Publications old

Publications old

Theses
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  1. Joseph K. Lefkowitz, “Plasma-Assisted Combustion: Fundamental Studies and Engine Applications,” Princeton University, 2015.
  2. Iker Laso Miqueo, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” Technion – Israel Institute of Technology, 2021.
  3. Karin Linshitz, “Combustion Flow Characterization by Tunable Diode Laser Absorption Spectroscopy of Water Molecules,” Technion – Israel Institute of Technology, 2021.
  4. Joel Joachim van der Lee, “Impact of the Injection Temperature of Liquid Fuel on the Blowout Limits in a Cavity-Based Scramjet Combustor,” Technion – Israel Institute of Technology, 2021.
Refereed papers in professional journals
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  1. K. Lefkowitz, J.S. Heyne, S.H. Won, S. Dooley, H.H. Kim, F.M. Haas, S. Jahangirian, F.L. Dryer, Y. Ju, “A Chemical Kinetic Study of tertiary-Butanol in a Flow Reactor and a Counterflow Diffusion Flame,” Combust. Flame 159 968-978, 2012.
  2. K. Lefkowitz, S.H. Won, Y. Fenard, Y. Ju, “Uncertainty Assessment of Species Measurements in Acetone Counterflow Diffusion Flames,” Proc. Combust. Inst. 34, 813-820, 2013.
  3. K. Lefkowitz, P. Gou, T. Ombrello, S.H. Won, C. Stevens, J. Hoke, F. Schauer, Y. Ju, “Schlieren Imaging and Pulsed Detonation Engine Testing of Ignition by a Nanosecond Repetitively Pulsed Discharge,” Combust. Flame 162, 2496-2507, 2015.
  4. K. Lefkowitz, M. Uddi, B.C. Windom, G. Lou, Y. Ju, “In situ Species Diagnostics and Kinetic Study of Plasma Activated Ethylene Dissociation and Oxidation in a Low Temperature Flow Reactor,” Proc. Combust. Inst. 35, 3505-3512, 2015.
  5. K. Lefkowitz, P. Guo, A. Rousso, Y. Ju, “Species and Temperature Measurements of Methane Oxidation in a Nanosecond Repetitively Pulsed Discharge,” Phil. Trans. R. Soc. A 373, 20140333, 2015.
  6. Ju, J.K. Lefkowitz, C.B. Reuter, S.H. Won, X. Yang, S. Yang, W. Sun, Z. Jiang, Q. Chen, “Plasma Assisted Low Temperature Combustion,” Plasma Chemistry and Plasma Processing 36, 85-105, 2016.
  7. Yang, J.K. Lefkowitz, S. Nagaraja, X. Gao, V. Yang, Y. Ju, W. Sun, “Numerical and Experimental Investigation of Nanosecond Pulsed Plasma Activated C2H4/O2/Ar Mixtures in a Flow Reactor,” J. Propul. Power 32, 1240-1252, 2016.
  8. Ju, J.K. Lefkowitz, C.B. Reuter, S.H. Won, X. Yang, S. Yang, W. Sun, Z. Jiang, Q. Chen, “Plasma Assisted Low Temperature Combustion,” Plasma Chemistry and Plasma Processing 36, 85-105, 2016.
  9. Rousso, S. Yang, J.K. Lefkowitz, W. Sun, Y. Ju, “Low Temperature Oxidation and Pyrolysis of n-Heptane in Nanosecond-pulsed Plasma Discharges,” Proc. Combust. Inst 36, 4105-4112, 2017.
  10. K. Lefkowitz, T. Ombrello, “An Exploration of Inter-pulse Coupling in Nanosecond Pulsed High Frequency Discharge Ignition,” Combust. Flame 180, 136-147, 2017.
  11. Wermer, J.K. Lefkowitz, T. Ombrello, M.S. Bak, S. Im, “Spatiotemporal Evolution of the Plasma from Dual-pulsed Laser-induced Breakdown in an Atmospheric Air”, Plasma Sources Sci. Technol. 27, 015012, 2018.
  12. K. Lefkowitz, T. Ombrello, “Reduction of Flame Development Time in Nanosecond Pulsed High Frequency Discharge Ignition of Flowing Mixtures,” Combust. Flame 193, 471-480, 2018.
  13. D. Stachler, J.K. Lefkowitz, J.S. Heyne, S.D. Stouffer, T.M. Ombrello, J.D. Miller, “The impact of residence time on ignitability and time to ignition in a toroidal jet-stirred reactor,” Proc. Combust. Inst. 37, 5039-5046, 2019.
  14. M. Bonebrake, D.L. Blunck, J.K. Lefkowitz, T.M. Ombrello, “The Effect of Nanosecond Pulsed High Frequency Discharges on the Temperature Evolution of Ignition Kernels,” Proc. Combust. Inst. 37, 5561-5568, 2019.
  15. Wermer, J.K. Lefkowitz, T. Ombrello, S. Im, “Ignition Enhancement by Dual-pulse Laser-induced Spark Ignition in a Lean Premixed Methane-air Flow,” Proc. Combust. Inst. 37, 5604-5612, 2019.
  16. F. Adams, J.A. Miles, T. Ombrello, R. Brayfield, J. Lefkowitz, “The Effect of Inter-Pulse Coupling on Gas Temperature in Nanosecond-Pulsed High-Frequency Discharges,” J. Phys. D Appl. Phys. 52, 355203, 2019.
  17. Cuppoletti, T. Ombrello, C. Carter, S. Hammack, J. Lefkowitz, “Ignition Dynamics of a Pulse Detonation Igniter in a Supersonic Cavity Flameholder,” Combust. Flame 215, 376-388, 2020.
  18. Wermer, J.K. Lefkowitz, T. Ombrello, S.-K. Im, “Spark and flame kernel interaction with dual-pulse laser-induced spark ignition in a lean premixed methane-air flow,” Energy 215, 119162, 2021.
  19. K. Lefkowitz, S.D. Hammack, C. Carter, T. Ombrello, “Elevated OH Production from NPHFD and its Effect on Ignition,” Proc. Combust. Inst. 38, 6671-6678, 2021.
  20. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” Proc. Combust. Inst. 38, 6661-6669, 2021.
  21. C. Opacich, T. Ombrello, J.S. Heyne, J.K Lefkowitz, “Analyzing the Ignition Differences Between Conventional, Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges,” Proc. Combust Inst. 38, 6615-6622, 2021.
  22. Faingold, J.K. Lefkowitz, “Plasma reforming for enhanced ammonia-air ignition: a numerical study,” Fuel Communications 12, 100070, 2022.
  23. Shen, I. Laso Miqueo, N. Rozin, J.K. Lefkowitz, “On Energy Distribution and Minimum Ignition Power for Ignition of Flowing Mixtures,” Proc. Combust. Inst. (In press).
  24. Nath, Iker Laso, L. Mallick, Z. Sobe, S. Koffler, B. Blumer-Ganon, E. Borzin, N. Libis, J.K. Lefkowitz, “Comprehensive Ignition Characterization of a Non-toxic Hypergolic Hybrid Rocket Propellant,” Proc. Combust. Inst. (In press).
  25. Hamo, D.R. Lev, M. Rubanovich, A. Kapulkin, J. Lefkowitz, “Experimental investigation of an external discharge very low anode power (< 20 W) hall thruster.” Journal of Electric Propulsion 1, 1-22, 2022.
  26. A. Castaneda, S. Hassid, J. Lefkowitz, B. Natan, “Modeling Hypergolic Ignition based on Thermal Diffusion for Spherical and Cylindrical Geometries,” Combustion Science and Technology, 1-18, 2022.
Refereed papers in conference proceedings
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  1. Heyne, J.K. Lefkowitz, F.M. Haas, S.H. Won, S. Dooley, H.H. Kim, S. Jahangirian, F.L. Dryer, Y. Ju, “Combustion Kinetics Study of t-Butanol,” 7th U.S. National Combustion Meeting, Atlanta, Georgia, 2011, presentation.
  2. K. Lefkowitz, J.S. Heyne, S.H. Won, S. Dooley, H.H. Kim, F.M. Haas, S. Jahangirian, F.L. Dryer, Y. Ju. “A Chemical Kinetic Study of the Alternative Transportation Fuel, tertiary-Butanol,” 49th AIAA Aerospace Sciences Meeting, Orlando, Florida, 2011, AIAA 2009-698, presentation.
  3. K. Lefkowitz, Y. Ju, R. Tsuruoka, Y. Ikeda, “A Study of Plasma-Assisted Ignition in a Small Internal Combustion Engine,” 50th AIAA Aerospace Sciences Meeting, Nashville, Tennessee, 2012, AIAA 2012-1133, presentation.
  4. Uddi, J.K. Lefkowitz, B. Windom, Y. Ju, “Species Measurements of Ethylene Oxidation in a Nanosecond-Pulsed Plasma Discharge Using QCL Absorption Spectroscopy Near 7.6µm,” 51st AIAA Aerospace Sciences Meeting, Grapevine, Texas, 2013, AIAA 2013-0435, presentation.
  5. K. Lefkowitz, B.C. Windom, W. MacDonald, S. Adams, T. Chen, M. Uddi, Y. Ju, “Time Dependent Measurements of Species Formation in Nanosecond-Pulsed Plasma Discharges in C2H4/O2/Ar Mixtures” 52nd AIAA Aerospace Sciences Meeting, National Harbor, Maryland, 2014, AIAA 2014-1179, presentation.
  6. Ju, J.K. Lefkowitz, T. Wada, X. Yang, S.H. Won, W. Sun, “Plasma assisted combustion: new combustion technology and kinetic studies,” 53rd AIAA Aerospace Sciences Meeting, Kissimmee, Florida, 2015, AIAA 2015-0156, presentation.
  7. Yang, S. Nagaraja, V. Yang, W. Sun, J.K. Lefkowitz, Y. Ju, “Numerical and Experimental Investigation of Nanosecond-Pulsed Plasma Activated C2H4/O2/Ar Mixtures in a Low Temperature Flow Reactor,” 53rd AIAA Aerospace Sciences Meeting, Kissimmee, Florida, 2015, AIAA 2015-1614, presentation.
  8. Wada, J.K. Lefkowitz, Y. Ju, “Plasma Assisted MILD Combustion,” 53rd AIAA Aerospace Sciences Meeting, Kissimmee, Florida, 2015, AIAA 2015-0666, presentation.
  9. K. Lefkowitz, P. Guo, A. Rousso, Y. Ju, “Low temperature oxidation of methane in a nanosecond pulsed plasma discharge,” 53rd AIAA Aerospace Sciences Meeting, Kissimmee, Florida, 2015, AIAA 2015-0665, presentation.
  10. Yang, S. Nagaraja, W. Sun, V. Yang, J.K. Lefkowitz, Y. Ju, “Numerical and experimental study of pulsed nanosecond plasma discharges for C2H4/O2/Ar gas mixtures in a low temperature reactor,” 9th U.S. National Combustion Meeting, Cincinnati, OH, 2015, 3B01, presentation.
  11. Yang, J.K. Lefkowitz, B.E. Brumfield, Q. Chen, G. Wyscoki, Y. Ju, “Kinetics studies of O3/O2/CH3OH/Ar mixtures in a photolysis flow reactor,” 9th U.S. National Combustion Meeting, Cincinnati, OH, 2015, 1A10, presentation.
  12. K. Lefkowitz, A. Rousso, P. Guo, Y. Ju, “A kinetic study of low temperature methane oxidation in a nanosecond repetitively pulsed discharge,” 9th U.S. National Combustion Meeting, Cincinnati, OH, 2015, 3B03, presentation.
  13. C. Rousso, J.K. Lefkowitz, Y. Ju, “Measurements of low temperature oxidation of n-heptane/O2/Ar mixtures in nanosecond-pulsed plasma discharges,” 54th AIAA Aerospace Sciences Meeting, San Diego, CA, 2016, AIAA 2016-0958, presentation.
  14. K. Lefkowitz, T. Ombrello, “Study of Nanosecond Pulsed High Frequency Discharge Ignition in a Flowing Methane/Air Mixture” 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, 2017, AIAA 2017-1777, presentation.
  15. D. Stachler, J.K. Lefkowitz, T.M. Ombrello, S.D. Stouffer, J.S. Heyne, J.D. Miller, “The effect of residence time on the ignitability of ethylene and air mixtures in a toroidal jet-stirred reactor,” 10th US National Combustion Meeting, College Park, MD, 2017, 1J02, presentation.
  16. K. Lefkowitz, T. Ombrello, “Reduction of Flame Development Time Using Nanosecond-Pulsed High-Frequency Discharges in Flowing Mixtures,” 10th US National Combustion Meeting, College Park, MD, 2017, 1E07, presentation.
  17. Wermer, J.K. Lefkowitz, T. Ombrello, S.-K. Im, “Ignition and Flame Propagation Enhancement by Dual-Pulsed Laser-Induced Breakdown,” 10th US National Combustion Meeting, College Park, MD, 2017, 1E09, presentation.
  18. Ombrello, J.K. Lefkowitz, S.D. Hammack, C. Carter, K. Busby, “Scramjet Cavity Ignition Using Nanosecond-Pulsed High-Frequency Discharges,” 10th US National Combustion Meeting, College Park, MD, 2017, 3H07, presentation.
  19. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Tunnel for Ignition Research,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  20. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  21. Nath, M. Skrynychenko, J. Lefkowitz, “Drop-Test Facility for Studying Ignition Characteristics of Hypergolic Solid Fuel with Hydrogen Peroxide Oxidizer,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  22. C. Opacich, J.S. Heyne, T. Ombrello, J. Lefkowitz, R. Leiweke and K. Busby. “An Investigation on Kernel Growth Variations between Conventional Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges,” AIAA SciTech 2020 Forum, AIAA 2020-0428, 2020.
  23. Nath, I. Laso, & J. Lefkowitz, “Parametric Study of a Non-Toxic Hypergolic Hybrid Rocket Propellant Combination,” Proceedings of the European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  24. Faingold, J.K. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” Proceedings of the European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  25. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” Proceedings of the European Combustion Meeting, 14-15 April, 2021.
  26. Nath, I. Laso, & J. Lefkowitz, “Parametric Ignition Study of a Green Hypergolic Hybrid Rocket Fuel,” AIAA SciTech 2022 Forum 2022-1484, San Diego, CA, USA, 3-7 January, 2022.
  27. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” AIAA SciTech 2022 Forum 2022-2118, San Diego, CA, USA, 3-7 January, 2022.
Plenary, keynote or invited talks
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  1. “A New Approach to Ignition: The Synergistic Effects of Nanosecond-pulsed High-frequency Discharges,” 2017 AIAA Aviation Forum, Denver, CO, 2017.
  2. “Dynamics of Spark Ignition in High-speed Flows,” The 32nd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2018.
  3. “Innovations in Chemistry of Igniting Energy Materials,” 14th Energetic Materials Seminar, Tel Aviv, Israel, 2019.
  4. “Improved Ignition for Small-scale UAV Engines,” 9th Conference on UAV Propulsion Technology, Haifa, Israel, 2020.
  5. “A New Approach to Ignition: Minimum Ignition Power and Inter-pulse Coupling,” Combustion Webinar, February 27, 2021.
  6. “Electrifying Combustion: How Plasma Technology Can Accelerate the Transition to Renewable Energy,” American Israel Friendship League Webinar, August 18, 2021.
  7. “Plasma-Assisted Combustion Panel” ASME Turbo Expo 2022, Rotterdam, Netherlands, 2022.
Contributed Talks and Posters
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  1. K. Lefkowitz, Y. Ju, C. Stevens, T. Ombrello, F. Schauer, J. Hoke, “The Effects of Repetitively Pulsed Nanosecond Discharges on Ignition Time in a Pulsed Detonation Engine,” 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, San Jose, California, 2013, AIAA 2013-3719, presentation.
  2. K. Lefkowitz, M. Uddi, B.C. Windom, Y. Ju, “In situ Mid-infrared Absorption Measurements in a Nanosecond Pulsed Plasma Discharge,” The 2nd International Education Forum on Environment and Energy Science, Huntington Beach, California, 2013, presentation.
  3. Brumfield, X. Yang, J. Lefkowitz, Y. Ju, G. Wysocki, “Towards Simultaneous Measurement of OH and HO2 in Combustion Using Faraday Rotation Spectroscopy,” CLEO:2014, San Jose, California, 2014, SF21.4, presentation.
  4. Brumfield, N. Kurimoto, X. Yang, T. Wada, P. Diévart, J. Lefkowitz, G. Wysocki, Y. Ju, “Kinetic Studies of Low and Intermediate Temperature Oxidation of Dimethyl Ether,” 248th ACS National Meeting & Exposition, San Fransisco, California, 2014, presentation.
  5. K. Lefkowitz, “Kinetic study of low temperature methane oxidation in a nanosecond repetitively pulsed dielectric barrier discharge,” 22nd International Symposium on Plasma Chemistry, Antwerp, Belguim, 2015, O-4-3, presentation.
  6. Rousso, J.K. Lefkowitz, S. Yang, W. Sun, Y. Ju, “n-Heptane low temperature oxidation kinetics in nanosecond-pulsed plasma discharges,” 2016 Eastern States Section of the Combustion Institute Spring Meeting, Princeton, NJ, 2016, 2A15, presentation.
  7. K. Lefkowitz, R. Brayfield, J. Miles, S. Adams, T. Ombrello, “The Effect of Inter-pulse Coupling on Plasma Temperature in Nanosecond-pulsed High-frequency Discharges,” The 20th Israeli Plasma Science and Applications Conference, Tel Aviv, Israel, 2018, presentation.
  8. K. Lefkowitz, “New Insights for Ignition in Gas Turbine Engines,” The 17th Israeli Symposium on Jet Engines and Gas Turbines, Haifa, Israel, 2018, presentation.
  9. Faingold and J.K. Lefkowitz, “Ignition characteristics of plasma reformed n-heptane in a homogeneous charge compression ignition engine,” Proceedings of the European Combustion Meeting, Lisbon, Portugal, 2019, poster.
  10. K. Lefkowitz, S. Hammack, C. Carter, T. Ombrello, “Plasma-Assisted Super-Equilibrium Radical Generation and its Effect on Ignition,” Proceedings of the European Combustion Meeting, Lisbon, Portugal, 2019, poster.
  11. Faingold and J.K. Lefkowitz “Plasma assisted ignition control: modifying ignition characteristics of n-heptane in a plasma discharge”, 37th Annual Conference of the Israel Vacuum Society, Haifa, 2019, presentation.
  12. Faingold and J.K Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma”, The 8th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, 2019, poster.
  13. Faingold and J.K Lefkowitz, “Kinetic modeling of ammonia chemistry in a non-thermal plasma”, The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, 2019, poster.
  14. Nath, M. Skrynychenko, J. Lefkowitz, “Drop Test Experiment to Characterize Solid Fuel for Hypergolic Hybrid Rockets,” The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2019, poster.
  15. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2019, poster.
  16. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel, 2019, poster.
  17. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 18th Israeli Symposium on Jet Engines & Gas Turbines. Technion, Haifa, Israel, 2019, poster.
  18. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Tunnel for Ignition Research,” The 18th Israeli Symposium on Jet Engines & Gas Turbines, Haifa, Israel, 2019. presentation.
  19. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 18th Israeli Symposium on Jet Engines & Gas Turbines, Haifa, Israel, 2019, poster.
  20. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, Israel, 2020, poster.
  21. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, Israel, 2020, poster.
  22. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, 2020, poster.
  23. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” 38th Annual Conference of the Israel Vacuum Society, online conference, 2021, presentation.
  24. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” 66 Annual Conference of the Israel Physical Society, online conference, 2020, presentation.
  25. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond Pulsed High Frequency Discharge Ignition,” 34th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv & Haifa, Israel, 2020, presentation.
  26. Nath, I. Laso, J. Lefkowitz, “Drop-Test Experiment for Studying Ignition Characteristics of Hypergolic Solid Fuel with Hydrogen Peroxide Oxidizer,” 34th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv & Haifa, Israel, 2020, presentation.
  27. Laso, S. Shen, N. Rozin, J. Van der Lee, & J.K. Lefkowitz, “An Innovative Tunnel for Ignition Research on High-Temperature and High-Velocity Flows,” 38th International Symposium on Combustion, Adelaide, Australia (and online), 2020, poster.
  28. Faingold, J. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” 39th Annual IVS-IPSTA Conference, online conference, November 17, 2021, poster.
  29. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “On Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” 39th Annual IVS-IPSTA Conference, online conference, November 17, 2021, poster.
  30. Hamo, I. Kronhaus, J. Lefkowitz, “Optical Emission Spectroscopy Measurements of the Narrow Channel Hall Thruster”, 39th Annual IVS-IPSTA Conference, November 17, 2021, presentation.
  31. Nath, I. Laso, & J. Lefkowitz, “Parametric Ignition Delay Study of a Non-Toxic Hypergolic Hybrid Rocket Propellant.” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, December 2, 2021, poster.
  32. Faingold, J. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” 35th Annual Symposium of the Israeli Section of The Combustion Institute, Tel Aviv, December 2, 2021, poster.
  33. J. Van der Lee, D. Michaels, J. Lefkowitz, “Combustion Characteristics of Liquid Hydrocarbon Fueled Scramjets,” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel December 2, 2021, poster.
  34. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “Pulse Energy Effects in Nanosecond-Pulsed High-Frequency Discharge Ignition,” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel December 2, 2021, presentation.
  35. Shen, J.K. Lefkowitz, “Nanosecond-Pulsed High-Frequency Plasma Ignition in Flowing Reactive Mixtures,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  36. Druker, J.K. Lefkowitz, “A high-fidelity  numerical  solver  and  method  for  1D  plasma  discharges,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  37. Faingold, J.K. Lefkowitz, “Well-stirred reactor with homogeneous plasma for development of chemical kinetic model of plasma, ammonia and air,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  38. Faingold, J.K. Lefkowitz, “Well-stirred reactor with homogeneous plasma for development of chemical kinetic model of plasma, ammonia and air,” 1st Symposium on Ammonia Energy, Cardiff, UK, September 1-2, 2022, presentation.
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