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1,723 results on '"Hirata, S."'

59. Three-layer Stacked Color Image Sensor With 2.0-μm Pixel Size Using Organic Photoconductive Film

Author

Togashi, H., primary, Yagi, I., additional, Murata, M., additional, Kuribayashi, M., additional, Koga, F., additional, Yamaguchi, T., additional, Oike, Y., additional, Ezaki, T., additional, Hirayama, T., additional, Watanabe, T., additional, Joei, M., additional, Hayashi, T., additional, Hirata, S., additional, Fukuoka, S., additional, Ando, Y., additional, Sato, Y., additional, and Yamamoto, J., additional

Published
2019
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64. Precision Analysis of the <math><mrow><mmultiscripts><mrow><mi>Xe</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>136</mn></mrow></mmultiscripts></mrow></math> Two-Neutrino <math><mi>β</mi><mi>β</mi></math> Spectrum in KamLAND-Zen and Its Impact on the Quenching of Nuclear Matrix Elements

Author

Gando, A., Gando, Y., Hachiya, T., Ha Minh, M., Hayashida, S., Honda, Y., Hosokawa, K., Ikeda, H., Inoue, K., Ishidoshiro, K., Kamei, Y., Kamizawa, K., Kinoshita, T., Koga, M., Matsuda, S., Mitsui, T., Nakamura, K., Ono, A., Ota, N., Otsuka, S., Ozaki, H., Shibukawa, Y., Shimizu, I., Shirahata, Y., Shirai, J., Sato, T., Soma, K., Suzuki, A., Takeuchi, A., Tamae, K., Ueshima, K., Watanabe, H., Chernyak, D., Kozlov, A., Obara, S., Yoshida, S., Takemoto, Y., Umehara, S., Fushimi, K., Hirata, S., Berger, B. E., Fujikawa, B. K., Learned, J. G., Maricic, J., Winslow, L. A., Efremenko, Y., Karwowski, H. J., Markoff, D. M., Tornow, W., O’Donnell, T., Detwiler, J. A., Enomoto, S., Decowski, M. P., Menéndez, J., Dvornický, R., and Šimkovic, F.

Abstract

We present a precision analysis of the Xe136 two-neutrino ββ electron spectrum above 0.8 MeV, based on high-statistics data obtained with the KamLAND-Zen experiment. An improved formalism for the two-neutrino ββ rate allows us to measure the ratio of the leading and subleading 2νββ nuclear matrix elements (NMEs), ξ312ν=−0.26−0.25+0.31. Theoretical predictions from the nuclear shell model and the majority of the quasiparticle random-phase approximation (QRPA) calculations are consistent with the experimental limit. However, part of the ξ312ν range allowed by the QRPA is excluded by the present measurement at the 90% confidence level. Our analysis reveals that predicted ξ312ν values are sensitive to the quenching of NMEs and the competing contributions from low- and high-energy states in the intermediate nucleus. Because these aspects are also at play in neutrinoless ββ decay, ξ312ν provides new insights toward reliable neutrinoless ββ NMEs.

Published
2019

86. Low cost high voltage GaN polarization superjunction field effect transistors

Author

Kawai, H., Yagi, S., Hirata, S., Nakamura, F., Saito, T., Kamiyama, M., Yamamoto, M., Amano, H., Unni, V., and Narayanan, E.M.S.

Subjects
Hardware_INTEGRATEDCIRCUITS
Abstract

A comprehensive overview of novel high voltage GaN field effect transistors (FETs) based on the Polarization Superjunction (PSJ) concept and a cost-effective approach towards manufacturing these high performance devices are presented. Current challenges impeding wider adoption of GaN power switching transistors in applications, and latest results of scaled-up PSJ-FETs from POWDEC KK, have also been discussed. The article also presents hard-switching characteristics of 400V-to-800V boost converter constructed using a PSJ-FET grown on sapphire substrate and the future direction of GaN power semiconductor technology based on monolithic integration for advanced power electronics.

Published
2017

95. OP0111 Tocilizumab discontinuation after attaining remission in patients with rheumatoid arthritis who were treated with tocilizumab alone or in combination with methotrexate: results from a prospective, randomised, controlled study (THE SECOND YEAR OF THE SURPRISE STUDY)

Author

Kaneko, Y., primary, Kato, M., additional, Tanaka, Y., additional, Inoo, M., additional, Kobayashi-Haraoka, H., additional, Amano, K., additional, Miyata, M., additional, Murakawa, Y., additional, Yasuoka, H., additional, Hirata, S., additional, Tanaka, E., additional, Miyasaka, N., additional, Yamanaka, H., additional, Yamamoto, K., additional, and Takeuchi, T., additional

Published
2018
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98. PHARMACOKINETICS AND PHARMACODYNAMICS OF METHOTREXATE POLYGLUTAMATE IN PATIENTS WITH RHEUMATOID ARTHRITIS TREATED WITH LOW OR HIGH DOSE-METHOTREXATE IN COMBINATION WITH ADALIMUMAB: RESULTS FROM THE MIRACLE TRIAL.

Author

Tamai, H., Ikeda, K., Miyamoto, T., Taguchi, H., Kuo, C. F., Shin, K., Hirata, S., Okano, Y., Sato, S., Yasuoka, H., Choi, I. A., Park, S. H., Weng, M. Y., Kuwana, M., Lee, Y. J., Ishii, T., Kim, J., Kameda, H., Kojima, T., and Baek, H. J.

Published
2023
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