Identifying speeds and accelerations for the systems within a didactic stand operated by means of stepper motorsEmilia-Maria Popescu, Constantin-Adrian Popescu, Cicerone Laurentiu Popa, Gabriel-Tiberiu Dobrescu and Costel Emil CotetMATEC Web Conf., 343 (2021) 02006DOI: https://doi.org/10.1051/matecconf/202134302006