机构

• 长春光学精密机械与物... [1]
• 中国科学院大学 [1]
• 自动化研究所 [1]

采集方式

• OAI收割 [2]
• iSwitch采集 [1]

内容类型

• 期刊论文 [2]
• 会议论文 [1]

发表日期

• 2016 [1]
• 2011 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 A multi-level text representation model within background knowledge based on human cognitive process for big data analysis 期刊论文  OAI收割 CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, 2016, 卷号: 19, 期号: 3, 页码: 1475-1487 作者:  Wei, Xiao;  Zhang, Jun;  Zeng, Daniel Dajun;  Li, Qing 收藏  |  浏览/下载：40/0  |  提交时间：2016/12/26 Text comprehension  Background knowledge  Text representation  Human cognitive process  Surface code  Text base  Situational model  Semantics   Space optical remote sensor of the CAE thermal control index calculation method (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China 作者:  Li L. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 The thermal control indicators CAE methods of Space optical remote sensor are analyzed in the presented work. We sat up a thermal optical analysis model for space optical remote sensor. By assuming fully covered by in-orbit temperature load  and using the finite element method for thermal deformation analysis  we obtained the optical remote sensor surface deformation and displacement under various thermal loading. Using ZERNIKE polynomial  wave was fitted to obtain ZERNIKE polynomial coefficients which were incorporated into the optical system design. Using CODE V optical calculation software  heat-ray machines under elastic deformation of the system point spread function  transfer function (MTF)  wave front differential (WFE) etc. were calculated. Image quality changes of remote sensors are discussed in variety assumed cases such as temperature loads of quality change. By repeated iteration  critical value of temperature fields meeting the design requirements are obtained for the optical system. Optical indicators were converged to the temperature field indicator  then reasonable indicators of thermal control for remote sensors were obtained. For the thermal control design  this method provided a reliable basis for design. (2011) Trans Tech Publications  Switzerland.   Mobility and ecological risk assessment of heavy metals in surface sediments of xiamen bay and its adjacent areas, china 期刊论文  iSwitch采集 Environmental earth sciences, 2010, 卷号: 60, 期号: 7, 页码: 1469-1479 作者:  Yan, Changzhou;  Li, Qingzhao;  Zhang, Xian;  Li, Guoxin 收藏  |  浏览/下载：32/0  |  提交时间：2019/05/10 Xiamen bay  Surface sediment  Heavy metals  Risk assessment code (rac)  Mean effects range median quotients (mermq)  Yuandang lagoon