1. EFFECTS OF PULSED ELECTRIC FIELD ON THE ESTERIFICATION REACTIONS. Authors: IOAN-ALEXANDRU UDREA, VALENTIN ORDODI, CRISTINA PAUL, CRISTIAN STĂNESE, NICOLAE VASZILCSIN.2. EFFECTS OF AUDIO FREQUENCY ELECTRIC FIELDS ON THE ESTERIFICATION REACTIONS OF ACETIC ACID WITH C4-C8 BRANCHED ALCOHOLS. Authors: IOAN-ALEXANDRU UDREA, VALENTIN ORDODI, CRISTINA PAUL, MIRCEA DAN, ANA-MARIA PANĂ, CRISTIAN STĂNESE, DUMITRU DANIEL BONCIOG, LUCA DORU-ALEXANDRU, NARCIS-GRAȚIAN CRĂCIUN, NICOLAE VASZILCSIN.