@article{FeuerriegelStahlberg1995, author = {Feuerriegel, Uwe and Stahlberg, R.}, title = {Das Thermoselect-Verfahren zur Energie- und Rohstoffgewinnung - Konzepte, Verfahren, Kosten}, series = {Thermische Abfallentsorgung - Konzepte, Kosten, Verfahren. Tagung Veitsh{\"o}chheim, 27./28.06.1995, VDI-Gesellschaft Energietechnik}, journal = {Thermische Abfallentsorgung - Konzepte, Kosten, Verfahren. Tagung Veitsh{\"o}chheim, 27./28.06.1995, VDI-Gesellschaft Energietechnik}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {0083-5560}, pages = {319 -- 319}, year = {1995}, language = {de} } @article{FeuerriegelStahlberg1996, author = {Feuerriegel, Uwe and Stahlberg, R.}, title = {Performance of the Thermoselect Demonstration Plant at Fondotoce, Italy: Product Quality and Distribution of Chemical Elements in the Material Flow. Stahlberg, R. ; Feuerriegel, U.}, series = {Solid waste management: thermal treatment \& waste-to-energy technologies : proceedings of an international specialty conference sponsored by the Air \& Waste Management Association, [Washington, DC, April 18 - 21, 1995] / comp. by James D. Kilgroe}, journal = {Solid waste management: thermal treatment \& waste-to-energy technologies : proceedings of an international specialty conference sponsored by the Air \& Waste Management Association, [Washington, DC, April 18 - 21, 1995] / comp. by James D. Kilgroe}, publisher = {Air \& Waste Management Assoc.}, address = {Pittsburgh, Pa.}, pages = {XVI, 965 S : graph. Darst.}, year = {1996}, language = {en} } @inproceedings{FeuerriegelPookWerschetal.2012, author = {Feuerriegel, Uwe and Pook, Michael and Wersch, Gregor and Wittenhorst, Simon and Becker, J{\"u}rgen and Ecker, Markus and Hoffmann, Ulrich and Kunz, Ulrich}, title = {Simulation von W{\"a}rme{\"u}bertragungsprozessen}, year = {2012}, abstract = {Mit freundlicher Genehmigung der Autoren und des Oldenbourg Industrieverlags https://www.oldenbourg-industrieverlag.de/de/9783835633223-33223 erschienen als Beitrag im Tagungsband zur AALE-Tagung 2012. 9. Fachkonferenz 4.-5. Mai 2012, Aachen, Fachhochschule. ISBN 9783835633223 S 5-1 S. 127-135 Es werden Ergebnisse unterschiedlicher Projekte aus dem Bereich der Simulation von W{\"a}rme{\"u}bertragungsprozessen mit Excel-VBA vorgestellt. - Thermische Behandlung hochviskoser Fruchtzubereitungen, verschiedene Projekte und Kooperationen mit der Zentis GmbH \& Co. KG, Aachen (J. Becker, U. Feuerriegel, G. Wersch). - Untersuchung des dynamischen Verhaltens von dampfbeheizten Ethylen-Verdampfern. Projekt mit der TGE Gas Engineering GmbH, Bonn (M. Ecker, U. Feuerriegel, U. Hoffmann, S. Wittenhorst). - Dynamische Simulation des axialen Temperaturverlaufs von elektrisch beheizten Rohrreaktoren. Kooperation mit dem Institut f{\"u}r Chemische Verfahrenstechnik, TU Clausthal (U. Feuerriegel, U. Kunz, M. Pook, S. Wittenhorst).}, subject = {W{\"a}rme{\"u}bertragung}, language = {de} } @article{FeuerriegelMaHoffmann1990, author = {Feuerriegel, Uwe and Ma, J. and Hoffmann, U.}, title = {Untersuchungen zur Rußfilterregeneration mit Hilfe von Z{\"u}ndhilfen. Ma, J.; Hoffmann, U.; Feuerriegel, U}, series = {Erd{\"o}l und Kohle - Erdgas, Brennstoff-Chemie. 43 (1990)}, journal = {Erd{\"o}l und Kohle - Erdgas, Brennstoff-Chemie. 43 (1990)}, isbn = {0014-0058}, pages = {150 -- 157}, year = {1990}, language = {de} } @article{FeuerriegelKuenschStahlbergetal.1994, author = {Feuerriegel, Uwe and K{\"u}nsch, M. and Stahlberg, R. and Steiger, F.}, title = {Massen- und Energiebilanz des Thermoselect-Verfahrens}, series = {Thermoselect-Verfahren zur Ent- und Vergasung von Abf{\"a}llen / Franz J. Schweitzer [Hrsg.]}, journal = {Thermoselect-Verfahren zur Ent- und Vergasung von Abf{\"a}llen / Franz J. Schweitzer [Hrsg.]}, publisher = {EF-Verl. f{\"u}r Energie- u. Umwelttechnik}, address = {Berlin}, isbn = {3-924511-47-0}, pages = {207 S. : graph. Darst.}, year = {1994}, language = {de} } @article{FeuerriegelKloseSloboshaninetal.1994, author = {Feuerriegel, Uwe and Klose, W. and Sloboshanin, S. and Goebel, H. [u.a.]}, title = {Deactivation of a palladium-supported alumina catalyst by hydrogen sulfide during the oxidation of methane}, series = {Langmuir: the ACS journal of surfaces and colloids. 10 (1994), H. 10}, journal = {Langmuir: the ACS journal of surfaces and colloids. 10 (1994), H. 10}, isbn = {0743-74363}, pages = {3567 -- 3570}, year = {1994}, language = {en} } @article{FeuerriegelKlose1993, author = {Feuerriegel, Uwe and Klose, W.}, title = {Reaktionskinetik der katalytischen Methan-Oxidation und experimentelle Untersuchungen zur Desaktivierung eines Palladium-Tr{\"a}gerkatalysators durch Schwefelwasserstoff. Klose, W. ; Feuerriegel, U.}, series = {Chemie - Ingenieur - Technik. 65 (1993), H. 10}, journal = {Chemie - Ingenieur - Technik. 65 (1993), H. 10}, isbn = {0009-286X}, pages = {1242 -- 1243}, year = {1993}, language = {de} } @article{FeuerriegelKlose1998, author = {Feuerriegel, Uwe and Klose, W.}, title = {Untersuchungen zum Mechanismus der Desaktivierung eines Palladium-Tr{\"a}gerkatalysators durch Vergiftung mit Schwefelwasserstoff}, series = {Chemie - Ingenieur - Technik. 70 (1998), H. 4}, journal = {Chemie - Ingenieur - Technik. 70 (1998), H. 4}, isbn = {0009-286X}, pages = {449 -- 452}, year = {1998}, language = {de} } @article{FeuerriegelKlose1998, author = {Feuerriegel, Uwe and Klose, W.}, title = {Investigations into the Mechanism of the Deactivation of a Palladium-Supported Catalyst by Hydrogen Sulfide Poisoning. Klose, W. ; Feuerriegel, U.}, series = {Chemical engineering \& technology. 21 (1998), H. 7}, journal = {Chemical engineering \& technology. 21 (1998), H. 7}, isbn = {0930-7516}, pages = {562 -- 564}, year = {1998}, language = {en} } @article{FeuerriegelHoffmannWalenziketal.2001, author = {Feuerriegel, Uwe and Hoffmann, Ulrich and Walenzik, C. and K{\"o}gel, J.}, title = {F{\"u}r Scale-up´s und Betriebsmuster, Projekt Trocknungstechnik an der FH Aachen}, series = {CITplus : das Praxismagazin f{\"u}r Verfahrenstechnik und Apparatebau. 4 (2001)}, journal = {CITplus : das Praxismagazin f{\"u}r Verfahrenstechnik und Apparatebau. 4 (2001)}, isbn = {1436-2597}, pages = {24 -- 25}, year = {2001}, language = {de} } @article{Feuerriegel2001, author = {Feuerriegel, Uwe}, title = {Trennen und Trocknen. FH Aachen verf{\"u}gt {\"u}ber einen Zentrifugentrockner im Technikumsmaßstab}, series = {Lebensmitteltechnik. 33 (2001), H. 7-8}, journal = {Lebensmitteltechnik. 33 (2001), H. 7-8}, isbn = {0047-4290}, pages = {22 -- 23}, year = {2001}, language = {de} } @book{Feuerriegel1993, author = {Feuerriegel, Uwe}, title = {Zur Desaktivierung eines Desaktivierung eines Palladium-Tr{\"a}gerkatalysators durch Schwefel¬wasserstoff bei der katalytischen Methanoxidation}, publisher = {Univ.-Gesamthochsch.}, address = {Kassel}, pages = {128 S.: graph. Darst.}, year = {1993}, language = {de} } @article{Feuerriegel1998, author = {Feuerriegel, Uwe}, title = {Energetische Verwertung von Kunststoffabf{\"a}llen}, series = {Chemie und Technologie makromolekularer Stoffe :, 16. Kolloquium. / Fachhochschule / Fachbereich Chemieingenieurwesen. 20. November 1998 an der FH Aachen, Fachbereich Chemieingenieurwesen}, journal = {Chemie und Technologie makromolekularer Stoffe :, 16. Kolloquium. / Fachhochschule / Fachbereich Chemieingenieurwesen. 20. November 1998 an der FH Aachen, Fachbereich Chemieingenieurwesen}, publisher = {Fachhochschule Aachen}, address = {Aachen}, pages = {169 -- 189}, year = {1998}, language = {de} } @book{Feuerriegel2016, author = {Feuerriegel, Uwe}, title = {Verfahrenstechnik mit EXCEL: Verfahrenstechnische Berechnungen effektiv durchf{\"u}hren und professionell dokumentieren}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-02902-9}, doi = {10.1007/978-3-658-02903-6}, pages = {XVII, 381 Seiten}, year = {2016}, language = {de} } @article{FengSeiblerAlamietal.1999, author = {Feng, Yong-Qing and Seibler, Jost and Alami, Raouf and Eisen, Andrew and Westerman, Karen A. and Leboulch, Philippe and Fiering, Steven and Bouhassira, Eric E.}, title = {Site-specific chromosomal integration in mammalian cells: highly efficient CRE recombinase-mediated cassette exchange}, series = {Journal of Molecular Biology}, volume = {292}, journal = {Journal of Molecular Biology}, number = {4}, issn = {0022-2836}, doi = {10.1006/jmbi.1999.3113}, pages = {779 -- 785}, year = {1999}, language = {en} } @article{FalkenbergVossBottetal.2023, author = {Falkenberg, Fabian and Voß, Leonie and Bott, Michael and Bongaerts, Johannes and Siegert, Petra}, title = {New robust subtilisins from halotolerant and halophilic Bacillaceae}, series = {Applied Microbiology and Biotechnology}, volume = {107}, journal = {Applied Microbiology and Biotechnology}, publisher = {Springer Nature}, address = {Berlin}, issn = {1432-0614}, doi = {10.1007/s00253-023-12553-w}, pages = {3939 -- 3954}, year = {2023}, abstract = {The aim of the present study was the characterisation of three true subtilisins and one phylogenetically intermediate subtilisin from halotolerant and halophilic microorganisms. Considering the currently growing enzyme market for efficient and novel biocatalysts, data mining is a promising source for novel, as yet uncharacterised enzymes, especially from halophilic or halotolerant Bacillaceae, which offer great potential to meet industrial needs. Both halophilic bacteria Pontibacillus marinus DSM 16465ᵀ and Alkalibacillus haloalkaliphilus DSM 5271ᵀ and both halotolerant bacteria Metabacillus indicus DSM 16189 and Litchfieldia alkalitelluris DSM 16976ᵀ served as a source for the four new subtilisins SPPM, SPAH, SPMI and SPLA. The protease genes were cloned and expressed in Bacillus subtilis DB104. Purification to apparent homogeneity was achieved by ethanol precipitation, desalting and ion-exchange chromatography. Enzyme activity could be observed between pH 5.0-12.0 with an optimum for SPPM, SPMI and SPLA around pH 9.0 and for SPAH at pH 10.0. The optimal temperature for SPMI and SPLA was 70 °C and for SPPM and SPAH 55 °C and 50 °C, respectively. All proteases showed high stability towards 5\% (w/v) SDS and were active even at NaCl concentrations of 5 M. The four proteases demonstrate potential for future biotechnological applications.}, language = {en} } @article{FalkenbergRahbaFischeretal.2022, author = {Falkenberg, Fabian and Rahba, Jade and Fischer, David and Bott, Michael and Bongaerts, Johannes and Siegert, Petra}, title = {Biochemical characterization of a novel oxidatively stable, halotolerant, and high-alkaline subtilisin from Alkalihalobacillus okhensis Kh10-101T}, series = {FEBS Open Bio}, volume = {12}, journal = {FEBS Open Bio}, number = {10}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {2211-5463}, doi = {10.1002/2211-5463.13457}, pages = {1729 -- 1746}, year = {2022}, abstract = {Halophilic and halotolerant microorganisms represent a promising source of salt-tolerant enzymes suitable for various biotechnological applications where high salt concentrations would otherwise limit enzymatic activity. Considering the current growing enzyme market and the need for more efficient and new biocatalysts, the present study aimed at the characterization of a high-alkaline subtilisin from Alkalihalobacillus okhensis Kh10-101T. The protease gene was cloned and expressed in Bacillus subtilis DB104. The recombinant protease SPAO with 269 amino acids belongs to the subfamily of high-alkaline subtilisins. The biochemical characteristics of purified SPAO were analyzed in comparison with subtilisin Carlsberg, Savinase, and BPN'. SPAO, a monomer with a molecular mass of 27.1 kDa, was active over a wide range of pH 6.0-12.0 and temperature 20-80 °C, optimally at pH 9.0-9.5 and 55 °C. The protease is highly oxidatively stable to hydrogen peroxide and retained 58\% of residual activity when incubated at 10 °C with 5\% (v/v) H2O2 for 1 h while stimulated at 1\% (v/v) H2O2. Furthermore, SPAO was very stable and active at NaCl concentrations up to 5.0 m. This study demonstrates the potential of SPAO for biotechnological applications in the future.}, language = {en} } @article{FalkenbergKohnBottetal.2023, author = {Falkenberg, Fabian and Kohn, Sophie and Bott, Michael and Bongaerts, Johannes and Siegert, Petra}, title = {Biochemical characterisation of a novel broad pH spectrum subtilisin from Fictibacillus arsenicus DSM 15822ᵀ}, series = {FEBS Open Bio}, volume = {13}, journal = {FEBS Open Bio}, number = {11}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {2211-5463}, doi = {10.1002/2211-5463.13701}, pages = {2035 -- 2046}, year = {2023}, abstract = {Subtilisins from microbial sources, especially from the Bacillaceae family, are of particular interest for biotechnological applications and serve the currently growing enzyme market as efficient and novel biocatalysts. Biotechnological applications include use in detergents, cosmetics, leather processing, wastewater treatment and pharmaceuticals. To identify a possible candidate for the enzyme market, here we cloned the gene of the subtilisin SPFA from Fictibacillus arsenicus DSM 15822ᵀ (obtained through a data mining-based search) and expressed it in Bacillus subtilis DB104. After production and purification, the protease showed a molecular mass of 27.57 kDa and a pI of 5.8. SPFA displayed hydrolytic activity at a temperature optimum of 80 °C and a very broad pH optimum between 8.5 and 11.5, with high activity up to pH 12.5. SPFA displayed no NaCl dependence but a high NaCl tolerance, with decreasing activity up to concentrations of 5 m NaCl. The stability enhanced with increasing NaCl concentration. Based on its substrate preference for 10 synthetic peptide 4-nitroanilide substrates with three or four amino acids and its phylogenetic classification, SPFA can be assigned to the subgroup of true subtilisins. Moreover, SPFA exhibited high tolerance to 5\% (w/v) SDS and 5\% H₂O₂ (v/v). The biochemical properties of SPFA, especially its tolerance of remarkably high pH, SDS and H₂O₂, suggest it has potential for biotechnological applications.}, language = {en} } @article{FalkenbergBottBongaertsetal.2022, author = {Falkenberg, Fabian and Bott, Michael and Bongaerts, Johannes and Siegert, Petra}, title = {Phylogenetic survey of the subtilase family and a data-mining-based search for new subtilisins from Bacillaceae}, series = {Frontiers in Microbiology}, volume = {2022}, journal = {Frontiers in Microbiology}, number = {13}, publisher = {Frontiers}, address = {Lausanne}, issn = {1664-302X}, doi = {10.3389/fmicb.2022.1017978}, pages = {Artikel 13:1017978}, year = {2022}, abstract = {The subtilase family (S8), a member of the clan SB of serine proteases are ubiquitous in all kingdoms of life and fulfil different physiological functions. Subtilases are divided in several groups and especially subtilisins are of interest as they are used in various industrial sectors. Therefore, we searched for new subtilisin sequences of the family Bacillaceae using a data mining approach. The obtained 1,400 sequences were phylogenetically classified in the context of the subtilase family. This required an updated comprehensive overview of the different groups within this family. To fill this gap, we conducted a phylogenetic survey of the S8 family with characterised holotypes derived from the MEROPS database. The analysis revealed the presence of eight previously uncharacterised groups and 13 subgroups within the S8 family. The sequences that emerged from the data mining with the set filter parameters were mainly assigned to the subtilisin subgroups of true subtilisins, high-alkaline subtilisins, and phylogenetically intermediate subtilisins and represent an excellent source for new subtilisin candidates.}, language = {en} } @article{EveraersKarimiVarzanehFlecketal.2020, author = {Everaers, Ralf and Karimi-Varzaneh, Hossein Ali and Fleck, Franz and Hojdis, Nils and Svaneborg, Carsten}, title = {Kremer-Grest Models for Commodity Polymer Melts: Linking Theory, Experiment, and Simulation at the Kuhn Scale}, series = {Macromolecules}, volume = {53}, journal = {Macromolecules}, number = {6}, publisher = {ACS Publications}, address = {Washington, DC}, issn = {1520-5835}, doi = {10.1021/acs.macromol.9b02428}, pages = {1901 -- 1916}, year = {2020}, abstract = {The Kremer-Grest (KG) polymer model is a standard model for studying generic polymer properties in molecular dynamics simulations. It owes its popularity to its simplicity and computational efficiency, rather than its ability to represent specific polymers species and conditions. Here we show that by tuning the chain stiffness it is possible to adapt the KG model to model melts of real polymers. In particular, we provide mapping relations from KG to SI units for a wide range of commodity polymers. The connection between the experimental and the KG melts is made at the Kuhn scale, i.e., at the crossover from the chemistry-specific small scale to the universal large scale behavior. We expect Kuhn scale-mapped KG models to faithfully represent universal properties dominated by the large scale conformational statistics and dynamics of flexible polymers. In particular, we observe very good agreement between entanglement moduli of our KG models and the experimental moduli of the target polymers.}, language = {en} }