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An Experimental Study on the Motion of Floating Bodies Arranged in Series for Wave Power Generation

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材料科学与工程（中英文A版） 2017年第6期7卷 281-289页

作者： Seiki Chiba Kenta Hasegawa mikio waki Sho Kurita Chiba Science Institute Yakumo Meguro-Ward Tokyo 152-0023 Japan National Maritime Research Institute 6-38-1 Shinkawa Mitaka-City Tokyo 181-0004 Japan Wits Inc. Oshiage Sakura-City Tochigi 329-1334 Japan Kureha Elastomer Co. Ltd Kanonnji-cho Tsu-City Mie 514-8511 Japan

Simple and Robust Direct Drive Wave Power Generation System Using Dielectric Elastomers

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材料科学与工程（中英文B版） 2017年第1期7卷 39-47页

作者： Seiki Chiba mikio waki Koji Fujita Koichi Masuda Tomoki Ikoma Chiba Science Institute Meguro Ward Tokyo 152-0023 Japan Wits Inc. Sakura City Tochigi 329-1334 Japan Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara City Kanagawa 252-5210 Japan Department of Oceanic Architecture and Engineering CST Nihon University Funabashi City Chiba 274-8501 Japan

Innovative Elastomer Transducer Driven by Karman Vortices in Water Flow

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材料科学与工程（中英文A版） 2017年第3期7卷 121-135页

作者： Seiki Chiba Kenta Hasegawa mikio waki Koji Fujita Kazuhiro Ohyama Shijie Zhu Chiba Science Institute 3-8-18 Yakumo Meguro-Ward Tokyo 152-0023 Japan National Maritime Research Institute 6-38-1 Shinkawa Mitaka-City Tokyo 181-0004 Japan Wits lnc. 880-30shiage Sakura-City Tochigi 329-1334 Japan Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara City Kanagawa 252-5210 Japan Fukuoka Institute of Technology Fukuoka-City Fukuoka 811-0295 Japan

Experimental Investigation on the Power Generation Performance of Dielectric Elastomer Wave Power Generator Mounted on a Square Type Floating Body

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材料科学与工程（中英文B版） 2017年第5期7卷 179-186页

作者： mikio waki Seiki A. Chiba Z. Song S. Zhu K. Ohyama Wits Inc. Oshiage Sakura-City Tochigi 329-1334 Japan Chiba Science Institute Muguro-ward Tokyo 152-0023 Japan Fukuoka Institute of Technology Wajiro-Higashi Higashi-ku Fukuoka Fukuoka 811-0295 Japan

Development of Wave Generation Module for Small Ships Using Dielectric Elastomer

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材料科学与工程（中英文B版） 2017年第4期7卷 171-177页

作者： mikio waki Seiki A. Chiba K. Ohyama S. Zhu Noriyuki Oya K. Fujita Wits Inc. 880-30shiage Sakura-City Tochigi 329-1334 Japan Chiba Science Institute 3-8-18 Yakumo Meguro-Ward Tokyo 152-0023 Japan Fukuoka Institute of Technology 3-30-1 Wajiro-Higashi Higashi-ku Fukuoka 811-0295 Japan KMC Corporation 41 2-chome Tsukisan-cho Minato-ku Nagoya 455-8668 Japan Japan Aerospace Exploration Agency 3-1-1 Yoshinodai Chuo-ku Sagamihara Kanagawa 252-5210 Japan

Spectrally resolved Franson interference

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Science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 11-17页

作者： Rui-Bo Jin Zi-Qi Zeng Dan Xu Chen-Zhi Yuan Bai-Hong Li You Wang Ryosuke Shimizu Masahiro Takeoka mikio Fujiwara Masahide Sasaki Pei-Xiang Lu Hubei Key Laboratory of Optical Information and Pattern Recognition Wuhan Institute of TechnologyWuhan 430205China School of Physics and Information Science Shaanxi University of Science and TechnologyXi'an 710021China Southwest Institute of Technical Physics Chengdu 610041China Graduate School of Informatics and Engineering University of Electro-CommunicationsTokyo 182-8585Japan Department of Electronics and Electrical Engineering Keio UniversityKanagawa 223-8522Japan National Institute of Information and Communications Technology Tokyo 184-8795Japan

Franson interference can be used to test the nonlocal features of energy-time entanglement and has become a standard in quantum ***,most of the previous Franson interference experiments were demonstrated in the time domain,and the spectral properties of Franson interference have not been fully ***,we theoretically and experimentally demonstrate spectrally resolved Franson interference using biphotons with different correlations,including positive correlation,negative correlation,and *** is found that the joint spectral intensities of the biphotons can be modulated along both the signal and idler directions,which has potential applications in generating high-dimensional frequency entanglement and time-frequency grid *** work may provide a new perspective for understanding the spectral-temporal properties of the Franson interferometer.

关键词： resolved correlation spectral

Real-world efficacy and safety of tofacitinib treatment in Asian patients with ulcerative colitis

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World Journal of Gastroenterology 2024年第13期30卷 1871-1886页

作者： Kentaro Kojima Kenji Watanabe mikio Kawai Soichi Yagi Koji Kaku Maiko Ikenouchi Toshiyuki Sato Koji Kamikozuru Yoko Yokoyama Tetsuya Takagawa Masahito Shimizu Shinichiro Shinzaki Department of Gastroenterology Hyogo Medical UniversityNishinomiya 663-8501Japan Department of Gastroenterology Gifu University Graduate School of MedicineGifu 501-1194Japan Department of Internal Medicine for Inflammatory Bowel Disease The University of ToyamaToyama 930-0194Japan Center for Clinical Research and Education Hyogo Medical UniversityNishinomiya 663-8501Japan

BACKGROUND Real-world data on tofacitinib(TOF)covering a period of more than 1 year for a sufficient number of Asian patients with ulcerative colitis(UC)are *** To investigate the long-term efficacy and safety of TOF treatment for UC,including clinical *** We performed a retrospective single-center observational analysis of 111 UC patients administered TOF at Hyogo Medical University as a tertiary inflammatory bowel disease *** consecutive UC patients who received TOF between May 2018 and February 2020 were *** were followed up until August *** primary outcome was the clinical response rate at week *** outcomes included clinical remission at week 8,cumulative persistence rate of TOF administration,colectomy-free survival,relapse after tapering of TOF and predictors of clinical response at week 8 and week *** The clinical response and remission rates were 66.3%and 50.5%at week 8,and 47.1%and 43.5%at week 48,*** overall cumulative clinical remission rate was 61.7%at week 48 and history of anti-tumor necrosis factor-alpha(TNF-α)agents use had no influence(P=0.25).The cumulative TOF persistence rate at week 48 was significantly lower in patients without clinical remission than in those with remission at week 8(30.9%vs 88.1%;P<0.001).Baseline partial Mayo Score was significantly lower in responders vs non-responders at week 8(odds ratio:0.61,95%confidence interval:0.45-0.82,P=0.001).Relapse occurred in 45.7%of patients after TOF tapering,and 85.7%of patients responded within 4 wk after *** 6 patients with herpes zoster(HZ)developed the infection after achieving remission by *** TOF was more effective in UC patients with mild activity at baseline and its efficacy was not affected by previous treatment with anti-TNF-α*** relapsed patients responded again after re-increase of TOF and nearly half relapsed after tapering off *** attention is needed for tapering and H

关键词： Ulcerative colitis Tofacitinib Janus kinase inhibitor Real-world Biologics

Parallel computing of discrete element method on multi-core processors

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Particuology 2011年第4期9卷 398-405页

作者： Yusuke Shigeto mikio Sakai Department of Systems Innovation School of Engineering The University of Tokyo

This paper describes parallel simulation techniques for the discrete element method （DEM） on multi-core processors. Recently, multi-core CPU and GPU processors have attracted much attention in accelerating computer simulations in various fields. We propose a new algorithm for multi-thread parallel computation of DEM, which makes effective use of the available memory and accelerates the computation. This study shows that memory usage is drastically reduced by using this algorithm. To show the practical use of DEM in industry, a large-scale powder system is simulated with a complicated drive unit. We compared the performance of the simulation between the latest GPU and CPU processors with optimized programs for each processor. The results show that the difference in performance is not substantial when using either GPUs or CPUs with a multi-thread parallel algorithm. In addition, DEM algorithm is shown to have high scalabilitv in a multi-thread parallel computation on a CPU.

关键词： Discrete element method Parallel computing Multi-core processor GPGPU

Electro-Oxidation of Concentrated Ce(Ⅲ) at Carbon Felt Anode in Nitric Acid Media

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Journal of Rare Earths 2006年第3期24卷 257-263页

作者： Jelinek Ludek mikio Kumagai Nuclear Chemistry and Chemical Engineering Center Institute of Research and Innovation 1201 Takada Kashiwa 277-0861 Chiba-ken Japan

Electro-oxidation of Ce （ Ⅲ ） to Ce （ Ⅳ ） in parallel plate flow type electrolyzer divided with cation exchange membrane was carried out in nitric acid media at carbon felt anode under galvanostatic conditions. Carbon felt was used as an anode for its high specific surface area and high oxygen evolution overpotential. Pt coated Ti plates were used as cathode and anode current feeder. The oxidation of 1 mol· L^-1 Ce（ Ⅲ ） solution in 2 mol· L^- 1 HNO3 was proceeding with a high current efficiency （92%） until about 80% of Ce（ Ⅲ ） was oxidized. Then, oxygen evolution, accompanied by terminal voltage jump, took place, lowering current efficiency. Ce（ Ⅲ ） was oxidized up to 90% with current efficiency of 62%. In this mode, strong carbon felt anode oxidation was observed. The wear out of carbon felt was 46% in six consequent runs （6 h of operation）. After each run, carbon felt surface had to be renewed with slightly alkaline solution to remove carbon oxidation products and ensure regular operational conditions. When anode surface was blocked, oxygen evolution took place from the beginning of electrolysis due to higher actual current density. The wear out of carbon felt anode could be minimized by means of oxygen evolution prevention. In the case when electrolysis had been stopped before oxygen evolution started （at Ce（ Ⅳ ） conversion of about 80% ）, the wear out of anode was less than 2% during 6 consequent runs （4 h of operation）.

关键词： electrolyzer Ce oxidation carbon felt anode rare earths