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Bioaccessibility of metals/metalloids in willow catkins collected in urban parks of Beijing and their health risks to human beings
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 卷号: 717, 页码: 9
作者:
Wan, Xiaoming
;
Gu, Gaoquan
;
Lei, Mei
;
Zeng, Weibin
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2020/05/19
Lung bioaccessibility
Catkin
Dust
Fine particle
Metal/metalloid
A creo-based modeling and toolpath generating system for the nc whirling process of propeller blades
期刊论文
Advances in Intelligent Systems and Computing, 2019, 卷号: 809, 页码: 1350-1357
作者:
Liu, Xinfeng
;
Liu, Riliang
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  |  
浏览/下载:6/0
  |  
提交时间:2019/12/11
CAD/CAM
CNC machining
Free-form surface
Propeller
Whirling process
Ferroelectrically tunable magnetic skyrmions in ultrathin oxide heterostructures
期刊论文
NATURE MATERIALS, 2018, 卷号: 17, 期号: 12, 页码: 1087-+
作者:
Wang, Lingfei
;
Feng, Qiyuan
;
Kim, Yoonkoo
;
Kim, Rokyeon
;
Lee, Ki Hoon
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  |  
浏览/下载:8/0
  |  
提交时间:2019/12/25
Dynamic behaviors of three-dimensional rod-disk rotor rolling bearing system
期刊论文
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART K-JOURNAL OF MULTI-BODY DYNAMICS, 2018, 卷号: 232, 页码: 21-31
作者:
Liu, Yi
;
Liu, Heng
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  |  
浏览/下载:4/0
  |  
提交时间:2019/11/19
stability
frequency
Rod-disk rotor
rolling bearing
whirling motion
Casing Wear Prediction Model Based on Drill String Whirling Motion in Extended-Reach Drilling
期刊论文
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 2018, 卷号: 43, 页码: 6325-6332
-
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浏览/下载:6/0
  |  
提交时间:2020/01/03
Casing wear
Whirling motion
Drill string
Prediction model
Composite wear
Research on Simulation System of Rotor-Dynamics of Ball-Bearing and Turbo-Pump Rotor
会议论文
IOP Conference Series: Materials Science and Engineering
作者:
Zhang, X.
;
Tian, A.
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  |  
浏览/下载:3/0
  |  
提交时间:2019/12/30
Bridge decks
Composite materials
Dynamics
Electric connectors
Manufacture
Stiffness
Turbine pumps
Calculation models
Calculation programs
Radial bearings
Seal-rotor system
Sealing fluids
Series parallel connection
Simulation systems
Whirling frequency
Angular contact ball bearings
A novel negative dislocated seal and influential parameter analyses of static/rotordynamic characteristics
期刊论文
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2018, 卷号: 32, 页码: 4125-4134
作者:
Sun, Dan
;
Wang, Xudong
;
Fei, Chengwei
;
Wang, Shuang
;
Ai, Yanting
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  |  
浏览/下载:5/0
  |  
提交时间:2019/12/30
Negative dislocated seal
Multi-frequency whirling model
Static characteristics
Rotordynamic characteristics
Rotor system stability
Origin of beaded tafoni in cliffs of Danxia landscapes, Longhushan Global Geopark, South China
期刊论文
JOURNAL OF MOUNTAIN SCIENCE, 2018, 卷号: 15, 期号: 11, 页码: 2398-2408
作者:
Guo, Fu-sheng
;
Chen, Liu-qin
;
Xu, Huan
;
Liu, Xin
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  |  
浏览/下载:53/0
  |  
提交时间:2020/10/26
Beaded tafoni
Alluvial red beds
Danxia landscape
Longhushan Global Geopark
一种水下机器人用推进装置
专利
专利类型: 发明, 专利号: CN106927005A, 申请日期: 2017-07-07,
作者:
俞建成
;
李春阳
;
谭智铎
;
何震
;
金文明
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  |  
浏览/下载:14/0
  |  
提交时间:2017/07/13
Fluid Excited Rotordynamic Characteristics of Labyrinth Seal During Non-Uniform Inlet Flowing
期刊论文
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2017, 卷号: 51, 页码: 145-152
作者:
Chen, Yaoxing
;
Li, Zhigang
;
Li, Jun
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  |  
浏览/下载:3/0
  |  
提交时间:2019/11/26
Dynamic mesh technique
Fluid excitation
Labyrinth Seal
Non-uniform
Rotor dynamic coefficients
Rotordynamic characteristics
Unsteady reynolds-averaged navier-stokes
Whirling frequency
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