中国科学院机构知识库网格系统: 检索

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	Modulus of Subgrade Reaction for Circular Tunnels considering Bedrock and Ground Surface 期刊论文 OAI收割 KSCE JOURNAL OF CIVIL ENGINEERING, 2023, 卷号: 27, 期号: 6, 页码: 2593 作者: Zhao, Wusheng; Xie, Peiyao; Chen, Weizhong; Qin, Changkun \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2023/08/02 Modulus of subgrade reaction Tunnel Bedrock Ground surface Deformation pattern
	Ground Surface Deformation in the Hanging Wall of the Jinshandian Underground Iron Mine in China 期刊论文 OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 期号: -, 页码: - 作者: Wang, Tianlong; Chen, Congxin; Xia, Kaizong; Zhang, Chuqiang; Wang, Yue \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2023/08/02 metal mine underground mining hanging wall in situ monitoring data discontinuities and faults ground surface deformation
	Three-Dimensional Numerical Modeling of Ground Deformation during Shield Tunneling Considering Principal Stress Rotation 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF GEOMECHANICS, 2021, 卷号: 21, 期号: 7, 页码: 10 作者: Ruan, Hang; Wang, Yuke; Wan, Yongshuai; Yu, Xiang; Zeng, Changnv \| 收藏 \| 浏览/下载：58/0 \| 提交时间：2021/08/11 Principal stress rotation Shield tunneling Ground surface deformation Cohesive soil Numerical method
	Characteristics of Surface Deformation Detected by X-band SAR Interferometry over Sichuan-Tibet Grid Connection Project Area, China SCI/SSCI论文 OAI收割 2015 作者: Meng Y. S.; Lan, H. X.; Li, L. P.; Wu, Y. M.; Li, Q. W. 收藏 \| 浏览/下载：29/0 \| 提交时间：2015/12/09 Sichuan-Tibet grid surface deformation PSI freeze-thaw cycle effect landslide permanent scatterers technique radar interferometry permafrost regions ground deformation plateau insar psi infrastructure subsidence
	Ground experiments on a liquid bridge facility for TG-2 space laboratory 会议论文 OAI收割 65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014, Toronto, ON, Canada, September 29, 2014 - October 3, 2014 作者: Duan L(段俐); Kang Q(康琦) 收藏 \| 浏览/下载：51/0 \| 提交时间：2017/05/27 Convection modes Critical temperature difference Ground experiments Oscillation frequency Space experiments Space laboratory Surface deformation Temperature differences
	Estimation of ground deformation caused by the earthquake (M7.2) in Japan, 2008, from the geomorphic image analysis of high resolution LiDAR DEMs 期刊论文 OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2011, 卷号: 8, 期号: 2, 页码: 239–245 Mukoyama, Sakae 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/08/12 Ground deformation Ground surface movement Digital Elevation Model(DEM) Geomorphic image analysis Japan
	Fuzzy system models (FSMs) for analysis of rock mass displacement caused by underground mining in soft rock strata 期刊论文 OAI收割 EXPERT SYSTEMS WITH APPLICATIONS, 2009, 卷号: 36, 期号: 3, 页码: 4637-4645 作者: Wen-Xiu, Li; Hai-Ning, Li 收藏 \| 浏览/下载：24/0 \| 提交时间：2017/04/11 FUZZY sets Fuzzy systems Fuzzy probability measures Membership function Underground mining Rock mass displacement and deformation Surface ground subsidence
	Research on the support structure of the primary mirror of large-aperture telescope (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China Yang W.; Jingxu Z. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 Large-aperture telescope can be used in surveying battlefield researching landform searching object real-time monitoring imaging detecting and identifying spatial targets and so on. A large-aperture telescope for achieving high resolution power is designed to monitor spatial target and image in real time. Real-time monitoring plays an important role in military conflicts. The orbit parameter of object quantity geometrical shape parameter and so on can be obtained by detect spatial target. With the development of optical technology people require larger aperture in optics-electronic (OE) system. By increasing optical aperture the ability of collecting light and resolution power in the system can be enhanced. But the support structure of the primary mirror of large-aperture telescope will be a very difficult problem. With the increase of primary mirror aperture the weight of the primary mirror will become larger than before. The root mean square (rms) of the primary mirror is affected by many factors such as deadweight deformation of heat environment and so on. Due to the primary mirror of telescope is an important component of telescope system. By reducing the weight of primary mirror precision of the system is ensured. During the designing phase one can consider the supporting project of the primary mirror synthetically and analyze it roundly according to technical requirement of optical system and the effect factors. The final structural design can be reasonable. In an astronomical telescope the surface of reflector is an important part for collecting dark radiation of celestial bodies. Its surface shape will have an effect on collecting efficiency of telescope radiant energy directly. So the rms must be very high. Optical system of large aperture small wavelength and small focus can receive maximal light intensity. For ground-based optical astronomical telescope the design proposed in the paper can satisfy the requirement of the possible minimum atmosphere seeing at astronomical observatory site and exert the use efficiency of the telescope adequately. So the accuracy of the traditional surface of reflector can assure that 90% of all the light energy can be focused on within the angle diameter range of the minimum atmosphere seeing then 100% of light energy should be focused on the angle diameter range of minimum atmosphere seeing. Because the rms of mirror is very high precise surface machining and accurate the support of mirror are very important tasks during designing and manufacturing the telescope. In the paper various support techniques of a large-aperture telescope primary mirror are discussed and a 3.5 meter telescope system at the Starfire Optical Range (SOR) overviewed simply which was operated by the Directed Energy Directorate of the Air Force Research Laboratory Kirtland AFB NM USA from the ground-based O-E system for the observations of spatial target. We also analyze Theoretical elastic deformation of the Steward Observatory 2.3 meter mirror is analyzed.