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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [4]
中国科学院大学 [2]
高能物理研究所 [1]
武汉岩土力学研究所 [1]
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OAI收割 [7]
iSwitch采集 [2]
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期刊论文 [6]
会议论文 [3]
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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
Coalmine
Gas extraction
Gas flow
Permeability
Effective extraction radius
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
Relative Dispersion
Effective Radius
Autoconversion Process
Global Climate Models
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
position measurement method
quadrant detector
Laguerre-Gaussian beams
least square method
effective radius
detection
free-space
propagation
improvement
angle
Chemistry
Electrochemistry
Instruments & Instrumentation
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
The radial spiral feed of the tool and the tool nose radius compensation are taken into consideration for the tool position trajectory (TPT) generation in diamond turning of freeform optical surfaces. Using the coarse sampling and the fine interpolation
a novel approach based on singular spectrum analysis (SSA) is presented to decompose the generated TPT into a slowly varying trend and a quickly varying quasi-periodic oscillation. The numerical experiments of the TPT decomposition of toroidal surfaces have been carried out. The results verify that the proposed approach is very effective for the TPT decomposition. (2010) Trans Tech Publications.
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
Gamil
Energy budget
Cloud droplet effective radius
Cloud liquid water path
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
Total ozone amount
Backscattered ultraviolet radiance
Effective reflectivity of cloud top
Cloud effective radius
Cloud optical thickness
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.