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浏览/检索结果: 共106条，第1-10条 帮助

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A New Space-to-Ground Microwave-Based Two-Way Time Synchronization Method for Next-Generation Space Atomic Clocks 期刊论文  OAI收割
REMOTE SENSING, 2022, 卷号: 14, 期号: 3, 页码: 15
作者:  Guo, Yanming;  Gao, Shuaihe;  Bai, Yan;  Pan, Zhibing;  Liu, Yinhua
  |  收藏  |  浏览/下载：34/0  |  提交时间：2022/08/15
Room temperature bilayer water structures on a rutile TiO2(110) surface: hydrophobic or hydrophilic? 期刊论文  OAI收割
CHEMICAL SCIENCE, 2022, 卷号: 13, 期号: 35, 页码: 10546-10554
作者:  Qu, Mengyang;  Huang, Gang;  Liu, Xinyi;  Nie, Xuechuan;  Qi, Chonghai
  |  收藏  |  浏览/下载：37/0  |  提交时间：2023/01/16
Ionic liquid-air interface probed by sum frequency generation spectroscopy and molecular dynamics simulation: influence of alkyl chain length and anion volume 期刊论文  OAI收割
MOLECULAR SIMULATION, 2021, 页码: 11
作者:  Huo, Feng;  Ding, Jian;  Tong, Jiahuan;  He, Hongyan
  |  收藏  |  浏览/下载：32/0  |  提交时间：2022/06/15
Remote Sensing Image Generation From Audio 期刊论文  OAI收割
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2021, 卷号: 18, 期号: 6, 页码: 994-998
作者:  Zheng, Zhiyuan;  Chen, Jun;  Zheng, Xiangtao;  Lu, Xiaoqiang
  |  收藏  |  浏览/下载：48/0  |  提交时间：2021/06/21
On the Terrestrial Gamma Ray Flashes Preceding Narrow Bipolar Events 期刊论文  OAI收割
Geophysical Research Letters, 2021, 卷号: 48, 页码: e92160
作者:  HXMT
  |  收藏  |  浏览/下载：28/0  |  提交时间：2022/02/08
low frequency magnetic sferics  narrow bipolar events (NBEs)  relativistic feedback mechanism  Terrestrial Gamma ray Flashes (TGFs)  Abstract: Narrow bipolar events (NBEs) are occasionally reported to occur within a few ms after Terrestrial Gamma ray Flashes (TGFs), while the formation mechanism remains mysterious partially due to the lack of sufficient observations. Here, nine more TGFs of this scenario are reported with concurrent LF sferics and lightning location data. The gamma ray production in these TGFs preceded the occurrence of NBEs by a minimum of 60 µs up to 13.5 ms, and no other fast leader discharge was found within 20 ms before the TGF. The TGF preceded positive NBEs occurred at altitudes of 8.6-11 km in thunderstorms, likely in the high electric field (E field) region of lightning initiation. The analyses show that the NBE preceding TGFs bear harder energy spectrum with larger proportion of high energy photons than EIP related TGFs produced in association with lightning leader. Our findings support the relativistic feedback mechanism of gamma ray generation in the large scale thunderstorm E field.  
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：27/0  |  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.  
5 Gbaud QPSK coherent transmission in the mid-infrared 期刊论文  OAI收割
Optics Communications, 2020, 卷号: 466
作者:  Wang, Wei;  Zheng, Yunqiang;  Xie, Xiaoping;  Su, Yulong;  Huang, Xinning
  |  收藏  |  浏览/下载：97/0  |  提交时间：2020/03/23
Self-Raman Nd-doped vanadate laser: a pump source of organic crystal based difference frequency generation 期刊论文  OAI收割
Journal of Modern Optics, 2020, 卷号: 67, 期号: 10, 页码: 914-919
作者:  Liu PX(刘鹏翔);  Qi F(祁峰);  Li WF(李惟帆);  Liu ZY(刘朝阳);  Wang YL(汪业龙)
  |  收藏  |  浏览/下载：49/0  |  提交时间：2020/07/18
A broadband sum-frequency generation vibrational spectrometer to probe adsorbed molecules on nanoparticles 期刊论文  OAI收割
SURFACE SCIENCE, 2019, 卷号: 689, 页码: 7
作者:  Luo, Ting;  Zhang, Ruidan;  Peng, Xingxing;  Liu, Xinting;  Zhou, Chuanyao
  |  收藏  |  浏览/下载：90/0  |  提交时间：2019/12/02
Time and frequency transfer using BDS-2 and BDS-3 carrier-phase observations 期刊论文  OAI收割
IET RADAR SONAR AND NAVIGATION, 2019, 卷号: 13, 期号: 8, 页码: 1249-1255
作者:  Zhang, Pengfei;  Tu, Rui;  Zhang, Rui;  Liu, Na;  Gao, Yuping
  |  收藏  |  浏览/下载：24/0  |  提交时间：2021/11/29