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Verasztó B, Galambos I, Vatai Gy, Czermak P and Kovács Z (2013), "A membrane filtration-based concept for producing galactooligosaccharides from whey", In Book of Proceedings of Food Science Conference 2013., http://foodconf.hu/images/Conference_programme_and_abstracts.pdf. Budapest, Hungary, November, 2013. , pp. 149-152.
BibTeX:
@inproceedings{Corvinus2013Balazs,
  author = {Verasztó, B. and Galambos, I. and Vatai, Gy. and Czermak, P. and Kovács, Z.},
  editor = {Mohacsi-Farkas},
  title = {A membrane filtration-based concept for producing galactooligosaccharides from whey},
  booktitle = {Book of Proceedings of Food Science Conference 2013},
  year = {2013},
  pages = {149-152},
  note = {ISBN 978-963-503-550-2},
  url = {http://foodconf.hu/images/Conference_programme_and_abstracts.pdf}
}
Kovács Z and Czermak P (2013), "Encyclopedia of Membrane Science and Technology", In Encyclopedia of Membrane Science and Technology. John Wiley & Sons, Inc..
BibTeX:
@inbook{DiafBookChapter2013,
  author = {Kovács, Zoltán and Czermak, Peter},
  editor = {Hoek, Eric M.V. and Tarabara, Volodymyr V.},
  title = {Encyclopedia of Membrane Science and Technology},
  booktitle = {Encyclopedia of Membrane Science and Technology},
  publisher = {John Wiley & Sons, Inc.},
  year = {2013},
  note = {(in press)},
  url = {http://onlinelibrary.wiley.com/book/10.1002/9781118522318/toc},
  doi = {10.1002/9781118522318}
}
Kovács Z and Czermak P (2013), "Bioprocess technologies for the production of value added beverages", In Effiziente Verfahren und Anlagen in der Bioverfahrenstechnik und Lebensmittelbiotechnologie. Bad Wildungen, Germany, May, 2013. , pp. 14. Dechema Gesellschaft fuer Chemische Technik und Biotechnologie.
BibTeX:
@inproceedings{Himmelfahrt2013,
  author = {Kovács, Z. and Czermak, P.},
  editor = {Nina Weingaertner},
  title = {Bioprocess technologies for the production of value added beverages},
  booktitle = {Effiziente Verfahren und Anlagen in der Bioverfahrenstechnik und Lebensmittelbiotechnologie},
  publisher = {Dechema Gesellschaft fuer Chemische Technik und Biotechnologie},
  year = {2013},
  pages = {14},
  url = {www.dechema.de/bio13}
}
Paulen R, Jelemenský M, Fikar M and Kovács Z (2013), "Optimal balancing of temporal and buffer costs for ultrafiltration/diafiltration processes under limiting flux conditions", Journal of Membrane Science . Vol. 444(0), pp. 87 - 95.
BibTeX:
@article{Paulen201387,
  author = {R. Paulen and M. Jelemenský and M. Fikar and Z. Kovács},
  title = {Optimal balancing of temporal and buffer costs for ultrafiltration/diafiltration processes under limiting flux conditions},
  journal = {Journal of Membrane Science },
  year = {2013},
  volume = {444},
  number = {0},
  pages = {87 - 95},
  url = {http://www.sciencedirect.com/science/article/pii/S0376738813003967},
  doi = {10.1016/j.memsci.2013.05.009}
}
Verasztó B, Sharma A, Nguyen QD, Vatai Gy, Czermak P and Kovács Z (2013), "Membrane filtration technology for processing whey and converting whey-based lactose into galactooligosaccharides", In Conference Proceeding of the 6th Membrane Conference of Visegrad Countries. Warsaw, Poland, 15-19 September, 2013. (ISBN 978-83-7789-227-5), pp. E5. Polish Membrane Society.
BibTeX:
@inproceedings{permea2013prost01,
  author = {Verasztó, B. and Sharma, A. and Nguyen, Q.D. and Vatai, Gy. and Czermak, P. and Kovács, Z.},
  editor = {Krzysztoforski, J. and Szwast, M.},
  title = {Membrane filtration technology for processing whey and converting whey-based lactose into galactooligosaccharides},
  booktitle = {Conference Proceeding of the 6th Membrane Conference of Visegrad Countries},
  publisher = {Polish Membrane Society},
  year = {2013},
  number = {ISBN 978-83-7789-227-5},
  pages = {E5}
}
Stempin I, Kovacs Z and Czermak P (2013), "Online monitoring of biomass concentration with the biO2mass sensor technology", In Proceedings of 11. Dresdner Sensor-Symposium. Frankfurt am Main, Germany, December, 2013. , pp. 414-417.
Abstract: In situ measurement of biomass is one of the most critical analytical procedures in biotechnological processes. In our laboratory, we have developed a sensor, called biO2mass sensor (Patent No DE 10 2013 006 972.6), for measuring biomass concentration of aerobic cultures during fermentation. The principle of the measurement is based on periodically creating a small, enclosed sampling room in the fermenter in which the rate of decay in dissolved oxygen correlates with the actual biomass concentration. The applicability of the proposed technique is proven by experimental investigations on fermentation processes using various strains such as Pichia pastoris and Escherichia coli K 12. The obtained data from the biO2mass sensor shows excellent correlation with dry cell weight and optical density measurements. This simple procedure allows a rapid, sensitive, cheap, in situ measurement of the concentration of living aerobic cells.
BibTeX:
@inproceedings{stempin2013l2,
  author = {I Stempin and Z Kovacs and P Czermak},
  title = {Online monitoring of biomass concentration with the biO2mass sensor technology},
  booktitle = {Proceedings of 11. Dresdner Sensor-Symposium},
  year = {2013},
  pages = {414-417},
  note = {ISBN 978-3-9813484-5-3},
  url = {http://www.ama-science.org/home/getFile/ZGp3Aj},
  doi = {10.5162/11dss2013/L2}
}
Jelemenský M, Paulen R, Fikar M and Kovács Z (2013), "Economically Optimal Batch Ultrafiltration with Diafiltration under Limiting Flux Conditions", In Desalination using membrane technology., 7.-10.4.2013, 2013. Vol. 1(1) Elsevier.
BibTeX:
@inproceedings{uiam1376,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovács, Z.},
  title = {Economically Optimal Batch Ultrafiltration with Diafiltration under Limiting Flux Conditions},
  booktitle = {Desalination using membrane technology},
  publisher = {Elsevier},
  year = {2013},
  volume = {1},
  number = {1},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1376}
}
Jelemenský M, Paulen R, Fikar M and Kovács Z (2013), "Economically Optimal Diluant Addition for Batch Ultrafiltration/Diafiltration Processes", In Proceedings of the 19th International Conference on Process Control. Štrbské Pleso, Slovakia, June 18-21, 2013, 2013. , pp. 415-420. Slovak University of Technology in Bratislava.
BibTeX:
@inproceedings{uiam1412,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovács, Z.},
  editor = {Fikar, M., Kvasnica, M.},
  title = {Economically Optimal Diluant Addition for Batch Ultrafiltration/Diafiltration Processes},
  booktitle = {Proceedings of the 19th International Conference on Process Control},
  publisher = {Slovak University of Technology in Bratislava},
  year = {2013},
  pages = {415-420},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1412}
}
Jelemenský M, Paulen R, Fikar M and Kovács Z (2013), "Multi-objective optimal control of ultrafiltration/diafiltration processes", In Proceedings of the 12th European Control Conference. Zurich, Switzerland , pp. 3384-3389.
BibTeX:
@inproceedings{uiam1426,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovács, Z.},
  title = {Multi-objective optimal control of ultrafiltration/diafiltration processes},
  booktitle = {Proceedings of the 12th European Control Conference},
  year = {2013},
  pages = {3384-3389},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1426}
}
Jelemenský M, Paulen R, Fikar M and Kovacs Z (2013), "Economically Optimal Control of Batch Diafiltration Processes", In IEEE Multi-Conference on Systems and Control. Hyderabad, India (ISBN 978-1-4799-1557-6), pp. 734-739.
BibTeX:
@inproceedings{uiam1431,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovacs, Z.},
  title = {Economically Optimal Control of Batch Diafiltration Processes},
  booktitle = {IEEE Multi-Conference on Systems and Control},
  year = {2013},
  number = {ISBN 978-1-4799-1557-6},
  pages = {734-739},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1431}
}
Jelemenský M, Paulen R, Fikar M and Kovács Z (2013), "Economically Optimal Water Utilization in Batch Ultrafiltration/Diafiltration Processes", In Permea 2013 - Proceedings of the 6th Membrane Conference of the Visegad Countries. Warsaw, Poland (ISBN 978-83-7789-227-5), pp. 27-27. Polish Membrane Society.
BibTeX:
@inproceedings{uiam1438,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovács, Z.},
  editor = {Krzysztoforski, J. and Szwast, M.},
  title = {Economically Optimal Water Utilization in Batch Ultrafiltration/Diafiltration Processes},
  booktitle = {Permea 2013 - Proceedings of the 6th Membrane Conference of the Visegad Countries},
  publisher = {Polish Membrane Society},
  year = {2013},
  number = {ISBN 978-83-7789-227-5},
  pages = {27-27},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1438}
}
Rácz G, Kerker S, Kovács Z, Vatai G, Ebrahimi M and Czermak P (2013), "The prospectives of membrane distillation in produced water treatment", In Conference Proceeding of Conference of Chemical Engineering 2013. Veszprém, Hungary, April, 2013. (978-615-5044-79-3), pp. 119. University of Pannonia.
BibTeX:
@inproceedings{veszprem2013b,
  author = {G. Rácz and S. Kerker and Z. Kovács and Gy. Vatai and M. Ebrahimi and P. Czermak},
  editor = {Peter Mizsey},
  title = {The prospectives of membrane distillation in produced water treatment},
  booktitle = {Conference Proceeding of Conference of Chemical Engineering 2013},
  publisher = {University of Pannonia},
  year = {2013},
  number = {978-615-5044-79-3},
  pages = {119}
}
Stempin I, Kovács Z, Grace P and Czermak P (2013), "The biO2mass sensor technology", In Conference Proceeding of Conference of Chemical Engineering 2013. Veszprém, Hungary, April, 2013. (978-615-5044-79-3), pp. 52. University of Pannonia.
BibTeX:
@inproceedings{veszprem2013Igor,
  author = {Stempin, I. and Kovács, Z. and Grace, P.P. and Czermak, P.},
  editor = {Peter Mizsey},
  title = {The biO2mass sensor technology},
  booktitle = {Conference Proceeding of Conference of Chemical Engineering 2013},
  publisher = {University of Pannonia},
  year = {2013},
  number = {978-615-5044-79-3},
  pages = {52}
}
Kovács Z (2014), "Design considerations of enzyme membrane reactors", In Monograph of 3rd European Young Engineers Conference 2014. Waraw, Poland, April, 2014. (ISBN 978-83-936575-0-6), pp. 17. IST-National Research Institute.
BibTeX:
@inproceedings{eyec2014invited,
  author = {Z. Kovács},
  editor = {Michal Wojasinski},
  title = {Design considerations of enzyme membrane reactors},
  booktitle = {Monograph of 3rd European Young Engineers Conference 2014},
  publisher = {IST-National Research Institute},
  year = {2014},
  number = {ISBN 978-83-936575-0-6},
  pages = {17}
}
Kovács Z (2014), "Catalytic membrane reactors -- free and fixed enzyme systems", In Mini-symposium: Trends and developments in enzyme technology. Groningen, The Netherlands, November, 2014.
BibTeX:
@conference{FCinvited2014,
  author = {Z. Kovács},
  editor = {Ellen van Leusen},
  title = {Catalytic membrane reactors -- free and fixed enzyme systems},
  booktitle = {Mini-symposium: Trends and developments in enzyme technology},
  year = {2014}
}
Kovács Z, Benjamins E, Grau K, Ur Rehman A, Ebrahimi M and Czermak P (2014), "Recent Developments in Manufacturing Oligosaccharides with Prebiotic Functions", In Biotechnology of Food and Feed Additives. Vol. 143, pp. 257-295. Springer Berlin Heidelberg.
BibTeX:
@incollection{raey,
  author = {Kovács, Zoltán and Benjamins, Eric and Grau, Konrad and Ur Rehman, Amad and Ebrahimi, Mehrdad and Czermak, Peter},
  editor = {Zorn, Holger and Czermak, Peter},
  title = {Recent Developments in Manufacturing Oligosaccharides with Prebiotic Functions},
  booktitle = {Biotechnology of Food and Feed Additives},
  publisher = {Springer Berlin Heidelberg},
  year = {2014},
  volume = {143},
  pages = {257-295},
  url = {http://dx.doi.org/10.1007/10_2013_237},
  doi = {10.1007/10_2013_237}
}
Jelemenský M, Paulen R, Fikar M and Kovacs Z (2014), "Time-Optimal Control of Batch Multi-Component Diafiltration Processes", In 24th European Symposium on Computer Aided Process Engineering. Radarweg 29, PO Box 211, 1000 AE Amsterdam, Netherlands, 2014, 2014. Vol. 2014, pp. 553-558. Elsevier B.V.
BibTeX:
@inproceedings{uiam1497,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovacs, Z.},
  editor = {Jirí Jaromír Klemeš, Petar Sabev Varbanov, Peng Yen Liew},
  title = {Time-Optimal Control of Batch Multi-Component Diafiltration Processes},
  booktitle = {24th European Symposium on Computer Aided Process Engineering},
  publisher = {Elsevier B.V},
  year = {2014},
  volume = {2014},
  pages = {553-558},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1497}
}
Jelemenský M, Paulen R, Fikar M and Kovacs Z (2014), "Time-optimal Diafiltration in the Presence of Membrane Fouling", In Preprints of the 19th IFAC World Congress Cape Town (South Africa) August 24 - August 29, 2014. , pp. 4897-4902.
BibTeX:
@inproceedings{uiam1525,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovacs, Z.},
  title = {Time-optimal Diafiltration in the Presence of Membrane Fouling},
  booktitle = {Preprints of the 19th IFAC World Congress Cape Town (South Africa) August 24 - August 29, 2014},
  year = {2014},
  pages = {4897-4902},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1525}
}
Kovács Z (2014), "Alacsony kalória tartalmú üdítöitalok gyártástechnológiájának fejlesztése a Budapesti Corvinus Egyetemen az Európai Unió támogatásával (in Hungarian)", In ITALIPARI NAP. Budapest, Hungary, May, 2014.
BibTeX:
@conference{,
  author = {Kovács, Z},
  title = {Alacsony kalória tartalmú üdítöitalok gyártástechnológiájának fejlesztése a Budapesti Corvinus Egyetemen az Európai Unió támogatásával (in Hungarian)},
  booktitle = {ITALIPARI NAP},
  year = {2014}
}
S. Koncz F. Firtha ZK (2015), "Application of UV spectrophotometry in the quality control of galactooligosaccharides production", In Monograph of 4rd European Young Engineers Conference 2015. Waraw, Poland, April, 2015. (ISBN 978-83-936575-1-3), pp. 9. Faculty of Chemical and Process Engineering, Warsaw University of Technology.
BibTeX:
@inproceedings{eyecSara2015,
  author = {S. Koncz, F. Firtha, Z. Kovács},
  editor = {Michal Wojasinski, Bartosz Nowak},
  title = {Application of UV spectrophotometry in the quality control of galactooligosaccharides production},
  booktitle = {Monograph of 4rd European Young Engineers Conference 2015},
  publisher = {Faculty of Chemical and Process Engineering, Warsaw University of Technology},
  year = {2015},
  number = {ISBN 978-83-936575-1-3},
  pages = {9}
}
Rácz Gá, Kerker S, Schmitz O, Schnabel B, Kovács Z, Vatai G, Ebrahimi M and Czermak P (2015), "Experimental determination of liquid entry pressure (LEP) in vacuum membrane distillation for oily wastewaters", Membrane water treatment. Vol. 6(3), pp. 237-249.
BibTeX:
@article{Gabor2,
  author = {Rácz, Gábor and Kerker, Steffen and Schmitz, Oliver and Schnabel, Benjamin and Kovács, Zoltán and Vatai, Gyula and Ebrahimi, Mehrdad and Czermak, Peter},
  title = {Experimental determination of liquid entry pressure (LEP) in vacuum membrane distillation for oily wastewaters},
  journal = {Membrane water treatment},
  year = {2015},
  volume = {6},
  number = {3},
  pages = {237-249},
  url = {http://www.researchgate.net/profile/Gabor_Racz/publication/277597519_Experimental_determination_of_liquid_entry_pressure_%28LEP%29_in_vacuum_membrane_distillation_for_oily_wastewaters/links/556e157608aeab777226a10e.pdf},
  doi = {10.12989/mwt.2015.6.3.237}
}
Paulen R, Jelemenský M, Kovács Z and Fikar M (2015), "Economically optimal batch diafiltration via analytical multi-objective optimal control ", Journal of Process Control . Vol. 28(0), pp. 73 - 82.
Abstract: Abstract This paper studies the problem of economically oriented optimal operation of batch membrane diafiltration processes that are designed to concentrate the valuable components of the solution and to purge the impurities from it. We consider a complex economical objective that accounts for the total operational costs comprising a cost of consumed diluant, costs related to duration of processing, and a cost of product loss. The optimization problem is formulated as a multi-objective optimal control problem in order to investigate the impact of operational cost factors on optimal operation policy. This is achieved thanks to the use of the analytical approach that exploits Pontryagin's minimum principle. We show that the economically optimal control strategy is to carry out an operation involving saturated (bang-bang or constraint-tracking) control modes and a singular arc. For the most common cases of diafiltration problems, it turns out that the switching of the consecutive control modes can be realized in the state feedback fashion, i.e. the entire optimal operation is defined analytically in the space of process states. We demonstrate the applicability of the presented approach and we illustrate achievable benefits, over traditional control methods for the batch diafiltration processes, on two case studies taken from the literature.
BibTeX:
@article{Paulen201573,
  author = {R. Paulen and M. Jelemenský and Z. Kovács and M. Fikar},
  title = {Economically optimal batch diafiltration via analytical multi-objective optimal control },
  journal = {Journal of Process Control },
  year = {2015},
  volume = {28},
  number = {0},
  pages = {73 - 82},
  url = {http://www.sciencedirect.com/science/article/pii/S0959152415000359},
  doi = {10.1016/j.jprocont.2015.02.008}
}
Jelemenský M, Paulen R, Fikar M and Kovacs Z (2015), "Time-Optimal Operation of Multi-Component Batch Diafiltration", Computers & Chemical Engineering.
BibTeX:
@article{uiam1613,
  author = {Jelemenský, M. and Paulen, R. and Fikar, M. and Kovacs, Z.},
  title = {Time-Optimal Operation of Multi-Component Batch Diafiltration},
  journal = {Computers & Chemical Engineering},
  year = {2015},
  url = {http://www.kirp.chtf.stuba.sk/publication_info.php?id_pub=1613}
}
Verasztó B, Jelemensky M, Fikar M, Vatai Gy and Kovács Z (2015), "Recovery of proteins and lactose from demineralized whey by ultrafiltration", In Conference Proceeding of Conference of Chemical Engineering 2015. Veszprém, Hungary, April, 2015. (ISBN 978-963-396-072-1), pp. 110. University of Pannonia.
BibTeX:
@inproceedings{veszprem2015Balazs,
  author = {Verasztó, B. and Jelemensky, M. and Fikar, M. and Vatai, Gy. and Kovács, Z.},
  editor = {Peter Mizsey},
  title = {Recovery of proteins and lactose from demineralized whey by ultrafiltration},
  booktitle = {Conference Proceeding of Conference of Chemical Engineering 2015},
  publisher = {University of Pannonia},
  year = {2015},
  number = {ISBN 978-963-396-072-1},
  pages = {110}
}
Igor Stempin Zoltán Kovács DSPC (2015), "Possibilities and limits of PAT compliant measuring systems for online determination of the biomass concentration", In ACHEMA 2015 World Exhibition Congress. Frankfurt am Main, 15-19 June, 2015.
BibTeX:
@inproceedings{,
  author = {Igor Stempin, Zoltán Kovács, Denise Salzig, Peter Czermak},
  title = {Possibilities and limits of PAT compliant measuring systems for online determination of the biomass concentration},
  booktitle = {ACHEMA 2015 World Exhibition Congress},
  year = {2015},
  url = {http://dechema.de/Datei_Download-p-20014215-dateityp-ap-tagung-757-file-6678.html}
}