Updated on 2025/02/07

写真a

 
UEDA Hiroshi
 
Organization
Faculty of Environmental, Life, Natural Science and Technology Associate Professor
Position
Associate Professor
External link

Degree

  • 博士(工学) ( 早稲田大学 )

Research Interests

  • Computational electromagnetics

  • Energy engineering

  • Applied superconductivity

  • Electric equipment

  • Medical application

  • Carbon neutrality

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering  / Superconductivity, Electrical equipment, Carbon neutrality, Computational electromagnetics

  • Life Science / Medical systems  / Magnetic Resonance Imaging(MRI), Nuclear magnetic resonance (NMR) spectroscopy, Accelerator

  • Energy Engineering / Nuclear fusion  / Magnet for nuclear fusion reactor

Education

  • Waseda University   大学院理工学研究科   電気工学専攻

    1999.4 - 2004.3

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    Country: Japan

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  • Waseda University   理工学部   電気電子情報工学科

    1995.4 - 1999.3

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    Country: Japan

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Research History

  • Okayama University   Faculty of Environmental, Life, Natural Science and Technology   Associate Professor

    2023.4

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    Country:Japan

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  • Okayama University   Faculty of Natural Science and Technology   Associate Professor

    2021.4 - 2023.3

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    Country:Japan

    Notes:改組による所属名称変更

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  • Okayama University   Graduate School of Natural Science and Technology   Associate Professor

    2016.3 - 2021.3

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  • Osaka University   Research Center for Nuclear Physics   Research Associate

    2010.10 - 2016.2

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  • International Superconductivity Technology Center, Superconductivity Research Laboratory   Senior Researcher

    2010.4 - 2010.9

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Professional Memberships

Committee Memberships

  • 電気学会   電磁界解析の高度利用とAIの活用による回転機の先進最適化・性能評価技術調査専門委員会 委員  

    2024.4   

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    Committee type:Academic society

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  •   International Workshop on Cooling system for HTS Applications, Local Committee  

    2023.10 - 2025.5   

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    Committee type:Academic society

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  • 低温工学・超電導学会   小型核融合用REBCO導体とマグネットの実用化に関する調査研究会 幹事  

    2023.4   

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    Committee type:Academic society

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  • 電気学会   電磁界解析を用いた革新技術開発調査専門委員会 委員  

    2022.4   

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    Committee type:Academic society

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  • 電気学会   電磁界解析による回転機の高精度モデリングと先進最適化技術調査専門委員会 委員  

    2022.4 - 2024.3   

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    Committee type:Academic society

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Papers

  • Experiment and numerical simulation of the combined effect of winding, cool-down, and screening current induced stresses in REBCO coils Reviewed International journal

    Hiroshi Ueda, Hideaki Maeda, Yu Suetomi, Yoshinori Yanagisawa

    Superconductor Science and Technology   35 ( 5 )   054001 - 054001   2022.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:{IOP} Publishing  

    This paper overviews the combined effects of winding, cool-down, and screening current-induced stresses in REBCO coils. First, a simulation method to model the circumferential stress modification effect due to the screening-current is overviewed. The simulation includes coil winding, cooling down, and coil charge up to the operating current. Second, we will compare the numerical simulation results with the experimental results. The numerical simulations for a dry coil and an epoxy impregnated coil agree well with the experimental results. Third, the enhanced circumferential stress did not degrade the performance of a dry winding REBCO coil, but the improved increased compressive stress buckled the coil structure. Finally, it is demonstrated that epoxy impregnation has beneficial effects in reducing the stress modification effect. However, the circumferential stress is enormously enhanced at the coil ends, sometimes resulting in degradation of the coil performance.

    DOI: 10.1088/1361-6668/ac4b9e

    Web of Science

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  • Numerical evaluation of the deformation of REBCO pancake coil, considering winding tension, thermal stress, and screening-current-induced stress Reviewed International journal

    Hiroshi Ueda, Yuta Awazu, Keisuke Tokunaga, SeokBeom Kim

    Superconductor Science and Technology   34 ( 2 )   24003 - 24003   2021.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    In recent years, the applications of high-field REBa2CuOy (REBCO) coils have remarkably progressed towards NMR MRIs, accelerators, and other such devices. In a REBCO coil, the magnetic field due to the screening current is generated in the direction opposite to the field by the transport current, thus reducing the magnetic field, deteriorating the field homogeneity, and affecting the time stability of the magnetic field. Recently, the additional force and stress due to the screening current (referred to as screening-current-induced stress) has become a topic of concern. The screening current results in non-uniform current distributions in the REBCO tape. Therefore, the distribution of electromagnetic force in REBCO coils differs from that during the designing of the coil, assuming that the current flow in the tape is uniform. Thus, there is the possibility that the existence of screening current is a serious problem in the mechanical design of REBCO coils. In this study, we evaluate the electromagnetic force and stress due to the screening current by using the developed numerical simulation code for the electromagnetics and stress. We discuss the winding tension, thermal and electromagnetic stresses, and mechanical strength structure of the REBCO coil.

    DOI: 10.1088/1361-6668/abcd24

    Web of Science

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    Other Link: https://iopscience.iop.org/article/10.1088/1361-6668/abcd24/pdf

  • Conceptual Design of Compact HTS Cyclotron for RI Production Reviewed International journal

    Hiroshi Ueda, Atsushi Ishiyama, So Noguchi, Tomonori Watanabe, Shigeo Nagaya, Jun Yoshida, Mitsuhiro Fukuda

    IEEE Transactions on Applied Superconductivity   29 ( 5 )   4101105   2019.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC  

    In autumn 2017, the project "Quantum Innovation for Safe and Smart Society (QiSS)" was started in Program on Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) by Japan Science and Technology Agency (JST). One of the key issues of this project is the advancement of compact cyclotron and beam irradiation device for stable supply of short-lived radioisotope (RI). We proposed the air-core cyclotron using high-temperature superconducting (HTS) technology, named Skeleton Cyclotron, as high intensity compact cyclotron. Currently, we are carrying out a feasibility study on a variable-energy multi-particle Skeleton Cyclotron for RI production. In this paper, key issues in HTS magnet technologies for Skeleton Cyclotron and the preliminary conceptual design of variable-energy multi-particle Skeleton Cyclotron are reported.

    DOI: 10.1109/TASC.2019.2903538

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  • Numerical Simulation on Magnetic Field Generated by Screening Current in 10-T-Class REBCO Coil Reviewed International journal

    Hiroshi Ueda, Yohei Imaichi, Tao Wang, Atsushi Ishiyama, So Noguchi, Sadanori Iwai, Hiroshi Miyazaki, Taizo Tosaka, Shunji Nomura, Tsutomu Kurusu, Shinichi Urayama, Hidenao Fukuyama

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   26 ( 4 )   4701205   2016.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC  

    In a REBCO superconducting magnet for magnetic resonance imaging (MRI) applications, the large screening current induced by a magnetic field perpendicular to the winding tape is a serious problem: it generates irregular magnetic field that deteriorates the spatial field homogeneity and temporal field stability in MRI applications. Therefore, we need to estimate the magnetic field generated by the screening current using electromagnetic field analysis to design and develop a REBCO magnet that generates highly accurate and stable magnetic field. Therefore, to examine the influence of the magnetic field generated by the screening current, we constructed cryocooler-cooled small bore-coil stacked pancake REBCO coils with an inner diameter of 50 mm. This coil generates a magnetic field of 10 T at the center. In this study, we report the evaluation of the current distribution and magnetic field in the REBCO coil using the developed 3-D numerical simulation code for electromagnetic field analysis in a REBCO tape using the finite-element method and fast multipole method. The numerical results agree well with the experimental results. Furthermore, we discuss the current distribution in the REBCO tape and the spatial and temporal behavior of the magnetic field on the basis of the results of the experiments and numerical simulation.

    DOI: 10.1109/TASC.2016.2535965

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  • Performance of Filters in Medical Protein Separation System Using Superconducting Magnet Reviewed International journal

    Hiroshi Ueda, Koh Agatsuma, Mitsuho Furuse, Shuichiro Fuchino, Kazuhiro Kajikawa, Yasuharu Kamioka, Tomohiro Iitsuka, Shuichi Nakamura

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   24 ( 3 )   3700405   2014.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC  

    Medical proteins such as monoclonal antibodies or immunoglobulin are important as medicine for cancer and other uses. Today, we can easily sort and analyze medical proteins using various types of commercially available affinity magnetic beads. However, separation systems for these medical proteins have a very low separation rate, and the cost of the product is extremely high. We successfully developed a high gradient magnetic separation system using a cryocooler-cooled low-temperature superconducting magnet and conducted experiments on separating affinity magnetic nanobeads. Our system demonstrated very high separation efficiency and can achieve low costs with a large production rate compared to systems now used in this field. The design of a filter to trap and recover the nanobeads is important to this application. In order to achieve a filter with a high trapping ratio of magnetic beads, the parameters need to be optimized because the ratio depends on the dimensions and arrangement of the filter made of fine magnetic metal fibers. In this study, we investigated the performance of filters in the high gradient magnetic separation system. The test results show 97.8% of the magnetic nanobeads in pure water were captured, and 94.1% of the total beads were collected.

    DOI: 10.1109/TASC.2013.2290374

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Books

  • Magnet Technology using Next Generation High Tc Superconductors

    Investigation Committee of, Magnet Technology using Next, Generation High, Tc Superconductors( Role: Contributor)

    The Institute of Electrical Engineers of Japan  2019.2 

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    Total pages:28   Language:Japanese Book type:Report

    As the Next generation high Tc superconductors have high critical current density at high magnetic fields and high mechanical strength, they are applicable to broad areas of electric machinery. The “Investigation Committee of Magnet Technology using Next Generation High Tc Superconductors” founded in 2015 investigated recent technologies related on the magnet technologies using the next generation HTSs, especially focusing on (a) characteristics of commercial superconductors, (b) analytical method for screening current induced magnetic field, and (c) stability and protection of HTS magnets. This report summarizes the recent trends on HTS magnet technologies.

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  • Research trends in Yttrium-Barium-Copper Oxide high-temperature superconducting magnet technology

    Investigating, R, D Committee of Yttrium-Barium-Copper, Oxide High Temperature Superconducting Magnet Technology( Role: Contributor)

    The Institute of Electrical Engineers of Japan  2016.3 

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    Total pages:55   Language:Japanese Book type:Report

    As Yttrium-Barium-Copper Oxide (YBCO) high-temperature superconductors have a high critical current density at high magnetic fields and high mechanical strength, they are applicable to broad areas of electric machinery. However, the YBCO magnet technology is still insufficiently developed, as the YBCO conductors are only recently commercialized. From this point of view, the “Investigating R&D Committee of YBCO High Temperature Superconducting (HTS) Magnet Technology” was founded in 2013 to investigate the research trend of YBCO-HTS magnet technology. This report summarizes their findings as follows: (a) Basic research results on “magnet degradation on cooling”, “screening-current induced magnetic field”, “magnet protection”, and “persistent joints”; (b) technical problems being encountered during magnet fabrication; (c) developments of YBCO superconducting apparatus. The authors are confident that the report has highly original aspects and will arouse much interest among researchers in this field.

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MISC

  • Numerical Simulation Techniques for No-Insulation REBCO Pancake Coils - Comparison of Models and Simulation- Invited Reviewed

    野口聡, 植田浩史, 石山敦士

    低温工学   54 ( 2 )   103‐110(J‐STAGE)   2019.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2221/jcsj.54.103

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  • Current Status of Numerical Simulation Techniques for High-Temperature Superconducting Application Equipment Invited Reviewed

    植田浩史, 野口聡, 石山敦士

    低温工学   54 ( 2 )   2019.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2221/jcsj.54.89

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  • 応用電磁気学:超電導機器応用のための電磁界数値解析III -超電導特性と電磁界解析- Invited Reviewed

    植田 浩史, 石山 敦士

    低温工学   48 ( 9 )   472 - 484   2013.9

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2221/jcsj.48.472

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  • 高温超電導コイルの安定性評価基準とクエンチ検出・保護 -SMES 用伝導冷却YBCO コイルを例として- Invited Reviewed

    石山 敦士, 植田 浩史, 王 旭東, 長屋 重夫, 渡部 智則

    低温工学   48 ( 4 )   141 - 150   2013.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2221/jcsj.48.141

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  • 応用電磁気学:超電導機器応用のための電磁界数値解析II -有限要素法と境界要素法- Invited Reviewed

    植田 浩史, 石山 敦士

    低温工学   48 ( 2 )   83 - 94   2013.2

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2221/jcsj.48.83

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Presentations

  • AC Loss Characteristics of an HTS Coil with Ferrite Cores for a Wireless Power Transmission System Invited International conference

    Ryota InoueTakahiro IwamotoHaruki KomodaHiroshi UedaSeokBeom Kim

    37th International Superconductivity Symposium (ISS 2024)  2024.12.3  Cryogenics and Superconductivity Society of Japan (CSSJ)

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    Event date: 2024.12.3 - 2024.12.5

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Kanazawa  

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  • 「スケルトン・サイクロトロン」用無絶縁REBCOコイルシステムの開発(2024年秋): (その5)1/2スケール実証用無絶縁REBCOコイルシステムの常伝導転移

    石山 敦士, 野口 聡, 植田 浩史, 渡部 智則

    2024年度秋季低温工学・超電導学会  2024.11.27  低温工学・超電導学会

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    Event date: 2024.11.25 - 2024.11.27

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:盛岡  

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  • 「スケルトン・サイクロトロン」用無絶縁REBCOコイルシステムの開発(2024年秋):(その4)1/2スケール実証用無絶縁REBCOコイルシステムの応力特性解析

    植田 浩史, 山下 葵, 廣田 悠力, 南前 俊介, 井上 良太, 金 錫範, 野口 聡, 渡部 智則, 石山 敦士

    2024年度秋季低温工学・超電導学会  2024.11.27  低温工学・超電導学会

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    Event date: 2024.11.25 - 2024.11.27

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:盛岡  

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  • 「スケルトン・サイクロトロン」用無絶縁REBCOコイルシステムの開発(2024年秋): (その1)全体概要

    石山 敦士, 野口 聡, 植田 浩史, 福田 光宏, 吉田 潤, 渡部 智則

    2024年度秋季低温工学・超電導学会  2024.11.27  低温工学・超電導学会

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    Event date: 2024.11.25 - 2024.11.27

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:盛岡  

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  • 「スケルトン・サイクロトロン」用無絶縁REBCOコイルシステムの開発(2024年秋): (その3)1/2スケール実証用無絶縁REBCOコイルシステムの励磁特性評価

    折原 菜月, 石山 敦士, 野口 聡, 植田 浩史, 渡部 智則

    2024年度秋季低温工学・超電導学会  2024.11.27  低温工学・超電導学会

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    Event date: 2024.11.25 - 2024.11.27

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:盛岡  

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Industrial property rights

  • 空芯型サイクロトロン

    石山 敦士, 植田 浩史, 福田 光宏, 畑中 吉治, 鹿島 直二, 長屋 重夫

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    Applicant:学校法人早稲田大学, 中部電力株式会社

    Application no:特願2013-215694  Date applied:2013.10.16

    Announcement no:特開2015-079626  Date announced:2015.4.23

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  • 空芯型サイクロトロン

    石山 敦士, 植田 浩史, 福田 光宏, 畑中 吉治, 鹿島 直二, 長屋 重夫

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    Applicant:学校法人早稲田大学, 中部電力株式会社

    Application no:特願2013-215694  Date applied:2013.10.16

    Announcement no:特開2015-079626  Date announced:2015.4.23

    Patent/Registration no:特許第6255549号  Date issued:2017.12.15

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  • 空芯型サイクロトロン

    石山 敦士, 植田 浩史, 福田 光宏, 畑中 吉治, 鹿島 直二, 長屋 重夫

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    Applicant:学校法人早稲田大学, 中部電力株式会社

    Application no:特願2010-252226  Date applied:2010.11.10

    Announcement no:特開2012-104386  Date announced:2012.5.31

    J-GLOBAL

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  • 空芯型サイクロトロン

    石山 敦士, 植田 浩史, 福田 光宏, 畑中 吉治, 鹿島 直二, 長屋 重夫

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    Applicant:学校法人早稲田大学, 中部電力株式会社

    Application no:特願2010-252226  Date applied:2010.11.10

    Announcement no:特開2012-104386  Date announced:2012.5.31

    Patent/Registration no:特許第5708984号  Date issued:2015.3.13

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  • 空芯型サイクロトロン

    石山 敦士, 植田 浩史, 福田 光宏, 畑中 吉治, 鹿島 直二, 長屋 重夫

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    Applicant:学校法人早稲田大学, 福田 光宏, 畑中 吉治, 中部電力株式会社

    Application no:特願2010-132256  Date applied:2010.6.9

    Announcement no:特開2011-258427  Date announced:2011.12.22

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Awards

  • 優秀技術活動賞 技術報告賞

    2017.6   電気学会   「イットリウム系高温超電導マグネット技術の研究開発動向 」

    イットリウム系高温超電導コイル化技術調査専門委員会

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  • 技術進歩賞

    2015.5   低温工学・超電導学会   「医薬用タンパク質の超電導高勾配磁気分離装置の開発」

    植田 浩史, 柁川 一弘, 上岡 泰晴, 我妻 洸, 淵野 修一郎, 古瀬 充穂, 飯塚 倫尋, 中村 秀一

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    Award type:Honored in official journal of a scientific society, scientific journal 

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  • 大阪大学 総長奨励賞

    2014.4  

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  • 超電導応用電力機器技術委員会 若手優秀発表賞

    2013.1   電気学会   「加速器応用を想定した高温超電導コイルの遮へい電流と磁場分布の空間的・時間的変化の3次元解析」

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    Award type:Award from Japanese society, conference, symposium, etc. 

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  • 優良発表賞

    2010.5   低温工学・超電導学会   「球状バルク超電導体の浮上安定性評価」

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Research Projects

  • Realization of highly robust, high-performance, low-cost high-temperature superconducting coil systems without protection

    Grant number:22H01478  2022.04 - 2025.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    石山 敦士, 植田 浩史, 野口 聡, 福井 聡

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    Grant amount:\17160000 ( Direct expense: \13200000 、 Indirect expense:\3960000 )

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  • 超電導技術を用いた革新的なEV用急速非接触給電システムを実現させるための研究

    2021.04 - 2024.03

    岡山県  特別電源所在県科学技術振興事業における大学等委託 

    金 錫範, 植田 浩史

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    Authorship:Coinvestigator(s)  Grant type:Competitive

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  • 高温超電導コイルの完全自己保護法の開発 International coauthorship

    2021.04 - 2024.03

    東電記念財団  研究助成(基礎研究)ステップアップ助成 

    植田 浩史

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3000000 ( Direct expense: \3000000 )

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  • Establishment of design principle and basic technology for next generation medical high temperature superconducting skeleton-cyclotron

    Grant number:18H05244  2018.06 - 2022.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (S)  Grant-in-Aid for Scientific Research (S)

    石山 敦士, 植田 浩史, 野口 聡, 東 達也, 福田 光宏, 鷲尾 方一

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    Authorship:Coinvestigator(s) 

    Grant amount:\193440000 ( Direct expense: \148800000 、 Indirect expense:\44640000 )

    本研究の目標は、核医学治療用α線放出RI(211At)の多量・安定・分散生産のための加速器「高温超伝導スケルトン・サイクロトロン(HTS-SC)」を開発することである。そして本課題では、ビーム加速に必要な磁場を高精度に形成するための高温超伝導マルチコイルシステムを実現する5-High技術(高機械強度・高電流密度・高熱的安定・高磁場・高精度磁場)を統合した革新的コイル化技術の確立を目指す。2019年度(2年目)の主な成果としては、まず、2021年・22年度に試作・実験を予定している「小型モデル(Baby-HTS-SC)」用REBCOマルチコイルシステムの設計を予定より前倒して終了した。また5-High統合コイル化技術については、1)高機械強度化技術:非円形小型モデルコイルの高磁場(10T)下での通電試験(電磁応力・ひずみ測定)を実施し、初年度実施した数値解析で予測された結果が得られた。2)高電流密度化と高熱的安定化を両立する技術(無絶縁コイル技術):コイルサイズ、運転温度、発生磁場等をパラメータとして過渡安定性を解析評価した結果、HTS-SC用のような大口径(0.5mφ以上)コイルにおいて無絶縁コイル技術が特に有効であることを明らかにした。また、層間の接触電気抵抗の適正値の決定法とその制御法を提案した。さらにREBCO線材の一部に欠陥や電磁力等による線材劣化が存在・発生しても、従来の外部保護抵抗によるエネルギー回収を行わずに運転を継続できる可能性を示すことができた。3)高精度の磁場を発生する技術(遮蔽電流磁場の低減):遮蔽電流磁場低減法の1つである細線化後の線材に安定化銅をメッキ(実用上不可欠)したときの不整磁場を低減する新しい電流制御波形を提案しその効果を明らかにした。また無絶縁コイル巻線技術を適用した時の遮蔽電流磁場の影響評価を可能とする計算機プログラムを新たに開発した。

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  • 高温超電導コイルの完全自己保護法の開発

    2018.06 - 2021.03

    東電記念財団  研究助成(基礎研究) 

    植田 浩史

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\10000000 ( Direct expense: \10000000 )

    超電導コイルの運転においては、熱擾乱などによるコイルの焼損を防ぐために、常電導転移の早期検出装置や保護装置が必要となり、超電導コイルの汎用化が難しいのが現状である。そこで、本研究では、熱収縮率と電気抵抗が異なる複数の材料を超電導コイルと機械的・電気的に連結させることで、高温超電導線材で巻線された超電導コイルに対して常電導転移を起こす要因を極力抑えると同時にコイル内で常電導転移が起きた場合でもコイルを完全保護できる装置を開発する。さらに、完全保護装置の設計には、電気回路と熱回路を同時に計算する必要があり、コイルの大きさとコイルが経験する温度変化について正確に計算できる解析コードも開発する。

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  • Analysis B (2024academic year) 1st semester  - 水3~4

  • Calculus B (2024academic year) 1st semester  - 水3~4

  • Advanced Applied Electromagnetics (2024academic year) Late  - 木5~6

  • Advanced Applied Electromagnetics (2024academic year) Late  - 木5~6

  • Introduction to Information Technology, Electrical Engineering, and Mathematical and Data Sciences Program (2024academic year) Third semester  - 水1

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