Abonyi J and Hangos KM (2011), "Számítógéppel támogatott folyamatmérnökség -- hazai és nemzetközi eredmények, a jövő kihívásai", Magyar Kémiai Folyoirat. Vol. 157, pp. 165. |
BibTeX:
@article{Abonyi2011, author = {Abonyi, J. and Hangos, K. M.}, title = {Számítógéppel támogatott folyamatmérnökség -- hazai és nemzetközi eredmények, a jövő kihívásai}, journal = {Magyar Kémiai Folyoirat}, year = {2011}, volume = {157}, pages = {165} } |
Ács B, Szederkényi G and Csercsik D (2017), "A New Efficient Algorithm for Determining All Structurally Different Realizations of Kinetic Systems", MATCH Commun. Math. Comput. Chem.. Vol. 77(2), pp. 299-320.. |
BibTeX:
@article{Acs2017, author = {B. Ács and G. Szederkényi and D. Csercsik}, title = {A New Efficient Algorithm for Determining All Structurally Different Realizations of Kinetic Systems}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2017}, volume = {77}, number = {2}, pages = {299-320.}, doi = {http://match.pmf.kg.ac.rs/electronic_versions/Match77/n2/match77n2_299-320.pdf} } |
Ács B, Szederkényi G, Tuza ZA and Tuza Z (2015), "Computing Linearly Conjugate Weakly Reversible Kinetic Structures Using Optimization and Graph Theory", MATCH Commun. Math. Comput. Chem.. Vol. 74, pp. 489-512. |
BibTeX:
@article{Acs2015, author = {B. Ács and G. Szederkényi and Z. A. Tuza and Zs. Tuza}, title = {Computing Linearly Conjugate Weakly Reversible Kinetic Structures Using Optimization and Graph Theory}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2015}, volume = {74}, pages = {489-512}, url = {http://match.pmf.kg.ac.rs/electronic_versions/Match74/n3/match74n3_481-504.pdf} } |
Ács B, Szederkényi G, Tuza Z and Tuza Z (2016), "Computing all possible graph structures describing linearly conjugate realizations of kinetic systems", Computer Physics Communications. Vol. 204, pp. 11-20. |
BibTeX:
@article{Acs2016, author = {B. Ács and G. Szederkényi and Zs. Tuza and Z.A. Tuza}, title = {Computing all possible graph structures describing linearly conjugate realizations of kinetic systems}, journal = {Computer Physics Communications}, year = {2016}, volume = {204}, pages = {11-20}, doi = {10.1016/j.cpc.2016.02.020} } |
Ailer P, Pongrácz B and Szederkényi G (2005), "Constrained control of a low power industrial gas turbine based on input-output linearization", In International Conference on Control and Automation, ICCA 2005. Budapest, Hungary, June, 2005. , pp. 368-373.
[BibTeX] |
BibTeX:
@conference{Ailer2005, author = {P. Ailer and B. Pongrácz and G. Szederkényi}, title = {Constrained control of a low power industrial gas turbine based on input-output linearization}, booktitle = {International Conference on Control and Automation, ICCA 2005}, year = {2005}, pages = {368--373} } |
Ailer P, Sánta I, Szederkényi G and Hangos KM (2001), "Nonlinear Model-Building of a Low-Power Gas Turbine", Periodica Polytechnica Ser. Transportation Engineering. Vol. 29, pp. 117-135.
[BibTeX] |
BibTeX:
@article{Ailer2001, author = {P. Ailer and I. Sánta and G. Szederkényi and K. M. Hangos}, title = {Nonlinear Model-Building of a Low-Power Gas Turbine}, journal = {Periodica Polytechnica Ser. Transportation Engineering}, year = {2001}, volume = {29}, pages = {117--135} } |
Ailer P, Szederkényi G and Hangos KM (2002), "Model-Based Nonlinear Control of a Low-Power Gas Turbine", In Proceedings of the "15th IFAC World Congress on Automatic Control". Barcelona, Spain Elsevier Science.
[BibTeX] |
BibTeX:
@conference{Ailer2002, author = {P. Ailer and G. Szederkényi and K. M. Hangos}, editor = {E. F. Camacho and L. Basanez and J.A. de la Puente}, title = {Model-Based Nonlinear Control of a Low-Power Gas Turbine}, booktitle = {Proceedings of the "15th IFAC World Congress on Automatic Control"}, publisher = {Elsevier Science}, year = {2002} } |
Ailer P, Szederkényi G and Hangos KM (2002), "Parameter-estimation and Model Validation of a Low-Power Gas Turbine", In IASTED International Conference on Modeling, Identification and Control -- MIC'2002. Innsbruck, Austria , pp. 604-609. ACTA Press.
[BibTeX] |
BibTeX:
@conference{Ailer2002a, author = {P. Ailer and G. Szederkényi and K. M. Hangos}, editor = {M. H. Hamza}, title = {Parameter-estimation and Model Validation of a Low-Power Gas Turbine}, booktitle = {IASTED International Conference on Modeling, Identification and Control -- MIC'2002}, publisher = {ACTA Press}, year = {2002}, pages = {604--609} } |
Ailer P, Szederkényi G and Hangos KM (2003), "Nonlinear Control of a Low-Power Gas Turbine Based on Input-Output Linearization", In Proceedings of the $4^th$ International Workshop "Information Technologies and Control". Spa Libverda, Czech Republic , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Ailer2003.emphInCD, author = {P. Ailer and G. Szederkényi and K. M. Hangos}, title = {Nonlinear Control of a Low-Power Gas Turbine Based on Input-Output Linearization}, booktitle = {Proceedings of the $4^th$ International Workshop "Information Technologies and Control"}, year = {2003}, pages = {on CD} } |
Ailer P, Szederkényi G and Hangos K (2002), "LPV-modeling of a low-power gas turbine", In Proceedings of the Mini Conference of Vehicle System Dynamics, Identification and Anomalies. , pp. 511-519.
[BibTeX] |
BibTeX:
@conference{Ailer2002b, author = {P. Ailer and G. Szederkényi and K.M. Hangos}, title = {LPV-modeling of a low-power gas turbine}, booktitle = {Proceedings of the Mini Conference of Vehicle System Dynamics, Identification and Anomalies}, year = {2002}, pages = {511--519} } |
Ailer P, Szederkényi G and Hangos KM (2001), "Modeling and Nonlinear Analysis of a Low-Power Gas Turbine" Budapest, Hungary (SCL-01-2001)
[BibTeX] |
BibTeX:
@techreport{Ailer2001a, author = {P. Ailer and G. Szederkényi and K. M. Hangos}, title = {Modeling and Nonlinear Analysis of a Low-Power Gas Turbine}, year = {2001}, number = {SCL-01-2001} } |
Alonso AA and Szederkényi G (2016), "Uniqueness of feasible equilibria for mass action law (MAL) kinetic systems", Journal of Process Control., dec, 2016. Vol. 48, pp. 41-71. Elsevier BV. |
BibTeX:
@article{Alonso2016, author = {A. A. Alonso and G. Szederkényi}, title = {Uniqueness of feasible equilibria for mass action law (MAL) kinetic systems}, journal = {Journal of Process Control}, publisher = {Elsevier BV}, year = {2016}, volume = {48}, pages = {41--71}, doi = {10.1016/j.jprocont.2016.10.002} } |
Alonso AA and Szederkényi G (2012), "On the Geometry of Equilibrium Solutions of Kinetic Systems Obeying the Mass Action Law", In 8th IFAC International Symposium on Advanced Control of Chemical Processes -- ADCHEM 2012, 10-13 July, Singapore. , pp. 469-474. |
Abstract: In this contribution the problem relating dynamic behavior and parameter values for weakly reversible chemical reaction networks (CRNs) that obey the mass action law is revisited. The approach is founded on previous methods and results discussed in [15-16] for weakly reversible CRNs. Two new research directions are however undertaken in this study, one of them exploits an alternative factorization of the Kernel of the Kirchhoff matrix which in a natural way links complex balance with zero deficiency. The other one intends to use the convex structure of the so-called family of solutions described in [15] on the space of reaction channels. |
BibTeX:
@conference{Alonso2012, author = {A. A. Alonso and G. Szederkényi}, title = {On the Geometry of Equilibrium Solutions of Kinetic Systems Obeying the Mass Action Law}, booktitle = {8th IFAC International Symposium on Advanced Control of Chemical Processes -- ADCHEM 2012, 10-13 July, Singapore}, year = {2012}, pages = {469-474}, doi = {10.3182/20120710-4-SG-2026.00089} } |
Baier T, Petz D, Hangos K and Magyar A (2007), "Comparison of some methods of quantum state estimation", In Proceedings of the 26th Quantum Probability and Infinite Dimensional Analysis Conference. Levico, Italy Vol. ISBN-13 978-981-270-851-9, ISBN-10 981-270-851-0, pp. 64-78.
[BibTeX] |
BibTeX:
@inproceedings{Baier2007, author = {Th. Baier and D. Petz and K.M. Hangos and A. Magyar}, editor = {L. Accardi and W. Freudenberg and M. Schürmann}, title = {Comparison of some methods of quantum state estimation}, booktitle = {Proceedings of the 26th Quantum Probability and Infinite Dimensional Analysis Conference}, year = {2007}, volume = {ISBN-13 978-981-270-851-9, ISBN-10 981-270-851-0}, pages = {64-78} } |
Balló G and Hangos KM (2012), "Convex Optimization-Based Parameter Estimation and Experiment Design for Pauli Channels", IEEE Transactions on Automatic Control. Vol. 57(8), pp. 2056-2061. |
BibTeX:
@article{Ballo2012, author = {G. Balló and K. M. Hangos}, title = {Convex Optimization-Based Parameter Estimation and Experiment Design for Pauli Channels}, journal = {IEEE Transactions on Automatic Control}, year = {2012}, volume = {57}, number = {8}, pages = {2056-2061}, doi = {10.1109/TAC.2012.2195835} } |
Balló G and Hangos KM (2011), "Experiment design for Pauli channel estimation", In 18th IFAC World Congress, Milano, Italy, August 28 - September 2. , pp. 4344-4349. |
BibTeX:
@conference{Ballo2011, author = {G. Balló and K. M. Hangos}, title = {Experiment design for Pauli channel estimation}, booktitle = {18th IFAC World Congress, Milano, Italy, August 28 - September 2}, year = {2011}, pages = {4344-4349} } |
Balló G, Magyar A and Hangos KM (2010), "Parameter estimation of quantum processes using convex optimization", In Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems -- MTNS 2010, 5--9 July, 2010, Budapest, Hungary. (ISBN 978-963-311-370-7), pp. 2043-2050. |
BibTeX:
@conference{Ballo2010, author = {Balló, G. and Magyar, A. and Hangos, K. M.}, title = {Parameter estimation of quantum processes using convex optimization}, booktitle = {Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems -- MTNS 2010, 5--9 July, 2010, Budapest, Hungary}, year = {2010}, number = {ISBN 978-963-311-370-7}, pages = {2043-2050} } |
Cameron I, Ingram G and Hangos K (2006), "Multiscale Process Modeling", In Computer Aided Process and Product Engineering. (ISBN 3-527-30804-0), pp. 198-221. Wiley-VCH.
[BibTeX] |
BibTeX:
@incollection{Cameron2006, author = {I.T. Cameron and G.D. Ingram and K.M. Hangos}, editor = {L. Puigjaner, G. Heyen}, title = {Multiscale Process Modeling}, booktitle = {Computer Aided Process and Product Engineering}, publisher = {Wiley-VCH}, year = {2006}, number = {ISBN 3-527-30804-0}, pages = {198-221} } |
Cameron I, Seligmann B, Hangos K, Németh E and Lakner R (2008), "A functional systems approach to the development of improved hazard identification for advanced diagnostic systems", In 18th European Symposium on Computer Aided Process Engineering, ESCAPE 18. , pp. FP-00463. |
BibTeX:
@conference{Cameron2008, author = {I.T. Cameron and B. Seligmann and K.M. Hangos and E. Németh and R. Lakner}, editor = {B. Braunschweig and X. Joulia}, title = {A functional systems approach to the development of improved hazard identification for advanced diagnostic systems}, booktitle = {18th European Symposium on Computer Aided Process Engineering, ESCAPE 18}, year = {2008}, pages = {FP-00463} } |
Csercsik D (2016), "Competition and cooperation in a bidding model of electrical energy trade", Networks and Spatial Economics. Vol. to appear, pp. accepted. |
BibTeX:
@article{Csercsik2016a, author = {D. Csercsik}, title = {Competition and cooperation in a bidding model of electrical energy trade}, journal = {Networks and Spatial Economics}, year = {2016}, volume = {to appear}, pages = {accepted}, doi = {10.1007/s11067-015-9310-x} } |
Csercsik D (2016), "A one-sided flow based combinatorial auction electricity market model", WSEAS Transactions on Power Systems. Vol. to appear, pp. accepted. |
BibTeX:
@article{Csercsik2016b, author = {D. Csercsik}, title = {A one-sided flow based combinatorial auction electricity market model}, journal = {WSEAS Transactions on Power Systems}, year = {2016}, volume = {to appear}, pages = {accepted} } |
Csercsik D (2015), "Lying generators: manipulability of centralized payoff mechanisms in electrical energy trade", Central European Journal of Operations Research. Vol. in press, pp. to appear. |
BibTeX:
@article{Csercsik2015a, author = {D. Csercsik}, title = {Lying generators: manipulability of centralized payoff mechanisms in electrical energy trade}, journal = {Central European Journal of Operations Research}, year = {2015}, volume = {in press}, pages = {to appear}, doi = {10.1007/s10100-015-0387-6} } |
Csercsik D (2010), "Impulsive model of bursting GnRH neurons", In 11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary. Vol. ISBN 978-615-5044-00-7, pp. 20-25. |
BibTeX:
@conference{Csercsik2010b, author = {Csercsik, D.}, title = {Impulsive model of bursting GnRH neurons}, booktitle = {11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary}, year = {2010}, volume = {ISBN 978-615-5044-00-7}, pages = {20-25} } |
Csercsik D (2006), "Construction of simple dynamic models of the gamma-loop mechanism" |
BibTeX:
@techreport{Csercsik2006b, author = {D. Csercsik}, title = {Construction of simple dynamic models of the gamma-loop mechanism}, year = {2006} } |
Csercsik D, Farkas I, Hrabovszky E and Liposits Z (2012), "A simple integrative electrophysiological model of bursting GnRH neurons", Journal of Computational Neuroscience. Vol. 32, pp. 119-136. |
BibTeX:
@article{Csercsik2012b, author = {D. Csercsik and I. Farkas and E. Hrabovszky and Z. Liposits}, title = {A simple integrative electrophysiological model of bursting GnRH neurons}, journal = {Journal of Computational Neuroscience}, year = {2012}, volume = {32}, pages = {119-136}, note = {IF: 2.325 (2010)}, doi = {10.1007/s10827-011-0343-y} } |
Csercsik D, Farkas I, Szederkényi G, Hrabovszky E, Liposits Z and Hangos KM (2010), "Hodgkin–Huxley type modelling and parameter estimation of GnRH neurons", Biosystems. Vol. 100, pp. 198-207. |
Abstract: In this paper a simple one compartment Hodgkin–Huxley type electrophysiological model of GnRH neurons is presented, that is able to reasonably reproduce the most important qualitative features of the firing pattern, such as baseline potential, depolarization amplitudes, sub-baseline hyperpolarization phenomenon and average firing frequency in response to excitatory current. In addition, the same model provides an acceptable numerical fit of voltage clamp (VC) measurement results. The parameters of the model have been estimated using averaged VC traces, and characteristic values of measured current clamp traces originating from GnRH neurons in hypothalamic slices. The resulting parameter values show a good agreement with literature data in most of the cases. Applying parametric changes, which lead to the increase of baseline potential and enhance cell excitability, the model becomes capable of bursting. The effects of various parameters to burst length have been analyzed by simulation. |
BibTeX:
@article{Csercsik2010, author = {D. Csercsik and I. Farkas and G. Szederkényi and E. Hrabovszky and Z. Liposits and K. M. Hangos}, title = {Hodgkin–Huxley type modelling and parameter estimation of GnRH neurons}, journal = {Biosystems}, year = {2010}, volume = {100}, pages = {198-207}, doi = {10.1016/j.biosystems.2010.03.004} } |
Csercsik D and Habis H (2015), "Cooperation with externalities and uncertainty", Networks and Spatial Economics. Vol. 15, pp. 1-16. |
BibTeX:
@article{Csercsik2015, author = {D. Csercsik and H. Habis}, title = {Cooperation with externalities and uncertainty}, journal = {Networks and Spatial Economics}, year = {2015}, volume = {15}, pages = {1-16}, doi = {10.1007/s11067-014-9265-3} } |
Csercsik D and Hangos K (2007), "Nonlinear lumping of cascade activation reactions" (SCL-003/2007) |
BibTeX:
@techreport{Csercsik2007, author = {D. Csercsik and K.M. Hangos}, title = {Nonlinear lumping of cascade activation reactions}, year = {2007}, number = {SCL-003/2007} } |
Csercsik D, Hangos K and Nagy G (2008), "Reaction kinetic models of rapid (g-protein dependent) and slow (beta-arrestin dependent) transmission", In Proc. IBRO International Workshop on Complex Neural Networks "From synaptic transmission to seeing the brain in action". Debrecen, Hungary, 24-26 January, 2008. |
BibTeX:
@conference{Csercsik2008a, author = {D. Csercsik and K.M. Hangos and Gy.M. Nagy}, title = {Reaction kinetic models of rapid (g-protein dependent) and slow (beta-arrestin dependent) transmission}, booktitle = {Proc. IBRO International Workshop on Complex Neural Networks "From synaptic transmission to seeing the brain in action"}, year = {2008} } |
Csercsik D, Hangos K and Nagy G (2008), "A simple reaction kinetic model of rapid (G protein dependent) and slow (b-Arrestin dependent) transmission", Journal of Theoretical Biology. Vol. 255, pp. 119-128. |
Abstract: In this paper the qualitative dynamic behavior of reaction kinetic models of G protein signaling is examined. A simplified basic G protein signaling structure is defined, which is extended to be able to take the effect of slow transmission, RGS mediated feedback regulation and ERK-phosphatase mediated feedback regulation into account. The resulting model gives rise to an acceptable qualitative approximation of the G protein dependent and independent ERK activation dynamics that is in good agreement with the experimentally observed behavior. |
BibTeX:
@article{Csercsik2008c, author = {D. Csercsik and K.M. Hangos and G.M. Nagy}, title = {A simple reaction kinetic model of rapid (G protein dependent) and slow (b-Arrestin dependent) transmission}, journal = {Journal of Theoretical Biology}, year = {2008}, volume = {255}, pages = {119-128}, doi = {10.1016/j.jtbi.2008.07.032} } |
Csercsik D and Hangos KM (2012), "Model Structure Validation of Cell Signaling Pathways using Colored Petri Nets", In Preprints of the 8th IFAC Symposium on Advanced Control of Chemical Processes, Singapore, July 10-12. Singapore, July 10-13, 2012. , pp. 463-468. The International Federation of Automatic Control (IFAC)The International Federation of Automatic Control. |
BibTeX:
@conference{Csercsik2012c, author = {D. Csercsik and K. M. Hangos}, title = {Model Structure Validation of Cell Signaling Pathways using Colored Petri Nets}, booktitle = {Preprints of the 8th IFAC Symposium on Advanced Control of Chemical Processes, Singapore, July 10-12}, publisher = {The International Federation of Automatic Control (IFAC)The International Federation of Automatic Control}, year = {2012}, pages = {463-468} } |
Csercsik D, Hangos KM and Szederkényi G (2012), "Identifiability analysis and parameter estimation of a single Hodgkin-Huxley type voltage dependent ion channel under voltage step measurement conditions", Neurocomputing. Vol. 77, pp. 178-188. |
Abstract: In this article the identifiability analysis of a single Hodgkin-Huxley (HH) type voltage dependent ion channel model under voltage clamp circumstances is performed. According to the results of the identifiability analysis, the two steady-state parameters ($m_, $h_) and the conductance ($g$) are not globally identifiable. Moreover, no pair from these three parameters is identifiable. Based on the results of the identifiability analysis, a novel optimization-based identification method is proposed and demonstrated on in silico data. The proposed method is based on the decomposition of the parameter estimation problem into two parts. The results of the article are used to formulate explicit criteria for the design of voltage clamp protocols. |
BibTeX:
@article{Csercsik2012, author = {D. Csercsik and K. M. Hangos and G. Szederkényi}, title = {Identifiability analysis and parameter estimation of a single Hodgkin-Huxley type voltage dependent ion channel under voltage step measurement conditions}, journal = {Neurocomputing}, year = {2012}, volume = {77}, pages = {178-188}, doi = {10.1016/j.neucom.2011.09.006} } |
Csercsik D and Imre S (2016), "Cooperation and coalitional stability in decentralized wireless networks", Telecommunication Systems. Vol. to appear, pp. accepted. |
BibTeX:
@article{Csercsik2016, author = {D. Csercsik and S. Imre}, title = {Cooperation and coalitional stability in decentralized wireless networks}, journal = {Telecommunication Systems}, year = {2016}, volume = {to appear}, pages = {accepted}, doi = {10.1007/s11235-016-0193-z} } |
Csercsik D and Imre S (2015), "Position guided local routing and reconfiguration in mobile telecommunication networks with scale-free topology", In 23rd Mediterranean Conference on Control and Automation, MED 2015, 06. 16. - 06. 19. 2015, Torremolinos, Spain. , pp. 987-992. |
BibTeX:
@conference{Csercsik2015b, author = {D. Csercsik and S. Imre}, title = {Position guided local routing and reconfiguration in mobile telecommunication networks with scale-free topology}, booktitle = {23rd Mediterranean Conference on Control and Automation, MED 2015, 06. 16. - 06. 19. 2015, Torremolinos, Spain}, year = {2015}, pages = {987-992} } |
Csercsik D and Imre S (2013), "Comparison of router intelligent and cooperative host intelligent algorithms in a continuous model of fixed telecommunication networks", International Journal of Communication Engineering., In World Academy of Science, Engineering and Technology. Vol. 7(9), pp. 333-340. |
BibTeX:
@article{Csercsik2013b, author = {D. Csercsik and S. Imre}, title = {Comparison of router intelligent and cooperative host intelligent algorithms in a continuous model of fixed telecommunication networks}, booktitle = {World Academy of Science, Engineering and Technology}, journal = {International Journal of Communication Engineering}, year = {2013}, volume = {7}, number = {9}, pages = {333-340}, note = {ISSN: 0988-0341E} } |
Csercsik D, Szederkényi G and Hangos KM (2010), "Modelling of Rapid and Slow Transmission Using the Theory of Reaction Kinetic Networks", ERCIM News. Vol. 82, pp. 22-23. |
BibTeX:
@article{Csercsik2010c, author = {Csercsik, D. and Szederkényi, G. and Hangos, K. M.}, title = {Modelling of Rapid and Slow Transmission Using the Theory of Reaction Kinetic Networks}, journal = {ERCIM News}, year = {2010}, volume = {82}, pages = {22--23} } |
Csercsik D and Szederkényi G (2013), "Realization theory as a tool of stability analysis for kinetic systems", In Proc. of the IASTED International Conference Control and Applications (CA 2013), August 26-28, Honolulu, USA. , pp. 805.071. |
BibTeX:
@conference{Csercsik2013, author = {D. Csercsik and G. Szederkényi}, editor = {M. H. Hamza}, title = {Realization theory as a tool of stability analysis for kinetic systems}, booktitle = {Proc. of the IASTED International Conference Control and Applications (CA 2013), August 26-28, Honolulu, USA}, year = {2013}, pages = {805.071}, note = {ISBN (CD): 978-0-88986-958-5}, doi = {10.2316/P.2013.805-071} } |
Csercsik D and Szederkényi G (2013), "ATP production optimization in biochemical mass action models with protein turnover", In IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France. , pp. 42-47. |
BibTeX:
@conference{Csercsik2013a, author = {D. Csercsik and G. Szederkényi}, editor = {B. E. Ydstie and B. Maschke and D. Dochain}, title = {ATP production optimization in biochemical mass action models with protein turnover}, booktitle = {IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France}, year = {2013}, pages = {42-47}, note = {ISBN: 978-3-902823-40-3}, doi = {10.3182/20130714-3-FR-4040.00017} } |
Csercsik D and Szederkényi G (2014), "Parametric analysis of dynamically equivalent reaction network models", In 22nd Mediterranean Conference on Control and Automation, MED 2014, 06. 16. - 06. 19. 2015, Palermo, Italy. |
BibTeX:
@conference{Csercsik2014, author = {D. Csercsik and G. Szederkényi}, title = {Parametric analysis of dynamically equivalent reaction network models}, booktitle = {22nd Mediterranean Conference on Control and Automation, MED 2014, 06. 16. - 06. 19. 2015, Palermo, Italy}, year = {2014} } |
Csercsik D and Szederkényi G (2006), "Cascade control methods of a simple nonlinear limb model", In 7th International PhD Workshop. Hruba Skala, Czech Republic (ISBN: 80-903834-1-6), pp. on CD.
[BibTeX] |
BibTeX:
@conference{Csercsik2006a, author = {D. Csercsik and G. Szederkényi}, title = {Cascade control methods of a simple nonlinear limb model}, booktitle = {7th International PhD Workshop}, year = {2006}, number = {ISBN: 80-903834-1-6}, pages = {on CD} } |
Csercsik D and Szederkényi G (2006), "Cascade stabilization of a simple nonlinear limb model" |
BibTeX:
@techreport{Csercsik2006c, author = {D. Csercsik and G Szederkényi}, title = {Cascade stabilization of a simple nonlinear limb model}, year = {2006} } |
Csercsik D, Szederkényi G and Hangos K (2008), "Determining flat outputs of MIMO nolinear systems using directed graphs", In 8th Portuguese Conference on Automatic Control - CONTROLO'2008. , pp. 450-455. |
BibTeX:
@conference{Csercsik2008, author = {D. Csercsik and G. Szederkényi and K.M. Hangos}, title = {Determining flat outputs of MIMO nolinear systems using directed graphs}, booktitle = {8th Portuguese Conference on Automatic Control - CONTROLO'2008}, year = {2008}, pages = {450-455} } |
Csercsik D, Szederkényi G and Hangos K (2007), "Cascade stabilization and reference tracking of a simple nonlinear limb model", In 26th IASTED International Conference on Modeling, Identification, and Control - MIC 2007. Innsbruck, Austria , pp. 369-374. Acta Press.
[BibTeX] |
BibTeX:
@conference{Csercsik2007a, author = {D. Csercsik and G. Szederkényi and K.M. Hangos}, title = {Cascade stabilization and reference tracking of a simple nonlinear limb model}, booktitle = {26th IASTED International Conference on Modeling, Identification, and Control - MIC 2007}, publisher = {Acta Press}, year = {2007}, pages = {369--374}, note = {ISBN 978-0-88896-633-1 / 978-0-88986-635-5.} } |
Csercsik D, Szederkényi G, Hangos K and Farkas I (2008), "Parameter Estimation of Hodgkin-Huxley model of GnRH neurons", In 9th International PhD Workshop on Systems and Control. Izola, Slovenia, Oct 1-3, 2008. |
BibTeX:
@conference{Csercsik2008b, author = {D. Csercsik and G. Szederkényi and K.M. Hangos and I. Farkas}, title = {Parameter Estimation of Hodgkin-Huxley model of GnRH neurons}, booktitle = {9th International PhD Workshop on Systems and Control}, year = {2008} } |
Csercsik D, Szederkényi G and Hangos KM (2010), "Identifiability of a Hodgkin-Huxley type ion channel under voltage step measurement conditions", In 9th International Symposium on Dynamics and Control of Process Systems - DYCOPS 2010, Leuven, Belgium, July 5-7. (MoAT3.4), pp. 318-323. |
Abstract: In this paper, we analyze the identifiability properties of a Hodgkin-Huxley (HH) type voltage dependent ion channel model under voltage clamp circumstances. The elimination of the differential variables is performed, and the identifiability of various parameters is analyzed using the differential algebra approach and the algorithm based on the Taylor series expansion of the output. It is shown that the model is structurally non-identifiable using certain commonly applied parametrizations, and hidden dependences between physical parameters are unravelled. Using the results of the identifiability analysis, physically meaningful examples are shown when the model parameters are different but the system outputs are identical. |
BibTeX:
@conference{Csercsik2010a, author = {D. Csercsik and G. Szederkényi and K. M. Hangos}, editor = {M. Kothare and M. Tade and A. Vande Wouwer and I. Smets}, title = {Identifiability of a Hodgkin-Huxley type ion channel under voltage step measurement conditions}, booktitle = {9th International Symposium on Dynamics and Control of Process Systems - DYCOPS 2010, Leuven, Belgium, July 5-7}, year = {2010}, number = {MoAT3.4}, pages = {318-323} } |
Csercsik D, Szederkényi G and Hangos KM (2012), "Parametric uniqueness of deficiency zero reaction networks", Journal of Mathematical Chemistry. Vol. 50, pp. 1-8. |
Abstract: In this paper it is shown that deficiency zero mass action reaction networks containing one terminal linkage class are parametrically and therefore structurally unique with a fixed complex set. Clearly, weakly reversible deficiency zero networks with one linkage class belong to this class. However, it is shown through an illustrative example that deficiency zero networks with several linkage classes can have multiple dynamically equivalent realizations, even if the individual linkage classes are weakly reversible. |
BibTeX:
@article{Csercsik2012a, author = {D. Csercsik and G. Szederkényi and K. M. Hangos}, title = {Parametric uniqueness of deficiency zero reaction networks}, journal = {Journal of Mathematical Chemistry}, year = {2012}, volume = {50}, pages = {1-8}, doi = {10.1007/s10910-011-9902-8} } |
Csercsik D, Szederkényi G, Hangos KM and Farkas I (2009), "Model synthesis and identification of a Hodgkin-Huxley-type GnRH neuron model", In Proceedings of the European Control Conference, Budapest, Hungary. , pp. 3058-3063. |
BibTeX:
@conference{Csercsik2009, author = {D. Csercsik and G. Szederkényi and K. M. Hangos and I. Farkas}, title = {Model synthesis and identification of a Hodgkin-Huxley-type GnRH neuron model}, booktitle = {Proceedings of the European Control Conference, Budapest, Hungary}, year = {2009}, pages = {3058-3063}, note = {ISBN: 978-963-311-369-1} } |
Csercsik D, Szederkényi G, Hangos KM and Farkas I (2009), "Dynamical Modeling and Identification of a GnRH neuron", In 7th IFAC Symposium on Modelling and Control in Biomedical Systems. Aalborg, Denmark, 12-14 August, 2009. , pp. 437-442. |
BibTeX:
@conference{Csercsik2009a, author = {D. Csercsik and G. Szederkényi and K. M. Hangos and I. Farkas}, title = {Dynamical Modeling and Identification of a GnRH neuron}, booktitle = {7th IFAC Symposium on Modelling and Control in Biomedical Systems}, year = {2009}, pages = {437-442} } |
Csikós A, Varga I and Hangos K (2014), "Motorway control system for the reduction of pollutant concentrations in local rural areas", In 22nd Mediterranean Conference on Control and Automation, Palermo (italy), 16-19 June 2014. |
BibTeX:
@conference{Csikos2014, author = {A. Csikós and I. Varga and K.M. Hangos}, title = {Motorway control system for the reduction of pollutant concentrations in local rural areas}, booktitle = {22nd Mediterranean Conference on Control and Automation, Palermo (italy), 16-19 June 2014}, year = {2014} } |
Csikós A, Varga I and Hangos K (2013), "Freeway shockwave control using ramp metering and variable speed limits", In 21st Mediterranean Conference on Control and Automation (MED'13), June 25-28, Crete. , pp. 1569-1574. |
BibTeX:
@conference{Csikos2013, author = {Csikós, A. and Varga, I. and Hangos, K.M.}, title = {Freeway shockwave control using ramp metering and variable speed limits}, booktitle = {21st Mediterranean Conference on Control and Automation (MED'13), June 25-28, Crete}, year = {2013}, pages = {1569-1574} } |
Csikós A, Varga I and Hangos KM (2015), "Modeling of the dispersion of motorway traffic emission for control purposes", Transportation Research Part C - Emerging Technologies. Vol. 58, pp. 598-616. |
BibTeX:
@article{Csikos2015, author = {A. Csikós and I. Varga and K. M. Hangos}, title = {Modeling of the dispersion of motorway traffic emission for control purposes}, journal = {Transportation Research Part C - Emerging Technologies}, year = {2015}, volume = {58}, pages = {598-616}, doi = {10.1016/j.trc.2015.03.027} } |
Dulai T, Werner-Stark A and Hangos KM (2013), "Immediate event-aware model and algorithm of a general scheduler", Hungarian Journal of Industry and Chemistry. Vol. 41(1), pp. 27-34.
[BibTeX] |
BibTeX:
@article{Dulai2013, author = {T. Dulai and A. Werner-Stark and K. M. Hangos}, title = {Immediate event-aware model and algorithm of a general scheduler}, journal = {Hungarian Journal of Industry and Chemistry}, year = {2013}, volume = {41}, number = {1}, pages = {27-34} } |
Eged K, Kis Z, Kanyár B and Szederkényi G (2000), "A critical review of experimental, field and modeling information on the transfer of radionuclides to fruits; description of the RUVFRU model (I)"
[BibTeX] |
BibTeX:
@techreport{Eged2000, author = {K. Eged and Z. Kis and B. Kanyár and G. Szederkényi}, title = {A critical review of experimental, field and modeling information on the transfer of radionuclides to fruits; description of the RUVFRU model (I)}, year = {2000} } |
Eged K, Kis Z, Kanyár B and Szederkényi G (2000), "A critical review of experimental, field and modeling information on the transfer of radionuclides to fruits; description of the RUVFRU model (II)"
[BibTeX] |
BibTeX:
@techreport{Eged2000a, author = {K. Eged and Z. Kis and B. Kanyár and G. Szederkényi}, title = {A critical review of experimental, field and modeling information on the transfer of radionuclides to fruits; description of the RUVFRU model (II)}, year = {2000} } |
Eged K, Kis Z, Szederkényi G and Kanyár B (1998), "Planning nuclear countermeasures in the way of optimization of cost", In 23rd Workshop on Radiation Protection, Balatonkenese, Hungary.
[BibTeX] |
BibTeX:
@conference{Eged1998, author = {K. Eged and Z. Kis and G. Szederkényi and B. Kanyár}, title = {Planning nuclear countermeasures in the way of optimization of cost}, booktitle = {23rd Workshop on Radiation Protection, Balatonkenese, Hungary}, year = {1998} } |
Fazekas C (2008), "Modeling and model calibration of complex dynamical systems applied to the primary circuit of a nuclear power plant". Thesis at: University pf Pannonia. |
BibTeX:
@phdthesis{Fazekas2008b, author = {Cs. Fazekas}, title = {Modeling and model calibration of complex dynamical systems applied to the primary circuit of a nuclear power plant}, school = {University pf Pannonia}, year = {2008} } |
Fazekas C, Csercsik D, Szederkényi G and Hangos K (2007), "Simulator for multi-scale musculoskeletal models with reflex circuits", In 6th EUROSIM Congress on Modelling and Simulation. Ljubljana, Slovenia, September, 2007. , pp. on CD. |
BibTeX:
@conference{Fazekas2007a, author = {Cs. Fazekas and D. Csercsik and G. Szederkényi and K.M. Hangos}, title = {Simulator for multi-scale musculoskeletal models with reflex circuits}, booktitle = {6th EUROSIM Congress on Modelling and Simulation}, year = {2007}, pages = {on CD}, note = {ISBN: 978-3-901608-32-2} } |
Fazekas C, Gábor A and Hangos KM (2009), "Modeling and Identification of a Nuclear Reactor with Temperature Dependent Reactivity", In European Control Conference - ECC 2009. , pp. 3509-3514. |
BibTeX:
@conference{Fazekas2009, author = {Cs. Fazekas and A. Gábor and K. M. Hangos}, title = {Modeling and Identification of a Nuclear Reactor with Temperature Dependent Reactivity}, booktitle = {European Control Conference - ECC 2009}, year = {2009}, pages = {3509-3514}, note = {ISBN: 978-963-311-369-1} } |
Fazekas C, Kozmann G and Hangos K (2006), "Biomechanikai rendszerek többlétékű modellezése", IME (Informatika és Menedzsment az Egészségügyben). Vol. V, pp. 3sz.
[BibTeX] |
BibTeX:
@article{Fazekas2006b, author = {Cs. Fazekas and Gy. Kozmann and K.M. Hangos}, title = {Biomechanikai rendszerek többlétékű modellezése}, journal = {IME (Informatika és Menedzsment az Egészségügyben)}, year = {2006}, volume = {V}, pages = {3sz} } |
Fazekas C, Kozmann G and Hangos KM (2007), "Multiscale modeling and time-scale analysis of a human limb", Multiscale Modeling & Simulation. Vol. 6(3), pp. 761-791. |
Abstract: A multiscale modeling approach is proposed in this paper that assists the user in constructing musculoskeletal system models from submodels describing various mechanisms on different levels on the length scale. In addition, dynamic time-scale analysis has been performed on the developed multiscale models of various parts of a human limb: the wrist, elbow, and shoulder have been characterized by different maximal muscle and skeletal length properties. The time-scale analysis results have been represented on a scale map that can be used effectively to direct the simplification of multiscale models for control-related application purposes. |
BibTeX:
@article{Fazekas2007b, author = {Fazekas, C. and Kozmann, G. and Hangos, K. M.}, title = {Multiscale modeling and time-scale analysis of a human limb}, journal = {Multiscale Modeling & Simulation}, year = {2007}, volume = {6}, number = {3}, pages = {761--791}, doi = {10.1137/060665440} } |
Fazekas C, Kozmann G, Magos T and Hangos K (2007), "Parameter estimation of a simple hierarchical arm model" (SCL-002/2007) |
BibTeX:
@techreport{Fazekas2007c, author = {Cs. Fazekas and Gy. Kozmann and T. Magos and K.M. Hangos}, title = {Parameter estimation of a simple hierarchical arm model}, year = {2007}, number = {SCL-002/2007} } |
Fazekas C, Szederkényi G and Hangos K (2008), "Parameter estimation of a simple primary circuit model of a VVER plant", IEEE Transactions on Nuclear Science. Vol. 55(5), pp. 2643-2653. |
Abstract: A simple dynamic model in physical coordinates (an improved version of our model reported in teFazekasEtAl_NED:2007) and the corresponding parameter estimation procedure for the primary circuit dynamics of VVER-type pressurized water reactors is presented in this paper. The primary uses of the model are control oriented dynamic model analysis and high level controller design. The most important requirements of the simple physical model are that it should contain the possible minimal number of differential equations and it should be capable of describing important dynamic phenomena such as load change transients between day and night periods. Furthermore, the estimated parameter values should fall into physically meaningful ranges. The parameter estimation method is based on the decomposition of the overall system model into separably identifiable subsystems. The identification of the subsystems is followed by the fine-tuning of the model parameters with the parameter estimation of the entire system model. The constructed model satisfies the predefined requirements and its response shows good fit to the measurement data that were obtained from three units of the Paks Nuclear Power Plant in Hungary. |
BibTeX:
@article{Fazekas2008, author = {Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {Parameter estimation of a simple primary circuit model of a VVER plant}, journal = {IEEE Transactions on Nuclear Science}, year = {2008}, volume = {55}, number = {5}, pages = {2643--2653}, doi = {10.1109/TNS.2008.2001924} } |
Fazekas C, Szederkényi G and Hangos K (2008), "Identification of the Primary Circuit Dynamics in a Pressurized Water Nuclear Power Plant", In 17th IFAC World Congress, Seoul, Korea. , pp. 10640-10645. |
BibTeX:
@conference{Fazekas2008a, author = {Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {Identification of the Primary Circuit Dynamics in a Pressurized Water Nuclear Power Plant}, booktitle = {17th IFAC World Congress, Seoul, Korea}, year = {2008}, pages = {10640-10645}, note = {ISBN: 978-1-1234-7890-2} } |
Fazekas C, Szederkényi G and Hangos K (2007), "A simple dynamic model of the primary circuit in VVER plants for controller design purposes", Nuclear Engineering and Design. Vol. 237, pp. 1071-1087. |
Abstract: A simple low dimensional nonlinear dynamic model of the primary circuit in a VVER-type nuclear power plant is developed from first engineering principles that is able to capture the most important dynamics of the system in normal operating modes. The model includes the description of the main control loops in the system, too. The model has been verified and validated by using measured data from three VVER-440 units of Paks Nuclear Power Plant in Hungary, and a good fit has been obtained. This qualifies the model to be the basis for the integrated re-design of the primary control loops. |
BibTeX:
@article{Fazekas2006, author = {Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {A simple dynamic model of the primary circuit in VVER plants for controller design purposes}, journal = {Nuclear Engineering and Design}, year = {2007}, volume = {237}, pages = {1071--1087}, doi = {10.1016/j.nucengdes.2006.12.002} } |
Fazekas C, Szederkényi G and Hangos K (2007), "Model identification of the primary circuit at the Paks Nuclear Power Plant", In 26th IASTED International Conference on Modeling, Identification, and Control - MIC 2007. Innsbruck, Austria , pp. 464-469. Acta Press. |
BibTeX:
@conference{Fazekas2007, author = {Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {Model identification of the primary circuit at the Paks Nuclear Power Plant}, booktitle = {26th IASTED International Conference on Modeling, Identification, and Control - MIC 2007}, publisher = {Acta Press}, year = {2007}, pages = {464--469}, note = {ISBN 978-0-88896-633-1 / 978-0-88986-635-5} } |
Fazekas C, Szederkényi G and Hangos K (2006), "Linear and nonlinear control of musculoskeletal systems", In 25th IASTED International Conference, Modeling, Identification, and Control - MIC 2006. Lanzarote, Spain, February, 2006. , pp. 219-224. |
BibTeX:
@conference{Fazekas2006a, author = {Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {Linear and nonlinear control of musculoskeletal systems}, booktitle = {25th IASTED International Conference, Modeling, Identification, and Control - MIC 2006}, year = {2006}, pages = {219--224} } |
Fazekas C, Szederkényi G and Hangos KM (2007), "A simple dynamic model of the primary circuit in VVER plants for controller design purposes and its parameter estimation", In Proceedings of the 8th International PhD Workshop on Systems and Control. Balatonfüred, Hungary. , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Fazekas2007d, author = {Cs. Fazekas and G. Szederkényi and K. M. Hangos}, title = {A simple dynamic model of the primary circuit in VVER plants for controller design purposes and its parameter estimation}, booktitle = {Proceedings of the 8th International PhD Workshop on Systems and Control. Balatonfüred, Hungary}, year = {2007}, pages = {on CD} } |
Fodor A, Bálint R, Magyar A and Szederkényi G (2014), "Stability and Parameter Sensitivity Analysis of an Induction Motor", Hungarian Journal of Industry and Chemistry. Vol. 42, pp. 109-113. |
BibTeX:
@article{Fodor2014, author = {A. Fodor and R. Bálint and A. Magyar and G. Szederkényi}, title = {Stability and Parameter Sensitivity Analysis of an Induction Motor}, journal = {Hungarian Journal of Industry and Chemistry}, year = {2014}, volume = {42}, pages = {109-113} } |
Fodor A, Magyar A and Hangos K (2012), "MIMO LQ control of the energy production of a synchronous generator in a nuclear power plant", Chemical Engineering Transactions. Vol. 29, pp. 361-366. |
BibTeX:
@article{Fodor2012a, author = {A. Fodor and A. Magyar and K.M. Hangos}, title = {MIMO LQ control of the energy production of a synchronous generator in a nuclear power plant}, journal = {Chemical Engineering Transactions}, year = {2012}, volume = {29}, pages = {361-366} } |
Fodor A, Magyar A and Hangos KM (2014), "Multiple-Input–Multiple-Output Linear-Quadratic Control of the Energy Production of a Synchronous Generator in a Nuclear Power Plant", Electric Power Components and Systems. Vol. 42(15), pp. 1673-1682. |
BibTeX:
@article{Fodor2014a, author = {A. Fodor and A. Magyar and K. M. Hangos}, title = {Multiple-Input–Multiple-Output Linear-Quadratic Control of the Energy Production of a Synchronous Generator in a Nuclear Power Plant}, journal = {Electric Power Components and Systems}, year = {2014}, volume = {42}, number = {15}, pages = {1673-1682}, doi = {10.1080/15325008.2014.950359} } |
Fodor A, Magyar A and Hangos KM (2012), "Control-oriented modeling of the energy-production of a synchronous generator in a nuclear power plant", Energy. Vol. 39, pp. 135-145. |
BibTeX:
@article{Fodor2012, author = {A. Fodor and A. Magyar and K. M. Hangos}, title = {Control-oriented modeling of the energy-production of a synchronous generator in a nuclear power plant}, journal = {Energy}, year = {2012}, volume = {39}, pages = {135-145}, doi = {10.1016/j.energy.2012.01.054} } |
Fodor A, Magyar A and Hangos KM (2011), "Parameter sensitivity analysis of a synchronous generator", Hungarian Journal of Industrial Chemistry. Vol. 38, pp. 21-26. |
BibTeX:
@article{Fodor2011, author = {A. Fodor and A. Magyar and K. M. Hangos}, title = {Parameter sensitivity analysis of a synchronous generator}, journal = {Hungarian Journal of Industrial Chemistry}, year = {2011}, volume = {38}, pages = {21-26} } |
Fodor A, Magyar A and Hangos KM (2010), "Dynamic Modeling and Model Analysis of a Large Industrial Synchronous Generator, 8-9 Sept. 2010, Pilsen,", In IEEE Applied Electronics Conference. Vol. ISBN: 978-80-7043-865-7(INSPEC Accession Number: 11579485), pp. 1-6. |
BibTeX:
@conference{Fodor2010, author = {Fodor, A. and Magyar, A. and Hangos, K. M.}, title = {Dynamic Modeling and Model Analysis of a Large Industrial Synchronous Generator, 8-9 Sept. 2010, Pilsen,}, booktitle = {IEEE Applied Electronics Conference}, year = {2010}, volume = {ISBN: 978-80-7043-865-7}, number = {INSPEC Accession Number: 11579485}, pages = {1-6} } |
Fodor A, Magyar A and Hangos KM (2010), "Parameter Sensitivity Analysis of an Industrial Synchronous Generator", In 11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary. Vol. ISBN 978-615-5044-00-7, pp. 2-10. |
BibTeX:
@conference{Fodor2010a, author = {Fodor, A. and Magyar, A. and Hangos, K. M.}, title = {Parameter Sensitivity Analysis of an Industrial Synchronous Generator}, booktitle = {11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary}, year = {2010}, volume = {ISBN 978-615-5044-00-7}, pages = {2-10} } |
Fodor A, Magyar A and Hangos KM (2009), "Dynamic Modeling and Analysis of a Synchronous Generator in a Nuclear Power Plant", In 10th International PhD Workshop on Systems and Control, paper 104, Hluboka nad Vltavou, Czech Republic, September 22-26. |
BibTeX:
@conference{Fodor2009, author = {A. Fodor and A. Magyar and K. M. Hangos}, title = {Dynamic Modeling and Analysis of a Synchronous Generator in a Nuclear Power Plant}, booktitle = {10th International PhD Workshop on Systems and Control, paper 104, Hluboka nad Vltavou, Czech Republic, September 22-26}, year = {2009} } |
Gábor A, Hangos KM and Szederkényi G (2010), "Modeling and Identification of the Pressurizer of a VVER Nuclear Reactor for Controller Design Purposes", In 11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary. Vol. ISBN 978-615-5044-00-7, pp. 11-19. |
BibTeX:
@conference{Gabor2010, author = {Gábor, A. and Hangos, K. M. and Szederkényi, G.}, title = {Modeling and Identification of the Pressurizer of a VVER Nuclear Reactor for Controller Design Purposes}, booktitle = {11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary}, year = {2010}, volume = {ISBN 978-615-5044-00-7}, pages = {11-19} } |
Gábor A, Fazekas C, Szederkényi G and Hangos KM (2011), "Modeling and Identification of a Nuclear Reactor with Temperature Effects and Xenon Posioning", European Journal of Control. Vol. 17, pp. 104-115. |
Abstract: This paper presents the modeling and identification procedure for a VVER-type pressurized water reactor. The modeling goal is to produce a mathematical description in nonlinear state-space form that is suitable for control-oriented model analysis and preliminary controller design experiments. The proposed model takes temperature effects and Xenon poisoning into consideration and thus it is an extension of formerly published simpler model structures. Real transient measurement data from the plant has been used for the identification that is based on standard prediction error minimization. It is shown that the model is fairly well identifiable and the newly inserted model components significantly improve the quality of fit between the measured and computed model outputs. Furthermore, the estimated parameter values fall into physically meaningful ranges. |
BibTeX:
@article{Gabor2011, author = {A. Gábor and C. Fazekas and G. Szederkényi and K. M. Hangos}, title = {Modeling and Identification of a Nuclear Reactor with Temperature Effects and Xenon Posioning}, journal = {European Journal of Control}, year = {2011}, volume = {17}, pages = {104-115}, doi = {10.3166/ejc.17.104-115} } |
Gábor A, Fazekas C, Szederkényi G and Hangos KM (2011), "Final comments by the authors for the article: Modeling and identification of a nuclear reactor with temperature effects and xenon poisoning", European Journal of Control. Vol. 17, pp. 119-122. |
BibTeX:
@article{Gabor2011a, author = {A. Gábor and C. Fazekas and G. Szederkényi and K. M. Hangos}, title = {Final comments by the authors for the article: Modeling and identification of a nuclear reactor with temperature effects and xenon poisoning}, journal = {European Journal of Control}, year = {2011}, volume = {17}, pages = {119-122} } |
Gábor A, Fazekas C, Szederkényi G and Hangos KM (2009), "Modeling and Identification of a Nuclear Reactor with Temperature Effects and Xenon Poisoning", In Proceedings of the 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal, November 3-5. , pp. 1647-1652. |
BibTeX:
@conference{Gabor2009, author = {A. Gábor and C. Fazekas and G. Szederkényi and K. M. Hangos}, title = {Modeling and Identification of a Nuclear Reactor with Temperature Effects and Xenon Poisoning}, booktitle = {Proceedings of the 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal, November 3-5}, year = {2009}, pages = {1647-1652} } |
Gábor A, Hangos KM, Banga JR and Szederkényi G (2015), "Reaction network realizations of rational biochemical systems and their structural properties", Journal of Mathematical Chemistry. Vol. 53, pp. 1657-1686. |
BibTeX:
@article{Gabor2015, author = {A. Gábor and K. M. Hangos and J. R. Banga and G. Szederkényi}, title = {Reaction network realizations of rational biochemical systems and their structural properties}, journal = {Journal of Mathematical Chemistry}, year = {2015}, volume = {53}, pages = {1657-1686}, doi = {10.1007/s10910-015-0511-9} } |
Gábor A, Hangos KM and Szederkényi G (2013), "On the Verification and Correction of Large-Scale Kinetic Models in Systems Biology" Vol. 8130, pp. 206-219. Springer. |
BibTeX:
@inbook{Gabor2013, author = {A. Gábor and K. M. Hangos and G. Szederkényi}, editor = {A. Gupta and T. A. Henzinger}, title = {On the Verification and Correction of Large-Scale Kinetic Models in Systems Biology}, publisher = {Springer}, year = {2013}, volume = {8130}, pages = {206-219}, note = {11th International Conference, CMSB 2013, Klosterneuburg, Austria, September 22-24, 2013. Proceedings, ISBN: 978-3-642-40707-9}, doi = {10.1007/978-3-642-40708-6_16} } |
Gábor A, Hangos KM and Szederkényi G (2016), "Linear conjugacy in biochemical reaction networks with rational reaction rates", Journal of Mathematical Chemistry. Vol. 54, pp. 1658-1676. |
BibTeX:
@article{Gabor2016, author = {A. Gábor and K. M. Hangos and G. Szederkényi}, title = {Linear conjugacy in biochemical reaction networks with rational reaction rates}, journal = {Journal of Mathematical Chemistry}, year = {2016}, volume = {54}, pages = {1658-1676}, doi = {10.1007/s10910-016-0642-7} } |
Gábor A, Hannemenn-Tamás R and Hangos K (2012), "Convex mixed integer quadratic program approach to model reduction in chemical reaction networks", In 12th International PhD Workshop on Systems and Control, Veszprem, 2012. aug. 27, University of Pannonia, 2012. (ISBN 978-615-5044-71-7), pp. 1-6 (on CD). University of Pannonia. |
BibTeX:
@conference{Gabor2012, author = {A. Gábor and R. Hannemenn-Tamás and K.M. Hangos}, title = {Convex mixed integer quadratic program approach to model reduction in chemical reaction networks}, booktitle = {12th International PhD Workshop on Systems and Control, Veszprem, 2012. aug. 27, University of Pannonia, 2012}, publisher = {University of Pannonia}, year = {2012}, number = {ISBN 978-615-5044-71-7}, pages = {1-6 (on CD)} } |
Gál IP and Hangos KM (1998), "SDG model-based structures for fault detection", On-Line Fault Detection And Supervision In The Chemical Process Industries 1998., In On-Line Fault Detection And Supervision In The Chemical Process Industries 1998. , pp. 243-248. |
Abstract: A signed directed graph (SDG) model-based approach is given in this paper for fault diagnosis of process systems. The proposed method is modular, the model for fault propagation is built from the mini SDGs of the units driven by the process flowsheet. Thus the fault detection is decomposed into two steps: off-line generation of the SDG model and its rule set equivalent and the step of on-line fault detection. Copyright (C) 1998 IFAC. |
BibTeX:
@conference{Gal1998a, author = {Gál, I. P. and Hangos, K. M.}, title = {SDG model-based structures for fault detection}, booktitle = {On-Line Fault Detection And Supervision In The Chemical Process Industries 1998}, journal = {On-Line Fault Detection And Supervision In The Chemical Process Industries 1998}, year = {1998}, pages = {243--248} } |
Gál IP, Varga JB and Hangos KM (1998), "Integrated structure design of a process and its control system", Journal Of Process Control. Vol. 8(4), pp. 251-263. |
Abstract: A graph-theoretic method for integration of process and control system (IPCS) syntheses with different controllability notions has been proposed in the present paper. The foundation of this integration is a well-established, graph-theoretic approach to process synthesis in conjunction with the analysis of structural controllability based on digraph-type process models. Unambiguous structural representation of the resultant integrated process and control systems, IPXS structures in brief, has been introduced for unambiguous representation of a process structure, it is rendered possible as an extension of the directed bipartite graph, the P-graph. Different set of axioms are proposed for describing the case of disturbance-rejective regulable and the combinatorially feasible and controllable structures in the special cases considered: the case of structural controllability and the case of fault-tolerant controllability. These axioms make the synthesis computationally more effective by considering very simple engineering knowledge. The maximal controllable structure of an IPXS synthesis problem has been defined as the union of combinatorially feasible and controllable IPXS structures. Thus, the mathematical programming model, e.g. MINLP model, of an IPXS synthesis problem can be and should be derived from the maximal controllable structure. Different versions of a fundamental polynomial time, combinatorial algorithm are presented for identifying the maximal controllable structure. The resultant IPXS structures are compared with the structures synthesized without considering their control systems. (C) 1998 Elsevier Science Ltd. All rights reserved. |
BibTeX:
@article{Gal1998, author = {Gál, I. P. and Varga, J. B. and Hangos, K. M.}, title = {Integrated structure design of a process and its control system}, journal = {Journal Of Process Control}, year = {1998}, volume = {8}, number = {4}, pages = {251--263} } |
Gál LP and Hangos KM (1996), "Graph-theoretic method for integrated process, control and diagnostic system synthesis", Modelling And Simulation 1996., In Modelling And Simulation 1996. , pp. 719-723. |
Abstract: An extended graph-theoretic method for integration of process, control and diagnostic system (IPCDS) syntheses has been proposed in the present paper. The foundation of this integration is a well-established, graph-theoretic approach to process synthesis in conjunction with the analysis of structural controllability and observability based on digraph-type process models. The axioms of structural controllability and observability of an IPCDS structure is introduced on directed bipartite graph, the DCP-graph. The maximal controllable and observable structure of an IPCDS synthesis problem has been defined as the union of combinatorially feasible, controllable and observable IPCDS structures. The optimal IPCDS structure must be a substructure of this maximal controllable and observable structure. The fundamental combinatorial algorithm of IPCDS synthesis, i.e., algorithm COMSG, for identifying this maximal controllable and observable structure has been formulated. |
BibTeX:
@conference{Gal1996, author = {Gál, L. P. and Hangos, K. M.}, title = {Graph-theoretic method for integrated process, control and diagnostic system synthesis}, booktitle = {Modelling And Simulation 1996}, journal = {Modelling And Simulation 1996}, year = {1996}, pages = {719--723} } |
Gáspár P, Szabó Z, Szederkényi G and Bokor J (2012), "Design of a two-level controller for an active suspension system", Asian Journal of Control. Vol. 14, pp. 664-678. |
Abstract: The paper focuses on a control design for a vehicle suspension system in which a balance between different performance demands is achieved. The starting point of the control design is a full–car model which contains nonlinear components, i.e. the dynamics of the dampers and springs and nonlinear actuator dynamics. In order to handle the high complexity of the problem this paper proposes the design of a two-level controller of an active suspension system. The required control force is computed by applying a high-level controller, which is designed using a linear parameter varying (LPV) method. For the control design the model is augmented with weighting functions specified by the performance demands and the uncertainty assumptions. The actuator generating the necessary control force is modelled as a nonlinear system for which a low-level force-tracking controller is designed. To obtain the low-level controller a backstepping method is proposed. As an alternative solution a feedback linearization method is also presented. The operation of the controller is illustrated through simulation examples. |
BibTeX:
@article{Gaspar2011, author = {P. Gáspár and Z. Szabó and G. Szederkényi and J. Bokor}, title = {Design of a two-level controller for an active suspension system}, journal = {Asian Journal of Control}, year = {2012}, volume = {14}, pages = {664-678}, doi = {10.1002/asjc.386} } |
Gáspár P, Szabó Z, Szederkényi G and Bokor J (2008), "Two-level controller design for an active suspension system", In 16th Mediterranean Conference on Control and Automation, MED'08, Ajaccio, Corsica, France. , pp. 439-444. |
BibTeX:
@conference{Gaspar2008a, author = {P. Gáspár and Z. Szabó and G. Szederkényi and J. Bokor}, title = {Two-level controller design for an active suspension system}, booktitle = {16th Mediterranean Conference on Control and Automation, MED'08, Ajaccio, Corsica, France}, year = {2008}, pages = {439-444}, note = {ISBN: 978-1-4244-2505-1} } |
Gáspár P and Szederkényi G (2007), "Combined LPV and nonlinear control of an active suspension system", In Proc. of the 2007 IEEE International Symposium on Industrial Electronics (ISIE2007). Vigo, Spain, June, 2007. , pp. 215-220.
[BibTeX] |
BibTeX:
@conference{Gaspar2007, author = {P. Gáspár and G. Szederkényi}, title = {Combined LPV and nonlinear control of an active suspension system}, booktitle = {Proc. of the 2007 IEEE International Symposium on Industrial Electronics (ISIE2007)}, year = {2007}, pages = {215--220}, note = {ISBN: 1-4244-0755-9} } |
Gáspár P, Szederkényi G, Szabó Z and Bokor J (2008), "The design of a two-level controller for suspension systems", In 17th IFAC World Congress, Seoul, Korea. , pp. 3386-3391. |
BibTeX:
@conference{Gaspar2008b, author = {P. Gáspár and G. Szederkényi and Z. Szabó and J. Bokor}, title = {The design of a two-level controller for suspension systems}, booktitle = {17th IFAC World Congress, Seoul, Korea}, year = {2008}, pages = {3386-3391}, note = {ISBN: 978-1-1234-7890-2} } |
Gerzson M, Csáki Z and Hangos KM (1994), "Qualitative Model-Based Verification Of Operating Procedures By High-Level Petri Nets", Computers & Chemical Engineering. Vol. 18, pp. S565-S569. |
Abstract: The presence of colored tokens and time opens the possibility to combine high level Petri nets for describing operating procedures and constraint type qualitative models describing the model of the system over a wide operating range. Places can be associated to state variables and the color of the tokens can be related to the qualitative value of the variable. Are expressions correspond to qualitative model equations. A suitably modified version of the order of magnitude qualitative value representation form is used together with a scaling of each variable to have the same uniform qualitative range. Operations are performed on the interval arithmetic basis and only the result is transformed back to the uniform order of magnitude quantity space. This computation method ensures advantageous algebraic properties. Based on the above idea a novel verification method is proposed in this paper for testing operating procedures against a qualitative model of the system using a high level or colored Petri net representation of the procedure and the model together. |
BibTeX:
@article{GERZSON1994, author = {Gerzson, M. and Csáki, Z. and Hangos, K. M.}, title = {Qualitative Model-Based Verification Of Operating Procedures By High-Level Petri Nets}, journal = {Computers & Chemical Engineering}, year = {1994}, volume = {18}, pages = {S565--S569} } |
Gerzson M and Hangos KM (1995), "Analysis Of Controlled Technological Systems Using Nigh Level Petri Nets", Computers & Chemical Engineering. Vol. 19, pp. S531-S536. |
Abstract: Based on the formal correspondence between constraint type qualitative differential equations (QDEs) with order of magnitude quantity space and colored Petri nets (CPNs) a formal relation is identified between (i) the reachability tree of the stochastic CPNs and the behaviour tree of the related constraint type QDEs generated by the EQSIM method (Hangos et al., 1992); (ii) the reachability tree of deterministic CPNs and solution of constraint type QDEs generated by interval arithmetic methods. The behavioural properties of controlled technological systems, their reachability, boundedness and liveness, are investigated. It is shown that the technological subnet is live and bounded. The analysis of these properties in general case is based on the reachability tree of the CPN (Jensen and Rozenberg, 1991) which is of high computational time complexity. In contrary the structural properties of the overall CPN is analysed by the invariant method, which has polynomial time complexity. It is shown that places and transitions in the technological subnet are place and transition invariants of the overall net if the technological system has a steady state. |
BibTeX:
@article{GERZSON1995, author = {Gerzson, M. and Hangos, K. M.}, title = {Analysis Of Controlled Technological Systems Using Nigh Level Petri Nets}, journal = {Computers & Chemical Engineering}, year = {1995}, volume = {19}, pages = {S531--S536} } |
Gerzson M and Hangos KM (1995), "Qualitative Model-Based Verification Of Operating Procedures Using Colored Petri Nets", Magyar Kémiai Folyoirat. Vol. 101(3), pp. 97-114. |
Abstract: A method of transforming constraint type qualitative differential equations into coloured Petri nets has been shown in the paper when the variables and parameters in the qualitative differential equations are described by order of magnitude value set. The proposed transformation enables the application of established verification and analysis methods developed for coloured Petri nets for the verification of operating procedures using the qualitative model of the controlled system. The proposed method is illustrated by a simple technological example. |
BibTeX:
@article{GERZSON1995a, author = {Gerzson, M. and Hangos, K. M.}, title = {Qualitative Model-Based Verification Of Operating Procedures Using Colored Petri Nets}, journal = {Magyar Kémiai Folyoirat}, year = {1995}, volume = {101}, number = {3}, pages = {97--114} } |
Gerzson M, Leitold A and Hangos KM (2014), "Faults and Fault Propagation Modeling in Manufacturing Systems based on Colored Petri Nets", In 28th European Simulation and Modelling Conference, 2014. 10. 22 - 2014. 10. 24, Porto, Portugal. , pp. 327-331. |
BibTeX:
@conference{Gerzson2014, author = {M. Gerzson and A. Leitold and K. M. Hangos}, editor = {A. C. Brito and J. M. Tavares and C. B. Olivera}, title = {Faults and Fault Propagation Modeling in Manufacturing Systems based on Colored Petri Nets}, booktitle = {28th European Simulation and Modelling Conference, 2014. 10. 22 - 2014. 10. 24, Porto, Portugal}, year = {2014}, pages = {327-331} } |
Gerzson M, Leitold A and Hangos KM (2011), "Model based process diagnosis using graph methods", In Factory Automation 2011 (Gyártásautomatizálás 2011), Győr, május 24-29.. , pp. 1-6 (on CD). |
BibTeX:
@conference{Gerzson2011, author = {M. Gerzson and A. Leitold and K. M. Hangos}, title = {Model based process diagnosis using graph methods}, booktitle = {Factory Automation 2011 (Gyártásautomatizálás 2011), Győr, május 24-29.}, year = {2011}, pages = {1-6 (on CD)} } |
Gerzson M, Leitold A and Hangos KM (1997), "Analysis or controlled process systems by high level petri nets .1. Modelling.", Magyar Kémiai Folyoirat. Vol. 103(5), pp. 197-208. |
Abstract: In the first part of our two-part paper the coloured Petri net model of the controlled process system consisting of the qualitative dynamic process model and the operating procedure is introduced and is proposed for model-based verification of operating procedures. The operation of the coloured Petri net model of the process and that of the operating procedure is defined in various ways. It is also investigated how the solution methods of the qualitative difference equations present in the are function of the coloured Petri net effects the operation of the net. |
BibTeX:
@article{Gerzson1997, author = {Gerzson, M. and Leitold, A. and Hangos, K. M.}, title = {Analysis or controlled process systems by high level petri nets .1. Modelling.}, journal = {Magyar Kémiai Folyoirat}, year = {1997}, volume = {103}, number = {5}, pages = {197--208} } |
Gerzson M, Leitold A and Hangos KM (1997), "Analysis of controlled process systems by high level petri nets .2. Analysis.", Magyar Kémiai Folyoirat. Vol. 103(5), pp. 209-223. |
Abstract: In the first part of our two-part paper the coloured Petri net model of the controlled process system consisting of the qualitative dynamic processmodel and the operating procedure has been introduced and has been proposed for model-based verification of operating procedures. The second part is devoted to the analysis of the resulted Petri net model applying the methods available for analysing coloured Petri nets. The well-known properties of coloured Petri nets (such as reachability, liveness, boundedness etc.) are given technological and process control meaning in case of our Petri net model of the controlled process system containing both the process and its operating procedure. It is shown how the concepts and methods can be applied for controlled chemical process systems. |
BibTeX:
@article{Gerzson1997a, author = {Gerzson, M. and Leitold, A. and Hangos, K. M.}, title = {Analysis of controlled process systems by high level petri nets .2. Analysis.}, journal = {Magyar Kémiai Folyoirat}, year = {1997}, volume = {103}, number = {5}, pages = {209--223} } |
Gerzson M, Leitold A, Márczi B and Hangos K (2012), "Model based diagnosis of technological systems using graph methods", In Factory Automation (Gyártás-Automatizálás) Conference, Veszprém, Hungary, 21-22 May. , pp. 28-33. |
BibTeX:
@conference{Gerzson2012, author = {M. Gerzson and A. Leitold and B. Márczi and K.M. Hangos}, title = {Model based diagnosis of technological systems using graph methods}, booktitle = {Factory Automation (Gyártás-Automatizálás) Conference, Veszprém, Hungary, 21-22 May}, year = {2012}, pages = {28-33} } |
Görbe A, Magyar A and Hangos K (2010), "Power Conditioning with Electric Car Battery Charging from Renewable Sources", Hungarian Journal of Industrial Chemistry. Vol. 38(1), pp. 27-33. |
BibTeX:
@article{Goerbe2010b, author = {Görbe, A. and Magyar, A. and Hangos, K.M.}, title = {Power Conditioning with Electric Car Battery Charging from Renewable Sources}, journal = {Hungarian Journal of Industrial Chemistry}, year = {2010}, volume = {38}, number = {1}, pages = {27-33} } |
Görbe P, Fodor A, Magyar A and Hangos KM (2014), "Experimental study of the nonlinear distortion caused by domestic power plants", Applied Thermal Engineering. Vol. 70, pp. 1288-1293. |
BibTeX:
@article{Goerbe2014, author = {P. Görbe and A. Fodor and A. Magyar and K. M. Hangos}, title = {Experimental study of the nonlinear distortion caused by domestic power plants}, journal = {Applied Thermal Engineering}, year = {2014}, volume = {70}, pages = {1288-1293}, doi = {10.1016/j.applthermaleng.2014.05.072} } |
Görbe P, Magyar A, Fodor A and Hangos K (2013), "Effect of Domastic Power Plants to the Low Voltage Transformer Areas from the Nonlinear Distortion Point of View", Chemical Engineering Transactions. Vol. 35, pp. 1303-1308. |
BibTeX:
@article{Goerbe2013, author = {P. Görbe and A. Magyar and A. Fodor and K.M. Hangos}, title = {Effect of Domastic Power Plants to the Low Voltage Transformer Areas from the Nonlinear Distortion Point of View}, journal = {Chemical Engineering Transactions}, year = {2013}, volume = {35}, pages = {1303-1308}, doi = {10.3303/CET1335217} } |
Görbe P, Magyar A and Hangos K (2012), "Megújuló energiaforrások komplex integrációja kisfeszültségű nemlineáris torzított hálózatokban", Magyar Tudomány., 7, 2012. Vol. 7 - kulonszam(7 - k\"ul\"onsz\'am), pp. 146-153. |
BibTeX:
@article{Gorbe2012, author = {P. Görbe and A. Magyar and K.M. Hangos}, title = {Megújuló energiaforrások komplex integrációja kisfeszültségű nemlineáris torzított hálózatokban}, journal = {Magyar Tudomány}, year = {2012}, volume = {7 - kulonszam}, number = {7 - különszám}, pages = {146-153} } |
Görbe P, Magyar A and Hangos K (2010), "Power Conditioning with Electric Car Battery Charging from Renewable Sources", In 11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary. Vol. ISBN 978-615-5044-00-7, pp. 98-105. |
BibTeX:
@conference{Goerbe2010a, author = {Görbe, P. and Magyar, A. and Hangos, K.M.}, title = {Power Conditioning with Electric Car Battery Charging from Renewable Sources}, booktitle = {11th International PhD Workshop on Systems and Control a Young Generation Viewpoint, September 1--3, 2010, Veszprém, Hungary}, year = {2010}, volume = {ISBN 978-615-5044-00-7}, pages = {98-105} } |
Görbe P, Magyar A and Hangos KM (2012), "Reduction of power losses with smart grids fueled with renewable sources and applying EV batteries", Journal of Cleaner Production. Vol. 34, pp. 125-137. |
BibTeX:
@article{Goerbe2012, author = {P. Görbe and A. Magyar and K. M. Hangos}, title = {Reduction of power losses with smart grids fueled with renewable sources and applying EV batteries}, journal = {Journal of Cleaner Production}, year = {2012}, volume = {34}, pages = {125-137}, doi = {10.1016/j.jclepro.2011.12.021} } |
Görbe P, Magyar A and Hangos KM (2011), "Low voltage grid optimization with power injection of renewable sources and EV batteries", In 14th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction - PRES'11 8-11 May, Florence, Italy. , pp. 1-6 (on CD). |
BibTeX:
@conference{Goerbe2011, author = {P. Görbe and A. Magyar and K. M. Hangos}, title = {Low voltage grid optimization with power injection of renewable sources and EV batteries}, booktitle = {14th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction - PRES'11 8-11 May, Florence, Italy}, year = {2011}, pages = {1-6 (on CD)} } |
Görbe P, Magyar A and Hangos KM (2010), "THD Reduction with Grid Synchronized Inverter's Power Injection of Renewable Sources", In SPEEDAM 2010, International Symposium on Power Electronics, Electrical Drives, Automation and Motion. (978-1-4244-7919-1/10/), pp. 1381-1386. |
BibTeX:
@conference{Goerbe2010, author = {Görbe, P. and Magyar, A. and Hangos, K. M.}, title = {THD Reduction with Grid Synchronized Inverter's Power Injection of Renewable Sources}, booktitle = {SPEEDAM 2010, International Symposium on Power Electronics, Electrical Drives, Automation and Motion}, year = {2010}, number = {978-1-4244-7919-1/10/}, pages = {1381-1386} } |
Görbe P, Magyar A and Hangos KM (2009), "Line Conditioning with Grid Synchronized Inverter's Power Injection of Renewable Sources in Nonlinear Distorted Mains", In 10th International PhD Workshop on Systems and Control, paper 103, Hluboka nad Vltavou, Czech Republic September 22-26. |
BibTeX:
@conference{Goerbe2009, author = {P. Görbe and A. Magyar and K. M. Hangos}, title = {Line Conditioning with Grid Synchronized Inverter's Power Injection of Renewable Sources in Nonlinear Distorted Mains}, booktitle = {10th International PhD Workshop on Systems and Control, paper 103, Hluboka nad Vltavou, Czech Republic September 22-26}, year = {2009} } |
Halász G, Tóth J and Hangos KM (1988), "Energy-Optimal Operation Conditions Of A Tunnel Kiln", Computers & Chemical Engineering. Vol. 12(2-3), pp. 183-187.
[BibTeX] |
BibTeX:
@article{HALASZ1988, author = {Halász, G. and Tóth, J. and Hangos, K. M.}, title = {Energy-Optimal Operation Conditions Of A Tunnel Kiln}, journal = {Computers & Chemical Engineering}, year = {1988}, volume = {12}, number = {2-3}, pages = {183--187} } |
Hangos K (1991), "Qualitative Process Modelling", In Chemical Process Control, CPC-IV. New York , pp. 209-236. AIChE.
[BibTeX] |
BibTeX:
@conference{Hangos1991, author = {K.M. Hangos}, editor = {Y. Arkun and W. H. Ray}, title = {Qualitative Process Modelling}, booktitle = {Chemical Process Control, CPC-IV}, publisher = {AIChE}, year = {1991}, pages = {209-236} } |
Hangos K (1994), "Present State And Possible Development Trends Of Research In The Field Of Chemometrics In Hungary", Magyar Kémiai Folyoirat. Vol. 100(6), pp. 251-256. |
Abstract: The present state and recent development of Hungarian chemometric research has been evaluated in this paper based on the status report of the present state and results of analytical chemistry in Hungary. The possible development trends and the necessary promoting actions have also been outlined based on the evaluation and on the international trends in chemometrics. |
BibTeX:
@article{HANGOS1994, author = {Hangos, K.}, title = {Present State And Possible Development Trends Of Research In The Field Of Chemometrics In Hungary}, journal = {Magyar Kémiai Folyoirat}, year = {1994}, volume = {100}, number = {6}, pages = {251--256} } |
Hangos K (1992), "Application of neural network in chemical process control and diagnosis" Budapest, Hungary (SCL-001/1992)
[BibTeX] |
BibTeX:
@techreport{Hangos1992b, author = {K.M. Hangos}, title = {Application of neural network in chemical process control and diagnosis}, year = {1992}, number = {SCL-001/1992} } |
Hangos K (1990), "Experiment Design For Qualitative Model Structure Determination", Magyar Kémiai Folyoirat. Vol. 96(6), pp. 251-257.
[BibTeX] |
BibTeX:
@article{HANGOS1990, author = {Hangos, K.}, title = {Experiment Design For Qualitative Model Structure Determination}, journal = {Magyar Kémiai Folyoirat}, year = {1990}, volume = {96}, number = {6}, pages = {251--257} } |
Hangos K (1982), "Sensitivity of discrete linear stochastic systems with respect to parameter variations of their discrete linear regulators", Problems of Control and Inf. Theory. Vol. 11, pp. 167-177.
[BibTeX] |
BibTeX:
@article{Hangos1982, author = {K.M. Hangos}, title = {Sensitivity of discrete linear stochastic systems with respect to parameter variations of their discrete linear regulators}, journal = {Problems of Control and Inf. Theory}, year = {1982}, volume = {11}, pages = {167-177} } |
Hangos K (1982), "On the ARMAX-type system properties affecting the quality of control by discrete time-invariant minimum variance regulators", Problems of Control and Inf. Theory. Vol. 11, pp. 67-76.
[BibTeX] |
BibTeX:
@article{Hangos1982a, author = {K.M. Hangos}, title = {On the ARMAX-type system properties affecting the quality of control by discrete time-invariant minimum variance regulators}, journal = {Problems of Control and Inf. Theory}, year = {1982}, volume = {11}, pages = {67-76} } |
Hangos K and Almásy G (1988), "On jump-like state changes of chemical operation units (in Hungarian)", Magyar Kémikusok Lapja. Vol. XLIII(3-4), pp. 140-143.
[BibTeX] |
BibTeX:
@article{Hangos1988, author = {K.M. Hangos and G. Almásy}, title = {On jump-like state changes of chemical operation units (in Hungarian)}, journal = {Magyar Kémikusok Lapja}, year = {1988}, volume = {XLIII}, number = {3-4}, pages = {140-143} } |
Hangos K, Bokor J and Szederkényi G (2004), "Analysis and Control of Nonlinear Process Systems" Springer.
[BibTeX] |
BibTeX:
@book{Hangos2004a, author = {K. Hangos and J. Bokor and G. Szederkényi}, title = {Analysis and Control of Nonlinear Process Systems}, publisher = {Springer}, year = {2004} } |
Hangos K, Bokor J and Szederkényi G (2002), "Computer Controlled Systems -- 2nd edition with examples" Veszprémi Egyetemi Kiadó.
[BibTeX] |
BibTeX:
@book{Hangos2002, author = {Katalin Hangos and József Bokor and Gábor Szederkényi}, title = {Computer Controlled Systems -- 2nd edition with examples}, publisher = {Veszprémi Egyetemi Kiadó}, year = {2002} } |
Hangos K, Bokor J and Szederkényi G (2001), "Hamiltonian view on process systems", AIChE Journal. Vol. 47, pp. 1819-1831. |
Abstract: The thermodynamic approach of analyzing structural stability of process plants was extended to construct the simple Hamiltonian model of lumped process systems. This type of model enables us to design a nonlinear PD feedback controller for passivation and loop shaping. This approach is applicable for lumped process systems where Kirchhoff convective transport takes place together with the transfer and sources of various types, and the manipulable input variables are the flow rates. Systems with constant mass holdup and uniform pressure in every balance volume satisfy these conditions. General results are shown by simple examples of practical importance: on a bilinear heat exchanger cell and on an isotherm CSTR with nonlinear reaction. |
BibTeX:
@article{Hangos2001a, author = {K.M. Hangos and J. Bokor and G. Szederkényi}, title = {Hamiltonian view on process systems}, journal = {AIChE Journal}, year = {2001}, volume = {47}, pages = {1819--1831}, doi = {10.1002/aic.690470813} } |
Hangos K and Cameron I (2001), "Process modelling and model analysis" , pp. 1-543. Academic Press, London.
[BibTeX] |
BibTeX:
@book{Hangos2001c, author = {K.M. Hangos and I.T. Cameron}, editor = {-------}, title = {Process modelling and model analysis}, publisher = {Academic Press, London}, year = {2001}, pages = {1-543} } |
Hangos K and Csáki Z (1992), "Qualitative simulation in the limit", Artificial Intelligence in Engineering. Vol. 7(2), pp. 105-109.
[BibTeX] |
BibTeX:
@article{Hangos1992, author = {K.M. Hangos and Zs. Csáki}, title = {Qualitative simulation in the limit}, journal = {Artificial Intelligence in Engineering}, year = {1992}, volume = {7}, number = {2}, pages = {105-109} } |
Hangos K, Gábor A and Szederkényi G (2013), "Model reduction in bio-chemical reaction networks with Michaelis-Menten kinetics", In European Control Conference (ECC 2013), July 17-19 2013, Zurich. , pp. 4478-4483. |
BibTeX:
@conference{Hangos2013, author = {Hangos, K.M. and Gábor, A. and Szederkényi, G.}, title = {Model reduction in bio-chemical reaction networks with Michaelis-Menten kinetics}, booktitle = {European Control Conference (ECC 2013), July 17-19 2013, Zurich}, year = {2013}, pages = {4478-4483} } |
Hangos K, Gerzson M, Leitold A, Werner-Stark A and Dulai T (2012), "Petri háló modelleken alapuló járműipari diagnosztikai módszerek", Magyar Tudomány., 7, 2012. Vol. 7 - kulonszam(7 - k\"ul\"onsz\'am), pp. 154-163. |
BibTeX:
@article{Hangos2012a, author = {K.M. Hangos and M. Gerzson and A. Leitold and A. Werner-Stark and T. Dulai}, title = {Petri háló modelleken alapuló járműipari diagnosztikai módszerek}, journal = {Magyar Tudomány}, year = {2012}, volume = {7 - kulonszam}, number = {7 - különszám}, pages = {154-163} } |
Hangos K and Holderith J (1977), "Hierarchical modelling of gas-liquid reactors. Elementary formation submodels (in Hungarian)", Magyar Kémikusok Lapja. Vol. 32, pp. 598-600.
[BibTeX] |
BibTeX:
@article{Hangos1977, author = {K.M. Hangos and J. Holderith}, title = {Hierarchical modelling of gas-liquid reactors. Elementary formation submodels (in Hungarian)}, journal = {Magyar Kémikusok Lapja}, year = {1977}, volume = {32}, pages = {598-600} } |
Hangos K, Jorgensen S and Clement K (1989), "Estimation of the reaction rate in a packed-bed reactor", In Prep. IFAC Symposium on Dynamics and Control of Chemical Reactors, Distillation Columns and Batch Processes DYCORD+'89. Maastricht, Netherlands , pp. 101-106.
[BibTeX] |
BibTeX:
@conference{Hangos1989e, author = {K.M. Hangos and S.B. Jorgensen and K.H. Clement}, title = {Estimation of the reaction rate in a packed-bed reactor}, booktitle = {Prep. IFAC Symposium on Dynamics and Control of Chemical Reactors, Distillation Columns and Batch Processes DYCORD+'89}, year = {1989}, pages = {101-106} } |
Hangos K and Lakner R (2006), "Model Tuning, Discrimination, and Verification", In Computer Aided Process and Product Engineering. (ISBN 3-527-30804-0), pp. 171-187. Wiley-VCH.
[BibTeX] |
BibTeX:
@incollection{Hangos2006a, author = {K.M. Hangos and R. Lakner}, editor = {L. Puigjaner and G. Heyen}, title = {Model Tuning, Discrimination, and Verification}, booktitle = {Computer Aided Process and Product Engineering}, publisher = {Wiley-VCH}, year = {2006}, number = {ISBN 3-527-30804-0}, pages = {171-187} } |
Hangos K, Lakner R and Gerzson M (2001), "Intelligent Control Systems: An Introduction with Examples" , pp. 1-301. Kluwer Academic Publisher.
[BibTeX] |
BibTeX:
@book{Hangos2001d, author = {K.M. Hangos and R. Lakner and M. Gerzson}, editor = {---}, title = {Intelligent Control Systems: An Introduction with Examples}, publisher = {Kluwer Academic Publisher}, year = {2001}, pages = {1-301} } |
Hangos K, Lakner R and Werner-Stark A (2012), "Modell alapú diagnosztika diszkrét módszerekkel" Pannon Egyetem. |
BibTeX:
@book{Hangos2012, author = {K.M. Hangos and R. Lakner and A. Werner-Stark}, title = {Modell alapú diagnosztika diszkrét módszerekkel}, publisher = {Pannon Egyetem}, year = {2012}, url = {http://virt.uni-pannon.hu/index.php/component/docman/doc_download/1098-diszkrdiag}, doi = {ISBN 978-615-5044-55-7} } |
Hangos K and Leisztner L (1989), "Control Of Analytical Measurement Methods Using Signal-To-Noise Ratio", Magyar Kémiai Folyoirat. Vol. 95(3), pp. 110-114.
[BibTeX] |
BibTeX:
@article{HANGOS1989b, author = {Hangos, K. and Leisztner, L.}, title = {Control Of Analytical Measurement Methods Using Signal-To-Noise Ratio}, journal = {Magyar Kémiai Folyoirat}, year = {1989}, volume = {95}, number = {3}, pages = {110--114} } |
Hangos K and Leisztner L (1986), "Transformation Of Random Error Into Systematic One By Data Reduction Transformation", Magyar Kémiai Folyoirat. Vol. 92(6), pp. 282-286.
[BibTeX] |
BibTeX:
@article{HANGOS1986b, author = {Hangos, K. and Leisztner, L.}, title = {Transformation Of Random Error Into Systematic One By Data Reduction Transformation}, journal = {Magyar Kémiai Folyoirat}, year = {1986}, volume = {92}, number = {6}, pages = {282--286} } |
Hangos K, Leisztner L and Kárny M (1989), "Calibration And Measurement Control Based On Bayes Statistics", Magyar Kémiai Folyoirat. Vol. 95(7-8), pp. 315-322.
[BibTeX] |
BibTeX:
@article{HANGOS1989c, author = {Hangos, K. and Leisztner, L. and Kárny, M.}, title = {Calibration And Measurement Control Based On Bayes Statistics}, journal = {Magyar Kémiai Folyoirat}, year = {1989}, volume = {95}, number = {7-8}, pages = {315--322} } |
Hangos K, Németh E and Lakner R (2008), "A procedure ontology for advanced diagnosis of process systems", In 12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES 2008). Vol. LNAI 5177, pp. 501-508. Springer-Verlag Berlin Heidelberg. |
BibTeX:
@inproceedings{Hangos2008a, author = {K.M. Hangos and E. Németh and R. Lakner}, editor = {I. Lovrek and R.J. Howlett, and L.C. Jain}, title = {A procedure ontology for advanced diagnosis of process systems}, booktitle = {12th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES 2008)}, publisher = {Springer-Verlag Berlin Heidelberg}, year = {2008}, volume = {LNAI 5177}, pages = {501-508} } |
Hangos K, Nagy J and Leisztner L (1985), "Investigation Of The Autocorrelation-Type Measurement Error In Measurement Processes", Magyar Kémiai Folyoirat. Vol. 91(5), pp. 193-200.
[BibTeX] |
BibTeX:
@article{HANGOS1985, author = {Hangos, K. and Nagy, J. and Leisztner, L.}, title = {Investigation Of The Autocorrelation-Type Measurement Error In Measurement Processes}, journal = {Magyar Kémiai Folyoirat}, year = {1985}, volume = {91}, number = {5}, pages = {193--200} } |
Hangos K and Szederkényi G (2007), "Thermodynamical foundations of passivity based process control" , pp. 29. Springer-Verlag.
[BibTeX] |
BibTeX:
@inbook{Hangos2007, author = {K.M. Hangos and G. Szederkényi}, editor = {Jie Bao and Peter Lee}, title = {Thermodynamical foundations of passivity based process control}, publisher = {Springer-Verlag}, year = {2007}, pages = {29}, note = {Chapter 8 in "Process Control: The Passive Systems Approach" by Jie Bao and Peter L. Lee, Springer-Verlag, London, 2007, ISBN: 978-1-84628-892-0, 253 pages} } |
Hangos K and Szederkényi G (2013), "The effect of conservation on the dynamics of chemical reaction networks", In IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France. , pp. 30-35. |
BibTeX:
@conference{Hangos2013a, author = {Hangos, K.M. and Szederkényi, G.}, editor = {B. E. Ydstie and B. Maschke and D. Dochain}, title = {The effect of conservation on the dynamics of chemical reaction networks}, booktitle = {IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France}, year = {2013}, pages = {30-35}, note = {ISBN: 978-3-902823-40-3}, doi = {10.3182/20130714-3-FR-4040.00008} } |
Hangos K and Szederkényi G (2004), "Process systems: theory and applications from different aspects", ERCIM News. Vol. no. 56., pp. 35-36.
[BibTeX] |
BibTeX:
@article{Hangos2004b, author = {K.M. Hangos and G. Szederkényi}, title = {Process systems: theory and applications from different aspects}, journal = {ERCIM News}, year = {2004}, volume = {no. 56.}, pages = {35--36} } |
Hangos K and Szederkényi G (1999), "Grey box process modeling for fault detection and isolation", In European Control Conference -- ECC 99. Karlsruhe, Germany , pp. 1-6 (on CD).
[BibTeX] |
BibTeX:
@conference{Hangos1999b, author = {K.M. Hangos and G. Szederkényi}, title = {Grey box process modeling for fault detection and isolation}, booktitle = {European Control Conference -- ECC 99}, year = {1999}, pages = {1--6 (on CD)} } |
Hangos K, Szederkényi G and Otero-Muras I (2006), "Process control based on physical insight: passivity and Hamiltonian system models", In Proceedings of the Workshop on System Identification and Control Systems. (ISBN 963-421-586-6), pp. 129-146. Advanced Vehicles and Vehicle Control Knowledge Center of BME.
[BibTeX] |
BibTeX:
@incollection{Hangos2006, author = {K.M. Hangos and G. Szederkényi and I. Otero-Muras}, editor = {J. Bokor and K.M. Hangos}, title = {Process control based on physical insight: passivity and Hamiltonian system models}, booktitle = {Proceedings of the Workshop on System Identification and Control Systems}, publisher = {Advanced Vehicles and Vehicle Control Knowledge Center of BME}, year = {2006}, number = {ISBN 963-421-586-6}, pages = {129-146} } |
Hangos K, Szederkényi G and Tuza Z (2004), "The effect of model simplification assumptions on the differential index of lumped process models", Computers and Chemical Engineering. Vol. 28, pp. 129-137. |
Abstract: The effect of model simplification assumptions on the differential index of differential-algebraic equation (DAE) process models is investigated in this paper. A process model is considered as the set of model equations in the form of a DAE system together with a suitable specification forming a zero degree of freedom model. Such a model is described by its equation variable graph. The effect of model simplification assumptions is analyzed by describing them as graph transformations acting on the structure graph of the process model. Efficient incremental graphtheoretic algorithms are proposed to follow the changes in the variable-equation assignments and for analyzing the changes in the differential index during the model simplification phase of the modelling process. The algorithms provide guidelines on how to modify the specification in order to obtain an index 1 model after model simplification. A case study with different transformations is used to demonstrate the operation of the algorithms and to follow the effect of constant and steady-state assumptions on the differential index of a simple process model. |
BibTeX:
@article{Hangos2004, author = {K.M. Hangos and G. Szederkényi and Zs. Tuza}, title = {The effect of model simplification assumptions on the differential index of lumped process models}, journal = {Computers and Chemical Engineering}, year = {2004}, volume = {28}, pages = {129--137}, doi = {10.1016/S0098-1354(03)00166-2} } |
Hangos KM (2010), "Engineering Model Reduction and Entropy-based Lyapunov Functions in Chemical Reaction Kinetics", Entropy. Vol. 12, pp. 772-797. |
Abstract: In this paper, the structural properties of chemical reaction systems obeying the mass action law are investigated and related to the physical and chemical properties of the system. An entropy-based Lyapunov function candidate serves as a tool for proving structural stability, the existence of which is guaranteed by the second law of thermodynamics. The commonly used engineering model reduction methods, the so-called quasi equilibrium and quasi steady state assumption based reductions, together with the variable lumping are formally defined as model transformations acting on the reaction graph. These model reduction transformations are analysed to find conditions when (a) the reduced model remains in the same reaction kinetic system class, (b) the reduced model retains the most important properties of the original one including structural stability. It is shown that both variable lumping and quasi equilibrium based reduction preserve both the reaction kinetic form and the structural stability of reaction kinetic models of closed systems with mass action law kinetics, but this is not always the case for the reduction based on quasi steady state assumption. |
BibTeX:
@article{Hangos2010, author = {K. M. Hangos}, title = {Engineering Model Reduction and Entropy-based Lyapunov Functions in Chemical Reaction Kinetics}, journal = {Entropy}, year = {2010}, volume = {12}, pages = {772-797}, doi = {10.3390/e12040772} } |
Hangos KM (1993), "Complexity Of Dynamic-Models For Intelligent Control", Mutual Impact Of Computing Power And Control Theory., In Mutual Impact Of Computing Power And Control Theory. , pp. 77-95.
[BibTeX] |
BibTeX:
@conference{HANGOS1993, author = {Hangos, K. M.}, title = {Complexity Of Dynamic-Models For Intelligent Control}, booktitle = {Mutual Impact Of Computing Power And Control Theory}, journal = {Mutual Impact Of Computing Power And Control Theory}, year = {1993}, pages = {77--95} } |
Hangos KM (1984), "Chemical Noise And Measurement Error Processes - Continuous And Discrete-Time Models", Chemical Engineering Science. Vol. 39(7-8), pp. 1225-1231.
[BibTeX] |
BibTeX:
@article{HANGOS1984, author = {Hangos, K. M.}, title = {Chemical Noise And Measurement Error Processes - Continuous And Discrete-Time Models}, journal = {Chemical Engineering Science}, year = {1984}, volume = {39}, number = {7-8}, pages = {1225--1231} } |
Hangos KM (1981), "Application Of Different Regulators For Stirred Tank Reactor Control - Simulation Study", Hungarian Journal Of Industrial Chemistry. Vol. 9(4), pp. 397-406.
[BibTeX] |
BibTeX:
@article{HANGOS1981, author = {Hangos, K. M.}, title = {Application Of Different Regulators For Stirred Tank Reactor Control - Simulation Study}, journal = {Hungarian Journal Of Industrial Chemistry}, year = {1981}, volume = {9}, number = {4}, pages = {397--406} } |
Hangos KM (1980), "Linear-Models Of Continuously Stirred Tank Reactors", Hungarian Journal Of Industrial Chemistry. Vol. 8(1), pp. 25-34.
[BibTeX] |
BibTeX:
@article{HANGOS1980, author = {Hangos, K. M.}, title = {Linear-Models Of Continuously Stirred Tank Reactors}, journal = {Hungarian Journal Of Industrial Chemistry}, year = {1980}, volume = {8}, number = {1}, pages = {25--34} } |
Hangos KM, Alonso AA, Perkins JD and Ydstie BE (1999), "Thermodynamic approach to the structural stability of process plants", Aiche Journal. Vol. 45(4), pp. 802-816. |
Abstract: A thermodynamic approach for analyzing the structural stability of process plants is presented. The results are connected with a theor of systems described by dynamic conservation balances using a potential for stability analysis that generalizes the availability/exergy. This theory is used to show that interconnected systems with no source terms and Kirchhoff convection are structurally asymptotically stable. The approach is applicable for systems where only Kirchhoff convective transport and transfer processes with equilibrium take place. Systems with constant mass holdup in every balancing volume satisfy the condition of Kirchhoff convection. The general results are illustrated in examples of practical importance including heat exchanger networks, multicomponent flash, and multicomponent distillation with constant molar flows. |
BibTeX:
@article{Hangos1999c, author = {Hangos, K. M. and Alonso, A. A. and Perkins, J. D. and Ydstie, B. E.}, title = {Thermodynamic approach to the structural stability of process plants}, journal = {Aiche Journal}, year = {1999}, volume = {45}, number = {4}, pages = {802--816} } |
Hangos KM, Bokor J and Szederkényi G (2000), "Grey box characterization of nonlinear process systems", In Proceedings of the 9th Nordic Process Control Workshop. , pp. 89-105.
[BibTeX] |
BibTeX:
@conference{Hangos2000a, author = {K. M. Hangos and J. Bokor and G. Szederkényi}, title = {Grey box characterization of nonlinear process systems}, booktitle = {Proceedings of the 9th Nordic Process Control Workshop}, year = {2000}, pages = {89--105} } |
Hangos KM, Bokor J and Szederkényi G (2000), "Analysis and Control of Nonlinear Process Systems" Budapest, Hungary (SCL-03-2000)
[BibTeX] |
BibTeX:
@techreport{Hangos2000, author = {K. M. Hangos and J. Bokor and G. Szederkényi}, title = {Analysis and Control of Nonlinear Process Systems}, year = {2000}, number = {SCL-03-2000} } |
Hangos KM and Cameron IT (2001), "A formal representation of assumptions in process modelling", Computers & Chemical Engineering. Vol. 25(2-3), pp. 237-255. |
Abstract: In this work, we present a systematic approach to the representation of modelling assumptions. Modelling assumptions form the fundamental basis for the mathematical description of a process system. These assumptions can be translated into either additional mathematical relationships or constraints between model variables, equations, balance volumes or parameters. In order to analyse the effect of modelling assumptions in a formal, rigorous way, a syntax of modelling assumptions has been defined. The smallest indivisible syntactical element, the so called assumption atom has been identified as a triplet. With this syntax a modelling assumption can be described as an elementary assumption, i.e. an assumption consisting of only an assumption atom or a composite assumption consisting of a conjunction of elementary assumptions. The above syntax of modelling assumptions enables us to represent modelling assumptions as transformations acting on the set of model equations. The notion of syntactical correctness and semantical consistency of sets of modelling assumptions is defined and necessary conditions for checking them are given. These transformations can be used in several ways and their implications can be analysed by formal methods. The modelling assumptions define model hierarchies. That is, a series of model families each belonging to a particular equivalence class. These model equivalence classes can be related to primal assumptions regarding the definition of mass, energy and momentum balance volumes and to secondary and tiertinary assumptions regarding the presence or absence and the form of mechanisms within the system. Within equivalence classes, there are many model members, these being related to algebraic model transformations for the particular model. We show how these model hierarchies are driven by the underlying assumption structure and indicate some implications on system dynamics and complexity issues. (C) 2001 Elsevier Science Ltd. All rights reserved. |
BibTeX:
@article{Hangos2001, author = {Hangos, K. M. and Cameron, I. T.}, title = {A formal representation of assumptions in process modelling}, journal = {Computers & Chemical Engineering}, year = {2001}, volume = {25}, number = {2-3}, pages = {237--255} } |
Hangos KM and Cameron IT (1997), "The formal representation of process system modelling assumptions and their implications", Computers & Chemical Engineering. Vol. 21, pp. S823-S828. |
Abstract: In order to analyse the effect of modelling assumptions in a formal, rigorous way, a syntax of modelling assumptions has been defined. The syntax of modelling assumptions enables us to represent modelling assumptions as transformations acting on the set of model equations. The notion of syntactical correctness and semantical consistency of sets of modelling assumptions is defined and methods for checking them are described. It is shown on a simple example how different modelling assumptions act on the model equations and their effect on the differential index of the resulted model is also indicated. |
BibTeX:
@article{Hangos1997b, author = {Hangos, K. M. and Cameron, I. T.}, title = {The formal representation of process system modelling assumptions and their implications}, journal = {Computers & Chemical Engineering}, year = {1997}, volume = {21}, pages = {S823--S828} } |
Hangos KM, Csáki Z and Jorgensen SB (1992), "Qualitative Model-Based Intelligent Control Of A Distillation Column", Engineering Applications Of Artificial Intelligence. Vol. 5(5), pp. 431-440. |
Abstract: A method for the development and use of qualitative differential equations for model-based generation of operating procedures has been described in this paper. Qualitative models play a double role in this framework: they are the subject of reasoning for determining the locally advantageous actions, and they are used for qualitative prediction of the system behaviour subject to these actions. This approach allows the methods and tools of artificial intelligence to be integrated into process control systems, conserving the basic approach and system structure by using qualitative models and inference instead of conventional models and prediction for intelligent model-based control. For advice generation a special method, called the extended qualitative simulation (EQSIM) algorithm, has been developed and is discussed in detail. The method and a qualitative model-based advice generating system have been illustrated on the example of generating start-up advice for a pilot-plant distillation column with energy feedback. |
BibTeX:
@article{HANGOS1992, author = {Hangos, K. M. and Csáki, Z. and Jorgensen, S. B.}, title = {Qualitative Model-Based Intelligent Control Of A Distillation Column}, journal = {Engineering Applications Of Artificial Intelligence}, year = {1992}, volume = {5}, number = {5}, pages = {431--440} } |
Hangos KM and G.Szederkényi (2012), "The underlying linear dynamics of some positive polynomial systems", Physics Letters A. Vol. 376, pp. 3129-3134. |
BibTeX:
@article{Hangos2012b, author = {K. M. Hangos and G.Szederkényi}, title = {The underlying linear dynamics of some positive polynomial systems}, journal = {Physics Letters A}, year = {2012}, volume = {376}, pages = {3129-3134}, doi = {10.1016/j.physleta.2012.10.004} } |
Hangos KM and Hallager L (1992), "Model Structure Determination For A Heat-Pump System", Identification And System Parameter Estimation 1991, Vols 1 And 2. Vol. 1992, pp. 573-577.
[BibTeX] |
BibTeX:
@article{HANGOS1992a, author = {Hangos, K. M. and Hallager, L.}, title = {Model Structure Determination For A Heat-Pump System}, journal = {Identification And System Parameter Estimation 1991, Vols 1 And 2}, year = {1992}, volume = {1992}, pages = {573--577} } |
Hangos KM, Hallager L, Csáki Z and Jorgensen SB (1991), "A Qualitative Model For Simulation Of The Start-Up Of A Distillation Column With Energy Feedback", Computer-Oriented Process Engineering. Vol. 10, pp. 87-92.
[BibTeX] |
BibTeX:
@article{HANGOS1991, author = {Hangos, K. M. and Hallager, L. and Csáki, Z. and Jorgensen, S. B.}, title = {A Qualitative Model For Simulation Of The Start-Up Of A Distillation Column With Energy Feedback}, journal = {Computer-Oriented Process Engineering}, year = {1991}, volume = {10}, pages = {87--92} } |
Hangos KM and Keviczky L (2015), "MIMO decoupling control design for Lotka-Volterra Systems", In Controllare Necesse Est: Proceedings of the Workshop Organized in Honor of László Keviczky, June 3, Budapest, Hungary. , pp. 125-128. |
BibTeX:
@conference{Hangos2015a, author = {K. M. Hangos and L. Keviczky}, editor = {Cs. Bányász}, title = {MIMO decoupling control design for Lotka-Volterra Systems}, booktitle = {Controllare Necesse Est: Proceedings of the Workshop Organized in Honor of László Keviczky, June 3, Budapest, Hungary}, year = {2015}, pages = {125-128}, note = {ISBN:978-615-5298-57-8} } |
Hangos KM and Leisztner L (1989), "Towards Properly Controlled Analytical Measurement Methods", Journal Of Automatic Chemistry. Vol. 11(2), pp. 76-79.
[BibTeX] |
BibTeX:
@article{HANGOS1989, author = {Hangos, K. M. and Leisztner, L.}, title = {Towards Properly Controlled Analytical Measurement Methods}, journal = {Journal Of Automatic Chemistry}, year = {1989}, volume = {11}, number = {2}, pages = {76--79} } |
Hangos KM and Leisztner L (1987), "The Systematic-Error Caused By Random Errors Through Data Reduction", Journal Of Automatic Chemistry. Vol. 9(1), pp. 25-29.
[BibTeX] |
BibTeX:
@article{HANGOS1987, author = {Hangos, K. M. and Leisztner, L.}, title = {The Systematic-Error Caused By Random Errors Through Data Reduction}, journal = {Journal Of Automatic Chemistry}, year = {1987}, volume = {9}, number = {1}, pages = {25--29} } |
Hangos KM, Leisztner L and Kárny M (1989), "Calibration And Measurement Control Based On Bayes Statistics", Journal Of Automatic Chemistry. Vol. 11(4), pp. 149-155.
[BibTeX] |
BibTeX:
@article{HANGOS1989a, author = {Hangos, K. M. and Leisztner, L. and Kárny, M.}, title = {Calibration And Measurement Control Based On Bayes Statistics}, journal = {Journal Of Automatic Chemistry}, year = {1989}, volume = {11}, number = {4}, pages = {149--155} } |
Hangos KM, Magyar A and Szederkényi G (2015), "Entropy-inspired Lyapunov Functions and Linear First Integrals for Positive Polynomial Systems", Mathematical Modelling of Natural Phenomena. Vol. 10, pp. 105-123. |
BibTeX:
@article{Hangos2015, author = {K. M. Hangos and Magyar, A. and G. Szederkényi}, title = {Entropy-inspired Lyapunov Functions and Linear First Integrals for Positive Polynomial Systems}, journal = {Mathematical Modelling of Natural Phenomena}, year = {2015}, volume = {10}, pages = {105-123}, doi = {10.1051/mmnp/201510309} } |
Hangos KM, Nagy JL and Leisztner L (1986), "Automatic Detection Of The Autocorrelation-Type Measurement Error Component", Journal Of Automatic Chemistry. Vol. 8(1), pp. 23-27.
[BibTeX] |
BibTeX:
@article{HANGOS1986, author = {Hangos, K. M. and Nagy, J. L. and Leisztner, L.}, title = {Automatic Detection Of The Autocorrelation-Type Measurement Error Component}, journal = {Journal Of Automatic Chemistry}, year = {1986}, volume = {8}, number = {1}, pages = {23--27} } |
Hangos KM, Németh E, Lakner R and Tóth A (2010), "Detectability and diagnosability of faults in lumped process systems", In 20th European Symposium on Computer Aided Process Engineering -- ESCAPE20. , pp. 1447-1452. Elsevier. |
BibTeX:
@conference{Hangos2010b, author = {Hangos, K. M. and Németh, E. and Lakner, R. and Tóth, A.}, editor = {S. Pierucci and G. Buzzi Ferraris}, title = {Detectability and diagnosability of faults in lumped process systems}, booktitle = {20th European Symposium on Computer Aided Process Engineering -- ESCAPE20}, publisher = {Elsevier}, year = {2010}, pages = {1447-1452} } |
Hangos KM and Perkins JD (1997), "Structural stability of chemical process plants", Aiche Journal. Vol. 43(6), pp. 1511-1518. |
Abstract: The problem of analyzing the stability of chemical process plants is considered. The idea of exchange plants has been extended with more general binary transfer terms and binary equilibrium, resulting in the idea of binary exchange-equilibrium plants. Their structural stability is analyzed using results on conservation matrices. It was found that binary exchange-equilibrium plants with no azeotropes are stable irrespective of the connections of their operating units. The general results are illustrated in examples of practical importance: heat-exchanger networks and binary distillation columns with constant molar flows. |
BibTeX:
@article{Hangos1997, author = {Hangos, K. M. and Perkins, J. D.}, title = {Structural stability of chemical process plants}, journal = {Aiche Journal}, year = {1997}, volume = {43}, number = {6}, pages = {1511--1518} } |
Hangos KM and Ruppert L (2011), "Quantum Probability and White Noise Analysis, Volume XXVII" , pp. 163-180. World Scientific. |
BibTeX:
@inbook{Hangos2011a, author = {K. M. Hangos and L. Ruppert}, editor = {R. Rebolledo and M. Orszag}, title = {Quantum Probability and White Noise Analysis, Volume XXVII}, publisher = {World Scientific}, year = {2011}, pages = {163-180} } |
Hangos KM and Szederkényi G (2009), "Special Positive Systems: the QP and the Reaction Kinetic System Class", In Proceedings of the Workshop on Systems and Control Theory in honor of József Bokor on his 60th birthday. , pp. 121-139. BME AVVC, MTA-SZTAKI. |
BibTeX:
@conference{Hangos2009, author = {K. M. Hangos and G. Szederkényi}, editor = {K. M. Hangos and L. Nádai}, title = {Special Positive Systems: the QP and the Reaction Kinetic System Class}, booktitle = {Proceedings of the Workshop on Systems and Control Theory in honor of József Bokor on his 60th birthday}, publisher = {BME AVVC, MTA-SZTAKI}, year = {2009}, pages = {121-139}, note = {ISBN: 963-279-039-8} } |
Hangos KM and Szederkényi G (2014), "Springer Proceedings in Mathematics and Statistics" Vol. 94, pp. 105-119. Spring. |
BibTeX:
@inbook{Hangos2014a, author = {K. M. Hangos and G. Szederkényi}, editor = {F. Hartung and M. Pituk}, title = {Springer Proceedings in Mathematics and Statistics}, publisher = {Spring}, year = {2014}, volume = {94}, pages = {105-119}, note = {ISBN: 978-331908250-9}, doi = {10.1007/978-3-319-08251-6_3} } |
Hangos KM and Szederkényi G (2014), "A model structure-driven hierarchical decentralized stabilizing control structure for process networks", Journal of Process Control. Vol. 24(9), pp. 1358-1370. |
Abstract: Based on the structure of process models a hierarchically structured state-space model has been proposed for process networks with controlled mass convection and constant physico-chemical properties. Using the theory of cascade-connected nonlinear systems and the properties of Metzler and Hurwitz matrices it is shown that process systems with controlled mass convection and without sources or with stabilizing linear source terms are globally asymptotically stable. The hierarchically structured model gives rise to a distributed controller structure that is in agreement with the traditional hierarchical process control system structure where local controllers are used for mass inventory control and coordinating controllers are used for optimizing the system dynamics. The proposed distributed controller is illustrated on a simple non-isotherm jacketed chemical reactor. |
BibTeX:
@article{Hangos2014, author = {K. M. Hangos and G. Szederkényi}, title = {A model structure-driven hierarchical decentralized stabilizing control structure for process networks}, journal = {Journal of Process Control}, year = {2014}, volume = {24}, number = {9}, pages = {1358-1370}, doi = {10.1016/j.jprocont.2014.06.003} } |
Hangos KM and Szederkényi G (2014), "The effect of transformations on the structural dynamical properties of chemical reaction networks", In The 21st International Symposium on Mathematical Theory of Networks and Systems, MTNS 2014, 07. 07 - 07. 11, 2014, Groningen, The Netherlands. , pp. 894-899. |
BibTeX:
@conference{Hangos2014b, author = {K. M. Hangos and G. Szederkényi}, title = {The effect of transformations on the structural dynamical properties of chemical reaction networks}, booktitle = {The 21st International Symposium on Mathematical Theory of Networks and Systems, MTNS 2014, 07. 07 - 07. 11, 2014, Groningen, The Netherlands}, year = {2014}, pages = {894-899}, note = {ISBN:978-90-367-6321-9} } |
Hangos KM and Szederkényi G (2011), "Mass action realizations of reaction kinetic system models on various time scales", Journal of Physics: Conference Series (5th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS 2010))., In 5th International Workshop on MULTI-RATE PROCESSES & HYSTERESIS in Mathematics, Physics, Engineering and Information Sciences - MURPHYS 2010, Pécs, Hungary, 31 May - 3 June. Vol. 268, pp. 012009. |
BibTeX:
@article{Hangos2011, author = {K. M. Hangos and G. Szederkényi}, title = {Mass action realizations of reaction kinetic system models on various time scales}, booktitle = {5th International Workshop on MULTI-RATE PROCESSES & HYSTERESIS in Mathematics, Physics, Engineering and Information Sciences - MURPHYS 2010, Pécs, Hungary, 31 May - 3 June}, journal = {Journal of Physics: Conference Series (5th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS 2010))}, year = {2011}, volume = {268}, pages = {012009}, doi = {10.1088/1742-6596/268/1/012009} } |
Hangos KM and Szederkényi G (1999), "Dinamikus Rendszerek Paramétereinek Becslése (Lecture Notes)" Veszprém Veszprémi Egyetemi Kiadó.
[BibTeX] |
BibTeX:
@book{Hangos1999, author = {K. M. Hangos and G. Szederkényi}, title = {Dinamikus Rendszerek Paramétereinek Becslése (Lecture Notes)}, publisher = {Veszprémi Egyetemi Kiadó}, year = {1999} } |
Hangos KM, Szederkényi G and Alonso AA (2013), "Reaction kinetic form of lumped process system models", In IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France. , pp. 48-53. |
BibTeX:
@conference{Hangos2013b, author = {K. M. Hangos and G. Szederkényi and A. A. Alonso}, editor = {B. E. Ydstie and B. Maschke and D. Dochain}, title = {Reaction kinetic form of lumped process system models}, booktitle = {IFAC Workshop on Thermodynamic Foundations of Mathematical Systems Theory, July 13-16, Lyon, France}, year = {2013}, pages = {48-53}, note = {ISBN: 978-3-902823-40-3}, doi = {10.3182/20130714-3-FR-4040.00002} } |
Hangos KM, Szederkényi G and Bokor J (1999), "Grey-Box Characterization of Nonlinear Process Systems" Budapest, Hungary (SCL-01-1999)
[BibTeX] |
BibTeX:
@techreport{Hangos1999a, author = {K. M. Hangos and G. Szederkényi and J. Bokor}, title = {Grey-Box Characterization of Nonlinear Process Systems}, year = {1999}, number = {SCL-01-1999} } |
Hangos KM and Tóth J (1988), "Maximum-Likelihood Estimation Of Reaction-Rate Constants", Computers & Chemical Engineering. Vol. 12(2-3), pp. 135-139.
[BibTeX] |
BibTeX:
@article{HANGOS1988, author = {Hangos, K. M. and Tóth, J.}, title = {Maximum-Likelihood Estimation Of Reaction-Rate Constants}, journal = {Computers & Chemical Engineering}, year = {1988}, volume = {12}, number = {2-3}, pages = {135--139} } |
Hangos KM and Tuza Z (2001), "Optimal control structure selection for process systems", Computers & Chemical Engineering. Vol. 25(11-12), pp. 1521-1536. |
Abstract: The problem of process structure driven distributed controller structure selection is addressed in this paper using graph-theoretical methods. The process structure is represented by a directed graph describing the variable structure of the lumped non-linear state space model of the process system. Weights can also be associated to the edges of the structure graph and a one-to-one correspondence can be made between a linearized state space model and the weighted digraph. Two types of distributed controller structures: the stabilizing and disturbance rejective ones are investigated. The optimal stabilizing structures minimize the coupling and the optimal disturbance rejective ones have minimal interaction defined in both of the unweighted and weighted cases. For single input single output stabilizing and disturbance rejective controllers the formulated optimal controller structure selection problem is shown to be solvable in polynomial time. Efficient algorithms for determining the optimal stabilizing controller structure are proposed, based on the algorithms solving the well known Maximum Weighted Matching problem. The concepts and methods are illustrated on a simple example and on the Tennessee Eastman benchmark problem. (C) 2001 Elsevier Science Ltd. All rights reserved. |
BibTeX:
@article{Hangos2001b, author = {Hangos, K. M. and Tuza, Z.}, title = {Optimal control structure selection for process systems}, journal = {Computers & Chemical Engineering}, year = {2001}, volume = {25}, number = {11-12}, pages = {1521--1536} } |
Hangos KM and Tuza Z (1999), "Process model structure simplification", Computers & Chemical Engineering. Vol. 23, pp. S343-S346. |
Abstract: We formulate the problem of model simplification and list some important properties it should preserve. Two main types are described, acting on one and two state variables, respectively. These simplification steps can be represented as graph transformations acting on the structure graphs of the dynamic process models. The effect of the simplification transformations on the structural dynamic properties of the model is also investigated. |
BibTeX:
@article{Hangos1999d, author = {Hangos, K. M. and Tuza, Z.}, title = {Process model structure simplification}, journal = {Computers & Chemical Engineering}, year = {1999}, volume = {23}, pages = {S343--S346} } |
Hangos KM and Tuza Z (1997), "Computational aspects of graph theoretic methods in control", Computer-Intensive Methods In Control And Signal Processing., In Computer-Intensive Methods In Control And Signal Processing. , pp. 73-92. |
Abstract: Various types of control problems related to distributed control system structure design, such as the analysis of structural controllability and observability, analysis of disturbance rejectivity, analysis of structural stability, design of distributed SISO (single input single output) controller system structures, and the design of distributed MIMO (multiple input multiple output) controller system structures, are described in the paper as algorithmic problems. Their equivalent graph theoretic problems and their algorithmic properties are also analysed. It is shown that the analysis of structural controllability and observability as well as structural disturbance rejectivity has polynomial time complexity. The structure design problems of stabilizing distributed SISO controller systems are polynomial, while in the general case of MIMO controllers the problems are harder. The same holds for distributed disturbance rejective controller system structure design problems: they may lead to polynomial graph theoretic problems in the SISO case, while they are NP-hard for the general MIMO case. |
BibTeX:
@conference{Hangos1997a, author = {Hangos, K. M. and Tuza, Z.}, title = {Computational aspects of graph theoretic methods in control}, booktitle = {Computer-Intensive Methods In Control And Signal Processing}, journal = {Computer-Intensive Methods In Control And Signal Processing}, year = {1997}, pages = {73--92} } |
Hangos KM, Tuza Z and Yeo A (2009), "Some complexity problems on single input double output controllers", Discrete Applied Mathematics. Vol. 157, pp. 1146–1158. |
BibTeX:
@article{Hangos2008, author = {K. M. Hangos and Zs. Tuza and A. Yeo}, title = {Some complexity problems on single input double output controllers}, journal = {Discrete Applied Mathematics}, year = {2009}, volume = {157}, pages = {1146–1158}, doi = {10.1016/j.dam.2008.03.028} } |
Hangos KM and Varga EI (1995), "Note On The Effect Of Recycle On The Dynamics Of Chemical Process Plants", Computers & Chemical Engineering. Vol. 19(5), pp. 607-610. |
Abstract: The complex multivariate multiunit problem formulation of analyzing the effect of recycles on the dynamics of chemical process plants is considered in this Note. Based on the notion of exchange plants and results on conservation matrices, the effect of connections, such as recycles and external sources, such as chemical reaction, heating/cooling etc. is analysed. It has been found that exchange plants are not unstable, regardless of the connections of their operating units. If constant total flow is maintained through each unit then an increase of all kinds of connections including recycles at the expense of an external stream may move the eigenvalues of the plant towards the instability region. This effect can cause stable nonexchange plants to become unstable. |
BibTeX:
@article{HANGOS1995, author = {Hangos, K. M. and Varga, E. I.}, title = {Note On The Effect Of Recycle On The Dynamics Of Chemical Process Plants}, journal = {Computers & Chemical Engineering}, year = {1995}, volume = {19}, number = {5}, pages = {607--610} } |
Hangos KM, Varga JB, Friedler F and Fan LT (1995), "Integrated Synthesis Of A Process And Its Fault-Tolerant Control-System", Computers & Chemical Engineering. Vol. 19, pp. S465-S470. |
Abstract: The previously developed method for integrated process and control system (IPCS) synthesis (Hangos et al., 1994) has been extended to the cases for which process safety or reliability is of primary concern. An unambiguous representation of the resultant integrated process and fault-tolerant control system structure, IPFCS structure in brief, is rendered possible through the CP-graph originally proposed for IPCS synthesis. A new axiom for the fault-tolerant controllability is established; it states that more than one independent control path are required for each controlled variable. The fundamental combinatorial algorithm of IPCS synthesis, i.e., algorithm CMSG, has been revised so that the modified set of axioms is capable of identifying the controllable, fault-tolerant structures of an IPFCS synthesis problem. The efficacy of the proposed method for IPFCS synthesis method is demonstrated with a relatively simple example by systematically varying the level of the fault tolerance. |
BibTeX:
@article{HANGOS1995a, author = {Hangos, K. M. and Varga, J. B. and Friedler, F. and Fan, L. T.}, title = {Integrated Synthesis Of A Process And Its Fault-Tolerant Control-System}, journal = {Computers & Chemical Engineering}, year = {1995}, volume = {19}, pages = {S465--S470} } |
Hangos KM and Virág T (1986), "The Effect Of Point-Like Noise Sources On Chemical Distributed Parameter-Systems", Lecture Notes In Control And Information Sciences. Vol. 84, pp. 298-303.
[BibTeX] |
BibTeX:
@article{HANGOS1986a, author = {Hangos, K. M. and Virág, T.}, title = {The Effect Of Point-Like Noise Sources On Chemical Distributed Parameter-Systems}, journal = {Lecture Notes In Control And Information Sciences}, year = {1986}, volume = {84}, pages = {298--303} } |
Hannemann-Tamás R, Gábor A, Szederkényi G and Hangos KM (2012), "Model complexity reduction of chemical reaction networks using mixed-integer quadratic programming", Computers & Mathematics with Applications. Vol. to appear, pp. available online. |
BibTeX:
@article{Hannemann-Tamas2012, author = {R. Hannemann-Tamás and A. Gábor and G. Szederkényi and K. M. Hangos}, title = {Model complexity reduction of chemical reaction networks using mixed-integer quadratic programming}, journal = {Computers & Mathematics with Applications}, year = {2012}, volume = {to appear}, pages = {available online}, doi = {10.1016/j.camwa.2012.11.024} } |
Hannemann-Tamás R, Gábor A, Szederkényi G and K.M. H (2013), "Model complexity reduction of chemical reaction networks using mixed-integer quadratic computing", Computers and Mathematics with Applications. Vol. 65, pp. 1575-1595. |
BibTeX:
@article{Hannemann-Tamas2013, author = {Hannemann-Tamás, R. and Gábor, A. and Szederkényi, G. and Hangos K.M.}, title = {Model complexity reduction of chemical reaction networks using mixed-integer quadratic computing}, journal = {Computers and Mathematics with Applications}, year = {2013}, volume = {65}, pages = {1575-1595}, note = {ISSN: 0898-1221} } |
Holderith J and Hangos K (1979), "Multilevel Mathematical-Modeling Of Multiphase Chemical Reactors .2. Own-Scales As Possible Means Of Information-Transfer Between Partial Models Of Different Levels", Magyar Kémiai Folyoirat. Vol. 85(1), pp. 35-38.
[BibTeX] |
BibTeX:
@article{HOLDERITH1979, author = {Holderith, J. and Hangos, K.}, title = {Multilevel Mathematical-Modeling Of Multiphase Chemical Reactors .2. Own-Scales As Possible Means Of Information-Transfer Between Partial Models Of Different Levels}, journal = {Magyar Kémiai Folyoirat}, year = {1979}, volume = {85}, number = {1}, pages = {35--38} } |
Ingram GD, Cameron IT and Hangos KM (2004), "Classification and analysis of integrating frameworks in multiscale modelling", Chemical Engineering Science. Vol. 59(11), pp. 2171-2187. |
Abstract: Chemical engineers are turning to multiscale modelling to extend traditional modelling approaches into new application areas and to achieve higher levels of detail and accuracy. There is, however, little advice available on the best strategy to use in constructing a multiscale model. This paper presents a starting point for the systematic analysis of multiscale models by defining several integrating frameworks for linking models at different scales. It briefly explores how the nature of the information flow between the models at the different scales is influenced by the choice of framework, and presents some restrictions on model-framework compatibility. The concepts are illustrated with reference to the modelling of a catalytic packed bed reactor. (C) 2004 Elsevier Ltd. All rights reserved. |
BibTeX:
@article{Ingram2004, author = {Ingram, G. D. and Cameron, I. T. and Hangos, K. M.}, title = {Classification and analysis of integrating frameworks in multiscale modelling}, journal = {Chemical Engineering Science}, year = {2004}, volume = {59}, number = {11}, pages = {2171--2187}, doi = {10.1016/j.ces.2004.02.010} } |
Ingram GD, Leitold A and Hangos KM (2004), "Structural analysis of the computational properties of QP-DAE systems", European Symposium On Computer-Aided Process Engineering - 14. Vol. 18, pp. 1063-1068. |
Abstract: Many lumped dynamic models of process systems can be written without approximation in quasi-polynomial differential-algebraic equation (QP-DAE) form. We propose nonlinearity indices for QP-DAEs based on the system invariants. There are global (whole model) and local versions of the indices. The local ones are based on the implicit subsets (essential L-components) of the model. The indices are assessed against simulations of a vaporiser model with adjustable nonlinearity. |
BibTeX:
@article{Ingram2004a, author = {Ingram, G. D. and Leitold, A. and Hangos, K. M.}, title = {Structural analysis of the computational properties of QP-DAE systems}, journal = {European Symposium On Computer-Aided Process Engineering - 14}, year = {2004}, volume = {18}, pages = {1063--1068} } |
Johnston MD, Siegel D and Szederkényi G (2013), "Computing weakly reversible linearly conjugate chemical reaction networks with minimal deficiency", Mathematical Biosciences. Vol. 241, pp. 88-98. |
BibTeX:
@article{Johnston2013, author = {M. D. Johnston and D. Siegel and G. Szederkényi}, title = {Computing weakly reversible linearly conjugate chemical reaction networks with minimal deficiency}, journal = {Mathematical Biosciences}, year = {2013}, volume = {241}, pages = {88-98}, note = {ISSN: 0025-5564}, doi = {10.1016/j.mbs.2012.09.008} } |
Johnston MD, Siegel D and Szederkényi G (2012), "A linear programming approach to weak reversibility and linear conjugacy of chemical reaction networks", Journal of Mathematical Chemistry. Vol. 50, pp. 274-288. |
Abstract: A numerically effective procedure for determining weakly reversible chemical reaction networks that are linearly conjugate to a known reaction network is proposed in this paper. The method is based on translating the structural and algebraic characteristics of weak reversibility to logical statements and solving the obtained set of linear (in)equalities in the framework of mixed integer linear programming. The unknowns in the problem are the reaction rate coefficients and the parameters of the linear conjugacy transformation. The efficacy of the approach is shown through numerical examples. |
BibTeX:
@article{Johnston2012, author = {M. D. Johnston and D. Siegel and G. Szederkényi}, title = {A linear programming approach to weak reversibility and linear conjugacy of chemical reaction networks}, journal = {Journal of Mathematical Chemistry}, year = {2012}, volume = {50}, pages = {274-288}, doi = {10.1007/s10910-011-9911-7} } |
Johnston MD, Siegel D and Szederkényi G (2012), "Dynamical equivalence and linear conjugacy of chemical reaction networks: new results and methods", MATCH Commun. Math. Comput. Chem.. Vol. 68, pp. 443-468. |
BibTeX:
@article{Johnston2012a, author = {M. D. Johnston and D. Siegel and G. Szederkényi}, title = {Dynamical equivalence and linear conjugacy of chemical reaction networks: new results and methods}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2012}, volume = {68}, pages = {443-468} } |
Johnston MD, Siegel D and Szederkényi G (2012), "Computing Linearly Conjugate Chemical Reaction Networks with Minimal Deficiency", In SIAM Conference on the Life Sciences -- SIAM LS 2012, 7-10 August, San Diego, USA. , pp. MS1-2-45.
[BibTeX] |
BibTeX:
@conference{Johnston2012b, author = {M. D. Johnston and D. Siegel and G. Szederkényi}, title = {Computing Linearly Conjugate Chemical Reaction Networks with Minimal Deficiency}, booktitle = {SIAM Conference on the Life Sciences -- SIAM LS 2012, 7-10 August, San Diego, USA}, year = {2012}, pages = {MS1-2-45} } |
Jones D, Moody G, Thomas J and Hangos KM (1979), "Interferences of a barium ion-selective electrode used for the potentiometric titration of sulphate", The Analyst. Vol. 104, pp. 973-976. |
BibTeX:
@article{Jones1979, author = {Jones, D.L. and Moody, GJ and Thomas, JDR and Hangos, K. M.}, title = {Interferences of a barium ion-selective electrode used for the potentiometric titration of sulphate}, journal = {The Analyst}, year = {1979}, volume = {104}, pages = {973--976}, doi = {10.1039/AN9790400973} } |
Jorgensen S and Hangos K (1994), "Grey-box modeling for identification and control: an emerging discipline or an established technology?", In SYSID'94 Conference (IFAC). , pp. 231-236.
[BibTeX] |
BibTeX:
@conference{Joergensen1994, author = {S.B. Jorgensen and K.M. Hangos}, title = {Grey-box modeling for identification and control: an emerging discipline or an established technology?}, booktitle = {SYSID'94 Conference (IFAC)}, year = {1994}, pages = {231-236} } |
Jorgensen SB and Hangos KM (1995), "Grey Box Modeling For Control - Qualitative Models As A Unifying Framework", International Journal Of Adaptive Control And Signal Processing. Vol. 9(6), pp. 547-562. |
Abstract: Grey box modelling traditionally reflects that both a priori and experimental knowledge are being incorporated into the model-building process, where both of them may exhibit uncertain character. A brief investigation into various grey box modelling approaches reveals that they differ mainly with respect to the required model accuracy. Moreover, the goal of the model application has to be considered in the model building, since this goal defines the desired accuracy of the model, which is represented as model uncertainty. This paper advocates the view that grey box modelling is model building which incorporates uncertainty description. Qualitative differential and algebraic equations are proposed in this paper as a unifying framework for development of dynamic models with uncertainty. The steps in the model development cycle are defined for this unifying framework, wherein the computational complexity issues are addressed at each step. It is also shown how qualitative differential and algebraic equations can be specialized to important well-known grey box model forms such as robust models with parametric uncertainty, constraint qualitative differential equations and digraph models. The presented concepts and grey box model forms are illustrated on a simple example: a heat exchanger with bypass. |
BibTeX:
@article{JORGENSEN1995, author = {Jorgensen, S. B. and Hangos, K. M.}, title = {Grey Box Modeling For Control - Qualitative Models As A Unifying Framework}, journal = {International Journal Of Adaptive Control And Signal Processing}, year = {1995}, volume = {9}, number = {6}, pages = {547--562} } |
Kanyár B, Eged K, Kis Z, Nényei Á and Szederkényi G (1999), "Radionuklidok transzportjának modellezése a talaj-növény rendszerek esetén, szcenárió vizsgálatok", In Új módszerek a mezögazdaságban. Szarvas, Hungary
[BibTeX] |
BibTeX:
@conference{Kanyar1999, author = {B. Kanyár and K. Eged and Z. Kis and Á. Nényei and G. Szederkényi}, title = {Radionuklidok transzportjának modellezése a talaj-növény rendszerek esetén, szcenárió vizsgálatok}, booktitle = {Új módszerek a mezögazdaságban}, year = {1999} } |
Kárny M and Hangos K (1988), "One-sided approximation of Bayes rule: theoretical background", In Proc. 10th Triennal World Congress. Oxford-New York etc Vol. Vol. X, pp. 311-316. Pergamon Press.
[BibTeX] |
BibTeX:
@conference{Karny1988a, author = {M. Kárny and K.M. Hangos}, editor = {R. Isermann}, title = {One-sided approximation of Bayes rule: theoretical background}, booktitle = {Proc. 10th Triennal World Congress}, publisher = {Pergamon Press}, year = {1988}, volume = {Vol. X}, pages = {311-316} } |
Kárny M and Hangos K (1999), "On probabilistic modelling in fault detection", In ECC 99. European Control Conference. , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Karny1999, author = {M. Kárny and K.M. Hangos}, title = {On probabilistic modelling in fault detection}, booktitle = {ECC 99. European Control Conference}, year = {1999}, pages = {on CD} } |
Kárny M and Hangos K (1985), "Approximation of the Bayes rule", In Prep. 7th IFAC Symposium on Identification and System Parameter Estimation. York, U.K Vol. Vol. 1, pp. 1755-1760.
[BibTeX] |
BibTeX:
@conference{Karny1985, author = {M. Kárny and K.M. Hangos}, title = {Approximation of the Bayes rule}, booktitle = {Prep. 7th IFAC Symposium on Identification and System Parameter Estimation}, year = {1985}, volume = {Vol. 1}, pages = {1755-1760} } |
Kárny M and Hangos KM (1989), "Decision-Theoretical Formulation Of The Calibration-Problem", Journal Of Automatic Chemistry. Vol. 11(2), pp. 70-75.
[BibTeX] |
BibTeX:
@article{KARNY1989, author = {Kárny, M. and Hangos, K. M.}, title = {Decision-Theoretical Formulation Of The Calibration-Problem}, journal = {Journal Of Automatic Chemistry}, year = {1989}, volume = {11}, number = {2}, pages = {70--75} } |
Kárny M and Hangos KM (1988), "One-Sided Approximation Of Bayes Rule And Its Application To Regression-Model With Cauchy Noise", Kybernetika. Vol. 24(5), pp. 321-339.
[BibTeX] |
BibTeX:
@article{KARNY1988, author = {Kárny, M. and Hangos, K. M.}, title = {One-Sided Approximation Of Bayes Rule And Its Application To Regression-Model With Cauchy Noise}, journal = {Kybernetika}, year = {1988}, volume = {24}, number = {5}, pages = {321--339} } |
Kovács Á, Németh E and Hangos K (2004), "Coloured Petri net model of a simple runway" |
BibTeX:
@techreport{Kovacs2004, author = {Á. Kovács and E. Németh and K.M. Hangos}, title = {Coloured Petri net model of a simple runway}, year = {2004}, url = {http:/daedalus.scl.sztaki.hu/} } |
Kovács Á, Németh E and Hangos KM (2005), "Modeling and optimization of runway traffic flow using coloured Petri nets", 2005 International Conference on Control and Automation (ICCA), Vols 1 and 2., In 2005 International Conference on Control and Automation (ICCA), Vols 1 and 2. , pp. 881-886. |
Abstract: A timed stochastic coloured Petri net (CPN) model of a single runway is presented in this paper that is capable of analyzing the effect of the availability of taxiways on the capacity of the runway and on the timing of a given schedule. The developed CPN model is governed by elementary Air Traffic Control (ATC) principles (one aircraft at a time on runway, arrivals priority on departures), and takes the effect of the aircraft threshold speed categories and their landing weights into account. The model is realized by using the Design/CPN program package. The model has been verified and validated by using runway occupancy times generated by REDIM. For planning optimal sequences a small scale window method is used. |
BibTeX:
@conference{Kovacs2005, author = {Kovács, Á. and Németh, E. and Hangos, K. M.}, title = {Modeling and optimization of runway traffic flow using coloured Petri nets}, booktitle = {2005 International Conference on Control and Automation (ICCA), Vols 1 and 2}, journal = {2005 International Conference on Control and Automation (ICCA), Vols 1 and 2}, year = {2005}, pages = {881--886} } |
Kovács GZ and Hangos KM (1998), "Notes on mu and l(1) robustness tests", Kybernetika. Vol. 34(5), pp. 565-578. |
Abstract: An upper bound for the complex structured singular value related to a linear time-invariant system over all frequencies is given. It is in the form of the spectral radius of the H-infinity-norm matrix of SISO input-output channels of the system when uncertainty blocks are SISO. In the case of MIMO uncertainty blocks the upper bound is the oo-norm of a special non-negative matrix derived from H-infinity-norms of SISO channels of the system. The upper bound is fit into the inequality relation between the results of mu and l(1) robustness tests. |
BibTeX:
@article{Kovacs1998, author = {Kovács, G. Z. and Hangos, K. M.}, title = {Notes on mu and l(1) robustness tests}, journal = {Kybernetika}, year = {1998}, volume = {34}, number = {5}, pages = {565--578} } |
Kránicz B, Gerzson M and Hangos KM (1998), "Invariant inheritance in structured operating procedures described by Petri nets", Computers & Chemical Engineering. Vol. 22, pp. S969-S972. |
Abstract: Place- and transition-invariants of structured operating procedures described by low level Petri nets containing a plant-level and embedded operating unit-level procedures are analysed in this paper. Place-invariants form a set of system states with, conservation property while transition-invariant correspond to cyclical behaviour of the system. It is shown how the place and transition-invariants of the complete operating procedure can be determined from the invariants of the plant-ant unit-level procedures. The results are illustrated on a simple example. (C) 1998 Elsevier Science Ltd. All rights reserved. |
BibTeX:
@article{Kranicz1998, author = {Kránicz, B. and Gerzson, M. and Hangos, K. M.}, title = {Invariant inheritance in structured operating procedures described by Petri nets}, journal = {Computers & Chemical Engineering}, year = {1998}, volume = {22}, pages = {S969--S972} } |
Lakatos E, Meszéna D and Szederkényi G (2013), "Identifiablity Analysis and Improved Parameter Estimation of a Human Blood Glucose Control System Model", In 11th International Conference on Computational Methods in Systems Biology - CMSB 2013, Klosterneuburg, Austria, 22-24 September, 2013. A. Gupta and T.A. Henzinger (Eds.): CMSB 2013, Lecture Notes in Computer Science, LNBI 8130. , pp. 248-249. Springer.
[BibTeX] |
BibTeX:
@conference{Lakatos2013, author = {E. Lakatos and D. Meszéna and G. Szederkényi}, title = {Identifiablity Analysis and Improved Parameter Estimation of a Human Blood Glucose Control System Model}, booktitle = {11th International Conference on Computational Methods in Systems Biology - CMSB 2013, Klosterneuburg, Austria, 22-24 September, 2013. A. Gupta and T.A. Henzinger (Eds.): CMSB 2013, Lecture Notes in Computer Science, LNBI 8130}, publisher = {Springer}, year = {2013}, pages = {248-249}, note = {ISBN: 978-3-642-40707-9} } |
Lakner R, Cameron IT and Hangos KM (1999), "An assumption-driven case-specific model editor", Computers & Chemical Engineering. Vol. 23, pp. S695-S698. |
Abstract: A case sensitive intelligent model editor has been developed for constructing consistent lumped dynamic process models and for simplifying them using modelling assumptions. The approach is based on a systematic assumption-driven modelling procedure and on the syntax and semantics of process,models and the simplifying assumptions. |
BibTeX:
@article{Lakner1999, author = {Lakner, R. and Cameron, I. T. and Hangos, K. M.}, title = {An assumption-driven case-specific model editor}, journal = {Computers & Chemical Engineering}, year = {1999}, volume = {23}, pages = {S695--S698} } |
Lakner R and Hangos K (2001), "Intelligent assumption retrieval from process models by model-based reasoning", In IEA/AIE 2001. Vol. LNAI 2070, pp. 145-154. Springer-Verlag.
[BibTeX] |
BibTeX:
@incollection{Lakner2001, author = {R. Lakner and K.M. Hangos}, editor = {L. Monostori and J. Váncza and M. Ali}, title = {Intelligent assumption retrieval from process models by model-based reasoning}, booktitle = {IEA/AIE 2001}, publisher = {Springer-Verlag}, year = {2001}, volume = {LNAI 2070}, pages = {145-154} } |
Lakner R and Hangos K (2002), "Computer-aided incremental model building", In Proceedings of the IASTED International Conference; Modelling, Identification and Control. Innsbruck, Austria , pp. 426-431.
[BibTeX] |
BibTeX:
@conference{Lakner2002, author = {R. Lakner and K.M. Hangos}, title = {Computer-aided incremental model building}, booktitle = {Proceedings of the IASTED International Conference; Modelling, Identification and Control}, year = {2002}, pages = {426-431} } |
Lakner R, Hangos K and Cameron I (2001), "Assumption retrieval from process models", In European Symposium on Computer-Aided Process Engineering 11,. , pp. 195-200. Elsevier Science B.V.
[BibTeX] |
BibTeX:
@conference{Lakner2001a, author = {R. Lakner and K.M. Hangos and I.T. Cameron}, editor = {R. Gani and S.B. Jorgensen}, title = {Assumption retrieval from process models}, booktitle = {European Symposium on Computer-Aided Process Engineering 11,}, publisher = {Elsevier Science B.V}, year = {2001}, pages = {195-200} } |
Lakner R, Hangos KM and Cameron IT (2005), "On minimal models of process systems", Chemical Engineering Science. Vol. 60(4), pp. 1127-1142. |
Abstract: Minimal representations are known to have no redundant elements, and are therefore of great importance. Based on the notions of performance and size indices and measures for process systems, the paper proposes conditions for a process model being minimal in a set of functionally equivalent models with respect to a size norm. Generalized versions of known procedures to obtain minimal process models for a given modelling goal, model reduction based on sensitivity analysis and incremental model building are proposed and discussed. The notions and procedures are illustrated and compared on a simple example, that of a simple nonlinear fermentation process with different modelling goals and on a case study of a heat exchanger modelling. (C) 2004 Elsevier Ltd. All rights reserved. |
BibTeX:
@article{Lakner2005, author = {Lakner, R. and Hangos, K. M. and Cameron, I. T.}, title = {On minimal models of process systems}, journal = {Chemical Engineering Science}, year = {2005}, volume = {60}, number = {4}, pages = {1127--1142} } |
Lakner R, Hangos KM and Cameron IT (2003), "Construction of minimal models for control purposes", European Symposium On Computer Aided Process Engineering - 13. Vol. 14, pp. 755-760. |
Abstract: Minimal representations are known to have no redundant elements, therefore are of great importance. Based on the notions of performance and quality indices and measures for process systems, the paper proposes conditions for a process model being minimal in a set of functionally equivalent models with respect to a quality norm. Existing procedures to obtain minimal process models for a given modelling goal are discussed and generalized. The notions and procedures are illustrated and compared on a simple case study, on the example of a simple nonlinear fermentation process model. |
BibTeX:
@article{Lakner2003, author = {Lakner, R. and Hangos, K. M. and Cameron, I. T.}, title = {Construction of minimal models for control purposes}, journal = {European Symposium On Computer Aided Process Engineering - 13}, year = {2003}, volume = {14}, pages = {755--760} } |
Lakner R, Németh E, Hangos K and Cameron I (2006), "Agent-based diagnosis for granulation processes", In 16th European Symposium on Computer Aided Process Engineering and 9th International Symposium on Process Systems Engineering. Garmisch-Partenkirchen, Germany , pp. 1443-1448. Elsevier.
[BibTeX] |
BibTeX:
@incollection{Lakner2006a, author = {R. Lakner and E. Németh and K.M. Hangos and I.T. Cameron}, editor = {W. Marquardt and C. Pantelides}, title = {Agent-based diagnosis for granulation processes}, booktitle = {16th European Symposium on Computer Aided Process Engineering and 9th International Symposium on Process Systems Engineering}, publisher = {Elsevier}, year = {2006}, pages = {1443-1448} } |
Lakner R, Németh E, Hangos KM and Cameron IT (2006), "Multiagent realization of prediction-based diagnosis and loss prevention", Advances In Applied Artificial Intelligence, Proceedings. Vol. 4031, pp. 70-80. |
Abstract: A multiagent diagnostic system implemented in a Protege-JADE-JESS environment interfaced with a dynamic simulator and database services is described in this paper. The proposed system architecture enables the use of a combination of diagnostic methods from heterogeneous knowledge sources. The process ontology and the process agents are designed based on the structure of the process system, while the diagnostic agents implement the applied diagnostic methods. A specific completeness coordinator agent is implemented to coordinate the diagnostic agents based on different methods. The system is demonstrated on a case study for diagnosis of faults in a granulation process based on HAZOP and FMEA analysis. |
BibTeX:
@article{Lakner2006, author = {Lakner, R. and Németh, E. and Hangos, K. M. and Cameron, I. T.}, title = {Multiagent realization of prediction-based diagnosis and loss prevention}, journal = {Advances In Applied Artificial Intelligence, Proceedings}, year = {2006}, volume = {4031}, pages = {70--80} } |
Leitold A, Gerzson M, Pózna AI and Hangos KM (2014), "On-line Qualitative Model-Based Diagnosis of Technological Systems Using Colored Petri Nets", In 28th European Simulation and Modelling Conference, 2014. 10. 22 - 2014. 10. 24, Porto, Portugal. , pp. 332-336. |
BibTeX:
@conference{Leitold2014, author = {A. Leitold and M. Gerzson and A. I. Pózna and K. M. Hangos}, editor = {A. C. Brito and J. M. Tavares and C. B. Olivera}, title = {On-line Qualitative Model-Based Diagnosis of Technological Systems Using Colored Petri Nets}, booktitle = {28th European Simulation and Modelling Conference, 2014. 10. 22 - 2014. 10. 24, Porto, Portugal}, year = {2014}, pages = {332-336} } |
Leitold A and Hangos K (2005), "Numerical Method-Independent Structural Solvability Analysis of Dae Models", Hungarian Journal of Industrial Chemistry Veszprém. Vol. 33(1-2), pp. 11-21.
[BibTeX] |
BibTeX:
@article{Leitold2005, author = {A. Leitold and K.M. Hangos}, title = {Numerical Method-Independent Structural Solvability Analysis of Dae Models}, journal = {Hungarian Journal of Industrial Chemistry Veszprém}, year = {2005}, volume = {33}, number = {1-2}, pages = {11-21} } |
Leitold A and Hangos K (2002), "Effect of steady state assumption on the structural solvability of dynamic process models", Hungarian Journal of Industrial Chemistry. Vol. 30, pp. 61-71.
[BibTeX] |
BibTeX:
@article{Leitold2002a, author = {A. Leitold and K.M. Hangos}, title = {Effect of steady state assumption on the structural solvability of dynamic process models}, journal = {Hungarian Journal of Industrial Chemistry}, year = {2002}, volume = {30}, pages = {61-71} } |
Leitold A and Hangos KM (2001), "Structural solvability analysis of dynamic process models", Computers & Chemical Engineering. Vol. 25(11-12), pp. 1633-1646. |
Abstract: The variable structure of dynamic process models is represented by a directed graph termed as the representation graph for the purpose of solvability analysis in this paper. Structural solvability analysis, the determination of the structural differential index and the structural decomposition of the differential-algebraic equations (DAE) model set can be performed using the representation graph. The characteristic features of the representation graph for both index 1 and high index semi-explicit DAE models are presented. Based on the above a novel index reduction procedure for high index models is proposed. The notions and methods are illustrated on simple process examples. (C) 2001 Elsevier Science B.V. All rights reserved. |
BibTeX:
@article{Leitold2001, author = {Leitold, A. and Hangos, K. M.}, title = {Structural solvability analysis of dynamic process models}, journal = {Computers & Chemical Engineering}, year = {2001}, volume = {25}, number = {11-12}, pages = {1633--1646} } |
Leitold A, Hangos KM and Tuza Z (2002), "Structure simplification of dynamic process models", Journal Of Process Control. Vol. 12(1), pp. 69-83. |
Abstract: Lumped process models derived from first engineering principles are usually too detailed for control purposes where only the major dynamic characteristics of the system should be captured. Two common steps of simplifying dynamic process models, the steady-state variable removal and the variable lumping simplification steps are investigated in this paper, in order to show if they preserve the key properties: the structural controllability, observability and stability of the models. In order to enable the formal analysis, these simplification steps are represented as context sensitive graph transformations acting on the structure graphs of the dynamic process models. It is shown that the simplification transformations above preserve the structural controllability and observability of process models, But only the steady-state variable removal transformation has been found not to destroy their structural stability. The variable lumping structure simplification transformation is further specialized to the case of cascade process models. It is shown that the inverse of this transformation does exist in this case, and both transformations preserve structural controllability and observability. (C) 2001 Elsevier Science Ltd. All rights reserved. |
BibTeX:
@article{Leitold2002, author = {Leitold, A. and Hangos, K. M. and Tuza, Z.}, title = {Structure simplification of dynamic process models}, journal = {Journal Of Process Control}, year = {2002}, volume = {12}, number = {1}, pages = {69--83}, doi = {10.1016/S0959-1524(00)00062-7} } |
Lipták G, Magyar A and Hangos KM (2016), "LQ Control of Lotka-Volterra Systems Based on their Locally Linearized Dynamics", In IFAC-PapersOnLine. Vol. 49(10), pp. 241-245. Elsevier BV. |
BibTeX:
@conference{Liptak2016b, author = {Gy. Lipták and A. Magyar and K. M. Hangos}, title = {LQ Control of Lotka-Volterra Systems Based on their Locally Linearized Dynamics}, booktitle = {IFAC-PapersOnLine}, publisher = {Elsevier BV}, year = {2016}, volume = {49}, number = {10}, pages = {241--245}, doi = {10.1016/j.ifacol.2016.07.536} } |
Lipták G, Rudan J, Hangos KM and Szederkényi G (2016), "Stabilizing Kinetic Feedback Design Using Semidefinite Programming", In 2nd IFAC Workshop on Thermodynamic Foundation of Mathematical Systems Theory - TFMST 2016, 28-30 September, 2016, Vigo, Spain. |
BibTeX:
@conference{Liptak2016a, author = {Gy. Lipták and J. Rudan and K. M. Hangos and G. Szederkényi}, title = {Stabilizing Kinetic Feedback Design Using Semidefinite Programming}, booktitle = {2nd IFAC Workshop on Thermodynamic Foundation of Mathematical Systems Theory - TFMST 2016, 28-30 September, 2016, Vigo, Spain}, year = {2016} } |
Lipták G, Szederkényi G and Hangos KM (2015), "Computing zero deficiency realizations of kinetic systems", Systems and Control Letters. Vol. 81, pp. 24-30. |
BibTeX:
@article{Liptak2015, author = {G. Lipták and G. Szederkényi and K. M. Hangos}, title = {Computing zero deficiency realizations of kinetic systems}, journal = {Systems and Control Letters}, year = {2015}, volume = {81}, pages = {24-30}, doi = {10.1016/j.sysconle.2015.05.001} } |
Lipták G, Szederkényi G and Hangos KM (2015), "Hamiltonian Feedback Design for Mass Action Law Chemical Reaction Networks", In 5th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control, 07. 04. - 07. 07. 2015, Lyon, France. , pp. 1-6. |
BibTeX:
@conference{Liptak2015b, author = {G. Lipták and G. Szederkényi and K. M. Hangos}, title = {Hamiltonian Feedback Design for Mass Action Law Chemical Reaction Networks}, booktitle = {5th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control, 07. 04. - 07. 07. 2015, Lyon, France}, year = {2015}, pages = {1-6} } |
Lipták G, Szederkényi G and Hangos KM (2014), "Kinetic feedback computation for polynomial systems to achieve weak reversibility and minimal deficiency", In 13th European Control Conference, ECC 2014, 06. 24 - 06. 27, 2014, Strasbourg, France. , pp. 2691-2696. |
BibTeX:
@conference{Liptak2014, author = {G. Lipták and G. Szederkényi and K. M. Hangos}, title = {Kinetic feedback computation for polynomial systems to achieve weak reversibility and minimal deficiency}, booktitle = {13th European Control Conference, ECC 2014, 06. 24 - 06. 27, 2014, Strasbourg, France}, year = {2014}, pages = {2691-2696} } |
Lipták G, Szederkényi G and Hangos KM (2014), "On the parametric uncertainty of weakly reversible realizations of kinetic systems", Hungarian Journal of Industry and Chemistry. Vol. 42, pp. 103-107. |
BibTeX:
@article{Liptak2015a, author = {G. Lipták and G. Szederkényi and K. M. Hangos}, title = {On the parametric uncertainty of weakly reversible realizations of kinetic systems}, journal = {Hungarian Journal of Industry and Chemistry}, year = {2014}, volume = {42}, pages = {103-107} } |
Lipták G, Szederkényi G and Hangos M (2016), "Kinetic feedback design for polynomial systems", Journal of Process Control. Vol. 41, pp. 56-66. |
BibTeX:
@article{Liptak2016, author = {Gy. Lipták and G. Szederkényi and M. Hangos}, title = {Kinetic feedback design for polynomial systems}, journal = {Journal of Process Control}, year = {2016}, volume = {41}, pages = {56-66}, doi = {10.1016/j.jprocont.2016.03.002} } |
Lombai F and Szederkényi G (2009), "Throwing motion generation using nonlinear optimization on a 6-degree-of-freedom robot manipulator", In IEEE International Conference on Mechatronics, ICM 2009, 14-17 April. Malaga, Spain , pp. on CD. |
BibTeX:
@conference{Lombai2009, author = {F. Lombai and G. Szederkényi}, title = {Throwing motion generation using nonlinear optimization on a 6-degree-of-freedom robot manipulator}, booktitle = {IEEE International Conference on Mechatronics, ICM 2009, 14-17 April}, year = {2009}, pages = {on CD} } |
Lombai F and Szederkényi G (2008), "Trajectory tracking control of a 6-degree-of-freedom robot arm using nonlinear optimization", In The 10th International Workshop on Advanced Motion Control, Trento, Italy., March, 2008. , pp. 655-660. |
BibTeX:
@conference{Lombai2008, author = {F. Lombai and G. Szederkényi}, title = {Trajectory tracking control of a 6-degree-of-freedom robot arm using nonlinear optimization}, booktitle = {The 10th International Workshop on Advanced Motion Control, Trento, Italy}, year = {2008}, pages = {655-660}, note = {ISBN: 978-1-4244-1703-2}, doi = {10.1109/AMC.2008.4516144} } |
Magyar A (2007), "State estimation and state feedback control in quasi-polynomial and quantum mechanical systems". Thesis at: University of Pannonia. |
BibTeX:
@phdthesis{Magyar2007, author = {A. Magyar}, title = {State estimation and state feedback control in quasi-polynomial and quantum mechanical systems}, school = {University of Pannonia}, year = {2007} } |
Magyar A and Hangos K (2013), "Control Lyapunov function based feedback design for quasi-polynomial systems", In 9th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2013), Sep. 4-6, Toulouse, France. , pp. 128-133. |
BibTeX:
@conference{Magyar2013, author = {Magyar, A. and Hangos, K.M.}, title = {Control Lyapunov function based feedback design for quasi-polynomial systems}, booktitle = {9th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2013), Sep. 4-6, Toulouse, France}, year = {2013}, pages = {128-133}, doi = {10.3182/20130904-3-FR-2041.00108} } |
Magyar A, Hangos K and Szederkényi G (2013), "Stabilizing dynamic feedback design of quasi-polynomial systems using their underlying reduced linear dynamics", In 52nd IEEE Conference on Decision and Control (CDC 2013), Dec. 10-13, Florence, Italy. , pp. 636-641. |
BibTeX:
@conference{Magyar2013a, author = {Magyar, A. and Hangos, K.M. and Szederkényi, G.}, title = {Stabilizing dynamic feedback design of quasi-polynomial systems using their underlying reduced linear dynamics}, booktitle = {52nd IEEE Conference on Decision and Control (CDC 2013), Dec. 10-13, Florence, Italy}, year = {2013}, pages = {636-641}, doi = {10.1109/CDC.2013.6759953} } |
Magyar A, Ingram G, Pongrácz B, Szederkényi G and Hangos K (2003), "On some properties of quasi-polynomial ordinary differential equations and differential-algebraic equations" Budapest
[BibTeX] |
BibTeX:
@techreport{Magyar2003, author = {A. Magyar and G. Ingram and B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {On some properties of quasi-polynomial ordinary differential equations and differential-algebraic equations}, year = {2003} } |
Magyar A, Petz D and Hangos KM (2006), "Bayesian qubit state estimation", In Proceedings of 14th IFAC Symposium on System identification.
[BibTeX] |
BibTeX:
@conference{Magyar2006, author = {A. Magyar and D. Petz and K. M. Hangos}, title = {Bayesian qubit state estimation}, booktitle = {Proceedings of 14th IFAC Symposium on System identification}, year = {2006} } |
Magyar A, Szederkényi G and Hangos K (2008), "Globally stabilizing feedback control of process systems in generalized Lotka-Volterra form", Journal of Process Control. Vol. 18, pp. 80-91. |
Abstract: In the present paper a globally stabilizing feedback controller design method is proposed for process systems when the feedback structure is also assumed to be in a quasi-polynomial form. It is shown that such feedback structure can always be achieved for process systems. By exploiting the special structure of the controller design problem, the existent iterative linear matrix inequality (ILMI) algorithm of [Y.-Y. Cao, J. Lam, Y.-X. Sun, Static output feedback stabilization: an ILMI approach, Automatica 12 (1998) 16411645] is applied to solve the BMI feasibility problem underlying the design. In addition, some partial results on placing the globally stable equilibrium point with respect to the positive orthant have also been proposed that is only possible in a fully actuated situation when the input variables are the intensive variables at the inlet. Furthermore, some preliminary results in selecting the structure of the QP-type feedback have also been presented. |
BibTeX:
@article{Magyar2008, author = {A. Magyar and G. Szederkényi and K.M. Hangos}, title = {Globally stabilizing feedback control of process systems in generalized Lotka-Volterra form}, journal = {Journal of Process Control}, year = {2008}, volume = {18}, pages = {80-91}, doi = {10.1016/j.jprocont.2007.05.003} } |
Magyar A, Szederkényi G and Hangos K (2004), "Quadratic stability of process systems in generalized Lotka-Volterra form", In 6th IFAC Symposium on Nonlinear Control Systems, NOLCOS 2004. Stuttgart, Germany, Sept., 2004. , pp. 357-362.
[BibTeX] |
BibTeX:
@conference{Magyar2004, author = {A. Magyar and G. Szederkényi and K.M. Hangos}, title = {Quadratic stability of process systems in generalized Lotka-Volterra form}, booktitle = {6th IFAC Symposium on Nonlinear Control Systems, NOLCOS 2004}, year = {2004}, pages = {357--362} } |
Magyar A, Szederkényi G and Hangos KM (2007), "Control of mass action law based reaction networks", In Proceedings of the 16th International Conference on Process Control, Strbske Pleso, Slovakia. , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Magyar2007a, author = {A. Magyar and G. Szederkényi and K. M. Hangos}, title = {Control of mass action law based reaction networks}, booktitle = {Proceedings of the 16th International Conference on Process Control, Strbske Pleso, Slovakia}, year = {2007}, pages = {on CD} } |
Magyar A, Szederkényi G and Hangos KM (2005), "Quasi-polynomial System Representation for the Analysis and Control of Nonlinear Systems", In Proceedings of 16th IFAC World Congress. Prague, Czech Republic, June, 2005. , pp. Tu-A22-TO/5 (on CD).
[BibTeX] |
BibTeX:
@conference{Magyar2005a, author = {A. Magyar and G. Szederkényi and K. M. Hangos}, title = {Quasi-polynomial System Representation for the Analysis and Control of Nonlinear Systems}, booktitle = {Proceedings of 16th IFAC World Congress}, year = {2005}, pages = {Tu-A22-TO/5 (on CD)}, note = {on CD} } |
Márczi B, Leitold A, Gerzson M and Hangos K (2012), "Diagnosis of technological systems based on their coloured Petri net model", In 7th Vienna International Conference on Mathematical Modelling, Vienna, Austria, 14-17 Feb. |
BibTeX:
@conference{Marczi2012, author = {B. Márczi and A. Leitold and M. Gerzson and K.M. Hangos}, title = {Diagnosis of technological systems based on their coloured Petri net model}, booktitle = {7th Vienna International Conference on Mathematical Modelling, Vienna, Austria, 14-17 Feb}, year = {2012} } |
Nacsa J, Kovács G and Szederkényi G (2000), "Intelligent alert state detection and switching order generation at the 400/120 kV substation of the Paks Nuclear Power Plant", In 4th IFAC Symposium on Fault Detection and Safety for Technical Processes (SAFEPROCESS 2000). Budapest, Hungary , pp. 1127-1132.
[BibTeX] |
BibTeX:
@conference{Nacsa2000, author = {J. Nacsa and G.L. Kovács and G. Szederkényi}, title = {Intelligent alert state detection and switching order generation at the 400/120 kV substation of the Paks Nuclear Power Plant}, booktitle = {4th IFAC Symposium on Fault Detection and Safety for Technical Processes (SAFEPROCESS 2000)}, year = {2000}, pages = {1127--1132} } |
Nagy JL, Hangos KM and Leisztner L (1987), "Investigation Of The Steady-State Of Measurement Processes", Magyar Kémiai Folyoirat. Vol. 93(4), pp. 158-163.
[BibTeX] |
BibTeX:
@article{NAGY1987, author = {Nagy, J. L. and Hangos, K. M. and Leisztner, L.}, title = {Investigation Of The Steady-State Of Measurement Processes}, journal = {Magyar Kémiai Folyoirat}, year = {1987}, volume = {93}, number = {4}, pages = {158--163} } |
Nagy JL, Leisztner L and Hangos KM (1988), "Investigation Of The Steady-State Measurement Process", Journal Of Automatic Chemistry. Vol. 10(2), pp. 101-105.
[BibTeX] |
BibTeX:
@article{NAGY1988, author = {Nagy, J. L. and Leisztner, L. and Hangos, K. M.}, title = {Investigation Of The Steady-State Measurement Process}, journal = {Journal Of Automatic Chemistry}, year = {1988}, volume = {10}, number = {2}, pages = {101--105} } |
Németh E, Bartha T, Fazekas C and Hangos K (2009), "Verification of a primary-to-secondary leaking safety procedure in a nuclear power plant using coloured Petri nets", Reliability Engineering and System Safety. Vol. 94 (5), pp. 942-953. |
BibTeX:
@article{Nemeth2008, author = {E. Németh and T. Bartha and Cs. Fazekas and K.M. Hangos}, title = {Verification of a primary-to-secondary leaking safety procedure in a nuclear power plant using coloured Petri nets}, journal = {Reliability Engineering and System Safety}, year = {2009}, volume = {94 (5)}, pages = {942-953}, doi = {10.1016/j.ress.2008.10.012} } |
Németh E, Cameron IT and Hangos KM (2005), "Diagnostic goal driven modelling and simulation of multiscale process systems", Computers & Chemical Engineering. Vol. 29(4), pp. 783-796. |
Abstract: A systematic goal-driven top-down modelling methodology is proposed that is capable of developing a multiscale model of a process system for given diagnostic purposes. The diagnostic goal-set and the symptoms are extracted from HAZOP analysis results, where the possible actions to be performed in a fault situation are also described. The multiscale dynamic model is realized in the form of a hierarchical coloured Petri net by using a novel substitution place-transition pair. Multiscale simulation that focuses automatically on the fault areas is used to predict the effect of the proposed preventive actions. The notions and procedures are illustrated on some simple case studies including a heat exchanger network and a more complex wet granulation process. (c) 2004 Elsevier Ltd. All rights reserved. |
BibTeX:
@article{Nemeth2005, author = {Németh, E. and Cameron, I. T. and Hangos, K. M.}, title = {Diagnostic goal driven modelling and simulation of multiscale process systems}, journal = {Computers & Chemical Engineering}, year = {2005}, volume = {29}, number = {4}, pages = {783--796}, doi = {10.1016/j.compchemeng.2004.09.010} } |
Németh E, Fazekas C, Szederkényi G and Hangos K (2007), "Modeling and simulation of the primary circuit of the Paks nuclear power plant for control and diagnosis", In 6th EUROSIM Congress on Modelling and Simulation. Ljubljana, Slovenia, September, 2007. , pp. on CD. |
BibTeX:
@conference{Nemeth2007, author = {E. Németh and Cs. Fazekas and G. Szederkényi and K.M. Hangos}, title = {Modeling and simulation of the primary circuit of the Paks nuclear power plant for control and diagnosis}, booktitle = {6th EUROSIM Congress on Modelling and Simulation}, year = {2007}, pages = {on CD}, note = {ISBN: 978-3-901608-32-2} } |
Németh E and Hangos K (2004), "Multi-scale process model description by generalized coloured CPN models" |
BibTeX:
@techreport{Nemeth2004, author = {E. Németh and K.M. Hangos}, title = {Multi-scale process model description by generalized coloured CPN models}, year = {2004}, url = {http://daedalus.scl.sztaki.hu} } |
Németh E, Hangos KM and Lakner R (2010), "A procedure ontology for advanced diagnosis of process systems", Journal of Intelligent & Fuzzy Systems. Vol. 21, pp. 19-31. |
Abstract: An ontology for representing operating, safety and control procedures is proposed in this paper that descibes the procedure steps and their connections, and enables to represent exceptions during the normal flow of execution in terms of time-out and failed conditions. The procedure ontology is defined within interconnected components of the process plant and the diagnostic analysis based on risk assessment information, and has been implemented as an integrated ontology in a diagnostic framework using the the Protege ontology editor. A novel diagnostic method based on following these procedures and combining observed malfunctions with Failure Mode and Effects Analysis (FMEA) information is also proposed. The proposed ontology and the diagnostic method are illustrated on a simple operating procedure. |
BibTeX:
@article{Nemeth2010, author = {E. Németh and K. M. Hangos and R. Lakner}, title = {A procedure ontology for advanced diagnosis of process systems}, journal = {Journal of Intelligent & Fuzzy Systems}, year = {2010}, volume = {21}, pages = {19--31}, doi = {10.3233/IFS-2010-0432} } |
Németh E, Lakner R, Cameron I and Hangos KM (2009), "Fault diagnosis based on hazard identification results", In Preprints of the 7th IFAC Symposium onFault Detection, Supervision and Safety of Technical Processes, Barcelona, Spain, June 30 - July 3. , pp. 1515-1520. |
BibTeX:
@conference{Nemeth2009, author = {E. Németh and R. Lakner and I.T. Cameron and K. M. Hangos}, title = {Fault diagnosis based on hazard identification results}, booktitle = {Preprints of the 7th IFAC Symposium onFault Detection, Supervision and Safety of Technical Processes, Barcelona, Spain, June 30 - July 3}, year = {2009}, pages = {1515-1520} } |
Németh E, Lakner R and Hangos K (2007), "Diagnosztikai feladatok megvalósítása ágens-alapú technikával", Acta Agraria Kaposváriensis. Vol. 10(ISSN 1418-1789), pp. 211-222. |
BibTeX:
@article{Nemeth2007b, author = {E. Németh and R. Lakner and K.M. Hangos}, title = {Diagnosztikai feladatok megvalósítása ágens-alapú technikával}, journal = {Acta Agraria Kaposváriensis}, year = {2007}, volume = {10}, number = {ISSN 1418-1789}, pages = {211-222} } |
Németh E, Lakner R, Hangos K and Cameron I (2003), "Hierarchical CPN model-based diagnosis using HAZOP knowledge"
[BibTeX] |
BibTeX:
@techreport{Nemeth2003, author = {E. Németh and R. Lakner and K.M. Hangos and I.T. Cameron}, title = {Hierarchical CPN model-based diagnosis using HAZOP knowledge}, year = {2003} } |
Németh E, Lakner R and Hangos KM (2006), "Diagnostic goal-driven reduction of multiscale process models", Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena., In Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena. , pp. 465-487. |
Abstract: Fault detection and diagnosis in large-scale process systems is of great practical importance and present various challenging research problems at the same time. One of them is the computational complexity of the algorithms that causes an exponential growth of the computational resources (time and memory) with increasing system sizes [21]. One remedy of this problem is to decompose the system model and effectively focus on its relevant sub-model when doing the fault detection, isolation and loss prevention. Multi-scale modelling is an emerging interdisciplinary field that offers a systematic way of constructing, analyzing and solving dynamic models of large-scale complex systems [22]. The aim of this paper is to propose a model reduction approach based on multi-scale modelling of process systems for diagnostic purposes. Because lumped or concentrated parameter process models are the most important and widespread class of process models for control and diagnostic applications, therefore we also restrict ourselves to this case. |
BibTeX:
@conference{Nemeth2006, author = {Németh, E. and Lakner, R. and Hangos, K. M.}, title = {Diagnostic goal-driven reduction of multiscale process models}, booktitle = {Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena}, journal = {Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena}, year = {2006}, pages = {465--487} } |
Németh E, Lakner R, Hangos KM and Cameron IT (2007), "Prediction-based diagnosis and loss prevention using qualitative multi-scale models", Information Sciences. Vol. 177(8), pp. 1916-1930. |
Abstract: A prototype prediction based intelligent diagnostic system that is capable of integrating qualitative and quantitative process models and operational experience in the form of HAZOP result tables is proposed in this paper. The diagnostic system utilizes Gensym's real time G2 expert system software. Its diagnostic "cause-effect" rules and possible actions (suggestions) are extracted from the results of standard HAZOP analysis. The knowledge base of the system is organized in a hierarchical way following the hierarchy levels of a multi-scale model of the process system. This supports focusing used by fault detection and loss prevention and thus decomposes the otherwise computationally hard problem. Prediction by simplified dynamic models are used to reduce ambiguity in case of multiple possible causes and/or multiple possible mitigating actions. The system is illustrated on the example of a commercial fertilizer granulator circuit using a simulation test bed. (C) 2006 Elsevier Inc. All rights reserved. |
BibTeX:
@article{Nemeth2007a, author = {Németh, E. and Lakner, R. and Hangos, K. M. and Cameron, I. T.}, title = {Prediction-based diagnosis and loss prevention using qualitative multi-scale models}, journal = {Information Sciences}, year = {2007}, volume = {177}, number = {8}, pages = {1916--1930}, doi = {10.1016/j.ins.2006.10.009} } |
Németh E, Lakner R, Hangos KM and Cameron IT (2005), "Prediction-based diagnosis and loss prevention using qualitative multi-scale models", European Symposium on Computer-Aided Process Engineering-15, 20A and 20B. Vol. 20a-20b, pp. 535-540. |
Abstract: A prototype prediction based intelligent diagnostic system that is capable of integrating qualitative and quantitative process models and operation experience in the form of HAZOP result tables is proposed in this paper. The knowledge base of the system is organized in a hierarchical way following the hierarchy levels of the multi-scale model of the process system. This supports the focusing of the fault detection and loss prevention and thus decomposes the otherwise computationally hard problem. The system is illustrated on the example of a commercial fertilizer granulator drum. |
BibTeX:
@article{Nemeth2005b, author = {Németh, E. and Lakner, R. and Hangos, K. M. and Cameron, I. T.}, title = {Prediction-based diagnosis and loss prevention using qualitative multi-scale models}, journal = {European Symposium on Computer-Aided Process Engineering-15, 20A and 20B}, year = {2005}, volume = {20a-20b}, pages = {535--540} } |
Németh E, Lakner R, Hangos KM and Cameron IT (2005), "Prediction-based diagnosis and loss prevention using model-based reasoning", IEA/AIE 2005, Lecture Notes in Artificial Intelligence. Vol. 3533, pp. 367-369. |
Abstract: A diagnostic expert system established on model-based reasoning for on-line diagnosis and loss prevention is described in the paper. Its diagnostic "cause-effect" rules and possible actions (suggestions) are extracted from the results of standard HAZOP analysis. Automatic focusing as well as "what-if" type reasoning for testing hypothetical actions have been also implemented. The diagnostic system is tested on a granulator drum of a fertilizer plant in a simulation test-bed. |
BibTeX:
@article{Nemeth2005c, author = {Németh, E. and Lakner, R. and Hangos, K. M. and Cameron, I. T.}, title = {Prediction-based diagnosis and loss prevention using model-based reasoning}, journal = {IEA/AIE 2005, Lecture Notes in Artificial Intelligence}, year = {2005}, volume = {3533}, pages = {367--369} } |
Németh E, Seligmann BJ, Hockings K, Oakley J, O'Brien C, Hangos KM and Cameron IT (2011), "Generating cause-implication graphs for process systems via blended hazard identification methods", In 21st European Symposium on Computer-Aided Process Engineering - ESCAPE 21, Chalkidiki, Greece, May 29 - June 1. , pp. 1-5 (on CD). |
BibTeX:
@conference{Nemeth2011, author = {E. Németh and B. J. Seligmann and K. Hockings and J. Oakley and C. O'Brien and K. M. Hangos and I. T. Cameron}, title = {Generating cause-implication graphs for process systems via blended hazard identification methods}, booktitle = {21st European Symposium on Computer-Aided Process Engineering - ESCAPE 21, Chalkidiki, Greece, May 29 - June 1}, year = {2011}, pages = {1-5 (on CD)} } |
Németh H, Ailer P and Hangos K (2002), "Nonlinear modelling and model verification of a single protection valve", Periodica Polytechnica, Series of Transportation Engineering. Vol. 30(1-2), pp. 69-92.
[BibTeX] |
BibTeX:
@article{Nemeth2002, author = {H. Németh and P. Ailer and K.M. Hangos}, title = {Nonlinear modelling and model verification of a single protection valve}, journal = {Periodica Polytechnica, Series of Transportation Engineering}, year = {2002}, volume = {30}, number = {1-2}, pages = {69-92} } |
Németh H and Hangos K (2003), "Elektro-pneumatikus védőszelep rendszer identifikációja", GÉP. Vol. LIV(3-4), pp. 33-42.
[BibTeX] |
BibTeX:
@article{Nemeth2003a, author = {H. Németh and K.M. Hangos}, title = {Elektro-pneumatikus védőszelep rendszer identifikációja}, journal = {GÉP}, year = {2003}, volume = {LIV}, number = {3-4}, pages = {33-42} } |
Németh H and Hangos KM (2003), "Nonlinear control of an electro-pneumatic protection valve for circuit pressure limiting, SCL-2/2003"
[BibTeX] |
BibTeX:
@techreport{Nemeth2003b, author = {H. Németh and K. M. Hangos}, title = {Nonlinear control of an electro-pneumatic protection valve for circuit pressure limiting, SCL-2/2003}, year = {2003} } |
Németh H, Palkovics L and Hangos K (2004), "Feedforward bang-bang control design for electro-pneumatic protection valves", Periodica Polytechnica, Series of Transportation Engineering. Vol. 32, pp. 1-18.
[BibTeX] |
BibTeX:
@article{Nemeth2004a, author = {H. Németh and L. Palkovics and K.M. Hangos}, title = {Feedforward bang-bang control design for electro-pneumatic protection valves}, journal = {Periodica Polytechnica, Series of Transportation Engineering}, year = {2004}, volume = {32}, pages = {1-18} } |
Németh H, Palkovics L and Hangos KM (2005), "Unified model simplification procedure applied to a single protection valve", Control Engineering Practice. Vol. 13(3), pp. 315-326. |
Abstract: A systematic approach is proposed in this paper for model simplification in order to reduce the number of state variables and parameters. The approach is applied for simplifying a lumped hybrid index-1 model of a single protection valve with electronic actuation that was originally developed from first engineering principles. The resulted simplified model preserves the engineering meaning of its state variables, while the number of state variables and parameters is decreased significantly. (C) 2004 Elsevier Ltd. All rights reserved. |
BibTeX:
@article{Nemeth2005a, author = {Németh, H. and Palkovics, L. and Hangos, K. M.}, title = {Unified model simplification procedure applied to a single protection valve}, journal = {Control Engineering Practice}, year = {2005}, volume = {13}, number = {3}, pages = {315--326} } |
Németh T, Varga EI, Hangos KM and Jorgensen SB (1992), "A Tool For Development Of Qualitative And Approximate Quantitative Process Models", Computers & Chemical Engineering. Vol. 16, pp. S491-S498. |
Abstract: A methodology and a tool to support the early stages of model development is presented. The model development basis is conservation of extensive thermodynamical properties, called quantities. The conceptual basis for the graphical editor layout is description of dynamic interactions between process quantities and interactions from the environment in a so called Dynamic Quantity Interaction Diagram (DYQUID). The DYQUID model representation forms a superset of a large number of dynamic process model representations, such as locally linear model structures, qualitative differential equations and conventional nonlinear state space models. The prototype version of the editor is object oriented, and is written in C++. The editor works with objects which fit engineering notions. Each object has its graphical representation. The editor is equipped with generic function types for transfer and reaction mechanisms. The editor may be expanded with additional function types suitable for a pertinent application area. The editor is interactive, driven by menus and questionnaires. One purpose of this experimental version of a DYQUID editor is to obtain experience with the efficiency of the user interface for facilitating development of different types of mutually consistent model representations. |
BibTeX:
@article{NEMETH1992, author = {Németh, T. and Varga, E. I. and Hangos, K. M. and Jorgensen, S. B.}, title = {A Tool For Development Of Qualitative And Approximate Quantitative Process Models}, journal = {Computers & Chemical Engineering}, year = {1992}, volume = {16}, pages = {S491--S498} } |
Otero-Muras I, Szederkényi G, Alonso AA and Hangos KM (2012), "Inducing sustained oscillations in mass action kinetic networks of a certain class", In Preprints of the 8th IFAC Symposium on Advanced Control of Chemical Processes, Singapore, July 10-12. Singapore, July 10-13, 2012. , pp. 475-480. The International Federation of Automatic Control (IFAC)The International Federation of Automatic Control. |
BibTeX:
@conference{Otero-Muras2012, author = {I. Otero-Muras and G. Szederkényi and A. A. Alonso and K. M. Hangos}, title = {Inducing sustained oscillations in mass action kinetic networks of a certain class}, booktitle = {Preprints of the 8th IFAC Symposium on Advanced Control of Chemical Processes, Singapore, July 10-12}, publisher = {The International Federation of Automatic Control (IFAC)The International Federation of Automatic Control}, year = {2012}, pages = {475-480} } |
Otero-Muras I, Szederkényi G, Alonso A and Hangos K (2008), "Local dissipative Hamiltonian description of reversible reaction networks", Systems and Control Letters. Vol. 57, pp. 554-560. |
Abstract: In this letter we show that closed reversible chemical reaction networks with independent elementary reactions admit a global pseudo-Hamiltonian structure which is at least locally dissipative around any equilibrium point. The structure matrix of the Hamiltonian description reflects the graph topology of the reaction network and it is a smooth function of the concentrations of the chemical species in the positive orthant. The physical interpretation of the description is briefly explained and two illustrative examples are presented for global and local dissipative Hamiltonian description, respectively. |
BibTeX:
@article{Otero-Muras2008a, author = {I. Otero-Muras and G. Szederkényi and A.A. Alonso and K.M. Hangos}, title = {Local dissipative Hamiltonian description of reversible reaction networks}, journal = {Systems and Control Letters}, year = {2008}, volume = {57}, pages = {554-560}, doi = {10.1016/j.sysconle.2007.12.003} } |
Otero-Muras I, Szederkényi G, Alonso A and Hangos K (2006), "Dynamic analysis and control of chemical and biochemical reaction networks", In International Symposium on Advanced Control of Chemical Processes - ADCHEM 2006. Gramado, Brazil, April, 2006. , pp. 165-170.
[BibTeX] |
BibTeX:
@conference{Otero-Muras2006a, author = {I. Otero-Muras and G. Szederkényi and A.A. Alonso and K.M. Hangos}, title = {Dynamic analysis and control of chemical and biochemical reaction networks}, booktitle = {International Symposium on Advanced Control of Chemical Processes - ADCHEM 2006}, year = {2006}, pages = {165--170} } |
Otero-Muras I, Szederkényi G, Hangos K and Alonso A (2008), "Dynamic analysis and control of biochemical reaction networks", Mathematics and Computers in Simulation. Vol. 79(4), pp. 999-1009. |
Abstract: In the present work, we combine the concepts and tools from Irreversible Thermodynamics and Control Theory in a contribution to unravel the origin of complex nonlinear behaviour in biochemical networks. Regarding cells as thermodynamic systems, we can consider dynamic evolution of intracellular processes in terms of the combined action of an endogenous entropy production and the entropy flux associated to chemicals passing through the control volume. Based on a generalized description of biochemical systems, a physically motivated storage function is constructed and used for stability analysis. In this way, the entropy flux of open systems can be meaningfully modified by efficient nonlinear control schemes capable of network stabilization, and irreversible thermodynamics provide us with the physical insight to further interpret the controlled response. |
BibTeX:
@article{Otero-Muras2008, author = {I. Otero-Muras and G. Szederkényi and K.M. Hangos and A.A. Alonso}, title = {Dynamic analysis and control of biochemical reaction networks}, journal = {Mathematics and Computers in Simulation}, year = {2008}, volume = {79}, number = {4}, pages = {999-1009}, doi = {10.1016/j.matcom.2008.02.019} } |
Otero-Muras I, Szederkényi G, Hangos K and Alonso A (2006), "Dynamic analysis and control of biochemical reaction networks", In 5th Vienna International Conference on Mathematical Modelling - MATHMOD 2006. Vienna, Austria, February, 2006. , pp. 4.1-4.10.
[BibTeX] |
BibTeX:
@conference{Otero-Muras2006, author = {I. Otero-Muras and G. Szederkényi and K.M. Hangos and A.A. Alonso}, title = {Dynamic analysis and control of biochemical reaction networks}, booktitle = {5th Vienna International Conference on Mathematical Modelling - MATHMOD 2006}, year = {2006}, pages = {4.1--4.10} } |
Otero-Muras I, Szederkényi G, Hangos K and Alonso A (2005), "Stabilization of chemical and biochemical networks", In 6th International PhD Workshop on Systems and Control. Izola, Slovenia , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Otero-Muras2005, author = {I. Otero-Muras and G. Szederkényi and K.M. Hangos and A.A. Alonso}, title = {Stabilization of chemical and biochemical networks}, booktitle = {6th International PhD Workshop on Systems and Control}, year = {2005}, pages = {on CD} } |
Palkovics L, Németh H and Hangos K (2006), "Nonlinear control design for a mechatronic protection valve", In Proceedings of the Workshop on System Identification and Control Systems. (ISBN 963-421-586-6), pp. 63-80. Advanced Vehicles and Vehicle Control Knowledge Center of BME.
[BibTeX] |
BibTeX:
@incollection{Palkovics2006, author = {L. Palkovics and H. Németh and K.M. Hangos}, editor = {J. Bokor and K.M. Hangos}, title = {Nonlinear control design for a mechatronic protection valve}, booktitle = {Proceedings of the Workshop on System Identification and Control Systems}, publisher = {Advanced Vehicles and Vehicle Control Knowledge Center of BME}, year = {2006}, number = {ISBN 963-421-586-6}, pages = {63-80} } |
Péni T and Szederkényi G (2009), "Model predictive control for the hybrid primary circuit dynamics of a pressurized water nuclear power plant", Periodica Polytechnica Electrical Engineering. Vol. 53, pp. 37-44. |
BibTeX:
@article{Peni2009, author = {T. Péni and G. Szederkényi}, title = {Model predictive control for the hybrid primary circuit dynamics of a pressurized water nuclear power plant}, journal = {Periodica Polytechnica Electrical Engineering}, year = {2009}, volume = {53}, pages = {37-44}, url = {http://www.pp.bme.hu/ee/2009_1/ee2009_1_05.html}, doi = {10.3311/pp.ee.2009-1-2.05} } |
Péni T, Szederkényi G and Bokor J (2007), "Model predictive control of the hybrid primary circuit dynamics in a pressurized water nuclear power plant", In Proc. of the European Control Conference (ECC 2007). Kos, Greece, July, 2007. , pp. 5361-5367.
[BibTeX] |
BibTeX:
@conference{Peni2007a, author = {T. Péni and G. Szederkényi and J. Bokor}, title = {Model predictive control of the hybrid primary circuit dynamics in a pressurized water nuclear power plant}, booktitle = {Proc. of the European Control Conference (ECC 2007)}, year = {2007}, pages = {5361--5367}, note = {ISBN: 978-960-89028-5-5} } |
Péni T, Szederkényi G and Bokor J (2006), "Model predictive control of the hybrid primary circuit dynamics in a pressurized water nuclear power plant" Budapest, Hungary (SCL-06-2006)
[BibTeX] |
BibTeX:
@techreport{Peni2006a, author = {T. Péni and G. Szederkényi and J. Bokor}, title = {Model predictive control of the hybrid primary circuit dynamics in a pressurized water nuclear power plant}, year = {2006}, number = {SCL-06-2006} } |
Péni T, Szederkényi G, Bokor J and Hangos K (2004), "Dynamic inversion based velocity tracking control of road vehicles", In 6th IFAC Symposium on Nonlinear Control Systems, NOLCOS 2004. Stuttgart, Germany, Sept., 2004. , pp. 1199-1204.
[BibTeX] |
BibTeX:
@conference{Peni2004, author = {T. Péni and G. Szederkényi and J. Bokor and K.M. Hangos}, title = {Dynamic inversion based velocity tracking control of road vehicles}, booktitle = {6th IFAC Symposium on Nonlinear Control Systems, NOLCOS 2004}, year = {2004}, pages = {1199--1204} } |
Péni T, Szederkényi G and Hangos K (2003), "Nonlinear dynamic output feedback control of fermentation processes", In Process Control '03. Strbske Pleso, Slovakia , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Peni2003, author = {T. Péni and G. Szederkényi and K.M. Hangos}, title = {Nonlinear dynamic output feedback control of fermentation processes}, booktitle = {Process Control '03}, year = {2003}, pages = {on CD}, note = {ISBN: 80-227-1902-1} } |
Péni T, Varga I, Szederkényi G and Bokor J (2006), "Robust model predictive control of a nuclear power plant pressurizer subsystem", In 25th IASTED International Conference, Modeling, Identification, and Control - MIC 2006. Lanzarote, Spain, February, 2006. , pp. 167-172.
[BibTeX] |
BibTeX:
@conference{Peni2006, author = {T. Péni and I. Varga and G. Szederkényi and J. Bokor}, title = {Robust model predictive control of a nuclear power plant pressurizer subsystem}, booktitle = {25th IASTED International Conference, Modeling, Identification, and Control - MIC 2006}, year = {2006}, pages = {167--172} } |
Péni T, Varga I, Szederkényi G and Bokor J (2005), "Robust model predictive control with state estimation for an industrial pressurizer system", Hungarian Journal of Industrial Chemistry. Vol. 33, pp. 89-96. |
Abstract: Robust model predictive control of an industrial pressurizer is presented in this paper. The physical model of the system is based on first engineering principles and the model parameters have been previously identified from measured data. To satisfy the hard constraints on the state variables and the input even in the presence of disturbances, the so-called single policy robust model predictive control method is applied. The maximal admissible level set, the disturbance invariant set and the terminal sets are determined for the system. Simulation results show that the proposed controller satisfies all the requirements and shows good time-domain behavior. |
BibTeX:
@article{Peni2005, author = {T. Péni and I. Varga and G. Szederkényi and J. Bokor}, title = {Robust model predictive control with state estimation for an industrial pressurizer system}, journal = {Hungarian Journal of Industrial Chemistry}, year = {2005}, volume = {33}, pages = {89--96} } |
Petz D, Hangos K and Ruppert L (2008), "Quantum Bio-Informatics" Vol. ISBN-13 978-981-279-316-4, pp. 247-257. World Scientific. |
BibTeX:
@inbook{Petz2008, author = {D. Petz and K.M. Hangos and L. Ruppert}, editor = {L. Accardi and W. Freudenberg and M. Ohya}, title = {Quantum Bio-Informatics}, publisher = {World Scientific}, year = {2008}, volume = {ISBN-13 978-981-279-316-4}, pages = {247-257} } |
Petz D, Hangos KM and Magyar A (2007), "Point estimation of states of finite quantum systems", Journal Of Physics A-Mathematical And Theoretical. Vol. 40(28), pp. 7955-7969. |
Abstract: The estimation of the density matrix of a k-level quantum system is studied when the parametrization is given by the real and imaginary part of the entries, and they are estimated by independent measurements. It is established that the properties of the estimation procedure depend very much on the invertibility of the true state. In particular, in the case of a pure state, the estimation should be constrained to ensure the positive definiteness of the estimate. An efficient constraining algorithm is proposed and it yields an asymptotically unbiased estimate. Moreover, several estimation schemes are compared for the unknown state of a qubit when one copy is measured at a time. It is shown that the average mean quadratic error matrix is the smallest if the applied observables are complementary. All the results are illustrated by computer simulations. |
BibTeX:
@article{Petz2007, author = {Petz, D. and Hangos, K. M. and Magyar, A.}, title = {Point estimation of states of finite quantum systems}, journal = {Journal Of Physics A-Mathematical And Theoretical}, year = {2007}, volume = {40}, number = {28}, pages = {7955--7969} } |
Petz D, Hangos KM, Szántó A and Szőllősi F (2006), "State tomography for two qubits using reduced densities", Journal Of Physics A-Mathematical And General. Vol. 39(34), pp. 10901-10907. |
Abstract: The optimal state determination ( or tomography) is studied for a composite system of two qubits when measurements can be performed on one of the qubits and interactions of the two qubits can be implemented. The goal is to minimize the number of interactions to be implemented. The algebraic method used in the paper leads to an extension of the concept of mutually unbiased measurements. |
BibTeX:
@article{Petz2006, author = {Petz, D. and Hangos, K. M. and Szántó, A. and Szőllősi, F.}, title = {State tomography for two qubits using reduced densities}, journal = {Journal Of Physics A-Mathematical And General}, year = {2006}, volume = {39}, number = {34}, pages = {10901--10907} } |
Polcz P, Szederkényi G and Hangos KM (2016), "Computational stability analysis of an uncertain bioreactor model", In 13th International Symposium on Stability, Vibration, and Control of Machines and Structures - SVCS 2016, June 16-18, Budapest, Hungary. , pp. 1-12. |
BibTeX:
@conference{Polcz2016, author = {P. Polcz and G. Szederkényi and K. M. Hangos}, title = {Computational stability analysis of an uncertain bioreactor model}, booktitle = {13th International Symposium on Stability, Vibration, and Control of Machines and Structures - SVCS 2016, June 16-18, Budapest, Hungary}, year = {2016}, pages = {1-12} } |
Polcz P, Szederkényi G and Péni T (2015), "An improved method for estimating the domain of attraction of nonlinear systems containing rational functions", Journal of Physics - Conference Series. Vol. 659, pp. 012038 (1-12). |
BibTeX:
@article{Polcz2015, author = {P. Polcz and G. Szederkényi and T. Péni}, title = {An improved method for estimating the domain of attraction of nonlinear systems containing rational functions}, journal = {Journal of Physics - Conference Series}, year = {2015}, volume = {659}, pages = {012038 (1-12)}, doi = {10.1088/1742-6596/659/1/012038} } |
Pongrácz B, Szederkényi G and Hangos KM (2003), "The Effect of Algebraic Equations on the Stability of Process Systems Modelled by Differential Algebraic Equations", In Proceedings of the 13th European Symposium on Computer Aided Process Engineering - ESCAPE-13. Lappenrantaa, Finland , pp. 857-862.
[BibTeX] |
BibTeX:
@conference{Pongr'acz2003, author = {B. Pongrácz and G. Szederkényi and K. M. Hangos}, title = {The Effect of Algebraic Equations on the Stability of Process Systems Modelled by Differential Algebraic Equations}, booktitle = {Proceedings of the 13th European Symposium on Computer Aided Process Engineering - ESCAPE-13}, year = {2003}, pages = {857--862} } |
Pongrácz B (2008), "Analysis and Control of Quasi-Polynomial DAE Systems". Thesis at: University of Pannonia. |
BibTeX:
@phdthesis{Pongracz2008a, author = {B. Pongrácz}, title = {Analysis and Control of Quasi-Polynomial DAE Systems}, school = {University of Pannonia}, year = {2008} } |
Pongrácz B, Ailer P, Hangos K and Szederkényi G (2008), "Nonlinear reference tracking control of a gas turbine with load torque estimation", International Journal of Adaptive Control and Signal Processing. Vol. 22, pp. 757-773. |
Abstract: Input-output linearization-based adaptive reference tracking control of a low-power gas turbine model is presented in this paper. The gas turbine is described by a third-order nonlinear input-affine state-space model, where the manipulable input is the fuel mass flowrate and the controlled output is the rotational speed. The stability of the one-dimensional zero dynamics of the controlled plant is investigated via phase diagrams. The input-output linearizing feedback is extended with a load torque estimator algorithm resulting in an adaptive feedback scheme. The tuning of controller parameters is performed considering three main design goals: appropriate settling time, robustness against environmental disturbances and model parameter uncertainties, and avoiding the saturation of the actuator. Simulations show that the closed-loop system is robust with respect to the variations in uncertain model and environ-mental parameters and its performance satisfies the defined requirements. |
BibTeX:
@article{Pongracz2008, author = {B. Pongrácz and P. Ailer and K.M. Hangos and G. Szederkényi}, title = {Nonlinear reference tracking control of a gas turbine with load torque estimation}, journal = {International Journal of Adaptive Control and Signal Processing}, year = {2008}, volume = {22}, pages = {757-773}, note = {impact factor: 0.58 (2006)}, doi = {10.1002/acs.1020} } |
Pongrácz B, Ailer P, Szederkényi G and Hangos K (2005), "Nonlinear zero dynamics and control of a low power gas turbine" Budapest, Hungary (SCL-03-2005)
[BibTeX] |
BibTeX:
@techreport{Pongracz2005a, author = {B. Pongrácz and P. Ailer and G. Szederkényi and K.M. Hangos}, title = {Nonlinear zero dynamics and control of a low power gas turbine}, year = {2005}, number = {SCL-03-2005} } |
Pongrácz B, Ailer P, Szederkényi G and Hangos K (2004), "Stability of zero dynamics of a low power gas turbine", In 12th Mediterranean Control Conference on Control and Automation -- MED'04. Kusadasi, Turkey , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Pongracz2004, author = {B. Pongrácz and P. Ailer and G. Szederkényi and K.M. Hangos}, title = {Stability of zero dynamics of a low power gas turbine}, booktitle = {12th Mediterranean Control Conference on Control and Automation -- MED'04}, year = {2004}, pages = {on CD} } |
Pongrácz B, Ailer P, Szederkényi G and Hangos K (2004), "Nonlinear Zero Dynamics Analysis and Control of a Low Power Gas Turbine", In 5th International PhD Workshop on Systems and Control. Balatonfüred, Hungary , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Pongracz2004a, author = {B. Pongrácz and P. Ailer and G. Szederkényi and K.M. Hangos}, title = {Nonlinear Zero Dynamics Analysis and Control of a Low Power Gas Turbine}, booktitle = {5th International PhD Workshop on Systems and Control}, year = {2004}, pages = {on CD} } |
Pongrácz B, Szederkényi G and Hangos K (2006), "An algorithm for determining a class of invariants in quasi-polynomial systems", Computer Physics Communications. Vol. 175, pp. 204-211. |
Abstract: In this paper an algorithm is proposed for the retrieval of a wide class of invariants in quasi-polynomial systems. The invariance properties of the algorithm under different transformations are discussed. The application of the algorithm is illustrated on physical and numerical examples. The algorithm has been implemented in the MATLAB computing environment. |
BibTeX:
@article{Pongracz2006, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {An algorithm for determining a class of invariants in quasi-polynomial systems}, journal = {Computer Physics Communications}, year = {2006}, volume = {175}, pages = {204--211}, doi = {10.1016/j.cpc.2006.03.003} } |
Pongrácz B, Szederkényi G and Hangos K (2005), "An algorithm for determining a class of invariants in quasi-polynomial systems" Budapest, Hungary (SCL-02-2005)
[BibTeX] |
BibTeX:
@techreport{Pongracz2005, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {An algorithm for determining a class of invariants in quasi-polynomial systems}, year = {2005}, number = {SCL-02-2005} } |
Pongrácz B, Szederkényi G and Hangos K (2005), "An algorithm to find first integrals in quasi-polynomial ODEs", In 6th International PhD Workshop on Systems and Control. Izola, Slovenia , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Pongracz2005b, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {An algorithm to find first integrals in quasi-polynomial ODEs}, booktitle = {6th International PhD Workshop on Systems and Control}, year = {2005}, pages = {on CD} } |
Pongrácz B, Szederkényi G and Hangos K (2003), "Stability Analysis Techniques for Process Models in DAE Form - the Effect of Algebraic Equations", In 4th International PhD Workshop: Information Technologies & Control. , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Pongracz2003, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {Stability Analysis Techniques for Process Models in DAE Form - the Effect of Algebraic Equations}, booktitle = {4th International PhD Workshop: Information Technologies & Control}, year = {2003}, pages = {on CD} } |
Pongrácz B, Szederkényi G and Hangos K (2003), "The effect of algebraic equations on the stability of process systems modelled by differential algebraic equations", Computer Aided Chemical Engineering. Vol. 14, pp. 857-862. |
Abstract: The effect of the algebraic constitutive equations on local stability of lumped process models is investigated in this paper using local linearization and eigenvalue checking. Case studies are used to systematically show the influence of algebraic equations on the open loop local stability of process systems using illustrative examples of a continuous fermentation process model and a countercurrent heat exchanger. |
BibTeX:
@article{Pongracz2003a, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {The effect of algebraic equations on the stability of process systems modelled by differential algebraic equations}, journal = {Computer Aided Chemical Engineering}, year = {2003}, volume = {14}, pages = {857-862}, doi = {10.1016/S1570-7946(03)80224-9} } |
Pongrácz B, Szederkényi G and Hangos K (2002), "The effect of algebraic equations on the stability of process systems", In 3rd International PhD Workshop: Advances in Supervision and Control Systems. Strunjan, Slovenia , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Pongracz2002a, author = {B. Pongrácz and G. Szederkényi and K.M. Hangos}, title = {The effect of algebraic equations on the stability of process systems}, booktitle = {3rd International PhD Workshop: Advances in Supervision and Control Systems}, year = {2002}, pages = {on CD} } |
Pongrácz B, Szederkényii G and Hangos KM (2002), "The Effect of Algebraic Equations on the Stability of Process Systems Modelled by Differential Algebraic Equations" (SCL-03-2002)
[BibTeX] |
BibTeX:
@techreport{Pongracz2002, author = {B. Pongrácz and G. Szederkényii and K. M. Hangos}, title = {The Effect of Algebraic Equations on the Stability of Process Systems Modelled by Differential Algebraic Equations}, year = {2002}, number = {SCL-03-2002} } |
Pózna A, Gerzson M, Leitold A and Hangos KM (2016), "Colored Petri net based diagnosis of process systems", In 30th European Simulation and Modeling Conference, 26-28 October 2016, Las Palmas, Spain. , pp. 491. |
BibTeX:
@conference{Pozna2016, author = {A. Pózna and M. Gerzson and A. Leitold and K. M. Hangos}, title = {Colored Petri net based diagnosis of process systems}, booktitle = {30th European Simulation and Modeling Conference, 26-28 October 2016, Las Palmas, Spain}, year = {2016}, pages = {491} } |
Rozgonyi S and Hangos K (2005), "Hybrid modelling and control of an industrial vaporizer", In 15th International Conference on Process Control 05. Strbské Pleso, High Tatras, Slovakia Vol. on CD
[BibTeX] |
BibTeX:
@conference{Rozgonyi2005, author = {Sz. Rozgonyi and K.M. Hangos}, title = {Hybrid modelling and control of an industrial vaporizer}, booktitle = {15th International Conference on Process Control 05}, year = {2005}, volume = {on CD} } |
Rozgonyi S, Hangos K and Szederkényi G (2006), "Improved estimation method of region of stability for nonlinear autonomous systems" Budapest, Hungary (SCL-02-2006) |
BibTeX:
@techreport{Rozgonyi2006, author = {Sz. Rozgonyi and K.M. Hangos and G. Szederkényi}, title = {Improved estimation method of region of stability for nonlinear autonomous systems}, year = {2006}, number = {SCL-02-2006} } |
Rozgonyi S and Hangos KM (2011), "Domain of attraction analysis of a controlled hybrid reactor model", Annals of Nuclear Energy. Vol. 38, pp. 969-975. |
BibTeX:
@article{Rozgonyi2011a, author = {Sz. Rozgonyi and K. M. Hangos}, title = {Domain of attraction analysis of a controlled hybrid reactor model}, journal = {Annals of Nuclear Energy}, year = {2011}, volume = {38}, pages = {969-975}, doi = {10.1016/j.anucene.2011.01.023} } |
Rozgonyi S, Hangos KM and Szederkényi G (2010), "Determining the domain of attraction of hybrid non-linear systems using maximal Lyapunov functions", Kybernetika. Vol. 46, pp. 19-37. |
BibTeX:
@article{Rozgonyi2010, author = {Sz. Rozgonyi and K. M. Hangos and G. Szederkényi}, title = {Determining the domain of attraction of hybrid non-linear systems using maximal Lyapunov functions}, journal = {Kybernetika}, year = {2010}, volume = {46}, pages = {19-37} } |
Rudan J, van den Boom T and Hangos KM (2012), "Distributed solution of large MILP problems applies to the analysis and control of complex dynamical systems", In 12th International Workshop on Systems and Control, 27 August, Veszprém, Hungary. , pp. 12-15. |
BibTeX:
@conference{Rudan2012a, author = {J. Rudan and T. van den Boom and K. M. Hangos}, title = {Distributed solution of large MILP problems applies to the analysis and control of complex dynamical systems}, booktitle = {12th International Workshop on Systems and Control, 27 August, Veszprém, Hungary}, year = {2012}, pages = {12-15} } |
Rudan J, Hangos KM and Szederkényi G (2011), "Analysis and supervisory control of a pressurizer using coloured Petri nets", In 9th European Workshop on Advanced Control and Diagnosis - ACD 2011. , pp. 1-6. |
BibTeX:
@conference{Rudan2011, author = {J. Rudan and K. M. Hangos and G. Szederkényi}, title = {Analysis and supervisory control of a pressurizer using coloured Petri nets}, booktitle = {9th European Workshop on Advanced Control and Diagnosis - ACD 2011}, year = {2011}, pages = {1-6}, url = {http://www.conferences.hu/acd2011/} } |
Rudan J, Kersbergen B, van den Boom T and Hangos K (2013), "Performance analysis of MILP based model predictive control algorithms for dynamic railway scheduling", In European Control Conference (ECC2013), Juli 17-19 2013, Zurich. , pp. 4562-4567. |
BibTeX:
@conference{Rudan2013a, author = {Rudan, J. and Kersbergen, B. and van den Boom, T. and Hangos, K.M.}, title = {Performance analysis of MILP based model predictive control algorithms for dynamic railway scheduling}, booktitle = {European Control Conference (ECC2013), Juli 17-19 2013, Zurich}, year = {2013}, pages = {4562-4567}, note = {ISBN: 978-3-952-41734-8} } |
Rudan J, Szederkényi G and Hangos KM (2014), "Efficient Computation of Alternative Structures for Large Kinetic Systems Using Linear Programming", MATCH Commun. Math. Comput. Chem.. Vol. 71(1), pp. 71-92. |
BibTeX:
@article{Rudan2014, author = {J. Rudan and G. Szederkényi and K. M. Hangos}, title = {Efficient Computation of Alternative Structures for Large Kinetic Systems Using Linear Programming}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2014}, volume = {71}, number = {1}, pages = {71-92}, note = {ISSN: 0340-6253}, url = {http://match.pmf.kg.ac.rs/electronic_versions/Match71/n1/match71n1_71-92.pdf} } |
Rudan J, Szederkényi G and Hangos KM (2013), "Computing dynamically equivalent realizations of biochemical reaction networks with mass conservation", In ICNAAM 2013: 11th International Conference of Numerical Analysis and Applied Mathematics, 21–27 September, Rhodes, Greece, AIP Conference Proceedings. Vol. 1558, pp. 2356-2359. |
BibTeX:
@conference{Rudan2013b, author = {J. Rudan and G. Szederkényi and K. M. Hangos}, title = {Computing dynamically equivalent realizations of biochemical reaction networks with mass conservation}, booktitle = {ICNAAM 2013: 11th International Conference of Numerical Analysis and Applied Mathematics, 21–27 September, Rhodes, Greece, AIP Conference Proceedings}, year = {2013}, volume = {1558}, pages = {2356-2359}, note = {ISBN: 978-0-7354-1184-5}, doi = {10.1063/1.4826014} } |
Rudan J, Szederkényi G and Hangos KM (2012), "Effectively computing dynamically equivalent structures of large biochemical reaction networks", In International Conference on Bioinformatics and Computational Biology -- BIOCOMP BG 2012, 20-‐21 September, Varna, Bulgaria. , pp. 80.
[BibTeX] |
BibTeX:
@conference{Rudan2012, author = {J. Rudan and G. Szederkényi and K. M. Hangos}, title = {Effectively computing dynamically equivalent structures of large biochemical reaction networks}, booktitle = {International Conference on Bioinformatics and Computational Biology -- BIOCOMP BG 2012, 20-‐21 September, Varna, Bulgaria}, year = {2012}, pages = {80} } |
Rudan J, Szederkényi G, Hangos KM and Péni T (2014), "Polynomial time algorithms to determine weakly reversible realizations of chemical reaction networks", Journal of Mathematical Chemistry. Vol. 52(5), pp. 1386-1404. |
BibTeX:
@article{Rudan2014a, author = {J. Rudan and G. Szederkényi and K. M. Hangos and T. Péni}, title = {Polynomial time algorithms to determine weakly reversible realizations of chemical reaction networks}, journal = {Journal of Mathematical Chemistry}, year = {2014}, volume = {52}, number = {5}, pages = {1386-1404}, doi = {10.1007/s10910-014-0318-0} } |
Rudan J, Tuza Z and Szederkényi G (2010), "Using LMS-100 laser rangefinder for indoor metric map building", In IEEE International Symposium on Industrial Electronics - ISIE 2010, Bari, Italy, 4-7 July. (978-1-4244-6391-6/10), pp. 525-530. |
Abstract: The design and implementation of a scan matching based map building method is described in this paper. The brand new LMS-100 laser rangefinder was used and evaluated for point measurement and metric map building. The official driver of the rangefinder was migrated to Linux in order to be integrated into the applied software framework. The measurement results were compared to data obtained by the widely used LMS-200 device. Both sensors were mounted on a commercially available PowerBot differentially driven mobile robot. It is shown that for indoor robotic applications, the LMS-100 is similarly well-usable to the LMS-200 with significant advantages in compactness and power consumption. Furthermore, from a map-building point of view, the LMS-100 performs better in dense environments with obstacles having complex reflective surfaces. |
BibTeX:
@conference{Rudan2010, author = {J. Rudan and Z. Tuza and G. Szederkényi}, title = {Using LMS-100 laser rangefinder for indoor metric map building}, booktitle = {IEEE International Symposium on Industrial Electronics - ISIE 2010, Bari, Italy, 4-7 July}, year = {2010}, number = {978-1-4244-6391-6/10}, pages = {525-530} } |
Ruppert L and Hangos KM (2010), "Martingale approach in quantum state estimation using indirect measurements", In Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems -- MTNS 2010, 5--9 July, 2010, Budapest, Hungary. (ISBN 978-963-311-370-7), pp. 2049-2054. |
BibTeX:
@conference{Ruppert2010, author = {Ruppert, L. and Hangos, K. M.}, title = {Martingale approach in quantum state estimation using indirect measurements}, booktitle = {Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems -- MTNS 2010, 5--9 July, 2010, Budapest, Hungary}, year = {2010}, number = {ISBN 978-963-311-370-7}, pages = {2049-2054} } |
Ruppert L, Magyar A, Hangos K and Petz D (2008), "Towards optimal quantum state estimation of a qubit by using indirect measurements" (SCL-002/2008) |
BibTeX:
@techreport{Ruppert2008, author = {L. Ruppert and A. Magyar and K.M. Hangos and D. Petz}, title = {Towards optimal quantum state estimation of a qubit by using indirect measurements}, year = {2008}, number = {SCL-002/2008} } |
Ruppert L, Magyar A and Hangos KM (2008), "Compromising non-demolition and information gaining for qubit state estimation", In QP-PQ Quantum Probability and White Noise Analysis, XXII: Quantum Probability and Related Topics, Proc. of the 28th Conference, CIMAT-Guanajuato, Mexico, 2 – 8 September 2007. , pp. 212-224.
[BibTeX] |
BibTeX:
@conference{Ruppert2008a, author = {L. Ruppert and A. Magyar and K. M. Hangos}, editor = {J. C. Garcia and R. Queazada and S. B. Sontz}, title = {Compromising non-demolition and information gaining for qubit state estimation}, booktitle = {QP-PQ Quantum Probability and White Noise Analysis, XXII: Quantum Probability and Related Topics, Proc. of the 28th Conference, CIMAT-Guanajuato, Mexico, 2 – 8 September 2007}, year = {2008}, pages = {212-224} } |
Ruppert L, Virosztek D and Hangos KM (2012), "Optimal parameter estimation of Pauli channels", Journal of Physics A: Mathematical and Theoretical. Vol. 45, pp. 265305. |
BibTeX:
@article{Ruppert2012, author = {L. Ruppert and D. Virosztek and K. M. Hangos}, title = {Optimal parameter estimation of Pauli channels}, journal = {Journal of Physics A: Mathematical and Theoretical}, year = {2012}, volume = {45}, pages = {265305}, doi = {10.1088/1751-8113/45/26/265305} } |
Sándor AA, Soós BG, Cserey G and Szederkényi G (2009), "Ergonomic Remote Control Technique for Horizontal Rotors Equipped UAVs", In Proceedings of the 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal, November 3-5. , pp. 2243-2248. |
BibTeX:
@conference{Sandor2009, author = {A. A. Sándor and B. G. Soós and G. Cserey and G. Szederkényi}, title = {Ergonomic Remote Control Technique for Horizontal Rotors Equipped UAVs}, booktitle = {Proceedings of the 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal, November 3-5}, year = {2009}, pages = {2243-2248} } |
Schné T and Hangos KM (2011), "Decentralised controller structure design and retrofit of process systems based on graph theory", International Journal of Systems Science. Vol. 42, pp. 1023-1033. |
BibTeX:
@article{Schne2011a, author = {T. Schné and K. M. Hangos}, title = {Decentralised controller structure design and retrofit of process systems based on graph theory}, journal = {International Journal of Systems Science}, year = {2011}, volume = {42}, pages = {1023-1033}, doi = {10.1080/00207720903282964} } |
Seligmann B, Németh E, Hockings K, O'Brien C, Hangos KM and Cameron IT (2010), "A Structured, Blended Hazard Identification Framework of Advanced Process Diagnosis", In 13th International Symposium on Loss Prevention and Safety Promotion in the Process industries (Loss Prevention 2010), Brugge (BE), June 06 -- 09, 2010. , pp. WE-21-4, 1-8. |
BibTeX:
@conference{Seligmann2010, author = {Seligmann, B. and Németh, E. and Hockings, K. and O'Brien, C. and Hangos, K. M. and Cameron, I. T.}, title = {A Structured, Blended Hazard Identification Framework of Advanced Process Diagnosis}, booktitle = {13th International Symposium on Loss Prevention and Safety Promotion in the Process industries (Loss Prevention 2010), Brugge (BE), June 06 -- 09, 2010}, year = {2010}, pages = {WE-21-4, 1-8} } |
Seligmann BJ, Németh E, Hangos KM and Cameron IT (2012), "A blended hazard identi fi cation methodology to support process diagnosis", Journal of Loss Prevention in the Process Industries. Vol. 25, pp. 746-759. |
BibTeX:
@article{Seligmann2012, author = {B. J. Seligmann and E. Németh and K. M. Hangos and I. T. Cameron}, title = {A blended hazard identi fi cation methodology to support process diagnosis}, journal = {Journal of Loss Prevention in the Process Industries}, year = {2012}, volume = {25}, pages = {746-759}, doi = {10.1016/j.jlp.2012.04.012} } |
Stikkel G and Szederkényi G (2003), "Meddig teszteljünk?", Híradástechnika. Vol. 58, pp. 36-41.
[BibTeX] |
BibTeX:
@article{Stikkel2003, author = {G. Stikkel and G. Szederkényi}, title = {Meddig teszteljünk?}, journal = {Híradástechnika}, year = {2003}, volume = {58}, pages = {36--41} } |
Szabó K, Mika J and Hangos K (1975), "Effect Of Anions On Temperature-Dependence Of Hydrogen Overvoltage On Gallium Electrode", Magyar Kémiai Folyoirat. Vol. 81(1), pp. 21-25.
[BibTeX] |
BibTeX:
@article{SZABO1975, author = {Szabó, K. and Mika, J. and Hangos, K.}, title = {Effect Of Anions On Temperature-Dependence Of Hydrogen Overvoltage On Gallium Electrode}, journal = {Magyar Kémiai Folyoirat}, year = {1975}, volume = {81}, number = {1}, pages = {21--25} } |
Szabó K, Mika J and Hangos K (1974), "Investigation of hydrogen overvoltage on gallium electrode in system aqueous perchloric-acid acid hydrochloric-acid acid", Magyar Kémiai Folyóirat. Vol. 80, pp. 569-574.
[BibTeX] |
BibTeX:
@article{Szabo1974, author = {K. Szabó and J. Mika and K.M. Hangos}, title = {Investigation of hydrogen overvoltage on gallium electrode in system aqueous perchloric-acid acid hydrochloric-acid acid}, journal = {Magyar Kémiai Folyóirat}, year = {1974}, volume = {80}, pages = {569-574} } |
Szabó Z, Szederkényi G, Gáspár P, Varga I, Hangos KM and Bokor J (2010), "Identification and dynamic inversion-based control of a pressurizer at the Paks NPP", Control Engineering Practice. Vol. 18, pp. 554-565. |
Abstract: The paper presents the design of a pressure controlling tank located in the primary circuit of a Nuclear Power Plant. All steps from modeling through control design to implementation are detailed. Based on first engineering principles a second-order Wiener model is formulated and its unknown parameters are identified. The control design is based on a dynamic inversion method. The performance of the designed closed-loop system is tuned by an error feedback. The implemented controller is of a distributed structure including measurement and control PLCs, a continuous power controller and a special supervisor module. The nominal stability of the controller in the networked environment is analyzed by using the maximum allowable transmit interval. The hardware and software design and implementation obey the safety-critical requirements imposed by the special nature of the plant. |
BibTeX:
@article{Szabo2010, author = {Z. Szabó and G. Szederkényi and P. Gáspár and I. Varga and K. M. Hangos and J. Bokor}, title = {Identification and dynamic inversion-based control of a pressurizer at the Paks NPP}, journal = {Control Engineering Practice}, year = {2010}, volume = {18}, pages = {554-565}, doi = {10.1016/j.conengprac.2010.02.009} } |
Szederkényi G, Hangos K and Csercsik D (2010), "Computing Realizations of Reaction Kinetic Networks with Given Properties", In Coping with Complexity: Model Reduction and Data Analysis. Vol. 75, pp. 253-267. Springer. |
BibTeX:
@incollection{Szederkenyi2010, author = {Szederkényi, G. and Hangos, K.M. and Csercsik, D.}, editor = {A. N. Gorban and D. Roose}, title = {Computing Realizations of Reaction Kinetic Networks with Given Properties}, booktitle = {Coping with Complexity: Model Reduction and Data Analysis}, publisher = {Springer}, year = {2010}, volume = {75}, pages = {253-267}, url = {http://dx.doi.org/10.1007/978-3-642-14941-2}, doi = {10.1007/978-3-642-14941-2} } |
Szederkényi G (2007), "Design and implementation of the primary loop pressure controller in the Paks Nuclear Power Plant", In NSF Workshop on Real Time Control of Hybrid Systems, Budapest, Hungary, October 28-30.
[BibTeX] |
BibTeX:
@conference{Szederk'enyi2008, author = {G. Szederkényi}, title = {Design and implementation of the primary loop pressure controller in the Paks Nuclear Power Plant}, booktitle = {NSF Workshop on Real Time Control of Hybrid Systems, Budapest, Hungary, October 28-30}, year = {2007} } |
Szederkényi G (2013), "Computational Methods for the Analysis of Nonnegative Polynomial Systems", thesis for the title: Doctor of the Hungarian Academy of Sciences. |
BibTeX:
@misc{Szederkenyi2013, author = {Szederkényi, G.}, title = {Computational Methods for the Analysis of Nonnegative Polynomial Systems}, howpublished = {thesis for the title: Doctor of the Hungarian Academy of Sciences}, year = {2013} } |
Szederkényi G (2010), "Computing sparse and dense realizations of reaction kinetic systems", Journal of Mathematical Chemistry. Vol. 47, pp. 551-568. |
BibTeX:
@article{Szederkenyi2009b, author = {G. Szederkényi}, title = {Computing sparse and dense realizations of reaction kinetic systems}, journal = {Journal of Mathematical Chemistry}, year = {2010}, volume = {47}, pages = {551-568}, url = {http://www.springerlink.com}, doi = {10.1007/s10910-009-9525-5} } |
Szederkényi G (2010), "Computing reaction kinetic realizations of positive nonlinear systems using mixed integer programming", In 8th IFAC Symposium on Nonlinear Control Systems - NOLCOS 2010, Bologna, Italy, 1-3 September. , pp. ThP04.2. |
Abstract: The reaction kinetic realizations of nonnegative polynomial systems are studied in this paper. It is briefly reviewed that a wide class of positive systems can be written in or simply transformed to kinetic form. Based on the structure of kinetic realizations, valuable information can be obtained about the dynamical properties of the investigated systems using the results of chemical reaction network theory (CRNT). Since the realizations of a given system can have many different structures, mixed integer linear programming is used to generate the ones with required properties (i.e. the minimal/maximal number of reactions or complexes). |
BibTeX:
@conference{Szederkenyi2010a, author = {G. Szederkényi}, title = {Computing reaction kinetic realizations of positive nonlinear systems using mixed integer programming}, booktitle = {8th IFAC Symposium on Nonlinear Control Systems - NOLCOS 2010, Bologna, Italy, 1-3 September}, year = {2010}, pages = {ThP04.2} } |
Szederkényi G (2009), "Comment on "identifiability of chemical reaction networks" by G. Craciun and C. Pantea", Journal of Mathematical Chemistry. Vol. 45, pp. 1172-1174. |
BibTeX:
@article{Szederkenyi2009, author = {G. Szederkényi}, title = {Comment on "identifiability of chemical reaction networks" by G. Craciun and C. Pantea}, journal = {Journal of Mathematical Chemistry}, year = {2009}, volume = {45}, pages = {1172-1174}, url = {http://www.springerlink.com}, doi = {10.1007/s10910-008-9499-8} } |
Szederkényi G (2009), "Identifiability study of a pressurizer in a pressurized water nuclear power plant", In European Control Conference - ECC'09. , pp. 3503-3508. |
BibTeX:
@conference{Szederkenyi2009a, author = {G. Szederkényi}, title = {Identifiability study of a pressurizer in a pressurized water nuclear power plant}, booktitle = {European Control Conference - ECC'09}, year = {2009}, pages = {3503-3508}, note = {ISBN: 978-963-311-369-1} } |
Szederkényi G (2002), "Grey-box approach for the diagnosis, analysis and control of nonlinear process systems". Thesis at: Information Science PhD School, University of Veszprém. Veszprém, Hungary
[BibTeX] |
BibTeX:
@phdthesis{Szederkenyi2002d, author = {G. Szederkényi}, title = {Grey-box approach for the diagnosis, analysis and control of nonlinear process systems}, school = {Information Science PhD School, University of Veszprém}, year = {2002} } |
Szederkényi G (2001), "Analysis and control of nonlinear fermentation processes" Budapest, Hungary (SCL-01-2001)
[BibTeX] |
BibTeX:
@techreport{Szederkenyi2001a, author = {G. Szederkényi}, title = {Analysis and control of nonlinear fermentation processes}, year = {2001}, number = {SCL-01-2001} } |
Szederkényi G (1998), "Simultaneous fault detection of heat exhangers" Budapest, Hungary (SCL-05-1998)
[BibTeX] |
BibTeX:
@techreport{Szederkenyi1998, author = {G. Szederkényi}, title = {Simultaneous fault detection of heat exhangers}, year = {1998}, number = {SCL-05-1998} } |
Szederkényi G (1998), "Model-based fault detection of heat exchangers". Thesis at: Department of Applied Computer Science, University of Veszprém.
[BibTeX] |
BibTeX:
@mastersthesis{Szederkenyi1998a, author = {G. Szederkényi}, title = {Model-based fault detection of heat exchangers}, school = {Department of Applied Computer Science, University of Veszprém}, year = {1998} } |
Szederkényi G, Ács B and Szlobodnyik G (2016), "Structural analysis of kinetic systems with uncertain parameters", In 2nd IFAC Workshop on Thermodynamic Foundation of Mathematical Systems Theory - TFMST 2016, 28-30 September, 2016, Vigo, Spain. , pp. 1-4. |
BibTeX:
@conference{Szederkenyi2016, author = {G. Szederkényi and B. Ács and G. Szlobodnyik}, title = {Structural analysis of kinetic systems with uncertain parameters}, booktitle = {2nd IFAC Workshop on Thermodynamic Foundation of Mathematical Systems Theory - TFMST 2016, 28-30 September, 2016, Vigo, Spain}, year = {2016}, pages = {1-4} } |
Szederkényi G, Banga JR and Alonso AA (2012), "CRNreals: a toolbox for distinguishability and identifiability analysis of biochemical reaction networks", Bioinformatics. Vol. 28, pp. 1549. |
BibTeX:
@article{Szederkenyi2012c, author = {G. Szederkényi and J. R. Banga and A. A. Alonso}, title = {CRNreals: a toolbox for distinguishability and identifiability analysis of biochemical reaction networks}, journal = {Bioinformatics}, year = {2012}, volume = {28}, pages = {1549}, doi = {10.1093/bioinformatics/bts171} } |
Szederkényi G, Banga JR and Alonso AA (2011), "Inference of complex biological networks: distinguishability issues and optimization-based solutions", BMC Systems Biology. Vol. 5, pp. 177. |
BibTeX:
@article{Szederkenyi2011c, author = {G. Szederkényi and J. R. Banga and A. A. Alonso}, title = {Inference of complex biological networks: distinguishability issues and optimization-based solutions}, journal = {BMC Systems Biology}, year = {2011}, volume = {5}, pages = {177}, doi = {10.1186/1752-0509-5-177} } |
Szederkényi G, Eged K and Kanyár B (1997), "Nukleáris beavatkozások költség-optimális tervezése Matlab-Simulink rendszerrel", In Neumann János Kollokvium.
[BibTeX] |
BibTeX:
@conference{Szederkenyi1997, author = {G. Szederkényi and K. Eged and B. Kanyár}, title = {Nukleáris beavatkozások költség-optimális tervezése Matlab-Simulink rendszerrel}, booktitle = {Neumann János Kollokvium}, year = {1997} } |
Szederkényi G and Hangos K (2004), "Global stability and quadratic Hamiltonian structure in Lotka-Volterra and quasi-polynomial systems", Physics Letters A. Vol. 324, pp. 437-445. |
Abstract: We show that the global stability of quasi-polynomial (QP) and LotkaVolterra (LV) systems with the well-known logarithmic Lyapunov function is equivalent to the existence of a local generalized dissipative Hamiltonian description of the LV system with a diagonal quadratic form as a Hamiltonian function. The Hamiltonian function can be calculated and the quadratic dissipativity neighborhood of the origin can be estimated by solving linear matrix inequalities. |
BibTeX:
@article{Szederkenyi2004, author = {G. Szederkényi and K.M. Hangos}, title = {Global stability and quadratic Hamiltonian structure in Lotka-Volterra and quasi-polynomial systems}, journal = {Physics Letters A}, year = {2004}, volume = {324}, pages = {437--445}, doi = {10.1016/j.physleta.2004.03.012} } |
Szederkényi G, Hangos K, Bokor J and Vámos T (2002), "Linear output selection for feedback linearization", In 15th IFAC World Congress on Automatic Control. Barcelona, Spain , pp. 1-6 (on CD).
[BibTeX] |
BibTeX:
@conference{Szederkenyi2002c, author = {G. Szederkényi and K.M. Hangos and J. Bokor and T. Vámos}, editor = {E.F. Camacho and L. Basanez and J.A. de la Puente}, title = {Linear output selection for feedback linearization}, booktitle = {15th IFAC World Congress on Automatic Control}, year = {2002}, pages = {1--6 (on CD)} } |
Szederkényi G, Hangos K and Magyar A (2005), "On the time-reparametrization of quasi-polynomial systems", Physics Letters A. Vol. 334, pp. 288-294. |
Abstract: In this Letter we show that an important type of time-reparametrization problem in quasi-polynomial systems is equivalent to the feasibility of a suitably constructed bilinear matrix inequality where the unknowns are the coefficients of the Lyapunov function and the exponents in the time-reparametrization transformation. |
BibTeX:
@article{Szederkenyi2005, author = {G. Szederkényi and K.M. Hangos and A. Magyar}, title = {On the time-reparametrization of quasi-polynomial systems}, journal = {Physics Letters A}, year = {2005}, volume = {334}, pages = {288--294}, doi = {10.1016/j.physleta.2004.11.026} } |
Szederkényi G and Hangos KM (2011), "Finding complex balanced and detailed balanced realizations of chemical reaction networks", Journal of Mathematical Chemistry. Vol. 49, pp. 1163-1179. |
BibTeX:
@article{Szederkenyi2011a, author = {G. Szederkényi and K. M. Hangos}, title = {Finding complex balanced and detailed balanced realizations of chemical reaction networks}, journal = {Journal of Mathematical Chemistry}, year = {2011}, volume = {49}, pages = {1163-1179}, doi = {10.1007/s10910-011-9804-9} } |
Szederkényi G, Hangos KM and Csercsik D (2009), "Coping with Complexity: Model Reduction and Data Analysis" , pp. ???. Springer. |
BibTeX:
@inbook{Szederkenyi2009d, author = {Szederkényi, G. and Hangos, K. M. and Csercsik, D.}, editor = {D. Roose and A. N. Gorban}, title = {Coping with Complexity: Model Reduction and Data Analysis}, publisher = {Springer}, year = {2009}, pages = {???} } |
Szederkényi G, Hangos KM and Péni T (2011), "Maximal and minimal realizations of reaction kinetic systems: computation and properties", MATCH Commun. Math. Comput. Chem.. Vol. 65, pp. 309-332. |
Abstract: This paper presents new results about the optimization based generation of chemical reaction networks (CRNs) of higher deficiency. Firstly, it is shown that the graph structure of the realization containing the maximal number of reactions is unique if the set of possible complexes is fixed. Secondly, a mixed integer programming based numerical procedure is given for computing a realization containing the minimal/maximal number of complexes. Moreover, the linear inequalities corresponding to full reversibility of the CRN realization are also described. The theoretical results are illustrated on meaningful examples. |
BibTeX:
@article{Szederkenyi2011, author = {G. Szederkényi and K. M. Hangos and T. Péni}, title = {Maximal and minimal realizations of reaction kinetic systems: computation and properties}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2011}, volume = {65}, pages = {309-332} } |
Szederkényi G, Hangos KM and Tuza Z (2012), "Finding weakly reversible realizations of chemical reaction networks using optimization", MATCH Commun. Math. Comput. Chem.. Vol. 67, pp. 193-212. |
Abstract: An algorithm is given in this paper for the computation of dynamically equivalent weakly reversible realizations with the maximal number of reactions, for chemical reaction networks (CRNs) with mass action kinetics. The original problem statement can be traced back at least 30 years ago. The algorithm uses standard linear and mixed integer linear programming, and it is based on elementary graph theory and important former results on the dense realizations of CRNs. The proposed method is also capable of determining if no dynamically equivalent weakly reversible structure exists for a given reaction network with a previously fixed complex set. |
BibTeX:
@article{Szederkenyi2011b, author = {G. Szederkényi and K. M. Hangos and Zs. Tuza}, title = {Finding weakly reversible realizations of chemical reaction networks using optimization}, journal = {MATCH Commun. Math. Comput. Chem.}, year = {2012}, volume = {67}, pages = {193-212}, url = {http://arxiv.org/abs/1103.4741} } |
Szederkényi G, Kovács M and Hangos K (2001), "Reachability of nonlinear fed-batch fermentation processes", In The 2nd International PhD Student Workshop on Systems and Control: Young Generation's Viewpoint. Balatonfüred, Hungary , pp. 41-54.
[BibTeX] |
BibTeX:
@conference{Szederkenyi2001b, author = {G. Szederkényi and M. Kovács and K.M. Hangos}, title = {Reachability of nonlinear fed-batch fermentation processes}, booktitle = {The 2nd International PhD Student Workshop on Systems and Control: Young Generation's Viewpoint}, year = {2001}, pages = {41--54} } |
Szederkényi G, Kovács M and Hangos KM (2002), "Reachability of nonlinear fed-batch fermentation processes", International Journal of Robust and Nonlinear Control. Vol. 12, pp. 1109-1124. |
Abstract: The reachability of a simple nonlinear fed-batch fermentation process model is investigated in this paper. It is shown that the known difficulties of controlling such processes are primarily caused by the fact that the rank of the reachability distribution is always less than the number of state variables. Furthermore, a co-ordinates transformation is calculated analytically that shows the nonlinear combination of the state variables which is independent of the input. The results of the reachability analysis and that of the co-ordinates transformation are independent of the source function in the system model. The results are extended to the four state variable non-isotherm case, and to nonlinear fed-batch chemical reactors with general reaction kinetics. |
BibTeX:
@article{Szederkenyi2002a, author = {G. Szederkényi and M. Kovács and K. M. Hangos}, title = {Reachability of nonlinear fed-batch fermentation processes}, journal = {International Journal of Robust and Nonlinear Control}, year = {2002}, volume = {12}, pages = {1109--1124}, doi = {10.1002/rnc.686} } |
Szederkényi G, Kristensen N, Hangos K and Joergensen S (2001), "Nonlinear analysis and control of a continuous fermentation process", In 11th European Symposium on Computer Aided Process Engineering (ESCAPE-11). Kolding, Denmark , pp. 787-792.
[BibTeX] |
BibTeX:
@conference{Szederkenyi2001, author = {G. Szederkényi and N.R. Kristensen and K.M. Hangos and S.B. Joergensen}, editor = {R. Gani and S.B. Joergensen}, title = {Nonlinear analysis and control of a continuous fermentation process}, booktitle = {11th European Symposium on Computer Aided Process Engineering (ESCAPE-11)}, year = {2001}, pages = {787--792} } |
Szederkényi G, Kristensen N, Hangos K and Jřrgensen S (2001), "Nonlinear analysis and control of a continuous fermentation process", Computer Aided Chemical Engineering. Vol. 9, pp. 787-792. |
BibTeX:
@article{Szederkenyi2001c, author = {G. Szederkényi and N.R. Kristensen and K.M. Hangos and S.B. Jřrgensen}, title = {Nonlinear analysis and control of a continuous fermentation process}, journal = {Computer Aided Chemical Engineering}, year = {2001}, volume = {9}, pages = {787-792}, doi = {10.1016/S1570-7946(01)80125-5} } |
Szederkényi G, Kristensen NR, Hangos KM and Jorgensen SB (2002), "Nonlinear analysis and control of a continuous fermentation process", Computers and Chemical Engineering. Vol. 26, pp. 659-670. |
Abstract: Different types of nonlinear controllers are designed and compared for a simple continuous bioreactor operating near optimal productivity. This operating point is located close to a fold bifurcation point. Nonlinear analysis of stability, controllability and zero dynamics is used to investigate open-loop system properties, to explore the possible control difficulties and to select the system output to be used in the control structure. A wide range of controllers are tested including pole placement and LQ controllers, feedback and inputoutput linearization controllers and a nonlinear controller based on direct passivation. The comparison is based on time-domain performance and on investigating the stability region, robustness and tuning possibilities of the controllers. Controllers using partial state feedback of the substrate concentration and not directly depending on the reaction rate are recommended for the simple fermenter. Passivity based controllers have been found to be globally stable, not very sensitive to the uncertainties in the reaction rate and controller parameter but they require full nonlinear state feedback. |
BibTeX:
@article{Szederkenyi2002b, author = {G. Szederkényi and N. R. Kristensen and K. M. Hangos and S. B. Jorgensen}, title = {Nonlinear analysis and control of a continuous fermentation process}, journal = {Computers and Chemical Engineering}, year = {2002}, volume = {26}, pages = {659--670}, doi = {10.1016/S0098-1354(01)00793-1} } |
Szederkényi G, Lipták G, Rudan J and Hangos K (2013), "Optimization-based design of kinetic feedbacks for nonnegative polynomial systems", In IEEE 9th International Conference of Computational Cybernetics, July 8-10, Tihany, Hungary. , pp. 67-72. |
BibTeX:
@conference{Szederkenyi2013a, author = {Szederkényi, G. and Lipták, G. and Rudan, J. and Hangos, K.M.}, title = {Optimization-based design of kinetic feedbacks for nonnegative polynomial systems}, booktitle = {IEEE 9th International Conference of Computational Cybernetics, July 8-10, Tihany, Hungary}, year = {2013}, pages = {67-72}, note = {ISBN: 978-1-4799-0063-3}, doi = {10.1109/ICCCyb.2013.6617563} } |
Szederkényi G, Magyar A and Hangos K (2006), "Quasi-polynomial and Lotka-Volterra representation in nonlinear systems and control theory", In Proceedings of the Workshop on System Identification and Control Systems. Budapest, Hungary (ISBN 963-421-586-6), pp. 147-163. Advanced Vehicles and Vehicle Control Knowledge Center of BME. |
BibTeX:
@conference{Szederkenyi2006, author = {G. Szederkényi and A. Magyar and K.M. Hangos}, editor = {J. Bokor and K.M. Hangos}, title = {Quasi-polynomial and Lotka-Volterra representation in nonlinear systems and control theory}, booktitle = {Proceedings of the Workshop on System Identification and Control Systems}, publisher = {Advanced Vehicles and Vehicle Control Knowledge Center of BME}, year = {2006}, number = {ISBN 963-421-586-6}, pages = {147--163} } |
Szederkényi G, Péni T, Gáspár P and Bokor J (2009), "Networked control approaches for a nuclear power plant pressurizer subsystem", In 1st IFAC Workshop on Estimation and Control of Networked Systems, Venice, Italy. , pp. FrGT1.4. |
BibTeX:
@conference{Szederkenyi2009c, author = {G. Szederkényi and T. Péni and P. Gáspár and J. Bokor}, title = {Networked control approaches for a nuclear power plant pressurizer subsystem}, booktitle = {1st IFAC Workshop on Estimation and Control of Networked Systems, Venice, Italy}, year = {2009}, pages = {FrGT1.4} } |
Szederkényi G, Schné T and Hangos K (2003), "Zero dynamics of continuous and fed-batch bioreactors", In European Control Conference -- ECC 2003. Cambridge, UK , pp. on CD.
[BibTeX] |
BibTeX:
@conference{Szederkenyi2003, author = {G. Szederkényi and T. Schné and K.M. Hangos}, title = {Zero dynamics of continuous and fed-batch bioreactors}, booktitle = {European Control Conference -- ECC 2003}, year = {2003}, pages = {on CD} } |
Szederkényi G, Szabó Z, Bokor J and Hangos K (2008), "Analysis of the networked implementation of the primary circuit pressurizer controller at a nuclear power plant", In 16th Mediterranean Conference on Control and Automation, MED'08, Ajaccio, Corsica, France. , pp. 1604-1609. |
BibTeX:
@conference{Szederkenyi2008, author = {G. Szederkényi and Z. Szabó and J. Bokor and K.M. Hangos}, title = {Analysis of the networked implementation of the primary circuit pressurizer controller at a nuclear power plant}, booktitle = {16th Mediterranean Conference on Control and Automation, MED'08, Ajaccio, Corsica, France}, year = {2008}, pages = {1604-1609}, note = {ISBN: 978-1-4244-2505-1} } |
Szederkényi G, Tuza ZA and Hangos KM (2012), "Determining Biochemical Reaction Network Structures for Kinetic Polynomial Models with Uncertain Coefficients", AIP Conference Proceedings. Vol. 1479, pp. 2427-2430. |
BibTeX:
@article{Szederkenyi2012a, author = {G. Szederkényi and Z. A. Tuza and K. M. Hangos}, title = {Determining Biochemical Reaction Network Structures for Kinetic Polynomial Models with Uncertain Coefficients}, journal = {AIP Conference Proceedings}, year = {2012}, volume = {1479}, pages = {2427-2430}, doi = {10.1063/1.4756685} } |
Szederkényi G, Tuza Z and Hangos K (2012), "Dynamical equivalence and linear conjugacy of biochemical reaction network models", In 8th IFAC Symposium on Biological and Medical Systems, Budapest, Hungary, 29–31 August. , pp. 125-130. |
Abstract: The distinguishability and identifiability of biological network models are key properties influencing the reliability of structural and parametric identification of such models. Recently, several new results have been published about dynamically equivalent and linearly conjugate reaction networks. In this paper, the notion and importance of dynamical equivalence and linear conjugacy of biochemical network models obeying the mass action law is shown. For this, new concepts in the form of core complexes and core reactions for linearly conjugate networks are introduced. Two examples illustrate the developed computation methods. |
BibTeX:
@conference{Szederkenyi2012, author = {G. Szederkényi and Z.A. Tuza and K.M. Hangos}, title = {Dynamical equivalence and linear conjugacy of biochemical reaction network models}, booktitle = {8th IFAC Symposium on Biological and Medical Systems, Budapest, Hungary, 29–31 August}, year = {2012}, pages = {125-130}, doi = {10.3182/20120829-3-HU-2029.00042} } |
Szederkényi G, Tuza Z and Péni T (2012), "New Results and Methods for Computing Dynamically Equivalent and Linearly Conjugate Reaction Network Structures", In SIAM Conference on the Life Sciences -- SIAM LS 2012, 7-10 August, San Diego, USA. , pp. MS1-3-45. |
BibTeX:
@conference{Szederkenyi2012b, author = {G. Szederkényi and Z. Tuza and T. Péni}, title = {New Results and Methods for Computing Dynamically Equivalent and Linearly Conjugate Reaction Network Structures}, booktitle = {SIAM Conference on the Life Sciences -- SIAM LS 2012, 7-10 August, San Diego, USA}, year = {2012}, pages = {MS1-3-45} } |
Szederkényi G and Varga I (2007), "Design and implementation of the primary circuit pressure controller at the Paks Nuclear Power Plant", In Proc. of the 8th International PhD Workshop: Young Generation Viewpoint, Balatonfüred, Hungary., September, 2007.
[BibTeX] |
BibTeX:
@conference{Szederkenyi2007, author = {G. Szederkényi and I. Varga}, title = {Design and implementation of the primary circuit pressure controller at the Paks Nuclear Power Plant}, booktitle = {Proc. of the 8th International PhD Workshop: Young Generation Viewpoint, Balatonfüred, Hungary}, year = {2007} } |
Szederkényi G, Weyer E and Hangos K (1998), "Simultaneous Fault Detection of Heat Exchangers", In IFAC Workshop on Fault Detection and Supervision in the Chemical Process Industries. , pp. 1-6.
[BibTeX] |
BibTeX:
@conference{Szederk'enyi1998, author = {G. Szederkényi and E. Weyer and K.M. Hangos}, title = {Simultaneous Fault Detection of Heat Exchangers}, booktitle = {IFAC Workshop on Fault Detection and Supervision in the Chemical Process Industries}, year = {1998}, pages = {1--6}, note = {ISBN: 978-0080432335} } |
Szücs A, Gerzson M and Hangos KM (1998), "An intelligent diagnostic system based on Petri nets", Computers & Chemical Engineering. Vol. 22(9), pp. 1335-1344.
[BibTeX] |
BibTeX:
@article{Szucs1998, author = {Szücs, A. and Gerzson, M. and Hangos, K. M.}, title = {An intelligent diagnostic system based on Petri nets}, journal = {Computers & Chemical Engineering}, year = {1998}, volume = {22}, number = {9}, pages = {1335--1344} } |
Szücs A, Gerzson M and Hangos KM (1996), "An intelligent diagnostic system based on Petri nets", Computers & Chemical Engineering. Vol. 20, pp. S635-S640. |
Abstract: An intelligent event-oriented diagnosis methodology and diagnostic system architecture is proposed in this paper. The dynamic behaviour of the process system in different faulty modes is described by cause-consequence event sequences represented by coloured Petri nets (CPNs). The dynamic model of the system is assumed to be partially unknown and it is refined using the observed event sequences by a learning method. The real-time diagnosis operates on the CPN model of the system and on the expected operating procedures comparing observed event sequences to the model-based prediction. The diagnostic system architecture consists of an event archivator, a data structure generator, a real-time diagnostic monitor and a learning subsystem. |
BibTeX:
@article{Szucs1996, author = {Szücs, A. and Gerzson, M. and Hangos, K. M.}, title = {An intelligent diagnostic system based on Petri nets}, journal = {Computers & Chemical Engineering}, year = {1996}, volume = {20}, pages = {S635--S640} } |
Tóth A and Hangos K (2016), "A diagnostic method based on clustering qualitative event sequences", Computers & Chemical Engineering., dec, 2016. Vol. 95, pp. 58-70. Elsevier BV. |
BibTeX:
@article{Toth2016, author = {A. Tóth and K.M. Hangos}, title = {A diagnostic method based on clustering qualitative event sequences}, journal = {Computers & Chemical Engineering}, publisher = {Elsevier BV}, year = {2016}, volume = {95}, pages = {58--70}, doi = {10.1016/j.compchemeng.2016.09.001} } |
Tesar L, Dolanc G, Szederkényi G, Kárny M, Kadlec J, Juricic D, Hangos K and Kinnaert M (1999), "A Toolbox For Model-Based Fault Detection and Isolation", In European Control Conference - ECC 99. Karlsruhe, Germany , pp. 1-6 (on CD).
[BibTeX] |
BibTeX:
@conference{Tesar1999, author = {Tesar, L. and Dolanc, G. and Szederkényi, G. and Kárny, M. and Kadlec, J. and Juricic, D. and Hangos, K.M. and Kinnaert, M.}, title = {A Toolbox For Model-Based Fault Detection and Isolation}, booktitle = {European Control Conference - ECC 99}, year = {1999}, pages = {1--6 (on CD)} } |
Tóth A, Hangos K and Werner-Stark A (2013), "A model base diagnosis method for discrete dynamic processes using event sequences", In Factory Automation 2013 Conference, May 21-22, Veszprém, Hungary. , pp. 114-119. |
BibTeX:
@conference{Toth2013, author = {A. Tóth and K.M. Hangos and A. Werner-Stark}, title = {A model base diagnosis method for discrete dynamic processes using event sequences}, booktitle = {Factory Automation 2013 Conference, May 21-22, Veszprém, Hungary}, year = {2013}, pages = {114-119} } |
Tóth A, Hangos KM and Werner-Stark A (2012), "HAZID information based operational procedure diagnosis method", In 12th International PhD Workshop on Systems and Control, Veszprem, 2012. aug. 27. Veszprem (ISBN 978-615-5044-71-7), pp. 1-6 (on CD). University of Pannonia. |
BibTeX:
@conference{Toth2012, author = {A. Tóth and K. M. Hangos and A. Werner-Stark}, editor = {A. Magyar}, title = {HAZID information based operational procedure diagnosis method}, booktitle = {12th International PhD Workshop on Systems and Control, Veszprem, 2012. aug. 27}, publisher = {University of Pannonia}, year = {2012}, number = {ISBN 978-615-5044-71-7}, pages = {1-6 (on CD)} } |
Tóth A, Hangos KM and Werner-Stark A (2013), "A structured model-based diagnosis method for discrete dynamic processes using event sequences", Hungarian Journal of Industry and Chemistry. Vol. 41(1), pp. 59-64.
[BibTeX] |
BibTeX:
@article{Toth2013a, author = {A. Tóth and K. M. Hangos and A. Werner-Stark}, title = {A structured model-based diagnosis method for discrete dynamic processes using event sequences}, journal = {Hungarian Journal of Industry and Chemistry}, year = {2013}, volume = {41}, number = {1}, pages = {59-64} } |
Tóth A, Németh E and Hangos KM (2010), "Coloured Petri Net Diagnosers for Lumped Process Systems", In KES'2010, 14th International Conference on Knowledge-Based and intelligent information & Engineering Systems, 8 -- 10 September 2010 Cardiff, Wales, UK. , pp. 389-398. |
BibTeX:
@conference{Toth2010, author = {Tóth, A. and Németh, E. and Hangos, K. M.}, title = {Coloured Petri Net Diagnosers for Lumped Process Systems}, booktitle = {KES'2010, 14th International Conference on Knowledge-Based and intelligent information & Engineering Systems, 8 -- 10 September 2010 Cardiff, Wales, UK}, year = {2010}, pages = {389--398} } |
Tóth A, Werner-Stark A and Hangos KM (2014), "A structural decomposition-based diagnosis method for dynamic process systems using HAZID information", Journal of Loss Prevention in the Process Industries. Vol. 31(1), pp. 97-104. |
BibTeX:
@article{Toth2014, author = {A. Tóth and A. Werner-Stark and K. M. Hangos}, title = {A structural decomposition-based diagnosis method for dynamic process systems using HAZID information}, journal = {Journal of Loss Prevention in the Process Industries}, year = {2014}, volume = {31}, number = {1}, pages = {97-104}, doi = {10.1016/j.jlp.2014.07.005} } |
Tuza ZA, Ács B, Szederkényi G and Allgöwer F (2016), "Efficient computation of all distinct realization structures of kinetic systems", In 6th IFAC Conference on Foundations of Systems Biology in Engineering, 9-12 October, 2016, Magdeburg, Germany. , pp. 1-6. |
BibTeX:
@conference{Tuza2016, author = {Z. A. Tuza and B. Ács and G. Szederkényi and F. Allgöwer}, title = {Efficient computation of all distinct realization structures of kinetic systems}, booktitle = {6th IFAC Conference on Foundations of Systems Biology in Engineering, 9-12 October, 2016, Magdeburg, Germany}, year = {2016}, pages = {1-6} } |
Tuza ZA, Siegal-Gaskins D, Kim J and Szederkényi G (2015), "Analysis-based Parameter Estimation of an in vitro Transcription-Translation System", In 14th Annual European Control Conference, ECC 2015, 07.15. - 07. 17. 2015, Linz, Austria. , pp. 1554-1560. |
BibTeX:
@conference{Tuza2015a, author = {Z. A. Tuza and D. Siegal-Gaskins and J. Kim and G. Szederkényi}, title = {Analysis-based Parameter Estimation of an in vitro Transcription-Translation System}, booktitle = {14th Annual European Control Conference, ECC 2015, 07.15. - 07. 17. 2015, Linz, Austria}, year = {2015}, pages = {1554-1560} } |
Tuza ZA, Singhal V, Kim J and Murray RM (2013), "An In Silico Modeling Toolbox for Rapid Prototyping of Circuits in a Biomolecular “Breadboard” System", In 52nd IEEE Conference on Decision and Control (CDC 2013), Dec. 10-13, Florence. |
BibTeX:
@conference{Tuza2013a, author = {Z. A. Tuza and V. Singhal and J. Kim and R. M. Murray}, title = {An In Silico Modeling Toolbox for Rapid Prototyping of Circuits in a Biomolecular “Breadboard” System}, booktitle = {52nd IEEE Conference on Decision and Control (CDC 2013), Dec. 10-13, Florence}, year = {2013} } |
Tuza ZA, Szederkényi G, Hangos KM, Alonso AA and Banga JR (2013), "Computing all sparse kinetic structures for a Lorenz system using optimization", International Journal of Bifurcation and Chaos. Vol. 23, pp. 1350141-1-1350141-17. |
Abstract: In this paper, all possible sparse chemical reaction network structures of a classical three-dimensional Lorenz system are computed assuming a given chemical complex set. The original nonkinetic equations are transformed into kinetic form using two different approaches: firstly, using a state-dependent time-rescaling and secondly, by applying the theory of X-factorable systems. Using the notions of core reactions and core complexes, an effective optimization-based computation approach is proposed for the calculation of all structurally different sparse reaction graphs. The resulting structures are briefly analyzed and compared from a structural point of view. |
BibTeX:
@article{Tuza2013, author = {Z. A. Tuza and G. Szederkényi and K. M. Hangos and A. A. Alonso and J. R. Banga}, title = {Computing all sparse kinetic structures for a Lorenz system using optimization}, journal = {International Journal of Bifurcation and Chaos}, year = {2013}, volume = {23}, pages = {1350141-1--1350141--17}, note = {ISSN: 0218-1274}, doi = {10.1142/S0218127413501411} } |
Tuza ZA and Szederkényi G (2015), "Computing Core Reactions of Uncertain Polynomial Kinetic Systems", In 23rd Mediterranean Conference on Control and Automation, MED 2015, 06. 16. - 06. 19. 2015, Torremolinos, Spain. , pp. 1187-1194. |
BibTeX:
@conference{Tuza2015, author = {Z. A. Tuza and G. Szederkényi}, title = {Computing Core Reactions of Uncertain Polynomial Kinetic Systems}, booktitle = {23rd Mediterranean Conference on Control and Automation, MED 2015, 06. 16. - 06. 19. 2015, Torremolinos, Spain}, year = {2015}, pages = {1187-1194} } |
Tuza Z, Rudan J and Szederkényi G (2010), "Developing an integrated software environment for mobile robot navigation and control", In 2010 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2010; Zurich; 15 September 2010 through 17 September 2010. , pp. no. 5647506 (on CD). |
BibTeX:
@conference{Tuza2010, author = {Z. Tuza and J. Rudan and G. Szederkényi}, title = {Developing an integrated software environment for mobile robot navigation and control}, booktitle = {2010 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2010; Zurich; 15 September 2010 through 17 September 2010}, year = {2010}, pages = {no. 5647506 (on CD)}, note = {ISBN: 978-142445864-6}, doi = {10.1109/IPIN.2010.5647506} } |
Tuza Z, Szederkényi G and Hangos K (2002), "The effect of modeling assumptions on the differential index of lumped process models", In European Symposium on Computer Aided Process Engineering - ESCAPE 12.. , pp. 979-984.
[BibTeX] |
BibTeX:
@conference{Tuza2002, author = {Zs. Tuza and G. Szederkényi and K.M. Hangos}, editor = {J. Grievink and J. van Schijndel}, title = {The effect of modeling assumptions on the differential index of lumped process models}, booktitle = {European Symposium on Computer Aided Process Engineering - ESCAPE 12.}, year = {2002}, pages = {979-984} } |
Tuza Z, Szederkényi G and Hangos K (2002), "The effect of modelling assumptions on the differential index of lumped process models", Computer Aided Chemical Engineering. Vol. 10, pp. 979-984. |
Abstract: The effect of model simplification assumptions on the differential index of DAE process models is investigated in this paper. Efficient incremental graph-theoretical algorithms are proposed to follow the changes in the variable-equation assignments during the modelling process. Case studies are used to demonstrate the operation of the algorithms and the effect of steady-state assumptions on the differential index of a simple process model. |
BibTeX:
@article{Tuza2002a, author = {Zs. Tuza and G. Szederkényi and K.M. Hangos}, title = {The effect of modelling assumptions on the differential index of lumped process models}, journal = {Computer Aided Chemical Engineering}, year = {2002}, volume = {10}, pages = {979-984}, doi = {10.1016/S1570-7946(02)80191-2} } |
Vámos T, Bokor J and Hangos K (1999), "The ubiquity of system science philosophy and teaching", Large Scale Systems: Theory And Applications 1998 (Lss'98), Vol 1., In Large Scale Systems: Theory And Applications 1998 (Lss'98), Vol 1. , pp. 11-16. |
Abstract: An interim report about a multimedia presentation started at the San Francisco IFAC Congress and is to be demonstrated in a complete version at the Beijing World Congress. The paper reports about a new view and presentation way of basic system science principles. Copyright (C) 1998 IFAC. |
BibTeX:
@conference{Vamos1999, author = {Vámos, T. and Bokor, J. and Hangos, K.}, title = {The ubiquity of system science philosophy and teaching}, booktitle = {Large Scale Systems: Theory And Applications 1998 (Lss'98), Vol 1}, journal = {Large Scale Systems: Theory And Applications 1998 (Lss'98), Vol 1}, year = {1999}, pages = {11--16} } |
Varga E and Hangos K (1993), "The effect of the heat exchanger network topology on the network control properties", Control Engineering Practice. Vol. 1(2), pp. 375-380.
[BibTeX] |
BibTeX:
@article{Varga1993, author = {E.I. Varga and K.M. Hangos}, title = {The effect of the heat exchanger network topology on the network control properties}, journal = {Control Engineering Practice}, year = {1993}, volume = {1}, number = {2}, pages = {375-380} } |
Varga EI, Bokor J and Hangos KM (1995), "The effect of design parameters on robust performance", Adaptive Systems In Control And Signal Processing 1995., In Adaptive Systems In Control And Signal Processing 1995. , pp. 333-338.
[BibTeX] |
BibTeX:
@conference{Varga1995, author = {Varga, E. I. and Bokor, J. and Hangos, K. M.}, title = {The effect of design parameters on robust performance}, booktitle = {Adaptive Systems In Control And Signal Processing 1995}, journal = {Adaptive Systems In Control And Signal Processing 1995}, year = {1995}, pages = {333--338} } |
Varga EI, Bokor J and Hangos KM (1994), "Grey Dynamics Of Heat Exchanger Networks", Automatic Control - World Congress 1993, Vol 5., In Automatic Control - World Congress 1993, Vol 5. , pp. 493-498.
[BibTeX] |
BibTeX:
@conference{VARGA1994, author = {Varga, E. I. and Bokor, J. and Hangos, K. M.}, title = {Grey Dynamics Of Heat Exchanger Networks}, booktitle = {Automatic Control - World Congress 1993, Vol 5}, journal = {Automatic Control - World Congress 1993, Vol 5}, year = {1994}, pages = {493--498} } |
Varga EI, Bokor J and Hangos KM (1994), "Robust Analysis Of Potential Large Overshoots In Heat-Exchanger Networks", Proceedings Of The 1994 American Control Conference, Vols 1-3., In Proceedings Of The 1994 American Control Conference, Vols 1-3. , pp. 1422-1426.
[BibTeX] |
BibTeX:
@conference{VARGA1994a, author = {Varga, E. I. and Bokor, J. and Hangos, K. M.}, title = {Robust Analysis Of Potential Large Overshoots In Heat-Exchanger Networks}, booktitle = {Proceedings Of The 1994 American Control Conference, Vols 1-3}, journal = {Proceedings Of The 1994 American Control Conference, Vols 1-3}, year = {1994}, pages = {1422--1426} } |
Varga EI and Hangos KM (1992), "The Effect Of The Heat-Exchanger Network Topology On The Network Control Properties", System Structure And Control., In System Structure And Control. , pp. 220-223.
[BibTeX] |
BibTeX:
@conference{VARGA1992, author = {Varga, E. I. and Hangos, K. M.}, title = {The Effect Of The Heat-Exchanger Network Topology On The Network Control Properties}, booktitle = {System Structure And Control}, journal = {System Structure And Control}, year = {1992}, pages = {220--223} } |
Varga EI, Hangos KM and Szigeti F (1995), "Controllability And Observability Of Heat-Exchanger Networks In The Time-Varying Parameter Case", Control Engineering Practice. Vol. 3(10), pp. 1409-1419. |
Abstract: In this paper the structural controllability and observability of heat exchanger networks are determined from qualitative information about the heat exchangers and their network topology. The heat exchanger network is modelled as a time-varying linear system based on first engineering principles where the effect of the flowrate variations is described by unknown time-varying parameters, inlet temperature variations are regarded as disturbances and external heaters/coolers are considered as input variables. Necessary and sufficient conditions for structural controllability and observability of heat exchanger networks are derived, based on an extended Kalman-type rank criterion for linear systems with time-varying parameters. Determining the structural controllability and observability of heat exchanger networks needs only checks for the input and output connectability of the network in both constant and time-varying parameter cases. The results are extended to the more-practical case where bypass ratios are also used as control variables and where more than one time-varying parameter enters into the state-space matrices. |
BibTeX:
@article{VARGA1995, author = {Varga, E. I. and Hangos, K. M. and Szigeti, F.}, title = {Controllability And Observability Of Heat-Exchanger Networks In The Time-Varying Parameter Case}, journal = {Control Engineering Practice}, year = {1995}, volume = {3}, number = {10}, pages = {1409--1419} } |
Varga EI, Kovács GZ, Jorgensen SB and Hangos KM (1995), "Robust analysis of distillation column dynamics", Dynamics And Control Of Chemical Reactors, Distillation Columns And Batch Processes (Dycord(Plus) '95)., In Dynamics And Control Of Chemical Reactors, Distillation Columns And Batch Processes (Dycord(Plus) '95). , pp. 333-338.
[BibTeX] |
BibTeX:
@conference{Varga1995a, author = {Varga, E. I. and Kovács, G. Z. and Jorgensen, S. B. and Hangos, K. M.}, title = {Robust analysis of distillation column dynamics}, booktitle = {Dynamics And Control Of Chemical Reactors, Distillation Columns And Batch Processes (Dycord(Plus) '95)}, journal = {Dynamics And Control Of Chemical Reactors, Distillation Columns And Batch Processes (Dycord(Plus) '95)}, year = {1995}, pages = {333--338} } |
Varga I, Szederkényi G, Gáspár P and Bokor J (2008), "Implementation of Dynamic Inversion-Based Control of a Pressurizer at the Paks NPP", In 2008 IEEE Multi-conference on Systems and Control, San Antonio, Texas, USA. |
BibTeX:
@conference{Varga2008, author = {I. Varga and G. Szederkényi and P. Gáspár and J. Bokor}, title = {Implementation of Dynamic Inversion-Based Control of a Pressurizer at the Paks NPP}, booktitle = {2008 IEEE Multi-conference on Systems and Control, San Antonio, Texas, USA}, year = {2008} } |
Varga I, Szederkényi G, Hangos K and Bokor J (2006), "Modeling and model identification of a pressurizer at the Paks Nuclear Power Plant", In 14th IFAC Symposium on System Identification -- SYSID 2006. Newcastle, Australia, March, 2006. , pp. 678-683.
[BibTeX] |
BibTeX:
@conference{Varga2006, author = {I. Varga and G. Szederkényi and K.M. Hangos and J. Bokor}, title = {Modeling and model identification of a pressurizer at the Paks Nuclear Power Plant}, booktitle = {14th IFAC Symposium on System Identification -- SYSID 2006}, year = {2006}, pages = {678--683} } |
Veres J, Cserey G and Szederkényi G (2013), "Bio-inspired backlash reduction of a low-cost robotic joint using closed-loop-commutated stepper motors", Robotica. Vol. 31, pp. 789-796. |
BibTeX:
@article{Veres2013, author = {Veres, J. and Cserey, G. and Szederkényi, G.}, title = {Bio-inspired backlash reduction of a low-cost robotic joint using closed-loop-commutated stepper motors}, journal = {Robotica}, year = {2013}, volume = {31}, pages = {789-796}, note = {ISSN: 0263-5747}, doi = {10.1017/S0263574713000015} } |
Werner-Stark A, Dulai T and Hangos K (2013), "Cooperative Optimal Route Planning of Accumulator-Bank Servicing Robots", In ICSEA 2013: The Eight International Conference on Software Engineering Advances, Oct. 27-Nov. 1, Venice, Italy. (ISBN: 978-1-61208-304-9), pp. 408-413. |
BibTeX:
@conference{Werner-Stark2013, author = {A. Werner-Stark and T. Dulai and K.M. Hangos}, title = {Cooperative Optimal Route Planning of Accumulator-Bank Servicing Robots}, booktitle = {ICSEA 2013: The Eight International Conference on Software Engineering Advances, Oct. 27-Nov. 1, Venice, Italy}, year = {2013}, number = {ISBN: 978-1-61208-304-9}, pages = {408-413} } |
Werner-Stark Á, Dulai T and Hangos KM (2011), "Applicability of extended genetic algorithms for process mining", In Matematikát, fizikát és informatikát oktatók XXXV. konferenciája - MAFIOK 2011. , pp. 1-10 (on DVD). |
BibTeX:
@conference{Werner-Stark2011c, author = {Á. Werner-Stark and T. Dulai and K. M. Hangos}, title = {Applicability of extended genetic algorithms for process mining}, booktitle = {Matematikát, fizikát és informatikát oktatók XXXV. konferenciája - MAFIOK 2011}, year = {2011}, pages = {1-10 (on DVD)} } |
Werner-Stark A, Gerzson M and Hangos K (2011), "Discrete event model structure identification using process mining", In Proceedings of the IASTED International Conference Modelling, Identification, and Control (MIC 2011). Innsbruck, Austria, February 14 - 16, 2011. , pp. 228-233. IASTED. |
BibTeX:
@inproceedings{Werner-Stark2011, author = {Werner-Stark, A. and Gerzson, M. and Hangos, K.M.}, title = {Discrete event model structure identification using process mining}, booktitle = {Proceedings of the IASTED International Conference Modelling, Identification, and Control (MIC 2011)}, publisher = {IASTED}, year = {2011}, pages = {228-233}, doi = {10.2316/P.2011.718-069} } |
Werner-Stark Á, Gerzson M and Hangos K (2011), "Model-Based Fault Detection and Isolation using Process Mining", World Academy of Science, Engineering and Technology. Vol. year 7 issue 73, pp. 851-856. |
BibTeX:
@article{Werner-Stark2011a, author = {Á. Werner-Stark and M. Gerzson and K.M. Hangos}, title = {Model-Based Fault Detection and Isolation using Process Mining}, journal = {World Academy of Science, Engineering and Technology}, year = {2011}, volume = {year 7 issue 73}, pages = {851-856} } |
Werner-Stark Á, Németh E and Hangos KM (2011), "Knowledge-based diagnosis of process systems using procedure HAZID information", In Knowledge-Based and Intelligent Information and Engineering Systems - 15th International Conference, KES 2011, Kaiserslautern, Germany, September 12-14, 2011, Proceedings, Part III. Lecture Notes in Computer Science 6883 Springer. , pp. 385-394. |
BibTeX:
@conference{Werner-Stark2011b, author = {Á. Werner-Stark and E. Németh and K. M. Hangos}, title = {Knowledge-based diagnosis of process systems using procedure HAZID information}, booktitle = {Knowledge-Based and Intelligent Information and Engineering Systems - 15th International Conference, KES 2011, Kaiserslautern, Germany, September 12-14, 2011, Proceedings, Part III. Lecture Notes in Computer Science 6883 Springer}, year = {2011}, pages = {385-394} } |
Weyer E and Hangos KM (1998), "Grey box fault detection in heat exchanger networks", (Safeprocess'97): Fault Detection, Supervision And Safety For Technical Processes 1997, Vols 1-3., In (Safeprocess'97): Fault Detection, Supervision And Safety For Technical Processes 1997, Vols 1-3. , pp. 191-196. |
Abstract: A grey box model-based method for fault diagnosis is proposed in this paper which is based on a first principle model of the process unit: a heat exchanger, and on a grey box model of the fault: the deterioration of the heat transfer surface by aging. Under normal operating conditions the heat transfer coefficient is constant or slowly decreasing due to a layer of settled material building up on the heat transfer surface, and we propose to use a recursive least squares estimator with forgetting factor to trade the heat transfer coefficients during these stages. In old heat exchangers, big chunks of the settled material can break away from the surface causing the heat transfer coefficients to rise sharply. This fault is detected via detection of abrupt positive jump in the estimated heat transfer coefficients using a Hinkley detector. Copyright (C) 1998 IFAC. |
BibTeX:
@conference{Weyer1998, author = {Weyer, E. and Hangos, K. M.}, title = {Grey box fault detection in heat exchanger networks}, booktitle = {(Safeprocess'97): Fault Detection, Supervision And Safety For Technical Processes 1997, Vols 1-3}, journal = {(Safeprocess'97): Fault Detection, Supervision And Safety For Technical Processes 1997, Vols 1-3}, year = {1998}, pages = {191--196} } |
Weyer E, Szederkényi G and Hangos K (2000), "Grey Box Fault Detection of Heat Exchangers", Control Engineering Practice. Vol. 8, pp. 121-131. |
Abstract: A grey-box model-based method for fault diagnosis is proposed in this paper. The method is based on a first principle model of the process unit, i.e. a heat exchanger, and on a grey-box model of the fault, i.e. the deterioration of the heat transfer surface by aging. During normal operating conditions the heat transfer coefficient is constant or slowly decreasing due to material settling on the heat transfer surface. In old heat exchangers big pieces of settled material can break off causing damage. When this happens, the heat transfer coefficients will rise sharply. In the proposed method a recursive least-squares estimator with forgetting factor is used to track the heat transfer coefficients. The settled material breakage fault is detected via detection of abrupt positive jump in the estimated heat transfer coefficients using a cumulative sum (CUSUM) test. The capability to detect faults in any industrial equipment is heavily dependent on the availability of suitable measurements. For heat exchangers the variables related to the in- and outflows of the equipment (flowrates and temperatures) are usually measured, but measurements along the equipment length are rarely available. Therefore, the possibilities of fault location in space are rather limited. However, simplified models can be used for fault detection in this case. Moreover, a fault detection method is proposed with the possibility of spatial fault location when measurements along the cold side are available. The proposed method is illustrated on simulated examples with different measurement situations. |
BibTeX:
@article{Weyer2000, author = {E. Weyer and G. Szederkényi and K.M. Hangos}, title = {Grey Box Fault Detection of Heat Exchangers}, journal = {Control Engineering Practice}, year = {2000}, volume = {8}, pages = {121--131}, doi = {10.1016/S0967-0661(99)00132-X} } |
(2009), "Proceedings of the 28th IASTED International Conference on Modelling, Identification and Control, February 16-18, Innsbruck, Austria" Acta Press.
[BibTeX] |
BibTeX:
@proceedings{Hangos2009MIC,, editor = {K. M. Hangos}, title = {Proceedings of the 28th IASTED International Conference on Modelling, Identification and Control, February 16-18, Innsbruck, Austria}, publisher = {Acta Press}, year = {2009}, note = {ISBN: 978-0-88986-782-6} } |
(2009), "Proceedings of the Workshop on Systems and Control Theory in honor of József Bokor on his 60th birthday" BME AVVC, MTA-SZTAKI.
[BibTeX] |
BibTeX:
@proceedings{Hangos2009WSCT,, editor = {K. M. Hangos and L. Nádai}, title = {Proceedings of the Workshop on Systems and Control Theory in honor of József Bokor on his 60th birthday}, publisher = {BME AVVC, MTA-SZTAKI}, year = {2009}, note = {ISBN: 963-279-039-8} } |