg, Fengyuan Shi, Deborah Myers, William E. Mustain   +5 more
wiley   +1 more source

Decoupling beam power and beam energy on ASDEX Upgrade NBI with an in-situ variable extraction gap system

Nuclear Fusion
In early 2022 one source of ASDEX Upgrade’s (AUG) neutral beam injector 2 was equipped with a first-of-its-kind beam extraction grid system with in-situ variable extraction/acceleration gap that allows one to choose beam energy and beam power ...
C. Hopf, N. den Harder, B. Heinemann, C. Angioni, U. Plank, M. Weiland, the ASDEX Upgrade Team   +6 more
doaj   +1 more source

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

Investigation of double frequency fishbone in EAST with neutral beam injection

Nuclear Fusion
In the EAST experiments with neutral beam injection and at a low electron density, fishbone instabilities characterized by mode numbers m / n = 1/1, 2/2 have been observed. The simultaneous growth of these modes, particularly m / n = 1/1 and m / n = 2/2,
Wei Shen, Liqing Xu, Zhiyong Qiu, Yan Chao, Yifeng Wang, Yuqi Chu, Jianwen Liu, Baolong Hao, Ming Xu, Yinfei Jin, Guoqiang Zhong, Zhihong Kuang, Shengfa Wu, the EAST Team   +13 more
doaj   +1 more source

Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications

Advanced Materials Technologies, EarlyView.
This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo, Sina Jamali, Nam‐Trung Nguyen   +2 more
wiley   +1 more source

Conceptional design of photoneutralization test system for negative ion-based neutral beam injection

Nuclear Engineering and Technology
Neutral beam injection is one of the effective heating methods in the field of magnetic confinement fusion, and neutralization is the most crucial link in the case of negative ions.
Hui-hui Hong, Li-zhen Liang, Yuan-lai Xie, Qian-xu Wang, Zhuo Pan, Yao Jiang   +5 more
doaj   +1 more source