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Fault feature extraction of rotating machinery based on EWT and a weighted multi neighborhood rough set
期刊论文
Zhendong yu Chongji/Journal of Vibration and Shock, 2019, 卷号: 38, 期号: 24, 页码: 235-242
作者:
Wu, Yaochun
;
Zhao, Rongzhen
;
Jin, Wuyin
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2020/11/14
Classification (of information)
Extraction
Iterative methods
Probability
Rotating machinery
Rough set theory
Time domain analysis
Wavelet transforms
Characteristics of vibrations
Empirical wavelet transform(EWT)
Fault feature extractions
Feature selection methods
Multiple neighborhoods
Neighborhood rough sets
Probability of occurrence
Time domain characteristics
Active Galactic Nuclei with Ultrafast Outflows Monitoring Project: The Broad-line Region of Mrk 79 as a Disk Wind
期刊论文
ASTROPHYSICAL JOURNAL, 2019, 卷号: 887, 期号: 2, 页码: 20
作者:
Lu KX(卢开兴)
;
Bai JM(白金明)
;
Zhang, Zhi-Xiang
;
Du, Pu
;
Hu, Chen
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  |  
浏览/下载:46/0
  |  
提交时间:2020/03/02
The Sloan Digital Sky Survey Reverberation Mapping Project: Initial C iv?Lag Results from Four Years of Data
期刊论文
The Astrophysical Journal, 2019, 卷号: 887, 期号: 1
作者:
Grier,C. J.
;
Shen,Yue
;
Horne,Keith
;
Brandt,W. N.
;
Trump,J. R.
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  |  
浏览/下载:25/0
  |  
提交时间:2020/03/10
Reverberation mapping
Quasars
Active galactic nuclei
Supermassive black holes
Significance of the secondary pores in perthite for oil storage and flow in tight sandstone reservoir
期刊论文
MARINE AND PETROLEUM GEOLOGY, 2019, 卷号: 110, 页码: 178-188
作者:
Du SH(杜书恒)
;
Zhao YP(赵亚溥)
;
Jin J
;
Kou G
;
Shi YM
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  |  
浏览/下载:86/0
  |  
提交时间:2019/12/17
Perthite
Tight sandstone
K-feldspar
Na-feldspar
Unconventional oil reservoir
Higher-order geometric flow of hypersurfaces in a Riemannian manifold
期刊论文
INTERNATIONAL JOURNAL OF MATHEMATICS, 2019, 卷号: 30, 期号: 13, 页码: 47
作者:
Jia, Zonglin
;
Wang, Youde
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  |  
浏览/下载:15/0
  |  
提交时间:2020/05/24
Universal interpolation inequality
gradient flow
Sobolev inequality on submanifold
Flocking with General Local Interaction and Large Population
期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2019, 卷号: 32, 期号: 6, 页码: 1498-1525
作者:
Chen, Ge
;
Liu, Zhixin
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浏览/下载:10/0
  |  
提交时间:2020/05/24
Consensus
Cucker-Smale model
flocking model
multi-agent systems
random geometric graph
SDSS-IV MaNGA: the inner density slopes of nearby galaxies
期刊论文
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 卷号: 490, 期号: 2, 页码: 2124-2138
作者:
Li, Ran
;
Li, Hongyu
;
Shao, Shi
;
Lu, Shengdong
;
Zhu, Kai
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  |  
浏览/下载:39/0
  |  
提交时间:2020/03/10
galaxies: evolution
galaxies: formation
galaxies: kinematics and dynamics
galaxies: structure
Does geographic distance have a significant impact on enterprise financing costs?
期刊论文
JOURNAL OF GEOGRAPHICAL SCIENCES, 2019, 卷号: 29, 期号: 12, 页码: 1965-1980
作者:
Sun, Wei
;
Li, Qihang
;
Li, Bo
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  |  
浏览/下载:4/0
  |  
提交时间:2020/05/19
financial geography
enterprise financing
geographic distance
Beijing-Tianjin-Hebei
Numerical simulation of the improved gas production from low permeability hydrate reservoirs by using an enlarged highly permeable well wall
期刊论文
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 卷号: 183, 页码: 13
作者:
Zhang, Jinming
;
Li, Xiaosen
;
Chen, Zhaoyang
;
Li, Qingping
;
Li, Gang
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2020/10/29
Methane hydrates
Depressurization
Low permeability
Enlarged permeable well wall
Liwan 3 area
Formation of Massive Protostellar Clusters-Observations of Massive 70 mu m Dark Molecular Clouds
期刊论文
ASTROPHYSICAL JOURNAL, 2019, 卷号: 886, 期号: 2, 页码: 16
作者:
Li, Shanghuo
;
Zhang, Qizhou
;
Pillai, Thushara
;
Stephens, Ian W.
;
Wang, Junzhi
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  |  
浏览/下载:0/0
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提交时间:2021/09/26
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