Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Masaaki IZUMI"'
Autor:
Kotaro Suemitsu, MD, PhD, Osamu Iida, MD, PhD, Sho Torii, MD, PhD, Yosuke Hata, MD, Taku Toyoshima, MD, Masaaki Izumi, MD, PhD
Publikováno v:
Journal of Vascular Surgery Cases and Innovative Techniques, Vol 10, Iss 3, Pp 101447- (2024)
A fluoropolymer-based drug-eluting stent was implanted in an arteriovenous graft outflow venous stenosis. Two and a half years later, due to a local infection, the stent was removed surgically, and a pathological evaluation was conducted. The stent s
Externí odkaz:
https://doaj.org/article/d447accfa75647739f3b386df33c5adf
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 919, Pp 22-00293-22-00293 (2023)
This study aims to locate defects in polymer electrolyte fuel cells (PEFCs) caused by electrolyte breakage, electrical contact failure, contamination of electrical insulators, or the like in an easy and instantaneous manner by a noninvasive method. S
Externí odkaz:
https://doaj.org/article/c2151951bcdd4017944e0cb11db7407b
Autor:
Yuki Matsuoka, MD, MBA, Osamu Iida, MD, Kotaro Suemitsu, MD, PhD, Kanako Oka, MD, Naomi Ota, MD, Masaaki Izumi, MD, PhD
Publikováno v:
Journal of Vascular Surgery Cases and Innovative Techniques, Vol 7, Iss 2, Pp 326-331 (2021)
We implanted a fluoropolymer-based paclitaxel-eluting stent (FP-PES) in four hemodialysis patients with refractory outflow venous stenosis of their arteriovenous graft. The mean observation period after FP-PES implantation was 11.5 ± 4.7 months (ran
Externí odkaz:
https://doaj.org/article/0d178a6e63e64cb5b381e728535a9f99
Publikováno v:
Mechanical Engineering Journal, Vol 7, Iss 5, Pp 20-00239-20-00239 (2020)
It is important for the improvement of the performance and durability of solid oxide fuel cells (SOFCs) to clarify gas transfer phenomena in their porous electrodes. This study proposes two methods, an oxygen sensor method and an electrochemical impe
Externí odkaz:
https://doaj.org/article/3f6128e34b59425090436ccbc8c8b0ae
Publikováno v:
SICE Journal of Control, Measurement, and System Integration, Vol 11, Iss 6, Pp 470-476 (2018)
Nondestructive inspection of the sizes and positions of defect regions in a fuel cell is an indispensable task in order to ensure their practical use. In the present paper, a level set method for estimating the defects in a membrane electrode assembl
Externí odkaz:
https://doaj.org/article/7e0609783fc94404a036bfe562d2a343
Autor:
Takashi Ueda, Yoshio Takesue, Issei Tokimatsu, Taiga Miyazaki, Nana Nakada-Motokawa, Miki Nagao, Kazuhiko Nakajima, Hiroshige Mikamo, Yuka Yamagishi, Kei Kasahara, Shingo Yoshihara, Akira Ukimura, Koichiro Yoshida, Naomi Yoshinaga, Masaaki Izumi, Hiroshi Kakeya, Koichi Yamada, Hideki Kawamura, Kazuo Endou, Kazuaki Yamanaka, Mutsunobu Yoshioka, Kayoko Amino, Hiroki Ikeuchi, Motoi Uchino, Yoshitsugu Miyazaki
Publikováno v:
PLoS ONE, Vol 14, Iss 5, p e0216956 (2019)
BACKGROUND:The incidence of ocular candidiasis (OC) in patients with candidemia varies across different reports, and the issue of whether routine ophthalmoscopy improves outcomes has been raised. This study investigated the incidence of OC and evalua
Externí odkaz:
https://doaj.org/article/9cdb20e6bf4b4db48f55696d482f269c
Autor:
Masaaki IZUMI, Kyoma ODA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 857, Pp 17-00317-17-00317 (2018)
Mass transfers in porous electrodes of fuel cells affect the performance of the fuel cells. The aim of this study is to verify effectiveness of a measurement method of a hydrogen gas concentration in a fuel electrode of a solid oxide fuel cell (SOFC)
Externí odkaz:
https://doaj.org/article/2781185a2922468183863ea2d59dd140
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 82, Iss 844, Pp 16-00211-16-00211 (2016)
The local heat transfer on a rotating cylinder was measured by Mach-Zehnder interferometer. The rotating cylinder was set in a restricted flow with narrow spaces by two horizontal plates. The two plates were made by copper or polycarbonate. The heat
Externí odkaz:
https://doaj.org/article/a711a94cf5c94ec2bb39a0368718590a
Publikováno v:
AIP Advances, Vol 6, Iss 5, Pp 056603-056603-8 (2016)
In this paper, we propose novel inversion methods to estimate defects or localized current anomalies in membrane electrode assemblies (MEAs) in polymer electrolyte fuel cells (PEFCs). One method is an imaging approach with L1-norm regularization that
Externí odkaz:
https://doaj.org/article/83cd4e6369e94800803d8f4e4ebb7fde
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 816, Pp TEP0233-TEP0233 (2014)
Performance of an anode-supported solid oxide fuel cell was investigated under several conditions of current cycles. The current cycles between 0 A/cm2 and the maximum current density were repeated. The cell was composed of 8 mol % Y2O3-ZrO2 (YSZ) el
Externí odkaz:
https://doaj.org/article/bdd8dfed223b4279bb790797af75d297