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	Progress, open questions and application prospects of analytical techniques for refractory elements and representative radioisotope systems 期刊论文 OAI收割 ACTA PETROLOGICA SINICA, 2022, 卷号: 38, 期号: 6, 页码: 1565-1576 作者: Xu JiFeng; Chu ZhuYin; Li Jie; Wang GuiQin; Li Chao \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2023/04/06 Refractory element Radiogenic isotope Analytical technique Isotopic dating Isotopic tracing
	Comparison and simulation of subpixel imaging modes for linear CCD (EI CONFERENCE) 会议论文 OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China 作者: Li Y.; He B.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：37/0 \| 提交时间：2013/03/25 Subpixel technique of linear CCD is effective to enhance the spatial resolution without increasing the focal length of optics and reducing the pixel size. To compare image quality of two main subpixel imaging modes quincunx sampling and four-point sampling a method to quantitatively evaluate image quality of subpixel based on MTF was proposed. The MTF of quincunx and four-point sampling modes were derived. Analytical results shows that theoretical limiting resolution of quincunx sampling and four-point sampling is improved to 1.4 and 1.86 times respectively and MTF values at Nyquist frequency of two modes are increased by 0.1106 and 0.1679 respectively. MTFA in (0 0.5) of two subpixel imaging modes were calculated and results illustrates that four-point sampling offers much more improvement with image quality than quincunx sampling at the cost of double amount of data. A model for simulating subpixel imaging using Matlab was established and simulation results of spoke target verify the theoretical analysis. (2012) Trans Tech Publications Switzerland.
	Interaction of oblique waves with an array of long horizontal circular cylinders 期刊论文 OAI收割 science in china series e-technological sciences, 2007, 卷号: 50, 期号: 4, 页码: 490-509 作者: Shen YongMing; Zheng YongHong; Ng Chiu-On 收藏 \| 浏览/下载：18/0 \| 提交时间：2016/10/27 scattering and radiation water waves analytical technique hydrodynamic characteristics
	Study of dynamic response on a MOEMS 22 optical switch (EI CONFERENCE) 会议论文 OAI收割 Optical Transmission, Switching, and Subsystems II, November 9, 2004 - November 11, 2004, Beijing, China 作者: Wang G.; Chen W. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 The MOEMS 22 optical switch with slant lower electrode and with torsion beam on silicon is designed and analyzed theoretically. Analytical formulae for the squeeze film damping coefficient and the squeeze film damping moment on the cantilever beam of the optical switch are derived. Based on the torsion dynamics theory the technique and relative results are presented for analyzing the actuating voltage and the switch time. The optimized result of parameters is as: length width and thickness of the torsion beam are 700 12 and 10 m length and width of the cantilever beam are 1900 and 1000 m length and width of the balance beam are 100 and 1000 m shortest spacing between the upper and lower electrodes is 0.05 m and highness of the lower electrode is 55 m respectively. The actuating voltage is less than 10 V and the switching time of Ton and Toff are 1.30ms and 1.25ms respectively. The computed results show that the air squeeze film damping is an important factor for the study of dynamic response on MOEMS optical switch.