Faculty Profiles - YOKOMIZU Yasunobu

Papers - YOKOMIZU Yasunobu

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Fundamental Investigation on DC Arc Formation and Extinction in Separation Process of Brush and Commutator Segment

Oshima K., Yokomizu Y., Fukutsuka T.

2017 4TH INTERNATIONAL CONFERENCE ON ELECTRIC POWER EQUIPMENT-SWITCHING TECHNOLOGY (ICEPE-ST) page： 582-585 2017

Preliminary Experiment on Development of Non-Contact Measuring Method of Arc Potential -Simultaneous Measurement of Potential and Radius-

Minami S., Yokomizu Y., Matsumura T., Majima A., Uchii T., Suzuki K.

2017 4TH INTERNATIONAL CONFERENCE ON ELECTRIC POWER EQUIPMENT-SWITCHING TECHNOLOGY (ICEPE-ST) page： 795-798 2017

A Study on Direct Current Interruption Process by Using Mayr Arc Model

A. Tsusaka, K. Okuda, K. Zochi, K. Hasegawa, T. Matsumura, K.Yukita, Y.Goto, and Y.Yokomizu

Proceedings of International Workshop on Green Energy Systems and Devices page： x 2017

Experimental Study on Arc-Column Resistance Rise Process in Interruption for Various Direct Currents

M. Ito, Y. Yokomizu, K. Oshima, and T. Matsumura.

Joint Conference of IWHV2016 & JK 2016 on ED\&HVE. IWHV2016:~10th International Workshop on High Voltage Engineering, JK2016 on ED\&HVE:~2016 Japan-Korea Joint Symposium on Electrical Discharge and High Voltage Engineering page： ED-16-99/SP-16-28/HV-16-8 2016.11

Approach toward Deriving Time Transition of Electron Density in SF₆ Gas under Electric Field Application Reviewed

Proc. of the 21st International Conference on Gas Discharges and Their Applications page： 181-184 2016.9

Fundamental Characteristics of Arc Discharge in Silica Sand during Direct Current Breaking Process Reviewed

Y. Ueda, Y. Yokomizu, T. Matsumura, and S. Takagi.

Proc. of the 21st International Conference on Gas Discharges and Their Applications page： 177-180 2016.9

Fundamental Current Interruption Experiment on Model Low-Voltage DC Circuit Breaker Composed of SiC-MOSFET

Y. Yokomizu, K. Tamao, R. Ohashi, and T. Matsumura

The International Conference on Electrical Engineering 2016 page： ID 90328 2016.7

Fundamental Approach to Direct-Current Breaking Process in Terms of Transient Electric-Field Strength of Arc Column

Y. Yokomizu, M. Ito, K. Oshima, and T. Matsumura

The 9th International Workshop on Plasma Application and Hybrid Functionally Materials (Bangkok) page： 51-52 2016.3

Particle Composition and Heat Capacity of High Temperature SF₆ Present at Constant Volume: Discussion on Formula Expressing Relationship Reviewed

Y. Yokomizu, T. Kobayashi and T. Matsumura

IEEJ Transactions on Electrical and Electronic Engineering Vol. 10 ( 6 ) page： 683-688 2015.11

Estimation of Sparking Voltage of High Temperature Nitrogen and Its Dependence on Interelectrode Distance

Y. Yokomizu, H. Sugimoto, A. Makiyama and T. Matsumura.

2015 Asia-Pacific International Conference on Lightning (APL) page： 849-852 2015.6

Sparking Electric-Field Strength of High Temperature Nitrogen Gas Subjected to Secondary Electron Emission from Cathode Reviewed

T. Matsumura, Y. Yokomizu and A. Makiyama

page： 57-58 2015.3

Preliminary Experiment on Non-Contact Measurement of Potential and Resistance Distribution along Interrupting Arc

Y. Yokomizu, Y. Kawasaki, T. Matsumura, A. Majima, T. Uchii and K. Suzuki.

Proceedings of The 22th Annual Meeting of Institute of Applied Plasma Science, The 8th International Workshop on Plasma Application and Hybrid Functionally Materials page： 59-60 2015.3

Derivation of Sparking Voltage of High Temperature Nitrogen Gas at 0.1 and 0.6 MPa Reviewed

Y.Yokomizu, H. Sugimoto and T. Matsumura.

Frontier of Applied Plasma Technology Vol. 8 ( 1 ) page： 1-6 2015

Rising Effect of CO₂-O₂ Arc Extinguishing Limitation due to Increase in Gas-flow Rate

Y. Yokomizu, R. Fujita and T. Matsumura

Proceedings of The 21th Annual Meeting of Institute of Applied Plasma Science, The 7th International Workshop on Plasma Application and Hybrid Functionally Materials page： 69-70 2014.3

A Fundamental Approach to Applying an Insulated-Gate Bipolar Transistor to Current Interruption in a Low-Voltage DC Delivery System

Y. Yokomizu, T. Hayase, Y. Meguro, and T. Matsumura

page： DOI: 10.1002/etep.1830 2014.1

`Ionization Coefficient and Sparking Voltage in Argon at Temperatures of 300-6,000 K

Y. Yokomizu, K. Naganuma and T. Matsumura

Proceedings of The 21th Annual Meeting of Institute of Applied Plasma Science, The 7th International Workshop on Plasma Application and Hybrid Functionally Materials (Hong Kong) page： 67-68 2014

High-Temperature Properties of CO₂ Mixed with N₂-- Comparison to CO₂ Mixture with O₂ -- Reviewed

電気学会論文誌B Vol. 133 ( 11 ) page： 867-874 2013.11

High-Temperature Properties of CO₂ Mixed with N₂ - Comparison to CO₂ Mixture with O₂ - Reviewed

Y. Yokomizu, Y. Hayashi, T. Matsumura, A. Majima, T. Uchii and K. Suzuki.

Vol. 133 ( 11 ) page： 858-866 2013.11

Predominant Particles in SF₆-CO₂ Mixture at Temperatures of 300-30,000 K Reviewed

Y. Yokomizu, T. Matsumura, M. Sato and K. Horinouchi

Vol. 133 ( 11 ) page： 818-825 2013.11

Effect of N₂ and O₂ Additions to CO₂ on Extinction Limitation of Axial Gas Flow Arc Reviewed

Y. Yokomizu, Y. Hayashi, T. Matsumura, A. Majima, T. Uchii and K. Suzuki.

Vol. 133 ( 11 ) page： 858-866 2013.11

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Papers - YOKOMIZU Yasunobu