中国科学院机构知识库网格
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浏览/检索结果: 共8条,第1-8条 帮助

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Multi-Walled Carbon Nanotubes for Magnetic Solid-Phase Extraction of Six Heterocyclic Pesticides in Environmental Water Samples Followed by HPLC-DAD Determination 期刊论文  OAI收割
MATERIALS, 2020, 卷号: 13, 期号: 24, 页码: 14
作者:  
Ma, Jiping;  Hou, Liwei;  Wu, Gege;  Wang, Liyan;  Wang, Xiaoyan
  |  收藏  |  浏览/下载:29/0  |  提交时间:2021/06/07
Poly(I:C) Challenge Alters Brain Expression of Oligodendroglia-Related Genes of Adult Progeny in a Mouse Model of Maternal Immune Activation 期刊论文  OAI收割
FRONTIERS IN MOLECULAR NEUROSCIENCE, 2020, 卷号: 13, 页码: 115
作者:  
Zhang, Xiao-Fan;  Chen, Ting;  Yan, Aifen;  Xiao, Jia;  Xie, Yong-Li
  |  收藏  |  浏览/下载:76/0  |  提交时间:2020/09/22
Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文  OAI收割
The Astrophysical Journal, 2020, 卷号: 901, 页码: L7
作者:  
HXMT
  |  收藏  |  浏览/下载:24/0  |  提交时间:2022/02/08
Radio transient sources  Magnetars  Soft gamma-ray repeaters  2008  992  1471  Astrophysics - High Energy Astrophysical Phenomena  Astrophysics - Instrumentation and Methods for Astrophysics  Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of AJ = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 1014 Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to RNIR ? 0.025 (fluence index ?0.35).  
基于天然磁铁矿的新型“类核壳”磁性环境吸附材料的构建及性能研究 学位论文  OAI收割
: 中国科学院广州地球化学研究所, 2019
作者:  
傅浩洋
  |  收藏  |  浏览/下载:30/0  |  提交时间:2019/07/17
Effect of Ti on the microstructure and mechanical properties of MAG multipass weld metal 期刊论文  OAI收割
中国焊接:英文版, 2011, 卷号: 20.0, 期号: 1.0, 页码: 70-75
作者:  
Wang Xin;  Lu Shanping;  Li Dianzhong;  Li Yiyi
  |  收藏  |  浏览/下载:12/0  |  提交时间:2021/02/02
Studies on interaction of bovine serum albumin with indo-1 by fluorescence spectroscopic method 期刊论文  OAI收割
chemical journal of chinese universities-chinese    , 2007, 卷号: 28, 期号: 2, 页码: 227-233
Bai HX; Yang C; Yang XR
收藏  |  浏览/下载:162/19  |  提交时间:2010/04/14
抗菌肽的分离、合成及储存研究(棉铃虫抗菌肽的分离、HEX-MAG的合成及两种抗菌肽保藏方法的研究) 学位论文  OAI收割
硕士, 2006
作者:  
李桂平
收藏  |  浏览/下载:19/0  |  提交时间:2017/08/31
抗菌肽的分离、合成及储存研究(棉铃虫抗菌肽的分离、HEX-MAG的合成及两种抗菌肽保藏方法的研究) 学位论文  OAI收割
硕士, 2006
作者:  
李桂平
收藏  |  浏览/下载:13/0  |  提交时间:2017/08/31