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CAS IR Grid
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长春光学精密机械与... [10]
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地质与地球物理研究所 [2]
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期刊论文 [15]
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Wavelet-based selection-and-recalibration network for Parkinson's disease screening in OCT images
期刊论文
OAI收割
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE, 2024, 卷号: 256, 页码: 13
作者:
Huang, Jingqi
;
Zhang, Xiaoqing
;
Jin, Richu
;
Xu, Tao
;
Jin, Zi
  |  
收藏
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浏览/下载:18/0
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提交时间:2024/12/06
Deep learning
Parkinson's disease screening
Discrete wavelet transform
Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously
期刊论文
OAI收割
The Astrophysical Journal, 2021, 卷号: 921, 页码: 179
作者:
HXMT
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收藏
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浏览/下载:28/0
  |  
提交时间:2022/02/08
Solar flares
Solar oscillations
Solar ultraviolet emission
Solar
x-ray emission
Solar radio emission
1496
1515
1533
1536
1522
Astrophysics - Solar and Stellar Astrophysics
Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.
Biot number effect and non-Fourier effect on temperature field and stress intensity factor of a cracked strip under thermal shock loading
期刊论文
OAI收割
ENGINEERING FRACTURE MECHANICS, 2020, 卷号: 228, 页码: 17
作者:
Li W
;
Li J
;
Song F(宋凡)
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收藏
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浏览/下载:54/0
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提交时间:2020/04/07
Biot's number
Non-Fourier effect
Crack
Fourier transform
Singular integral equations
基于广义S变换的不同类型泥石流声波试验研究
期刊论文
OAI收割
岩土工程学报, 2020, 卷号: 42, 期号: 10, 页码: 1962-1968
作者:
胡至华
;
胡雨豪
;
马东涛
;
袁路
;
李梅
  |  
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2021/01/13
debris flow type
acoustic wave
generalized S transform
wavelet packet transformation
frequency band energy
泥石流类型
声波信号
广义S变换
小波包变换
频带能量
A Hybrid Time Frequency Response and Fuzzy Decision Tree for Non-stationary Signal Analysis and Pattern Recognition
期刊论文
OAI收割
International Journal of Automation and Computing, 2019, 卷号: 16, 期号: 3, 页码: 398-412
作者:
N. R. Nayak
;
P. K. Dash
;
R. Bisoi
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2021/02/22
Non-stationary signals
sparse S-transform (SST)
scaling method
fuzzy decision tree
pattern classification.
Automatic segmentation of solar granulations based on Morphology technique
会议论文
OAI收割
2014 11th World Congress on Intelligent Control and Automation, WCICA 2014, Shenyang, China, 2014-06-29
作者:
Deng LH(邓林华)
收藏
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浏览/下载:30/0
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提交时间:2016/04/06
watershed transform
granules
morphological reconstruction
image processing
Otsu's method
A detection method for bearing faults using null space pursuit and S transform
期刊论文
OAI收割
SIGNAL PROCESSING, 2014, 卷号: 96, 页码: 80-89
作者:
Zhu, De
;
Gao, Qingwei
;
Sun, Dong
;
Lu, Yixiang
;
Peng, Silong
收藏
  |  
浏览/下载:44/0
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提交时间:2015/08/12
Null space pursuit
S transform
Bearing faults
Time-Frequency analysis
A Method to Estimate the Dynamic Displacement and Stress of a Multi-layered Pavement with Bituminous or Concrete Materials
期刊论文
OAI收割
MATERIALS SCIENCE-MEDZIAGOTYRA, 2014, 卷号: 20, 期号: 4, 页码: 529-533
作者:
Yao, Hailin
;
Lu, Zheng
;
Zhang, Jingbo
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收藏
  |  
浏览/下载:23/0
  |  
提交时间:2018/06/05
inverse Fourier transform
bituminous materials
concrete materials
Young's modulus
Automatic segmentation of granules of the solar photosphere using morphological reconstruction and watershed transform
会议论文
OAI收割
6th International Conference on Intelligent Networks and Intelligent Systems (ICINIS), Shenyang Inst Engn, Shenyang, PEOPLES R CHINA, 2013-11-01
作者:
Feng, Song
;
Xu Z(徐稚)
;
Deng LH(邓林华)
;
Yang, Yunfei
;
Ji, Kaifan
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2016/04/06
granules
morphological reconstruction
image processing
Otsu's method
watershed transform
Dynamic stress and deformation of a layered road structure under vehicle traffic loads: Experimental measurements and numerical calculations
期刊论文
OAI收割
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2012, 卷号: 39, 页码: 100-112
作者:
Wu Wan-ping
;
Lu Zheng
;
Yao Hai-lin
;
Cheng Ping
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2018/06/05
Layered road structure
Vehicle traffic loads
Experimental measurements
Transmission and reflection matrices (TRM) method
Hankel's transform