Publications

International Journal

150. Youngmin Ki, Jungho Justin Kim, Seong-Young Lee, Joonsik Hwang, Choongsik Bae, Mixing Measurement on Hydrogen Jet by LIBS under Various Injection Strategies, Proceedings of the Combustion Institute, 2024.

149. Youngmin Ki, Jungho Justin Kim, Seong-Young Lee, Joonsik Hwang, Choongsik Bae, Measurement of Hydrogen Jet Equivalence Ratio using Laser Induced Breakdown Spectroscopy, SAE International Journal of Advances and Current Practices in Mobility, 2024.

148. Sanguk Lee, Choongsik Bae, Joonsik Hwang, Understanding of Hydrogen Jet Dynamics for Direct Injection Hydrogen Engines, INT J ENGINE RES, Published, 2023.04.19.

147. Sanguk Lee, Gyeonggon Kim and Choongsik Bae, Effect of Mixture Formation Mode on a Hydrogen Direct-Injection Engine under Different Load Conditions, Applied Thermal Engineering, 2022.06.05, Vol. 206, 118276.

146. Jiyong Shin, Sanguk Lee, Choongsik Bae, Yousang Son, Hangpyo Heo, and Juhun Lee, Effect of Late Intake Valve Closing on Particle Number Emissions of a Turbocharged Gasoline Direct Injection Engine, Fuel Processing Technology, 2022.06. 01, Vol. 230 ,107209

145. Sanguk Lee, Gyeonggon Kim and Choongsik Bae, Effect of the injection and ignition timing in a hydrogen lean stratified charge combustion engine, INT J ENGINE RES, Published, 2021.07.05

144. Sanguk Lee, Gyeonggon Kim and Choongsik Bae, Lean Combustion of Stratified Hydrogen in a Constant Volume Chamber , Fuel, Vol. 301, 121045, 2021

143. Wooyeong Kim, Chansoo Park and Choongsik Bae, Characterization of Combustion Process and Emissions in a Natural Gas/Diesel Dual-Fuel Compression-Ignition Engine, Fuel , Vol. 291, 120043. 2021. doi.org/10.1016/j.fuel.2020.120043. 

142. Sanguk Lee, Gyeonggon Kim and Choongsik Bae, Behavior of Hydrogen Hollow-Cone Spray Depending on the Ambient Pressure, International Journal of Hydrogen Energy, Vol. 46, 4538-4554, 2021

141. Sangjae Park, Jiyong Shin, and Choongsik Bae, "Combustion phenomena affecting particle emission under boosting conditions in a turbocharged gasoline direct injection engine", Fuel, Vol.286, 119362, 2021.

140. Park, C., Ebisu, M., & Bae, C. (-). Effects of turbocharger rotational inertia on engine and turbine performance in a turbocharged gasoline direct injection engine under transient and steady conditions. INT J ENGINE RES (Accepted 2020-11-04)

139. Park, C., Ebisu, M., & Bae, C. (2020). Effects of Turbocharger Rotation Inertia on Instantaneous Turbine Efficiency in a Turbocharged-Gasoline Direct Injection (T-GDI) Engine. ASME J ENG GAS TURB POWER. (Accepted 2020-09-29)

138. Park, C., Ebisu, M., & Bae, C. (2020). Improvement of instantaneous turbine efficiency through late intake valve phase (LIVP) in a turbocharged-gasoline direct injection (T-GDI) engine. Applied Thermal Engineering, 181, 115976.

137. Euijoon Shim, Hyunwook Park, Choongsik Bae, “Comparisons of advanced combustion technologies (HCCI, PCCI, and dual-fuel PCCI) on engine performance and emission characteristics in a heavy-duty diesel engine”, Fuel, Vol. 262, 116436. 2020

136. Mohammad Nazemi Babadi, Saeid Kheradmand, Choongsik Bae, “Experimental and Computational Investigation of Diesel and Gasoline Injection in a Direct Injection Compression Ignition Engine”, International Journal of Automotive Technology, Vol. 21(1), 23-32, 2020.

135. Hanyu Chen, Minfei Wang, Xi Wang, Deqiang Li, Zhixiang Pan, Choongsik Bae, “Experimental investigation of particulate matter structures under partially premixed combustion in a compression ignition engine”, Fuel, Vol. 259, 116286, 2020.

134. Hyunwook Park, Choongsik Bae, Changhyun Ha, “A comprehensive analysis of multiple injection strategies for improving diesel combustion process under cold-start conditions,” Fuel, Vol. 255, 115762, 2019.

133. Felix Sebastian Hirner, Joonsik Hwang, Choongsik Bae, Chetankumar Patel, Tarun Gupta, Avinash Kumar Agarwal, “Performance and emission evaluation of a small-bore biodiesel compression-ignition engine,” Energy, Vol. 183, 971-982, 2019.

132. Joonsik Hwang, Felix Sebastian Hirner, Choongsik Bae, Chetankumar Patel, Tarun Gupta, Avinash Kumar Agarwal, “HRTEM evaluation of primary soot particles originated in a small-bore biofuel compression-ignition engine,” Applied Thermal Engineering, Vol. 159, 113899, 2019

131. Hyunwook Park, Euijoon Shim, and ChoongsikBae, “Expansion of low-load operating range by mixture stratification in a natural gas-diesel dual-fuel premixed charge compression ignition engine,” Energy Conversion and Management, Vol. 194, 186-198, 2019.

130. Hyunwook Park, Euijoon Shim, and Choongsik Bae, "Injection strategy in natural gas-diesel dual-fuel premixed charge compression ignition combustion at low load conditions", Engineering, Vol. 5, Issue 3, 548-557, 2019

129. Hyunwook Park, Euijoon Shim, and Choongsik Bae, Improvement of combustion and emissions with exhaust gas recirculation in a natural gas-diesel dual-fuel premixed charge compression ignition engine at low load operations, Fuel, vol 235, 763-774, 2019.

128. Chetankuman Patel, Krishn Chandra, Joonsik Hwang, Rashmi A. Agarwal, Neeraj Gupta, Choongsik Bae, Tarun Gupta, and Avinash Kumar Agarwal, In-Cylinder Spray and Combustion Investigations in a Heavy-Duty Optical Engine Fueled With Waste Cooking Oil, Jatropha, and Karanja Biodiesels, Journal of Engergy Resources Technology-Transactions of The ASME, vol141(1), 2019.

127. Chetankuman Patel, Krishn Chandra, Joonsik Hwang, Rashmi A. Agarwal, Neeraj Gupta, Choongsik Bae, Tarun Gupta, and Avinash Kumar Agarwal, Comparative compression ignition engine performance, combustion, and emission characteristics, and trace metals in particulates from Waste cooking oil, Jatropha and Karanja oil derived biodiesels, Fuel, vol 236, 1366-1376

126. Felix Sebastian Hirner, Joongsik Hwang, Choongsik Bae, Chetankuman Patel, Tarun Gupta, and Avinash Kumar Agarwal, Nanostructure characterization of soot particles from biodiesel and diesel spray flame in a constant volume combustion chamber. Fuel, vol 235, 130-149. 2019

125. Shim, Euijoon, Hyunwook Park, and Choongsik Bae. Intake air strategy for low HC and CO emissions in dual-fuel (CNG-diesel) premixed charge compression ignition engine. Applied energy225, 1068-1077, 2018

124. Pietro Matteo Pinazzia, Joonsik Hwang, Donghoon Kim, Fabrice Fouchera, Choongsik Bae, Influence of injector spray angle and gasoline-diesel blending ratio on the low load operation in a gasoline compression ignition (GCI) engine, Fuel, vol 222(15), pp. 496-505, 2018.

123. Donghoon Kim, Stephan Sungsan Park and Choongsik Bae, Schlieren, Shadowgraph, Mie-scattering visualization of diesel and gasoline sprays in high pressure/high temperature chamber under GDCI engine low load condition, International Journal of Automotive Technology, vol 19(1), pp. 1-8, 2018.

122. Joonsik Hwang, Wooyeong Kim, Choongsik Bae, Wonho Choe, Jeonghwa Cha and Soohyung Woo. Application of a novel microwave-assisted plasma ignition system in a direct injection gasoline engine, Applied Energy, Vol. 205 pp. 562-576, 2017.

121. Behzad Rohani, Choongsik Bae, Morphology and nano-structure of soot in diesel spray and in engine exhaust, Fuel, Vol. 203, pp. 47-56, 2017.

120. Donghoon Kim and Choongsik Bae, Application of double-injection strategy on gasoline compression ignition engine under low load condition, Fuel, Vol. 203, pp. 792-801, 2017.

119. Jaeheun Kim, Choongsik Bae, The effects of late intake valve closing and different cam profiles on the in-cylinder flow field and the combustion characteristics of a compression ignition engine, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2017.

118. Joonsik Hwang, Youngsoo Park, Kihyun Kim, Jinwoo Lee and Choongsik Bae, Improvement of diesel combustion with multiple injections at cold condition in a constant volume combustion chamber, Fuel, Vol. 187, pp. 146-158, 2017.

117. Jaeheun Kim, Choongsik Bae, Emission reduction through internal and low-pressure loop exhaust gas recirculation configuration with negative valve overlap and late intake valve closing strategy in a compression ignition engine, International Journal of Engine Research, 2017.

116. Choongsik Bae and Jaeheun Kim, Alternative fuels for internal combustion engines, Proceedings of the Combustion Institute, Vol. 36, pp.3389-3413, 2017.

115. Jinyoung Jung, Sangjae Park, and Choongsik Bae, “Combustion characteristics of gasoline and n-butane under lean stratified mixture conditions in a spray-guided direct injection spark ignition engine, Fuel, Vol. 187, pp. 146-158, 2017.

114. Jaeheun Kim, Choongsik Bae, and Gangchul Kim, “The operation characteristics of a liquefied petroleum gas (LPG) spark-ignition free piston engine,” Fuel, Vol. 183, pp. 304-313, 2016.

113. Jaeheun Kim, Hyunwook Park, Choongsik Bae, Myungsik Choi, and Younghong Kwak, “Effects of water direct injection on the torque enhancement and fuel consumption reduction of a gasoline engine under high-load conditions.” INTERNATIONAL JOURNAL OF ENGINE RESEARCH, Vol. 17(7), pp. 795-808, 2016.

112. Cheolwoong Park, Seungmook Oh, Taeyoung Kim, Heechang Oh, and Choongsik Bae, “Combustion Characteristics of Stratified Mixture in Lean-Burn Liquefied Petroleum Gas Direct-Injection Engine With Spray-Guided Combustion System,” JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, Vol. 138(7), 2016.

111. Jaeheun Kim, Choongsik Bae, An investigation on the effects of late intake valve closing and exhaust gas recirculation in a single-cylinder research diesel engine in the low-load condition, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, Vol. 230(6), pp. 771-787, 2016.

110. Joonsik Hwang, Choongsik Bae, Jooyoung Park, Wonho Choe, Jeonghwa Cha and Soohyung Woo, “Microwave-assisted plasma ignition in a constant volume combustion chamber”, Combustion and Flame, Vol. 167, pp. 86-96, 2016.

109. Joonsik Hwang, Choongsik Bae and Tarun Gupta, “Application of waste cooking oil (WCO) biodiesel in a compression ignition engine”, Fuel, Vol. 176, pp. 20-31, 2016.

108. Behzad Rohani, Stephen Sungsan Park, Choongsik Bae, “Effect of injection strategy on smoothness, emissions and soot characteristics of PCCI-conventional diesel mode transition”, Applied Thermal Engineering, Vol. 93, pp. 1033-1042, 2016.

107. Jaeheun Kim, Hyunwook Park, Choongsik Bae, “Comparison of the effects of late intake valve closing (LIVC) strategy on engine performance between conventional diesel and di-methyl ether (DME) in a compression ignition engine”, Applied Energy, (SCI; IF 5.597)

106. Youngsoo Park, Joonsik Hwang, Choongsik Bae, Kihyun Kim, Jinwoo Lee and Soonchan Pyo, “Effects of diesel fuel temperature on fuel flow and spray characteristics”, Fuel, (SCI; IF 3.406)

105. Jaeheun Kim, Choongsik Bae, Myungsik Choi and Younghong Kwak, “The effects of flexible valve events with variable timing and duration on fuel consumption improvements in a gasoline engine”, International Journal of Engine Research , (SCI; IF 1.400)

104. Jaeheun Kim, Hyunwook Park, Choongsik Bae, Myungsik Choi and Younghong Kwak, “Effects of water direct injection (DI) on the torque enhancement and fuel consumption reduction of a gasoline engine under high-load conditions”, International Journal of Engine Research, (under review), (SCI; IF 1.400)

103. Yongjin Jung, Joonsik Hwang and Choongsik Bae, "Assessment of Particulate Matter in Exhaust Gas for Biodiesel and Diesel under Conventional and Low Temperature Combustion in a Compression Ignition Engine", International Jourmal of Engine Research, (under review) (SCI; IF 1.400)

102. Jaeheun Kim, Choongsik Bae and Gangchul Kim, "The operation characteristics of a luquefied petroleum gas (LPG) spark-ignition free piston engine", Fuel, (under review) (SCI; IF 3.406)

101. Karim Mehri Ghagfarokhi, Saeid Kheradmand and Choongsik Bae, “Numerical simulation of a cavitating flow in a diesel fuel injector to investigate the effects of geometrical parameters”, Proc. IMechE, Part D, Journal of Automobile Engineering. (under review) (SCI; IF 0.645)

100. Donghoon Kim, Joonsik Hwang, Sangwook Han and Choongsik Bae, “Effects of cylinder head temperature and coolant velocity on the erosion behavior of water jacket in a diesel engine”, Wear, (In press) (SCI; IF 1.262)

99. Jaeheun Kim and Choongsik Bae, “Potential of emission improvement through the application of late intake valve closing and exhaust gas recirculation in a diesel engine”, Proc. IMechE, Part D, Journal of Automobile Engineering. (In press) (SCI; IF 0.645)

98. Joonsik Hwang, Yongjin Jung and Choongsik Bae, "Spray and combustion of waste cooking oil biodiesel in a compression ignition engine", International Journal of Engine Research, (in press) (SCI; IF 1.400)

97. Joonsik Hwang, Yongjin Jung and Choongsik Bae, "Comprehensive assessment of soot particles from waste cooking oil biodiesel and diesel in a compression ignition engine", SAE International Journal of Fuel and Lubricants, vol.8, No. 2 (Paper No. 2015-01-0809), 2015. (citation : 0)

96. Kihyun Kim, Yongjin Jung, Donghoon Kim and Choongsik Bae, “Effect of injector configurations on combustion and emissions in a gasoline direct-injection compression ignition engine under low-load conditions”, International Journal of Engine Research, (In press) (SCI; IF 1.400)

95. Jangsik Kong and Choongsik Bae, “Effect of a conical nozzle orifice on the combustion and emissions in a direct injection compression ignition engine under low load conditions”, Proc. IMechE, Part D, Journal of Automobile Engineering, Vol.229, No. 1, pp3-13, 2015 (SCI; IF 0.645, citation : 0)

94. Youngsoo Park, Choongsik Bae, Christine Mounaïim-Rousselle and Fabrice Foucher, "Application of jet propellant-8 to premixed charge ignition combustion in a single-cylinder diesel engine", International Journal of Engine Research, Vol. 16, No. 1, pp92-103, 2015 (SCI; IF 1.400, citation : 0)

93. C.W. Park, H.C. Oh, S.D. Kim, H.S. Kim, S.Y. Lee, C.S. Bae, “Evaluation and visualiszation of stratefied ultra-lean combustion characteristics in a spray-guided type gasoline direct-injection engine”, International Journal of Automotive Technology, Vol. 15, No. 4, pp525-533, 2014. (SCI; IF 0.821, citation : 1)

92. Kihyun Kim, Zhi Wang, Buyu Wang, Shijin Shuai, Hongqiang Yang, Choongsik Bae, "Load expansion of naphtha multiple premixed compression ignition (MPCI) and comparison with partially premixed compression ignition (PPCI) and conventional diesel combustion (CDC)", Fuel, vol. 136, pp1-9, 2014 (SCI; IF 4.186, citation : 0)

91. Youngsoo Park and Choongsik Bae, "Experimental study on the effects of High/Low Pressure EGR proportion in a passenger car diesel engine“, Applied Energy, vo. 133, pp308-316, 2014 (SCI; IF 5.597, citation : 0)

90. Sangwook Han, Jaeheun Kim, and Choongsik Bae, “Effect of air-fuel mixing quality on characteristics of conventional and low temperature diesel combustion”, Applied Energy, vol. 119, pp454-466, 2014 (SCI; IF 5.597, ciation : 1)

89. Joonsik Hwang, Donghui Qi, Yongjin Jung, and Choongsik Bae, “Effect of injection parametes on the combustion and emission characteristics in a common-rail direct injection diesel engine fueled with waste cooking oil biodiesel”, Renewable Energy, vol. 63, pp9-17, 2014 (SCI-E; IF 2.989, citation : 8)

88. Hojjat Shabgard, Saeid Kheradmand and Choongsik Bae, “Numerical simulation of fuel trapped in crevice of the pilot injection in a homogeneous charge compression ignition engine”, Proc. IMechE, Part D, Journal of Automobile Engineering, 2014 (SCI; IF 0.645, ciation : 0)

87. Heechang Oh, Choongsik Bae, “Effect of split injection in a spray guided DISI engine under the lean-stratified operation”, Proc. IMechE, Part D, Journal of Automobile Engineering, vol. 228, no. 10, pp.1232-1244, 2014 (SCI; IF 0.645, citation : 0)

86. Sangwook Han, Hyunchul Kim, and Choongsik Bae, “Strategy for Mode Transition between Low Temperature Combustion and Conventional Combustion in a Diesel Engine”, SAE International Journal of Engines, vol. 6, No. 3, p1706-1715 (Paper No. 2013-24-0058), 2013. (citation : 0)

85. Jinyoung Jung, Heechang Oh and Choongsik Bae, “Characteristics of turbocharger with TiAl turbine wheel in a downsizing GDI engine”, SAE International Journal of Fuels and Lubricants, vol. 6, No. 3, p579-588 (Paper No. 2013-01-2499), 2013. (citation : 0)

84. D.H. Qi, C. Bae, Y.M. Feng, C.C. Jia, and Y.Z. Bian, "Preparation, characterization, engine combustion and emission characteristics of rapeseed oil based hybrid fuels", Fuel, vol. 60, pp98-106, 2013.12 (SCI; IF 3.357, citation : 3)

83. Jinyoung Jang, Yongjae Lee, and Choongsik Bae, “Improvement of DME HCCI Engine Combustion by Direct Injection and EGR”, Fuel vol. 113, pp617-624, 2013 (SCI; IF 3.357, citation : 3)

82. Kihyun Kim, Donghoon Kim, Yongjin Jung, and Choongsik Bae, “Spray and Combustion Characteristics of Gasoline and Diesel in a Direct Injection Compression Ignition Engine”, Fuel, vol. 109, pp616-626, 2013 (SCI; IF 3.357, citation : 18)

81. Donghui Qi, Choongsik Bae, Y.M. Feng, C.C. Jia and Y.Z. Bian, “Combustion and emission characteristics of a direct injection compression ignition engine using rapeseed oil based micro-emulsions”, Fuel, vol. 107, pp570-577, 2013 (SCI; IF 3.357, citation : 6)

80. Jaeheun Kim, Choongsik Bae, and Gangchul Kim, "Simulation on the effect of the combustion parameters on the piston dynamics and engine performance using the Wiebe function in a free piston engine“, Applied Energy, vol. 107, pp446-455, 2013 (SCI; IF 4.783, citation : 8)

79. Heechang Oh and Choongsik Bae, “Effects of the injection timing on spray and combustion characteristics in a spray-guided DISI engine under the lean-stratified operation”, Fuel, Vo. 107, pp225-235, 2013 (SCI; IF 3.357, citation : 8)

78. Yongjin Jung, Choongsik Bae, Seibum B. Choi, and Hyun Dong Shin, "Premixed Compression Ignition Combustion with Various Injector Configurations in a Heavy Duty Diesel Engine," Proc. IMechE, Part D, Journal of Automobile Engineering, vol. 227, No. 3, pp422-432, 2013 (SCI; IF 0.583, citation : 0)

77. Hyeonsook Yoon and Choongsik Bae, “Post Injection in a Compression Ignition Engine Fueled with Dimethyl-Ether”, Fuel, vol. 103, pp1123-31, 2013 (SCI; IF 3.248, citation : 2)

76. Jeeyeon Jeon, Choongsik Bae, "The effects of hydrogen addition on engine power and emission in DME premixed charge compression ignition engine", International Journal of Hydrogen Energy, vol.38, No.1, pp265-273, 2013 (SCI; IF 4.086, citation : 8)

75. Jungwoo Lee, Jaeheun Kim, Jungseo Park, Choongsik Bae, "Effect of Air-Conditioning System on the Fuel Economy in a Gasoline Engine Vehicle", Proc. IMechE, Part D, Journal of Automobile Engineering, vol. 227, No. 1, pp66-77, 2013 (SCI; IF 0.583, citation : 0)

74. Sangwook Han, Choongsik Bae, and Seibum B. Choi, "Effects of operating parameters on mode transition between low temperature combustion and conventional combustion in a light duty diesel engine," International Journal of Engine Research, vol. 13, No. 6, 2012, 8 (SCI-E; IF 0.903, citation : 4)

73. Jangsik Kong and Choongsik Bae, “Effect of Nozzle Hole Geometry on Non-Evaporating Diesel Spray Characteristics at high-Pressure Injection,” Atomization and Sprays, Atomization and Sprays, vol. 22, No.1, pp1–21, 2012 (SCI; IF 0.754, citation : 3)

72. Yongjin Jung, Kwang Chul Oh, Choongsik Bae, Hyun Dong Shin, “The Effect of Oxygen Enrichment on Incipient Soot Particles in Inverse Diffusion Flames,” Fuel, vol. 102, pp199-207, 2012 (SCI; IF 3.179, citation : 0)

71. Jinwoo Lee, Heechang Oh and Choongsik Bae, “Combustion Process of JP-8 and fossil Diesel fuel in a Heavy Duty Diesel Engine using two-color thermometry,” Fuel, vol. 102, pp264-273, 2012 (SCI; IF 3.179, citation : 12)

70. Jinwoo Lee and Choongsik Bae, “Application of JP-8 in a Heavy Duty Diesel Engine”, Fuel, vol. 90, Issue 5, pp1762-1770, 2011 (SCI; IF 3.179, citation : 4)

69. Gyubaek Cho, Dongsoo Jeong, Gunfeel Moon and Choongsik Bae, "Controlled auto-ignition characteristics of methane-air mixture in a rapid intake compression and expansion machine," Energy, vol. 35, No. 10, pp4184-4191, 2010 (SCI; IF 2.952)

68. Heechang Oh, Choongsik Bae and Kyungdouk Min,. 'Spray and Combustion characteristics of ethanol blended gasoline in a spray guided DISI engine under lean stratified operation," SAE International Journal of Engines, vol. 119, No. 3, pp213-222, (Paper No. 2010-01-2152), 2010 (citation : 17)

67. Kitae Yeom and Choongsik Bae, "Stratified liquefied petroleum gas-dimethyl ether compression ignition engine combustion at various intake valve open timings,“ International Journal of Engine Research, vol. 11, No. 3, pp187-197, 2010 (SCI-E; IF 0.903, citation : 0)

66. Ulugbek Azimov , Kiseong Kim, and Choongsik Bae, "Modeling of flame lift-off length in diesel low-temperature combustion with multi-dimensional CFD based on the flame surface density and extinction concept," Combustion Theory and Modelling, vol. 14, No. 2, pp155-175, 2010 (SCI; IF 1.485, citation : 9)

65. Seoksu Moon, Choongsik Bae and Essam F. Abo-Serie, "Liquid Film Thickness inside the High Pressue Swirl Injectors; Real Scale Measurement and Evaluation of Analytical Equations,“ Experimental Thermal and Fluid Science, vol. 34, No. 2, pp113-121, 2010 (SCI; IF 1.234, citation : 10).

64. Alessandro Schönborn, Nicos Ladommatos and Choongsik Bae, "Diffusion- and homogeneous-charge combustion of volatile ethers in a compression ignition engine", Energy and Fuel, vol. 23, No. 12, pp5865-5878, 2009 (SCI; IF 2.319, citation : 3).

63. Jinwook Lee, Rishin Patel, A Schonborn, Nicos Ladommatos, and Choongsik Bae, "Effect of Biofuels on Nanoparticle Emissions from Spark- and Compression-ignited Single-cylinder Engines with Same Exhaust Displacement volume," Energy and Fuels, vol. 23, No. 9, pp4363-4369, 2009 (SCI; IF 2.319, citation : 15).

62. Jinyoung Jang, and Choongsik Bae, "Effects of valve events on the engine efficiency in a homogeneous charge compression ignition engine fueled by dimethyl ether," Fuel, vol. 88, No. 7, pp1228-1234, 2009 (SCI; IF 3.179, citation : 18).

61. Gyubaek Cho, Gunfeel Moon, Dongsoo Jeong, and Choongsik Bae, "Effects of Internal Exhaust Gas Recirculation on Controlled Auto-igniton in a Methane Engine Combustion," Fuel, vol. 88, No. 6, pp1042-1048, 2009 (SCI; IF 3.179, citation : 12).

60. Jinyoung Jang, Kiseon Yang, Kitae Yeom, Choongsik Bae, Seungmook Oh and Kernyong Kang, "Improvement of DME HCCI Engine Performance by Fuel Injection Strategies and EGR," SAE International Journal of Fuel and Lubricants, ), vol. 117, No. 4, 1075-1083, (Paper No. 2008-01-1659), 2009 (citation : 8)

59. Kitae Yeom and Choongsik Bae, "Knock Characteristics in LPG-DME and Gasoline-DME Homogeneous Charge Compression Ignition Engines", Energy and Fuel, vol. 23, No. 4, pp1956-1964, 2009 (SCI; IF 2.319, citation : 2).

58. Kitae Yeom, Jungseo Park, Choongsik Bae, Jeongnam Park and Sungkun Kim, “The Anti-Vapor Lock of a Top-Feed Injector for a Liquefied Petroleum Gas Liquid Phase Injection Engine”, Energy and Fuel, vol. 23, No. 2, pp876-883, 2009 (SCI; IF 2.319, citation : 2).

57. Seoksu Moon, Essam F. Abo-Serie, Jaejoon Choi and Choongsik Bae, "Air flow and pressure inside the pressure-swirl spray and their effects on spray development," Experimental Thermal and Fluid Science, vol. 33, No. 2, pp222-231, Jan. 2009 (SCI; IF 1.234, citation : 15).

56. Seoksu Moon, Choongsik Bae, and Essam F. Abo-Serie, "Estimation of the Breakup Length for a Pressure-Swirl Spray from the Experimentally Measured Spray Angle", Atomization and Sprays, vol. 19, No. 3, pp235-246, 2009 (SCI; IF 0.754, citation : 3)

55. Seoksu Moon, Essam F. Abo-Serie and Choongsik Bae, "The Spray Characteristics of a Pressure-Swirl Injector with Various Exit Plane Tilts", International Journal of Multiphase Flow, vol. 34, No. 7, pp615-627, Jul. 2008 (SCI; IF 1.514, citation : 8).

54. Seoksu Moon, Jaejoon Choi, Kitae Yeom and Choongsik Bae, "Measurements of droplet size distribution and in-cylinder mixture formation from a slit injector in a direct-injection gasoline engine", Journal of Physics; Conference Series, vol. 85, 012004, 2007 (citation : 1)

53. Sanghoon Kook, Seik Park, and Choongsik Bae, "Influence of Early Fuel Injection Timings on Premixing and Combustion in a Diesel Engine", Energy & Fuels, vol. 22 , Issue. 1, pp331-337 , 2008 (SCI; IF 2.319, citation : 16)

52. Seokhwan Lee and ,Choongsik Bae “Design of a Heat Exchanger to Reduce the Exhaust Temperature in a Spark-Ignition Engine," International Journal of Thermal Sciences, vol 47, Issue 4, pp468-478, Apr 2008 (SCI; IF 1.77, citation : 9)

51. Seoksu Moon, Hyeonsook Yoon, Choongsik Bae and Essam F. Abo-Serie, "Generation of Robust and Well-Atomized Swirl Spray", SAE Transactions, Journal of Fuels and Lubricants, vol. 116, sec. 4, pp325-333 (Paper No. 2007-01-1852), 2008. (citation : 1)

50. Constantine Arcoumanis, Choongsik Bae, Roy Crookes and Eiji Tomita, "The Potential of Di-methyl Ether (DME) as an alternative Fuel for Compression-Ignition Engines ; A Review," Fuel, vol. 87, No. 7, pp1014-1030, 2007 (SCI; IF 3.179, citation : 410)

49. Kitae Yeom and Choongsik Bae, "Gasoline-Dimethyl Ether Homogeneous Charge Compression Ignition Engine," Energy & Fuels, vol. 21, No. 4, pp1942-1949, 2007 (SCI; IF 2.319, citation : 20)

48. Kihyung Lee, Choongsik Bae and Kernyong Kang, "The Effects of Tumble and Swirl Flows on Flame Propagation in a Four-Valve SI Engine," Applied Thermal Engineering, vol. 27, No. 11~12, pp2122-2130, 2007 (SCI; IF 1.922, citation : 43)

47. Youngmin Woo and Choongsik Bae, "Stratified exhaust gas recirculation under lean operation of a liquefied petroleum gas spark-ignition engine with liquid phase injection," Journal of Automobile Engineering, Proc. IMechE, vol. 221, No. 3, pp343-354, 2007 (SCI; IF 0.402, citation : 0)

46. Kitae Yeom, Jinyoung Jang and Choongsik Bae, "Homogeneous Charge Compression Ignition of LPG and Gasoline using Variable Valve Timing in an Engine," Fuel, vol. 86, No. 4, pp494-503, 2007 (SCI; IF 3.179, citation : 63)

45. Seokhwan Lee and Choongsik Bae, “Application of an Exhaust Heat Exchanger to Protect the Catalyst and Improve the Fuel Economy in a Spark-Ignition Engine," Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 221, No.5, pp621-628, 2007 (SCI; IF 0.402, citation : 5)

44. Seoksu Moon, Essam F. Abo-Serie, Jaejoon Choi and Choongsik Bae, "Internal and Near Nozzle Flow of a Pressure-Swirl Atomizer at the Variance of Fuel Temperature," Atomization and Sprays, vol. 17, No. 6, pp529-550, 2007 (SCI; IF 0.754, citation : 15)

43. Seoksu Moon, Choongsik Bae, Jaejoon Choi and Essam F. Abo-Serie, "The Influence of Airflow on Fuel Spray Characteristics from a Slit Injector," Fuel, vol. 86, No.3, pp400-409, Feb. 2007 (SCI; IF 3.179, citation : 31)

42. Sanghoon Kook, Choongsik Bae and Jangheon Kim, "Diesel-Fueled Homogeneous Charge Compression Ignition Engine with Optimized Premixing Strategies," International Journal of Engine Research, vol. 8, No. 1, pp127-138, 2007 (SCI; IF 0.903, citation : 16)

41. Sanghoon Kook, Choongsik Bae, Paul C Miles, Dae Choi, Michael Bergin and Rolf D. Reitz, "The Influence of Swirl Ratio and Injection Parameters on CO Emission and Fuel Conversion Efficiency for High-Dilution, Low-Temperature Combustion in an Automotive Diesel Engine," SAE Transactions, Journal of Engines, vol. 114, sec. 3, pp1370-1381 (Paper No. 2006-01-0197), 2007 (citation : 57)

40. J W Lee, K D Min, K Y Kang, C S Bae, E Giannadakis, M Gavaises and C Arcoumanis, "Effect of Piezo-Driven and Solenoid-Driven Needle Opening of Common-Rail Diesel Injectors on Internal Nozzle Flow and Spray Development", International Journal of Engine Research, vol. 7, No. 6, pp489-502, 2006 (SCI; IF 0.903, citation : 17)

39. Choongsik Bae and Jinsuk Kang, "The Structure of a Break-Up Zone in the Transient Diesel Sprayof a Valve Covered Orifice Nozzle," International Journal of Engine Research, vol. 7, No. 4, pp319-334, 2006 (SCI; IF 0.903, citation : 12)

38. Seokhwan Lee, Choongsik Bae, Robert Prucka, Gerald Fernades, Zoran S. Filipi and Dennis N. Assanis, "Quantificationof Thermal Shock in a Piezoelectric Pressure Transducer," SAE Transactions, Journal of Engines, vol. 114, sec. 3, pp1370-1381 (Paper No. 2005-01-2092), 2006 (citation : 7)

37. Sanghoon Kook, Choongsik Bae, Paul C Miles, Dae Choi and Lyle M Pickett, "The Influence of Charge Dilution and Injection Timing on Low-Temperature Diesel Combustion and Emissions," SAE Transactions, Journal of Fuel and Lubricants, vol. 114, sec. 4, pp1575-1595 (Paper No. 2005-01-3837), 2006 (won SAE Harry L. Horning Memorial Award ; SAE) (citation : 263)

36. Youngmin Woo, Kitae Yeom, Choongsik Bae, Seungmook Oh and Kernyong Kang, "Effects of Stratified EGR on the Performance of a Liquid Phase LPG Injection Engines," SAE Transactions, Journal of Engines, vol. 113, sec. 3, pp673-681 (Paper No. 2004-01-0982), 2005 (citation : 4)

35. Sanghoon Kook and Choongsik Bae, "Combustion Control using Two-Stage Diesel Fuel Injection in a Single-Cylinder PCCI Engine,"SAE Transactions, Journal of Engines, vol. 113, sec. 3, pp563-578 (Paper No. 2004-01-0938), 2005 (citation : 73)

34. Seungmook Oh and Choongsik Bae, "Mixture Distribution and Flame Propagation in a Heavy-Duty LPG Engine with Liquid Phase Injection," International Journal of Engine Research, vol. 5, No. 6, pp513-524, 2004 (SCI; IF 0.903, citation : 9)

33. Eunju Lee, Jinwoo Park, Kang Y. Huh, Jaejoon Choi and Choongsik Bae, "Simulation of Fuel/Air Mixture Formation for Heavy Duty Liquid Phase LPG Injection (LPLI) Engines," SAE Transactions, Journal of Engines, vol. 112, sec. 3, pp895-905, (Paper No. 2003-01-0636), 2004 (citation : 13)

32. Dong-Seok Choi, Choongsik Bae and Duck-Jool Kim, "Characterisation of an Evaporating Direct-Injected Gasoline Spray Using LIEF and PIV techniques," Journal of Automobile Engineering, Proc. IMechE, Part D, D02903, vol. 218, No.6, pp745-754, 2004 (SCI; IF 0.402, citation : 5)

31. Jaejoon Choi, Seokhwan Lee and Choongsik Bae, "Spray and Flow-Field Interaction of Gasoline Direct Injection,"Atomization and Sprays, vol. 14, No. 2, pp159-174, 2004 (SCI; IF 0.754, citation : 14)

30. Jun Yu and Choongsik Bae, "Dimethyl Ether (DME) Spray Characteristics in a Common-rail Fuel Injection System,"Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 217, No. 12 , pp1135-1144, 2003 (SCI; IF 0.402 ,citation : 38)

29. J. Kang, C. Bae and K. O. Lee, "Initial development of Non-evaporating Diesel Sprays in Common-rail Injection System,"International Journal of Engine Research, vol. 4, No. 4, pp283-298, 2003 (SCI; IF 0.903, citation : 23)

28. Seungmook Oh, Seungyu Kim and Choongsik Bae, "Flame Propagation Characteristics in a Heavy Duty LPG Engine with Liquid Phase Port Injection," SAE Transactions, Journal of Engines, vol. 111, sec. 3, pp2284-2296 (Paper No. 2002-01-1736), 2003 (citation : 11)

27. Seokhwan Lee, Choongsik Bae, Yongpyo Lee and Taesik Han, "Effects of Engine Operating Conditions on Catalytic Converter Temperature in an SI Engine,"SAE Transactions, Journal of Fuel and Lubricants, vol. 111, sec. 4, pp637-646 (Paper No. 2002-01-1677), 2003 (citation : 16)

26. Tongwon Lee, Choongsik Bae, Stani V. Bohac and Dennis Assanis, "Estimation of Air Fuel Ratio of a SI Engine from Exhaust Gas Temperature at Cold Start Condition," SAE Transactions, Journal of Fuel and Lubricants, vol. 111, sec. 4, pp592-600 (Paper No. 2002-01-1667), 2003 (citation : 6)

25. Janghee Lee, Sungwoo Cho, Sang Yong Lee and Choongsik Bae, "Bouncing of the Diesel Injector Needle at the Closing Stage,"Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 216, No. D8, pp691-700, Aug. 2002 (SCI; IF 0.402, citation : 4)

24. H. K. Lee, M. F. Russell, C. S. Bae and H. D. Shin, "Development of Cavitation and Enhanced Injector Models for Diesel Fuel Injection Equipment Simulation," Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 216, No. D7, pp607-618, Sep. 2002 (SCI; IF 0.402, citation : 14)

23. H. K. Lee, M. F. Russell and C. S. Bae, "Mathematical Model of Diesel Fuel lnjection Equipment Incorporating Nonlinear Fuel Compression," Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 216, No. D3, pp191-204, Mar. 2002 (SCI; IF 0.402, citation : 19)

22. Kyeong O. Lee, Roger Cole, Raj Sekar, Mun Y. Choi, Jin S. Kang, Choong S. Bae and Hyun D. Shin, "Morphological Investigation of Microstructure, Dimensions and Fractal Geometry of Diesel Particulates," Proceedings of the Combustion Institute, vol. 29, pp647-653, 2002 (SCI; IF 3.256, citation : 104)

21. Sung-Woo Cho, Sang-Min Choi and Choong-Sik Bae, "An Experimental Measurement of Lubrication Behavior of Piston Rings in a Spark Ignition Engine," JSME International Journal, Series B, vol. 45, No. 2, pp373-378, 2002 (SCI; IF 0.326, citation : 5)

20. Sung-Woo Cho, Sang-Min Choi and Choong-Sik Bae, "Measurement Devices for Piston Assembly Friction and Oil Film Thickness," International Journal of Vehicle Design(IJVD), vol. 29, No. 4, pp390-402, 2002 (SCI; IF 0.480, citation : 0)

19. Jaejoon Choi, Seokwhan Lee, Hyundong Shin and Choongsik Bae, "Fuel-Spray Characteristics of High Pressure Gasoline Injection in Flowing Fields," JSME International Journal, vol. 43 No. 4, pp576-581, 2000 (SCI; IF 0.326, citation : 7)

18. Changup Kim and Choongsik Bae, "Speciated Hydrocarbon Emissions from a Gas Fueled SI Engine with Various Operating Parameters,"Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 214, No. D7, pp795-808, 2000 (SCI; IF 0.402, citation : 12)

17. Sung-Woo Cho, Sang-Min Choi, Choong-Sik Bae, "Frictional Modes of Barrel Shaped Piston Rings under Flooded Lubrication," Tribology International, vol. 33, No. 8, pp545-551, 2000 (SCI; IF 1.690, citation : 47)

16. Youngkyo Chung, Hyunghyun Kim, Sangmin Choi and Choongsik Bae, "Flow Characteristics of Misfired Gas in the Exhaust Manifold of a Spark Ignition Engine,"Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 214, No. D4, pp373-381, 2000 (SCI; IF 0.402, citation : 7)

15. C G Kim, C S Bae and S M Choi, "Importance of Inter-Ring Crevice Volume as a source of UHC Emissions - Numerical Considerations,"Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 214, No. D4, pp395-403, 2000 (SCI; IF 0.402, citation : 4)

14. Changsoo Jang, Sangmin Choi, Choongsik Bae, "Characterization of Prototype High Pressure Swirl Injector Nozzles-Part II : CFD Evaluation of Internal Flow,"Atomization and Sprays, vol. 10, No. 2, pp179-197, 2000 (SCI; IF 0.754, citation : 3)

13. Changsoo Jang, Sangmin Choi, Choongsik Bae, “Characterization of Prototype High Pressure Swirl Injector Nozzles-Part II : CFD Evaluation of Internal Flow,”Atomization and Sprays, vol. 10, No. 2, pp179-197, 2000 (SCI; IF 0.754, citation : 3)

12. Changsoo Jang, Sangmin Choi, Choongsik Bae, Jooyoung Kim and Seungkook Baik, "Performance of Prototype High Pressure Swirl Injector Nozzles for Gasoline Direct Injection," SAE Transactions, Journal of Fuel and Lubricants, vol 108., sec 4., pp2165-2176, (Paper No. 1999-01-3654), 2000 (citation : 7)

11. Changup Kim and Choongsik Bae, "Hydrocarbon Emissions from a Gas Fueled SI Engine under Lean Burn Conditions," SAE Transactions, Journal of Fuel and Lubricants, vol 108., sec 4., pp1551-1558, (Paper No. 1999-01-3512), 2000 (citation : 1)

10. Chang Gi Kim, Choong Sik Bae and Sang Min Choi, "Gas Flows through the Inter-Ring Crevice and their Influence on UHC Emissions," SAE Transactions, Journal of Fuel and Lubricants, vol. 108., sec. 4., pp1181-1191, (Paper No. 1999-01-1533), 2000 (citation : 4)

9. Youngkyo Chung, Choong Sik Bae, Sang Min Choi and Kumjung Yoon, "Application of a Wide Range Oxygen Sensor for the Misfire Detection," SAE Transactions, Journal of Fuel and Lubricants, vol. 108., sec. 4., pp892-901, (Paper No. 1999-01-1485), 2000 (citation : 33)

8. Youngkyo Chung, Sangmin Choi, Choongsik Bae and Kumjung Yoon, "A New Concept of Misfire Detection Using a Wide-Range Oxygen Sensor in a Spark-Ignition Engine," Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 213, No. D6, pp585-594, Nov. 1999 (SCI; IF 0.402, Citation : 3)

7. C G Kim, S M Choi and C S Bae, "Effect of an Inter-Ring Crevice on Unburned Hydrocarbon Emission in an SI Engine," Journal of Automobile Engineering, Proc. IMechE, Part D, vol. 213, No. D3, pp227-233, May 1999 (SCI; IF 0.402 , Citation : 2)

6. K.Y. Kang, S.M. Oh, J.W. Lee, K.H. Lee, and C.S. Bae, "The Effects of Tumble Flow on Lean Burn Characteristics in a Four-Valve SI Engine,"SAE Transactions, Journal of Engines, vol. 106, sec. 3, pp981-989, (SAE Paper 970791), 1998 (citation : 10)

5. C. Arcoumanis, C-S. Bae, A. Nagwaney and J. H. Whitelaw,"Effect of EGR on Combustion Development in a 1.9L DI Diesel Optical Engine", SAE Transactions, Journal of Engines, vol. 104, sec. 3, pp1491-1515, (Paper No. 950850), 1996 (won Arch T. Colwell Award SAE) (citation : 74)

4. C. Arcoumanis, C-S. Bae, J. H. Whitelaw and Xu, H. M., "Imaging of Lean Premixed Flames in Spark-Ignition Engines", SAE Transactions, Journal of Fuels and Lubricants, vol. 103, sec. 4, pp1820-1836, (Paper No. 942052), 1995 (citation : 5)

3. C. Arcoumanis, C-S. Bae and Z, Hu, "Flow and Combustion in a Four-Valve, Spark-Ignition Optical Engine", SAE Transactions, Journal of Fuels and Lubricants, vol. 103, sec. 4, pp197-211, (Paper No. 940475), 1995 (citation : 41)

2. C. Arcoumanis and C-S. Bae, "Visualization of Flow/Flame Interaction in a Constant Volume Combustion Chamber," SAE Transactions, Journal of Engines, vol. 102, sec. 3., pp1227-1240, (Paper No. 930868), 1994 (citation : 21)

1. C. Arcoumanis and C-S. Bae, “Correlation between Spark Ignition Characteristics and Flame Development in a Constant-Volume Combustion Chamber”, SAE Transactions, Journal of Engines, vol. 101, sec. 3, pp556-570, (Paper No. 920413), 1993 (citation : 30)