[{"department":[{"_id":"157"}],"publication_status":"published","series_title":"Key Engineering Materials","citation":{"ama":"Rossel MS, Böhnke M, Bielak CR, Bobbert M, Meschut G. Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes. In: <i>Sheet Metal 2021</i>. Vol 883. Key Engineering Materials. Trans Tech Publications Ltd; 2021:81-88. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">10.4028/www.scientific.net/KEM.883.81</a>","apa":"Rossel, M. S., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2021). Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes. <i>Sheet Metal 2021</i>, <i>883</i>, 81–88. <a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">https://doi.org/10.4028/www.scientific.net/KEM.883.81</a>","chicago":"Rossel, Moritz Sebastian, Max Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes.” In <i>Sheet Metal 2021</i>, 883:81–88. Key Engineering Materials. Trans Tech Publications Ltd, 2021. <a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">https://doi.org/10.4028/www.scientific.net/KEM.883.81</a>.","ieee":"M. S. Rossel, M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes,” in <i>Sheet Metal 2021</i>, 2021, vol. 883, pp. 81–88, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">10.4028/www.scientific.net/KEM.883.81</a>.","mla":"Rossel, Moritz Sebastian, et al. “Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes.” <i>Sheet Metal 2021</i>, vol. 883, Trans Tech Publications Ltd, 2021, pp. 81–88, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">10.4028/www.scientific.net/KEM.883.81</a>.","bibtex":"@inproceedings{Rossel_Böhnke_Bielak_Bobbert_Meschut_2021, series={Key Engineering Materials}, title={Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/KEM.883.81\">10.4028/www.scientific.net/KEM.883.81</a>}, booktitle={Sheet Metal 2021}, publisher={Trans Tech Publications Ltd}, author={Rossel, Moritz Sebastian and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2021}, pages={81–88}, collection={Key Engineering Materials} }","short":"M.S. Rossel, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Sheet Metal 2021, Trans Tech Publications Ltd, 2021, pp. 81–88."},"intvolume":"       883","author":[{"full_name":"Rossel, Moritz Sebastian","first_name":"Moritz Sebastian","last_name":"Rossel","id":"44503"},{"first_name":"Max","full_name":"Böhnke, Max","last_name":"Böhnke","id":"45779"},{"first_name":"Christian Roman","full_name":"Bielak, Christian Roman","id":"34782","last_name":"Bielak"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"full_name":"Meschut, Gerson","first_name":"Gerson","id":"32056","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"date_updated":"2024-03-11T08:15:08Z","_id":"21811","status":"public","year":"2021","language":[{"iso":"eng"}],"publisher":"Trans Tech Publications Ltd","date_created":"2021-04-28T06:12:54Z","user_id":"45779","keyword":["Tribology","Sheet Metal","Simulation"],"doi":"10.4028/www.scientific.net/KEM.883.81","abstract":[{"lang":"eng","text":"In order to reduce the fuel consumption and consequently the greenhouse emissions, the automotive industry is implementing lightweight constructions in the body in white production. As a result, the use of aluminum alloys is continuously increasing. Due to poor weldability of aluminum in combination with other materials, mechanical joining technologies like clinching are increasingly used. In order to predict relevant characteristics of clinched joints and to ensure the reliability of the process, it is simulated numerically during product development processes. In this regard the predictive accuracy of the simulated process highly depends on the implemented friction model. In particular, the frictional behavior between the sheet metals affects the geometrical formation of the clinched joint significantly. This paper presents a testing method, which enables to determine the frictional coefficients between sheet metal materials for the simulation of clinching processes. For this purpose, the correlation of interface pressure and the relative velocity between aluminum sheets in clinching processes is investigated using numerical simulation. Furthermore, the developed testing method focuses on the specimen geometry as well as the reproduction of the occurring friction conditions between two sheet metal materials in clinching processes. Based on a methodical approach the test setup is explained and the functionality of the method is proven by experimental tests using sheet metal material EN AW6014. "}],"title":"Development of a Method for the Identification of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching Processes","volume":883,"page":"81-88","type":"conference","publication":"Sheet Metal 2021","quality_controlled":"1"},{"doi":"10.1016/j.jmatprotec.2021.117182","title":"Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet","keyword":["Industrial and Manufacturing Engineering","Metals and Alloys","Computer Science Applications","Modeling and Simulation","Ceramics and Composites"],"user_id":"65085","type":"journal_article","quality_controlled":"1","publication":"Journal of Materials Processing Technology","article_number":"117182","volume":296,"intvolume":"       296","author":[{"full_name":"Han, Daxin","first_name":"Daxin","last_name":"Han","id":"36544"},{"first_name":"Keke","full_name":"Yang, Keke","last_name":"Yang","id":"65085","orcid":"0000-0001-9201-9304"},{"orcid":"0000-0002-2763-1246","id":"32056","last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson"}],"department":[{"_id":"157"}],"publication_status":"published","citation":{"bibtex":"@article{Han_Yang_Meschut_2021, title={Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet}, volume={296}, DOI={<a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">10.1016/j.jmatprotec.2021.117182</a>}, number={117182}, journal={Journal of Materials Processing Technology}, publisher={Elsevier BV}, author={Han, Daxin and Yang, Keke and Meschut, Gerson}, year={2021} }","mla":"Han, Daxin, et al. “Mechanical Joining of Glass Fibre Reinforced Polymer (GFRP) through an Innovative Solid Self-Piercing Rivet.” <i>Journal of Materials Processing Technology</i>, vol. 296, 117182, Elsevier BV, 2021, doi:<a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">10.1016/j.jmatprotec.2021.117182</a>.","short":"D. Han, K. Yang, G. Meschut, Journal of Materials Processing Technology 296 (2021).","ama":"Han D, Yang K, Meschut G. Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet. <i>Journal of Materials Processing Technology</i>. 2021;296. doi:<a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">10.1016/j.jmatprotec.2021.117182</a>","apa":"Han, D., Yang, K., &#38; Meschut, G. (2021). Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet. <i>Journal of Materials Processing Technology</i>, <i>296</i>, Article 117182. <a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">https://doi.org/10.1016/j.jmatprotec.2021.117182</a>","ieee":"D. Han, K. Yang, and G. Meschut, “Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative solid self-piercing rivet,” <i>Journal of Materials Processing Technology</i>, vol. 296, Art. no. 117182, 2021, doi: <a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">10.1016/j.jmatprotec.2021.117182</a>.","chicago":"Han, Daxin, Keke Yang, and Gerson Meschut. “Mechanical Joining of Glass Fibre Reinforced Polymer (GFRP) through an Innovative Solid Self-Piercing Rivet.” <i>Journal of Materials Processing Technology</i> 296 (2021). <a href=\"https://doi.org/10.1016/j.jmatprotec.2021.117182\">https://doi.org/10.1016/j.jmatprotec.2021.117182</a>."},"status":"public","language":[{"iso":"eng"}],"year":"2021","publication_identifier":{"issn":["0924-0136"]},"publisher":"Elsevier BV","date_created":"2023-01-21T10:32:47Z","date_updated":"2024-06-25T08:04:43Z","_id":"37822"},{"date_updated":"2023-06-01T14:35:13Z","article_number":"106498","volume":153,"_id":"41510","status":"public","publication_identifier":{"issn":["0142-1123"]},"year":"2021","type":"journal_article","language":[{"iso":"eng"}],"publisher":"Elsevier BV","quality_controlled":"1","publication":"International Journal of Fatigue","date_created":"2023-02-02T14:33:05Z","department":[{"_id":"9"},{"_id":"158"}],"user_id":"43720","publication_status":"published","keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials","General Materials Science","Modeling and Simulation"],"citation":{"mla":"Pramanik, Sudipta, et al. “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” <i>International Journal of Fatigue</i>, vol. 153, 106498, Elsevier BV, 2021, doi:<a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">10.1016/j.ijfatigue.2021.106498</a>.","bibtex":"@article{Pramanik_Andreiev_Hoyer_Schaper_2021, title={Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy}, volume={153}, DOI={<a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">10.1016/j.ijfatigue.2021.106498</a>}, number={106498}, journal={International Journal of Fatigue}, publisher={Elsevier BV}, author={Pramanik, Sudipta and Andreiev, Anatolii and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021} }","short":"S. Pramanik, A. Andreiev, K.-P. Hoyer, M. Schaper, International Journal of Fatigue 153 (2021).","apa":"Pramanik, S., Andreiev, A., Hoyer, K.-P., &#38; Schaper, M. (2021). Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy. <i>International Journal of Fatigue</i>, <i>153</i>, Article 106498. <a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>","ama":"Pramanik S, Andreiev A, Hoyer K-P, Schaper M. Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy. <i>International Journal of Fatigue</i>. 2021;153. doi:<a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">10.1016/j.ijfatigue.2021.106498</a>","chicago":"Pramanik, Sudipta, Anatolii Andreiev, Kay-Peter Hoyer, and Mirko Schaper. “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” <i>International Journal of Fatigue</i> 153 (2021). <a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>.","ieee":"S. Pramanik, A. Andreiev, K.-P. Hoyer, and M. Schaper, “Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy,” <i>International Journal of Fatigue</i>, vol. 153, Art. no. 106498, 2021, doi: <a href=\"https://doi.org/10.1016/j.ijfatigue.2021.106498\">10.1016/j.ijfatigue.2021.106498</a>."},"doi":"10.1016/j.ijfatigue.2021.106498","intvolume":"       153","author":[{"last_name":"Pramanik","first_name":"Sudipta","full_name":"Pramanik, Sudipta"},{"id":"50215","last_name":"Andreiev","full_name":"Andreiev, Anatolii","first_name":"Anatolii"},{"id":"48411","last_name":"Hoyer","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter"},{"full_name":"Schaper, Mirko","first_name":"Mirko","last_name":"Schaper","id":"43720"}],"title":"Quasi in-situ analysis of fracture path during cyclic loading of double-edged U notched additively manufactured FeCo alloy"},{"author":[{"id":"28647","last_name":"Schemmel","full_name":"Schemmel, Reinhard","first_name":"Reinhard"},{"last_name":"Krieger","full_name":"Krieger, Viktor","first_name":"Viktor"},{"id":"210","last_name":"Hemsel","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"last_name":"Sextro","id":"21220","full_name":"Sextro, Walter","first_name":"Walter"}],"intvolume":"       119","publication_status":"published","citation":{"bibtex":"@article{Schemmel_Krieger_Hemsel_Sextro_2021, title={Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization}, volume={119}, DOI={<a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>}, journal={Microelectronics Reliability}, author={Schemmel, Reinhard and Krieger, Viktor and Hemsel, Tobias and Sextro, Walter}, year={2021}, pages={114077} }","mla":"Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” <i>Microelectronics Reliability</i>, vol. 119, 2021, p. 114077, doi:<a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>.","short":"R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, Microelectronics Reliability 119 (2021) 114077.","apa":"Schemmel, R., Krieger, V., Hemsel, T., &#38; Sextro, W. (2021). Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. <i>Microelectronics Reliability</i>, <i>119</i>, 114077. <a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>","ama":"Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. <i>Microelectronics Reliability</i>. 2021;119:114077. doi:<a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>","ieee":"R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization,” <i>Microelectronics Reliability</i>, vol. 119, p. 114077, 2021, doi: <a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>.","chicago":"Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” <i>Microelectronics Reliability</i> 119 (2021): 114077. <a href=\"https://doi.org/10.1016/j.microrel.2021.114077\">https://doi.org/10.1016/j.microrel.2021.114077</a>."},"department":[{"_id":"151"}],"date_created":"2021-03-10T09:37:02Z","status":"public","year":"2021","publication_identifier":{"issn":["0026-2714"]},"language":[{"iso":"eng"}],"_id":"21436","date_updated":"2023-09-21T14:15:33Z","title":"Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization","abstract":[{"lang":"eng","text":"Ultrasonic wire bonding is a solid-state joining process, used in the electronics industry to form electrical connections, e.g. to connect electrical terminals within semiconductor modules. Many process parameters affect the bond strength, such like the bond normal force, ultrasonic power, wire material and bonding frequency. Today, process design, development, and optimization is most likely based on the knowledge of process engineers and is mainly performed by experimental testing. In this contribution, a newly developed simulation tool is presented, to reduce time and costs and efficiently determine optimized process parameter. Based on a co-simulation of MATLAB and ANSYS, the different physical phenomena of the wire bonding process are considered using finite element simulation for the complex plastic deformation of the wire and reduced order models for the transient dynamics of the transducer, wire, substrate and bond formation. The model parameters such as the coefficients of friction between bond tool and wire and between wire and substrate were determined for aluminium and copper wire in experiments with a test rig specially developed for the requirements of heavy wire bonding. To reduce simulation time, for the finite element simulation a restart analysis and high performance computing is utilized. Detailed analysis of the bond formation showed, that the normal pressure distribution in the contact between wire and substrate has high impact on bond formation and distribution of welded areas in the contact area."}],"doi":"https://doi.org/10.1016/j.microrel.2021.114077","user_id":"210","keyword":["Ultrasonic heavy wire bonding","Co-simulation","ANSYS","MATLAB","Process optimization","Friction coefficient","Copper-copper","Aluminium-copper"],"quality_controlled":"1","publication":"Microelectronics Reliability","type":"journal_article","volume":119,"page":"114077"},{"_id":"23431","date_updated":"2025-06-06T08:08:32Z","date_created":"2021-08-18T06:20:21Z","year":"2021","publication_identifier":{"issn":["1359-8368"]},"language":[{"iso":"eng"}],"status":"public","citation":{"ieee":"C. Cheng <i>et al.</i>, “Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure,” <i>Composites Part B: Engineering</i>, vol. 224, Art. no. 109209, 2021, doi: <a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">10.1016/j.compositesb.2021.109209</a>.","chicago":"Cheng, C., Z. Wang, Z. Jin, X. Ju, Swetlana Schweizer, Thomas Tröster, and Rolf Mahnken. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.” <i>Composites Part B: Engineering</i> 224 (2021). <a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">https://doi.org/10.1016/j.compositesb.2021.109209</a>.","ama":"Cheng C, Wang Z, Jin Z, et al. Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure. <i>Composites Part B: Engineering</i>. 2021;224. doi:<a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">10.1016/j.compositesb.2021.109209</a>","apa":"Cheng, C., Wang, Z., Jin, Z., Ju, X., Schweizer, S., Tröster, T., &#38; Mahnken, R. (2021). Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure. <i>Composites Part B: Engineering</i>, <i>224</i>, Article 109209. <a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">https://doi.org/10.1016/j.compositesb.2021.109209</a>","short":"C. Cheng, Z. Wang, Z. Jin, X. Ju, S. Schweizer, T. Tröster, R. Mahnken, Composites Part B: Engineering 224 (2021).","bibtex":"@article{Cheng_Wang_Jin_Ju_Schweizer_Tröster_Mahnken_2021, title={Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure}, volume={224}, DOI={<a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">10.1016/j.compositesb.2021.109209</a>}, number={109209}, journal={Composites Part B: Engineering}, author={Cheng, C. and Wang, Z. and Jin, Z. and Ju, X. and Schweizer, Swetlana and Tröster, Thomas and Mahnken, Rolf}, year={2021} }","mla":"Cheng, C., et al. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.” <i>Composites Part B: Engineering</i>, vol. 224, 109209, 2021, doi:<a href=\"https://doi.org/10.1016/j.compositesb.2021.109209\">10.1016/j.compositesb.2021.109209</a>."},"publication_status":"published","department":[{"_id":"9"},{"_id":"154"},{"_id":"321"},{"_id":"149"}],"author":[{"full_name":"Cheng, C.","first_name":"C.","last_name":"Cheng"},{"first_name":"Z.","full_name":"Wang, Z.","last_name":"Wang"},{"last_name":"Jin","full_name":"Jin, Z.","first_name":"Z."},{"first_name":"X.","full_name":"Ju, X.","last_name":"Ju"},{"last_name":"Schweizer","id":"8938","full_name":"Schweizer, Swetlana","first_name":"Swetlana"},{"last_name":"Tröster","id":"553","full_name":"Tröster, Thomas","first_name":"Thomas"},{"id":"335","last_name":"Mahnken","first_name":"Rolf","full_name":"Mahnken, Rolf"}],"intvolume":"       224","volume":224,"article_number":"109209","quality_controlled":"1","publication":"Composites Part B: Engineering","type":"journal_article","user_id":"15952","keyword":["Non-linear mean-field homogenization Average asymmetric plasticity of matrix Fibre–matrix interface debonding Micro-mechanical FE-simulation Progressive failure"],"title":"Non-linear mean-field modelling of UD composite laminates accounting for average asymmetric plasticity of the matrix, debonding and progressive failure","abstract":[{"lang":"eng","text":"As an effective and accurate method for modelling composite materials, mean-field homogenization is still not well studied in modelling non-linear and damage behaviours of UD composites. Investigated micro FE-simulations show that the matrix of UD composites exhibits different average plastic behaviour, named as average asymmetric matrix plasticity (AAMP), when the composite behaves different under shear, longitudinal and transverse loadings. In this study, a non-linear mean-field debonding model (NMFDM) combining a mean-field model and a fibre–matrix interface debonding model, is developed to simulate UD composites under consideration of AAMP, fibre–matrix interface damage and progressive failure. AAMP is considered by using so-called stress mode factor, which is expressed in terms of basic invariants of the matrix deviatoric stress tensor and is used as an indicator for detection of differences in the loading mode. The material behaviour of UD composites with imperfect interface is assumed identical as for perfect interface and stiffness reduced fibres. Progressive failure criteria are established with consideration of fibre breakage and matrix crack for different fibre orientations. As a representative example for the NMFDM, a C30/E201 UD composite is studied. To verify the model, experiments are conducted on polymers, carbon fibres and UD CFRPs. Finally, the model is applied to simulate a perforated CFRP laminate, which shows excellent prediction ability on deformation, debonding and progressive failure."}],"doi":"10.1016/j.compositesb.2021.109209"},{"author":[{"orcid":"0000-0003-1183-4679","id":"36303","last_name":"Malena","full_name":"Malena, Kevin","first_name":"Kevin"},{"full_name":"Link, Christopher","first_name":"Christopher","id":"38249","last_name":"Link"},{"full_name":"Mertin, Sven","first_name":"Sven","id":"13195","last_name":"Mertin"},{"first_name":"Sandra","full_name":"Gausemeier, Sandra","last_name":"Gausemeier","id":"17793"},{"first_name":"Ansgar","full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler"}],"conference":{"end_date":"2021-04-30","name":"7th International Conference on Vehicle Technology and Intelligent Transport Systems","start_date":"2021-04-28","location":"Online Streaming"},"intvolume":"         7","place":"Portugal","publication_status":"published","citation":{"short":"K. Malena, C. Link, S. Mertin, S. Gausemeier, A. Trächtler, in: VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems, SCITEPRESS, Portugal, 2021, pp. 386–395.","chicago":"Malena, Kevin, Christopher Link, Sven Mertin, Sandra Gausemeier, and Ansgar Trächtler. “Online State Estimation for Microscopic Traffic Simulations Using Multiple Data Sources*.” In <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems</i>, 7:386–95. VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems. Portugal: SCITEPRESS, 2021.","ieee":"K. Malena, C. Link, S. Mertin, S. Gausemeier, and A. Trächtler, “Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*,” in <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems</i>, Online Streaming, 2021, vol. 7, pp. 386–395.","mla":"Malena, Kevin, et al. “Online State Estimation for Microscopic Traffic Simulations Using Multiple Data Sources*.” <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems</i>, vol. 7, SCITEPRESS, 2021, pp. 386–95.","apa":"Malena, K., Link, C., Mertin, S., Gausemeier, S., &#38; Trächtler, A. (2021). Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*. <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems</i>, <i>7</i>, 386–395.","bibtex":"@inproceedings{Malena_Link_Mertin_Gausemeier_Trächtler_2021, place={Portugal}, series={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems}, title={Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*}, volume={7}, booktitle={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems}, publisher={SCITEPRESS}, author={Malena, Kevin and Link, Christopher and Mertin, Sven and Gausemeier, Sandra and Trächtler, Ansgar}, year={2021}, pages={386–395}, collection={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems} }","ama":"Malena K, Link C, Mertin S, Gausemeier S, Trächtler A. Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*. In: <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems</i>. Vol 7. VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems. SCITEPRESS; 2021:386-395."},"series_title":"VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems","department":[{"_id":"153"}],"publisher":"SCITEPRESS","related_material":{"record":[{"id":"33849","status":"public","relation":"is_continued_by"}],"link":[{"url":"https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1","relation":"confirmation"}]},"date_created":"2021-09-10T12:19:14Z","status":"public","language":[{"iso":"eng"}],"year":"2021","publication_identifier":{"isbn":["978-989-758-513-5"]},"_id":"24159","date_updated":"2026-01-26T08:49:53Z","title":"Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*","abstract":[{"lang":"eng","text":"The online fitting of a microscopic traffic simulation model to reconstruct the current state of a real traffic\r\narea can be challenging depending on the provided data. This paper presents a novel method based on limited\r\ndata from sensors positioned at specific locations and guarantees a general accordance of reality and\r\nsimulation in terms of multimodal road traffic counts and vehicle speeds. In these considerations, the actual\r\npurpose of research is of particular importance. Here, the research aims at improving the traffic flow by\r\ncontrolling the Traffic Light Systems (TLS) of the examined area which is why the current traffic state and\r\nthe route choices of individual road users are the matter of interest. An integer optimization problem is derived\r\nto fit the current simulation to the latest field measurements. The concept can be transferred to any road traffic\r\nnetwork and results in an observation of the current multimodal traffic state matching at the given sensor\r\nposition. First case studies show promosing results in terms of deviations between reality and simulation."}],"project":[{"name":"Pilotprojekt \"Schlosskreuzung\"","_id":"688"}],"main_file_link":[{"url":"https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1"}],"keyword":["Microscopic Traffic Simulation","Online State Estimation","Mixed Road Users","Sensor Fusion","Integer Programming","Route Choice","Vehicle2Infrastructure"],"user_id":"36303","publication":"VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems","quality_controlled":"1","type":"conference","volume":7,"page":"386-395"},{"type":"book_chapter","publication":"Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis","edition":"1","page":"315-346 (32)","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"doi":"10.1049/pbcs072e_ch14","abstract":[{"text":"Using near-field (NF) scan data to predict the far-field (FF) behaviour of radiating electronic systems represents a novel method to accompany the whole RF design process. This approach involves so-called Huygens' box as an efficient radiation model inside an electromagnetic (EM) simulation tool and then transforms the scanned NF measured data into the FF. For this, the basic idea of the Huygens'box principle and the NF-to-FF transformation are briefly presented. The NF is measured on the Huygens' box around a device under test using anNF scanner, recording the magnitude and phase of the site-related magnetic and electric components. A comparison between a fullwave simulation and the measurement results shows a good similarity in both the NF and the simulated and transformed FF.Thus, this method is applicable to predict the FF behaviour of any electronic system by measuring the NF. With this knowledge, the RF design can be improved due to allowing a significant reduction of EM compatibility failure at the end of the development flow. In addition, the very efficient FF radiation model can be used for detailed investigations in various environments and the impact of such an equivalent radiation source on other electronic systems can be assessed.","lang":"eng"}],"title":"Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs","user_id":"38240","keyword":["Huygens' box","NF-to-FF transformation","efficient FF radiation model","FF behaviour","EMI assessment","PCB","near-field measurements","efficient radiation model","far-field behaviour","RF design process","far-field prediction","Huygens'box principle","fullwave simulation","electronic system radiation","equivalent radiation source","electromagnetic simulation tool","near-field scan data","EM compatibility failure reduction"],"main_file_link":[{"url":"https://digital-library.theiet.org/content/books/10.1049/pbcs072e_ch14"}],"publication_identifier":{"isbn":["9781839530494","9781839530500"]},"year":"2020","language":[{"iso":"eng"}],"status":"public","related_material":{"record":[{"relation":"other","status":"public","id":"21542"}]},"date_created":"2021-03-18T13:49:49Z","publisher":" The Institution of Engineering and Technology (IET)","date_updated":"2022-01-06T06:55:03Z","_id":"21542","place":"Croyton, UK","author":[{"full_name":"Schröder, Dominik","first_name":"Dominik","last_name":"Schröder"},{"last_name":"Lange","id":"38240","full_name":"Lange, Sven","first_name":"Sven"},{"first_name":"Christian","full_name":"Hangmann, Christian","last_name":"Hangmann"},{"full_name":"Hedayat, Christian","first_name":"Christian","last_name":"Hedayat"}],"department":[{"_id":"485"}],"citation":{"short":"D. Schröder, S. Lange, C. Hangmann, C. Hedayat, in: Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed.,  The Institution of Engineering and Technology (IET), Croyton, UK, 2020, pp. 315-346 (32).","mla":"Schröder, Dominik, et al. “Far-Field Prediction Combining Simulations with near-Field Measurements for EMI Assessment of PCBs.” <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>, 1st ed.,  The Institution of Engineering and Technology (IET), 2020, pp. 315-346 (32), doi:<a href=\"https://doi.org/10.1049/pbcs072e_ch14\">10.1049/pbcs072e_ch14</a>.","bibtex":"@inbook{Schröder_Lange_Hangmann_Hedayat_2020, place={Croyton, UK}, edition={1}, title={Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs}, DOI={<a href=\"https://doi.org/10.1049/pbcs072e_ch14\">10.1049/pbcs072e_ch14</a>}, booktitle={Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis}, publisher={ The Institution of Engineering and Technology (IET)}, author={Schröder, Dominik and Lange, Sven and Hangmann, Christian and Hedayat, Christian}, year={2020}, pages={315-346 (32)} }","chicago":"Schröder, Dominik, Sven Lange, Christian Hangmann, and Christian Hedayat. “Far-Field Prediction Combining Simulations with near-Field Measurements for EMI Assessment of PCBs.” In <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>, 1st ed., 315-346 (32). Croyton, UK:  The Institution of Engineering and Technology (IET), 2020. <a href=\"https://doi.org/10.1049/pbcs072e_ch14\">https://doi.org/10.1049/pbcs072e_ch14</a>.","ieee":"D. Schröder, S. Lange, C. Hangmann, and C. Hedayat, “Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs,” in <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>, 1st ed., Croyton, UK:  The Institution of Engineering and Technology (IET), 2020, pp. 315-346 (32).","apa":"Schröder, D., Lange, S., Hangmann, C., &#38; Hedayat, C. (2020). Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs. In <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i> (1st ed., pp. 315-346 (32)). Croyton, UK:  The Institution of Engineering and Technology (IET). <a href=\"https://doi.org/10.1049/pbcs072e_ch14\">https://doi.org/10.1049/pbcs072e_ch14</a>","ama":"Schröder D, Lange S, Hangmann C, Hedayat C. Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs. In: <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>. 1st ed. Croyton, UK:  The Institution of Engineering and Technology (IET); 2020:315-346 (32). doi:<a href=\"https://doi.org/10.1049/pbcs072e_ch14\">10.1049/pbcs072e_ch14</a>"},"publication_status":"published"},{"user_id":"34782","keyword":["Clinching","process simulation","FEM","pre-straining","sensitivity analysis"],"publication_status":"published","citation":{"short":"C.R. Bielak, M. Böhnke, R. Beck, M. Bobbert, G. Meschut, Journal of Advanced Joining Processes.  (2020).","mla":"Bielak, Christian Roman, et al. “Numerical Analysis of the Robustness of Clinching Process Considering the Pre-Forming of the Parts .” <i>Journal of Advanced Joining Processes. </i>, Elsevier, 2020, doi:<a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>.","bibtex":"@article{Bielak_Böhnke_Beck_Bobbert_Meschut_2020, title={Numerical analysis of the robustness of clinching process considering the pre-forming of the parts }, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>}, journal={Journal of Advanced Joining Processes. }, publisher={Elsevier}, author={Bielak, Christian Roman and Böhnke, Max and Beck, Robert and Bobbert, Mathias and Meschut, Gerson}, year={2020} }","chicago":"Bielak, Christian Roman, Max Böhnke, Robert Beck, Mathias Bobbert, and Gerson Meschut. “Numerical Analysis of the Robustness of Clinching Process Considering the Pre-Forming of the Parts .” <i>Journal of Advanced Joining Processes. </i>, 2020. <a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>.","ieee":"C. R. Bielak, M. Böhnke, R. Beck, M. Bobbert, and G. Meschut, “Numerical analysis of the robustness of clinching process considering the pre-forming of the parts ,” <i>Journal of Advanced Joining Processes. </i>, 2020, doi: <a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>.","ama":"Bielak CR, Böhnke M, Beck R, Bobbert M, Meschut G. Numerical analysis of the robustness of clinching process considering the pre-forming of the parts . <i>Journal of Advanced Joining Processes </i>. Published online 2020. doi:<a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>","apa":"Bielak, C. R., Böhnke, M., Beck, R., Bobbert, M., &#38; Meschut, G. (2020). Numerical analysis of the robustness of clinching process considering the pre-forming of the parts . <i>Journal of Advanced Joining Processes. </i>. <a href=\"https://doi.org/10.1016/j.jajp.2020.100038\">https://doi.org/10.1016/j.jajp.2020.100038</a>"},"department":[{"_id":"157"}],"author":[{"first_name":"Christian Roman","full_name":"Bielak, Christian Roman","last_name":"Bielak","id":"34782"},{"first_name":"Max","full_name":"Böhnke, Max","id":"45779","last_name":"Böhnke"},{"first_name":"Robert","full_name":"Beck, Robert","id":"38279","last_name":"Beck"},{"full_name":"Bobbert, Mathias","first_name":"Mathias","id":"7850","last_name":"Bobbert"},{"full_name":"Meschut, Gerson","first_name":"Gerson","last_name":"Meschut","id":"32056","orcid":"0000-0002-2763-1246"}],"title":"Numerical analysis of the robustness of clinching process considering the pre-forming of the parts ","doi":"https://doi.org/10.1016/j.jajp.2020.100038","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"_id":"20678","date_updated":"2022-03-24T09:39:11Z","publisher":"Elsevier","publication":"Journal of Advanced Joining Processes. ","date_created":"2020-12-02T16:21:34Z","status":"public","publication_identifier":{"unknown":["https://doi.org/10.1016/j.jajp.2020.100038"]},"type":"journal_article","year":"2020","language":[{"iso":"eng"}]},{"date_created":"2020-09-14T12:42:30Z","status":"public","language":[{"iso":"eng"}],"year":"2020","publication_identifier":{"isbn":["3-936338-73-6"]},"_id":"19390","file_date_updated":"2022-01-06T13:41:20Z","date_updated":"2022-01-06T13:43:51Z","author":[{"orcid":"0000-0002-3594-260X","full_name":"Krauter, Stefan","first_name":"Stefan","last_name":"Krauter","id":"28836"},{"last_name":"Rustemovic","full_name":"Rustemovic, D.","first_name":"D."},{"last_name":"Khatibi","id":"43538","first_name":"Arash","full_name":"Khatibi, Arash"}],"conference":{"name":"37th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2020)","location":"online","start_date":"2020-09-07","end_date":"2020-09-11"},"publication_status":"published","citation":{"chicago":"Krauter, Stefan, D. Rustemovic, and Arash Khatibi. “Reduction of Required Storage Capacities for a 100% Renewable Energy Supply in Germany, If New PV Systems Are Installed with East-West Tracking Systems at Increased Elevation Angles.” In <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>, 1818–19, 2020. <a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10</a>.","ieee":"S. Krauter, D. Rustemovic, and A. Khatibi, “Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles,” in <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>, online, 2020, pp. 1818–1819, doi: <a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">10.4229/EUPVSEC20202020-6BV.5.10</a>.","apa":"Krauter, S., Rustemovic, D., &#38; Khatibi, A. (2020). Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles. <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>, 1818–1819. <a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10</a>","ama":"Krauter S, Rustemovic D, Khatibi A. Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles. In: <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>. ; 2020:1818-1819. doi:<a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">10.4229/EUPVSEC20202020-6BV.5.10</a>","short":"S. Krauter, D. Rustemovic, A. Khatibi, in: Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020, 2020, pp. 1818–1819.","mla":"Krauter, Stefan, et al. “Reduction of Required Storage Capacities for a 100% Renewable Energy Supply in Germany, If New PV Systems Are Installed with East-West Tracking Systems at Increased Elevation Angles.” <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>, 2020, pp. 1818–19, doi:<a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">10.4229/EUPVSEC20202020-6BV.5.10</a>.","bibtex":"@inproceedings{Krauter_Rustemovic_Khatibi_2020, title={Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles}, DOI={<a href=\"https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10\">10.4229/EUPVSEC20202020-6BV.5.10</a>}, booktitle={Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020}, author={Krauter, Stefan and Rustemovic, D. and Khatibi, Arash}, year={2020}, pages={1818–1819} }"},"department":[{"_id":"53"}],"publication":"Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020","ddc":["620"],"quality_controlled":"1","type":"conference","page":"1818 - 1819","file":[{"content_type":"application/pdf","access_level":"closed","file_id":"29178","date_created":"2022-01-06T13:41:20Z","creator":"krauter","file_size":428312,"file_name":"Krauter Rustemovic Khatibi - Elevated Angle - EUPVSEC 2020.pdf","success":1,"relation":"main_file","date_updated":"2022-01-06T13:41:20Z"}],"title":"Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles","doi":"10.4229/EUPVSEC20202020-6BV.5.10","has_accepted_license":"1","abstract":[{"lang":"eng","text":"Due to the strong reduction of PV prices, storage plays a dominating role in overall system costs. A \r\nsteeper elevation angle would result in a more balanced seasonal PV yield, at the cost of PV yield reductions during \r\nsummer, but allowing reduced storage capacities. Additionally, the effect of a single-axis tracking system has been \r\ninvestigated, generating more electricity during the morning and evening hours, thus reducing daily storage \r\nrequirements. The necessary PV size and storage capacities required for the German energy supply (1,500 TWh after \r\nelectrification of all sectors) via 100% renewable energies and a 50% solar share have been calculated via the \r\nHOMER Pro software, considering the bridging of periods of \"dark lulls“ in winter, using costs of 2030 (Table 1). \r\nResults: The increase of module elevation angles above the typical 30° leads to a reduction of investment and supply \r\ncosts. The optimum is reached at a cost reduction of -1.5% for an elevation angle at the latitude of the installation \r\nsite. An explanation is that high elevation angles are favorable for clear winter days, but not at all for the critical days \r\nwith diffuse irradiance only, so the battery capacity must be increased. For the same reason, tracking systems do not \r\noffer any cost advantage (at least for the ones without an option for horizontal positioning during diffuse days)."}],"keyword":["Energy Storage","PV system integration","Large Grid-connected PV systems","Simulation","Energy Supply Options"],"user_id":"28836"},{"status":"public","language":[{"iso":"eng"}],"year":"2020","publication_identifier":{"issn":["1536-0040"]},"publisher":"Society for Industrial & Applied Mathematics (SIAM)","date_created":"2022-09-06T11:37:42Z","date_updated":"2022-09-07T08:36:03Z","_id":"33263","intvolume":"        19","author":[{"full_name":"Nijholt, Eddie","first_name":"Eddie","last_name":"Nijholt"},{"last_name":"Rink","first_name":"Bob W.","full_name":"Rink, Bob W."},{"first_name":"Sören","full_name":"Schwenker, Sören","id":"97359","last_name":"Schwenker","orcid":"0000-0002-8054-2058"}],"publication_status":"published","citation":{"chicago":"Nijholt, Eddie, Bob W. Rink, and Sören Schwenker. “Quiver Representations and Dimension Reduction in Dynamical Systems.” <i>SIAM Journal on Applied Dynamical Systems</i> 19, no. 4 (2020): 2428–68. <a href=\"https://doi.org/10.1137/20m1345670\">https://doi.org/10.1137/20m1345670</a>.","short":"E. Nijholt, B.W. Rink, S. Schwenker, SIAM Journal on Applied Dynamical Systems 19 (2020) 2428–2468.","ieee":"E. Nijholt, B. W. Rink, and S. Schwenker, “Quiver Representations and Dimension Reduction in Dynamical Systems,” <i>SIAM Journal on Applied Dynamical Systems</i>, vol. 19, no. 4, pp. 2428–2468, 2020, doi: <a href=\"https://doi.org/10.1137/20m1345670\">10.1137/20m1345670</a>.","mla":"Nijholt, Eddie, et al. “Quiver Representations and Dimension Reduction in Dynamical Systems.” <i>SIAM Journal on Applied Dynamical Systems</i>, vol. 19, no. 4, Society for Industrial &#38; Applied Mathematics (SIAM), 2020, pp. 2428–68, doi:<a href=\"https://doi.org/10.1137/20m1345670\">10.1137/20m1345670</a>.","apa":"Nijholt, E., Rink, B. W., &#38; Schwenker, S. (2020). Quiver Representations and Dimension Reduction in Dynamical Systems. <i>SIAM Journal on Applied Dynamical Systems</i>, <i>19</i>(4), 2428–2468. <a href=\"https://doi.org/10.1137/20m1345670\">https://doi.org/10.1137/20m1345670</a>","ama":"Nijholt E, Rink BW, Schwenker S. Quiver Representations and Dimension Reduction in Dynamical Systems. <i>SIAM Journal on Applied Dynamical Systems</i>. 2020;19(4):2428-2468. doi:<a href=\"https://doi.org/10.1137/20m1345670\">10.1137/20m1345670</a>","bibtex":"@article{Nijholt_Rink_Schwenker_2020, title={Quiver Representations and Dimension Reduction in Dynamical Systems}, volume={19}, DOI={<a href=\"https://doi.org/10.1137/20m1345670\">10.1137/20m1345670</a>}, number={4}, journal={SIAM Journal on Applied Dynamical Systems}, publisher={Society for Industrial &#38; Applied Mathematics (SIAM)}, author={Nijholt, Eddie and Rink, Bob W. and Schwenker, Sören}, year={2020}, pages={2428–2468} }"},"type":"journal_article","publication":"SIAM Journal on Applied Dynamical Systems","issue":"4","volume":19,"page":"2428-2468","doi":"10.1137/20m1345670","abstract":[{"lang":"eng","text":"Dynamical systems often admit geometric properties that must be taken into account when studying their behavior. We show that many such properties can be encoded by means of quiver representations. These properties include classical symmetry, hidden symmetry, and feedforward structure, as well as subnetwork and quotient relations in network dynamical systems. A quiver equivariant dynamical system consists of a collection of dynamical systems with maps between them that send solutions to solutions. We prove that such quiver structures are preserved under Lyapunov--Schmidt reduction, center manifold reduction, and normal form reduction."}],"extern":"1","title":"Quiver Representations and Dimension Reduction in Dynamical Systems","external_id":{"arxiv":["2006.08073"]},"keyword":["Modeling and Simulation","Analysis"],"user_id":"97359"},{"date_updated":"2023-07-10T11:39:59Z","_id":"34670","status":"public","publication_identifier":{"issn":["0218-2025","1793-6314"]},"year":"2020","language":[{"iso":"eng"}],"publisher":"World Scientific Pub Co Pte Lt","date_created":"2022-12-21T09:48:11Z","department":[{"_id":"34"},{"_id":"10"},{"_id":"90"}],"publication_status":"published","citation":{"ama":"Black T. Global generalized solutions to a forager–exploiter model with superlinear degradation and their eventual regularity properties. <i>Mathematical Models and Methods in Applied Sciences</i>. 2020;30(06):1075-1117. doi:<a href=\"https://doi.org/10.1142/s0218202520400072\">10.1142/s0218202520400072</a>","apa":"Black, T. (2020). Global generalized solutions to a forager–exploiter model with superlinear degradation and their eventual regularity properties. <i>Mathematical Models and Methods in Applied Sciences</i>, <i>30</i>(06), 1075–1117. <a href=\"https://doi.org/10.1142/s0218202520400072\">https://doi.org/10.1142/s0218202520400072</a>","ieee":"T. Black, “Global generalized solutions to a forager–exploiter model with superlinear degradation and their eventual regularity properties,” <i>Mathematical Models and Methods in Applied Sciences</i>, vol. 30, no. 06, pp. 1075–1117, 2020, doi: <a href=\"https://doi.org/10.1142/s0218202520400072\">10.1142/s0218202520400072</a>.","chicago":"Black, Tobias. “Global Generalized Solutions to a Forager–Exploiter Model with Superlinear Degradation and Their Eventual Regularity Properties.” <i>Mathematical Models and Methods in Applied Sciences</i> 30, no. 06 (2020): 1075–1117. <a href=\"https://doi.org/10.1142/s0218202520400072\">https://doi.org/10.1142/s0218202520400072</a>.","bibtex":"@article{Black_2020, title={Global generalized solutions to a forager–exploiter model with superlinear degradation and their eventual regularity properties}, volume={30}, DOI={<a href=\"https://doi.org/10.1142/s0218202520400072\">10.1142/s0218202520400072</a>}, number={06}, journal={Mathematical Models and Methods in Applied Sciences}, publisher={World Scientific Pub Co Pte Lt}, author={Black, Tobias}, year={2020}, pages={1075–1117} }","mla":"Black, Tobias. “Global Generalized Solutions to a Forager–Exploiter Model with Superlinear Degradation and Their Eventual Regularity Properties.” <i>Mathematical Models and Methods in Applied Sciences</i>, vol. 30, no. 06, World Scientific Pub Co Pte Lt, 2020, pp. 1075–117, doi:<a href=\"https://doi.org/10.1142/s0218202520400072\">10.1142/s0218202520400072</a>.","short":"T. Black, Mathematical Models and Methods in Applied Sciences 30 (2020) 1075–1117."},"intvolume":"        30","author":[{"full_name":"Black, Tobias","first_name":"Tobias","last_name":"Black","id":"23686","orcid":"0000-0001-9963-0800"}],"issue":"06","volume":30,"page":"1075-1117","type":"journal_article","publication":"Mathematical Models and Methods in Applied Sciences","user_id":"23686","keyword":["Applied Mathematics","Modeling and Simulation"],"doi":"10.1142/s0218202520400072","title":"Global generalized solutions to a forager–exploiter model with superlinear degradation and their eventual regularity properties"},{"date_created":"2019-12-16T17:50:08Z","year":"2019","publication_identifier":{"isbn":["978-9925-553-27-3"]},"language":[{"iso":"eng"}],"status":"public","_id":"15332","date_updated":"2022-07-26T11:41:41Z","conference":{"end_date":"2019-11-20","name":"ISSEP 2019 - 12th International conference on informatics in schools: Situation, evaluation and perspectives","location":"Lanarca","start_date":"2019-11-18"},"editor":[{"full_name":"Jasutė, Eglė","first_name":"Eglė","last_name":"Jasutė"},{"last_name":"Pozdniakov","full_name":"Pozdniakov, Sergei","first_name":"Sergei"}],"author":[{"orcid":"0000-0001-6600-6171","first_name":"Michael","full_name":"Schlichtig, Michael","id":"32312","last_name":"Schlichtig"},{"id":"72932","last_name":"Opel","first_name":"Simone Anna","full_name":"Opel, Simone Anna"},{"full_name":"Budde, Lea","first_name":"Lea","last_name":"Budde","id":"32443"},{"first_name":"Carsten","full_name":"Schulte, Carsten","id":"60311","last_name":"Schulte"}],"intvolume":"        12","citation":{"short":"M. Schlichtig, S.A. Opel, L. Budde, C. Schulte, in: E. Jasutė, S. Pozdniakov (Eds.), ISSEP 2019 - 12th International Conference on Informatics in Schools: Situation, Evaluation and Perspectives, Local Proceedings, 2019, pp. 65–73.","chicago":"Schlichtig, Michael, Simone Anna Opel, Lea Budde, and Carsten Schulte. “Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material.” In <i>ISSEP 2019 - 12th International Conference on Informatics in Schools: Situation, Evaluation and Perspectives, Local Proceedings</i>, edited by Eglė Jasutė and Sergei Pozdniakov, 12:65–73, 2019.","ieee":"M. Schlichtig, S. A. Opel, L. Budde, and C. Schulte, “Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material,” in <i>ISSEP 2019 - 12th International conference on informatics in schools: Situation, evaluation and perspectives, Local Proceedings</i>, Lanarca, 2019, vol. 12, pp. 65–73.","mla":"Schlichtig, Michael, et al. “Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material.” <i>ISSEP 2019 - 12th International Conference on Informatics in Schools: Situation, Evaluation and Perspectives, Local Proceedings</i>, edited by Eglė Jasutė and Sergei Pozdniakov, vol. 12, 2019, pp. 65–73.","apa":"Schlichtig, M., Opel, S. A., Budde, L., &#38; Schulte, C. (2019). Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material. In E. Jasutė &#38; S. Pozdniakov (Eds.), <i>ISSEP 2019 - 12th International conference on informatics in schools: Situation, evaluation and perspectives, Local Proceedings</i> (Vol. 12, pp. 65–73).","ama":"Schlichtig M, Opel SA, Budde L, Schulte C. Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material. In: Jasutė E, Pozdniakov S, eds. <i>ISSEP 2019 - 12th International Conference on Informatics in Schools: Situation, Evaluation and Perspectives, Local Proceedings</i>. Vol 12. ; 2019:65-73.","bibtex":"@inproceedings{Schlichtig_Opel_Budde_Schulte_2019, title={Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material}, volume={12}, booktitle={ISSEP 2019 - 12th International conference on informatics in schools: Situation, evaluation and perspectives, Local Proceedings}, author={Schlichtig, Michael and Opel, Simone Anna and Budde, Lea and Schulte, Carsten}, editor={Jasutė, Eglė and Pozdniakov, Sergei}, year={2019}, pages={65–73} }"},"publication_status":"published","department":[{"_id":"67"}],"publication":"ISSEP 2019 - 12th International conference on informatics in schools: Situation, evaluation and perspectives, Local Proceedings","quality_controlled":"1","type":"conference","page":"65 - 73","volume":12,"title":"Understanding Artificial Intelligence – A Project for the Development of Comprehensive Teaching Material","abstract":[{"lang":"eng","text":"Artificial intelligence (AI) has the potential for far-reaching – in our opinion – irreversible changes.\r\nThey range from effects on the individual and society to new societal and social issues. The question arises\r\nas to how students can learn the basic functioning of AI systems, what areas of life and society are affected\r\nby these and – most important – how their own lives are affected by these changes. Therefore, we are developing and evaluating school materials for the German ”Science Year AI”. It can be used for students of all\r\nschool types from the seventh grade upwards and will be distributed to about 2000 schools in autumn with\r\nthe support of the Federal Ministry of Education and Research. The material deals with the following aspects\r\nof AI: Discussing everyday experiences with AI, how does machine learning work, historical development\r\nof AI concepts, difference between man and machine, future distribution of roles between man and machine,\r\nin which AI world do we want to live and how much AI would we like to have in our lives. Through an\r\naccompanying evaluation, high quality of the technical content and didactic preparation is achieved in order\r\nto guarantee the long-term applicability in the teaching context in the different age groups and school types.\r\nIn this paper, we describe the current state of the material development, the challenges arising, and the results\r\nof tests with different classes to date. We also present first ideas for evaluating the results."}],"user_id":"32312","keyword":["Artificial Intelligence","Machine Learning","Teaching Material","Societal Aspects","Ethics. Social Aspects","Science Year","Simulation Game"],"main_file_link":[{"url":"http://cyprusconferences.org/issep2019/wp-content/uploads/2019/10/LocalISSEP-v5.pdf"}]},{"status":"public","language":[{"iso":"eng"}],"type":"dissertation","year":"2019","publisher":"Shaker","date_created":"2019-05-27T10:29:53Z","date_updated":"2023-09-15T12:23:55Z","_id":"10000","abstract":[{"lang":"eng","text":"Ultraschall wird zur Effizienzsteigerung in verfahrenstechnischen Prozessen eingesetzt. Die Betriebsparamter der Ultraschallsysteme werden empirisch ermittelt, da derzeit keine systematische Analyse der Wechselwirkung zwischen Ultraschallwandler und Schallfeld sowie kein Verfahren zur Messung der Kavitationsaktivität ohne zusätzlichen Sensor existieren. Auf Basis einer experimentellen Analyse des betrachteten sonochemischen Reaktors wird ein Finite-Elemente-Modell aufgebaut, das die Wechselwirkung zwischen Schallfeld und Ultraschallwandler berücksichtigt. Die modellbasierte Analyse zeigt, dass wegen der akustischen Eigenschaften des Autoklavs nur direkt an der Sonotrode Kavitation entsteht. Die Wechselwirkung zwischen Ultraschallwandler und Schallfeld ermöglicht Aussagen über das Schallfeld und die Kavitationsaktivität auf Basis der Rückwirkung auf den Ultraschallwandler. Die lineare Schalldruckverteilung ermöglicht eine Prognose über die Verteilung von Kavitationszonen. Das beschriebene Modell liefert wertvolle Erkenntnisse für die Auslegung, Analyse und Skalierung sonochemischer Reaktoren. Auf Grund der rauen Prozessrandbedingungen ist die Applikation von Sensoren zur Überwachung der Kavitationsaktivität in vielen sonochemischen Prozessen nicht möglich. Zur prozessbegleitenden Messung der Kavitationsaktivität wird ein Verfahren entwickelt, das die Bewertung der Kavitationsaktivität durch Auswertung der Rückwirkung auf den Ultraschallwandler erlaubt. Das Messverfahren ermöglicht eine vorhersagbare und reproduzierbare Durchführung kavitationsbasierter Prozesse und stellt eine wichtige Erweiterung für bestehende und neue Ultraschallsysteme dar."}],"author":[{"last_name":"Bornmann","full_name":"Bornmann, Peter","first_name":"Peter"}],"title":"Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen","department":[{"_id":"151"}],"keyword":["Sonochemie","Akustische Kavitation","Kavitationsmessung","Kavitationsdetektion","FEM-Simulation Ultraschallwandler","Prozessüberwachung","FEM-Simulation Schallfeld","Self-Sensing","Piezoelektrische Ultraschallwandler","Ultraschallreinigung"],"user_id":"210","citation":{"ieee":"P. Bornmann, <i>Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen</i>. Shaker, 2019.","chicago":"Bornmann, Peter. <i>Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen</i>. Shaker, 2019.","short":"P. Bornmann, Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen, Shaker, 2019.","apa":"Bornmann, P. (2019). <i>Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen</i>. Shaker.","bibtex":"@book{Bornmann_2019, title={Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen}, publisher={Shaker}, author={Bornmann, Peter}, year={2019} }","ama":"Bornmann P. <i>Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen</i>. Shaker; 2019.","mla":"Bornmann, Peter. <i>Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen</i>. Shaker, 2019."}},{"date_updated":"2022-01-06T06:50:46Z","_id":"10598","page":"219-224","language":[{"iso":"eng"}],"year":"2018","type":"conference","status":"public","date_created":"2019-07-10T09:21:38Z","publication":"26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)","department":[{"_id":"78"}],"citation":{"ieee":"M. Awais, H. Ghasemzadeh Mohammadi, and M. Platzner, “An MCTS-based Framework for Synthesis of Approximate Circuits,” in <i>26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)</i>, 2018, pp. 219–224.","chicago":"Awais, Muhammad, Hassan Ghasemzadeh Mohammadi, and Marco Platzner. “An MCTS-Based Framework for Synthesis of Approximate Circuits.” In <i>26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)</i>, 219–24, 2018. <a href=\"https://doi.org/10.1109/VLSI-SoC.2018.8645026\">https://doi.org/10.1109/VLSI-SoC.2018.8645026</a>.","apa":"Awais, M., Ghasemzadeh Mohammadi, H., &#38; Platzner, M. (2018). An MCTS-based Framework for Synthesis of Approximate Circuits. In <i>26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)</i> (pp. 219–224). <a href=\"https://doi.org/10.1109/VLSI-SoC.2018.8645026\">https://doi.org/10.1109/VLSI-SoC.2018.8645026</a>","ama":"Awais M, Ghasemzadeh Mohammadi H, Platzner M. An MCTS-based Framework for Synthesis of Approximate Circuits. In: <i>26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)</i>. ; 2018:219-224. doi:<a href=\"https://doi.org/10.1109/VLSI-SoC.2018.8645026\">10.1109/VLSI-SoC.2018.8645026</a>","short":"M. Awais, H. Ghasemzadeh Mohammadi, M. Platzner, in: 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2018, pp. 219–224.","bibtex":"@inproceedings{Awais_Ghasemzadeh Mohammadi_Platzner_2018, title={An MCTS-based Framework for Synthesis of Approximate Circuits}, DOI={<a href=\"https://doi.org/10.1109/VLSI-SoC.2018.8645026\">10.1109/VLSI-SoC.2018.8645026</a>}, booktitle={26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)}, author={Awais, Muhammad and Ghasemzadeh Mohammadi, Hassan and Platzner, Marco}, year={2018}, pages={219–224} }","mla":"Awais, Muhammad, et al. “An MCTS-Based Framework for Synthesis of Approximate Circuits.” <i>26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)</i>, 2018, pp. 219–24, doi:<a href=\"https://doi.org/10.1109/VLSI-SoC.2018.8645026\">10.1109/VLSI-SoC.2018.8645026</a>."},"keyword":["Approximate computing","High-level synthesis","Accuracy","Monte-Carlo tree search","Circuit simulation"],"user_id":"64665","abstract":[{"text":"Approximate computing has become a very popular design\r\nstrategy that exploits error resilient computations to achieve higher\r\nperformance and energy efficiency. Automated synthesis of approximate\r\ncircuits is performed via functional approximation, in which various\r\nparts of the target circuit are extensively examined with a library\r\nof approximate components/transformations to trade off the functional\r\naccuracy and computational budget (i.e., power). However, as the number\r\nof possible approximate transformations increases, traditional search\r\ntechniques suffer from a combinatorial explosion due to the large\r\nbranching factor. In this work, we present a comprehensive framework\r\nfor automated synthesis of approximate circuits from either structural\r\nor behavioral descriptions. We adapt the Monte Carlo Tree Search\r\n(MCTS), as a stochastic search technique, to deal with the large design\r\nspace exploration, which enables a broader range of potential possible\r\napproximations through lightweight random simulations. The proposed\r\nframework is able to recognize the design Pareto set even with low\r\ncomputational budgets. Experimental results highlight the capabilities of\r\nthe proposed synthesis framework by resulting in up to 61.69% energy\r\nsaving while maintaining the predefined quality constraints.","lang":"eng"}],"doi":"10.1109/VLSI-SoC.2018.8645026","title":"An MCTS-based Framework for Synthesis of Approximate Circuits","author":[{"orcid":"https://orcid.org/0000-0003-4148-2969","full_name":"Awais, Muhammad","first_name":"Muhammad","id":"64665","last_name":"Awais"},{"id":"61186","last_name":"Ghasemzadeh Mohammadi","full_name":"Ghasemzadeh Mohammadi, Hassan","first_name":"Hassan"},{"full_name":"Platzner, Marco","first_name":"Marco","last_name":"Platzner","id":"398"}]},{"abstract":[{"lang":"eng","text":"This study proposes a simple theoretical framework that allows for assessing financial distress up to five years in advance. We jointly model financial distress by using two of its key driving factors: declining cash-generating ability and insufficient liquidity reserves. The model is based on stochastic processes and incorporates firm-level and industry-sector developments. A large-scale empirical implementation for US-listed firms over the period of 1980-2010 shows important improvements in the discriminatory accuracy and demonstrates incremental information content beyond state-of-the-art accounting and market-based prediction models. Consequently, this study might provide important ex ante warning signals for investors, regulators and practitioners."}],"doi":"10.2139/ssrn.2237757","title":"Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence","author":[{"id":"46447","last_name":"Sievers","full_name":"Sievers, Sönke","first_name":"Sönke"},{"first_name":"Jan","full_name":"Klobucnik, Jan","last_name":"Klobucnik"},{"last_name":"Miersch","first_name":"David","full_name":"Miersch, David"}],"department":[{"_id":"275"}],"jel":["C63","C52","C53","G33","M41"],"citation":{"apa":"Sievers, S., Klobucnik, J., &#38; Miersch, D. (2017). <i>Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence</i>. <a href=\"https://doi.org/10.2139/ssrn.2237757\">https://doi.org/10.2139/ssrn.2237757</a>","ama":"Sievers S, Klobucnik J, Miersch D. <i>Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence</i>.; 2017. doi:<a href=\"https://doi.org/10.2139/ssrn.2237757\">10.2139/ssrn.2237757</a>","ieee":"S. Sievers, J. Klobucnik, and D. Miersch, <i>Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence</i>. 2017.","chicago":"Sievers, Sönke, Jan Klobucnik, and David Miersch. <i>Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence</i>, 2017. <a href=\"https://doi.org/10.2139/ssrn.2237757\">https://doi.org/10.2139/ssrn.2237757</a>.","bibtex":"@book{Sievers_Klobucnik_Miersch_2017, title={Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence}, DOI={<a href=\"https://doi.org/10.2139/ssrn.2237757\">10.2139/ssrn.2237757</a>}, author={Sievers, Sönke and Klobucnik, Jan and Miersch, David}, year={2017} }","mla":"Sievers, Sönke, et al. <i>Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence</i>. 2017, doi:<a href=\"https://doi.org/10.2139/ssrn.2237757\">10.2139/ssrn.2237757</a>.","short":"S. Sievers, J. Klobucnik, D. Miersch, Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence, 2017."},"keyword":["Financial distress prediction","probability of default","accounting information","stochastic processes","simulation"],"publication_status":"published","main_file_link":[{"url":"https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2237757"}],"user_id":"46447","language":[{"iso":"eng"}],"type":"working_paper","year":"2017","status":"public","date_created":"2021-01-05T11:44:45Z","date_updated":"2022-01-06T06:54:41Z","_id":"20868","page":"84"},{"title":"Analysis of pipe vibration in an ultrasonic powder transportationsystem","author":[{"id":"22130","last_name":"Dunst","first_name":"Paul","full_name":"Dunst, Paul"},{"id":"210","last_name":"Hemsel","full_name":"Hemsel, Tobias","first_name":"Tobias"},{"last_name":"Sextro","id":"21220","first_name":"Walter","full_name":"Sextro, Walter"}],"abstract":[{"lang":"eng","text":"The transportation of dry fine powders is an emerging technologic task, as in biotechnology, pharmaceu-tical and coatings industry the particle sizes of processed powders get smaller and smaller. Fine powdersare primarily defined by the fact that adhesive and cohesive forces outweigh the weight forces, leadingto mostly unwanted agglomeration (clumping) and adhesion to surfaces. Thereby it gets more difficult touse conventional conveyor systems (e.g. pneumatic or vibratory conveyors) for transport. A rather newmethod for transporting these fine powders is based on ultrasonic vibrations, which are used to reducefriction between powder and substrate. Within this contribution an experimental set-up consisting of apipe, a solenoid actuator for axial vibration and an annular piezoelectric actuator for the high frequencyradial vibration of the pipe is described. Since amplitudes of the radial pipe vibration should be as large aspossible to get high effects of friction reduction, the pipe is excited to vibrate in resonance. To determinethe optimum excitation frequency and actuator position the vibration modes and resonance frequenciesof the pipe are calculated and measured. Results are in good accordance."}],"citation":{"apa":"Dunst, P., Hemsel, T., &#38; Sextro, W. (2017). Analysis of pipe vibration in an ultrasonic powder transportationsystem. <i>Elsevier</i>, <i>Sensors and Actuators A 263</i>, 733–736.","ama":"Dunst P, Hemsel T, Sextro W. Analysis of pipe vibration in an ultrasonic powder transportationsystem. <i>elsevier</i>. 2017;Sensors and Actuators A 263:733-736.","chicago":"Dunst, Paul, Tobias Hemsel, and Walter Sextro. “Analysis of Pipe Vibration in an Ultrasonic Powder Transportationsystem.” <i>Elsevier</i> Sensors and Actuators A 263 (2017): 733–36.","ieee":"P. Dunst, T. Hemsel, and W. Sextro, “Analysis of pipe vibration in an ultrasonic powder transportationsystem,” <i>elsevier</i>, vol. Sensors and Actuators A 263, pp. 733–736, 2017.","mla":"Dunst, Paul, et al. “Analysis of Pipe Vibration in an Ultrasonic Powder Transportationsystem.” <i>Elsevier</i>, vol. Sensors and Actuators A 263, 2017, pp. 733–36.","bibtex":"@article{Dunst_Hemsel_Sextro_2017, title={Analysis of pipe vibration in an ultrasonic powder transportationsystem}, volume={Sensors and Actuators A 263}, journal={elsevier}, author={Dunst, Paul and Hemsel, Tobias and Sextro, Walter}, year={2017}, pages={733–736} }","short":"P. Dunst, T. Hemsel, W. Sextro, Elsevier Sensors and Actuators A 263 (2017) 733–736."},"user_id":"55222","keyword":["Powder transport Piezoelectrics Ultrasonics Pipe vibration Finite element simulation Fine powder"],"department":[{"_id":"151"}],"publication":"elsevier","quality_controlled":"1","date_created":"2019-05-27T09:31:13Z","type":"journal_article","year":"2017","language":[{"iso":"eng"}],"status":"public","_id":"9972","page":"733-736","volume":"Sensors and Actuators A 263","date_updated":"2019-09-16T10:23:40Z"},{"_id":"5199","date_updated":"2022-01-06T07:01:43Z","date_created":"2018-10-31T12:19:42Z","publication":"SSRN Electronic Journal","language":[{"iso":"eng"}],"type":"journal_article","year":"2017","status":"public","citation":{"short":"J. Klobucnik, D. Miersch, S. Sievers, SSRN Electronic Journal (2017).","mla":"Klobucnik, Jan, et al. “Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence.” <i>SSRN Electronic Journal</i>, 2017.","bibtex":"@article{Klobucnik_Miersch_Sievers_2017, title={Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence}, journal={SSRN Electronic Journal}, author={Klobucnik, Jan and Miersch, David and Sievers, Sönke}, year={2017} }","chicago":"Klobucnik, Jan, David Miersch, and Sönke Sievers. “Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence.” <i>SSRN Electronic Journal</i>, 2017.","ieee":"J. Klobucnik, D. Miersch, and S. Sievers, “Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence,” <i>SSRN Electronic Journal</i>, 2017.","ama":"Klobucnik J, Miersch D, Sievers S. Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence. <i>SSRN Electronic Journal</i>. 2017.","apa":"Klobucnik, J., Miersch, D., &#38; Sievers, S. (2017). Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence. <i>SSRN Electronic Journal</i>."},"keyword":["Financial distress prediction","probability of default","accounting information","stochastic processes","simulation"],"publication_status":"published","user_id":"64756","department":[{"_id":"275"}],"jel":["C63","C52","C53","G33","M41"],"title":"Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence","author":[{"full_name":"Klobucnik, Jan","first_name":"Jan","last_name":"Klobucnik"},{"last_name":"Miersch","full_name":"Miersch, David","first_name":"David"},{"first_name":"Sönke","full_name":"Sievers, Sönke","last_name":"Sievers"}],"abstract":[{"lang":"eng","text":"This study proposes a simple theoretical framework that allows for assessing financial distress up to five years in advance. We jointly model financial distress by using two of its key driving factors: declining cash-generating ability and insufficient liquidity reserves. The model is based on stochastic processes and incorporates firm-level and industry-sector developments. A large-scale empirical implementation for US-listed firms over the period of 1980-2010 shows important improvements in the discriminatory accuracy and demonstrates incremental information content beyond state-of-the-art accounting and market-based prediction models. Consequently, this study might provide important ex ante warning signals for investors, regulators and practitioners. "}]},{"date_created":"2019-05-27T08:47:52Z","publication":"IEEE 66th Electronic Components and Technology Conference","quality_controlled":"1","status":"public","language":[{"iso":"eng"}],"type":"conference","year":"2016","page":"2103-2110","_id":"9955","date_updated":"2020-05-07T05:33:52Z","author":[{"full_name":"Althoff, Simon","first_name":"Simon","last_name":"Althoff"},{"last_name":"Meyer","full_name":"Meyer, Tobias","first_name":"Tobias"},{"last_name":"Unger","full_name":"Unger, Andreas","first_name":"Andreas"},{"first_name":"Walter","full_name":"Sextro, Walter","id":"21220","last_name":"Sextro"},{"full_name":"Eacock, Florian","first_name":"Florian","last_name":"Eacock"}],"title":"Shape-Dependent Transmittable Tangential Force of Wire Bond Tools","abstract":[{"lang":"eng","text":"Wire bonding has been an established packaging technology for decades. When introducing copper as wire material for high power applications, adaptations to the bonding process and to machines became necessary. Here, challenges occur due to the stiffer wire material and changing oxide layers on the contact partners. To achieve sufficient process stability, a clean bond area is required, which can only be achieved with high shear stresses in the contact partners surfaces. These necessitate high normal forces to plastically deform the wire and substrate. To achieve such high stresses in the contact area, the bonding tool needs to be able to transmit the needed tangential forces to the top side of the wire. The wire itself performs a shear movement and transmits the force into the contact area to clean the contaminant and oxide layers and to level the desired bond surfaces. The main function of the tool is to transmit these forces. If the bond tool can only transmit low forces in the direction of excitation, the parameter space for a stable bond process is severely restricted. Here, a modeling approach to estimate how well different tool shapes meet the demand of transmitting high tangential forces is presented. The model depends on wire deformation and thus on the ultrasonic softening effect."}],"doi":"10.1109/ECTC.2016.234","project":[{"grant_number":"02 PQ2210","name":"Intelligente Herstellung zuverlässiger Kupferbondverbindungen","_id":"92"}],"keyword":["finite element simulation","wire bonding","tool geometry"],"user_id":"210","citation":{"chicago":"Althoff, Simon, Tobias Meyer, Andreas Unger, Walter Sextro, and Florian Eacock. “Shape-Dependent Transmittable Tangential Force of Wire Bond Tools.” In <i>IEEE 66th Electronic Components and Technology Conference</i>, 2103–10, 2016. <a href=\"https://doi.org/10.1109/ECTC.2016.234\">https://doi.org/10.1109/ECTC.2016.234</a>.","ieee":"S. Althoff, T. Meyer, A. Unger, W. Sextro, and F. Eacock, “Shape-Dependent Transmittable Tangential Force of Wire Bond Tools,” in <i>IEEE 66th Electronic Components and Technology Conference</i>, 2016, pp. 2103–2110.","apa":"Althoff, S., Meyer, T., Unger, A., Sextro, W., &#38; Eacock, F. (2016). Shape-Dependent Transmittable Tangential Force of Wire Bond Tools. In <i>IEEE 66th Electronic Components and Technology Conference</i> (pp. 2103–2110). <a href=\"https://doi.org/10.1109/ECTC.2016.234\">https://doi.org/10.1109/ECTC.2016.234</a>","ama":"Althoff S, Meyer T, Unger A, Sextro W, Eacock F. Shape-Dependent Transmittable Tangential Force of Wire Bond Tools. In: <i>IEEE 66th Electronic Components and Technology Conference</i>. ; 2016:2103-2110. doi:<a href=\"https://doi.org/10.1109/ECTC.2016.234\">10.1109/ECTC.2016.234</a>","short":"S. Althoff, T. Meyer, A. Unger, W. Sextro, F. Eacock, in: IEEE 66th Electronic Components and Technology Conference, 2016, pp. 2103–2110.","mla":"Althoff, Simon, et al. “Shape-Dependent Transmittable Tangential Force of Wire Bond Tools.” <i>IEEE 66th Electronic Components and Technology Conference</i>, 2016, pp. 2103–10, doi:<a href=\"https://doi.org/10.1109/ECTC.2016.234\">10.1109/ECTC.2016.234</a>.","bibtex":"@inproceedings{Althoff_Meyer_Unger_Sextro_Eacock_2016, title={Shape-Dependent Transmittable Tangential Force of Wire Bond Tools}, DOI={<a href=\"https://doi.org/10.1109/ECTC.2016.234\">10.1109/ECTC.2016.234</a>}, booktitle={IEEE 66th Electronic Components and Technology Conference}, author={Althoff, Simon and Meyer, Tobias and Unger, Andreas and Sextro, Walter and Eacock, Florian}, year={2016}, pages={2103–2110} }"},"department":[{"_id":"151"}]},{"title":"Nash Equilibria in Shared Effort Games","extern":"1","author":[{"first_name":"Gleb","full_name":"Polevoy, Gleb","id":"83983","last_name":"Polevoy"},{"full_name":"Trajanovski, Stojan","first_name":"Stojan","last_name":"Trajanovski"},{"first_name":"Mathijs M.","full_name":"de Weerdt, Mathijs M.","last_name":"de Weerdt"}],"place":"Richland, SC","citation":{"short":"G. Polevoy, S. Trajanovski, M.M. de Weerdt, in: Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems, International Foundation for Autonomous Agents and Multiagent Systems, Richland, SC, 2014, pp. 861–868.","mla":"Polevoy, Gleb, et al. “Nash Equilibria in Shared Effort Games.” <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>, International Foundation for Autonomous Agents and Multiagent Systems, 2014, pp. 861–68.","bibtex":"@inproceedings{Polevoy_Trajanovski_de Weerdt_2014, place={Richland, SC}, series={AAMAS ’14}, title={Nash Equilibria in Shared Effort Games}, booktitle={Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems}, publisher={International Foundation for Autonomous Agents and Multiagent Systems}, author={Polevoy, Gleb and Trajanovski, Stojan and de Weerdt, Mathijs M.}, year={2014}, pages={861–868}, collection={AAMAS ’14} }","chicago":"Polevoy, Gleb, Stojan Trajanovski, and Mathijs M. de Weerdt. “Nash Equilibria in Shared Effort Games.” In <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>, 861–68. AAMAS ’14. Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems, 2014.","ieee":"G. Polevoy, S. Trajanovski, and M. M. de Weerdt, “Nash Equilibria in Shared Effort Games,” in <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i>, 2014, pp. 861–868.","apa":"Polevoy, G., Trajanovski, S., &#38; de Weerdt, M. M. (2014). Nash Equilibria in Shared Effort Games. In <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i> (pp. 861–868). Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems.","ama":"Polevoy G, Trajanovski S, de Weerdt MM. Nash Equilibria in Shared Effort Games. In: <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>. AAMAS ’14. Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems; 2014:861-868."},"series_title":"AAMAS '14","keyword":["competition","equilibrium","market","models","shared effort games","simulation"],"user_id":"83983","department":[{"_id":"63"},{"_id":"541"}],"date_created":"2020-08-06T15:21:26Z","publication":"Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems","publisher":"International Foundation for Autonomous Agents and Multiagent Systems","language":[{"iso":"eng"}],"publication_identifier":{"isbn":["978-1-4503-2738-1"]},"year":"2014","type":"conference","status":"public","page":"861-868","_id":"17659","date_updated":"2022-01-06T06:53:16Z"},{"date_updated":"2022-01-06T06:53:16Z","_id":"17661","page":"1651-1652","publication_identifier":{"isbn":["978-1-4503-2738-1"]},"type":"conference","year":"2014","language":[{"iso":"eng"}],"status":"public","publication":"Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems","date_created":"2020-08-06T15:21:45Z","publisher":"International Foundation for Autonomous Agents and Multiagent Systems","department":[{"_id":"63"},{"_id":"541"}],"series_title":"AAMAS '14","citation":{"apa":"King, T. C., Liu, Q., Polevoy, G., de Weerdt, M., Dignum, V., van Riemsdijk, M. B., &#38; Warnier, M. (2014). Request Driven Social Sensing. In <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i> (pp. 1651–1652). Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems.","ama":"King TC, Liu Q, Polevoy G, et al. Request Driven Social Sensing. In: <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>. AAMAS ’14. Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems; 2014:1651-1652.","ieee":"T. C. King <i>et al.</i>, “Request Driven Social Sensing,” in <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i>, 2014, pp. 1651–1652.","chicago":"King, Thomas C., Qingzhi Liu, Gleb Polevoy, Mathijs de Weerdt, Virginia Dignum, M. Birna van Riemsdijk, and Martijn Warnier. “Request Driven Social Sensing.” In <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>, 1651–52. AAMAS ’14. Richland, SC: International Foundation for Autonomous Agents and Multiagent Systems, 2014.","bibtex":"@inproceedings{King_Liu_Polevoy_de Weerdt_Dignum_van Riemsdijk_Warnier_2014, place={Richland, SC}, series={AAMAS ’14}, title={Request Driven Social Sensing}, booktitle={Proceedings of the 2014 International Conference on Autonomous Agents and Multi-agent Systems}, publisher={International Foundation for Autonomous Agents and Multiagent Systems}, author={King, Thomas C. and Liu, Qingzhi and Polevoy, Gleb and de Weerdt, Mathijs and Dignum, Virginia and van Riemsdijk, M. Birna and Warnier, Martijn}, year={2014}, pages={1651–1652}, collection={AAMAS ’14} }","mla":"King, Thomas C., et al. “Request Driven Social Sensing.” <i>Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>, International Foundation for Autonomous Agents and Multiagent Systems, 2014, pp. 1651–52.","short":"T.C. King, Q. Liu, G. Polevoy, M. de Weerdt, V. Dignum, M.B. van Riemsdijk, M. Warnier, in: Proceedings of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems, International Foundation for Autonomous Agents and Multiagent Systems, Richland, SC, 2014, pp. 1651–1652."},"user_id":"83983","keyword":["crowd-sensing","crowdsourcing","data aggregation","game theory","norms","reciprocation","self interested agents","simulation"],"place":"Richland, SC","title":"Request Driven Social Sensing","author":[{"full_name":"King, Thomas C.","first_name":"Thomas C.","last_name":"King"},{"full_name":"Liu, Qingzhi","first_name":"Qingzhi","last_name":"Liu"},{"id":"83983","last_name":"Polevoy","full_name":"Polevoy, Gleb","first_name":"Gleb"},{"last_name":"de Weerdt","full_name":"de Weerdt, Mathijs","first_name":"Mathijs"},{"full_name":"Dignum, Virginia","first_name":"Virginia","last_name":"Dignum"},{"first_name":"M. Birna","full_name":"van Riemsdijk, M. Birna","last_name":"van Riemsdijk"},{"last_name":"Warnier","first_name":"Martijn","full_name":"Warnier, Martijn"}],"extern":"1"}]