نتایج جستجو برای: microscopy
تعداد نتایج: 192285 فیلتر نتایج به سال:
We have constructed an atomic force microscope enabling one to image the topography of a sample, and to monitor simultaneously ultrasonic surface vibrations in the MHz range. For detection of the distribution of the ultrasonic vibration amplitude, a part of the position-sensing light beam reflected from the cantilever is directed to an external knife-edge detector. Acoustic images taken on the ...
Confocal fluorescence microscopy and atomic force microscopy (AFM) are two established techniques that can be used to study single molecules. Both techniques have their individual capabilities that permit to study different aspects such as topography using AFMs, or dynamics using fluorescence spectroscopy. Thus, a combination of both techniques into a single instrument enhances the methodology ...
چکیده ندارد.
introduction: successful endodontic treatment depends on elimination of the microorganisms through chemomechanical debridement. the aim of this in vitro study was to evaluate the effectiveness of fragaria vesca (wild strawberry) extract (fve) on the removal of smear layer (sl). methods and materials: in this analytical-observational study, 40 extracted mandibular and maxillary human teeth were ...
introduction: this study compared the cleaning efficiency of mtwo, race and medin nickel-titanium (niti) rotary instruments. materials and methods: sixty mandibular molar mesial roots were selected with angle curvatures between 25-35 degrees and divided into three groups; each containing 20 teeth. canals were prepared with the rotary files and irrigated with 2.5% naocl solution after each instr...
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