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	A hybrid kinetic WENO scheme for compressible flow simulations 会议论文 OAI收割 Barcelona,Spain, July 9-13, 2018 作者: Liu HW(刘洪伟); Yu ZP(于长平); Li XL(李新亮) \| 收藏 \| 浏览/下载：40/0 \| 提交时间：2018/11/09 Gas Kinetic Theory Numerical Dissipation Weno Method Hybrid Numerical Flux High Order Schemes
	Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE) 会议论文 OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者: Wang D. 收藏 \| 浏览/下载：37/0 \| 提交时间：2013/03/25 The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision a focusing mechanism is needed. To majority of large space-based telescopes and the scheme design is reasonable and practicable. 2012 IEEE. the general way to do this would be to use a reflector which was located in the backfocal distance. One of typical schemes of this mechanism was introduced however because of the big axial size the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced which has such advantages of small size high accuracy and low mass. The design and test methods had been discussed. According to the results the repeatability positioning accuracy is 0.0025mm
	A 5th order monotonicity-preserving upwind compact difference scheme 期刊论文 OAI收割 Science China, Physics, Mechanics & Astronomy, 2011, 卷号: 54, 期号: 3, 页码: 511-522 作者: He ZW(何志伟); Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文) 收藏 \| 浏览/下载：58/0 \| 提交时间：2012/04/01 Upwind Compact Scheme Monotonicity-Preserving Compressible Flows Shock Capturing Scheme Hyperbolic Conservation-Laws Essentially Nonoscillatory Schemes Shock-Turbulence Interaction High-Resolution Schemes High-Order Efficient Implementation Flow
	A Cip/Multi-Moment Finite Volume Method For Shallow Water Equations With Source Terms 期刊论文 OAI收割 International Journal for Numerical Methods In Fluids, 2008, 页码: 2245-2270 作者: Akoh R; Ii S; Xiao F(肖锋) 收藏 \| 浏览/下载：786/42 \| 提交时间：2009/08/03 Shallow Water Equations Source Terms Finite Volume Method High-Order Accuracy Cip Multi-Moment Method Of Characteristics Incompressible Flows Unified Formulation Weno Schemes Simulations Order Transport
	The compression and storage method of the same kind of medical images-DPCM (EI CONFERENCE) 会议论文 OAI收割 4th International Conference on Photonics and Imaging in Biology and Medicine, September 3, 2005 - September 6, 2005, Tianjin, China 作者: Liu H.; Liu H.; Liu H. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 Medical imaging has started to take advantage of digital technology opening the way for advanced medical imaging and teleradiology. Medical images however require large amounts of memory. At over 1 million bytes per image a typical hospital needs a staggering amount of memory storage (over one trillion bytes per year) and transmitting an image over a network (even the promised superhighway) could take minutes - too slow for interactive teleradiology. This calls for image compression to reduce significantly the amount of data needed to represent an image. Several compression techniques with different compression ratio have been developed. However the lossless techniques which allow for perfect reconstruction of the original images yield modest compression ratio while the techniques that yield higher compression ratio are lossy that is the original image is reconstructed only approximately Medical imaging poses the great challenge of having compression algorithms that are lossless (for diagnostic and legal reasons) and yet have high compression ratio for reduced storage and transmission time. To meet this challenge we are developing and studying some compression schemes which are either strictly lossless or diagnostically lossless taking advantage of the peculiarities of medical images and of the medical practice. In order to increase the Signal to-Noise Ratio (SNR) by exploitation of correlations within the source signal a method of combining differential pulse code modulation (DPCM) is presented.