@misc{MuellerTorgerAllertzetal., author = {M{\"u}ller, Felix and Torger, Bernhard and Allertz, Peter J. and J{\"a}hnichen, Klaus and Keßler, Stefan and M{\"u}ller, Martin and Simon, Frank and Salchert, Katrin and M{\"a}urer, Haike and Pospiech, Doris}, title = {Multifunctional crosslinkable itaconic acid copolymers for enzyme immobilization}, series = {European Polymer Journal}, volume = {102}, journal = {European Polymer Journal}, doi = {10.1016/j.eurpolymj.2018.03.014}, pages = {47 -- 55}, abstract = {UV-Crosslinkable itaconic copolymers are developed to provide new multifunctional materials for coatings which combine crosslinkable functionalities and the possibility to immobilize enzymes. The polymer-immobilized enzymes were used for water treatment to decompose persistent organic molecules. Introduction of suitable comonomers allows tailoring the mechanical and chemical properties for special applications. Copolymers containing MMA and itaconic anhydride were chosen because of the formation of long-term stable anhydride functionalities. These anhydride functionalities are employed to attach enzymes covalently. 4-Benzoylphenyl methacrylate is used as comonomer for UV-initiated crosslinking. Terpolymers are successfully obtained by radical copolymerization in solution. The copolymers are compared to poly(ethylene-alt-maleic anhydride) [P(EMA)] often used with respect to enzyme immobilization, activity and hydrolytic stability. The hydrolysis stability of the copolymers against water is studied by ATR-FTIR spectroscopy. Thin films are prepared on glass substrates in a layer-by-layer procedure by spin-coating. The layer formation is monitored by ATR-FTIR spectroscopy. UV-crosslinking of the copolymer films is performed taking the optimal irradiation dose that avoids polymer degradation. ATR-FTIR spectroscopy verifies the coupling reaction between amino groups of the enzyme and the anhydride groups on the surface of the crosslinked polymer film. The syringaldazine (4-hydroxy-3,5-dimethoxybenzaldehyde azine) test and 2,2´-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay demonstrate that the immobilized enzymes maintain their activities. The functional copolymers showed a significant effect in reduction of persistent organic pollutants in contaminated waste water.}, language = {de} } @misc{MuellerNolteSchlaefer, author = {M{\"u}ller, Felix and Nolte, J{\"o}rg and Schlaefer, A.}, title = {CLIX - A Hybrid Programming Environment for Distributed Objects and Distributed Shared Memory}, series = {Parallel and distributed processing, 15 IPDPS 2000 workshops, Cancun, Mexico, May 1 - 5, 2000}, journal = {Parallel and distributed processing, 15 IPDPS 2000 workshops, Cancun, Mexico, May 1 - 5, 2000}, editor = {Rolim, Jose}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-67442-X}, pages = {285 -- 292}, language = {en} } @incollection{MuellerGnauckWenkeletal., author = {M{\"u}ller, Felix and Gnauck, Albrecht and Wenkel, Karl-Otto and Schubert, Hendrik and Bredemeier, Michael}, title = {Theoretical Demands for Long-Term Ecological Research and the Management of Long-Term Data Sets}, language = {en} } @misc{FongwaGnauckMuelleretal., author = {Fongwa, Ernest Anye and Gnauck, Albrecht and M{\"u}ller, Felix and Petschick, Michael}, title = {Business Development for Preserving Ecosystem Services}, language = {en} } @misc{StaronBeckmannLippmannetal., author = {Staron, Peter and Beckmann, Felix and Lippmann, Thomas and Stark, Andreas and Oehring, Michael and Pyczak, Florian and Salgado, Mario and Hort, Norbert and Eckerlebe, Horst and Kainer, Karl Ulrich and M{\"u}ller, Martin and Schreyer, Andreas}, title = {In situ studies of light metals with synchrotron radiation and neutrons}, series = {Materials Science Forum}, journal = {Materials Science Forum}, number = {690}, issn = {1662-9752}, pages = {192 -- 197}, language = {en} } @misc{GrotheMuellerMuesgens, author = {Grothe, Oliver and M{\"u}ller, Christoph and M{\"u}sgens, Felix}, title = {Modellierung von Energiepreisrisiken durch Bindefristen bei {\"o}ffentlichen Ausschreibungen}, series = {Zeitschrift f{\"u}r Energie, Markt und Wettbewerb}, journal = {Zeitschrift f{\"u}r Energie, Markt und Wettbewerb}, number = {6}, pages = {59 -- 62}, language = {de} } @incollection{KleberTerhorstHuelleetal., author = {Kleber, Arno and Terhorst, Birgit and H{\"u}lle, Daniela and Leopold, Matthias and M{\"u}ller, S. and Raab, Thomas and Sauer, Daniela and Scholten, Thomas and Dietze, Michael and Felix-Henningsen, Peter and Heinrich, J. and Spies, E. D. and Thiemeyer, H.}, title = {Subdued Mountains of Central Europe}, series = {Mid-Latitude Slope Deposits (Cover Beds)}, booktitle = {Mid-Latitude Slope Deposits (Cover Beds)}, editor = {Kleber, Arno and Terhorst, Birgit}, publisher = {Elsevier}, address = {Oxford}, isbn = {978-0-444-53118-6}, doi = {10.1016/B978-0-444-53118-6.00002-7}, pages = {9 -- 93}, abstract = {Slope deposits, which veil entire slopes or large parts of them in a rather uniform manner (cover beds), are ubiquitous in the subdued mountains of Central Europe. Here we provide an overview of the current state of knowledge on these deposits. The Central European cover beds are divided into (1) the upper layer that is ubiquitously distributed and displays a relatively constant thickness; (2) the intermediate layer the distribution of which is mainly restricted to flat relief, to slope depressions, and to lee-ward facing slopes; and (3) the basal layer, which is rather widespread again. Both the upper and intermediate layer contain intermixed loess, whereas the basal layer is free of loess and typically has a high bulk density. Aside from the loess content, the composition of the layers differs, reflecting varying portions of crushed and chemically weathered rock allocated from up-slope. This causes notable diversity depending on bedrock and, thus, induces remarkable regional differences. Cover beds were mainly formed by periglacial gelifluction. The upper layer formed in the Late Glacial possibly during several short episodes of activity. In contrast, the underlying layers may be diachronous; nevertheless, they display recurring vertical sequences. This is probably due to the fact that loess-free layers usually could not deposit as long as there was loess in the environs, which may have been inherited from older deposits. Thus, the last phase of surface wash, during which older loess was removed, determines the age of the lower layers.}, language = {en} } @misc{MuellerKleibertIbert, author = {M{\"u}ller, Felix Claus and Kleibert, Jana Maria and Ibert, Oliver}, title = {Hiding in the Spotlight: Commodifying Nature and the Geographies of Dissociation in the Fur Fashion Complex}, series = {Economic Geography}, volume = {97}, journal = {Economic Geography}, number = {1}, issn = {0013-0095}, doi = {10.1080/00130095.2020.1858713}, pages = {89 -- 112}, language = {en} } @inproceedings{FongwaPetschickGnaucketal., author = {Fongwa, Ernest Anye and Petschick, Michael and Gnauck, Albrecht and M{\"u}ller, Felix}, title = {Decision support system for balancing ecosystem services at the landscape scale: Petri nets modelling application}, series = {Proceedings Implementation of Landscape Ecological Knowledge in Practice, 1st IALE-Europe Thematic Symposium, 16-19 September 2010}, booktitle = {Proceedings Implementation of Landscape Ecological Knowledge in Practice, 1st IALE-Europe Thematic Symposium, 16-19 September 2010}, publisher = {Wydawnictwo Naukowe UAM}, address = {Poznan}, isbn = {978-83-232-2154-8}, pages = {241 -- 252}, language = {en} } @inproceedings{FongwaGnauckMueller, author = {Fongwa, Ernest Anye and Gnauck, Albrecht and M{\"u}ller, Felix}, title = {Modelling Ecosystem Services at the Landscape Scale: A Case Study of UNESCO Biosphere Reserve Spreewald}, series = {Modellierung und Simulation von {\"O}kosystemen : Workshop K{\"o}lpinsee 2010}, booktitle = {Modellierung und Simulation von {\"O}kosystemen : Workshop K{\"o}lpinsee 2010}, edition = {1. Auflage}, publisher = {Shaker}, address = {Aachen}, isbn = {978-3-8440-0499-1}, pages = {233 -- 257}, language = {en} } @inproceedings{FongwaGnauckMueller, author = {Fongwa, Ernest Anye and Gnauck, Albrecht and M{\"u}ller, Felix}, title = {A Hybrid Model for Sustainable Development of Ecosystem Services}, series = {Modellierung und Simulation von {\"O}kosystemen : Workshop K{\"o}lpinsee 2009}, booktitle = {Modellierung und Simulation von {\"O}kosystemen : Workshop K{\"o}lpinsee 2009}, edition = {1. Auflage}, publisher = {Shaker}, address = {Aachen}, isbn = {978-3-8322-9410-6}, pages = {204 -- 223}, language = {en} } @inproceedings{FongwaPetschickGnaucketal., author = {Fongwa, Ernest Anye and Petschick, Michael and Gnauck, Albrecht and M{\"u}ller, Felix}, title = {Measuring the Rate of Changes in Ecosystem Services at the Landscape Scale: Towards decision support systems for improving the ecological performance}, series = {Implementing of Landscape Ecological Knowledge in Practice, 1st IALE-EuropeThematic Symposium, 16 - 19 September 2010}, booktitle = {Implementing of Landscape Ecological Knowledge in Practice, 1st IALE-EuropeThematic Symposium, 16 - 19 September 2010}, editor = {Mizgajski, Andrzej and Macias, Andrzej}, publisher = {Wydawnictwo Naukowe UAM}, address = {Poznan}, isbn = {978-83-232-2154-8}, language = {en} } @techreport{FongwaMueller, author = {Fongwa, Ernest Anye and M{\"u}ller, Felix}, title = {A Unified Modeling System for Estimating the Value of Ecosystem Services}, language = {en} } @misc{HannanSeidlitzHartungetal., author = {Hannan, Azmin Nasrin and Seidlitz, Holger and Hartung, David and Kuke, Felix and Ambrosio, Marcello and M{\"u}ller, Marco}, title = {Sustainability and Circular Economy in Carbon Fiber-Reinforced Plastics}, series = {Materials Circular Economy}, volume = {6}, journal = {Materials Circular Economy}, number = {1}, publisher = {Springer Science and Business Media LLC}, issn = {2524-8146}, doi = {10.1007/s42824-024-00111-2}, pages = {11}, abstract = {Carbon fiber-reinforced plastic (CFRP) components are known for their exceptional resilience and ultra-lightweight nature, making them the preferred choice for applications requiring high mechanical loads with minimal weight. However, the intricate and anisotropic structure of CFRP components poses challenges, resulting in expensive repairs and testing. This complexity also leads to increased waste generation. Yet, innovative recycling processes offer a solution by reintegrating carbon components into a closed material cycle, promoting sustainability and circular economy principles. This work focuses on recycled CFs (rCFs) obtained through a continuous recycling method for CFRP primary recyclate from composite pressure vessel. Furthermore, re-purposing of the separated matrix material for secondary energy sources makes the process, a 100\% recycling route. This closed-loop approach addresses conventional pyrolysis challenges and contributes to more efficient utilization of CFRP waste components. rCF and recycled polyethylene terephthalate (rPET) polymers were compounded through an extrusion process. Test specimens were then fabricated according to standard test norms to evaluate the resulting tensile and bending properties. The tensile and flexural modulus of the rCF-rPET obtained are 6.80 and 4.99 GPa, respectively. The need for enhancing the quality of rCF is apparent. Suggestive and potential implications and the marketability of rCF-rPET compounds are also discussed.}, language = {en} }