**About the Editor**

**Raffaele Di Gregorio** is currently a Full Professor of machine mechanics at the Engineering Department of the University of Ferrara, Italy. He received an M.Sc. degree in nuclear engineering, an M.Sc. degree in mechanical engineering and an M.Sc. degree in automotive engineering from the Polytechnic University of Turin in 1982, 1985 and 1988, respectively, and a Ph.D. degree in applied mechanics from the University of Bologna, Italy, in 1992.

In 1983, he received a grant from the Italian Automotive Technical Association (ATA) for one year as a research fellow at the FIAT Research Center, Orbassano (Italy).

Between 1984 and 1992, he served as officer of the Technical Corp in the Italian Army: first, at the Military School of Turin and, successively, at the STAVECO (Military Vehicle Factory) of Bologna. In 1993, he taught at ITIS O. Belluzzi of Bologna, Italy. Since 1994, he has been part of the Engineering Department of the University of Ferrara, Italy.

His research interests include kinematics and dynamics of mechanisms and machines, biomechanics, robotics, vibration mechanics and vehicle mechanics.

He has been an author and co-author of about 80 technical papers published in refereed international journals and many papers published in conference proceedings.

He has been an "observer/member" of the IFToMM Technical Committee "Computational Kinematics" since 2007 and "member" of the IFToMM Permanent Commission "Standardization of Terminology" since 2009. Moreover, he is an ASME member and served as a "general member" of the ASME Mechanisms and Robotics Committee between 2007 and 2012; since 2013, he has continued to serve this committee as a past member. In these roles, he has actively participated in the organization of International Conferences on Mechanisms and/or Robotics and served as the chair of the "ASME—Mechanisms & Robotics' Honors and Awards Sub-Committee" from 2014 to 2016.

In addition to being an editorial board member of many international journals, he serves as associate editor of "ACTAPRESS International Journal of Robotics and Automation" and "Mechanism and Machine Theory" and served as associate editor of the "ASME Journal of Mechanisms and Robotics" from July 2014 to October 2020. Furthermore, he has been a "Guest Editor" of the Special Issue series "Kinematics and Robot Design" published by the journal Robotics since 2018 and served as the "Editor in Chief" of the "Journal of Mechanical Engineering and Automation" since 2012.

An updated list of his publication together with more details can be found on the following websites:

UNIFE: http://docente.unife.it/raffaele.digregorio-en ResearchGate: http://www.researchgate.net/profile/Raffaele Di Gregorio Scopus Author ID: 7003465861 ORCID: https://orcid.org/0000-0003-3925-3016 ResearchID: http://www.researcherid.com/rid/F-9316-2014 Google Scholar: http://scholar.google.it/citations?user=n Ml9FEAAAAJ&hl=it A list of his professional links can be found at http://www.linkedin.com/profile/view?id=128075898&trk=tab pro
