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  - Zähl, Philipp M.
A1  - Theis, Sabine
A1  - Wolf, Martin R.
A1  - Köhler, Klemens
ED  - Chen, Jessie Y. C.
ED  - Fragomeni, Gino
T1  - Teamwork in software development and what personality has to do with it - an overview
T2  - Virtual, Augmented and Mixed Reality
N2  - Due to the increasing complexity of software projects, software development is becoming more and more dependent on teams. The quality of this teamwork can vary depending on the team composition, as teams are always a combination of different skills and personality types. This paper aims to answer the question of how to describe a software development team and what influence the personality of the team members has on the team dynamics. For this purpose, a systematic literature review (n=48) and a literature search with the AI research assistant Elicit (n=20) were conducted. Result: A person’s personality significantly shapes his or her thinking and actions, which in turn influences his or her behavior in software development teams. It has been shown that team performance and satisfaction can be strongly influenced by personality. The quality of communication and the likelihood of conflict can also be attributed to personality.
KW  - Teamwork
KW  - Software
KW  - Personality
KW  - Performance
KW  - Elicit
Y1  - 2023
SN  - 978-3-031-35633-9 (Print)
SN  - 978-3-031-35634-6 (Online)
U6  - https://doi.org/10.1007/978-3-031-35634-6_10
N1  - Virtual, Augmented and Mixed Reality: 15th International Conference. VAMR 2023. 
Held as Part of the 25th HCI International Conference. HCII 2023. 
Copenhagen, Denmark. July 23–28, 2023.
SP  - 130
EP  - 153
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Dyong, Julian
T1  - Applying process mining in small and medium sized IT enterprises – challenges and guidelines
T2  - Business Process Management, 20th International Conference, BPM 2022, Proceedings
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  - https://doi.org/10.1007/978-3-031-16103-2_11
N1  - International Conference on Business Process Management (BPM 2022), Münster, Germany, Sept. 11-16, 2022
SP  - 125
EP  - 142
PB  - Springer
CY  - Cham
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  - Bung, Daniel Bernhard
A1  - Valero, Daniel
ED  - Dewals, Benjamin
T1  - Image processing techniques for velocity estimation in highly aerated flows: bubble image velocimetry vs. optical flow
T2  - Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)
Y1  - 2016
SN  - 978-1-138-02977-4
SN  - 978-1-4987-8149-7 (eBook)
U6  - https://doi.org/10.1201/b21902-31
SP  - 151
EP  - 157
PB  - CRC Press
ER  - 
TY  - CHAP
A1  - Oertel, M.
A1  - Bung, Daniel Bernhard
ED  - Crookston, B.
ED  - Tullis, B.
T1  - Scouring processes downstream a crossbar block ramp
BT  - Session 3: Scour, erosion, sedimentation
T2  - Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016
Y1  - 2016
SN  - 978-1-884575-75-4
U6  - https://doi.org/10.15142/T3340628160853
SP  - 549
EP  - 559
ER  - 
TY  - JOUR
A1  - Oertel, Mario
A1  - Bung, Daniel Bernhard
T1  - Numerische Strömungssimulationen von Fließgewässern : Praxisanwendungen und zukünftige Entwicklungen
JF  - Korrespondenz Wasserwirtschaft : KW
Y1  - 2015
SN  - 1616-430X
VL  - 8
IS  - H. 3
SP  - 177
EP  - 182
PB  - Gesellschaft zur Förderung der Abwassertechnik
CY  - Hennef
ER  - 
TY  - CHAP
A1  - Alexopoulos, Spiros
A1  - Kluczka, Sven
A1  - Vaeßen, Christiane
A1  - Roeb, M.
A1  - Neises, M.
T1  - Scenario development for efficient methanol production using CO2 and solar energy
T2  - Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012
Y1  - 2012
SP  - ID 99
CY  - Rijeka
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  - JOUR
A1  - Dachwald, Bernd
A1  - Carnelli, Ian
A1  - Vasile, Massimiliano
T1  - Evolutionary Neurocontrol: A Novel Method for Low-Thrust Gravity-Assist Trajectory Optimization / Carnelli, Ian ; Dachwald, Bernd ; Vasile, Massimiliano
JF  - Journal of guidance control and dynamics. 32 (2009), H. 2
Y1  - 2009
SN  - 0731-5090
SP  - 616
EP  - 625
PB  - AIAA
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Seefeldt, Patric
A1  - Dachwald, Bernd
T1  - Temperature increase on folded solar sail membranes
JF  - Advances in Space Research
Y1  - 2021
U6  - https://doi.org/10.1016/j.asr.2020.09.026
SN  - 0273-1177
VL  - 67
IS  - 9
SP  - 2688
EP  - 2695
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Bassam, Rasha
A1  - Digel, Ilya
A1  - Artmann, Gerhard
T1  - Effect of nitric oxide on protein thermal stability : [abstract]
N2  - As a deduction from these results, we can conclude that proteins mainly in vitro, denaturate totally at a temperature between 57°C -62°C, and they also affected by NO and different ions types. In which mainly, NO cause earlier protein denaturation, which means that, NO has a destabilizing effect on proteins, and also different ions will alter the protein denaturation in which, some ions will cause earlier protein denaturation while others not.
KW  - Stickstoffmonoxid
KW  - Proteine
KW  - Hämoglobin
KW  - nitric oxide gas
KW  - protein
KW  - hemoglobin
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Valero, Daniel
A1  - Schalko, Isabella
A1  - Friedrich, Heide
A1  - Abad, Jorge D.
A1  - Bung, Daniel Bernhard
A1  - Donchyts, Gennadii
A1  - Felder, Stefan
A1  - Ferreira, Rui M. L.
A1  - Hohermuth, Benjamin
A1  - Kramer, Matthias
A1  - Li, Danxun
A1  - Mendes, Luis
A1  - Moreno-Rodenas, Antonio
A1  - Nones, Michael
A1  - Paron, Paolo
A1  - Ruiz-Villanueva, Virginia
A1  - Wang, Ruo-Qian
A1  - Franca, Mario J.
T1  - Pathways towards democratization of hydro-environment observations and data
JF  - Iahr White Paper Series
Y1  - 2021
IS  - 1
SP  - 1
EP  - 9
PB  - International Association for Hydro-Environment Engineering and Research (IAHR)
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Maier, Christopher
A1  - Mühlbacher, Clemens
A1  - Niemüller, Tim
A1  - Steinbauer, Gerald
A1  - Vassos, Stravros
T1  - Controlling logistics robots with the action-based language YAGI
T2  - Intelligent Robotics and Applications: 9th International Conference, ICIRA 2016, Tokyo, Japan, August 22-24, 2016, Proceedings, Part I
Y1  - 2016
SN  - 978-3-319-43505-3 (Print)
SN  - 978-3-319-43506-0 (Online)
U6  - https://doi.org/10.1007/978-3-319-43506-0_46
N1  - Series: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
VL  - 9834
SP  - 525
EP  - 537
PB  - Springer
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical prediction of the wing deformation of a high speed transport aircraft type wind tunnel model by direct aeroelastic simulation
T2  - Conference proceedings : CEAS/AIAA/DGLR International Forum on Aeroelasticity and Structural Dynamics IFASD 2005 : München, June 28 - July 1, 2005. DGLR-Bericht. 2005,04
Y1  - 2005
SN  - 3-932182-43-X
PB  - DGLR
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Leimena, W.
A1  - Artmann, Gerhard
A1  - Dachwald, Bernd
A1  - Temiz Artmann, Aysegül
A1  - Gossmann, Matthias
A1  - Digel, Ilya
T1  - Feasibility of an in-situ microbial decontamination of an ice-melting probe
JF  - Eurasian Chemico-Technological Journal. 12 (2010), H. 2
Y1  - 2010
SN  - 1562-3920
SP  - 145
EP  - 150
ER  - 
TY  - CHAP
A1  - Pieper, Martin
A1  - Wählisch, Georg
T1  - Mehrwert von E-Learning durch fächerübergreifenden Einsatz
T2  - Teaching is Touching the Future & ePS 2016 - Kompetenzorientiertes Lehren, Lernen und Prüfen
Y1  - 2017
SN  - 978-3-946017-05-9
SP  - 193
EP  - 196
PB  - UVW Universitätsverlag Webler
CY  - Bielefeld
ER  - 
TY  - JOUR
A1  - Dahmann, Peter
T1  - Offen für neue Modelle. GL-Hydraulik setzt neues Simulationssystem ein
JF  - Fluid Heft Sonderpublikation Fluid-Technik. 29 (1995)
Y1  - 1995
SN  - 0015-461X
SP  - 8
EP  - 10
ER  - 
TY  - CHAP
A1  - Niemueller, Tim
A1  - Ferrein, Alexander
A1  - Reuter, Sebastian
A1  - Jeschke, Sabina
A1  - Lakemeyer, Gerhard
T1  - The RoboCup Logistics League as a Holistic Multi-Robot Smart Factory Benchmark
T2  - Proceedings of the IROS 2015 Open forum on evaluation of results, replication of experiments and benchmarking in robotics research
N2  - With autonomous mobile robots receiving increased
attention in industrial contexts, the need for benchmarks
becomes more and more an urgent matter. The RoboCup
Logistics League (RCLL) is one specific industry-inspired scenario
focusing on production logistics within a Smart Factory.
In this paper, we describe how the RCLL allows to assess the
performance of a group of robots within the scenario as a
whole, focusing specifically on the coordination and cooperation
strategies and the methods and components to achieve them.
We report on recent efforts to analyze performance of teams in
2014 to understand the implications of the current grading
scheme, and derived criteria and metrics for performance
assessment based on Key Performance Indicators (KPI) adapted
from classic factory evaluation. We reflect on differences and
compatibility towards RoCKIn, a recent major benchmarking
European project.
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Eichenbaum, Julian
A1  - Nikolovski, Gjorgji
A1  - Mülhens, Leon
A1  - Reke, Michael
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
T1  - Towards a lifelong mapping approach using Lanelet 2 for autonomous open-pit mine operations
T2  - 2023 IEEE 19th International Conference on Automation Science and Engineering (CASE)
N2  - Autonomous agents require rich environment models for fulfilling their missions. High-definition maps are a well-established map format which allows for representing semantic information besides the usual geometric information of the environment. These are, for instance, road shapes, road markings, traffic signs or barriers. The geometric resolution of HD maps can be as precise as of centimetre level. In this paper, we report on our approach of using HD maps as a map representation for autonomous load-haul-dump vehicles in open-pit mining operations. As the mine undergoes constant change, we also need to constantly update the map. Therefore, we follow a lifelong mapping approach for updating the HD maps based on camera-based object detection and GPS data. We show our mapping algorithm based on the Lanelet 2 map format and show our integration with the navigation stack of the Robot Operating System. We present experimental results on our lifelong mapping approach from a real open-pit mine.
Y1  - 2023
SN  - 979-8-3503-2069-5 (Online)
SN  - 979-8-3503-2070-1 (Print)
U6  - https://doi.org/10.1109/CASE56687.2023.10260526
N1  - 19th International Conference on Automation Science and Engineering (CASE), 26-30 August 2023, Auckland, New Zealand.
PB  - IEEE
ER  -