TY  - CHAP
A1  - Harzheim, Thomas
A1  - Heuermann, Holger
A1  - Marso, Michel
T1  - An Adaptive Biasing Method for SRD Comb Generators
T2  - 2016 German Microwave Conference (GeMiC)
Y1  - 2016
U6  - https://doi.org/10.1109/GEMIC.2016.7461613
N1  - GeMiC 2016 ; March 14–16, 2016, Bochum, Germany
SP  - 289
EP  - 292
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Schoutetens, Frederic
A1  - Dachwald, Bernd
A1  - Heiligers, Jeannette
T1  - Optimisation of photon-sail trajectories in the alpha-centauri system using evolutionary neurocontrol
T2  - 8th ICATT 2021
N2  - With the increased interest for interstellar exploration after the discovery of exoplanets and the proposal by Breakthrough Starshot, this paper investigates the optimisation of photon-sail trajectories in Alpha Centauri. The prime objective is to find the optimal steering strategy for a photonic sail to get captured around one of the stars after a minimum-time transfer from Earth. By extending the idea of the Breakthrough Starshot project with a deceleration phase upon arrival, the mission’s scientific yield will be increased. As a secondary objective, transfer trajectories between the stars and orbit-raising manoeuvres to explore the habitable zones of the stars are investigated. All trajectories are optimised for minimum time of flight using the trajectory optimisation software InTrance. Depending on the sail technology, interstellar travel times of 77.6-18,790 years can be achieved, which presents an average improvement of 30% with respect to previous work. Still, significant technological development is required to reach and be captured in the Alpha-Centauri system in less than a century. Therefore, a fly-through mission arguably remains the only option for a first exploratory mission to Alpha Centauri, but the enticing results obtained in this work provide perspective for future long-residence missions to our closest neighbouring star system.
Y1  - 2021
N1  - 8th ICATT (International Conference on Astrodynamics Tools and Techniques), 23 - 25 June 2021, Virtual
SP  - 1
EP  - 15
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
N2  - Gamification and gamified information systems (GIS) apply video game elements to encourage the work on boring and everyday tasks. Meanwhile, several research works provide evidence that gamification increases efficiency and effectivity of such tasks. The paper at hand investigates the health care sector, which is challenged with cost pressure and suffers in process efficiency. We hypothesize that GIS may improve the efficiency and quality of care processes. By applying an interview-based content analysis, the paper at hand evaluates gamification elements in an assisted living environment and provides three research contributions. First, insights into relevant GIS affordances and application examples for assisted living facilities are given. Second, assisted living experts evaluate GIS design guidelines. Both the relevant affordances and design principles comprise a basis for the development of a GIS for social workers in assisted living facilities. Third, potential adoption barriers and design guidelines for GIS in assisted living are presented.
Y1  - 2020
U6  - https://doi.org/10.30844/wi_2020_f3-eggert
N1  - 15. Internationale Tagung zur Wirtschaftsinformatik, 09. – 11.03.2020, Potsdam
PB  - GITO
CY  - Berlin
ER  - 
TY  - CHAP
A1  - König, Johannes Alexander
A1  - Kaiser, Steffen
A1  - Wolf, Martin R.
T1  - Entwicklung und Evaluierung eines Regeleditors für die grafische Erstellung von „Smart Living Environment“-Services
T2  - Angewandte Forschung in der Wirtschaftsinformatik 2019 : Tagungsband zur 32. AKWI-Jahrestagung / hrsg. von Martin R. Wolf, Thomas Barton, Frank Herrmann, Vera G. Meister, Christian Müller, Christian Seel
N2  - In diesem Paper wird die Entwicklung und Evaluation eines grafischen Regeleditors für das Erstellen von „Smart Living Environments“-Services vorgestellt. Dafür werden zunächst die Deduktion und Implementierung des grafischen Regeleditors erläutert. Anschließend wird eine Probandenstudie vorgestellt, in welcher der Mehrwert bezogen auf die Aspekte Zeit, Fehleranfälligkeit und Gebrauchstauglichkeit festgestellt wird.
Y1  - 2019
SN  - 978-3-944330-62-4
SP  - 234
EP  - 243
PB  - mana-Buch
CY  - Heide
ER  - 
TY  - CHAP
A1  - Seefeldt, Patric
A1  - Bauer, Waldemar
A1  - Dachwald, Bernd
A1  - Grundmann, Jan Thimo
A1  - Straubel, Marco
A1  - Sznajder, Maciej
A1  - Tóth, Norbert
A1  - Zander, Martin E.
T1  - Large lightweight deployable structures for planetary defence: solar sail propulsion, solar concentrator payloads, large-scale photovoltaic power
T2  - 4th IAA Planetary Defense Conference - PDC 2015, 13-17 April 2015, Frascati, Roma, Italy
Y1  - 2015
N1  - IAA-PDC-15-P-20
ER  - 
TY  - CHAP
A1  - Kapoor, Hrshi
A1  - Boller, Christian
A1  - Giljohann, Sebastian
A1  - Braun, Carsten
T1  - Strategies for structural health monitoring implementation potential assessment in aircraft operational life extension considerations
T2  - 2nd International Symposium on NDT in Aerospace : November 22-24, 2010 Hamburg, Germany
Y1  - 2010
SN  - 978-3-940283-28-3
PB  - Dt. Gesellschaft für Zerstörungsfreie Prüfung
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Bergener, Philipp
A1  - Breuker, Dominic
A1  - Delfmann, Patrick
A1  - Eggert, Mathias
T1  - An Efficient Business Process Compliance Checking Approach
T2  - Governance and Sustainability in Information Systems. Managing the Transfer and Diffusion of IT : IFIP WG 8.6 International Working Conference, Hamburg, Germany, September 22-24, 2011. Proceedings
Y1  - 2011
U6  - https://doi.org/10.1007/978-3-642-24148-2_19
SP  - 282
EP  - 287
PB  - Springer
CY  - Berlin, Heidelberg
ER  - 
TY  - CHAP
A1  - Lahrs, Lennart
A1  - Krisam, Pierre
A1  - Herrmann, Ulf
T1  - Envisioning a collaborative energy system planning platform for the energy transition at the district level
T2  - ECOS 2023. The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
N2  - Residential and commercial buildings account for more than one-third of global energy-related greenhouse gas emissions. Integrated multi-energy systems at the district level are a promising way to reduce greenhouse gas emissions by exploiting economies of scale and synergies between energy sources. Planning district energy systems comes with many challenges in an ever-changing environment. Computational modelling established itself as the state-of-the-art method for district energy system planning. Unfortunately, it is still cumbersome to combine standalone models to generate insights that surpass their original purpose. Ideally, planning processes could be solved by using modular tools that easily incorporate the variety of competing and complementing computational models. Our contribution is a vision for a collaborative development and application platform for multi-energy system planning tools at the district level. We present challenges of district energy system planning identified in the literature and evaluate whether this platform can help to overcome these challenges. Further, we propose a toolkit that represents the core technical elements of the platform. Lastly, we discuss community management and its relevance for the success of projects with collaboration and knowledge sharing at their core.
KW  - Energy system planning
KW  - District energy planning platform
KW  - District data model
KW  - Renewable energy integration
Y1  - 2023
U6  - https://doi.org/10.52202/069564-0284
N1  - ECOS 2023. The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 25-30 JUNE, 2023, Las Palmas de Gran Canaria, Spain
SP  - 3163
EP  - 3170
PB  - Procedings of ECOS 2023
ER  - 
TY  - CHAP
A1  - Niemueller, Tim
A1  - Reuter, Sebastian
A1  - Ferrein, Alexander
ED  - Almeida, Luis
T1  - Fawkes for the RoboCup Logistics League
T2  - RoboCup 2015: Robot World Cup XIX
Y1  - 2016
SN  - 978-3-319-29339-4
U6  - https://doi.org/10.1007/978-3-319-29339-4_31
N1  - Lecture Notes in Computer Science ; 9513
SP  - 365
EP  - 373
PB  - Springer International Publishing
CY  - Cham
ER  - 
TY  - CHAP
A1  - Booysen, Tracy
A1  - Mathew, Thomas
A1  - Knox, Greig
A1  - Fong, W. K.
A1  - Stüttgen, Marcel
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
T1  - The Scarab Project
T2  - ICRA 2015 Developing Countries Forum
N2  - Urban Search and Rescue (USAR) is an active research
field in the robotics community. Despite recent advances
for many open research questions, these kind of systems are
not widely used in real rescue missions. One reason is that such
systems are complex and not (yet) very reliable; another is that
one has to be an robotic expert to run such a system. Moreover,
available rescue robots are very expensive and the benefits of
using them are still limited.
In this paper, we present the Scarab robot, an alternative
design for a USAR robot. The robot is light weight, humanpackable
and its primary purpose is that of extending the
rescuer’s capability to sense the disaster site. The idea is that a
responder throws the robot to a certain spot. The robot survives
the impact with the ground and relays sensor data such as
camera images or thermal images to the responder’s hand-held
control unit from which the robot can be remotely controlled.
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Schade, Maximilian
A1  - Bröhl, Florian
A1  - Moriz, Alexander
ED  - Mandviwalla, Munir
ED  - Söllner, Matthias
ED  - Tuunanen, Tuure
T1  - Generating synthetic LiDAR point cloud data for object detection using the Unreal Game Engine
T2  - Design Science Research for a Resilient Future (DESRIST 2024)
N2  - Object detection based on artificial intelligence is ubiquitous in today’s computer vision research and application. The training of the neural networks for object detection requires large and high-quality datasets. Besides datasets based on image data, datasets derived from point clouds offer several advantages. However, training datasets are sparse and their generation requires a lot of effort, especially in industrial domains. A solution to this issue offers the generation of synthetic point cloud data. Based on the design science research method, the work at hand proposes an approach and its instantiation for generating synthetic point cloud data based on the Unreal Engine. The point cloud quality is evaluated by comparing the synthetic cloud to a real-world point cloud. Within a practical example the applicability of the Unreal Game engine for synthetic point cloud generation could be successfully demonstrated.
Y1  - 2024
SN  - 978-3-031-61174-2 (Print)
SN  - 978-3-031-61175-9 (Online)
U6  - https://doi.org/10.1007/978-3-031-61175-9_20
N1  - 19th International Conference on Design Science Research in Information Systems and Technology, DESRIST 2024, Trollhättan, Sweden, June 3–5, 2024
SP  - 295
EP  - 309
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Möhring, S.
A1  - Wulfhorst, H.
A1  - Roth, J.
A1  - Tippkötter, Nils
T1  - Pretreatment strategies for lignocellulosic biomass
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 131
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Sauerborn, Markus
A1  - Liebenstund, Lena
A1  - Raue, Markus
A1  - Mang, Thomas
A1  - Herrmann, Ulf
A1  - Dueing, Andreas
T1  - Analytic method for material aging and quality analyzing to forecast long time stability of plastic micro heliostat components
T2  - AIP Conference Proceedings
Y1  - 2017
U6  - https://doi.org/10.1063/1.4984388
VL  - 1850
IS  - 1
SP  - 030045-1
EP  - 030045-8
ER  - 
TY  - CHAP
A1  - Roth, J.
A1  - Möhring, S.
A1  - Tippkötter, Nils
T1  - Characterization and evaluation of lignocellulosic biomass 130 hydrolysates for ABE fermentation
T2  - New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany
Y1  - 2016
SP  - 130
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Frauenrath, Tobias
A1  - Gömmel, Andreas
A1  - Butenweg, Christoph
A1  - Otten, Mario
A1  - Niendorf, Thoralf
T1  - 3D mapping of vocal fold geometry during articulatory maneuvers using ultrashort echo time imaging at 3.0 T
T2  - ISMRM-ESMRMB joint annual meeting 2010, Band 4
Y1  - 2010
SN  - 978-1-617-82008-3
N1  - ISMRM-ESMRMB joint annual meeting 2010 : Stockholm, Sweden, 1 - 7 May 2010
SP  - 3087
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Warerkar, Shashikant
A1  - Schmitz, Stefan
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Reißel, Martin
A1  - Tamme, Rainer
T1  - Air-sand heat exchanger for high-temperature storage
T2  - Proceedings of the ASME 3rd International Conference on Energy Sustainability : July 19 - 23, 2009, San Francisco, California, USA. Vol. 2
Y1  - 2009
SN  - 978-0-7918-4890-6
SP  - 655
EP  - 661
PB  - ASME
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Schorn, Christian
A1  - Weis, Fabian
A1  - Anthrakidis, Anette
A1  - Schwarzer, Klemens
A1  - Schmitz, Mark
A1  - Herrmann, Ulf
T1  - Entwicklung und Bewertung eines Parabolrinnenkollektors zur Prozesswärmebereitstellung
T2  - 26. Symposium Thermische Solarenergie, 20.-22.04.2016 in Bad Staffelstein
Y1  - 2016
N1  - 26. OTTI Symposium Thermische Solarenergie
SP  - 1
EP  - 13
ER  - 
TY  - CHAP
A1  - Digel, Ilya
A1  - Demirci, Taylan
A1  - Trzewik, Jürgen
A1  - Linder, Peter
A1  - Temiz Artmann, Aysegül
T1  - Fibroblast response to mechanical stress: role of the adhesion substrate : [abstract]
N2  - Mechanical stimulation of the cells resulted in evident changes in the cell morphology, protein composition and gene expression. Microscopically, additional formation of stress fibers accompanied by cell re-arrangements in a monolayer was observed. Also, significant activation of p53 gene was revealed as compared to control. Interestingly, the use of CellTech membrane coating induced cell death after mechanical stress had been applied. Such an effect was not detected when fibronectin had been used as an adhesion substrate.
KW  - Fibroblast
KW  - Mechanische Beanspruchung
KW  - celldrum technology
Y1  - 2004
ER  - 
TY  - CHAP
A1  - Loeb, Horst W.
A1  - Schartner, Karl-Heinz
A1  - Dachwald, Bernd
A1  - Ohndorf, Andreas
A1  - Seboldt, Wolfgang
T1  - An Interstellar – Heliopause mission using a combination of solar/radioisotope electric propulsion
T2  - Presented at the 32nd International Electric Propulsion Conference
N2  - There is common agreement within the scientific community that in order to understand our local galactic environment it will be necessary to send a spacecraft into the region beyond the solar wind termination shock. Considering distances of 200 AU for a new mission, one needs a spacecraft travelling at a speed of close to 10 AU/yr in order to keep the mission duration in the range of less than 25 yrs, a transfer time postulated by ESA.Two propulsion options for the mission have been proposed and discussed so far: the solar sail propulsion and the ballistic/radioisotope electric propulsion. As a further alternative, we here investigate a combination of solar-electric propulsion and radioisotope-electric propulsion. The solar-electric propulsion stage consists of six 22 cm diameter “RIT-22”ion thrusters working with a high specific impulse of 7377 s corresponding to a positive grid voltage of 5 kV. Solar power of 53 kW BOM is provided by a light-weight solar array. The REP-stage consists of four space-proven 10 cm diameter “RIT-10” ion thrusters that will be operating one after the other for 9 yrs in total. Four advanced radioisotope generators provide 648 W at BOM. The scientific instrument package is oriented at earlier studies. For its mass and electric power requirement 35 kg and 35 W are assessed, respectively. Optimized trajectory calculations, treated in a separate contribution, are based on our “InTrance” method.The program yields a burn out of the REP stage in a distance of 79.6 AU for a usage of 154 kg of Xe propellant. With a C3 = 45,1 (km/s)2 a heliocentric probe velocity of 10 AU/yr is reached at this distance, provided a close Jupiter gravity assist adds a velocity increment of 2.7 AU/yr. A transfer time of 23.8 yrs results for this scenario requiring about 450 kg Xe for the SEP stage, jettisoned at 3 AU. We interpret the SEP/REP propulsion as a competing alternative to solar sail and ballistic/REP propulsion. Omiting a Jupiter fly-by even allows more launch flexibility, leaving the mission duration in the range of the ESA specification.
Y1  - 2011
N1  - 32nd International Electric Propulsion Conference, 11-15 September. Wiesbaden, Germany
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Handschuh, Nils
A1  - Stollenwerk, Dominik
A1  - Borchert, Jörg
T1  - Operation of thermal storage power plants under high renewable grid penetration
T2  - NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems
N2  - The planned coal phase-out in Germany by 2038 will lead to the dismantling of power plants with a total capacity of approx. 30 GW. A possible further use of these assets is the conversion of the power plants to thermal storage power plants; the use of these power plants on the day-ahead market is considerably limited by their technical parameters. In this paper, the influence of the technical boundary conditions on the operating times of these storage facilities is presented. For this purpose, the storage power plants were described as an MILP problem and two price curves, one from 2015 with a relatively low renewable penetration (33 %) and one from 2020 with a high renewable energy penetration (51 %) are compared. The operating times were examined as a function of the technical parameters and the critical influencing factors were investigated. The thermal storage power plant operation duration and the energy shifted with the price curve of 2020
increases by more than 25 % compared to 2015.
KW  - storage optimisation
KW  - storage dispatch
KW  - thermal storage
Y1  - 2021
SN  - 978-3-8007-5651-3
N1  - NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems. 13-14 September 2021. Hamburg, Germany
SP  - 261
EP  - 265
PB  - VDE Verlag
CY  - Berlin
ER  -