中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Study on gas extraction efficiency using in-seam borehole method considering influence of plastic zone induced by borehole drilling 期刊论文  OAI收割
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT, 2023, 卷号: 33
作者:  
Kang, Yongshui;  Geng, Zhi;  Liu, Bin
  |  收藏  |  浏览/下载:17/0  |  提交时间:2023/08/02
Introducing a special collection of papers in the Journal of High Energy Astrophysics on the Early Results of China's 1st X-ray Astronomy Satellite: Insight-HXMT 期刊论文  OAI收割
Journal of High Energy Astrophysics, 2020, 卷号: 27, 页码: 51-52
作者:  
HXMT
  |  收藏  |  浏览/下载:51/0  |  提交时间:2022/02/08
Astrophysics - High Energy Astrophysical Phenomena  Abstract: Insight-HXMT is the first Chinese X-ray astronomical mission, launched successfully on June 15, 2017, from China's Jiuquan Satellite Launch Center. Insight-HXMT was designed to have a broad energy coverage in X-rays, from 1-250 keV, with excellent timing and adequate energy resolution at soft X-rays, and the largest effective area at hard X-rays. This allows, in particular, to observe bright sources like X-ray binaries (XRBs) in their bright/outburst states with high cadence and high statistics at hard and soft X-rays at once. It was then expected that the Insight-HXMT mission will bring us new insights regarding the characteristics of several source classes. Examples include characterizing High-Mass X-ray Binaries (HMXBs) and the outburst evolution of Low-Mass X-ray Binaries (LMXBs). For instance, in HMXB systems, the region around their Alfven radius that is responsible to determine whether accretion or propeller occurs, or the region around the NS magnetic pole where the intense X-rays are supposed to be produced are specially appealing targets of study. For the LMXBs, the evolution the outburst and the properties of the compact objects themselves are obvious priority targets for Insight-HXMT. Due to the broad coverage in energy, Insight-HXMT is specially well suited to study the influence of thermonuclear (type-I) X-ray bursts upon the surrounding environment.  
Role of microphysical parameterizations with droplet relative dispersion in IAP AGCM 4.1 期刊论文  OAI收割
ADVANCES IN ATMOSPHERIC SCIENCES, 2018, 卷号: 35, 期号: 2, 页码: 248-259
作者:  
Xie, Xiaoning;  Liu, Yangang;  Peng, Yiran;  Liu, Xiaodong;  Zhang, He
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/09/25
High Precision Position Measurement Method for Laguerre-Gaussian Beams Using a Quadrant Detector 期刊论文  OAI收割
Sensors, 2018, 卷号: 18, 期号: 11, 页码: 11
作者:  
Li, Q.;  Wu, J. B.;  Chen, Y. S.;  Wang, J. Y.;  Gao, S. J.
  |  收藏  |  浏览/下载:18/0  |  提交时间:2019/09/17
The research of rigid lapping technique on diamond grating ruling tool (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Materials Science and Engineering Science, ICMSES 2010, December 11, 2010 - December 12, 2010, Shenzhen, China
Jirigalantu A.; Bayanheshig; Dong Q. X.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
One of the effective method of improving diamond tool life on rulling large diffraction gratings is developing precise double-cone edged on line edge transfering tool. But traditional died weight or manual lapping technique couldn't meet the precision requirement of on line edge transfering tool. So preliminary studied rigid lapping of diamond grating ruling tool. Choosing traditional BC6063 shaping machine and made a series of alteration on it  achieved the automation of lapping process of diamond grating ruling tool. Through lapping grating ruling tool and AFM measurement find that the surface roughness of tool is 1.51nm  the radius of tool edge is 160nm  edge quality is good enough  this verified the feasibility of rigid lapping of diamond grating ruling tool and lay the foundation for developing precision lapping machine. (2011) Trans Tech Publications  Switzerland.  
SSA based decomposition of tool position trajectory for diamond turning of freeform optical surfaces (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Manufacturing Science and Engineering, ICMSE 2009, December 26, 2009 - December 28, 2009, Zhuhai, China
作者:  
Liu Q.;  Lin C.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Sensitivity of the grid-point atmospheric model of iap lasg (gamil1.1.0) climate simulations to cloud droplet effective radius and liquid water path 期刊论文  iSwitch采集
Advances in atmospheric sciences, 2008, 卷号: 25, 期号: 4, 页码: 529-540
作者:  
Li Lijuan;  Yuqing Wang;  Wang Bin;  Zhou Tianjun
收藏  |  浏览/下载:34/0  |  提交时间:2019/05/10
A theoretical study on the effect of ozone below cloud on total ozone retrieved by toms and a new inversion algorithm 期刊论文  iSwitch采集
Chinese journal of geophysics-chinese edition, 2007, 卷号: 50, 期号: 2, 页码: 364-369
作者:  
Jiang Fang;  Wang Ying-Jian;  Liu Zhen-Xing;  Wang Yong-Mei;  Zhang Xiao-Qing
收藏  |  浏览/下载:18/0  |  提交时间:2019/05/10
Target track system design based on circular projection (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Song H.-J.; Zhu M.; Hu S.; Shen M.-L.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Template matching is the process of searching the present and the location of a reference image or an object in a scene image. Template matching is a classical problem in a scene analysis: given a reference image of an object  decide whether that object exists in a scene image under analysis  and find its location if it does. The template matching process involves cross-correlating the template with the scene image and computing a measure of similarity between them to determine the displacement. The conventional matching method used the spatial cross-correlation process which is computationally expensive. Some algorithms are proposed for this speed problem  such as pyramid algorithm  but it still can't reach the real-time for bigger model image. Moreover  the cross-correlation algorithm can't be effective when the object in the image is rotated. Therefore  the conventional algorithms can't be used for practical purpose. In this paper  an algorithm for a rotation invariant template matching method based on different value circular projection target tracking algorithm is proposed. This algorithm projects the model image as circular and gets the radius and the sum of the same radius pixel value. The sum of the same radius pixel value is invariable for the same image and the any rotated angle image. Therefore  this algorithm has the rotation invariant property. In order to improve the matching speed and get the illumination invariance  the different value method is combined with circular projection algorithm. This method computes the different value between model image radius pixel sum and the scene image radius pixel sum so that it gets the matching result. The pyramid algorithm also is been applied in order to improve the matching speed. The high speed hardware system also is been design in order to meet the real time requirement of target tracking system. The results show that this system has the good rotate invariance and real-time property.