--- _id: '7535' author: - first_name: Irina full_name: Böckelmann, Irina last_name: Böckelmann - first_name: Daniel full_name: Schenk, Daniel last_name: Schenk - first_name: Thoralf full_name: Rößler, Thoralf last_name: Rößler - first_name: Simon full_name: Adler, Simon last_name: Adler - first_name: Björn full_name: Senft, Björn id: '9109' last_name: Senft - first_name: Jens full_name: Grubert, Jens last_name: Grubert - first_name: Rüdiger full_name: Mecke, Rüdiger last_name: Mecke - first_name: Anke full_name: Huckauf, Anke last_name: Huckauf - first_name: Mario full_name: Urbina, Mario last_name: Urbina - first_name: Johannes full_name: Tümler, Johannes last_name: Tümler - first_name: Sabine full_name: Darius, Sabine last_name: Darius citation: ama: 'Böckelmann I, Schenk D, Rößler T, et al. Physiologische Beanspruchungsreaktionen bei der Anwendung von kopfgetragenen AR-Displays. In: ; 2011.' apa: Böckelmann, I., Schenk, D., Rößler, T., Adler, S., Senft, B., Grubert, J., … Darius, S. (2011). Physiologische Beanspruchungsreaktionen bei der Anwendung von kopfgetragenen AR-Displays. Presented at the 51. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Arbeitsmedizin und Umweltmedizin e. V. (DGAUM). bibtex: '@inproceedings{Böckelmann_Schenk_Rößler_Adler_Senft_Grubert_Mecke_Huckauf_Urbina_Tümler_et al._2011, title={Physiologische Beanspruchungsreaktionen bei der Anwendung von kopfgetragenen AR-Displays}, author={Böckelmann, Irina and Schenk, Daniel and Rößler, Thoralf and Adler, Simon and Senft, Björn and Grubert, Jens and Mecke, Rüdiger and Huckauf, Anke and Urbina, Mario and Tümler, Johannes and et al.}, year={2011} }' chicago: Böckelmann, Irina, Daniel Schenk, Thoralf Rößler, Simon Adler, Björn Senft, Jens Grubert, Rüdiger Mecke, et al. “Physiologische Beanspruchungsreaktionen Bei Der Anwendung von Kopfgetragenen AR-Displays,” 2011. ieee: I. Böckelmann et al., “Physiologische Beanspruchungsreaktionen bei der Anwendung von kopfgetragenen AR-Displays,” presented at the 51. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Arbeitsmedizin und Umweltmedizin e. V. (DGAUM), 2011. mla: Böckelmann, Irina, et al. Physiologische Beanspruchungsreaktionen Bei Der Anwendung von Kopfgetragenen AR-Displays. 2011. short: 'I. Böckelmann, D. Schenk, T. Rößler, S. Adler, B. Senft, J. Grubert, R. Mecke, A. Huckauf, M. Urbina, J. Tümler, S. Darius, in: 2011.' conference: name: 51. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Arbeitsmedizin und Umweltmedizin e. V. (DGAUM) date_created: 2019-02-05T12:36:59Z date_updated: 2022-01-06T07:03:39Z department: - _id: '66' language: - iso: eng status: public title: Physiologische Beanspruchungsreaktionen bei der Anwendung von kopfgetragenen AR-Displays type: conference user_id: '9109' year: '2011' ... --- _id: '7536' author: - first_name: Florian full_name: Klompmaker, Florian last_name: Klompmaker - first_name: Björn full_name: Senft, Björn id: '9109' last_name: Senft - first_name: Karsten full_name: Nebe, Karsten last_name: Nebe - first_name: Clemens full_name: Busch, Clemens last_name: Busch - first_name: Detlev full_name: Willemsen, Detlev last_name: Willemsen citation: ama: 'Klompmaker F, Senft B, Nebe K, Busch C, Willemsen D. User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application. In: {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011. ; 2011:268-273.' apa: Klompmaker, F., Senft, B., Nebe, K., Busch, C., & Willemsen, D. (2011). User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application. In {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011 (pp. 268–273). bibtex: '@inproceedings{Klompmaker_Senft_Nebe_Busch_Willemsen_2011, title={User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application}, booktitle={{HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011}, author={Klompmaker, Florian and Senft, Björn and Nebe, Karsten and Busch, Clemens and Willemsen, Detlev}, year={2011}, pages={268–273} }' chicago: Klompmaker, Florian, Björn Senft, Karsten Nebe, Clemens Busch, and Detlev Willemsen. “User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application.” In {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011, 268–73, 2011. ieee: F. Klompmaker, B. Senft, K. Nebe, C. Busch, and D. Willemsen, “User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application,” in {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011, 2011, pp. 268–273. mla: Klompmaker, Florian, et al. “User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application.” {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011, 2011, pp. 268–73. short: 'F. Klompmaker, B. Senft, K. Nebe, C. Busch, D. Willemsen, in: {HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011, 2011, pp. 268–273.' date_created: 2019-02-05T12:41:05Z date_updated: 2022-01-06T07:03:39Z department: - _id: '66' language: - iso: eng page: 268-273 publication: '{HEALTHINF} 2011 - Proceedings of the International Conference on Health Informatics, Rome, Italy, 26-29 January, 2011' status: public title: User Centered Design Process of OSAMi-D - Developing User Interfaces for a Remote Ergometer Training Application type: conference user_id: '9109' year: '2011' ... --- _id: '7604' author: - first_name: H.-Hugo full_name: Kremer, H.-Hugo id: '15280' last_name: Kremer - first_name: T. full_name: Tramm, T. last_name: Tramm citation: ama: Kremer H-H, Tramm T. Berufliche Bildung 2011, Fachtagung 19. bwp@ Berufs- und Wirtschaftspädagogik - online. 2011. apa: Kremer, H.-H., & Tramm, T. (2011). Berufliche Bildung 2011, Fachtagung 19. bwp@ Berufs- und Wirtschaftspädagogik - online. bibtex: '@article{Kremer_Tramm_2011, title={Berufliche Bildung 2011, Fachtagung 19}, journal={bwp@ Berufs- und Wirtschaftspädagogik - online}, author={Kremer, H.-Hugo and Tramm, T.}, year={2011} }' chicago: Kremer, H.-Hugo, and T. Tramm. “Berufliche Bildung 2011, Fachtagung 19.” bwp@ Berufs- und Wirtschaftspädagogik - online, 2011. ieee: H.-H. Kremer and T. Tramm, “Berufliche Bildung 2011, Fachtagung 19,” bwp@ Berufs- und Wirtschaftspädagogik - online, 2011. mla: Kremer, H. Hugo, and T. Tramm. “Berufliche Bildung 2011, Fachtagung 19.” bwp@ Berufs- und Wirtschaftspädagogik - online, 2011. short: H.-H. Kremer, T. Tramm, bwp@ Berufs- und Wirtschaftspädagogik - online (2011). date_created: 2019-02-08T09:24:34Z date_updated: 2022-01-06T07:03:40Z department: - _id: '211' language: - iso: ger main_file_link: - url: http://www.bwpat.de/ht2011/ft19/editorial_ft19-ht2011.pdf publication: bwp@ Berufs- und Wirtschaftspädagogik - online status: public title: Berufliche Bildung 2011, Fachtagung 19 type: journal_article user_id: '74378' year: '2011' ... --- _id: '8348' author: - first_name: Stefan full_name: Krauter, Stefan id: '28836' last_name: Krauter orcid: 0000-0002-3594-260X citation: ama: 'Krauter S. The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives. In: Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011. ; 2011.' apa: Krauter, S. (2011). The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives. In Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011. bibtex: '@inproceedings{Krauter_2011, title={The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives}, booktitle={ Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011.}, author={Krauter, Stefan}, year={2011} }' chicago: Krauter, Stefan. “The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives.” In Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011., 2011. ieee: S. Krauter, “The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives,” in Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011., 2011. mla: Krauter, Stefan. “The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives.” Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011., 2011. short: 'S. Krauter, in: Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011., 2011.' conference: name: Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011. date_created: 2019-03-05T13:32:51Z date_updated: 2022-01-06T07:03:53Z department: - _id: '53' language: - iso: eng publication: ' Proceedings of Decentralized Power Systems (DPS) 2011, Paderborn (Deutschland), 2. September 2011.' status: public title: The Challenge of Renewable Energies & Decentralized Power Systems – State of the Art, Potentials & Perspectives type: conference user_id: '16148' year: '2011' ... --- _id: '8471' abstract: - lang: eng text: Performance is an important quality attribute for business information systems. When a tester has spotted a performance error, the error is passed to the software developers to fix it. However, in component-based software development the tester has to do blame analysis first, i. e. the tester has to decide, which party is responsible to fix the error. If the error is a design or deployment issue, it can be assigned to the software architect or the system deployer. If the error is specific to a component, it needs to be assigned to the corresponding component developer. An accurate blame analysis is important, because wrong assignments of errors will cause a loss of time and money. Our approach aims at doing blame analysis for performance errors by comparing performance metrics obtained in performance testing and performance prediction. We use performance prediction values as expected values for individual components. For performance prediction we use the Palladio approach. By this means, our approach evaluates each component’s performance in a certain test case. If the component performs poorly, its component developer needs to fix the component or the architect replaces the component with a faster one. If no omponent performs poorly, we can deduce that there is a design or deployment issue and the architecture needs to be changed. In this paper, we present an exemplary blame analysis based on a web shop system. The example shows the feasibility of our approach. author: - first_name: Frank full_name: Brüseke, Frank last_name: Brüseke - first_name: Steffen full_name: Becker, Steffen last_name: Becker - first_name: Gregor full_name: Engels, Gregor id: '107' last_name: Engels citation: ama: 'Brüseke F, Becker S, Engels G. Palladio-based performance blame analysis. In: Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; Satellite Event of the CompArch 2011), Boulder Colorado, CO (USA). New York, NY (USA): ACM; 2011:25-32. doi:http://dx.doi.org/10.1145/2000292.2000298' apa: 'Brüseke, F., Becker, S., & Engels, G. (2011). Palladio-based performance blame analysis. In Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; satellite event of the CompArch 2011), Boulder Colorado, CO (USA) (pp. 25–32). New York, NY (USA): ACM. http://dx.doi.org/10.1145/2000292.2000298' bibtex: '@inproceedings{Brüseke_Becker_Engels_2011, place={New York, NY (USA)}, title={Palladio-based performance blame analysis}, DOI={http://dx.doi.org/10.1145/2000292.2000298}, booktitle={Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; satellite event of the CompArch 2011), Boulder Colorado, CO (USA)}, publisher={ACM}, author={Brüseke, Frank and Becker, Steffen and Engels, Gregor}, year={2011}, pages={25–32} }' chicago: 'Brüseke, Frank, Steffen Becker, and Gregor Engels. “Palladio-Based Performance Blame Analysis.” In Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; Satellite Event of the CompArch 2011), Boulder Colorado, CO (USA), 25–32. New York, NY (USA): ACM, 2011. http://dx.doi.org/10.1145/2000292.2000298.' ieee: F. Brüseke, S. Becker, and G. Engels, “Palladio-based performance blame analysis,” in Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; satellite event of the CompArch 2011), Boulder Colorado, CO (USA), 2011, pp. 25–32. mla: Brüseke, Frank, et al. “Palladio-Based Performance Blame Analysis.” Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; Satellite Event of the CompArch 2011), Boulder Colorado, CO (USA), ACM, 2011, pp. 25–32, doi:http://dx.doi.org/10.1145/2000292.2000298. short: 'F. Brüseke, S. Becker, G. Engels, in: Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; Satellite Event of the CompArch 2011), Boulder Colorado, CO (USA), ACM, New York, NY (USA), 2011, pp. 25–32.' date_created: 2019-03-08T09:36:29Z date_updated: 2022-01-06T07:03:55Z department: - _id: '66' doi: http://dx.doi.org/10.1145/2000292.2000298 language: - iso: eng page: 25-32 place: New York, NY (USA) publication: Proceedings of the 16th International Workshop on Component-Oriented Programming (WCOP; satellite event of the CompArch 2011), Boulder Colorado, CO (USA) publisher: ACM status: public title: Palladio-based performance blame analysis type: conference user_id: '52534' year: '2011' ... --- _id: '8472' author: - first_name: 'Benjamin ' full_name: 'Nagel, Benjamin ' last_name: Nagel citation: ama: 'Nagel B. Semi-automatische Ableitung externer Anpassungsmechanismen für selbst-adaptive Systeme. In: Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany). Lecture Notes in Informatics. Bonn: Gesellschaft für Informatik (GI); 2011.' apa: 'Nagel, B. (2011). Semi-automatische Ableitung externer Anpassungsmechanismen für selbst-adaptive Systeme. In Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany). Bonn: Gesellschaft für Informatik (GI).' bibtex: '@inproceedings{Nagel_2011, place={Bonn}, series={Lecture Notes in Informatics}, title={Semi-automatische Ableitung externer Anpassungsmechanismen für selbst-adaptive Systeme}, booktitle={Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany)}, publisher={Gesellschaft für Informatik (GI)}, author={Nagel, Benjamin }, year={2011}, collection={Lecture Notes in Informatics} }' chicago: 'Nagel, Benjamin . “Semi-Automatische Ableitung Externer Anpassungsmechanismen Für Selbst-Adaptive Systeme.” In Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany). Lecture Notes in Informatics. Bonn: Gesellschaft für Informatik (GI), 2011.' ieee: B. Nagel, “Semi-automatische Ableitung externer Anpassungsmechanismen für selbst-adaptive Systeme,” in Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany), 2011. mla: Nagel, Benjamin. “Semi-Automatische Ableitung Externer Anpassungsmechanismen Für Selbst-Adaptive Systeme.” Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany), Gesellschaft für Informatik (GI), 2011. short: 'B. Nagel, in: Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany), Gesellschaft für Informatik (GI), Bonn, 2011.' date_created: 2019-03-08T09:38:16Z date_updated: 2022-01-06T07:03:55Z department: - _id: '66' language: - iso: eng place: Bonn publication: Proceedings of the Software Engineering 2011 (SE 2011), Karlsruhe (Germany) publisher: Gesellschaft für Informatik (GI) series_title: Lecture Notes in Informatics status: public title: Semi-automatische Ableitung externer Anpassungsmechanismen für selbst-adaptive Systeme type: conference user_id: '52534' year: '2011' ... --- _id: '8841' author: - first_name: Ivan full_name: Jovanovikj, Ivan id: '39187' last_name: Jovanovikj orcid: https://orcid.org/0000-0002-1838-794X citation: ama: Jovanovikj I. Search on Semi-Structured Data Using Lucene Search Engine.; 2011. apa: Jovanovikj, I. (2011). Search on Semi-Structured Data using Lucene Search Engine. bibtex: '@book{Jovanovikj_2011, title={Search on Semi-Structured Data using Lucene Search Engine}, author={Jovanovikj, Ivan}, year={2011} }' chicago: Jovanovikj, Ivan. Search on Semi-Structured Data Using Lucene Search Engine, 2011. ieee: I. Jovanovikj, Search on Semi-Structured Data using Lucene Search Engine. 2011. mla: Jovanovikj, Ivan. Search on Semi-Structured Data Using Lucene Search Engine. 2011. short: I. Jovanovikj, Search on Semi-Structured Data Using Lucene Search Engine, 2011. date_created: 2019-04-08T07:36:16Z date_updated: 2022-01-06T07:04:03Z extern: '1' language: - iso: eng status: public title: Search on Semi-Structured Data using Lucene Search Engine type: bachelorsthesis user_id: '39187' year: '2011' ... --- _id: '9589' author: - first_name: Marc full_name: Beutner, Marc id: '21118' last_name: Beutner citation: ama: 'Beutner M. Kompetenzbegriff und Evaluation im beruflichen Bildungswesen. In: Häcker T, Bartel K, Peters K, eds. Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte. Baltmannsweiler; 2011:140-158.' apa: Beutner, M. (2011). Kompetenzbegriff und Evaluation im beruflichen Bildungswesen. In T. Häcker, K. Bartel, & K. Peters (Eds.), Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte (pp. 140–158). Baltmannsweiler. bibtex: '@inbook{Beutner_2011, place={Baltmannsweiler}, title={Kompetenzbegriff und Evaluation im beruflichen Bildungswesen}, booktitle={Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte}, author={Beutner, Marc}, editor={Häcker, Th and Bartel, K and Peters, KEditors}, year={2011}, pages={140–158} }' chicago: Beutner, Marc. “Kompetenzbegriff und Evaluation im beruflichen Bildungswesen.” In Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte, edited by Th Häcker, K Bartel, and K Peters, 140–58. Baltmannsweiler, 2011. ieee: M. Beutner, “Kompetenzbegriff und Evaluation im beruflichen Bildungswesen,” in Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte, T. Häcker, K. Bartel, and K. Peters, Eds. Baltmannsweiler, 2011, pp. 140–158. mla: Beutner, Marc. “Kompetenzbegriff und Evaluation im beruflichen Bildungswesen.” Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte, edited by Th Häcker et al., 2011, pp. 140–58. short: 'M. Beutner, in: T. Häcker, K. Bartel, K. Peters (Eds.), Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte, Baltmannsweiler, 2011, pp. 140–158.' date_created: 2019-05-02T07:52:45Z date_updated: 2022-01-06T07:04:16Z department: - _id: '211' editor: - first_name: Th full_name: Häcker, Th last_name: Häcker - first_name: K full_name: Bartel, K last_name: Bartel - first_name: K full_name: Peters, K last_name: Peters language: - iso: ger page: 140 - 158 place: Baltmannsweiler publication: Lehrerbildung phasenübergreifend denken. Facetten einer bundesweiten Debatte status: public title: Kompetenzbegriff und Evaluation im beruflichen Bildungswesen type: book_chapter user_id: '66030' year: '2011' ... --- _id: '9726' author: - first_name: Christina full_name: Flotmann, Christina id: '8736' last_name: Flotmann - first_name: Merle full_name: Tönnies, Merle id: '555' last_name: Tönnies citation: ama: 'Flotmann C, Tönnies M. Introducing Narrative in Drama. In: Tönnies M, Flotmann-Scholz C, eds. Narrative in Drama: CDE Studies 18. Vol 18. Trier: WVT; 2011:9-17.' apa: 'Flotmann, C., & Tönnies, M. (2011). Introducing Narrative in Drama. In M. Tönnies & C. Flotmann-Scholz (Eds.), Narrative in Drama: CDE Studies 18 (Vol. 18, pp. 9–17). Trier: WVT.' bibtex: '@inbook{Flotmann_Tönnies_2011, place={Trier}, title={Introducing Narrative in Drama}, volume={18}, booktitle={Narrative in Drama: CDE Studies 18}, publisher={WVT}, author={Flotmann, Christina and Tönnies, Merle}, editor={Tönnies, Merle and Flotmann-Scholz, ChristinaEditors}, year={2011}, pages={9–17} }' chicago: 'Flotmann, Christina, and Merle Tönnies. “Introducing Narrative in Drama.” In Narrative in Drama: CDE Studies 18, edited by Merle Tönnies and Christina Flotmann-Scholz, 18:9–17. Trier: WVT, 2011.' ieee: 'C. Flotmann and M. Tönnies, “Introducing Narrative in Drama,” in Narrative in Drama: CDE Studies 18, vol. 18, M. Tönnies and C. Flotmann-Scholz, Eds. Trier: WVT, 2011, pp. 9–17.' mla: 'Flotmann, Christina, and Merle Tönnies. “Introducing Narrative in Drama.” Narrative in Drama: CDE Studies 18, edited by Merle Tönnies and Christina Flotmann-Scholz, vol. 18, WVT, 2011, pp. 9–17.' short: 'C. Flotmann, M. Tönnies, in: M. Tönnies, C. Flotmann-Scholz (Eds.), Narrative in Drama: CDE Studies 18, WVT, Trier, 2011, pp. 9–17.' date_created: 2019-05-13T07:31:16Z date_updated: 2022-01-06T07:04:19Z department: - _id: '36' - _id: '1' - _id: '380' editor: - first_name: Merle full_name: Tönnies, Merle last_name: Tönnies - first_name: Christina full_name: Flotmann-Scholz, Christina last_name: Flotmann-Scholz intvolume: ' 18' language: - iso: eng page: 9-17 place: Trier publication: 'Narrative in Drama: CDE Studies 18' publication_status: published publisher: WVT status: public title: Introducing Narrative in Drama type: book_chapter user_id: '32277' volume: 18 year: '2011' ... --- _id: '9765' abstract: - lang: eng text: The multi-objective optimal design of a piezoelectric sandwich ultrasonic transducer is studied. The maximum vibration amplitude and the minimum electrical input power are considered as optimization objectives. Design variables involve continuous variables (dimensions of the transducer) and discrete variables (material types). Based on analytical models, the optimal design is formulated as a constrained multi-objective optimization problem. The optimization problem is then solved by using the elitist non-dominated sorting genetic algorithm (NSGA-II) and Pareto-optimal designs are obtained. The optimized results are analyzed and the preferred design is proposed. The optimization procedure presented in this contribution can be applied in multi-objective optimization problems of other piezoelectric transducers. author: - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Bo full_name: Fu, Bo last_name: Fu - first_name: Yi full_name: Jing, Yi last_name: Jing - first_name: Xuan full_name: Fu, Xuan last_name: Fu citation: ama: Hemsel T, Fu B, Jing Y, Fu X. Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm. Key Engineering Materials. 2011;474-476:1808-1812. doi:10.4028/www.scientific.net/KEM.474-476.1808 apa: Hemsel, T., Fu, B., Jing, Y., & Fu, X. (2011). Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm. Key Engineering Materials, 474476, 1808–1812. https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808 bibtex: '@article{Hemsel_Fu_Jing_Fu_2011, title={Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm}, volume={474–476}, DOI={10.4028/www.scientific.net/KEM.474-476.1808}, journal={Key Engineering Materials}, publisher={Trans Tech Publ}, author={Hemsel, Tobias and Fu, Bo and Jing, Yi and Fu, Xuan}, year={2011}, pages={1808–1812} }' chicago: 'Hemsel, Tobias, Bo Fu, Yi Jing, and Xuan Fu. “Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm.” Key Engineering Materials 474–476 (2011): 1808–12. https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808.' ieee: T. Hemsel, B. Fu, Y. Jing, and X. Fu, “Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm,” Key Engineering Materials, vol. 474–476, pp. 1808–1812, 2011. mla: Hemsel, Tobias, et al. “Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm.” Key Engineering Materials, vol. 474–476, Trans Tech Publ, 2011, pp. 1808–12, doi:10.4028/www.scientific.net/KEM.474-476.1808. short: T. Hemsel, B. Fu, Y. Jing, X. Fu, Key Engineering Materials 474–476 (2011) 1808–1812. date_created: 2019-05-13T10:54:42Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' doi: 10.4028/www.scientific.net/KEM.474-476.1808 language: - iso: eng page: 1808-1812 publication: Key Engineering Materials publisher: Trans Tech Publ quality_controlled: '1' status: public title: Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm type: journal_article user_id: '55222' volume: 474 - 476 year: '2011' ... --- _id: '9767' abstract: - lang: eng text: The paper presents the results of numerical and experimental investigation of cylindrical piezoelectric actuator used for achieving independent three degrees of freedom oscillations of the contact point. The design of actuator based on a hollow piezoelectric cylinder mounted on a metal rod. The piezoceramic cylinder has a radial polarization and special configuration of the electrodes that cover inner and outer surface of the cylinder. The main advantage of actuator's design is that solid metallic rod operates as a part of inner electrode of the cylinder and a stator of actuator. The geometry of piezoelectric actuator was adopted to reach resonance of oscillations for the first longitudinal mode and the third flexural mode at same frequency. The actuator is designed to move positioned object through contact point which is located on the top of the rod. The optimal topology of electrodes was found to achieve longitudinal and flexural oscillations of the actuator in two perpendicular planes. Three degrees of freedom of the positioning object can be achieved and control of the system can be implemented by applying different excitation schemes and regimes. The numerical simulation and experimental study of piezoelectric actuator was performed. Impedance of actuator was analyzed under different excitation regimes. The results of numerical modeling and experimental study were compared. Recommendations for the further development of this type of actuator are given. author: - first_name: Raimundas full_name: Lucinskis, Raimundas last_name: Lucinskis - first_name: Dalius full_name: Mazeika, Dalius last_name: Mazeika - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Ramutis full_name: Bansevicius, Ramutis last_name: Bansevicius citation: ama: Lucinskis R, Mazeika D, Hemsel T, Bansevicius R. Multi-DOF cylindrical piezoelectric actuator with radial polarization. AIP Conference Proceedings. 2011;1433(1):693-696. doi:10.1063/1.3703277 apa: Lucinskis, R., Mazeika, D., Hemsel, T., & Bansevicius, R. (2011). Multi-DOF cylindrical piezoelectric actuator with radial polarization. AIP Conference Proceedings, 1433(1), 693–696. https://doi.org/10.1063/1.3703277 bibtex: '@article{Lucinskis_Mazeika_Hemsel_Bansevicius_2011, title={Multi-DOF cylindrical piezoelectric actuator with radial polarization}, volume={1433}, DOI={10.1063/1.3703277}, number={1}, journal={AIP Conference Proceedings}, publisher={AIP}, author={Lucinskis, Raimundas and Mazeika, Dalius and Hemsel, Tobias and Bansevicius, Ramutis}, year={2011}, pages={693–696} }' chicago: 'Lucinskis, Raimundas, Dalius Mazeika, Tobias Hemsel, and Ramutis Bansevicius. “Multi-DOF Cylindrical Piezoelectric Actuator with Radial Polarization.” AIP Conference Proceedings 1433, no. 1 (2011): 693–96. https://doi.org/10.1063/1.3703277.' ieee: R. Lucinskis, D. Mazeika, T. Hemsel, and R. Bansevicius, “Multi-DOF cylindrical piezoelectric actuator with radial polarization,” AIP Conference Proceedings, vol. 1433, no. 1, pp. 693–696, 2011. mla: Lucinskis, Raimundas, et al. “Multi-DOF Cylindrical Piezoelectric Actuator with Radial Polarization.” AIP Conference Proceedings, vol. 1433, no. 1, AIP, 2011, pp. 693–96, doi:10.1063/1.3703277. short: R. Lucinskis, D. Mazeika, T. Hemsel, R. Bansevicius, AIP Conference Proceedings 1433 (2011) 693–696. date_created: 2019-05-13T10:56:30Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' doi: 10.1063/1.3703277 intvolume: ' 1433' issue: '1' keyword: - dielectric polarisation - piezoceramics - piezoelectric actuators language: - iso: eng page: 693-696 publication: AIP Conference Proceedings publisher: AIP quality_controlled: '1' status: public title: Multi-DOF cylindrical piezoelectric actuator with radial polarization type: journal_article user_id: '55222' volume: 1433 year: '2011' ... --- _id: '9768' author: - first_name: Oleg full_name: Lurie, Oleg last_name: Lurie - first_name: Ivan full_name: Kromov, Ivan last_name: Kromov - first_name: Ansgar full_name: Trächtler, Ansgar last_name: Trächtler - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Lurie O, Kromov I, Trächtler A, Sondermann-Wölke C, Sextro W. Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies. In: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte. Leonberg; 2011:99-110.' apa: Lurie, O., Kromov, I., Trächtler, A., Sondermann-Wölke, C., & Sextro, W. (2011). Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies. In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte (pp. 99–110). Leonberg. bibtex: '@inproceedings{Lurie_Kromov_Trächtler_Sondermann-Wölke_Sextro_2011, place={Leonberg}, title={Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies}, booktitle={25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte}, author={Lurie, Oleg and Kromov, Ivan and Trächtler, Ansgar and Sondermann-Wölke, Christoph and Sextro, Walter}, year={2011}, pages={99–110} }' chicago: Lurie, Oleg, Ivan Kromov, Ansgar Trächtler, Christoph Sondermann-Wölke, and Walter Sextro. “Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies.” In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, 99–110. Leonberg, 2011. ieee: O. Lurie, I. Kromov, A. Trächtler, C. Sondermann-Wölke, and W. Sextro, “Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies,” in 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte, 2011, pp. 99–110. mla: Lurie, Oleg, et al. “Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies.” 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, 2011, pp. 99–110. short: 'O. Lurie, I. Kromov, A. Trächtler, C. Sondermann-Wölke, W. Sextro, in: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, Leonberg, 2011, pp. 99–110.' date_created: 2019-05-13T10:57:24Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' language: - iso: eng page: 99-110 place: Leonberg publication: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte status: public title: Dependability Analysis of the Degradation Behavior of Mechatronics Systems with Different Operating Strategies type: conference user_id: '55222' year: '2011' ... --- _id: '9769' abstract: - lang: eng text: In this study, we report some improvements in a hydrothermal method for lead-free piezoelectric powders and the performance of the sintered (K$_{0.48}$Na$_{0.52}$)NbO$_{3}$ ceramics. To increase the obtained powder weight per source solution volume, the hydrothermal reaction conditions were modified. This improvement is important for mass production; however, it resulted in a larger particle size dispersion. Therefore, we examined to introduced the ball milling process that is useful for dense (K$_{0.48}$Na$_{0.52}$)NbO$_{3}$ ceramics. When a large amount of powder was obtained, it took a long time to eliminate the residual alkaline ions in the hydrothermal powders by a washing process. Therefore, a neutralization was conducted in the powder washing process. Using this powder, a solid solution of (K,Na)NbO$_{3}$ceramics was synthesized. The relative density was successfully increased. Concerning the electrical properties, the relative permittivity was improved, and the piezoelectric constant d$_{33}$ was also increased from 114 to 130 pC/N. author: - first_name: Takafumi full_name: Maeda, Takafumi last_name: Maeda - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: Maeda T, Hemsel T, Morita T. Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics. Japanese Journal of Applied Physics. 2011;50:07HC01. apa: Maeda, T., Hemsel, T., & Morita, T. (2011). Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics. Japanese Journal of Applied Physics, 50, 07HC01. bibtex: '@article{Maeda_Hemsel_Morita_2011, title={Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics}, volume={50}, journal={Japanese Journal of Applied Physics}, publisher={The Japan Society of Applied Physics}, author={Maeda, Takafumi and Hemsel, Tobias and Morita, Takeshi}, year={2011}, pages={07HC01} }' chicago: 'Maeda, Takafumi, Tobias Hemsel, and Takeshi Morita. “Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics.” Japanese Journal of Applied Physics 50 (2011): 07HC01.' ieee: T. Maeda, T. Hemsel, and T. Morita, “Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics,” Japanese Journal of Applied Physics, vol. 50, p. 07HC01, 2011. mla: Maeda, Takafumi, et al. “Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics.” Japanese Journal of Applied Physics, vol. 50, The Japan Society of Applied Physics, 2011, p. 07HC01. short: T. Maeda, T. Hemsel, T. Morita, Japanese Journal of Applied Physics 50 (2011) 07HC01. date_created: 2019-05-13T11:00:23Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' intvolume: ' 50' language: - iso: eng page: 07HC01 publication: Japanese Journal of Applied Physics publisher: The Japan Society of Applied Physics quality_controlled: '1' status: public title: Improved Process for Hydrothermal Lead-Free Piezoelectric Powders and Performances of Sintered (K0.48Na0.52)NbO3 Ceramics type: journal_article user_id: '55222' volume: 50 year: '2011' ... --- _id: '9770' abstract: - lang: eng text: One cannot image today's life without mechatronic systems, which have to be developed in a joint effort by teams of mechanical engineers, electrical engineers, control engineers and software engineers. Often these systems are applied in safety critical environments like in cars or aircrafts. This requires systems that function correctly and do not cause hazardous situations. However, random errors due to wear or external influences cannot be completely excluded. Consequently, we have to perform a hazard analysis for the system. Further, the union of four disciplines in one system requires the development and analysis of the system as a whole. We present a component-based hazard analysis that considers the entire mechatronic system including hardware, i.e. mechanical and electrical components, and software components. Our approach considers the physical properties of different types of flow in mechatronic systems. We have identified reusable patterns for the failure behavior which can be generated automatically. This reduces the effort for the developer. As cycles, e.g. control cycles, are an internal part of every mechatronic system our approach is able to handle cycles. The presented approach has been applied to a real-life case study. author: - first_name: Claudia full_name: Priesterjahn, Claudia last_name: Priesterjahn - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Mathias full_name: Tichy, Mathias last_name: Tichy - first_name: Christian full_name: Hölscher, Christian last_name: Hölscher citation: ama: 'Priesterjahn C, Sondermann-Wölke C, Tichy M, Hölscher C. Component-based Hazard Analysis for Mechatronic Systems. In: Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing (ISORC). Newport Beach, USA (USA): IEEE Computer Society; 2011.' apa: 'Priesterjahn, C., Sondermann-Wölke, C., Tichy, M., & Hölscher, C. (2011). Component-based Hazard Analysis for Mechatronic Systems. In Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-oriented Real-time Distributed Computing (ISORC). Newport Beach, USA (USA): IEEE Computer Society.' bibtex: '@inproceedings{Priesterjahn_Sondermann-Wölke_Tichy_Hölscher_2011, place={Newport Beach, USA (USA)}, title={Component-based Hazard Analysis for Mechatronic Systems}, booktitle={Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-oriented Real-time Distributed Computing (ISORC)}, publisher={IEEE Computer Society}, author={Priesterjahn, Claudia and Sondermann-Wölke, Christoph and Tichy, Mathias and Hölscher, Christian}, year={2011} }' chicago: 'Priesterjahn, Claudia, Christoph Sondermann-Wölke, Mathias Tichy, and Christian Hölscher. “Component-Based Hazard Analysis for Mechatronic Systems.” In Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing (ISORC). Newport Beach, USA (USA): IEEE Computer Society, 2011.' ieee: C. Priesterjahn, C. Sondermann-Wölke, M. Tichy, and C. Hölscher, “Component-based Hazard Analysis for Mechatronic Systems,” in Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-oriented Real-time Distributed Computing (ISORC), 2011. mla: Priesterjahn, Claudia, et al. “Component-Based Hazard Analysis for Mechatronic Systems.” Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing (ISORC), IEEE Computer Society, 2011. short: 'C. Priesterjahn, C. Sondermann-Wölke, M. Tichy, C. Hölscher, in: Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing (ISORC), IEEE Computer Society, Newport Beach, USA (USA), 2011.' date_created: 2019-05-13T11:01:13Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' language: - iso: eng place: Newport Beach, USA (USA) publication: Proc. of the 2nd IEEE International Workshop MoBE-RTES at the 14th IEEE International Symposium on Object/Component/Service-oriented Real-time Distributed Computing (ISORC) publisher: IEEE Computer Society quality_controlled: '1' status: public title: Component-based Hazard Analysis for Mechatronic Systems type: conference user_id: '55222' year: '2011' ... --- _id: '9771' abstract: - lang: eng text: "Dieser Beitrag stellt ein Konzept vor, welches die Methode der Mehrzieloptimierung mit einer Online-Bewertung des aktuellen Systemzustands kombiniert. Dieses erlaubt Maßnahmen zur Zuverlässigkeitssteigerung abzuleiten. Das Konzept wird auf ein X-by-wire-Fahrzeug mit Einzelradaktorik angewandt. Dabei steht zunächst die Beeinflussung der Ziele der Mehrzieloptimierung zugunsten der Zuverlässigkeit des Systems im Vordergrund. In Simulationen wird gezeigt, dass über die Wahl und Gewichtung der Zielfunktionen die Quer- und Längskräfte an den Rädern vorteilhaft verteilt werden können. \r\n\r\nIn this contribution a concept is illustrated, which combines the multi-objective optimization technique with an online assessment of the current system state. This allows deriving measures to increase the reliability of the system. The concept is applied to an X-by-wire vehicle with single-wheel actuators. The emphasis is here mostly on the influence of the objectives of the multiobjective optimization for the benefit of the reliability of the system. It is demonstrated in simulations, that the lateral and longitudinal forces at the wheels can be distributed advantageously by the selection of the suitable objective functions and the appropriate weights." author: - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Peter full_name: Reinold, Peter last_name: Reinold - first_name: Ansgar full_name: Trächtler, Ansgar last_name: Trächtler citation: ama: 'Sondermann-Wölke C, Sextro W, Reinold P, Trächtler A. Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs. In: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte. Leonberg; 2011:291-302.' apa: Sondermann-Wölke, C., Sextro, W., Reinold, P., & Trächtler, A. (2011). Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs. In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte (pp. 291–302). Leonberg. bibtex: '@inproceedings{Sondermann-Wölke_Sextro_Reinold_Trächtler_2011, place={Leonberg}, title={Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs}, booktitle={25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte}, author={Sondermann-Wölke, Christoph and Sextro, Walter and Reinold, Peter and Trächtler, Ansgar}, year={2011}, pages={291–302} }' chicago: Sondermann-Wölke, Christoph, Walter Sextro, Peter Reinold, and Ansgar Trächtler. “Zuverlässigkeitsorientierte Mehrzieloptimierung Zur Aktorrekonfiguration Eines X-by-Wire-Fahrzeugs.” In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, 291–302. Leonberg, 2011. ieee: C. Sondermann-Wölke, W. Sextro, P. Reinold, and A. Trächtler, “Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs,” in 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte, 2011, pp. 291–302. mla: Sondermann-Wölke, Christoph, et al. “Zuverlässigkeitsorientierte Mehrzieloptimierung Zur Aktorrekonfiguration Eines X-by-Wire-Fahrzeugs.” 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, 2011, pp. 291–302. short: 'C. Sondermann-Wölke, W. Sextro, P. Reinold, A. Trächtler, in: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte, Leonberg, 2011, pp. 291–302.' date_created: 2019-05-13T11:04:04Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' language: - iso: eng page: 291-302 place: Leonberg publication: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger Produkte status: public title: Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs type: conference user_id: '55222' year: '2011' ... --- _id: '9772' abstract: - lang: eng text: 'A profound description of friction in wheel--rail contact plays an essential role for optimization of traction control strategies, as input quantity for railway simulations in general and for the estimation of wear and rolling contact fatigue. A multitude of wheel--rail contact models exists, however, traction--creepage curves obtained from measurements show quantitative and qualitative deviations. There are several phenomena which influence the traction--creepage characteristics: Mechanisms resulting from surface roughness, frictional heating or the presence of interfacial fluids can have a dominating influence on friction. In this paper, a new wheel--rail contact model, accounting for these influential parameters, will be presented. The presented model accounts for the interaction of an interfacial fluid model for combined boundary and mixed lubrication of rough surfaces with a wheel--rail contact model that additionally accounts for frictional heating. A quantitative comparison with measurements found in the literature is not conducted, since the exact conditions of the measurements are mostly unknown and parameters can easily be adjusted to fit the measurements. Emphasis is placed on the qualitative behavior of the model with respect to the measurements and good agreement is found. The dependence of the maximum traction coefficient on rolling velocity, surface roughness and normal load is studied under dry and water lubricated conditions.' author: - first_name: Christoph full_name: Tomberger, Christoph last_name: Tomberger - first_name: Peter full_name: Dietmaier, Peter last_name: Dietmaier - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Klaus full_name: Six, Klaus last_name: Six citation: ama: 'Tomberger C, Dietmaier P, Sextro W, Six K. Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature. Wear. 2011;271:2-12. doi:10.1016/j.wear.2010.10.025' apa: 'Tomberger, C., Dietmaier, P., Sextro, W., & Six, K. (2011). Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature. Wear, 271, 2–12. https://doi.org/10.1016/j.wear.2010.10.025' bibtex: '@article{Tomberger_Dietmaier_Sextro_Six_2011, title={Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature}, volume={271}, DOI={10.1016/j.wear.2010.10.025}, journal={Wear}, author={Tomberger, Christoph and Dietmaier, Peter and Sextro, Walter and Six, Klaus}, year={2011}, pages={2–12} }' chicago: 'Tomberger, Christoph, Peter Dietmaier, Walter Sextro, and Klaus Six. “Friction in Wheel--Rail Contact: A Model Comprising Interfacial Fluids, Surface Roughness and Temperature.” Wear 271 (2011): 2–12. https://doi.org/10.1016/j.wear.2010.10.025.' ieee: 'C. Tomberger, P. Dietmaier, W. Sextro, and K. Six, “Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature,” Wear, vol. 271, pp. 2–12, 2011.' mla: 'Tomberger, Christoph, et al. “Friction in Wheel--Rail Contact: A Model Comprising Interfacial Fluids, Surface Roughness and Temperature.” Wear, vol. 271, 2011, pp. 2–12, doi:10.1016/j.wear.2010.10.025.' short: C. Tomberger, P. Dietmaier, W. Sextro, K. Six, Wear 271 (2011) 2–12. date_created: 2019-05-13T11:08:32Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' doi: 10.1016/j.wear.2010.10.025 intvolume: ' 271' keyword: - Wheel--rail contact - Rolling contact - Friction - Interfacial fluid - Lubrication - Surface roughness - Contact temperature language: - iso: eng page: 2 - 12 publication: Wear publication_identifier: issn: - 0043-1648 quality_controlled: '1' status: public title: 'Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature' type: journal_article user_id: '55222' volume: 271 year: '2011' ... --- _id: '9877' author: - first_name: Gaku full_name: Isobe, Gaku last_name: Isobe - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: Isobe G, Bornmann P, Hemsel T, Morita T. High temperature tolerant transducer for Ultrasonic Assisted Hydrothermal Method. Proceedings of Symposium on Ultrasonic Electronics. 2011;32:19-20. apa: Isobe, G., Bornmann, P., Hemsel, T., & Morita, T. (2011). High temperature tolerant transducer for Ultrasonic Assisted Hydrothermal Method. Proceedings of Symposium on Ultrasonic Electronics, 32, 19–20. bibtex: '@article{Isobe_Bornmann_Hemsel_Morita_2011, title={High temperature tolerant transducer for Ultrasonic Assisted Hydrothermal Method}, volume={32}, journal={Proceedings of Symposium on Ultrasonic Electronics}, publisher={Trans Tech Publ}, author={Isobe, Gaku and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi}, year={2011}, pages={19–20} }' chicago: 'Isobe, Gaku, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “High Temperature Tolerant Transducer for Ultrasonic Assisted Hydrothermal Method.” Proceedings of Symposium on Ultrasonic Electronics 32 (2011): 19–20.' ieee: G. Isobe, P. Bornmann, T. Hemsel, and T. Morita, “High temperature tolerant transducer for Ultrasonic Assisted Hydrothermal Method,” Proceedings of Symposium on Ultrasonic Electronics, vol. 32, pp. 19–20, 2011. mla: Isobe, Gaku, et al. “High Temperature Tolerant Transducer for Ultrasonic Assisted Hydrothermal Method.” Proceedings of Symposium on Ultrasonic Electronics, vol. 32, Trans Tech Publ, 2011, pp. 19–20. short: G. Isobe, P. Bornmann, T. Hemsel, T. Morita, Proceedings of Symposium on Ultrasonic Electronics 32 (2011) 19–20. date_created: 2019-05-20T13:09:04Z date_updated: 2019-09-16T11:31:38Z department: - _id: '151' intvolume: ' 32' language: - iso: eng page: 19-20 publication: Proceedings of Symposium on Ultrasonic Electronics publisher: Trans Tech Publ quality_controlled: '1' status: public title: High temperature tolerant transducer for Ultrasonic Assisted Hydrothermal Method type: journal_article user_id: '55222' volume: 32 year: '2011' ... --- _id: '9918' citation: ama: 'Tönnies M, Flotmann C, eds. Narrative in Drama. Trier: WVT; 2011.' apa: 'Tönnies, M., & Flotmann, C. (Eds.). (2011). Narrative in Drama. Trier: WVT.' bibtex: '@book{Tönnies_Flotmann_2011, place={Trier}, title={Narrative in Drama}, publisher={WVT}, year={2011} }' chicago: 'Tönnies, Merle, and Christina Flotmann, eds. Narrative in Drama. Trier: WVT, 2011.' ieee: 'M. Tönnies and C. Flotmann, Eds., Narrative in Drama. Trier: WVT, 2011.' mla: Tönnies, Merle, and Christina Flotmann, editors. Narrative in Drama. WVT, 2011. short: M. Tönnies, C. Flotmann, eds., Narrative in Drama, WVT, Trier, 2011. date_created: 2019-05-22T11:18:02Z date_updated: 2019-05-22T11:18:22Z department: - _id: '36' - _id: '1' - _id: '380' editor: - first_name: Merle full_name: Tönnies, Merle id: '555' last_name: Tönnies - first_name: Christina full_name: Flotmann, Christina id: '8736' last_name: Flotmann language: - iso: eng place: Trier publication_status: published publisher: WVT status: public title: Narrative in Drama type: book_editor user_id: '32277' year: '2011' ... --- _id: '4089' abstract: - lang: eng text: We study the influence of the phonon environment on the electron dynamics in a doped quantum dot molecule. A non-perturbative quantumkinetic theory based on correlation expansion is used in order to describe both diagonal and off-diagonal electron-phonon couplings representing real and virtual processes with relevant acoustic phonons. We show that the relaxation is dominated by phononassisted electron tunneling between constituent quantum dots and occurs on a picosecond time scale. The dependence of the time evolution of the quantum dot occupation probabilities on the energy mismatch between the quantum dots is studied in detail. article_type: original author: - first_name: Anna full_name: Grodecka-Grad, Anna last_name: Grodecka-Grad - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Grodecka-Grad A, Förstner J. Phonon-assisted decoherence and tunneling in quantum dot molecules. physica status solidi (c). 2011;8(4):1125-1128. doi:10.1002/pssc.201000824 apa: Grodecka-Grad, A., & Förstner, J. (2011). Phonon-assisted decoherence and tunneling in quantum dot molecules. Physica Status Solidi (C), 8(4), 1125–1128. https://doi.org/10.1002/pssc.201000824 bibtex: '@article{Grodecka-Grad_Förstner_2011, title={Phonon-assisted decoherence and tunneling in quantum dot molecules}, volume={8}, DOI={10.1002/pssc.201000824}, number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Grodecka-Grad, Anna and Förstner, Jens}, year={2011}, pages={1125–1128} }' chicago: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and Tunneling in Quantum Dot Molecules.” Physica Status Solidi (C) 8, no. 4 (2011): 1125–28. https://doi.org/10.1002/pssc.201000824.' ieee: A. Grodecka-Grad and J. Förstner, “Phonon-assisted decoherence and tunneling in quantum dot molecules,” physica status solidi (c), vol. 8, no. 4, pp. 1125–1128, 2011. mla: Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and Tunneling in Quantum Dot Molecules.” Physica Status Solidi (C), vol. 8, no. 4, Wiley, 2011, pp. 1125–28, doi:10.1002/pssc.201000824. short: A. Grodecka-Grad, J. Förstner, Physica Status Solidi (C) 8 (2011) 1125–1128. date_created: 2018-08-23T09:43:57Z date_updated: 2022-01-06T07:00:14Z ddc: - '530' department: - _id: '170' doi: 10.1002/pssc.201000824 file: - access_level: closed content_type: application/pdf creator: hclaudia date_created: 2018-08-23T09:45:30Z date_updated: 2018-08-23T09:45:30Z file_id: '4090' file_name: 2011 Grodecka-Grad,Förstner_ Phonon-assisted decoherence and tunneling in quantum dot molecules.pdf file_size: 202905 relation: main_file success: 1 file_date_updated: 2018-08-23T09:45:30Z has_accepted_license: '1' intvolume: ' 8' issue: '4' keyword: - tet_topic_qd language: - iso: eng page: 1125-1128 publication: physica status solidi (c) publication_identifier: issn: - 1862-6351 publication_status: published publisher: Wiley status: public title: Phonon-assisted decoherence and tunneling in quantum dot molecules type: journal_article user_id: '55706' volume: 8 year: '2011' ... --- _id: '4140' abstract: - lang: eng text: "In this paper we report on the successful reduction of tensile strain in a thin strained ion-beam\r\nsynthesized 3C-SiC(1 1 1) layer on silicon. The creation of a near-interface defect structure consisting\r\nof nanometric voids and stacking fault type defects by He ion implantation and subsequent annealing\r\nyields significant relaxation in the top SiC film. The microstructure of the defect layer is studied by transmission electron microscopy, and the strain state of the 3C-SiC layer was studied by high-resolution X-ray diffraction in a parallel beam configuration. Typical process conditions for the growth of GaN films on the SiC layer were emulated by high temperature treatments in a rapid thermal annealer or a quartz tube furnace. It is found that prolonged annealing at high temperatures leads to ripening of the voids and to a weaker reduction of the tensile strain. It is shown that this problem can be overcome by the co-implantation of oxygen ions to form highly thermally stable void/extended defect structures." article_type: original author: - first_name: M. full_name: Häberlen, M. last_name: Häberlen - first_name: B. full_name: Murphy, B. last_name: Murphy - first_name: B. full_name: Stritzker, B. last_name: Stritzker - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Häberlen M, Murphy B, Stritzker B, Lindner J. Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2011;272:322-325. doi:10.1016/j.nimb.2011.01.092' apa: 'Häberlen, M., Murphy, B., Stritzker, B., & Lindner, J. (2011). Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 272, 322–325. https://doi.org/10.1016/j.nimb.2011.01.092' bibtex: '@article{Häberlen_Murphy_Stritzker_Lindner_2011, title={Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering}, volume={272}, DOI={10.1016/j.nimb.2011.01.092}, journal={Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms}, publisher={Elsevier BV}, author={Häberlen, M. and Murphy, B. and Stritzker, B. and Lindner, Jörg}, year={2011}, pages={322–325} }' chicago: 'Häberlen, M., B. Murphy, B. Stritzker, and Jörg Lindner. “Relaxation of a Strained 3C-SiC(111) Thin Film on Silicon by He+ and O+ Ion Beam Defect Engineering.” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 272 (2011): 322–25. https://doi.org/10.1016/j.nimb.2011.01.092.' ieee: 'M. Häberlen, B. Murphy, B. Stritzker, and J. Lindner, “Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering,” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 272, pp. 322–325, 2011.' mla: 'Häberlen, M., et al. “Relaxation of a Strained 3C-SiC(111) Thin Film on Silicon by He+ and O+ Ion Beam Defect Engineering.” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 272, Elsevier BV, 2011, pp. 322–25, doi:10.1016/j.nimb.2011.01.092.' short: 'M. Häberlen, B. Murphy, B. Stritzker, J. Lindner, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 272 (2011) 322–325.' date_created: 2018-08-27T12:27:23Z date_updated: 2022-01-06T07:00:23Z ddc: - '530' department: - _id: '15' - _id: '286' doi: 10.1016/j.nimb.2011.01.092 file: - access_level: closed content_type: application/pdf creator: hclaudia date_created: 2018-08-27T12:29:34Z date_updated: 2018-08-27T12:29:34Z file_id: '4141' file_name: Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering.pdf file_size: 772335 relation: main_file success: 1 file_date_updated: 2018-08-27T12:29:34Z has_accepted_license: '1' intvolume: ' 272' language: - iso: eng page: 322-325 publication: 'Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms' publication_identifier: issn: - 0168-583X publication_status: published publisher: Elsevier BV status: public title: Relaxation of a strained 3C-SiC(111) thin film on silicon by He+ and O+ ion beam defect engineering type: journal_article user_id: '55706' volume: 272 year: '2011' ...