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979 results on '"Miyahara Y"'

2. Low Temperature Electrostatic Force Microscopy of a Deep Two Dimensional Electron Gas using a Quartz Tuning Fork

Author

Hedberg, J. A., Lal, A., Miyahara, Y., Grütter, P., Gervais, G., Hilke, M., Pfeiffer, L., and West, K. W.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Using an ultra-low temperature, high magnetic field scanning probe microscope, we have measured electric potentials of a deeply buried two dimensional electron gas (2DEG). Relying on the capacitive coupling between the 2DEG and a resonant tip/cantilever structure, we can extract electrostatic potential information of the 2DEG from the dynamics of the oscillator. We present measurements using a quartz tuning fork oscillator and a 2DEG with a cleaved edge overgrowth structure. The sensitivity of the quartz tuning fork as force sensor is demonstrated by observation of Shubnikov de Haas oscillations at a large tip-2DEG separation distance of more than 500 nm.

Published
2010
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7. 356 IL-17A Is the Critical Cytokine for Liver and Spleen Amyloidosis in Inflammatory Skin Disease

Author

Iida, S., primary, Nakanishi, T., additional, Momose, F., additional, Ichishi, M., additional, Mizutani, K., additional, Matsushima, Y., additional, Umaoka, A., additional, Kondo, M., additional, Habe, K., additional, Hirokawa, Y., additional, Watanabe, M., additional, Iwakura, Y., additional, Miyahara, Y., additional, Imai, Y., additional, and Yamanaka, K., additional

Published
2022
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9. Preparation of Fe-Pt thin-sheet magnets using exfoliation behavior

Author

Nakano, M., Miyahara, Y., Tsuruoka, A., Yamashita, A., Yanai, T., Honda, T., Shinshi, T., Fukunaga, H., Nakano, M., Miyahara, Y., Tsuruoka, A., Yamashita, A., Yanai, T., Honda, T., Shinshi, T., and Fukunaga, H.

Abstract

In this research, Fe-Pt thin sheets thicker than 10 microns with Fe contents ranging from 50 to 60 at.% were prepared. Isotropic Fe-Pt thin sheets could be obtained by taking advantage of the exfoliation behavior after depositing Fe-Pt films on Si substrates using a laser ablation technique. A post-annealing process was used to obtain the L10 phase, and the (BH)max value of Fe-Pt thin sheets showed approximately 70 kJ/m3. Moreover, the test of a cantilever containing the obtained Fe-Pt thin sheet showed good mechanical characteristics., AIP Advances, 12(3), art. no. 035232; 2022

Published
2022

29. A novel affinity-enhanced NY-ESO-1-targeting TCR-redirected T cell transfer exhibited early-onset cytokine release syndrome and subsequent tumour responses in synovial sarcoma patients

Author

Hattori, H., primary, Ishihara, M., additional, Kitano, S., additional, Miyahara, Y., additional, Kato, H., additional, Mishima, H., additional, Yamamoto, N., additional, Funakoshi, T., additional, Kojima, T., additional, Sasada, T., additional, Sato, E., additional, Okamoto, S., additional, Tomura, D., additional, Chono, H., additional, Nukaya, I., additional, Mineno, J., additional, Ikeda, H., additional, Watanabe, T., additional, Kageyama, S., additional, and Shiku, H., additional

Published
2019
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30. Randomized phase II clinical trial of NY-ESO-1 protein vaccine combined with cholesteryl pullulan (CHP-NY-ESO-1) in resected esophageal cancer patients

Author

Kageyama, S., primary, Nagata, Y., additional, Ishikawa, T., additional, Abe, T., additional, Murakami, M., additional, Kojima, T., additional, Taniguchi, K., additional, Shimada, H., additional, Hirano, S., additional, Ueda, S., additional, Kanetaka, K., additional, Wada, H., additional, Yamaue, H., additional, Sato, E., additional, Miyahara, Y., additional, Goshima, N., additional, Ikeda, H., additional, Yamada, T., additional, Osako, M., additional, and Shiku, H., additional

Published
2019
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43. 1182PD - A novel affinity-enhanced NY-ESO-1-targeting TCR-redirected T cell transfer exhibited early-onset cytokine release syndrome and subsequent tumour responses in synovial sarcoma patients

Author

Hattori, H., Ishihara, M., Kitano, S., Miyahara, Y., Kato, H., Mishima, H., Yamamoto, N., Funakoshi, T., Kojima, T., Sasada, T., Sato, E., Okamoto, S., Tomura, D., Chono, H., Nukaya, I., Mineno, J., Ikeda, H., Watanabe, T., Kageyama, S., and Shiku, H.

Published
2019
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44. Ozone Generation in Dry Air Using Pulsed Discharges With and Without a Solid Dielectric Layer

Author

Samaranayake, W. J. M., Miyahara, Y., Namihira, T., Katsuki, S., Hackam, R., and Akiyama, H.

Subjects
Ozone -- Analysis, Electric discharges -- Analysis, Dielectrics -- Analysis, Alternating current -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

Energy efficient generation of ozone is very important because ozone is being used increasingly in a wide range of industrial applications. Ozonizers usually use dielectric barrier discharges and employ alternating current (ac) with consequent heat generation, which necessitates cooling. In the present study, very short duration pulsed voltage is employed resulting in reduced heating of the gas and discharge reactor A comparison of ozone generation in dry air using a coaxial concentric electrode system with and without a solid dielectric layer is reported. Two types of dielectric layers were employed, ceramic and polyvinylchloride (PVC). The effects of peak pulsed voltage (12.5 to 62 kV), reactor length (0.1 to 1 m), pulse repetition rate (25 to 400 pulses per second, pps), gas flow rate (1.5 to 3.0 1/min) and variation of the pitch length of the spiral wire forming the central electrode (5 to 10 mm) on the concentration and production yield of ozone (g/kWh) are reported. A comparison is made between the performance of discharge reactors with (ceramic reactor Type IIC and PVC reactor Type IIP) and without (reactor Type I) a dielectric layer, using the same electrode gap separation (15 mm) and reactor lengths (0.157 and 1 m). High production yields of ozone in dry air of ~ 122, 52 and 60 g/kWh were obtained when using, respectively ceramic, PVC, and no dielectric layer, for a fixed pulse rate of 100 pps, 1.5 1/min flow rate and for a relatively short length of the reactor of 157 mm.

Published
2001

45. Ozone Production Using Pulsed Dielectric Barrier Discharge in Oxygen

Author

Samaranayake, W. J. M., Miyahara, Y., Namihira, T., Katsuki, S., Hackam, R., and Akiyama, H.

Subjects
Ozone -- Testing, Dielectrics -- Research, Voltage -- Measurement, Business, Electronics, Electronics and electrical industries
Abstract

The production of ozone was investigated using a dielectric barrier discharge in oxygen, and employing short-duration pulsed power. The dependence of the ozone concentration (parts per million, ppm) and ozone production yield (g([O.sub.3])/kWh) on the peak pulsed voltage (17.5 to 57.9 kV) and the pulse repetition rate (25 to 400 pulses/s, pps) was investigated. In the present study, the following parameters were kept constant: a pressure of 1.01x[10.sup.5] Pa, a temperature of 26 [+ or -] 4 [degrees] C, a gas flow rate of 3.0 1/min and a gaseous gap length of 11 mm. A concentric coaxial cylindrical reactor was used. A spiral copper wire (1 mm in diameter) was wound on a polyvinylchloride (PVC) cylindrical configuration (26 mm in diameter) and placed centrally in a concentric coaxial electrode system with 4 mm thick PVC dielectric layer adjacent to a copper outer electrode of 58 mm in internal diameter. HV and current pulses were provided by a magnetic pulse compressor power source.

Published
2000

46. Pulsed Power Production of Ozone in 02/N2 iin a Coaxial Reactor without Dielectric Layer

Author

Samaranayake, W. J. M., Miyahara, Y., Namihira, T., Katsuki, S., Hackam, R., and Akiyama, H.

Abstract

Very short duration pulsed streamer discharges have been used to produce ozone in a gas mixture of nitrogen and oxygen at atmospheric pressure. The ratio of nitrogen to oxygen in the mixture was varied in the range from 2.5/0.5 to 0.5/2.5, while maintaining a total flow rate of 3 l/min. The production of ozone was found to be higher for a specific mixture ratio of N2/O2 than that in oxygen or in dry air. The production of ozone in O2 was higher than that in dry air. The production yield of ozone (g/kWh) increased with decreasing nitrogen in the O2/N2 mixture. It has been found that the peak of the streamer discharge current decreased with time after application of the pulsed power. This decrease in the current corresponded with the increase in the ozone production and is attributed to the loss of electrons in the discharge current due to their attachment to ozone to form negative ions.

Published
2001

49. Phase Shift and Radiation Spectrum of a Straight Series of Undulators

Author

Miyahara Y

Subjects
Physics, Nuclear and High Energy Physics, Radiation, Series (mathematics), Electromagnetic spectrum, business.industry, Field strength, Undulator, Optics, Physics::Accelerator Physics, Ideal (ring theory), Constant (mathematics), business, Instrumentation
Abstract

In constructing a very long undulator it is convenient to separate the undulator into a number of sections with a constant gap distance between the sections. The properties of the radiation spectrum expected in such an undulator were investigated assuming ideal short undulators for each section. It is shown that the peak height and width of the spectrum do not deteriorate if the radiation phases of the sections are matched to each other, even with a large gap distance. This can be realized by adjusting the field strength of the three-pole wigglers installed in each gap.

Published
1996

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