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COVID-19 Vaccine Tweets After Vaccine Rollout: Sentiment-Based Topic Modeling
期刊论文
JOURNAL OF MEDICAL INTERNET RESEARCH, 2022, 卷号: 24, 期号: 2, 页码: 14
作者:
Huangfu, Luwen
;
Mo, Yiwen
;
Zhang, Peijie
;
Zeng, Daniel Dajun
;
He, Saike
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2022/06/06
COVID-19
COVID-19 vaccine
sentiment evolution
topic modeling
social media
text mining
Holocene Climate Modulates Mud Supply, Transport, and Sedimentation on the East China Sea Shelf
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2020, 卷号: 125, 期号: 10, 页码: 18
作者:
Dong, Jiang
;
Li, Anchun
;
Liu, Xiting
;
Wan, Shiming
;
Xu, Fangjian
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2021/04/12
The sponge effect and carbon emission mitigation potentials of the global cement cycle
期刊论文
NATURE COMMUNICATIONS, 2020, 卷号: 11, 期号: 1, 页码: 9
作者:
Cao, Zhi
;
Myers, Rupert J.
;
Lupton, Richard C.
;
Duan, Huabo
;
Sacchi, Romain
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  |  
浏览/下载:15/0
  |  
提交时间:2021/03/18
A Novel Strategy for DC Distribution Start-up Based on MMC
会议论文
Beijing, China, November 21, 2019 - November 23, 2019
作者:
Huo, Xianxu
;
Xie, Xingfeng
;
Wu, Zaijun
;
Dou, Xiaobo
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  |  
浏览/下载:4/0
  |  
提交时间:2020/11/15
Auxiliary equipment
Electric circuit breakers
Electric power supplies to apparatus
Electric power system control
Electric power transmission networks
Power converters
Auxiliary power supply
Current-limiting resistors
DC distribution network
DC power distribution systems
Modular multi-level converters
Start-up strategy
Submodules
Uncontrolled charging
Sensorless Speed Estimation of an Inverter-fed Induction Motor Using the Supply Side Current
期刊论文
IEEE Transactions on Energy Conversion, 2019, 卷号: 34, 期号: 3, 页码: 1432-1441
作者:
Hu JT(胡静涛)
;
Li SH(李署辉)
;
Wang Z(王卓)
;
Song XJ(宋向金)
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  |  
浏览/下载:49/0
  |  
提交时间:2019/01/13
Speed estimation
supply side current
induction motor
Hilbert transform
Goertzel algorithm
Sensorless Speed Estimation of an Inverter-fed Induction Motor Using the Supply Side Current
期刊论文
IEEE Transactions on Energy Conversion, 2019, 卷号: 34, 期号: 3, 页码: 1432-1441
作者:
Song XJ(宋向金)
;
Wang Z(王卓)
;
Li SH(李署辉)
;
Hu JT(胡静涛)
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2019/01/13
Speed estimation
supply side current
induction motor
Hilbert transform
Goertzel algorithm
Coordinated control for fault ride-through in VSC-MTDC system with quickly supply of reactive power to passive load
期刊论文
Dianli Zidonghua Shebei/Electric Power Automation Equipment, 2018, 卷号: 38, 期号: 11, 页码: 28-34
作者:
Wang, Xiaolan
;
Zhao, Qiaoling
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  |  
浏览/下载:11/0
  |  
提交时间:2020/11/14
Voltage control
Co-ordinated control
Coordinated control strategy
Fault ride-through
Multi-terminal direct currents
Reactive power support
Voltage drop
Voltage source converters
VSC-MTDC
Tide-induced bedload transport pathways in a multiple-sand-ridge system offshore of Hainan Island in the Beibu Gulf, northwest South China Sea
期刊论文
EARTH SURFACE PROCESSES AND LANDFORMS, 2018, 卷号: 43, 期号: 13, 页码: 2738-2753
作者:
Ma, Xiaochuan
;
Li, Jinyuan
;
Yan, Jun
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2019/08/27
bedload transport
sand ridge
dune
Delft 3D model
Beibu Gulf
Tide-induced bedload transport pathways in a multiple-sand-ridge system offshore of Hainan Island in the Beibu Gulf, northwest South China Sea
期刊论文
EARTH SURFACE PROCESSES AND LANDFORMS, 2018, 卷号: 43, 期号: 13, 页码: 2738-2753
作者:
Ma, Xiaochuan
;
Li, Jinyuan
;
Yan, Jun
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2018/12/21
bedload transport
sand ridge
dune
Delft 3D model
Beibu Gulf
Efficient electrochemical recovery of fine tellurium powder from hydrochloric acid media via mass transfer enhancement
期刊论文
SEPARATION AND PURIFICATION TECHNOLOGY, 2018, 卷号: 203, 页码: 117-123
作者:
Jin, Wei
;
Su, Junling
;
Chen, Shifu
;
Li, Ping
;
Moats, Michael S.
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  |  
浏览/下载:37/0
  |  
提交时间:2018/09/04
Tellurium
Electrodeposition
Mass Transfer
Scattered Metals
Recovery
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