During his PhD studies, László conducted research on the mathematical modelling and computer-based reliability and availability optimisation of industrial plants. He performed Fault Tree Analyses by the semi-automatic and automatic processing of statistical probability of failure rate data. He used the resulted Boolean logic implementation to combine a series of lower-level events in order to minimise the undesired state (downtime) in industrial plants, leveraging computational intelligence in reliability engineering. László used mission-critical statistics for availability prediction to identify the items that can affect plant operation, resulting in the real-time intelligent automation of preventive unit replacement and constant review of spare provisioning. He introduced a hybrid maintenance scheduling method to improve the computational time limitations and constraints using an innovative Artificial Intelligence approach with advanced knowledge-based and expert system models, as well as fuzzy logic. László implemented AI technologies such as case-based reasoning and rule-based reasoning in his maintenance management method. The software engineering outcome of his research was a software development methodology to address the limitations of reliability software tools using Bayesian Weibull tree models for reliability analysis of industrial plants. The efficiency of his original contributions was tested on real-life power system data, including failure rate probabilities of Termizo, a waste-to-energy plant, and MOL Group’s Danube Oil Refinery in Százhalombatta. The results of his research can be used to reduce or prevent unexpected failures, secure an uninterrupted energy supply, optimise energy generation, and achieve cleaner production. László presented his research results at international conferences and published peer-reviewed journal papers.

In cooperation with other CPI2 members, László suggested a methodology for interactive structured multimedia presentations to be used in higher education incorporating animations, video, and voiceover. The limitations of traditional presentation methods were addressed by semantic annotation and comprehensive features via standard-based data representation also suitable for online multimedia materials.

Selected Publications

Journal Papers

  • Sikos, L., Klemeš, J. Evaluation and assessment of reliability and availability software for securing an uninterrupted energy supply. Clean Technologies and Environmental Policy 2010, 12(2):137–146, DOI: 10.1007/s10098-009-0243-2. ISSN 1618-954X (Print), 1618-9558 (Online)

  • Sikos, L., Klemeš, J. Reliability, availability and maintenance optimisation of Heat Exchanger Networks. Applied Thermal Engineering 2010, 30(1):63–69, DOI: 10.1016/j.applthermaleng.2009.02.013

  • Sikos, L., Klemeš, J. RAMS contribution to efficient waste minimisation and management. Journal of Cleaner Production 2009, 17(10):932–939, DOI: 10.1016/j.jclepro.2009.02.009

Conference Proceedings

  • Klemeš, J., Lam, H. L., Sikos, L. F., Varbanov, P. The role of structured media in the improvement of the impact of education in energy efficiency and savings. ER2E09, Oujda, Morocco, 26–27 October 2009

  • Klemeš, J., Sikos, L., Varbanov, P. Reliability, Availability, Maintenance and Safety of compact Heat Exchanger Networks. From Microscale Phenomena to Industrial Applications, keynote lecture, Heredia, Costa Rica, 13–18 September 2009, DOI: 10.1080/01457632.2011.584806

  • Klemeš, J., Lam, H. L., Varbanov, P., Sikos, L. The role of structured multimedia to improve the PSE Teaching impact. ESCAPE 19, invited lecture, Cracow, Poland, 14–17 June 2009

  • Sikos, L., Klemeš, J. CAPE Contribution to availability and reliability of W2E. ESCAPE 19, Cracow, Poland, 14–17 June 2009

  • Klemeš, J., Sikos, L., Varbanov, P., Lam, H. L. The role of structured multimedia to improve the teaching impact in process integration. PRES 2009, Rome, Italy, 10–13 May 2009

  • Sikos, L., Klemeš, J. Optimisation of HEN maintenance. PRES 2009, Rome, Italy, 10–13 May 2009

  • Sikos, L., Klemeš, J. Efficient CAPE tools for optimising reliability issues of WM. CAPE Forum 2009, Shannon, Ireland, 27–28 March 2009

  • Sikos, L., Klemeš, J. Availability and reliability issues of MWM. ECOPHOS, Brno, Czech Republic, 6 November 2008

  • Sikos, L., Klemeš, J. Availability and reliability issues of MWM. CHISA 2008, Prague, Czech Republic, 24–28 August 2008

  • Sikos, L., Klemeš, J. Reliability and maintenance software in energy generation and saving. EMINENT 2, Hungary, 5–6 May, 2008

Major Projects

  • 2006–2010 FuturIT

  • 2008–2010 INEMAGLOW

  • 2008–2010 EMINENT2

  • 2008–2009 ECORSE

  • 2008–2009 ESCHAINS


  • Invited reviewer, JACCES, 2012

  • Invited reviewer, Elsevier, 2009

Research Grants

  • INEMAGLOW, ESCHAINS, ECORSE, EMINENT: four Framework Programme (FP) projects, founded by the European Commission, 2008–2010

  • FuturIT (J_KUVE05), a multi-million forint Research & Development project, founded by the Government, 2007–2009

  • Government Scholarship for PhD studies, 2006–2009

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