電気システム工学部門

研究成果 1979 2019

1992
3 引用 (Scopus)

Dependence of magnetic field penetration depth on resistivity and critical temperature in c-Axis-oriented YBaCuO thin films

Kiss, T., Iinuma, T., Enpuku, K., Yoshida, K. & Takeo, M., 1 1 1992, : : Japanese Journal of Applied Physics. 31, 8, p. L1027-L1030

研究成果: ジャーナルへの寄稿記事

critical temperature
penetration
Magnetic fields
Thin films
electrical resistivity
12 引用 (Scopus)

Development of a Large-Capacity Superconducting Cable for 1000 KV A-Class Power Transformers

Funaki, K., Iwakuma, M., Satoh, S., Hiramatsu, M., Takeo, M., Yamafuji, K., Nonaka, S., Hoshino, M., Simada, M., Yoneda, E. S., Sasaki, T., Fujioka, T., Kumano, T. & Suzuki, E., 1 1 1992, : : IEEE Transactions on Magnetics. 28, 1, p. 394-397 4 p.

研究成果: ジャーナルへの寄稿記事

Superconducting cables
Power transformers
Cables
Critical currents
Copper
6 引用 (Scopus)

Enlargement of Kinetic Inductance of NbN Superconducting Thin Films for Device Applications

Hossain, M. S., Yoshida, K., Kudo, K., Enpuku, K. & Yamafuji, K., 1 1 1992, : : Japanese Journal of Applied Physics. 31, 4 R, p. 1033-1038 6 p.

研究成果: ジャーナルへの寄稿記事

Superconducting films
inductance
Inductance
Kinetics
Film thickness
11 引用 (Scopus)

Flux-pinning characteristics of Nb artificial pins with ribbon-shape in Nb-46.5 wt.% Ti superconductors

Matsumoto, K., Tanaka, Y., Yamafuji, K., Funaki, K., Iwakuma, M. & Matsushita, T., 12 1 1992, : : Superconductor Science and Technology. 5, 11, p. 684-689 6 p., 016.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
Flux pinning
flux pinning
ribbons
Superconducting materials
8 引用 (Scopus)

Losses of Aluminum-Stabilized Superconducting Conductors for Large Helical Device

Sumiyoshi, F., Kanai, Y., Kawashima, T., Iwakuma, M., Mito, T., Takahata, K., Yanagi, N. & Yamamoto, J., 1 1 1992, : : IEEE Transactions on Magnetics. 28, 1, p. 210-213 4 p.

研究成果: ジャーナルへの寄稿記事

Aluminum
Superconducting magnets
Skin
Metals
Experiments
34 引用 (Scopus)

Modeling of kinetic-inductance coplanar stripline with nbn thin films

Yoshida, K., Hossain, M. S., Kiss, T., Enpuku, K. & Yamafuji, K., 1 1 1992, : : Japanese Journal of Applied Physics. 31, 12 R, p. 3844-3850 7 p.

研究成果: ジャーナルへの寄稿記事

inductance
Inductance
Thin films
Kinetics
kinetics
16 引用 (Scopus)

Pinning characteristics in multifilamentary NbTi superconducting wires with submicrometre filaments introduced artificial pinning centres

Miura, O., Matsumoto, K., Tanaka, Y., Yamafuji, K., Harada, N., Iwakuma, M., Funaki, K. & Matsushita, T., 1 1 1992, : : Cryogenics. 32, 3, p. 315-322 8 p.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
filaments
wire
Wire
Magnetic fields
8 引用 (Scopus)

Zero-voltage-switching realized by magnetizing current of transformer in push-pull DC-DC converter

Shoyama, M. & Harada, K., 1 1992, INTELEC, International Telecommunications Energy Conference (Proceedings). Publ by IEEE, p. 640-647 8 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Zero voltage switching
DC-DC converters
Electric potential
Networks (circuits)
Electric commutation
1993
9 引用 (Scopus)

Additional A.C. Losses Due to Alternating Magnetic Field Component Longitudinal to Strand Axis in the Armature Winding of Fully Superconducting Generators

Funaki, K., Kanetaka, H., Ueda, H., Yoshiya, F., Iwakuma, M., Takeo, M. & Yamafuji, K., 1 1 1993, : : IEEE Transactions on Applied Superconductivity. 3, 1, p. 122-125 4 p.

研究成果: ジャーナルへの寄稿レター

armatures
strands
cables
alternating current
generators
113 引用 (Scopus)

Effect of thermal noise on the characteristics of a high Tc superconducting quantum interference device

Enpuku, K., Shimomura, Y. & Kiss, T., 12 1 1993, : : Journal of Applied Physics. 73, 11, p. 7929-7934 6 p.

研究成果: ジャーナルへの寄稿記事

thermal noise
inductance
interference
degradation
transfer functions
17 引用 (Scopus)

Effects of Artificial Pins on the Flux Pinning Force and Other Superconducting Properties in NbTi Superconductors

Matsumoto, K., Tanaka, Y., Yamafuji, K., Funaki, K., Iwakuma, M. & Matsushita, T., 1 1 1993, : : IEEE Transactions on Applied Superconductivity. 3, 1, p. 1362-1365 4 p.

研究成果: ジャーナルへの寄稿コメント/討論

Flux pinning
flux pinning
ribbons
Superconducting materials
augmentation
5 引用 (Scopus)

Levitation pressure and stiffness of a high Tc superconducting bearing in field-cooling process

Komori, M., Iwakuma, M., Kitamura, T., Matsushita, T. & Takeo, M., 12 1 1993, : : Journal of Applied Physics. 73, 5, p. 2535-2539 5 p.

研究成果: ジャーナルへの寄稿記事

levitation
stiffness
cooling
liquid nitrogen
polarity

Liquid helium breakdown in the μs range

Suehiro, J., Yamasaki, K., Hara, M. & Gerhold, J., 12 1 1993, Proceedings of the 11th International Conference on Conduction and. Publ by IEEE, p. 400-404 5 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Helium
Liquids
Electric potential
Superconducting devices
Pulse generators
15 引用 (Scopus)

Magnetic Penetration Depth and Critical Current in YBaCuO Thinfilms

Kiss, T., Iinuma, T., Enpuku, K., Yoshida, K., Yamafuji, K. & Takeo, M., 1 1 1993, : : IEEE Transactions on Applied Superconductivity. 3, 1, p. 2961-2964 4 p.

研究成果: ジャーナルへの寄稿レター

Penetration depth (superconductivity)
BCS theory
Critical currents
critical current
Inductance measurement
1 引用 (Scopus)

Microwave Filter Application of Inductively Coupled Superconducting Striplines

Yoshida, K., Kudo, K., Hossain, M. S., Watanabe, K., Enpuku, K. & Yamafuji, K., 1 1 1993, : : IEEE Transactions on Applied Superconductivity. 3, 1, p. 2788-2791 4 p.

研究成果: ジャーナルへの寄稿レター

microwave filters
Microwave filters
Bandpass filters
Modulation
S matrix theory
10 引用 (Scopus)

Modulation of kinetic inductance of high ic superconducting thin films with bias current

Enpuku, K., Hoashi, M., Doi, H. & Kiss, T., 1 1 1993, : : Japanese Journal of Applied Physics. 32, 9 R, p. 3804-3810 7 p.

研究成果: ジャーナルへの寄稿記事

Superconducting films
Bias currents
inductance
Inductance
Modulation
2 引用 (Scopus)

Resonant Properties of a DC Squid Coupled to a Multiturn Input Coil

Enpuku, K., Cantor, R. & Koch, H., 1 1 1993, : : IEEE Transactions on Applied Superconductivity. 3, 1, p. 1858-1861 4 p.

研究成果: ジャーナルへの寄稿レター

SQUIDs
coils
direct current
resistors
washers
9 引用 (Scopus)

Sweep-rate dependences of losses in aluminum-stabilized superconducting conductors for the Large Helical Device

Sumiyoshi, F., Kanai, Y., Kawashima, T., Iwakuma, M., Mito, T., Takahata, K., Yanagi, N. & Yamamoto, J., 1 1 1993, : : Fusion Engineering and Design. 20, C, p. 371-376 6 p.

研究成果: ジャーナルへの寄稿記事

Aluminum
Skin
Metals
Experiments
1 引用 (Scopus)

The development of a 2.5 T/100 kV a AC superconducting magnet using a high-J c NbTi superconducting wire having Nb artificial pins

Miura, O., Inoue, I., Suzuki, T., Matsumoto, K., Tanaka, Y., Funaki, K., Iwakuma, M., Yamafuji, K. & Matsushita, T., 12 1 1993, : : Superconductor Science and Technology. 6, 10, p. 748-754 7 p., 008.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
Superconducting magnets
superconducting magnets
Magnets
alternating current
12 引用 (Scopus)

Theoretical evaluation of longitudinal a.c. losses in large-capacity superconducting cables for 50 60 Hz use

Funaki, K., Ueda, H., Yoshlya, F., Iwakuma, M., Takeo, M. & Yamafuji, K., 1 1 1993, : : Cryogenics. 33, 2, p. 190-198 9 p.

研究成果: ジャーナルへの寄稿記事

Superconducting cables
strands
cables
Cables
Hysteresis

Verification of the model of inductive coupling between a josephson oscillator and a stripline

Kudo, K., Yoshida, K., Enpuku, K. & Yamafuji, K., 1 1 1993, : : Japanese Journal of Applied Physics. 32, 1 R, p. 60-64 5 p.

研究成果: ジャーナルへの寄稿記事

oscillators
Fluxes
Equivalent circuits
Resonators
Mathematical models
11 引用 (Scopus)

Voltage versus flux relation of high tc dc superconducting quantum interference device with different inductances

Enpuku, K., 1993, : : Japanese Journal of Applied Physics. 32, 10 A, p. 1407-1409 3 p.

研究成果: ジャーナルへの寄稿記事

SQUIDs
inductance
Inductance
Fluxes
interference
6 引用 (Scopus)

Washer resonances of dc superconducting quantum interference device coupled to multiturn input coil

Enpuku, K. & Koch, H., 1 1 1993, : : Japanese Journal of Applied Physics. 32, 9 R, p. 3811-3816 6 p.

研究成果: ジャーナルへの寄稿記事

washers
Washers
SQUIDs
coils
interference
9 引用 (Scopus)

Zero-voltage-switching realized by magnetizing current of transformer in push-pull current-fed DC-DC converter

Shoyama, M. & Harada, K., 1993, : : Unknown Journal. p. 178-184 7 p.

研究成果: ジャーナルへの寄稿記事

Zero voltage switching
DC-DC converters
Electric potential
Networks (circuits)
Electric commutation
1994
29 引用 (Scopus)

Dynamic analysis of parallel-module converter system with current balance controllers

Kohama, T., Ninomiya, T., Shoyama, M. & Ihara, F., 1994, : : Unknown Journal. p. 190-195 6 p.

研究成果: ジャーナルへの寄稿記事

dynamic analysis
Dynamic analysis
Controllers
dynamic response
State space methods
35 引用 (Scopus)

Enhanced J c properties in superconducting NbTi composites by introducing Nb artificial pins with a layered structure

Matsumoto, K., Takewaki, H., Tanaka, Y., Miura, O., Yamafuji, K., Funaki, K., Iwakuma, M. & Matsushita, T., 12 1 1994, : : Applied Physics Letters. 64, 1, p. 115-117 3 p.

研究成果: ジャーナルへの寄稿記事

composite materials
ribbons
critical current
current density
cross sections
8 引用 (Scopus)

Frequency dependences of Ac losses in (Bi1-xPbx)2Sr2Ca2Cu3Oy bulk superconductors in Ac magnetic field

Iwakuma, M., Konomi, H., Funaki, K., Takeo, M., Kuroda, K., Tanaka, Y., Mimura, M., Takita, K., Hiue, H. & Yamafuji, K., 1 1 1994, : : Cryogenics. 34, SUPPL. 1, p. 793-796 4 p.

研究成果: ジャーナルへの寄稿記事

Superconducting materials
Magnetic fields
Maxwell equations
Current voltage characteristics
magnetic fields
17 引用 (Scopus)

Inductance dependence of noise properties of a high-Tc dc superconducting quantum interference device

Enpuku, K., Tokita, G. & Maruo, T., 12 1 1994, : : Journal of Applied Physics. 76, 12, p. 8180-8185 6 p.

研究成果: ジャーナルへの寄稿記事

inductance
interference
transfer functions
simulation
thermal noise
12 引用 (Scopus)

Modulation voltage of high tc DC superconducting quantum interference device with damping resistance

Enpuku, K., Doi, H., Tokita, G. & Maruo, T., 1994, : : Japanese Journal of Applied Physics. 33, 5, p. L722-L725

研究成果: ジャーナルへの寄稿記事

SQUIDs
Damping
damping
direct current
Modulation
6 引用 (Scopus)

Pulsed electrical breakdown in liquid helium in the μs range

Suehiro, J., Yamasaki, K., Matsuo, H., Hara, M. & Gerhold, J., 1 1 1994, : : IEEE Transactions on Dielectrics and Electrical Insulation. 1, 3, p. 403-406 4 p.

研究成果: ジャーナルへの寄稿記事

Helium
Liquids
Electric potential
Superconducting devices
Pulse generators
Lipid bilayers
quantitative analysis
lipid
membrane
Electric potential

Suppression of washer resonance of dc superconducting quantum interference device by using new washer with additional slit

Shimizu, N., Morooka, T. & Enpuku, K., 1 1 1994, : : Japanese Journal of Applied Physics. 33, 9, p. L1215-L1217

研究成果: ジャーナルへの寄稿記事

washers
Washers
SQUIDs
slits
retarding

System identification using neural network with parametric sigmoid function

Hasheminejad, M., Murata, J. & Hirasawa, K., 1994, : : Artificial Neural Networks in Engineering - Proceedings (ANNIE'94). 4, p. 39-44 6 p.

研究成果: ジャーナルへの寄稿記事

Identification (control systems)
Neural networks
Network architecture
Nonlinear systems
Chemical activation
12 引用 (Scopus)

Voltage versus flux relation of dc superconducting quantum interference device using three josephson junctions

Enpuku, K. & Doi, H., 1994, : : Japanese Journal of Applied Physics. 33, 4R, p. 1856-1862 7 p.

研究成果: ジャーナルへの寄稿記事

SQUIDs
inductance
Inductance
Josephson junctions
Fluxes
21 引用 (Scopus)

Zero-voltage-switching techniques and their application to high-frequency converter with piezoelectric transformer

Ninomiya, T., Shoyama, M., Zaitsu, T. & Inoue, T., 1994, IECON Proceedings (Industrial Electronics Conference). IEEE, 巻 3. p. 1665-1669 5 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Zero voltage switching
Frequency converters
Topology
Switching frequency
Electric potential
1995
16 引用 (Scopus)

Analysis of ripple current of an electrolytic capacitor in power factor controller

Kurachi, T., Shoyama, M. & Ninomiya, T., 1995, Proceedings of the International Conference on Power Electronics and Drive Systems. IEEE, 巻 1. p. 48-53 6 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Electrolytic capacitors
Capacitors
Controllers
Networks (circuits)
Electric potential
5 引用 (Scopus)

Chaos control using second order derivatives of universal learning network

Koga, M., Hirasawa, K., Murata, J. & Ohbayashi, M., 1995, IEEE International Conference on Neural Networks - Conference Proceedings. IEEE, 巻 3. p. 1287-1292 6 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Chaos theory
Derivatives
Gradient methods
6 引用 (Scopus)

Characteristics of a parallel-module high power-factor AC-to-DC converter system with current-balancing controllers

Kohama, T., Ninomiya, T. & Shoyama, M., 1995, : : Unknown Journal. p. 791-795 5 p.

研究成果: ジャーナルへの寄稿記事

Controllers
Transient analysis
experiment
Experiments
1 引用 (Scopus)

Controller design using parametric neural networks

HashemiNejad, M., Murata, J. & Hirasawa, K., 1995, Proceedings of the SICE Annual Conference. Society of Instrument and Control Engineers (SICE), p. 1275-1280 6 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Neural networks
Controllers
4 引用 (Scopus)

Current-dependent kinetic inductance of superconducting YBaCuO thin films

Enpuku, K., Moritaka, H., Inokuchi, H., Kiss, T. & Takeo, M., 6 1 1995, : : Japanese Journal of Applied Physics. 34, 6, p. L675-L678

研究成果: ジャーナルへの寄稿記事

Superconducting films
inductance
Inductance
Kinetics
kinetics
7 引用 (Scopus)

Development of high-field a.c. superconducting magnet using ultrafine multifilamentary Nb-Ti superconducting wire with designed Nb artificial pins

Miura, O., Inoue, I., Suzuki, T., Matsumoto, K., Tanaka, Y., Funaki, K., Iwakuma, M., Yamafuji, K. & Matsushita, T., 1 1 1995, : : Cryogenics. 35, 3, p. 181-188 8 p.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
high field magnets
Superconducting magnets
superconducting magnets
Magnets
9 引用 (Scopus)

Development of high J c Nb-Ti multifilamentary superconducting wires for a.c. use by artificially introduced pins

Miura, O., lnoue, I., Suzuki, T., Matsumoto, K., Tanaka, Y., Funaki, K., Iwakuma, M., Yamafuji, K. & Matsushita, T., 1 1 1995, : : Cryogenics. 35, 3, p. 169-180 12 p.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
filaments
wire
Magnetic fields
Flux pinning
8 引用 (Scopus)

Effect of cumulative ablation on the ejection of particulates and molecular species from YBa2Cu3O7-x targets

Kumuduni, W. K. A., Nakata, Y., Sasaki, Y., Okada, T., Maeda, M., Kiss, T., Takeo, M. & Enpuku, K., 12 1 1995, : : Journal of Applied Physics. 77, 11, p. 5961-5967 7 p.

研究成果: ジャーナルへの寄稿記事

ejection
particulates
ablation
shot
Mie scattering
3 引用 (Scopus)

Experimental Evaluation of AC Losses in Superconducting Multifilamentary Wires for 50/60 Hz Use Exposed to a Magnetic Field with Arbitrary Angle with the Wire Axis

Kanetaka, H., Ueda, H., Eguchi, Y., Iwakuma, M., Funaki, K., Takeo, M., Yamafuji, K., Kumano, T., Ichihara, M. & Miyake, S., 1 1 1995, : : IEEE Transactions on Applied Superconductivity. 5, 2, p. 737-740 4 p.

研究成果: ジャーナルへの寄稿記事

Superconducting wire
alternating current
wire
Wire
Magnetic fields
2 引用 (Scopus)

Experimental evaluation of longitudinal field loss in multiply-twisted superconducting cables for a.c. use

Kanetaka, H., Ueda, H., Eguchi, Y., Iwakuma, M., Funaki, K., Takeo, M., Yamafuji, K., Miyake, S., Kumano, T. & Ichihara, M., 1 1 1995, : : Cryogenics. 35, 5, p. 327-333 7 p.

研究成果: ジャーナルへの寄稿記事

Superconducting cables
cables
strands
evaluation
Magnetic fields
12 引用 (Scopus)

Flux Creep Characteristics in the Presence of a Pinning Distribution for Y1Ba2Cu2O7_δ Superconducting Thin Films

Kiss, T., Nakamura, T., Takeo, M., Kuroda, K., Matsumoto, Y. & Irie, F., 1 1 1995, : : IEEE Transactions on Applied Superconductivity. 5, 2, p. 1363-1366 4 p.

研究成果: ジャーナルへの寄稿記事

Superconducting films
Creep
Fluxes
thin films
Electric fields
7 引用 (Scopus)

Learning Petri network with route control

Hirasawa, K., Oka, S., Sakai, S., Obayashi, M. & Murata, J., 1995, : : Unknown Journal. 3, p. 2076-2711 636 p.

研究成果: ジャーナルへの寄稿記事

brain
Brain
learning
Petri nets
Distribution functions
1 引用 (Scopus)

Likelihood based search method (L.S.M.)

Koga, M., Hirasawa, K., Murata, J. & Ohbayashi, M., 9 1995, : : Memoirs of the Faculty of Engineering, Kyushu University. 55, 3, p. 235-256 22 p.

研究成果: ジャーナルへの寄稿記事

method
speed
Convergence speed
Optimization problem
Exploitation
5 引用 (Scopus)

Method for Improving Voltage Modulation Depth of High Tc dc SQUID with Large Inductance

Enpuku, K., Doi, H., Tokita, G. & Maruo, T., 1995, : : IEEE Transactions on Applied Superconductivity. 5, 2, p. 2762-2765 4 p.

研究成果: ジャーナルへの寄稿記事

SQUIDs
inductance
Inductance
Modulation
modulation
2 引用 (Scopus)

One‐day‐ through seven‐day‐ahead electrical load forecasting in consideration of uncertainties of weather information

Miyake, T., Murata, J. & Hirasawa, K., 1 1 1995, : : Electrical Engineering in Japan. 115, 8, p. 22-32 11 p.

研究成果: ジャーナルへの寄稿記事

Model structures
Temperature
Uncertainty
Degradation
Economics