Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kondo, Hiroo*; Fujisato, Atsushi*; Yamaoka, Nobuo*; Inoue, Shoji*; Miyamoto, Seiji*; Iida, Toshiyuki*; Nakamura, Hiroo; Ida, Mizuho*; Matsushita, Izuru*; Muroga, Takeo*; et al.
Fusion Engineering and Design, 75-79, p.865 - 869, 2005/11
Times Cited Count：21 Percentile：79.04(Nuclear Science & Technology)no abstracts in English
Ida, Mizuho*; Horiike, Hiroshi*; Akiba, Masato; Ezato, Koichiro; Iida, Toshiyuki*; Inoue, Shoji*; Miyamoto, Seiji*; Muroga, Takeo*; Nakamura, Hideo; Nakamura, Hiroshi*; et al.
Journal of Nuclear Materials, 307-311(Part2), p.1686 - 1690, 2002/12
Times Cited Count：6 Percentile：39.54(Materials Science, Multidisciplinary)no abstracts in English
; Miyoshi, Yoshinori
Journal of Nuclear Science and Technology, 23(9), p.840 - 842, 1986/00
Times Cited Count：2 Percentile：42.61(Nuclear Science & Technology)no abstracts in English
Matsui, Hiroya; Ozaki, Yusuke; Kimoto, Kazushi*; Ichikawa, Yasuaki*
no journal, ,
The quantitative estimation of the time dependent behavior of a host rock is important to confident the design of a plug in HLW repository. On the other hand, interaction between rock and groundwater may affect with the time dependent behavior. Therefore, it is need to establish the model such a coupling process and estimate a distribution of micro crack in rock quantitatively. The paper report the results of the study on evaluation of the properties of a crystalline rock using of surface wave for these purpose.
Kimoto, Kazushi*; Okano, Aoi*; Saito, Takayasu*; Sato, Tadanobu*; Matsui, Hiroya
no journal, ,
This study investigates the propagation characteristics of high frequency surface wave in a granite block by ultrasonic measurements. To this end, a surface wave field excited by a line-focus transducer is scanned finely over a rectangular aperture with a laser Doppler vibrometer. From the measured waveforms, the spatial distribution of Fourier phase is reconstructed, and the structure of the wave front system is investigated. Due to the heterogeneity of the granite, the wave fronts fluctuate spatially at a rate dependent on the ultrasonic frequency. The intensity of the fluctuation is then quantified as a local wavenumber vector. It was found as a result that the granite sample can be characterized by a random wave number whose probability density is frequency dependent, asymmetric and non-Gaussian having a finite support.
