中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共9条,第1-9条 帮助

条数/页: 排序方式:
The chained effects of earlier vegetation activities and summer droughts on ecosystem productivity on the Tibetan Plateau 期刊论文  OAI收割
AGRICULTURAL AND FOREST METEOROLOGY, 2022, 卷号: 321, 页码: 13
作者:  
Chen, Ning;  Zhang, Yangjian;  Song, Changchun;  Xu, Mingjie;  Zhang, Tao
  |  收藏  |  浏览/下载:47/0  |  提交时间:2022/09/21
The chained effects of earlier vegetation activities and summer droughts on ecosystem productivity on the Tibetan Plateau 期刊论文  OAI收割
AGRICULTURAL AND FOREST METEOROLOGY, 2022, 卷号: 321, 页码: 13
作者:  
Chen, Ning;  Zhang, Yangjian;  Song, Changchun;  Xu, Mingjie;  Zhang, Tao
  |  收藏  |  浏览/下载:40/0  |  提交时间:2022/09/21
Late Paleozoic south-ward accretionary polarity of the eastern Junggar orogenic belt: insight from the Dajiashan and other A-type granites 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2008, 卷号: 24, 期号: 4, 页码: 733-742
作者:  
Mao QiGui;  Xiao WenJiao;  Han ChunMing;  Yuan Chao;  Sun Min
  |  收藏  |  浏览/下载:14/0  |  提交时间:2018/09/26
Late Paleozoic south-ward accretionary polarity of the eastern Junggar orogenic belt: insight from the Dajiashan and other A-type granites 期刊论文  OAI收割
ACTA PETROLOGICA SINICA, 2008, 卷号: 24, 期号: 4, 页码: 733-742
作者:  
Mao QiGui;  Xiao WenJiao;  Han ChunMing;  Yuan Chao;  Sun Min
  |  收藏  |  浏览/下载:19/0  |  提交时间:2018/09/26
Adaptive Image Segmentation based on Fast Thresholding and Image Merging (EI CONFERENCE) 会议论文  OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
作者:  
Zhang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Image segmentation is the first essential and important step of low level vision. This paper proposes a novel algorithm for adaptive image segmentation  it can be applied in many conditions  based on thresholding technique and segments merging according to their characteristics combine with spatial position. Our earlier work of getting the entire information of the histogram could help choose the multiple thresholds. However  including complex target segmented. We describe the algorithm in detail and perform simulation experiments. The computation based on pixels can fully parallel processing to save time. 2006 IEEE.  not all the peaks of the histogram correspond to obvious structural unit in the image. Spatial information must be involved. This paper also suggests subjoining segments matching for video image tracking. They will give great help to image segmentation. The proposed algorithm can meet the real-time requirement and lead to higher segmentation accuracy  some types of texture can also be segmented well  
Spring phenophases in recent decades over eastern China and its possible link to climate changes SCI/SSCI论文  OAI收割
2006
Zheng J. Y.; Ge Q. S.; Hao Z. X.; Wang W. C.
收藏  |  浏览/下载:30/0  |  提交时间:2012/06/08
INS's error compensation on the base of the celestial theodolite (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Guo L.-H.;  Zhao H.-B.
收藏  |  浏览/下载:79/0  |  提交时间:2013/03/25
In recent years there has been a major upsurge of interest in the integrated inertial navigation system (INS)/celestial navigation system (CNS) as a cost-effective way of providing accurate and reliable navigation aid for civil and military vehicles (ships  aircrafts  land vehicles and so on). One of the disadvantages of INS is its errors will grow unbounded. The CNS can be used to improve position estimation resulting from INS measurement. This paper describes the design of this. An error model developed earlier is used for CNS/INS filter (Kalman filter) mechanization. In CNS  celestial theodolite acquires an image of the sky  recognize the most brilliant stars in the image  creates with them a "constellation"  and searches for this pattern in an on board star catalogue of the observed region to get the precise position and attitude information of vehicles. The Kalman filter method is used to fuse measurement from the system. We can use this information to compensate INS's error. The tests carry out with this system show that system will get accurate navigation information.  
design and evaluation of priority table based real-time scheduling algorithms 会议论文  OAI收割
IEEE International Conference on Robotics, Intelligent Systems and Signal Processing, Changsha, PEOPLES R CHINA, OCT 08-13,
Qiang W; Wang HA; Hong J; Dai GZ
  |  收藏  |  浏览/下载:26/0  |  提交时间:2011/07/29
TWO-NUCLEON ABSORPTION MECHANISM OF PION IN FLIGHT 期刊论文  OAI收割
A Monthly Journal of Science, 1982, 期号: 6, 页码: 939-943
作者:  
Jiang HQ(姜焕清);  Li YG(李扬国)
收藏  |  浏览/下载:20/0  |  提交时间:2015/12/10