OMICS is one of those fake-journal publication companies. Anyone can publish anything by paying their fee. The paper's own footnote shows this: Submitted October 8, 2018; Accepted October 12, 2018; Published October 19, 2018. No serious journal has a process that quick.

There was a talk at Defcon last year about this. Two journalists from Germany submitted a jibberish paper to one of these companies, got it published, and then they went on a "speaking tour," also organized by these fake journal companies.

http://www.eevblog.com/forum/chat/journalists-find-fake-scie...