Zobrazeno 1 - 10
of 959
pro vyhledávání: '"Keiji, Wada"'
Autor:
Tetsuhiro Ueda, Toshihide Takeuchi, Nobuhiro Fujikake, Mari Suzuki, Eiko N. Minakawa, Morio Ueyama, Yuzo Fujino, Nobuyuki Kimura, Seiichi Nagano, Akio Yokoseki, Osamu Onodera, Hideki Mochizuki, Toshiki Mizuno, Keiji Wada, Yoshitaka Nagai
Publikováno v:
Acta Neuropathologica Communications, Vol 12, Iss 1, Pp 1-15 (2024)
Abstract The abnormal aggregation of TDP-43 into cytoplasmic inclusions in affected neurons is a major pathological hallmark of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Although TDP-43 is aberrantly accumulated in the ne
Externí odkaz:
https://doaj.org/article/01c84c3ce0384f509847436ec4ff47eb
Autor:
Shin-Ichiro Hayashi, Keiji Wada
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 5, Pp 709-717 (2024)
This paper proposes a gate drive circuit with a condition monitoring function for detecting the gate oxide degradation in silicon carbide (SiC) metal–oxide–semiconductor field-effect transistors (MOSFETs). Trapped charges in the gate oxide can ca
Externí odkaz:
https://doaj.org/article/92b2b972cf7c4562a26e606ad6b3be03
Autor:
Satoru Hatsukade, Keiji Wada
Publikováno v:
IEEE Access, Vol 12, Pp 71145-71156 (2024)
Modern electric railway vehicles are faced with the challenge of achieving electromagnetic compatibility (EMC) compliance with railway signaling systems. Currently, no established countermeasures or design methods that guarantee passing the EMC compl
Externí odkaz:
https://doaj.org/article/df07c8a1b8514291bcd305778dd3e37f
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 5, Pp 392-401 (2024)
This paper proposes a solid-state circuit breaker comprising silicon carbide (SiC) MOSFETs and a SiC diode, based on the principle of avalanche voltage clamping. The key challenge in realizing a solid-state circuit breaker lies in reducing conduction
Externí odkaz:
https://doaj.org/article/9c0b98bb4ce04e5ab6dcb986bad8fdb3
Autor:
Tomoyuki Mannen, Keiji Wada
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 4, Pp 703-715 (2023)
This article proposes an improved overvoltage suppression method for the initial charge of the dc capacitor in voltage source power converters. The proposed method makes multiple short-circuits in each leg, utilizing power devices in the converter. T
Externí odkaz:
https://doaj.org/article/85cda3363eca405ea767ab7a4f414d84
Autor:
Ryosuke Shigetomi, Keiji Wada
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 4, Pp 442-449 (2023)
The development of SiC and GaN power devices to achieve high-speed switching operations in power converter circuits is underway. The stray inductance caused by the bus bar geometries between DC capacitors and power devices influences high-speed switc
Externí odkaz:
https://doaj.org/article/9ce40c650bdd4aa59716d9638e1543c9
Autor:
Satoru Hatsukade, Keiji Wada
Publikováno v:
IEEE Access, Vol 11, Pp 20418-20425 (2023)
In the traction system of rolling stock, the common-mode (CM) voltage is over 500 V, so the inductors that suppress the CM current are prone to saturation. To prevent saturation, the traction inverter needs many numbers of cores inside CM inductors,
Externí odkaz:
https://doaj.org/article/3d92729084c746a79cb145da02e58f54
Autor:
Yuzo Fujino, Morio Ueyama, Taro Ishiguro, Daisaku Ozawa, Hayato Ito, Toshihiko Sugiki, Asako Murata, Akira Ishiguro, Tania Gendron, Kohji Mori, Eiichi Tokuda, Tomoya Taminato, Takuya Konno, Akihide Koyama, Yuya Kawabe, Toshihide Takeuchi, Yoshiaki Furukawa, Toshimichi Fujiwara, Manabu Ikeda, Toshiki Mizuno, Hideki Mochizuki, Hidehiro Mizusawa, Keiji Wada, Kinya Ishikawa, Osamu Onodera, Kazuhiko Nakatani, Leonard Petrucelli, Hideki Taguchi, Yoshitaka Nagai
Publikováno v:
eLife, Vol 12 (2023)
Abnormal expansions of GGGGCC repeat sequence in the noncoding region of the C9orf72 gene is the most common cause of familial amyotrophic lateral sclerosis and frontotemporal dementia (C9-ALS/FTD). The expanded repeat sequence is translated into dip
Externí odkaz:
https://doaj.org/article/8c6f0fd5d0eb4801aca51cdb76aeb73a
Publikováno v:
Spine Surgery and Related Research, Vol 6, Iss 3, Pp 233-239 (2022)
Introduction: Spine surgery is challenging in hemodialysis (HD)-dependent patients owing to their poor general condition. However, postoperative complications and the mortality and survival rates have not been specifically evaluated in a wide series.
Externí odkaz:
https://doaj.org/article/1ce39a92a6a64569ad5290c6a0f00a58
Publikováno v:
PLoS ONE, Vol 18, Iss 5, p e0285893 (2023)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the pandemic of the coronavirus disease 2019 (COVID-19), resulting in a global lockdown in 2020. This stagnation in human activities ('anthropause') has been reported to affect the b
Externí odkaz:
https://doaj.org/article/aa2c234c314242deaa190d2a19e8f63c