Spatiotemporal Evolution Patterns of the COVID-19 Pandemic Using Space-Time Aggregation and Spatial Statistics: A Global Perspective

by Zechun Huang
Published 2021-07-01

Dissimilar material welding of tantalum foil and Q235 steel plate using improved explosive welding technique

by Ming Yang, Honghao Ma, Zhaowu Shen, Zechun Huang, Qichao Tian, Jie Tian
Published 2020-01-01