Issue N° 4 / 2022 ForewordAim and ScopeEditorial BoardsSeries Active Power Filter Performances based on Three and Five-level Neutral Point Clamped Inverter Topologies using Fuzzy Control Scheme …………………..................................................................................................……........…Salim CHENNAI1Pulsed Electric Field (PEF) Treatment Chamber Optimization for Improving Treatment Efficiency on Food Processing Yacine BELLEBNA, Abdelkader SEMMAK, Said NEMMICH, Adel BENABOUN, Kamel NASSOUR, Mohammed REZOUG, Amar TILMATINE9Peak Management at the distribution grid using High Voltage Battery Energy Storage System …………......................…Nasreddine ATTOU, Sid-Ahmed ZIDI, Samir HADJERI, Mohammed KHATIR16Development and improvement of an efficient ozone air and surface disinfection system in hospitals ……….....………Latifa SMAIL, Fodil BOUKHOULDA, Nour El Houda ZENAGUI,Said NEMMICH, Kamel NASSOUR, Amar TILMATINE22Assessment of new forces acting on metal particles by electric curtains conveyor ...........................................................Ahmed ALIBIDA, Abbes OUARI, Farid MILOUA, Abdelber BENDAOUD, Amar TILMATINE28Common and Differential Mode Filter Used in SEPIC Converter…………………..................................…………Abdelhakim ZEGHOUDI, Abdelber BENDAOUD, Seyfeddine BECHEKIR, Houcine MILOUDI, Amar TILMATINE, Farid MILOUA 34