RETRACTED: Elucidating of rotation speed in friction stir welding of pure copper: Thermal modeling

The authors have plagiarized part of a paper that had already appeared in Masoud Jabbari and Cem C. Tutum, “Optimum Rotation Speed for the Friction Stir Welding of Pure Copper,” ISRN Materials Science, vol. 2013, 5 pages, 2013. http://dx.doi.org/10.1155/2013/978031. One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.