*: S. Im being a corresponding author
†: Contributed equally
Manuscript under review or in revision (*: S. Im being a corresponding author)
2026
1. J. Park, Y. T. Guahk, E. K. Lee, H. Lee, S. Im, M. J. Lee, and N. Kim, "Influence of wall heat loss on emission characteristics of NH3/CH4/ air premixed flame in a model gas-turbine combustor," Fuel, vol. 404, Part A, 136012, 2026. https://doi.org/10.1016/j.fuel.2025.136012
2025
6. S. Kwon and S. Im*, "Life cycle assessment and techno-economic analysis of naphtha cracking electrification using plasma for carbon neutrality," Green Chemistry, vol.25, 11530-11546, 2025. https://doi.org/10.1039/D5GC02106E
5. Y. Jun and S. Im*, "Optimizing global reaction models for ammonia combustion using Genetic Algorithms," Journal of Mechanical Science and Technology, vol. 39, 2025. (cover page article) https://doi.org/10.1007/s12206-025-0850-9
4. H. Choi, J. Kang, and S. Im*, "Developing a Surrogate n-Hexane Pyrolysis Reactor Model through Artificial Neural Networks Learning," Chemical Engineering Journal, vol. 522, 167232, 2025. https://doi.org/10.1016/j.cej.2025.167232
3. S. Senadheera, X. Yuan, B. Yi, S. Im, and Y. Ok, "Plasma-modified biochar for energy and environmental sustainability," Current Opinion in Chemical Engineering, vol. 49, 101166, 2025. https://doi.org/10.1016/j.coche.2025.101166
2. C. Lee and S. Im*, "Shortened Flowfield Design for Streamline-Traced Intakes," Aerospace Science and Technology, vol. 165, 110527, 2025. https://doi.org/10.1016/j.ast.2025.110527
1. C. Suresh, A. Awasthi, B. Kumar, S. Im*, and Y. Jeon, "Advances in battery thermal management for electric vehicles: A comprehensive review of hybrid PCM-metal foam and immersion cooling technologies," Renewable and Sustainable Energy Reviews, vol. 208, 115021, 2025. https://doi.org/10.1016/j.rser.2024.115021
2024
9. B. Lee and S. Im*, "Energy, exergy, and exergoeconomic analyses of plastic waste-to-energy integrated gasification combined cycles with heat recovery at a gasifier," Applied Energy, vol. 355, 122243, 2024. https://doi.org/10.1016/j.apenergy.2023.122243
8. S. Kwon and S. Im*, "Thermodynamic evaluation of integrated plasma gasification combined cycle with plastic waste feedstock," Chemical Engineering Journal, vol. 482, 148771, 2024. https://doi.org/10.1016/j.cej.2024.148771
7. S. Kwon and S. Im*, "Developing a versatile detail mechanism for NH3 combustion," Journal of Mechanical Science and Technology, vol. 38(3), 1585-1599, 2024. https://doi.org/10.1007/s12206-024-0249-z
6. D. Yeom and S. Im*, "Rectangular-to-elliptical shape transition intakes with various leading-edge for performance enhancement," Acta Astronautica, vol. 220, 12-26, 2024. https://doi.org/10.1016/j.actaastro.2024.04.011
5. H. Jung and S. Im*, "Off-design characteristics of a scoop-type streamline-tracing scramjet inlet," Aerospace Science and Technology, vol. 149, 109139, 2024. https://doi.org/10.1016/j.ast.2024.109139
4. W. Kang, Y. Kwon, G. Park, C. Bong, S. Im, and M. Bak, "Atmospheric-pressure microwave plasma reforming of ethane-carbon dioxide mixtures," Journal of CO2 Utilization, vol. 86, 102894, https://doi.org/10.1016/j.jcou.2024.102894
3. C. Bong, S. Im, H. Do, and M. Bak, "Estimation of the Global Equivalence Ratio of a Swirl Combustor from a Small Number of Absorption Spectra Using Machine Learning," Applied Spectroscopy , vol.78, 1078-1088, 2024.
2. K. Kwon, S. Im, S. Kim, Y. Lee, and C. Kwon, "Estimation of forest biomass from aerial photographs using Mask R-CNN and Bayesian regression," Forests, vol. 15, 1881, 2024. https://doi.org/10.3390/f15111881
1. C. Bong, M. Ali, S. Im, H. Do, and M. Bak, "Machine learning-based prediction fo swirl combustor operation from flame imaging," Engineering Applications of Artificial Intelligence, vol. 138, part B, 109374, 2024. https://doi.org/10.1016/j.engappai.2024.109374
2023
4. S. Kwon†, J. Kang†, B. Lee†, S. Hong, Y. Jeon, M. Bak, and S. Im*, "Nonviable carbon neutrality with plastic waste-to-energy," Energy & Environmental Science, vol. 16, 3074-3087, 2023. https://doi.org/10.1039/D3EE00969F
3. J. Hwang and S. Im*, "Boundary layer suction timing and location effects on unstarting flows in a model scramjet," Aerospace Science and Technology, vol. 140, 108454, 2023. https://doi.org/10.1016/j.ast.2023.108454
2. D. Kim, C. Bong, S. Im, and M. Bak, "Simultaneous measurement of carbon emission and gas temperature via laser-induced breakdown spectroscopy coupled with machine learning," Optics Express, vol. 31, 7093-7046, 2023. https://doi.org/10.1364/OE.484462
1. K. Kwon, C. G. Kwon, Y.-e. Lee, S. Y. Kim, and S. Im, "Aerial imaging-based fuel information acquisition for wildfire research in Northeastern South Korea," Forests, vol. 14, 2126, 2023. https://doi.org/10.3390/f14112126
2022
3. S. Kwon and S. Im*, "Feasibility of non-thermal plasma gasification for a waste-to-energy power plant," Energy Conversion and Management, vol. 251, 114978, 2022. https://doi.org/10.1016/j.enconman.2021.114978
2. J. Yang, E. V. Barnat, S. Im, and D. B. Go, "Spatiotemporally resolved measurements of electric field around a piezoelectric transformer using electric-field induced second harmonic (E-FISH) generation," Journal of Physics D: Applied Physics, vol. 55, 225203, 2022. https://doi.org/10.1088/1361-6463/ac406a
1. G. Di Cristina, M. R. Gallagher, N. S. Skowronski, A. Simeoni, A. Rangwala, and S. Im*, "Design and implementation of a portable, large-scale wind tunnel for wildfire research," Fire Safety Journal, vol. 131, 103607, 2022. https://doi.org/10.1016/j.firesaf.2022.103607
2021
6. G. Di Cristina, N. Skowronski, A. Simeoni, A. Rangwala, and S. Im*, "Flame spread predictions using an empirical B-number model and stagnation point flow," Combustion and Flame, vol. 234, 111644, 2021. https://doi.org/10.1016/j.combustflame.2021.111644
5. K. Kang, N. Kato, S. Im, and H. Do, "Fast-acting boundary-layer suction control of unstarting flows in an ethylene-fueled dual-mode scramjet," AIAA Journal, vol. 59, pp. 3106-3117, 2021. https://doi.org/10.2514/1.J060179
4. G. Di Cristina, S. Kozhumal, A. Simeoni, N. Skowronski, A. Rangwala, and S. Im*, “Forced convection fire spread along wooden dowel array,” Fire Safety Journal (13th IAFSS symposium), vol. 130, pp. 103090, 2021. https://doi.org/10.1016/j.firesaf.2020.103090
3. G. Di Cristina, N. Skowronski, A. Simeoni, A. Rangwala, and S. Im*, "Flame spread behavior characterization of discrete fuel array under a forced flow," Proceedings of the Combustion Institute, vol. 38, pp. 5109-5117, 2021. https://doi.org/10.1016/j.proci.2020.05.035
2. N. Kato and S. Im*, "Flame dynamics under various backpressures in a model scramjet with and without a cavity flameholder," Proceedings of the Combustion Institute, vol. 38, pp. 3861-3868, 2021. https://doi.org/10.1016/j.proci.2020.07.110
1. L. Wermer, J. K. Lefkowitz, T. Ombrello, and S. Im*, "Spark and flame kernel interaction with dual-pulse laser-induced spark ignition in a lean premixed methane–air flow," Energy, vol. 215, 119162, 2021. https://doi.org/10.1016/j.energy.2020.119162
2020
3. O. Jaenicki, F. Hita, J. Yang, S. Im*, and D. Go, "Hand-generated piezoelectric mechanical-to-electrical energy conversion plasma," Applied Physics Letters, vol. 117, 093901, 2020. https://doi.org/10.1063/5.0018967
2. K. Kang, L. Wermer, S. Im*, S. J. Song, and H. Do, “Fast-acting boundary-layer suction to control unstarting and unstarted flows,” AIAA Journal, vol. 58, pp. 2475-2485, 2020. https://doi.org/10.2514/1.J058887
1. J. Yang, S. Im*, and D. Go, “Time-resolved characterization of a free plasma jet formed off the surface of a piezoelectric crystal,” Plasma Sources Science and Technology, vol. 29, 045016, 2020. https://doi.org/10.1088/1361-6595/ab7987
2019
4. L. Wermer, and S. Im*, “Plasma and flow induced by single-and dual-pulse laser-induced breakdown in stationary air,” Plasma Sources Science and Technology, vol. 28, 065004, 2019. https://doi.org/10.1088/1361-6595/ab1cfe
3. G. Di Cristina, K. Kang, S. J. Song, H. Do, J. H. Choi, and S. Im*, “Visualization of scoop inlet-circular isolator flows,” Journal of Visualization, vol. 22, pp. 359-369, 2019. https://doi.org/10.1007/s12650-018-00541-6
2. L. Wermer, J. K. Lefkowitz, T. Ombrello, and S. Im*, “Ignition enhancement by dual-pulse laser-induced spark ignition in a lean premixed methane-air flow,” Proceedings of the Combustion Institute, vol. 37, pp. 5605-5612, 2019. https://doi.org/10.1016/j.proci.2018.06.025
1. C. Bong, J Jeong, D. Shin, S. Im, and M. S. Bak, “Residence time distribution measurements for model flows based on laser-induced breakdown spectroscopy,” Journal of Mechanical Science and Technology, vol. 33, pp. 1987-1992, 2019. https://doi.org/10.1007/s12206-019-0349-3
2018
3. J. Lee, C. Bong, S. H. Lee, S. Im, and M. S. Bak, “Laser-induced breakdown thermometry via time-of-arrival measurements of associated acoustic waves,” Applied Physics Letters, vol. 113, art. no. 123504, 2018. https://doi.org/10.1063/1.5049513
2. S. Im* and H. Do, “Unstart phenomena induced by flow choking in scramjet inlet-isolators,” Progress in Aerospace Sciences, vol. 97, pp. 1-21, 2018. https://doi.org/10.1016/j.paerosci.2017.12.001
1. L. Wermer, J. K. Lefkowitz, T. Ombrello, M. Bak, and S. Im*, “Spatiotemporal evolution of the plasma from dual-pulsed laser-induced breakdown in atmospheric air,” Plasma Sources Science and Technology, vol. 27, art. no. 015012, 2018. https://doi.org/10.1088/1361-6595/aa9fe2
2017
5. H. Sun, J. Lee, H. Do, S. Im, and M. Bak,” Optical emission spectroscopic studies on atmospheric electrodeless microwave plasma in carbon dioxide-hydrogen mixture,” IEEE Transactions on Plasma Science, vol. 45, pp. 3154-3159, 2017. https://doi.org/10.1109/TPS.2017.2767571
4. J. Lee, H. Sun, S. Im, and M. Bak, “Formation of nitrogen oxides from atmospheric electrodeless microwave plasmas in nitrogen–oxygen mixtures,” Journal of Applied Physics, vol. 122, art. no. 083303, 2017. https://doi.org/10.1063/1.4996790
3. H. Sun, J. Lee, H. Do, S. Im, and M. Bak, “Experimental and numerical studies on carbon dioxide decomposition in atmospheric electrodeless microwave plasmas,” Journal of Applied Physics, vol. 122, art. no. 033303, 2017. https://doi.org/10.1063/1.4994008
2. B. Coriton, S. Im, M. Gamba, and J. Frank, “Flow Field and Scalar Measurements in a Series of Turbulent Partially-Premixed Dimethyl Ether/Air Jet Flames,” Combustion and Flame, vol. 180, pp. 40-52, 2017. https://doi.org/10.1016/j.combustflame.2017.02.014
1. L. Wermer, J. Hansson, and S. Im*, “Dual-pulse laser-induced spark ignition and flame propagation of a methane diffusion jet flame,” Proceedings of the Combustion Institute, vol. 36, pp. 4427-4434, 2017. https://doi.org/10.1016/j.proci.2016.07.115
2016
1. S. Im*, D. Baccarella, B. McGann, Q. Liu, L. Wermer, and H. Do, “Unstart phenomena induced by mass addition and heat release in a model scramjet,” Journal of Fluid Mechanics, vol. 797, pp. 604-629, 2016. https://doi.org/10.1017/jfm.2016.282
2015
3. M. Bak, L. Wermer, and S. Im*, “Schlieren imaging investigation of successive laser-induced breakdowns in atmospheric-pressure air,” Journal of Physics D: Applied Physics, vol. 48, art. no. 485203, 2015. https://doi.org/10.1088/0022-3727/48/48/485203
2. M. Bak, S. Im, and M. A. Cappelli, “Nanosecond-pulsed discharge plasma splitting of carbon dioxide,” IEEE Transactions on Plasma Science, vol. 43, pp. 1002-1007, 2015. https://doi.org/10.1109/TPS.2015.2408344
1. B. Coriton, M. Zendehdel, S. Ukai, A. Kronenburg, O. T. Stein, S. Im, M. Gamba, and J. Frank, “Imaging measurements and LES-CMC modeling of a partially-premixed turbulent Dimethyl Ether/air jet flame,” Proceedings of the Combustion Institute., vol. 35, pp. 1251-1258, 2015. https://doi.org/10.1016/j.proci.2014.06.042
2014
2. S. Im, M. Bak, N. Hwang, and M. A. Cappelli, “Experiments and simulations of one atmospheric lossy dielectric barrier Townsend discharge,” Journal of Physics D: Applied Physics, vol. 47, art. no. 085202, 2014. https://doi.org/10.1088/0022-3727/47/8/085202
1. M. Bak, S. Im, M. G. Mungal, and M. A. Cappelli, “A study of laser-induced breakdown plasma using successive laser pulses in atmospheric pressure air and premixed ethane-air mixtures,” Combustion and Flame, vol. 161, pp. 1744-1751, 2014. https://doi.org/10.1016/j.combustflame.2013.12.029
2013
6. S. Im*, M. Bak, M. G. Mungal, and M. A. Cappelli, “Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed,” IEEE transactions on Plasma Science, vol. 41, pp. 3245-3253, 2013. https://doi.org/10.1109/TPS.2013.2278027
5. S. Im*, M. Bak, and M. A. Cappelli, “A study of flow induced by laser induced breakdown-enhanced dielectric barrier discharges in air,” Applied Physics Letters, vol.103, art. no. 164102, 2013. https://doi.org/10.1063/1.4825373
4. S. Im*, M. Bak, M. G. Mungal, and M. A. Cappelli, “Plasma Actuator Control of a Lifted Ethane Turbulent Jet Diffusion Flame,” IEEE transactions on Plasma Science, vol. 41, pp. 3293-3298, 2013. https://doi.org/10.1109/TPS.2013.2277722
3. M. Bak, S. Im, M. G. Mungal, and M. A. Cappelli, “Studies on the stability limit extension of premixed and jet diffusion flames of methane, ethane, and propane using nanosecond repetitive pulsed discharge plasmas,” Combustion and Flame, vol. 160, pp. 2396-2403, 2013. https://doi.org/10.1016/j.combustflame.2013.05.023
2. J. Dedrick, S. Im, M. A. Cappelli, R. W. Boswell, and C. Charles, “Surface discharge plasma actuator driven by a pulsed 13.56 MHz-5 kHz voltage waveform,” Journal of Physics D: Applied Physics, vol. 46, art. no. 405201, 2013. https://doi.org/10.1088/0022-3727/46/40/405201
1. J. Dedrick, S. Im, M. A. Cappelli, R. W. Boswell, and C. Charles, “Induced flow and optical emission generated by a pulsed 13.56 MHz-5 kHz plasma actuator,” IEEE transactions on Plasma Science, vol. 41, pp. 3275-3278, 2013. https://doi.org/10.1109/TPS.2013.2279879
2012
2. S. Im*, and M. A. Cappelli, “Dielectric barrier discharge induced boundary layer suction,” Applied Physics Letters, vol. 100, art. no. 254103, 2012. https://doi.org/10.1063/1.4731288
1. S. Im*, H. Do, and M. A. Cappelli, “The manipulation of an unstarting supersonic flow by plasma actuator,” Journal of Physics D: Applied Physics, vol. 45, art. no. 485202, 2012. https://doi.org/10.1088/0022-3727/45/48/485202
2011
2. H. Do, S. Im, M. G. Mungal, and M. A. Cappelli, “Visualizing supersonic inlet duct unstart using planar laser Rayleigh scattering,” Experiments in Fluids, vol. 50, pp. 1651-1657, 2011. https://doi.org/10.1007/s00348-010-1028-4
1. H. Do, S. Im, M. G. Mungal, and M. A. Cappelli, “The influence of boundary layers on supersonic inlet flow unstart induced by mass injection,” Experiments in Fluids, vol. 51, pp. 679-691, 2011. https://doi.org/10.1007/s00348-011-1077-3
2010
3. S. Im*, H. Do, and M. A. Cappelli, “Dielectric barrier discharge control of a turbulent boundary layer in a supersonic flow,” Applied Physics Letters, vol. 97, art. no. 041503, 2010. https://doi.org/10.1063/1.3473820
2. H. Do, S. Im, M. A. Cappelli, and M. G. Mungal, “Plasma assisted flame ignition of supersonic flows over a flat wall,” Combustion and Flame, vol. 157, pp. 2298-2305, 2010. https://doi.org/10.1016/j.combustflame.2010.07.006
1. W. Kim, S. Im, H. Do, and M. G. Mungal, “Flame liftoff height dependence on geometrically modified bluff bodies in a vitiated flow,” Experiments in Fluids, vol. 49, pp. 27-41. 2010. https://doi.org/10.1007/s00348-009-0733-3