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Your search keyword '"Hamada, Mamoru"' showing total 9 results
Start Over Author "Hamada, Mamoru" Publisher institute of electrical and electronics engineers, inc.
9 results on '"Hamada, Mamoru"'

1. The characteristics of Bi-2223/Ag conductor for high field application

Author

Seyong Choi, Kiyoshi, Tsukasa, Matsumoto, Shinji, Itoh, Kikuo, Hase, Takashi, Zaitsu, Kyoji, Hamada, Mamoru, and Sugano, Michinaka

Subjects
Bismuth -- Electric properties, Bismuth -- Magnetic properties, Magnetic fields -- Analysis, Nuclear magnetic resonance spectroscopy -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

The critical current and index value of Bi-2223/Ag superconductor is evaluated in high magnetic field. The Bi-2223/Ag conductor has reached enough potential to realize high field applications over 1 GHz NMR spectrometer.

Published
2008

2. Fabrication test of YBCO coil and multi-tape conductor

Author

Hase, Takashi, Hamada, Mamoru, Hirose, Ryoichi, Nagahama, Yasuhide, Shikimachi, Koji, and Nagaya, Shigeo

Subjects
Yttrium barium copper oxides -- Electric properties, Magnetic fields -- Measurement, Electric coils -- Magnetic properties, Business, Electronics, Electronics and electrical industries
Abstract

The fabrication and properties of a testing coil composed of six pancake-coils with a YBCO coated conductor are discussed. Findings reveal that the coil generates magnetic field up to 0.65 T at 65 K in zero external magnetic field.

Published
2007

3. High field and high temperature characteristics of small test coil using CVD-YBCO tape for SMES

Author

Shikimachi, Koji, Hirano, Naoki, Nagaya, Shigeo, Matsuo, Hiroyuki, Nishijima, Gen, Awaji, Satoshi, Watanabe, Kazuo, Ishizuka, Masayuki, and Hamada, Mamoru

Subjects
Magnetic fields -- Measurement, Yttrium barium copper oxides -- Electric properties, Yttrium barium copper oxides -- Magnetic properties, Electric coils -- Magnetic properties, Business, Electronics, Electronics and electrical industries
Abstract

The article examines the high magnetic field and high temperature characteristics of YBCO coils. Results suggest that the YBCO coil has high potential in short-time over-current operations at high temperatures.

Published
2007

4. Present status of 920 MHz high-resolution NMR spectrometers

Author

Kiyoshi, Tsukasa, Ito, Yutaka, Ito, Satoshi, Hayashi, Noriaki, Matsumoto, Shinji, Wada, Hitoshi, Kikuchi, Jun, Maeda, Hideaki, Yokoyama, Shigeyuki, Hirota, Hiroshi, Ozaki, Osamu, Hamada, Mamoru, Miki, Takashi, Yoshikawa, Masatoshi, Suematsu, Hiroto, and Sato, Akio

Subjects
Superconducting magnets -- Electric properties, Superconducting magnets -- Testing, Nuclear magnetic resonance -- Installation, Technology installation instructions, Business, Electronics, Electronics and electrical industries
Abstract

The first 920 MHz high-resolution Nuclear Magnetic Resonance (NMR) magnets are installed at the Tsukuba Magnet Laboratory of the National Institute for Material Science. The signal-to-nose ratio of 0.1 percent ethylbenzene using a proton-selective probe is high as 2981.

Published
2004

5. Improved fabrication process for Nb(sub 3)Sn superconductors with Ta-Sn powder core

Author

Kato, Hiroyuki, Miyazaki, Takayoshi, Hase, Takashi, Hamada, Mamoru, and Tachikawa, Kyoji

Subjects
Superconducting magnets -- Electric properties, Superconductors -- Electric properties, Business, Electronics, Electronics and electrical industries
Abstract

A study is conducted to develop Nb3Sn superconductors made by the powder-in-tube (PIT) process for application to particular accelerator magnets, high field magnets and many other fields. The composition and the microstructure of Nb(sub 3)Sn layer in the wires with Nb and Ta sheath are examined.

Published
2004

6. Operation of a 920-MHz high-resolution NMR magnet at TML

Author

Kiyoshi, Tsukasa, Yoshikawa, Masatoshi, Sato, Akio, Itoh, Kikuo, Matsumoto, Shinji, Wada, Hitoshi, Ito, Satoshi, Miki, Takashi, Miyazaki, Takayoshi, Kamikado, Takeshi, Ozaki, Osamu, Hase, Takashi, Hamada, Mamoru, Hayashi, Seiji, Kawate, Yoshio, and Hirose, Ryoichi

Subjects
Nuclear magnetic resonance -- Research, Superconducting magnets -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Operation of a 920-MHz high-resolution nuclear magnetic resonance (NMR) magnet at Tsukuba Magnet Laboratory (TML) is described and discussed.

Published
2003

7. Persistent-mode operation of a 920 MHz high-resolution NMR magnet

Author

Kiyoshi, Tsukasa, Sato, Akio, Takeuchi, Takao, Itoh, Kikuo, Matsumoto, Shinji, Ozaki, Osamu, Fukushima, Keiji, Wada, Hitoshi, Yoshikawa, Masatoshi, Kamikado, Takeshi, Ito, Satoshi, Miki, Takashi, Hase, Takashi, Hamada, Mamoru, Hayashi, Seiji, Kawate, Yoshio, and Hirose, Ryoichi

Subjects
Japan. National Institute for Materials Science -- Research, Superconducting magnets -- Research, Electrical equipment and supplies industry -- Research, Nuclear magnetic resonance -- Research, Electrical engineering, Business, Electronics, Electronics and electrical industries, European Organization for Nuclear Research -- Conferences, meetings and seminars
Abstract

Research involving a high-field nuclear magnetic resonance (NMR) magnet is reported. The work was accomplished at the Tsukuba Magnet Laboratory at the National Institute for Materials ScienceTsukuba, Ibaraki, Japan.

Published
2002

8. Development and operation of superconducting NMR magnet beyond 900 MHz

Author

Kiyoshi, Tsukas, Sato, Akio, Takeuchi, Takao, Itoh, Kikuo, Matsumoto, Shinji, Ozaki, Osamu, Wada, Hitoshi, Yoshikawa, Masatoshi, Kamikado, Takeshi, Ito,Satoshi, Miki, Takashi, Hase, Takashi, Hamada, Mamoru, Hayashi, Seiji, Kawate, Yoshio, and Hirose, Ryoichi

Subjects
Superconducting magnets -- Design and construction, Business, Electronics, Electronics and electrical industries
Abstract

A superconducting NMR 900 MHz magnet was developed and its operation is described.

Published
2001

9. The measurement and control system for 920 MHz NMR magnet

Author

Miki, Takashi, Ito, Satoshi, Hamada, Mamoru, Yoshikawa, Masatoshi, Sato, Akio, Kiyoshi, Tsukasa, Wada, Hitoshi, Matsumoto, Fumiaki, Nagai, Hideo, Fukui, Shigeo, and Noguchi, Takashi

Subjects
Cryostat -- Electric properties, Nuclear magnetic resonance -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

An automated control and monitoring system is developed for a 920 MHz NMR magnet that is installed at Tsukuba Magnet Laboratory (TML) in April 2002. The cryostat is equipped with an automated control and monitoring system in order to achieve a quick energization and long-term operation with a minimum number of operators.

Published
2004

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