Search results for: H. Kamijo

Items from 1 to 19 out of 19 results

article

Extranodal natural killer/T‐cell lymphoma, nasal type with CCR3 and CXCR3 expression

I. Omori, H. Kamijo, H. Suga, T. Miyagaki, more

Clinical and Experimental Dermatology > 45 > 5 > 608 - 610

article

Increase in Levitation Force Due to Multifaceted Arrangement of a Magnetic Levitation System Using HTS Bulk

T. Takao, S. Yasukawa, N. Negishi, T. Usami, more

IEEE Transactions on Applied Superconductivity > 2016 > 26 > 4 > 1 - 5

We studied a magnetic levitation system that uses the magnetic shielding effect of high-temperature superconductor (HTS) bulks. The basic model in our system is composed of a ferromagnetic rail, HTS bulks, and a permanent magnet. To increase the levitation force in the system, we used three basic models and proposed some modified models that featured different arrangements of the three basic models...

article

Levitation Property of Parallel Magnetic Levitation System With Magnetic Shielding Effect of HTS Bulks

T. Takao, T. Horie, T. Usami, M. Takahashi, more

IEEE Transactions on Applied Superconductivity > 2014 > 24 > 3 > 1 - 4

We studied a magnetic levitation system using the magnetic shielding effect of a GdBCO bulk superconductor. One set of permanent magnet, ferromagnetic rail, and HTS bulk is called the basic model. To increase the magnetic levitation force, we place two basic models side by side. There are two kinds of models. The first has the S poles of the permanent magnets in both modules on the upper side and...

article

Increase of Levitation Properties on Magnetic Levitation System Using Magnetic Shielding Effect of GdBCO Bulk Superconductor

T Takao, S Kameyama, T Doi, N Tanoue, more

IEEE Transactions on Applied Superconductivity > 2011 > 21 > 3-2 > 1543 - 1546

We have studied a magnetic levitation system using magnetic shielding effect of a superconducting bulk made of gadolinium. We extended the experimental apparatus from the previously used basic model to parallely placed 2-basic model. The peak levitation force in the 2-basic model was more than double the force in the basic model due to the bending of magnetic force lines. We could successfully obtain...

chapter

Development of superconducting transformer for railway traction

H Hata, H Kamijo, K Nagashima, K Ikeda

Electrical Systems for Aircraft, Railway and Ship Propulsion > 1 - 4

2010 Electrical Systems for Aircraft, Railway and Ship Propulsion (ESARS 2010)

We have been developing superconducting transformer for high speed train. Its objects are reducing the weight and energy consumption. We have developed 4MVA class superconducting transformer in 2004. After that, we have improved the efficiency from 96% to 98%. We also have developed 1kW prototype lightweight refrigerator which is essential to realize superconducting transformer.

chapter

Neuro based classification of gas leakage sounds in pipeline

A. Shibata, M. Konishi, Y. Abe, R. Hasegawa, more

2009 International Conference on Networking, Sensing and Control > 298 - 302

2009 International Conference on Networking, Sensing and Control

In industry, such as oil refinery industry, there may occur various kinds of safety problems for pipelines aged after its constructions. To realize preventive maintenance of pipelines, there are large needs for the diagnosis technology of gas leakage. In this study, gas leakage sounds generated from the crack of pipe is analized and tried to be used for detection of the gas leakage. Sound data for...

article

Development of Low-AC-Loss Bi-2223 Superconducting Multifilamentary Wires

K. Funaki, Y. Sasasige, H. Yanagida, S. Yamasaki, more

IEEE Transactions on Applied Superconductivity > 2009 > 19 > 3-3 > 3053 - 3056

We have been designing and developing advanced Ag-sheathed Bi-2223 multifilamentary wires for the future applications to superconducting transformers of electric rolling stocks. Trial wires were twisted without remarkable degradation in the transport property for suppressing AC losses in a perpendicular magnetic field configuration. The AC losses were measured by a saddle-shaped pickup coil in a wide...

chapter

Recognition of facility sound with background noises

A. Shibata, M. Konishi, Y. Abe, R. Hasegawa, more

2009 7th Asian Control Conference > 887 - 892

2009 7th Asian Control Conference (ASCC 2009)

The detection of abnormality in a facility is vital for plant operation. The methods by cameras and sensors are traditionally used but not sufficient for abnormal detection in the early stage. On the other hand, human feels the change of surroundings by various sensings such as eyes, noses, and ears. The diagnosis by the sound has the advantage of being able to detect the wide-ranging abnormalities...

chapter

Neuro based acoustic diagnosis of gas leakage in pipeline

A. Shibata, M. Konishi, Y. Abe, R. Hasegawa, more

2008 SICE Annual Conference > 283 - 287

SICE 2008 - 47th Annual Conference of the Society of Instrument and Control Engineers of Japan

In industry, such as oil refinery industry, there may occur various kinds of safety problems for pipelines aged after its constructions. To realize preventive maintenance of pipelines, there are large needs for the diagnosis technology of gas leakage. In this study, gas leakage sounds generated from the piping crack is analized and tried to be used for detection of the gas leakage. Sound data for...

article

Interaction between a Liquid Crystalline Molecule (4‘-Pentyl-4-cyanobiphenyl) and a Poly(vinyl alcohol) Derivative Containing an Azobenzene Group at the Air−Water Interface: Sum Frequency Generation Spectroscopic Study

C. Ohe, M. Arai, H. Kamijo, M. Adachi, more

The Journal of Physical Chemistry C > 2008 > 112 > 16 > 6359 - 6365

article

Sum Frequency Generation Spectroscopic Study on Photoinduced Isomerization of Poly(vinyl alcohol) Containing Azobenzene Side Chain at the Air−Water Interface

C. Ohe, H. Kamijo, M. Arai, M. Adachi, more

The Journal of Physical Chemistry C > 2008 > 112 > 1 > 172 - 181

article

Maximum trapped field of a ring bulk superconductor by low pulsed field magnetization

M. Tsuchimoto, H. Kamijo

Physica C: Superconductivity and its applications > 2007 > 463-465 > Complete > 1352-1355

Pulsed field magnetization is an important technique for a bulk superconducting magnet, which is one practical application of a bulk high T _c superconductor (HTS). Full magnetization of a ring HTS is effective to obtain large trapped field for low pulsed field magnetization. In this study, trapped field in a ring bulk superconductor by the low pulsed field magnetization is numerically analyzed...

chapter

PID Gain Tuning Method for Oil Refining Controller based on Neural Networks

Y. Abe, M. Konishi, Jun Imai, R. Hasagawa, more

Second International Conference on Innovative Computing, Informatio and Control (ICICIC 2007) > 105

2007 Second International Conference on Innovative Computing, Information and Control

In these years, plant control systems are being highly automated. But the control performances change with the passage of time, so it is necessary to tune them. This is why human experts tune the control system to improve the total plant performances. In this study, PID control system for the oil refining chemical plant process is treated. In the oil refining controller, there are thousands of the...

article

Sum Frequency Generation Spectroscopic Studies on Phase Transitions of Phospholipid Monolayers Containing Poly(ethylene oxide) Lipids at the Air−Water Interface

C. Ohe, Y. Goto, M. Noi, M. Arai, more

The Journal of Physical Chemistry B > 2007 > 111 > 7 > 1693 - 1700

article

Characteristics of Levitation Force Using Magnetic Shielding Effect of YBCO Bulks

T. Takao, S. Suzuki, M. Hashimoto, J. Takeda, more

IEEE Transactions on Applied Superconductivity > 2007 > 17 > 2-2 > 2107 - 2110

A magnetic levitation system using a magnetic shielding effect of a HTS bulk is numerically studied. The system is constructed by permanent magnets, zero-fleld-cooled superconducting bulks and ferromagnetic rails. And lift-force stability is obtained from magnetic field that is generated by the permanent magnet and is shaped by the superconducting bulks. In our previous studies, we showed the characteristics...

article

Tests of Superconducting Traction Transformer for Railway Rolling Stock

H. Kamijo, H. Hata, H. Fujimoto, A. Inoue, more

IEEE Transactions on Applied Superconductivity > 2007 > 17 > 2-2 > 1927 - 1930

We have been developing a lightweight and high-efficiency superconducting traction transformer for railway rolling stock. We designed and fabricated a prototype superconducting traction transformer of a floor-mount type for Shinkansen rolling stock. In this study, we present test results such as type test, system test and vibration test. We performed the type test in accordance with JIS, E5007. In...

article

Numerical Analysis of Levitating Force Using Magnetic Shielding Effect of YBCO Plates

T. Takao, A. Niiro, S. Suzuki, M. Hashimoto, more

IEEE Transactions on Applied Superconductivity > 2006 > 16 > 2 > 1096 - 1099

A magnetic levitation system using magnetic shielding effect of HTS bulk is studied. The system is constructed by permanent magnets, zero-field-cooled superconducting bulks and ferromagnetic rails, and lift force stability is obtained from magnetic field that is generated by the permanent magnet and is shaped by the superconducting bulks. In previous studies, we showed characteristics of lift force...

article

Maximum repulsed magnetization of a bulk superconductor with low pulsed field

M. Tsuchimoto, H. Kamijo, H. Fujimoto

Physica C: Superconductivity and its applications > 2005 > 426-431 > Part 1 > 800-803

Pulsed field magnetization of a bulk high-T _c superconductor (HTS) is important technique especially for practical applications of a bulk superconducting magnet. Full magnetization is not obtained for low pulsed field and trapped field is decreased by reversed current in the HTS. The trapped field distribution by repulsed magnetization was previously reported in experiments with temperature...

article

Repulsed magnetization of a bulk superconductor by long and low field with temperature control

K. Murata, M. Tsuchimoto, H. Kamijo, H. Fujimoto

Physica C: Superconductivity and its applications > 2004 > 412-414 > Part 1 > 704-707

Pulsed field magnetization is important technique to magnetize a bulk high T _c superconductor (HTS), especially for practical applications of bulk superconducting magnets. Several important points for the pulsed field magnetization are reported from many experimental results. There is appropriate applied field for the maximum magnetization because of heat generation, and repulsed technique...

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