نتایج جستجو برای: ultrasonic degradation

تعداد نتایج: 178623  

Journal: :iranian endodontic journal 0
zahed mohammadi sousan shalavi luciano giardino flavio palazzi saeed asgary

using ultrasonic devices in endodontics can enhance the antibacterial and tissue dissolving ability of different root canal irrigants such as sodium hypochlorite (naocl) which is the most common irrigant with excellent antibacterial and tissue dissolving abilities. however, due to its high surface tension, its penetration into the irregularities of the root canal system is a challenge. the purp...

Journal: :Environmental science & technology 2010
Jie Cheng Chad D Vecitis Hyunwoong Park Brian T Mader Michael R Hoffmann

Ultrasonic irradiation has been shown to effectively degrade perfluorinated chemicals (PFCs) such as perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in aqueous solution. Reduced PFC sonochemical degradation rates in organic-rich groundwater taken from beneath a landfill, however, testify to the negative kinetic effects of the organic groundwater constituents. In this study, the P...

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