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2,154 results on '"WATANABE, Hiroki"'

1. VELLET: Verifiable Embedded Wallet for Securing Authenticity and Integrity

Author

Watanabe, Hiroki, Ichihara, Kohei, and Aita, Takumi

Subjects
Computer Science - Cryptography and Security, Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

The blockchain ecosystem, particularly with the rise of Web3 and Non-Fungible Tokens (NFTs), has experienced a significant increase in users and applications. However, this expansion is challenged by the need to connect early adopters with a wider user base. A notable difficulty in this process is the complex interfaces of blockchain wallets, which can be daunting for those familiar with traditional payment methods. To address this issue, the category of "embedded wallets" has emerged as a promising solution. These wallets are seamlessly integrated into the front-end of decentralized applications (Dapps), simplifying the onboarding process for users and making access more widely available. However, our insights indicate that this simplification introduces a trade-off between ease of use and security. Embedded wallets lack transparency and auditability, leading to obscured transactions by the front end and a pronounced risk of fraud and phishing attacks. This paper proposes a new protocol to enhance the security of embedded wallets. Our VELLET protocol introduces a wallet verifier that can match the audit trail of embedded wallets on smart contracts, incorporating a process to verify authenticity and integrity. In the implementation architecture of the VELLET protocol, we suggest using the Text Record feature of the Ethereum Name Service (ENS), known as a decentralized domain name service, to serve as a repository for managing the audit trails of smart contracts. This approach has been demonstrated to reduce the necessity for new smart contract development and operational costs, proving cost-effective through a proof-of-concept. This protocol is a vital step in reducing security risks associated with embedded wallets, ensuring their convenience does not undermine user security and trust., Comment: A shortened version is to be published at the IEEE International Conference on Blockchain and Cryptocurrency (ICBC) 2024

Published
2024

4. In-situ real-time observation of photo-induced nanoscale azo-polymer motions using high-speed atomic force microscopy combined with an inverted optical microscope

Author

Yang, Keishi, Chan, Feng-Yueh, Watanabe, Hiroki, Yoshioka, Shingo, Inouye, Yasushi, Uchihashi, Takayuki, Ishitobi, Hidekazu, Verma, Prabhat, and Umakoshi, Takayuki

Subjects
Physics - Optics, Physics - Chemical Physics
Abstract

High-speed atomic force microscopy (HS-AFM) is an indispensable technique in the biological field owing to its excellent imaging capability for the real-time observation of biomolecules with high spatial resolution. Furthermore, recent developments have established a tip-scan stand-alone HS-AFM that can be combined with an optical microscope, drastically improving its versatility for studying various complex phenomena. Although HS-AFM has mainly been used in biology, it has considerable potential to contribute to various research fields. One of the great candidates is a photoactive material, such as an azo-polymer, which plays a vital role in multiple optical applications because of its unique nanoscale motion under light irradiation. In this study, we demonstrate the in-situ real-time observation of nanoscale azo-polymer motion by combining tip-scan HS-AFM with an optical system, allowing HS-AFM observations precisely aligned with a tightly focused laser position. We successfully observed the dynamic evolution of unique morphologies in azo-polymer films, attributed to photoinduced nano-movements. Moreover, real-time topographic line profile analyses facilitated precise and quantitative investigations of morphological changes, which provided novel insights into the deformation mechanism. This significant demonstration would pave the way for the application of HS-AFM in wide research fields, from biology to material science and physical chemistry.

Published
2023

8. Evaluation of Ionization Efficiency in a Carbon Dioxide Hall Thruster by 0-D Discharge Simulation

Author

Tokuda, Shu, Cho, Shinatora, Watanabe, Hiroki, Ohkawa, Yasushi, Matsui, Makoto, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Ono, Yukinori, editor, and Kondoh, Jun, editor

Published
2024
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9. Effects of Magnetic Field Configuration on the Performance of 100 W-Class Hall Thruster Using Carbon Dioxide

Author

Tsuchikawa, Seiya, Watanabe, Hiroki, Cho, Shinatora, Ohkawa, Yasushi, Matsui, Makoto, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Ono, Yukinori, editor, and Kondoh, Jun, editor

Published
2024
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10. Prognostic value of E/e’ ratio and its change over time in ST-segment elevation myocardial infarction with preserved left ventricular ejection fraction in the reperfusion era

Author

Miyake, Makoto, Izumi, Chisato, Watanabe, Hiroki, Ozasa, Neiko, Morimoto, Takeshi, Matsutani, Hayato, Takahashi, Shuichi, Ohtani, Yuya, Baba, Megumi, Sakamoto, Jiro, Tamaki, Yodo, Enomoto, Soichiro, Kondo, Hirokazu, Tamura, Toshihiro, Nakagawa, Yoshihisa, and Kimura, Takeshi

Published
2024
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12. Quantification of escape from X chromosome inactivation with single-cell omics data reveals heterogeneity across cell types and tissues

Author

Charoensawan, Varodom, Hon, Chung-Chau, Majumder, Partha P., Matangkasombut, Ponpan, Park, Woong-Yang, Prabhakar, Shyam, Shin, Jay W., Carninci, Piero, Chambers, John C., Loh, Marie, Pithukpakorn, Manop, Suktitipat, Bhoom, Yamamoto, Kazuhiko, Rajagopalan, Deepa, Rayan, Nirmala Arul, Sankaran, Shvetha, Chantaraamporn, Juthamard, Chatterjee, Ankita, Ghosh, Supratim, Han, Kyung Yeon, Jevapatarakul, Damita, Nguantad, Sarintip, Sarkar, Sumanta, Thungsatianpun, Narita, Abe, Mai, Furukawa, Seiko, Inoue, Gyo, Myouzen, Keiko, Oh, Jin-Mi, Suzuki, Akari, Ando, Yoshinari, Kojima, Miki, Kouno, Tsukasa, Lim, Jinyeong, Maitra, Arindam, Tan, Le Min, Venkatesh, Prasanna Nori, Choi, Murim, Park, Jong-Eun, Buyamin, Eliora Violain, Kock, Kian Hong, Xuan Lin, Quy Xiao, Moody, Jonathan, Sonthalia, Radhika, Ishigaki, Kazuyoshi, Nakano, Masahiro, Okada, Yukinori, Tomofuji, Yoshihiko, Ho Namkoong, Edahiro, Ryuya, Takano, Tomomi, Nishihara, Hiroshi, Shirai, Yuya, Sonehara, Kyuto, Tanaka, Hiromu, Azekawa, Shuhei, Mikami, Yohei, Lee, Ho, Hasegawa, Takanori, Okudela, Koji, Okuzaki, Daisuke, Motooka, Daisuke, Kanai, Masahiro, Naito, Tatsuhiko, Yamamoto, Kenichi, Wang, Qingbo S., Saiki, Ryunosuke, Ishihara, Rino, Matsubara, Yuta, Hamamoto, Junko, Hayashi, Hiroyuki, Yoshimura, Yukihiro, Tachikawa, Natsuo, Yanagita, Emmy, Hyugaji, Takayoshi, Shimizu, Eigo, Katayama, Kotoe, Kato, Yasuhiro, Morita, Takayoshi, Takahashi, Kazuhisa, Harada, Norihiro, Naito, Toshio, Hiki, Makoto, Matsushita, Yasushi, Takagi, Haruhi, Aoki, Ryousuke, Nakamura, Ai, Harada, Sonoko, Sasano, Hitoshi, Kabata, Hiroki, Masaki, Katsunori, Kamata, Hirofumi, Ikemura, Shinnosuke, Chubachi, Shotaro, Okamori, Satoshi, Terai, Hideki, Morita, Atsuho, Asakura, Takanori, Sasaki, Junichi, Morisaki, Hiroshi, Uwamino, Yoshifumi, Nanki, Kosaku, Uchida, Sho, Uno, Shunsuke, Nishimura, Tomoyasu, Ishiguro, Takashi, Isono, Taisuke, Shibata, Shun, Matsui, Yuma, Hosoda, Chiaki, Takano, Kenji, Nishida, Takashi, Kobayashi, Yoichi, Takaku, Yotaro, Takayanagi, Noboru, Ueda, Soichiro, Tada, Ai, Miyawaki, Masayoshi, Yamamoto, Masaomi, Yoshida, Eriko, Hayashi, Reina, Nagasaka, Tomoki, Arai, Sawako, Kaneko, Yutaro, Sasaki, Kana, Tagaya, Etsuko, Kawana, Masatoshi, Arimura, Ken, Takahashi, Kunihiko, Anzai, Tatsuhiko, Ito, Satoshi, Endo, Akifumi, Uchimura, Yuji, Miyazaki, Yasunari, Honda, Takayuki, Tateishi, Tomoya, Tohda, Shuji, Ichimura, Naoya, Sonobe, Kazunari, Sassa, Chihiro Tani, Nakajima, Jun, Nakano, Yasushi, Nakajima, Yukiko, Anan, Ryusuke, Arai, Ryosuke, Kurihara, Yuko, Harada, Yuko, Nishio, Kazumi, Ueda, Tetsuya, Azuma, Masanori, Saito, Ryuichi, Sado, Toshikatsu, Miyazaki, Yoshimune, Sato, Ryuichi, Haruta, Yuki, Nagasaki, Tadao, Yasui, Yoshinori, Hasegawa, Yoshinori, Mutoh, Yoshikazu, Kimura, Tomoki, Sato, Tomonori, Takei, Reoto, Hagimoto, Satoshi, Noguchi, Yoichiro, Yamano, Yasuhiko, Sasano, Hajime, Ota, Sho, Nakamori, Yasushi, Yoshiya, Kazuhisa, Saito, Fukuki, Yoshihara, Tomoyuki, Wada, Daiki, Iwamura, Hiromu, Kanayama, Syuji, Maruyama, Shuhei, Yoshiyama, Takashi, Ohta, Ken, Kokuto, Hiroyuki, Ogata, Hideo, Tanaka, Yoshiaki, Arakawa, Kenichi, Shimoda, Masafumi, Osawa, Takeshi, Tateno, Hiroki, Hase, Isano, Yoshida, Shuichi, Suzuki, Shoji, Kawada, Miki, Horinouchi, Hirohisa, Saito, Fumitake, Mitamura, Keiko, Hagihara, Masao, Ochi, Junichi, Uchida, Tomoyuki, Baba, Rie, Arai, Daisuke, Ogura, Takayuki, Takahashi, Hidenori, Hagiwara, Shigehiro, Nagao, Genta, Konishi, Shunichiro, Nakachi, Ichiro, Murakami, Koji, Yamada, Mitsuhiro, Sugiura, Hisatoshi, Sano, Hirohito, Matsumoto, Shuichiro, Kimura, Nozomu, Ono, Yoshinao, Baba, Hiroaki, Suzuki, Yusuke, Nakayama, Sohei, Masuzawa, Keita, Namba, Shinichi, Suzuki, Ken, Naito, Yoko, Liu, Yu-Chen, Takuwa, Ayako, Sugihara, Fuminori, Wing, James B., Sakakibara, Shuhei, Hizawa, Nobuyuki, Shiroyama, Takayuki, Miyawaki, Satoru, Kawamura, Yusuke, Nakayama, Akiyoshi, Matsuo, Hirotaka, Yuichi, Maeda, Nii, Takuro, Noda, Yoshimi, Niitsu, Takayuki, Adachi, Yuichi, Enomoto, Takatoshi, Amiya, Saori, Hara, Reina, Yamaguchi, Yuta, Murakami, Teruaki, Kuge, Tomoki, Matsumoto, Kinnosuke, Yamamoto, Yuji, Yamamoto, Makoto, Yoneda, Midori, Kishikawa, Toshihiro, Yamada, Shuhei, Kawabata, Shuhei, Kijima, Noriyuki, Takagaki, Masatoshi, Sasa, Noah, Ueno, Yuya, Suzuki, Motoyuki, Takemoto, Norihiko, Eguchi, Hirotaka, Fukusumi, Takahito, Imai, Takao, Fukushima, Munehisa, Kishima, Haruhiko, Inohara, Hidenori, Tomono, Kazunori, Kato, Kazuto, Takahashi, Meiko, Matsuda, Fumihiko, Hirata, Haruhiko, Takeda, Yoshito, Koh, Hidefumi, Manabe, Tadashi, Funatsu, Yohei, Ito, Fumimaro, Fukui, Takahiro, Shinozuka, Keisuke, Kohashi, Sumiko, Miyazaki, Masatoshi, Shoko, Tomohisa, Kojima, Mitsuaki, Adachi, Tomohiro, Ishikawa, Motonao, Takahashi, Kenichiro, Inoue, Takashi, Hirano, Toshiyuki, Kobayashi, Keigo, Takaoka, Hatsuyo, Watanabe, Kazuyoshi, Miyazawa, Naoki, Kimura, Yasuhiro, Sado, Reiko, Sugimoto, Hideyasu, Kamiya, Akane, Kuwahara, Naota, Fujiwara, Akiko, Matsunaga, Tomohiro, Sato, Yoko, Okada, Takenori, Hirai, Yoshihiro, Kawashima, Hidetoshi, Narita, Atsuya, Niwa, Kazuki, Sekikawa, Yoshiyuki, Nishi, Koichi, Nishitsuji, Masaru, Tani, Mayuko, Suzuki, Junya, Nakatsumi, Hiroki, Ogura, Takashi, Kitamura, Hideya, Hagiwara, Eri, Murohashi, Kota, Okabayashi, Hiroko, Mochimaru, Takao, Nukaga, Shigenari, Satomi, Ryosuke, Oyamada, Yoshitaka, Mori, Nobuaki, Baba, Tomoya, Fukui, Yasutaka, Odate, Mitsuru, Mashimo, Shuko, Makino, Yasushi, Yagi, Kazuma, Hashiguchi, Mizuha, Kagyo, Junko, Shiomi, Tetsuya, Fuke, Satoshi, Saito, Hiroshi, Tsuchida, Tomoya, Fujitani, Shigeki, Takita, Mumon, Morikawa, Daiki, Yoshida, Toru, Izumo, Takehiro, Inomata, Minoru, Kuse, Naoyuki, Awano, Nobuyasu, Tone, Mari, Ito, Akihiro, Nakamura, Yoshihiko, Hoshino, Kota, Maruyama, Junichi, Ishikura, Hiroyasu, Takata, Tohru, Odani, Toshio, Amishima, Masaru, Hattori, Takeshi, Shichinohe, Yasuo, Kagaya, Takashi, Kita, Toshiyuki, Ohta, Kazuhide, Sakagami, Satoru, Koshida, Kiyoshi, Hayashi, Kentaro, Shimizu, Tetsuo, Kozu, Yutaka, Hiranuma, Hisato, Gon, Yasuhiro, Izumi, Namiki, Nagata, Kaoru, Ueda, Ken, Taki, Reiko, Hanada, Satoko, Kawamura, Kodai, Ichikado, Kazuya, Nishiyama, Kenta, Muranaka, Hiroyuki, Nakamura, Kazunori, Hashimoto, Naozumi, Wakahara, Keiko, Koji, Sakamoto, Omote, Norihito, Ando, Akira, Kodama, Nobuhiro, Kaneyama, Yasunari, Shunsuke, Maeda, Kuraki, Takashige, Matsumoto, Takemasa, Yokote, Koutaro, Nakada, Taka-Aki, Abe, Ryuzo, Oshima, Taku, Shimada, Tadanaga, Harada, Masahiro, Takahashi, Takeshi, Ono, Hiroshi, Sakurai, Toshihiro, Shibusawa, Takayuki, Kimizuka, Yoshifumi, Kawana, Akihiko, Sano, Tomoya, Watanabe, Chie, Suematsu, Ryohei, Sageshima, Hisako, Yoshifuji, Ayumi, Ito, Kazuto, Takahashi, Saeko, Ishioka, Kota, Nakamura, Morio, Masuda, Makoto, Wakabayashi, Aya, Watanabe, Hiroki, Ueda, Suguru, Nishikawa, Masanori, Chihara, Yusuke, Takeuchi, Mayumi, Onoi, Keisuke, Shinozuka, Jun, Sueyoshi, Atsushi, Nagasaki, Yoji, Okamoto, Masaki, Ishihara, Sayoko, Shimo, Masatoshi, Tokunaga, Yoshihisa, Kusaka, Yu, Ohba, Takehiko, Isogai, Susumu, Ogawa, Aki, Inoue, Takuya, Fukuyama, Satoru, Eriguchi, Yoshihiro, Yonekawa, Akiko, Kan-o, Keiko, Matsumoto, Koichiro, Kanaoka, Kensuke, Ihara, Shoichi, Komuta, Kiyoshi, Inoue, Yoshiaki, Chiba, Shigeru, Yamagata, Kunihiro, Hiramatsu, Yuji, Kai, Hirayasu, Asano, Koichiro, Oguma, Tsuyoshi, Ito, Yoko, Hashimoto, Satoru, Yamasaki, Masaki, Kasamatsu, Yu, Komase, Yuko, Hida, Naoya, Tsuburai, Takahiro, Oyama, Baku, Takada, Minoru, Kanda, Hidenori, Kitagawa, Yuichiro, Fukuta, Tetsuya, Miyake, Takahito, Yoshida, Shozo, Ogura, Shinji, Abe, Shinji, Kono, Yuta, Togashi, Yuki, Takoi, Hiroyuki, Kikuchi, Ryota, Ogawa, Shinichi, Ogata, Tomouki, Ishihara, Shoichiro, Kanehiro, Arihiko, Ozaki, Shinji, Fuchimoto, Yasuko, Wada, Sae, Fujimoto, Nobukazu, Nishiyama, Kei, Terashima, Mariko, Beppu, Satoru, Yoshida, Kosuke, Narumoto, Osamu, Nagai, Hideaki, Ooshima, Nobuharu, Motegi, Mitsuru, Umeda, Akira, Miyagawa, Kazuya, Shimada, Hisato, Endo, Mayu, Ohira, Yoshiyuki, Watanabe, Masafumi, Inoue, Sumito, Igarashi, Akira, Sato, Masamichi, Sagara, Hironori, Tanaka, Akihiko, Ohta, Shin, Kimura, Tomoyuki, Shibata, Yoko, Tanino, Yoshinori, Nikaido, Takefumi, Minemura, Hiroyuki, Sato, Yuki, Yamada, Yuichiro, Hashino, Takuya, Shinoki, Masato, Iwagoe, Hajime, Takahashi, Hiroshi, Fujii, Kazuhiko, Kishi, Hiroto, Kanai, Masayuki, Imamura, Tomonori, Yamashita, Tatsuya, Yatomi, Masakiyo, Maeno, Toshitaka, Hayashi, Shinichi, Takahashi, Mai, Kuramochi, Mizuki, Kamimaki, Isamu, Tominaga, Yoshiteru, Ishii, Tomoo, Utsugi, Mitsuyoshi, Ono, Akihiro, Tanaka, Toru, Kashiwada, Takeru, Fujita, Kazue, Saito, Yoshinobu, Seike, Masahiro, Watanabe, Hiroko, Matsuse, Hiroto, Kodaka, Norio, Nakano, Chihiro, Oshio, Takeshi, Hirouchi, Takatomo, Makino, Shohei, Egi, Moritoki, Omae, Yosuke, Nannya, Yasuhito, Ueno, Takafumi, Katayama, Kazuhiko, Ai, Masumi, Fukui, Yoshinori, Kumanogoh, Atsushi, Sato, Toshiro, Hasegawa, Naoki, Tokunaga, Katsushi, Ishii, Makoto, Koike, Ryuji, Kitagawa, Yuko, Kimura, Akinori, Imoto, Seiya, Miyano, Satoru, Ogawa, Seishi, Kanai, Takanori, Fukunaga, Koichi, Takeshima, Yusuke, Tanaka, Kentaro, Koichi Matsuda, Yamanashi, Yuji, Furukawa, Yoichi, Morisaki, Takayuki, Murakami, Yoshinori, Kamatani, Yoichiro, Muto, Kaori, Nagai, Akiko, Nakamura, Yusuke, Obara, Wataru, Yamaji, Ken, Asai, Satoshi, Takahashi, Yasuo, Higashiue, Shinichi, Kobayashi, Shuzo, Yamaguchi, Hiroki, Nagata, Yasunobu, Wakita, Satoshi, Nito, Chikako, Iwasaki, Yu-ki, Murayama, Shigeo, Yoshimori, Kozo, Miki, Yoshio, Obata, Daisuke, Higashiyama, Masahiko, Masumoto, Akihide, Koga, Yoshinobu, Koretsune, Yukihiro, Yata, Tomohiro, Ogawa, Kotaro, Namkoong, Ho, Okuno, Tatsusada, Liu, Boxiang, Matsuda, Koichi, and Mochizuki, Hideki

Published
2024
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15. MEGADOCK-Web-Mito: human mitochondrial protein-protein interaction prediction database

Author

Ohue, Masahito, Watanabe, Hiroki, and Akiyama, Yutaka

Subjects
Quantitative Biology - Biomolecules, Quantitative Biology - Molecular Networks
Abstract

Mitochondrial diseases are largely caused by dysfunction in mitochondrial proteins. However, annotations of human mitochondrial proteins are scattered across various public databases and individual studies. To facilitate research aimed at elucidating mitochondrial functions, we constructed the MEGADOCK-Web-Mito database as a protein-protein interaction (PPI) prediction data archive, including prediction results for exhaustive protein pairs of 654 mitochondria-related human proteins. MEGADOCK-Web-Mito enables users to search for all PPI prediction results efficiently and comprehensively. In particular, we linked functional annotations to each human mitochondrial protein. The comprehensive and specialized human mitochondrial PPI prediction results and searching function of MEGADOCK-Web-Mito will support further research on mitochondria and mitochondrial diseases., Comment: 12 pages, 6 figures

Published
2021

16. Dry ice propellant for electric propulsion with triple-point storage

Author

Maki, Tatsuro, Kinefuchi, Kiyoshi, Cho, Shinatora, Watanabe, Hiroki, Maki, Tatsuro, Kinefuchi, Kiyoshi, Cho, Shinatora, and Watanabe, Hiroki

Abstract

Dry ice has been proposed as a propellant for electric propulsion, as its use may facilitate the realization of a low-cost propulsion system compared to that based on a xenon propellant. In addition, dry ice can be obtained from space (e.g., from the atmosphere of Mars) and human exhalation. This study thus conducted experiments with dry ice storage and carbon dioxide gas supply using triple-point storage. With this method, a constant tank pressure and flow rate was achieved without the application of regulators or control valves. However, the triple-point state was unexpectedly halted, even though solid dry ice remained in the tank. An internal visual observation revealed that the solid phase was surrounded by the liquid phase, which prevented the solid phase from melting. Therefore, heat conduction fins were installed in the tank to enhance the melting process, which successfully extended the triple-point duration. The supply system was applied successfully to the operation of a 1 kW Hall thruster. Furthermore, a mathematical model for estimating the phase characteristics in the tank was developed, with an in-orbit operation analyzed based on the experimental results. The heat input to the tank and the mass flow rate or enthalpy to the thruster determined the phase characteristics in the tank, which means that implementing a thermal design that considers the flow rate to the thruster is crucial. The simulation demonstrated that dry ice can be consumed by controlling the three phases in the tank using an electrical heater. A gas phase separator concept consisting of the heat conduction fins and capillary screen mesh was proposed for orbital microgravity operation.

Published
2025

17. Impact of respiratory bacterial infections on mortality in Japanese patients with COVID-19: a retrospective cohort study

Author

Nakagawara, Kensuke, Kamata, Hirofumi, Chubachi, Shotaro, Namkoong, Ho, Tanaka, Hiromu, Lee, Ho, Otake, Shiro, Fukushima, Takahiro, Kusumoto, Tatsuya, Morita, Atsuho, Azekawa, Shuhei, Watase, Mayuko, Asakura, Takanori, Masaki, Katsunori, Ishii, Makoto, Endo, Akifumi, Koike, Ryuji, Ishikura, Hiroyasu, Takata, Tohru, Matsushita, Yasushi, Harada, Norihiro, Kokutou, Hiroyuki, Yoshiyama, Takashi, Kataoka, Kensuke, Mutoh, Yoshikazu, Miyawaki, Masayoshi, Ueda, Soichiro, Ono, Hiroshi, Ono, Takuya, Shoko, Tomohisa, Muranaka, Hiroyuki, Kawamura, Kodai, Mori, Nobuaki, Mochimaru, Takao, Fukui, Mototaka, Chihara, Yusuke, Nagasaki, Yoji, Okamoto, Masaki, Amishima, Masaru, Odani, Toshio, Tani, Mayuko, Nishi, Koichi, Shirai, Yuya, Edahiro, Ryuya, Ando, Akira, Hashimoto, Naozumi, Ogura, Shinji, Kitagawa, Yuichiro, Kita, Toshiyuki, Kagaya, Takashi, Kimura, Yasuhiro, Miyazawa, Naoki, Tsuchida, Tomoya, Fujitani, Shigeki, Murakami, Koji, Sano, Hirohito, Sato, Yuki, Tanino, Yoshinori, Otsuki, Ryo, Mashimo, Shuko, Kuramochi, Mizuki, Hosoda, Yasuo, Hasegawa, Yoshinori, Ueda, Tetsuya, Takaku, Yotaro, Ishiguro, Takashi, Fujiwara, Akiko, Kuwahara, Naota, Kitamura, Hideya, Hagiwara, Eri, Nakamori, Yasushi, Saito, Fukuki, Kono, Yuta, Abe, Shinji, Ishii, Tomoo, Ohba, Takehiko, Kusaka, Yu, Watanabe, Hiroko, Masuda, Makoto, Watanabe, Hiroki, Kimizuka, Yoshifumi, Kawana, Akihiko, Kasamatsu, Yu, Hashimoto, Satoru, Okada, Yukinori, Takano, Tomomi, Katayama, Kazuhiko, Ai, Masumi, Kumanogoh, Atsushi, Sato, Toshiro, Tokunaga, Katsushi, Imoto, Seiya, Kitagawa, Yuko, Kimura, Akinori, Miyano, Satoru, Hasegawa, Naoki, Ogawa, Seishi, Kanai, Takanori, and Fukunaga, Koichi

Published
2023
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21. SYNTAX Score and 1-Year Outcomes in the OPTIVUS-Complex PCI Study Multivessel Cohort

Author

Gohbara, Masaomi, Hibi, Kiyoshi, Morimoto, Takeshi, Kirigaya, Hidekuni, Yamamoto, Ko, Ono, Koh, Shiomi, Hiroki, Ohya, Masanobu, Yamaji, Kyohei, Watanabe, Hiroki, Amano, Tetsuya, Morino, Yoshihiro, Takagi, Kensuke, Honye, Junko, Matsuo, Hitoshi, Abe, Mitsuru, Kadota, Kazushige, Ando, Kenji, Nakao, Kouichi, Sonoda, Shinjo, Suwa, Satoru, Kawai, Kazuya, Kozuma, Ken, Nakagawa, Yoshihisa, Ikari, Yuji, Nanasato, Mamoru, Hanaoka, Keiichi, Tanabe, Kengo, Hata, Yoshiki, Akasaka, Takashi, and Kimura, Takeshi

Published
2023
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22. Single-Session Versus Staged Multivessel Optimal IVUS-Guided PCI in Patients With CCS or NSTE-ACS

Author

Yamamoto, Ko, Shiomi, Hiroki, Morimoto, Takeshi, Miyazawa, Akiyoshi, Watanabe, Hiroki, Nakamura, Sunao, Suwa, Satoru, Domei, Takenori, Ono, Koh, Sakamoto, Hiroki, Shigetoshi, Masataka, Taniguchi, Ryoji, Okayama, Hideki, Toyota, Toshiaki, Yokomatsu, Takafumi, Muto, Masahiro, Kawaguchi, Ren, Kishi, Koichi, Hadase, Mitsuyoshi, Fujita, Tsutomu, Nishida, Yasunori, Nishino, Masami, Otake, Hiromasa, Natsuaki, Masahiro, Watanabe, Hirotoshi, Suematsu, Nobuhiro, Tanabe, Kengo, Abe, Mitsuru, Hibi, Kiyoshi, Kadota, Kazushige, Ando, Kenji, and Kimura, Takeshi

Published
2023
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23. Plume mode instability enhanced by emitter surface poisoning in hollow cathode.

Author

Suzuki, Atsuya, Cho, Shinatora, Watanabe, Hiroki, and Kinefuchi, Kiyoshi

Subjects
CATHODES, ELECTRON work function, PLASMA instabilities, ELECTRON emission, PLASMA stability, GLOW discharges, ELECTRON temperature, FIELD emission
Abstract

The unstable plume mode of hollow cathodes should be avoided in practical applications because it severely degrades the overall cathode lifetime. In this study, we investigate the spot-plume transition and plasma stability characteristics of an unused segmented lanthanum hexaboride emitter. The expansion of the unstable plume mode region is observed during a discharge experiment. Subsequently, the segmented emitter is retrieved, the inner surface of the emitter is observed, and the work function on the surface is measured at room temperature. The emitter surface exhibits color variations with oxygen and carbon detection. The downstream edge shows the original purple color and almost no degradation in the work function. The high temperature in this region promotes the desorption of carbon and oxygen. In the spot mode, this region mainly contributes to thermionic electron emission; therefore, the discharge voltage in the spot mode does not change during the discharge experiment. Carbon or carbide is detected in the middle of the axial direction on the emitter surface, where the surface temperature is not sufficiently high to desorb carbon during discharge. Based on the surface analysis results, the dominant substance in the region where carbon is detected was lanthanum carbide. An increase in the work function is indicated in the region, which appears to increase the plasma instability. According to previous studies, an increase in the work function results in a rise in the potential in the emitter, and an increase in the electron temperature in the outside plume region induces the plasma instability. Further investigation is needed to understand the mechanism connecting the rise in the work function and the rise in the electron temperature in the plume region. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Effects of Long-Term Carvedilol Therapy in Patients With ST-Segment Elevation Myocardial Infarction and Mildly Reduced Left Ventricular Ejection Fraction

Author

Amano, Masashi, Izumi, Chisato, Watanabe, Hiroki, Ozasa, Neiko, Morimoto, Takeshi, Bingyuan, Bao, Suwa, Satoru, Miyake, Makoto, Tamura, Toshihiro, Nakagawa, Yoshihisa, Kadota, Kazushige, Inuzuka, Yasutaka, Minamimoto, Yugo, Furukawa, Yutaka, Kaji, Shuichiro, Suzuki, Takahiko, Akao, Masaharu, Inada, Tsukasa, and Kimura, Takeshi

Published
2023
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28. Optimal Intravascular Ultrasound-Guided Percutaneous Coronary Intervention in Patients With Multivessel Disease

Author

Yamamoto, Ko, Shiomi, Hiroki, Morimoto, Takeshi, Watanabe, Hiroki, Miyazawa, Akiyoshi, Yamaji, Kyohei, Ohya, Masanobu, Nakamura, Sunao, Mitomo, Satoru, Suwa, Satoru, Domei, Takenori, Tatsushima, Shojiro, Ono, Koh, Sakamoto, Hiroki, Shimamura, Kiyotaka, Shigetoshi, Masataka, Taniguchi, Ryoji, Nishimoto, Yuji, Okayama, Hideki, Matsuda, Kensho, Yokomatsu, Takafumi, Muto, Masahiro, Kawaguchi, Ren, Kishi, Koichi, Hadase, Mitsuyoshi, Fujita, Tsutomu, Nishida, Yasunori, Nishino, Masami, Otake, Hiromasa, Tanabe, Kengo, Abe, Mitsuru, Hibi, Kiyoshi, Kadota, Kazushige, Ando, Kenji, and Kimura, Takeshi

Published
2023
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30. Clopidogrel Monotherapy After 1-Month DAPT in Patients With High Bleeding Risk or Complex PCI

Author

Yamamoto, Ko, Watanabe, Hirotoshi, Morimoto, Takeshi, Obayashi, Yuki, Natsuaki, Masahiro, Domei, Takenori, Yamaji, Kyohei, Suwa, Satoru, Isawa, Tsuyoshi, Watanabe, Hiroki, Yoshida, Ruka, Sakamoto, Hiroki, Akao, Masaharu, Hata, Yoshiki, Morishima, Itsuro, Tokuyama, Hideo, Yagi, Masahiro, Suzuki, Hiroshi, Wakabayashi, Kohei, Suematsu, Nobuhiro, Inada, Tsukasa, Tamura, Toshihiro, Okayama, Hideki, Abe, Mitsuru, Kawai, Kazuya, Nakao, Koichi, Ando, Kenji, Tanabe, Kengo, Ikari, Yuji, Morino, Yoshihiro, Kadota, Kazushige, Furukawa, Yutaka, Nakagawa, Yoshihisa, and Kimura, Takeshi

Published
2023
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31. Expanding the Positioning Area for Acoustic Localization Using COTS Mobile Devices

Author

Suzaki, Takumi, Nakamura, Masanari, Murakami, Hiroaki, Watanabe, Hiroki, Hashizume, Hiromichi, Sugimoto, Masanori, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin (Sherman), Editorial Board Member, Stan, Mircea, Editorial Board Member, Jia, Xiaohua, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Hara, Takahiro, editor, and Yamaguchi, Hirozumi, editor

Published
2022
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32. A Localization Method Using Reflected Luminance Distribution

Author

Yamashita, Yoshihiro, Shimada, Shota, Hashizume, Hiromichi, Watanabe, Hiroki, Sugimoto, Masanori, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin (Sherman), Editorial Board Member, Stan, Mircea, Editorial Board Member, Jia, Xiaohua, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Hara, Takahiro, editor, and Yamaguchi, Hirozumi, editor

Published
2022
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35. DOCK2 is involved in the host genetics and biology of severe COVID-19

Author

Namkoong, Ho, Edahiro, Ryuya, Takano, Tomomi, Nishihara, Hiroshi, Shirai, Yuya, Sonehara, Kyuto, Tanaka, Hiromu, Azekawa, Shuhei, Mikami, Yohei, Lee, Ho, Hasegawa, Takanori, Okudela, Koji, Okuzaki, Daisuke, Motooka, Daisuke, Kanai, Masahiro, Naito, Tatsuhiko, Yamamoto, Kenichi, Wang, Qingbo S., Saiki, Ryunosuke, Ishihara, Rino, Matsubara, Yuta, Hamamoto, Junko, Hayashi, Hiroyuki, Yoshimura, Yukihiro, Tachikawa, Natsuo, Yanagita, Emmy, Hyugaji, Takayoshi, Shimizu, Eigo, Katayama, Kotoe, Kato, Yasuhiro, Morita, Takayoshi, Takahashi, Kazuhisa, Harada, Norihiro, Naito, Toshio, Hiki, Makoto, Matsushita, Yasushi, Takagi, Haruhi, Aoki, Ryousuke, Nakamura, Ai, Harada, Sonoko, Sasano, Hitoshi, Kabata, Hiroki, Masaki, Katsunori, Kamata, Hirofumi, Ikemura, Shinnosuke, Chubachi, Shotaro, Okamori, Satoshi, Terai, Hideki, Morita, Atsuho, Asakura, Takanori, Sasaki, Junichi, Morisaki, Hiroshi, Uwamino, Yoshifumi, Nanki, Kosaku, Uchida, Sho, Uno, Shunsuke, Nishimura, Tomoyasu, Ishiguro, Takashi, Isono, Taisuke, Shibata, Shun, Matsui, Yuma, Hosoda, Chiaki, Takano, Kenji, Nishida, Takashi, Kobayashi, Yoichi, Takaku, Yotaro, Takayanagi, Noboru, Ueda, Soichiro, Tada, Ai, Miyawaki, Masayoshi, Yamamoto, Masaomi, Yoshida, Eriko, Hayashi, Reina, Nagasaka, Tomoki, Arai, Sawako, Kaneko, Yutaro, Sasaki, Kana, Tagaya, Etsuko, Kawana, Masatoshi, Arimura, Ken, Takahashi, Kunihiko, Anzai, Tatsuhiko, Ito, Satoshi, Endo, Akifumi, Uchimura, Yuji, Miyazaki, Yasunari, Honda, Takayuki, Tateishi, Tomoya, Tohda, Shuji, Ichimura, Naoya, Sonobe, Kazunari, Sassa, Chihiro Tani, Nakajima, Jun, Nakano, Yasushi, Nakajima, Yukiko, Anan, Ryusuke, Arai, Ryosuke, Kurihara, Yuko, Harada, Yuko, Nishio, Kazumi, Ueda, Tetsuya, Azuma, Masanori, Saito, Ryuichi, Sado, Toshikatsu, Miyazaki, Yoshimune, Sato, Ryuichi, Haruta, Yuki, Nagasaki, Tadao, Yasui, Yoshinori, Hasegawa, Yoshinori, Mutoh, Yoshikazu, Kimura, Tomoki, Sato, Tomonori, Takei, Reoto, Hagimoto, Satoshi, Noguchi, Yoichiro, Yamano, Yasuhiko, Sasano, Hajime, Ota, Sho, Nakamori, Yasushi, Yoshiya, Kazuhisa, Saito, Fukuki, Yoshihara, Tomoyuki, Wada, Daiki, Iwamura, Hiromu, Kanayama, Syuji, Maruyama, Shuhei, Yoshiyama, Takashi, Ohta, Ken, Kokuto, Hiroyuki, Ogata, Hideo, Tanaka, Yoshiaki, Arakawa, Kenichi, Shimoda, Masafumi, Osawa, Takeshi, Tateno, Hiroki, Hase, Isano, Yoshida, Shuichi, Suzuki, Shoji, Kawada, Miki, Horinouchi, Hirohisa, Saito, Fumitake, Mitamura, Keiko, Hagihara, Masao, Ochi, Junichi, Uchida, Tomoyuki, Baba, Rie, Arai, Daisuke, Ogura, Takayuki, Takahashi, Hidenori, Hagiwara, Shigehiro, Nagao, Genta, Konishi, Shunichiro, Nakachi, Ichiro, Murakami, Koji, Yamada, Mitsuhiro, Sugiura, Hisatoshi, Sano, Hirohito, Matsumoto, Shuichiro, Kimura, Nozomu, Ono, Yoshinao, Baba, Hiroaki, Suzuki, Yusuke, Nakayama, Sohei, Masuzawa, Keita, Namba, Shinichi, Suzuki, Ken, Naito, Yoko, Liu, Yu-Chen, Takuwa, Ayako, Sugihara, Fuminori, Wing, James B., Sakakibara, Shuhei, Hizawa, Nobuyuki, Shiroyama, Takayuki, Miyawaki, Satoru, Kawamura, Yusuke, Nakayama, Akiyoshi, Matsuo, Hirotaka, Maeda, Yuichi, Nii, Takuro, Noda, Yoshimi, Niitsu, Takayuki, Adachi, Yuichi, Enomoto, Takatoshi, Amiya, Saori, Hara, Reina, Yamaguchi, Yuta, Murakami, Teruaki, Kuge, Tomoki, Matsumoto, Kinnosuke, Yamamoto, Yuji, Yamamoto, Makoto, Yoneda, Midori, Kishikawa, Toshihiro, Yamada, Shuhei, Kawabata, Shuhei, Kijima, Noriyuki, Takagaki, Masatoshi, Sasa, Noah, Ueno, Yuya, Suzuki, Motoyuki, Takemoto, Norihiko, Eguchi, Hirotaka, Fukusumi, Takahito, Imai, Takao, Fukushima, Munehisa, Kishima, Haruhiko, Inohara, Hidenori, Tomono, Kazunori, Kato, Kazuto, Takahashi, Meiko, Matsuda, Fumihiko, Hirata, Haruhiko, Takeda, Yoshito, Koh, Hidefumi, Manabe, Tadashi, Funatsu, Yohei, Ito, Fumimaro, Fukui, Takahiro, Shinozuka, Keisuke, Kohashi, Sumiko, Miyazaki, Masatoshi, Shoko, Tomohisa, Kojima, Mitsuaki, Adachi, Tomohiro, Ishikawa, Motonao, Takahashi, Kenichiro, Inoue, Takashi, Hirano, Toshiyuki, Kobayashi, Keigo, Takaoka, Hatsuyo, Watanabe, Kazuyoshi, Miyazawa, Naoki, Kimura, Yasuhiro, Sado, Reiko, Sugimoto, Hideyasu, Kamiya, Akane, Kuwahara, Naota, Fujiwara, Akiko, Matsunaga, Tomohiro, Sato, Yoko, Okada, Takenori, Hirai, Yoshihiro, Kawashima, Hidetoshi, Narita, Atsuya, Niwa, Kazuki, Sekikawa, Yoshiyuki, Nishi, Koichi, Nishitsuji, Masaru, Tani, Mayuko, Suzuki, Junya, Nakatsumi, Hiroki, Ogura, Takashi, Kitamura, Hideya, Hagiwara, Eri, Murohashi, Kota, Okabayashi, Hiroko, Mochimaru, Takao, Nukaga, Shigenari, Satomi, Ryosuke, Oyamada, Yoshitaka, Mori, Nobuaki, Baba, Tomoya, Fukui, Yasutaka, Odate, Mitsuru, Mashimo, Shuko, Makino, Yasushi, Yagi, Kazuma, Hashiguchi, Mizuha, Kagyo, Junko, Shiomi, Tetsuya, Fuke, Satoshi, Saito, Hiroshi, Tsuchida, Tomoya, Fujitani, Shigeki, Takita, Mumon, Morikawa, Daiki, Yoshida, Toru, Izumo, Takehiro, Inomata, Minoru, Kuse, Naoyuki, Awano, Nobuyasu, Tone, Mari, Ito, Akihiro, Nakamura, Yoshihiko, Hoshino, Kota, Maruyama, Junichi, Ishikura, Hiroyasu, Takata, Tohru, Odani, Toshio, Amishima, Masaru, Hattori, Takeshi, Shichinohe, Yasuo, Kagaya, Takashi, Kita, Toshiyuki, Ohta, Kazuhide, Sakagami, Satoru, Koshida, Kiyoshi, Hayashi, Kentaro, Shimizu, Tetsuo, Kozu, Yutaka, Hiranuma, Hisato, Gon, Yasuhiro, Izumi, Namiki, Nagata, Kaoru, Ueda, Ken, Taki, Reiko, Hanada, Satoko, Kawamura, Kodai, Ichikado, Kazuya, Nishiyama, Kenta, Muranaka, Hiroyuki, Nakamura, Kazunori, Hashimoto, Naozumi, Wakahara, Keiko, Sakamoto, Koji, Omote, Norihito, Ando, Akira, Kodama, Nobuhiro, Kaneyama, Yasunari, Maeda, Shunsuke, Kuraki, Takashige, Matsumoto, Takemasa, Yokote, Koutaro, Nakada, Taka-Aki, Abe, Ryuzo, Oshima, Taku, Shimada, Tadanaga, Harada, Masahiro, Takahashi, Takeshi, Ono, Hiroshi, Sakurai, Toshihiro, Shibusawa, Takayuki, Kimizuka, Yoshifumi, Kawana, Akihiko, Sano, Tomoya, Watanabe, Chie, Suematsu, Ryohei, Sageshima, Hisako, Yoshifuji, Ayumi, Ito, Kazuto, Takahashi, Saeko, Ishioka, Kota, Nakamura, Morio, Masuda, Makoto, Wakabayashi, Aya, Watanabe, Hiroki, Ueda, Suguru, Nishikawa, Masanori, Chihara, Yusuke, Takeuchi, Mayumi, Onoi, Keisuke, Shinozuka, Jun, Sueyoshi, Atsushi, Nagasaki, Yoji, Okamoto, Masaki, Ishihara, Sayoko, Shimo, Masatoshi, Tokunaga, Yoshihisa, Kusaka, Yu, Ohba, Takehiko, Isogai, Susumu, Ogawa, Aki, Inoue, Takuya, Fukuyama, Satoru, Eriguchi, Yoshihiro, Yonekawa, Akiko, Kan-o, Keiko, Matsumoto, Koichiro, Kanaoka, Kensuke, Ihara, Shoichi, Komuta, Kiyoshi, Inoue, Yoshiaki, Chiba, Shigeru, Yamagata, Kunihiro, Hiramatsu, Yuji, Kai, Hirayasu, Asano, Koichiro, Oguma, Tsuyoshi, Ito, Yoko, Hashimoto, Satoru, Yamasaki, Masaki, Kasamatsu, Yu, Komase, Yuko, Hida, Naoya, Tsuburai, Takahiro, Oyama, Baku, Takada, Minoru, Kanda, Hidenori, Kitagawa, Yuichiro, Fukuta, Tetsuya, Miyake, Takahito, Yoshida, Shozo, Ogura, Shinji, Abe, Shinji, Kono, Yuta, Togashi, Yuki, Takoi, Hiroyuki, Kikuchi, Ryota, Ogawa, Shinichi, Ogata, Tomouki, Ishihara, Shoichiro, Kanehiro, Arihiko, Ozaki, Shinji, Fuchimoto, Yasuko, Wada, Sae, Fujimoto, Nobukazu, Nishiyama, Kei, Terashima, Mariko, Beppu, Satoru, Yoshida, Kosuke, Narumoto, Osamu, Nagai, Hideaki, Ooshima, Nobuharu, Motegi, Mitsuru, Umeda, Akira, Miyagawa, Kazuya, Shimada, Hisato, Endo, Mayu, Ohira, Yoshiyuki, Watanabe, Masafumi, Inoue, Sumito, Igarashi, Akira, Sato, Masamichi, Sagara, Hironori, Tanaka, Akihiko, Ohta, Shin, Kimura, Tomoyuki, Shibata, Yoko, Tanino, Yoshinori, Nikaido, Takefumi, Minemura, Hiroyuki, Sato, Yuki, Yamada, Yuichiro, Hashino, Takuya, Shinoki, Masato, Iwagoe, Hajime, Takahashi, Hiroshi, Fujii, Kazuhiko, Kishi, Hiroto, Kanai, Masayuki, Imamura, Tomonori, Yamashita, Tatsuya, Yatomi, Masakiyo, Maeno, Toshitaka, Hayashi, Shinichi, Takahashi, Mai, Kuramochi, Mizuki, Kamimaki, Isamu, Tominaga, Yoshiteru, Ishii, Tomoo, Utsugi, Mitsuyoshi, Ono, Akihiro, Tanaka, Toru, Kashiwada, Takeru, Fujita, Kazue, Saito, Yoshinobu, Seike, Masahiro, Watanabe, Hiroko, Matsuse, Hiroto, Kodaka, Norio, Nakano, Chihiro, Oshio, Takeshi, Hirouchi, Takatomo, Makino, Shohei, Egi, Moritoki, Omae, Yosuke, Nannya, Yasuhito, Ueno, Takafumi, Katayama, Kazuhiko, Ai, Masumi, Fukui, Yoshinori, Kumanogoh, Atsushi, Sato, Toshiro, Hasegawa, Naoki, Tokunaga, Katsushi, Ishii, Makoto, Koike, Ryuji, Kitagawa, Yuko, Kimura, Akinori, Imoto, Seiya, Miyano, Satoru, Ogawa, Seishi, Kanai, Takanori, Fukunaga, Koichi, and Okada, Yukinori

Published
2022
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36. Niji: Bitcoin Bridge Utilizing Payment Channels

Author

Watanabe, Hiroki, Ohashi, Shigenori, Fujimura, Shigeru, Nakadaira, Atsushi, Hidaka, Kota, and Kishigami, Jay

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

Bitcoin's enormous success has inspired the development of alternative blockchains, such as consortium chains. Several cross-chain protocols have been proposed as ways of connecting these universes of individual blockchains in a distributed and secure manner. In this paper, we present Niji, a new cross-chain protocol that allows parties to perform virtual Bitcoin payment securely on a consortium chain, without any trusted third-party or mediators. Our work focuses on the issue that it is difficult for a consortium chain's token to hold a stable market value, and Niji makes it possible for smart contract services to acquire means of payment in the consortium chain. With the Bitcoin payment channel built on the consortium chain, the process from payment to service provision runs autonomously without any interaction between parties. Niji introduces the concept of a transaction template to validate Bitcoin payments efficiently on different blockchains, and it allows a service provider to delegate all of its tasks for verifying state updates to a smart contract on the consortium chain. We also propose a novel bi-directional payment channel adapted for design of the Niji protocol, which can update payments non-interactively between parties. We implemented a prototype of the Niji protocol and conducted an experiment measuring the computational cost and latency that demonstrates the protocol's feasibility on practical platforms., Comment: Presented at Scaling Bitcoin 2018

Published
2018

39. Modifiers of the Risk of Diabetes for Long-Term Outcomes After Coronary Revascularization: CREDO-Kyoto PCI/CABG Registry

Author

Kimura, Takeshi, Shiomi, Hiroki, Matsuda, Mitsuo, Takeuchi, Yuzo, Mitsuoka, Hirokazu, Uegaito, Takashi, Nakagawa, Yoshihisa, Tamura, Toshihiro, Konishi, Takashi, Ootani, Seiji, Fujiwara, Hisayoshi, Takatsu, Yoshiki, Sato, Yukihito, Taniguchi, Ryoji, Kataoka, Kazuaki, Inoko, Moriaki, Nohara, Ryuji, Nakano, Kimisato, Miyamoto, Syoichi, Kunihiko, Nagai, Murakami, Tomoyuki, Takeda, Teruki, Ishida, Katsuya, Nobuyoshi, Masakiyo, Yamaji, Kyohei, Yasumoto, Hitoshi, Iwabuchi, Masashi, Ando, Kenji, Domei, Takenori, Kato, Masayuki, Tatami, Ryozo, Shirotani, Manabu, Hattori, Ryuichi, Kita, Toru, Furukawa, Yutaka, Ehara, Natsuhiko, Kihara, Yasuki, Eizawa, Hiroshi, Kato, Hiroshi, Ishii, Katsuhisa, Aoyama, Takeshi, Sakurai, Takahiro, Kawanami, Masaki, Suyama, Tamaki, Tada, Eiji, Tanaka, Masaru, Inada, Tsukasa, Uzui, Hiroyasu, Nakano, Akira, Lee, Jong-Dae, Onodera, Tomoya, Takizawa, Akinori, Ryuzo, Nawada, Shinoda, Eiji, Takahashi, Masaaki, Yamada, Miho, Horie, Minoru, Yamamoto, Takashi, Takashima, Hiroyuki, Sakai, Hiroshi, Tamura, Takashi, Toyofuku, Mamoru, Kotoura, Hajime, Miura, Akira, Takahashi, Mamoru, Matoba, Yoshiki, Takumi, Takuro, Tei, Chuwa, Hamasaki, Shuichi, Doi, Osamu, Kambara, Hirofumi, Kaburagi, Satoshi, Sakamoto, Hiroki, Tada, Tomohisa, Mitsudo, Kazuaki, Kadota, Kazushige, Tada, Takeshi, Miki, Shinji, Mizoguchi, Tetsu, Akira, Yoshida, Kaneda, Kazuhisa, Ogawa, Hisao, Sugamura, Koichi, Sugiyama, Seigo, Doyama, Kiyoshi, Araki, Makoto, Suwa, Satoru, Sakata, Ryuzo, Ikeda, Tadashi, Marui, Akira, Minatoya, Kenji, Yamazaki, Kazuhiro, Onoe, Masahiko, Ogawa, Tatsuya, Yamanaka, Kazuo, Iwakura, Atsushi, Ohno, Nobuhisa, Fujiwara, Keiichi, Hanyu, Michiya, Soga, Kinji, Matsushita, Tsutomu, Nishiwaki, Noboru, Yoshida, Yuichi, Tamura, Nobushige, Okada, Yukikatsu, Nasu, Michihiro, Koyama, Tadaaki, Nakayama, Shogo, Tanaka, Kuniyoshi, Koshiji, Takaaki, Morioka, Koichi, Shimamoto, Mitsuomi, Yamazaki, Fumio, Terai, Yasuhiko, Nishizawa, Junichiro, Aota, Masaki, Kanemitsu, Naoki, Hara, Hiroyuki, Tabata, Takafumi, Imoto, Yutaka, Yamamoto, Hiroyuki, Matsuda, Katsuhiko, Nara, Masafumi, Tsuneyoshi, Hiroshi, Komiya, Tatsuhiko, Nakajima, Hiroyuki, Esaki, Jiro, Kawasuji, Michio, Moriyama, Syuji, Tambara, Keiichi, Arimura, Sakiko, Fujino, Yumika, Hanazawa, Miya, Hibi, Chikako, Kato, Risa, Kinoshita, Yui, Kitagawa, Kumiko, Kitamura, Masayo, Kuwahara, Takahiro, Sachiko, Maeda, Miki, Izumi, Minematsu, Saeko, Nishida, Satoko, Okamoto, Naoko, Saeki, Asuka, Sasae, Hitomi, Sato, Yuki, Takahashi, Asuka, Takinami, Emi, Tezuka, Saori, Tsuda, Marina, Tsumori, Miyuki, Uchida, Yuriko, Yamamoto, Yuko, Yamauchi, Misato, Yamazaki, Itsuki, Yoshimoto, Mai, Abe, Mitsuru, Fuki, Masayuki, Hayano, Mamoru, Kato, Eri, Kato, Yoshihiro, Matsumura-Nakano, Yukiko, Nakajima, Tetsu, Nakatsuma, Kenji, Natsuaki, Masahiro, Takeji, Yasuaki, Tazaki, Junichi, Tokushige, Akihiro, Watanabe, Hiroki, Yaku, Hidenori, Yamamoto, Erika, Yamamoto, Ko, Yamashita, Yugo, Yoshikawa, Yusuke, Morimoto, Takeshi, Kato, Eri T., Imada, Kazuaki, Nishikawa, Ryusuke, Mabuchi, Hiroshi, and Soga, Yoshiharu

Published
2022
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40. Orifice plate surface temperature measurement of a LaB6 hollow cathode using a near-infrared two-color radiation thermometer.

Author

Oshio, Yuya, Hirai, Keito, Watanabe, Hiroki, Horisawa, Hideyuki, and Funaki, Ikkoh

Subjects
CATHODES, NEAR infrared radiation, SURFACE plates, SURFACE temperature, PLASMA temperature, FIELD emission
Abstract

This study measured the two-dimensional orifice plate surface temperature of a 20-A-class LaB6 hollow cathode using a near-infrared two-color radiation thermometer. The thermometer technique resolved the orifice plate temperature with an accuracy of approximately 166 ℃. With this technique, the surface temperature of the orifice plate was found nearly uniform, with no observed temperature gradient on the orifice plate. Consequently, the operational characteristics of the hollow cathode are discussed in relation to the average surface temperature. Data analysis revealed that the orifice plate temperature was not sensitive to the mass flow rate; conversely, it was highly sensitive to the discharge current. Moreover, for the same input power, the orifice plate temperature was higher in the high-current, low-voltage mode also known as the spot mode indicating efficient emitter heating. The measurement system developed in this study provides a more precise evaluation of the orifice plate temperature and allows for estimating the internal conditions of a hollow cathode, thus facilitating more appropriate design evaluations under various operating conditions. [ABSTRACT FROM AUTHOR]

Published
2024
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41. Manipulability Analysis of Anterior and Mediolateral Dynamic Gait Stability of Young and Elderly Individuals.

Author

Watanabe, Hiroki, Okamoto, Shogo, Kuroda, Tomohito, and Akiyama, Yasuhiro

Subjects
*DYNAMIC stability, *OLDER people, *AGE groups, *DATABASES, *ADULTS, *GAIT in humans
Abstract

Humans maintain postural stability while walking by modulating their spatiotemporal walking features. It is crucial for humans to be able to restore stability in the event of a transient loss. However, the ease of adjusting postural stability has not yet been investigated extensively. This study applied manipulability, a concept widely used in robotics, to analyze the margin of stability (MoS), a measure of dynamic postural stability. The MoS values along each of the anterior and mediolateral directions were modeled as a function of spatiotemporal gait parameters, and the manipulability of the MoS was computed. We observed differences in manipulability between two age groups (60 healthy elderly adults and 60 healthy young individuals in their 20s) from an open database. The manipulability of the elderly was significantly higher than that of the young, suggesting that the elderly employed walking postures that allowed them to adjust their stability with relative ease. Furthermore, for the young group, the manipulability tended to be low when the mediolateral stability was low, with a correlation coefficient of 0.67. In contrast, the elderly group did not exhibit this relationship, showing differences in walking strategies between young and elderly individuals. The manipulability analysis of dynamic gait stability provides insights into revealing human gait strategies. [ABSTRACT FROM AUTHOR]

Published
2024
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42. Coronary Artery Disease Without Standard Cardiovascular Risk Factors

Author

Yamamoto, Ko, Natsuaki, Masahiro, Morimoto, Takeshi, Shiomi, Hiroki, Takeji, Yasuaki, Yamaji, Kyohei, Matsumura-Nakano, Yukiko, Yoshikawa, Yusuke, Yamamoto, Erika, Fuki, Masayuki, Kato, Eri, Yamashita, Yugo, Yaku, Hidenori, Nakatsuma, Kenji, Watanabe, Hiroki, Matsuda, Mitsuo, Tamura, Toshihiro, Inoko, Moriaki, Mabuchi, Hiroshi, Shirotani, Manabu, Eizawa, Hiroshi, Ishii, Katsuhisa, Inada, Tsukasa, Onodera, Tomoya, Shinoda, Eiji, Yamamoto, Takashi, Toyofuku, Mamoru, Takahashi, Mamoru, Sakamoto, Hiroki, Miki, Shinji, Aoyama, Takeshi, Suwa, Satoru, Sato, Yukihito, Furukawa, Yutaka, Ando, Kenji, Kadota, Kazushige, Nakagawa, Yoshihisa, and Kimura, Takeshi

Published
2022
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43. Target Lesion Revascularization After Intravascular Ultrasound-Guided Percutaneous Coronary Intervention

Author

Yamamoto, Ko, Shiomi, Hiroki, Morimoto, Takeshi, Miyazawa, Akiyoshi, Watanabe, Hiroki, Natsuaki, Masahiro, Watanabe, Hirotoshi, Yamaji, Kyohei, Ohya, Masanobu, Nakamura, Sunao, Mitomo, Satoru, Suwa, Satoru, Domei, Takenori, Tatsushima, Shojiro, Ono, Koh, Sakamoto, Hiroki, Shimamura, Kiyotaka, Shigetoshi, Masataka, Taniguchi, Ryoji, Nishimoto, Yuji, Okayama, Hideki, Matsuda, Kensho, Yokomatsu, Takafumi, Muto, Masahiro, Kawaguchi, Ren, Kishi, Koichi, Hadase, Mitsuyoshi, Fujita, Tsutomu, Nishida, Yasunori, Nishino, Masami, Otake, Hiromasa, Suematsu, Nobuhiro, Ajimi, Tsuneki, Tanabe, Kengo, Abe, Mitsuru, Hibi, Kiyoshi, Kadota, Kazushige, Ando, Kenji, and Kimura, Takeshi

Published
2023
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47. The whole blood transcriptional regulation landscape in 465 COVID-19 infected samples from Japan COVID-19 Task Force

Author

Wang, Qingbo S., Edahiro, Ryuya, Namkoong, Ho, Hasegawa, Takanori, Shirai, Yuya, Sonehara, Kyuto, Tanaka, Hiromu, Lee, Ho, Saiki, Ryunosuke, Hyugaji, Takayoshi, Shimizu, Eigo, Katayama, Kotoe, Kanai, Masahiro, Naito, Tatsuhiko, Sasa, Noah, Yamamoto, Kenichi, Kato, Yasuhiro, Morita, Takayoshi, Takahashi, Kazuhisa, Harada, Norihiro, Naito, Toshio, Hiki, Makoto, Matsushita, Yasushi, Takagi, Haruhi, Ichikawa, Masako, Nakamura, Ai, Harada, Sonoko, Sandhu, Yuuki, Kabata, Hiroki, Masaki, Katsunori, Kamata, Hirofumi, Ikemura, Shinnosuke, Chubachi, Shotaro, Okamori, Satoshi, Terai, Hideki, Morita, Atsuho, Asakura, Takanori, Sasaki, Junichi, Morisaki, Hiroshi, Uwamino, Yoshifumi, Nanki, Kosaku, Uchida, Sho, Uno, Shunsuke, Nishimura, Tomoyasu, Ishiguro, Takashri, Isono, Taisuke, Shibata, Shun, Matsui, Yuma, Hosoda, Chiaki, Takano, Kenji, Nishida, Takashi, Kobayashi, Yoichi, Takaku, Yotaro, Takayanagi, Noboru, Ueda, Soichiro, Tada, Ai, Miyawaki, Masayoshi, Yamamoto, Masaomi, Yoshida, Eriko, Hayashi, Reina, Nagasaka, Tomoki, Arai, Sawako, Kaneko, Yutaro, Sasaki, Kana, Tagaya, Etsuko, Kawana, Masatoshi, Arimura, Ken, Takahashi, Kunihiko, Anzai, Tatsuhiko, Ito, Satoshi, Endo, Akifumi, Uchimura, Yuji, Miyazaki, Yasunari, Honda, Takayuki, Tateishi, Tomoya, Tohda, Shuji, Ichimura, Naoya, Sonobe, Kazunari, Sassa, Chihiro Tani, Nakajima, Jun, Nakano, Yasushi, Nakajima, Yukiko, Anan, Ryusuke, Arai, Ryosuke, Kurihara, Yuko, Harada, Yuko, Nishio, Kazumi, Ueda, Tetsuya, Azuma, Masanori, Saito, Ryuichi, Sado, Toshikatsu, Miyazaki, Yoshimune, Sato, Ryuichi, Haruta, Yuki, Nagasaki, Tadao, Yasui, Yoshinori, Hasegawa, Yoshinori, Mutoh, Yoshikazu, Kimura, Tomoki, Sato, Tomonori, Takei, Reoto, Hagimoto, Satoshi, Noguchi, Yoichiro, Yamano, Yasuhiko, Sasano, Hajime, Ota, Sho, Nakamori, Yasushi, Yoshiya, Kazuhisa, Saito, Fukuki, Yoshihara, Tomoyuki, Wada, Daiki, Iwamura, Hiromu, Kanayama, Syuji, Maruyama, Shuhei, Yoshiyama, Takashi, Ohta, Ken, Kokuto, Hiroyuki, Ogata, Hideo, Tanaka, Yoshiaki, Arakawa, Kenichi, Shimoda, Masafumi, Osawa, Takeshi, Tateno, Hiroki, Hase, Isano, Yoshida, Shuichi, Suzuki, Shoji, Kawada, Miki, Horinouchi, Hirohisa, Saito, Fumitake, Mitamura, Keiko, Hagihara, Masao, Ochi, Junichi, Uchida, Tomoyuki, Baba, Rie, Arai, Daisuke, Ogura, Takayuki, Takahashi, Hidenori, Hagiwara, Shigehiro, Nagao, Genta, Konishi, Shunichiro, Nakachi, Ichiro, Murakami, Koji, Yamada, Mitsuhiro, Sugiura, Hisatoshi, Sano, Hirohito, Matsumoto, Shuichiro, Kimura, Nozomu, Ono, Yoshinao, Baba, Hiroaki, Suzuki, Yusuke, Nakayama, Sohei, Masuzawa, Keita, Namba, Shinichi, Shiroyama, Takayuki, Noda, Yoshimi, Niitsu, Takayuki, Adachi, Yuichi, Enomoto, Takatoshi, Amiya, Saori, Hara, Reina, Yamaguchi, Yuta, Murakami, Teruaki, Kuge, Tomoki, Matsumoto, Kinnosuke, Yamamoto, Yuji, Yamamoto, Makoto, Yoneda, Midori, Tomono, Kazunori, Kato, Kazuto, Hirata, Haruhiko, Takeda, Yoshito, Koh, Hidefumi, Manabe, Tadashi, Funatsu, Yohei, Ito, Fumimaro, Fukui, Takahiro, Shinozuka, Keisuke, Kohashi, Sumiko, Miyazaki, Masatoshi, Shoko, Tomohisa, Kojima, Mitsuaki, Adachi, Tomohiro, Ishikawa, Motonao, Takahashi, Kenichiro, Inoue, Takashi, Hirano, Toshiyuki, Kobayashi, Keigo, Takaoka, Hatsuyo, Watanabe, Kazuyoshi, Miyazawa, Naoki, Kimura, Yasuhiro, Sado, Reiko, Sugimoto, Hideyasu, Kamiya, Akane, Kuwahara, Naota, Fujiwara, Akiko, Matsunaga, Tomohiro, Sato, Yoko, Okada, Takenori, Hirai, Yoshihiro, Kawashima, Hidetoshi, Narita, Atsuya, Niwa, Kazuki, Sekikawa, Yoshiyuki, Nishi, Koichi, Nishitsuji, Masaru, Tani, Mayuko, Suzuki, Junya, Nakatsumi, Hiroki, Ogura, Takashi, Kitamura, Hideya, Hagiwara, Eri, Murohashi, Kota, Okabayashi, Hiroko, Mochimaru, Takao, Nukaga, Shigenari, Satomi, Ryosuke, Oyamada, Yoshitaka, Mori, Nobuaki, Baba, Tomoya, Fukui, Yasutaka, Odate, Mitsuru, Mashimo, Shuko, Makino, Yasushi, Yagi, Kazuma, Hashiguchi, Mizuha, Kagyo, Junko, Shiomi, Tetsuya, Fuke, Satoshi, Saito, Hiroshi, Tsuchida, Tomoya, Fujitani, Shigeki, Takita, Mumon, Morikawa, Daiki, Yoshida, Toru, Izumo, Takehiro, Inomata, Minoru, Kuse, Naoyuki, Awano, Nobuyasu, Tone, Mari, Ito, Akihiro, Nakamura, Yoshihiko, Hoshino, Kota, Maruyama, Junichi, Ishikura, Hiroyasu, Takata, Tohru, Odani, Toshio, Amishima, Masaru, Hattori, Takeshi, Shichinohe, Yasuo, Kagaya, Takashi, Kita, Toshiyuki, Ohta, Kazuhide, Sakagami, Satoru, Koshida, Kiyoshi, Hayashi, Kentaro, Shimizu, Tetsuo, Kozu, Yutaka, Hiranuma, Hisato, Gon, Yasuhiro, Izumi, Namiki, Nagata, Kaoru, Ueda, Ken, Taki, Reiko, Hanada, Satoko, Kawamura, Kodai, Ichikado, Kazuya, Nishiyama, Kenta, Muranaka, Hiroyuki, Nakamura, Kazunori, Hashimoto, Naozumi, Wakahara, Keiko, Koji, Sakamoto, Omote, Norihito, Ando, Akira, Kodama, Nobuhiro, Kaneyama, Yasunari, Maeda, Shunsuke, Kuraki, Takashige, Matsumoto, Takemasa, Yokote, Koutaro, Nakada, Taka-Aki, Abe, Ryuzo, Oshima, Taku, Shimada, Tadanaga, Harada, Masahiro, Takahashi, Takeshi, Ono, Hiroshi, Sakurai, Toshihiro, Shibusawa, Takayuki, Kimizuka, Yoshifumi, Kawana, Akihiko, Sano, Tomoya, Watanabe, Chie, Suematsu, Ryohei, Sageshima, Hisako, Yoshifuji, Ayumi, Ito, Kazuto, Takahashi, Saeko, Ishioka, Kota, Nakamura, Morio, Masuda, Makoto, Wakabayashi, Aya, Watanabe, Hiroki, Ueda, Suguru, Nishikawa, Masanori, Chihara, Yusuke, Takeuchi, Mayumi, Onoi, Keisuke, Shinozuka, Jun, Sueyoshi, Atsushi, Nagasaki, Yoji, Okamoto, Masaki, Ishihara, Sayoko, Shimo, Masatoshi, Tokunaga, Yoshihisa, Kusaka, Yu, Ohba, Takehiko, Isogai, Susumu, Ogawa, Aki, Inoue, Takuya, Fukuyama, Satoru, Eriguchi, Yoshihiro, Yonekawa, Akiko, Kan-o, Keiko, Matsumoto, Koichiro, Kanaoka, Kensuke, Ihara, Shoichi, Komuta, Kiyoshi, Inoue, Yoshiaki, Chiba, Shigeru, Yamagata, Kunihiro, Hiramatsu, Yuji, Kai, Hirayasu, Asano, Koichiro, Oguma, Tsuyoshi, Ito, Yoko, Hashimoto, Satoru, Yamasaki, Masaki, Kasamatsu, Yu, Komase, Yuko, Hida, Naoya, Tsuburai, Takahiro, Oyama, Baku, Takada, Minoru, Kanda, Hidenori, Kitagawa, Yuichiro, Fukuta, Tetsuya, Miyake, Takahito, Yoshida, Shozo, Ogura, Shinji, Abe, Shinji, Kono, Yuta, Togashi, Yuki, Takoi, Hiroyuki, Kikuchi, Ryota, Ogawa, Shinichi, Ogata, Tomouki, Ishihara, Shoichiro, Kanehiro, Arihiko, Ozaki, Shinji, Fuchimoto, Yasuko, Wada, Sae, Fujimoto, Nobukazu, Nishiyama, Kei, Terashima, Mariko, Beppu, Satoru, Yoshida, Kosuke, Narumoto, Osamu, Nagai, Hideaki, Ooshima, Nobuharu, Motegi, Mitsuru, Umeda, Akira, Miyagawa, Kazuya, Shimada, Hisato, Endo, Mayu, Ohira, Yoshiyuki, Watanabe, Masafumi, Inoue, Sumito, Igarashi, Akira, Sato, Masamichi, Sagara, Hironori, Tanaka, Akihiko, Ohta, Shin, Kimura, Tomoyuki, Shibata, Yoko, Tanino, Yoshinori, Nikaido, Takefumi, Minemura, Hiroyuki, Sato, Yuki, Yamada, Yuichiro, Hashino, Takuya, Shinoki, Masato, Iwagoe, Hajime, Takahashi, Hiroshi, Fujii, Kazuhiko, Kishi, Hiroto, Kanai, Masayuki, Imamura, Tomonori, Yamashita, Tatsuya, Yatomi, Masakiyo, Maeno, Toshitaka, Hayashi, Shinichi, Takahashi, Mai, Kuramochi, Mizuki, Kamimaki, Isamu, Tominaga, Yoshiteru, Ishii, Tomoo, Utsugi, Mitsuyoshi, Ono, Akihiro, Tanaka, Toru, Kashiwada, Takeru, Fujita, Kazue, Saito, Yoshinobu, Seike, Masahiro, Watanabe, Hiroko, Matsuse, Hiroto, Kodaka, Norio, Nakano, Chihiro, Oshio, Takeshi, Hirouchi, Takatomo, Makino, Shohei, Egi, Moritoki, Omae, Yosuke, Nannya, Yasuhito, Ueno, Takafumi, Takano, Tomomi, Katayama, Kazuhiko, Ai, Masumi, Kumanogoh, Atsushi, Sato, Toshiro, Hasegawa, Naoki, Tokunaga, Katsushi, Ishii, Makoto, Koike, Ryuji, Kitagawa, Yuko, Kimura, Akinori, Imoto, Seiya, Miyano, Satoru, Ogawa, Seishi, Kanai, Takanori, Fukunaga, Koichi, and Okada, Yukinori

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2022
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