Conferences Before 2010

  1. Theodosiou, C., Iakovidis, A. and Natsiavas, S., “Dynamics of Complex Mechanical Models with Unilateral Constraints,” Stability, Identification and Control in Nonlinear Structures, Rome, Italy, 2009.
  2. Giagopoulos, D., Theodosiou, C., Iakovidis, A. and Natsiavas, S., “Dynamics of Mechanical Models Interconnected with Gear-Pairs,” 3rd International Conference on Power Transmission, Kalithea, Chalkidiki, Greece, 2009.
  3. Valsamos, G., Theodosiou, C. and Natsiavas, S., “Periodic Steady State Response and Fatigue Analysis of a Nonlinear City Bus Model,” 22nd Biennial ASME Conference on Mechanical Vibration and Noise, San Diego, California, 2009.
  4. Theodosiou, C., Iakovidis, A. and Natsiavas, S., “Dynamics of Large Scale Finite Element Models with Multiple Unilateral Constraints,” 22nd Biennial ASME Conference on Mechanical Vibration and Noise, San Diego, California, 2009.
  5. Theodosiou, C., Sikelis, K. and Natsiavas, S., “Periodic Steady State Response of Complex Finite Element Models using Multi-Level Substructuring,” 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Rhodes, Greece, 2009.
  6. Ipsakis D., S. Voutetakis, P. Seferlis, and S. Papadopoulou, “Dynamic Modeling and Control Issues on a Methanol Reforming Unit for Hydrogen Production and Use in a PEM Fuel Cell”, Proceedings of the IFAC Symposium on Advanced Control of Chemical Processes, 856-861, 2009.
  7. Ziogou C., S. Papadopoulou, P. Seferlis, and S. Voutetakis “An efficient multi-objective model predictive framework of a PEM fuel cell”, Proceedings of the IFAC Symposium on Advanced Control of Chemical Processes, 904-909, 2009.
  8. Ipsakis D., S. Voutetakis, P. Seferlis, S. Papadopoulou, and M. Stoukidis, “Modeling and Analysis of an Integrated Power System Based on Methanol Autothermal Reforming”, Proceedings of the 17th Mediterranean Conference on Control and Automation, 1421-1426, 2009.
  9. Ziogou C., D. Ipsakis, F. Stergiopoulos, S. Voutetakis, P. Seferlis, S. Papadopoulou, and C. Elmasides, “Automation and Operation Strategies in a Stand-Alone Power System that uses Solar and Wind Energy in Conjunction with Hydrogen Long-Term Storage”, IFAC Symposium on Power Plants and Power Systems Control, 2009.
  10. Papadopoulos A.I., and P. Seferlis, “Environmentally benign and cost optimal phosphoric acid production through a systematic process design framework”, Proceedings of the 2nd International Conference on Environmental Management, Engineering, Planning and Economics (CEMEPE) & SECOTOX Conference, 2009.
  11. Papadopoulos A.I., and P. Seferlis, “Systematic Process Integration Technologies For Cost Optimal And Environmentally Benign Phosphoric Acid Production”, Proceedings of COVAPHOS III (ISBN: 9954-8734-2-7), 5, 68-74, 2009.
  12. Giagopoulos, D., Ntotsios, E., Papadimitriou, C. and Natsiavas, S., “Finite Element Model Updating of an Experimental Vehicle using Measured Modal Characteristics,” 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Rhodes, Greece, 2009.
  13. Natsiavas, S., Theodosiou, C., Valsamos, G. and Sikelis, K., “Nonlinear Frequency Response Analysis of Large Scale Vehicle Models,” International Conference on Simulation Based Engineering and Sciences, Venice, Italy, 2008.
  14. Theodosiou, C., Georgiou, G. and Natsiavas, S., “Periodic Steady State Response of a Large Scale City Bus Model with Nonlinear Characteristics,” 6th European Nonlinear Oscillations Conference, Saint Petersburg, Russia, 2008.
  15. Theodosiou, C., Iakovidis, A. and Natsiavas, S., “Dynamics of Finite Element Mechanical Models with Unilateral Contacts and Friction,” 6th European Nonlinear Oscillations Conference, Saint Petersburg, Russia, 2008.
  16. Valsamos, G., Georgiou, G. and Natsiavas, S., “Dynamic Response and Fatigue Analysis of a Large Scale City Bus Model,” 6th GRACM International Congress on Computational Mechanics, Thessaloniki, Greece, 2008.
  17. Theodosiou, C., Iakovidis, A. and Natsiavas, S., “Dynamics of Complex Mechanical Models with Unilateral Constraints,” 6th GRACM International Congress on Computational Mechanics, Thessaloniki, Greece, 2008.
  18. Theodosiou, C., Valsamos, G. and Natsiavas, S., “Transient and Periodic Steady State Response of Complex Finite Element Structural Models,” 4th International Conference on Advanced Computational Methods in Engineering, Liege, Belgium, 2008.
  19. Ipsakis D., S. Voutetakis, S. Papadopoulou, and P. Seferlis, “Process Design and Disturbance Rejection Evaluation on Fuel Processing Systems Incorporating Fuel Cells”, Proceedings of the  11th European Fuel Cell Conference & Exhibition, 2008.
  20. Ouzounidou M., Ipsakis D., Voutetakis S., Papadopoulou S., and P. Seferlis, “Experimental Studies and Optimal Design for a Small-Scale Autonomous Power System Based on Methanol Reforming and a PEM Fuel Cell”, paper 578s, Proceedings of the American Institute of Chemical Engineers Annual Meeting, 2008.
  21. Ipsakis D., F. Stergiopoulos, C. Ziogou, S. Voutetakis, P. Seferlis, S. Papadopoulou, and C. Elmasides, “Analysis of a stand-alone power system based on solar and wind energy with hydrogen long-term storage: Operational experience and control studies”, 6th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion, MedPower ‘08, 2008.
  22. Seferlis P., D. Vlachos, E. Iakovou, and A. Xanthopoulos, “An Optimal Control Theory-Based Framework for Supply Chain Resilience”, Proceedings of the 3rd International Conference on Manufacturing Engineering, ICMEN, 811-820, 2008.
  23. Ipsakis D., S. Voutetakis, P. Seferlis, F. Stergiopoulos, S. Papadopoulou, C. Elmasides, S. Papadopoulou, and C. Keivanidis. “Design and Operation Optimization for a Stand-Alone Power System Using Renewable Energy Sources and Hydrogen Storage”, EMINENT-2 Workshop Proceedings, 47-56, 2008.
  24. Georgiou, G., Badarlis, A. and Natsiavas, S., “Ride Dynamics of a Flexible Multibody Model of an Urban Bus,” 21th Biennial ASME Conference on Mechanical Vibration and Noise, Las Vegas, Nevada, 2007.
  25. Stavrakis, I., Theodosiou, C. and Natsiavas, S., “Periodic Steady State Response of Complex Vehicle Models using Multi-Level Substructuring,” 21th Biennial ASME Conference on Mechanical Vibration and Noise, Las Vegas, Nevada, 2007.
  26. Metallidis, P., Stavrakis, I. and Natsiavas, S., “Parametric Identification and Health Monitoring of Large Scale Strongly Nonlinear Vehicle Models,” 21th Biennial ASME Conference on Mechanical Vibration and Noise, Las Vegas, Nevada, 2007.
  27. Stavrakis, I., Metallidis, P. and Natsiavas, S., “Parametric Identification and Damage Detection in Large Scale Vehicle Models with Strongly Nonlinear Characteristics,” 8th International Congress on Mechanics, Patra, Greece, 2007.
  28. Stavrakis, I., Theodosiou, C., Metallidis, P. and Natsiavas, S., “Response of Large Order Nonlinear Mechanical Systems using Substructuring Methods,” ECCOMAS Thematic Conference – Multibody Dynamics, Milano, Italy, 2007.
  29. Georgiou, G. and Natsiavas, S., “Multi-Objective Optimization of Large Scale Vehicle Models Subjected to Road Excitation,” ECCOMAS Thematic Conference – Computational Methods in Structural Dynamics and Earthquake Engineering, Rethymno, Crete, 2007.
  30. Bollas G.M., I. Anastasiou, S.A. Papadopoulou, S.S. Voutetakis, and P. Seferlis, “Feed Conversion targeting in an FCC pilot plant using a non-linear MPC Strategy”, Proceedings of the American Control Conference, 632-638, 2007.
  31. Seferlis P., J. Klemes, I. Bulatov, P. Kapustenko, L. Puigjaner, A. Boharski, R. Suleymanov, and E. Koltsova, “Information system for phosphorus-containing compounds production”, Proceedings of the European Congress of Chemical Engineers, ΕCCE-6, 2007.
  32. Natsiavas, S., Papalukopoulos, C., Theodosiou, C. and Georgiou G., “Steady State Response of Large Scale Mechanical Systems using Multi-Level Substructuring,” Sixth European Solid Mechanics Conference, Budapest, Hungary, 2006.
  33. Theodosiou, C. and Natsiavas, S., “Dynamics of Large Scale Mechanical Systems with Unilateral Constraints,” Sixth European Solid Mechanics Conference, Budapest, Hungary, 2006.
  34. Theodosiou C. and Natsiavas, S., “Direct Integration of Large Scale Mechanical Models Involving Unilateral Contacts and Friction,” 2nd International Conference on Nonsmooth/Nonconvex Mechanics, Thessaloniki, Greece, 2006.
  35. Papalukopoulos, C., Theodosiou C. and Natsiavas, S., “Νonlinear Dynamics of Vehicle Models Coupled with Biodynamic Passenger Models,” 2nd International Conference on Nonlinear Normal Modes in Vibrating Systems, Samos, Greece, 2006.
  36. Bollas G.M., S.A. Papadopoulou, A.A. Lappas, S.S. Voutetakis, P. Seferlis, and I.A. Vasalos, “Application of a model predictive control strategy on a fluid catalytic cracking pilot plant”, paper 10B03, Proceedings of the Annual American Institute of Chemical Engineers Meeting, 2006.
  37. Seferlis P., J. Klemeš, I. Bulatov, E. Koltsova, and P. Kapustenko, “Development of Sustainable Processes for Waste Utilisation in Phosphoric Acid Industry”, Proceedings of the 9th Conference on Process Integration, Modelling, and Optimisation for Energy Saving and Pollution Reduction, PRES’06, 2006.
  38. Bollas G.M., S. Avramidis, S.A. Papadopoulou, A.A. Lappas, S.S. Voutetakis, and P. Seferlis, “Model Predictive Control of a Fluid Catalytic Cracking Pilot Plant”, Proceedings of the 9th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES’06, 2006.
  39. Seferlis P. and L. Pechlivanos, “A Model-Predictive Control Strategy For Optimal Inventory And Pricing Policies In Supply Chain Networks”, Proceedings EMCC-4, 348-351, 2006.
  40. Metallidis, P., Stavrakis, I., Verros, G. and Natsiavas, S., “Long Term Ride Dynamics of Large Vehicle Models with Nonlinear Suspensions,” 20th Biennial ASME Conference on Mechanical Vibration and Noise,  Long Beach, California, 2005.
  41. Verros, G., Georgiou, G. and Natsiavas, S., “Multi-Objective Optimization of Quarter Car Models with Linear and Piecewise Linear Suspension Dampers,” 20th Biennial ASME Conference on Mechanical Vibration and Noise,  Long Beach, California, 2005.
  42. Papadopoulou S., Kokolaki G., Anastasiou I., Voutetakis S., and Seferlis P., “Modeling and parameter estimation of a catalyst deactivation fluidized bed reactor”, Proceedings of the 5th International Conference on Technology and Automation, 216-221, 2005.
  43. Giagopoulos, D., Salpistis, C. and Natsiavas, S., “On Some Peculiarities Encountered in the Identification of Gear-Pair Systems,” 20th Biennial ASME Conference on Mechanical Vibration and Noise,  Long Beach, California, 2005.
  44. Papalukopoulos, C., Giagopoulos, D., Metallidis, P. and Natsiavas, S., “Comparison of Substructuring Methodologies in Large Scale Mechanical Models,” EURODYN 2005 Conference, Paris, France, 2005.
  45. Papalukopoulos, C., Metallidis, P. and Natsiavas, S., “Dynamics of Large Scale Mechanical Models with Substructuring Methodologies,” 5th European Nonlinear Oscillations Conference, Eindhoven, Netherlands, 2005.
  46. Metallidis, P., Stavrakis, I., Theodosiou, C. and Natsiavas, S., “Dynamics and Identification of Vehicle Models with Piecewise Linear Suspensions,” 5th European Nonlinear Oscillations Conference, Eindhoven, Netherlands, 2005.
  47. Verros, G., Georgiou, G. and Natsiavas, S., “Multi-Objective Optimization of Vehicle Models with Passive and Semi-Active Suspensions,” 5th European Nonlinear Oscillations Conference, Eindhoven, Netherlands, 2005.
  48. Papalukopoulos, C., Giagopoulos, D. and Natsiavas, S., “Dynamics of Large Scale Vehicle Models Coupled with Driver Biodynamic Models,” 5th GRACM International Congress on Computational Mechanics, Limassol, Cyprus, 2005.
  49. Metallidis, P., Stavrakis, I., Theodosiou, C. and Natsiavas, S., “Dynamics and Identification of Vehicle Models with Strongly Nonlinear Characteristcs,” ECCOMAS Thematic Conference – Multibody Dynamics, Madrid, Spain, 2005.
  50. Papalukopoulos, C., Giagopoulos, D., Stavrakis, I., Theodosiou, C. and Natsiavas, S., “Application of Component Mode Synthesis in Complex Mechanical Systems,” 1st Symposium of Greek Society of Mechanical and Electrical Engineers, Athens, Greece, 2005.
  51. Verros, G., Metallidis, P., Georgiou, G., Sikelis, Κ. and Natsiavas, S., “Application of Multi-Objective Optimization in Vehicle Dynamics,” 1st Symposium of Greek Society of Mechanical and Electrical Engineers, Athens, Greece, 2005.
  52. Verros, G., Georgiou, G. and Natsiavas, S., “Dynamics and Optimization of Quarter Car Models with Passive or Semi-Active Suspension,” 9th International Conference on Energy and Environment, Cairo, Egypt, 2005.
  53. Seferlis P., and L. Pechlivanos, “Integrated Inventory and Pricing Policies for Supply Chain Networks”, Proceedings of the Annual American Institute of Chemical Engineers Meeting, 7599-7610, 2004.
  54. Dalaouti N., and P. Seferlis, “A Unified Modelling Approach for the Design of Complex Separation Processes”, Proceedings of the Annual American Institute of Chemical Engineers Meeting, 5575-5589, 2004.
  55. Verros, G., Kazantzis, M., Natsiavas, S. and Papadimitriou, C., “Multi-Objective Optimization of Quarter Car Models with Passive and Semi-Active Suspensions,” 3rd International Symposium on Multi-body Dynamics, Loughborough, England, 2004.
  56. Goudas, I., Metallidis, P., Stavrakis, I. and Natsiavas, S., “Periodic Response and Stability of Reciprocating Engines,” 3rd International Symposium on Multi-body Dynamics, Loughborough, England, 2004.
  57. Giagopoulos, D., Salpistis, C. and Natsiavas, S., “Parametric Identification and Fault Detection in Geared Rotordynamic Systems,” International Conference on Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, Paris, France, 2004.
  58. Metallidis, P., Verros, G., Natsiavas, S. and Papadimitriou, C., “Parametric Identification and Fault Detection in Vehicle Suspensions,” 2nd European Workshop on Structural Health Monitoring, Munich, Germany, 2004.
  59. Goudas, I., Stavrakis, I. and Natsiavas, S., “Dynamics of Reciprocating Engines with Flexible Supports and Non-Ideal Forcing,” 3rd National Congress on Computational Mechanics, Chania, Greece, 2004.
  60. Verros, G., Natsiavas, S. and Papadimitriou, C., “Optimization of Quarter Car Models with Passive and Semi-Active Suspensions under Random Road Excitation,” 3rd National Congress on Computational Mechanics, Chania, Greece, 2004.
  61. Papalukopoulos, C., Verros, G., Giagopoulos, D. and Natsiavas, S., “A Critical Comparison of Nastran Substructuring Methods in Large Scale Models,” 2004 Virtual Product Development Conference, Munchen, Germany, 2004.
  62. Giagopoulos, D., Papalukopoulos, C. and Natsiavas, S., “Comparison of Component Mode Synthesis and FRF-based Substructuring in Large Scale Models,” International Conference on Noise and Vibration Engineering, K.U. Leuven, Belgium, 2004.
  63. Goudas, Ι., Stavrakis, I. and Natsiavas, S., “Nonlinear Dynamics of Single-Cylinder Flexible Reciprocating Engines,” 19th Biennial ASME Conference on Mechanical Vibration and Noise, Chicago, Illinois, 2003.
  64. Theodosiou, C., Aichouch, P., Natsiavas, S. and Papadimitriou, C., “Reliability-Based Optimal Design of Fluid Filled Tanks under Seismic Excitation,” 19th Biennial ASME Conference on Mechanical Vibration and Noise, Chicago, Illinois, 2003.
  65. Giagopoulos, D., Salpistis, C. and Natsiavas, S., “Dynamics and Parametric Identification of Geared Rotordynamic Systems,” IUTAM Symposium on Chaotic Dynamics and Control of Systems and Processes in Mechanics, Rome, Italy, 2003.
  66. Metallidis, P., Verros, G., Natsiavas, S. and Papadimitriou, C., “Identification and Fault Detection of Systems with Piecewise Linear Characteristics,” First European Workshop on Structural Health Monitoring, Paris, France, 2002.
  67. Theodosiou, C., Verros, G. and Natsiavas, S., “Dynamical Systems with Friction and Motion Limiting Constraints,” International Conference on Nonsmooth / Nonconvex Mechanics, Thessaloniki, Greece, 2002.
  68. Papadimitriou, C., Theodosiou, C., Aichouch, P. and Natsiavas, S., “Reliability Analysis of Fluid-Filled Tanks Subjected to Earthquake Excitation,” Fourth GRACM Congress on Computational Mechanics, Patra, Greece, 2002.
  69. Theodosiou, C., Aichouch, P., Natsiavas S. and Papadimitriou, C., “Optimal Design of Unanchored Fluid-Filled Tanks to Seismic Excitation,” Fourth International Conference on Computational Stochastic Mechanics, Corfu, Greece, 2002.
  70. Verros, G. and Natsiavas, S., “Dynamics of Semi-Actively Controlled Vehicles Involving Wheel Hop,” 18th Biennial ASME Conference on Mechanical Vibration and Noise, Pittsburgh, Pennsylvania, 2001.
  71. Metallidis, P., Verros, G., Natsiavas, S. and Papadimitriou, C., “Parametric Identification and Fault Detection in Vehicle Models with Nonlinear Suspensions,” 18th Biennial ASME Conference on Mechanical Vibration and Noise, Pittsburgh, Pennsylvania, 2001.
  72. Seferlis, P., and C. Kiparissides, “Optimizing Control of Molecular Weight Properties for Batch Free-Radical Polymerization Reactors”, Proceedings of the IFAC Conference on Dynamics and Control of Process Systems, DYCOPS-6, 251-256, 2001.
  73. Theodossiades, S. and Natsiavas, S., “Gear Rotordynamic Systems on Hydrodynamic Bearings,” 18th Biennial ASME Conference on Mechanical Vibration and Noise, Pittsburgh, Pennsylvania, 2001.
  74. Seferlis P., and J. Grievink, “Plant Design based on Economic and Static Controllability Criteria”, Foundations of Computer Aided Process Design, AIChE Symp. Series, 96, 346-350, 2000.
  75. Metallidis, P., Verros, G., Natsiavas, S. and Papadimitriou, C., “Vehicle Dynamics and Fault Detection in Vehicle Suspensions,” 8th International Conference on Structural Safety and Reliability, Newport Beach, California, 2001.
  76. Verros, G., Goudas, H., Natsiavas, S. and Hache, M., “Dynamics of Large Scale Vehicle Models,” 2000 International ADAMS Conference, Orlando, Florida, 2000.
  77. Metallidis, P. and Natsiavas, S., “Dynamics of a Continuous System with Clearance and Motion Limiting Stops,” 17th Biennial ASME Conference on Mechanical Vibration and Noise, Las Vegas, Nevada, 1999.
  78. Verros, G., Natsiavas, S. and Stepan, G., “Control of a Quarter-Car Model with Variable Damping,” 17th Biennial ASME Conference on Mechanical Vibration and Noise, Las Vegas, Nevada, 1999.
  79. Metallidis, P. and Natsiavas, S., “Effect of Connecting Rod Flexibility, Clearance and Motion Limiting Stops on Machine Vibrations,” 3rd National Congress on Computational Mechanics, Volos, Greece, 1999.
  80. Verros, G. and Natsiavas, S., “Dynamics of Vehicles with Dual-Rate Shock Absorbers,” 3rd National Congress on Computational Mechanics, Volos, Greece, 1999.
  81. Theodossiades, S. and Natsiavas, S., “Dynamics of Gear-Pair Systems with Backlash,” Euromech Colloquium on Dynamics of Vibro-Impact Systems, Loughborough, UK, 1998.
  82. Theodossiades, S., Natsiavas, S. and Goudas, I., “Dynamics of Systems with Piecewise Linear Characteristics and Periodic Coefficients,” Fifth National Congress on Mechanics, Ioannina, Greece, 1998.
  83. Natsiavas, S. and Verros, G., “Dynamics of Piecewise Linear Oscillators with Viscous and Constant Damping,” IUTAM Symposium on Unilateral Multibody Dynamics, Munich, Germany, 1998.
  84. Seferlis P., and J. Grievink, “Optimal Design of Reactive Distillation Units under Uncertainty using Collocation Models”, Proceedings of the American Institute of Chemical Engineers Annual Meeting, 1998.
  85. Natsiavas, S. and Theodossiades, S., “Piecewise Linear Systems with Time Varying Coefficients,” ASME Design Engineering Technical Conference, Sacramento, California, USA, 1997.
  86. Natsiavas, S., Mitsi, S. and Tsiafis, I., “Prediction and Control of Dynamics for a Class of Oscillators with Nonlinear Restoring Force,” ASME International Mechanical Engineering Congress and Exposition, Atlanta, Georgia, USA, 1996.
  87. Natsiavas, S. and Metallidis, P., “Dynamics of Self-Excited Oscillators with 1:3 Internal Resonance under Primary External Resonance,” 2nd European Nonlinear Oscillations Conference, Prague, Czech Republic, 1996.
  88. Natsiavas, S., Bouzakis, K.D. and Aichouh, P., “Dynamics of a Simplified Model in Metal Cutting with Nonlinear Friction,” Balkantrib 96-2nd International Conference on Tribology, Thessaloniki, Greece, 1996.
  89. Natsiavas, S., Bouzakis, K.D. and Aichouh, P., “Free Vibration of Symmetric Self-Excited Oscillators with one-to-three Internal Resonance,” 3rd Biennial ASME Conference on Engineering Systems Design and Analysis, Montpellier, France, 1996.
  90. Natsiavas, S. and Tratskas, P., “Prediction and Elimination of Subharmonic Resonances in Mechanical Systems with Nonlinear Foundations,” 15th ASME Biennial Conference on Mechanical Vibration and Noise, Boston, USA, 1995.
  91. Natsiavas, S., “Parametric Excitation and Instability of Thin Rings Rotating with Variable Spin Speed,” ASME Winter Annual Meeting, (Nonlinear and Stochastic Dynamics), Chicago, Illinois, 1994.
  92. Seferlis P., and A.N. Hrymak, “Sensitivity Analysis Methods in Process Optimization”, Proceedings of the American Institute of Chemical Engineers Annual Meeting, 1994.
  93. Chen, C.S., Natsiavas, S. and Nelson, H.D., “Stability Analysis and Complex Dynamics of a Gear-Pair System Supported by a Squeeze Film Damper,” 2nd Biennial European Joint Conference on Engineering Systems Design and Analysis, London, England, 1994.
  94. Chen, C.S., Natsiavas, S. and Nelson, H.D., “Dynamics of a Planetary Gear-Rotor-Bearing System Modeled with Finite Elements,” 5th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Maui, Hawaii, 1994.
  95. Begley, C.J. and Natsiavas, S., “Regular and Complex Motions of Unanchored Liquid Containers under Harmonic Base Excitation,” 14th International  Modal Analysis Conference, Honolulu, Hawaii, 1994.
  96. Natsiavas, S. and Beck, J.L., “Almost Classically Damped Linear Discrete Systems,” 14th International  Modal Analysis Conference, Honolulu, Hawaii, 1994.
  97. Chen, C.S., Nelson, H.D. and Natsiavas, S., “Modeling and Analysis of Geared Rotordynamic Systems,” 4th International Conference on Rotor Dynamics, Chicago, Illinois, 1994.
  98. Chen, C.S., Natsiavas, S. and Nelson, H.D., “Coupled Lateral-Torsional Vibration of a Gear-Pair System Supported by a Squeeze Film Damper,” 14th ASME Biennial Conference on Mechanical Vibration and Noise, Albuquerque, New Mexico, 1993.
  99. Natsiavas, S., “Local Bifurcations and Modal Interactions of Two-Degree-of-Freedom Self-Excited Oscillators,” IUTAM Symposium on Nonlinearity and Chaos in Engineering Dynamics, London, England, 1993.
  100. Begley, C.J. and Natsiavas, S., “Response Spectra of Unanchored Liquid Storage Tanks,” ASME Pressure Vessels and Piping Conference, Denver, Colorado, 1993.
  101. Natsiavas, S., “Regular and Chaotic Response of Vibration Absorbers with Elastic Stops,” ASME Winter Annual Meeting, (Nonlinear Vibration Symposium), Anaheim, California, 1992.
  102. Klenke, S.E. and Natsiavas, S., “Dynamics of Periodically Excited Nonlinear Mechanical Systems,” 10th International Modal Analysis Conference, San Diego, California, 1992.
  103. Seferlis P., and A.N. Hrymak, “Error-based Adaptive Mesh Selection for Collocation Models of Multistage Separation Processes”, Proceedings of the American Institute of Chemical Engineers Annual Meeting, 1992.
  104. Seferlis P., and A.N. Hrymak, “Reduced Order Models for Distillation Optimization”, Proceedings of the American Institute of Chemical Engineers Annual Meeting, 1991.
  105. Natsiavas, S. and Gonzalez, H., “Response of Harmonically Excited Piecewise Linear Asymmetric Oscillators,” CSME Mechanical Engineering Forum, Toronto, Canada, 1990.
  106. Yi, W. and Natsiavas, S., “Seismic Response of Unanchored Fluid-Filled Tanks using Finite Elements,” ASME Pressure Vessels and Piping Conference, Nashville, Tennessee, 1990.
  107. Natsiavas, S., “Steady State Vibration of Oscillators with Motion Limiting Constraints,” 8th International Modal Analysis Conference, Orlando, Florida, 1990.
  108. Natsiavas, S. and Nelson, H.D., “Elimination of Rigid Body Modes from Asymmetric Dynamical Systems,” 8th International Modal Analysis Conference, Orlando, Florida, 1990.
  109. Natsiavas, S., Babcock, C.D. and Knauss, W.G., “Postbuckling Delamination of a Stiffened Composite Panel using Finite Element Methods,” ASME Energy Technology Conference and Exhibition, New Orleans, Louisiana, 1990.
  110. Natsiavas, S., “Simplified Models for the Dynamic Response of Tall Unanchored Liquid Containers,” 1989 ASME PVP Conference, Honolulu, Hawaii, 1989.
  111. Natsiavas, S., “Analysis for the Seismic Response of Liquid Containers,” Structures Congress, San Francisco, California, 1989.
  112. Natsiavas, S. and Babcock, C.D., “Buckling at the Top of a Fluid-Filled Tank During Base Excitation,” 5th National Congress of ASME on PVP Technology, San Diego, California, 1987.