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Chinese Academy of Sciences Institutional Repositories Grid
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Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously 期刊论文  OAI收割
The Astrophysical Journal, 2021, 卷号: 921, 页码: 179
作者:  
HXMT
  |  收藏  |  浏览/下载:25/0  |  提交时间:2022/02/08
Solar flares  Solar oscillations  Solar ultraviolet emission  Solar  x-ray emission  Solar radio emission  1496  1515  1533  1536  1522  Astrophysics - Solar and Stellar Astrophysics  Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.  
Orientation-selective elliptic optical vortex array 期刊论文  OAI收割
APPLIED PHYSICS LETTERS, 2020, 卷号: 116, 期号: 1
作者:  
Wang, Y. K.;  Ma, H. X.;  Zhu, L. H.;  Tai, Y. P.;  Li, X. Z.
  |  收藏  |  浏览/下载:74/0  |  提交时间:2020/01/17
Modulation of HCHO, H2O and H adsorption on AgPd cocatalyst by optimizing of selective exposed facet to enhancing the efficiency of conversion toxic formaldehyde into hydrogen driven by visible light 期刊论文  OAI收割
Journal of Catalysis, 2019, 卷号: 375, 期号: -, 页码: 493-506
作者:  
Hongxia Liu;  Meng Wang;  Gongxuan Lu;  Jiantai Ma
  |  收藏  |  浏览/下载:128/0  |  提交时间:2019/11/14
Electrical-pumping spasing action from cross-stacked microwires 期刊论文  OAI收割
Journal of Materials Chemistry C, 2019, 卷号: 7, 期号: 35, 页码: 10933-10944
作者:  
Z.G.Li;  G.H.He;  M.M.Jiang;  J.L.Ji;  C.X.Shan
  |  收藏  |  浏览/下载:18/0  |  提交时间:2020/08/24
High efficient photocatalytic hydrogen evolution from formaldehyde over sensitized Ag@Ag-Pd alloy catalyst under visible light irradiation 期刊论文  OAI收割
Applied Catalysis B: Environmental, 2018, 卷号: 237, 期号: 0, 页码: 563-573
作者:  
Hongxia Liu;  Meng Wang;  Xuqiang Zhang;  Jiantai Ma;  Gongxuan Lu
  |  收藏  |  浏览/下载:91/0  |  提交时间:2018/11/23
Substitutional Carbon-Modified Anatase TiO2 Decahedral Plates Directly Derived from Titanium Oxalate Crystals via Topotactic Transition 期刊论文  OAI收割
ADVANCED MATERIALS, 2018, 卷号: 30, 期号: 20, 页码: -
作者:  
Niu, P;  Wu, TT;  Wen, L;  Tan, J;  Yang, YQ
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/06/05
Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres 期刊论文  OAI收割
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2018, 卷号: 514, 页码: 634-641
作者:  
Xie, YP;  Zheng, YH;  Yang, YQ;  Jiang, RZ;  Wang, GS
  |  收藏  |  浏览/下载:43/0  |  提交时间:2018/06/05
Single-crystal TiO2 nanorods assembly for efficient and stable cocatalyst-free photocatalytic hydrogen evolution 期刊论文  OAI收割
APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 卷号: 229, 页码: 1-7
作者:  
Jiang, Y;  Ning, HY;  Tian, CG;  Jiang, BJ;  Li, Q
  |  收藏  |  浏览/下载:39/0  |  提交时间:2018/09/06