中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共3条，第1-3条

帮助

条数/页：排序方式：
	Spatial understanding of historical and future landslide variation in Africa 期刊论文 OAI收割 NATURAL HAZARDS, 2023, 页码: 29 作者: Nahayo, Lamek; Peng, Cui; Lei, Yu; Tan, Rongzhi \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2023/11/16 Africa Gain information ratio Landslide susceptibility Urbanization
	Security monitoring method for ICS based on information gain ratio and maximum entropy model 会议论文 OAI收割 Shanghai, China, November 6-8, 2020 作者: Li SG(李声刚); Shang WL(尚文利); Chen CY(陈春雨); Lu, Yan; Dong, Zhiwei \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2021/03/14 Industrial control system Information gain ratio Maximum entropy model Security monitoring
	Autocollimation form dual-frequency laser diffraction grating interferometer design and analysis (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Wang C.-G. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 Propose a new measurement system of autocollimation form laser grating heterodyne interferometer. Take grating diffraction and polarization optics as theoretical foundation second furthermore combined with electronics knowledge to analyze the system. First make use of autocollimation diffraction of grating measurement information obtained by dual-frequency laser belongs to ac signal the interferometer measurement system take grating pitch as measuring datum the structure is simple possess great gain and high signal-noise ratio therefore stable completely overcome the disadvantages of DC level drift caused by light intensity variation of single-frequency laser system can achieve nanometer resolution. 2010 IEEE. reduce the impact of environmental factors easy to install and debug measurement error is small