• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of regional healthcare-management-system based on monitoring technology

Research Project

Project/Area Number 17K01245
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Social systems engineering/Safety system
Research InstitutionThe University of Tokyo

Principal Investigator

Shimono Ryoko  東京大学, 総括プロジェクト機構, 特任助教 (60609361)

Co-Investigator(Kenkyū-buntansha) 藤原 幸一  名古屋大学, 工学研究科, 准教授 (10642514)
山川 俊貴  熊本大学, 大学院先端科学研究部(工), 准教授 (60510419)
菊池 康紀  東京大学, 未来ビジョン研究センター, 准教授 (70545649)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords医療社会システム / 事業プロセス / 品質管理 / 地域実装 / 産学公連携 / 生活習慣病管理 / 健康増進事業 / インセンティブ / 地域 / 社会実装 / 生活習慣病 / 健康行動インセンティブ / 医療社会システム工学 / 保健医療政策 / システム設計 / システム解析 / 生体センシング / 健康 / 医療
Outline of Final Research Achievements

We aim a development of healthcare-management-system for preventing lifestyle related diseases and analyze the plural aspects for effectiveness of implementing monitoring technology and health promotion projects. We proceeded research activities through collaboration with regional player such as medical institutes and local governments for increasing feasibility. In actual, we delivered the analyzed results contributing for project implementation for Specific health checkups and Specific health guidance, for health promotion event, incentive point earning for health behavior and so on.

Academic Significance and Societal Importance of the Research Achievements

本研究では、主に地域で実施されている健康増進事業を対象として、健康状態や行動における効果、資源活用、社会経済性など多面的な分析を行った。分析結果は、情報提供などを強化すべき対象者層の特定やその内容の指定といった直ちに当該事業の運営に反映できるものに加え、地域産業における経済波及効果など広範な視点から事業計画に反映されるものがあった。このように当事者(事業の実施主体)にフィードバックできるような分析結果を提示している点で有意義といえる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (52 results)

All 2020 2019 2018 2017

All Journal Article (20 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 19 results,  Open Access: 13 results) Presentation (32 results) (of which Int'l Joint Research: 24 results,  Invited: 4 results)

  • [Journal Article] Input-Output Analysis of a Health Promotion Event in Wakayama Prefecture2020

    • Author(s)
      兵法彩,下野僚子,堀内美佐,大久保達也,菊池康紀
    • Journal Title

      Journal of Life Cycle Assessment, Japan

      Volume: 16 Issue: 2 Pages: 130-142

    • DOI

      10.3370/lca.16.130

    • NAID

      130007835933

    • ISSN
      1880-2761, 1881-0519
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 健康づくりに関する啓発イベントの評価に伴う作業負担の定量化2020

    • Author(s)
      堀内美佐,兵法彩,下野僚子,大久保達也,菊池康紀
    • Journal Title

      保健師ジャーナル

      Volume: 採択済

    • NAID

      40022297328

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Risk factors for late-onset lower limb lymphedema after gynecological cancer treatment: a multi-institutional retrospective study2020

    • Author(s)
      Masato Yoshihara, Ryoko Shimono, Satoko Tsuru, Kaoru Kitamura, Hiromi Sakuda, Hidenori Oguchi, Akio Hirota
    • Journal Title

      European Journal of Surgical Oncology

      Volume: Accepted Issue: 7 Pages: 1334-1338

    • DOI

      10.1016/j.ejso.2020.01.033

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 臨床検査業務における特性要因図を用いた力量評価項目導出方法の有用性検証2020

    • Author(s)
      下野僚子,秋永理恵,水流聡子
    • Journal Title

      品質

      Volume: 採択済

    • NAID

      130007931558

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 採血教育と採血手技の評価2020

    • Author(s)
      秋永理恵,稲葉則和,下野僚子
    • Journal Title

      検査と技術

      Volume: 48(3) Pages: 324-329

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Epileptic Seizure Suppression by Focal Brain Cooling With Recirculating Coolant Cooling System: Modeling and Simulation2019

    • Author(s)
      Hata Kei、Fujiwara Koichi、Inoue Takao、Abe Takuto、Kubo Takatomi、Yamakawa Toshitaka、Nomura Sadahiro、Imoto Hirochika、Suzuki Michiyasu、Kano Manabu
    • Journal Title

      IEEE Transactions on Neural Systems and Rehabilitation Engineering

      Volume: 27 Issue: 2 Pages: 162-171

    • DOI

      10.1109/tnsre.2019.2891090

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] てんかん発作検知・予知に関する最新の研究動向2019

    • Author(s)
      宮島 美穂, 藤原 幸一, 山川 俊貴
    • Journal Title

      クリニシアン

      Volume: Vol.66, No.637 Pages: 157-153

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Emotional Contagion From Humans to Dogs Is Facilitated by Duration of Ownership2019

    • Author(s)
      Katayama Maki、Kubo Takatomi、Yamakawa Toshitaka、Fujiwara Koichi、Nomoto Kensaku、Ikeda Kazushi、Mogi Kazutaka、Nagasawa Miho、Kikusui Takefumi
    • Journal Title

      Frontiers in Psychology

      Volume: 10 Pages: 1678-1678

    • DOI

      10.3389/fpsyg.2019.01678

    • NAID

      120006784467

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Heart Rate Variability-based Driver Drowsiness Detection and its Validation with EEG2018

    • Author(s)
      Fujiwara Koichi、Abe Erika、Kamata Keisuke、Nakayama Chikao、Suzuki Yoko、Yamakawa Toshitaka、Hiraoka Toshihiro、Kano Manabu、Sumi Yukiyoshi、Masuda Fumi、Matsuo Masahiro、Kadotani Hiroshi
    • Journal Title

      IEEE Transactions on Biomedical Engineering

      Volume: 1 Issue: 6 Pages: 1-1

    • DOI

      10.1109/tbme.2018.2879346

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Is hemifacial spasm affected by changes in the heart rate? - A study using heart rate variability analysis2018

    • Author(s)
      T. Hamasaki, M. Morioka, K. Fujiwara, C. Nakayama, M. Harada, K. Sakata, Y. Hasegawa, T. Yamakawa, K. Yamada: A. Mukasa
    • Journal Title

      Clinical Neurophysiology

      Volume: 129(10) Pages: 2205-2214

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Schemic stroke detection by analyzing heart rate variability in rat middle cerebral artery occlusion model2018

    • Author(s)
      T. Kodama, K. Kamata, K. Fujiwara, M. Kano, T. Yamakawa, I. Yuki. Y. Murayama
    • Journal Title

      IEEE Transactions on Neural Systems & Rehabilitation Engineering

      Volume: 26(6) Pages: 1152-1160

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 外来患者への採血業務改善のための採血難易度と採血技術レベルのマッチング2017

    • Author(s)
      秋永理恵,稲葉則和,加藤省吾,下野僚子,水流聡子
    • Journal Title

      日本臨床検査自動化学会会誌

      Volume: 42 Pages: 599-606

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] <b>Method for Observation of Processes in Invasive Medical Techniques</b>2017

    • Author(s)
      Shimono Ryoko、Fujiwara Masako、Tsuru Satoko、Iizuka Yoshinori
    • Journal Title

      Total Quality Science

      Volume: 3 Issue: 2 Pages: 69-77

    • DOI

      10.17929/tqs.3.69

    • NAID

      130006316137

    • ISSN
      2189-3195
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ウェアラブルデバイスとスマートフォンを用いたてんかん発作予知技術2017

    • Author(s)
      藤原 幸一, 宮島 美穂,山川 俊貴
    • Journal Title

      Epilepsy

      Volume: 11 Pages: 7-13

    • NAID

      40021393720

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Epileptic Seizure Prediction Technology by Integrating Multivariate Statistical Process Control and Heart Rate Variability Analysis2017

    • Author(s)
      藤原 幸一, 宮島 美穂, 鈴木 陽子,山川 俊貴, 加納 学
    • Journal Title

      Journal of The Society of Instrument and Control Engineers

      Volume: 56 Issue: 7 Pages: 526-529

    • DOI

      10.11499/sicejl.56.526

    • NAID

      130005825168

    • ISSN
      0453-4662, 1883-8170
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 運転中の能動的行為によるドライバの覚醒維持効果と運転安全性2017

    • Author(s)
      伊部達朗, 平岡敏洋, 阿部恵里花, 藤原幸一,山川俊貴
    • Journal Title

      自動車技術会論文集

      Volume: 48 Pages: 463-469

    • NAID

      130006734236

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ヘルスモニタリングのための心拍変動解析2017

    • Author(s)
      藤原幸一
    • Journal Title

      システム/制御/情報

      Volume: 61 Pages: 381-386

    • NAID

      130006516891

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 心拍変動解析技術を用いたドライバモニタリング技術2017

    • Author(s)
      藤原幸一
    • Journal Title

      車載テクノロジー

      Volume: 4 Pages: 9-15

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differential Temperature Sensitivity of Synaptic and Firing Processes in a Neural Mass Model of Epileptic Discharges Explains Heterogeneous Response of Experimental Epilepsy to Focal Brain Cooling2017

    • Author(s)
      Jaymar Soriano, Takatomi Kubo, Takao Inoue, Hiroyuki Kida,Toshitaka Yamakawa, Michiyasu Suzuki, Kazushi Ikeda
    • Journal Title

      PLoS Computational Biology

      Volume: 13 Issue: 10 Pages: e1005736-e1005736

    • DOI

      10.1371/journal.pcbi.1005736

    • NAID

      120006354240

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Epidural focal brain cooling abolishes neocortical seizures in cats and non-human primates2017

    • Author(s)
      Inoue Takao、Fujii Masami、Kida Hiroyuki、Yamakawa Toshitaka、Maruta Yuichi、Tokiwa Tatsuji、He Yeting、Nomura Sadahiro、Owada Yuji、Yamakawa Takeshi、Suzuki Michiyasu
    • Journal Title

      Neuroscience Research

      Volume: 122 Pages: 35-44

    • DOI

      10.1016/j.neures.2017.04.007

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 健康管理に関する自治体事業の経済波及効果の分析2019

    • Author(s)
      三浦友裕、碓井政貴、大西貴子、永瀬寛典、山田博己、山田真弘、下野僚子、兵法彩、堀内美佐、菊池康紀
    • Organizer
      第14回日本LCA学会研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アンケート調査を活用した住民向けイベントの実施効果分析2019

    • Author(s)
      兵法彩、下野僚子、堀内美佐、大久保達也、菊池康紀
    • Organizer
      第14回日本LCA学会研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 自治体による健康行動へのインセンティブ付与事業における住民特性の分析2019

    • Author(s)
      下野僚子、吉田有紀、出口由依、菊池康紀、大久保達也
    • Organizer
      日本品質管理学会第119回研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 健康関連イベント来場者の意識調査にかかる作業負担の分析2019

    • Author(s)
      堀内美佐、兵法彩、下野僚子、大久保達也、菊池康紀
    • Organizer
      第78回日本公衆衛生学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 自治体による健康行動へのインセンティブ付与事業における住民特性の分析2019

    • Author(s)
      下野僚子、吉田有紀、出口由依、菊池康紀、大久保達也
    • Organizer
      第57回日本医療・病院管理学会学術総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Quality Improvement of Blood Drawing Through Targeted Training Using an Operation Support System2019

    • Author(s)
      Ryoko Shimono, Rie Akinaga, Norikazu Inaba
    • Organizer
      17th World Congress on Medical and Health Informatics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Individualized Training System through Data Acquisition and Analysis for Quality Assurance in Healthcare Procedure -Case Study in Blood Drawing-2019

    • Author(s)
      Ryoko Shimono, Kohei Fukumoto, Yuya Higuchi, Rie Akinaga, Norikazu Inaba
    • Organizer
      17th Asian Network for Quality Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of a Sleep Apnea Detection Algorithm? Using Long Short-Term Memory and Heart Rate Variability2019

    • Author(s)
      A. Iwasaki, C. Nakaysma, K. Fujiwara, Y. Sumi, M. Matsuo, M. Kano, H. Kadotani
    • Organizer
      IEEE EMBC 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Wearable and Implantable Electronics for Health and Clinical Care2019

    • Author(s)
      Toshitaka Yamakawa
    • Organizer
      5th International Conference on Nanoscience and Nanotechnology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An open platform for transformation in regional energy systems towards sustainability2019

    • Author(s)
      Yasunori Kikuchi
    • Organizer
      Tokyo Forum
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An open platform for transformation in regional energy systems towards sustainability2019

    • Author(s)
      Yasunori Kikuchi
    • Organizer
      The Network for Advancing and Evaluating the Societal Impact of Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An open platform for transformation in regional energy systems towards sustainability2019

    • Author(s)
      Yasunori Kikuchi
    • Organizer
      UTokyo-UNIDO Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 採血業務における刺し直し低減のための血管状態に着目した教育2018

    • Author(s)
      下野僚子、秋永理恵、稲葉則和
    • Organizer
      日本品質管理学会第116回研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 採血における刺直低減をめざした血管状態に着目した教育方法2018

    • Author(s)
      下野僚子、秋永理恵、稲葉則和
    • Organizer
      第56回日本医療・病院管理学会学術総会
    • Related Report
      2018 Research-status Report
  • [Presentation] CFD-Based Design of Focal Brain Cooling System for Suppressing Epileptic Seizures2018

    • Author(s)
      K. Hata, T. Abe, T. Inoue, K. Fujiwara, T. Kubo, T. Yamakawa, S. Nomura, H. Imoto, M. Suzuki, and M. Kano
    • Organizer
      PSE World Congress
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of False Heart Rate Feedback System for Improving Game Experience2018

    • Author(s)
      S. Ogawa, K. Fujiwara, E. Abe, T. Yamakawa, and M. Kano
    • Organizer
      IEEE ICCE2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Wearable ECG Monitoring System with Garment-type Sensor for Real-time Epileptic Seizure Prediction2018

    • Author(s)
      Miho Miyajima,?Toshitaka Yamakawa, Koichi Fujiwara, Fumiya Sakane, Yoko Suzuki, Hiromichi Osoegawa, Michiyoshi Buniu, Manabu Kano, Taketoshi Maehara
    • Organizer
      IEEE EMBC 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Seizure Prediction Algorithms for Realizing Closed-Loop Treatment of Refractory Epilepsy2018

    • Author(s)
      Fumiya Sakane, Koichi Fujiwara, Miho Miyajima, Yoko Suzuki,?Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara
    • Organizer
      IEEE EMBC 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Generalized Epileptic Seizure Prediction and Mechanism Analysis by Using Heart Rate Variability2018

    • Author(s)
      Fumiya Sakane, Koichi Fujiwara, Miho Miyajima, Yoko Suzuki,?Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara, "
    • Organizer
      IEEE BHI 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluating the Improvement Factor of R-Wave Detection Rate after Gain Readjustment2018

    • Author(s)
      Kento Shoji,?Toshitaka Yamakawa, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Tadashi Sakata, Yuichi Ueda
    • Organizer
      IEEE BHI 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of False Heart Rate Feedback System for Improving Game Experience2018

    • Author(s)
      Sayaka Ogawa, Koichi Fujiwara,?Toshitaka Yamakawa, Erika Abe, Manabu Kano
    • Organizer
      IEEE ICCE 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Generalized Epileptic Seizure Prediction and Mechanism Analysis by Using Heart Rate Variability2018

    • Author(s)
      Fumiya Sakane, Koichi Fujiwara, Miho Miyajima, Yoko Suzuki,Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara
    • Organizer
      IEEE BHI 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Optimal Lead Selection Method for Improving Detection Rate of RRI from Multiple Leads Electrocardiogram2018

    • Author(s)
      Shun Sakai, Kento Shoji,Toshitaka Yamakawa, Tadashi Sakata, Yuichi Ueda
    • Organizer
      IEEE BHI 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluating the Improvement Factor of R-Wave Detection Rate after Gain Readjustment2018

    • Author(s)
      Kento Shoji, Toshitaka Yamakawa, Koichi Fujiwara, Manabu Kano, Miho Miyajima, Tadashi Sakata, Yuichi Ueda
    • Organizer
      IEEE BHI 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of False Heart Rate Feedback System for Improving Game Experience2018

    • Author(s)
      Sayaka Ogawa, Koichi Fujiwara, Toshitaka Yamakawa, Erika Abe, Manabu Kano
    • Organizer
      IEEE ICCE 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 臨床検査の質保証のための力量評価システムの構築―力量向上に有効な評価項目の導出と運用―2017

    • Author(s)
      下野僚子、秋永理恵、水流聡子
    • Organizer
      日本品質管理学会 第113回研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] Validation of HRV-Based Drowsy-Driving Detection Method with EEG Sleep Stage Classification2017

    • Author(s)
      T. Yamakawa, K. Fujiwara, T. Hiraoka, M. Kano, Y. Sumi, F. Masuda, M. Matsuo, H. Kadotani
    • Organizer
      World Sleep Congress 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Missing RRIi Interpolation Algorithm Using Just-In-Time Modeling Framework and Its Application to HRV-Based Drowsy Driving Detection2017

    • Author(s)
      Koichi Fujiwara, T. Kinoshita, Keisuke Kamata, Toshitaka Yamakawa, Manabu Kano
    • Organizer
      World Sleep Congress 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Estimation of Skin Blood Flow Change in Recumbent Position using Surface-Type Photoplethysmography Sensor2017

    • Author(s)
      Sayaka Ogawa, Koichi Fujiwara, Toshitaka Yamakawa, Hiroshi Kadotani, Masahiro Matsuo, Manabu Kano
    • Organizer
      IEEE EMBC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] A New Infarction Detection Method based on Heart Rate Variability in Rat Middle Cerebral Artery Occlusion Model2017

    • Author(s)
      Tomonobu Kodama, Keisuke Kamata, Koichi Fujiwara, Manabu Kano, Toshitaka Yamakawa, Ichiro Yuki, Yuichi Murayama
    • Organizer
      IEEE EMBC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Seizure Prediction and Mechanism Analysis of Generalized Epilepsy based on Heart Rate Variability2017

    • Author(s)
      Fumiya Sakane, Koichi Fujiwara, Miho Miyajima, Yoko Suzuki, Toshitaka Yamakawa, Manabu Kano, Taketoshi Maehara
    • Organizer
      IEEE EMBC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Automatic Selection Method of Optimal Lead for R-R Interval Measurement from Multiple Leads Electrocardiogram2017

    • Author(s)
      Shun Sakai, Kento Shoji, Toshitaka Yamakawa, Tadashi Sakata, Yuichi Ueda
    • Organizer
      IEEE LSC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi