Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Naohiro Shimizu"'
Autor:
Arun Kumar Dhasiyan, Frank Wilson Amalraj, Swathy Jayaprasad, Naohiro Shimizu, Osamu Oda, Kenji Ishikawa, Masaru Hori
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract Using our recently developed radical-enhanced metalorganic chemical vapor deposition (REMOCVD) technique, we have grown gallium nitride (GaN) on bulk GaN and GaN on Si templates. Three features make up this system: (1) applying very high-fre
Externí odkaz:
https://doaj.org/article/92d0d66c5aa24cb99c6eaaf75013cf14
Publikováno v:
AIP Advances, Vol 12, Iss 2, Pp 025216-025216-6 (2022)
Carbon nanowalls (CNWs) with average wall-to-wall distances ranging from 100 to 3300 nm were synthesized using a radical injection plasma-enhanced chemical vapor deposition system. Application of a negative high voltage to the growth substrate using
Externí odkaz:
https://doaj.org/article/fafbfa8adcd24e09bde56c1a348ea9d5
Autor:
Frank Wilson Amalraj, Arun Kumar Dhasiyan, Yi Lu, Naohiro Shimizu, Osamu Oda, Kenji Ishikawa, Hiroki Kondo, Makoto Sekine, Nobuyuki Ikarashi, Masaru Hori
Publikováno v:
AIP Advances, Vol 8, Iss 11, Pp 115116-115116-5 (2018)
We developed a new method of GaN growth using Radical-Enhanced Metalorganic Chemical Vapor Deposition (REMOCVD) technology by which Gallium Nitride (GaN) grows at low temperatures without ammonia gas. In this method, we investigated the effect of N2/
Externí odkaz:
https://doaj.org/article/1e3967d4ff33405c8195d3ed00bc670b
Autor:
Ryusei Sakai, Tomonori Ichikawa, Hiroki Kondo, Kenji Ishikawa, Naohiro Shimizu, Takayuki Ohta, Mineo Hiramatsu, Masaru Hori
Publikováno v:
Nanomaterials, Vol 11, Iss 2, p 262 (2021)
Carbon nanowalls (CNWs), which are vertically oriented multi-layer graphene sheets, were employed in surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) measurements to detect low-molecular-weight organic compounds. CNWs substra
Externí odkaz:
https://doaj.org/article/8cacc234d50b493fafecd9158f13cc50
Publikováno v:
Journal of Society of Cosmetic Chemists of Japan. 56:113-120
Autor:
Kenji Ishikawa, Reiko Tanaka, Satoshi Ino, Hiroki Hosoe, Masaru Hori, Naohiro Shimizu, Yosuke Inoue, Ranjit R. Borude, Osamu Oda
Publikováno v:
IEEE Transactions on Plasma Science. 49:2893-2900
Simple low-temperature pulsed power dissociation method for high resistive liquid is proposed in this article. Active high voltage rebound tailing pulse (RTP) diodes are adopted to conventional high voltage pulse power sources. In order to explain th
Publikováno v:
The Review of scientific instruments. 93(5)
This study proposes an improved high-voltage fast impulse generator based on an inductive energy storage system with a 4 kV static induction thyristor. Nanosecond-scale impulses with pulse widths below 100 ns and a peak voltage of up to 15 kV can be
Publikováno v:
Carbon. 161:403-412
Carbon nanowalls (CNWs) are vertically standing, interconnecting flake- or wall-like collections of graphene sheets. In the present work, this material was synthesized by applying precisely controlled high-voltage nanosecond pulses to a substrate usi
Autor:
Naohiro Shimizu, Ranjit R. Borude, Reiko Tanaka, Osamu Oda, Hiroki Hosoe, Satoshi Ino, Yosuke Inoue, Masaru Hori
Publikováno v:
Journal of The Electrochemical Society. 169:054507
A pulsed power water dissociation method applying a couple of a porous-ceramic electrode, wetted with water, and an opposite dry electrode in the atmospheric air was studied. The basic concept for this study is composed of “pulsed power activation
Autor:
Daichi Kawamoto, Yoshiki Matsui, Mitsuru Shinagawa, Naohiro Shimizu, Kohei Hamamura, Hiroshi Nakamura, Naoya Takahashi, Masaya Sugino, Sotaro Sawa
Publikováno v:
GCCE
This paper presents the electric field communication using a wide metal plate for an intra-vehicle network service. The transmission characteristics of a wide metal plate were analyzed by an electro-magnetic field simulation and an experiment for dev