The Judging Method of Stability of Japanese Castle Masonry Walls

Tanaka, Kunihiro; Mitani, Yoji; Yamada, Kiyoomi

doi:10.2208/jscej.1999.638_371

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2011

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“…Various control methods have been proposed to eliminate the nonlinearity. [6][7][8][9][10][11][12][13][14][15][16] The nonlinearity is related to the shape of vibration loci at the friction head of the transducer. The shape of the vibration locus of general ultrasonic motors cannot be changed arbitrarily, because the two vibration modes that compose the locus are coupled strongly with each other.…”

Section: Introductionmentioning

confidence: 99%

Improvements in Controllability of Ultrasonic Linear Motors by Longitudinal-Bending Multilayered Transducers with Independent Electrodes

Takano

Hirosaki

Takimoto

et al. 2011

Jpn. J. Appl. Phys.

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We have computed the x-ray absorption spectrum for the Ti K-edge in rutile titanium dioxide (TiO 2 ) in the frame of the multiple scattering approach, varying the atom positions within the coordination sphere. This allowed us to understand the origin of the absorption structure variation. The analysis has been achieved by making distortions of the axial and equatorial Ti-O distances or of the O eq -Ti-O eq equatorial angle along the c axis. Computations are performed using FEFF (version 6) code for TiO 2 with Dirac-Hara and Hedin-Lundqvist exchange potentials. From the results, we can better understand why the amplitude of one or several structures is modified referring to TiO 2 , when a variation of the local geometry occurs. † Current address:

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