[{"place":"New York, NY, USA","year":"2021","citation":{"short":"A. Nikfarjam, J. Bossek, A. Neumann, F. Neumann, in: Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms, Association for Computing Machinery, New York, NY, USA, 2021, pp. 1–11.","mla":"Nikfarjam, Adel, et al. “Computing Diverse Sets of High Quality TSP Tours by EAX-Based Evolutionary Diversity Optimisation.” <i>Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms</i>, Association for Computing Machinery, 2021, pp. 1–11.","bibtex":"@inbook{Nikfarjam_Bossek_Neumann_Neumann_2021, place={New York, NY, USA}, title={Computing Diverse Sets of High Quality TSP Tours by EAX-based Evolutionary Diversity Optimisation}, booktitle={Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms}, publisher={Association for Computing Machinery}, author={Nikfarjam, Adel and Bossek, Jakob and Neumann, Aneta and Neumann, Frank}, year={2021}, pages={1–11} }","apa":"Nikfarjam, A., Bossek, J., Neumann, A., &#38; Neumann, F. (2021). Computing Diverse Sets of High Quality TSP Tours by EAX-based Evolutionary Diversity Optimisation. In <i>Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms</i> (pp. 1–11). Association for Computing Machinery.","ama":"Nikfarjam A, Bossek J, Neumann A, Neumann F. Computing Diverse Sets of High Quality TSP Tours by EAX-based Evolutionary Diversity Optimisation. In: <i>Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms</i>. Association for Computing Machinery; 2021:1–11.","ieee":"A. Nikfarjam, J. Bossek, A. Neumann, and F. Neumann, “Computing Diverse Sets of High Quality TSP Tours by EAX-based Evolutionary Diversity Optimisation,” in <i>Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms</i>, New York, NY, USA: Association for Computing Machinery, 2021, pp. 1–11.","chicago":"Nikfarjam, Adel, Jakob Bossek, Aneta Neumann, and Frank Neumann. “Computing Diverse Sets of High Quality TSP Tours by EAX-Based Evolutionary Diversity Optimisation.” In <i>Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms</i>, 1–11. New York, NY, USA: Association for Computing Machinery, 2021."},"page":"1–11","publication_identifier":{"isbn":["978-1-4503-8352-3"]},"title":"Computing Diverse Sets of High Quality TSP Tours by EAX-based Evolutionary Diversity Optimisation","publisher":"Association for Computing Machinery","date_updated":"2023-12-13T10:49:59Z","author":[{"first_name":"Adel","full_name":"Nikfarjam, Adel","last_name":"Nikfarjam"},{"last_name":"Bossek","orcid":"0000-0002-4121-4668","id":"102979","full_name":"Bossek, Jakob","first_name":"Jakob"},{"last_name":"Neumann","full_name":"Neumann, Aneta","first_name":"Aneta"},{"first_name":"Frank","full_name":"Neumann, Frank","last_name":"Neumann"}],"date_created":"2023-11-14T15:59:00Z","abstract":[{"lang":"eng","text":"Evolutionary algorithms based on edge assembly crossover (EAX) constitute some of the best performing incomplete solvers for the well-known traveling salesperson problem (TSP). Often, it is desirable to compute not just a single solution for a given problem, but a diverse set of high quality solutions from which a decision maker can choose one for implementation. Currently, there are only a few approaches for computing a diverse solution set for the TSP. Furthermore, almost all of them assume that the optimal solution is known. In this paper, we introduce evolutionary diversity optimisation (EDO) approaches for the TSP that find a diverse set of tours when the optimal tour is known or unknown. We show how to adopt EAX to not only find a high-quality solution but also to maximise the diversity of the population. The resulting EAX-based EDO approach, termed EAX-EDO is capable of obtaining diverse high-quality tours when the optimal solution for the TSP is known or unknown. A comparison to existing approaches shows that they are clearly outperformed by EAX-EDO."}],"status":"public","type":"book_chapter","publication":"Proceedings of the 16th ACM}/SIGEVO Conference on Foundations of Genetic Algorithms","keyword":["edge assembly crossover (EAX)","evolutionary algorithms","evolutionary diversity optimisation (EDO)","traveling salesperson problem (TSP)"],"language":[{"iso":"eng"}],"extern":"1","_id":"48892","user_id":"102979","department":[{"_id":"819"}]},{"page":"926–935","intvolume":"       160","citation":{"mla":"Vowinkel, Steffen, et al. “Preceramic Core-Shell Particles for the Preparation of Hybrid Colloidal Crystal Films by Melt-Shear Organization and Conversion into Porous Ceramics.” <i>Materials &#38; Design</i>, vol. 160, 2018, pp. 926–935, doi:<a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">10.1016/j.matdes.2018.10.032</a>.","short":"S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, M. Gallei, Materials &#38; Design 160 (2018) 926–935.","bibtex":"@article{Vowinkel_Boehm_Schäfer_Gutmann_Ionescu_Gallei_2018, title={Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics}, volume={160}, DOI={<a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">10.1016/j.matdes.2018.10.032</a>}, journal={Materials &#38; Design}, author={Vowinkel, Steffen and Boehm, Anna and Schäfer, Timmy and Gutmann, Torsten and Ionescu, Emanuel and Gallei, Markus}, year={2018}, pages={926–935} }","apa":"Vowinkel, S., Boehm, A., Schäfer, T., Gutmann, T., Ionescu, E., &#38; Gallei, M. (2018). Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics. <i>Materials &#38; Design</i>, <i>160</i>, 926–935. <a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">https://doi.org/10.1016/j.matdes.2018.10.032</a>","chicago":"Vowinkel, Steffen, Anna Boehm, Timmy Schäfer, Torsten Gutmann, Emanuel Ionescu, and Markus Gallei. “Preceramic Core-Shell Particles for the Preparation of Hybrid Colloidal Crystal Films by Melt-Shear Organization and Conversion into Porous Ceramics.” <i>Materials &#38; Design</i> 160 (2018): 926–935. <a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">https://doi.org/10.1016/j.matdes.2018.10.032</a>.","ieee":"S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, and M. Gallei, “Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics,” <i>Materials &#38; Design</i>, vol. 160, pp. 926–935, 2018, doi: <a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">10.1016/j.matdes.2018.10.032</a>.","ama":"Vowinkel S, Boehm A, Schäfer T, Gutmann T, Ionescu E, Gallei M. Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics. <i>Materials &#38; Design</i>. 2018;160:926–935. doi:<a href=\"https://doi.org/10.1016/j.matdes.2018.10.032\">10.1016/j.matdes.2018.10.032</a>"},"year":"2018","volume":160,"author":[{"first_name":"Steffen","last_name":"Vowinkel","full_name":"Vowinkel, Steffen"},{"first_name":"Anna","last_name":"Boehm","full_name":"Boehm, Anna"},{"first_name":"Timmy","last_name":"Schäfer","full_name":"Schäfer, Timmy"},{"first_name":"Torsten","id":"118165","full_name":"Gutmann, Torsten","last_name":"Gutmann"},{"first_name":"Emanuel","full_name":"Ionescu, Emanuel","last_name":"Ionescu"},{"full_name":"Gallei, Markus","last_name":"Gallei","first_name":"Markus"}],"date_created":"2026-02-07T16:15:42Z","date_updated":"2026-02-17T16:12:52Z","doi":"10.1016/j.matdes.2018.10.032","title":"Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics","publication":"Materials & Design","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"In this work, the preparation of porous hybrid particle-based films by core-shell particle design and convenient film preparation is reported. Monodisperse core particles consisting of poly(methyl methacrylate‑co‑allyl methacrylate) (P(MMA‑co‑ALMA)) were synthesized by starved-feed emulsion polymerization followed by the introduction of an initiator-containing monomer (inimer) for subsequent atom transfer radical polymerization (ATRP). The inimer shell allowed for the introduction of allylhydrido polycarbosilane (SMP-10) under ATRP conditions by grafting to the core particles. The functionalization of the prepared core-shell particles was investigated by IR spectroscopy (FTIR), scanning transmission electron microscopy (STEM) and solid-state NMR combined with dynamic nuclear polarization (DNP). The obtained hard core/soft preceramic shell particles were subjected to the melt-shear organization technique, enabling a convenient alignment into a colloidal crystal structure in one single step without the presence of a dispersion medium or solvent for the designed particles. Moreover, the hybrid particle-based films were converted into a porous ceramic structure upon thermal treatment. As a result, freestanding ceramic porous films have been obtained after degradation of the organic template core particles. Noteworthy, the conversion of the matrix material consisting of SMP-10 into the ceramic occurred with preservation of the pristine colloidal crystal template structure. Herein, the first example of core-shell particle preparation by combining different polymerization methodologies and application of the convenient melt-shear organization technique is shown, paving a new way to ceramic materials with tailored morphology and porosity."}],"user_id":"100715","_id":"64054","extern":"1","language":[{"iso":"eng"}],"keyword":["emulsion polymerization","self-assembly","ATRP","Colloidal crystal","Hybrid film","Particle processing"]},{"volume":7,"author":[{"first_name":"S.","full_name":"Vowinkel, S.","last_name":"Vowinkel"},{"full_name":"Paul, S.","last_name":"Paul","first_name":"S."},{"first_name":"Torsten","last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165"},{"last_name":"Gallei","full_name":"Gallei, M.","first_name":"M."}],"date_created":"2026-02-07T16:15:23Z","date_updated":"2026-02-17T16:12:54Z","doi":"10.3390/nano7110390","title":"Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing","issue":"11","publication_identifier":{"issn":["2079-4991"]},"page":"390","intvolume":"         7","citation":{"apa":"Vowinkel, S., Paul, S., Gutmann, T., &#38; Gallei, M. (2017). Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing. <i>Nanomaterials</i>, <i>7</i>(11), 390. <a href=\"https://doi.org/10.3390/nano7110390\">https://doi.org/10.3390/nano7110390</a>","short":"S. Vowinkel, S. Paul, T. Gutmann, M. Gallei, Nanomaterials 7 (2017) 390.","bibtex":"@article{Vowinkel_Paul_Gutmann_Gallei_2017, title={Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>}, number={11}, journal={Nanomaterials}, author={Vowinkel, S. and Paul, S. and Gutmann, Torsten and Gallei, M.}, year={2017}, pages={390} }","mla":"Vowinkel, S., et al. “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.” <i>Nanomaterials</i>, vol. 7, no. 11, 2017, p. 390, doi:<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>.","chicago":"Vowinkel, S., S. Paul, Torsten Gutmann, and M. Gallei. “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.” <i>Nanomaterials</i> 7, no. 11 (2017): 390. <a href=\"https://doi.org/10.3390/nano7110390\">https://doi.org/10.3390/nano7110390</a>.","ieee":"S. Vowinkel, S. Paul, T. Gutmann, and M. Gallei, “Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing,” <i>Nanomaterials</i>, vol. 7, no. 11, p. 390, 2017, doi: <a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>.","ama":"Vowinkel S, Paul S, Gutmann T, Gallei M. Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing. <i>Nanomaterials</i>. 2017;7(11):390. doi:<a href=\"https://doi.org/10.3390/nano7110390\">10.3390/nano7110390</a>"},"year":"2017","user_id":"100715","_id":"64053","extern":"1","language":[{"iso":"eng"}],"keyword":["Materials Science","Science & Technology - Other Topics","solid-state nmr","spectroscopy","catalysts","colloidal crystals","colloids","cross-linking","elastomeric opal films","emulsion polymerization","gamma-methacryloxypropyltrimethoxysilane","hybrid films","melt-shear organization","nanoparticles","particle","photons","polymers","processing","self-assembly","transition"],"publication":"Nanomaterials","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"The utilization and preparation of functional hybrid films for optical sensing applications and membranes is of utmost importance. In this work, we report the convenient and scalable preparation of self-crosslinking particle-based films derived by directed self-assembly of alkoxysilane-based cross-linkers as part of a core-shell particle architecture. The synthesis of well-designed monodisperse core-shell particles by emulsion polymerization is the basic prerequisite for subsequent particle processing via the melt-shear organization technique. In more detail, the core particles consist of polystyrene (PS) or poly(methyl methacrylate) (PMMA), while the comparably soft particle shell consists of poly(ethyl acrylate) (PEA) and different alkoxysilane-based poly(methacrylate)s. For hybrid film formation and convenient self-cross-linking, different alkyl groups at the siloxane moieties were investigated in detail by solid-state Magic-Angle Spinning Nuclear Magnetic Resonance (MAS, NMR) spectroscopy revealing different crosslinking capabilities, which strongly influence the properties of the core or shell particle films with respect to transparency and iridescent reflection colors. Furthermore, solid-state NMR spectroscopy and investigation of the thermal properties by differential scanning calorimetry (DSC) measurements allow for insights into the cross-linking capabilities prior to and after synthesis, as well as after the thermally and pressure-induced processing steps. Subsequently, free-standing and self-crosslinked particle-based films featuring excellent particle order are obtained by application of the melt-shear organization technique, as shown by microscopy (TEM, SEM)."}]},{"_id":"64057","user_id":"100715","keyword":["nanoparticles","self-assembly","cellulose","core-coronas structure","thermoreversible"],"extern":"1","language":[{"iso":"eng"}],"publication":"Advanced Materials","type":"journal_article","abstract":[{"text":"Self-assembly of nanoparticles (NPs) forming unique structures has been investigated extensively over the past few years. However, many self-assembled structures by NPs are irreversible, because they are generally constructed using their suspensions. It is still challenging for NPs to reversibly self-assemble in dry state, let alone of polymeric NPs with general sizes of hundreds of nm. Herein, this study reports a new reversible self-assembly phenomenon of NPs in dry state, forming thermoreversible strip-like supermolecular structures. These novel NPs of around 150 nm are perfluorinated surface-undecenoated cellulose nanoparticles (FSU-CNPs) with a core-coronas structure. The thermoreversible self-assembled structure is formed after drying in the air at the interface between FSU-CNP films and Teflon substrates. Remarkably, the formation and dissociation of this assembled structure are accompanied by a reversible conversion of the surface hydrophobicity, film transparency, and anisotropic properties. These findings show novel feasibility of reversible self-assembly of NPs in dry state, and thereby expand our knowledge of self-assembly phenomenon.","lang":"eng"}],"status":"public","date_updated":"2026-02-17T16:12:48Z","date_created":"2026-02-07T16:16:37Z","author":[{"last_name":"Wang","full_name":"Wang, Yonggui","first_name":"Yonggui"},{"full_name":"Groszewicz, Pedro B.","last_name":"Groszewicz","first_name":"Pedro B."},{"last_name":"Rosenfeldt","full_name":"Rosenfeldt, Sabine","first_name":"Sabine"},{"first_name":"Hendrik","full_name":"Schmidt, Hendrik","last_name":"Schmidt"},{"first_name":"Cynthia A.","full_name":"Volkert, Cynthia A.","last_name":"Volkert"},{"last_name":"Vana","full_name":"Vana, Philipp","first_name":"Philipp"},{"first_name":"Torsten","last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165"},{"first_name":"Gerd","full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky"},{"full_name":"Zhang, Kai","last_name":"Zhang","first_name":"Kai"}],"title":"Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State","doi":"10.1002/adma.201702473","year":"2017","page":"1702473","citation":{"chicago":"Wang, Yonggui, Pedro B. Groszewicz, Sabine Rosenfeldt, Hendrik Schmidt, Cynthia A. Volkert, Philipp Vana, Torsten Gutmann, Gerd Buntkowsky, and Kai Zhang. “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State.” <i>Advanced Materials</i>, 2017, 1702473. <a href=\"https://doi.org/10.1002/adma.201702473\">https://doi.org/10.1002/adma.201702473</a>.","ieee":"Y. Wang <i>et al.</i>, “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State,” <i>Advanced Materials</i>, p. 1702473, 2017, doi: <a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>.","ama":"Wang Y, Groszewicz PB, Rosenfeldt S, et al. Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State. <i>Advanced Materials</i>. Published online 2017:1702473. doi:<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>","mla":"Wang, Yonggui, et al. “Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State.” <i>Advanced Materials</i>, 2017, p. 1702473, doi:<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>.","bibtex":"@article{Wang_Groszewicz_Rosenfeldt_Schmidt_Volkert_Vana_Gutmann_Buntkowsky_Zhang_2017, title={Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State}, DOI={<a href=\"https://doi.org/10.1002/adma.201702473\">10.1002/adma.201702473</a>}, journal={Advanced Materials}, author={Wang, Yonggui and Groszewicz, Pedro B. and Rosenfeldt, Sabine and Schmidt, Hendrik and Volkert, Cynthia A. and Vana, Philipp and Gutmann, Torsten and Buntkowsky, Gerd and Zhang, Kai}, year={2017}, pages={1702473} }","short":"Y. Wang, P.B. Groszewicz, S. Rosenfeldt, H. Schmidt, C.A. Volkert, P. Vana, T. Gutmann, G. Buntkowsky, K. Zhang, Advanced Materials (2017) 1702473.","apa":"Wang, Y., Groszewicz, P. B., Rosenfeldt, S., Schmidt, H., Volkert, C. A., Vana, P., Gutmann, T., Buntkowsky, G., &#38; Zhang, K. (2017). Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State. <i>Advanced Materials</i>, 1702473. <a href=\"https://doi.org/10.1002/adma.201702473\">https://doi.org/10.1002/adma.201702473</a>"}},{"author":[{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"},{"first_name":"Karl","last_name":"Popp","full_name":"Popp, Karl"},{"full_name":"Krzyzynski, Tomasz","last_name":"Krzyzynski","first_name":"Tomasz"}],"volume":25,"date_updated":"2022-01-06T07:04:05Z","doi":"10.1023/A:1012915002568","publication_identifier":{"issn":["0924-090X"]},"citation":{"ama":"Sextro W, Popp K, Krzyzynski T. Localization in Nonlinear Mistuned Systems with Cyclic Symmetry. <i>Nonlinear Dynamics</i>. 2001;25(1-3):207-220. doi:<a href=\"https://doi.org/10.1023/A:1012915002568\">10.1023/A:1012915002568</a>","ieee":"W. Sextro, K. Popp, and T. Krzyzynski, “Localization in Nonlinear Mistuned Systems with Cyclic Symmetry,” <i>Nonlinear Dynamics</i>, vol. 25, no. 1–3, pp. 207–220, 2001.","chicago":"Sextro, Walter, Karl Popp, and Tomasz Krzyzynski. “Localization in Nonlinear Mistuned Systems with Cyclic Symmetry.” <i>Nonlinear Dynamics</i> 25, no. 1–3 (2001): 207–20. <a href=\"https://doi.org/10.1023/A:1012915002568\">https://doi.org/10.1023/A:1012915002568</a>.","bibtex":"@article{Sextro_Popp_Krzyzynski_2001, title={Localization in Nonlinear Mistuned Systems with Cyclic Symmetry}, volume={25}, DOI={<a href=\"https://doi.org/10.1023/A:1012915002568\">10.1023/A:1012915002568</a>}, number={1–3}, journal={Nonlinear Dynamics}, publisher={Kluwer Academic Publishers}, author={Sextro, Walter and Popp, Karl and Krzyzynski, Tomasz}, year={2001}, pages={207–220} }","short":"W. Sextro, K. Popp, T. Krzyzynski, Nonlinear Dynamics 25 (2001) 207–220.","mla":"Sextro, Walter, et al. “Localization in Nonlinear Mistuned Systems with Cyclic Symmetry.” <i>Nonlinear Dynamics</i>, vol. 25, no. 1–3, Kluwer Academic Publishers, 2001, pp. 207–20, doi:<a href=\"https://doi.org/10.1023/A:1012915002568\">10.1023/A:1012915002568</a>.","apa":"Sextro, W., Popp, K., &#38; Krzyzynski, T. (2001). Localization in Nonlinear Mistuned Systems with Cyclic Symmetry. <i>Nonlinear Dynamics</i>, <i>25</i>(1–3), 207–220. <a href=\"https://doi.org/10.1023/A:1012915002568\">https://doi.org/10.1023/A:1012915002568</a>"},"page":"207-220","intvolume":"        25","user_id":"55222","department":[{"_id":"151"}],"_id":"8924","type":"journal_article","status":"public","date_created":"2019-04-15T10:14:18Z","publisher":"Kluwer Academic Publishers","title":"Localization in Nonlinear Mistuned Systems with Cyclic Symmetry","issue":"1-3","year":"2001","language":[{"iso":"eng"}],"keyword":["bladed disk assembly","mistuning","sensitivity","localization"],"publication":"Nonlinear Dynamics","abstract":[{"text":"In forced systems with cyclic symmetry localization can occur due toparameter uncertainties. Often, Monte-Carlo simulations are used to findregions, where the system response is sensitive to parameteruncertainties. These simulations require a large computation time.Therefore, an approximate method to calculate the envelopes of thefrequency response functions is developed in this paper. An example of anonlinear system with cyclic symmetry is a bladed disk assembly withfriction dampers. Friction dampers can be installed underneath the bladeplatforms of turbine blades. Due to dry friction and the relative motionbetween blades and dampers, energy is dissipated, which results in areduction of blade vibration amplitudes. By optimizing the mass of thefriction dampers, the best damping effects are obtained, which lead toan increase in the reliability of the turbine. In this paper, thecalculated response of a mistuned bladed disk assembly with frictiondampers is discussed. An approximate method is developed to calculatethe envelopes of the corresponding frequency response function forstatistically varying eigenfrequencies of the blades. Regions wherelocalization can occur with a high probability, are calculated by thismethod.","lang":"eng"}]},{"title":"Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing","doi":"10.1109/VL.1996.545302","date_updated":"2023-01-24T11:59:01Z","date_created":"2023-01-24T11:58:56Z","author":[{"first_name":"Christian","full_name":"Geiger, Christian","last_name":"Geiger"},{"full_name":"Hunstock, R.","last_name":"Hunstock","first_name":"R."},{"last_name":"Lehrenfeld","full_name":"Lehrenfeld, Georg","first_name":"Georg"},{"first_name":"Wolfgang","full_name":"Müller, Wolfgang","id":"16243","last_name":"Müller"},{"first_name":"J. ","last_name":"Quintanilla","full_name":"Quintanilla, J. "},{"first_name":"C. ","last_name":"Tahedl","full_name":"Tahedl, C. "},{"full_name":"Weber, A.","last_name":"Weber","first_name":"A."}],"year":"1996","place":"Boulder, CO, USA","citation":{"ama":"Geiger C, Hunstock R, Lehrenfeld G, et al. Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing. In: <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>. ; 1996. doi:<a href=\"https://doi.org/10.1109/VL.1996.545302\">10.1109/VL.1996.545302</a>","ieee":"C. Geiger <i>et al.</i>, “Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing,” 1996, doi: <a href=\"https://doi.org/10.1109/VL.1996.545302\">10.1109/VL.1996.545302</a>.","chicago":"Geiger, Christian, R. Hunstock, Georg Lehrenfeld, Wolfgang Müller, J.  Quintanilla, C.  Tahedl, and A. Weber. “Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing.” In <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>. Boulder, CO, USA, 1996. <a href=\"https://doi.org/10.1109/VL.1996.545302\">https://doi.org/10.1109/VL.1996.545302</a>.","mla":"Geiger, Christian, et al. “Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing.” <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>, 1996, doi:<a href=\"https://doi.org/10.1109/VL.1996.545302\">10.1109/VL.1996.545302</a>.","short":"C. Geiger, R. Hunstock, G. Lehrenfeld, W. Müller, J. Quintanilla, C. Tahedl, A. Weber, in: Proceedings of the 1996 IEEE Symposium on Visual Languages, Boulder, CO, USA, 1996.","bibtex":"@inproceedings{Geiger_Hunstock_Lehrenfeld_Müller_Quintanilla_Tahedl_Weber_1996, place={Boulder, CO, USA}, title={Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing}, DOI={<a href=\"https://doi.org/10.1109/VL.1996.545302\">10.1109/VL.1996.545302</a>}, booktitle={Proceedings of the 1996 IEEE Symposium on Visual Languages}, author={Geiger, Christian and Hunstock, R. and Lehrenfeld, Georg and Müller, Wolfgang and Quintanilla, J.  and Tahedl, C.  and Weber, A.}, year={1996} }","apa":"Geiger, C., Hunstock, R., Lehrenfeld, G., Müller, W., Quintanilla, J., Tahedl, C., &#38; Weber, A. (1996). Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing. <i>Proceedings of the 1996 IEEE Symposium on Visual Languages</i>. <a href=\"https://doi.org/10.1109/VL.1996.545302\">https://doi.org/10.1109/VL.1996.545302</a>"},"publication_identifier":{"isbn":["0-8186-7508-X"]},"keyword":["Computer integrated manufacturing","Job shop scheduling","Processor scheduling","Computer languages","Control system synthesis","Computer aided manufacturing","Sorting","Assembly","Costs","Control systems"],"language":[{"iso":"eng"}],"_id":"39526","department":[{"_id":"672"}],"user_id":"5786","abstract":[{"text":"The main goal of the article is to evaluate the suitability of visual programming languages, i.e., Pictorial Janus (K. Kahn and V. Saraswat, 1990), for the modeling of complex systems and their control strategies. These systems can be seen as networks of communicating objects. Objects select strategies for suitable actions based on incoming messages. Our field of investigation is in computer integrated manufacturing considering the example of a car manufacturing cell. This color sorting assembly buffer (CSAB) schedules jobs in queues. The jobs represent car bodies scheduled in feeder lines for the enameling. Feeder lines collect raw bodies to blocks. Blocks are bodies which are to be enameled by the same color. This organization decreases the cost of expensive change-over-times when changing colors at the enamelling. Blocks of bodies are dislocated from the queue and enameled successively. Contradictory system goals, such as minimizing color changes and preserving the sequence of incoming jobs, have to be regarded by appropriate control strategies. Due to the complexity of this (NP complete) problem and to real time requirements for online control there are no optimal strategies on hand. Consequently, suitable heuristics have to be developed. Often they are designed applying a trial-and-error method. A modeling framework has to support the rapid prototyping of these systems as well as an expressive end user oriented representation. Both are essential requirements since end users need other visualization techniques than experienced designers due to their different knowledge and interests.","lang":"eng"}],"status":"public","publication":"Proceedings of the 1996 IEEE Symposium on Visual Languages","type":"conference"}]