Research Output 1983 2020

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2012
2 Citations (Scopus)

Consideration of operating characteristics for bi-directional LLC resonant converter

Yang, S., Abe, S., Zaitsu, T., Yamamoto, J., Shoyama, M. & Ninomiya, T., 2012, In : International Journal of Renewable Energy Research. 2, 4, p. 790-796 7 p.

Research output: Contribution to journalArticle

DC-DC converters
26 Citations (Scopus)

Detection of SF 6 decomposition products generated by DC corona discharge using a carbon nanotube gas sensor

Martin, Y., Li, Z., Tsutsumi, T., Shou, R., Nakano, M., Suehiro, J. & Ohtsuka, S., Apr 1 2012, In : IEEE Transactions on Dielectrics and Electrical Insulation. 19, 2, p. 671-676 6 p., 6180262.

Research output: Contribution to journalArticle

Chemical sensors
Carbon nanotubes
Decomposition
Electric potential
Electric switchgear
3 Citations (Scopus)

Dielectrophoretic assembly of semiconducting carbon nanotubes separated and enriched by spin column chromatography and its application to gas sensing

Nakano, M., Fujioka, M., Mai, K., Watanabe, H., Martin, Y. & Suehiro, J., Apr 1 2012, In : Japanese journal of applied physics. 51, 4 PART 1, 045102.

Research output: Contribution to journalArticle

Column chromatography
Single-walled carbon nanotubes (SWCN)
chromatography
Chemical sensors
Carbon nanotubes
15 Citations (Scopus)

Effect of laser annealing on photoluminescence properties of Phosphorus implanted ZnO nanorods

Shimogaki, T., Okazaki, K., Nakamura, D., Higashihata, M., Asano, T. & Okada, T., Jul 2 2012, In : Optics Express. 20, 14, p. 15247-15252 6 p.

Research output: Contribution to journalArticle

laser annealing
nanorods
phosphorus
photoluminescence
electric furnaces

Electrical conductivity enhancement of a large-scale composite film containing electrically aligned carbon nanotubes

Kitamura, Y., Hasegawa, S., Tone, H., Nakano, M. & Suehiro, J., Nov 26 2012, In : IEEJ Transactions on Fundamentals and Materials. 132, 11, p. 980-981 2 p.

Research output: Contribution to journalArticle

Composite films
Carbon nanotubes
Electrodes
Electric fields
Conductive films
21 Citations (Scopus)

Evaluation of harmonic signals for the detection of magnetic nanoparticles

Yoshida, T., Othman, N. B., Tsubaki, T., Takamiya, J. & Enpuku, K., Oct 29 2012, In : IEEE Transactions on Magnetics. 48, 11, p. 3788-3791 4 p., 6333021.

Research output: Contribution to journalArticle

Nanoparticles
Magnetic moments
6 Citations (Scopus)

Feasibility study on a 400 kW-3600 rpm REBCO fully superconducting motor

Iwakuma, M., Ogata, T., Tomoda, S., Kiss, T., Yoshida, Y., Ishiyama, A., Yamada, Y., Izumi, T. & Shiohara, Y., Jun 25 2012, In : IEEE Transactions on Applied Superconductivity. 22, 3, 5201204.

Research output: Contribution to journalArticle

tapes
Superconducting tapes
Magnetic fields
synchronous motors
armatures
23 Citations (Scopus)

Homogeneous bioassays based on the manipulation of magnetic nanoparticles by rotating and alternating magnetic FieldsA comparison

Dieckhoff, J. H., Yoshida, T., Enpuku, K., Schilling, M. & Ludwig, F., Oct 29 2012, In : IEEE Transactions on Magnetics. 48, 11, p. 3792-3795 4 p., 6332681.

Research output: Contribution to journalArticle

Bioassay
Magnetic fields
Nanoparticles
Magnetization
Fokker Planck equation
12 Citations (Scopus)

Influence of Sb in synthesize of ZnO nanowire using sandwich type substrate in carbothermal evaporation method

Palani, I. A., Okazaki, K., Nakamura, D., Sakai, K., Higashihata, M. & Okada, T., Feb 1 2012, In : Applied Surface Science. 258, 8, p. 3611-3616 6 p.

Research output: Contribution to journalArticle

Nanowires
Evaporation
Substrates
Excitons
Crystal lattices
2 Citations (Scopus)

Influence of ZnO buffer layer on growth of Sb doped ZnO nano wires using nano particle assisted pulsed laser deposition (NAPLD) using Sb as catalyst

Palani, I. A., Nakamura, D., Okazaki, K., Shimogaki, T., Higashihata, M. & Okada, T., Apr 1 2012, In : Advanced Materials Letters. 3, 2, p. 66-70 5 p.

Research output: Contribution to journalArticle

Buffer layers
Pulsed laser deposition
Wire
Catalysts
Nanowires

Lasing of ZnO micro / nanocrystals by ultraviolet laser excitation and atmospheric alignment with laser-induced motions and electrical field

Okazaki, K., Shimogaki, T., Nakamura, D., Higashihata, M. & Okada, T., Nov 1 2012, In : Journal of Laser Micro Nanoengineering. 7, 3, p. 264-268 5 p.

Research output: Contribution to journalArticle

Ultraviolet lasers
Laser excitation
ultraviolet lasers
Nanocrystals
lasing
36 Citations (Scopus)

Magnetic fluid dynamics in a rotating magnetic field

Yoshida, T., Enpuku, K., Dieckhoff, J., Schilling, M. & Ludwig, F., Mar 1 2012, In : Journal of Applied Physics. 111, 5, 053901.

Research output: Contribution to journalArticle

fluid dynamics
magnetic fields
simulation
fluids
magnetization
20 Citations (Scopus)

Magnetic nanoparticle imaging using harmonic signals

Othman, N. B., Tsubaki, T., Yoshida, T., Enpuku, K. & Kandori, A., Oct 29 2012, In : IEEE Transactions on Magnetics. 48, 11, p. 3776-3779 4 p., 6332885.

Research output: Contribution to journalArticle

Singular value decomposition
Nanoparticles
Imaging techniques
Pickups
Medical applications

Malfunction issue of SiC-SIT based DC circuit breaker in 400V DC power distribution systems for data centers

Abe, S., Yang, S., Shoyama, M., Ninomiya, T., Matsumoto, A. & Fukui, A., Jun 2012, In : IEICE Transactions on Communications. E95-B, 6, p. 1990-1996 7 p.

Research output: Contribution to journalArticle

Electric circuit breakers
Silicon carbide
Transistors
MATLAB
Semiconductor materials
39 Citations (Scopus)

Optimization of magnetic nanoparticles for magnetic particle imaging

Ludwig, F., Wawrzik, T., Yoshida, T., Gehrke, N., Briel, A., Eberbeck, D. & Schilling, M., Oct 29 2012, In : IEEE Transactions on Magnetics. 48, 11, p. 3780-3783 4 p., 6332841.

Research output: Contribution to journalArticle

Nanoparticles
Imaging techniques
Magnetic moments
Crystallites
Magnetization
13 Citations (Scopus)

Pressure-induced growth evolution of different ZnO nanostructures by a pulsed laser ablation method

Zhang, P., Zhou, G. D., Gong, H. B., Xu, H. Y., Nakamura, D., Okada, T., Zeng, H. B. & Cao, B. Q., Mar 1 2012, In : Science of Advanced Materials. 4, 3-4, p. 455-462 8 p.

Research output: Contribution to journalArticle

Laser ablation
Pulsed lasers
Nanostructures
Nanoparticles
Nanowires
2 Citations (Scopus)

Pretreatment of cell membranes for improved electropermeabilization- assisted dielectrophoretic impedance measurement

Nakano, M., Hamada, R., Takayama, H., Shonishi, Y., Hisajima, T., Mao, L. & Suehiro, J., Oct 1 2012, In : Sensors and Actuators, B: Chemical. 173, p. 676-681 6 p.

Research output: Contribution to journalArticle

impedance measurement
Cell membranes
pretreatment
Bacteria
Microelectrodes

Recent development in biomedical sensing systems using magnetic markers

Enpuku, K. & Yoshida, T., Jan 1 2012, In : Journal of the Institute of Electrical Engineers of Japan. 132, 5, p. 294-297 4 p.

Research output: Contribution to journalArticle

Response of a carbon nanotube gas sensor to impulse discharges in SF 6 gas

Shou, R., Tsutsumi, T., Martin, Y., Nakano, M. & Suehiro, J., Nov 26 2012, In : IEEJ Transactions on Fundamentals and Materials. 132, 11, p. 978-979 2 p.

Research output: Contribution to journalArticle

Chemical sensors
Discharge (fluid mechanics)
Carbon nanotubes
Gases
Electric switchgear
20 Citations (Scopus)

Scaling factor design based variable step size incremental resistance maximum power point tracking for PV systems

Ahmed, E. M. & Shoyama, M., Jan 1 2012, In : Journal of Power Electronics. 12, 1, p. 164-171 8 p.

Research output: Contribution to journalArticle

Digital signal processors
Control theory
MATLAB
Dynamical systems
Irradiation
8 Citations (Scopus)

Structural and optical properties of Sb-Al co-doped ZnO nanowires synthesized using Nanoparticle Assisted Pulsed Laser Deposition (NAPLD) with Sb as catalyst

Palani, I. A., Nakamura, D., Okazaki, K., Highasiata, M. & Okada, T., Jun 25 2012, In : Journal of Alloys and Compounds. 527, p. 112-116 5 p.

Research output: Contribution to journalArticle

Pulsed laser deposition
Nanowires
Structural properties
Optical properties
Nanoparticles
2 Citations (Scopus)

Synthesis of core/shell nanowires using doped ZnO targets

Nakamura, D., Okazaki, K., Kubo, K., Tsuta, K., Higashihata, M. & Okada, T., Feb 1 2012, In : Journal of Laser Micro Nanoengineering. 7, 1, p. 109-111 3 p.

Research output: Contribution to journalArticle

Nanowires
nanowires
synthesis
Optoelectronic devices
Pulsed laser deposition
40 Citations (Scopus)

Ultraviolet whispering-gallery-mode lasing in ZnO micro/nano sphere crystal

Okazaki, K., Shimogaki, T., Fusazaki, K., Higashihata, M., Nakamura, D., Koshizaki, N. & Okada, T., Nov 19 2012, In : Applied Physics Letters. 101, 21, 211105.

Research output: Contribution to journalArticle

whispering gallery modes
zinc oxides
lasing
crystals
crystal growth
2011

AC-loss properties of Bi-2223 multifilamentary taped wires with a central insulation layer

Funaki, K., Nogami, K., Kawasaki, M., Iwakuma, M., Ayai, N., Kobayashi, S., Kikuchi, M. & Hayashi, K., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1110-1113 4 p.

Research output: Contribution to journalArticle

insulation
Insulation
alternating current
wire
Wire
2 Citations (Scopus)

AC over-current test results of YBCO conductor for YBCO power transformer with fault current limiting function

Tomioka, A., Otonari, T., Ogata, T., Iwakuma, M., Okamoto, H., Hayashi, H., Iijima, Y., Saito, T., Gosho, Y., Tanabe, K., Izumi, T. & Shiohara, Y., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1367-1373 7 p.

Research output: Contribution to journalArticle

Electric fault currents
Power transformers
transformers
Tapes
alternating current
16 Citations (Scopus)

An array of interdigitated parallel wire electrodes for preparing a large-scale nanocomposite film with aligned carbon nanotubes

Sun, W., Tomita, H., Hasegawa, S., Kitamura, Y., Nakano, M. & Suehiro, J., Nov 9 2011, In : Journal of Physics D: Applied Physics. 44, 44, 445303.

Research output: Contribution to journalArticle

Carbon Nanotubes
Nanocomposite films
Carbon nanotubes
nanocomposites
carbon nanotubes
12 Citations (Scopus)

Catalyst/dopant-free growth of ZnO nanobelts with different optical properties from nanowires grown via a catalyst-assisted method

Cao, B. Q., Liu, Z. M., Xu, H. Y., Gong, H. B., Nakamura, D., Sakai, K., Higashihata, M. & Okada, T., Jun 21 2011, In : CrystEngComm. 13, 12, p. 4282-4287 6 p.

Research output: Contribution to journalArticle

Nanobelts
Nanowires
nanowires
Optical properties
Doping (additives)
3 Citations (Scopus)

Design of pickup coil made of litz wire and cooled at 77K for high sensitive measurement of AC magnetic fields

Enpuku, K., Hirakawa, S., Momotomi, R., Matsuo, M., Yoshida, T. & Kandori, A., Jul 1 2011, In : Japanese Journal of Applied Physics. 50, 7 PART 1, 076602.

Research output: Contribution to journalArticle

Pickups
alternating current
coils
wire
Wire
19 Citations (Scopus)

Detection of magnetic nanoparticles using the second-harmonic signal

Yoshida, T., Ogawa, K., Tsubaki, T., Othman, N. B. & Enpuku, K., Oct 1 2011, In : IEEE Transactions on Magnetics. 47, 10, p. 2863-2866 4 p., 6028251.

Research output: Contribution to journalArticle

Nanoparticles
Pickups
Biopsy
Medical applications
13 Citations (Scopus)

Development of a REBCO superconducting transformer with current limiting function

Iwakuma, M., Tomioka, A., Otonari, T., Ogata, T., Tsutsumi, T., Sato, S., Hayashi, H., Okamoto, H., Iijima, Y., Saitoh, T., Aoki, Y., Koizumi, T., Hasegawa, T., Ohkuma, T., Gosho, Y., Yamada, Y., Izumi, T. & Shiohara, Y., Jun 1 2011, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1405-1408 4 p., 5634082.

Research output: Contribution to journalArticle

transformers
Superconducting tapes
Critical currents
tapes
critical current
37 Citations (Scopus)

Development of rapid oral bacteria detection apparatus based on dielectrophoretic impedance measurement method

Hamada, R., Suehiro, J., Nakano, M., Kikutani, T. & Konishi, K., Jun 1 2011, In : IET Nanobiotechnology. 5, 2, p. 25-31 7 p.

Research output: Contribution to journalArticle

Electric Impedance
Bacteria
Electrophoresis
Inspection
Electric Conductivity
40 Citations (Scopus)

FPGA-Based spread-spectrum schemes for conducted-noise mitigation in DCDC power converters: Design, implementation, and experimental investigation

Dousoky, G. M., Shoyama, M. & Ninomiya, T., Feb 1 2011, In : IEEE Transactions on Industrial Electronics. 58, 2, p. 429-435 7 p., 5462956.

Research output: Contribution to journalArticle

Power converters
Field programmable gate arrays (FPGA)
Controllers
Cost reduction
Noise abatement
9 Citations (Scopus)

HTS SQUID magnetometer using resonant coupling of cooled cu pickup coil

Enpuku, K., Hirakawa, S., Tsuji, Y., Momotomi, R., Matsuo, M., Yoshida, T. & Kandori, A., Jun 1 2011, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 1, p. 514-517 4 p., 5682030.

Research output: Contribution to journalArticle

Pickups
SQUIDs
Magnetometers
magnetometers
coils
3 Citations (Scopus)

Improved orientation strategy for energy-efficiency in photovoltaic panels

Dousoky, G. M., El-Sayed, A. H. M. & Shoyama, M., May 2011, In : Journal of Power Electronics. 11, 3, p. 335-341 7 p.

Research output: Contribution to journalArticle

Energy efficiency
Solar cells
Systems analysis
Radiation
Costs
24 Citations (Scopus)

Influence of Sb as a catalyst in the growth of ZnO nano wires and nano sheets using Nanoparticle Assisted Pulsed Laser Deposition (NAPLD)

Palani, I. A., Nakamura, D., Okazaki, K., Higashihata, M. & Okada, T., Nov 15 2011, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 176, 18, p. 1526-1530 5 p.

Research output: Contribution to journalArticle

Nanosheets
Pulsed laser deposition
Nanowires
pulsed laser deposition
Nanostructures
10 Citations (Scopus)

Influence of Sb on a controlled-growth of aligned ZnO nanowires in nanoparticle-assisted pulsed-laser deposition

Nakamura, D., Okazaki, K., Palani, I. A., Higashihata, M. & Okada, T., Jun 1 2011, In : Applied Physics A: Materials Science and Processing. 103, 4, p. 959-963 5 p.

Research output: Contribution to journalArticle

Pulsed laser deposition
Nanowires
pulsed laser deposition
nanowires
Nanoparticles
40 Citations (Scopus)

Lasing characteristics of an optically pumped single ZnO nanosheet

Okazaki, K., Nakamura, D., Higashihata, M., Iyamperumal, P. & Okada, T., Oct 10 2011, In : Optics Express. 19, 21, p. 20389-20394 6 p.

Research output: Contribution to journalArticle

lasing
ultraviolet lasers
thresholds
silica glass
Q switched lasers
12 Citations (Scopus)

Lasing characteristics of ZnO nanosheet excited by ultraviolet laser beam

Okazaki, K., Kubo, K., Shimogaki, T., Nakamura, D., Higashihata, M. & Okada, T., Nov 2011, In : Advanced Materials Letters. 2, 5, p. 354-357 4 p.

Research output: Contribution to journalArticle

Ultraviolet lasers
Nanosheets
Laser beams
Semiconductor lasers
Pumping (laser)
7 Citations (Scopus)

Liquid-phase immunoassays using brownian relaxation of magnetic markers

Bhuiya, A. K., Mitake, T., Asai, M., Ito, T., Chosakabe, S., Yoshida, T., Enpuku, K. & Kandori, A., Oct 1 2011, In : IEEE Transactions on Magnetics. 47, 10, p. 2867-2870 4 p., 6027621.

Research output: Contribution to journalArticle

Biotin
Polymers
Polystyrenes
Conjugated polymers
Liquids
3 Citations (Scopus)

Micromachining of polymethylmethacrylate and polydimethylsiloxane using laser plasma soft X-rays

Torii, S., Makimura, T., Okazaki, K., Nakamura, D., Takahashi, A., Okada, T., Niino, H. & Murakami, K., Dec 1 2011, In : Journal of Laser Micro Nanoengineering. 6, 3, p. 235-238 4 p.

Research output: Contribution to journalArticle

Micromachining
Polydimethylsiloxane
micromachining
laser plasmas
Plasmas
2 Citations (Scopus)

Over-current characteristics of model coil using Y-based multi-filament wire for superconducting power transformers

Okamoto, H., Hayashi, H., Iwakuma, M., Tomioka, A., Saito, T., Gosho, Y., Tanabe, K. & Shiohara, Y., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1379-1380 2 p.

Research output: Contribution to journalArticle

Power transformers
transformers
filaments
coils
wire
4 Citations (Scopus)

Performance of HTS SQUID using resonant coupling of cooled Cu pickup coil

Enpuku, K., Hirakawa, S., Momotomi, R., Matsuo, M. & Yoshida, T., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1234-1237 4 p.

Research output: Contribution to journalArticle

Pickups
SQUIDs
Magnetometers
coils
magnetometers
1 Citation (Scopus)

Single-walled carbon nanotube gas sensor used in partial discharge detection of GIS

Wei, N., Ding, W. D., Zhu, Y. D., Su, C. Q. & Suehiro, J., Nov 2011, In : Gaodianya Jishu/High Voltage Engineering. 37, 11, p. 2700-2706 7 p.

Research output: Contribution to journalArticle

Partial discharges
Single-walled carbon nanotubes (SWCN)
Chemical sensors
Geographic information systems
Sensors
18 Citations (Scopus)

Stimulated optical emission from ZnO nanobelts grown with a simple carbothermal evaporation method

Cao, B. Q., Sakai, K., Nakamura, D., Palani, I. A., Gong, H. B., Xu, H. Y., Higashihata, M. & Okada, T., Feb 10 2011, In : Journal of Physical Chemistry C. 115, 5, p. 1702-1707 6 p.

Research output: Contribution to journalArticle

Nanobelts
stimulated emission
light emission
Evaporation
evaporation
1 Citation (Scopus)

Sub-wavelength micromachining of silica glass by irradiation of CO 2 laser with Fresnel diffraction

Okazaki, K., Torii, S., Makimura, T., Niino, H., Murakami, K., Nakamura, D., Takahashi, A. & Okada, T., Aug 1 2011, In : Applied Physics A: Materials Science and Processing. 104, 2, p. 593-599 7 p.

Research output: Contribution to journalArticle

Fresnel diffraction
Micromachining
silica glass
Carbon Monoxide
Fused silica
3 Citations (Scopus)

Synthesis of ZnO nanowire heterostructures by laser ablation and their photoluminescence

Nakamura, D., Matsumoto, T., Kumeda, A., Toya, K., Okazaki, K., Higashihata, M. & Okada, T., Mar 1 2011, In : Journal of Laser Micro Nanoengineering. 6, 1, p. 23-25 3 p.

Research output: Contribution to journalArticle

Laser ablation
laser ablation
Nanowires
Heterojunctions
Nanostructures
6 Citations (Scopus)

The short-circuit test results of 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer

Tomioka, A., Otonari, T., Ogata, T., Iwakuma, M., Okamoto, H., Hayashi, H., Iijima, Y., Saito, T., Gosho, Y., Tanabe, K., Izumi, T. & Shiohara, Y., Nov 1 2011, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1374-1378 5 p.

Research output: Contribution to journalArticle

short circuits
short circuit currents
transformers
Short circuit currents
conductors
38 Citations (Scopus)

Variable step size maximum power point tracker using a single variable for stand-alone battery storage pv systems

Ahmed, E. M. & Shoyama, M., Jan 1 2011, In : Journal of Power Electronics. 11, 2, p. 218-227 10 p.

Research output: Contribution to journalArticle

Electric potential
Field programmable gate arrays (FPGA)
Sensors
Maximum power point trackers
2010
1 Citation (Scopus)
Frequency modulation
DC-DC converters
Noise abatement
Controllers
Modulation
37 Citations (Scopus)

Ac susceptibility measurement of magnetic markers in suspension for liquid phase immunoassay

Enpuku, K., Tamai, Y., Mitake, T., Yoshida, T. & Matsuo, M., Aug 1 2010, In : Journal of Applied Physics. 108, 3, 034701.

Research output: Contribution to journalArticle

immunoassay
markers
liquid phases
magnetic permeability
beads