نتایج جستجو برای: leakage test

تعداد نتایج: 840353  

Journal: :Microelectronics Reliability 2012
William McGenn Michael J. Uren Johannes Benedikt Paul J. Tasker

This paper reports on the development of an RF IV waveform based stress test procedure. DC and low-voltage RF characterisation was carried out before and after high power RF stress. RF waveform measurements showed that the exact change in the RF load line induced during RF degradation cannot be directly inferred from the DC or low power RF measurement. The RF degradation takes the form of a kne...

Journal: :iranian endodontic journal 0
majid kazem department of endodontics, dental research center, shahid beheshti university of medical sciences, tehran, iran. mohammad jafar eghbal department of endodontics, iranian center for endodontic research, dental research center/dental school, shahid beheshti university of medical sciences, tehran, iran. saeed asgary department of endodontics, iranian center for endodontic research, dental research center/dental school, shahid beheshti university of medical sciences, tehran, iran.

introduction: the provision of an effective apical seal is an essential factor when choosing an appropriate material for success of root-end surgeries. root-end resection, preparation and obturation should provide an adequate apical seal. the aim of this in vitro study was to investigate bacterial and dye microleakage of four different root-end filling materials and compare the efficacy of thes...

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