Hello, I want to know some information about these international journals:
International Journal of Fluid Machinery and Systems and the International Journal of Rotating Machinery:
1-The grade of them (9-10) or lower.
2- The time that they consume to revise a paper and reply to the researchers.
3- Are them free or paid papers?
Thanks
http://www.ijfms.org/
https://www.hindawi.com/journals/ijrm/