**Yanen Wang**

Yanen Wang is a professor at the School of Mechanical Engineering at Northwestern Polytechnic University. He obtained his Ph.D. degree in aeronautics and astronautics manufacturing engineering from Northwestern Polytechnical University. Currently, he is the vice dean of the School of Mechanical Engineering at Northwestern Polytechnical University, the director of the Shaanxi Biomanufacturing Engineering Research Center, the deputy secretary general of the Shaanxi Additive Manufacturing Committee, and also responsible for the Advanced Manufacturing Bio-Additive Manufacturing. His research interests focus on biofabrication and intelligent manufacturing technology.

### **Qinghua Wei**

Qinghua Wei is an associate professor at the School of Mechanical Engineering at Northwestern Polytechnic University. He has been a faculty member at Northwestern Polytechnical University since he obtained his Ph.D. degree in mechatronics engineering from Northwestern Polytechnical University in 2018. His research interests include biomedical materials, biofabrication, and biomedical engineering.
