TY  - CHAP
A1  - Eggert, Mathias
A1  - Winkelmann, Axel
A1  - Lohmann, Patrick
A1  - Knackstedt, Ralf
T1  - The Regulatory Influence On Management Information Systems - A Contingency Perspective
T2  - ECIS 2013 Completed Research. 9
Y1  - 2013
N1  - Proceedings of the 21st European Conference on Information Systems
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Weber, Jannik
T1  - What drives the purchase decision in Instagram stores?
T2  - ECIS 2023 Research Papers
N2  - The popularity of social media and particularly Instagram grows steadily. People use the different platforms to share pictures as well as videos and to communicate with friends. The potential of social media platforms is also being used for marketing purposes and for selling products. While for Facebook and other online social media platforms the purchase decision factors are investigated several times, Instagram stores remain mainly unattended so far. The present research work closes this gap and sheds light into decisive factors for purchasing products offered in Instagram stores. A theoretical research model, which contains selected constructs that are assumed to have a significant influence on Instagram user´s purchase intention, is developed. The hypotheses are evaluated by applying structural equation modelling on survey data containing 127 relevant participants. The results of the study reveal that ‘trust’, ‘personal recommendation’, and ‘usability’ significantly influences user’s buying intention in Instagram stores.
KW  - Instagram store
KW  - shopping behavior
KW  - purchase factor
KW  - PLS
KW  - structural equation model
Y1  - 2023
N1  - ECIS 2023, European Conference on Information Systems, Kristiansand, Norway, June 11.-16.
SP  - 1
EP  - 17
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  - Kriska, Melina
T1  - Gamification for software development processes – relevant affordances and design principles
T2  - Proceedings of the 55th Hawaii International Conference on System Sciences
N2  - A Gamified Information System (GIS) implements game concepts and elements, such as affordances and game design principles to motivate people. Based on the idea to develop a GIS to increase the motivation of software developers to perform software quality tasks, the research work at hand aims at investigating relevant requirements from that target group. Therefore, 14 interviews with software development experts are conducted and analyzed. According to the results, software developers prefer the affordances points, narrative storytelling in a multiplayer and a round-based setting. Furthermore, six design principles for the development of a GIS are derived.
Y1  - 2022
SN  - 978-0-9981331-5-7
U6  - http://dx.doi.org/10.24251/HICSS.2022.200
N1  - Hawaii International Conference on System Sciences (HICSS) 2022, 04.01.2022 – 07.01.2022
SP  - 1614
EP  - 1623
PB  - HICSS Publishing
CY  - Honolulu
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  - Eggert, Mathias
A1  - Dyong, Julian
T1  - Applying process mining in small and medium sized IT enterprises – challenges and guidelines
T2  - International Conference on Business Process Management (BPM 2022)
N2  - Process mining gets more and more attention even outside large enterprises and can be a major benefit for small and medium sized enterprises (SMEs) to gain competitive advantages. Applying process mining is challenging, particularly for SMEs because they have less resources and process maturity. So far, IS researchers analyzed process mining challenges with a focus on larger companies. This paper investigates the application of process mining by means of a case study and sheds light into the particular challenges of an IT SME. The results reveal 13 SME process mining challenges and seven guidelines to address them. In this way, the paper contributes to the understanding of process mining application in SME and shows similarities and differences to larger companies.
KW  - Process mining
KW  - Challenges
KW  - Guidelines
KW  - SME
KW  - Case Study
Y1  - 2022
SN  - 978-3-031-16103-2
U6  - http://dx.doi.org/10.1007/978-3-031-16103-2_11
SP  - 125
EP  - 142
PB  - Springer
CY  - Cham
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  - Edip, Kemal
A1  - Garevski, Mihail
A1  - Butenweg, Christoph
A1  - Sheshov, Vlatko
A1  - Bojadjieva, Julijana
A1  - Gjorgjiev, Igor
T1  - New coupled finite-infinite element approach for wave propagation simulation of unbounded soil media
T2  - 2nd European Conference on Earthquake Engineering and Seismology 2014 (2nd ECEES) : joint event of the 15th European Conference on Earthquake Engineering and the 34th General Assembly of the European Seismological Commission : Istanbul, Turkey, 25-29 August 2014 / European Association for Earthquake Engineering (EAEE) ; Vol. 2
Y1  - 2014
SN  - 978-1-5108-1021-1
SP  - 1556
EP  - 1561
PB  - Curran Associates, Inc.
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Edip, Kemal
A1  - Garevski, Mihail
A1  - Butenweg, Christoph
A1  - Sesov, Vlatko
A1  - Bojadjieva, Julijana
A1  - Gjorgjiev, Igor
T1  - Boundary effects on seismic analysis of multi-storey frames considering soil structure interaction phenomenon
T2  - Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed
Y1  - 2014
SN  - 978-3-658-02809-1 (Print) ; 978-3-658-02810-7
U6  - http://dx.doi.org/10.1007/978-3-658-02810-7_47
SP  - 569
EP  - 576
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Ziller, Claudia
A1  - Hortmanns, M.
T1  - Ventilation of double facades by external dynamic wind pressure
T2  - 11th International Conference on Wind Engineering. 1
Y1  - 2003
SP  - 721
EP  - 730
PB  - The Wind Science and Engineering Research Center
CY  - Lubbock, Tex.
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Sedlacek, Gerhard
T1  - Improvement of thermal comfort in light weight buildings made of steel with new concepts for slab systems
T2  - 10th Nordic Steel Construction Conference, Copenhagen, Denmark 7-9. June 2004: NSCC 2004 : proceedings
Y1  - 2004
SP  - 35
EP  - 44
PB  - Danish Steel Inst.
CY  - Copenhagen
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Kuhnhenne, Markus
A1  - Feldmann, Markus
T1  - Floor systems - key elements for sustainable multi-storey buildings
T2  - SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011
Y1  - 2011
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Feldmann, Markus
A1  - Kuhnhenne, Markus
A1  - Hellberg, Jan
T1  - Implementing a thermal activation system into a light-weight steel deck element
T2  - Eurosteel 2008 : 5th European Conference on Steel and Composite Structures ; research, practice, new materials ; 3rd to 5th September 2008, Graz, Austria / ed. by Robert Ofner ...
Y1  - 2008
SN  - 92-0147-000-90
SP  - 941
EP  - 946
PB  - ECCS, European Convention for Construction Steelwork
CY  - Brussels
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Feldmann, Markus
A1  - Kuhnhenne, Markus
T1  - An innovative thermally activated light-weight steel deck system - numerical investigations and practical tests
T2  - Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings
Y1  - 2007
SN  - 978-952-99898-2-9
SP  - 1
EP  - 8
CY  - Helsinki
ER  - 
TY  - CHAP
A1  - Dören, Horst-Peter
T1  - The examination of surfaces of cold rolled wire for gas-shielded arc-welding
T2  - WAI/BISPA joint conference : proceedings. Joint conference of Wire Association International and the British Independent Steel Producers Association (WAI/BISPA) : 26 - 27. 09. 1988, Stratford-upon-Avon
Y1  - 1988
SP  - 102
EP  - 112
CY  - Guilford, Conn.
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  - Duran Paredes, Ludwin
A1  - Mottaghy, Darius
A1  - Herrmann, Ulf
A1  - Groß, Rolf Fritz
T1  - Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components
T2  - EGU General Assembly 2020
N2  - We present first results from a newly developed monitoring station for a closed loop geothermal heat pump test installation at our campus, consisting of helix coils and plate heat exchangers, as well as an ice-store system. There are more than 40 temperature sensors and several soil moisture content sensors distributed around the system, allowing a detailed monitoring under different operating conditions.In the view of the modern development of renewable energies along with the newly concepts known as Internet of Things and Industry 4.0 (high-tech strategy from the German government), we created a user-friendly web application, which will connect the things (sensors) with the open network (www). Besides other advantages, this allows a continuous remote monitoring of the data from the numerous sensors at an arbitrary sampling rate.Based on the recorded data, we will also present first results from numerical simulations, taking into account all relevant heat transport processes.The aim is to improve the understanding of these processes and their influence on the thermal behavior of shallow geothermal systems in the unsaturated zone. This will in turn facilitate the prediction of the performance of these systems and therefore yield an improvement in their dimensioning when designing a specific shallow geothermal installation.
Y1  - 2020
N1  - Online 4–8 May 2020 [Session ERE2.8] EGU2020-19052
ER  - 
TY  - CHAP
A1  - Duprat, J.
A1  - Dachwald, Bernd
A1  - Hilchenbach, M.
A1  - Engrand, Cecile
A1  - Espe, C.
A1  - Feldmann, M.
A1  - Francke, G.
A1  - Görög, Mark
A1  - Lüsing, N.
A1  - Langenhorst, Falko
T1  - The MARVIN project: a micrometeorite harvester in Antarctic snow
T2  - 44th Lunar and Planetary Science Conference
N2  - MARVIN is an automated drilling and melting probe dedicated to collect pristine interplanetary dust particles (micrometeorites) from central Antarctica snow.
Y1  - 2013
N1  - 44th Lunar and Planetary Science Conference, March 18-22, 2013, The Woodlands, Texas
ER  - 
TY  - CHAP
A1  - Duong, Minh Tuan
A1  - Nguyen, Nhu Huynh
A1  - Staat, Manfred
ED  - Eberhardsteiner, J.
T1  - Numerical stability enhancement of modeling hyperelastic materials
T2  - Proceedings European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)
Y1  - 2012
N1  - 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012) Vienna, Austria, September 10-14, 2012
ER  - 
TY  - CHAP
A1  - Duong, Minh Tuan
A1  - Nguyen, Nhu Hunyh
A1  - Staat, Manfred
T1  - Finite Element Implementation of a 3D Fung-type Model
T2  - ESMC-2012 - 8th European Solid Mechanics Conference, Graz, Austria, July 9-13, 2012
Y1  - 2012
SN  - 978-3-85125-223-1
PB  - Verlag d. Technischen Universität Graz
CY  - Graz
ER  - 
TY  - CHAP
A1  - Duong, Minh Tuan
A1  - Nguyen, N. H.
A1  - Staat, Manfred
T1  - Modeling and simulation of a growing mass by the Smoothed Finite Element Method (SFEM)
T2  - Conference proceedings of the YIC GACM 2015 : 3rd ECCOMAS Young Investigators Conference and 6th GACM Colloquium on Computational Mechanics , Aachen, Germany, 20.07.2015 - 23.07.2015  / ed.: Stefanie Elgeti ; Jaan-Willem Simon
Y1  - 2015
SP  - 1
EP  - 4
PB  - RWTH Aachen University
CY  - Aachen
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  - 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  - Droszez, Anna
A1  - Sanno, Maximilian
A1  - Goldmann, Jan-Peter
A1  - Albracht, Kirsten
A1  - Brüggemann, Gerd-Peter
A1  - Braunstein, Bjoern
T1  - Differences between take-off behavior during vertical jumps and two artistic elements
T2  - 34th International Conference of Biomechanics in Sport, Tsukuba, Japan, July 18-22, 2016
Y1  - 2016
SN  - 1999-4168
SP  - 577
EP  - 580
ER  - 
TY  - CHAP
A1  - Dowidat, Linda
A1  - König, Johannes Alexander
A1  - Wolf, Martin
T1  - The motivational competence developing game framework
T2  - Mensch und Computer 2017 - Tagungsband
N2  - Competence Developing Games (CDGs) are a new concept of how to think about games with serious intentions. In order to emphasize on this topic, a new framework has been developed. It basically relies on learning and motivation theories. This ‘motivational Competence Developing Game Framework’ demonstrates how it is possible to use these theories in a CDG development process. The theoretical derivation and use of the framework is explained in this paper.
KW  - Competence Developing Games
KW  - Serious Games
KW  - Gamification
KW  - motivation theories
KW  - learning theories
Y1  - 2017
U6  - http://dx.doi.org/10.18420/muc2017-mci-0130
SP  - 15
EP  - 26
PB  - Gesellschaft für Informatik e.V.
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Dinghofer, Kai
A1  - Hartung, Frank
T1  - Analysis of Criteria for the Selection of Machine Learning Frameworks
T2  - 2020 International Conference on Computing, Networking and Communications (ICNC)
Y1  - 2020
U6  - http://dx.doi.org/10.1109/ICNC47757.2020.9049650
SP  - 373
EP  - 377
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Möller, M.
A1  - Weichhold, O.
ED  - Hegger, Josef
T1  - Application of polymers in textile reinforced concrete : from the interface to construction elements
T2  - Textile reinforced concrete : proceedings of the 1. International RILEM Conference, held at the RWTH Aachen, September 6/7, 2006. (RILEM proceedings ; 50)
Y1  - 2006
SN  - 2-912143-97-7
SP  - 55
EP  - 64
PB  - RILEM Publ.
CY  - Bagneux
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Hegger, Josef
A1  - Voss, Stefan
ED  - Reinhardt, Hans W.
T1  - Load-bearing behaviour of polymer-impregnated textiles in concrete
T2  - Fifth International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC 5) : Mainz, July 10 - 13, 2007. (RILEM proceedings. 53)
Y1  - 2007
SN  - 978-2-35158-046-2
SP  - 183
EP  - 192
PB  - RILEM Publ.
CY  - Bagneux
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Chudoba, Rostislav
A1  - Konrad, Martin
ED  - Triantafillou, T. C.
T1  - Experimental investigation and micro-mechanical simulaltion of concrete reinforced with epoxy impregnated fabrics
T2  - Fibre-reinforced polymer reinforcement for concrete structures : proceedings of the 8th international conference : Patras, Greece, July 16- 18, 2007
Y1  - 2007
SN  - 9608969107
SP  - 456
EP  - 457
PB  - Univ.
CY  - Patras
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
ED  - Barroso de Aguiar, Jose
ED  - Jalali, Said
ED  - Camoes, Aires
ED  - Ferrera, Rui Miguel
T1  - Composite improvement of textile reinforced concrete by polymeric impregnation of the textiles
T2  - International Symposium Polymers in Concrete : proceedings of ISPIC 2006, 2-4 April 2006 - University of Minho - Guimarães, Portugal
Y1  - 2006
SN  - 972-99179-1-4
SP  - 185
EP  - 192
PB  - Universidade do Minho, Departamento de Engenharia Civil
CY  - Guimarães
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Mund, F.
A1  - Raupach, Michael
A1  - Schleser, Markus
A1  - Walk-Lauffer, Bernd
T1  - Improvement of textile reinforced concrete by polymer additives
T2  - ICPIC '04 : 11th International Congress on Polymers in Concrete : 2nd-4th June, 2004 at BAM, Berlin, Germany : proceedings / ed. by M. Maultzsch
Y1  - 2004
SN  - 3-00-013706-8
SP  - 469
EP  - 476
PB  - BAM
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Dey, Thomas
A1  - Elsen, Ingo
A1  - Ferrein, Alexander
A1  - Frauenrath, Tobias
A1  - Reke, Michael
A1  - Schiffer, Stefan
ED  - Makedon, Fillia
T1  - CO2 Meter: a do-it-yourself carbon dioxide measuring device for the classroom
T2  - PETRA 2021: The 14th PErvasive Technologies Related to Assistive Environments Conference
N2  - In this paper we report on CO2 Meter, a do-it-yourself carbon dioxide measuring device for the classroom. Part of the current measures for dealing with the SARS-CoV-2 pandemic is proper ventilation in indoor settings. This is especially important in schools with students coming back to the classroom even with high incidents rates. Static ventilation patterns do not consider the individual situation for a particular class. Influencing factors like the type of activity, the physical structure or the room occupancy are not incorporated. Also, existing devices are rather expensive and often provide only limited information and only locally without any networking. This leaves the potential of analysing the situation across different settings untapped. Carbon dioxide level can be used as an indicator of air quality, in general, and of aerosol load in particular. Since, according to the latest findings, SARS-CoV-2 can be transmitted primarily in the form of aerosols, carbon dioxide may be used as a proxy for the risk of a virus infection. Hence, schools could improve the indoor air quality and potentially reduce the infection risk if they actually had measuring devices available in the classroom. Our device supports schools in ventilation and it allows for collecting data over the Internet to enable a detailed data analysis and model generation. First deployments in schools at different levels were received very positively. A pilot installation with a larger data collection and analysis is underway.
KW  - embedded hardware
KW  - sensor networks
KW  - information systems
KW  - education
KW  - do-it-yourself
Y1  - 2021
SN  - 9781450387927
U6  - http://dx.doi.org/10.1145/3453892.3462697
N1  - PETRA '21: The 14th PErvasive Technologies Related to Assistive Environments Conference Corfu Greece 29 June 2021- 2 July 2021
SP  - 292
EP  - 299
PB  - Association for Computing Machinery
CY  - New York
ER  - 
TY  - CHAP
A1  - Detert, T.
A1  - Gligorevic, Snjezana
A1  - Haak, W.
A1  - Sorger, Ulrich
T1  - Maximum-likelihood channel estimation using the spreading matrix in fast time-variant frequency selective channels
T2  - Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003 : 14 - 17 December 2003, Darmstadt, Germany
Y1  - 2003
SN  - 0-7803-8292-7
SP  - 347
EP  - 350
ER  - 
TY  - CHAP
A1  - Dersch, Jürgen
A1  - Geyer, Michael
A1  - Herrmann, Ulf
A1  - Jones, Scott A.
A1  - Kelly, Bruce
A1  - Kistner, Rainer
A1  - Ortmanns, Winfried
A1  - Pitz-Paal, Robert
A1  - Price, Henry
ED  - Steinfeld, Aldo
T1  - Trough integration into power plants : a study on the performance and economy of integrated solar combined cycle systems
T2  - Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich
Y1  - 2002
SN  - 3-9521409-3-7
SP  - 661
EP  - 671
PB  - Paul Scherrer Inst.
CY  - Villingen
ER  - 
TY  - CHAP
A1  - Dersch, Jürgen
A1  - Geyer, Michael
A1  - Herrmann, Ulf
A1  - Jones, Scott A.
A1  - Kelly, Bruce
A1  - Kistner, Rainer
A1  - Ortmanns, Winfried
A1  - Pitz-Paal, Robert
A1  - Price, Henry
ED  - Pearson, J. Boise
T1  - Solar Trough Integration Into Combined Cycle Systems
T2  - Solar engineering 2002 : proceedings of the International Solar Energy Conference ; presented at the 2002 International Solar Energy Conference, a part of Solar 2002 - Sunrise on the Reliable Energy Economy, June 15 - 20, 2002, Reno, Nevada
Y1  - 2002
SN  - 0-7918-1689-3
U6  - http://dx.doi.org/doi:10.1115/SED2002-1072
SP  - 351
EP  - 359
PB  - ASME
ER  - 
TY  - CHAP
A1  - de Honde, Lukas
A1  - Porst, Dariusz
A1  - Digel, Ilya
ED  - Fischerauer, Alice
T1  - A randomized, observational thermographic study of the neck region before and after a physiotherapeutic intervention
T2  - 2nd YRA MedTech Symposium 2017 : June 8th - 9th / 2017 / Hochschule Ruhr-West
Y1  - 2017
SN  - 978-3-9814801-9-1
U6  - http://dx.doi.org/10.17185/duepublico/43984
N1  - A young researchers track of the 7th IEEE Workshop & SENSORICA 2017
SP  - 122
EP  - 123
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Dannen, Tammo
A1  - Schindele, Benedikt
A1  - Prümmer, Marcel
A1  - Arntz, Kristian
A1  - Bergs, Thomas
T1  - Methodology for the self-optimizing determination of additive manufacturing process eligibility and optimization potentials in toolmaking
T2  - Procedia CIRP
N2  - Additive Manufacturing (AM) of metallic workpieces faces a continuously rising technological relevance and market size. Producing complex or highly strained unique workpieces is a significant field of application, making AM highly relevant for tool components. Its successful economic application requires systematic workpiece based decisions and optimizations. Considering geometric and technological requirements as well as the necessary post-processing makes deciding effortful and requires in-depth knowledge. As design is usually adjusted to established manufacturing, associated technological and strategic potentials are often neglected. To embed AM in a future proof industrial environment, software-based self-learning tools are necessary. Integrated into production planning, they enable companies to unlock the potentials of AM efficiently. This paper presents an appropriate methodology for the analysis of process-specific AM-eligibility and optimization potential, added up by concrete optimization proposals. For an integrated workpiece characterization, proven methods are enlarged by tooling-specific figures.

The first stage of the approach specifies the model’s initialization. A learning set of tooling components is described using the developed key figure system. Based on this, a set of applicable rules for workpiece-specific result determination is generated through clustering and expert evaluation. Within the following application stage, strategic orientation is quantified and workpieces of interest are described using the developed key figures. Subsequently, the retrieved information is used for automatically generating specific recommendations relying on the generated ruleset of stage one. Finally, actual experiences regarding the recommendations are gathered within stage three. Statistic learning transfers those to the generated ruleset leading to a continuously deepening knowledge base. This process enables a steady improvement in output quality.
KW  - Additive manufacturing
KW  - Laser-Powder Bed Fusion
KW  - L-PBF
KW  - Binder Jetting
KW  - Directed Energy Deposition
Y1  - 2022
U6  - http://dx.doi.org/10.1016/j.procir.2022.05.188
SN  - 2212-8271
N1  - 55th CIRP Conference on Manufacturing Systems
VL  - 107
SP  - 1539
EP  - 1544
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Damm, Sebastian
A1  - Ritz, Thomas
A1  - Strauch, Jakob
T1  - Adaption of archetype patterns for mobile cloud-based business apps
T2  - 2011 IEEE International Conference on Pervasive Computing and Communications workshops (PerCom workshops 2011) : Seattle, Washington, USA, 21 - 25 March 2011
Y1  - 2011
SN  - 978-1-61284-938-6 (Print)
SN  - 978-1-61284-936-2 (E-Book)
U6  - http://dx.doi.org/10.1109/PERCOMW.2011.5766849
SP  - 100
EP  - 105
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Damm, Sebastian
A1  - Rahier, Michael
A1  - Ritz, Thomas
A1  - Schäfer, Thomas
ED  - Davoli, Renzo
T1  - Architecture for platform- and hardware-independent mesh networks : how to unify the channels
T2  - ICSNC 2013 : The Eighth International Conference on Systems and Networks Communications ; October 27, 2013 to October 31, 2013, Venice Italy
N2  - This paper will prove that mesh networks among different platforms and hardware channels can help to channel valuable information even if public telecommunication infrastructure is not available due to arbitrary reasons. Therefore, results of a simulation for mesh networks on mass events will be provided, followed by the developed architecture and an outlook on future research. The developed architecture is currently being implemented and field tested on mass events.
Y1  - 2013
SN  - 978-1-61208-305-6
N1  - IARIA Conference
SP  - 131
EP  - 134
PB  - Curran Associates
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Dalguer, Luis A.
A1  - Churilov, Sergey
A1  - Butenweg, Christoph
A1  - Renault, Philippe
A1  - Hyun, An Jun
T1  - Dynamic analysis of a reinforced concrete electrical nuclear building of SMART 2013 project subjected to earthquake excitation using ABAQUS
T2  - Workshop SMART2013 : Paris, France, November 25th - 27th, 2014
Y1  - 2014
SP  - 1
EP  - 12
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Xu, Changsheng
A1  - Feldmann, Marco
A1  - Plescher, Engelbert
T1  - IceMole : Development of a novel subsurface ice probe and testing of the first prototype on the Morteratsch Glacier
T2  - EGU General Assembly 2011 Vienna | Austria | 03 – 08 April 2011
N2  - We present the novel concept of a combined drilling and melting probe for subsurface ice research. This probe, named “IceMole”, is currently developed, built, and tested at the FH Aachen University of Applied Sciences’ Astronautical Laboratory. Here, we describe its first prototype design and report the results of its field tests on the Swiss Morteratsch glacier. Although the IceMole design is currently adapted to terrestrial glaciers and ice shields, it may later be modified for the subsurface in-situ investigation of extraterrestrial ice, e.g., on Mars, Europa, and Enceladus. If life exists on those bodies, it may be present in the ice (as life can also be found in the deep ice of Earth).
Y1  - 2011
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Wurm, P.
T1  - Design concept and modeling of an advanced solar photon thruster
T2  - Advances in the Astronautical Sciences
N2  - The so-called "compound solar sail", also known as "Solar Photon Thruster" (SPT), holds the potential of providing significant performance advantages over the flat solar sail. Previous SPT design concepts, however, do not consider shadowing effects and multiple reflections of highly concentrated solar radiation that would inevitably destroy the gossamer sail film. In this paper, we propose a novel advanced SPT (ASPT) design concept that does not suffer from these oversimplifications. We present the equations that describe the thrust force acting on such a sail system and compare its performance with respect to the conventional flat solar sail.
KW  - solar sails
Y1  - 2009
SN  - 978-087703554-1
SN  - 00653438
N1  - 19th AAS/AIAA Space Flight Mechanics Meeting; Savannah, GA; United States; 8 February 2009 through 12 February 2009
SP  - 723
EP  - 740
PB  - American Astronautical Society
CY  - San Diego, Calif.
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Wurm, P.
T1  - Mission analysis for an advanced solar photon thruster
T2  - 60th International Astronautical Congress 2009, IAC 2009
N2  - The so-called "compound solar sail", also known as "Solar Photon Thruster" (SPT), is a solar sail design concept, for which the two basic functions of the solar sail, namely light collection and thrust direction, are uncoupled. In this paper, we introduce a novel SPT concept, termed the Advanced Solar Photon Thruster (ASPT). This model does not suffer from the simplified assumptions that have been made for the analysis of compound solar sails in previous studies. We present the equations that describe the force, which acts on the ASPT. After a detailed design analysis, the performance of the ASPT with respect to the conventional flat solar sail (FSS) is investigated for three interplanetary mission scenarios: An Earth-Venus rendezvous, where the solar sail has to spiral towards the Sun, an Earth-Mars rendezvous, where the solar sail has to spiral away from the Sun, and an Earth-NEA rendezvous (to near-Earth asteroid 1996FG3), where a large orbital eccentricity change is required. The investigated solar sails have realistic near-term characteristic accelerations between 0.1 and 0.2mm/s2. Our results show that a SPT is not superior to the flat solar sail unless very idealistic assumptions are made.
KW  - Interplanetary flight
Y1  - 2009
SN  - 978-161567908-9
N1  - 60th International Astronautical Congress 2009, IAC 2009; Daejeon; South Korea; 12 October 2009 through 16 October 2009
VL  - Vol. 8
SP  - 6838
EP  - 6851
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
A1  - Loeb, Horst W.
A1  - Schartner, Karl-Heinz
T1  - A comparison of SEP and NEP for a main belt asteroid sample return mission
T2  - 7th International Symposium on Launcher Technologies, Barcelona, Spain, 02-05 April 2007
N2  - Innovative interplanetary deep space missions, like a main belt asteroid sample
return mission, require ever larger velocity increments (∆V s) and thus ever
more demanding propulsion capabilities. Providing much larger exhaust velocities than chemical high-thrust systems, electric low-thrust space-propulsion
systems can significantly enhance or even enable such high-energy missions. In
1995, a European-Russian Joint Study Group (JSG) presented a study report
on “Advanced Interplanetary Missions Using Nuclear-Electric Propulsion”
(NEP). One of the investigated reference missions was a sample return (SR)
from the main belt asteroid (19) Fortuna. The envisaged nuclear power plant,
Topaz-25, however, could not be realized and also the worldwide developments
in space reactor hardware stalled. In this paper, we investigate, whether such
a mission is also feasible using a solar electric propulsion (SEP) system and
compare our SEP results to corresponding NEP results.
Y1  - 2007
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
A1  - Häusler, Bernd
T1  - Performance requirements for near-term interplanetary solar sailcraft missions
T2  - 6th International AAAF Symposium on Space Propulsion: Propulsion for Space Transportation of the XXIst Century
N2  - Solar sailcraft provide a wide range of opportunities for high-energy low-cost missions. To date, most mission studies require a rather demanding performance that will not be realized by solar sailcraft of the first generation.
However, even with solar sailcraft of moderate performance, scientifically relevant missions are feasible. This is demonstrated with a Near Earth Asteroid sample return mission and various planetary rendezvous missions.
Y1  - 2002
N1  - 6th International AAAF Symposium on Space Propulsion: Propulsion for Space Transportation of the XXIst Century, Versailles, France, 14-16 May 2002
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Mengali, Giovanni
A1  - Quarta, Alessandro A
A1  - Macdonald, Malcolm
A1  - McInnes, Colin R
T1  - Optical solar sail degradation modelling
T2  - 1st International Symposium on Solar Sailing
N2  - We propose a simple parametric OSSD model that describes the variation of the sail film's optical coefficients with time, depending on the sail film's environmental history, i.e., the radiation dose. The primary intention of our model is not to describe the exact behavior of specific film-coating combinations in the real space environment, but to provide a more general parametric framework for describing the general optical degradation behavior of solar sails.
Y1  - 2007
N1  - 1st International Symposium on Solar Sailing 27–29 June 2007, Herrsching, Germany
SP  - 1
EP  - 27
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Kahle, Ralph
A1  - Wie, Bong
T1  - Solar sail Kinetic Energy Impactor (KEI) mission design tradeoffs for impacting and deflecting asteroid 99942 Apophis
T2  - AIAA/AAS Astrodynamics Specialist Conference and Exhibit
N2  - Near-Earth asteroid 99942 Apophis provides a typical example for the evolution of asteroid orbits that lead to Earth-impacts after a close Earth-encounter that results in a resonant return. Apophis will have a close Earth-encounter in 2029 with potential very close subsequent Earth-encounters (or even an impact) in 2036 or later, depending on whether it passes through one of several so-called gravitational keyholes during its 2029-encounter. Several pre-2029-deflection scenarios to prevent Apophis from doing this have been investigated so far. Because the keyholes are less than 1 km in size, a pre-2029 kinetic impact is clearly the best option because it requires only a small change in Apophis' orbit to nudge it out of a keyhole. A single solar sail Kinetic Energy Impactor (KEI) spacecraft that impacts Apophis from a retrograde trajectory with a very high relative velocity (75-80 km/s) during one of its perihelion passages at about 0.75 AU would be a feasible option to do this. The spacecraft consists of a 160 m x 160 m, 168 kg solar sail assembly and a 150 kg impactor. Although conventional spacecraft can also achieve the required minimum deflection of 1 km for this approx. 320 m-sized object from a prograde trajectory, our solar sail KEI concept also allows the deflection of larger objects. In this paper, we also show that, even after Apophis has flown through one of the gravitational keyholes in 2029, solar sail Kinetic Energy Impactor (KEI) spacecraft are still a feasible option to prevent Apophis from impacting the Earth, but many KEIs would be required for consecutive impacts to increase the total Earth-miss distance to a safe value. In this paper, we elaborate potential pre- and post-2029 KEI impact scenarios for a launch in 2020, and investigate tradeoffs between different mission parameters.
KW  - Solar Sail
KW  - Asteroid Deflection
KW  - Planetary Protection
KW  - Trajectory Optimization
Y1  - 2006
U6  - http://dx.doi.org/10.2514/6.2006-6178
N1  - AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 21 August 2006 - 24 August 2006, Keystone, Colorado(USA).
SP  - 1
EP  - 20
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Kahle, Ralph
A1  - Wie, Bong
T1  - Head-on impact deflection of NEAs: a case study for 99942 Apophis
T2  - Planetary Defense Conference 2007
N2  - Near-Earth asteroid (NEA) 99942 Apophis provides a typical example for the evolution of asteroid orbits that lead to Earth-impacts after a close Earth-encounter that results in a resonant return. Apophis will have a close Earth-encounter in 2029 with potential very close subsequent Earth-encounters (or even an impact) in 2036 or later, depending on whether it passes through one of several less than 1 km-sized gravitational keyholes during its 2029-encounter. A pre-2029 kinetic impact is a very favorable option to nudge the asteroid out of a keyhole. The highest impact velocity and thus deflection can be achieved from a trajectory that is retrograde to Apophis orbit. With a chemical or electric propulsion system, however, many gravity assists and thus a long time is required to achieve this. We show in this paper that the solar sail might be the better propulsion system for such a mission: a solar sail Kinetic Energy Impactor (KEI) spacecraft could impact Apophis from a retrograde trajectory with a very high relative velocity (75-80 km/s) during one of its perihelion passages. The spacecraft consists of a 160 m × 160 m, 168 kg solar sail assembly and a 150 kg impactor. Although conventional spacecraft can also achieve the required minimum deflection of 1 km for this approx. 320 m-sized object from a prograde trajectory, our solar sail KEI concept also allows the deflection of larger objects. For a launch in 2020, we also show that, even after Apophis has flown through one of the gravitational keyholes in 2029, the solar sail KEI concept is still feasible to prevent Apophis from impacting the Earth, but many KEIs would be required for consecutive impacts to increase the total Earth-miss distance to a safe value
Y1  - 2007
N1  - Planetary Defense Conference 2007, Wahington D.C., USA, 05-08 March 2007
SP  - 1
EP  - 12
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Feldmann, Marco
A1  - Espe, Clemens
A1  - Plescher, Engelbert
A1  - Konstantinidis, K.
A1  - Forstner, R.
T1  - Enceladus explorer - A maneuverable subsurface probe for autonomous navigation through deep ice
T2  - 63rd International Astronautical Congress 2012, IAC 2012; Naples; Italy; 1 October 2012 through 5 October 2012. (Proceedings of the International Astronautical Congress, IAC ; 3)
Y1  - 2012
SN  - 978-1-62276-979-7
SP  - 1756
EP  - 1766
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Baturkin, Volodymyr
A1  - Coverstone, Victoria
A1  - Diedrich, Ben
A1  - Garbe, Gregory
A1  - Görlich, Marianne
A1  - Leipold, Manfred
A1  - Lura, Franz
A1  - Macdonald, Malcolm
A1  - McInnes, Colin
A1  - Mengali, Giovanni
A1  - Quarta, Alessandro
A1  - Rios-Reyes, Leonel
A1  - Scheeres, Daniel J.
A1  - Seboldt, Wolfgang
A1  - Wie, Bong
T1  - Potential effects of optical solar sail degredation on trajectory design
T2  - AAS/AIAA Astrodynamics Specialist
N2  - The optical properties of the thin metalized polymer films that are projected for solar sails are assumed to be affected by the erosive effects of the space environment. Their degradation behavior in the real space environment, however, is to a considerable degree indefinite, because initial ground test results are controversial and relevant inspace tests have not been made so far. The standard optical solar sail models that are currently used for trajectory design do not take optical degradation into account, hence its potential effects on trajectory design have not been investigated so far. Nevertheless, optical degradation is important for high-fidelity solar sail mission design, because it decreases both the magnitude of the solar radiation pressure force acting on the sail and also the sail control authority. Therefore, we propose a simple parametric optical solar sail degradation model that describes the variation of the sail film’s optical coefficients with time, depending on the sail film’s environmental history, i.e., the radiation dose. The primary intention of our model is not to describe the exact behavior of specific film-coating combinations in the real space environment, but to provide a more general parametric framework for describing the general optical degradation behavior of solar sails. Using our model, the effects of different optical degradation behaviors on trajectory design are investigated for various exemplary missions.
Y1  - 2005
N1  - 2005 AAS/AIAA Astrodynamics Specialist Conference, 7-11.08.2005. Lake Tahoe, California
https://www.space-flight.org/AAS_meetings/2005_astro/2005_astro.html
SP  - 1
EP  - 23
ER  -