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	Review on the research of space-based direct imaging technologies for exoplanets detection 会议论文 OAI收割 Beijing, China, 2019-07-07 作者: Hu, Bin; Li, Chuang; Li, Xuyang \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2020/03/04 exoplanets detection direct imaging high contrast ratio space-based nulling interferometry
	Fabrication of absorption gratings with x-ray lithography for x-ray phase contrast imaging 期刊论文 iSwitch采集 International journal of modern physics b, 2018, 卷号: 32, 期号: 13, 页码: 8 作者: Wang, Bo; Wang, Yu-Ting; Yi, Fu-Ting; Zhang, Tian-Chong; liu, Jing 收藏 \| 浏览/下载：51/0 \| 提交时间：2019/04/23 X-ray phase contrast imaging X-ray lithography High-aspect-ratio
	Fabrication of absorption gratings with X-ray lithography for X-ray phase contrast imaging 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2018, 卷号: 32, 期号: 13, 页码: 1850163 作者: Wang, B; Wang B(王波); Wang YT(王雨婷); Yi FT(伊福廷); Zhang TC(张天冲) \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2019/09/24 X-ray phase contrast imaging X-ray lithography high-aspect-ratio
	The application of adaptive enhancement algorithm based on gray entropy in mammary gland CR image (EI CONFERENCE) 会议论文 OAI收割 2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012, April 21, 2012 - April 23, 2012, Three Gorges, China Zhang M.-H.; Zhang Y.-Y. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Mammary gland is composed entirely of soft tissue with approximate density therefore mammary gland CR medicine radiation image presents a low contrast and slight difference changes may be a manifestation of tumor so it is necessary to enhance mammary gland CR image to improve its visual quality in order to meet the demands of doctor's clinical diagnosis. However the general enhancement algorithms over enhance the contrast and noise due to image details lost aiming at the defects a mammary gland CR medicine image adaptive enhancement arithmetic based on image gray entropy is put forward. The arithmetic adapts dizzy image to magnify selected spatial frequency response in order to enhance the edge details of mammary gland CR images. It can adjust weighted factor K according to image gray characteristics namely pixel gray entropy. Experiments results demonstrate that mammary gland CR image enhanced by the algorithm has abundant details and high signal-to-noise ratio moreover CR image enhanced has good visual effect. So the method is effective and fit for enhancing CR medical radiation image edge details. 2012 IEEE.
	The research of digltal CR medicine image adapitive enhancement method (EI CONFERENCE) 会议论文 OAI收割 4th International Conference on Mechanical and Electrical Technology, ICMET 2012, July 24, 2012 - July 26, 2012, Kuala Lumpur, Malaysia Ming-Hui Z.; Yao-Yu Z. 收藏 \| 浏览/下载：66/0 \| 提交时间：2013/03/25 Digital CR medicine radiation image is in doctor's favor and has became medicine imaging technology new hot spot because of its high gray contrast powerful computer disposal function little radiation dosage non-film diagnosis different area consultation. But degradation of digital X-ray medical image such as low contrast and blurring during radiographic imaging caused by complexity of body tissue and effects of X-ray scattering and electrical noise etc. can worsen the results of analysis and diagnosis. So it is usually needed that CR medicine image is enhanced to improve its vision quality and easy to doctor's more accurate diagnosis. The general enhancement algorithms over enhancing the contrast and lose image details aiming at the defects an enhancement algorithm for CR image is proposed based on the ratio of deviation to mean of domain. The arithmetic enhance CR image edge details by adjusting factor K based on the ratio of deviation to mean of domain of CR image. Experiment results demonstrate that the algorithm enhances CR image detail and CR image enhanced has good visual effect the adaptive enhancement method is fit for CR medicine image. (2012) Trans Tech Publications Switzerland.
	V-shaped electro-optic characteristics in FLC gels (EI CONFERENCE) 会议论文 OAI收割作者: Li J.; Li J.; Li J.; Xuan L. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 The effects of polymer network formed under UV irradiation with electric field application ( 50V 5Hz) to ferroelectric liquid crystal (FLC) molecules orientation and electrooptic characteristics have been studied. The polymer network formed in SmC*phase is anisotropic and fibrils-like and a typical striped texture was observed in the cell. The FLC gels exhibit a symmetric V-shaped electrooptic characteristics with thresholdless voltage and high contrast ratio (40:1). A theory explanation of the unique properties is given by establishing a molecular orientation model and conducting a computer simulation. A good fitting of the electrooptic dynamic response of FLC gels has been obtained by introducing a potential (bulk anchoring energy) originated from the photo-cured polymer network. 2002 Taylor Francis.