Reverse hybrid jig separation efficiency estimation of floating plastics using apparent specific gravity and concentration criterion - Theerayut Phengsaart; Chaiwat Manositchaikul; Palot Srichonphaisarn; Onchanok Juntarasakul; Kreangkrai Maneeintr; Sanghee Jeon; Carlito Baltazar Tabelin; Naoki Hiroyoshi; Mayumi Ito (Frontiers in Chemistry, 2022)