Results 41 to 50 of about 4,306,191 (296)

Current sheets in the solar corona : formation, fragmentation and heating [PDF]

, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core   +2 more sources

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Simultaneous Proton and Electron Energization during Macroscale Magnetic Reconnection

The Astrophysical Journal
The results of simulations of magnetic reconnection accompanied by electron and proton heating and energization in a macroscale system are presented. Both species form extended power-law distributions that extend nearly three decades in energy.
Zhiyu Yin, J. F. Drake, M. Swisdak
doaj   +1 more source

Splitting and Reconstruction of a Solar Filament Caused by Magnetic Emergence and Reconnection

The Astrophysical Journal, 2023
We present observations and interpretation of a nonerupting filament in NOAA active region (AR) 12827 that undergoes splitting and restructuring on 2021 June 4, using the high-resolution data obtained by the New Vacuum Solar Telescope, the Solar Dynamics
Zhike Xue, Xiaoli Yan, Jincheng Wang, Liheng Yang, Zhe Xu, Yang Peng, Qiaoling Li   +6 more
doaj   +1 more source

Inverse Design of Nanoparticulate Materials

Advanced Materials, EarlyView.
Inverse design shifts nanomaterial development from empirical trial‐and‐error to predictive model‐driven strategies. It can rely on knowledge‐based, data‐based, or hybrid process and property functions. This perspective article provides a practical framework for applying inverse design based on instructive examples. It discusses which modeling approach
Nabi Etienne Traoré, Annika Mauch, Michelle Berthold, Lukas Pflug, Wolfgang Peukert, Nicolas Vogel   +5 more
wiley   +1 more source

Data-driven modeling of solar coronal magnetic field evolution and eruptions

The Innovation, 2022
Magnetic fields play a fundamental role in the structure and dynamics of the solar corona. As they are driven by their footpoint motions on the solar surface, which transport energy from the interior of the Sun into its atmosphere, the coronal magnetic ...
Chaowei Jiang, Xueshang Feng, Yang Guo, Qiang Hu   +3 more
doaj   +1 more source

Phase‐Engineered MoS2 Quantum Monolayer Catalysts

Advanced Materials, EarlyView.
A new type of catalyst model—phase‐engineered MoS2 quantum‐monolayer catalyst (∼0.8 nm thick, < 6 nm in the lateral size; switchable freely among metallic 1T, semiconducting 2H, and a hybrid phase of metallic‐semiconducting 1T‐2H)—is reported. It can efficiently and stably drive photochemical H2, syngas and ammonia synthesis as a catalyst or co ...
Ruijie Yang, Yingying Fan, Lillian Pernitsky, Mojtaba Ebrahimian Mashhadi, Ningxin Chen, Md. Mehadi Hassan, Zheng Li, Heng Zhao, Liang Mei, Zhiyuan Zeng, Zhangxing Chen, Jinguang Hu, Qingye Lu   +12 more
wiley   +1 more source

Refinement of Global Coronal and Interplanetary Magnetic Field Extrapolations Constrained by Remote-sensing and In Situ Observations at the Solar Minimum

The Astrophysical Journal
Solar magnetic fields are closely related to various physical phenomena on the Sun, which can be extrapolated with different models from photospheric magnetograms.
Guanglu Shi, Li Feng, Beili Ying, Shuting Li, Weiqun Gan   +4 more
doaj   +1 more source

High‐Mobility Chalcogenophene‐Engineered Diketopyrrolopyrrole Mixed Ionic‐Electronic Conductors With Doping Tolerance for Low‐Power Organic Electrochemical Transistors

Advanced Materials, EarlyView.
Chalcogen substitution emerges as a powerful strategy for designing high‐performance OMIECs. In aliphatic–glycol side chain diketopyrrolopyrrole polymers, biselenophene incorporation promotes a planar, polarizable, and doping‐tolerant quinoidal framework, enabling PDPP‐4EG‐Se2 to combine high hole mobility, large µC*, enhanced operational stability ...
Shinbee Oh, Tae Hoon Kim, Dahyun Jeong, Ji Hwan Kim, Seungjin Lee, Tan Ngoc‐Lan Phan, Alexander Tipan‐Quishpe, Myung‐Han Yoon, Keehoon Kang, Bumjoon J. Kim   +9 more
wiley   +1 more source

Tracking Magnetic Topological Changes in a Time-dependent Coronal Model

The Astrophysical Journal
We apply the slip-back mapping method of V. S. Titov et al. and R. Lionello et al. to a thermodynamic MHD simulation to track topological changes in the magnetic field at a range of temporal cadences.
Emily I. Mason, Cooper Downs, Roberto Lionello, Jon A. Linker, Viacheslav S. Titov   +4 more
doaj   +1 more source