TY  - CHAP
A1  - Böhnisch, Nils
A1  - Braun, Carsten
T1  - The effect of aerodynamic interactions on aeroelastic stability in wing-propeller systems
T2  - IFASD2024 Proceedings
N2  - This paper presents initial findings from aeroelastic studies conducted on a wing-propeller model, aimed at evaluating the impact of aerodynamic interactions on wing flutter mechanisms and overall aeroelastic performance. Utilizing a frequency domain method, the flutter onset within a specified flight speed range is assessed. Mid-fidelity tools with a time domain approach are then used to account for the complex aerodynamic interaction between the propeller and the wing. Specifically, open-source software DUST and MBDyn are leveraged for this purpose. This investigation covers both windmilling and thrusting conditions of the wing-propeller model. During the trim process, adjustments to the collective pitch of the blades are made to ensure consistency across operational points. Time histories are then analyzed to pinpoint flutter onset, and corresponding frequencies and damping ratios are meticulously identified. The results reveal a marginal destabilizing effect of aerodynamic interaction on flutter speed, approximately 5%. Notably, the thrusting condition demonstrates a greater destabilizing influence compared to windmilling. These comprehensive findings enhance the understanding of the aerodynamic behavior of such systems and offer valuable insights for early design predictions and the development of streamlined models for future endeavors.
Y1  - 2024
ER  - 
TY  - CHAP
A1  - Luft, Nils
A1  - Besenfelder, Christoph
T1  - Flexibility based assessment of production system robustness
T2  - Procedia 2nd CIRP Robust Manufacturing Conference (RoMac 2014)
N2  - Manufacturing companies are forced to operate in an increasingly volatile and unpredictabl environment. The number of events that can have a potentially critical impact on a production system‘s economic performance have significantly increased. This forces companies to invest considerably more in flexible and robust production systems capable of withstanding a certain amount of change however unable to quantify the benefits in advance. The satisfactory quantification and assessment of these qualities – Flexibility and Robustness –has not been realized yet. This paper discusses commonality between Flexibility and Robustness and offers a new approach to connect changes in the environment with the elements of a production system and thus quantifying its flexibility and robustness.
KW  - Flexibility induced robustness
KW  - Robust factory design
KW  - Robust capacity planning
KW  - Strategic  flexibility design
Y1  - 2014
U6  - https://doi.org/0.1016/j.procir.2014.06.141
SN  - 2212-8271
N1  - 2nd CIRP Robust Manufacturing Conference (RoMac 2014), Bremen, Germany, 7 - 9 July 2014
VL  - 19
SP  - 81
EP  - 86
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Kramer, Pia
A1  - Bragard, Michael
A1  - Ritz, Thomas
A1  - Ferfer, Ute
A1  - Schiffers, Tim
T1  - Visualizing, Enhancing and Predicting Students’ Success through ECTS Monitoring
T2  - 2024 IEEE Global Engineering Education Conference (EDUCON)
N2  - This paper serves as an introduction to the ECTS monitoring system and its potential applications in higher education. It also emphasizes the potential for ECTS monitoring to become a proactive system, supporting students by predicting academic success and identifying groups of potential dropouts for tailored support services. The use of the nearest neighbor analysis is suggested for improving data analysis and prediction accuracy.
KW  - Monitoring
KW  - Engineering education
KW  - Data visualization
KW  - Accuracy
KW  - Data analysis
Y1  - 2024
U6  - https://doi.org/10.1109/EDUCON60312.2024.10578652
SN  - 2165-9559
SN  - 2165-9567 (eISSN)
N1  - 2024 IEEE Global Engineering Education Conference (EDUCON), 08-11 May 2024, Kos Island, Greece
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Rütters, René
A1  - Bragard, Michael
A1  - Dolls, Sarah
T1  - The Inverted Rotary Pendulum: Facilitating Practical Teaching in Advanced Control Engineering
T2  - 2024 IEEE Global Engineering Education Conference (EDUCON)
N2  - This paper outlines a practical approach to teach control engineering principles, with an inverted rotary pendulum, serving as an illustrative example. It shows how the pendulum is embedded in an advanced course of control engineering. This approach is incorporated into a flipped-classroom concept, as well as classical teaching concepts, offering students practical experience in control engineering. In addition, the design of the pendulum is shown, using a Raspberry Pi as the target platform for Matlab Simulink. This pendulum can be used in the classroom to evaluate the controller design mentioned above. It is analysed if the use of the pendulum generates a deeper understanding of the learning contents.
KW  - Matlab
KW  - Engineering education
KW  - Online services
KW  - Software packages
KW  - Electronic learning
KW  - Control engineering
Y1  - 2024
U6  - https://doi.org/10.1109/EDUCON60312.2024.10578937
SN  - 2165-9559
SN  - 2165-9567 (eISSN)
N1  - 2024 IEEE Global Engineering Education Conference (EDUCON), 08-11 May 2024, Kos Island, Greece
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Bremm, Florian
A1  - Blaneck, Patrick Gustav
A1  - Bornheim, Tobias
A1  - Grieger, Niklas
A1  - Bialonski, Stephan
T1  - Detecting Sexism in German Online Newspaper Comments with Open-Source Text Embeddings (Team GDA, GermEval2024 Shared Task 1: GerMS-Detect, Subtasks 1 and 2, Closed Track)
T2  - Proceedings of GermEval 2024 Task 1 GerMS-Detect Workshop on Sexism Detection in German Online News Fora (GerMS-Detect 2024)
N2  - Sexism in online media comments is a pervasive challenge that often manifests subtly, complicating moderation efforts as interpretations of what constitutes sexism can vary among individuals. We study monolingual and multilingual open-source text embeddings to reliably detect sexism and misogyny in Germanlanguage online comments from an Austrian newspaper. We observed classifiers trained on text embeddings to mimic closely the individual judgements of human annotators. Our method showed robust performance in the GermEval 2024 GerMS-Detect Subtask 1 challenge, achieving an average macro F1 score of 0.597 (4th place, as reported on Codabench). It also accurately predicted the distribution of human annotations in GerMS-Detect Subtask 2, with an average Jensen-Shannon distance of 0.301 (2nd place). The computational efficiency of our approach suggests potential for scalable applications across various languages and linguistic contexts.
Y1  - 2024
U6  - https://doi.org/10.48550/arXiv.2403.08592
N1  - GermEval 2024 Task 1 GerMS-Detect Workshop on Sexism Detection in German Online News Fora (GerMS-Detect 2024), September 2024, Vienna, Austria
SP  - 33
EP  - 38
PB  - ACL
CY  - Kerrville
ER  - 
TY  - CHAP
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Fuzzy representations and control for domestic service robots in Golog
T2  - Intelligent Robotics and Applications, 4th International Conference, ICIRA 2011, Proceedings Part II
N2  - In the RoboCup@Home domestic service robot competition, complex tasks such as "get the cup from the kitchen and bring it to the living room" or "find me this and that object in the apartment" have to be accomplished. At these competitions the robots may only be instructed by natural language. As humans use qualitative concepts such as "near" or "far", the robot needs to cope with them, too. For our domestic robot, we use the robot programming and plan language Readylog, our variant of Golog. In previous work we extended the action language Golog, which was developed for the high-level control of agents and robots, with fuzzy concepts and showed how to embed fuzzy controllers in Golog. In this paper, we demonstrate how these notions can be fruitfully applied to two domestic service robotic scenarios. In the first application, we demonstrate how qualitative fluents based on a fuzzy set semantics can be deployed. In the second program, we show an example of a fuzzy controller for a follow-a-person task.
Y1  - 2011
SN  - 978-3-642-25486-4
U6  - https://doi.org/10.1007/978-3-642-25489-5_24
N1  - Intelligent Robotics and Applications, 4th International Conference, ICIRA 2011, Aachen, Germany, December 6-8, 2011
N1  - Part of the book series: Lecture Notes in Computer Science (LNCS, volume 7102)
SP  - 241
EP  - 250
PB  - ACM
CY  - New York
ER  - 
TY  - CHAP
A1  - Michaux, Frank
A1  - Brunn, André
A1  - Willert, Christian
A1  - Kallweit, Stephan
T1  - Automatic setup and calibration of a Robotic-PIV system using fiducial markers
T2  - 21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics
N2  - The use of industrial robots allows the precise manipulation of all components necessary for setting up a large-scale particle image velocimetry (PIV) system. The known internal calibration matrix of the cameras in combination with the actual pose of the industrial robots and the calculated transform from the fiducial markers to camera coordinates allow the precise positioning of the individual PIV components according to the measurement demands. In addition, the complete calibration procedure for generating the external camera matrix and the mapping functions for e.g. dewarping the stereo images can be automatically determined without further user interaction and thus the degree of automation can be extended to nearly 100%. This increased degree of automation expands the applications range of PIV systems, in particular for measurement tasks with severe time constraints.
KW  - PIV calibration
KW  - Automation
KW  - Robotics
KW  - Fiducial marker system
KW  - Recognition algorithms
Y1  - 2024
U6  - https://doi.org/10.55037/lxlaser.21st.163
N1  - 21st International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Lisbon, Portugal, July 8-11, 2024
ER  - 
TY  - CHAP
A1  - Eggert, Matthias
A1  - Schwarz, Jakob
T1  - What do enterprise collaboration systems afford to digital startups?
T2  - ECIS 2024 Proceedings
N2  - In recent years, more and more digital startups have been founded and many of them work remotely by applying enterprise collaboration systems (ECS). The study investigates the functional affordances of ECS, particularly Slack, and examines its potential as a virtual office environment for cultural development in digital startups. Through a case study and based on affordance theoretical considerations, the paper explores how ECS facilitates remote collaboration, communication, and socialization within digital startups. The findings comprise material properties of ECS (synchrony and asynchrony communication), functional affordances (virtual office and culture development affordances) as well as its realization (through communication practices, openness, and inter-company accessibility) and are conceptualized as a model for ECS affordances in digital startups.
Y1  - 2024
N1  - ECIS 2024, European Conference on Information Systems, Paphos, Cyprus, 13-19 June 2024
ER  - 
TY  - CHAP
A1  - Brandini, Frederico Pereira
A1  - Baumann, Marcus
T1  - The potential role of melted 'brown ice' as sources of chelators and ammonia to the surface waters of the Weddell Sea, Antarctica
T2  - Proceedings of the NIPR Symposium on Polar Biology : 10
Y1  - 1997
SN  - 0914-563X
SP  - 1
EP  - 13
CY  - Tokyo
ER  - 
TY  - CHAP
A1  - Richter, Charlotte
A1  - Braunstein, Bjoern
A1  - Stäudle, Benjamin
A1  - Attias, Julia
A1  - Suess, Alexander
A1  - Weber, T.
A1  - Rittweger, Joern
A1  - Green, David A.
A1  - Albracht, Kirsten
T1  - In vivo fascicle length of the gastrocnemius muscle during walking in simulated martian gravity using two different body weight support devices
T2  - 23rd Annual Congress of the European College of Sport Science, Dublin, Irland
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Goldmann, Jan-Peter
A1  - Braunstein, Bjoern
A1  - Heinrich, Kai
A1  - Sanno, Maximilian
A1  - Stäudle, Benjamin
A1  - Ritzdorf, Wolfgang
A1  - Brüggemann, Gert-Peter
A1  - Albracht, Kirsten
T1  - Joint work of the take-off leg during elite high jump
T2  - Proceedings of the 33th International Conference on Biomechanics in Sports (ISBS)
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schubert, J.
A1  - Ermelenko, Y.
A1  - Vlasov, Y. G.
A1  - Bratov, Andrey V.
A1  - Schöning, Michael Josef
T1  - Thin-film sensors with chalcogenide glass materials – a general survey
T2  - Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...
Y1  - 2006
SP  - 92
EP  - 97
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Ketelhut, Maike
A1  - Göll, Fabian
A1  - Braunstein, Bjoern
A1  - Albracht, Kirsten
A1  - Abel, Dirk
T1  - Iterative learning control of an industrial robot for neuromuscular training
T2  - 2019 IEEE Conference on Control Technology and Applications
N2  - Effective training requires high muscle forces potentially leading to training-induced injuries. Thus, continuous monitoring and controlling of the loadings applied to the musculoskeletal system along the motion trajectory is required. In this paper, a norm-optimal iterative learning control algorithm for the robot-assisted training is developed. The algorithm aims at minimizing the external knee joint moment, which is commonly used to quantify the loading of the medial compartment. To estimate the external knee joint moment, a musculoskeletal lower extremity model is implemented in OpenSim and coupled with a model of an industrial robot and a force plate mounted at its end-effector. The algorithm is tested in simulation for patients with varus, normal and valgus alignment of the knee. The results show that the algorithm is able to minimize the external knee joint moment in all three cases and converges after less than seven iterations.
KW  - Knee
KW  - Training
KW  - Load modeling
KW  - Force
KW  - Iterative learning control
Y1  - 2019
SN  - 978-1-7281-2767-5 (ePub)
SN  - 978-1-7281-2766-8 (USB)
SN  - 978-1-7281-2768-2 (PoD)
U6  - https://doi.org/10.1109/CCTA.2019.8920659
N1  - 2019 IEEE Conference on Control Technology and Applications (CCTA) Hong Kong, China, August 19-21, 2019
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Schütz, Philip
A1  - Breuer, Michael
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Malware proof on mobile phone exhibits based on GSM/GPRS traces
T2  - The Second International Conference on Cyber Security, Cyber Peacefare and Digital Forensic (CyberSec 2013) : 04.03. - 06.03.2013, Kuala Lumpur, Malaysia
Y1  - 2013
SN  - 978-0-9853483-7-3
SP  - 89
EP  - 96
PB  - The Society of Digital Information and Wireless Communication
ER  - 
TY  - CHAP
A1  - Braunstein, Bjoern
A1  - Goldmann, Jan-Peter
A1  - Albracht, Kirsten
A1  - Sanno, Maximilian
A1  - Willwacher, Steffen
A1  - Heinrich, Kai
A1  - Herrmann, Volker
A1  - Brüggemann, Gert-Peter
T1  - Joint specific contribution of mechanical power and work during acceleration and top speed in elite sprinters
T2  - 31 International Conference on Biomechanics in Sports, Taipei, Taiwan, July 07 - July 22, 2013
Y1  - 2013
SN  - 1999-4168
ER  - 
TY  - CHAP
A1  - Bitz, Andreas
A1  - Kraff, O.
A1  - Orzada, S.
A1  - Maderwald, S.
A1  - Brote, Irina
A1  - Johst, S.
A1  - Ladd, E.
T1  - Assessment of RF Safety of Transmit Coils at 7 Tesla by Experimental and Numerical Procedures (490.)
T2  - 19th annual ISMRM scientific meeting and exhibition 2011 : Montreal, Quebec, Canada, 7 - 13 May 2011
Y1  - 2012
SN  - 978-1-61839-284-8
IS  - Volume 1
SP  - 475
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Droszez, Anna
A1  - Sanno, Maximilian
A1  - Goldmann, Jan-Peter
A1  - Albracht, Kirsten
A1  - Brüggemann, Gert-Peter
A1  - Braunstein, Bjoern
T1  - Differences between take-off behavior during vertical jumps and two artistic elements
T2  - 34th International Conference of Biomechanics in Sport, Tsukuba, Japan, July 18-22, 2016
Y1  - 2016
SN  - 1999-4168
SP  - 577
EP  - 580
ER  - 
TY  - CHAP
A1  - Moreno, Lia
A1  - Dosev, D.
A1  - Bratov, Andrey V.
A1  - Dominguez, C.
A1  - Schöning, Michael Josef
A1  - Kloock, Joachim P.
T1  - Effect of electrical properties of the surrounding medium on the response of an interdigitated electrode array with chalcogenide glass film
T2  - XX Eurosensors : 20th anniversary ; Göteborg, Sweden, 17 - 20 September 2006 ; [proceedings]. - Vol. 1
Y1  - 2006
SN  - 978-91-631-9280-7
N1  - Paper number: T1A-P22
SP  - 384
EP  - 385
CY  - Göteborg
ER  - 
TY  - CHAP
A1  - Bitz, Andreas
A1  - Kraff, O.
A1  - Orzada, S.
A1  - Maderwald, S.
A1  - Brote, Irina
A1  - Ladd, M.
T1  - Experimental and Numerical Assessment of RF Safety of Transmit Coils at 7 Tesla
T2  - ISMRM workshop on MR safety 2010 : RF heating of the human in MRI : workshop series. The Washington County Historic Courthouse, Stillwater, Minnesota, USA, 15 - 17 October 2010
Y1  - 2010
SN  - 978-1-62276-088-6
SP  - 195
ER  - 
TY  - CHAP
A1  - Ulmer, Jessica
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg F.
T1  - Adapting augmented reality systems to the users’ needs using gamification and error solving methods
T2  - Procedia CIRP - 54th CIRP CMS 2021 - Towards Digitalized Manufacturing 4.0
N2  - Animations of virtual items in AR support systems are typically predefined and lack interactions with dynamic physical environments. AR applications rarely consider users’ preferences and do not provide customized spontaneous support under unknown situations. This research focuses on developing adaptive, error-tolerant AR systems based on directed acyclic graphs and error resolving strategies. Using this approach, users will have more freedom of choice during AR supported work, which leads to more efficient workflows. Error correction methods based on CAD models and predefined process data create individual support possibilities. The framework is implemented in the Industry 4.0 model factory at FH Aachen.
KW  - Augmented Reality
KW  - Adaptive Systems
KW  - Gamification
KW  - Error Recovery
Y1  - 2021
U6  - https://doi.org/10.1016/j.procir.2021.11.024
SN  - 2212-8271
N1  - CIRP CMS 2021 - 54th CIRP Conference on Manufacturing Systems, September 22-24, 2021, online
VL  - 104
SP  - 140
EP  - 145
PB  - Elsevier
CY  - Amsterdam
ER  -