Research theme for competitive and other funds (11):
2022 - 2025 Improvement Performance of Thermal Conductive Composite Insulating Material Using Electrostatic Adsorption Method
2021 - 2024 Diagnostic Technology for Cytokine Storms Using Quantitative Ultrasound Microscopy with Submicron Resolution
2022 - 2023 フルサイズHVDCジョイントの空間電荷測定
2020 - 2023 Quantitative analysis of developmental neurotoxicity due to embryonic exposure of pesticides
2020 - 2023 部分放電波形の特徴量解析に基づく高電圧絶縁系の絶縁劣化メカニズムの解明
2022 - 2023 細胞観察用超音波顕微鏡の実用化研究
2021 - 2022 各種センサによるCVケーブル終端部部分放電測定に関する基礎研究
2021 - 2022 超音波顕微鏡を用いた皮膚特性の解析
2019 - 2020 細胞内の硬さ分布を定量観察するための三次元超音波顕微鏡の開発
2017 - 2020 Analysis of delayed neuronal developmental disorder using ASD model animals
2018 - 2019 鋼管曲げ加工工程におけるリアルタイム非破壊板厚測定装置の開発
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Papers (659):
Shafira Zahra, Masaki Utagawa, Tomohiro Kawashima, Yoshinobu Murakami, Naohiro Hozumi, Peter Morshuis, Young Il Cho, Yoon Hyoung Kim. Two-dimensional Space Charge Measurement in Cable Joint Model Using the Pulsed Electroacoustic Method. IEEE Transactions on Dielectrics and Electrical Insulation. 2024
Christine Li Mei Lee, Pey Shin Yap, Kiyoshi Umemura, Taichi Shintani, Kazuto Kobayashi, Naohiro Hozumi, Sachiko Yoshida. Noninvasive imaging of rat-derived microglia and its reactivity to inflammatory molecules via acoustic impedance microscopy. Journal of Medical Ultrasonics. 2023. 51. 1. 29-37
Ryo Ikenomata, Tomohiro Kawashima, Naohiro Hozumi, Yoshinobu Murakami. Electrical Properties of Alicyclic Epoxy Resins for Application to Varnish of Rotating Machine Winding. IEEJ Transactions on Electrical and Electronic Engineering. 2023. 18. 10. 1583-1588
Xiaoxin Li, Tomohiro Kawashima, Yoshinobu Murakami, Naohiro Hozumi. Basic study on calibration using waveform variation in space charge measurement by pulsed electroacoustic method. Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 2023. 216. 2
Xiaoxin Li, Tomohiro Kawashima, Yoshinobu Murakami, Naohiro Hozumi. Basic Study on Calibration using Waveform Variation in Space Charge Measurement by Pulsed Electroacoustic Method. IEEJ Transactions on Fundamentals and Materials. 2023. 143. 4. 136-141
川島朋裕, 村上義信, 穂積直裕. Interpretation of classification test of insulation condition using machine learning based on waveform characteristics of partial discharge. 電気学会全国大会講演論文集(CD-ROM). 2024. 2024
川島 朋裕, 矢田 啓悟, 村上 義信, 穂積 直裕. 高電圧誘電スペクトル解析による誘電液体アクチュエータの動作評価に関する基礎検討-Fundamental Study on Operation Evaluation of Dielectric Liquid Actuator Based on High Voltage Dielectric Spectrum Analysis-誘電・絶縁材料研究会・量子化学計算,コンポジット材料,誘電・絶縁特性. 電気学会研究会資料. DEI. 2023. 2023. 81-85. 25-30
賀 新鈞, 川島 朋裕, 穂積 直裕, 村上 義信. パルス静電応力法における電極系の音響特性を考慮した空間電荷分布補正-Signal Recovery of Space Charge Distribution using Acoustic Properties of Electrode System in Pulsed-electroacoustic Method-誘電・絶縁材料/電線・ケーブル合同研究会・ケーブルシステムの絶縁性能と劣化特性,誘電・絶縁材料の電気特性. 電気学会研究会資料. EWC : The Papers of Technical Meeting on Electric Wire and Power Cable, IEE Japan / 電線・ケーブル研究会 [編]. 2023. 2023. 16-29. 31-34
賀 新鈞, 川島 朋裕, 穂積 直裕, 村上 義信. パルス静電応力法における電極系の音響特性を考慮した空間電荷分布補正-Signal Recovery of Space Charge Distribution using Acoustic Properties of Electrode System in Pulsed-electroacoustic Method-誘電・絶縁材料/電線・ケーブル合同研究会・ケーブルシステムの絶縁性能と劣化特性,誘電・絶縁材料の電気特性. 電気学会研究会資料. DEI. 2023. 2023. 67-80. 31-34
角南昴恭, 川島朋裕, 穂積直裕, 村上義信, 塩田裕基, 門脇和丈. Tree Inception Voltgae near Interface in Multi-layer Sample Influenced by Temperature. 電気学会全国大会講演論文集(CD-ROM). 2023. 2023
Assessment of Electron Avalanche Suppression in Electrical Tree based on Waveform Characteristics of Partial Discharge
(IEEJ Transactions on Fundamentals and Materials 2022)
Electrical treeing breakdown characteristics of epoxy/TiO2 nanocomposites influenced by aggregates of nano-sized TiO2
(IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 2022)
Electrical treeing breakdown characteristics of epoxy/spherical boron nitride with card-house structure composites
(IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 2022)
Fundamental study for assessment of surface resistivity based on waveform characteristics of partial discharge
(電気学会研究会資料. DEI 2022)
Space Charge Characteristics in Slide-ring Materials
(電気学会研究会資料. DEI 2021)
2021/03 - IEEE DEIS Japan Chapter IEEE DEIS Japan Chapter Student Best Papaer Presentation Award in International Conference
2020/11 - The 41st Symposium on Ultrasonic Electronics Symposium on Ultrasonic Electronics Best Paper Award Acoustic impedance interpretation of crosssectional human skin by using time and frequency domain deconvolution