Journals (peer-reviewed)

Full Papers

(1) Hiroshi YAMAGUCHI, Takuya KUWAHARA and Yoichi UENO, "Micro-Bubbly Flows in Rotating Pipe Sections With Abrupt Expansion and Contraction", JSME International Journal Series B, Vol.47, No.3, Japan Society of Mechanical Engineers (Japan), pp. 564-571, August 2004.

(2) Takuya KUWAHARA and Hiroshi YAMAGUCHI, "Void Fraction Measurement in Magnetic Fluid", Journal of Magnetism and Magnetic Materials, Vol.289,  Elsevier, pp. 403-406, March 2005. 

(3) Takuya KUWAHARA and Hiroshi YAMAGUCHI, "Void Fraction Measurement by Using Electromagnetic Induction", Progress in Multiphase Flow Research , Vol.1 , Japan Society for Multiphase Flow (Japan),  pp. 265-272, April 2006 (in Japanese).

(4) Takuya KUWAHARA and Hiroshi YAMAGUCHI, "Void Fraction Measurement of Gas-Liquid Two-Phase Flow Using Magnetic Fluid", AIAA Journal of Thermophysics and Heat Transfer, Vo.21, No.1, American Institute of Aeronautics and Astronautics (U.S.A.), pp. 173-180, January-March 2007.

(5) Takuya KUWAHARA, Hiroshi YAMAGUCHI and Florian DE VUYST, "Measurement of Bubble Velocity in Air-Magnetic Fluid Two-Phase Flow for Slug-Churn Flows", Progress in Multiphase Flow Research, Vol.2, Japan Society for Multiphase Flow (Japan), pp. 133-140, April 2007.

(6) Takuya KUWAHARA, Masashi OHNISHI, Hiroshi YAMAGUCHI and Shigemitsu SHUCHI, "Heat Transport and Driving Force Characteristics of Heat Transport Device Using Magnetic Fluid in Various Magnetic Fields", Transaction of the Japan Society of Mechanical Engineers B, Vol.73, No.734, Japan Society of Mechanical Engineers (Japan), pp. 2085-2091, October 2007 (in Japanese).

(7) Takuya KUWAHARA, Florian DE VUYST and Hiroshi YAMAGUCHI, "Flow Regime Classification in Air-Magnetic Fluid Two-Phase Flow", Journal of Physics: Condensed Matter, Vol.20, No.20, Institute of Physics (U.K.), 204141 (6 pages), May 2008.

(8) Hiroshi YAMAGUCHI, Takuya KUWAHARA and Florian DE VUYST, "Corresponding Waveform of Induced Electromotive Force and Flow Regime of Air-Magnetic Fluid Two-Phase Flow in Electromagnetic Induction Measuring Method", Progress in Multiphase Flow Research, Vol.3, Jananese Society for Multiphase Flow (Japan), pp. 91-98, June 2008 (in Japanese). 

(9) Takuya KUWAHARA, Hiroshi YAMAGUCHI and Florian DE VUYST, "Flow Regime Discrimination Technique for Gas-Liquid Two-Phase Flow in Magnetic Fluid", Journal of Mechanical Engineering Science, Proceedings of IMechE Part C, Vol.222(C6),  Institution of Mechanical Engineers (U.K.), pp. 935-944, July 2008. 

(10) Takuya KUWAHARA, Florian DE VUYST and Hiroshi YAMAGUCHI, "Bubble Velocity Measurement Using Magnetic Fluid and Electromagnetic Induction", Physics of Fluids, Vol.21 Issue 9, American Institute of Physics (U.S.A.), 097101 (8 pages), September 2009. 

(11) Takuya KUWAHARA, Masaaki OKUBO and Ryuichiro YAMANE, "Open Channel Flows of Magnetic Fluid Induced by Traveling Magnetic Field", Physics Procedia, , Vol.9, Elsevier, pp. 142-146, November 2010. 

(12) Takuya KUWAHARA, Masaaki OKUBO, Tomoyuki KUROKI, Hidetaka KAMETAKA and Toshiaki YAMAMOTO, "Odor Removal Characteristics of Laminated Film-Electrode Packed-Bed Nonthermal Plasma Reactors", Sensors, Vol.11, No.6, MDPI (Switzerland), pp. 5529-5542, May 2011.

(13) Takuya KUWAHARA, Xiaodong NIU, Hiroshi YAMAGUCHI, Yuhiro IWAMOTO and Xinrong ZHANG, "Performance Study of Supercritical CO2-Based Solar Rankine Cycle System With a Novel-Concept Thermally-Driven Pump", Proceedings of the Institution of Mechanical Engineers Part A: Journal of Power and Energy, Vol.225, No.4, Institution of Mechanical Engineers (U.K.), pp. 413-419, June 2011

(14) Keiichiro YOSHIDA, Takuya KUWAHARA, Tomoyuki KUROKI and Masaaki OKUBO, "The Influence on Exhaust Gas Components and Fuel Consumption of Injection of Concentrated NOx into Diesel Engine Intake", IEEJ Transactions on Electronics, Information and Systems, Vol.131 No.11, Institute of Electrical Engineers of Japan (Japan), pp. 1933-1939, November 2011 (in Japanese). 

(15) Takuya KUWAHARA, Keiichiro YOSHIDA, Youhei KANNAKA, Tomoyuki KUROKI and Masaaki OKUBO, "Improvement of NOx Reduction Efficiency in Diesel Emission Control Using Nonthermal Plasma Combined Exhaust Gas Recirculation Process", IEEE Transactions on Industry Applications, Vol.47, No.6, Institute of Electrical and Electronics Engineers (U.S.A.), pp. 2359-2366, November 2011.

(16) Takuya KUWAHARA, Masafumi NISHIMOTO, Keiichiro YOSHIDA, Tomoyuki KUROKI and Masaaki OKUBO, "Development of Plasma-Assisted NOx Aftertreatment System for Clean Diesel Engine (Experiments With A type of Heavy Oil Fuel)", Journal of JSAEM, Vol.20, No.1, Japan Society of Applied Electromagnetics and Mechanics (Japan), pp. 21-27, March 2012 (in Japanese).

(17) Takuya KUWAHARA, Keiichiro YOSHIDA, Kenichi HANAMOTO, Kazutoshi SATO, Tomoyuki KUROKI, Toshiaki YAMAMOTO and Masaaki OKUBO, "Continuous Regeneration Characteristics of Ceramics Particulate Filter in Marine Diesel Engine Using Nonthermal Plasma-Induced Ozone Injection", Journal of the Japan Institute of Marine Engineering, Vol.47, No.3, Japan Institute of Marine Engineering (Japan), pp. 379-384, May 2012.

(18) Yuhiro IWAMOTO, Xiao-Dong NIU, Hiroshi YAMAGUCHI, Ryuji OKUDA and Takuya KUWAHARA, "Heat Transport Characteristics of Magnetically-Driven  Heat  Transport  Device  Using  a  Binary-Temperature  Sensitive Magnetic Fluid", Journal of Magnetohydrodynamics, Vol.48, No.2, Institute of Physics, University of Latvia, pp. 435-444, July 2012. 

(19) Yuhiro IWAMOTO, Xiao-Dong NIU, Hiroshi YAMAGUCHI, Haruhiko YAMASAKI and Takuya KUWAHARA, "Magnetically-Driven Heat Transport Device Using Ferrofluids", Journal of the Japanese Society for Experimental Mechanics, Vol.12, Japanese Society for Experimental Mechanics, pp. s99-s104, July 2012. 

(20) Keiichiro YOSHIDA, Takuya KUWAHARA, Tomoyuki KUROKI and Masaaki OKUBO, "Diesel NOx Aftertreatment by Combined Process Using Temperature Swing Adsorption, NOx Reductionby Nonthermal Plasma, and NOx Recirculation: Improvement of the Recirculation Process", Journal of Hazardous Materials, Vol.231-232, Elsevier, pp. 18-25, September 2012. 

(21) Takuya KUWAHARA, Keiichiro YOSHIDA, Kenichi HANAMOTO, Kazutoshi SATO, Tomoyuki KUROKI, Toshiaki YAMAMOTO and Masaaki OKUBO, "Pilot-Scale Experiments of Continuous Regeneration of Ceramic Diesel Particulate Filter in Marine Diesel Engine Using Nonthermal Plasma-Induced Radicals", IEEE Transactions on Industry Applications, Vol.48, No.5, The Institute of Electrical and Electronics Engineers (U.S.A.), pp. 1649-1656, September 2012.

(22) Takuya KUWAHARA, Tomoyuki KUROKI, Keiichiro YOSHIDA, Noboru SAEKI and Masaaki OKUBO, "Development of Sterilization Device Using Air Nonthermal Plasma Jet Induced by Atmospheric Pressure Corona Discharge", Thin Solid Films, Vol.523, Elsevier, pp. 2-5, November 2012. 

(23) Takuya KUWAHARA, Shunsuke NISHII, Tomoyuki KUROKI and Masaaki OKUBO, "Complete Regeneration Characteristics of Diesel Particulate Filter Using Ozone Injection", Applied Energy, Vol.111, Elsevier, pp. 652-656, November 2013.

(24) Tomoyuki KUROKI, Mitsuru TAHARA, Takuya KUWAHARA and Masaaki OKUBO, “Microfabricationand Metal Plating Technologies on Polytetrafluoroethylene Film Surface Treatedby Atmospheric Pressure Nonthermal Plasma Graft Polymerization Process”, IEEE Transactions on Industry Applications, Vol.50, No.1, The Institute of Electrical and Electronics Engineers (U.S.A.), pp. 45-50, January 2014.

(25) Takuya KUWAHARA, Keiichiro YOSHIDA, Tomoyuki KUROKI, Kenichi HANAMOTO, Kazutoshi SATO and Masaaki OKUBO, “Pilot-Scale Aftertreatment Using Nonthermal Plasma Reduction of Adsorbed NOx in Marine Diesel-Engine Exhaust Gas”, Plasma Chemistry and Plasma Processing, Vol.34, No.1, Springer, pp. 65-81, January 2014. 

(26) Takuya KUWAHARA, Keiichiro YOSHIDA, Kenichi HANAMOTO, Kazutoshi SATO, Tomoyuki KUROKI and Masaaki OKUBO, “A Pilot-Scale Experiment for Total Marine Diesel Emission Control Using Ozone Injection and Nonthermal Plasma Reduction”, IEEE Transactions on Industry Applications, Vol.51, No.2, Institute of Electrical and Electronics Engineers (U.S.A.), pp. 1168-1178 , March 2015.

(27) Chayadit PUMANERATKUL, Yuhiro IWAMOTO, Xiao-Dong NIU, Takuya KUWAHARA and Hiroshi YAMAGUCHI, “Characteristics of Thermally Driven Pump in Supercritical CO2 Solar Rankine Cycle System”, International Journal of Mechanical and Production Engineering, Vol.3, No.4, Institute of Research and Journals (India), pp. 1-6, April 2015.

(28) Takuya KUWAHARA, Keiichiro YOSHIDA, Kenichi HANAMOTO, Kazutoshi SATO, Tomoyuki KUROKI and Masaaki OKUBO, “Effect of Exhaust GasTemperature on Oxidation of Marine Diesel Emission Particulates With Nonthermal-Plasma-Induced Ozone”, Ozone: Science & Engineering: The Journal of the International Ozone Association, Vol.37, No.6, Taylor & Francis (U.K.), pp. 518-526, June 2015.

(29) Takuya KUWAHARA, Harunobu NAKAGUCHI, Tomoyuki KUROKI and Masaaki OKUBO, “Continuous Reduction of Cyclic Adsorbed and Desorbed NOx in Diesel Emission Using Nonthermal Plasma”, Journal of Hazardous Materials, Vol.308, Elsevier, pp. 216-224, May 2016.

(30) Masaaki OKUBO, Tomoyuki KUROKI, Hideaki YAMADA, Keiichiro YOSHIDA and Takuya KUWAHARA, “CO2 Concentration Using Adsorption and Nonthermal Plasma Desorption”, IEEE Transactions on Industry Applications, Vol.53, No.3, The Institute of Electrical and Electronics Engineers (U.S.A.), pp. 2432-2439, May 2017.

(31) Tomoyuki KUROKI, Shunsuke NISHII, Takuya KUWAHARA and Masaaki OKUBO, “Nanoparticle Removal and Exhaust Gas Cleaning Using Gas-Liquid Interfacial Nonthermal Plasma”, Journal of Electrostatics, Vol.87, Elsevier, pp. 86-92, June 2017.

(32) Takuya KUWAHARA, “Reduction in Energy Consumption Using Fuel Cells in Nonthermal Plasma-Based Water Sterilization by Bubbling Ozone”, IEEE Transactions on Industry Applications, Vol.54, No.6, The Institute of Electrical and Electronics Engineers (U.S.A.), pp. 6414-6421,  November 2018. 

(33) Takuya KUWAHARA, Keiichiro YOSHIDA, Tomoyuki KUROKI, Kenichi HANAMOTO, Kazutoshi SATO, and Masaaki OKUBO, “High Reduction Efficiencies of Adsorbed NOx in Pilot-Scale Aftertreatment Using Nonthermal Plasma in Marine Diesel-Engine Exhaust Gas”, Energies, Vol.12, No.19, MDPI (Switzerland), 3800 (13 pages), October 2019.

(34) Takuya KUWAHARA, Keiichiro YOSHIDA, Tomoyuki KUROKI, Kenichi HANAMOTO, Kazutoshi SATO, and Masaaki OKUBO, “Pilot-Scale Combined Reduction of Accumulated Particulate Matter and NOx Using Nonthermal Plasma for Marine Diesel Engine”, IEEE Transactions on Industry Applications, Vol.56, No.2, The Institute of Electrical and Electronics Engineers (U.S.A.), pp. 1804-1814, March 2020.

(35) Takuya KUWAHARA, “Fundamental Characteristics of Low-Resistive Particulate Matter Removal Using a Magnetic Fluid and Nonthermal Plasma”, Journal of Magnetism and Magnetic Materials, Vol.498, Elsevier, 166161 (5 pages), March 2020.

(36) Takuya KUWAHARA and Yusuke ASAKA, “Fundamental Characteristics of Single Dielectric Barrier Discharge Plasma Actuator Using Magnetic Fluid”, International Journal of Plasma Environmental Science and Technology, Vol.17, No.2, The Institute of Electrostatics Japan, e02001 (13 pages), May 2023.

(37) Takuya KUWAHARA and Yusuke ASAKA, “Ionic Wind and Ozone Generation in a Single Magnetic Fluid Dielectric Barrier Discharge Plasma Actuator with Different Electrode Configurations”, Journal of Magnetism and Magnetic Materials, Vol.589, Elsevier, 171572 (9 pages), January 2024.

(38) Takuya KUWAHARA and Yusuke ASAKA, “Air Purification Performance Analysis of Magnetic Fluid Filter With AC Non-Thermal Plasma Discharge”, Energies, Vol.17, No.8, MDPI, 1865 (17 pages), April 2024.

(39) Yusuke ASAKA, Tsubasa Ueno and Takuya KUWAHARA, “Investigation of Particle Collection Efficiency and Ozone Generation in AC and DC Single-Magnetic Fluid Filter Toward a High Performance Air Purifier With Selective Ozone Generation”, International Journal of Plasma Environmental Science and Technology, Vol.19, No.2, The Institute of Electrostatics Japan, e02010 (11 pages), March 2025.

(40) Tsubasa UENO, Yusuke ASAKA and Takuya KUWAHARA, “Influence of Series Arrangement of Magnetic Fluid Plasma Actuators on Ionic Wind Velocity”, Journal of JSAEM, Vol.33, No.2, The Japan Society of Applied Electromagnetics and Mechanics (Japan), pp. 149-154, June 2025 (in Japanese). 

(41) Yusuke ASAKA, Tsubasa UENO and Takuya KUWAHARA, “Discharge-Electrode Shape Control of Magnetofluid Dielectric Barrier Discharge Plasma Actuator by Magnetic Field”, Journal of JSAEM, Vol.33, No.2, The Japan Society of Applied Electromagnetics and Mechanics (Japan), pp. 155-161, June 2025 (in Japanese). 

(42) Tsubasa Ueno, Yusuke ASAKA and Takuya KUWAHARA, “Ionic Wind Control in AC Single Magnetic Plasma Actuator by Magnetic Field”, Magnetohydrodynamics, Vol.61, No.1-2, Institute of Physics, University of Latvia, pp. 181-190, July 2025.

Notes

(1) Takuya KUWAHARA, Taiki SHINOHARA, Tomoyuki KUROKI, Keiichiro YOSHIDA and Masaaki OKUBO, “Development of Clean Diesel Engine withPlasma-Assisted Aftertreatment System (Achievement of System Energy Efficiencyof 385 g (NO2)/kWh Using Nonthermal Plasma and EGCR)”, Transactions of JSME B, Vol.78, No.789, Japanese Society of Mechanical Engineers (Japan), pp.1029-1033, May 2012 (in Japanese). 

(2) Takuya KUWAHARA, Masafumi NISHIMOTO, Keiichiro YOSHIDA, Tomoyuki KUROKI and Masaaki OKUBO, “Effect of Exhaust Gas Temperature on Low-Temperature Treatment of Diesel Particulates with Indirect Plasma”, Transactions of JSME B, Vol.79, No.800, Japanese Society of Mechanical Engineers (JSME), pp.723-727, April 2013 (in Japanese).

(3) Keiichiro YOSHIDA, Takuya KUWAHARA, Tomoyuki KUROKI and Masaaki OKUBO, “TheInfluence on Exhaust Gas Composition and Fuel Consumption of High-Flow-Rate NOInjection into Diesel Engine Intake (Difference in the Influence by EngineLoads)”, Transactions of JSME B, Vol.79. No.801, Japanese Society of Mechanical Engineers (JSME), pp.786-790,  May 2013 (in Japanese).