岡 徹雄

  • 1889 引用
  • 22 h指数
1990 …2019
Pureに変更を加えた場合、すぐここに表示されます。

研究成果 1990 2019

フィルター
Article
13 引用 (Scopus)

Improvement of the microstructure of melt-processed Sm-based superconductors

Tazoe, K., Ikuta, H., Yoshikawa, M., Yanagi, Y., Itoh, Y., Oka, T. & Mizutani, U., 2001 1 1, : : Physica C: Superconductivity and its Applications. 357-360, p. 807-810 4 p.

研究成果: Article

Superconducting materials
Gases
atmospheres
microstructure
Microstructure
2 引用 (Scopus)

Improvement of the trapped field performance of a holed superconducting bulk magnet

Yokoyama, K., Igarashi, R., Togasaki, R. & Oka, T., 2015 6 1, : : IEEE Transactions on Applied Superconductivity. 25, 3, 7006763.

研究成果: Article

Magnets
Magnetization
magnets
Magnetic flux
Magnetic fields
trapped magnetic fields
Refrigerators
refrigerators
Magnetic flux
Magnets
2 引用 (Scopus)

Influence of AC transport current balance on AC loss in a two layered polygonal YBCO assembled conductor

Ogawa, J., Fukui, S., Oka, T., Sato, T., Tamura, A., Kasuga, E. & Ryu, K. W., 2012 6 25, : : IEEE Transactions on Applied Superconductivity. 22, 3, 4704804.

研究成果: Article

alternating current
conductors
Superconducting tapes
High temperature applications
tapes
6 引用 (Scopus)

Influence of DC offset transport current on AC loss characteristics in HTS tapes

Ogawa, J., Fukui, S., Oka, T., Sato, T., Kojima, H., Shibayama, M. & Egawa, M., 2011 6 1, : : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3325-3328 4 p., 5621862.

研究成果: Article

Superconducting tapes
tapes
alternating current
direct current
critical current
6 引用 (Scopus)

Influence of high frequency AC magnetic field on trapped magnetic field

Ogawa, J., Fukui, S., Oka, T., Yamaguchi, M., Sato, T., Takada, M., Sato, R. & Tomita, M., 2007 6 1, : : IEEE Transactions on Applied Superconductivity. 17, 2, p. 3024-3027 4 p.

研究成果: Article

trapped magnetic fields
alternating current
Magnetic fields
magnetic fields
equilibrium equations
3 引用 (Scopus)

Influence of the arrangement of HTS tapes inserted in an iron core on AC loss characteristics

Ogawa, J., Fukui, S., Oka, T., Sato, T., Fushimi, A. & Shoda, T., 2014 1 1, : : IEEE Transactions on Applied Superconductivity. 24, 3, 6595123.

研究成果: Article

High temperature superconductors
high temperature superconductors
Tapes
tapes
alternating current
3 引用 (Scopus)
Magnets
magnets
sectors
Magnetic flux
magnetic flux
15 引用 (Scopus)

Influence of transport current distribution on AC transport current loss measurement in an assembled conductor

Ogawa, J., Fukui, S., Oka, T., Sato, T., Shinkai, K., Koyama, T. & Ito, T., 2010 6 1, : : IEEE Transactions on Applied Superconductivity. 20, 3, p. 1300-1303 4 p., 5433294.

研究成果: Article

current distribution
alternating current
conductors
Superconducting tapes
Electric current measurement

Learn-by-doing engineering education programs driven by the engineers of private companies and societies

Oka, T., Harada, S., Tanabe, Y., Narumi, T., Kaneko, F., Sugawara, A., Ishii, N., Nishimura, S., Maruyama, T., Sengoku, M., Ohkawa, H. & Tsubokawa, N., 2013 5 10, : : IEEJ Transactions on Fundamentals and Materials. 133, 4

研究成果: Article

Engineering education
Engineers
Industry
Students
5 引用 (Scopus)

Magnetic and thermal properties of HTS bulk magnet in the pulsed-field magnetizing process

Oka, T., Ishiduka, D., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Murakami, A., 2013 4 1, : : Journal of Superconductivity and Novel Magnetism. 26, 4, p. 1301-1306 6 p.

研究成果: Article

Magnets
Magnetic properties
magnets
Thermodynamic properties
thermodynamic properties

Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

Ogawa, J., Fukui, S., Oka, T., Shidara, N., Iwashita, R. & Ohya, M., 2016 6 1, : : IEEE Transactions on Applied Superconductivity. 26, 4, 7377072.

研究成果: Article

Tapes
tapes
alternating current
Magnetic fields
magnetic fields
6 引用 (Scopus)

Magnetic field distribution of permanent magnet magnetized by static magnetic field generated by HTS bulk magnet

Oka, T., Kawasaki, N., Fukui, S., Ogawa, J., Sato, T., Terasawa, T., Itoh, Y. & Yabuno, R., 2012 6 25, : : IEEE Transactions on Applied Superconductivity. 22, 3, 6101562.

研究成果: Article

magnetic poles
permanent magnets
Permanent magnets
Magnets
Poles
1 引用 (Scopus)

Magnetic Flux Invasion and Field-Capturing in Pulsed-Field Magnetization for Layered MgB<formula><tex>$_2$</tex></formula> Bulk Magnets

Oka, T., Takeda, A., Sasaki, S., Ogawa, J., Fukui, S., Sato, T., Haessler, W. & Yokoyama, K., 2018 1 11, (Accepted/In press) : : IEEE Transactions on Applied Superconductivity.

研究成果: Article

Magnetic flux
Magnets
magnetic flux
Magnetization
magnets
1 引用 (Scopus)

Magnetic Flux Invasion and Field-Capturing in Pulsed-Field Magnetization for Layered MgB2 Bulk Magnets

Oka, T., Takeda, A., Sasaki, S., Ogawa, J., Fukui, S., Sato, T., Scheiter, J., Häßler, W., Katsuki, J., Miura, A. & Yokoyama, K., 2018 6 1, : : IEEE Transactions on Applied Superconductivity. 28, 4, 8255574.

研究成果: Article

Magnetic flux
Magnets
magnetic flux
Magnetization
magnets
3 引用 (Scopus)

Magnetic precipitate separation for Ni plating waste liquid using HTS bulk magnets

Oka, T., Kimura, T., Mimura, D., Fukazawa, H., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Yokoyama, K., Tsujimura, M. & Terasawa, T., 2013 1 15, : : Physica C: Superconductivity and its Applications. 484, p. 325-328 4 p.

研究成果: Article

liquid wastes
Magnetic separation
Bearings (structural)
plating
Plating
8 引用 (Scopus)

Magnetic Separation for Recovering Ni Compounds from Plating Waste with Use of HTS Bulk Magnets

Oka, T., Takayanagi, Y., Machida, S., Ichiju, K., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Tsujimura, M. & Yokoyama, K., 2016 6 1, : : IEEE Transactions on Applied Superconductivity. 26, 4, 7383257.

研究成果: Article

Magnetic separation
plating
Plating
Magnets
Precipitates
9 引用 (Scopus)

Magnetic separation technique for environmental water purification by strong magnetic field generator loading HTS bulk magnets

Oka, T., Tanaka, K., Kimura, T., Mimura, D., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Yokoyama, K. & Yamaguchi, M., 2010 11 1, : : Physica C: Superconductivity and its Applications. 470, 20, p. 1799-1803 5 p.

研究成果: Article

Magnetic separation
water treatment
Ferrosoferric Oxide
Purification
Magnets
1 引用 (Scopus)

Magnetic separation technique for groundwater by five HTS melt-processed bulk magnets arranged in a line

Oka, T., Seki, H., Kimura, T., Mimura, D., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Fujishiro, H., Hayashi, H., Yokoyama, K. & Stiehler, C., 2011 11 1, : : Physica C: Superconductivity and its Applications. 471, 21-22, p. 1506-1510 5 p.

研究成果: Article

Magnetic separation
ground water
magnetic poles
Magnets
Groundwater

Magnetic separation technique using high temperature superconducting bulk magnets and application to plating liquid waste treatment

Oka, T., Fukazawa, H., Yoshizawa, N., Takayanagi, Y., Ogawa, J., Fukui, S., Sato, T., Ooizumi, M., Tsujimura, M. & Yokoyama, K., 2014 1 1, : : Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 61, SUPLL.1

研究成果: Article

Magnetic separation
Waste treatment
Nickel
Plating
Magnets
5 引用 (Scopus)

Magnetization behavior of RE123 bulk magnets bearing twin seed-crystals in pulsed field magnetization processes

Oka, T., Miyazaki, T., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Langer, M., 2015 12 17, : : Superconductor Science and Technology. 29, 2, 024003.

研究成果: Article

Bearings (structural)
Magnetic flux
Magnets
magnetic flux
Seed
2 引用 (Scopus)

Magnetizing of permanent magnets using HTS bulk magnets

Oka, T., Muraya, T., Kawasaki, N., Fukui, S., Ogawa, J., Sato, T. & Terasawa, T., 2012 1 1, : : Cryogenics. 52, 1, p. 27-31 5 p.

研究成果: Article

permanent magnets
Permanent magnets
Magnets
magnets
magnetic poles
Refrigerators
refrigerators
Magnets
magnets
Cooling
3 引用 (Scopus)

Measurement and numerical analysis of AC loss in high temperature superconducting coil

Fukui, S., Shibayama, M., Ogawa, J., Oka, T., Sato, T., Takao, T. & Tsukamoto, O., 2012 6 25, : : IEEE Transactions on Applied Superconductivity. 22, 3, 4704904.

研究成果: Article

numerical analysis
Numerical analysis
alternating current
coils
Tapes
5 引用 (Scopus)

Measurement and numerical analysis of dependence of ac loss in polygonal conductor assembled by YBCO tapes on gap length between neighboring tapes

Fukui, S., Hatakeyama, S., Nanayama, J., Maruko, A., Ogawa, J., Sato, T., Oka, T. & Tsukamoto, O., 2013 2 12, : : IEEE Transactions on Applied Superconductivity. 23, 3, 6407801.

研究成果: Article

Tapes
tapes
numerical analysis
Numerical analysis
conductors
21 引用 (Scopus)

Mechanical and superconducting properties of Ag/YBCO composite superconductors reinforced by the addition of Zr

Oka, T., Ogasawara, F., Itoh, Y., Suganuma, M. & Mizutani, U., 1990 1 1, : : Japanese Journal of Applied Physics. 29, 10, p. 1924-1931 8 p.

研究成果: Article

flexural strength
Bending strength
Superconducting materials
Bearings (structural)
mechanical properties
2 引用 (Scopus)

Mechanical properties of Zr-YBCO/Ag sintered superconducting composites

Oka, T., Itoh, Y., Yanagi, Y., Tanaka, H. & Mizutani, U., 1991 12 1, : : Physica C: Superconductivity and its Applications. 185-189, PART 1, p. 507-508 2 p.

研究成果: Article

Strength of materials
mechanical properties
Mechanical properties
composite materials
Composite materials
144 引用 (Scopus)

Melt-processed Sm-Ba-Cu-O superconductors trapping strong magnetic field

Ikuta, H., Mase, A., Yanagi, Y., Yoshikawa, M., Itoh, Y., Oka, T. & Mizutani, U., 1998 11 1, : : Superconductor Science and Technology. 11, 11, p. 1345-1347 3 p.

研究成果: Article

Superconducting materials
trapping
Magnetic fields
Oxygen
magnetic fields
15 引用 (Scopus)

Melt processing and the performance as a superconducting permanent magnet of RE-Ba-Cu-O/Ag (RE = Sm, Nd)

Ikuta, H., Yanagi, Y., Yoshikawa, M., Itoh, Y., Oka, T. & Mizutani, U., 2001 1 1, : : Physica C: Superconductivity and its Applications. 357-360, p. 837-842 6 p.

研究成果: Article

Superconducting magnets
superconducting magnets
permanent magnets
Permanent magnets
Superconducting materials
34 引用 (Scopus)

Melt-processing of Ag-added LRE-Ba-Cu-O (LRE = Nd, Sm)

Ikuta, H., Ikeda, S., Mase, A., Yoshikawa, M., Yanagi, Y., Itoh, Y., Oka, T. & Mizutani, U., 1998 1 1, : : Applied Superconductivity. 6, 2-5, p. 109-117 9 p.

研究成果: Article

Magnetic fields
Oxygen
Processing
trapped magnetic fields
atmospheres
5 引用 (Scopus)

Metallurgical Reactions and Their Relationships to Enhanced Mechanical Strength in Zr-Bearing YBCO Composite Superconductors

Oka, T., Itoh, Y., Yanagi, Y., Tanaka, H., Takashima, S. I. & Mizutani, U., 1992 1 1, : : Japanese Journal of Applied Physics. 31, 6 R, p. 1760-1764 5 p.

研究成果: Article

Bearings (structural)
Superconducting materials
Strength of materials
Melting
composite materials
1 引用 (Scopus)

Modeling of Magnetization Loss in HTS Tape Exposed to All Magnetic Field Directions

Ogawa, J., Fukui, S., Oka, T., Panpan, Y. & Kanamori, K., 2018 4 1, : : IEEE Transactions on Applied Superconductivity. 28, 3, 8239653.

研究成果: Article

Tapes
tapes
Magnetization
Magnetic fields
magnetization
8 引用 (Scopus)

New type superconducting bulk magnet by pulse field magnetizing with usable surface on both sides in open space

Fujishiro, H., Fujiwara, A., Tateiwa, T., Oka, T. & Hayashi, H., 2006 6 1, : : IEEE Transactions on Applied Superconductivity. 16, 2, p. 1080-1083 4 p., 1643036.

研究成果: Article

Magnets
magnets
coils
pulses
Solenoids
2 引用 (Scopus)
公開
Grain refinement
Rare earth elements
Infiltration
Superconducting materials
Tuning
19 引用 (Scopus)

Numerical analysis of AC loss characteristics of multi-layer HTS cable assembled by coated conductors

Fukui, S., Ogawa, J., Suzuki, N., Oka, T., Sato, T., Tsukamoto, O. & Takao, T., 2009 6 1, : : IEEE Transactions on Applied Superconductivity. 19, 3, p. 1714-1717 4 p., 4982598.

研究成果: Article

Tapes
cables
tapes
numerical analysis
Numerical analysis

Numerical analysis of AC transport current loss measurements using a pick-up loop

Ogawa, J., Fukui, S., Oka, T., Yamaguchi, M., Sato, T., Hamada, T. & Tanaka, H., 2008 6 1, : : IEEE Transactions on Applied Superconductivity. 18, 2, p. 1358-1361 4 p., 4515900.

研究成果: Article

Superconducting tapes
tapes
numerical analysis
Numerical analysis
alternating current
3 引用 (Scopus)
Superconducting magnets
superconducting magnets
numerical analysis
Numerical analysis
Magnetic fields
5 引用 (Scopus)
Tapes
tapes
numerical analysis
Numerical analysis
alternating current
15 引用 (Scopus)

Numerical evaluation of pulsed field magnetization of a bulk high Tc superconductor

Tsuchimoto, M., Waki, H., Itoh, Y., Yanagi, Y., Yoshikawa, M., Oka, T., Yamada, Y. & Mizutani, U., 1997 1 1, : : Cryogenics. 37, 1, p. 43-47 5 p.

研究成果: Article

heat generation
Heat generation
Superconducting materials
Magnetization
Shielding
12 引用 (Scopus)

Numerical study of optimization design of high temperature superconducting field winding in 20 MW synchronous motor for ship propulsion

Fukui, S., Kawai, T., Takahashi, M., Ogawa, J., Oka, T., Sato, T. & Tsukamoto, O., 2012 6 25, : : IEEE Transactions on Applied Superconductivity. 22, 3, 5200504.

研究成果: Article

Ship propulsion
synchronous motors
design optimization
Synchronous motors
ships
3 引用 (Scopus)

Numerical study of the influence of material properties on pulsed-field magnetization for hts bulk magnets

Ogawa, J., Oka, T., Fukui, S., Sato, T., Watanabe, N. & Basir, Z. M., 2014 1 1, : : IEEE Transactions on Applied Superconductivity. 24, 3, 6600815.

研究成果: Article

Magnets
Magnetization
Materials properties
magnets
magnetization
1 引用 (Scopus)

Numerical study on AC loss reduction of multi-pole HTS coil by optimal design of winding cross section of element coil

Fukui, S., Takahashi, M., Ogawa, J., Oka, T., Sato, T., Yamaguchi, M. & Takao, T., 2010 6 1, : : IEEE Transactions on Applied Superconductivity. 20, 3, p. 2150-2154 5 p., 5451072.

研究成果: Article

Poles
alternating current
poles
coils
cross sections
3 引用 (Scopus)

Oxygen diffusivity in melt-processed SmBCO and YBCO bulk-superconductors

Yamada, T., Ikuta, H., Yoshikawa, M., Yanagi, Y., Itoh, Y., Oka, T. & Mizutani, U., 2002 10 1, : : Physica C: Superconductivity and its Applications. 378-381, PART 1, p. 713-717 5 p.

研究成果: Article

Superconducting materials
diffusivity
Oxygen
oxygen
diffusion coefficient
13 引用 (Scopus)

Performance of trapped magnetic field in superconducting bulk magnets activated by pulsed field magnetization

Oka, T., Seki, H., Ogawa, J., Fukui, S., Sato, T. & Yokoyama, K., 2011 6 1, : : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3356-3359 4 p., 5658131.

研究成果: Article

trapped magnetic fields
Magnets
Magnetization
magnets
Magnetic fields
10 引用 (Scopus)

Performances of compact magnetic field generators using cryo-cooled high temperature bulk superconductors as quasi-permanent magnets

Oka, T., Hirose, Y., Kanayama, H., Kikuchi, H., Fukui, S., Ogawa, J., Sato, T. & Yamaguchi, M., 2007 12 1, : : Superconductor Science and Technology. 20, 12, p. 1233-1238 6 p.

研究成果: Article

permanent magnets
Permanent magnets
Superconducting materials
Magnets
magnets
3 引用 (Scopus)

Preferential magnetic flux invasion and heat generation owing to macrostructure in HTS bulk magnets in pulse field magnetization processes

Oka, T., Ota, H., Shimoda, T., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K., Murakami, A. & Langer, M., 2015 6 1, : : IEEE Transactions on Applied Superconductivity. 25, 3, 6980106.

研究成果: Article

heat generation
Heat generation
Magnetic flux
Magnets
magnetic flux
30 引用 (Scopus)

Preparation of melt-textured NdBa2Cu3Oy bulk with Nd4Ba2Cu2O10 addition

Takagi, A., Yamazaki, T., Oka, T., Yanagi, Y., Itoh, Y., Yoshikawa, M., Yamada, Y. & Mizutani, U., 1995 8 15, : : Physica C: Superconductivity and its Applications. 250, 3-4, p. 222-226 5 p.

研究成果: Article

Superconducting materials
Single crystals
preparation
Superconducting transition temperature
atmospheres
33 引用 (Scopus)

Present status of R & D on superconducting magnetic bearing technologies for flywheel energy storage system

Koshizuka, N., Ishikawa, F., Nasu, H., Murakami, M., Matsunaga, K., Saito, S., Saito, O., Nakamura, Y., Yamamoto, H., Takahata, R., Oka, T., Ikezawa, H. & Tomita, M., 2002 10 1, : : Physica C: Superconductivity and its Applications. 378-381, PART 1, p. 11-17 7 p.

研究成果: Article

flywheels
magnetic bearings
Magnetic bearings
Flywheels
energy storage
34 引用 (Scopus)

Processing and applications of bulk HTSC

Oka, T., 2007 10 1, : : Physica C: Superconductivity and its Applications. 463-465, SUPPL., p. 7-13 7 p.

研究成果: Article

high temperature superconductors
Nuclear magnetic resonance
Magnetic separation
nuclear magnetic resonance
Refrigerators
1 引用 (Scopus)

Prototype of SC inverter

Osamura, K., Sakai, A., Nakamura, T., Oka, T., Fukuda, S. & Yamaguchi, S., 2011 6 1, : : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1445-1448 4 p., 5675739.

研究成果: Article

prototypes
alternating current
Io
Critical currents
critical current