[{"doi":"10.4028/www.scientific.net/KEM.883.11","title":"Influence of the Rivet Coating on the Friction during Self-Piercing Riveting","date_created":"2021-05-31T10:06:11Z","author":[{"last_name":"Uhe","id":"38131","full_name":"Uhe, Benedikt","first_name":"Benedikt"},{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"last_name":"Merklein","full_name":"Merklein, Marion","first_name":"Marion"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","id":"32056","full_name":"Meschut, Gerson"}],"volume":883,"date_updated":"2026-02-27T10:23:33Z","citation":{"apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2021). Influence of the Rivet Coating on the Friction during Self-Piercing Riveting. Key Engineering Materials, 883, 11–18. https://doi.org/10.4028/www.scientific.net/KEM.883.11","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Key Engineering Materials 883 (2021) 11–18.","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2021, title={Influence of the Rivet Coating on the Friction during Self-Piercing Riveting}, volume={883}, DOI={10.4028/www.scientific.net/KEM.883.11}, journal={Key Engineering Materials}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2021}, pages={11–18} }","mla":"Uhe, Benedikt, et al. “Influence of the Rivet Coating on the Friction during Self-Piercing Riveting.” Key Engineering Materials, vol. 883, 2021, pp. 11–18, doi:10.4028/www.scientific.net/KEM.883.11.","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Influence of the Rivet Coating on the Friction during Self-Piercing Riveting. Key Engineering Materials. 2021;883:11-18. doi:10.4028/www.scientific.net/KEM.883.11","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Influence of the Rivet Coating on the Friction during Self-Piercing Riveting.” Key Engineering Materials 883 (2021): 11–18. https://doi.org/10.4028/www.scientific.net/KEM.883.11.","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Influence of the Rivet Coating on the Friction during Self-Piercing Riveting,” Key Engineering Materials, vol. 883, pp. 11–18, 2021, doi: 10.4028/www.scientific.net/KEM.883.11."},"intvolume":" 883","page":"11-18","year":"2021","quality_controlled":"1","language":[{"iso":"eng"}],"keyword":["Coating","Friction","Joining"],"user_id":"53912","department":[{"_id":"157"}],"_id":"22272","status":"public","abstract":[{"text":"The number of multi-material joints is increasing as a result of lightweight design. Self-piercing riveting (SPR) is an important mechanical joining technique for multi-material structures. Rivets for SPR are coated to prevent corrosion, but this coating also influences the friction that prevails during the joining process. The aim of the present investigation is to evaluate this influence. The investigation focuses on the common rivet coatings Almac® and zinc-nickel with topcoat as well as on uncoated rivet surfaces. First of all, the coating thickness and the uniformity of the coating distribution are analysed. Friction tests facilitate the classification of the surface properties. The influence of the friction on the characteristic joint parameters and the force-stroke curves is analysed by means of experimental joining tests. More in-depth knowledge of the effects that occur is achieved through the use of numerical simulation. Overall, it is shown that the surface condition of the rivet has an impact on the friction during the joining process and on the resulting joint. However, the detected deviations between different surface conditions do not restrict the operational capability of SPR and the properties of uncoated rivet surfaces, in particular, are similar to those of Almac®-coated rivets. It can thus be assumed that SPR with respect to the joining process is also possible without rivet coating in principle.","lang":"eng"}],"type":"journal_article","publication":"Key Engineering Materials"},{"project":[{"name":"ChaMP: Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums","_id":"90"},{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"_id":"6563","user_id":"11829","department":[{"_id":"49"}],"language":[{"iso":"ger"}],"type":"dissertation","abstract":[{"lang":"ger","text":"Designprozesse von Schallwandlern werden durch zunehmende Rechenkapazitäten immer mehr durch simulative Betrachtungen unterstützt. Dabei ist vor allem die Wahl der Materialparameter der verwendeten Materialien wichtig für ein realitätsnahes Simulationsergebnis. Bei Schallwandlern werden häufig Piezokeramiken als aktive Elemente genutzt, welche sich durch eine Verkopplung mechanischer und elektrischer Eigenschaften auszeichnen. Zur Bestimmung ihrer Materialparameter stellt der IEEE Standard on Piezoelectricity ein standardisiertes Verfahren dar. Dazu sind fünf Impedanzmessungen an vier unterschiedlich gefertigten Probekörpergeometrien notwendig. Da an jedem einzelnen Probekörper nur eine Untermenge aller notwendigen Materialparameter bestimmt werden kann, werden diese dann zu einem kompletten Materialparametersatz zusammengefügt. Aufgrund der unterschiedlichen Prozessbedingungen, bei denen die jeweiligen Probekörper hergestellt werden, ist dieser Materialparametersatz jedoch inkonsistent und kann nie das Verhalten einer einzelnen Probe beschreiben. Daher wird in der vorliegenden Arbeit ein Messverfahren entwickelt, mit dem es möglich ist, alle relevanten Materialparameter unter besonderer Berücksichtigung von Dämpfung an einem einzelnen Probekörper allein durch Impedanzmessungen zu bestimmen. Als Probekörper wird dazu eine in der Anwendung häufig verwendete Scheibengeometrie verwendet. Um eine hinreichend hohe Sensitivität auf alle Materialparameter zu gewährleisten, wird diese mit einer optimierten Elektrodentopologie gefertigt. Da in diesem Fall keine analytische Betrachtung mehr möglich ist, wird das Messverfahren durch einen inversen Ansatz realisiert."},{"lang":"eng","text":"Design processes of ultrasonic transducers become increasingly simulation-driven due to rising computational capabilities. Therewithin, the choice of the material parameters for modelling the materials used is particularly important for a realistic simulation result. Piezoceramics, which couple mechanic and electrical properties, are often used as active elements in ultrasonic transducers.The IEEE Standard on Piezoelectricity is a standardised procedure for determining these parameters that requires five impedance measurements on four piezocermics of different geometry. Since only a subset of all necessary material parameters can be determined for each individual specimen, these are then combined to form a complete set of material parameters. Due to different processing conditions for each specimen, this set of material parameters is inconsistent and cannot describe the behaviour of a single specimen appropriately. Therefore, in the present thesis, a method is developed with enables the determination of all relevant material parameters including damping on a single piezocermic by means of electrical impedance measurements alone. A piezoelectric ceramic with disc-shaped geometry, which is frequently used in applications, is used as a specimen.In order to ensure a sufficiently high sensitivity to all material parameters, it is manufactured with an optimised electrode topology. Because in this case analytical solutions, which relate the measurement quantities to the material parameters, do not exist, the measurement method is implemented using an inverse approach."}],"status":"public","date_updated":"2026-01-05T07:55:46Z","publisher":"Universität Paderborn","oa":"1","date_created":"2019-01-09T14:37:11Z","author":[{"last_name":"Feldmann","full_name":"Feldmann, Nadine","id":"23082","first_name":"Nadine"}],"supervisor":[{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"},{"first_name":"Andrea","last_name":"Walther","full_name":"Walther, Andrea"}],"title":"\t Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers","main_file_link":[{"open_access":"1","url":"https://digital.ub.uni-paderborn.de/urn/urn:nbn:de:hbz:466:2-40232"}],"doi":"10.17619/UNIPB/1-1264","year":"2021","citation":{"mla":"Feldmann, Nadine. Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021, doi:10.17619/UNIPB/1-1264.","bibtex":"@book{Feldmann_2021, title={ Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers}, DOI={10.17619/UNIPB/1-1264}, publisher={Universität Paderborn}, author={Feldmann, Nadine}, year={2021} }","short":"N. Feldmann, Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers, Universität Paderborn, 2021.","apa":"Feldmann, N. (2021). Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-1264","chicago":"Feldmann, Nadine. Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021. https://doi.org/10.17619/UNIPB/1-1264.","ieee":"N. Feldmann, Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn, 2021.","ama":"Feldmann N. Ein modellbasiertes Messverfahren zur Charakterisierung von Piezokeramiken unter Verwendung eines einzelnen scheibenförmigen Probekörpers. Universität Paderborn; 2021. doi:10.17619/UNIPB/1-1264"},"page":"184"},{"publication_identifier":{"issn":["2196-7113","0171-8096"]},"publication_status":"published","page":"294 - 302","intvolume":" 88","citation":{"bibtex":"@article{Feldmann_Schulze_Claes_Jurgelucks_Meihost_Walther_Henning_2021, title={Modelling damping in piezoceramics: A comparative study}, volume={88}, DOI={10.1515/teme-2020-0096}, number={5}, journal={tm - Technisches Messen}, author={Feldmann, Nadine and Schulze, Veronika and Claes, Leander and Jurgelucks, Benjamin and Meihost, Lars and Walther, Andrea and Henning, Bernd}, year={2021}, pages={294–302} }","short":"N. Feldmann, V. Schulze, L. Claes, B. Jurgelucks, L. Meihost, A. Walther, B. Henning, Tm - Technisches Messen 88 (2021) 294–302.","mla":"Feldmann, Nadine, et al. “Modelling Damping in Piezoceramics: A Comparative Study.” Tm - Technisches Messen, vol. 88, no. 5, 2021, pp. 294–302, doi:10.1515/teme-2020-0096.","apa":"Feldmann, N., Schulze, V., Claes, L., Jurgelucks, B., Meihost, L., Walther, A., & Henning, B. (2021). Modelling damping in piezoceramics: A comparative study. Tm - Technisches Messen, 88(5), 294–302. https://doi.org/10.1515/teme-2020-0096","ieee":"N. Feldmann et al., “Modelling damping in piezoceramics: A comparative study,” tm - Technisches Messen, vol. 88, no. 5, pp. 294–302, 2021, doi: 10.1515/teme-2020-0096.","chicago":"Feldmann, Nadine, Veronika Schulze, Leander Claes, Benjamin Jurgelucks, Lars Meihost, Andrea Walther, and Bernd Henning. “Modelling Damping in Piezoceramics: A Comparative Study.” Tm - Technisches Messen 88, no. 5 (2021): 294–302. https://doi.org/10.1515/teme-2020-0096.","ama":"Feldmann N, Schulze V, Claes L, et al. Modelling damping in piezoceramics: A comparative study. tm - Technisches Messen. 2021;88(5):294-302. doi:10.1515/teme-2020-0096"},"volume":88,"author":[{"first_name":"Nadine","full_name":"Feldmann, Nadine","id":"23082","last_name":"Feldmann"},{"last_name":"Schulze","full_name":"Schulze, Veronika","first_name":"Veronika"},{"orcid":"0000-0002-4393-268X","last_name":"Claes","id":"11829","full_name":"Claes, Leander","first_name":"Leander"},{"full_name":"Jurgelucks, Benjamin","last_name":"Jurgelucks","first_name":"Benjamin"},{"first_name":"Lars","full_name":"Meihost, Lars","id":"24769","last_name":"Meihost"},{"first_name":"Andrea","full_name":"Walther, Andrea","last_name":"Walther"},{"id":"213","full_name":"Henning, Bernd","last_name":"Henning","first_name":"Bernd"}],"date_updated":"2026-01-05T07:54:13Z","doi":"10.1515/teme-2020-0096","type":"journal_article","status":"public","department":[{"_id":"49"}],"user_id":"11829","_id":"21341","project":[{"name":"Ein modellbasiertes Messverfahren zur Charakterisierung der frequenzabhängigen Materialeigenschaften von Piezokeramiken unter Verwendung eines einzelnen Probekörperindividuums","_id":"90"},{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"issue":"5","quality_controlled":"1","year":"2021","date_created":"2021-03-01T14:49:51Z","title":"Modelling damping in piezoceramics: A comparative study","publication":"tm - Technisches Messen","abstract":[{"lang":"eng","text":"The progress in numerical methods and simulation tools promotes the use of inverse problems in material characterisation problems. A newly developed procedure can be used to identify the behaviour of piezoceramic discs over a wide frequency range using a single specimen via fitting simulated and measured impedances by optimising the underlying material parameters. Since there is no generally accepted damping model for piezoelectric ceramics, several mechanical damping models are examined for the material identification. Three models have been chosen and their ability to replicate the measured impedances is evaluated. On the one hand, the common Rayleigh model is considered as a reference. On the other hand, a Zener model and a model using complex constants are extended to model the transversely isotropic material. As the Rayleigh model is only valid for a limited frequency range, it fails to model the broadband behaviour of the material. The model using complex constants leads to the best fit over a wide frequency range while at the same time only adding three additional parameters for modelling damping. Thus, damping can be assumed approximately frequency-independent in piezoceramics."}],"language":[{"iso":"eng"}]},{"year":"2020","citation":{"bibtex":"@article{Bode_Heid_Weber_Hüllermeier_Wallscheid_2020, title={Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control}, journal={arXiv:2005.04869}, author={Bode, Henrik and Heid, Stefan Helmut and Weber, Daniel and Hüllermeier, Eyke and Wallscheid, Oliver}, year={2020} }","mla":"Bode, Henrik, et al. “Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control.” ArXiv:2005.04869, 2020.","short":"H. Bode, S.H. Heid, D. Weber, E. Hüllermeier, O. Wallscheid, ArXiv:2005.04869 (2020).","apa":"Bode, H., Heid, S. H., Weber, D., Hüllermeier, E., & Wallscheid, O. (2020). Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control. ArXiv:2005.04869.","ieee":"H. Bode, S. H. Heid, D. Weber, E. Hüllermeier, and O. Wallscheid, “Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control,” arXiv:2005.04869. 2020.","chicago":"Bode, Henrik, Stefan Helmut Heid, Daniel Weber, Eyke Hüllermeier, and Oliver Wallscheid. “Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control.” ArXiv:2005.04869, 2020.","ama":"Bode H, Heid SH, Weber D, Hüllermeier E, Wallscheid O. Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control. arXiv:200504869. 2020."},"date_updated":"2022-01-06T06:54:07Z","oa":"1","author":[{"first_name":"Henrik","full_name":"Bode, Henrik","last_name":"Bode"},{"first_name":"Stefan Helmut","id":"39640","full_name":"Heid, Stefan Helmut","last_name":"Heid","orcid":"0000-0002-9461-7372"},{"first_name":"Daniel","last_name":"Weber","full_name":"Weber, Daniel"},{"first_name":"Eyke","full_name":"Hüllermeier, Eyke","id":"48129","last_name":"Hüllermeier"},{"first_name":"Oliver","last_name":"Wallscheid","full_name":"Wallscheid, Oliver"}],"date_created":"2020-09-21T10:01:36Z","title":"Towards a Scalable and Flexible Simulation and Testing Environment Toolbox for Intelligent Microgrid Control","main_file_link":[{"open_access":"1","url":"https://arxiv.org/pdf/2005.04869.pdf"}],"type":"preprint","publication":"arXiv:2005.04869","abstract":[{"text":"Micro- and smart grids (MSG) play an important role both for integrating\r\nrenewable energy sources in conventional electricity grids and for providing\r\npower supply in remote areas. Modern MSGs are largely driven by power\r\nelectronic converters due to their high efficiency and flexibility.\r\nNevertheless, controlling MSGs is a challenging task due to highest\r\nrequirements on energy availability, safety and voltage quality within a wide\r\nrange of different MSG topologies. This results in a high demand for\r\ncomprehensive testing of new control concepts during their development phase\r\nand comparisons with the state of the art in order to ensure their feasibility.\r\nThis applies in particular to data-driven control approaches from the field of\r\nreinforcement learning (RL), whose stability and operating behavior can hardly\r\nbe evaluated a priori. Therefore, the OpenModelica Microgrid Gym (OMG) package,\r\nan open-source software toolbox for the simulation and control optimization of\r\nMSGs, is proposed. It is capable of modeling and simulating arbitrary MSG\r\ntopologies and offers a Python-based interface for plug \\& play controller\r\ntesting. In particular, the standardized OpenAI Gym interface allows for easy\r\nRL-based controller integration. Besides the presentation of the OMG toolbox,\r\napplication examples are highlighted including safe Bayesian optimization for\r\nlow-level controller tuning.","lang":"eng"}],"status":"public","_id":"19603","user_id":"39640","language":[{"iso":"eng"}]},{"status":"public","editor":[{"full_name":"Bernhaupt, Regina","last_name":"Bernhaupt","first_name":"Regina"},{"first_name":"Carmelo","last_name":"Ardito","full_name":"Ardito, Carmelo"},{"first_name":"Stefan","full_name":"Sauer, Stefan","last_name":"Sauer"}],"type":"conference","file_date_updated":"2020-11-30T08:39:18Z","department":[{"_id":"66"},{"_id":"534"}],"series_title":"Lecture Notes in Computer Science","user_id":"47208","_id":"19606","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"17","name":"SFB 901 - Subproject C5"}],"intvolume":" 12481","citation":{"apa":"Gottschalk, S., Yigitbas, E., Schmidt, E., & Engels, G. (2020). ProConAR: A Tool Support for Model-based AR Product Configuration. In R. Bernhaupt, C. Ardito, & S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020 (Vol. 12481). Cham: Springer. https://doi.org/10.1007/978-3-030-64266-2_14","mla":"Gottschalk, Sebastian, et al. “ProConAR: A Tool Support for Model-Based AR Product Configuration.” Human-Centered Software Engineering. HCSE 2020, edited by Regina Bernhaupt et al., vol. 12481, Springer, 2020, doi:10.1007/978-3-030-64266-2_14.","bibtex":"@inproceedings{Gottschalk_Yigitbas_Schmidt_Engels_2020, place={Cham}, series={Lecture Notes in Computer Science}, title={ProConAR: A Tool Support for Model-based AR Product Configuration}, volume={12481}, DOI={10.1007/978-3-030-64266-2_14}, booktitle={Human-Centered Software Engineering. HCSE 2020}, publisher={Springer}, author={Gottschalk, Sebastian and Yigitbas, Enes and Schmidt, Eugen and Engels, Gregor}, editor={Bernhaupt, Regina and Ardito, Carmelo and Sauer, StefanEditors}, year={2020}, collection={Lecture Notes in Computer Science} }","short":"S. Gottschalk, E. Yigitbas, E. Schmidt, G. Engels, in: R. Bernhaupt, C. Ardito, S. Sauer (Eds.), Human-Centered Software Engineering. HCSE 2020, Springer, Cham, 2020.","chicago":"Gottschalk, Sebastian, Enes Yigitbas, Eugen Schmidt, and Gregor Engels. “ProConAR: A Tool Support for Model-Based AR Product Configuration.” In Human-Centered Software Engineering. HCSE 2020, edited by Regina Bernhaupt, Carmelo Ardito, and Stefan Sauer, Vol. 12481. Lecture Notes in Computer Science. Cham: Springer, 2020. https://doi.org/10.1007/978-3-030-64266-2_14.","ieee":"S. Gottschalk, E. Yigitbas, E. Schmidt, and G. Engels, “ProConAR: A Tool Support for Model-based AR Product Configuration,” in Human-Centered Software Engineering. HCSE 2020, Eindhoven, 2020, vol. 12481.","ama":"Gottschalk S, Yigitbas E, Schmidt E, Engels G. ProConAR: A Tool Support for Model-based AR Product Configuration. In: Bernhaupt R, Ardito C, Sauer S, eds. Human-Centered Software Engineering. HCSE 2020. Vol 12481. Lecture Notes in Computer Science. Cham: Springer; 2020. doi:10.1007/978-3-030-64266-2_14"},"place":"Cham","has_accepted_license":"1","conference":{"name":"8th International Working Conference on Human-Centered Software Engineering (HCSE'20)","start_date":"2020-11-30","end_date":"2020-12-02","location":"Eindhoven"},"doi":"10.1007/978-3-030-64266-2_14","volume":12481,"author":[{"id":"47208","full_name":"Gottschalk, Sebastian","last_name":"Gottschalk","first_name":"Sebastian"},{"last_name":"Yigitbas","orcid":"0000-0002-5967-833X","id":"8447","full_name":"Yigitbas, Enes","first_name":"Enes"},{"last_name":"Schmidt","full_name":"Schmidt, Eugen","first_name":"Eugen"},{"last_name":"Engels","id":"107","full_name":"Engels, Gregor","first_name":"Gregor"}],"date_updated":"2022-01-06T06:54:07Z","oa":"1","file":[{"content_type":"application/pdf","relation":"main_file","date_updated":"2020-11-30T08:39:18Z","creator":"sego","date_created":"2020-11-30T08:39:18Z","file_size":3913885,"access_level":"open_access","file_name":"HCSE20_demo.pdf","file_id":"20542"}],"abstract":[{"text":"Mobile shopping apps have been using Augmented Reality (AR) in the last years to place their products in the environment of the customer. While this is possible with atomic 3D objects, there is is still a lack in the runtime configuration of 3D object compositions based on user needs and environmental constraints. For this, we previously developed an approach for model-based AR-assisted product configuration based on the concept of Dynamic Software Product Lines. In this demonstration paper, we present the corresponding tool support ProConAR in the form of a Product Modeler and a Product Configurator. While the Product Modeler is an Angular web app that splits products (e.g. table) up into atomic parts (e.g. tabletop, table legs, funnier) and saves it within a configuration model, the Product Configurator is an Android client that uses the configuration model to place different product configurations within the environment of the customer. We show technical details of our ready to use tool-chain ProConAR by describing its implementation and usage as well as pointing out future research directions.","lang":"eng"}],"publication":"Human-Centered Software Engineering. HCSE 2020","language":[{"iso":"eng"}],"keyword":["Product Configuration","Augmented Reality","Model-based","Tool Support"],"ddc":["000"],"year":"2020","title":"ProConAR: A Tool Support for Model-based AR Product Configuration","date_created":"2020-09-21T17:01:11Z","publisher":"Springer"},{"year":"2020","citation":{"apa":"Wende, M., Philippi, K., & Kenig, E. (2020). Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches. 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen . 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen 2020, Aachen.","short":"M. Wende, K. Philippi, E. Kenig, in: 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen , 2020.","bibtex":"@inproceedings{Wende_Philippi_Kenig_2020, series={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen }, title={Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches}, booktitle={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen }, author={Wende, Marc and Philippi, Kai and Kenig, Eugeny}, year={2020}, collection={10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen } }","mla":"Wende, Marc, et al. “Numerische Simulation von Gravidestillationsapparaten Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.” 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen , 2020.","chicago":"Wende, Marc, Kai Philippi, and Eugeny Kenig. “Numerische Simulation von Gravidestillationsapparaten Zur Trennung Eines Binären Ethanol/Wasser-Gemisches.” In 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen . 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen , 2020.","ieee":"M. Wende, K. Philippi, and E. Kenig, “Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches,” presented at the 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen 2020, Aachen, 2020.","ama":"Wende M, Philippi K, Kenig E. Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches. In: 10. ProcessNet-Jahrestagung Und 34. DECHEMA-Jahrestagung Der Biotechnologen . 10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen . ; 2020."},"date_updated":"2022-01-06T06:54:11Z","author":[{"last_name":"Wende","id":"71302","full_name":"Wende, Marc","first_name":"Marc"},{"full_name":"Philippi, Kai","last_name":"Philippi","first_name":"Kai"},{"last_name":"Kenig","id":"665","full_name":"Kenig, Eugeny","first_name":"Eugeny"}],"date_created":"2020-09-28T14:09:47Z","title":"Numerische Simulation von Gravidestillationsapparaten zur Trennung eines binären Ethanol/Wasser-Gemisches","conference":{"name":"10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen 2020","start_date":"21.09.2020","end_date":"24.09.2020","location":"Aachen"},"publication":"10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen ","type":"conference","status":"public","_id":"19738","department":[{"_id":"9"},{"_id":"145"}],"user_id":"71302","series_title":"10. ProcessNet-Jahrestagung und 34. DECHEMA-Jahrestagung der Biotechnologen ","language":[{"iso":"eng"}]},{"title":"Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren","publisher":"Europäische Forschungsgesellschaft für Blechverarbeitung e.V.","date_created":"2020-10-21T06:41:26Z","year":"2020","ddc":["620"],"language":[{"iso":"ger"}],"abstract":[{"text":"Der Karosseriebau ist zunehmend durch die Verwendung unterschiedlicher Werkstoffe in Mischbauweise gekennzeichnet, was zu einem Einsatz von mechanischen Fügeverfahren geführt hat. Hieraus resultieren die Zielsetzungen, die mechanischen Fügeverfahren in ihrer Effizienz und ihren Einsatzbereichen zu erweitern, sowie die Anzahl der Experimente zu reduzieren und Entwicklungszyklen zu verkürzen. Dies erfolgt mit Unterstützung der numerischen Simulation. Neben der Beschreibung des plastischen Verhaltens gilt es auch, das Schädigungsverhalten abzubilden.\r\n\r\nDer Fügeprozess bzw. die Fügerichtung erfolgt senkrecht zur Blechoberfläche und führt somit zu einem dreidimensionalen Zustand der Fügelemente. Hieraus leitet sich die Herausforderung ab, das Werkstoffversagen in Abhängigkeit der Beanspruchungssituation zu beschreiben. Ein einfacher Ansatz zur Abbildung des Durchdringens ist ein geometrisches Trennkriterium.\r\n\r\nEin solches Kriterium basiert i.d.R. auf einem experimentell beobachteten Verhalten und ist somit nicht prognosefähig für Variationen bzgl. Werkzeugkonfigurationen, Blechdicken- und Werkstoffgüten-Kombinationen. In diesem Projekt wird das Schädigungsmodell GISSMO (Generalized Incremental Stress State dependent damage Model) verwendet, um die Entwicklung der duktilen Schädigung zu beschreiben und den Bruchbeginn während des Stanzniet- und Schneidclinchens vorherzusagen.\r\n\r\nDer Spannungszustand während der Prozesssimulation wird untersucht und die verschiedenen Schädigungsproben werden experimentell erprobt, um die Versagenskurven zu charakterisieren. Die Versagenskurven werden im Schädigungsmodell GISSMO definiert. Um die Genauigkeit des Modells zu gewährleisten, wird die Verifizierung des Modells durch die Simulation von Schädigungsproben mit dem Schädigungsmodell durchgeführt.\r\n\r\nZur Validierung des Modells wird die Simulation des Fügeprozesses mit dem Schädigungsmodell durchgeführt und die Ergebnisse von Simulation und Experiment verglichen. Darüber hinaus werden Sensitivitätsanalysen durchgeführt, um die Einflüsse der Fertigungsprozesse, der Lackierung und des Diskretisierungsgrades auf das Schädigungsverhalten des Materials zu identifizieren.\r\nDas IGF-Vorhaben „Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren\" der Forschungsvereinigung EFB e.V. wurde unter der Fördernummer AiF 19452N über die Arbeitsgemeinschaft industrieller Forschungsvereinigungen (AiF) im Rahmen des Programms zur Förderung der Industriellen Gemeinschaftsforschung (IGF) vom Bundesministerium für Wirtschaft und Energie aufgrund eines Beschlusses des Deutschen Bundestages gefördert. Der Abschlussbericht ist als EFB-Forschungsbericht Nr. 527 erschienen und bei der EFB-Geschäftsstelle und im Buchhandel erhältlich.","lang":"ger"},{"text":"The body construction is increasingly characterized by the use of different materials in multi-material-design, which has led to the application of a variety of mechanical joining processes. To enhance the mechanical joining processes in their efficiency, numerical simulation can be used as an effective tool to reduce the number of experiments and shorten the product development cycles. In addition to the description of the plasticity, the damage and the failure behavior of material must also be taken into account.\r\n\r\nIn self-pierce riveting simulations, the rivet penetrates perpendicular into the sheet surface and produces a three-dimensional stress state. Hence, it is essential to describe the material failure as a function of a three-dimensional stress state.\r\n\r\nA simple approach to describe the separation of upper sheet in the simulation of the joining process is based on a geometric separation criterion. Such a criterion is not predictive und cannot be used in case of variations in tool configurations, sheet thickness, and material combinations.\r\n\r\nIn this project, the damage model GISSMO (Generalized Incremental Stress State dependent damage Model) is used to describe the evolution of ductile damage and predict the onset of fracture during the self-piercing riveting and shear-clinching.\r\n\r\nThe stress state during the process simulation is studied and the variety of damage specimens are experimental examined to characterize the failure curves. The failure curves are defined in the GISSMO damage model. To ensure the accuracy of the model, the verification of the model using simulation of damage specimens with damage model is performed.\r\n\r\nFor the validation of model, the simulation of the joining process using the damage model is carried out and the results of simulation and experiment are compared. Furthermore, sensitivity analyses are performed to identify the influences of manufacturing processes, the evaluation method, and the degree of discretization on the damage behavior of material.","lang":"eng"}],"file":[{"relation":"main_file","success":1,"content_type":"image/jpeg","access_level":"closed","file_name":"Schädigunsmodellierung__efb527.jpg","file_id":"21151","file_size":12718,"creator":"motroshi","date_created":"2021-02-03T12:14:18Z","date_updated":"2021-02-03T12:14:18Z"}],"report_number":"527","main_file_link":[{"url":"https://ble-x.de/mydocs/1606"}],"date_updated":"2022-01-06T06:54:20Z","author":[{"full_name":"Otroshi, Mortaza","id":"71269","orcid":"0000-0002-8652-9209","last_name":"Otroshi","first_name":"Mortaza"},{"full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"citation":{"short":"M. Otroshi, G. Meschut, Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren, Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2020.","bibtex":"@book{Otroshi_Meschut_2020, title={Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren}, publisher={Europäische Forschungsgesellschaft für Blechverarbeitung e.V.}, author={Otroshi, Mortaza and Meschut, Gerson}, year={2020} }","mla":"Otroshi, Mortaza, and Gerson Meschut. Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren. Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2020.","apa":"Otroshi, M., & Meschut, G. (2020). Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren. Europäische Forschungsgesellschaft für Blechverarbeitung e.V.","ama":"Otroshi M, Meschut G. Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren. Europäische Forschungsgesellschaft für Blechverarbeitung e.V.; 2020.","chicago":"Otroshi, Mortaza, and Gerson Meschut. Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren. Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2020.","ieee":"M. Otroshi and G. Meschut, Methodenentwicklung zur Schädigungsmodellierung für die numerische Prozesssimulation mechanischer Fügeverfahren. Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2020."},"page":"182","publication_status":"published","has_accepted_license":"1","publication_identifier":{"isbn":["978-3-86776-582-4"]},"file_date_updated":"2021-02-03T12:14:18Z","_id":"20145","user_id":"71269","department":[{"_id":"157"}],"status":"public","type":"report"},{"date_created":"2020-10-21T06:55:12Z","author":[{"first_name":"Lukas","full_name":"Masendorf, Lukas","last_name":"Masendorf"},{"first_name":"Michael","full_name":"Wächter, Michael","last_name":"Wächter"},{"last_name":"Horstmann","full_name":"Horstmann, Stephan","first_name":"Stephan"},{"last_name":"Otroshi","orcid":"0000-0002-8652-9209","id":"71269","full_name":"Otroshi, Mortaza","first_name":"Mortaza"},{"first_name":"Alfons","last_name":"Esderts","full_name":"Esderts, Alfons"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson"}],"date_updated":"2022-01-06T06:54:20Z","publisher":"Deutscher Verband für Materialforschung und -prüfung e.V.","conference":{"name":"Fourth International Conference on Material and Component Performance under Variable Amplitude Loading","start_date":"2020-03-30","end_date":"2020-04-01","location":"Darmstadt, Germany"},"title":"Linear damage accumulation of self-pierce riveted joints","publication_identifier":{"isbn":["978-3-9820591-0-5"]},"publication_status":"published","citation":{"chicago":"Masendorf, Lukas, Michael Wächter, Stephan Horstmann, Mortaza Otroshi, Alfons Esderts, and Gerson Meschut. “Linear Damage Accumulation of Self-Pierce Riveted Joints.” Deutscher Verband für Materialforschung und -prüfung e.V., 2020.","ieee":"L. Masendorf, M. Wächter, S. Horstmann, M. Otroshi, A. Esderts, and G. Meschut, “Linear damage accumulation of self-pierce riveted joints,” presented at the Fourth International Conference on Material and Component Performance under Variable Amplitude Loading, Darmstadt, Germany, 2020.","ama":"Masendorf L, Wächter M, Horstmann S, Otroshi M, Esderts A, Meschut G. Linear damage accumulation of self-pierce riveted joints. In: Deutscher Verband für Materialforschung und -prüfung e.V.; 2020.","apa":"Masendorf, L., Wächter, M., Horstmann, S., Otroshi, M., Esderts, A., & Meschut, G. (2020). Linear damage accumulation of self-pierce riveted joints. Presented at the Fourth International Conference on Material and Component Performance under Variable Amplitude Loading, Darmstadt, Germany: Deutscher Verband für Materialforschung und -prüfung e.V.","bibtex":"@inproceedings{Masendorf_Wächter_Horstmann_Otroshi_Esderts_Meschut_2020, title={Linear damage accumulation of self-pierce riveted joints}, publisher={Deutscher Verband für Materialforschung und -prüfung e.V.}, author={Masendorf, Lukas and Wächter, Michael and Horstmann, Stephan and Otroshi, Mortaza and Esderts, Alfons and Meschut, Gerson}, year={2020} }","short":"L. Masendorf, M. Wächter, S. Horstmann, M. Otroshi, A. Esderts, G. Meschut, in: Deutscher Verband für Materialforschung und -prüfung e.V., 2020.","mla":"Masendorf, Lukas, et al. Linear Damage Accumulation of Self-Pierce Riveted Joints. Deutscher Verband für Materialforschung und -prüfung e.V., 2020."},"year":"2020","department":[{"_id":"157"}],"user_id":"71269","_id":"20146","language":[{"iso":"eng"}],"keyword":["punch rivet","notch strain conept","structural durability"],"type":"conference","status":"public","abstract":[{"lang":"eng","text":"Joining technology is regarded as a key technology for reducing energy consumption and CO2 imitation as well as the use of innovative materials and development of new, resource-saving products. Punch riveting is a widely used and established joining process in many sectors. The white and brown goods, electrical engineering, construction and, in particular, the automotive industry are some of the sectors mentioned here.\r\n\r\nSince the design and assessment of punch rivet components with regard to structural durability can only be carried out experimentally using prototypes due to a lack of experience and calculation concepts, the improvement of this uneconomical and time-consuming procedure is the goal of this contribution.\r\n\r\nTherefore, a numerical simulation and design method for cyclically loads punched riveted joints shall be introduced. This concept shall be based on the notch strain concept.\r\n\r\nThe following steps are necessary to achieve the goal shown above:\r\n\r\n Tensile tests on all materials involved in the joint for determination of tensile strength and quasi-static stress-strain curves\r\n Estimation of the cyclic material properties from the tensile strength in order to obtain the strain-life curve and the cyclic stress-strain curve\r\n Estimation of mean stress sensitivity from the tensile strength to conduct an amplitude transformation for variable amplitude loadings.\r\n Execution of a 2D forming simulation of the joining process to determine the geometry and the stresses and degrees of deformation present in the connection\r\n Transferring the results of the forming simulation into a static-mechanical load simulation for determining the relation between the external load and the elastic-plastic strain at the critical point\r\n Estimation of the service life by means of the damage parameter Wöhler curves calculated from the strain-life curve\r\n\r\nIn order to verify the simulation and calculation method, service life investigations have been carried out on punched riveted components under constant and variable amplitude load.\r\n\r\nThe test results, as well as the workflow through the fatigue assessment and its accuracy in estimation the fatigue life will be shown in this contribution."}]},{"type":"journal_article","status":"public","_id":"20233","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"department":[{"_id":"61"},{"_id":"230"}],"user_id":"158","file_date_updated":"2020-10-30T13:52:58Z","has_accepted_license":"1","publication_identifier":{"issn":["1359-6454"]},"publication_status":"published","intvolume":" 203","page":"116432","citation":{"ieee":"V. Myroshnychenko, S. Smirnov, P. M. M. Jose, C. Brosseau, and J. Förstner, “Nonlinear dielectric properties of random paraelectric-dielectric composites,” Acta Materialia, vol. 203, p. 116432, 2020.","chicago":"Myroshnychenko, Viktor, Stanislav Smirnov, Pious Mathews Mulavarickal Jose, Christian Brosseau, and Jens Förstner. “Nonlinear Dielectric Properties of Random Paraelectric-Dielectric Composites.” Acta Materialia 203 (2020): 116432. https://doi.org/10.1016/j.actamat.2020.10.051.","ama":"Myroshnychenko V, Smirnov S, Jose PMM, Brosseau C, Förstner J. Nonlinear dielectric properties of random paraelectric-dielectric composites. Acta Materialia. 2020;203:116432. doi:10.1016/j.actamat.2020.10.051","apa":"Myroshnychenko, V., Smirnov, S., Jose, P. M. M., Brosseau, C., & Förstner, J. (2020). Nonlinear dielectric properties of random paraelectric-dielectric composites. Acta Materialia, 203, 116432. https://doi.org/10.1016/j.actamat.2020.10.051","mla":"Myroshnychenko, Viktor, et al. “Nonlinear Dielectric Properties of Random Paraelectric-Dielectric Composites.” Acta Materialia, vol. 203, 2020, p. 116432, doi:10.1016/j.actamat.2020.10.051.","bibtex":"@article{Myroshnychenko_Smirnov_Jose_Brosseau_Förstner_2020, title={Nonlinear dielectric properties of random paraelectric-dielectric composites}, volume={203}, DOI={10.1016/j.actamat.2020.10.051}, journal={Acta Materialia}, author={Myroshnychenko, Viktor and Smirnov, Stanislav and Jose, Pious Mathews Mulavarickal and Brosseau, Christian and Förstner, Jens}, year={2020}, pages={116432} }","short":"V. Myroshnychenko, S. Smirnov, P.M.M. Jose, C. Brosseau, J. Förstner, Acta Materialia 203 (2020) 116432."},"oa":"1","date_updated":"2022-01-06T06:54:24Z","volume":203,"author":[{"first_name":"Viktor","last_name":"Myroshnychenko","id":"46371","full_name":"Myroshnychenko, Viktor"},{"first_name":"Stanislav","full_name":"Smirnov, Stanislav","last_name":"Smirnov"},{"first_name":"Pious Mathews Mulavarickal","last_name":"Jose","full_name":"Jose, Pious Mathews Mulavarickal"},{"first_name":"Christian","full_name":"Brosseau, Christian","last_name":"Brosseau"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158"}],"doi":"10.1016/j.actamat.2020.10.051","publication":"Acta Materialia","abstract":[{"lang":"eng","text":"The challenge of designing new tunable nonlinear dielectric materials with tailored properties has attracted an increasing amount of interest recently. Herein, we study the effective nonlinear dielectric response of a stochastic paraelectric-dielectric composite consisting of equilibrium distributions of circular and partially penetrable disks (or parallel, infinitely long, identical, partially penetrable, circular cylinders) of a dielectric phase randomly dispersed in a continuous matrix of a paraelectric phase. The random microstructures were generated using the Metropolis Monte Carlo algorithm. The evaluation of the effective permittivity and tunability were carried out by employing either a Landau thermodynamic model or its Johnson’s approximation to describe the field-dependent permittivity of the paraelectric phase and solving continuum-electrostatics equations using finite element calculations. We reveal that the percolation threshold in this composite governs the critical behavior of the effective permittivity and tunability. For microstructures below the percolation threshold, our simulations demonstrate a strong nonlinear behaviour of the field-dependent effective permittivity and very high tunability that increases as a function of dielectric phase concentration. Above the percolation threshold, the effective permittivity shows the tendency to linearization and the tunability dramatically drops down. The highly reduced permittivity and extraordinarily high tunability are obtained for the composites with dielectric impenetrable disks at high concentrations, in which the triggering of the percolation transition is avoided. The reported results cast light on distinct nonlinear behaviour of 2D and 3D stochastic composites and can guide the design of novel composites with the controlled morphology and tailored permittivity and tunability."}],"file":[{"title":"(Accepted Preprint)","file_size":3934721,"file_name":"2020-10 Myroshnychenko - Acta Material (accepted preprint)_compressed.pdf","access_level":"open_access","file_id":"20234","date_updated":"2020-10-30T13:52:58Z","creator":"fossie","date_created":"2020-10-30T13:52:58Z","relation":"main_file","content_type":"application/pdf"}],"ddc":["530"],"language":[{"iso":"eng"}],"year":"2020","date_created":"2020-10-30T13:51:42Z","title":"Nonlinear dielectric properties of random paraelectric-dielectric composites"},{"title":"Resistance spot welding simulation can determine the critical stress- and strain-conditions leading to liquid metal embrittlement formation","date_updated":"2022-01-06T06:54:25Z","date_created":"2020-11-03T13:59:29Z","author":[{"full_name":"Biegler, Max","last_name":"Biegler","first_name":"Max"},{"last_name":"Rethmeier","full_name":"Rethmeier, Michael","first_name":"Michael"},{"first_name":"Christoph","last_name":"Böhne","id":"22483","full_name":"Böhne, Christoph"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"place":"Bad Nauheim","year":"2020","citation":{"apa":"Biegler, M., Rethmeier, M., Böhne, C., & Meschut, G. (2020). Resistance spot welding simulation can determine the critical stress- and strain-conditions leading to liquid metal embrittlement formation. In Joining in Car Body Engineering. Bad Nauheim.","short":"M. Biegler, M. Rethmeier, C. Böhne, G. Meschut, in: Joining in Car Body Engineering, Bad Nauheim, 2020.","bibtex":"@inproceedings{Biegler_Rethmeier_Böhne_Meschut_2020, place={Bad Nauheim}, title={Resistance spot welding simulation can determine the critical stress- and strain-conditions leading to liquid metal embrittlement formation}, booktitle={Joining in Car Body Engineering}, author={Biegler, Max and Rethmeier, Michael and Böhne, Christoph and Meschut, Gerson}, year={2020} }","mla":"Biegler, Max, et al. “Resistance Spot Welding Simulation Can Determine the Critical Stress- and Strain-Conditions Leading to Liquid Metal Embrittlement Formation.” Joining in Car Body Engineering, 2020.","ieee":"M. Biegler, M. Rethmeier, C. Böhne, and G. Meschut, “Resistance spot welding simulation can determine the critical stress- and strain-conditions leading to liquid metal embrittlement formation,” in Joining in Car Body Engineering, 2020.","chicago":"Biegler, Max, Michael Rethmeier, Christoph Böhne, and Gerson Meschut. “Resistance Spot Welding Simulation Can Determine the Critical Stress- and Strain-Conditions Leading to Liquid Metal Embrittlement Formation.” In Joining in Car Body Engineering. Bad Nauheim, 2020.","ama":"Biegler M, Rethmeier M, Böhne C, Meschut G. Resistance spot welding simulation can determine the critical stress- and strain-conditions leading to liquid metal embrittlement formation. In: Joining in Car Body Engineering. Bad Nauheim; 2020."},"language":[{"iso":"eng"}],"_id":"20273","user_id":"22483","department":[{"_id":"157"}],"status":"public","type":"conference","publication":"Joining in Car Body Engineering"},{"status":"public","editor":[{"last_name":"Ahrendt","full_name":"Ahrendt, Wolfgang","first_name":"Wolfgang"},{"first_name":"Heike","last_name":"Wehrheim","full_name":"Wehrheim, Heike","id":"573"}],"type":"conference_editor","language":[{"iso":"eng"}],"department":[{"_id":"77"}],"user_id":"29719","series_title":"Lecture Notes in Computer Science","_id":"20278","intvolume":" 12165","citation":{"bibtex":"@book{Ahrendt_Wehrheim_2020, series={Lecture Notes in Computer Science}, title={Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed]}, volume={12165}, DOI={10.1007/978-3-030-50995-8}, publisher={Springer}, year={2020}, collection={Lecture Notes in Computer Science} }","mla":"Ahrendt, Wolfgang, and Heike Wehrheim, editors. Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [Postponed]. Vol. 12165, Springer, 2020, doi:10.1007/978-3-030-50995-8.","short":"W. Ahrendt, H. Wehrheim, eds., Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [Postponed], Springer, 2020.","apa":"Ahrendt, W., & Wehrheim, H. (Eds.). (2020). Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed] (Vol. 12165). Springer. https://doi.org/10.1007/978-3-030-50995-8","ieee":"W. Ahrendt and H. Wehrheim, Eds., Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed], vol. 12165. Springer, 2020.","chicago":"Ahrendt, Wolfgang, and Heike Wehrheim, eds. Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [Postponed]. Vol. 12165. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-50995-8.","ama":"Ahrendt W, Wehrheim H, eds. Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [Postponed]. Vol 12165. Springer; 2020. doi:10.1007/978-3-030-50995-8"},"year":"2020","publication_identifier":{"isbn":["978-3-030-50994-1"]},"doi":"10.1007/978-3-030-50995-8","title":"Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed]","volume":12165,"date_created":"2020-11-04T08:44:33Z","publisher":"Springer","date_updated":"2022-01-06T06:54:25Z"},{"publication_identifier":{"issn":["1078-8956","1546-170X"]},"publication_status":"published","year":"2020","page":"828-830","citation":{"ama":"Brand-Miller J, Buyken A. Mapping postprandial responses sets the scene for targeted dietary advice. Nature Medicine. Published online 2020:828-830. doi:10.1038/s41591-020-0909-1","ieee":"J. Brand-Miller and A. Buyken, “Mapping postprandial responses sets the scene for targeted dietary advice,” Nature Medicine, pp. 828–830, 2020, doi: 10.1038/s41591-020-0909-1.","chicago":"Brand-Miller, Jennie, and Anette Buyken. “Mapping Postprandial Responses Sets the Scene for Targeted Dietary Advice.” Nature Medicine, 2020, 828–30. https://doi.org/10.1038/s41591-020-0909-1.","apa":"Brand-Miller, J., & Buyken, A. (2020). Mapping postprandial responses sets the scene for targeted dietary advice. Nature Medicine, 828–830. https://doi.org/10.1038/s41591-020-0909-1","mla":"Brand-Miller, Jennie, and Anette Buyken. “Mapping Postprandial Responses Sets the Scene for Targeted Dietary Advice.” Nature Medicine, 2020, pp. 828–30, doi:10.1038/s41591-020-0909-1.","short":"J. Brand-Miller, A. Buyken, Nature Medicine (2020) 828–830.","bibtex":"@article{Brand-Miller_Buyken_2020, title={Mapping postprandial responses sets the scene for targeted dietary advice}, DOI={10.1038/s41591-020-0909-1}, journal={Nature Medicine}, author={Brand-Miller, Jennie and Buyken, Anette}, year={2020}, pages={828–830} }"},"date_updated":"2022-01-06T06:57:50Z","date_created":"2021-11-27T13:12:10Z","author":[{"first_name":"Jennie","full_name":"Brand-Miller, Jennie","last_name":"Brand-Miller"},{"id":"65985","full_name":"Buyken, Anette","last_name":"Buyken","first_name":"Anette"}],"title":"Mapping postprandial responses sets the scene for targeted dietary advice","doi":"10.1038/s41591-020-0909-1","publication":"Nature Medicine","type":"journal_article","status":"public","_id":"28011","department":[{"_id":"35"},{"_id":"22"},{"_id":"571"}],"user_id":"49428","language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"department":[{"_id":"58"}],"user_id":"15931","_id":"24027","status":"public","abstract":[{"text":"Fault effect simulation is a well-established technique for the qualification of robust embedded software and hardware as required by different safety standards. Our article introduces a Virtual Prototype based approach for the fault analysis and fast simulation of a set of automatically generated and target compiled software programs. The approach scales to different RISC-V ISA standard subset configurations and is based on an instruction and hardware register coverage for automatic fault injections of permanent and transient bitflips. The analysis of each software binary evaluates its opcode type and register access coverage including the addressed memory space. Based on this information dedicated sets of fault injected hardware models, i.e., mutants, are generated. The simulation of all mutants conducted with the different binaries finally identifies the cases with a normal termination though executed on a faulty hardware model. They are identified as a subject for further investigations and improvements by the implementation of additional hardware or software safety countermeasures. Our final evaluation results with automatic C code generation, compilation, analysis, and simulation show that QEMU provides an adequate efficient platform, which also scales to more complex scenarios.","lang":"eng"}],"publication":"MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop","type":"conference","title":"A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures","date_created":"2021-09-09T11:50:19Z","author":[{"first_name":"Peer","last_name":"Adelt","full_name":"Adelt, Peer","id":"5603"},{"last_name":"Koppelmann","id":"25260","full_name":"Koppelmann, Bastian","first_name":"Bastian"},{"first_name":"Wolfgang","id":"16243","full_name":"Müller, Wolfgang","last_name":"Müller"},{"first_name":"Christoph","last_name":"Scheytt","id":"37144","full_name":"Scheytt, Christoph"}],"date_updated":"2022-01-06T06:56:06Z","citation":{"apa":"Adelt, P., Koppelmann, B., Müller, W., & Scheytt, C. (2020). A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures. MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop.","bibtex":"@inproceedings{Adelt_Koppelmann_Müller_Scheytt_2020, place={Stuttgart, DE}, title={A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures}, booktitle={MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop}, author={Adelt, Peer and Koppelmann, Bastian and Müller, Wolfgang and Scheytt, Christoph}, year={2020} }","short":"P. Adelt, B. Koppelmann, W. Müller, C. Scheytt, in: MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop, Stuttgart, DE, 2020.","mla":"Adelt, Peer, et al. “A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures.” MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop, 2020.","chicago":"Adelt, Peer, Bastian Koppelmann, Wolfgang Müller, and Christoph Scheytt. “A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures.” In MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop. Stuttgart, DE, 2020.","ieee":"P. Adelt, B. Koppelmann, W. Müller, and C. Scheytt, “A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures,” 2020.","ama":"Adelt P, Koppelmann B, Müller W, Scheytt C. A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures. In: MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop. ; 2020."},"year":"2020","place":"Stuttgart, DE","related_material":{"link":[{"relation":"confirmation","url":"https://ieeexplore.ieee.org/document/9094540"}]}},{"title":"Additiveteile Direktverschrauben","conference":{"location":"Hamburg","name":"6. Fachkonferenz 3D-Druck in der Automobielindustrie"},"date_updated":"2022-01-06T06:56:13Z","author":[{"id":"20531","full_name":"Moritzer, Elmar","last_name":"Moritzer","first_name":"Elmar"},{"id":"27285","full_name":"Hillemeyer, Johannes","last_name":"Hillemeyer","first_name":"Johannes"}],"date_created":"2021-09-13T07:50:26Z","place":"Hamburg","year":"2020","citation":{"mla":"Moritzer, Elmar, and Johannes Hillemeyer. “Additiveteile Direktverschrauben.” 6. Fachkonferenz 3D-Druck in Der Automobielindustrie, 2020.","short":"E. Moritzer, J. Hillemeyer, in: 6. Fachkonferenz 3D-Druck in Der Automobielindustrie, Hamburg, 2020.","bibtex":"@inproceedings{Moritzer_Hillemeyer_2020, place={Hamburg}, title={Additiveteile Direktverschrauben}, booktitle={6. Fachkonferenz 3D-Druck in der Automobielindustrie}, author={Moritzer, Elmar and Hillemeyer, Johannes}, year={2020} }","apa":"Moritzer, E., & Hillemeyer, J. (2020). Additiveteile Direktverschrauben. 6. Fachkonferenz 3D-Druck in Der Automobielindustrie. 6. Fachkonferenz 3D-Druck in der Automobielindustrie, Hamburg.","ieee":"E. Moritzer and J. Hillemeyer, “Additiveteile Direktverschrauben,” presented at the 6. Fachkonferenz 3D-Druck in der Automobielindustrie, Hamburg, 2020.","chicago":"Moritzer, Elmar, and Johannes Hillemeyer. “Additiveteile Direktverschrauben.” In 6. Fachkonferenz 3D-Druck in Der Automobielindustrie. Hamburg, 2020.","ama":"Moritzer E, Hillemeyer J. Additiveteile Direktverschrauben. In: 6. Fachkonferenz 3D-Druck in Der Automobielindustrie. ; 2020."},"language":[{"iso":"eng"}],"_id":"24203","department":[{"_id":"9"},{"_id":"367"},{"_id":"321"}],"user_id":"44116","status":"public","publication":"6. Fachkonferenz 3D-Druck in der Automobielindustrie","type":"conference"},{"issue":"3-4","publication_status":"published","quality_controlled":"1","citation":{"ama":"Vogtschmidt S, Fiebig I, Schöppner V. Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien. Joining Plastics. 2020;(3-4).","ieee":"S. Vogtschmidt, I. Fiebig, and V. Schöppner, “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien,” Joining Plastics, no. 3–4, 2020.","chicago":"Vogtschmidt, Sascha, Isabel Fiebig, and Volker Schöppner. “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien.” Joining Plastics, no. 3–4 (2020).","apa":"Vogtschmidt, S., Fiebig, I., & Schöppner, V. (2020). Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien. Joining Plastics, 3–4.","mla":"Vogtschmidt, Sascha, et al. “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien.” Joining Plastics, no. 3–4, 2020.","short":"S. Vogtschmidt, I. Fiebig, V. Schöppner, Joining Plastics (2020).","bibtex":"@article{Vogtschmidt_Fiebig_Schöppner_2020, title={Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien}, number={3–4}, journal={Joining Plastics}, author={Vogtschmidt, Sascha and Fiebig, Isabel and Schöppner, Volker}, year={2020} }"},"year":"2020","author":[{"first_name":"Sascha","last_name":"Vogtschmidt","full_name":"Vogtschmidt, Sascha","id":"32492"},{"first_name":"Isabel","last_name":"Fiebig","full_name":"Fiebig, Isabel"},{"first_name":"Volker","last_name":"Schöppner","id":"20530","full_name":"Schöppner, Volker"}],"date_created":"2021-09-14T07:32:20Z","date_updated":"2022-01-06T06:56:17Z","title":"Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien","type":"journal_article","publication":"Joining Plastics","status":"public","user_id":"32492","department":[{"_id":"9"},{"_id":"367"},{"_id":"321"}],"_id":"24312","language":[{"iso":"ger"}]},{"department":[{"_id":"9"},{"_id":"367"},{"_id":"321"}],"user_id":"32492","_id":"24318","language":[{"iso":"ger"}],"publication":"DVS CONGRESS 2020 - Große Schweißtechnische Tagung","type":"conference","status":"public","volume":365,"date_created":"2021-09-14T07:40:30Z","author":[{"last_name":"Vogtschmidt","id":"32492","full_name":"Vogtschmidt, Sascha","first_name":"Sascha"},{"full_name":"Schöppner, Volker","id":"20530","last_name":"Schöppner","first_name":"Volker"}],"date_updated":"2022-01-06T06:56:17Z","title":"Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien","publication_status":"published","intvolume":" 365","citation":{"apa":"Vogtschmidt, S., & Schöppner, V. (2020). Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien. DVS CONGRESS 2020 - Große Schweißtechnische Tagung, 365.","bibtex":"@inproceedings{Vogtschmidt_Schöppner_2020, title={Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien}, volume={365}, booktitle={DVS CONGRESS 2020 - Große Schweißtechnische Tagung}, author={Vogtschmidt, Sascha and Schöppner, Volker}, year={2020} }","mla":"Vogtschmidt, Sascha, and Volker Schöppner. “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien.” DVS CONGRESS 2020 - Große Schweißtechnische Tagung, vol. 365, 2020.","short":"S. Vogtschmidt, V. Schöppner, in: DVS CONGRESS 2020 - Große Schweißtechnische Tagung, 2020.","chicago":"Vogtschmidt, Sascha, and Volker Schöppner. “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien.” In DVS CONGRESS 2020 - Große Schweißtechnische Tagung, Vol. 365, 2020.","ieee":"S. Vogtschmidt and V. Schöppner, “Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien,” in DVS CONGRESS 2020 - Große Schweißtechnische Tagung, 2020, vol. 365.","ama":"Vogtschmidt S, Schöppner V. Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien. In: DVS CONGRESS 2020 - Große Schweißtechnische Tagung. Vol 365. ; 2020."},"year":"2020"},{"status":"public","type":"conference_abstract","language":[{"iso":"eng"}],"department":[{"_id":"9"},{"_id":"624"},{"_id":"219"},{"_id":"367"},{"_id":"321"}],"user_id":"29588","_id":"24478","citation":{"ama":"Moritzer E, Wächter J. From filament production to material qualification for the FDM process. In: ; 2020.","ieee":"E. Moritzer and J. Wächter, “From filament production to material qualification for the FDM process,” presented at the Seminar(Thermofisher): Polymer Compounds for 3D filaments – production, quality control and application, Karlsruhe, 2020.","chicago":"Moritzer, Elmar, and Julian Wächter. “From Filament Production to Material Qualification for the FDM Process,” 2020.","apa":"Moritzer, E., & Wächter, J. (2020). From filament production to material qualification for the FDM process. Seminar(Thermofisher): Polymer Compounds for 3D filaments – production, quality control and application, Karlsruhe.","bibtex":"@inproceedings{Moritzer_Wächter_2020, title={From filament production to material qualification for the FDM process}, author={Moritzer, Elmar and Wächter, Julian}, year={2020} }","short":"E. Moritzer, J. Wächter, in: 2020.","mla":"Moritzer, Elmar, and Julian Wächter. From Filament Production to Material Qualification for the FDM Process. 2020."},"year":"2020","conference":{"name":"Seminar(Thermofisher): Polymer Compounds for 3D filaments – production, quality control and application","location":"Karlsruhe"},"title":"From filament production to material qualification for the FDM process","author":[{"last_name":"Moritzer","id":"20531","full_name":"Moritzer, Elmar","first_name":"Elmar"},{"id":"29588","full_name":"Wächter, Julian","last_name":"Wächter","first_name":"Julian"}],"date_created":"2021-09-15T07:37:01Z","date_updated":"2022-01-06T06:56:24Z"},{"_id":"26526","department":[{"_id":"35"},{"_id":"22"},{"_id":"395"}],"user_id":"49428","language":[{"iso":"eng"}],"publication":"Allergy","type":"journal_article","status":"public","date_updated":"2022-01-06T06:57:21Z","author":[{"first_name":"Monika","last_name":"Gappa","full_name":"Gappa, Monika"},{"last_name":"Filipiak‐Pittroff","full_name":"Filipiak‐Pittroff, Birgit","first_name":"Birgit"},{"first_name":"Lars","full_name":"Libuda, Lars","id":"88682","last_name":"Libuda","orcid":"0000-0003-1603-3133"},{"first_name":"Andrea","last_name":"Berg","full_name":"Berg, Andrea"},{"last_name":"Koletzko","full_name":"Koletzko, Sibylle","first_name":"Sibylle"},{"full_name":"Bauer, Carl‐Peter","last_name":"Bauer","first_name":"Carl‐Peter"},{"first_name":"Joachim","last_name":"Heinrich","full_name":"Heinrich, Joachim"},{"full_name":"Schikowski, Tamara","last_name":"Schikowski","first_name":"Tamara"},{"last_name":"Berdel","full_name":"Berdel, Dietrich","first_name":"Dietrich"},{"last_name":"Standl","full_name":"Standl, Marie","first_name":"Marie"}],"date_created":"2021-10-19T09:56:15Z","title":"Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study","doi":"10.1111/all.14709","publication_identifier":{"issn":["0105-4538","1398-9995"]},"publication_status":"published","year":"2020","page":"1903-1907","citation":{"bibtex":"@article{Gappa_Filipiak‐Pittroff_Libuda_Berg_Koletzko_Bauer_Heinrich_Schikowski_Berdel_Standl_2020, title={Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study}, DOI={10.1111/all.14709}, journal={Allergy}, author={Gappa, Monika and Filipiak‐Pittroff, Birgit and Libuda, Lars and Berg, Andrea and Koletzko, Sibylle and Bauer, Carl‐Peter and Heinrich, Joachim and Schikowski, Tamara and Berdel, Dietrich and Standl, Marie}, year={2020}, pages={1903–1907} }","short":"M. Gappa, B. Filipiak‐Pittroff, L. Libuda, A. Berg, S. Koletzko, C. Bauer, J. Heinrich, T. Schikowski, D. Berdel, M. Standl, Allergy (2020) 1903–1907.","mla":"Gappa, Monika, et al. “Long‐term Effects of Hydrolyzed Formulae on Atopic Diseases in the GINI Study.” Allergy, 2020, pp. 1903–07, doi:10.1111/all.14709.","apa":"Gappa, M., Filipiak‐Pittroff, B., Libuda, L., Berg, A., Koletzko, S., Bauer, C., Heinrich, J., Schikowski, T., Berdel, D., & Standl, M. (2020). Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study. Allergy, 1903–1907. https://doi.org/10.1111/all.14709","ama":"Gappa M, Filipiak‐Pittroff B, Libuda L, et al. Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study. Allergy. Published online 2020:1903-1907. doi:10.1111/all.14709","chicago":"Gappa, Monika, Birgit Filipiak‐Pittroff, Lars Libuda, Andrea Berg, Sibylle Koletzko, Carl‐Peter Bauer, Joachim Heinrich, Tamara Schikowski, Dietrich Berdel, and Marie Standl. “Long‐term Effects of Hydrolyzed Formulae on Atopic Diseases in the GINI Study.” Allergy, 2020, 1903–7. https://doi.org/10.1111/all.14709.","ieee":"M. Gappa et al., “Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study,” Allergy, pp. 1903–1907, 2020, doi: 10.1111/all.14709."}},{"page":"2581-2591","citation":{"short":"L. Libuda, R. Naaresh, C. Ludwig, B.-H. Laabs, J. Antel, M. Föcker, J. Hebebrand, A. Hinney, T. Peters, European Journal of Nutrition (2020) 2581–2591.","bibtex":"@article{Libuda_Naaresh_Ludwig_Laabs_Antel_Föcker_Hebebrand_Hinney_Peters_2020, title={A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder}, DOI={10.1007/s00394-020-02439-2}, journal={European Journal of Nutrition}, author={Libuda, Lars and Naaresh, Roaa and Ludwig, Christine and Laabs, Björn-Hergen and Antel, Jochen and Föcker, Manuel and Hebebrand, Johannes and Hinney, Anke and Peters, Triinu}, year={2020}, pages={2581–2591} }","mla":"Libuda, Lars, et al. “A Mendelian Randomization Study on Causal Effects of 25(OH)Vitamin D Levels on Attention Deficit/Hyperactivity Disorder.” European Journal of Nutrition, 2020, pp. 2581–91, doi:10.1007/s00394-020-02439-2.","apa":"Libuda, L., Naaresh, R., Ludwig, C., Laabs, B.-H., Antel, J., Föcker, M., Hebebrand, J., Hinney, A., & Peters, T. (2020). A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder. European Journal of Nutrition, 2581–2591. https://doi.org/10.1007/s00394-020-02439-2","ieee":"L. Libuda et al., “A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder,” European Journal of Nutrition, pp. 2581–2591, 2020, doi: 10.1007/s00394-020-02439-2.","chicago":"Libuda, Lars, Roaa Naaresh, Christine Ludwig, Björn-Hergen Laabs, Jochen Antel, Manuel Föcker, Johannes Hebebrand, Anke Hinney, and Triinu Peters. “A Mendelian Randomization Study on Causal Effects of 25(OH)Vitamin D Levels on Attention Deficit/Hyperactivity Disorder.” European Journal of Nutrition, 2020, 2581–91. https://doi.org/10.1007/s00394-020-02439-2.","ama":"Libuda L, Naaresh R, Ludwig C, et al. A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder. European Journal of Nutrition. Published online 2020:2581-2591. doi:10.1007/s00394-020-02439-2"},"year":"2020","publication_identifier":{"issn":["1436-6207","1436-6215"]},"publication_status":"published","doi":"10.1007/s00394-020-02439-2","title":"A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder","author":[{"id":"88682","full_name":"Libuda, Lars","orcid":"0000-0003-1603-3133","last_name":"Libuda","first_name":"Lars"},{"full_name":"Naaresh, Roaa","last_name":"Naaresh","first_name":"Roaa"},{"full_name":"Ludwig, Christine","last_name":"Ludwig","first_name":"Christine"},{"first_name":"Björn-Hergen","full_name":"Laabs, Björn-Hergen","last_name":"Laabs"},{"last_name":"Antel","full_name":"Antel, Jochen","first_name":"Jochen"},{"last_name":"Föcker","full_name":"Föcker, Manuel","first_name":"Manuel"},{"full_name":"Hebebrand, Johannes","last_name":"Hebebrand","first_name":"Johannes"},{"full_name":"Hinney, Anke","last_name":"Hinney","first_name":"Anke"},{"full_name":"Peters, Triinu","last_name":"Peters","first_name":"Triinu"}],"date_created":"2021-10-19T09:57:27Z","date_updated":"2022-01-06T06:57:21Z","status":"public","abstract":[{"text":"Abstract\r\n Background\r\n While observational studies revealed an inverse association between serum 25(OH)vitamin D (25(OH)D) and the risk of attention deficit/hyperactivity disorder (ADHD), the causality of this relationship remains unclear.\r\n \r\n Methods\r\n We conducted a bidirectional two-sample Mendelian Randomization (MR) study to examine whether 25(OH)D has an effect on the risk to develop ADHD or vice versa. Information on single nucleotide polymorphisms (SNP) associated with serum 25(OH)D was obtained from a genome-wide association study (GWAS) considering phenotype data from 79,366 individuals of European ancestry. Data on risk for ADHD were derived from a GWAS analysis with 20,183 individuals diagnosed with ADHD and 35,191 controls. For our analysis, we considered effect sizes based on the European participants (19,099 cases and 34,194 controls).\r\n \r\n Results\r\n Single SNP analyses showed a causal effect of vitamin D on ADHD risk for only one SNP (rs12785878, p = 0.024). The overall MR estimates did not reveal a causal effect of 25(OH)D on risk for ADHD. In the reverse analysis, neither any single nor the multi-SNP MR analyses showed a causal effect of ADHD on 25(OH)D.\r\n \r\n Conclusion\r\n Results from this two-sample MR study did not confirm a causal effect of 25(OH)D on ADHD or vice versa. Accordingly, our study does not provide evidence that improving 25(OH)D via supplementation could reduce the risk of developing ADHD.\r\n ","lang":"eng"}],"publication":"European Journal of Nutrition","type":"journal_article","language":[{"iso":"eng"}],"department":[{"_id":"35"},{"_id":"22"},{"_id":"395"}],"user_id":"49428","_id":"26527"},{"title":"The overall diet quality in childhood is prospectively associated with the timing of puberty","doi":"10.1007/s00394-020-02425-8","date_updated":"2022-01-06T06:57:21Z","date_created":"2021-10-19T09:58:18Z","author":[{"full_name":"Duan, Ruonan","last_name":"Duan","first_name":"Ruonan"},{"first_name":"Tian","last_name":"Qiao","full_name":"Qiao, Tian"},{"first_name":"Yue","full_name":"Chen, Yue","last_name":"Chen"},{"full_name":"Chen, Mengxue","last_name":"Chen","first_name":"Mengxue"},{"first_name":"Hongmei","full_name":"Xue, Hongmei","last_name":"Xue"},{"first_name":"Xue","last_name":"Zhou","full_name":"Zhou, Xue"},{"first_name":"Mingzhe","full_name":"Yang, Mingzhe","last_name":"Yang"},{"full_name":"Liu, Yan","last_name":"Liu","first_name":"Yan"},{"first_name":"Li","last_name":"Zhao","full_name":"Zhao, Li"},{"full_name":"Libuda, Lars","id":"88682","orcid":"0000-0003-1603-3133","last_name":"Libuda","first_name":"Lars"},{"first_name":"Guo","last_name":"Cheng","full_name":"Cheng, Guo"}],"year":"2020","citation":{"apa":"Duan, R., Qiao, T., Chen, Y., Chen, M., Xue, H., Zhou, X., Yang, M., Liu, Y., Zhao, L., Libuda, L., & Cheng, G. (2020). The overall diet quality in childhood is prospectively associated with the timing of puberty. European Journal of Nutrition, 2423–2434. https://doi.org/10.1007/s00394-020-02425-8","short":"R. Duan, T. Qiao, Y. Chen, M. Chen, H. Xue, X. Zhou, M. Yang, Y. Liu, L. Zhao, L. Libuda, G. Cheng, European Journal of Nutrition (2020) 2423–2434.","bibtex":"@article{Duan_Qiao_Chen_Chen_Xue_Zhou_Yang_Liu_Zhao_Libuda_et al._2020, title={The overall diet quality in childhood is prospectively associated with the timing of puberty}, DOI={10.1007/s00394-020-02425-8}, journal={European Journal of Nutrition}, author={Duan, Ruonan and Qiao, Tian and Chen, Yue and Chen, Mengxue and Xue, Hongmei and Zhou, Xue and Yang, Mingzhe and Liu, Yan and Zhao, Li and Libuda, Lars and et al.}, year={2020}, pages={2423–2434} }","mla":"Duan, Ruonan, et al. “The Overall Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty.” European Journal of Nutrition, 2020, pp. 2423–34, doi:10.1007/s00394-020-02425-8.","ama":"Duan R, Qiao T, Chen Y, et al. The overall diet quality in childhood is prospectively associated with the timing of puberty. European Journal of Nutrition. Published online 2020:2423-2434. doi:10.1007/s00394-020-02425-8","chicago":"Duan, Ruonan, Tian Qiao, Yue Chen, Mengxue Chen, Hongmei Xue, Xue Zhou, Mingzhe Yang, et al. “The Overall Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty.” European Journal of Nutrition, 2020, 2423–34. https://doi.org/10.1007/s00394-020-02425-8.","ieee":"R. Duan et al., “The overall diet quality in childhood is prospectively associated with the timing of puberty,” European Journal of Nutrition, pp. 2423–2434, 2020, doi: 10.1007/s00394-020-02425-8."},"page":"2423-2434","publication_status":"published","publication_identifier":{"issn":["1436-6207","1436-6215"]},"language":[{"iso":"eng"}],"_id":"26529","user_id":"49428","department":[{"_id":"35"},{"_id":"22"},{"_id":"395"}],"abstract":[{"text":"Abstract\r\n Purpose\r\n The influences of nutrition in childhood on puberty onset could have sustained consequences for health and wellbeing later in life. The aim of this study was to investigate the prospective association of diet quality prior to puberty with the timing of puberty onset.\r\n \r\n Methods\r\n We considered data from 3983 SCCNG (Southwest China Childhood Nutrition and Growth) study participants with dietary data, anthropometric measurement, and information on potential confounders at their baseline assessment (mean age: 7.1 years for girls and 7.3 years for boys; mean length of follow-up was 4.2 years). Cox proportional hazard regression estimating hazard ratios (HRs) and 95% confidence intervals (CIs) were used to examine the relationship between diet quality and puberty onset. Dietary intake at baseline was assessed using a validated food frequency questionnaire. Diet quality was determined using the Chinese Children Dietary Index (CCDI) which measures adherence to current dietary recommendations (theoretical range: 0–160 points). Age at Tanner stage 2 for breast/genital development (B2/G2), menarche or voice break (M/VB) were used as pubertal markers.\r\n\r\n \r\n Results\r\n The CCDI score ranged from 56.2 to 136.3 for girls and 46.1–131.5 for boys. Pubertal markers consistently indicate that girls and boys with higher diet quality were more likely to enter their puberty later than their counterparts with lower CCDI scores (higher vs. lower CCDI tertiles: adjusted HR for age at B2: 0.85 (95% CI, 0.81–0.94), p for trend = 0.02; G2: 0.86 (95% CI,0.80–0.96), p for trend = 0.02; M: 0.86 (95% CI,0.80–0.95), p for trend = 0.02; VB: 0.86 (95% CI,0.79–0.98), p for trend = 0.03), after adjustment for paternal education level, baseline energy intake, and pre-pubertal body fat.\r\n \r\n Conclusions\r\n Our data suggested a later puberty onset and later timing of progressed puberty stages in children with a high diet quality, which were independent of pre-pubertal body fat.\r\n ","lang":"eng"}],"status":"public","type":"journal_article","publication":"European Journal of Nutrition"}]