--- _id: '48063' abstract: - lang: eng text: "Brainwaves have demonstrated to be unique enough across individuals to be useful as biometrics. They also provide promising advantages over traditional means of authentication, such as resistance to external observability, revocability, and intrinsic liveness detection. However, most of the research so far has been conducted with expensive, bulky, medical-grade helmets, which offer limited applicability for everyday usage. With the aim to bring brainwave authentication and its benefits closer to real world deployment, we investigate brain biometrics with consumer devices. We conduct a comprehensive measurement experiment and user study that compare five authentication tasks on a user sample up to 10 times larger than those from previous studies, introducing three novel techniques based on cognitive semantic processing. Furthermore, we apply our analysis on high-quality open brainwave data obtained with a medical-grade headset, to assess the differences. We investigate both the performance, security, and usability of the different options and use this evidence to elicit design and research recommendations. Our results show that it is possible to achieve Equal Error Rates as low as 7.2% (a reduction between 68–72% with respect to existing approaches) based on brain responses to images with current inexpensive technology. We show that the common practice of testing authentication systems only with known attacker data is unrealistic and may lead to overly optimistic evaluations. With regard to adoption, users call for simpler devices, faster authentication, and better privacy.\r\n " author: - first_name: Patricia full_name: Arias-Cabarcos, Patricia last_name: Arias-Cabarcos - first_name: Matin full_name: Fallahi, Matin last_name: Fallahi - first_name: Thilo full_name: Habrich, Thilo last_name: Habrich - first_name: Karen full_name: Schulze, Karen last_name: Schulze - first_name: Christian full_name: Becker, Christian last_name: Becker - first_name: Thorsten full_name: Strufe, Thorsten last_name: Strufe citation: ama: Arias-Cabarcos P, Fallahi M, Habrich T, Schulze K, Becker C, Strufe T. Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices. ACM Transactions on Privacy and Security. 2023;26(3):1-36. doi:10.1145/3579356 apa: Arias-Cabarcos, P., Fallahi, M., Habrich, T., Schulze, K., Becker, C., & Strufe, T. (2023). Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices. ACM Transactions on Privacy and Security, 26(3), 1–36. https://doi.org/10.1145/3579356 bibtex: '@article{Arias-Cabarcos_Fallahi_Habrich_Schulze_Becker_Strufe_2023, title={Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices}, volume={26}, DOI={10.1145/3579356}, number={3}, journal={ACM Transactions on Privacy and Security}, publisher={Association for Computing Machinery (ACM)}, author={Arias-Cabarcos, Patricia and Fallahi, Matin and Habrich, Thilo and Schulze, Karen and Becker, Christian and Strufe, Thorsten}, year={2023}, pages={1–36} }' chicago: 'Arias-Cabarcos, Patricia, Matin Fallahi, Thilo Habrich, Karen Schulze, Christian Becker, and Thorsten Strufe. “Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices.” ACM Transactions on Privacy and Security 26, no. 3 (2023): 1–36. https://doi.org/10.1145/3579356.' ieee: 'P. Arias-Cabarcos, M. Fallahi, T. Habrich, K. Schulze, C. Becker, and T. Strufe, “Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices,” ACM Transactions on Privacy and Security, vol. 26, no. 3, pp. 1–36, 2023, doi: 10.1145/3579356.' mla: Arias-Cabarcos, Patricia, et al. “Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices.” ACM Transactions on Privacy and Security, vol. 26, no. 3, Association for Computing Machinery (ACM), 2023, pp. 1–36, doi:10.1145/3579356. short: P. Arias-Cabarcos, M. Fallahi, T. Habrich, K. Schulze, C. Becker, T. Strufe, ACM Transactions on Privacy and Security 26 (2023) 1–36. date_created: 2023-10-14T12:11:55Z date_updated: 2023-10-14T12:12:42Z doi: 10.1145/3579356 intvolume: ' 26' issue: '3' keyword: - Safety - Risk - Reliability and Quality - General Computer Science language: - iso: eng page: 1-36 publication: ACM Transactions on Privacy and Security publication_identifier: issn: - 2471-2566 - 2471-2574 publication_status: published publisher: Association for Computing Machinery (ACM) status: public title: Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices type: journal_article user_id: '92804' volume: 26 year: '2023' ... --- _id: '48058' author: - first_name: Fabian full_name: Winkel, Fabian last_name: Winkel - first_name: Johannes full_name: Deuse-Kleinsteuber, Johannes last_name: Deuse-Kleinsteuber - first_name: Joachim full_name: Böcker, Joachim id: '66' last_name: Böcker orcid: 0000-0002-8480-7295 citation: ama: Winkel F, Deuse-Kleinsteuber J, Böcker J. Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning. IEEE Transactions on Reliability. Published online 2023:1-14. doi:10.1109/tr.2023.3255786 apa: Winkel, F., Deuse-Kleinsteuber, J., & Böcker, J. (2023). Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning. IEEE Transactions on Reliability, 1–14. https://doi.org/10.1109/tr.2023.3255786 bibtex: '@article{Winkel_Deuse-Kleinsteuber_Böcker_2023, title={Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning}, DOI={10.1109/tr.2023.3255786}, journal={IEEE Transactions on Reliability}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Winkel, Fabian and Deuse-Kleinsteuber, Johannes and Böcker, Joachim}, year={2023}, pages={1–14} }' chicago: Winkel, Fabian, Johannes Deuse-Kleinsteuber, and Joachim Böcker. “Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning.” IEEE Transactions on Reliability, 2023, 1–14. https://doi.org/10.1109/tr.2023.3255786. ieee: 'F. Winkel, J. Deuse-Kleinsteuber, and J. Böcker, “Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning,” IEEE Transactions on Reliability, pp. 1–14, 2023, doi: 10.1109/tr.2023.3255786.' mla: Winkel, Fabian, et al. “Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning.” IEEE Transactions on Reliability, Institute of Electrical and Electronics Engineers (IEEE), 2023, pp. 1–14, doi:10.1109/tr.2023.3255786. short: F. Winkel, J. Deuse-Kleinsteuber, J. Böcker, IEEE Transactions on Reliability (2023) 1–14. date_created: 2023-10-14T12:01:41Z date_updated: 2023-10-14T12:16:48Z department: - _id: '52' doi: 10.1109/tr.2023.3255786 keyword: - Electrical and Electronic Engineering - Safety - Risk - Reliability and Quality language: - iso: eng page: 1-14 publication: IEEE Transactions on Reliability publication_identifier: issn: - 0018-9529 - 1558-1721 publication_status: published publisher: Institute of Electrical and Electronics Engineers (IEEE) status: public title: Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning type: journal_article user_id: '66' year: '2023' ... --- _id: '31844' abstract: - lang: eng text: "Encrypting data before sending it to the cloud ensures data confidentiality but requires the cloud to compute on encrypted data. Trusted execution environments, such as Intel SGX enclaves, promise to provide a secure environment in which data can be decrypted and then processed. However, vulnerabilities in the executed program give attackers ample opportunities to execute arbitrary code inside the enclave. This code can modify the dataflow of the program and leak secrets via SGX side channels. Fully homomorphic encryption would be an alternative to compute on encrypted data without data leaks. However, due to its high computational complexity, its applicability to general-purpose computing remains limited. Researchers have made several proposals for transforming programs to perform encrypted computations on less powerful encryption schemes. Yet current approaches do not support programs making control-flow decisions based on encrypted data.\r\n \r\n \ We introduce the concept of\r\n dataflow authentication\r\n \ (DFAuth) to enable such programs. DFAuth prevents an adversary from arbitrarily deviating from the dataflow of a program. Our technique hence offers protections against the side-channel attacks described previously. We implemented two flavors of DFAuth, a Java bytecode-to-bytecode compiler, and an SGX enclave running a small and program-independent trusted code base. We applied DFAuth to a neural network performing machine learning on sensitive medical data and a smart charging scheduler for electric vehicles. Our transformation yields a neural network with encrypted weights, which can be evaluated on encrypted inputs in\r\n \r\n \\( 12.55 \\,\\mathrm{m}\\mathrm{s} \\)\r\n \ \r\n . Our protected scheduler is capable of updating the encrypted charging plan in approximately 1.06 seconds.\r\n \ " author: - first_name: Andreas full_name: Fischer, Andreas last_name: Fischer - first_name: Benny full_name: Fuhry, Benny last_name: Fuhry - first_name: Jörn full_name: Kußmaul, Jörn last_name: Kußmaul - first_name: Jonas full_name: Janneck, Jonas last_name: Janneck - first_name: Florian full_name: Kerschbaum, Florian last_name: Kerschbaum - first_name: Eric full_name: Bodden, Eric id: '59256' last_name: Bodden orcid: 0000-0003-3470-3647 citation: ama: Fischer A, Fuhry B, Kußmaul J, Janneck J, Kerschbaum F, Bodden E. Computation on Encrypted Data Using Dataflow Authentication. ACM Transactions on Privacy and Security. 2022;25(3):1-36. doi:10.1145/3513005 apa: Fischer, A., Fuhry, B., Kußmaul, J., Janneck, J., Kerschbaum, F., & Bodden, E. (2022). Computation on Encrypted Data Using Dataflow Authentication. ACM Transactions on Privacy and Security, 25(3), 1–36. https://doi.org/10.1145/3513005 bibtex: '@article{Fischer_Fuhry_Kußmaul_Janneck_Kerschbaum_Bodden_2022, title={Computation on Encrypted Data Using Dataflow Authentication}, volume={25}, DOI={10.1145/3513005}, number={3}, journal={ACM Transactions on Privacy and Security}, publisher={Association for Computing Machinery (ACM)}, author={Fischer, Andreas and Fuhry, Benny and Kußmaul, Jörn and Janneck, Jonas and Kerschbaum, Florian and Bodden, Eric}, year={2022}, pages={1–36} }' chicago: 'Fischer, Andreas, Benny Fuhry, Jörn Kußmaul, Jonas Janneck, Florian Kerschbaum, and Eric Bodden. “Computation on Encrypted Data Using Dataflow Authentication.” ACM Transactions on Privacy and Security 25, no. 3 (2022): 1–36. https://doi.org/10.1145/3513005.' ieee: 'A. Fischer, B. Fuhry, J. Kußmaul, J. Janneck, F. Kerschbaum, and E. Bodden, “Computation on Encrypted Data Using Dataflow Authentication,” ACM Transactions on Privacy and Security, vol. 25, no. 3, pp. 1–36, 2022, doi: 10.1145/3513005.' mla: Fischer, Andreas, et al. “Computation on Encrypted Data Using Dataflow Authentication.” ACM Transactions on Privacy and Security, vol. 25, no. 3, Association for Computing Machinery (ACM), 2022, pp. 1–36, doi:10.1145/3513005. short: A. Fischer, B. Fuhry, J. Kußmaul, J. Janneck, F. Kerschbaum, E. Bodden, ACM Transactions on Privacy and Security 25 (2022) 1–36. date_created: 2022-06-09T10:28:03Z date_updated: 2022-06-09T10:29:19Z department: - _id: '76' doi: 10.1145/3513005 intvolume: ' 25' issue: '3' keyword: - Safety - Risk - Reliability and Quality - General Computer Science language: - iso: eng page: 1-36 publication: ACM Transactions on Privacy and Security publication_identifier: issn: - 2471-2566 - 2471-2574 publication_status: published publisher: Association for Computing Machinery (ACM) status: public title: Computation on Encrypted Data Using Dataflow Authentication type: journal_article user_id: '15249' volume: 25 year: '2022' ... --- _id: '9994' abstract: - lang: eng text: Reliability-adaptive systems allow an adaptation of system behavior based on current system reliability. They can extend their lifetime at the cost of lowered performance or vice versa. This can be used to adapt failure behavior according to a maintenance plan, thus increasing availability while using up system capability fully. To facilitate setup, a control algorithm independent of a degradation model is desired. A closed loop control technique for reliability based on a health index, a measure for system degradation, is introduced. It uses self-optimization as means to implement behavior adaptation. This is based on selecting the priorities of objectives that the system pursues. Possible working points are computed beforehand using model-based multiobjective optimization techniques. The controller selects the priorities of objectives and this way balances reliability and performance. As exemplary application, an automatically actuated single plate dry clutch is introduced. The entire reliability control is setup and lifetime experiments are conducted. Results show that the variance of time to failure is reduced greatly, making the failure behavior more predictable. At the same time, the desired usable lifetime can be extended at the cost of system performance to allow for changed maintenance intervals. Together, these possibilities allow for greater system usage and better planning of maintenance. author: - first_name: Tobias full_name: Meyer, Tobias last_name: Meyer citation: ama: Meyer T. Optimization-Based Reliability Control of Mechatronic Systems. Shaker; 2018. apa: Meyer, T. (2018). Optimization-based reliability control of mechatronic systems. Shaker. bibtex: '@book{Meyer_2018, title={Optimization-based reliability control of mechatronic systems}, publisher={Shaker}, author={Meyer, Tobias}, year={2018} }' chicago: Meyer, Tobias. Optimization-Based Reliability Control of Mechatronic Systems. Shaker, 2018. ieee: T. Meyer, Optimization-based reliability control of mechatronic systems. Shaker, 2018. mla: Meyer, Tobias. Optimization-Based Reliability Control of Mechatronic Systems. Shaker, 2018. short: T. Meyer, Optimization-Based Reliability Control of Mechatronic Systems, Shaker, 2018. date_created: 2019-05-27T10:21:17Z date_updated: 2023-09-15T12:26:09Z department: - _id: '151' keyword: - dependability - reliability - behavior adaptation - self-optimization - multiobjective optimization - optimal control - automotive drivetrain - clutch system - reliability-adaptive system language: - iso: eng publisher: Shaker status: public title: Optimization-based reliability control of mechatronic systems type: dissertation user_id: '210' year: '2018' ... --- _id: '9974' abstract: - lang: eng text: The integrated modeling of behavior and reliability in system development delivers a model-based approach for reliability investigation by taking into account the dynamic system behavior as well as the system architecture at different phases of the development process. This approach features an automated synthesis of a reliability model out of a behavior model enabling for the closed loop modeling of degradation of the system and its (dynamic) behavior. The approach is integrated into the development process following Systems Engineering. It is based on standard models used in model-based development methodologies i.e. SysML or Matlab/Simulink. In addition to the theoretical description of the necessary steps the procedure is validated by an application example at two stages of the development process. author: - first_name: Julian full_name: Hentze, Julian id: '13342' last_name: Hentze - first_name: Thorben full_name: Kaul, Thorben id: '14802' last_name: Kaul - first_name: Iris full_name: Grässler, Iris last_name: Grässler - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Hentze J, Kaul T, Grässler I, Sextro W. Integrated modeling og behavior and reliability in system development. In: ICED17, 21st International Conference on Enginieering Design. ; 2017:385-394.' apa: Hentze, J., Kaul, T., Grässler, I., & Sextro, W. (2017). Integrated modeling og behavior and reliability in system development. In ICED17, 21st International conference on enginieering design (pp. 385–394). bibtex: '@inproceedings{Hentze_Kaul_Grässler_Sextro_2017, title={Integrated modeling og behavior and reliability in system development}, booktitle={ICED17, 21st International conference on enginieering design}, author={Hentze, Julian and Kaul, Thorben and Grässler, Iris and Sextro, Walter}, year={2017}, pages={385–394} }' chicago: Hentze, Julian, Thorben Kaul, Iris Grässler, and Walter Sextro. “Integrated Modeling Og Behavior and Reliability in System Development.” In ICED17, 21st International Conference on Enginieering Design, 385–94, 2017. ieee: J. Hentze, T. Kaul, I. Grässler, and W. Sextro, “Integrated modeling og behavior and reliability in system development,” in ICED17, 21st International conference on enginieering design, 2017, pp. 385–394. mla: Hentze, Julian, et al. “Integrated Modeling Og Behavior and Reliability in System Development.” ICED17, 21st International Conference on Enginieering Design, 2017, pp. 385–94. short: 'J. Hentze, T. Kaul, I. Grässler, W. Sextro, in: ICED17, 21st International Conference on Enginieering Design, 2017, pp. 385–394.' date_created: 2019-05-27T09:35:48Z date_updated: 2019-09-30T08:04:38Z department: - _id: '151' keyword: - Design for X (DfX) - Product modelling / models - Robust design - Systems Engineering (SE) - Reliability language: - iso: eng page: 385-394 publication: ICED17, 21st International conference on enginieering design quality_controlled: '1' status: public title: Integrated modeling og behavior and reliability in system development type: conference user_id: '55222' year: '2017' ... --- _id: '9976' 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. author: - first_name: Thorben full_name: Kaul, Thorben id: '14802' last_name: Kaul - first_name: Tobias full_name: Meyer, Tobias last_name: Meyer - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: Kaul T, Meyer T, Sextro W. Formulation of reliability-related objective functions for design of intelligent mechatronic systems. SAGE Journals. 2017;Vol. 231(4):390-399. doi:10.1177/1748006X17709376 apa: Kaul, T., Meyer, T., & Sextro, W. (2017). Formulation of reliability-related objective functions for design of intelligent mechatronic systems. SAGE Journals, Vol. 231(4), 390–399. https://doi.org/10.1177/1748006X17709376 bibtex: '@article{Kaul_Meyer_Sextro_2017, title={Formulation of reliability-related objective functions for design of intelligent mechatronic systems}, volume={Vol. 231(4)}, DOI={10.1177/1748006X17709376}, journal={SAGE Journals}, author={Kaul, Thorben and Meyer, Tobias and Sextro, Walter}, year={2017}, pages={390–399} }' chicago: 'Kaul, Thorben, Tobias Meyer, and Walter Sextro. “Formulation of Reliability-Related Objective Functions for Design of Intelligent Mechatronic Systems.” SAGE Journals Vol. 231(4) (2017): 390–99. https://doi.org/10.1177/1748006X17709376.' ieee: T. Kaul, T. Meyer, and W. Sextro, “Formulation of reliability-related objective functions for design of intelligent mechatronic systems,” SAGE Journals, vol. Vol. 231(4), pp. 390–399, 2017. mla: Kaul, Thorben, et al. “Formulation of Reliability-Related Objective Functions for Design of Intelligent Mechatronic Systems.” SAGE Journals, vol. Vol. 231(4), 2017, pp. 390–99, doi:10.1177/1748006X17709376. short: T. Kaul, T. Meyer, W. Sextro, SAGE Journals Vol. 231(4) (2017) 390–399. date_created: 2019-05-27T09:37:46Z date_updated: 2019-09-16T10:20:49Z department: - _id: '151' doi: 10.1177/1748006X17709376 keyword: - Integrated model - reliability - system behavior - Bayesian network - multiobjective optimization language: - iso: eng page: 390 - 399 publication: SAGE Journals quality_controlled: '1' status: public title: Formulation of reliability-related objective functions for design of intelligent mechatronic systems type: journal_article user_id: '55222' volume: Vol. 231(4) year: '2017' ... --- _id: '9949' 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. author: - first_name: Tobias full_name: Meyer, Tobias last_name: Meyer - first_name: Thorben full_name: Kaul, Thorben id: '14802' last_name: Kaul - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Meyer T, Kaul T, Sextro W. Advantages of reliability-adaptive system operation for maintenance planning. In: Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes. ; 2015:940-945. doi:10.1016/j.ifacol.2015.09.647' apa: Meyer, T., Kaul, T., & Sextro, W. (2015). Advantages of reliability-adaptive system operation for maintenance planning. In Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes (pp. 940–945). https://doi.org/10.1016/j.ifacol.2015.09.647 bibtex: '@inproceedings{Meyer_Kaul_Sextro_2015, title={Advantages of reliability-adaptive system operation for maintenance planning}, DOI={10.1016/j.ifacol.2015.09.647}, 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} }' chicago: Meyer, Tobias, Thorben Kaul, and Walter Sextro. “Advantages of Reliability-Adaptive System Operation for Maintenance Planning.” In Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, 940–45, 2015. https://doi.org/10.1016/j.ifacol.2015.09.647. ieee: T. Meyer, T. Kaul, and W. Sextro, “Advantages of reliability-adaptive system operation for maintenance planning,” in Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, 2015, pp. 940–945. mla: Meyer, Tobias, et al. “Advantages of Reliability-Adaptive System Operation for Maintenance Planning.” Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, 2015, pp. 940–45, doi:10.1016/j.ifacol.2015.09.647. 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.' date_created: 2019-05-27T08:29:40Z date_updated: 2019-09-16T10:43:42Z department: - _id: '151' doi: 10.1016/j.ifacol.2015.09.647 keyword: - Adaptive systems - Reliability analysis - Availability - Adaptive control - Maintenance - Self-optimizing systems - Self-optimizing control - Stochastic Petri-nets language: - iso: eng page: 940-945 publication: Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes quality_controlled: '1' status: public title: Advantages of reliability-adaptive system operation for maintenance planning type: conference user_id: '55222' year: '2015' ... --- _id: '9868' abstract: - lang: eng text: In order to increase mechanical strength, heat dissipation and ampacity and to decrease failure through fatigue fracture, wedge copper wire bonding is being introduced as a standard interconnection method for mass production. To achieve the same process stability when using copper wire instead of aluminum wire a profound understanding of the bonding process is needed. Due to the higher hardness of copper compared to aluminum wire it is more difficult to approach the surfaces of wire and substrate to a level where van der Waals forces are able to arise between atoms. Also, enough friction energy referred to the total contact area has to be generated to activate the surfaces. Therefore, a friction model is used to simulate the joining process. This model calculates the resulting energy of partial areas in the contact surface and provides information about the adhesion process of each area. The focus here is on the arising of micro joints in the contact area depending on the location in the contact and time. To validate the model, different touchdown forces are used to vary the initial contact areas of wire and substrate. Additionally, a piezoelectric tri-axial force sensor is built up to identify the known phases of pre-deforming, cleaning, adhering and diffusing for the real bonding process to map with the model. Test substrates as DBC and copper plate are used to show the different formations of a wedge bond connection due to hardness and reaction propensity. The experiments were done by using 500 $\mu$m copper wire and a standard V-groove tool. author: - first_name: Simon full_name: Althoff, Simon last_name: Althoff - first_name: Jan full_name: Neuhaus, Jan last_name: Neuhaus - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Althoff S, Neuhaus J, Hemsel T, Sextro W. Improving the bond quality of copper wire bonds using a friction model approach. In: Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th. ; 2014:1549-1555. doi:10.1109/ECTC.2014.6897500' apa: Althoff, S., Neuhaus, J., Hemsel, T., & Sextro, W. (2014). Improving the bond quality of copper wire bonds using a friction model approach. In Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th (pp. 1549–1555). https://doi.org/10.1109/ECTC.2014.6897500 bibtex: '@inproceedings{Althoff_Neuhaus_Hemsel_Sextro_2014, title={Improving the bond quality of copper wire bonds using a friction model approach}, DOI={10.1109/ECTC.2014.6897500}, booktitle={Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th}, author={Althoff, Simon and Neuhaus, Jan and Hemsel, Tobias and Sextro, Walter}, year={2014}, pages={1549–1555} }' chicago: Althoff, Simon, Jan Neuhaus, Tobias Hemsel, and Walter Sextro. “Improving the Bond Quality of Copper Wire Bonds Using a Friction Model Approach.” In Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th, 1549–55, 2014. https://doi.org/10.1109/ECTC.2014.6897500. ieee: S. Althoff, J. Neuhaus, T. Hemsel, and W. Sextro, “Improving the bond quality of copper wire bonds using a friction model approach,” in Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th, 2014, pp. 1549–1555. mla: Althoff, Simon, et al. “Improving the Bond Quality of Copper Wire Bonds Using a Friction Model Approach.” Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th, 2014, pp. 1549–55, doi:10.1109/ECTC.2014.6897500. short: 'S. Althoff, J. Neuhaus, T. Hemsel, W. Sextro, in: Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th, 2014, pp. 1549–1555.' date_created: 2019-05-20T12:11:44Z date_updated: 2019-09-16T10:57:58Z department: - _id: '151' doi: 10.1109/ECTC.2014.6897500 keyword: - adhesion - circuit reliability - deformation - diffusion - fatigue cracks - friction - interconnections - lead bonding - van der Waals forces - Cu - adhering process - adhesion process - ampacity improvement - bond quality improvement - cleaning process - diffusing process - fatigue fracture failure - friction energy - friction model - heat dissipation - mechanical strength - piezoelectric triaxial force sensor - predeforming process - size 500 mum - total contact area - van der Waals forces - wedge copper wire bonding - Bonding - Copper - Finite element analysis - Force - Friction - Substrates - Wires language: - iso: eng page: 1549-1555 publication: Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th quality_controlled: '1' status: public title: Improving the bond quality of copper wire bonds using a friction model approach type: conference user_id: '55222' year: '2014' ... --- _id: '9874' author: - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita - 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: Hemsel T, Bornmann P, Morita T, Sondermann-Wölke C, Sextro W. Reliability analysis of ultrasonic power transducers. Archive of Applied Mechanics. 2014:1-7. doi:10.1007/s00419-014-0965-4 apa: Hemsel, T., Bornmann, P., Morita, T., Sondermann-Wölke, C., & Sextro, W. (2014). Reliability analysis of ultrasonic power transducers. Archive of Applied Mechanics, 1–7. https://doi.org/10.1007/s00419-014-0965-4 bibtex: '@article{Hemsel_Bornmann_Morita_Sondermann-Wölke_Sextro_2014, title={Reliability analysis of ultrasonic power transducers}, DOI={10.1007/s00419-014-0965-4}, journal={Archive of Applied Mechanics}, publisher={Springer Berlin Heidelberg}, author={Hemsel, Tobias and Bornmann, Peter and Morita, Takeshi and Sondermann-Wölke, Christoph and Sextro, Walter}, year={2014}, pages={1–7} }' chicago: Hemsel, Tobias, Peter Bornmann, Takeshi Morita, Christoph Sondermann-Wölke, and Walter Sextro. “Reliability Analysis of Ultrasonic Power Transducers.” Archive of Applied Mechanics, 2014, 1–7. https://doi.org/10.1007/s00419-014-0965-4. ieee: T. Hemsel, P. Bornmann, T. Morita, C. Sondermann-Wölke, and W. Sextro, “Reliability analysis of ultrasonic power transducers,” Archive of Applied Mechanics, pp. 1–7, 2014. mla: Hemsel, Tobias, et al. “Reliability Analysis of Ultrasonic Power Transducers.” Archive of Applied Mechanics, Springer Berlin Heidelberg, 2014, pp. 1–7, doi:10.1007/s00419-014-0965-4. short: T. Hemsel, P. Bornmann, T. Morita, C. Sondermann-Wölke, W. Sextro, Archive of Applied Mechanics (2014) 1–7. date_created: 2019-05-20T13:01:25Z date_updated: 2019-09-16T10:57:23Z department: - _id: '151' doi: 10.1007/s00419-014-0965-4 keyword: - Reliability - Ultrasonic power transducers - FMEA language: - iso: eng page: 1-7 publication: Archive of Applied Mechanics publication_identifier: issn: - 0939-1533 publisher: Springer Berlin Heidelberg quality_controlled: '1' status: public title: Reliability analysis of ultrasonic power transducers type: journal_article user_id: '55222' year: '2014' ... --- _id: '9884' abstract: - lang: eng text: So-called reliability adaptive systems are able to adapt their system behavior based on the current reliability of the system. This allows them to react to changed operating conditions or faults within the system that change the degradation behavior. To implement such reliability adaptation, self-optimization can be used. A self-optimizing system pursues objectives, of which the priorities can be changed at runtime, in turn changing the system behavior. When including system reliability as an objective of the system, it becomes possible to change the system based on the current reliability as well. This capability can be used to control the reliability of the system throughout its operation period in order to achieve a pre-defined or user-selectable system lifetime. This way, optimal planning of maintenance intervals is possible while also using the system capabilities to their full extent. Our proposed control system makes it possible to react to changed degradation behavior by selecting objectives of the self-optimizing system and in turn changing the operating parameters in a closed loop. A two-stage controller is designed which is used to select the currently required priorities of the objectives in order to fulfill the desired usable lifetime. Investigations using a model of an automotive clutch system serve to demonstrate the feasibility of our controller. It is shown that the desired lifetime can be achieved reliably. author: - first_name: Tobias full_name: Meyer , Tobias last_name: 'Meyer ' - first_name: Walter full_name: Sextro, Walter last_name: Sextro citation: ama: 'Meyer T, Sextro W. Closed-loop Control System for the Reliability of Intelligent Mechatronic Systems. In: Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014. Vol 5. ; 2014.' apa: Meyer , T., & Sextro, W. (2014). Closed-loop Control System for the Reliability of Intelligent Mechatronic Systems. In Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014 (Vol. 5). bibtex: '@inproceedings{Meyer _Sextro_2014, title={Closed-loop Control System for the Reliability of Intelligent Mechatronic Systems}, volume={5}, booktitle={Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014}, author={Meyer , Tobias and Sextro, Walter}, year={2014} }' chicago: Meyer , Tobias, and Walter Sextro. “Closed-Loop Control System for the Reliability of Intelligent Mechatronic Systems.” In Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014, Vol. 5, 2014. ieee: T. Meyer and W. Sextro, “Closed-loop Control System for the Reliability of Intelligent Mechatronic Systems,” in Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014, 2014, vol. 5. mla: Meyer , Tobias, and Walter Sextro. “Closed-Loop Control System for the Reliability of Intelligent Mechatronic Systems.” Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014, vol. 5, 2014. short: 'T. Meyer , W. Sextro, in: Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014, 2014.' date_created: 2019-05-20T13:18:20Z date_updated: 2019-05-20T13:19:08Z department: - _id: '151' intvolume: ' 5' keyword: - self-optimization reliability adaptive language: - iso: eng publication: Proceedings of the Second European Conference of the Prognostics and Health Management Society 2014 status: public title: Closed-loop Control System for the Reliability of Intelligent Mechatronic Systems type: conference user_id: '55222' volume: 5 year: '2014' ... --- _id: '39483' author: - first_name: F.F. full_name: Vidor, F.F. last_name: Vidor - first_name: G.I. full_name: Wirth, G.I. last_name: Wirth - first_name: Ulrich full_name: Hilleringmann, Ulrich id: '20179' last_name: Hilleringmann citation: ama: Vidor FF, Wirth GI, Hilleringmann U. Low temperature fabrication of a ZnO nanoparticle thin-film transistor suitable for flexible electronics. Microelectronics Reliability. 2014;54(12):2760-2765. doi:10.1016/j.microrel.2014.07.147 apa: Vidor, F. F., Wirth, G. I., & Hilleringmann, U. (2014). Low temperature fabrication of a ZnO nanoparticle thin-film transistor suitable for flexible electronics. Microelectronics Reliability, 54(12), 2760–2765. https://doi.org/10.1016/j.microrel.2014.07.147 bibtex: '@article{Vidor_Wirth_Hilleringmann_2014, title={Low temperature fabrication of a ZnO nanoparticle thin-film transistor suitable for flexible electronics}, volume={54}, DOI={10.1016/j.microrel.2014.07.147}, number={12}, journal={Microelectronics Reliability}, publisher={Elsevier BV}, author={Vidor, F.F. and Wirth, G.I. and Hilleringmann, Ulrich}, year={2014}, pages={2760–2765} }' chicago: 'Vidor, F.F., G.I. Wirth, and Ulrich Hilleringmann. “Low Temperature Fabrication of a ZnO Nanoparticle Thin-Film Transistor Suitable for Flexible Electronics.” Microelectronics Reliability 54, no. 12 (2014): 2760–65. https://doi.org/10.1016/j.microrel.2014.07.147.' ieee: 'F. F. Vidor, G. I. Wirth, and U. Hilleringmann, “Low temperature fabrication of a ZnO nanoparticle thin-film transistor suitable for flexible electronics,” Microelectronics Reliability, vol. 54, no. 12, pp. 2760–2765, 2014, doi: 10.1016/j.microrel.2014.07.147.' mla: Vidor, F. F., et al. “Low Temperature Fabrication of a ZnO Nanoparticle Thin-Film Transistor Suitable for Flexible Electronics.” Microelectronics Reliability, vol. 54, no. 12, Elsevier BV, 2014, pp. 2760–65, doi:10.1016/j.microrel.2014.07.147. short: F.F. Vidor, G.I. Wirth, U. Hilleringmann, Microelectronics Reliability 54 (2014) 2760–2765. date_created: 2023-01-24T11:25:42Z date_updated: 2023-03-22T10:15:06Z department: - _id: '59' doi: 10.1016/j.microrel.2014.07.147 intvolume: ' 54' issue: '12' keyword: - Electrical and Electronic Engineering - Surfaces - Coatings and Films - Safety - Risk - Reliability and Quality - Condensed Matter Physics - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng page: 2760-2765 publication: Microelectronics Reliability publication_identifier: issn: - 0026-2714 publication_status: published publisher: Elsevier BV status: public title: Low temperature fabrication of a ZnO nanoparticle thin-film transistor suitable for flexible electronics type: journal_article user_id: '20179' volume: 54 year: '2014' ... --- _id: '10620' author: - first_name: Jahanzeb full_name: Anwer, Jahanzeb last_name: Anwer - first_name: Sebastian full_name: Meisner, Sebastian last_name: Meisner - first_name: Marco full_name: Platzner, Marco id: '398' last_name: Platzner citation: ama: 'Anwer J, Meisner S, Platzner M. Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime. In: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On. ; 2013:1-6. doi:10.1109/ReConFig.2013.6732280' apa: 'Anwer, J., Meisner, S., & Platzner, M. (2013). Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime. In Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on (pp. 1–6). https://doi.org/10.1109/ReConFig.2013.6732280' bibtex: '@inproceedings{Anwer_Meisner_Platzner_2013, title={Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime}, DOI={10.1109/ReConFig.2013.6732280}, booktitle={Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on}, author={Anwer, Jahanzeb and Meisner, Sebastian and Platzner, Marco}, year={2013}, pages={1–6} }' chicago: 'Anwer, Jahanzeb, Sebastian Meisner, and Marco Platzner. “Dynamic Reliability Management: Reconfiguring Reliability-Levels of Hardware Designs at Runtime.” In Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 1–6, 2013. https://doi.org/10.1109/ReConFig.2013.6732280.' ieee: 'J. Anwer, S. Meisner, and M. Platzner, “Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime,” in Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on, 2013, pp. 1–6.' mla: 'Anwer, Jahanzeb, et al. “Dynamic Reliability Management: Reconfiguring Reliability-Levels of Hardware Designs at Runtime.” Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 2013, pp. 1–6, doi:10.1109/ReConFig.2013.6732280.' short: 'J. Anwer, S. Meisner, M. Platzner, in: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 2013, pp. 1–6.' date_created: 2019-07-10T09:32:57Z date_updated: 2022-01-06T06:50:48Z department: - _id: '78' doi: 10.1109/ReConFig.2013.6732280 keyword: - fault tolerant computing - field programmable gate arrays - logic design - reliability - BYU-LANL tool - DRM tool flow - FPGA based hardware designs - avionic application - device technologies - dynamic reliability management - fault-tolerant operation - hardware designs - reconfiguring reliability levels - space applications - Field programmable gate arrays - Hardware - Redundancy - Reliability engineering - Runtime - Tunneling magnetoresistance language: - iso: eng page: 1-6 publication: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on status: public title: 'Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime' type: conference user_id: '3118' year: '2013' ... --- _id: '9783' abstract: - lang: eng text: To optimize the ultrasound irradiation for cavitation based ultrasound applications like sonochemistry or ultrasound cleaning, the correlation between cavitation intensity and the resulting effect on the process is of interest. Furthermore, changing conditions like temperature and pressure result in varying acoustic properties of the liquid. That might necessitate an adaption of the ultrasound irradiation. To detect such changes during operation, process monitoring is desired. Labor intensive processes, that might be carried out for several hours, also require process monitoring to increase their reliability by detection of changes or malfunctions during operation. In some applications cavitation detection and monitoring can be achieved by the application of sensors in the sound field. Though the application of sensors is possible, this necessitates modifications on the system and the sensor might disturb the sound field. In other applications harsh, process conditions prohibit the application of sensors in the sound field. Therefore alternative techniques for cavitation detection and monitoring are desired. The applicability of an external microphone and a self-sensing ultrasound transducer for cavitation detection were experimentally investigated. Both methods were found to be suitable and easily applicable. author: - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Takafumi full_name: Maeda, Takafumi last_name: Maeda - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: 'Bornmann P, Hemsel T, Sextro W, Maeda T, Morita T. Non-perturbing cavitation detection / monitoring in sonochemical reactors. In: Ultrasonics Symposium (IUS), 2012 IEEE International. ; 2012:1141-1144. doi:10.1109/ULTSYM.2012.0284' apa: Bornmann, P., Hemsel, T., Sextro, W., Maeda, T., & Morita, T. (2012). Non-perturbing cavitation detection / monitoring in sonochemical reactors. In Ultrasonics Symposium (IUS), 2012 IEEE International (pp. 1141–1144). https://doi.org/10.1109/ULTSYM.2012.0284 bibtex: '@inproceedings{Bornmann_Hemsel_Sextro_Maeda_Morita_2012, title={Non-perturbing cavitation detection / monitoring in sonochemical reactors}, DOI={10.1109/ULTSYM.2012.0284}, booktitle={Ultrasonics Symposium (IUS), 2012 IEEE International}, author={Bornmann, Peter and Hemsel, Tobias and Sextro, Walter and Maeda, Takafumi and Morita, Takeshi}, year={2012}, pages={1141–1144} }' chicago: Bornmann, Peter, Tobias Hemsel, Walter Sextro, Takafumi Maeda, and Takeshi Morita. “Non-Perturbing Cavitation Detection / Monitoring in Sonochemical Reactors.” In Ultrasonics Symposium (IUS), 2012 IEEE International, 1141–44, 2012. https://doi.org/10.1109/ULTSYM.2012.0284. ieee: P. Bornmann, T. Hemsel, W. Sextro, T. Maeda, and T. Morita, “Non-perturbing cavitation detection / monitoring in sonochemical reactors,” in Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 1141–1144. mla: Bornmann, Peter, et al. “Non-Perturbing Cavitation Detection / Monitoring in Sonochemical Reactors.” Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 1141–44, doi:10.1109/ULTSYM.2012.0284. short: 'P. Bornmann, T. Hemsel, W. Sextro, T. Maeda, T. Morita, in: Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 1141–1144.' date_created: 2019-05-13T13:18:49Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' doi: 10.1109/ULTSYM.2012.0284 keyword: - cavitation - chemical reactors - microphones - process monitoring - reliability - ultrasonic applications - ultrasonic waves - acoustic properties - cavitation based ultrasound applications - cavitation intensity - change detection reliability - external microphone - malfunction detection reliability - nonperturbing cavitation detection - nonperturbing cavitation monitoring - process monitoring - self-sensing ultrasound transducer - sonochemical reactors - sonochemistry - ultrasound cleaning - ultrasound irradiation - Acoustics - Liquids - Monitoring - Sensors - Sonar equipment - Transducers - Ultrasonic imaging language: - iso: eng page: 1141-1144 publication: Ultrasonics Symposium (IUS), 2012 IEEE International publication_identifier: issn: - 1948-5719 quality_controlled: '1' status: public title: Non-perturbing cavitation detection / monitoring in sonochemical reactors type: conference user_id: '55222' year: '2012' ... --- _id: '9763' abstract: - lang: eng text: Recent advances in information processing enable new kinds of technical systems, called self-optimizing systems. These systems are able to adapt their objectives and their behavior according to the current situation and influences autonomously. This behavior adaptation is non-deterministic and hence self-optimization is a risk to the system, e.g. if the result of the self-optimization process does not match the suddenly changed situation. In contrary, self-optimization could be used to increase the dependability by pursuing objectives like reliability and availability. In our preceding publications we introduced the so called multi-level dependability concept to cope with this new kind of systems (cf. [6]). This concept comprises the monitoring of the system behavior, the classification of the current situation, and the selection of the appropriate measure, if reliability limits are exceeded. In this paper we present for the first time experimental results. The dependability concept is implemented in the self-optimizing active guidance system of a railway vehicle. The test drives illustrate clearly that the proposed concept is able to cope with, e.g., sensor failures, and is able to increase the reliability and availability of the active guidance module. author: - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Jens full_name: Geisler, Jens last_name: Geisler - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Sondermann-Wölke C, Geisler J, Sextro W. Increasing the reliability of a self-optimizing railway guidance system. In: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual. ; 2010:1-6. doi:10.1109/RAMS.2010.5448080' apa: Sondermann-Wölke, C., Geisler, J., & Sextro, W. (2010). Increasing the reliability of a self-optimizing railway guidance system. In Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual (pp. 1–6). https://doi.org/10.1109/RAMS.2010.5448080 bibtex: '@inproceedings{Sondermann-Wölke_Geisler_Sextro_2010, title={Increasing the reliability of a self-optimizing railway guidance system}, DOI={10.1109/RAMS.2010.5448080}, booktitle={Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter}, year={2010}, pages={1–6} }' chicago: Sondermann-Wölke, Christoph, Jens Geisler, and Walter Sextro. “Increasing the Reliability of a Self-Optimizing Railway Guidance System.” In Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 1–6, 2010. https://doi.org/10.1109/RAMS.2010.5448080. ieee: C. Sondermann-Wölke, J. Geisler, and W. Sextro, “Increasing the reliability of a self-optimizing railway guidance system,” in Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6. mla: Sondermann-Wölke, Christoph, et al. “Increasing the Reliability of a Self-Optimizing Railway Guidance System.” Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6, doi:10.1109/RAMS.2010.5448080. short: 'C. Sondermann-Wölke, J. Geisler, W. Sextro, in: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.' date_created: 2019-05-13T10:35:39Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' doi: 10.1109/RAMS.2010.5448080 keyword: - availability - dependability concept - multilevel dependability concept - railway vehicle - reliability - self optimizing active guidance system - self optimizing railway guidance system - situation classification - system behavior monitoring - optimal control - railways - reliability theory - self-adjusting systems language: - iso: eng page: 1 -6 publication: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual publication_identifier: issn: - 0149-144X quality_controlled: '1' status: public title: Increasing the reliability of a self-optimizing railway guidance system type: conference user_id: '55222' year: '2010' ... --- _id: '9736' abstract: - lang: eng text: Self-optimizing mechatronic systems are a new class of technical systems. On the one hand, new challenges regarding dependability arise from their additional complexity and adaptivity. On the other hand, their abilities enable new concepts and methods to improve the dependability of mechatronic systems. This paper introduces a multi-level dependability concept for self-optimizing mechatronic systems and shows how planning can be used to improve the availability and reliability of systems in the operating stages. author: - first_name: Benjamin full_name: Klöpper, Benjamin last_name: Klöpper - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Christoph full_name: Romaus, Christoph last_name: Romaus - first_name: Henner full_name: Vöcking, Henner last_name: Vöcking citation: ama: 'Klöpper B, Sondermann-Wölke C, Romaus C, Vöcking H. Probabilistic planning integrated in a multi-level dependability concept for mechatronic systems. In: Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium On. ; 2009:104-111. doi:10.1109/CICA.2009.4982790' apa: Klöpper, B., Sondermann-Wölke, C., Romaus, C., & Vöcking, H. (2009). Probabilistic planning integrated in a multi-level dependability concept for mechatronic systems. In Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium on (pp. 104–111). https://doi.org/10.1109/CICA.2009.4982790 bibtex: '@inproceedings{Klöpper_Sondermann-Wölke_Romaus_Vöcking_2009, title={Probabilistic planning integrated in a multi-level dependability concept for mechatronic systems}, DOI={10.1109/CICA.2009.4982790}, booktitle={Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium on}, author={Klöpper, Benjamin and Sondermann-Wölke, Christoph and Romaus, Christoph and Vöcking, Henner}, year={2009}, pages={104–111} }' chicago: Klöpper, Benjamin, Christoph Sondermann-Wölke, Christoph Romaus, and Henner Vöcking. “Probabilistic Planning Integrated in a Multi-Level Dependability Concept for Mechatronic Systems.” In Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium On, 104–11, 2009. https://doi.org/10.1109/CICA.2009.4982790. ieee: B. Klöpper, C. Sondermann-Wölke, C. Romaus, and H. Vöcking, “Probabilistic planning integrated in a multi-level dependability concept for mechatronic systems,” in Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium on, 2009, pp. 104–111. mla: Klöpper, Benjamin, et al. “Probabilistic Planning Integrated in a Multi-Level Dependability Concept for Mechatronic Systems.” Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium On, 2009, pp. 104–11, doi:10.1109/CICA.2009.4982790. short: 'B. Klöpper, C. Sondermann-Wölke, C. Romaus, H. Vöcking, in: Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium On, 2009, pp. 104–111.' date_created: 2019-05-13T09:03:57Z date_updated: 2022-01-06T07:04:19Z department: - _id: '151' doi: 10.1109/CICA.2009.4982790 keyword: - multilevel dependability concept - probabilistic planning - self-optimizing mechatronic systems - systems reliability - mechatronics - planning (artificial intelligence) - self-adjusting systems language: - iso: eng page: 104 -111 publication: Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium on quality_controlled: '1' status: public title: Probabilistic planning integrated in a multi-level dependability concept for mechatronic systems type: conference user_id: '55222' year: '2009' ... --- _id: '9570' abstract: - lang: eng text: "EN: Although the use of new actuator technologies is quite enthusiastic, the realization of innovative systems based on these principles fails because of doubts in dependability. Until now, new working principles for actuators have not been systematically investigated in the means of dependability. Therefore we developed a proceeding for a dependability-oriented evaluation of technologies. This is shown in the case of shape memory alloy actuators. \r\nDE: Die Realisierung von Systemen mittels innovativer Aktortechnologien scheitert oftmals an der Skepsis gegenüber der Verlässlichkeit (Vertrauen in die zuverlässige und sichere Funktionalität der Technologie). Diese liegt darin begründet, dass neue Aktortechnologien bzw. die Integration von innovativen physikalischen Wirkprinzipen innerhalb neuer Aktorkonzepte bisher noch nicht systematisch im Kontext der Verlässlichkeit untersucht werden. Daher haben wir ein Vorgehen zur verlässlichkeitsorientierten Technologiebewertung entwickelt. Neben der detaillierten Darstellung des Vorgehensmodells wird es exemplarisch anhand von Formgedächtnislegierungen zur Entwicklung innovativer Antriebslösungen angewendet." author: - first_name: Thomas full_name: Müller, Thomas last_name: Müller - first_name: Florian full_name: Schiedeck, Florian last_name: Schiedeck - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel citation: ama: 'Müller T, Schiedeck F, Hemsel T. Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen. In: 2. Tagung Des DVM -- Arbeitskreis Zuverlässigkeit Mechatronischer Und Adaptronischer Systeme: Absicherung Der Systemzuverlässigkeit, Koblenz. ; 2008.' apa: 'Müller, T., Schiedeck, F., & Hemsel, T. (2008). Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen. In 2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz.' bibtex: '@inproceedings{Müller_Schiedeck_Hemsel_2008, title={Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen}, booktitle={2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz}, author={Müller, Thomas and Schiedeck, Florian and Hemsel, Tobias}, year={2008} }' chicago: 'Müller, Thomas, Florian Schiedeck, and Tobias Hemsel. “Verlässlichkeitorientierte Technologiebewertung Innovativer Aktortechnologien Am Beispiel von Formgedächtnislegierungen.” In 2. Tagung Des DVM -- Arbeitskreis Zuverlässigkeit Mechatronischer Und Adaptronischer Systeme: Absicherung Der Systemzuverlässigkeit, Koblenz, 2008.' ieee: 'T. Müller, F. Schiedeck, and T. Hemsel, “Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen,” in 2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz, 2008.' mla: 'Müller, Thomas, et al. “Verlässlichkeitorientierte Technologiebewertung Innovativer Aktortechnologien Am Beispiel von Formgedächtnislegierungen.” 2. Tagung Des DVM -- Arbeitskreis Zuverlässigkeit Mechatronischer Und Adaptronischer Systeme: Absicherung Der Systemzuverlässigkeit, Koblenz, 2008.' short: 'T. Müller, F. Schiedeck, T. Hemsel, in: 2. Tagung Des DVM -- Arbeitskreis Zuverlässigkeit Mechatronischer Und Adaptronischer Systeme: Absicherung Der Systemzuverlässigkeit, Koblenz, 2008.' date_created: 2019-04-29T11:57:41Z date_updated: 2022-01-06T07:04:16Z department: - _id: '151' keyword: - 'EN: Dependability' - Reliability - Evaluation of Technology - Actuators - 'Shape Memory Alloys DE: Verl{\' language: - iso: eng publication: '2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz' status: public title: Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen type: conference user_id: '55222' year: '2008' ...