TY  - JOUR
A1  - Neu, Eugen
A1  - Janser, Frank
A1  - Khatibi, Akbar A.
A1  - Braun, Carsten
A1  - Orifici, Adrian C.
T1  - Operational Modal Analysis of a wing excited by transonic flow
JF  - Aerospace Science and Technology
N2  - Operational Modal Analysis (OMA) is a promising candidate for flutter testing and Structural Health Monitoring (SHM) of aircraft wings that are passively excited by wind loads. However, no studies have been published where OMA is tested in transonic flows, which is the dominant condition for large civil aircraft and is characterized by complex and unique aerodynamic phenomena. We use data from the HIRENASD large-scale wind tunnel experiment to automatically extract modal parameters from an ambiently excited wing operated in the transonic regime using two OMA methods: Stochastic Subspace Identification (SSI) and Frequency Domain Decomposition (FDD). The system response is evaluated based on accelerometer measurements. The excitation is investigated from surface pressure measurements. The forcing function is shown to be non-white, non-stationary and contaminated by narrow-banded transonic disturbances. All these properties violate fundamental OMA assumptions about the forcing function. Despite this, all physical modes in the investigated frequency range were successfully identified, and in addition transonic pressure waves were identified as physical modes as well. The SSI method showed superior identification capabilities for the investigated case. The investigation shows that complex transonic flows can interfere with OMA. This can make existing approaches for modal tracking unsuitable for their application to aircraft wings operated in the transonic flight regime. Approaches to separate the true physical modes from the transonic disturbances are discussed.
Y1  - 2016
U6  - https://doi.org/10.1016/j.ast.2015.11.032
SN  - 1270-9638
VL  - 49
SP  - 73
EP  - 79
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Mertens, Alexander
A1  - Pütz, Sebastian
A1  - Brauner, Philipp
A1  - Brillowski, Florian Sascha
A1  - Buczak, Nadine
A1  - Dammers, Hannah
A1  - van Dyck, Marc
A1  - Kong, Iris
A1  - Königs, Peter
A1  - Kortomeikel, Frauke Carole
A1  - Rodemann, Niklas
A1  - Schaar, Anne Kathrin
A1  - Steuer-Dankert, Linda
A1  - Wlecke, Shari
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Nagel, Saskia K.
A1  - Piller, Frank Thomas
A1  - Schuh, Günther
A1  - Ziefle, Martina
A1  - Nitsch, Verena
T1  - Human digital shadow: Data-based modeling of users and usage in the internet of production
T2  - 14th Conference Human System Interaction Conference Proceedings
N2  - Digital Shadows as the aggregation, linkage and abstraction of data relating to physical objects are a central vision for the future of production. However, the majority of current research takes a technocentric approach, in which the human actors in production play a minor role. Here, the authors present an alternative anthropocentric perspective that highlights the potential and main challenges of extending the concept of Digital Shadows to humans. Following future research methodology, three prospections that illustrate use cases for Human Digital Shadows across organizational and hierarchical levels are developed: human-robot collaboration for manual work, decision support and work organization, as well as human resource management. Potentials and challenges are identified using separate SWOT analyses for the three prospections and common themes are emphasized in a concluding discussion.
KW  - digital shadow
KW  - cyber physical production system
KW  - user & usage
KW  - internet of production
Y1  - 2021
U6  - https://doi.org/10.1109/HSI52170.2021.9538729
N1  - 14th International Conference on Human System Interaction : 8-10 July 2021. Gdańsk, Poland
SP  - 1
EP  - 8
PB  - IEEE
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Dylla, Frank
A1  - Lakemeyer, Gerhard
T1  - Specifying Multirobot Coordination in ICPGolog - From Simulation towards Real Robots / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard
Y1  - 2003
N1  - AOS-4 at IJCAI-03
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Defosse, Jerome
A1  - Kleinschmidt, Joris
A1  - Schmutz, Axel
A1  - Loop, Torsten
A1  - Staat, Manfred
A1  - Gatzweiler, Karl-Heinz
A1  - Wappler, Frank
A1  - Schieren, Mark
T1  - Dental strain on maxillary incisors during tracheal intubation with double-lumen tubes and different laryngoscopy techniques - a blinded manikin study
JF  - Journal of Cardiothoracic and Vascular Anesthesia
KW  - anaesthetic complications
KW  - dental trauma
KW  - difficult airway
KW  - double-lumen tube intubation
KW  - videolaryngoscopy
Y1  - 2022
U6  - https://doi.org/10.1053/j.jvca.2022.02.017
SN  - 1053-0770
VL  - 36
IS  - 8, Part B
SP  - 3021
EP  - 3027
PB  - Elsevier
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Iken, Heiko
A1  - Bronder, Thomas
A1  - Goretzki, Alexander
A1  - Kriesel, Jana
A1  - Ahlborn, Kristina
A1  - Gerlach, Frank
A1  - Vonau, Winfried
A1  - Zander, Willi
A1  - Schubert, Jürgen
A1  - Schöning, Michael Josef
T1  - Development of a Combined pH- and Redox-Sensitive Bi-Electrode Glass Thin-Film Sensor
JF  - physica status solidi a : applications and materials sciences
Y1  - 2019
U6  - https://doi.org/10.1002/pssa.201900114
SN  - 1862-6319
VL  - 216
IS  - 12
SP  - 1
EP  - 8
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Pütz, Sebastian
A1  - Baier, Ralph
A1  - Brauner, Philipp
A1  - Brillowski, Florian
A1  - Dammers, Hannah
A1  - Liehner, Luca
A1  - Mertens, Alexander
A1  - Rodemann, Niklas
A1  - Schneider, Sebastian
A1  - Schollemann, Alexander
A1  - Steuer-Dankert, Linda
A1  - Vervier, Luisa
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Nagel, Saskia K.
A1  - Piller, Frank T.
A1  - Schuh, Günther
A1  - Ziefle, Martina
A1  - Nitsch, Verena
T1  - An interdisciplinary view on humane interfaces for digital shadows in the internet of production
T2  - 2022 15th International Conference on Human System Interaction (HSI)
N2  - Digital shadows play a central role for the next generation industrial internet, also known as Internet of Production (IoP). However, prior research has not considered systematically how human actors interact with digital shadows, shaping their potential for success. To address this research gap, we assembled an interdisciplinary team of authors from diverse areas of human-centered research to propose and discuss design and research recommendations for the implementation of industrial user interfaces for digital shadows, as they are currently conceptualized for the IoP. Based on the four use cases of decision support systems, knowledge sharing in global production networks, human-robot collaboration, and monitoring employee workload, we derive recommendations for interface design and enhancing workers’ capabilities. This analysis is extended by introducing requirements from the higher-level perspectives of governance and organization.
KW  - digital twin
KW  - digital shadow
KW  - cyber-physical production system
KW  - human-machine interface
Y1  - 2022
SN  - 978-1-6654-6823-7 (Print)
SN  - 978-1-6654-6822-0 (Online)
U6  - https://doi.org/10.1109/HSI55341.2022.9869467
SN  - 2158-2246 (Print)
SN  - 2158-2254 (Online)
N1  - 15th International Conference on Human System Interaction (HSI), 28-31 July 2022, Melbourne, Australia.
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Dylla, Frank
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - AllemaniACs 2003 team description
T2  - RoboCup 2003 : Robot Soccer World Cup VII
Y1  - 2003
SP  - 1
EP  - 3
ER  - 
TY  - CHAP
A1  - Mertens, Alexander
A1  - Brauner, Philipp
A1  - Baier, Ralph
A1  - Brillowski, Florian
A1  - Dammers, Hannah
A1  - van Dyck, Marc
A1  - Kong, Iris
A1  - Königs, Peter
A1  - Kordtomeikel, Frauke
A1  - Liehner, Gian Luca
A1  - Pütz, Sebastian
A1  - Rodermann, Niklas
A1  - Schaar, Anne Kathrin
A1  - Steuer-Dankert, Linda
A1  - Vervier, Luisa
A1  - Wlecke, Shari
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Nagel, Saskia K.
A1  - Piller, Frank T.
A1  - Schuh, Günther
A1  - Ziefle, Martina
A1  - Nitsch, Verena
ED  - Michael, Judith
ED  - Pfeiffer, Jérôme
ED  - Wortmann, Andreas
T1  - Modelling Human Factors in Cyber Physical Production Systems by the Integration of Human Digital Shadows
T2  - Modellierung 2022 Satellite Events
N2  - The future of industrial manufacturing and production will increasingly manifest in the form of cyber-physical production systems. Here, Digital Shadows will act as mediators between the physical and digital world to model and operationalize the interactions and relationships between different entities in production systems. Until now, the associated concepts have been primarily pursued and implemented from a technocentric perspective, in which human actors play a subordinate role, if they are considered at all. This paper outlines an anthropocentric approach that explicitly considers the characteristics, behavior, and traits and states of human actors in socio-technical production systems. For this purpose, we discuss the potentials and the expected challenges and threats of creating and using Human Digital Shadows in production.
KW  - human digital shadow
KW  - cyber physical production system
KW  - human factors
Y1  - 2022
U6  - https://doi.org/10.18420/modellierung2022ws-018
N1  - Modellierung 2022, 27. Juni - 01. Juli 2022, Hamburg, Deutschland
SP  - 147
EP  - 149
PB  - GI Gesellschaft für Informatik
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Slabu, Ioana
A1  - Roeth, Anjali A.
A1  - Engelmann, Ulrich M.
A1  - Wiekhorst, Frank
A1  - Buhl, Eva M.
A1  - Neumann, Ulf P.
A1  - Schmitz-Rode, Thomas
T1  - Modeling of magnetoliposome uptake in human pancreatic tumor cells in vitro
JF  - Nanotechnology
Y1  - 2019
U6  - https://doi.org/10.1088/1361-6528/ab033e
SN  - 1361-6528
VL  - 30
IS  - 18
SP  - 184004
ER  - 
TY  - JOUR
A1  - Engelmann, Ulrich M.
A1  - Buhl, Eva Miriam
A1  - Draack, Sebastian
A1  - Viereck, Thilo
A1  - Frank, 
A1  - Schmitz-Rode, Thomas
A1  - Slabu, Ioana
T1  - Magnetic relaxation of agglomerated and immobilized iron oxide nanoparticles for hyperthermia and imaging applications
JF  - IEEE Magnetic Letters
N2  - Magnetic nanoparticles (MNPs) are used as therapeutic and diagnostic agents for local delivery of heat and image contrast enhancement in diseased tissue. Besides magnetization, the most important parameter that determines their performance for these applications is their magnetic relaxation, which can be affected when MNPs immobilize and agglomerate inside tissues. In this letter, we investigate different MNP agglomeration states for their magnetic relaxation properties under excitation in alternating fields and relate this to their heating efficiency and imaging properties. With focus on magnetic fluid hyperthermia, two different trends in MNP heating efficiency are measured: an increase by up to 23% for agglomerated MNP in suspension and a decrease by up to 28% for mixed states of agglomerated and immobilized MNP, which indicates that immobilization is the dominant effect. The same comparatively moderate effects are obtained for the signal amplitude in magnetic particle spectroscopy.
Y1  - 2018
U6  - https://doi.org/10.1109/LMAG.2018.2879034
SN  - 1949-307X
VL  - 9
IS  - Article number 8519617
PB  - IEEE
CY  - New York, NY
ER  -