Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Masashi,Koyama"'
Publikováno v:
Engineering Proceedings, Vol 51, Iss 1, p 22 (2023)
A non-destructive inspection technique using infrared thermography and ultrasound excitation (ultrasound-excited thermography method) was focused on in this study. Although this method is effective in the detection of closed defects, the standing wav
Externí odkaz:
https://doaj.org/article/087b2835e3ee4a98bb077a6f491d7d1d
Autor:
Miyu Sugai, Masashi Koyama
Publikováno v:
Results in Materials, Vol 17, Iss , Pp 100356- (2023)
Flame retardants, such as aluminum hydroxide (Al(OH)3), are generally added to glass fiber–reinforced plastic (GFRP) to make the latter nonflammable, but this method increases resin viscosity. This increase in viscosity leads to difficulties in the
Externí odkaz:
https://doaj.org/article/48aaeeb611e1468f83e3933a7f2ccb15
Autor:
Miyu SUGAI, Masashi KOYAMA
Publikováno v:
Journal of the Society of Materials Science, Japan. 71:983-988
Autor:
Hiroshi Mano, Kenichi Kitamura, Mayumi Tachibana, Ai Suzuki, Toyohiro Yamauchi, Tomomi Murakami, Yoshinori Okumura, Masashi Koyama, Kenji Shimizu
Publikováno v:
Cureus.
Autor:
Norihiro Murakami, Jun-Ichi Kawada, Azumi Watanabe, Toshinao Arakawa, Takamasa Kano, Takako Suzuki, Ryo Tanaka, Daiei Kojima, Yoshihiko Kawano, Shin Hoshino, Hideki Muramatsu, Yoshiyuki Takahashi, Yoshiaki Sato, Masashi Koyama, Jun Natsume
Publikováno v:
PLoS ONE, Vol 13, Iss 12, p e0209595 (2018)
ObjectiveUrinary tract infection (UTI), one of the most common bacterial infections occurring during infancy and early childhood, is frequently associated with vesicoureteral reflux (VUR). Although several guidelines recommend performing ultrasonogra
Externí odkaz:
https://doaj.org/article/628631aca2354e59b644ad6580a4939d
Autor:
Masashi Ishikawa, Sou Ishihara, Hideo Nishino, Masashi Koyama, Hideyuki Kasano, Hiroshi Hatta, Shin Utsunomiya
Publikováno v:
Proceedings, Vol 27, Iss 1, p 16 (2019)
Experiments and numerical simulations for a carbon fiber reinforced plastic specimen were performed to investigate the relationship between the time required for detecting subsurface defects and the frequency components of the thermal waves propagati
Externí odkaz:
https://doaj.org/article/8d7e98d342ca4c63872ae2118b755a23
Autor:
Jun Yoshimoto, Kazuya Sanada, Masaki Nii, Yasuhiko Tanaka, Masashi Koyama, Norie Mitsushita, Mizuhiko Ishigaki, Sung-Hae Kim, Keisuke Sato
Publikováno v:
Pediatric Cardiology and Cardiac Surgery. 37:18-26
Publikováno v:
The Proceedings of the Transportation and Logistics Conference. :PS2-13
Publikováno v:
Mechanical Engineering Journal, Vol 3, Iss 4, Pp 16-00261-16-00261 (2016)
A method for connecting a driving shaft to a three-dimensional composite disk via a polymer ring was examined to achieve stable rotation at high rotation speeds. Polyoxymethylene (POM) was adopted as the polymer ring material. Compression test was co
Externí odkaz:
https://doaj.org/article/e8461b672ede402d993242f4e452050c
Publikováno v:
Composite Structures. 209:515-522
In this study, inspection capability of active thermographic nondestructive inspection using the laser scanning method was examined. Carbon fiber reinforced plastic (CFRP) specimens were heated using a CO 2 laser scanning device and their inspection