Papers - SAKODA Tatsuya
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マンゴーに発生する病害にプラズマ処理が与える影響
堂園大雅, 富永大, 迫田達也, 溝口則和, 櫛間義幸
宮崎大学工学部紀要 45 193 - 198 2016.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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ポリマー材料の傾斜角度がポリマー表面の放電特性に与える影響
出口竜也, 枦健一, 三宅琢磨, 迫田達也, 阿嘉良昌, 安食富和, 深野孝人
出宮崎大学工学部紀要 45 187 - 192 2016.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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熱電発電システムにおける開放電圧を用いた最大出力点の探索法 Reviewed
奥将俊，石津智子，田島大輔，迫田達也，林則行，穂高一条
太陽エネルギー 42 ( 4 ) 49 - 55 2016.4
Language：Japanese Publishing type：Research paper (scientific journal)
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電力ケーブル接続部に有効な周波数加速劣化試験の基礎的検討 Reviewed
井平学, 平島俊紀, 三宅琢磨, 迫田達也, 中野亮介, 鎌田文麿, 西昌美
電気学会論文誌A 136 ( 3 ) 241 - 242 2016.3
Language：Japanese Publishing type：Research paper (scientific journal)
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Plasma Sterilization of Anthrax Pathogen in Water Mist
Tominaga M., Tanaka T., Sakoda T., Mizoguchi N., Kushima Y.
Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015 690 - 694 2016.1
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015
© 2015 IEEE. Miyazaki prefecture in Japan promotes agricultural food industry in recent year. One of the activities is promotion of agricultural and livestock products. However, Miyazaki prefecture is very far from large-scale consumption areas such as Tokyo and Osaka. To keep freshness of agricultural and livestock products during their transport is a serious problem from a viewing of putrefaction due to blight outbreak. Apple Mango has been a very famous and representative product in Miyazaki prefecture and it has successfully continued to make a good profit. However, fruit rot disease such as Anthrax Pathogen after harvest is serious [1] [2] [3]. Therefore, a sterilization technique is strongly required. We here generated the dielectric barrier discharge plasma in water mist, which may possible to sterilize the whole of greengrocery because of its high diffusibility. We examined fungicidal activity against Colletotrichum sp.
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Examination of B. Subtilis Spore Sterilization by an Underwater-Ar-Plasma
Hamada Toshiyuki, Mine Taiki, Sakoda Tatsuya
IEEJ Transactions on Fundamentals and Materials 136 ( 1 ) 64 - 65 2016.1
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
Advanced oxidation process (AOP) with hydroxyl radicals (OH) is considered to be useful for sterilization; therefore, we have proposed an underwater plasma source with a porous glass membrane which functioned in bubble supply and the formation of micro-discharges. In this study, we first examined whether B. subtilis spores could be sterilized by the underwater plasma of which operating gas was argon. Next, similar experiment was conducted by using mannitol, and the numbers of colonies were compared. The obtained results showed that OH radicals generated at gas-liquid interface were responsible for the sterilization.
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多孔質膜利用の水中アルゴンプラズマによる芽胞菌殺菌機構の考察 Reviewed
濱田俊之, 峰大樹, 迫田 達也
電気学会論文誌A 136 ( 1 ) 64 - 65 2016.1
Language：Japanese Publishing type：Research paper (scientific journal)
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Basic Study on Frequency Accelerated Aging Test for Joint Section of XLPE Cable
Ihira Manabu, Hirashima Toshiki, Miyake Takuma, Sakoda Tatsuya, Nakano Ryosuke, Kamata Fumimaro, Nishi Masami
The transactions of the Institute of Electrical Engineers of Japan.A 136 ( 3 ) 155 - 156 2016
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
We studied usefulness of a frequency accelerated aging test by paying attention to the number of partial discharge (PD) pulses and the accumulated PD charges per a cycle of frequency of applied voltage. The results shows that a frequency accelerated aging test is useful when the accumulated PD charges per a cycle of frequency of applied voltage with higher than PD inception voltage are the almost same as that at a commercial frequency of 60 Hz. If applied frequency is 1 kHz, an accelerated aging test with 16.6 times faster than that for 60 Hz can be achieved.
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Tominaga Masaru, Tanaka Toshiyuki, Sakoda Tatsuya, Mizoguchi Norikazu, Kushima Yoshiyuki
IEEJ Transactions on Fundamentals and Materials 136 ( 11 ) 726 - 727 2016
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
<p>To investigate optimal concentration of O<sub>3</sub> and process time for sterilization of conidiospore of <i>Colletotrichum </i>sp., we examined sterilization by using CT (product of concentration and process time) as a sterilization index. The results showed that the usual CT was not be useful for interpreting sterilization.</p>
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Characteristics of an underwater plasma source with a porous glass membrane
Shiomitsu E., Sakoda T.
Electronics and Communications in Japan 98 ( 12 ) 72 - 79 2015.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Electronics and Communications in Japan
© 2015 Wiley Periodicals, Inc. The advanced oxidation process (AOP) with hydroxyl radicals (OH) is considered to be useful for water purification through oxidation; therefore, we proposed an underwater plasma source with a porous glass membrane which performed the functions of bubble supply and the formation of microdischarges. We observed bubble formation and light emission from discharges on the surface of the membrane using a high-speed camera and a spectroscope, respectively. In addition, the dependence of gas pressure on the generation of OH radical and the decomposition of recalcitrant organic matter were examined. The obtained results showed that AOP may be more effective when the operating gas pressure is set higher than a pressure which could form bubbles.
DOI： 10.1002/ecj.11772
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Chemical Analysis of Causal Elements for Deterioration of Cylindrical EDLC
Yoshitama Hiromu, Tashima Daisuke, Sakoda Tatsuya, Hayashi Noriyuki, Yuhara Masamitsu, Utsunomiya Takashi
IEEJ Transactions on Fundamentals and Materials 135 ( 12 ) 792 - 798 2015.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electrical Engineers of Japan
Chemical analysis was carried out before and after the constant voltage hold test that was an acceleration deterioration examination to clarify deterioration factors of electric double-layer capacitor (EDLC). The results showed that the stress test slightly caused the increase of internal resistance. It was also confirmed that the range of fluorochemicals was formed on the electrode surface for approximately 10 nm in depth using electron spectroscopy for chemical analysis (ESCA). From the chemical analysis of the electrolyte using an inductively coupling plasma emission analyzer (ICP-OES), it was confirmed that the electrolyte included silicone which is one of the ingredient elements of an electrode and that the increase in holding voltage in the stress test decreased the silicone density in the electrolyte.
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化学分析による電気二重層キャパシタの劣化要因の考察 Reviewed
吉玉拓, 田島大輔, 迫田達也, 林則行, 湯原将光, 宇都宮隆
電気学会論文誌A 135 ( 12 ) 792 - 798 2015.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Study on Plasma Sterilization of Plant Anthracnose Pathogen in Water Mist Reviewed
Masaru Tominaga, Toshiyuki Tanaka, Tatsuya Sakoda, Norikazu Mizoguchi, Yoshiyuki Kushima
Information Engineering Express, International Institute of Applied Informatics 1 ( 4 ) 11 - 20 2015.12
Language：English Publishing type：Research paper (scientific journal)
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Detection and Development of Partial Discharges for Vacuum Circuit Breaker using Electromagnetic Wave Sensors Reviewed
Masatoshi Asakura, Manabu Ihira, Takuma Miyake, Tatsuya Sakoda, Kensaku Maeda, Yusuke Iki
2015 Korea-Japan Joint Symposium on Electrical Discharge and HV Engineering 31 - 34 2015.11
Language：English Publishing type：Research paper (international conference proceedings)
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Characteristics of flashover on polluted polymer surface Reviewed
Tatsuya Sakoda, Daichi Yamashita, Tatsuya Deguchi, Takuma Miyake, Noriyuki Hayashi, Kenich Haji, Yoshimasa Aka, Tomikazu Anjiki, and Takato Fukano
2015 Korea-Japan Joint Symposium on Electrical Discharge and HV Engineering 81 - 84 2015.11
Language：English Publishing type：Research paper (international conference proceedings)
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触媒層の違いによる固体高分子形燃料電池用MEA の劣化特性
古澤伸仁, 田島大輔, 迫田達也, 林則行
宮崎大学工学部紀要 41 - 47 2015.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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シリコーン材料の劣化特性の評価
陣内雅人, 山下大地, 岩本丈, 三宅琢磨, 迫田達也
宮崎大学工学部紀要 33 - 40 2015.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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柚子を用いた電気二重層キャパシタ用炭素材料の開発
上栗伸仁, 田島大輔, 迫田達也, 林則行
宮崎大学工学部紀要 9 - 12 2015.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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低周波から中間周波における人体内部インピーダンス測定装置の開発
堀晃太郎, 麦谷翔平, 迫田達也, 林則行, 太良尾浩生
宮崎大学工学部紀要 27 - 31 2015.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Plasma Sterilization of Anthrax Pathogen in Water Mist Reviewed
Masaru Tominaga , Toshiyuki Tanaka , Tatsuya Sakoda , Norikazu Mizoguchi , Yoshiyuki Kushima
2015 IIAI 4th International Congress on Advanced Applied Informatics 690 - 694 2015.7
Language：English Publishing type：Research paper (international conference proceedings)