| No. |
Domestic or abroad |
Classification |
Country name |
Name of original affiliation |
Main activities |
Source of expense |
Period |
| 1 |
Overseas
|
Visiting researcher
|
Vietnam
|
Hanoi University of Science and Technology
|
|
|
2019-2019
|
| 2 |
Domestic
|
Visiting researcher
|
|
|
|
|
2018-Present
|
| 3 |
Overseas
|
Visiting researcher
|
Vietnam
|
Le Quy Don Technical University
|
|
|
2018-2018
|
| 4 |
Overseas
|
Visiting researcher
|
China
|
Harbin University of Science and Technology
|
|
|
2018-2018
|
| 5 |
Domestic
|
Visiting researcher
|
|
|
|
|
2017-Present
|
| 6 |
Overseas
|
Visiting researcher
|
Switzerland
|
University of Zurich and ETH Zurich
|
|
|
2017-2017
|