Aluminum-impregnated Philippine Natural Zeolite (Al-PNZ) as an intake filter in a diesel engine. - Morco, Lanvin Philippe P.; Luna, Arwin EJ A.; Ordoñez, Carlos Konrad T.; Avenilla, Laurence Eldon M.; Benedict, Miguel O.; Vergara, Von Gerel L.; Lopez, Edgar Clyde R. (Journal of Engineering & Applied Science, 2026)