M
Masayuki Nagao
Researcher at Toyohashi University of Technology
Publications - 353
Citations - 2586
Masayuki Nagao is an academic researcher from Toyohashi University of Technology. The author has contributed to research in topics: Space charge & Dielectric. The author has an hindex of 23, co-authored 353 publications receiving 2422 citations.
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Journal ArticleDOI
DC conduction and electrical breakdown of MgO/LDPE nanocomposite
Yoshinobu Murakami,M. Nemoto,S. Okuzumi,S. Masuda,Masayuki Nagao,Naohiro Hozumi,Y. Sekiguchi +6 more
TL;DR: In this paper, the authors investigated the basic electric properties of nano-sized magnesium oxide (MgO) / low-density polyethylene (LDPE) nanocomposite under DC voltage application, the volume resistivity, the space charge distribution and the breakdown strength were investigated.
Journal ArticleDOI
Dielectric properties of XLPE/Sio2 nanocomposites based on CIGRE WG D1.24 cooperative test results
Toshikatsu Tanaka,A. Bulinski,Jerome Castellon,Michel Frechette,Stanislaw Gubanski,Josef Kindersberger,G.C. Montanari,Masayuki Nagao,Peter Morshuis,Yasuhiro Tanaka,S. Pelissou,Alun S. Vaughan,Yoshimichi Ohki,C. Reed,Simon Sutton,S. J. Han +15 more
TL;DR: A comprehensive experimental investigation of XLPE and its nanocomposite with fumed silica (SiO2) has been performed by CIGRE Working Group D1.24, in cooperative tests conducted by a number of members; covering materials characterization, real and imaginary permittivity, dc conductivity, space charge formation, dielectric breakdown strength, and partial discharge resistance as discussed by the authors.
Journal ArticleDOI
High-field conduction and breakdown in insulating polymers. Present situation and future prospects
TL;DR: In this article, the results of electrical conduction and breakdown research reported mainly after 1980 in Japan, and comment on the present situation and future prospect of research work in this field are summarized.
Journal ArticleDOI
Time–frequency analysis for pulse driven ultrasonic microscopy for biological tissue characterization
Naohiro Hozumi,R. Yamashita,Cheol Kyou Lee,Masayuki Nagao,Kazuto Kobayashi,Yoshifumi Saijo,Mami Tanaka,Naohiko Tanaka,Shigeo Ohtsuki +8 more
TL;DR: A time-frequency analysis was applied to determine the sound speed thorough the tissue with Frequency dependence of sound speed was obtained with a myocardium of a rat sliced into 10 microm.
Proceedings ArticleDOI
DC conduction and electrical breakdown of MgO/LDPE nanocomposite
S. Masuda,S. Okuzumi,R. Kurniant,Yoshinobu Murakami,Masayuki Nagao,Yoshinao Murata,Y. Sekiguchi +6 more
TL;DR: In this paper, the authors investigated basic electric properties of nano-sized magnesium oxide (MgO)/low-density polyethylene (LDPE) nanocomposite under DC voltage application, the volume resistivity, the space charge distribution, breakdown strength and the short circuit tree were investigated.