[{"keyword":["emulsion polymerization","self-assembly","ATRP","Colloidal crystal","Hybrid film","Particle processing"],"extern":"1","language":[{"iso":"eng"}],"_id":"64054","user_id":"100715","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."}],"status":"public","publication":"Materials & Design","type":"journal_article","title":"Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics","doi":"10.1016/j.matdes.2018.10.032","date_updated":"2026-02-17T16:12:52Z","volume":160,"author":[{"last_name":"Vowinkel","full_name":"Vowinkel, Steffen","first_name":"Steffen"},{"first_name":"Anna","full_name":"Boehm, Anna","last_name":"Boehm"},{"full_name":"Schäfer, Timmy","last_name":"Schäfer","first_name":"Timmy"},{"first_name":"Torsten","full_name":"Gutmann, Torsten","id":"118165","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","year":"2018","page":"926–935","intvolume":"       160","citation":{"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>","short":"S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, M. Gallei, Materials &#38; Design 160 (2018) 926–935.","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>.","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} }","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>","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>."}},{"title":"\"A variational formulation for fuzzy analysis in continuum mechanics\"","main_file_link":[{"open_access":"1","url":"https://msp.org/memocs/2017/5-3/memocs-v5-n3-p03-s.pdf"}],"date_updated":"2019-05-27T12:54:35Z","oa":"1","author":[{"last_name":"Mahnken","full_name":"Mahnken, Rolf","first_name":"Rolf"}],"date_created":"2019-05-20T11:36:47Z","volume":5,"year":"2017","citation":{"ieee":"R. Mahnken, “‘A variational formulation for fuzzy analysis in continuum mechanics,’” <i>Mathematics and Mechanics of complex systems</i>, vol. 5, no. 3–4, 2017.","chicago":"Mahnken, Rolf. “‘A Variational Formulation for Fuzzy Analysis in Continuum Mechanics.’” <i>Mathematics and Mechanics of Complex Systems</i> 5, no. 3–4 (2017).","ama":"Mahnken R. “A variational formulation for fuzzy analysis in continuum mechanics.” <i>Mathematics and Mechanics of complex systems</i>. 2017;5(3-4).","short":"R. Mahnken, Mathematics and Mechanics of Complex Systems 5 (2017).","bibtex":"@article{Mahnken_2017, title={“A variational formulation for fuzzy analysis in continuum mechanics”}, volume={5}, number={3–4}, journal={Mathematics and Mechanics of complex systems}, author={Mahnken, Rolf}, year={2017} }","mla":"Mahnken, Rolf. “‘A Variational Formulation for Fuzzy Analysis in Continuum Mechanics.’” <i>Mathematics and Mechanics of Complex Systems</i>, vol. 5, no. 3–4, 2017.","apa":"Mahnken, R. (2017). “A variational formulation for fuzzy analysis in continuum mechanics.” <i>Mathematics and Mechanics of Complex Systems</i>, <i>5</i>(3–4)."},"intvolume":"         5","publication_status":"published","publication_identifier":{"issn":[" 2325-3444"]},"issue":"3-4","keyword":["fuzzy analysis","α-level optimization","quantities of interest","optimization with simple constraints","large strain elasticity","large strain elastoplasticity"],"language":[{"iso":"eng"}],"_id":"9862","user_id":"78813","department":[{"_id":"154"}],"abstract":[{"text":"In order to improve the credibility of modern simulation tools, uncertainties of different kinds have to be considered. This work is focused on epistemic uncertainties in the framework of continuum mechanics, which are taken into account by fuzzy analysis. The underlying min-max optimization problem of the extension principle is approximated by α-discretization, resulting in a separation of minimum and maximum problems. To become more universal, so-called quantities of interest are employed, which allow a general formulation for the target problem of interest. In this way, the relation to parameter identification problems based on least-squares functions is highlighted. The solutions of the related optimization problems with simple constraints are obtained with a gradient-based scheme, which is derived from a sensitvity analysis for the target problem by means of a variational formulation. Two numerical examples for the fuzzy analysis of material parameters are concerned with a necking problem at large strain elastoplasticity and a perforated strip at large strain hyperelasticity to demonstrate the versatility of the proposed variational formulation. ","lang":"eng"}],"status":"public","type":"journal_article","publication":"Mathematics and Mechanics of complex systems"},{"status":"public","abstract":[{"lang":"eng","text":"State-of-the-art mechatronic systems offer inherent intelligence that enables them to autonomously adapt their behavior to current environmental conditions and to their own system state. This autonomous behavior adaptation is made possible by software in combination with complex sensor and actuator systems and by sophisticated information processing, all of which make these systems increasingly complex. This increasing complexity makes the design process a challenging task and brings new complex possibilities for operation and maintenance. However, with the risk of increased system complexity also comes the chance to adapt system behavior based on current reliability, which in turn increases reliability. The development of such an adaption strategy requires appropriate methods to evaluate reliability based on currently selected system behavior. A common approach to implement such adaptivity is to base system behavior on different working points that are obtained using multiobjective optimization. During operation, selection among these allows a changed operating strategy. To allow for multiobjective optimization, an accurate system model including system reliability is required. This model is repeatedly evaluated by the optimization algorithm. At present, modeling of system reliability and synchronization of the models of behavior and reliability is a laborious manual task and thus very error-prone. Since system behavior is crucial for system reliability, an integrated model is introduced that integrates system behavior and system reliability. The proposed approach is used to formulate reliability-related objective functions for a clutch test rig that are used to compute feasible working points using multiobjective optimization."}],"publication":"SAGE Journals","type":"journal_article","language":[{"iso":"eng"}],"keyword":["Integrated model","reliability","system behavior","Bayesian network","multiobjective optimization"],"department":[{"_id":"151"}],"user_id":"55222","_id":"9976","page":"390 - 399","citation":{"ama":"Kaul T, Meyer T, Sextro W. Formulation of reliability-related objective functions for design of intelligent mechatronic systems. <i>SAGE Journals</i>. 2017;Vol. 231(4):390-399. doi:<a href=\"https://doi.org/10.1177/1748006X17709376\">10.1177/1748006X17709376</a>","ieee":"T. Kaul, T. Meyer, and W. Sextro, “Formulation of reliability-related objective functions for design of intelligent mechatronic systems,” <i>SAGE Journals</i>, vol. Vol. 231(4), pp. 390–399, 2017.","chicago":"Kaul, Thorben, Tobias Meyer, and Walter Sextro. “Formulation of Reliability-Related Objective Functions for Design of Intelligent Mechatronic Systems.” <i>SAGE Journals</i> Vol. 231(4) (2017): 390–99. <a href=\"https://doi.org/10.1177/1748006X17709376\">https://doi.org/10.1177/1748006X17709376</a>.","mla":"Kaul, Thorben, et al. “Formulation of Reliability-Related Objective Functions for Design of Intelligent Mechatronic Systems.” <i>SAGE Journals</i>, vol. Vol. 231(4), 2017, pp. 390–99, doi:<a href=\"https://doi.org/10.1177/1748006X17709376\">10.1177/1748006X17709376</a>.","short":"T. Kaul, T. Meyer, W. Sextro, SAGE Journals Vol. 231(4) (2017) 390–399.","bibtex":"@article{Kaul_Meyer_Sextro_2017, title={Formulation of reliability-related objective functions for design of intelligent mechatronic systems}, volume={Vol. 231(4)}, DOI={<a href=\"https://doi.org/10.1177/1748006X17709376\">10.1177/1748006X17709376</a>}, journal={SAGE Journals}, author={Kaul, Thorben and Meyer, Tobias and Sextro, Walter}, year={2017}, pages={390–399} }","apa":"Kaul, T., Meyer, T., &#38; Sextro, W. (2017). Formulation of reliability-related objective functions for design of intelligent mechatronic systems. <i>SAGE Journals</i>, <i>Vol. 231(4)</i>, 390–399. <a href=\"https://doi.org/10.1177/1748006X17709376\">https://doi.org/10.1177/1748006X17709376</a>"},"year":"2017","quality_controlled":"1","doi":"10.1177/1748006X17709376","title":"Formulation of reliability-related objective functions for design of intelligent mechatronic systems","volume":"Vol. 231(4)","date_created":"2019-05-27T09:37:46Z","author":[{"id":"14802","full_name":"Kaul, Thorben","last_name":"Kaul","first_name":"Thorben"},{"full_name":"Meyer, Tobias","last_name":"Meyer","first_name":"Tobias"},{"full_name":"Sextro, Walter","id":"21220","last_name":"Sextro","first_name":"Walter"}],"date_updated":"2019-09-16T10:20:49Z"},{"abstract":[{"text":"Piezoelectric transducers are used in a wide range of applications. Reliability of these transducers is an important aspect in their application. Prognostics, which involve continuous monitoring of the health of technical systems and using this information to estimate the current health state and consequently predict the remaining useful lifetime (RUL), can be used to increase the reliability, safety, and availability of the transducers. This is achieved by utilizing the health state and RUL predictions to adaptively control the usage of the components or to schedule appropriate maintenance without interrupting operation. In this work, a prognostic approach utilizing self-sensing, where electric signals of a piezoelectric transducer are used as the condition monitoring data, is proposed. The approach involves training machine learning algorithms to model the degradation of the transducers through a health index and the use of the learned model to estimate the health index of similar transducers. The current health index is then used to estimate RUL of test components. The feasibility of the approach is demonstrated using piezoelectric bimorphs and the results show that the method is accurate in predicting the health index and RUL.","lang":"eng"}],"status":"public","type":"conference","publication":"IEEE Transactions on Reliability","keyword":["Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing"],"language":[{"iso":"eng"}],"_id":"9978","user_id":"55222","department":[{"_id":"151"}],"year":"2017","citation":{"ama":"Kimotho JK, Sextro W, Hemsel T. Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing. In: <i>IEEE Transactions on Reliability</i>. ; 2017:1-10. doi:<a href=\"https://doi.org/10.1109/TR.2017.2710260\">10.1109/TR.2017.2710260</a>","ieee":"J. K. Kimotho, W. Sextro, and T. Hemsel, “Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing,” in <i>IEEE Transactions on Reliability</i>, 2017, pp. 1–10.","chicago":"Kimotho, James Kuria, Walter Sextro, and Tobias Hemsel. “Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing.” In <i>IEEE Transactions on Reliability</i>, 1–10, 2017. <a href=\"https://doi.org/10.1109/TR.2017.2710260\">https://doi.org/10.1109/TR.2017.2710260</a>.","apa":"Kimotho, J. K., Sextro, W., &#38; Hemsel, T. (2017). Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing. In <i>IEEE Transactions on Reliability</i> (pp. 1–10). <a href=\"https://doi.org/10.1109/TR.2017.2710260\">https://doi.org/10.1109/TR.2017.2710260</a>","short":"J.K. Kimotho, W. Sextro, T. Hemsel, in: IEEE Transactions on Reliability, 2017, pp. 1–10.","mla":"Kimotho, James Kuria, et al. “Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing.” <i>IEEE Transactions on Reliability</i>, 2017, pp. 1–10, doi:<a href=\"https://doi.org/10.1109/TR.2017.2710260\">10.1109/TR.2017.2710260</a>.","bibtex":"@inproceedings{Kimotho_Sextro_Hemsel_2017, title={Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing}, DOI={<a href=\"https://doi.org/10.1109/TR.2017.2710260\">10.1109/TR.2017.2710260</a>}, booktitle={IEEE Transactions on Reliability}, author={Kimotho, James Kuria and Sextro, Walter and Hemsel, Tobias}, year={2017}, pages={1–10} }"},"page":"1 - 10","quality_controlled":"1","title":"Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing","doi":"10.1109/TR.2017.2710260","date_updated":"2019-09-16T10:32:05Z","author":[{"full_name":"Kimotho, James Kuria","last_name":"Kimotho","first_name":"James Kuria"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"},{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"}],"date_created":"2019-05-27T09:41:06Z"},{"doi":"10.1109/FPT.2017.8280144","title":"Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor","author":[{"first_name":"Nam","last_name":"Ho","full_name":"Ho, Nam"},{"first_name":"Paul","last_name":"Kaufmann","full_name":"Kaufmann, Paul"},{"full_name":"Platzner, Marco","id":"398","last_name":"Platzner","first_name":"Marco"}],"date_created":"2019-07-10T11:22:59Z","date_updated":"2022-01-06T06:50:49Z","page":"215-218","citation":{"ama":"Ho N, Kaufmann P, Platzner M. Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor. In: <i>2017 International Conference on Field Programmable Technology (ICFPT)</i>. ; 2017:215-218. doi:<a href=\"https://doi.org/10.1109/FPT.2017.8280144\">10.1109/FPT.2017.8280144</a>","ieee":"N. Ho, P. Kaufmann, and M. Platzner, “Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor,” in <i>2017 International Conference on Field Programmable Technology (ICFPT)</i>, 2017, pp. 215–218.","chicago":"Ho, Nam, Paul Kaufmann, and Marco Platzner. “Evolvable Caches: Optimization of Reconfigurable Cache Mappings for a LEON3/Linux-Based Multi-Core Processor.” In <i>2017 International Conference on Field Programmable Technology (ICFPT)</i>, 215–18, 2017. <a href=\"https://doi.org/10.1109/FPT.2017.8280144\">https://doi.org/10.1109/FPT.2017.8280144</a>.","apa":"Ho, N., Kaufmann, P., &#38; Platzner, M. (2017). Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor. In <i>2017 International Conference on Field Programmable Technology (ICFPT)</i> (pp. 215–218). <a href=\"https://doi.org/10.1109/FPT.2017.8280144\">https://doi.org/10.1109/FPT.2017.8280144</a>","short":"N. Ho, P. Kaufmann, M. Platzner, in: 2017 International Conference on Field Programmable Technology (ICFPT), 2017, pp. 215–218.","bibtex":"@inproceedings{Ho_Kaufmann_Platzner_2017, title={Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor}, DOI={<a href=\"https://doi.org/10.1109/FPT.2017.8280144\">10.1109/FPT.2017.8280144</a>}, booktitle={2017 International Conference on Field Programmable Technology (ICFPT)}, author={Ho, Nam and Kaufmann, Paul and Platzner, Marco}, year={2017}, pages={215–218} }","mla":"Ho, Nam, et al. “Evolvable Caches: Optimization of Reconfigurable Cache Mappings for a LEON3/Linux-Based Multi-Core Processor.” <i>2017 International Conference on Field Programmable Technology (ICFPT)</i>, 2017, pp. 215–18, doi:<a href=\"https://doi.org/10.1109/FPT.2017.8280144\">10.1109/FPT.2017.8280144</a>."},"year":"2017","language":[{"iso":"eng"}],"keyword":["Linux","cache storage","microprocessor chips","multiprocessing systems","LEON3-Linux based multicore processor","MiBench suite","block sizes","cache adaptation","evolvable caches","memory-to-cache-index mapping function","processor caches","reconfigurable cache mapping optimization","reconfigurable hardware technology","replacement strategies","standard Linux OS","time a complete hardware implementation","Hardware","Indexes","Linux","Measurement","Multicore processing","Optimization","Training"],"department":[{"_id":"78"}],"user_id":"398","_id":"10676","status":"public","publication":"2017 International Conference on Field Programmable Technology (ICFPT)","type":"conference"},{"author":[{"first_name":"Zakarya","last_name":"Guettatfi","full_name":"Guettatfi, Zakarya"},{"first_name":"Philipp","last_name":"Hübner","full_name":"Hübner, Philipp"},{"first_name":"Marco","last_name":"Platzner","full_name":"Platzner, Marco","id":"398"},{"last_name":"Rinner","full_name":"Rinner, Bernhard","first_name":"Bernhard"}],"date_created":"2019-07-10T12:13:15Z","date_updated":"2022-01-06T06:50:50Z","doi":"10.1109/ReCoSoC.2017.8016147","title":"Computational self-awareness as design approach for visual sensor nodes","page":"1-8","citation":{"chicago":"Guettatfi, Zakarya, Philipp Hübner, Marco Platzner, and Bernhard Rinner. “Computational Self-Awareness as Design Approach for Visual Sensor Nodes.” In <i>12th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC)</i>, 1–8, 2017. <a href=\"https://doi.org/10.1109/ReCoSoC.2017.8016147\">https://doi.org/10.1109/ReCoSoC.2017.8016147</a>.","ieee":"Z. Guettatfi, P. Hübner, M. Platzner, and B. Rinner, “Computational self-awareness as design approach for visual sensor nodes,” in <i>12th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC)</i>, 2017, pp. 1–8.","ama":"Guettatfi Z, Hübner P, Platzner M, Rinner B. Computational self-awareness as design approach for visual sensor nodes. In: <i>12th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC)</i>. ; 2017:1-8. doi:<a href=\"https://doi.org/10.1109/ReCoSoC.2017.8016147\">10.1109/ReCoSoC.2017.8016147</a>","apa":"Guettatfi, Z., Hübner, P., Platzner, M., &#38; Rinner, B. (2017). Computational self-awareness as design approach for visual sensor nodes. In <i>12th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC)</i> (pp. 1–8). <a href=\"https://doi.org/10.1109/ReCoSoC.2017.8016147\">https://doi.org/10.1109/ReCoSoC.2017.8016147</a>","short":"Z. Guettatfi, P. Hübner, M. Platzner, B. Rinner, in: 12th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC), 2017, pp. 1–8.","bibtex":"@inproceedings{Guettatfi_Hübner_Platzner_Rinner_2017, title={Computational self-awareness as design approach for visual sensor nodes}, DOI={<a href=\"https://doi.org/10.1109/ReCoSoC.2017.8016147\">10.1109/ReCoSoC.2017.8016147</a>}, booktitle={12th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC)}, author={Guettatfi, Zakarya and Hübner, Philipp and Platzner, Marco and Rinner, Bernhard}, year={2017}, pages={1–8} }","mla":"Guettatfi, Zakarya, et al. “Computational Self-Awareness as Design Approach for Visual Sensor Nodes.” <i>12th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC)</i>, 2017, pp. 1–8, doi:<a href=\"https://doi.org/10.1109/ReCoSoC.2017.8016147\">10.1109/ReCoSoC.2017.8016147</a>."},"year":"2017","department":[{"_id":"78"}],"user_id":"3118","_id":"10780","language":[{"iso":"eng"}],"keyword":["embedded systems","image sensors","power aware computing","wireless sensor networks","Zynq-based VSN node prototype","computational self-awareness","design approach","platform levels","power consumption","visual sensor networks","visual sensor nodes","Cameras","Hardware","Middleware","Multicore processing","Operating systems","Runtime","Reconfigurable platforms","distributed embedded systems","performance-resource trade-off","self-awareness","visual sensor nodes"],"publication":"12th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC)","type":"conference","status":"public"},{"language":[{"iso":"eng"}],"extern":"1","keyword":["evolutionary optimization","software-tools"],"user_id":"102979","series_title":"GECCO ’17","department":[{"_id":"819"}],"_id":"48863","status":"public","abstract":[{"text":"The novel R package ecr (version 2), short for Evolutionary Computation in R, provides a comprehensive collection of building blocks for constructing powerful evolutionary algorithms for single- and multi-objective continuous and combinatorial optimization problems. It allows to solve standard optimization tasks with few lines of code using a black-box approach. Moreover, rapid prototyping of non-standard ideas is possible via an explicit, white-box approach. This paper describes the design principles of the package and gives some introductory examples on how to use the package in practise.","lang":"eng"}],"type":"conference","publication":"Proceedings of the Genetic and Evolutionary Computation Conference Companion","doi":"10.1145/3067695.3082470","title":"Ecr 2.0: A Modular Framework for Evolutionary Computation in R","author":[{"first_name":"Jakob","full_name":"Bossek, Jakob","id":"102979","last_name":"Bossek","orcid":"0000-0002-4121-4668"}],"date_created":"2023-11-14T15:58:55Z","date_updated":"2023-12-13T10:45:05Z","publisher":"Association for Computing Machinery","citation":{"ieee":"J. Bossek, “Ecr 2.0: A Modular Framework for Evolutionary Computation in R,” in <i>Proceedings of the Genetic and Evolutionary Computation Conference Companion</i>, 2017, pp. 1187–1193, doi: <a href=\"https://doi.org/10.1145/3067695.3082470\">10.1145/3067695.3082470</a>.","chicago":"Bossek, Jakob. “Ecr 2.0: A Modular Framework for Evolutionary Computation in R.” In <i>Proceedings of the Genetic and Evolutionary Computation Conference Companion</i>, 1187–1193. GECCO ’17. New York, NY, USA: Association for Computing Machinery, 2017. <a href=\"https://doi.org/10.1145/3067695.3082470\">https://doi.org/10.1145/3067695.3082470</a>.","ama":"Bossek J. Ecr 2.0: A Modular Framework for Evolutionary Computation in R. In: <i>Proceedings of the Genetic and Evolutionary Computation Conference Companion</i>. GECCO ’17. Association for Computing Machinery; 2017:1187–1193. doi:<a href=\"https://doi.org/10.1145/3067695.3082470\">10.1145/3067695.3082470</a>","apa":"Bossek, J. (2017). Ecr 2.0: A Modular Framework for Evolutionary Computation in R. <i>Proceedings of the Genetic and Evolutionary Computation Conference Companion</i>, 1187–1193. <a href=\"https://doi.org/10.1145/3067695.3082470\">https://doi.org/10.1145/3067695.3082470</a>","bibtex":"@inproceedings{Bossek_2017, place={New York, NY, USA}, series={GECCO ’17}, title={Ecr 2.0: A Modular Framework for Evolutionary Computation in R}, DOI={<a href=\"https://doi.org/10.1145/3067695.3082470\">10.1145/3067695.3082470</a>}, booktitle={Proceedings of the Genetic and Evolutionary Computation Conference Companion}, publisher={Association for Computing Machinery}, author={Bossek, Jakob}, year={2017}, pages={1187–1193}, collection={GECCO ’17} }","short":"J. Bossek, in: Proceedings of the Genetic and Evolutionary Computation Conference Companion, Association for Computing Machinery, New York, NY, USA, 2017, pp. 1187–1193.","mla":"Bossek, Jakob. “Ecr 2.0: A Modular Framework for Evolutionary Computation in R.” <i>Proceedings of the Genetic and Evolutionary Computation Conference Companion</i>, Association for Computing Machinery, 2017, pp. 1187–1193, doi:<a href=\"https://doi.org/10.1145/3067695.3082470\">10.1145/3067695.3082470</a>."},"page":"1187–1193","place":"New York, NY, USA","year":"2017","publication_status":"published","publication_identifier":{"isbn":["978-1-4503-4939-0"]}},{"extern":"1","language":[{"iso":"eng"}],"keyword":["Convergence","Encoding","Euclidean distance","Evolutionary computation","Heating systems","Optimization","Standards"],"user_id":"102979","department":[{"_id":"819"}],"_id":"48857","status":"public","abstract":[{"lang":"eng","text":"While finding minimum-cost spanning trees (MST) in undirected graphs is solvable in polynomial time, the multi-criteria minimum spanning tree problem (mcMST) is NP-hard. Interestingly, the mcMST problem has not been in focus of evolutionary computation research for a long period of time, although, its relevance for real world problems is easy to see. The available and most notable approaches by Zhou and Gen as well as by Knowles and Corne concentrate on solution encoding and on fairly dated selection mechanisms. In this work, we revisit the mcMST and focus on the mutation operators as exploratory components of evolutionary algorithms neglected so far. We investigate optimal solution characteristics to discuss current mutation strategies, identify shortcomings of these operators, and propose a sub-tree based operator which offers what we term Pareto-beneficial behavior: ensuring convergence and diversity at the same time. The operator is empirically evaluated inside modern standard evolutionary meta-heuristics for multi-criteria optimization and compared to hitherto applied mutation operators in the context of mcMST."}],"type":"conference","publication":"2017 IEEE Symposium Series on Computational Intelligence (SSCI)","doi":"10.1109/SSCI.2017.8285183","title":"A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem","date_created":"2023-11-14T15:58:54Z","author":[{"first_name":"Jakob","orcid":"0000-0002-4121-4668","last_name":"Bossek","full_name":"Bossek, Jakob","id":"102979"},{"last_name":"Grimme","full_name":"Grimme, Christian","first_name":"Christian"}],"date_updated":"2023-12-13T10:44:28Z","citation":{"ama":"Bossek J, Grimme C. A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem. In: <i>2017 IEEE Symposium Series on Computational Intelligence (SSCI)</i>. ; 2017:1–8. doi:<a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">10.1109/SSCI.2017.8285183</a>","ieee":"J. Bossek and C. Grimme, “A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem,” in <i>2017 IEEE Symposium Series on Computational Intelligence (SSCI)</i>, 2017, pp. 1–8, doi: <a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">10.1109/SSCI.2017.8285183</a>.","chicago":"Bossek, Jakob, and Christian Grimme. “A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem.” In <i>2017 IEEE Symposium Series on Computational Intelligence (SSCI)</i>, 1–8, 2017. <a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">https://doi.org/10.1109/SSCI.2017.8285183</a>.","apa":"Bossek, J., &#38; Grimme, C. (2017). A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem. <i>2017 IEEE Symposium Series on Computational Intelligence (SSCI)</i>, 1–8. <a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">https://doi.org/10.1109/SSCI.2017.8285183</a>","bibtex":"@inproceedings{Bossek_Grimme_2017, title={A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem}, DOI={<a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">10.1109/SSCI.2017.8285183</a>}, booktitle={2017 IEEE Symposium Series on Computational Intelligence (SSCI)}, author={Bossek, Jakob and Grimme, Christian}, year={2017}, pages={1–8} }","short":"J. Bossek, C. Grimme, in: 2017 IEEE Symposium Series on Computational Intelligence (SSCI), 2017, pp. 1–8.","mla":"Bossek, Jakob, and Christian Grimme. “A Pareto-Beneficial Sub-Tree Mutation for the Multi-Criteria Minimum Spanning Tree Problem.” <i>2017 IEEE Symposium Series on Computational Intelligence (SSCI)</i>, 2017, pp. 1–8, doi:<a href=\"https://doi.org/10.1109/SSCI.2017.8285183\">10.1109/SSCI.2017.8285183</a>."},"page":"1–8","year":"2017","publication_status":"published"},{"publication":"IEEE Transactions on Emerging Topics in Computing","abstract":[{"text":"Time-variant age information of different parts of a system can be used for system-level performance improvement through high-level task scheduling, thus extending the life-time of the system. Progressive age information should provide the age state that the system is in, and the rate that it is being aged at. In this paper, we propose a structure that monitors certain paths of a circuit and detects its gradual age growth, and provides the aging rate and aging state of the circuit. The proposed monitors are placed on a selected set of nodes that represent a timing bottleneck of the system. These monitors sample expected data on these nodes, and compare them with the expected values. The timing of sampling changes as the circuit ages and its delay increases. The timing of sampling will provide a measure of aging advancement of a circuit. To assess the efficacy of the proposed method and compare it with other state-of-the-art aging monitors, we use them on selected nodes of the execution unit of different processors, as well as some circuits from ITC99 benchmarks. The results reveal that the precision of our proposed method is between 0.12 (ns) to 0.401 (ns). Its Area and power overhead are negligible and are about 2.13 and 0.69 percent respectively.","lang":"eng"}],"keyword":["Age advancement","age monitoring clock","aging rate","self-adjusting monitors"],"language":[{"iso":"eng"}],"issue":"3","year":"2017","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","date_created":"2022-01-19T13:45:51Z","title":"Self-Adjusting Monitor for Measuring Aging Rate and Advancement","type":"journal_article","status":"public","_id":"29462","user_id":"78614","department":[{"_id":"48"}],"extern":"1","publication_status":"published","publication_identifier":{"issn":["2168-6750","2376-4562"]},"citation":{"ama":"Sadeghi-Kohan S, Kamal M, Navabi Z. Self-Adjusting Monitor for Measuring Aging Rate and Advancement. <i>IEEE Transactions on Emerging Topics in Computing</i>. 2017;8(3):627-641. doi:<a href=\"https://doi.org/10.1109/tetc.2017.2771441\">10.1109/tetc.2017.2771441</a>","chicago":"Sadeghi-Kohan, Somayeh, Mehdi Kamal, and Zainalabedin Navabi. “Self-Adjusting Monitor for Measuring Aging Rate and Advancement.” <i>IEEE Transactions on Emerging Topics in Computing</i> 8, no. 3 (2017): 627–41. <a href=\"https://doi.org/10.1109/tetc.2017.2771441\">https://doi.org/10.1109/tetc.2017.2771441</a>.","ieee":"S. Sadeghi-Kohan, M. Kamal, and Z. Navabi, “Self-Adjusting Monitor for Measuring Aging Rate and Advancement,” <i>IEEE Transactions on Emerging Topics in Computing</i>, vol. 8, no. 3, pp. 627–641, 2017, doi: <a href=\"https://doi.org/10.1109/tetc.2017.2771441\">10.1109/tetc.2017.2771441</a>.","apa":"Sadeghi-Kohan, S., Kamal, M., &#38; Navabi, Z. (2017). Self-Adjusting Monitor for Measuring Aging Rate and Advancement. <i>IEEE Transactions on Emerging Topics in Computing</i>, <i>8</i>(3), 627–641. <a href=\"https://doi.org/10.1109/tetc.2017.2771441\">https://doi.org/10.1109/tetc.2017.2771441</a>","mla":"Sadeghi-Kohan, Somayeh, et al. “Self-Adjusting Monitor for Measuring Aging Rate and Advancement.” <i>IEEE Transactions on Emerging Topics in Computing</i>, vol. 8, no. 3, Institute of Electrical and Electronics Engineers (IEEE), 2017, pp. 627–41, doi:<a href=\"https://doi.org/10.1109/tetc.2017.2771441\">10.1109/tetc.2017.2771441</a>.","short":"S. Sadeghi-Kohan, M. Kamal, Z. Navabi, IEEE Transactions on Emerging Topics in Computing 8 (2017) 627–641.","bibtex":"@article{Sadeghi-Kohan_Kamal_Navabi_2017, title={Self-Adjusting Monitor for Measuring Aging Rate and Advancement}, volume={8}, DOI={<a href=\"https://doi.org/10.1109/tetc.2017.2771441\">10.1109/tetc.2017.2771441</a>}, number={3}, journal={IEEE Transactions on Emerging Topics in Computing}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Sadeghi-Kohan, Somayeh and Kamal, Mehdi and Navabi, Zainalabedin}, year={2017}, pages={627–641} }"},"intvolume":"         8","page":"627-641","date_updated":"2023-08-02T11:36:30Z","author":[{"first_name":"Somayeh","orcid":"https://orcid.org/0000-0001-7246-0610","last_name":"Sadeghi-Kohan","id":"78614","full_name":"Sadeghi-Kohan, Somayeh"},{"full_name":"Kamal, Mehdi","last_name":"Kamal","first_name":"Mehdi"},{"first_name":"Zainalabedin","full_name":"Navabi, Zainalabedin","last_name":"Navabi"}],"volume":8,"doi":"10.1109/tetc.2017.2771441"},{"user_id":"100715","_id":"64053","language":[{"iso":"eng"}],"extern":"1","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"],"type":"journal_article","publication":"Nanomaterials","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)."}],"author":[{"full_name":"Vowinkel, S.","last_name":"Vowinkel","first_name":"S."},{"first_name":"S.","last_name":"Paul","full_name":"Paul, S."},{"last_name":"Gutmann","id":"118165","full_name":"Gutmann, Torsten","first_name":"Torsten"},{"first_name":"M.","last_name":"Gallei","full_name":"Gallei, M."}],"date_created":"2026-02-07T16:15:23Z","volume":7,"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"]},"citation":{"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>","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>.","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>.","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>"},"intvolume":"         7","page":"390","year":"2017"},{"author":[{"full_name":"Wang, Yonggui","last_name":"Wang","first_name":"Yonggui"},{"first_name":"Pedro B.","full_name":"Groszewicz, Pedro B.","last_name":"Groszewicz"},{"first_name":"Sabine","last_name":"Rosenfeldt","full_name":"Rosenfeldt, Sabine"},{"last_name":"Schmidt","full_name":"Schmidt, Hendrik","first_name":"Hendrik"},{"full_name":"Volkert, Cynthia A.","last_name":"Volkert","first_name":"Cynthia A."},{"first_name":"Philipp","full_name":"Vana, Philipp","last_name":"Vana"},{"first_name":"Torsten","last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165"},{"last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd","first_name":"Gerd"},{"first_name":"Kai","full_name":"Zhang, Kai","last_name":"Zhang"}],"date_created":"2026-02-07T16:16:37Z","date_updated":"2026-02-17T16:12:48Z","doi":"10.1002/adma.201702473","title":"Thermoreversible Self-Assembly of Perfluorinated Core-Coronas Cellulose-Nanoparticles in Dry State","citation":{"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>","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>.","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>.","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>"},"page":"1702473","year":"2017","user_id":"100715","_id":"64057","extern":"1","language":[{"iso":"eng"}],"keyword":["nanoparticles","self-assembly","cellulose","core-coronas structure","thermoreversible"],"type":"journal_article","publication":"Advanced Materials","status":"public","abstract":[{"lang":"eng","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."}]},{"quality_controlled":"1","year":"2016","page":"622-628","citation":{"chicago":"Meyer , Tobias, Andreas Unger, Simon Althoff, Walter Sextro, Michael Brökelmann, Matthias Hunstig, and Karsten Guth. “Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation.” In <i>IEEE 66th Electronic Components and Technology Conference</i>, 622–28, 2016. <a href=\"https://doi.org/10.1109/ECTC.2016.215\">https://doi.org/10.1109/ECTC.2016.215</a>.","ieee":"T. Meyer  <i>et al.</i>, “Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation,” in <i>IEEE 66th Electronic Components and Technology Conference</i>, 2016, pp. 622–628.","ama":"Meyer  T, Unger A, Althoff S, et al. Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation. In: <i>IEEE 66th Electronic Components and Technology Conference</i>. ; 2016:622-628. doi:<a href=\"https://doi.org/10.1109/ECTC.2016.215\">10.1109/ECTC.2016.215</a>","apa":"Meyer , T., Unger, A., Althoff, S., Sextro, W., Brökelmann, M., Hunstig, M., &#38; Guth, K. (2016). Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation. In <i>IEEE 66th Electronic Components and Technology Conference</i> (pp. 622–628). <a href=\"https://doi.org/10.1109/ECTC.2016.215\">https://doi.org/10.1109/ECTC.2016.215</a>","mla":"Meyer , Tobias, et al. “Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation.” <i>IEEE 66th Electronic Components and Technology Conference</i>, 2016, pp. 622–28, doi:<a href=\"https://doi.org/10.1109/ECTC.2016.215\">10.1109/ECTC.2016.215</a>.","bibtex":"@inproceedings{Meyer _Unger_Althoff_Sextro_Brökelmann_Hunstig_Guth_2016, title={Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation}, DOI={<a href=\"https://doi.org/10.1109/ECTC.2016.215\">10.1109/ECTC.2016.215</a>}, booktitle={IEEE 66th Electronic Components and Technology Conference}, author={Meyer , Tobias and Unger, Andreas and Althoff, Simon and Sextro, Walter and Brökelmann, Michael and Hunstig, Matthias and Guth, Karsten}, year={2016}, pages={622–628} }","short":"T. Meyer , A. Unger, S. Althoff, W. Sextro, M. Brökelmann, M. Hunstig, K. Guth, in: IEEE 66th Electronic Components and Technology Conference, 2016, pp. 622–628."},"date_updated":"2020-05-07T05:33:53Z","date_created":"2019-05-27T09:17:26Z","author":[{"last_name":"Meyer ","full_name":"Meyer , Tobias","first_name":"Tobias"},{"last_name":"Unger","full_name":"Unger, Andreas","first_name":"Andreas"},{"full_name":"Althoff, Simon","last_name":"Althoff","first_name":"Simon"},{"last_name":"Sextro","full_name":"Sextro, Walter","id":"21220","first_name":"Walter"},{"first_name":"Michael","full_name":"Brökelmann, Michael","last_name":"Brökelmann"},{"first_name":"Matthias","last_name":"Hunstig","full_name":"Hunstig, Matthias"},{"first_name":"Karsten","full_name":"Guth, Karsten","last_name":"Guth"}],"title":"Reliable Manufacturing of Heavy Copper Wire Bonds Using Online Parameter Adaptation","doi":"10.1109/ECTC.2016.215","publication":"IEEE 66th Electronic Components and Technology Conference","type":"conference","abstract":[{"lang":"eng","text":"Usage of copper wire bonds allows to push power boundaries imposed by aluminum wire bonds. Copper allows higher electrical, thermal and mechanical loads than aluminum, which currently is the most commonly used material in heavy wire bonding. This is the main driving factor for increased usage of copper in high power applications such as wind turbines, locomotives or electric vehicles. At the same time, usage of copper also increases tool wear and reduces the range of parameter values for a stable process, making the process more challenging. To overcome these drawbacks, parameter adaptation at runtime using self-optimization is desired. A self-optimizing system is based on system objectives that evaluate and quantify system performance. System parameters can be changed at runtime such that pre-selected objective values are reached. For adaptation of bond process parameters, model-based self-optimization is employed. Since it is based on a model of the system, the bond process was modeled. In addition to static model parameters such as wire and substrate material properties and vibration characteristics of transducer and tool, variable model inputs are process parameters. Main simulation result is bonded area in the wiresubstrate contact. This model is then used to find valid and optimal working points before operation. The working point is composed of normal force and ultrasonic voltage trajectories, which are usually determined experimentally. Instead, multiobjective optimalization is used to compute trajectories that simultaneously optimize bond quality, process duration, tool wear and probability of tool-substrate contacts. The values of these objectives are computed using the process model. At runtime, selection among pre-determined optimal working points is sufficient to prioritize individual objectives. This way, the computationally expensive process of numerically solving a multiobjective optimal control problem and the demanding high speed bonding process are separated. To evaluate to what extent the pre-defined goals of self-optimization are met, an offthe- shelf heavy wire bonding machine was modified to allow for parameter adaptation and for transmitting of measurement data at runtime. This data is received by an external computer system and evaluated to select a new working point. Then, new process parameters are sent to the modified bonding machine for use for subsequent bonds. With these components, a full self-optimizing system has been implemented."}],"status":"public","_id":"9966","project":[{"_id":"92","name":"Intelligente Herstellung zuverlässiger Kupferbondverbindungen","grant_number":"02 PQ2210"}],"department":[{"_id":"151"}],"user_id":"210","keyword":["Self-optimization","adaptive system","bond process","copper wire"],"language":[{"iso":"eng"}]},{"page":"3–12","citation":{"ama":"Bossek J, Trautmann H. Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference. In: <i>Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037</i>. AI*IA 2016. Springer-Verlag; 2016:3–12. doi:<a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">10.1007/978-3-319-49130-1_1</a>","chicago":"Bossek, Jakob, and Heike Trautmann. “Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference.” In <i>Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037</i>, 3–12. AI*IA 2016. Berlin, Heidelberg: Springer-Verlag, 2016. <a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">https://doi.org/10.1007/978-3-319-49130-1_1</a>.","ieee":"J. Bossek and H. Trautmann, “Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference,” in <i>Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037</i>, 2016, pp. 3–12, doi: <a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">10.1007/978-3-319-49130-1_1</a>.","short":"J. Bossek, H. Trautmann, in: Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037, Springer-Verlag, Berlin, Heidelberg, 2016, pp. 3–12.","mla":"Bossek, Jakob, and Heike Trautmann. “Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference.” <i>Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037</i>, Springer-Verlag, 2016, pp. 3–12, doi:<a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">10.1007/978-3-319-49130-1_1</a>.","bibtex":"@inproceedings{Bossek_Trautmann_2016, place={Berlin, Heidelberg}, series={AI*IA 2016}, title={Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference}, DOI={<a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">10.1007/978-3-319-49130-1_1</a>}, booktitle={Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037}, publisher={Springer-Verlag}, author={Bossek, Jakob and Trautmann, Heike}, year={2016}, pages={3–12}, collection={AI*IA 2016} }","apa":"Bossek, J., &#38; Trautmann, H. (2016). Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference. <i>Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037</i>, 3–12. <a href=\"https://doi.org/10.1007/978-3-319-49130-1_1\">https://doi.org/10.1007/978-3-319-49130-1_1</a>"},"place":"Berlin, Heidelberg","year":"2016","publication_identifier":{"isbn":["978-3-319-49129-5"]},"publication_status":"published","doi":"10.1007/978-3-319-49130-1_1","title":"Understanding Characteristics of Evolved Instances for State-of-the-Art Inexact TSP Solvers with Maximum Performance Difference","date_created":"2023-11-14T15:58:57Z","author":[{"first_name":"Jakob","id":"102979","full_name":"Bossek, Jakob","orcid":"0000-0002-4121-4668","last_name":"Bossek"},{"first_name":"Heike","full_name":"Trautmann, Heike","last_name":"Trautmann"}],"date_updated":"2023-12-13T10:47:11Z","publisher":"Springer-Verlag","status":"public","abstract":[{"lang":"eng","text":"State of the Art inexact solvers of the NP-hard Traveling Salesperson Problem TSP are known to mostly yield high-quality solutions in reasonable computation times. With the purpose of understanding different levels of instance difficulties, instances for the current State of the Art heuristic TSP solvers LKH+restart and EAX+restart are presented which are evolved using a sophisticated evolutionary algorithm. More specifically, the performance differences of the respective solvers are maximized resulting in instances which are easier to solve for one solver and much more difficult for the other. Focusing on both optimization directions, instance features are identified which characterize both types of instances and increase the understanding of solver performance differences."}],"publication":"Proceedings of the XV International Conference of the Italian Association for Artificial Intelligence on Advances in Artificial Intelligence - Volume 10037","type":"conference","extern":"1","language":[{"iso":"eng"}],"keyword":["Combinatorial optimization","Instance hardness","Metaheuristics","Transportation","TSP"],"series_title":"AI*IA 2016","user_id":"102979","_id":"48874"},{"user_id":"16153","department":[{"_id":"27"},{"_id":"518"},{"_id":"78"}],"project":[{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"14","name":"SFB 901 - Subproject C2"},{"grant_number":"610996","name":"Self-Adaptive Virtualisation-Aware High-Performance/Low-Energy Heterogeneous System Architectures","_id":"34"}],"_id":"1772","file_date_updated":"2018-11-02T15:47:45Z","type":"journal_article","status":"public","author":[{"last_name":"Torresen","full_name":"Torresen, Jim","first_name":"Jim"},{"orcid":"0000-0001-5728-9982","last_name":"Plessl","id":"16153","full_name":"Plessl, Christian","first_name":"Christian"},{"full_name":"Yao, Xin","last_name":"Yao","first_name":"Xin"}],"volume":48,"date_updated":"2022-01-06T06:53:19Z","doi":"10.1109/MC.2015.205","has_accepted_license":"1","citation":{"apa":"Torresen, J., Plessl, C., &#38; Yao, X. (2015). Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction. <i>IEEE Computer</i>, <i>48</i>(7), 18–20. <a href=\"https://doi.org/10.1109/MC.2015.205\">https://doi.org/10.1109/MC.2015.205</a>","bibtex":"@article{Torresen_Plessl_Yao_2015, title={Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction}, volume={48}, DOI={<a href=\"https://doi.org/10.1109/MC.2015.205\">10.1109/MC.2015.205</a>}, number={7}, journal={IEEE Computer}, publisher={IEEE Computer Society}, author={Torresen, Jim and Plessl, Christian and Yao, Xin}, year={2015}, pages={18–20} }","mla":"Torresen, Jim, et al. “Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction.” <i>IEEE Computer</i>, vol. 48, no. 7, IEEE Computer Society, 2015, pp. 18–20, doi:<a href=\"https://doi.org/10.1109/MC.2015.205\">10.1109/MC.2015.205</a>.","short":"J. Torresen, C. Plessl, X. Yao, IEEE Computer 48 (2015) 18–20.","chicago":"Torresen, Jim, Christian Plessl, and Xin Yao. “Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction.” <i>IEEE Computer</i> 48, no. 7 (2015): 18–20. <a href=\"https://doi.org/10.1109/MC.2015.205\">https://doi.org/10.1109/MC.2015.205</a>.","ieee":"J. Torresen, C. Plessl, and X. Yao, “Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction,” <i>IEEE Computer</i>, vol. 48, no. 7, pp. 18–20, 2015.","ama":"Torresen J, Plessl C, Yao X. Self-Aware and Self-Expressive Systems – Guest Editor’s Introduction. <i>IEEE Computer</i>. 2015;48(7):18-20. doi:<a href=\"https://doi.org/10.1109/MC.2015.205\">10.1109/MC.2015.205</a>"},"page":"18-20","intvolume":"        48","language":[{"iso":"eng"}],"ddc":["000"],"keyword":["self-awareness","self-expression"],"publication":"IEEE Computer","file":[{"file_size":5605009,"access_level":"closed","file_name":"07163237.pdf","file_id":"5313","date_updated":"2018-11-02T15:47:45Z","date_created":"2018-11-02T15:47:45Z","creator":"ups","success":1,"relation":"main_file","content_type":"application/pdf"}],"date_created":"2018-03-23T14:06:12Z","publisher":"IEEE Computer Society","title":"Self-Aware and Self-Expressive Systems – Guest Editor's Introduction","issue":"7","year":"2015"},{"abstract":[{"lang":"eng","text":"Advancements in information technology have changed the way customers experience a service encounter and their relationship with service providers. Especially technology-based self-service channels have found their way into the 21st century service economy. While research embraces these channels for their cost-efficiency, it has not examined whether a shift from personal to self-service affects customer–firm relationships. Drawing from the service-dominant logic and its central concept of value-in-context, we discuss customers’ value creation in self-service and personal service channels and examine the long-term impact of these channels on customer retention. Using longitudinal customer data, we investigate how the ratio of self-service versus personal service use influences customer defection over time. Our findings suggest that the ratio of self-service to personal service used affects customer defection in a U-shaped manner, with intermediate levels of both self-service and personal service use being associated with the lowest likelihood of defection. We also find that this effect mitigates over time. We conclude that firms should not shift customers toward self-service channels completely, especially not at the beginning of a relationship. Our study underlines the importance of understanding when and how self-service technologies create valuable customer experiences and stresses the notion of actively managing customers’ cocreation of value. "}],"status":"public","type":"journal_article","publication":"MIS Quarterly","article_type":"original","keyword":["customer defection","customer retention","e-service","longitudinal","Self-service","value-in-context"],"language":[{"iso":"eng"}],"_id":"5704","user_id":"37741","department":[{"_id":"181"}],"year":"2015","citation":{"chicago":"Scherer, Anne, Nancy Wünderlich, and Florian Von Wangenheim. “The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention.” <i>MIS Quarterly</i> 39, no. 1 (2015): 177–200.","ieee":"A. Scherer, N. Wünderlich, and F. Von Wangenheim, “The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention.,” <i>MIS Quarterly</i>, vol. 39, no. 1, pp. 177–200, 2015.","ama":"Scherer A, Wünderlich N, Von Wangenheim F. The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention. <i>MIS Quarterly</i>. 2015;39(1):177-200.","apa":"Scherer, A., Wünderlich, N., &#38; Von Wangenheim, F. (2015). The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention. <i>MIS Quarterly</i>, <i>39</i>(1), 177–200.","short":"A. Scherer, N. Wünderlich, F. Von Wangenheim, MIS Quarterly 39 (2015) 177–200.","mla":"Scherer, Anne, et al. “The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention.” <i>MIS Quarterly</i>, vol. 39, no. 1, MIS RC, 2015, pp. 177–200.","bibtex":"@article{Scherer_Wünderlich_Von Wangenheim_2015, title={The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention.}, volume={39}, number={1}, journal={MIS Quarterly}, publisher={MIS RC}, author={Scherer, Anne and Wünderlich, Nancy and Von Wangenheim, Florian}, year={2015}, pages={177–200} }"},"page":"177-200","intvolume":"        39","publication_status":"published","publication_identifier":{"issn":["0276-7783."]},"issue":"1","title":"The Value of Self-Service: Long-Term Effects of Technology-Based Self-Service Usage on Customer Retention.","date_updated":"2022-01-06T07:02:36Z","publisher":"MIS RC","author":[{"full_name":"Scherer, Anne","last_name":"Scherer","first_name":"Anne"},{"first_name":"Nancy","last_name":"Wünderlich","full_name":"Wünderlich, Nancy","id":"36392"},{"full_name":"Von Wangenheim, Florian","last_name":"Von Wangenheim","first_name":"Florian"}],"date_created":"2018-11-15T11:36:38Z","volume":39},{"date_updated":"2022-01-06T07:01:05Z","date_created":"2018-09-18T12:56:31Z","author":[{"first_name":"Taiga","last_name":"Brahm","full_name":"Brahm, Taiga"},{"last_name":"Wagner","full_name":"Wagner, Dietrich","first_name":"Dietrich"},{"first_name":"Tobias","orcid":" https://orcid.org/0000-0001-9262-5646","last_name":"Jenert","full_name":"Jenert, Tobias","id":"71994"}],"title":"A person-centred approach to students' transition into Higher Education","conference":{"end_date":"2015-08-29","location":"Zypern","name":"16th Biennial EARLI Conference for Research on Learning and Instruction","start_date":"2015-08-25"},"year":"2015","citation":{"ama":"Brahm T, Wagner D, Jenert T. A person-centred approach to students’ transition into Higher Education. In: ; 2015.","ieee":"T. Brahm, D. Wagner, and T. Jenert, “A person-centred approach to students’ transition into Higher Education,” presented at the 16th Biennial EARLI Conference for Research on Learning and Instruction, Zypern, 2015.","chicago":"Brahm, Taiga, Dietrich Wagner, and Tobias Jenert. “A Person-Centred Approach to Students’ Transition into Higher Education,” 2015.","short":"T. Brahm, D. Wagner, T. Jenert, in: 2015.","bibtex":"@inproceedings{Brahm_Wagner_Jenert_2015, title={A person-centred approach to students’ transition into Higher Education}, author={Brahm, Taiga and Wagner, Dietrich and Jenert, Tobias}, year={2015} }","mla":"Brahm, Taiga, et al. <i>A Person-Centred Approach to Students’ Transition into Higher Education</i>. 2015.","apa":"Brahm, T., Wagner, D., &#38; Jenert, T. (2015). A person-centred approach to students’ transition into Higher Education. Presented at the 16th Biennial EARLI Conference for Research on Learning and Instruction, Zypern."},"_id":"4464","user_id":"51057","department":[{"_id":"208"},{"_id":"282"}],"keyword":["Quantitative methods","Self-efficacy","Higher education","Motivation and Emotion"],"extern":"1","type":"conference","abstract":[{"lang":"eng","text":"A highly selective first study phase in many Swiss study programs leads to a rather competitive climate among students. However, the atmosphere at the university is an important factor for students' transition into Higher Education. An important question in this context is whether students' are equipped with different dispositions influencing how they cope with this transition. Other research has already shown that different groups of students can be identified regarding their student behavior. Yet, so far little is known about patterns of variables characterizing students, transitioning successfully. The paper takes advantage of a person-centered approach, i.e. the latent-class analysis, which makes it possible to identify groups of individuals, sharing common attributes. The research was conducted as a longitudinal study during their first year at a Swiss university. The return rate was about 67%, with 820 utilizable questionnaires at t1. Based on the analysis of students' anxiety, intrinsic motivation and self-efficacy, three distinct classes of students could be identified. The first class can be called the \"highly motivated and self-confident\" students. The second class is characterized by the same pattern, however, on a more intermediate level and the last class can be described as the \"least motivated and most anxious\" group of students. This study contributes to research and theory on students' transition into higher education and could be a first hint that students' experiences of this transition can vary substantially."}],"status":"public"},{"citation":{"bibtex":"@article{Bornmann_Hemsel_Sextro_Memoli_Hodnett_Zeqiri_2015, title={Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler}, volume={82}, DOI={<a href=\"https://doi.org/10.1515/teme-2015-0017\">10.1515/teme-2015-0017</a>}, number={2}, journal={tm - Technisches Messen}, author={Bornmann, Peter and Hemsel, Tobias and Sextro, Walter and Memoli, Gianluca and Hodnett, Mark and Zeqiri, Bajram}, year={2015}, pages={73–84} }","mla":"Bornmann, Peter, et al. “Kavitationsdetektion Mittels Self-Sensing-Ultraschallwandler.” <i>Tm - Technisches Messen</i>, vol. 82, no. 2, 2015, pp. 73–84, doi:<a href=\"https://doi.org/10.1515/teme-2015-0017\">10.1515/teme-2015-0017</a>.","short":"P. Bornmann, T. Hemsel, W. Sextro, G. Memoli, M. Hodnett, B. Zeqiri, Tm - Technisches Messen 82 (2015) 73–84.","apa":"Bornmann, P., Hemsel, T., Sextro, W., Memoli, G., Hodnett, M., &#38; Zeqiri, B. (2015). Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler. <i>Tm - Technisches Messen</i>, <i>82</i>(2), 73–84. <a href=\"https://doi.org/10.1515/teme-2015-0017\">https://doi.org/10.1515/teme-2015-0017</a>","ama":"Bornmann P, Hemsel T, Sextro W, Memoli G, Hodnett M, Zeqiri B. Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler. <i>tm - Technisches Messen</i>. 2015;82(2):73-84. doi:<a href=\"https://doi.org/10.1515/teme-2015-0017\">10.1515/teme-2015-0017</a>","ieee":"P. Bornmann, T. Hemsel, W. Sextro, G. Memoli, M. Hodnett, and B. Zeqiri, “Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler,” <i>tm - Technisches Messen</i>, vol. 82, no. 2, pp. 73–84, 2015.","chicago":"Bornmann, Peter, Tobias Hemsel, Walter Sextro, Gianluca Memoli, Mark Hodnett, and Bajram Zeqiri. “Kavitationsdetektion Mittels Self-Sensing-Ultraschallwandler.” <i>Tm - Technisches Messen</i> 82, no. 2 (2015): 73–84. <a href=\"https://doi.org/10.1515/teme-2015-0017\">https://doi.org/10.1515/teme-2015-0017</a>."},"page":"73-84","intvolume":"        82","year":"2015","issue":"2","doi":"10.1515/teme-2015-0017","title":"Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler","date_created":"2019-05-27T08:13:40Z","author":[{"last_name":"Bornmann","full_name":"Bornmann, Peter","first_name":"Peter"},{"last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"},{"first_name":"Gianluca","last_name":"Memoli","full_name":"Memoli, Gianluca"},{"first_name":"Mark","full_name":"Hodnett, Mark","last_name":"Hodnett"},{"full_name":"Zeqiri, Bajram","last_name":"Zeqiri","first_name":"Bajram"}],"volume":82,"date_updated":"2019-09-16T10:44:38Z","status":"public","abstract":[{"lang":"eng","text":"Eine Vielzahl von Prozessen in der Chemie und Verfahrenstechnik kann durch Ultraschall positiv beeinflusst werden. Oftmals ist ultraschallinduzierte Kavitation der Hauptwirkmechanismus für die positiven Effekte der Beschallung. Daher ist es notwendig die Kavitationsaktivität während des Prozesses zu quantifizieren um die Beschallung für den jeweiligen Prozess optimal gestalten und überwachen zu können. Eine Möglichkeit der prozessbegleitenden Kavitationsdetektion ist die Auswertung der akustischen Emissionen von oszillierenden und kollabierenden Kavitationsblasen mittels Drucksensoren in der Flüssigkeit. Raue Prozessrandbedingungen wie hohe Temperaturen oder aggressive Flüssigkeiten erschweren es jedoch geeignete Sensoren zu finden. Als Alternative wurde daher die Nutzbarkeit der Rückwirkung von Kavitationsereignissen auf das elektrische Eingansgssignal des Ultraschallwandlers zur Quantifizierung von Kavitation untersucht. Die experimentelle Analyse hat ergeben, dass das Einsetzen und in einigen Fällen auch die Art der Kavitation auf Basis der Rückwirkung auf das Stromsignal des Ultraschallwandlers bestimmt werden kann. Die Stärke der Kavitation war hingegen nicht aus den Stromsignalen abzuleiten."}],"type":"journal_article","popular_science":"1","publication":"tm - Technisches Messen","language":[{"iso":"eng"}],"keyword":["Kavitationsdetektion","Self-Sensing","So- nochemie","Ultraschallwandler"],"user_id":"55222","department":[{"_id":"151"}],"_id":"9944"},{"department":[{"_id":"151"}],"user_id":"55222","_id":"9949","language":[{"iso":"eng"}],"keyword":["Adaptive systems","Reliability analysis","Availability","Adaptive control","Maintenance","Self-optimizing systems","Self-optimizing control","Stochastic Petri-nets"],"publication":"Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes","type":"conference","status":"public","abstract":[{"lang":"eng","text":"Intelligent mechatronic systems other the possibility to adapt system behavior to current dependability. This can be used to assure reliability by controlling system behavior to reach a pre-defined lifetime. By using such closed loop control, the margin of error of useful lifetime of an individual system is lowered. It is also possible to change the pre-defined lifetime during operation, by adapting system behavior to derate component usage. When planning maintenance actions, the remaining useful lifetime of each individual system has to be taken into account. Usually, stochastic properties of a fleet of systems are analyzed to create maintenance plans. Among these, the main factor is the probability of an individual system to last until maintenance. If condition-based maintenance is used, this is updated for each individual system using available information about its current state. By lowering the margin of error of useful lifetime, which directly corresponds to the time until maintenance, extended maintenance periods are made possible. Also using reliability-adaptive operation, a reversal of degradation driven maintenance planning is possible where a maintenance plan is setup not only according to system properties, but mainly to requirements imposed by maintenance personnel or infrastructure. Each system then adapts its behavior accordingly and fails according to the maintenance plan, making better use of maintenance personnel and system capabilities at the same time. In this contribution, the potential of maintenance plan driven system behavior adaptation is shown. A model including adaptation process and maintenance actions is simulated over full system lifetime to assess the advantages gained."}],"date_created":"2019-05-27T08:29:40Z","author":[{"last_name":"Meyer","full_name":"Meyer, Tobias","first_name":"Tobias"},{"last_name":"Kaul","full_name":"Kaul, Thorben","id":"14802","first_name":"Thorben"},{"id":"21220","full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter"}],"date_updated":"2019-09-16T10:43:42Z","doi":"10.1016/j.ifacol.2015.09.647","title":"Advantages of reliability-adaptive system operation for maintenance planning","quality_controlled":"1","page":"940-945","citation":{"mla":"Meyer, Tobias, et al. “Advantages of Reliability-Adaptive System Operation for Maintenance Planning.” <i>Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes</i>, 2015, pp. 940–45, doi:<a href=\"https://doi.org/10.1016/j.ifacol.2015.09.647\">10.1016/j.ifacol.2015.09.647</a>.","short":"T. Meyer, T. Kaul, W. Sextro, in: Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, 2015, pp. 940–945.","bibtex":"@inproceedings{Meyer_Kaul_Sextro_2015, title={Advantages of reliability-adaptive system operation for maintenance planning}, DOI={<a href=\"https://doi.org/10.1016/j.ifacol.2015.09.647\">10.1016/j.ifacol.2015.09.647</a>}, booktitle={Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes}, author={Meyer, Tobias and Kaul, Thorben and Sextro, Walter}, year={2015}, pages={940–945} }","apa":"Meyer, T., Kaul, T., &#38; Sextro, W. (2015). Advantages of reliability-adaptive system operation for maintenance planning. In <i>Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes</i> (pp. 940–945). <a href=\"https://doi.org/10.1016/j.ifacol.2015.09.647\">https://doi.org/10.1016/j.ifacol.2015.09.647</a>","ieee":"T. Meyer, T. Kaul, and W. Sextro, “Advantages of reliability-adaptive system operation for maintenance planning,” in <i>Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes</i>, 2015, pp. 940–945.","chicago":"Meyer, Tobias, Thorben Kaul, and Walter Sextro. “Advantages of Reliability-Adaptive System Operation for Maintenance Planning.” In <i>Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes</i>, 940–45, 2015. <a href=\"https://doi.org/10.1016/j.ifacol.2015.09.647\">https://doi.org/10.1016/j.ifacol.2015.09.647</a>.","ama":"Meyer T, Kaul T, Sextro W. Advantages of reliability-adaptive system operation for maintenance planning. In: <i>Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes</i>. ; 2015:940-945. doi:<a href=\"https://doi.org/10.1016/j.ifacol.2015.09.647\">10.1016/j.ifacol.2015.09.647</a>"},"year":"2015"},{"doi":"10.1109/AHS.2015.7231178","title":"Microarchitectural optimization by means of reconfigurable and evolvable cache mappings","date_created":"2019-07-10T11:18:00Z","author":[{"full_name":"Ho, Nam","last_name":"Ho","first_name":"Nam"},{"last_name":"Ahmed","full_name":"Ahmed, Abdullah Fathi","first_name":"Abdullah Fathi"},{"last_name":"Kaufmann","full_name":"Kaufmann, Paul","first_name":"Paul"},{"first_name":"Marco","last_name":"Platzner","full_name":"Platzner, Marco","id":"398"}],"date_updated":"2022-01-06T06:50:49Z","page":"1-7","citation":{"ama":"Ho N, Ahmed AF, Kaufmann P, Platzner M. Microarchitectural optimization by means of reconfigurable and evolvable cache mappings. In: <i>Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)</i>. ; 2015:1-7. doi:<a href=\"https://doi.org/10.1109/AHS.2015.7231178\">10.1109/AHS.2015.7231178</a>","ieee":"N. Ho, A. F. Ahmed, P. Kaufmann, and M. Platzner, “Microarchitectural optimization by means of reconfigurable and evolvable cache mappings,” in <i>Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)</i>, 2015, pp. 1–7.","chicago":"Ho, Nam, Abdullah Fathi Ahmed, Paul Kaufmann, and Marco Platzner. “Microarchitectural Optimization by Means of Reconfigurable and Evolvable Cache Mappings.” In <i>Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)</i>, 1–7, 2015. <a href=\"https://doi.org/10.1109/AHS.2015.7231178\">https://doi.org/10.1109/AHS.2015.7231178</a>.","apa":"Ho, N., Ahmed, A. F., Kaufmann, P., &#38; Platzner, M. (2015). Microarchitectural optimization by means of reconfigurable and evolvable cache mappings. In <i>Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)</i> (pp. 1–7). <a href=\"https://doi.org/10.1109/AHS.2015.7231178\">https://doi.org/10.1109/AHS.2015.7231178</a>","short":"N. Ho, A.F. Ahmed, P. Kaufmann, M. Platzner, in: Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS), 2015, pp. 1–7.","mla":"Ho, Nam, et al. “Microarchitectural Optimization by Means of Reconfigurable and Evolvable Cache Mappings.” <i>Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)</i>, 2015, pp. 1–7, doi:<a href=\"https://doi.org/10.1109/AHS.2015.7231178\">10.1109/AHS.2015.7231178</a>.","bibtex":"@inproceedings{Ho_Ahmed_Kaufmann_Platzner_2015, title={Microarchitectural optimization by means of reconfigurable and evolvable cache mappings}, DOI={<a href=\"https://doi.org/10.1109/AHS.2015.7231178\">10.1109/AHS.2015.7231178</a>}, booktitle={Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)}, author={Ho, Nam and Ahmed, Abdullah Fathi and Kaufmann, Paul and Platzner, Marco}, year={2015}, pages={1–7} }"},"year":"2015","language":[{"iso":"eng"}],"keyword":["cache storage","field programmable gate arrays","multiprocessing systems","parallel architectures","reconfigurable architectures","FPGA","dynamic reconfiguration","evolvable cache mapping","many-core architecture","memory-to-cache address mapping function","microarchitectural optimization","multicore architecture","nature-inspired optimization","parallelization degrees","processor","reconfigurable cache mapping","reconfigurable computing","Field programmable gate arrays","Software","Tuning"],"department":[{"_id":"78"}],"user_id":"3118","_id":"10673","project":[{"_id":"31","name":"Engineering Proprioception in Computing Systems","grant_number":"257906"}],"status":"public","publication":"Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)","type":"conference"},{"date_created":"2022-02-23T09:24:36Z","author":[{"first_name":"Karl Stephan Christian","full_name":"Stille, Karl Stephan Christian","id":"30152","last_name":"Stille","orcid":"0000-0002-4212-6555"},{"first_name":"Joachim","full_name":"Böcker, Joachim","id":"66","last_name":"Böcker","orcid":"0000-0002-8480-7295"},{"full_name":"Bettentrup, Ralf","last_name":"Bettentrup","first_name":"Ralf"},{"last_name":"Kaiser","full_name":"Kaiser, Ingo","first_name":"Ingo"}],"publisher":"VDE","date_updated":"2022-02-23T16:10:58Z","main_file_link":[{"url":"https://www.vde-verlag.de/proceedings-en/453897045.html"}],"title":"Hierarchisches Optimierungskonzept für die Laststeuerung von Haushaltsgeräten","citation":{"ama":"Stille KSC, Böcker J, Bettentrup R, Kaiser I. Hierarchisches Optimierungskonzept für die Laststeuerung von Haushaltsgeräten. In: <i>ETG-Fachtagung “Von Smart Grids Zu Smart Markets.”</i> VDE; 2015.","ieee":"K. S. C. Stille, J. Böcker, R. Bettentrup, and I. Kaiser, “Hierarchisches Optimierungskonzept für die Laststeuerung von Haushaltsgeräten,” 2015.","chicago":"Stille, Karl Stephan Christian, Joachim Böcker, Ralf Bettentrup, and Ingo Kaiser. “Hierarchisches Optimierungskonzept Für Die Laststeuerung von Haushaltsgeräten.” In <i>ETG-Fachtagung “Von Smart Grids Zu Smart Markets.”</i> Kassel: VDE, 2015.","apa":"Stille, K. S. C., Böcker, J., Bettentrup, R., &#38; Kaiser, I. (2015). Hierarchisches Optimierungskonzept für die Laststeuerung von Haushaltsgeräten. <i>ETG-Fachtagung “Von Smart Grids Zu Smart Markets.”</i>","short":"K.S.C. Stille, J. Böcker, R. Bettentrup, I. Kaiser, in: ETG-Fachtagung “Von Smart Grids Zu Smart Markets,” VDE, Kassel, 2015.","bibtex":"@inproceedings{Stille_Böcker_Bettentrup_Kaiser_2015, place={Kassel}, title={Hierarchisches Optimierungskonzept für die Laststeuerung von Haushaltsgeräten}, booktitle={ETG-Fachtagung “Von Smart Grids zu Smart Markets”}, publisher={VDE}, author={Stille, Karl Stephan Christian and Böcker, Joachim and Bettentrup, Ralf and Kaiser, Ingo}, year={2015} }","mla":"Stille, Karl Stephan Christian, et al. “Hierarchisches Optimierungskonzept Für Die Laststeuerung von Haushaltsgeräten.” <i>ETG-Fachtagung “Von Smart Grids Zu Smart Markets,”</i> VDE, 2015."},"year":"2015","place":"Kassel","department":[{"_id":"52"}],"user_id":"66","_id":"29973","language":[{"iso":"eng"}],"keyword":["Energy management","hybrid energy storage system","self-optimization","multi-objective optimization","adaptive systems","pareto set","SFB614-D1","SFB614-D2","LEA-Publikation","Eigene"],"publication":"ETG-Fachtagung \"Von Smart Grids zu Smart Markets\"","type":"conference","status":"public","abstract":[{"lang":"eng","text":"Haushaltsgeräte aus der Klasse der \"Weißen Ware\" tragen mit etwa einem Drittel ($34,2%$ \\citeBDEW2013) zum privaten Energieverbrauch bei. Diese Veröffentlichung präsentiert eine Struktur und die dafür notwendige optimale Betriebsstrategie für Weiße Ware in einer Umgebung mit Strompreisen, die wegen der Volatilität der Regenerativen Energien stark fluktuieren. Das vorgeschlagene Konzept nutzt dafür ein dezentrales Energiemanagementsystem, das über drei Hierarchieebenen verteilt ist: die Geräteebene, die Haushaltsebene und die Ortsnetzebene. Auf der Geräteebene nutzt dieses Konzept zusätzlich Betriebsflexibilitäten der Haushaltsgeräte aus."}]}]