Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Yongbiao Duan"'
Publikováno v:
Urban Governance, Vol 3, Iss 3, Pp 169-185 (2023)
As the world becomes increasingly urbanized, urban governance has attracted more academic attention. There have been some review articles on the state of urban governance research, as they are in the form of selected themes by the authors, it is diff
Externí odkaz:
https://doaj.org/article/18accefde2a24896aeb966ed33509340
Publikováno v:
Materials, Vol 13, Iss 19, p 4240 (2020)
In this paper, in order to improve the performance of the ZL205A castings, continuous ultrasonic and pulsed ultrasonic treatments were applied to the melted alloy to study the effect of ultrasound propagation distance on microstructure and microhardn
Externí odkaz:
https://doaj.org/article/04f2aa82e8c44fc4b55514bee80d7de7
Publikováno v:
Materials
Volume 13
Issue 19
Materials, Vol 13, Iss 4240, p 4240 (2020)
Volume 13
Issue 19
Materials, Vol 13, Iss 4240, p 4240 (2020)
In this paper, in order to improve the performance of the ZL205A castings, continuous ultrasonic and pulsed ultrasonic treatments were applied to the melted alloy to study the effect of ultrasound propagation distance on microstructure and microhardn