Research

Research

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Active research areas

  • Online guaranteed reachability computation for systems experiencing impairment (diminishment of control authority, changed dynamics). In particular, theory that applies directly to complex nonlinear systems is the focus of this research area.

  • Safe control of distributed parameter systems (partial differential equations), with applications to autonomous electrosurgery.

Publications

Peer-reviewed publications

Journal Papers

  • B. Petrus*, Z. Chen*, H. El-Kebir*, J. Bentsman, and B.G. Thomas, “Solid Boundary Output Feedback Control of The Stefan Problem: The Enthalpy Approach,” IEEE Transactions on Automatic Control, 2021. Revised version submitted for publication.

  • H. El-Kebir and Melkior Ornik, “Online Guaranteed Reachable Set Approximation for Systems with Changed Dynamics and Control Authority,” IEEE Transactions on Automatic Control, 2021. Submitted for review.

  • S. Zhang, J. Bentsman, X. Lou, C. Neuschaefer, Y. Lee, and H. El-Kebir, “Multiresolution GPC-Structured Control of a Single-Loop Cold-Flow Chemical Looping Testbed,” Energies, vol. 13, p. 1759, Apr. 2020. https://doi.org/10.3390/en13071759 (open access).

  • H. El-Kebir, M.C. Mazza, and J.C.M. Liu, “Perceptions of Open Innovation at CERN: An Explorative Study,” CERN IdeaSquare Journal of Experimental Innovation, vol. 3, pp. 57–61, 2019. https://doi.org/10.23726/cij.2019.945 (open access).

* Shared co-first authorship.

Conference Papers

  • H. El-Kebir*, T. Shafa*, A. Purushottam, M. Ornik, and A. Soylemezoglu, “High-Frequency Vibration Reduction for Unmanned Ground Vehicles on Unstructured Terrain,” in Proc. of 2021 Modelling & Simulation of Autonomous Systems (MESAS’21) Conference, 2021. To appear in print. (open access)

  • H. El-Kebir, Y. Lee, R. Berlin, E. Benedetti, P. C. Giulianotti, L. P. Chamorro, and J. Bentsman, “Online Hypermodel-based Path Planning for Feedback Control of Tissue Denaturation in Electrosurgical Cutting,” in Proc. of 11th IFAC Symposium on Biological and Medical Systems, Ghent, Belgium, 2021. To appear in print. (open access)

  • H. El-Kebir and M. Ornik, “Online Inner Approximation of Reachable Sets of Nonlinear Systems with Diminished Control Authority,” in Proc. of 2021 Conference on Control and Its Applications, (Philadelphia, PA), pp. 9–16, Society for Industrial and Applied Mathematics, 2021. https://doi.org/10.1137/1.9781611976847.2 (open access)

  • H. El-Kebir and J. Bentsman, “PDE-Based Modeling and Non-collocated Feedback Control of Electrosurgical-Probe/Tissue Interaction,” in 2021 American Control Conference (ACC). New Orleans, LA, USA: IEEE, 2021, pp. 4045–4050. https://doi.org/10.23919/ACC50511.2021.9483240 (open access)

* Shared co-first authorship.

Non-peer-reviewed publications

Conference papers

  • El-Kebir, H., & Ornik, M. (2020). In-flight Air Density Estimation and Prediction for Hypersonic Flight Vehicles. In 23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference. https://doi.org/10.2514/6.2020-2412 (open access)

Coverage

2021

Our achievements in the NASA LEAPFROG challenge were showcased by the Department of Aerospace Engineering at UIUC: Illinois team wins NASA’s LEAPFROG challenge.

2020

My research on in-flight air density estimation was featured by the Department of Aerospace Engineering at UIUC: Predicting in-flight air density for more accurate landing | Aerospace at Illinois.

Talks

CSLSC21

I gave a talk on my research on online guaranteed reachability reachable computation at the University of Illinois’ Coordinated Science Laboratory Student Conference 2021, during the Optimization, Control, and Reinforcement Learning Technical Session held on February 24, 2021:

The slides can be accessed here . A simple code example of the approach presented can be found on Github here .

  • Languages English