Reports

1.	Report on The 12th Asia-Pacific Conference on Combustion (ASPACC2019).
2.	Research and Development on Super Lean Burn Combustion for High Efficiency SI Engines.
3.	Study on Crucial Factor of Knock Intensity using Constant Volume Vessel, Journal of Society of Automotive Engineers of Japan, Vol.72, No.4, 63-69..
4.	Propagating Flame and End-gas Auto-ignition in Constant Volume Vessel, Journal of the Combustion Society of Japan, Vol.57, No.181, 199-205..
5.	Combustion Properties of CO Rich Coal Gasification Gas under High CO2 Concentration Atmosphere and their Comparison with Methane, Journal of the Japan Institute of Energy, Vol.94 No.3.
6.	Effects of Pressure on Spherically Propagating Premixed Flames, Journal of the Combustion Society of Japan, Vol.56 No.175.
7.	Combustion Characteristics of Stratified Mixture Formed by Transient Gas Fuel Jet, T. KITAGAWA, Engine Technology, Vol.4, No.2, pp.38-45, (2002)..

Papers

1.	Hazim Shehab, Hiroaki Watanabe, Yuki Minamoto, Ryoichi Kurose, Toshiaki Kitagawa, Morphology and structure of spherically propagating premixed turbulent hydrogen - air flames, Combustion and Flame, https://doi.org/10.1016/j.combustflame.2021.111888, 238, 2022.04.
2.	Takashi Ikeda, Yoshihiro Tsuruda, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Numerical study on soot formation in outwardly propagating, iso-octane, rich, cellular flames, Fuel, https://doi.org/10.1016/j.fuel.2021.121520, 305, 2021.12.
3.	Toshiaki Kitagawa, Hiroaki Watanabe, Ryou Nishiyama, Riou Sonokawa, Kenichi Shinoda, Propagation Properties of Turbulent Premixed Flames Neutral for Thermo-Diffusive Effects, International Journal of Automotive Engineering, 11, 3, 101-107, 2020.09.
4.	Eiich Takahashi, Daiki Asakawa, Yukihide Nagano, Toshiaki Kitagawa, Taizo Nakamura, Makihito Nishioka, Fumiya Kawashima, Michio Nakano, Investigation of the knocking intensity mitigation mechanism by dielectric barrier discharge, International Journal of Automotive Engineering, 11, 3, 75-82, 2020.09.
5.	Hazim Shehab, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Numerical Study on the Effects of Turbulence Scale on Spherically Propagating Hydrogen Flames within Multiple Flame Radii, International Journal of Automotive Engineering, 10, 4, 292-298, 2019.12.
6.	Nagano Yukihide, Akihiro Tsuda, Akira Noomo, Takuya Fukushima, Masayoshi Morita, Toshiaki Kitagawa, Study on Factors Affecting Shape Characteristics of Spherically Propagating i-C8H18/O2/N2 Turbulent Flames Using Constant Volume Vessel, The Ninth INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2017.07.
7.	Ekenechukwu Okafor, Nagano Yukihide, Toshiaki Kitagawa, Experimental and Theoretical Analysis of Cellular Instability in Lean H2-CH4-Air Flames at Elevated Pressures, International Journal of Hydrogen Energy, Vol. 41, pp. 6581-6592, 2016.03.
8.	Nagano Yukihide, Toshiaki Kitagawa, Atsushi Ohta, Shiro Takakura, Yutaka Tajima, Nobu Takahashi, Influences of Turbulence Scale on Development of Spherically Propagating Flame under High EGR Conditions , SAE 2015 International Powertrain, Fuels & Lubricants Meeting, JSAE 20159112, SAE 2015-01-1868, 2015.09.
9.	Nagano Yukihide, Toshiaki Kitagawa, Observation of flame propagation and knock in a constant volume vessel, The 25th International Colloquium on Dynamics of Explosions and Reactive Systems, 291, 2015.08.
10.	Numerical investigation of motion of a non-spherical particle (Effects of gas blowing-out on motion of a particle in a uniform flow), Transactions of the Japan Society of Mechanical Engineering, 81, 827, (2015). .
11.	Ekenechukwu C. Okafor, Yosuke Fukuda, Nagano Yukihide, Toshiaki Kitagawa, Turbulent Burning Velocities of Stoichiometric Hydrogen-Carbon Monoxide-Air Flames at Elevated Pressures, SAE 2014 International Powertrain, Fuels & Lubricants Meeting, 2014-01-2701, 2014.10.
12.	Ekenechukwu Okafor, Akihiro Hayakawa, Nagano Yukihide, Toshiaki Kitagawa, Effects of hydrogen concentration on premixed laminar flames of hydrogen-methane-air, International Journal of Hydrogen Energy, Vol. 39, Issue 5 pp. 2409-2417, 2014.02.
13.	Ekenechukwu C. Okafor, Nagano Yukihide, Toshiaki Kitagawa, Effects of Hydrogen Concentration on Stoichiometric H2/CH4/Air Premixed Turbulent Flames, SAE/KSAE 2013 International Powertrains, Fuels & Lubricants Meeting, 2013-01-2563, 2013.10.
14.	Ekenechukwu C. Okafor, Masashi Toyoda, Akihiro Hayakawa, Nagano Yukihide, Toshiaki Kitagawa, Experimental and numerical studies on burning velocities and Markstein numbers of lean laminar H2/CH4/air flames, The 9th Asia-Pacific Conference on Combustion, 2013.05.
15.	Nagano Yukihide, Tetsuya Ohira, Masayuki Oonaka, Yu Uyama, Toshiaki Kitagawa, One-dimensional Flame Propagation and Auto-ignition of End Gas in Constant Volume Vessel, The 8th INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2012.08.
16.	Akihiro HAYAKAWA, Yukito MIKI, Yukihide NAGANO, Toshiaki KITAGAWA, Analysis of Turbulent Burning Velocity of Spherically Propagating Premixed Flame with Effective Turbulence Intensity, Journal of Thermal Science and Technology, Vol.7, No.4, pp.508-521., 2012.08.
17.	Yukihide Nagano, Tomohiro Takeo, Koichi Tomari, Akihiro Hayakawa, Shoichi Kobayashi, Toshiaki Kitagawa, Combustion Properties of Hydrogen/Air Mixture with and without dilution, 2011 JSAE/SAE International Powertrains, Fuels & Lubricants, JSAE 20119219, SAE 2011-01-199, 2011.08.
18.	Akihiro Hayakawa, Yukito Miki, Shoichi Kobayashi, Yukihide Nagano, Toshiaki Kitagawa, Effects of CO2 and N2 Dilutions on Laminar and Turbulent Flame Propagation, 2011 JSAE/SAE International Powertrains, Fuels & Lubricants, JSAE 20119182, SAE 2011-01-1878, 2011.08.
19.	Effects of CO2 Dilution on Laminar and Turbulent Combustion of Hydrogen Mixtures Simulating Coal Gasification Gas, Journal of the Japan Institute of Energy, 90, 1, pp.45-50, (2011). .
20.	Effects of Pressure on Laminar and Turbulent Burning Velocities of Ethanol Premixed Flames, Journal of the Japan Institute of Energy, 89, 11, pp.1088-1094, (2010). .
21.	Study on Turbulent Burning Velocity of Outwardly Propagating Hydrogen-Air Flames with Turbulence Karlovitz Number, Transactions of the Japan Society of Mechanical Engineering, 76, 769, B, pp.1426-1432, (2010). .
22.	Influence of thermo-diffusive effects on turbulent propagating iso-octane / air / inert gas flames at the same turbulence Karlovitz number, Transactions of Society of Automotive Engineers of Japan, Vol.41, No.2, pp. 307-312, 2010..
23.	Effects of Dilution on Iso-octane Premixed Propagating Flames - Comparison between CO2 and N2 dilution -, Transactions of Society of Automotive Engineers of Japan, Vol.41, No.1, pp. 61-66, 2010..
24.	Effects of CO2 Dilution on Iso-octane Laminar and Turbulent Premixed Flames - On Stoichiometric Mixture -, Transactions of Society of Automotive Engineers of Japan, Vol.40, No.5, pp. 1209-1215, 2009..
25.	Quench of Flame Kernel and its Incidence Factors for Premixed Turbulent Methane Flames, Transactions of Society of Automotive Engineers of Japan, Vol.40, No.3, pp. 811-816, 2009. .
26.	Effects of Pressure on Laminar and Turbulent Burning Velocities of Iso-octane Premixed Flames, Transactions of Society of Automotive Engineers of Japan, Vol.40, No.1, pp. 81-86, 2009. .
27.	Toshiaki Kitagawa, Takashi Nakahara, Kosuke Maruyama, Akihoro Hayakawa, Shoichi Kobayashi, Turbulent burning velocity of hydrogen–air premixed propagating flames at elevated pressures, International Journal of Hydrogen Energy, Vol. 33, Issue 20 pp. 5842-5849, 2008.10.
28.	Toshiaki Kitagawa, Koichi Furukawa, Takashi Nakahara, Kosuke Maruyama, The Effects of Pressure on Laminar and Turbulent Burning Velocities of Spherically Propagating Iso-octane Flames, The Seventh International Conference on Modeling and Diagnostics for Advanced Engine Systems, pp. 505-510, 2008.07.
29.	Andrew Smallbone, Toshiaki Kitagawa, Premixed Laminar and Turbulent Combustion: An Examination and Correlation in terms of Lewis Number, FISITA Transactions 2006, F2006P153T, 2007.10.
30.	Andrew Smallbone, Toshiaki Kitagawa, Tetsuo Oonishi, Unstretched Laminar Burning Velocity Estimations from Unstable Flames at Elevated Pressures, Transactions of Society of Automotive Engineers of Japan, Vol.38, No.5, pp.143-148., 2007.09.
31.	Toshiaki Kitagawa, Andrew Smallbone, Tetsuo Oonishi, Propagation and Quench of Premixed Turbulent Flames, 2007 JSAE/SAE International Fuels and Lubricants Meeting, JSAE Paper No. 20020077169, SAE Paper No. 2007-01-1828., 2007.07.
32.	Andrew Smallbone, Toshiaki Kitagawa, Laminar Burning Velocity Measurements of Hydrogen-Air Mixtures at Elevated Pressures, Transactions of Society of Automotive Engineers of Japan, Vol.37, No.6, pp.155-160., 2006.11.
33.	A.SMALLBONE, T.KITAGAWA, Premixed Laminar and Turbulent Combustion: An Examination and Correlation in terms of Lewis Number, FISITA 2006 World Automotive Congress, F2006P153, 2006.10.
34.	A.SMALLBONE, K.TSUNEYOSHI, T.KITAGAWA, Turbulent and Stable/Unstable Laminar Burning Velocity Measurements from Outwardly Propagating Spherical Hydrogen-Air Flames at Elevated Pressures, Journal of Thermal Science and Technology, Vol.1, No.1, pp.31-41., 2006.06.
35.	Study on the Effects of Pressure on Turbulent Burning Velocity of Outwardly Propagating Propane-Air Flame with Turbulence Reynolds and Markstein Numbers, T.KITAGAWA, Y.NAGANO and K.TSUNEYOSHI, Transactions of the Japan Society of Mechanical Engineering, 72, 715, pp.825-832, (2005)..
36.	Study on Effects of Pressure on Quenching of Flame Kernel and its Incident Criterion for Methane-Air Mixture with Markstein Number, Transactions of Society of Automotive Engineers of Japan, Vol.37, No.1, pp. 7-12, 2006..
37.	Study on the Effects of Pressure on Turbulent Burning Velocity of Outwardly Propagating Methane-Air Flame with Reynolds and Markstein Numbers, Transactions of Society of Automotive Engineers of Japan, Vol.36, No.6, pp. 13-18, 2005..
38.	Pressure Dependencies of Laminar Burning Velocities, Markstein Numbers and Overall Activation Energies of Methane and Propane-Air Premixed Flames, Transactions of Society of Automotive Engineers of Japan, Vol.36, No.6, pp. 7-12, 2005..
39.	T.KITAGAWA, H.KIDO, N.NAKAMURA, M.AISHIMA, Flame Inertia into Lean Region in Stratified Hydrogen Mixture, International Journal of Hydrogen Energy, 10.1016/j.ijhydene.2004.11.002, 30, 13-14, 1457-1464, Vol.30, Issues 13-14, pp. 1457〜1464., 2005.10.
40.	T.KITAGAWA, Effects of Pressure on Burning Velocity and Instabilities of Propane-Air Premixed Flames, JSME International Journal, 10.1299/jsmeb.48.2, 48, 1, 2-8, Series B, Vol., No.48, No.1, pp.2-8, (2005)., 2005.02.
41.	Combustion Characteristics of Transient Hydrogen Jet and Flame Propagation into Lean Region, T.KITAGAWA, T.OGWA and Y.NAGANO, Transactions of the Japan Society of Mechanical Engineering, 70, 700, pp.3239-3245, (2004)..
42.	T.KITAGAWA, H.KIDO, K.S.KIM, H.KOGA and K.FUJIOKA, Flame Propagation into Lean Region in Stratified Methane Mixture, SAE 2002 Transactions - Journal of Fuels and Lubricants, pp.1221-1228, (2003)., 2003.09.
43.	D. Bradley, M. Z. Haq, R. A. Hicks, T. Kitagawa, M. Lawes, C. G. W. Sheppard and R. Woolley, Turbulent Burning Velocity, Burned Gas Distribution, and Associated Flame Surface Definition, Combustion and Flame, Vol.133 (2003), pp.415-430., 2003.06.

Presentations

1.	Ekenechukwu C. OKAFOR, Tomoki IKEDA, Yusuke KUBOTA, Yuji TAGUCHI, Yuhi OKAMOTO, Toya TAKAHASHI, Toshiaki KITAGAWA, Laminar Burning Velocity of Premixed Flames of C5H10 Mixtures, 第33回内燃機関シンポジウム, 2022.11.
2.	Soot Formation Processes in Outwardly Propagating Iso-octane Flames.
3.	Takashi Ikeda, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Effect of equivalence ratio on soot formation at cusp area in a premixed cellular flame, The 10th International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022), 2022.07.
4.	Toshiaki Kitagawa, Hiroaki Watanabe, Chihiro Inoue, Hazim Shehab, Influences of Turbulence Scale on Burning Velocity of Spherically Propagating Hydrogen-Air Flames, The 10th International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022), 2022.07.
5.	Effects of Swirling Flow in Intake Pipe on Gasoline Engine Performance.
6.	Influences of Equivalence Ratio on Soot formation in Iso-octane Outwardly Propagating Rich Unstable Flames.
7.	Soot formation in Iso-octane Spherically Propagating Rich Unstable Flame.
8.	Turbulent Propagation Properties of Premixed Flames Neutral for Thermo-Diffusive Effects，Toshiaki Kitagawa, Hiroaki Watanabe, Ryou Nishiyama, Riou Sonokawa, Kenichi Shinoda, 2020 JSAE Annual Congress(Spring).
9.	Panlong Yu, Kento Yasui, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Investigation on Flamelet Characteristics of a Three-Feed Non-Premixed Combustion System, The Second Pacific Rim Thermal Engineering Conference, 2019.12.
10.	Hazim H. Shehab, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Numerical Study on the Influences of Turbulence Scale on Spherical Hydrogen Flame Development, The Second Pacific Rim Thermal Engineering Conference, 2019.12.
11.	Observation of knocking intensity mitigation effect by dielectric barrier discharge.
12.	Influence of Molecular Structure of Cyclic Hydrocarbons on Low Temperature Oxidation Reaction of n-Heptane.
13.	Panlong Yu, Hiroaki Watanabe, Heinz Pitsch, Isao Yuri, Hiroyuki Nishida, Toshiaki Kitagawa, Large-eddy simulation of quasi-two-dimensional flamelet model for a three-feed non-premixed combustion system, The 2nd International symposium on Advanced Measurement, Analysis and Control of Energy and Environment (AMACEE2019), 2019.12.
14.	Seongyool Ahn, Hiroaki Watanabe, Toshiaki Kitagawa, Numerical assessment on blended pulverized coal combustion by large eddy simulation, The 59th KOSCO Symposium, 2019.11.
15.	Taizo Kitada, Takayuki Shirota, Shinji Hayashi, Dai Tanaka, Masato Kuchita, Yasuyuki Sakai, Yukihide Nagano, Toshiaki Kitagawa, An Analysis on Cycle-by-cycle Variation and Trace-knock Using a Turbulent Combustion Model Considering a Flame Propagation Mechanism, 2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting, 2019.08.
16.	Nobuyuki Kawahara, Masanobu Watanabe, Eiji Tomita, Yukihide Nagano, Toshiaki Kitagawa, Plasma Temperature of Spark Discharge in a Lean-burn Spark-ignition Engine Using a Time Series of Spectra Measurements, 2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting, 2019.08.
17.	Seongyool Ahn, Kouki Maeda, Hiroaki Watanabe, Toshiaki Kitagawa, Numerical investigation of NOx formation with a derived global reaction mechanism on a turbulent pulverized coal combustion furnace, ASME-JSME-KSME Joint Fluid Conference 2019, 2019.07.
18.	Seongyool Ahn, Hiroaki Watanabe, Toshiaki Kitagawa, Numerical study on the effect of coal composition on a pilot-scale turbulent coal combustion furnace, The 12th Asia-Pacific Conference on Combustion, 2019.07.
19.	Hazim Shehab, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Numerical Study on the Effects of Turbulence Scale on Spherically Propagating Hydrogen Flames within Multiple Flame Radii, 自動車技術会２０１９年春季大会学術講演会, 2019.05.
20.	Panlong Yu, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Study on quasi-two-dimensional flamelet model for a three-feed non-premixed combustion system, International Conference on Polygeneration (ICP2019), 2019.05.
21.	Panlong Yu, Hiroaki Watanabe, Isao Yuri, Hiroyuki Nishida, Toshiaki Kitagawa, Modeling and simulation of quasi-two-dimensional flamelet model for a three-feed non-premixed combustion system, The 17th International Conference on Numerical Combustion, 2019.05.
22.	Seongyool Ahn, Panlong Yu, Hiroaki Watanabe, Ryoichi Kurose, Toshiaki Kitagawa, Flamelet LES for two-phase combustion in a pilot scale turbulent pulverized coal combustion furnace, 第32回数値流体力学シンポジウム, 2018.12.
23.	The Influences of Spark Ignition on Combustion Properties at Lean Condition in SI Engine.
24.	Promotional effect of gasoline-engine combustion by dielectric barrier discharge.
25.	Study on Influences of Turbulent Properties on Flame Shape of i-C8H18 Turbulent Premixed Flame Using Constant Volume Vessel.
26.	Seongyool Ahn, Hiroaki Watanabe, Toshiaki Kitagawa, Large-eddy simulation of a coal jet flame with a skeletal mechanism, 第46回可視化情報シンポジウム, 2018.09.
27.	Hazim Shehab, Ryoichi Kurose, Hiroaki Watanabe, Toshiaki Kitagawa, Numerical Study on the Effects of Turbulence Scale on Spherically Propagating Hydrogen Flames, 自動車技術会２０１８年春季大会学術講演会, 2018.05.
28.	Hazim Shehab, Hiroaki Watanabe, Masaya Muto, Ryoichi Kurose, Toshiaki Kitagawa, Numerical Study on the Effects of Turbulence Intensity and Scale on Spherically Propagating Flames, 第28回内燃機関シンポジウム, 2017.12.
29.	Nagano Yukihide, Akihiro Tsuda, Akira Noomo, Takuya Fukushima, Masayoshi Morita, Toshiaki Kitagawa, Study on Factors Affecting Shape Characteristics of Spherically Propagating i-C8H18/O2/N2 Turbulent Flames Using Constant Volume Vessel, The Ninth INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2017.07.
30.	Development of Turbulent Combustion Model with Combustion Zone for 2 Zone Combustion Calculation Code for Gasoline Engines.
31.	Study on Influences of Turbulence Scale on Flame Shape and Combustion Properties under Lean/EGR Condition using Constant Volume Vessel.
32.	Study on Crucial Factor of Knock Intensity using Constant Volume Vessel.
33.	Influences of Mixture Temperature on Flame Propagation, Chemical Reactions in End Gas Region and Knock Phenomena (Fifth Report) (Influence of Mixing Ratio of Toluene and n-Heptane on Reaction Intermediates before Ignition).
34.	Influences of Turbulence Scale on Combustion Properties of i-C8H18 Turbulent Premixed Flame under Lean and EGR Conditions Using Constant Volume Vessel.
35.	Direct Numerical Simulation of Ignition of a Single Particle Freely Moving in a Uniform Flow.
36.	Influences of Turbulence Scale on Combustion Properties under Lean and EGR Conditions.
37.	Wei Zhang, Hiroaki Watanabe, Toshiaki Kitagawa, Direct numerical simulation of ignition of a single particle freely moving in a uniform flow, 36th International Symposium on Combustion, 2016.08.
38.	Study on Development of i-C8H18 Turbulent Premixed Flame under Lean and EGR Conditions using Constant Volume Vessel.
39.	Influences of Mixture Temperature on Flame Propagation, Chemical Reactions in End Gas Region and Knock Phenomena (Fourth Report) Influence of Equivalence Ratio on Reaction Intermediates before Ignition.
40.	Yukihide Nagano, Yosuke Fukuda, Akira Noomo, Taiki Tsukamoto, Hiroaki Watanabe, Toshiaki Kitagawa, Study on Spherically Propagating i-C8H18 Turbulent Flames using lean and EGR Conditions using Constant Volume Vessel, The First Pacific Rim Thermal Engineering Conference, 2016.03.
41.	Influences of Turbulence Scale on Turbulent Flame Shape and Combustion Properties.
42.	Toshiaki Kitagawa, Study on Propagating Turbulent Flamein SIP Innovative Combustion Technology Projects, The 51st KOSCO Symposium, The Korean Society of Combustion, 2015.12, Innovative combustion technology projects in Cross-ministerial Strategic Innovation Promotion Program (SIP) by Cabinet Office, Government of Japan and "Study on Propagating Turbulent Flame" were introduced at the 51st KOSCO Symposium..
43.	Study on Properties of i-C8H18 Turbulent Premixed Flames under Lean and EGR Conditions Using Constant Volume Vessel .
44.	Study on factors affecting turbulent flame shape of iso-octane/O2/N2.
45.	Study on Combustion Properties of i-C8H18 Turbulent Premixed Flame under Lean and EGR Conditions Using Constant Volume Vessel .
46.	Nagano Yukihide, Toshiaki Kitagawa, Atsushi Ohta, Shiro Takakura, Yutaka Tajima, Nobu Takahashi, Influences of Turbulence Scale on Development of Spherically Propagating Flame under High EGR Conditions , SAE 2015 International　Powertrain, Fuels & Lubricants Meeting, 2015.09.
47.	Nagano Yukihide, Toshiaki Kitagawa, Observation of Flame Propagation and Knock in a Constant Volume Vessel, The 25th International Colloquium on the Dynamics of Explosions and Reactive Systems, 2015.08.
48.	Burning velocities and flame front shapes of spherically propagating premixed turbulent H2/CO flames.
49.	Ekenechukwu OKAFOR, Yosuke FUKUDA, 永野 幸秀, 北川 敏明, Effects of CO and CH4 addition on the propagation of stoichiometric laminar hydrogen flames, 第５２回燃焼シンポジウム, 2014.12.
50.	Influences of Turbulence Scale on Combustion Properties under High EGR Conditions.
51.	Influences of Mixture Temperature on Flame Propagation, Chemical Reactions of End Gas and Knock Phenomena (Third Report) (Comparison of Experiments with Numerical Simulations using Detailed Reaction Mechanism).
52.	Turbulent burning velocities and flame front shapes of H2/CO flames.
53.	Ekenechukwu C. Okafor, Yosuke Fukuda, Nagano Yukihide, Toshiaki Kitagawa, Turbulent Burning Velocities of Stoichiometric Hydrogen-Carbon Monoxide-Air Flames at Elevated Pressures, SAE 2014 International　Powertrain, Fuels & Lubricants Meeting, 2014.10.
54.	Influences of Mixture Temperature on Flame Propagation, Chemical Reactions in End Gas Region and Knock Phenomena (Second Report).
55.	Observation of Particulate Matter in iso-Octane/Air Premixed Flames with Transmission Electron Microscope.
56.	Influences of Mixture Temperature on Behavior of End Gas Region and Knock Phenomena.
57.	Variations of Flame Surface Density of Premixed Turbulent Flame with spherically Propagation and Pressure.
58.	Observation of Particulate Matter in Premixed Flames with Transmission Electron Microscope.
59.	Study on Propagating Flame and Chemical Reaction in End Gas on Occurrence of Pressure Oscillation in a Constant Volume Vessel.
60.	Influences of Mixture Temperature on Flame Propagation, Chemical Reactions in End Gas Region and Knock Phenomena -Change in Mixture Composition before Ignition at High Temperature-.
61.	Nagano Yukihide, Keiichiro Tomari, Hiroyuki Tsurudome, Akihiro Tsuda, Toshiaki Kitagawa, Turbulent Burning Velocities of Coal Gasification Gas under High CO2 Atmosphere, The 12th Japan-China Symposium on Coal and C1 Chemistry, 2013.10.
62.	Ekenechukwu C. Okafor, Nagano Yukihide, Toshiaki Kitagawa, Effects of Hydrogen Concentration on Stoichiometric H2/CH4/Air Premixed Turbulent Flames, SAE/KSAE 2013 International　Powertrains, Fuels & Lubricants Meeting, 2013.10.
63.	Turbulent Burning Velocities and Flame Shapes of H2/CO Flames under High CO2 Atmosphere.
64.	Effects of Effective Turbulence Intensity and Flame Stretch on Burning Velocity of Spherically Propagating Premixed Turbulent Flame.
65.	Combustion Properties of CO2 diluted H2/CO Flame at Elevated Pressure.
66.	Variation of Equivalence Ratio of Mixture Having Maximum Equilibrium Adiabatic Flame Temperature with Inert Gas Dilution.
67.	Effects of Pressure on Flame Front Shapes of Spherically Propagating Premixed Turbulent Flameity.
68.	Variations of Flame Surface Density of Spherically Propagating Premixed Turbulent Flame with Flame Propagation and Pressure.
69.	Variation of Flame Surface Density with Flame Propagation of Spherically Propagating Premixed Turbulent Flame.
70.	Fundamental Study on Knock Phenomena in Constant Volume Vessel(Observation of Propagating Flame and Chemical Reaction in End Gas).
71.	Nagano Yukihide, Tetsuya Ohira, Masayuki Oonaka, Yu Uyama, Toshiaki Kitagawa, One-dimensional Flame Propagation and Auto-ignition of End Gas in Constant Volume Vessel, The 8th INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2012.08.
72.	Relationship between Burning Velocity of Spherically Propagating Turbulent Flame and Flame Front Shape.
73.	Effects of CO2 Diluton on H2/CO Flames under the Condition of Constant Flame Temperature.
74.	Effects of Hydrogen Concentration on Hydrogen-Methane-Air Lean Laminar Flames.
75.	Flame Front Shapes of Spherically Propagating Turbulent Premixed Flames at Various Pressures.
76.	The Flame Front Shapes of Spherically Propagating Turbulent Premixed Flames and their Variation wth Effective Turbulence Intensity.
77.	Effects of Hydrogen Concentration on Laminar Hydrogen-Methane-Air Flames.
78.	The Combustion Properties of H2/CO Flame under Constant Flame Temperature.
79.	Influence of Turbulence on Flame Front Shape of Spherically Propagating Turbulent Premixed Flames.
80.	Combustion Properties of Hydrogen/Air Mixture with and without dilution.
81.	Effects of CO2 and N2 Dilutions on Laminar and Turbulent Flame Propagation.
82.	Turbulent Combustion Properties of Coal Gasification Diluted with CO2.
83.	Effects of Hydrogen Concentration on Hydrogen-Methane-Air Flames at Elevated Pressure, JSAE 2011 Spring Annual Congress.
84.	EFFECTS OF MIXTURE TEMPERATURE ON PREMIXED METHANE/AIR FLAMES.
85.	Effects of Diluent Gases on Combustion of Coal Gasification Gas: Comparison Between N2 and CO2 Dilutions.
86.	Study of Thermo-Diffusive Effects on Iso-Octane/Air Flames at Fixed Turbulence Karlovitz Number.
87.	Observation of One-dimensionally Flame Propagation and Auto-ignition of End Gas in a Constant Volume Bomb.
88.	Study on the Effects of Dilution Gas on the Combustion Properties of Coal Gasification Gas under the Constant Flame Temperatures.
89.	Influence of energy spectrum and scales of turbulence to the characteristics of turbulent flame propagation.
90.	Fundamental Study on Knock using a Constant Volume Bomb (Observation of Flame Propagation and Auto-ignition of End Gas).
91.	Influence of Thermo-diffusive Effects on Turbulent Propagating Iso-octane / Air Flames　at Fixed Turbulence Karlovitz Number, JSAE 2010 Fall Annual Congress.
92.	Effects of Diluent Gases on the Combustion of Coal Gasification Gas under the Condition of Constant Flame Temperature.
93.	Influence of Effective Turbulence Intensity on Burning Velocity of Spherically Propagating Turbulent Flame, JSAE 2010 Spring Annual Congress.
94.	Combustion Properties of Coal Gasification Gas for IGCC Power Generation System with CO2 Capture.
95.	Properties of Ethanol Laminar and Turbulent Premixed Flames.
96.	Turbulent combustion properties of iso-octane / air / inert gas mixture, JSAE 2009 Fall Annual Congress.
97.	Laminar and Turbulent Burning Velocities of Ethanol Premixed Flames, The 20th Internal Combustion Engine Symposium.
98.	Effects of Dilution on Iso-octane Premixed Propagating Flames (Comparison between CO2 and N2 dilution), JSAE 2009 Spring Annual Congress.
99.	Effects of CO2 Dilution on Iso-octane Laminar and Turbulent Premixed Flames　-On Stoichiometric Mixture-, JSAE 2008 Fall Annual Congress.
100.	The Effects of Pressure on Turbulent Burning Velocities of Spherically Propagating Hydrogen Flames, The 7th JSME-KSME Thermal and Fluids Engineering Conference .
101.	The Effects of Pressure on Laminar and Turbulent Burning Velocities of Spherically Propagating Iso-octane Flames, The Seventh International Conference on Modeling and Diagnostics for Advanced Engine Systems.
102.	Effects of Pressure on Laminar and Turbulent Burning Velocities of Iso-octane Premixed Flames, JSAE 2008 Spring Annual Congress.
103.	Propagation and Quench of Premixed Turbulent Flames, 2007 JSAE/SAE International Fuels and Lubricants Meeting.
104.	The Influence of Thermo-Diffusive Aspects on Premixed Turbulent Flame Propagation Rates at Elevated Pressures, The Sixth Asia-Pacific Conference on Combustion .
105.	Laminar and Turbulent Combustion of Methane-air and Propane-air Mixtures: An Examination and Correlation in terms of Lewis Number, FISITA 2006 World Automotive Congress.
106.	Unstretched Laminar Burning Velocity Estimations from Unstable Flames at Elevated Pressures, JSAE 2006 Autumn Annual Congress.
107.	Laminar Burning Velocity Measurements of Hydrogen-Air Mixtures at Elevated Pressures, , JSAE 2006 Spring Annual Congress.
108.	The Effects of Pressure on Turbulent Burning Velocity of Premixed Flames and their Correlations with Lewis Number, The 18th Internal Combustion Engine Symposium.

Educational activities are mainly for Departments of Mechanical Engineering, Hydrogen Energy Systems in Graduate School and Mechanical Enginnering Course, Department of Mechanical and Aerospace Enginnering in Undergraduate School. Teaching subjects include not only the special field of combustion, reactive gas dynamics but also energy fields widely.

Graduate School
　　Reactive Gas Dynamics
　　Mechanical Engineering A
　　Hydrogen Energy Engineering
　　Seminar in Mechanical Engineering I
　　Seminar for Mechanical Communication I
　　Investigation on Mechanical Engineering
　　Advanced Thermal Engineering
　　Seminar in Thermal Engineering

Under Graduate School
　　Introduction to Engineering
　　Communications
　　Combustion I
　　Combustion Ⅱ
　　Internal Combustion Engine Ⅰ
　　Advanced Engineering B
　　Fundamentals of Mechanical Engineering II

Previous subjects
Graduate School
　　Molecular Thermodynamics
　　Seminar in Molecular Thermodynamics
　　Seminar in Mechanical Science and Engineering I
　　Communication Training in Mechanical Science and Engineering I
　　Advanced Research in Combustion A
　　Advanced Seminar in Combustion A

Under Graduate School
　　Thermodynamics
　　Combustion
　　Exercise in Thermodynamics
　　Exercise in Thermal Science I
　　Exercise in Thermal Science II
　　Laboratory in Mechanical Engineering II
　　Design and Drafting for Mechanical Engineering
　　Exercise in Thermal Science I
　　Molecular Thermodynamics