TY - CPAPER AU - Dan NiĊ£oi TI - PRACTICAL REALISATION AND FINITE ELEMENT MODELING OF ULTRASONIC FILTERS DESIGN FOR AIR FILTRATION T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies PY - 2018 SP - 555 EP - 562 DO - 10.5593/sgem2018/4.2/s19.072 PB - STEF92 Technology ER -