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ResearcherID: L-5321-2018

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Employment (1)

The University of Tokyo: Tokyo, JP

(Dept. of Electrical Engineering and Information Systems)
Employment
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Akiko Kumada

Works (31)

Computational Exploration and Experimental Verification for Designing SF6 Alternatives

IEEE Transactions on Dielectrics and Electrical Insulation
2024 | Journal article
DOI: 10.1109/TDEI.2024.3446953
Contributors: Hajime Shimakawa; Takahiro Umemoto; Akiko Kumada; Masahiro Sato
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Crossref

xEMS: Control Towers of Optimal Energy Flow Management for Smart City Realization

2024 | Book chapter
DOI: 10.1007/978-3-031-59846-3_10
Contributors: Bo Jie; Jumpei Baba; Akiko Kumada
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Crossref

Optical diagnostics of vacuum arcs in the process of DC interruption

Journal of Physics D: Applied Physics
2024-12-20 | Journal article
DOI: 10.1088/1361-6463/ad7863
Contributors: Q Tang; Y Maede; M Sato; A Kumada; S Jia
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Effect of O radicals on aramid surface treatment: Experimental and molecular insights

Applied Physics Letters
2024-10-21 | Journal article
DOI: 10.1063/5.0237844
Contributors: Hao-ou Ruan; Hao Du; Takahiro Umemoto; Ryo Ono; Daisuke Katase; Akiko Kumada; Masahiro Sato
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Adequate laser focusing and signal acquisition conditions for 3D measurement of electric-field distribution by the E-FISHG method

Plasma Sources Science and Technology
2024-05-01 | Journal article
DOI: 10.1088/1361-6595/ad4237
Contributors: Masataka Sogame; Shin Nakamura; Masahiro Sato; Takashi Fujii; Akiko Kumada
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Crossref

Electric field measurement in DC corona discharge in atmospheric pressure air using E-FISHG and laser-triggering methods

Plasma Sources Science and Technology
2024-05-01 | Journal article
DOI: 10.1088/1361-6595/ad4670
Contributors: Shin Nakamura; Masataka Sogame; Masahiro Sato; Takashi Fujii; Akiko Kumada
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Modulating thermal and electrical conductivities in polymers: An approach toward extracting molecular design rules through atomistic simulations

Applied Physics Letters
2024-04-29 | Journal article
DOI: 10.1063/5.0198445
Contributors: Hiroto Yokoyama; Hajime Shimakawa; Akiko Kumada; Masahiro Sato
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Crossref

Contribution to V2G System Frequency Regulation by Charging/Discharging Control of Aggregated EV Group

IEEE Transactions on Industry Applications
2024-01 | Journal article
DOI: 10.1109/TIA.2023.3292814
Contributors: Bo Jie; Jumpei Baba; Akiko Kumada
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Crossref

Correction to “Examination of Excitation Temperature of Vacuum Arc Based on Collisional-Radiative Model” [Jun 21 1948-1954]

IEEE Transactions on Plasma Science
2024-01 | Journal article
DOI: 10.1109/TPS.2023.3278352
Contributors: Haruki Ejiri; Ryo Kikuchi; Akiko Kumada; Kunihiko Hidaka; Akihiro Suwa; Yoshihiko Matsui; Masayuki Sakaki
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Extrapolative prediction of small-data molecular property using quantum mechanics-assisted machine learning

npj Computational Materials
2024-01-10 | Journal article
DOI: 10.1038/s41524-023-01194-2
Contributors: Hajime Shimakawa; Akiko Kumada; Masahiro Sato
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Crossref

Atomistic Modeling of Charge Injection Into Dielectric Polymers

IEEE Transactions on Dielectrics and Electrical Insulation
2023-12 | Journal article
DOI: 10.1109/TDEI.2023.3324894
Contributors: Masahiro Sato; Akiko Kumada; Kunihiko Hidaka
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Crossref

Probing the Band Alignment at the Au/Polymer Interface

IEEE Transactions on Dielectrics and Electrical Insulation
2023-12 | Journal article
DOI: 10.1109/TDEI.2023.3330447
Contributors: D. Katase; H. Suzuki; M. Kobayashi; A. Kumada; M. Sato
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Determination of Band Alignment at Au/PTFE and Au/PP Interfaces by First-Principles Calculations and XPS

IEEE Transactions on Dielectrics and Electrical Insulation
2023-10 | Journal article
DOI: 10.1109/TDEI.2023.3309286
Contributors: R. Yoshinaga; H. Suzuki; R. Okano; M. Kobayashi; A. Kumada; M. Sato
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Crossref

Dependence of electron and neutral vapor density distributions on anode mode of high current vacuum arc

Journal of Physics D: Applied Physics
2023-10-26 | Journal article
DOI: 10.1088/1361-6463/ace78a
Contributors: Yuichi Hirano; Ryo Kikuchi; Haruki Ejiri; Akiko Kumada; Kunihiko Hidaka; Yuki Inada
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Crossref

Direct measurement of charge trap depth in polymer nanocomposites

Journal of Physics D: Applied Physics
2023-08-10 | Journal article
DOI: 10.1088/1361-6463/acd1fa
Contributors: Haruto Suzuki; Yugo Kubo; Yoitsu Sekiguchi; Masaki Kobayashi; Akiko Kumada; Masahiro Sato
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Crossref

2-D Dynamic Excitation Temperature of Cu+ Under Diffuse Mode in Vacuum Arc

IEEE Transactions on Plasma Science
2023-06 | Journal article
DOI: 10.1109/TPS.2023.3277199
Contributors: Yandi Lin; Yuichi Hirano; Masahiro Sato; Akiko Kumada; Kunihiko Hidaka; Kazuya Kato; Kenta Yamamura
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Crossref

Multi-Scale Modeling of Dielectric Polarization in Polymer/Ferroelectric Composites

IEEE Transactions on Dielectrics and Electrical Insulation
2023-04 | Journal article
DOI: 10.1109/TDEI.2022.3222746
Contributors: Masahiro Sato; Akiko Kumada; Kunihiko Hidaka; Takanori Yasuoka; Yoshikazu Hoshina; Motoharu Shiiki
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Crossref

Temperature Dependence of Surface Charge Accumulation on DC-GIS Insulating Spacer

IEEE Transactions on Power Delivery
2022-12 | Journal article
DOI: 10.1109/TPWRD.2022.3150767
Contributors: Hajime Shimakawa; Masahiro Sato; Akiko Kumada; Kunihiko Hidaka; Takanori Yasuoka; Yoshikazu Hoshina; Motoharu Shiiki
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Crossref

Optimization of beam shaping and error quantification of calibration approach using E-FISHG based electric field measurements

Plasma Sources Science and Technology
2022-11-01 | Journal article
DOI: 10.1088/1361-6595/aca4f1
Contributors: Shin Nakamura; Masahiro Sato; Takashi Fujii; Akiko Kumada
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Crossref

Systematic 1D electric field induced second harmonic measurement on primary-to-secondary transition phase of positive streamer discharge in atmospheric-pressure air

Journal of Physics D: Applied Physics
2022-09-22 | Journal article
DOI: 10.1088/1361-6463/ac7b54
Contributors: Yuki Inada; Tatsutoshi Shioda; Ryosuke Nakamura; Mitsuaki Maeyama; Akiko Kumada; Shin Nakamura; Ryo Ono
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Crossref

Prediction of Impulse Breakdown Voltage in Dry Air at High Pressure Using Volume-Time Theory

IEEE Transactions on Dielectrics and Electrical Insulation
2022-08 | Journal article
DOI: 10.1109/TDEI.2022.3183651
Contributors: Haruto Suzuki; Masahiro Sato; Akiko Kumada; Kunihiko Hidaka; Sho Takano; Yuji Hayase; Keisuke Yamashiro; Tetsumi Takano
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Crossref

Molecular Dynamics Study of Ionic Conduction in Epoxy Resin

IEEE Transactions on Dielectrics and Electrical Insulation
2022-02 | Journal article
DOI: 10.1109/TDEI.2022.3148462
Contributors: Haruto Suzuki; Hajime Shimakawa; Akiko Kumada; Masahiro Sato
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Crossref

Recovery of Withstanding Voltage After Direct Current Interruption Using Vacuum Circuit Breakers

IEEE Transactions on Plasma Science
2021-12 | Journal article
DOI: 10.1109/TPS.2021.3123068
Contributors: Haruki Ejiri; Ryo Kikuchi; Akiko Kumada; Kunihiko Hidaka; Akihiro Suwa; Yoshihiko Matsui; Masayuki Sakaki
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Electric-field-profile measurement along a probing laser path based on electric-field-induced second-harmonic generation

Physical Review A
2021-11-08 | Journal article
DOI: 10.1103/PhysRevA.104.053511
Contributors: Shin Nakamura; Masahiro Sato; Takashi Fujii; Akiko Kumada; Yuji Oishi
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Crossref

Transient Recovery Voltage in Direct Current Circuit Breaker With Active Current Injection

IEEE Transactions on Power Delivery
2021-10 | Journal article
DOI: 10.1109/TPWRD.2021.3099340
Contributors: Haruki Ejiri; Akiko Kumada
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Crossref

Examination of Excitation Temperature of Vacuum Arc Based on Collisional-Radiative Model

IEEE Transactions on Plasma Science
2021-06 | Journal article
DOI: 10.1109/TPS.2021.3077972
Contributors: Haruki Ejiri; Ryo Kikuchi; Akiko Kumada; Kunihiko Hidaka; Akihiro Suwa; Yoshihiko Matsui; Masayuki Sakaki
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Crossref

Excitation Temperature Imaging of Vacuum Arc Based on Two-Line Radiance Method

IEEE Transactions on Plasma Science
2021-06 | Journal article
DOI: 10.1109/TPS.2021.3077971
Contributors: Haruki Ejiri; Ryo Kikuchi; Akiko Kumada; Kunihiko Hidaka; Akihiro Suwa; Yoshihiko Matsui; Masayuki Sakaki
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Crossref

Particle-In-Cell Simulation for Breakdown Initiating Process in Vacuum

2020 | Book chapter
DOI: 10.1007/978-3-030-31680-8_36
Contributors: Haruki Ejiri; Akiko Kumada; Kunihiko Hidaka
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Crossref

Influence of CuCr electrode composition on 2D electron and metal vapor density distribution over vacuum arc

Journal of Physics D: Applied Physics
2020-07-22 | Journal article
DOI: 10.1088/1361-6463/ab83bd
Contributors: Yuki Inada; Ryo Kikuchi; Hiroyuki Nagai; Akiko Kumada; Kunihiko Hidaka; Mitsuaki Maeyama
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Crossref

Two-dimensional temperature distribution of air arc commutating to arc runner

Plasma Sources Science and Technology
2019-09-24 | Journal article
DOI: 10.1088/1361-6595/ab3c7d
Contributors: Akiko Kumada; Taiga Nagata; Kunihiko Hidaka; Shinya Watanabe; Kentaro Kokura
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Crossref

Two-dimensional electron density measurement of pulsed positive secondary streamer discharge in atmospheric-pressure air

Journal of Physics D: Applied Physics
2019-05-01 | Journal article
DOI: 10.1088/1361-6463/ab0725
Contributors: Yuki Inada; Atsushi Komuro; Ryo Ono; Akiko Kumada; Kunihiko Hidaka; Mitsuaki Maeyama
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Crossref
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