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	Structure buckling reliability analysis of supercavitating projectile (EI CONFERENCE) 会议论文 OAI收割 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China 作者: Zhou L. 收藏 \| 浏览/下载：13/0 \| 提交时间：2013/03/25 Because the underwater velocity of supercavitating projectile is very high its structure undergo high longitudinal force. It is necessary to perform structure buckling reliability analysis because the randomicity of structural own parameters and flow parameters should be considered. Critical buckling load of supercavitating projectile is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each random variable are deduced and structural buckling reliability index is calculated by limit step length iteration method. Numerical results show that the critical buckling load and structural buckling reliability index increase with the increase of the ratio of base diameter to cavitator diameter. And structural buckling reliability index increase with the decrease of velocity coefficient. 2011 IEEE.
	Light Propagation in Curved Silver Nanowire Plasmonic Waveguides 期刊论文 OAI收割 NANO LETTERS, 2011, 卷号: 11, 期号: 4, 页码: 1603 Wang, WH; Yang, Q; Fan, FR; Xu, HX; Wang, ZL 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/09/18 ELECTROMAGNETIC ENERGY-TRANSPORT SUBWAVELENGTH-DIAMETER SILICA SURFACE-PLASMON METALLIC NANOWIRES THIN-FILMS ELECTRICAL DETECTION DIFFRACTION LIMIT OPTICAL PLASMONS LOSSES EXCITATION
	Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China 作者: Zhao S.; Tian Y.-Z.; Liu L.-S.; Guo J.; Zhang H.-Y. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 In order to lead the laser beam transmit in the atmosphere convergently an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly the laser was collimated by a beam expander then the near-parallel laser beam was transmitted with a Galileo telescope system and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform so the focus of the system changed due to the tiny displacement of the concave lens. Secondly the average power of the laser spot can be measured using power meter the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm it is 10.43% of the total diameter of the laser spot. At last the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit attenuation in the atmosphere geometrical aberration of optical system and the diffraction limit and the geometrical aberration are significant in the three factors above so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.
	A density-dependent matrix model and its applications in optimizing harvest schemes 期刊论文 OAI收割 SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES, 2006, 卷号: 49, 页码: 108-117 作者: Wang, F; Dai, LM; Bai, JW; Li, YS; Shao, GF, Purdue Univ, Dept Forestry & Nat Resources, W Lafayette, IN 47907 USA \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2011/09/23 Uneven-aged Forestry Diameter Transition Model Harvesting Intensity Diameter Limit Sustainable Forest Management
	A density-dependent matrix model and its applications in optimizing harvest schemes 期刊论文 OAI收割 SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES, 2006, 卷号: 49, 页码: 108-117 Shao, GF; Wang, F; Dai, LM; Bai, JW; Li, YS 收藏 \| 浏览/下载：32/0 \| 提交时间：2011/09/23 uneven-aged forestry diameter transition model harvesting intensity diameter limit sustainable forest management