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	Experimental Study of the Heat-Transfer Performance of an Extra-Long Gravity-Assisted Heat Pipe Aiming at Geothermal Heat Exploitation 期刊论文 OAI收割 SUSTAINABILITY, 2021, 卷号: 13, 期号: 22, 页码: 16 作者: Cen, Jiwen; Li, Feng; Li, Tingliang; Huang, Wenbo; Chen, Juanwen \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2022/09/22 super-long gravity heat pipe geothermal energy exploitation phase-change heat transfer two phase flow length-diameter ratio
	ROOT GROWTH AND MORPHOLOGY OF SWITCHGRASS (PANICUM VIRGATUM L.) AND BUSH CLOVER (LESPEDEZA DAVURICA S.) IN MIXED PLANTATION UNDER VARYING SOIL WATER AND PHOSPHORUS SUPPLY CONDITIONS 期刊论文 OAI收割 PAKISTAN JOURNAL OF BOTANY, 2021, 卷号: 53, 期号: 4, 页码: 1227-1237 作者: Wang, Shi-Qi; Liu, Jin-Biao; Kang, Ji-Yue; Xu, Bing-Cheng; Chen, Ying-Long \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2021/07/09 Mixture ratio Root competition Root biomass Root diameter class Specific root length
	Analysis of suitable private-secondary-main sewer diameters in rural areas based on cost model and hydraulic calculation 期刊论文 OAI收割 JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2021, 卷号: 281, 页码: - 作者: Li, Wenkai; Zheng, Tianlong; Ma, Yingqun; Liu, Junxin \| 收藏 \| 浏览/下载：9/0 \| 提交时间：2021/12/23 Cost Household number Length/width ratio Rural sewer Small diameter
	Semi-analytical model of the vertical impact of a 316 stainless steel rod 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2020, 卷号: 146, 页码: 103694 作者: Ye X(叶璇); Hu JQ(胡剑桥); Song JR(宋晶如); Liu XM(刘小明); Wei YG(魏悦广) \| 收藏 \| 浏览/下载：223/0 \| 提交时间：2020/12/28 Vertical impact DYNAMIC SPHERICAL INDENTATION Length/diameter ratio NUMERICAL-SIMULATION Elasto-plastic contact PENETRATION Equivalent spring model CONTACT GLASS
	Statistical size scaling of compressive strength of quasi-brittle materials incorporating specimen length-to-diameter ratio effect 期刊论文 OAI收割 THEORETICAL AND APPLIED FRACTURE MECHANICS, 2019, 卷号: 104, 页码: 9 作者: Lei WS; Qian GA(钱桂安); Yu ZS; Berto F \| 收藏 \| 浏览/下载：139/0 \| 提交时间：2020/03/11 Unconfined compressive strength Quasi-brittle materials Statistical size scaling Volume effect Length-to-diameter ratio effect
	Study on ultra-light secondary baffle for coaxial two-mirror 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: Zhang L.; Zhang L. 收藏 \| 浏览/下载：61/0 \| 提交时间：2013/03/25 The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope the structure should have high stiffness and high reliability and light weight. Compared with invar aluminum alloy and titanium alloy carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages such as ultra-light weight high stiffness and dimensional stability etc. The optimization method and the baffle design can be helpful to other coaxial telescopes such as Cassegrain Gregorian and their subdivisions. 2012 IEEE.
	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.