Optimization of biogas composition in experimental studies

by Dimitrov Radostin, Ivanov Zdravko, Zlateva Penka, Mihaylov Veselin
Published 2019-01-01

THE ACTION OF PERIODIC VARIABLE FORCES IN TIME ON AN ELASTIC MEDIUM

by Nicoleta Maria MIHUT, Minodora Maria PASARE, Adina Milena TATAR, Dimitrov RADOSTIN
Published 2020-05-01