中国科学院机构知识库网格系统: 检索

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	TSD-Truncated Structurally Aware Distance for Small Pest Object Detection 期刊论文 OAI收割 SENSORS, 2022, 卷号: 22 作者: Huang, Xiaowen; Dong, Jun; Zhu, Zhijia; Ma, Dong; Ma, Fan \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2022/12/23 small object detection pest detection truncated structurally aware distance truncated structurally aware loss faster R-CNN
	Measurement of protein size in concentrated solutions by small angle X-ray scattering 期刊论文 OAI收割 PROTEIN SCIENCE, 2016, 卷号: 25, 期号: 8, 页码: 1385-1389 作者: Liu, J; Liu J(刘俊); Li ZH(李志宏); Wei YR(魏彦茹); Wang WJ(王文佳) \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2017/07/24 protein size inter-particle interference distance distribution function small angle X-ray scattering
	Small and flat worlds: A complex network analysis of international trade in crude oil SCI/SSCI论文 OAI收割 2015 作者: Yang Y.; Poon, J. P. H.; Liu, Y.; Bagchi-Sen, S. \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2017/11/09 Crude oil trade Small world Flat world Complex networks GIS (geographical information system) evolution distance puzzle
	Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE) 会议论文 OAI收割作者: Lin G.-Y. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution high spectral resolution and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating which make the anterior Wadsworth condition fulfilling each wavelength is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.
	Measurement of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section in pp collisions at root s=7 TeV and first determination of the strong coupling constant in the TeV range 期刊论文 OAI收割 EUROPEAN PHYSICAL JOURNAL C, 2013, 卷号: 73, 期号: 10 作者: CMS Collaboration 收藏 \| 浏览/下载：10/0 \| 提交时间：2015/12/02 SMALL-DISTANCE-BEHAVIOUR PARTON DISTRIBUTIONS FIELD THEORY LHC
	Experimental Studies of Sound Attenuation in Seabed Sediments on Column Sample Length Scale 期刊论文 OAI收割 MARINE GEORESOURCES & GEOTECHNOLOGY, 2013, 卷号: 31, 期号: 2, 页码: 176-189 [Long, Jian-Jun] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China; [Long, Jian-Jun] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China 收藏 \| 浏览/下载：21/0 \| 提交时间：2015/01/22 acoustic attenuation measurement column sample length scale seabed sediment small distance sound attenuation
	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：39/0 \| 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
	基于小型无人直升机的三维地形检测研究学位论文 OAI收割工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2006 作者: 刘静收藏 \| 浏览/下载：58/0 \| 提交时间：2015/09/02 三维地形检测小型无人直升机 GPS 嵌入式系统激光测距仪 3D terrain detection Small unmanned helicopter GPS equipment Embedded system with ARM 9 Distance laser sensor