岡 徹雄

  • 1865 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

2019
trapped magnetic fields
Refrigerators
refrigerators
Magnetic flux
Magnets

Infiltration growth processing of bulk mixed REBa 2 Cu 3 O 7-x superconductors: Nano-metal oxides and rare earth elements effects on micro-structural properties

Pavan Kumar Naik, S., Nagaveni, K., Swarup Raju, P. M., Miryala, M., Koblischka, M. R., Koblischka-Veneva, A. D., Oka, T., Iwasa, Y., Ogino, H., Eisaki, H. & Murakami, M., 2019 1 1, Superconductivity and Particle Accelerators 2018. Bocian, D. & Romaniuk, R. S. (版). SPIE, 110540H. (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 11054).

研究成果: Conference contribution

infiltration
Rare earth elements
Infiltration
Oxides
Superconducting materials

International individual internship based on research collaboration on engineering education and academic science

Oka, T., Murakami, M., Sengoku, M., Sato, T., Ogawa, J., Yamagiwa, K., Suzuki, T., Nishimura, S. Y. & Kaneko, F., 2019 1 29, 2018 World Engineering Education Forum - Global Engineering Deans Council, WEEF-GEDC 2018. Institute of Electrical and Electronics Engineers Inc., 8629681. (2018 World Engineering Education Forum - Global Engineering Deans Council, WEEF-GEDC 2018).

研究成果: Conference contribution

internship
Engineering education
Students
engineering
science
1 引用 (Scopus)
公開
Grain refinement
Rare earth elements
Infiltration
Superconducting materials
Tuning

Study on Magnetic Flux Dissipation and Field-Trapping Performance of HTS Bulk-Shaped Magnesium Diboride in Pulse-Field Magnetizing Processes

Oka, T., Takeda, A., Oki, H., Ogawa, J., Fukui, S., Scheiter, J., Häßler, W., Yokoyama, K., Yamanaka, K., Dadiel, L., Miryala, M., Sakai, N., Murakami, M. & Noudem, J., 2019 8 1, : : IEEE Transactions on Applied Superconductivity. 29, 5, 8678817.

研究成果: Article

Magnetic flux
Magnesium
magnetic flux
magnesium
dissipation
2018
1 引用 (Scopus)

AC loss distribution in two-layer HTS cable

Ogawa, J., Fukui, S., Oka, T., Ogawa, T. & Sugai, M., 2018 4 1, : : IEEE Transactions on Applied Superconductivity. 28, 3, 5900104.

研究成果: Article

Superconducting cables
cables
alternating current
Magnetic fields
Temperature

A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications

Oka, T., Ogawa, J., Fukui, S., Sato, T., Nakano, T., Yokoyama, K., Nakamura, T., Fujishiro, H. & Noto, K., 2018 1 1, High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc., p. 291-306 16 p.

研究成果: Chapter

Refrigerators
Magnets
Magnetic fields
Poles
Electromagnets

Collecting Ni-Sulfate Compound from Electroless Plating Waste by Magnetic Separation Technique with Use of HTS Bulk Magnets

Oka, T., Sasaki, S., Sasaki, H., Fukui, S., Ogawa, J., Sato, T., Nakano, T., Ooizumi, M., Tsujimura, M. & Yokoyama, K., 2018 7 26, : : Journal of Physics: Conference Series. 1054, 1, 012047.

研究成果: Conference article

plating
sulfates
magnets
fluids
crystals
1 引用 (Scopus)
Refrigerators
refrigerators
Magnets
Magnetization
magnets

Comparison of Trapped Field Characteristic of Bulk Magnet System Using Various Type Refrigerators

Yokoyama, K., Katsuki, A., Miura, A. & Oka, T., 2018 7 26, : : Journal of Physics: Conference Series. 1054, 1, 012072.

研究成果: Conference article

refrigerators
magnets
cooling
trapped magnetic fields
magnetic fields

Development of Engineering Education Program for Students before Starting Graduation Researches on Forefront Technologies

Oka, T., Suzuki, T., Abe, K., Yamauchi, T., Yamagiwa, K., Sato, T., Tanabe, Y. & Narumi, T., 2018 9 17, Proceedings - 2017 7th World Engineering Education Forum, WEEF 2017- In Conjunction with: 7th Regional Conference on Engineering Education and Research in Higher Education 2017, RCEE and RHEd 2017, 1st International STEAM Education Conference, STEAMEC 2017 and 4th Innovative Practices in Higher Education Expo 2017, I-PHEX 2017. Institute of Electrical and Electronics Engineers Inc., p. 136-139 4 p. 8467132

研究成果: Conference contribution

Engineering education
Students
engineering
education
student
1 引用 (Scopus)
trapped magnetic fields
Magnets
magnetic flux
magnets
Magnetic fields

Feasible Applications of Bulk HTS Magnets and Magnetic Field-Capturing Characteristics in Their Activation Processes

Oka, T., Takeda, A., Shimizu, K., Higa, K., Tsunoda, S., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Nakamura, T., 2018 8 28, (Accepted/In press) : : IEEE Transactions on Applied Superconductivity.

研究成果: Article

Magnets
magnets
Chemical activation
activation
Magnetic fields

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
Refrigerators
refrigerators
Magnets
magnets
Cooling
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

Strong magnetic field generation by superconducting bulk magnets using various types of refrigerators and considering an efficient magnetization

Yokoyama, K. & Oka, T., 2018 1 1, High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc., p. 369-385 17 p.

研究成果: Chapter

Refrigerators
Magnets
Magnetization
Magnetic fields
Magnetic flux
2017
4 引用 (Scopus)

Experimental and theoretical study of AC losses in variable asymmetrical magnetic environments

Ranecky, S. T., Watanabe, H., Ogawa, J., Oka, T., Gölden, D., Alff, L. & Genenko, Y. A., 2017 7 6, : : Superconductor Science and Technology. 30, 8, 085005.

研究成果: Article

Tapes
tapes
alternating current
Shielding
shielding
2 引用 (Scopus)

Experimental investigation of AC loss characteristics in HTS tape with rotating magnetic field

Ogawa, J., Fukui, S., Oka, T., Sano, Y., Ogawa, M. & Ranecky, S. T., 2017 6 1, : : IEEE Transactions on Applied Superconductivity. 27, 4, 7812682.

研究成果: Article

Superconducting tapes
tapes
alternating current
Magnetic fields
magnetic fields
1 引用 (Scopus)

Influence of Artificial Defects on Trapped Field Performance in a Superconducting Bulk Magnet

Yokoyama, K., Eranda, K., Zhao, Y., Katsuki, A., Miura, A. & Oka, T., 2017 7 26, : : Journal of Physics: Conference Series. 871, 1, 012050.

研究成果: Conference article

magnets
sectors
defects
magnetic flux
trapped magnetic fields

Magnetic flux invasion in REBCO bulk magnets with varying pre-magnetized flux distributions in multiple-PFM processes

Oka, T., Hara, K., Takeda, A., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Murakami, A., 2017 7 26, : : Journal of Physics: Conference Series. 871, 1, 012049.

研究成果: Conference article

pulse frequency modulation
magnetic flux
magnets
heat generation
promotion
1 引用 (Scopus)

Magnetic Separation Using HTS Bulk Magnet for Cs-Bearing Fe precipitates

Oka, T., Ichiju, K., Sasaki, S., Ogawa, J., Fukui, S., Sato, T., Ooizumi, M., Yokoyama, K., Aoki, S. & Ohnishi, N., 2017 9 21, : : Journal of Physics: Conference Series. 897, 1, 012024.

研究成果: Conference article

precipitates
magnets
incinerators
ashes
magnetic fields
2 引用 (Scopus)

Pulse-Field Magnetization for Disc-Shaped MgB2 Bulk Magnets

Miyazaki, T., Fukui, S., Ogawa, J., Sato, T., Oka, T., Scheiter, J., Hasler, W., Kulawansha, E., Yuanding, Z. & Yokoyama, K., 2017 6 1, : : IEEE Transactions on Applied Superconductivity. 27, 4, 7782353.

研究成果: Article

Magnets
Magnetization
magnets
magnetization
heat generation
2016
7 引用 (Scopus)

Development of a Desktop-Type Superconducting Bulk Magnet

Yokoyama, K., Kulawansha, E., Yuanding, Z. & Oka, T., 2016 6 1, : : IEEE Transactions on Applied Superconductivity. 26, 4, 7386635.

研究成果: Article

Refrigerators
refrigerators
Magnets
Magnetization
magnets
7 引用 (Scopus)

Experimental Investigation of AC Loss Characteristics of Stacked HTS Tapes in an Iron Core

Ogawa, J., Fukui, S., Oka, T., Sakurai, T., Sano, Y., Tada, H. & Yoshii, Y., 2016 6 1, : : IEEE Transactions on Applied Superconductivity. 26, 4, 7435291.

研究成果: Article

Tapes
tapes
alternating current
Iron
iron
3 引用 (Scopus)
Magnets
magnets
sectors
Magnetic flux
magnetic flux

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
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
3 引用 (Scopus)

Selective Magnetic Field Invasion into HTS Bulk Magnets in Pulse Field Magnetizing Processes

Oka, T., Hara, K., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K., Murakami, A. & Langer, M., 2016 4 1, : : IEEE Transactions on Applied Superconductivity. 26, 3, 7405303.

研究成果: Article

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

Uniform Magnetic Field between Face-to-Face HTS Bulk Magnets Combining Concave and Convex Magnetic Field Distributions

Oka, T., Takahashi, Y., Yaginuma, S., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Nakamura, T., 2016 1 1, : : Physics Procedia. 81, p. 45-48 4 p.

研究成果: Conference article

magnets
magnetic fields
poles
magnetic poles
nonuniform magnetic fields
2015

A Numerical Proposal of an After Heating Method for Pulse Field Magnetization for HTS Bulk Magnets

Ogawa, J., Oka, T., Fukui, S., Sato, T. & Watanabe, N., 2015 6 1, : : IEEE Transactions on Applied Superconductivity. 25, 3, 6945334.

研究成果: Article

Magnets
proposals
Magnetization
magnets
Magnetic fields
2 引用 (Scopus)

Attempt to generate a strong and uniform magnetic field by face-to-face HTS bulk elements in a magnet system

Oka, T., Hirayama, E., Takahashi, Y., Kanai, T., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Nakamura, T., 2015 1 1, : : Physics Procedia. 67, p. 1005-1009 5 p.

研究成果: Conference article

magnets
magnetic poles
magnetic fields
iron
nuclear magnetic resonance

Educational programs for freshmen based on forefront scientific researches on the environmental purification project with intense magnetic fields

Oka, T., Yamauchi, T., Abe, K., Narumi, T. & Tanabe, Y., 2015 1 1, Proceedings of 2014 International Conference on Interactive Collaborative Learning, ICL 2014. Institute of Electrical and Electronics Engineers Inc., p. 1068-1072 5 p. 7017931

研究成果: Conference contribution

educational program
Purification
Students
Magnetic fields
university
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
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
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
2 引用 (Scopus)

Pulsed field magnetization characteristics of a holed superconducting bulk magnet

Yokoyama, K., Igarashi, R., Togasaki, R. & Oka, T., 2015 6 25, : : Physica C: Superconductivity and its Applications. 518, p. 117-121 5 p.

研究成果: Article

Magnets
Magnetization
magnets
magnetization
Magnetic fields

Roles and effects of human network of supporting experts out of Niigata University to practical engineering education

Oka, T., Abe, K., Yamauchi, T., Narumi, T., Ishii, N., Nishimura, S., Sato, T., Tanabe, Y. & Sengoku, M., 2015 11 4, Proceedings of 2015 International Conference on Interactive Collaborative Learning, ICL 2015. Institute of Electrical and Electronics Engineers Inc., p. 150-154 5 p. 7318017

研究成果: Conference contribution

Engineering education
expert
engineering
education
Students
2014
11 引用 (Scopus)

Collection of Ni-bearing material from electroless plating waste by magnetic separation with HTS bulk magnet

Oka, T., Fukazawa, H., Fukui, S., Ogawa, J., Sato, T., Ooizumi, M., Tsujimura, M. & Yokoyama, K., 2014 1 15, : : Physica C: Superconductivity and its Applications. 496, C, p. 58-62 5 p.

研究成果: Article

Bearings (structural)
Magnetic separation
Electroless plating
plating
Sulfates
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
4 引用 (Scopus)

Magnetic flux-trapping of anisotropic-grown Y-Ba-Cu-O bulk superconductors during and after pulsed-field magnetizing processes

Oka, T., Yamada, Y., Horiuchi, T., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Langer, M., 2014 1 1, : : Journal of Physics: Conference Series. 507, PART 1, 012039.

研究成果: Conference article

magnetic flux
seeds
trapping
magnets
penetration

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
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
18 引用 (Scopus)

Strong magnetic field generator containing HTS bulk magnets and compact refrigerators

Oka, T., Hirayama, E., Kanai, T., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K. & Nakamura, T., 2014 1 1, : : IEEE Transactions on Applied Superconductivity. 24, 3, 6626624.

研究成果: Article

Refrigerators
refrigerators
Magnetic flux
Magnets
magnets
2013
2 引用 (Scopus)
magnetic bearings
Magnetic bearings
spinners
central processing units
Masks
3 引用 (Scopus)

Evaluation of pulsed-field magnetization of a bulk superconductor with small holes

Yokoyama, K., Oka, T., Kondo, N. & Hosaka, S., 2013 2 11, : : IEEE Transactions on Applied Superconductivity. 23, 3, 6403884.

研究成果: Article

Superconducting materials
Magnetization
magnetization
evaluation
Magnetic flux
3 引用 (Scopus)
magnetic flux
magnets
penetration
current density
retarding
5 引用 (Scopus)

Flux-invading behaviors and temperature changes in Dy123 bulk magnet in iterative pulse field magnetization process

Oka, T., Ishiduka, D., Ogawa, J., Fukui, S., Sato, T., Yokoyama, K., Murakami, A. & Stopfel, H., 2013 5 6, : : Physica C: Superconductivity and its Applications. 494, p. 46-49 4 p.

研究成果: Article

Magnetic flux
Magnets
Magnetization
magnets
Fluxes