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Katsuya Nakamura, Yoshikazu Kobayashi, Kenichi Oda and Satoshi Shigemura
Acoustic emission (AE) source localization has been used to visualize progress failures generated in a wide variety of materials. In the conventional approaches, AE source localization algorithms assume that the AE signal is propagated as a straight line...
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Xin Qiao, Yoshikazu Kobayashi, Kenichi Oda and Katsuya Nakamura
This study developed a novel acoustic emission (AE) tomography algorithm for non-destructive testing (NDT) based on Lasso regression (LASSO). The conventional AE tomography method takes considerable measurement data to obtain the elastic velocity distrib...
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Shinjiro Yano, Toshio Okazumi, Yoshihisa Iwasaki, Masahiro Yamaguchi, Kenichi Nakamura, Takuhiro Kanayama, Daikichi Ogawada, Akiko Matsumura, Martin Gomez-Garcia and Taikan Oki
Water footprint assessments contribute to a better understanding of potential environmental impacts related to water and have become essential in water management. The methodologies for characterizing such assessments, however, usually fail to reflect te...
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Kenichi Azuma, Katsuyasu Kouda, Masashi Nakamura, Saeko Fujita, Yoshio Tsujino, Michiko Uebori, Shigeto Inoue and Shuichi Kawai
Components extracted from cedar timber have been reported to have stress-reducing effects in humans. If the positive effects of cedar timber in indoor environments are scientifically proven, an indoor environment that utilizes cedar timber may contribute...
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