TY  - CHAP
A1  - Bragard, Michael
A1  - Hoek, Hauke van
A1  - Hoegen, Anne von
A1  - Doncker, Rik W. De
T1  - Motivation-based Learning: Teaching Fundamentals of Electrical Engineering with an LED Spinning Top
T2  - 2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)
Y1  - 2018
SN  - 978-1-5386-6903-7
U6  - http://dx.doi.org/10.1109/RTUCON.2018.8659810
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Rütters, René
A1  - Weinheimer, Marius
A1  - Bragard, Michael
T1  - Teaching Control Theory with a Simplified Helicopter Model and a Classroom Fitting Hardware Test-Bench
T2  - 2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)
Y1  - 2018
SN  - 978-1-5386-6903-7
U6  - http://dx.doi.org/10.1109/RTUCON.2018.8659871
ER  - 
TY  - CHAP
A1  - Mataré, Victor
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
ED  - Steinbauer, Gerald
ED  - Ferrein, Alexander
T1  - golog++ : An integrative system design
T2  - CogRob 2018. Cognitive Robotics Workshop : Proceedings of the 11th Cognitive Robotics Workshop 2018 co-located with 16th International Conference on Principles of Knowledge Representation and Reasoning (KR 2018) Tempe, AZ, USA, October 27th, 2018
Y1  - 2019
SN  - 1613-0073
SP  - 29
EP  - 35
ER  - 
TY  - CHAP
A1  - Serror, Martin
A1  - Henze, Martin
A1  - Hack, Sacha
A1  - Schuba, Marko
A1  - Wehrle, Klaus
T1  - Towards in-network security for smart homes
T2  - 13th International Conference on Availability, Reliability and Security, ARES 2018; Hamburg; Germany; 27 August 2018 through 30 August 2018
Y1  - 2018
SN  - 978-145036448-5
U6  - http://dx.doi.org/10.1145/3230833.3232802
SP  - Article numer 3232802
ER  - 
TY  - CHAP
A1  - Alhwarin, Faraj
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
T1  - An Efficient Hashing Algorithm for NN Problem in HD Spaces
T2  - Lecture Notes in Computer Science
Y1  - 2019
SN  - 978-303005498-4
U6  - http://dx.doi.org/10.1007/978-3-030-05499-1_6
N1  - 7th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2018; Funchal; Portugal; 16 January 2018 through 18 January 2018; Code 222779
SP  - 101
EP  - 115
ER  - 
TY  - CHAP
A1  - Scholl, Ingrid
A1  - Bartella, Alex
A1  - Moluluo, Cem
A1  - Ertural, Berat
A1  - Laing, Frederic
A1  - Suder, Sebastian
T1  - MedicVR : Acceleration and Enhancement Techniques for Direct Volume Rendering in Virtual Reality
T2  - Bildverarbeitung für die Medizin 2019 : Algorithmen – Systeme – Anwendungen
Y1  - 2019
SN  - 978-3-658-25326-4
U6  - http://dx.doi.org/10.1007/978-3-658-25326-4_32
SP  - 152
EP  - 157
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Gao, H.
A1  - Babilon, Katharina
A1  - Pfaff, Raphael
A1  - Gan, F.
A1  - Reich, A.
T1  - Model of wheel-rail contact for sanding and adhesion enhancement
T2  - Proceedings of the 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems, CM 2018
Y1  - 2018
SN  - 978-946186963-0
SP  - 314
EP  - 321
ER  - 
TY  - CHAP
A1  - Pfaff, Raphael
A1  - Melcher, Karin
A1  - Franzen, Julian
T1  - Rare event simulation to optimise maintenance intervals of safety critical redundant subsystems
T2  - Proceedings of the European Conference of the PHM Society
Y1  - 2018
VL  - 4
IS  - 1
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Thurn, Laura
A1  - Gebhardt, Andreas
T1  - Strategy of Education on Materials for Students
T2  - Conference Proceedings: „New Perspectives in Science Education"
Y1  - 2018
SN  - 978-88-6292-976-9
SP  - 156
EP  - 161
CY  - Florence, Italy
ER  - 
TY  - CHAP
A1  - Bücking, Henrik
A1  - Pfaff, Raphael
A1  - Dirksmeier, Roger
T1  - Sensor positioning and thermal model for condition monitoring of pressure gas reservoirs in vehicles
T2  - Proceedings of the Fourth European Conference of the Prognostics and Health Management Society, Utrecht, Netherlands, 2018
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Drumm, Christian
A1  - Schmitt, Matthias
A1  - Do, Hong-Hai
A1  - Rahm, Erhard
T1  - Quickmig: automatic schema matching for data migration projects
T2  - Proceedings of the 2007 ACM Conference on Information and Knowledge Management / CIKM'07, Lisboa, Portugal, Nov. 6 - 10, 2007
Y1  - 2007
SN  - 978-1-59593-803-9
U6  - http://dx.doi.org/10.1145/1321440.1321458
SP  - 107
EP  - 116
ER  - 
TY  - CHAP
A1  - Weber, Ingo
A1  - Markovic, Ivan
A1  - Drumm, Christian
T1  - A conceptual framework for composition in business process management
T2  - Business Information Systems : 10th International Conference, BIS 2007, Poznan, Poland, April 25-27, 2007. Proceedings
Y1  - 2007
SN  - 978-3-540-72035-5
U6  - http://dx.doi.org/10.1007/978-3-540-72035-5_5
SP  - 54
EP  - 66
PB  - Springer
CY  - Berlin, Heidelberg
ER  - 
TY  - CHAP
A1  - Drumm, Christian
A1  - Lemcke, Jens
A1  - Oberle, Daniel
T1  - Integrating Semantic Web Services and Business Process Management: A Real Use Case
T2  - Proceedings of the ESWC 2006 Workshop Semantics for Business Process Management 2006 (SBPM 2006), June 2006
Y1  - 2006
ER  - 
TY  - CHAP
A1  - Kunfermann, Philipp
A1  - Drumm, Christian
T1  - Lifting XML schemas to ontologies - the concept finder algorithm
T2  - MEDIATE 2005 First International Workshop on Mediation in Semantic Web Services    Proceedings of the First International Workshop on Mediation in Semantic Web Services (MEDIATE 2005)
Y1  - 2005
SP  - 113
EP  - 122
ER  - 
TY  - CHAP
A1  - Wiesen, Patrick
A1  - Engemann, Heiko
A1  - Limpert, Nicolas
A1  - Kallweit, Stephan
T1  - Learning by Doing - Mobile Robotics in the FH Aachen ROS Summer School
T2  - European Robotics Forum 2018, TRROS18 Workshop
Y1  - 2018
SP  - 47
EP  - 58
ER  - 
TY  - CHAP
A1  - Schildt, Philipp
A1  - Marzocca, Pier
A1  - Braun, Carsten
A1  - Dahmann, Peter
A1  - Keimer, Jona
T1  - Effects of atmospheric excitation on vibration based condition monitoring methods for hybrid-electric aircraft propulsion systems
T2  - AIAC 2018: 18th Australian International Aerospace Congress: HUMS - 11th Defence Science and Technology (DST) International Conference on Health and Usage Monitoring (HUMS 2019): ISSFD - 27th International Symposium on Space Flight Dynamics (ISSFD)
Y1  - 2019
SN  - 9781925627213
SP  - 923
EP  - 928
ER  - 
TY  - CHAP
A1  - Rieper, Harald
A1  - Gebhardt, Andreas
A1  - Stucker, Brent
T1  - Process parameters for Selective Laser Melting of AgCu7
T2  - DDMC, Fraunhofer Direct Digital Manufacturing Conference, 3
Y1  - 2016
SN  - 978-3-8396-1001-5
N1  - DDMC, 2016, Fraunhofer Direct Digital Manufacturing Conference, 3rd, Berlin, DE, 2016-03-16 - 2016-03-17
SP  - 171
EP  - 176
PB  - Fraunhofer-Verlag
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Birkl, Josef
A1  - Diendorfer, Gerhard
A1  - Kern, Alexander
A1  - Thern, Stephan
T1  - Extremely high lightning peak currents
T2  - 34th International Conference on Ligntning Protection, 02-07 September 2018
Y1  - 2018
SN  - 978-1-5386-6635-7
ER  - 
TY  - CHAP
A1  - Schmidts, Oliver
A1  - Kraft, Bodo
A1  - Siebigteroth, Ines
A1  - Zündorf, Albert
T1  - Schema Matching with Frequent Changes on Semi-Structured Input Files: A Machine Learning Approach on Biological Product Data
T2  - Proceedings of the 21st International Conference on Enterprise Information Systems - Volume 1: ICEIS
Y1  - 2019
SN  - 978-989-758-372-8
U6  - http://dx.doi.org/10.5220/0007723602080215
SP  - 208
EP  - 215
ER  - 
TY  - CHAP
A1  - Hunker, Jan
A1  - Jung, Alexander
A1  - Goßmann, Matthias
A1  - Linder, Peter
A1  - Staat, Manfred
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Development of a tool to analyze the conduction speed in microelectrode array measurements of cardiac tissue
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
N2  - The discovery of human induced pluripotent stem cells reprogrammed from somatic cells [1] and their ability to differentiate into cardiomyocytes (hiPSC-CMs) has provided a robust platform for drug screening [2]. Drug screenings are essential in the development of new components, particularly for evaluating the potential of drugs to induce life-threatening pro-arrhythmias. Between 1988 and 2009, 14 drugs have been removed from the market for this reason [3]. The microelectrode array (MEA) technique is a robust tool for drug screening as it detects the field potentials (FPs) for the entire cell culture. Furthermore, the propagation of the field potential can be examined on an electrode basis. To analyze MEA measurements in detail, we have developed an open-source tool.
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 7
EP  - 8
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Raman, Aravind Hariharan
A1  - Jung, Alexander
A1  - Horváth, András
A1  - Becker, Nadine
A1  - Staat, Manfred
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Modification of a computer model of human stem cell-derived cardiomyocyte electrophysiology based on Patch-Clamp measurements
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
N2  - Human induced pluripotent stem cells (hiPSCs) have shown to be promising in disease studies and drug screenings [1]. Cardiomyocytes derived from hiPSCs have been extensively investigated using patch-clamping and optical methods to compare their electromechanical behaviour relative to fully matured adult cells. Mathematical models can be used for translating findings on hiPSCCMs to adult cells [2] or to better understand the mechanisms of various ion channels when a drug is applied [3,4]. Paci et al. (2013) [3] developed the first model of hiPSC-CMs, which they later refined based on new data [3]. The model is based on iCells® (Fujifilm Cellular Dynamics, Inc. (FCDI), Madison WI, USA) but major differences among several cell lines and even within a single cell line have been found and motivate an approach for creating sample-specific models. We have developed an optimisation algorithm that parameterises the conductances (in S/F=Siemens/Farad) of the latest Paci et al. model (2018) [5] using current-voltage data obtained in individual patch-clamp experiments derived from an automated patch clamp system (Patchliner, Nanion Technologies GmbH, Munich).
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 10
EP  - 11
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Hoffmann, Katharina
A1  - Nieren, Monika
A1  - Gäb, Martina
A1  - Kasper, Anna
A1  - Elbers, Gereon
T1  - The potential of near infrared spectroscopy (NIRS) for the environmental biomonitoring of plants
T2  - International conference on Life Sciences and Technology
N2  - In the current environmental condition, the increase in pollution of the air, water, and soil indirectly will induce plants stress and decrease vegetation growth rate. These issues pay more attention to be solved by scientists worldwide. The higher level of chemical pollutants also induced the gradual changes in plants metabolism and decreased enzymatic activity. Importantly, environmental biomonitoring may play a pivotal contribution to prevent biodiversity degradation and plants stress due to pollutant exposure. Several previous studies have been done to monitor the effect of environmental changes on plants growth. Among that, Near Infrared spectroscopy (NIRS) offers an alternative way to observe the significant alteration of plant physiology caused by environmental damage related to pollution. Impairment of photosynthesis, nutrient and oxidative imbalances, and mutagenesis.
Y1  - 2019
U6  - http://dx.doi.org/10.1088/1755-1315/276/1/012009
SN  - 1755-1315
N1  - IOP Conference Series: Earth and Environmental Science : 276
VL  - 276
IS  - 012009
SP  - 1
EP  - 3
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
A1  - Neumann, Tobias
A1  - Krückel, Kai
A1  - Schiffer, Stefan
T1  - A system for continuous underground site mapping and exploration
Y1  - 2019
U6  - http://dx.doi.org/10.5772/intechopen.85859
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Bharatheesha, Mukunda
A1  - Schiffer, Stefan
A1  - Corbato, Carlos Hernandez
T1  - TRROS 2018 :  Teaching Robotics with ROS Workshop at ERF 2018;  Proceedings of the Workshop on Teaching Robotics with ROS (held at ERF 2018), co-located with European Robotics Forum 2018 (ERF 2018), Tampere, Finland, March 15th, 2018
T2  - CEUR Workshop Proceedings
Y1  - 2019
SN  - 1613-0073
IS  - Vol-2329
ER  - 
TY  - CHAP
A1  - Azar, Fouad
A1  - Digel, Ilya
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Utilization of fluorescence spectroscopy and neural networks in clinical analysis
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
N2  - Fluorescence topography of human urine in combination with learning algorithms can provide a variant pattern recognition method in analytical clinical chemistry and, eventually, diagnosis.
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 40
EP  - 41
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Zingsheim, Jonas
A1  - Grimmer, Timo
A1  - Ortner, Marion
A1  - Schmaderer, Christoph
A1  - Hauser, Christine
A1  - Kotliar, Konstantin
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Recognition of subjects with mild cognitive impairment (MCI) by the use of retinal arterial vessels.
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 36
EP  - 37
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Blum, Yannik
A1  - Albanna, Walid
A1  - Benninghaus, Anne
A1  - Kotliar, Konstantin
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Vasomotion in retinal vessels of patients presenting post hemorrhagic hydrocephalus following subarachnoid hemorrhage
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
N2  - Clearance of blood components and fluid drainage play a crucial role in subarachnoid hemorrhage (SAH) and post hemorrhagic hydrocephalus (PHH). With the involvement of interstitial fluid (ISF) and cerebrospinal fluid (CSF), two pathways for the clearance of fluid and solutes in the brain are proposed. Starting at the level of capillaries, flow of ISF follows along the basement membranes in the walls of cerebral arteries out of the parenchyma to drain into the lymphatics and CSF [1]–[3]. Conversely, it is shown that CSF enters the parenchyma between glial and pial basement membranes of penetrating arteries [4]–[6]. Nevertheless, the involved structures and the contribution of either flow pathway to fluid balance between the subarachnoid space and interstitial space remains controversial. Low frequency oscillations in vascular tone are referred to as vasomotion and corresponding vasomotion waves are modeled as the driving force for flow of ISF out of the parenchyma [7]. Retinal vessel analysis (RVA) allows non-invasive measurement of retinal vessel vasomotion with respect to diameter changes [8]. Thus, the aim of the study is to investigate vasomotion in RVA signals of SAH and PHH patients.
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 38
EP  - 39
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Gorzalka, Philip
A1  - Dahlke, Dennis
A1  - Göttsche, Joachim
A1  - Israel, Martin
A1  - Patel, Dhruvkumar
A1  - Prahl, Christoph
A1  - Schmiedt, Jacob Estevam
A1  - Frommholz, Dirk
A1  - Hoffschmidt, Bernhard
A1  - Linkiewicz, Magdalena
T1  - Building Tomograph–From Remote Sensing Data of Existing Buildings to Building Energy Simulation Input
T2  - EBC, Annex 71, Fifth expert meeting, October 17-19, 2018, Innsbruck, Austria
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Siebigteroth, Ines
A1  - Kraft, Bodo
A1  - Schmidts, Oliver
A1  - Zündorf, Albert
T1  - A Study on Improving Corpus Creation by Pair Annotation
T2  - Proceedings of the Poster Session of the 2nd Conference on Language, Data and Knowledge (LDK-PS 2019)
Y1  - 2019
SN  - 1613-0073
SP  - 40
EP  - 44
ER  - 
TY  - CHAP
A1  - Götten, Falk
A1  - Havermann, Marc
A1  - Braun, Carsten
A1  - Gomez, Francisco
A1  - Bil, Cees
T1  - On the Applicability of Empirical Drag Estimation Methods for Unmanned Air Vehicle Design   Read More: https://arc.aiaa.org/doi/10.2514/6.2018-3192
T2  - 2018 Aviation Technology, Integration, and Operations Conference, AIAA AVIATION Forum
Y1  - 2018
U6  - http://dx.doi.org/10.2514/6.2018-3192
SN  - 1533-385X
N1  - AIAA 2018-3192
SP  - Article 3192
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Borchers, Kai
A1  - Dumont, Etienne
A1  - Grimm, Christian D.
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Lange, Caroline
A1  - Maiwald, Volker
A1  - Mikulz, Eugen
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Sasaki, Kaname
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Toth, Norbert
A1  - Wejmo, Elisabet
A1  - Biele, Jens
A1  - Krause, Christian
A1  - Cerotti, Matteo
A1  - Peloni, Alessandro
A1  - Dachwald, Bernd
T1  - Small Spacecraft Solar Sailing for Small Solar System Body Multiple Rendezvous and Landing
T2  - 2018 IEEE Aerospace Conference : 3-10 March 2018
Y1  - 2018
SN  - 978-1-5386-2014-4
ER  - 
TY  - CHAP
A1  - Waldmann, Christoph
A1  - Vera, Jean-Pierre de
A1  - Dachwald, Bernd
A1  - Strasdeit, Henry
A1  - Sohl, Frank
A1  - Hanff, Hendrik
A1  - Kowalski, Julia
A1  - Heinen, Dirk
A1  - Macht, Sabine
A1  - Bestmann, Ulf
A1  - Meckel, Sebastian
A1  - Hildebrandt, Marc
A1  - Funke, Oliver
A1  - Gehrt, Jan-Jöran
T1  - Search for life in ice-covered oceans and lakes beyond Earth
T2  - 2018 IEEE/OES Autonomous Underwater Vehicle Workshop, Proceedings November 2018, Article number 8729761
N2  - The quest for life on other planets is closely connected with the search for water in liquid state. Recent discoveries of deep oceans on icy moons like Europa and Enceladus have spurred an intensive discussion about how these waters can be accessed. The challenge of this endeavor lies in the unforeseeable requirements on instrumental characteristics both with respect to the scientific and technical methods. The TRIPLE/nanoAUV initiative is aiming at developing a mission concept for exploring exo-oceans and demonstrating the achievements in an earth-analogue context, exploring the ocean under the ice shield of Antarctica and lakes like Dome-C on the Antarctic continent.
KW  - Planetary exploration
KW  - Jupiter
KW  - ice moons
KW  - underwater vehicle
KW  - Antarctica
Y1  - 2018
U6  - http://dx.doi.org/10.1109/AUV.2018.8729761
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
T1  - Understanding the acceptance of smart home-based insurances
T2  - Proceedings of the 27th European Conference on Information Systems (ECIS), Stockholm & Uppsala, Sweden, June 8-14, 2019
Y1  - 2019
SN  - 978-1-7336325-0-8
SP  - 1
EP  - 15
ER  - 
TY  - CHAP
A1  - Galdi, Chiara
A1  - Hartung, Frank
A1  - Dugelay, Jean-Luc
T1  - Socrates: A database of realistic data for source camera recognition on smartphones
T2  - Proceedings of the 8th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM
Y1  - 2019
SN  - 978-989-758-351-3
U6  - http://dx.doi.org/10.5220/0007403706480655
SP  - 648
EP  - 655
ER  - 
TY  - CHAP
A1  - Krome, Cornelia
A1  - Sander, Volker
T1  - Time series analysis with apache spark and its applications to energy informatics
T2  - Proceedings of the 7th DACH+ Conference on Energy Informatics
N2  - In energy economy forecasts of different time series are rudimentary. In this study, a prediction for the German day-ahead spot market is created with Apache Spark and R. It is just an example for many different applications in virtual power plant environments. Other examples of use as intraday price processes, load processes of machines or electric vehicles, real time energy loads of photovoltaic systems and many more time series need to be analysed and predicted.

This work gives a short introduction into the project where this study is settled. It describes the time series methods that are used in energy industry for forecasts shortly. As programming technique Apache Spark, which is a strong cluster computing technology, is utilised. Today, single time series can be predicted. The focus of this work is on developing a method to parallel forecasting, to process multiple time series simultaneously with R and Apache Spark.
Y1  - 2018
U6  - http://dx.doi.org/10.1186/s42162-018-0043-1
N1  - Energy Informatics 2018, Volume 1 Supplement 1
ER  - 
TY  - CHAP
A1  - Hüning, Felix
T1  - Complexity for heterogeneous classes: teaching embedded systems using an open project approach
T2  - Varietas delectat: Complexity is the new normality - 47th Annual Conference, Budapest, Hungary16th - 20th September 2019. SEFI 47th Annual Conference Proceedings
Y1  - 2019
SN  - 978-2-87352-018-2
SP  - 540
EP  - 549
ER  - 
TY  - CHAP
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - May, Martin
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Analysis of volumetric solar radiation absorbers made of wire meshes
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117521
SN  - 0094243X
VL  - 2126
SP  - 030009-1
EP  - 030009-6
ER  - 
TY  - CHAP
A1  - Mahdi, Zahra
A1  - Rendón, Carlos
A1  - Schwager, Christian
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Novel concept for indirect solar-heated methane reforming
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117694
SN  - 0094-243X
VL  - 2126
SP  - 180014-1
EP  - 180014-7
PB  - AIP Publishing
CY  - Melville, NY
ER  - 
TY  - CHAP
A1  - May, Martin
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - Latzke, Markus
A1  - Bäumer, Klaus
A1  - Uhlig, Ralf
A1  - Söhn, Matthias
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Experimental facility for investigations of wire mesh absorbers for pressurized gases
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117547
SN  - 0094243X
VL  - 2126
SP  - 030035-1
EP  - 030035-9
ER  - 
TY  - CHAP
A1  - Sattler, Johannes, Christoph
A1  - Alexopoulos, Spiros
A1  - Caminos, Ricardo Alexander Chico
A1  - Mitchell, John C.
A1  - Ruiz, Victor C.
A1  - Kalogirou, Soteris
A1  - Ktistis, Panayiotis K.
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117663
SN  - 0094243X
VL  - 2126
SP  - 150007-1
EP  - 150007-8
ER  - 
TY  - CHAP
A1  - Alhwarin, Faraj
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
T1  - An Optimized Method for 3D Body Scanning Applications Based on KinectFusion
T2  - Communications in Computer and Information Science
Y1  - 2019
U6  - http://dx.doi.org/10.1007/978-3-030-29196-9_6
SN  - 1865-0929
N1  - 11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018; Funchal; Portugal; 19 January 2018 through 21 January 2018
VL  - 1024
SP  - 100
EP  - 113
PB  - Springer
ER  - 
TY  - CHAP
A1  - Matcha, Heike
ED  - Herneoja, Aulikki
ED  - Österlund, Toni
ED  - Markkanen, Piia
T1  - From Designing Buildings from Systems to Designing Systems for Buildings
T2  - Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1
N2  - We study the novel possibilities computer aided design and production open up for the design of building systems. Such systems today can, via individualized mass production, consist of a larger number and more complex parts than previously and therefore be assembled into more complex wholes. This opens up the possibility of designing specialized systems specifically for single buildings. The common order of starting with a building system and designing a building using this system can be reversed to designing a building first and then developing a system specifically for that building. We present and discuss research that incorporates students design projects into research work and fosters links between research and teaching.
KW  - Building Systems
KW  - Parametric Design
KW  - Parametric Modelling
KW  - Structuralist Architecture
Y1  - 2016
U6  - http://dx.doi.org/10.52842/conf.ecaade.2016.1.237
N1  - Proceedings of the 34th eCAADe Conference, University of Oulu, Oulu, Finland, 22-26 August 2016.
SP  - 237
EP  - 240
PB  - ECAADe
CY  - Oulu, Finland
ER  - 
TY  - CHAP
A1  - Savitskaya, Irina S.
A1  - Kistaubayeva, Aida S.
A1  - Akimbekov, Nuraly S.
A1  - Digel, Ilya
A1  - Zhubanova, Azhar A.
T1  - Performance of Bio-Composite Carbonized Materials in Probiotic Applications
T2  - World Academy of Science, Engineering and Technology International Journal of Biotechnology and Bioengineering
Y1  - 2013
VL  - 7
IS  - 7
SP  - 685
EP  - 689
ER  - 
TY  - CHAP
A1  - Luft, Angela
A1  - Gebhardt, Andreas
A1  - Balc, Nicolae
T1  - Challenges of additive manufacturing in production systems
T2  - Modern technologies in manufacturing (MTeM 2019)
Y1  - 2019
U6  - http://dx.doi.org/10.1051/matecconf/201929901003
N1  - MATEC Web of Conferences 299; MTeM 2019
VL  - 299
IS  - Article 01003
ER  - 
TY  - CHAP
A1  - Abbas, Karim
A1  - Thurn, Laura
A1  - Kessler, Julia
A1  - Eichler, Fabian
T1  - Basic research of the consideration of additive manufactured lattice structures under thermoand fluid dynamic loads
T2  - Modern technologies in manufacturing (MTeM 2019)
Y1  - 2019
U6  - http://dx.doi.org/10.1051/matecconf/201929901009
N1  - MATEC Web of Conferences 299; MTeM 2019
VL  - 299
IS  - Article 01009
ER  - 
TY  - CHAP
A1  - Eichler, Fabian
A1  - Skupin, Marco
A1  - Thurn, Laura
A1  - Kasch, Susanne
A1  - Schmidt, Thomas
T1  - Operating limits for beam melting of glass materials
T2  - Modern Technologies in Manufacturing (MTeM 2019)
N2  - Laser-based Additive Manufacturing (AM) processes for the use of metals out of the powder bed have been investigated profusely and are prevalent in industry. Although there is a broad field of application, Laser Powder Bed Fusion (LPBF), also known as Selective Laser Melting (SLM) of glass is not fully developed yet. The material properties of glass are significantly different from the investigated metallic material for LPBF so far. As such, the process cannot be transferred, and the parameter limits and the process sequence must be redefined for glass. Starting with the characterization of glass powders, a parameter field is initially confined to investigate the process parameter of different glass powder using LPBFprocess. A feasibility study is carried out to process borosilicate glass powder. The effects of process parameters on the dimensional accuracy of fabricated parts out of borosilicate and hints for the post-processing are analysed and presented in this paper.
Y1  - 2019
U6  - http://dx.doi.org/10.1051/matecconf/201929901004
N1  - MATEC Web of Conferences 299; MTeM 2019
VL  - 299
IS  - Article 01004
ER  - 
TY  - CHAP
A1  - Baader, Fabian
A1  - Keller, Denis
A1  - Lehmann, Raphael
A1  - Gerber, Lukas
A1  - Reiswich, Martin
A1  - Dachwald, Bernd
A1  - Förstner, Roger
T1  - Operating melting probes for ice penetration under sublimation  conditions and in reduced gravity on a sounding rocket
T2  - Proceedings of the 24th ESA Symposium on European Rocket and Balloon Programmes and related Research
Y1  - 2019
SN  - 0379-6566
N1  - 24th PAC Symposium 2019
ER  - 
TY  - CHAP
A1  - Ludowicy, Jonas
A1  - Rings, René
A1  - Finger, Felix
A1  - Braun, Carsten
A1  - Bil, Cees
T1  - Impact of Propulsion Technology Levels on the Sizing and Energy Consumption for Serial HybridElectric General Aviation Aircraft
T2  - Asia Pacific International Symposium on Aerospace Technology. APISAT 2019
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Rings, René
A1  - Ludowicy, Jonas
A1  - Finger, Felix
A1  - Braun, Carsten
A1  - Bil, Cees
T1  - Sensitivity Analysis of General Aviation Aircraft with Parallel Hybrid-Electric Propulsion Systems
T2  - Asia Pacific International Symposium on Aerospace Technology. APISAT 2019
Y1  - 2019
ER  - 
TY  - CHAP
A1  - Matcha, Heike
A1  - Ljubas, Ante
T1  - Parametric Origami: Adaptable temporary buildings
T2  - Future cities: 28th eCAADe Conference Proceedings. eCAADe: Conferences. Zurich, Switzerland
Y1  - 2010
SN  - 978-0-9541183-7-2
SP  - 243
EP  - 251
ER  - 
TY  - CHAP
A1  - Matcha, Heike
A1  - Quasten, Gero
T1  - A Parametric-Typological Tool: More Diversity for Mass Produced Single Family Homes Through Parametrized Design and Customized Mass Production
T2  - Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings
Y1  - 2009
SN  - 978-0-9541183-8-9
SP  - 409
EP  - 416
ER  - 
TY  - CHAP
A1  - Karzer, Rüdiger
A1  - Matcha, Heike
T1  - Experimental design-build: teaching parameter-based design
T2  - Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings]
Y1  - 2009
SN  - 978-0-9541183-8-9
U6  - http://dx.doi.org/10.52842/conf.ecaade.2009.153
SP  - 153
EP  - 158
ER  - 
TY  - CHAP
A1  - Matcha, Heike
T1  - Parametric possibilities: designing with parametric modelling
T2  - Predicting the Future [25th eCAADe Conference Proceedings]
Y1  - 2007
SN  - 978-0-9541183-6-5
SP  - 849
EP  - 856
ER  - 
TY  - CHAP
A1  - Matcha, Heike
A1  - Karzel, Rüdiger
A1  - Quasten, Gero
T1  - Architectural Design with Parametric Modeling & Customized Mass Production: Explorations and Case Studies in Architectural Design and Production Methods
T2  - Language and the Scientific Imagination. The 11th International Conference of ISSEI, Language Centre, University of Helsinki (Finland) 28 July - 2 August 2008
Y1  - 2008
ER  - 
TY  - CHAP
A1  - Eltester, Niklas Sebastian
A1  - Ferrein, Alexander
A1  - Schiffer, Stefan
T1  - A smart factory setup based on the RoboCup logistics league
T2  - 2020 IEEE Conference on Industrial Cyberphysical Systems (ICPS)
N2  - In this paper we present SMART-FACTORY, a setup for a research and teaching facility in industrial robotics that is based on the RoboCup Logistics League. It is driven by the need for developing and applying solutions for digital production. Digitization receives constantly increasing attention in many areas, especially in industry. The common theme is to make things smart by using intelligent computer technology. Especially in the last decade there have been many attempts to improve existing processes in factories, for example, in production logistics, also with deploying cyber-physical systems. An initiative that explores challenges and opportunities for robots in such a setting is the RoboCup Logistics League. Since its foundation in 2012 it is an international effort for research and education in an intra-warehouse logistics scenario. During seven years of competition a lot of knowledge and experience regarding autonomous robots was gained. This knowledge and experience shall provide the basis for further research in challenges of future production. The focus of our SMART-FACTORY is to create a stimulating environment for research on logistics robotics, for teaching activities in computer science and electrical engineering programmes as well as for industrial users to study and explore the feasibility of future technologies. Building on a very successful history in the RoboCup Logistics League we aim to provide stakeholders with a dedicated facility oriented at their individual needs.
Y1  - 2020
U6  - http://dx.doi.org/10.1109/ICPS48405.2020.9274766
N1  - 2020 IEEE Conference on Industrial Cyberphysical Systems (ICPS), 10-12 June 2020, Tampere, Finland.
SP  - 297
EP  - 302
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Cordes, Sven
A1  - Gligorevic, Snjezana
A1  - Blicharski, Peter
T1  - Analysis of sine precision influence on DOA estimation using the MUSIC algorithm
T2  - 2019 20th International Radar Symposium (IRS)
Y1  - 2019
SN  - 978-3-7369-9860-5
U6  - http://dx.doi.org/10.23919/IRS.2019.8768162
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Finger, Felix
A1  - Braun, Carsten
A1  - Bil, Cees
T1  - Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft
T2  - AIAA Scitech 2019 Forum
Y1  - 2019
U6  - http://dx.doi.org/10.2514/6.2019-1812
N1  - AIAA Scitech Forum, 2019; San Diego; United States; 7 January 2019 through 11 January 2019
ER  - 
TY  - CHAP
A1  - Schwager, Christian
A1  - Teixeira Boura, Cristiano José
A1  - Flesch, Robert
A1  - Alexopoulos, Spiros
A1  - Herrmann, Ulf
T1  - Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation
T2  - AIP Conference Proceedings
Y1  - 2019
SN  - 978-0-7354-1866-0
U6  - http://dx.doi.org/10.1063/1.5117566
VL  - 2126
IS  - 1
SP  - 030054-1
EP  - 030054-8
ER  - 
TY  - CHAP
A1  - Bosse, Elke
A1  - De Clercq, Mikael
A1  - Barnat, Miriam
T1  - The Role of Diversity for the Transition to Higher Education
T2  - EARLI SIG 4, Giessen
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Steinbauer, Gerald
A1  - Ferrein, Alexander
T1  - CogRob 2018 : 
Cognitive Robotics Workshop.
Proceedings of the 11th Cognitive Robotics Workshop 2018
co-located with 16th International Conference on Principles of Knowledge Representation and Reasoning (KR 2018).
Tempe, AZ, USA, October 27th, 2018.
T2  - CEUR workshop proceedings
Y1  - 2019
SN  - 1613-0073
N1  - edited by Gerald Steinbauer, Alexander Ferrein
IS  - Vol-2325
ER  - 
TY  - CHAP
A1  - Schiffer, Fabian
A1  - Bragard, Michael
T1  - Cascaded LQ and Field-Oriented Control of a Mobile Inverse Pendulum (Segway) with Permanent Magnet Synchronous Machines
T2  - 2019 20th International Conference on Research and Education in Mechatronics (REM)
Y1  - 2019
SN  - 978-1-5386-9257-8
U6  - http://dx.doi.org/10.1109/REM.2019.8744101
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Bragard, Michael
A1  - Sube, Maike
A1  - Schneider, Maike
A1  - Jungemann, Christoph
T1  - Introducing a Cross-University Bachelor’s Programme with Orientation Semester - Enabling a Permeable Academic Education System
T2  - 2019 20th International Conference on Research and Education in Mechatronics (REM)
Y1  - 2019
SN  - 978-1-5386-9257-8
U6  - http://dx.doi.org/10.1109/REM.2019.8744132
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Bayer, Robin
A1  - Hescheler, Jürgen
A1  - Artmann, Gerhard
A1  - Temiz Artmann, Aysegül
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Treating arterial hypertension in a cell culture well
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH AachenW
N2  - Hypertension describes the pathological increase of blood pressure, which is most commonly associated with the increase of vascular wall stiffness [1]. Referring to the “Deutsche Bluthochdruck Liga” this pathology shows a growing trend in our aging society. In order to find novel pharmacological and probably personalized treatments, we want to present a functional approach to study biomechanical properties of a human aortic vascular model.
In this method review we will give an overview of recent studies which were carried out with the CellDrum technology [2] and underline the added value to already existing standard procedures known from the field of physiology.
Herein described CellDrum technology is a system to measure functional mechanical properties of cell monolayers and thin tissue constructs in-vitro. Additionally, the CellDrum enables to elucidate the mechanical response of cells to pharmacological drugs, toxins and vasoactive agents. Due to its highly flexible polymer support, cells can also be mechanically stimulated by steady and cyclic biaxial stretching.
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 5
EP  - 6
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Götten, Falk
A1  - Finger, Felix
A1  - Havermann, Marc
A1  - Braun, Carsten
A1  - Marino, Matthew
A1  - Bil, Cees
T1  - A highly automated method for simulating airfoil characteristics at low Reynolds number using a RANS - transition approach
T2  - Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany
Y1  - 2019
U6  - http://dx.doi.org/10.25967/490026
SP  - 1
EP  - 14
ER  - 
TY  - CHAP
A1  - Finger, Felix
A1  - Götten, Falk
A1  - Braun, Carsten
A1  - Bil, Cees
T1  - Mass, Primary Energy, and Cost - The Impact of Optimization Objectives on the Initial Sizing of Hybrid-Electric General Aviation Aircraft
T2  - Deutscher Luft- und Raumfahrtkongress 2019, DLRK 2019. Darmstadt, Germany
Y1  - 2019
U6  - http://dx.doi.org/10.25967/490012
SP  - 1
EP  - 17
ER  - 
TY  - CHAP
A1  - Götten, Falk
A1  - Finger, Felix
T1  - Conceptual Design of a Modular 150 kg Vertical Take-off and Landing Unmanned Aerial Vehicle
T2  - Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany
Y1  - 2019
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Blanke, Tobias
A1  - Dring, Bernd
A1  - Vontein, Marius
A1  - Kuhnhenne, Markus
T1  - Climate Change Mitigation Potentials of Vertical Building Integrated Photovoltaic
T2  - 8th International Workshop on Integration of Solar Power into Power Systems : 16-17 October 2018, Stockholm, Sweden
Y1  - 2018
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Hailer, Benjamin
A1  - Weber, Tobias
A1  - Arent, Jan-Christoph
T1  - Manufacturing Process Simulation for Autoclave-Produced Sandwich Structures
T2  - Proceedings of SAMPE Europe Conference 2019, Nantes, France
Y1  - 2019
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Weber, Tobias
A1  - Englhard, Markus
A1  - Hailer, Benjamin
A1  - Arent, Jan-Christoph
T1  - Manufacturing Process Simulation for the Prediction of Tool-Part-Interaction and Ply Wrinkling
T2  - Proceedings of SAMPE Europe Conference 2019, Nantes, France
Y1  - 2019
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Weber, Tobias
A1  - Englhard, Markus
A1  - Hailer, Benjamin
A1  - Arent, Jan-Christoph
T1  - Manufacturing Process Simulation for the Prediction of Tool-Part-Interaction and Ply Wrinkling
T2  - Proceedings of SAMPE Europe Conference, Amiens , France
Y1  - 2015
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Weber, Tobias
T1  - Manufacturing Process Simulation for Tooling Optimization: Reduction of Quality Issues During Autoclave Manufacturing of Composite Parts
T2  - Proceedings of SAMPE Europe Conference 2015, Amiens, France
Y1  - 2015
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Otten, D.
A1  - Schmid, M.
A1  - Weber, Tobias
T1  - Advances In Sheet Metal-Forming: Reduction Of Tooling Cost By Methodical Optimization
T2  - Proceedings of SAMPE Europe Conference, Amiens , France
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Schmidts, Oliver
A1  - Kraft, Bodo
A1  - Winkens, Marvin
A1  - Zündorf, Albert
T1  - Catalog integration of low-quality product data by attribute label ranking
T2  - Proceedings of the 9th International Conference on Data Science, Technology and Applications - Volume 1: DATA
Y1  - 2020
SN  - 978-989-758-440-4
U6  - http://dx.doi.org/10.5220/0009831000900101
SP  - 90
EP  - 101
ER  - 
TY  - CHAP
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg
T1  - Survey on Security Concepts to Adapt Flexible Manufacturing and Operations Management based upon Multi-Agent Systems
T2  - 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE)
Y1  - 2020
U6  - http://dx.doi.org/10.1109/ISIE45063.2020.9152210
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Stanke, Max-Alexander
T1  - Adoption of Integrated Voice Assistants in Health Care– Requirements and Design Guidelines
T2  - 15th International Conference on Wirtschaftsinformatik, March 08-11, 2020 Potsdam, Germany
Y1  - 2020
U6  - http://dx.doi.org/10.30844/wi_2020_k2-eggert
SP  - 1
EP  - 16
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Edelbauer, Thomas Rudolf
T1  - Gamified Information Systems for Assisted Living Facilities - Relevant Design Guidelines, Affordances and Adoption Barriers
T2  - 15th International Conference on Wirtschaftsinformatik, March 08-11, 2020 Potsdam, Germany
Y1  - 2020
U6  - http://dx.doi.org/10.30844/wi_2020_f3-eggert
SP  - 1
EP  - 16
ER  - 
TY  - CHAP
A1  - Jockwer, R.
A1  - Kleiber, M.
A1  - Uibel, Thomas
ED  - Görlacher, Rainer
T1  - Criteria for Evaluating the Simplification of Design Rules for Dowel-type Fasteners
T2  - International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia
Y1  - 2018
SP  - 461
EP  - 466
PB  - Timber Scientific Publishing, KIT Holzbau und Baukonstruktionen
CY  - Karlsruhe
ER  - 
TY  - CHAP
A1  - Chajan, Eduard
A1  - Schulte-Tigges, Joschua
A1  - Reke, Michael
A1  - Ferrein, Alexander
A1  - Matheis, Dominik
A1  - Walter, Thomas
T1  - GPU based model-predictive path control for self-driving vehicles
T2  - IEEE Intelligent Vehicles Symposium (IV)
N2  - One central challenge for self-driving cars is a proper path-planning. Once a trajectory has been found, the next challenge is to accurately and safely follow the precalculated path. The model-predictive controller (MPC) is a common approach for the lateral control of autonomous vehicles. The MPC uses a vehicle dynamics model to predict the future states of the vehicle for a given prediction horizon. However, in order to achieve real-time path control, the computational load is usually large, which leads to short prediction horizons. To deal with the computational load, the control algorithm can be parallelized on the graphics processing unit (GPU). In contrast to the widely used stochastic methods, in this paper we propose a deterministic approach based on grid search. Our approach focuses on systematically discovering the search area with different levels of granularity. To achieve this, we split the optimization algorithm into multiple iterations. The best sequence of each iteration is then used as an initial solution to the next iteration. The granularity increases, resulting in smooth and predictable steering angle sequences. We present a novel GPU-based algorithm and show its accuracy and realtime abilities with a number of real-world experiments.
KW  - Heuristic algorithms
KW  - Computational modeling
KW  - model-predictive control
KW  - GPU
KW  - autonomous driving
Y1  - 2021
SN  - 978-1-7281-5394-0
U6  - http://dx.doi.org/10.1109/IV48863.2021.9575619
N1  - 2021 IEEE Intelligent Vehicles Symposium (IV)
July 11-17, 2021. Nagoya, Japan
SP  - 1243
EP  - 1248
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Lorenz, Imke-Sophie
A1  - Altherr, Lena
A1  - Pelz, Peter F.
ED  - Neufeld, Janis S.
ED  - Buscher, Udo
ED  - Lasch, Rainer
ED  - Möst, Dominik
ED  - Schönberger, Jörn
T1  - Assessing and Optimizing the Resilience of Water Distribution Systems Using Graph-Theoretical Metrics
T2  - Operations Research Proceedings 2019
N2  - Water distribution systems are an essential supply infrastructure for cities. Given that climatic and demographic influences will pose further challenges for these infrastructures in the future, the resilience of water supply systems, i.e. their ability to withstand and recover from disruptions, has recently become a subject of research. To assess the resilience of a WDS, different graph-theoretical approaches exist. Next to general metrics characterizing the network topology, also hydraulic and technical restrictions have to be taken into account. In this work, the resilience of an exemplary water distribution network of a major German city is assessed, and a Mixed-Integer Program is presented which allows to assess the impact of capacity adaptations on its resilience.
KW  - OR 2019
KW  - business analytics
KW  - decision analytics
KW  - digital economy
KW  - mathematical optimization
Y1  - 2020
SN  - 978-3-030-48439-2
SN  - 978-3-030-48438-5
U6  - http://dx.doi.org/10.1007/978-3-030-48439-2_63
N1  - Annual International Conference of the German Operations Research Society (GOR), Dresden, Germany, September 4-6, 2019
SP  - 521
EP  - 527
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Leise, Philipp
A1  - Simon, Nicolai
A1  - Altherr, Lena
T1  - Comparison of Piecewise Linearization Techniques to Model Electric Motor Efficiency Maps: A Computational Study
T2  - Operations Research Proceedings 2019
N2  - To maximize the travel distances of battery electric vehicles such as cars or buses for a given amount of stored energy, their powertrains are optimized energetically. One key part within optimization models for electric powertrains is the efficiency map of the electric motor. The underlying function is usually highly nonlinear and nonconvex and leads to major challenges within a global optimization process. To enable faster solution times, one possibility is the usage of piecewise linearization techniques to approximate the nonlinear efficiency map with linear constraints. Therefore, we evaluate the influence of different piecewise linearization modeling techniques on the overall solution process and compare the solution time and accuracy for methods with and without explicitly used binary variables.
KW  - MINLP
KW  - Powertrain
KW  - Piecewise linearization
KW  - Efficiency optimization
Y1  - 2020
SN  - 978-3-030-48439-2
SN  - 978-3-030-48438-5
U6  - http://dx.doi.org/10.1007/978-3-030-48439-2_55
N1  - Annual International Conference of the German Operations Research Society (GOR), Dresden, Germany, September 4-6, 2019
SP  - 457
EP  - 463
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Müller, Tim M.
A1  - Schmitt, Andreas
A1  - Leise, Philipp
A1  - Meck, Tobias
A1  - Altherr, Lena
A1  - Pelz, Peter F.
A1  - Pfetsch, Marc E.
T1  - Validation of an optimized resilient water supply system
T2  - Uncertainty in Mechanical Engineering
N2  - Component failures within water supply systems can lead to significant performance losses. One way to address these losses is the explicit anticipation of failures within the design process. We consider a water supply system for high-rise buildings, where pump failures are the most likely failure scenarios. We explicitly consider these failures within an early design stage which leads to a more resilient system, i.e., a system which is able to operate under a predefined number of arbitrary pump failures. We use a mathematical optimization approach to compute such a resilient design. This is based on a multi-stage model for topology optimization, which can be described by a system of nonlinear inequalities and integrality constraints. Such a model has to be both computationally tractable and to represent the real-world system accurately. We therefore validate the algorithmic solutions using experiments on a scaled test rig for high-rise buildings. The test rig allows for an arbitrary connection of pumps to reproduce scaled versions of booster station designs for high-rise buildings. We experimentally verify the applicability of the presented optimization model and that the proposed resilience properties are also fulfilled in real systems.
KW  - Optimization
KW  - Mixed-integer nonlinear programming
KW  - Water distribution system
KW  - Resilience
KW  - Validation
Y1  - 2021
SN  - 978-3-030-77255-0
SN  - 978-3-030-77256-7
U6  - http://dx.doi.org/10.1007/978-3-030-77256-7_7
N1  - Proceedings of the 4th International Conference on Uncertainty in Mechanical Engineering (ICUME 2021), June 7–8, 2021
SP  - 70
EP  - 80
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Müller, Tim M.
A1  - Altherr, Lena
A1  - Ahola, Marja
A1  - Schabel, Samuel
A1  - Pelz, Peter F.
ED  - Rodrigues, H. C.
T1  - Multi-Criteria optimization of pressure screen systems in paper recycling – balancing quality, yield, energy consumption and system complexity
T2  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
N2  - The paper industry is the industry with the third highest energy consumption in the European Union. Using recycled paper instead of fresh fibers for papermaking is less energy consuming and saves resources. However, adhesive contaminants in recycled paper are particularly problematic since they reduce the quality of the resulting paper-product. To remove as many contaminants and at the same time obtain as many valuable fibres as possible, fine screening systems, consisting of multiple interconnected pressure screens, are used. Choosing the best configuration is a non-trivial task: The screens can be interconnected in several ways, and suitable screen designs as well as operational parameters have to be selected. Additionally, one has to face conflicting objectives. In this paper, we present an approach for the multi-criteria optimization of pressure screen systems based on Mixed-Integer Nonlinear Programming. We specifically focus on a clear representation of the trade-off between different objectives.
Y1  - 2019
SN  - 978-3-319-97773-7
U6  - http://dx.doi.org/10.1007/978-3-319-97773-7_105
N1  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization. 17-19 September 2018. Lisboa, Portugal
PB  - Springer International Publishing
CY  - Basel
ER  - 
TY  - CHAP
A1  - Ulmer, Jessica
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg
T1  - Adapting Augmented Reality Systems to the users’ needs using Gamification and error solving methods
T2  - Procedia CIRP
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  - http://dx.doi.org/10.1016/j.procir.2021.11.024
SN  - 2212-8271
N1  - Part of special issue: 54th CIRP CMS 2021 - Towards Digitalized Manufacturing 4.0
VL  - 104
SP  - 140
EP  - 145
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Hüning, Felix
T1  - Sustainable changes beyond covid-19 for a second semester physics course for electrical engineering students
T2  - Blended Learning in Engineering Education: challenging, enlightening – and lasting?
N2  - The course Physics for Electrical Engineering is part of the curriculum of the
bachelor program Electrical Engineering at University of Applied Science Aachen.
Before covid-19 the course was conducted in a rather traditional way with all parts
(lecture, exercise and lab) face-to-face. This teaching approach changed
fundamentally within a week when the covid-19 limitations forced all courses to
distance learning. All parts of the course were transformed to pure distance learning
including synchronous and asynchronous parts for the lecture, live online-sessions
for the exercises and self-paced labs at home. Using these methods, the course was
able to impart the required knowledge and competencies. Taking the teacher’s
observations of the student’s learning behaviour and engagement, the formal and
informal feedback of the students and the results of the exams into account, the new
methods are evaluated with respect to effectiveness, sustainability and suitability for
competence transfer. Based on this analysis strong and weak points of the concept
and countermeasures to solve the weak points were identified. The analysis further
leads to a sustainable teaching approach combining synchronous and asynchronous
parts with self-paced learning times that can be used in a very flexible manner for
different learning scenarios, pure online, hybrid (mixture of online and presence
times) and pure presence teaching.
Y1  - 2021
SN  - 978-2-87352-023-6
N1  - SEFI 49th Annual Conference
Technische Universität Berlin (online),
13 – 16 September 2021
SP  - 1405
EP  - 1409
ER  - 
TY  - CHAP
A1  - Leise, Philipp
A1  - Breuer, Tim
A1  - Altherr, Lena
A1  - Pelz, Peter F.
T1  - Development, validation and assessment of a resilient pumping system
T2  - Proceedings of the Joint International Resilience Conference, JIRC2020
N2  - The development of resilient technical systems is a challenging task, as the system should adapt automatically to unknown disturbances and component failures. To evaluate different approaches for deriving resilient technical system designs, we developed a modular test rig that is based on a pumping system. On the basis of this example
system, we present metrics to quantify resilience and an algorithmic approach to improve resilience. This approach enables the pumping system to automatically react on unknown disturbances and to reduce the impact of component failures. In this case, the system is able to automatically adapt its topology by activating additional valves. This enables the system to still reach a minimum performance, even in case of failures. Furthermore, timedependent disturbances are evaluated continuously, deviations from the original state are automatically detected and anticipated in the future. This allows to reduce the impact of future disturbances and leads to a more resilient
system behaviour.
KW  - water supply system
KW  - fault detection
KW  - anticipation strategy
Y1  - 2020
SN  - 978-90-365-5095-6
N1  - Proceedings of the Joint International Resilience Conference 2020.
Interconnected: Resilience Innovations for Sustainable Development Goals. 23 - 27 November, 2020
SP  - 97
EP  - 100
ER  - 
TY  - CHAP
A1  - Lorenz, Imke-Sophie B.
A1  - Altherr, Lena
A1  - Pelz, Peter F.
T1  - Graph-theoretic resilience analysis of a water distribution system's topology
T2  - World Congress on Resilience, Reliability and Asset Management 2019
N2  - Water suppliers are faced with the great challenge of achieving high-quality and, at the same time, low-cost water supply. In practice, the focus is set on the most beneficial maintenance measures and/or capacity adaptations of existing water distribution systems (WDS). Since climatic and demographic influences will pose further challenges in the future, the resilience enhancement of WDS, i.e. the enhancement of their capability to withstand and recover from disturbances, has been in particular focus recently. To assess the resilience of WDS, metrics based on graph theory have been proposed. In this study, a promising approach is applied to assess the resilience of the WDS for a district in a major German City. The conducted analysis provides insight into the process of actively influencing the
resilience of WDS
KW  - Resilience Assessment
KW  - Graph Theory
KW  - Water Supply System
KW  - Case Study
Y1  - 2019
N1  - World Congress on Resilience, Reliability and Asset Management, 28-31 July 2019. Furama Riverfront Hotel, Singapore
SP  - 106
EP  - 109
ER  - 
TY  - CHAP
A1  - Meck, Marvin M.
A1  - Müller, Tim M.
A1  - Altherr, Lena
A1  - Pelz, Peter F.
T1  - Improving an industrial cooling system using MINLP, considering capital and operating costs
T2  - Operations Research Proceedings 2019
N2  - The chemical industry is one of the most important industrial sectors in Germany in terms of manufacturing revenue. While thermodynamic boundary conditions often restrict the scope for reducing the energy consumption of core processes, secondary processes such as cooling offer scope for energy optimisation. In this contribution, we therefore model and optimise an existing cooling system. The technical boundary conditions of the model are provided by the operators, the German chemical company BASF SE. In order to systematically evaluate different degrees of freedom in topology and operation, we formulate and solve a Mixed-Integer Nonlinear Program (MINLP), and compare our optimisation results with the existing system.
KW  - Engineering optimisation
KW  - Mixed-integer programming
KW  - Industrial optimisation
KW  - Cooling system
KW  - Process engineering
Y1  - 2020
SN  - 978-3-030-48438-5 (Print)
SN  - 978-3-030-48439-2 (Online)
U6  - http://dx.doi.org/10.1007/978-3-030-48439-2_61
N1  - Annual International Conference of the German Operations Research Society (GOR), Dresden, Germany, September 4-6, 2019.
SP  - 505
EP  - 512
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Boden, Ralf
A1  - Ceriotti, Matteo
A1  - Chand, Suditi
A1  - Cordero, Federico
A1  - Dachwald, Bernd
A1  - Dumont, Etienne
A1  - Grimm, Christian D.
A1  - Heiligers, Jeannette
A1  - Herčík, David
A1  - Hérique, Alain
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Kofman, Wlodek
A1  - Lange, Caroline
A1  - Lichtenheldt, Roy
A1  - McInnes, Colin
A1  - Meß, Jan-Gerd
A1  - Mikschl, Tobias
A1  - Mikulz, Eugen
A1  - Montenegro, Sergio
A1  - Moore, Iain
A1  - Pelivan, Ivanka
A1  - Peloni, Alessandro
A1  - Plettemeier, Dirk
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Rogez, Yves
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seboldt, Wolfgang
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Sznajder, Maciej
A1  - Tóth, Norbert
A1  - Vergaaij, Merel
A1  - Viavattene, Giulia
A1  - Wejmo, Elisabet
A1  - Wiedemann, Carsten
A1  - Wolff, Friederike
A1  - Ziach, Christian
T1  - Flights are ten a sail – Re-use and commonality in the design and system engineering of small spacecraft solar sail missions with modular hardware for responsive and adaptive exploration
T2  - 70th International Astronautical Congress (IAC)
KW  - system engineering
KW  - small solar system body characterisation
KW  - small spacecraft solar sail
KW  - small spacecraft asteroid lander
KW  - responsive space
Y1  - 2019
SN  - 9781713814856
N1  - 70th International Astronautical Congress (IAC), Washington D.C., United States, 21-25 October 2019
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Müller, Tim M.
A1  - Altherr, Lena
A1  - Leise, Philipp
A1  - Pelz, Peter F.
T1  - Optimization of pumping systems for buildings: Experimental validation of different degrees of model detail on a modular test rig
T2  - Operations Research Proceedings 2019
N2  - Successful optimization requires an appropriate model of the system under consideration. When selecting a suitable level of detail, one has to consider solution quality as well as the computational and implementation effort. In this paper, we present a MINLP for a pumping system for the drinking water supply of high-rise buildings. We investigate the influence of the granularity of the underlying physical models on the solution quality. Therefore, we model the system with a varying level of detail regarding the friction losses, and conduct an experimental validation of our model on a modular test rig. Furthermore, we investigate the computational effort and show that it can be reduced by the integration of domain-specific knowledge.
KW  - Experimental validation
KW  - MINLP
KW  - Engineering optimization
KW  - Water supply system
KW  - Network design
Y1  - 2020
SN  - 978-3-030-48438-5
U6  - http://dx.doi.org/10.1007/978-3-030-48439-2_58
N1  - Annual International Conference of the German Operations Research Society (GOR), Dresden, Germany, September 4-6, 2019
SP  - 481
EP  - 488
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Leise, Philipp
A1  - Altherr, Lena
T1  - Optimizing the design and control of decentralized water supply systems – a case-study of a hotel building
T2  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization
N2  - To increase pressure to supply all floors of high buildings with water, booster stations, normally consisting of several parallel pumps in the basement, are used. In this work, we demonstrate the potential of a decentralized pump topology regarding energy savings in water supply systems of skyscrapers. We present an approach, based on Mixed-Integer Nonlinear Programming, that allows to choose an optimal network topology and optimal pumps from a predefined construction kit comprising different pump types. Using domain-specific scaling laws and Latin Hypercube Sampling, we generate different input sets of pump types and compare their impact on the efficiency and cost of the total system design. As a realistic application example, we consider a hotel building with 325 rooms, 12 floors and up to four pressure zones.
KW  - Engineering optimization
KW  - Energy efficiency
KW  - Water
KW  - Pump System
KW  - Latin Hypercube Sampling
Y1  - 2018
SN  - 978-3-319-97773-7
SN  - 978-3-319-97772-0
U6  - http://dx.doi.org/10.1007/978-3-319-97773-7_107
N1  - EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization. 17-19 September 2018. Lisboa, Portugal
SP  - 1241
EP  - 1252
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Leise, Philipp
A1  - Altherr, Lena
A1  - Pelz, Peter F.
T1  - Technical Operations Research (TOR) - Algorithms, not Engineers, Design Optimal Energy Efficient and Resilient Cooling Systems
T2  - FAN2018 - Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems
N2  - The overall energy efficiency of ventilation systems can be improved by considering not only single components, but by considering as well the interplay between every part of the system. With the help of the method "TOR" ("Technical Operations Research"), which was developed at the Chair of Fluid Systems at TU Darmstadt, it is possible to improve the energy efficiency of the whole system by considering all possible design choices programmatically. We show the ability of this systematic design approach with a ventilation system for buildings as a use case example.
Based on a Mixed-Integer Nonlinear Program (MINLP) we model the ventilation system. We use binary variables to model the selection of different pipe diameters. Multiple fans are model with the help of scaling laws. The whole system is represented by a graph, where the edges represent the pipes and fans and the nodes represents the source of air for cooling and the sinks, that have to be cooled. At the beginning, the human designer chooses a construction kit of different suitable fans and pipes of different diameters and different load cases. These boundary conditions define a variety of different possible system topologies. It is not possible to consider all topologies by hand. With the help of state of the art solvers, on the other side, it is possible to solve this MINLP.
Next to this, we also consider the effects of malfunctions in different components. Therefore, we show a first approach to measure the resilience of the shown example use case. Further, we compare the conventional approach with designs that are more resilient. These more resilient designs are derived by extending the before mentioned model with further constraints, that consider explicitly the resilience of the overall system. We show that it is possible to design resilient systems with this method already in the early design stage and compare the energy efficiency and resilience of these different system designs.
Y1  - 2018
N1  - International Conference on Fan Noise, Aerodynamics, Applications and Systems 
18-20.04.2018
Darmstadt, Deutschland
SP  - 1
EP  - 12
ER  - 
TY  - CHAP
A1  - Rausch, Lea
A1  - Friesen, John
A1  - Altherr, Lena
A1  - Pelz, Peter F.
ED  - Kliewer, Natalia
ED  - Ehmke, Jan Fabian
ED  - Borndörfer, Ralf
T1  - Using mixed-integer programming for the optimal design of water supply networks for slums
T2  - Operations Research Proceedings 2017
N2  - The UN sets the goal to ensure access to water and sanitation for all people by 2030. To address this goal, we present a multidisciplinary approach for designing water supply networks for slums in large cities by applying mathematical optimization. The problem is modeled as a mixed-integer linear problem (MILP) aiming to find a network describing the optimal supply infrastructure. To illustrate the approach, we apply it on a small slum cluster in Dhaka, Bangladesh.
Y1  - 2018
SN  - 978-3-319-89919-0 (Print)
SN  - 978-3-319-89920-6 (Online)
U6  - http://dx.doi.org/10.1007/978-3-319-89920-6_68
N1  - International Conference of the German Operations Research Society (GOR), Freie Universiät Berlin, Germany, September 6-8, 2017.
SP  - 509
EP  - 516
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Rausch, Lea
A1  - Leise, Philipp
A1  - Ederer, Thorsten
A1  - Altherr, Lena
A1  - Pelz, Peter F.
ED  - Papadrakakis, M.
ED  - Ppadopoulos, V.
ED  - Stefanou, G.
ED  - Plevris, V.
T1  - A comparison of MILP and MINLP solver performance on the example of a drinking water supply system design problem
T2  - ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering
N2  - Finding a good system topology with more than a handful of components is a
highly non-trivial task. The system needs to be able to fulfil all expected load cases, but at the
same time the components should interact in an energy-efficient way. An example for a system
design problem is the layout of the drinking water supply of a residential building. It may be
reasonable to choose a design of spatially distributed pumps which are connected by pipes in at
least two dimensions. This leads to a large variety of possible system topologies. To solve such
problems in a reasonable time frame, the nonlinear technical characteristics must be modelled
as simple as possible, while still achieving a sufficiently good representation of reality. The
aim of this paper is to compare the speed and reliability of a selection of leading mathematical
programming solvers on a set of varying model formulations. This gives us empirical evidence
on what combinations of model formulations and solver packages are the means of choice with the current state of the art.
KW  - Technical Operations Research
KW  - Mixed-Integer Nonlinear Optimisation
KW  - Solver Per- formance
KW  - Drinking Water Supply
KW  - System Design Problem
Y1  - 2016
SN  - 978-618-82844-0-1
N1  - ECCOMAS Congress 2016
VII European Congress on Computational Methods in Applied Sciences and Engineering, 5–10 June 2016.Crete Island, Greece
SP  - 8509
EP  - 8527
ER  - 
TY  - CHAP
A1  - Hüning, Felix
A1  - Wache, Franz-Josef
A1  - Magiera, David
T1  - Redundant bus systems using dual-mode radio
T2  - Proceedings of Sixth International Congress on Information and Communication Technology
N2  - Communication via serial bus systems, like CAN, plays an important role for all kinds of embedded electronic and mechatronic systems. To cope up with the requirements for functional safety of safety-critical applications, there is a need to enhance the safety features of the communication systems. One measure to achieve a more robust communication is to add redundant data transmission path to the applications. In general, the communication of real-time embedded systems like automotive applications is tethered, and the redundant data transmission lines are also tethered, increasing the size of the wiring harness and the weight of the system. A radio link is preferred as a redundant transmission line as it uses a complementary transmission medium compared to the wired solution and in addition reduces wiring harness size and weight. Standard wireless links like Wi-Fi or Bluetooth cannot meet the requirements for real-time capability with regard to bus communication. Using the new dual-mode radio enables a redundant transmission line meeting all requirements with regard to real-time capability, robustness and transparency for the data bus. In addition, it provides a complementary transmission medium with regard to commonly used tethered links. A CAN bus system is used to demonstrate the redundant data transfer via tethered and wireless CAN.
Y1  - 2021
SN  - 978-981-16-2379-0
SN  - 978-981-16-2380-6
U6  - http://dx.doi.org/10.1007/978-981-16-2380-6_73
N1  - Proceedings of Sixth International Congress on Information and Communication Technology, ICICT 2021, Brunel University, London, February 25–26, 2021
SP  - 835
EP  - 842
PB  - Springer
CY  - Singapore
ER  - 
TY  - CHAP
A1  - Klöser, Lars
A1  - Kohl, Philipp
A1  - Kraft, Bodo
A1  - Zündorf, Albert
T1  - Multi-attribute relation extraction (MARE): simplifying the application of relation extraction
T2  - Proceedings of the 2nd International Conference on Deep Learning Theory and Applications - DeLTA
N2  - Natural language understanding’s relation extraction makes innovative and encouraging novel business concepts possible and facilitates new digitilized decision-making processes. Current approaches allow the extraction of relations with a fixed number of entities as attributes. Extracting relations with an arbitrary amount of attributes requires complex systems and costly relation-trigger annotations to assist these systems. We introduce multi-attribute relation extraction (MARE) as an assumption-less problem formulation with two approaches, facilitating an explicit mapping from business use cases to the data annotations. Avoiding elaborated annotation constraints simplifies the application of relation extraction approaches. The evaluation compares our models to current state-of-the-art event extraction and binary relation extraction methods. Our approaches show improvement compared to these on the extraction of general multi-attribute relations.
Y1  - 2021
SN  - 978-989-758-526-5
U6  - http://dx.doi.org/10.5220/0010559201480156
N1  - Proceedings of the 2nd International Conference on Deep Learning Theory and Applications, DeLTA2021, July 7-9, 2021
SP  - 148
EP  - 156
ER  - 
TY  - CHAP
A1  - Mandekar, Swati
A1  - Jentsch, Lina
A1  - Lutz, Kai
A1  - Behbahani, Mehdi
A1  - Melnykowycz, Mark
T1  - Earable design analysis for sleep EEG measurements
T2  - UbiComp '21
N2  - Conventional EEG devices cannot be used in everyday life and
hence, past decade research has been focused on Ear-EEG for mobile,
at-home monitoring for various applications ranging from
emotion detection to sleep monitoring. As the area available for
electrode contact in the ear is limited, the electrode size and location
play a vital role for an Ear-EEG system. In this investigation, we
present a quantitative study of ear-electrodes with two electrode
sizes at different locations in a wet and dry configuration. Electrode
impedance scales inversely with size and ranges from 450 kΩ to
1.29 MΩ for dry and from 22 kΩ to 42 kΩ for wet contact at 10 Hz.
For any size, the location in the ear canal with the lowest impedance
is ELE (Left Ear Superior), presumably due to increased contact
pressure caused by the outer-ear anatomy. The results can be used
to optimize signal pickup and SNR for specific applications. We
demonstrate this by recording sleep spindles during sleep onset
with high quality (5.27 μVrms).
KW  - EEG
KW  - sensors
KW  - Impedance Spectroscopy
KW  - Sleep EEG
KW  - biopotential electrodes
Y1  - 2021
U6  - http://dx.doi.org/10.1145/3460418.3479328
N1  - UbiComp '21: Adjunct Proceedings of the 2021 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2021 ACM International Symposium on Wearable Computers, September 21–26, 2021, Virtual, USA
SP  - 171
EP  - 175
ER  - 
TY  - CHAP
A1  - Kohl, Philipp
A1  - Schmidts, Oliver
A1  - Klöser, Lars
A1  - Werth, Henri
A1  - Kraft, Bodo
A1  - Zündorf, Albert
T1  - STAMP 4 NLP – an agile framework for rapid quality-driven NLP applications development
T2  - Quality of Information and Communications Technology. QUATIC 2021
N2  - The progress in natural language processing (NLP) research over the last years, offers novel business opportunities for companies, as automated user interaction or improved data analysis. Building sophisticated NLP applications requires dealing with modern machine learning (ML) technologies, which impedes enterprises from establishing successful NLP projects. Our experience in applied NLP research projects shows that the continuous integration of research prototypes in production-like environments with quality assurance builds trust in the software and shows convenience and usefulness regarding the business goal. We introduce STAMP 4 NLP as an iterative and incremental process model for developing NLP applications. With STAMP 4 NLP, we merge software engineering principles with best practices from data science. Instantiating our process model allows efficiently creating prototypes by utilizing templates, conventions, and implementations, enabling developers and data scientists to focus on the business goals. Due to our iterative-incremental approach, businesses can deploy an enhanced version of the prototype to their software environment after every iteration, maximizing potential business value and trust early and avoiding the cost of successful yet never deployed experiments.
KW  - Machine learning
KW  - Process model
KW  - Natural language processing
Y1  - 2021
SN  - 978-3-030-85346-4
SN  - 978-3-030-85347-1
U6  - http://dx.doi.org/10.1007/978-3-030-85347-1_12
N1  - International Conference on the Quality of Information and Communications Technology, QUATIC 2021, 8-11 September, Algarve, Portugal
SP  - 156
EP  - 166
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Schmidts, Oliver
A1  - Kraft, Bodo
A1  - Winkens, Marvin
A1  - Zündorf, Albert
T1  - Catalog integration of heterogeneous and volatile product data
T2  - DATA 2020: Data Management Technologies and Applications
N2  - The integration of frequently changing, volatile product data from different manufacturers into a single catalog is a significant challenge for small and medium-sized e-commerce companies. They rely on timely integrating product data to present them aggregated in an online shop without knowing format specifications, concept understanding of manufacturers, and data quality. Furthermore, format, concepts, and data quality may change at any time. Consequently, integrating product catalogs into a single standardized catalog is often a laborious manual task. Current strategies to streamline or automate catalog integration use techniques based on machine learning, word vectorization, or semantic similarity. However, most approaches struggle with low-quality or real-world data. We propose Attribute Label Ranking (ALR) as a recommendation engine to simplify the integration process of previously unknown, proprietary tabular format into a standardized catalog for practitioners. We evaluate ALR by focusing on the impact of different neural network architectures, language features, and semantic similarity. Additionally, we consider metrics for industrial application and present the impact of ALR in production and its limitations.
Y1  - 2021
SN  - 978-3-030-83013-7
U6  - http://dx.doi.org/10.1007/978-3-030-83014-4_7
N1  - International Conference on Data Management Technologies and Applications, DATA 2020, 7-9 July
SP  - 134
EP  - 153
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Boden, Ralf Christian
A1  - Ceriotti, Matteo
A1  - Cordero, Federico
A1  - Dachwald, Bernd
A1  - Dumont, Etienne
A1  - Grimm, Christian D.
A1  - Hercik, D.
A1  - Herique, A.
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Kofman, Wlodek
A1  - Lange, Caroline
A1  - Lichtenheldt, Roy
A1  - McInnes, Colin R.
A1  - Mikschl, Tobias
A1  - Mikulz, Eugen
A1  - Montenegro, Sergio
A1  - Moore, Iain
A1  - Pelivan, Ivanka
A1  - Peloni, Alessandro
A1  - Plettemeier, Dirk
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Rogez, Yves
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seboldt, Wolfgang
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Sznajder, Maciej
A1  - Toth, Norbert
A1  - Viavattene, Giulia
A1  - Wejmo, Elisabet
A1  - Wolff, Friederike
A1  - Ziach, Christian
T1  - Responsive integrated small spacecraft solar sail and payload design concepts and missions
T2  - Conference: 5th International Symposium on Solar Sailing (ISSS 2019)
N2  - Asteroid mining has the potential to greatly reduce the cost of in-space manufacturing, production of propellant for space transportation and consumables for crewed spacecraft, compared to launching the required resources from Earth’s deep gravity well. This paper discusses the top-level mission architecture and trajectory design for these resource-return missions, comparing high-thrust trajectories with continuous low-thrust solar-sail trajectories. This work focuses on maximizing the economic Net Present Value, which takes the time-cost of finance into account and therefore balances the returned resource mass and mission duration. The different propulsion methods will then be compared in terms of maximum economic return, sets of attainable target asteroids, and mission flexibility. This paper provides one more step towards making commercial asteroid mining an economically viable reality by integrating trajectory design, propulsion technology and economic modelling.
Y1  - 2019
N1  - Conference: 5th International Symposium on Solar Sailing (ISSS 2019)At: Aachen, Germany
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Biele, Jens
A1  - Boden, Ralf
A1  - Ceriotti, Matteo
A1  - Cordero, Federico
A1  - Dachwald, Bernd
A1  - Dumont, Etienne
A1  - Grimm, Christian D.
A1  - Herčík, David
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Koch, Aaron D
A1  - Koncz, Alexander
A1  - Krause, Christian
A1  - Lange, Caroline
A1  - Lichtenheldt, Roy
A1  - Maiwald, Volker
A1  - Mikschl, Tobias
A1  - Mikulz, Eugen
A1  - Montenegro, Sergio
A1  - Pelivan, Ivanka
A1  - Peloni, Alessandro
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seboldt, Wolfgang
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Sznajder, Maciej
A1  - Tardivel, Simon
A1  - Tóth, Norbert
A1  - Wejmo, Elisabet
A1  - Wolff, Friederike
A1  - Ziach, Christian
T1  - Small spacecraft based multiple near-earth asteroid rendezvous and landing with near-term solar sails and ‘Now-Term ‘technologies
T2  - 69 th International Astronautical Congress (IAC)
N2  - Physical interaction with small solar system bodies (SSSB) is the next step in planetary science, planetary in-situ resource utilization (ISRU), and planetary defense (PD). It requires a broader understanding of the surface properties of the target objects, with particular interest focused on those near Earth. Knowledge of composition, multi-scale surface structure, thermal response, and interior structure is required to design, validate and operate missions addressing these three fields. The current level of understanding is occasionally simplified into the phrase, ”If you’ve seen one asteroid, you’ve seen one asteroid”, meaning that the in-situ characterization of SSSBs has yet to cross the threshold towards a robust and stable scheme of classification. This would enable generic features in spacecraft design, particularly for ISRU and science missions. Currently, it is necessary to characterize any potential target object sufficiently by a dedicated pre-cursor mission to design the mission which then interacts with the object in a complex fashion. To open up strategic approaches, much broader in-depth characterization of potential target objects would be highly desirable. In SSSB science missions, MASCOT-like nano-landers and instrument carriers which integrate at the instrument level to their mothership have met interest. By its size, MASCOT is compatible with small interplanetary missions. The DLR-ESTEC Gossamer Roadmap Science Working Groups‘ studies identified Multiple Near-Earth asteroid (NEA) Rendezvous (MNR) as one of the space science missions only feasible with solar sail propulsion. The Solar Polar Orbiter (SPO) study showed the ability to access any inclination, theDisplaced-L1 (DL1) mission operates close to Earth, where objects of interest to PD and for ISRU reside. Other studies outline the unique capability of solar sails to provide access to all SSSB, at least within the orbit of Jupiter, and significant progress has been made to explore the performance envelope of near-term solar sails for MNR. However, it is difficult for
sailcraft to interact physically with a SSSB. We expand and extend the philosophy of the recently qualified DLR Gossamer solar sail deployment technology using efficient multiple sub-spacecraft integration to also include landers for one-way in-situ investigations and sample-return missions by synergetic integration and operation of sail and lander. The MASCOT design concept and its characteristic features have created an ideal counterpart for thisand has already been adapted to the needs of the AIM spacecraft, former part of the NASA-ESA AIDA missionDesigning the 69th International Astronautical Congress (IAC), Bremen, Germany, 1-5 October 2018. IAC-18-F1.2.3 Page 2 of 17 combined spacecraft for piggy-back launch accommodation enables low-cost massively parallel access to the NEA population.
KW  - multiple NEA rendezvous
KW  - solar sail
KW  - GOSSAMER-1
KW  - MASCOT
KW  - small spacecraft
Y1  - 2018
N1  - 69th International Astronautical Congress (IAC), Bremen, Germany, 1-5 October 2018.
https://www.bho-legal.com/1-5-october-2018-69th-international-astronautical-congress-2018-in-bremen-germany/
SP  - 1
EP  - 18
ER  -