**Preface to "Perspectives and Challenges in Doctoral Research—Selected Papers from the 10th Edition of the Scientific Conference of the Doctoral Schools of "Dun ˘area de Jos" University of Galati (SCDS-UDJG)"**

This Special Issue of the journal *Inventions* includes papers from different research fields reflecting the sectional talks presented at the 10th edition of the Scientific Conference of the Doctoral Schools of "Dun ˘area de Jos" University of Gala¸ti, which took place in June 2022. The objective of the 2022 Conference was to bring together perspectives and challenges in doctoral research in a common forum and to provide a platform enabling doctoral researchers to meet and share state-of-the-art developments in their fields.

The Special Issue includes 13 papers presented at the conference from several fields, including mechanical and industrial engineering, food science and biotechnology, electrical/electronic engineering, systems engineering and information technologies, chemistry, and economic models and strategies.

> **Eugen Rusu and Gabriela Rapeanu** *Editors*
