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Gas Expansion Process in the Dynamic Vacuum Calibration 期刊论文
Journal of Shanghai Jiaotong University (Science), 2021, 卷号: 26, 期号: 2, 页码: 193-200
作者:  Cheng, Yongjun;  Chen, Shuping;  Wang, Chenghong;  Xi, Zhenhua;  Sun, Wenjun
收藏  |  浏览/下载：13/0  |  提交时间：2021/06/03
What can we learn from the tension between PLANCK and BICEP2 data? 期刊论文
中国科学(物理学·力学·天文学)(英文版), 2014, 期号: 8, 页码: 1431-1441
作者:  Li H(李虹);  Xia JQ(夏俊卿);  Zhang XM(张新民)
收藏  |  浏览/下载：15/0  |  提交时间：2015/12/15
中国科学院大连化学物理研究所知识库 其他
2013-10-21
中国科学院大连化学物理研究所
收藏  |  浏览/下载：24/0  |  提交时间：2013/10/25
高能物理研究所机构知识仓储 其他
2013-10-21
高能物理研究所
收藏  |  浏览/下载：28/0  |  提交时间：2013/10/25
Control of N/N2 species ratio in NO plasma for p-type doping of ZnO (EI CONFERENCE) 会议论文
Chen X.; Zhang Z.; Yao B.; Jiang M.; Wang S.; Li B.; Shan C.; Liu L.; Zhao D.; Shen D.
收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25
Nitrogen-doped ZnO thin films were grown on c-plane sapphire (Al 2O3) substrates via plasma-assisted molecular beam epitaxy using plasma activated nitric oxide (NO) as the oxygen source and dopant. X-ray diffraction measurements indicate that a small NO flux benefits the crystal quality of the thin films. Hall effect measurements indicate that the electron density of the ZnO films decreases gradually with decreasing NO flux  and the conduction reverses to p-type at a certain flux. Optical emission spectra indicate that the N atom content in the NO plasma increases with decreasing NO flux  and the origin of this is discussed. X-ray photoelectron spectroscopy measurements demonstrate that the number of N atom occupied O sites in the ZnO lattice increases correspondingly. 2011 American Institute of Physics.  
XMM-Newton observation of the eclipsing binary Algol 期刊论文
天文和天体物理学研究, 2011, 期号: 4, 页码: 457-470
作者:  Yang XJ(杨雪娟);  Lu FJ(卢方军);  Bernd Aschenbach;  Li Chen
收藏  |  浏览/下载：26/0  |  提交时间：2015/12/15
RF gun for an intense THz radiation source 期刊论文
2010, 2010
Gu Qiang; Zhao Zhen-Tang; Tong De-Chun; Chen Li-Fang; Xu Xiu-Min
收藏  |  浏览/下载：3/0
Benchmark calculation for the steady-state temperature distribution of the HTR-10 under full-power operation 期刊论文
2010, 2010
Fubing Chen; Yujie Dong; Yanhua Zheng; Lei Shi; Zuoyi Zhang
收藏  |  浏览/下载：4/0
Fabrication and photoluminescence of ZnS: Mn2+ nanowires/ZnO quantum dots/SiO2 heterostructure (EI CONFERENCE) 会议论文
Yang J.; Cao J.; Yang L.; Zhang Y.; Wang Y.; Liu X.; Wang D.; Wei M.; Gao M.; Lang J.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
In this paper  we demonstrated the encapsulation of ZnS: Mn2+ nanowires (NWs) and ZnO quantum dots (QDs) with a layer of mesoporous SiO 2 shell for the purpose of integrating dual emission property into one common nanostructure. The average diameter of ZnS: Mn2+ NWs  ZnO QDs  and ZnS: Mn2+ / ZnO@SiO2 heterostructure was about 10 nm  6 nm  and 22 nm  respectively. Within ZnS: Mn2+ / ZnO@SiO 2 nanocomposites  the intensity of the yellow-orange emission contributed by ZnS: Mn2+ NWs and the UV emission contributed by ZnO QDs was three and ten times higher than their individual components  respectively. The fluorescence intensity ratio of the dual emission can be tuned by adjusting the hydrolysis time of tetraethyl orthosilicate. The peak energy of the yellow-orange and UV emission showed blueshift and redshift as increasing the temperature  respectively. The anomalous enhancement of the integrated intensity for the UV emission with the temperature indicated that the high surface state density existing in ZnO QDs can overrun the influence of temperature quenching and even alter the photoluminescent properties. 2010 American Institute of Physics.  
Manufacture of 1.2m reaction bonded silicon carbide mirror blank CFID (EI CONFERENCE) 会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China
Zhang G.; Zhao R.; Zhao W.; Bao J.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25
Silicon carbide (SiC) is a new type candidate material for large-scale lightweight space mirror. Its low thermal distortion  high stiffness  fine optical quality and dimensional stability  make SiC an ideal material for large space born telescope. Since ten years Changchun institute optics  fine mechanics and physics (CIOMP) has developed reaction bonded SiC (RB-SiC) technology for space application  and can fabricate RB-SiC mirror with scale less than 1.0 meter for telescope. The green body is prepared with gel-casting method which is an attractive new ceramic forming process for making high-quality  complex-shaped ceramic parts. And then unmolding  drying  binder burning out  reacting bonded  the RB-SiC can be obtained. But with the development of space-born or ground telescope  the scale of primary mirror has exceeded 1.0 meter. So CIOMP has developed an assembly technique which called novel reaction-formed joint technology for larger RB-SiC mirror blank. The steps include joining of green bodies with mixture comprised of SiC particles and phenolic resin etc  firing  machining and sintering. Joining the 1.2 meter RB-SiC mirror blank by the novel reaction-formed joint technology. And testing the welding layer's performance  the results show that the thickness of 54-77m  the microstructure and thermal property can be comparable to the substrate and the mechanical property are excellent in bending strength of 307MPa. 2010 Copyright SPIE - The International Society for Optical Engineering.  

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