Ravelijn

prof.dr.ir. E.W. Hans (Erwin)

Full professor Operations Management in Healthcare
BMS-HBE-IEMS
Ravelijn 3345
e.w.hans@utwente.nl
+31534893523
Business card

Prof.dr.ir. Erwin W. Hans is a full professor Operations Management in Healthcare. He is the co-founder of the research centre CHOIR (Centre for Healthcare Operations Improvement & Research). His research interests are healthcare operations management, healthcare operations research, capacity management, planning and scheduling. He is a lecturer in various graduate and undergraduate programs at the University of Twente.

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Expertise

  • Computer Science

    • Models
    • Scheduling
    • Heuristics

  • Nursing and Health Professions

    • Patient
    • Hospital

  • Social Sciences

    • Health Care
    • Planning
    • Hospitals

Organisations

Erwin W. Hans is a Professor of Operations Management in Healthcare with full tenure. He obtained his MSc degree in Applied Mathematics in 1996, specialising in mathematical modelling and operations research. He received his doctorate from the University of Twente in 2001, having studied resource capacity planning with applications in discrete manufacturing and project environments. He now works in the department of Industrial Engineering & Business Information Systems and within the University of Twente. His research focuses on healthcare process optimisation using modelling and optimisation techniques from Operations Research and Management Science. He co-founded the Centre of Healthcare Operations Improvement & Research (CHOIR – http://www.utwente.nl/choir), the Netherlands’ centre of expertise in healthcare logistics. He works with several (university) hospitals and has studied applications like the operating theatre, ICU, and radiology departments.

Publications

2026

Enhancing pharmaceutical cold supply chain: integrating medication synchronization and diverse delivery modes (2026)International transactions in operational research, 33(3), 2082-2118. Potters, E., Mosalla Nezhad, B., Bernard, V. J., Hans, E. & Asadi, A.https://doi.org/10.1111/itor.13589

2025

Improving the quality of classroom allocation in higher education: Towards efficient and effective use of space (2025)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. Oude Vrielink, R.https://doi.org/10.3990/1.9789036569422Fifty years of operational research applied to healthcare: Invited Review in Celebration of the 50th Anniversary of EURO (2025)European journal of operational research, 326(2), 189-206. Beliën, J., Brailsford, S., Demeulemeester, E., Demirtas, D., Hans, E. W. & Harper, P.https://doi.org/10.1016/j.ejor.2024.12.040A chance-constrained program for the allocation of nurses in acute home healthcare (2025)Health systems, 14(4), 276-290. Lok-Visser, J., Bos, H., Hans, E. W. & Leeftink, G.https://doi.org/10.1080/20476965.2025.2467643Decision Making Under Uncertainty in Healthcare (2025)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. Bos, H.https://doi.org/10.3990/1.9789036566391Bed census prediction combining expert opinion and patient statistics (2025)Omega, 133. Article 103262. Bos, H., Baas, S., Boucherie, R. J., Hans, E. W. & Leeftink, G.https://doi.org/10.1016/j.omega.2024.103262Transdisciplinary perspectives on waiting for healthcare services in South Africa (2025)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. van Zyl-Cillie, M. M.https://doi.org/10.3990/1.9789036564380Inter-organizational pooling of NICU nurses in the Dutch neonatal network: A simulation-optimization study (2025)Health care management science, 28(1), 64-83. Article 100695. Leeftink, G., Morris, K., Antonius, T., de Vries, W. & Hans, E.https://doi.org/10.1007/s10729-025-09697-8

2024

Strategic placement of volunteer responder system defibrillators (2024)Health care management science, 27, 503–524. Buter, R., Nazarian, A., Koffijberg, H., Hans, E. W., Stieglis, R., Koster, R. W. & Demirtas, D.https://doi.org/10.1007/s10729-024-09685-4Building organizational resilience through operational excellence: A systematic literature review and qualitative study (2024)[Contribution to conference › Paper] 31st International Annual EurOMA Conference 2024. Brauel, K., van Dun, D. H. & Hans, E. W.

Research profiles

  • Lecturer for the Industrial Engineering & Management and Health Science BSc and MSc programmes.
  • Lecturer for the Leadership Honours Programme
  • Lecturer for post-academic courses for healthcare professionals.

Affiliated study programs

Courses academic year 2026/2027

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses academic year 2025/2026

Courses academic year 2024/2025

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