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Analysis and simulation of the effect of large optical range difference of common path coherent-dispersion spectrometer on the detection of exoplanet radial velocities 期刊论文  OAI收割
Optics Communications, 2024, 卷号: 561
作者:  
Guan, Shouxin;  Liu, Bin;  Chen, Shasha;  Wu, Yinhua;  Wang, Feicheng
  |  收藏  |  浏览/下载:32/0  |  提交时间:2024/07/17
Bivariate Thiele-Like Rational Interpolation Continued Fractions with Parameters Based on Virtual Points 期刊论文  OAI收割
MATHEMATICS, 2020, 卷号: 8
作者:  
Zou, Le;  Song, Liangtu;  Wang, Xiaofeng;  Chen, Yanping;  Zhang, Chen
  |  收藏  |  浏览/下载:51/0  |  提交时间:2020/11/26
Simultaneous identification of diffusion coefficient, spacewise dependent source and initial value for one-dimensional heat equation 期刊论文  OAI收割
MATHEMATICAL METHODS IN THE APPLIED SCIENCES, 2017, 卷号: 40, 期号: 10, 页码: 3552-3565
作者:  
Zhao, Zhi-Xue;  Banda, Mapundi K.;  Guo, Bao-Zhu
  |  收藏  |  浏览/下载:28/0  |  提交时间:2018/07/30
Assessment of surface roughness by use of soft x-ray scattering (EI CONFERENCE) 会议论文  OAI收割
Soft X-Ray Lasers and Applications VIII, August 4, 2009 - August 6, 2009, San Diego, CA, United states
Yan-li M.; Yong-gang W.; Shu-yan C.; Bo C.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
A soft x-ray reflectometer with laser produced plasma source has been designed  which can work from wavelength 8nm to 30 nm and has high performance. Using the soft x-ray reflectometer above  the scattering light distribution of silicon and zerodur mirrors which have super-smooth surfaces could be measured at different incidence angle and different wavelength. The measurement when the incidence angle is 2 degree and the wavelength is 1 lnm has been given in this paper. A surface scattering theory of soft x-ray grazing incidence optics based on linear system theory and an inverse scattering mathematical model is introduced. The vector scattering theory of soft x-ray scattering also is stated in detail. The scattering data are analyzed by both the methods above respectively to give information about the surface profiles. On the other hand  both the two samples are measured by WYKO surface profiler  and the surface roughness of the silicon and zerodur mirror is 1.3 nm and 1.5nm respectively. The calculated results are in quantitative agreement with those measured by WYKO surface profiler  which indicates that soft x-ray scattering is a very useful tool for the evaluation of highly polished surfaces. But there still some difference among the results of different theory and WYKO  and the possible reasons of such difference have been discussed in detail. 2009 SPIE.  
parallel preconditioners for large scale partial difference equation systems 期刊论文  OAI收割
Elsevier, 2009, 卷号: 226, 期号: 1, 页码: 125-135
Sun Jia-Chang; Cao Jianwen; Yang Chao
  |  收藏  |  浏览/下载:21/0  |  提交时间:2010/08/24