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Chinese Academy of Sciences Institutional Repositories Grid
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Collider constraints on electroweakinos in the presence of a light gravitino 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL C, 2023, 卷号: 83, 期号: 6, 页码: 493
作者:  
Ananyev, Viktor;  Balazs, Csaba;  Beniwal, Ankit;  Braseth, Lasse Lorentz;  Buckley, Andy
  |  收藏  |  浏览/下载:18/0  |  提交时间:2023/12/07
Observation and analysis of lower-hybrid-current-drive density limit in EAST 期刊论文  OAI收割
NUCLEAR FUSION, 2022, 卷号: 62
作者:  
Li, M. H.;  Baek, S. G.;  Wallace, G. M.;  Ding, B. J.;  Wu, C. B.
  |  收藏  |  浏览/下载:53/0  |  提交时间:2022/12/23
No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文  OAI收割
Nature, 2020, 卷号: 587, 页码: 63-65
作者:  
HXMT
  |  收藏  |  浏览/下载:44/0  |  提交时间:2022/02/08
Astrophysics - High Energy Astrophysical Phenomena  Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.  
Lower Bound Limit Analysis of Anisotropic Soils 期刊论文  OAI收割
CMC-COMPUTERS MATERIALS & CONTINUA, 2018, 卷号: 54, 期号: 1, 页码: 21-41
作者:  
Li, Chunguang;  Li, Cuihua;  Sun, Cong;  Zheng, Hong
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/06/05
Lower bound limit analysis by quadrilateral elements 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2017, 卷号: 315, 页码: 319-326
作者:  
Li, Chunguang;  Sun, Cong;  Li, Cuihua;  Zheng, Hong
  |  收藏  |  浏览/下载:21/0  |  提交时间:2018/06/05
Trace-Level Potentiometric Detection in the Presence of a High Electrolyte Background 期刊论文  OAI收割
ANALYTICAL CHEMISTRY, 2012, 卷号: 84, 期号: 24, 页码: 10509-10513
作者:  
Qin, Wei;  Liang, Rongning;  Fu, Xiuli;  Wang, Qianwen;  Yin, Tanji
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/08
Design of data transmission speed for small high resolution satellite (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Transportation, Mechanical, and Electrical Engineering, TMEE 2011, December 16, 2011 - December 18, 2011, Changchun, China
Wang S.; Jin G.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Synthesis and characterization of monoazathiacrown ethers as ionophores for polymeric membrane silver-selective electrodes 期刊论文  OAI收割
TALANTA, 2010, 卷号: 81, 期号: 3, 页码: 1056-1062
作者:  
Zhang, Jun;  Ding, Jiawang;  Yin, Tanji;  Hu, Xuefeng;  Yu, Shunyang
收藏  |  浏览/下载:19/0  |  提交时间:2015/07/20
Synthesis and characterization of monoazathiacrown ethers as ionophores for polymeric membrane silver-selective electrodes 期刊论文  OAI收割
TALANTA, 2010, 卷号: 81, 期号: 3, 页码: 1056-1062
作者:  
Zhang, Jun;  Ding, Jiawang;  Yin, Tanji;  Hu, Xuefeng;  Yu, Shunyang
  |  收藏  |  浏览/下载:17/0  |  提交时间:2011/07/14
Space camera imaging gain in-orbit adjusting strategy (EI CONFERENCE) 会议论文  OAI收割
2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China
作者:  
Wang J.;  He X.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
A Multi-Step Gain Adjusting Strategy (MSGAS) of space camera was proposed  which was used to get higher SNR (Signal-Noise Rate) image. When the space camera working in poor light condition  the CCD signal was so weak that it's difficult to get a clear image  to reduce the quantization noise and improve the SNR  we must amplify the CCD signal first and then quantize. The MSGAS was achieved by adjusting the gain of the CCD (Charge Couple Device) signal processor step by step  the upper limit and lower limit were set  if the MDN (Mean Digital Number) of a fixed length image data was not between the lower and upper limit  the gain was adjusted step by step. In the experiment  the upper limit  lower limit and the step were set  and the result of the experiment showed that MSGAS was robust and SNR was improved from 28 to 39. 2009 IEEE.