Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Yuki AKIYAMA"'
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 90, Iss 937, Pp 24-00027-24-00027 (2024)
Carbody elastic vibration of a railway vehicle negatively affects the ride comfort of passengers. One of the sources of the vibration is excitation force induced by the longitudinal vibration of the bogies. The excitation force transmits to the carbo
Externí odkaz:
https://doaj.org/article/1957f31112e7465a8ad03e1a42c66f93
Publikováno v:
Heliyon, Vol 10, Iss 14, Pp e34872- (2024)
Wyburn-Mason syndrome is an extremely rare disorder with a limited number of reported cases. Its underlying pathology is poorly understood. This case report focuses on a 41-year-old woman presenting with visual impairments and retinal arteriovenous m
Externí odkaz:
https://doaj.org/article/103b081127104edfa6cc34a9271f6688
Autor:
Takahiro Kogo, Yuki Muraoka, Masaharu Ishikura, Naomi Nishigori, Yuki Akiyama, Masayuki Hata, Akitaka Tsujikawa
Publikováno v:
American Journal of Ophthalmology Case Reports, Vol 34, Iss , Pp 102052- (2024)
Purpose: We report a case of laser-induced retinopathy that posed diagnostic challenges with conventional spectral domain optical coherence tomography (SD-OCT), but was successfully diagnosed using adaptive optics-optical coherence tomography (AO-OCT
Externí odkaz:
https://doaj.org/article/900219087a05455495012edb632eedcd
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3164 (2024)
Global warming and climate change are significantly impacting local climates, causing more intense heat during the summer season, which poses risks to individuals with pre-existing health conditions and negatively affects overall human health. While
Externí odkaz:
https://doaj.org/article/1621ff714da14ddbb72e5557e9ca1aef
Autor:
Yuki Akiyama, Yuki Muraoka, Takahiro Kogo, Naomi Nishigori, Masaharu Ishikura, Kenji Ishihara, Tomoaki Murakami, Sotaro Ooto, Akitaka Tsujikawa
Publikováno v:
Heliyon, Vol 10, Iss 4, Pp e26019- (2024)
Background: We report an unusual case of retinal vein occlusion (RVO) associated with vitreous hemorrhage (VH) without visible traction from the posterior vitreous membrane (PVM) at the bleeding point, challenging our current understanding of VH path
Externí odkaz:
https://doaj.org/article/bb1638c08eae413da19bfda57d0443f4
Autor:
Yuki Akiyama, Ryo Ichibayashi
Publikováno v:
Clinical Case Reports, Vol 11, Iss 11, Pp n/a-n/a (2023)
Key Clinical Message Multiple neodymium magnets can pinch tissue and cause barotrauma. Be careful if the tissue of the penis or foreskin is pinched, as this may cause foreskin necrosis or damage to the urethra.
Externí odkaz:
https://doaj.org/article/576983ff7e6e408099e286943e6db270
Autor:
Ken-ichiro AIDA, Yuki AKIYAMA, Tadao TAKIGAMI, Takahiro TOMIOKA, Takefumi MIYAMOTO, Daichi NAKAJIMA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 924, Pp 23-00129-23-00129 (2023)
Vertical vibrations in railway vehicles are not only induced by track irregularity but also affected by the rotation of wheelsets with small mass imbalance. It is known that the excitation force generated by the rotation of wheelsets is transmitted f
Externí odkaz:
https://doaj.org/article/cd1d6cba0378499295be5db0a4d703b0
Autor:
Hiroshi Takahashi, Yasuchika Aoki, Junya Saito, Arata Nakajima, Masato Sonobe, Yorikazu Akatsu, Shinji Taniguchi, Manabu Yamada, Keita Koyama, Yuki Akiyama, Yasuhiro Shiga, Kazuhide Inage, Sumihisa Orita, Yawara Eguchi, Satoshi Maki, Takeo Furuya, Tsutomu Akazawa, Masao Koda, Masashi Yamazaki, Seiji Ohtori, Koichi Nakagawa
Publikováno v:
BMC Musculoskeletal Disorders, Vol 20, Iss 1, Pp 1-10 (2019)
Abstract Background Recent reports indicate that oxidative stress induced by reactive oxygen species is associated with the pathobiology of neurodegenerative disorders that involve neuronal cell apoptosis. Here we conducted a cross-sectional study to
Externí odkaz:
https://doaj.org/article/4f5d851b4ead4d1cb440a8ecf379f3c0
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 902, Pp 21-00019-21-00019 (2021)
In order to investigate the vibration characteristics of railway vehicle carbodies, some sorts of analytical models have been proposed, such as simple beam, box-type, and finite element models. These models are constructed based on the equations of m
Externí odkaz:
https://doaj.org/article/6423729069f643af9083f2b70367befc
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 902, Pp 21-00075-21-00075 (2021)
This paper presents a method for reducing vertical vibrations in a railway vehicle carbody by supporting underfloor equipment using high-damping elastic mounts. This is a kind of dynamic vibration absorber utilizing underfloor equipment as a mass ele
Externí odkaz:
https://doaj.org/article/6f2c23a1a55d44aea4cfd7a04712fde2