Recently, Prof. Ren has been appointed as an Associate Editor for the journal Heliyon.

https://www.cell.com/heliyon/physics/editors

Heliyon is an all-science, open access journal that is part of the Cell Press family. Any paper reporting scientifically accurate and valuable research, which adheres to accepted ethical and scientific publishing standards, will be considered for publication. As such, the journal also publishes manuscripts reporting negative/null results, incremental advances, and replication studies.  
Every published article will be immediately available on both cell.com/heliyon and ScienceDirect and will be indexed by PubMed, Scopus, Web of Science™ and Science Citation Index Expanded™ (SCIE), ensuring that it reaches the widest possible audience. Heliyon's impact factor is 4.0 as of June 2023.   

 
Heliyon Physics is a section of Heliyon that is fully dedicated to publishing valuable research in the field of physics. The section is led by a team of Editors from a broad range of specialties within physics, enabling the section to support both traditional and multidisciplinary physics