نتایج جستجو برای: ultrasonic vibration

تعداد نتایج: 77267  

Journal: :Journal of the Japan Society for Precision Engineering 1986

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Journal: :Journal of the Japan Society for Precision Engineering 2013

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Journal: :Journal of the Japan Society for Precision Engineering 2014

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Journal: :Journal of the Japan Society of Precision Engineering 1966

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2012
Ramón Rodríguez-Martos Daniel Torres-Lagares Lizett Castellanos-Cosano María A. Serrera-Figallo Juan J. Segura-Egea Jose L. Gutierrez-Perez

OBJECTIVE The objective of our study is to analyse (with the help of scanning electron microscopes) the quality of the dental root surface and the appearance of dental cracks after performing apical preparations using two different types of ultrasonic tips. STUDY DESIGN We used 32 single-rooted teeth that underwent a root canal and apical resection. Afterwards, the teeth were divided into 4 g...

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2004
C. DOUMANIDIS Y. GAO

APRIL 2004 -S 140 ABSTRACT. This article analyzes the mechanics of the metal ultrasonic welding process as a basis for a new solid free-form fabrication technology. Three-dimensional prototypes are constructed by ultrasonic welding of overlaid metal foil laminations, followed by contour cutting of the 2-D layers. This was implemented in the laboratory by a computer-automated ultrasonic welding ...

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Journal: :Machining Science and Technology 2020

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Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1987

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Journal: :Journal of the Japan Society for Technology of Plasticity 2011

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Journal: :Journal of the Japan Institute of Metals and Materials 1993

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