Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Makoto Takami"'
Autor:
Thatree Mamee, Zaiqi Lou, Katsuhiro Hata, Makoto Takamiya, Takayasu Sakurai, Shin-Ichi Nishizawa, Wataru Saito
Publikováno v:
IEEE Access, Vol 12, Pp 96936-96945 (2024)
The health monitoring prediction of power devices is vital for power electronics applications such as renewable converters, electric vehicles, and machine drives. One significant failure mode in the power cycle degradation of Insulated Gate Bipolar T
Externí odkaz:
https://doaj.org/article/56cc239cec64451d8dbdeb6da0aa6792
Publikováno v:
Power Electronic Devices and Components, Vol 7, Iss , Pp 100054- (2024)
This paper reports the mechanism of gate voltage spike in the turn-off operation by a digital gate control. In the previous work, it was clarified that the gate voltage spike Vg_spike was generated by parasitic inductance and a large gate current cha
Externí odkaz:
https://doaj.org/article/9fbf9ea7b9d046df82c97feaa7773608
Publikováno v:
Power Electronic Devices and Components, Vol 6, Iss , Pp 100047- (2023)
This paper aims to clarify the effect of asymmetric gate inductance Lg and emitter inductance Le inside power modules with two parallel-connected IGBTs on switching characteristics when a three-step digital gate driver is employed. Five types of IGBT
Externí odkaz:
https://doaj.org/article/db9bf21cb1e24e7da7ea335324224733
Publikováno v:
Power Electronic Devices and Components, Vol 6, Iss , Pp 100052- (2023)
This paper presents a new detection method of bond wire lift-off in Insulated Gate Bipolar Transistor (IGBT) power module. The bond wire lift-off is a major failure mode in power cycle degradation of the IGBT module, and many monitoring methods have
Externí odkaz:
https://doaj.org/article/8871d5630c9b4163bbfac6019ba62d7d
Publikováno v:
IEEE Access, Vol 11, Pp 74364-74378 (2023)
This paper presents an innovative approach to achieve ultralow-latency convolutional neural network (CNN) processing, which is critical for real-time image processing applications such as autonomous driving and virtual reality. Traditional CNN accele
Externí odkaz:
https://doaj.org/article/d5103e7221c14c71996bdb3516541686
Publikováno v:
IEEE Access, Vol 11, Pp 6632-6640 (2023)
This paper clarifies the effect of gate inductance $L_{g}$ inside IGBT modules on gate voltage spikes when a digital gate driver is employed. Three IGBT modules with different $L_{g}$ were fabricated to implement double pulse tests by conventional ga
Externí odkaz:
https://doaj.org/article/c3482012efd14d0484119e4a6246232d
Publikováno v:
Langenbeck's Archives of Surgery. 397:945-950
We aimed at investigating the efficacy of multidetector computed tomography (MDCT) angiogram reconstructed using the maximum intensity projection (MIP) technique for the assessment of perigastric vascular anatomy before laparoscopy-assisted gastrecto
Publikováno v:
Journal of Organometallic Chemistry. 694:630-636
Addition of silyl and germylmethyl azides ( 1 ) to fullerene C 60 at 50 °C through [2+3] cycloaddition led to the formation of the triazoline adducts ( 2 ). Subsequently, heating 2 at 100 °C in the solid state, caused N 2 extrusion producing two di
Autor:
Mitsugu Ishizawa, Kazuhiro Imamura, Jun Matsumoto, Akira Oshima, Rie Kobayashi, Makoto Takami
Publikováno v:
Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 70:2347-2352
胃小細胞癌は極めて稀で発育進展が速く予後不良な疾患である.今回比較的長期生存が得られている胃小細胞癌の2例を経験したので報告する.症例1:80歳女性.卵巣癌術後経過観察中,
Publikováno v:
Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 68:72-75
今回われわれは, 胃癌を合併した皮膚筋炎の4例を経験したので報告する. 症例1は皮膚筋炎診断後, 9年目に検診で発見された早期胃癌で, 術後皮膚筋炎の病状変化なく, 無再発生存中である