Hidemasa Takana

Tohoku University

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Hideya Nishiyama

Tohoku University

122

Jiří Jeništa

Czech Academy of Sciences, Institute of Plasma Physics

Milada Bartlová

Brno University of Technology

Vladimír Aubrecht

Brno University of Technology

Satoshi Uehara

The University of Kitakyushu

Yoshihiro Okuno

Tokyo Institute of Technology

Seiichi Sudo

Tokyo City University

Hiroyuki Yamasaki

Shizuoka Saiseikai General Hospital

Kazunari Katagiri

Tohoku University

Takayasu Fujino

University of Tsukuba

Cooperative Institutions

Tohoku University

Centre National de la Recherche Scientifique

Université Claude Bernard Lyon 1

Akita Prefectural University

Tokyo Institute of Technology

Kyoto University

Institut National des Sciences Appliquées de Lyon

Tohoku University Hospital

Keio University

Osaka University

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102 Development of Highly Reactive Multiple Bubble Jet System with Discharge and lts Characteristics of Water Purmcation

The Proceedings of Conference of Tohoku Branch (2012)

Kei Niinuma Tomoki NAKAJIMA Hidemasa Takana Hideya Nishiyama

10.1299/jsmeth.2012.47.10

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Citations (0)

Water Treatment Characteristics Using Activated Air Microbubble Jet with Photochemical Reaction

Journal of Fluid Science and Technology (2011)

Tomohiro Shibata Akira Ozaki Hidemasa Takana Hideya Nishiyama

The characteristics of functional activated air microbubble jet with UV irradiation are experimentally clarified for high performance of liquid decomposition. The decolorization of methylene blue solution improves by UV irradiation onto activated air microbubble jet for any solution pH. The effect of UV irradiation on decolorization is most intensive for neutral solution due to the enhanced radical generation through photochemical reaction.

Methylene blue

Methylene

10.1299/jfst.6.242

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Citations (12)

Experimental and theoretical study on chemical reactions and species diffusion by a nano-pulse discharged bubble for water treatment

The European Physical Journal D (2018)

Yuchen He Satoshi Uehara Hidemasa Takana Hideya Nishiyama

10.1140/epjd/e2017-80240-5

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Citations (1)

Turbulenteffects inahybrid-stabilized argon-waterelectricarc: Aparametric numericalstudy

2013 Abstracts IEEE International Conference on Plasma Science (ICOPS) (2013)

Jiří Jeništa Petr Křenek Hidemasa Takana Hideya Nishiyama Milada Bartlová

Summary form only given. The paper focuses on a numerical study of the impact of turbulent effects in the discharge and near-outlet regions of the worldwide unique type of thermal plasma generator with combined stabilization of electric arc by axial argon flow and tangential water vortex (hybrid-stabilized arc). This arc has been used at present for plasma spraying and for production of syngas (CO + H ₂ ) from municipal waste or biomass.

Electric arc

Plasmatron

10.1109/plasma.2013.6634896

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Effect of configuration on microdischarge structure in a narrow channel

Physics Letters A (2007)

Lizhu Tong Shigeru Yonemura Hidemasa Takana Hideya Nishiyama

Plasma channel

Particle (ecology)

Glow discharge

10.1016/j.physleta.2007.06.014

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Citations (3)

212 Experimental Analysis on Flow Structure and Flow Control Characteristics of MR Fluid in a Pressure Mode under Magnetic Filed(1)

Ryuutai Kougaku Bumon Kouenkai kouen rombunshuu/Ryutai Kogaku Bumon Koenkai koen ronbunshu (2006)

Hideya Nishiyama Hidemasa Takana Kazunari Katagiri Masaaki Motozawa Tetsuo SAWADA

Mode (computer interface)

Flow Control

10.1299/jsmefed.2006._212-a_

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207 Functional Air Plasma Flow by Utilizing Pulsed Arc Discharge for Combustion Enhancement(1)

Ryuutai Kougaku Bumon Kouenkai kouen rombunshuu/Ryutai Kogaku Bumon Koenkai koen ronbunshu (2006)

Hideya Nishiyama Kenji TSURI Hirofumi Shimizu Kazunari Katagiri Hidemasa Takana

Electric arc

10.1299/jsmefed.2006._207-a_

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Turbulent Taylor–Couette flow with magnetohydrodynamic interaction in axial magnetic field

Physics of Fluids (2025)

Hiromichi Kobayashi Takahiro Hasebe Takayasu Fujino Hidemasa Takana

Turbulent Taylor–Couette flow applied in the axial magnetic field with upper and lower walls is numerically investigated by large-eddy simulation. As the Hartmann number increases proportional to the magnetic field, turbulent fluctuations are suppressed, and the flow is laminarized. The alignment of vortex structures is drastically changed from the azimuthal direction to the axial direction. The fine streaks near the inner wall are suppressed, and the high-speed triplet streaks emerge near the inner wall. The electric current streamlines reveal the feature of the difference between open and short circuit conditions.

Taylor–Couette flow

Magnetohydrodynamic Turbulence

10.1063/5.0255100

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138 Responses of Micro Magnetic Fluid Bridge Held by Two Small Magnets in Alternating Magnetic Field

The Proceedings of Conference of Tohoku Branch (2013)

Hiroki Takamatsu Seiichi Sudo Hidemasa Takana Hideya Nishiyama

Bridge (graph theory)

10.1299/jsmeth.2013.48.78

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Citations (0)