Faculty Directory

Hahn, Jin-Oh

Hahn, Jin-Oh

Associate Professor
Fellow, Robert E. Fischell Institute for Biomedical Devices
Affiliate Faculty, Applied Mathematics & Statistics, and Scientific Computation Program
Mechanical Engineering
2104C Glenn L. Martin Hall, Building 088
Website(s):

EDUCATION

  • Ph.D., Massachusetts Institute of Technology, 2008
  • M.S./B.S., Seoul National University, 1999/1997

 

HONORS AND AWARDS

  • Best Bio-Systems and Healthcare Paper Award, ASME DSCD Bio-Systems and Healthcare TC, 2020
  • IEEE Engineering in Medicine and Biology Society Most Impactful Paper Award (3rd Place), IEEE Engineering in Medicine and Biology Society, 2019
  • Outstanding Gemstone Mentor Award, University of Maryland Gemstone Honors Program, 2019
  • Faculty Early Career Development (CAREER) Award, US National Science Foundation, 2018
  • Best Bio-Systems and Healthcare Paper Award, ASME DSCD Bio-Systems and Healthcare TC, 2017
  • Young Investigator Program Award, US Office of Naval Research, 2014 
  • Young Investigator Grant Award, Korean-American Scientists and Engineers Association, 2013
  • Gold Prize, Samsung Human-Tech Thesis Award, 2008

 

PROFESSIONAL MEMBERSHIPS

  • Fellow, ASME 
  • Senior Member, IEEE
  • Professional Member, American Heart Association
  • Member, KSEA
  • ASME Dynamic Systems and Control Division, Bio-Systems and Healthcare Technical Committee: Past Chair (2018-2019), Chair (2017-2018), Vice chair (2016-2017), Secretary (2015-2016), Publicity Chair (2013-2015)
  • IEEE Engineering in Medicine and Biology Society, Technical Committee on Cardiopulmonary Systems: Member
  • IEEE Control Systems Society, Technical Committee on Healthcare and Medical Systems: Member
  • Institute of Control, Robotics and Systems (ICROS); Member, International Cooperation Committee (2014-2016)

 

NOTABLES

  • [06/2021] Ali Tivay received an INTERN Supplememtal Funding from the National Science Foundation (NSF).
  • [05/2021] Dr. Hahn received a Young Investigator Fellowship from Robert E. Fischell Institute at University of Maryland [Co-PIs: Dr. Joseph Friedberg, Dr. Hosam Fathy, & Dr. Miao Yu].
  • [04/2021] Dr. Hahn gave an invited talk at Villanova University.
  • [04/2021] Dr. Hahn was elected a Fellow of ASME.
  • [12/2020] Ali Tivay was awarded a Graduate School’s Outstanding Research Assistant Award from University of Maryland.
  • [10/2020] Dr. Hahn gave an invited talk at IEEE EMBS Baltimore Chapter Technical Meeting.
  • [10/2020] The article presented at the '2020 American Control Conference “Virtual Patient Generation using Physiological Models through a Compressed Latent Parametrization” was selected for the 2020 Best Bio-Systems and Healthcare Paper Award from Bio-Systems and Healthcare Technical Committee, ASME Dynamic Systems and Control Division.
  • [08/2020] Dr. Hahn gave an invited talk at Seoul National University.
  • [06/2020] Dr. Hahn received a CMMI EAGER Grant related to COVID-19 from the National Science Foundation (NSF) [Lead: Dr. Hosam Fathy & Dr. Joseph Friedberg].
  • [05/2020] Dr. Hahn gave an invited talk at Uniformed Services University of the Health Sciences.
  • [04/2020] Dr. Hahn served as Technical Program Committee Member at the International Conference on Cyber-Physical Systems (ICCPS; Sydney, Austrailia).
  • [04/2020] Azin Mousavi was awarded an Ann G. Wylie Dissertation Fellowship from University of Maryland.
  • [02/2020] Dr. Hahn's work on “Novel Devices to Unobtrusively Determine Cardiovascular Function” was nominated as a Finalist for 2019 University of Maryland Invention of the Year Awards.
  • [12/2019] Ali Tivay was selected as a Future Faculty Fellow in the A.J. Clark School of Engineering at University of Maryland.
  • [12/2019] Azin Mousavi was awarded a Graduate School’s Outstanding Research Assistant Award from University of Maryland.
  • [12/2019] Dr. Hahn was invited to present at the International Robotic Surgery Live (IRSL) 2019 (Seoul, Korea).
  • [12/2019] Dr. Hahn gave an invited talk at Chonnam National University.
  • [11/2019] The article “Towards Ubiquitous Blood Pressure Monitoring via Pulse Transit Time,” published in IEEE TBME in 2015, was selected to receive a 2019 IEEE Engineering in Medicine and Biology Most Impactful Paper Award (3rd Place).
  • [10/2019] Dr. Hahn gave an invited talk at Seoul National University.
  • [10/2019] Dr. Hahn gave an invited talk at Samsung Advanced Institute of Technology.
  • [09/2019] Dr. Hahn gave an invited talk at Pohang University of Science and Technology.
  • [09/2019] Dr. Hahn received a CDMRP FORwARD Grant from the US Army [Lead: University of Texas Medical Branch].
  • [08/2019] Dr. Hahn was awarded a research grant from the Office of Naval Research (ONR).
  • [08/2019] Dr. Hahn was appointed as an Associate Editor for the ASME Journal of Dynamic Systems, Measurement and Control.  Dr. Hahn's appointment period will be 2019-2022.
  • [07/2019] Dr. Hahn served as Mini Symposium Organizer at the IEEE Engineering in Medicine and Biology Conference (Berlin, Germany).
  • [07/2019] Dr. Hahn served as Organizer for Invited Sessions at the American Control Conference (Philadelphia, PA).
  • [07/2019] Dr. Hahn received a research grant from the Office of Naval Research (ONR) [Lead: Georgia Institute of Technology].
  • [05/2019] Dr. Hahn received the Outstanding Gemstone Mentor Award from the Gemstone Honors Program at University of Maryland.
  • [05/2019] Dr. Hahn served as Special Session Co-Organizer, Co-Chair, and Presenter at the IEEE Biomedical Health Informatics Conference (Chicago, IL).
  • [04/2019] Dr. Hahn gave an invited talk at the University of Houston.
  • [04/2019] Zahra Ghasemi was awarded a 3-Minute Thesis (3MT) Finalist Award at University of Maryland.
  • [01/2019] Ramin Bighamian joined the George Mason University as Assistant Professor in the Department of Mechanical Engineering.
  • [12/2018] Xin Jin was awarded a Graduate School’s Outstanding Research Assistant Award from University of Maryland.
  • [12/2018] Azin Mousavi was selected as a Future Faculty Fellow in the A.J. Clark School of Engineering at University of Maryland.
  • [11/2018] Dr. Hahn’s patent, “US 10,136,823: Methods and Apparatus for Determining Cuff Blood Pressure” was issued.
  • [11/2018] The article “Ballistocardiogram (BCG)-Based Approach to Cuff-Less Blood Pressure Monitoring: Proof-of-Concept and Potential Challenges” was selected as a Featured Article in IEEE Transactions on Biomedical Engineering.
  • [11/2018] Dr. Hahn will serve for the Bio-Systems and Healthcare Technical Committee in the ASME’s Dynamic Systems and Control Division as Past Chair during 2018-2019.
  • [10/2018] Dr. Hahn served as Co-Organizer for Invited Sessions at the ASME Dynamic Systems and Control Conference (Atlanta, GA).
  • [10/2018] Zahra Ghasemi was invited to attend the Rising Stars in Mechanical Engineering Workshop at the Massachusetts Institute of Technology.
  • [09/2018] Dr. Hahn received a research grant from the FDA to develop test methods for assessing the accuracy of NIBP monitors.
  • [09/2018] Dr. Hahn was awarded a CMMI Grant from the National Science Foundation (NSF).
  • [07/2018] The article “Data Mining Investigation of the Association between a Limb Ballistocardiogram and Blood Pressure” was selected as a Featured Article in Physiological Measurements.
  • [07/2018] Dr. Hahn served as Mini Symposium Organizer, Co-Chair, and Presenter at the IEEE Engineering in Medicine and Biology Conference (Honolulu, HI).
  • [07/2018] Dr. Hahn was awarded an Innovative Project Award from the American Heart Association (AHA).
  • [07/2018] Dr. Hahn was awarded a UM Ventures Seed Grant from University of Maryland.
  • [06/2018] Dr. Hahn was invited to speak at the Samsung Mobile Healthcare Forum.
  • [05/2018] Ramin Bighamian (PhD 2017) was awarded the UMD Department of Mechanical Engineering Best Dissertation Award.
  • [03/2018] Dr. Hahn was awarded a Faculty Early Career Development (CAREER) Award from the National Science Foundation (NSF).
  • [11/2017] Dr. Hahn was featured on the IBM Business of Government Podcast (http://www.businessofgovernment.org/interview/jin-oh-hahn-and-monifa-vaughn-cooke).
  • [11/2017] Dr. Hahn will serve for the Bio-Systems and Healthcare Technical Committee in the ASME’s Dynamic Systems and Control Division as Chair during 2017-2018.
  • [10/2017] The article presented at the '2016 Dynamic Systems and Control Conference “Estimation of Central Aortic Blood Pressure from Non-Invasive Cuff Pressure Oscillation Signals via System Identification” was selected for the 2017 Best Bio-Systems and Healthcare Paper Award from Bio-Systems and Healthcare Technical Committee, ASME Dynamic Systems and Control Division.
  • [10/2017] Dr. Hahn served as Co-Organizer and Co-Chair for Invited Sessions at the ASME Dynamic Systems and Control Conference (Tysons Corner, VA).
  • [08/2017] Dr. Hahn served as Mini Symposium Organizer, Chair, and Speaker at the IEEE Engineering in Medicine and Biology Conference (Jeju, Korea).
  • [07/2017] Dr. Hahn gave an invited talk at Seoul national University (School of Mechanical and Aerospace Engineering), Sogang University, Hanyang University, and Seoul National University (Department of Biomedical Engineering).
  • [07/2017] Dr. Hahn served as Technical Program Committee Member at the IEEE/ACM Conference on Connected Health: Applications, Systems and Engineering Technologies (Philadelphia, PA).
  • [07/2017] Dr. Hahn received a research grant from the FDA to develop test methods for assessing the accuracy of NIBP monitors.
  • [07/2017] Dr. Hahn was awarded a UM Ventures Seed Grant from University of Maryland.
  • [05/2017] Dr. Hahn served as Technical Program Committee Member at the American Control Conference (Seattle, WA).
  • [04/2017] Dr. Hahn served as Technical Program Committee Member at the International Conference on Cyber-Physical Systems (ICCPS; Pittsburgh, PA).
  • [03/2017] Chang-Sei Kim (Post-Doc 2013-2017) joined the Chonnam National University as Assistant Professor in the School of Mechanical Engineering.
  • [12/2016] Zahra Ghasemi was selected as a Future Faculty Fellow in the A.J. Clark School of Engineering at University of Maryland.
  • [12/2016] Dr. Hahn made a Research Collaboration Agreement with the FDA on the Development and Evaluation of Pre-Clinical Test Methods for Physiological Closed-Loop Controlled Medical Devices.
  • [11/2016] Dr. Hahn will serve for the Bio-Systems and Healthcare Technical Committee in the ASME’s Dynamic Systems and Control Division as Vice Chair during 2016-2017.
  • [10/2016] Dr. Hahn gave an invited talk at the University of Washington and the University of Connecticut.
  • [10/2016] Dr. Hahn served as Co-Organizer for Invited Sessions at the ASME Dynamic Systems and Control Conference (Minneapolis, MN).
  • [10/2016] Dr. Hahn received a Small Business Innovation Research Grant from the US Army [Lead: Arcos Medical].
  • [09/2016] Dr. Hahn was invited to participate in the US Frontiers in Engineering Symposium organized by the National Academy of Engineering (Irvine, CA).
  • [08/2016] Dr. Hahn served as Mini Symposium Organizer, Chair, and Speaker at the IEEE Engineering in Medicine and Biology Conference (Orlando, FL).
  • [07/2016] Dr. Hahn served as Technical Program Committee Member as well as Organizer and Chair for Invited Sessions at the American Control Conference (Boston, MA).
  • [06/2016] The article “Patient-Specific Oscillometric Blood Pressure Measurement” was selected as a Featured Article in IEEE Transactions on Biomedical Engineering.
  • [04/2016] Dr. Hahn served as Technical Program Committee Member at the International Conference on Cyber-Physical Systems (ICCPS; Vienna, Austria).
  • [04/2016] Ramin Bighamian was awarded a Graduate Dean’s Dissertation Fellowship from University of Maryland.
  • [04/2016] Bryce Yapps was awarded a Graduate Research Fellowship from the National Science Foundation (NSF).
  • [12/2015] Ramin Bighamian was selected as a Future Faculty Fellow in the A.J. Clark School of Engineering at University of Maryland.
  • [11/2015] Dr. Hahn will serve for the Bio-Systems and Healthcare Technical Committee in the ASME’s Dynamic Systems and Control Division as Secretary during 2015-2016.
  • [10/2015] Ramin Bighamian was selected one of 5 Finalists for the DSCC Best Student Paper Award at ASME Dynamic Systems and Control Conference for the paper entitled “A Control-Oriented Model of Blood Volume Response to Hemorrhage and Fluid Infusion”.
  • [10/2015] Dr. Hahn served as Co-Organizer and Co-Chair for Invited Sessions at the ASME Dynamic Systems and Control Conference (Columbus, OH).
  • [10/2015] Dr. Hahn served as Speaker and Panelist at the FDA Public Workshop on Physiological Closed-Loop Controlled Medical Devices (Silver Spring, MD).
  • [09/2015] The article “Ballistocardiogram as Proximal Timing Reference for Pulse Transit Time Measurement” published in IEEE Transactions on Biomedical Engineering was selected as an Editor’s Choice Article in Science Translational Medicine.
  • [08/2015] Dr. Hahn served as Mini Symposium Organizer at the IEEE Engineering in Medicine and Biology Conference (Milan, Italy).
  • [08/2015] The article “Towards Ubiquitous Blood Pressure Monitoring via Pulse Transit Time” was selected as a Featured Article in IEEE Transactions on Biomedical Engineering.  It was also the most downloaded article in August 2015 in IEEE Transactions on Biomedical Engineering.
  • [06/2015] Shiva Ebrahimi was awarded the Best Oral Presentation Award (Session 2: Biomedical Engineering) from the FGSR Symposium at the University of Alberta.
  • [04/2015] Dr. Hahn served as Program Committee Member and a Panelist at the Medical CPS Workshop, a part of International Conference on Cyber-Physical Systems (Seattle, WA).
  • [11/2014] Dr. Hahn gave an invited talk at the University of Missouri.
  • [10/2014] Dr. Hahn served as Organizer and Chair/Co-Chair for Invited Sessions at the ASME Dynamic Systems and Control Conference (San Antonio, TX). Dr. Hahn was also invited to present at a Frontiers Session at the same conference.
  • [09/2014] Dr. Hahn received a SCIRTS Grant from the Craig. H. Neilsen Foundation as Co-I [Lead: MGH, PI: Dr. Andrew T. Reisner].
  • [08/2014] Dr. Hahn presented in a Mini Symposium at the IEEE Engineering in Medicine and Biology Conference (Chicago, IL).
  • [08/2014] Dr. Hahn was awarded an IIS Grant from the National Science Foundation (NSF), in collaboration with MSU.
  • [08/2014] Dr. Hahn received a U-01 Grant from the National Institute of Health (NIH) as Co-I [Lead: MSU, PI: Dr. Ramakrishna Mukkamala].
  • [07/2014] Dr. Hahn was awarded a CMMI Grant from the National Science Foundation (NSF).
  • [04/2014] Dr. Hahn was awarded a Young Investigator Program (YIP) Award from the Office of Naval Research (ONR).
  • [03/2014] Dr. Hahn gave an invited talk at the Catholic University of America.
  • [03/2014] Ramin Bighamian attended the ‘2014 NSF Early Career Professionals Workshop on Exploring New Frontiers in Cyber-Physical Systems (Washington, DC).
  • [02/2014] Dr. Hahn attended the ‘2014 National Workshop on Research Frontiers in Medical Cyber-Physical Systems (Arlington, VA).
  • [01/2014] Dr. Hahn was awarded a Short-Term Innovative Research (STIR) Grant from the Army Research Office (ARO).
  • [12/2013] Dr. Hahn will serve as a Member of the International Cooperation Committee for the Institute of Control, Robotics and Systems during 2014-2016.
  • [11/2013] Dr. Hahn will serve for the Bio-Systems and Healthcare Technical Committee in the ASME’s Dynamic Systems and Control Division as Publicity Chair during 2013-2015.
  • [10/2013] Dr. Hahn served as Organizer and Chair of Invited Sessions at the ASME Dynamic Systems and Control Conference (Palo Alto, CA).
  • [08/2013] Dr. Hahn gave an invited talk at the University of Pennsylvania.
  • [06/2013] Dr. Hahn was awarded a Young Investigator Grant (YIG) Award from the Korean-American Scientists and Engineers Association (KSEA).
  • [10/2012] Nima Fazeli was selected one of 5 Finalists for the DSCC Best Student Paper Award at ASME Dynamic Systems and Control Conference for the paper entitled “Active Non-Intrusive System Identification for Cardiovascular Monitoring Part I: Excitation and Measurement Protocol Design”.
  • [08/2012] Dr. Hahn served as Session Chair at the IEEE Engineering in Medicine and Biology Conference (San Diego, CA).

 

 

The vision of the Laboratory for Control and Information Systems is to advance health monitoring and maintenance methodologies applicable to a wide range of dynamic systems by exploiting control and systems theory, with priority emphasis on bio-systems, health and medicine, as well as mechanical systems and structures.  To this aim, our research activity covers a number of aspects related to non-intrusive and ubiquitous sensing, 1st-principles modeling combined with system identification and signal processing, condition monitoring and fault diagnostics via on-line estimation and analytical redundancy techniques, and maintenance and intervention via decision making and closed-loop control.  Our current focus areas are 1) physiological systems monitoring, 2) decision-assist, closed-loop control, fault diagnostics and accommodation challenges in critical care resuscitation, and 3) resilient and context-aware medical cyber-physical systems.

Mathematical Modeling, System Identification, Closed-Loop Control, Health Monitoring, Fault Diagnostics and Accommodation in Dynamic Systems with Emphasis on Challenges in Health and Medicine; Physiological Monitoring and Closed-Loop Control; Medical Cyber-Physical Systems


Current research endeavor at the Laboratory for Control and Information Systems concerns systematic design of medical diagnostic and therapeutic systems by exploiting medical digital twin (M-DT) and control theoretic tools, the goal of which is to establish mechanistic insights on physiological processes and closed-loop controls therein via the development and analysis of DTs, and systematically develop DT-based medical diagnostic and therapeutic systems.

The Laboratory for Control and Information Systems currently has 4 core thrust areas: (i) wearable physiological sugnals analytics, (ii) blood pressure (BP) monitoring, (iii) closed-loop autonomous medical care, and (iv) cardiovascular (CV) risk estimation and disease diagnosis.  On the wearable physiological signals analytics front, we investigate the physiological mechanisms and implications of a wide spectrum of physiological signals and apply the insights thus gained to the development of novel healthcare systems.  On the BP monitoring front, we investigate the development of more accurate and convenient BP monitoring systems.  On the closed-loop autonomous medical care front, we investigate the development of M-DT for physiological systems, physiological system identification, virtual patient generation and M-DT-enabled virtual clinical testing, estimation, control, and resilience solutions in autonomous medica care, and wearable bio-robotics.  On the CV risk estimation and disease diagnosis front, we investigate personalized physics-based modeling and system identification of CV system and its application to CV risk predictor estimation, CV disease diagnosis, and CV event prognosis.

Book Chapters

  1. R. Mukkamala, J.O. Hahn, A. Chandrasekhar, “Photoplethysmography in Non-Invasive Blood Pressure Monitoring,” In Press.
  2. R. Mukkamala, J.O. Hahn, “Calibration of Pulse Transit Time-Based Blood Pressure Monitors,” The Handbook of Cuffless Blood Pressure Monitoring, Springer, pp. 163-190, September 2019.
  3. J.O. Hahn, G.A. Dumont, J.M. Ansermino, “Observer-Based Strategies for Anesthesia Drug Concentration Estimation,” Readings in Advanced Pharmacokinetics – Theory, Methods and Applications, InTech, pp. 201-216, April 2012.

 

Journal Papers

  1. S. Kim, J.O. Hahn, B.D. Youn, “Deep Learning-Based Diagnosis of Peripheral Artery Disease via Continuous Property-Adversarial Regularization: Preliminary In Silico Study,” Under Review.
  2. S. Honarvar, H.J. Kwon, M. Caminita, H. Ehsani, Y. Diaz-Mercado, J.O. Hahn, T. Kiemel, J.K. Shim, “Inter-Personal Motor Synergy: Co-Working Strategy Depends on Task Constraints,” Under Review.
  3. W. Yin, A. Tivay, G.C. Kramer, R. Bighamian, J.O. Hahn, “Conflicting Interactions in Multiple Closed-Loop Controlled Critical Care Treatments: A Hemorrhage Resuscitaiton-Intravenous Sedation Case Study,” Under Review.
  4. A. Tivay, G.C. Kramer, J.O. Hahn, “Collective Variational Inference for Personalized and Generative Physiological Modeling,” Under Review.
  5. G. ArabiDarrehDor, A. Tivay, C. Meador, G.C. Kramer, J.O. Hahn, J. Salinas, “Mathematical Modeling, In-Human Evaluation, and Analysis of Volume Kinetics and Kidney Function after Burn Injury and Resuscitation,” IEEE Transactions on Biomedical Engineering, In Press.
  6. Y. Kwon, C.J. Wiles, B.E. Parker Jr., B.C. Clark, M.W. Sohn, S. Mariani, J.O. Hahn, V. Kapur, A. Wellman, S. Redline, A. Azarbarzin, “Pulse Arrival Time, A Novel Sleep Cardiovascular Marker: the Multi-Ethnic Study of Atherosclerosis,” Thorax, In Press.
  7. J. Kimball, J. Zia, S. An, C. Rolfes, J.O. Hahn, M.N. Sawka, O.T. Inan, “Unifying the Estimation of Blood Volume Decompensation Status in a Porcine Model of Relative and Absolute Hypovolemia via Wearable Sensing,” IEEE Journal of Biomedical and Health Informatics, In Press.
  8. K. Natarajan, R.C. Block, M. Yavarimanesh, A. Chandrasekhar, L.K. Mestha, O.T. Inan, J.O. Hahn, R. Mukkamala, “Photoplethysmography Fast Upstroke Time Can Be Useful Features for Cuff-Less Measurement of Blood Pressure Chanegs in Humans,” IEEE Transactions on Biomedical Engineering, In Press.
  9. M. Alsalti, A. Tivay, X. Jin, G.C. Kramer, J.O. Hahn, “Design and In Silico Evaluation of a Closed-Loop Hemorrhage Resuscitation Algorithm with Blood Pressure as Controlled Variable,” ASME Journal of Dynamic Systems, Measurement and Control, In Press.
  10. H.F. Azgomi, J.O. Hahn, R.T. Faghih, “Closed-Loop Fuzzy Energy Regulation in Patients with Hypercortisolism via Inhibitory and Excitatory Intermittent Intermittent Actuation,” Frontiers in Neuroscience, In Press.
  11. R. Bighamian, J.O. Hahn, G.C. Kramer, C.G. Scully, “Accuracy Assessment Methods for Physiological Model Selection toward In Silico Evaluation of Closed-Loop Controlled Medical Devices,” PLOS One, Vol. 16, No. 4, Article Number 0251001, 2021.
  12. S. Shin, S. Lyle, E. Jang, A. Mousavi, P. Yousefian, R. Mukkamala, D.G. Jang, Y.H. Kim, J.O. Hahn, “Posture-Dependent Variability in Wrist Ballistocardiogram-Photoplethysmogram Pulse Transit Time: Implication to Cuff-Less Blood Pressure Tracking,” IEEE Transactions on Biomedical Engineering, In Press.
  13. S. Shin, P. Yousefian, A. Mousavi, R. Mukkamala, D.G. Jang, B.H. Ko, J. Lee, U.K. Kwon, Y.H. Kim, J.O. Hahn, “A Unified Approach to Wearable Ballistocardiogram Gating and Wave Localization,” IEEE Transactions on Biomedical Engineering, Vol. 68, No. 4, pp. 1115-1122, April 2021.
  14. G. ArabiDarrehDor, A. Tivay, R. Bighamian, C. Meador, G.C. Kramer, J.O. Hahn, J. Salinas, “Mathematical Model of Volume Kinetics and Renal Function after Burn Injury and Resuscitation,” Burns, Vol. 47, No. 2, pp. 371-386, March 2021.
  15. S. Honarvar, C.S. Kim, Y. Diaz-Mercado, K. Koh, H.J. Kwon, T. Kiemel, M. Caminita, J.O. Hahn, J.K. Shim, “Unveiling the Neuro-Mechanical Mechanisms Underlying the Synergistic Interactions in Human Sensorimotor System,” Scientific Reports, Vol. 11, Article Number 203, 2021.
  16. P. Yousefian, A. Mousavi, S. Shin, C.S. Kim, A. Tivay, R. Mukkamala, D.G. Jang, B.H. Ko, J. Lee, U.K. Kwon, Y.H. Kim, J.O. Hahn, “Pulse Transit Time-Pulse Wave Analysis Fusion Based on Wearable Wrist Ballistocardiogram for Cuff-Less Blood Pressure Trend Tracking,” IEEE Access, Vol. 8, pp. 138077-138087, 2020.
  17. R.C. Block, M. Yavarimanesh, K. Natarajan, A.M. Carek, A. Mousavi, A. Chandrasekhar, C.S. Kim, J. Zhu, G. Schifitto, L.K. Mestha, O.T. Inan, J.O. Hahn, R. Mukkamala, “Conventional Pulse Transit Times as Markers of Blood Pressure in Humans,” Scientific Reports, Vol. 10, Article Number 16373, 2020.
  18. J. Zia, J. Kimball, C. Rolfe, J.O. Hahn, O.T. Inan, "Enabling the Assessment of Trauma-Induced Hemorrhage via Smart Wearable Systems,” Science Advances, Vol. 6, No. 30, eabb1708, July 2020.
  19. S. Kim, J.O. Hahn, B.D. Youn, “Detection and Severity Assessment of Peripheral Artery Occlusive Disease via Deep Learning Analysis of Arterial Pulse Waveforms: Proof-of-Concept and Potential Challenges,” Frontiers in Bioengineering and Biotechnology, Vol. 8, Article 720, 2020.
  20. A. Chandrasekhar, M. Yavarimanesh, K. Natarajan, J.O. Hahn, R. Mukkamala, “PPG Sensor Contact Pressure Should Be Taken into Account for Cuff-Less Blood Pressure Measurement,” IEEE Transactions on Biomedical Engineering, Vol. 67, No. 11, pp. 3134-3140, November 2020.
  21. Z. Ghasemi, W. Jeon, C. S. Kim, A. Gupta, R. Rajamani, J.O. Hahn, “Observer-Based De-Convolution of Deterministic Input in Coprime Multi-Channel Systems with Its Application to Non-Invasive Central Blood Pressure Monitoring,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 142, No. 9, Article Number 091006, September 2020.
  22. A. Tivay, X. Jin, A. Lo, C.G. Scully, J.O. Hahn, “Practical Use of Regularization in Individualizing a Mathematical Model of Cardiovascular Hemodynamics Using Scarce Data,” Frontiers in Physiology, Vol. 11, Article Number 452, 2020.
  23. H. Mirinejad, B. Parvinian, M Ricks, Y. Zhang, S. Weininger, J.O. Hahn, C.G. Scully, “Evaluation of Fluid Resuscitation Control Algorithms via a Hardware-in-the-Loop Test Bed,” IEEE Transactions on Biomedical Engineering, Vol. 67, No. 2, pp. 471-481, February 2020.
  24. Y. Yao, Z. Ghasemi, M.M.H. Shandhi, H. Ashouri, L. Xu, R. Mukkamala, O.T. Inan, J.O. Hahn, “Mitigation of Instrument-Dependent Variability in Ballistocardiogram Morphology: Case Study on Force Plate and Customized Weighing Scale,” IEEE Journal of Biomedical and Health Informatics, Vol. 24, No. 1, pp. 69-78, January 2020.
  25. M. Yavarimanesh, A. Chandrasekhar, J.O. Hahn, R. Mukkamala, “Commentary:  Relation between Blood Pressure and Pulse Wave Velocity for Human Arteries,” Frontiers in Physiology, Vol. 10, Article 1179, 2019.
  26. A. Chandrasekhar, M. Yavarimanesh, J.O. Hahn, S.H. Sung, C.H. Chen, H.M. Cheng, R. Mukkamala, “Formulas to Explain Popular Oscillometric Blood Pressure Estimation Algorithms,” Frontiers in Physiology, Vol. 10, Article Number 1415, 2019.
  27. P. Yousefian, S. Shin, A. Mousavi, C.S. Kim, R. Mukkamala, D.G. Jang, B.H. Ko, J. Lee, U.K. Kwon, Y.H. Kim, J.O. Hahn, “The Potential of Wearable Limb Ballistocardiogram in Blood Pressure Monitoring via Pulse Transit Time,” Scientific Reports, Vol. 9, Article Number 10666, 2019.
  28. A. Mousavi, A. Tivay, B.A. Finegan, M.S. McMurtry, R. Mukkamala, J.O. Hahn, “Tapered versus Uniform Tube-Load Modeling of Blood Pressure Wave Propagation in Human Aorta,” Frontiers in Physiology, Vol. 10, Article Number 974, 2019.
  29. Y. Yao, S. Shin, A. Mousavi, C.S. Kim, L. Xu, R. Mukkamala, J.O. Hahn, “Unobtrusive Estimation of Cardiovascular Parameters with the Limb Ballistocardiography,” Sensors, Vol. 19, No. 13, Article Number 2922, 2019.
  30. P. Yousefian, S. Shin, A. Mousavi, C.S. Kim, B. Finegan, M.S. McMurtry, R. Mukkamala, D.G. Jang, U.K. Kwon, Y.H. Kim, J.O. Hahn, “Physiological Association between Limb Ballistocardiogram and Arterial Blood Pressure Waveforms: A Mathematical Model-Based Analysis,” Scientific Reports, Vol. 9, Article Number 5146, 2019.
  31. X. Jin, C.S. Kim, S.T. Shipley, G.A. Dumont, J.O. Hahn, “Semi-Adaptive Closed-Loop Control for Infusion of Medications with Transport Delay in Clinical Effects,” ASME Journal of Computational and Nonlinear Dynamics, Vol. 14, No. 10, Article Number 101003, 2019.
  32. X. Jin, R. Bighamian, J.O. Hahn, “Development and In Silico Evaluation of a Model-Based Closed-Loop Fluid Resuscitation Algorithm,” IEEE Transactions on Biomedical Engineering, Vol. 66, No. 7, pp. 1905-1914, July 2019.
  33. J. Zhu, X. Jin, R. Bighamian, C.S. Kim, S.T. Shipley, J.O. Hahn, “Semi-Adaptive Infusion Control of Medications with Excitatory Dose-Dependent Effects,” IEEE Transactions on Control Systems Technology, Vol. 27, No. 4, pp. 1735-1743, 2019.
  34. C.S. Kim, A.M. Carek, O.T. Inan, R. Mukkamala, J.O. Hahn, “Ballistocardiogram-Based Approach to Cuff-Less Blood Pressure Monitoring: Proof-of-Concept and Potential Challenges,” IEEE Transactions on Biomedical Engineering, Vol. 65, No. 11, pp. 2384-2391, November 2018 [Featured Article 11/2018].
  35. P. Yousefian, S. Shin, A. Mousavi, C.S. Kim, R. Mukkamala, D.G. Jang, B.H. Ko, J. Lee, U.K. Kwon, Y.H. Kim, J.O. Hahn, “Data Mining Investigation of the Association between a Limb Ballistocardiogram and Blood Pressure,” Physiological Measurement, Vol. 39, No. 7, Article Number 075009, July 2018 [Featured Article 07/2018].
  36. Z. Ghasemi, J. Lee, C.S. Kim, H.M. Cheng, C.H. Chen, S.H. Sung, R. Mukkamala, J.O. Hahn, “Estimation of Cardiovascular Risk Predictors from Non-Invasively Measured Diametric Pulse Volume Waveforms via Multiple Measurement Information Fusion,” Scientific Reports, Vol. 8, Article Number 10433, 2018.
  37. R. Mukkamala, J.O. Hahn, “Toward Ubiquitous Blood Pressure Monitoring via Pulse Transit Time: Predictions on Maximum Calibration Period and Acceptable Error Limits,” IEEE Transactions on Biomedical Engineering, Vol. 65, No. 6, pp. 1410-1420, June 2018.
  38. X. Jin, J.O. Hahn, “Semi-Adaptive Switching Control for Infusion of Two Interacting Medications,” Biomedical Signal Processing and Control, Vol. 43, pp. 183-195, May 2018.
  39. R. Bighamian, B. Parvinian, C. Scully, G.C. Kramer, J.O. Hahn, “Control-Oriented Physiological Modeling of Hemodynamic Responses to Blood Volume Perturbation,” Control Engineering Practice, Vol. 73, pp. 149-160, April 2018.
  40. A. Chandrasekhar, C.S. Kim, M. Naji, K. Natarajan, J.O. Hahn, R. Mukkamala, “Smartphone-Based Blood Pressure Monitoring via the Oscillometric Finger Pressing Method,” Science Translational Medicine, Vol. 10, eaap8674, March 2018.
  41. J. Lee, Z. Ghasemi, C.S. Kim, H.M. Cheng, C.H. Chen, S.H. Sung, R. Mukkamala, J.O. Hahn, “Investigation of Viscoelasticity in the Relationship between Carotid Artery Blood Pressure and Distal Pulse Volume Waveforms,” IEEE Journal of Biomedical and Health Informatics, Vol. 22, No. 2, pp. 460-470, March 2018.
  42. X. Jin, C.S. Kim, S.S. Shipley, G.A. Dumont, J.O. Hahn, “Coordinated Semi-Adaptive Closed-Loop Control for Infusion of Two Interacting Medications,” International Journal of Adaptive Control and Signal Processing, Vol. 21, No. 1, pp. 134-146, January 2018.
  43. R. Bgihamian, M. Kinsky, G. Kramer, J.O. Hahn, “In-Human Subject-Specific Evaluation of a Control-Theoretic Plasma Volume Regulation Model,” Computers in Biology and Medicine, Vol. 91, pp. 96-102, December 2017.
  44. K. Natarajan, H.M. Cheng, J. Liu, M. Gao, S.H. Sung, C.H. Chen, J.O. Hahn, R. Mukkamala, “Central Blood Pressure Monitoring via a Standard Automatic Arm Cuff,” Scientific Reports, Vol. 7, Article Number 14441, 2017.
  45. B. Yapps, S. Shin, R. Bighamian, J. Thorson, C. Arsenault, S.A. Quraishi, J.O. Hahn, A.T. Reisner, “Hypotension in ICU Patients Receiving Vasopressor Therapy,” Scientific Reports, Vol. 7, Article Number 8551, 2017.
  46. J. Liu, H.M. Cheng, C.H. Chen, S.H. Sung, J.O. Hahn, R. Mukkamala, “Patient-Specific Oscillometric Blood Pressure Measurement: Validation for Accuracy and Repeatability,” IEEE Journal of Translational Engineering in Health and Medicine, Vol. 5, 1900110, 2017.
  47. Z. Ghasemi, C.S. Kim, E. Ginsberg, A. Gupta, J.O. Hahn, “Model-Based Blind System Identification Approach to Estimation of Central Aortic Blood Pressure Waveform from Non-Invasive Diametric Circulatory Signals,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 139, No. 3, Article Number 061003, June 2017.
  48. S.H. You, Y.M. Cho, J.O. Hahn, “Model-Based Fault Detection and Isolation in Automotive Yaw Moment Control System,” International Journal of Automotive Technology, Vol. 18, No. 3, pp. 405-416, March 2017.
  49. S. Ebrahimi Nejad, J.P. Carey, M.S. McMurtry, J.O. Hahn, “Model-Based Cardiovascular Disease Diagnosis: A Preliminary In-Silico Study,” Biomechanics and Modeling in Mechanobiology, Vol.16, No. 2, pp. 549-560, February 2017.
  50. X. Jin, C.S. Kim, G.A. Dumont, J.M. Ansermino, J.O. Hahn, “A Semi-Adaptive Control Approach to Closed-Loop Medication Infusion,” International Journal of Adaptive Control and Signal Processing, Vol. 31, No. 2, pp. 240-254, February 2017.
  51. S.L. Martin, C.S. Kim, A.M. Carek, H. Ashouri, O.T. Inan, J.O. Hahn, R. Mukkamala, “Weighing Scale-Based Pulse Transit Time is a Superior Marker of Blood Pressure than Conventional Pulse Arrival Time,” Scientific Reports, Vol. 6, Article Number 39273, 2016.
  52. R. Bighamian, C.S. Kim, A.T. Reisner, J.O. Hahn, “Closed-Loop Fluid Resuscitation Control via Blood Volume Estimation,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 138, No. 11, Article Number 111005, November 2016.
  53. R. Bighamian, A.T. Reisner, J.O. Hahn, “A Lumped-Parameter Subject-Specific Model of Blood Volume Response to Fluid Infusion,” Frontiers in Physiology, Vol. 7, Article Number 390, 2016.
  54. C.S. Kim, S.L. Ober, M.S. McMurtry, B.A. Finegan, O.T. Inan, R. Mukkamala, J.O. Hahn, “Ballistocardiogram: Mechanism and Potential for Unobtrusive Cardiovascular Health Monitoring,” Scientific Reports, Vol. 6, Article Number 31297, 2016.
  55. J. Liu, H.M. Cheng, C.H. Chen, S.H. Sung, M. Moslehpour, J.O. Hahn, R. Mukkamala, “Patient-Specific Oscillometric Blood Pressure Measurement,” IEEE Transactions on Biomedical Engineering, Vol. 63, No. 6, pp. 1220-1228, June 2016 [Featured Article 06/2016].
  56. C.S. Kim, J.M. Ansermino, J.O. Hahn, “A Comparative Data-Based Modeling Study on Respiratory Gas Exchange,” Frontiers in Bioengineering and Biotechnology, Vol. 4, Article Number 8, 2016.
  57. R. Bighamian, S. Solemani, A.T. Reisner, I. Seri, J.O. Hahn, “Prediction of Hemodynamic Response to Epinephrine via Model-Based System Identification,” IEEE Journal of Biomedical and Health Informatics, Vol. 20, No. 1, pp. 416-423, January 2016.
  58. C.S. Kim, A.M. Carek, R. Mukkamala, O.T. Inan, J.O. Hahn, “Ballistocardiogram as Proximal Timing Reference for Pulse Transit Time Measurement: Potential for Cuffless Blood Pressure Monitoring,” IEEE Transactions on Biomedical Engineering, Vol. 62, No. 11, pp. 2657-2664, November 2015 [Editor’s Choice Article in Science Translational Medicine].
  59. K. Koh, H.J. Kwon, B.C. Yoon, Y. Cho, J.H. Shin, J.O. Hahn, R.H. Miller, Y.H. Kim, J.K. Shim, “The Role of Tactile Sensation in Online and Offline Hierarchical Control of Multi-Finger Force Synergy,” Experimental Brain Research, Vol. 233, No. 9, pp. 2539-2548, September 2015.
  60. C.S. Kim, J.O. Hahn, K.S. Hong, Wan-Suk Yoo, “Estimation of Tire-Road Friction Coefficient Based on On-Board 6-DoF Acceleration Measurement,” IEEE Transactions on Vehicular Technology, Vol. 64, No. 8, pp. 3368-3377, August 2015.
  61. R. Mukkamala, J.O. Hahn, O.T. Inan, L.K. Mestha, C.S. Kim, H. Töreyin, S. Kyal, “Toward Ubiquitous Blood Pressure Monitoring via Pulse Transit Time: Theory and Practice,” IEEE Transactions on Biomedical Engineering, Vol. 62, No. 8, pp. 1879-1901, August 2015 [Featured Article 08/2015; Most Downloaded Article 08/2015; 2019 IEEE Engineering in Medicine and Biology Society Most Impactful Paper Award (3rd Place Prize)].
  62. P. Ataee, J.O. Hahn, G.A. Dumont, W.T. Boyce, “A Model-Based Approach to Stability Analysis of Autonomic-Cardiac Regulation,” Computers in Biology and Medicine, Vol. 61, pp. 119-126, June 2015.
  63. C.S. Kim, N. Fazeli, J.O. Hahn, “Data-Driven Modeling of Pharmacological Systems using Endpoint Information Fusion,” Computers in Biology and Medicine, Vol. 61, pp. 36-47, June 2015.
  64. R. Bighamian, H.R. Mirdamadi, J.O. Hahn, “Damage Identification in Collocated Structural Systems Using Structural Markov Parameters,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 137, No. 4, Article Number 041001, April 2015.
  65. C.S. Kim, N. Fazeli, M.S. McMurtry, B.A. Finegan, J.O. Hahn, “Quantification of Wave Reflection Using Peripheral Blood Pressure Waveforms: A Feasibility Study,” IEEE Journal of Biomedical and Health Informatics, Vol. 19, No. 1, pp. 309-316, January 2015.
  66. N. Fazeli, C.S. Kim, M. Rashedi, A. Chappell, S. Wang, R. MacArthur, M.S. McMurtry, B.A. Finegan, J.O. Hahn, “Subject-Specific Estimation of Central Aortic Blood Pressure via System Identification: Preliminary In-Human Experimental Study,” Medical and Biological Engineering and Computing, Vol. 52, No. 10, pp. 895-904, October 2014.
  67. M. Abdollahzade, C.S. Kim, N. Fazeli, B.A. Finegan, M.S. McMurtry, J.O. Hahn, “Data-Driven Lossy Tube-Load Modeling of Arterial Tree: In-Human Study,” ASME Journal of Biomechanical Engineering, Vol. 136, No. 10, Article Number 101011, August 2014.
  68. R. Bighamian, J.O. Hahn, “Relationship between Stroke Volume and Pulse Pressure during Blood Volume Perturbation: A Mathematical Analysis,” Biomed Research International, Vol. 2014, Article ID 459269 (10 Pages), 2014.
  69. P. Ataee, J.O. Hahn, G.A. Dumont, W.T. Boyce, “Non-Invasive Subject-Specific Monitoring of Autonomic Cardiac Regulation,” IEEE Transactions on Biomedical Engineering, Vol. 61, No. 4, pp. 1196-1207, April 2014.
  70. J.O. Hahn, “Individualized Estimation of Central Aortic Blood Pressure Waveform: A Comparative Study,” IEEE Journal of Biomedical and Health Informatics, Vol. 18, No. 1, pp. 215-221, January 2014.
  71. R. Bighamian, A.T. Reisner, J.O. Hahn, “An Analytic Tool for Prediction of Hemodynamic Responses to Vasopressors,” IEEE Transactions on Biomedical Engineering, Vol. 61, No. 1, pp. 109-118, January 2014.
  72. K. Soltesz, J.O. Hahn, T. Hägglund, G.A. Dumont, J.M. Ansermino, “Individualized Closed-Loop Control of Propofol Anesthesia: A Preliminary Study,” Biomedical Signal Processing and Control, Vol. 8, No. 6, pp. 500-508, November 2013.
  73. J. Liu, J.O. Hahn, R. Mukkamala, “Error Mechanisms of the Oscillometric Fixed-Ratio Blood Pressure Measurement Method,” Annals of Biomedical Engineering, Vol. 41, No. 3, pp. 587-597, March 2013.
  74. S.H. You, Y.M. Cho, J.O. Hahn, “A Component-Level Failure Detection and Identification Algorithm Based on Open-Loop and Closed-Loop State Estimators,” Mechanical Systems and Signal Processing, Vol. 36, No. 2, pp. 471-486, April 2013.
  75. M. Rashedi, N. Fazeli, A. Chappell, S. Wang, R. MacArthur, M.S. McMurtry, B.A. Finegan, J.O. Hahn, “Comparative Study on Tube-Load Modeling of Arterial Hemodynamics in Humans,” ASME Journal of Biomechanical Engineering, Vol. 135, No. 3, Article Number 031005, March 2013.
  76. J.O. Hahn, G.A. Dumont, J.M. Ansermino, “System Identification and Closed-Loop Control of End-Tidal CO2 in Mechanically Ventilated Patients,” IEEE Journal of Biomedical and Health Informatics, Vol. 16, No. 6, pp. 1176-1184, November 2012.
  77. J.O. Hahn, G.A. Dumont, J.M. Ansermino, “Robust Closed-Loop Control of Hypnosis with Propofol Using WAVCNS Index as the Controlled Variable,” Biomedical Signal Processing and Control, Vol. 7, No. 5, pp. 517-524, September 2012.
  78. N. Fazeli, J.O. Hahn, “Estimation of Cardiac Output and Total Peripheral Resistance Using Square-Wave-Approximated Aortic Flow Signal,” Frontiers in Physiology, Vol. 3, Article Number 298, pp. 1-10, July 2012.
  79. S.H. You, J.O. Hahn, “Recurrent-Neural-Network-Based Identification of a Cascade Hydraulic Actuator for Closed-Loop Automotive Power Transmission Control,” Journal of Mechanical Science and Technology, Vol. 26, No. 5, pp. 1599-1606, May 2012.
  80. J.O. Hahn, A.T. Reisner, H.H. Asada, F.A. Jaffer, “Subject-Specific Estimation of Central Aortic Blood Pressure Using an Individualized Transfer Function: A Preliminary Feasibility Study,” IEEE Journal of Biomedical and Health Informatics, Vol. 16, No. 2, pp. 212-220, March 2012.
  81. S. Khosravi, J.O. Hahn, G.A. Dumont, J.M. Ansermino, “A Monitor-Decoupled Pharmacodynamic Model of Propofol in Children Using State Entropy as Clinical Endpoint,” IEEE Transactions on Biomedical Engineering, Vol. 59, No. 3, pp. 736-743, March 2012.
  82. J.O. Hahn, G.A. Dumont, J.M. Ansermino, “A Direct Dynamic Dose-Response Model of Propofol for Individualized Anesthesia Care,” IEEE Transactions on Biomedical Engineering, Vol. 59, No. 2, pp. 571-578, February 2012.
  83. G. Zhang, J.O. Hahn, R. Mukkamala, “Tube-Load Model Parameter Estimation for Monitoring of Arterial Hemodynamics,” Frontiers in Physiology, Vol. 2, Article Number 72, pp. 1-18, November 2011.
  84. J.O. Hahn, S. Khosravi, M. Dosani, G.A. Dumont, J.M. Ansermino, “Pharmacodynamic Modeling of Propofol-Induced Tidal Volume Depression in Children,” Journal of Clinical Monitoring and Computing, Vol. 25, No. 4, pp. 275-284, August 2011.
  85. J.O. Hahn, S. Khosravi, G.A. Dumont, J.M. Ansermino, “Two-Stage versus Mixed Effects Approaches to Pharmacodynamic Modeling of Propofol in Children Using State Entropy,” Pediatric Anesthesia, Vol. 21, No. 6, pp. 691-698, June 2011.
  86. J.O. Hahn, G.A. Dumont, J.M. Ansermino, “Closed-Loop Anesthetic Drug Concentration Estimation via Clinical Effect Feedback,” IEEE Transactions on Biomedical Engineering, Vol. 58, No. 1, pp. 3-6, January 2011.
  87. J.O. Hahn, A.T. Reisner, H.H. Asada, “Estimation of Pulse Transit Time Using Two Diametric Blood Pressure Waveform Measurements,” Medical Engineering and Physics, Vol. 32, No. 7, pp. 753-759, September 2010.
  88. J.O. Hahn, D.B. McCombie, A.T. Reisner, H.M. Hojman, H.H. Asada, “Identification of Multi-Channel Cardiovascular Dynamics Using Dual Laguerre Basis Functions for Noninvasive Cardiovascular Monitoring,” IEEE Transactions on Control Systems Technology, Vol. 18, No. 1, pp. 170-176, January 2010.
  89. S.H You, S. Yoo, J.O. Hahn, H. Lee, K.I. Lee, “New Adaptive Approaches to Real-Time Estimation of Vehicle Sideslip,” Control Engineering Practice, Vol. 17, No. 12, pp. 1367-1379, December 2009.
  90. J.O. Hahn, A.T. Reisner, H.H. Asada, “Modeling and 2-Sensor Blind Identification of Human Cardiovascular System,” Control Engineering Practice, Vol. 17, No. 11, pp. 1318-1328, November 2009.
  91. J.O. Hahn, A.T. Reisner, H.H. Asada, “Blind Identification of Two-Channel IIR Systems with Application to Central Cardiovascular Monitoring,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 131, No. 5, Article Number 051009, September 2009.
  92. S.H. You, J.S. Jo, S. Yoo, J.O. Hahn, K.I. Lee, “Vehicle Lateral Stability Management Using Gain-Scheduled Robust Control,” Journal of Mechanical Science and Technology, Vol. 20, No. 11, pp. 1898-1913, November 2006.
  93. S.H. You, J.O. Hahn, Y.M. Cho, K.I. Lee, “Modeling and Control of a Hydraulic Unit for Direct Yaw Moment Control in an Automobile,” Control Engineering Practice, Vol. 14, No. 9, pp. 1011-1022, September 2006.
  94. J.O. Hahn, R. Rajamani, S.H. You, K.I. Lee, “Real-Time Identification of Road Bank Angle Using Differential GPS,” IEEE Transactions on Control Systems Technology, Vol. 12, No. 4, pp. 589-599, July 2004.
  95. J.O. Hahn, J.W. Hur, Y.M. Cho, K.I. Lee, “Empirical Modeling of a Hydraulic Actuator in a Vehicle Control System,” Mathematical and Computer Modeling of Dynamical Systems, Vol. 9, No. 2, pp. 193-208, September 2003.
  96. D.H. Kim, K.J. Yang, K.S. Hong, J.O. Hahn, K.I. Lee, “Smooth Shift Control of Automatic Transmissions Using a Robust Adaptive Scheme with Intelligent Supervision,” International Journal of Vehicle Design, Vol. 32, No. 3/4, pp. 250-272, September 2003.
  97. J.O. Hahn, S. Kang, K.I. Lee, “Nonlinear Robust Control of Passenger Car Torque Converter Bypass Clutch,” Transactions of KSME, Vol. 27, No. 8, pp. 1251-1258, August 2003.
  98. J.O. Hahn, K. Yi, S. Kang, K.I. Lee, “Robust Vehicle Stability Control Using Disturbance Observer,” Transactions of KSME, Vol. 26, No. 12, pp. 2519-2526, December 2002.
  99. J.O. Hahn, J.W. Hur, G.W. Choi, Y.M. Cho, K.I. Lee, “Self-Learning Approach to Automatic Transmission Shift Control in a Commercial Construction Vehicle during the Inertia Phase,” Journal of Automobile Engineering, Vol. 216, No. D11, pp. 909-919, November 2002.
  100. J.O. Hahn, R. Rajamani, L. Alexander, “GPS-Based Real-Time Identification of Tire-Road Friction Coefficient,” IEEE Transactions on Control Systems Technology, Vol. 10, No. 3, pp. 331-343, May 2002.
  101. J.O. Hahn, J.W. Hur, Y.M. Cho, K.I. Lee, “Robust Observer-Based Monitoring of a Hydraulic Actuator in a Vehicle Power Transmission Control System,” Control Engineering Practice, Vol. 10, No. 3, pp. 327-335, March 2002.
  102. J.O. Hahn, K.I. Lee, “Nonlinear Robust Control of Torque Converter Clutch Slip System for Passenger Vehicles Using Advanced Torque Estimation Algorithms,” Vehicle System Dynamics, Vol. 37, No. 3, pp. 175-192, March 2002.
  103. D.H. Kim, J.O. Hahn, B.K. Shin, K.I. Lee, “Adaptive Compensation Control of Vehicle Automatic Transmissions for Smooth Shift Transients Based on Intelligent Supervisor,” Journal of Mechanical Science and Technology, Vol. 15, No. 11, pp. 1272-1281, November 2001.
  104. B.K. Shin, J.O. Hahn, K. Yi, K.I. Lee, “A Supervisor-Based Neural-Adaptive Shift Controller for Automatic Transmissions Considering Throttle Opening and Driving Load,” Journal of Mechanical Science and Technology, Vol. 14, No. 4, pp. 418-425, April 2000.
  105. J.O. Hahn, B.K. Shin, H.S. Jo, K.I. Lee, “Fuzzy Logic Slip Control of Torque Converter Clutch System for Passenger Car Considering Road Grade Resistance,” Transactions of KSME, Vol. 24, No. 3, pp. 718-727, March 2000.
  106. S.H. Lim, J.O. Hahn, K.I. Lee, “The Dynamic Modeling for Components of Automatic Transmission and Integrated Simulation through the Modular Approach Method,” Transactions of KSME, Vol. 22, No. 12, pp. 2171-2186, December 1998.

 

 

Young Investigator Fellowship Supports "Third Lung" Research

Project members are developing the "Third Lung," a transformative technology for extra-pulmonary respiration.

Mechanical Engineering Celebrates Graduate Students’ Achievement

Annual awards ceremony recognizes outstanding graduate student achievements.

Clark School Innovators Honored with Invention of the Year Award Nominations

Among the nine 2021 Invention of the Year nominees, four are led by or include Clark School researchers.

Hahn Named ASME Fellow

Associate Professor Jin-Oh Hahn was elected an ASME Fellow for significant contributions to the engineering community.

Groth Wins NSF CAREER Award

UMD professor works to advance the risk assessment field.

Hahn and Co-Authors Receive 2019 IEEE Engineering in Medicine and Biology Paper Award

Award recognizes impact factor and contributions of highly cited papers.

Eight mechanical engineering students accepted to Future Faculty Program

The program prepares students to achieve career-long success in academia as educators and researchers.

Empowering Experience and Innovation

Working together, the University of Maryland and IBM encourage students and faculty to think big and leverage technology.

Cuff, Scale, and Smartphone

New blood pressure monitoring technologies could enhance accuracy and accessibility.

Hahn Receives NSF CAREER Award

NSF awards Hahn funding to research “white-box” autonomy in medical systems.

Five Mechanical Engineering Graduate Students Named Future Faculty Fellows

Clark School program prepares graduate students for future academic career.

ME Professors Featured on IBM Business of Government Podcast

Assistant Professors Fuge, Hahn, and Vaughn-Cooke featured on podcast to discuss new research in their fields.

UMD-Led Research Predicts Dangerous Blood Pressure Drops in ICU Patients

A ME research team, led by Jin-Oh Hahn, publishes on blood pressure modeling in Nature Scientific Reports.

Standing on a Scale Could Provide Non-Invasive Measure of Cardiovascular Health

New research published in Nature's Scientific Reports could provide a non-invasive and cost effective means to better measure cardiovascular health.

Could Standing On A Scale Give You Better Insights Into Your Cardiovascular Health?

New research published in Scientific Reports could lead to improving non-invasive cardiovascular health monitoring.

Five Mechanical Engineering Graduate Students Selected for Clark School Future Faculty Program

Graduate students selected for program designed to produce next great engineering professors.

Hahn Receives 2014 ONR YIP Award

Mechanical Engineering Assistant Professor Jin-Oh Hahn receives Office of Naval Research Young Investigator Program award.

Shaking Things Up: UMD Engineering Students Build Innovative Solution to Help Save Honey Bees

Undergrads gain hands-on experience helping biologists build solutions for critical honey bee issue.

ME Assistant Professor Awarded KSEA Young Investigator Grant

Professor Jin-Oh Hahn receives $10,000 from the Korean-American Scientists and Engineers Association to support his research.

Graduate Student Nima Fazeli Selected as Best Student Paper Finalist

The winner will be announced at the 2012 ASME Dynamic Systems and Control Conference.

Dr. Jin-Oh Hahn Joins ME Faculty

Assistant professor’s research focuses on condition monitoring of dynamic systems.