机构

• 地质与地球物理研究所 [3]
• 国家空间科学中心 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [4]
• 会议论文 [1]

发表日期

• 2023 [1]
• 2014 [2]
• 2009 [1]
• 2006 [1]

学科主题

• 空间物理 [1]

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Evaluation for effects of variable Martian upper atmosphere on ionospheric peak electron density based on the MGS RO observation 期刊论文  OAI收割 ICARUS, 2023, 卷号: 391, 页码: 11 作者:  Chen, Yiding;  Liu, Libo;  Le, Huijun;  Zhang, Hui;  Zhang, Ruilong   |  收藏  |  浏览/下载：26/0  |  提交时间：2023/03/31 Mars  Ionospheres  Peak electron density  Thermospheric scale height   Comparison between ionospheric character parameters retrieved from FORMOSAT3 measurement and ionosonde observation over China 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2014, 卷号: 57, 期号: 11, 页码: 3625-3632 作者:     |  收藏  |  浏览/下载：15/0  |  提交时间：2018/09/26 COSMIC  Ionosonde  The peak electron density  The peak height   Comparison between ionospheric character parameters retrieved from FORMOSAT3 measurement and ionosonde observation over China 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2014, 卷号: 57, 期号: 11, 页码: 3625-3632 作者:  Sun Ling-Feng;  Zhao Bi-Qiang;  Yue Xin-An;  Mao Tian   |  收藏  |  浏览/下载：24/0  |  提交时间：2018/09/26 COSMIC  Ionosonde  The peak electron density  The peak height   Seasonal and latitudinal differences of the saturation effect between ionospheric NmF2 and solar activity indices 期刊论文  OAI收割 Journal of Geophysical Research-Space Physics, 2009, 卷号: 114, 页码: A10303 Ma, R. P.; Xu, J. Y.; Wang, W. B.; Yuan, W. 收藏  |  浏览/下载：15/0  |  提交时间：2014/04/30 international reference ionosphere  peak electron-density  cycle  variations  global-model  radio noise  f-region  euv  fof2  winds  atmosphere   Excitonic properties of vertically aligned ZnO nanotubes under high-density excitation (EI CONFERENCE) 会议论文  OAI收割 Lu Y. M.; Liang H. W.; Shen D. Z.; Zhang Z. Z.; Zhang J. Y.; Zhao D. X.; Liu Y. C.; Fan X. W. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 In this paper  highly oriented and vertically arranged ZnO nanotubes are prepared on Al2O3 (0 0 0 1) substrate without employing any metal catalysts by plasma-assisted molecular beam epitaxy. The photoluminescence (PL) spectra at room temperature are studied under high excitation densities. Under lower excitation density (60 kW/cm2)  PL spectrum shows that one strong free exciton emission (FE) locates at 3.306 eV. As the excitation density increases up to 200 kW/cm2  a new emission peak (Pn) located at low-energy side of FE is attributed to the spontaneous emission due to an exciton-exciton (Ex-E x) scattering process from two ground state excitons  where one exciton is recombined by emitting a photon and the other is scattered into the excited states of n=2  3  4.... Under excitation density of 300 kW/cm 2  the stimulated emission originating from Ex-E x scattering is obtained. When the excitation density is above 580 kW/cm2  the emission from electron-hole plasma is observed in low-energy side of the P band and indicates a typical superradiation recombination processes with increasing excitation density. 2006 Elsevier B.V. All rights reserved.