@inproceedings{MertensBraunerBaieretal.2022,
  author    = {Mertens, Alexander and Brauner, Philipp and Baier, Ralph and Brillowski, Florian and Dammers, Hannah and van Dyck, Marc and Kong, Iris and K{\"o}nigs, Peter and Kordtomeikel, Frauke and Liehner, Gian Luca and P{\"u}tz, Sebastian and Rodermann, Niklas and Schaar, Anne Kathrin and Steuer-Dankert, Linda and Vervier, Luisa and Wlecke, Shari and Gries, Thomas and Leicht-Scholten, Carmen and Nagel, Saskia K. and Piller, Frank T. and Schuh, G{\"u}nther and Ziefle, Martina and Nitsch, Verena},
  title     = {Modelling Human Factors in Cyber Physical Production Systems by the Integration of Human Digital Shadows},
  series = {Modellierung 2022 Satellite Events},
  booktitle = {Modellierung 2022 Satellite Events},
  editor    = {Michael, Judith and Pfeiffer, J{\´e}r{\^o}me and Wortmann, Andreas},
  publisher = {GI Gesellschaft f{\"u}r Informatik},
  address   = {Bonn},
  doi       = {10.18420/modellierung2022ws-018},
  pages     = {147 -- 149},
  year      = {2022},
  abstract  = {The future of industrial manufacturing and production will increasingly manifest in the form of cyber-physical production systems. Here, Digital Shadows will act as mediators between the physical and digital world to model and operationalize the interactions and relationships between different entities in production systems. Until now, the associated concepts have been primarily pursued and implemented from a technocentric perspective, in which human actors play a subordinate role, if they are considered at all. This paper outlines an anthropocentric approach that explicitly considers the characteristics, behavior, and traits and states of human actors in socio-technical production systems. For this purpose, we discuss the potentials and the expected challenges and threats of creating and using Human Digital Shadows in production.},
  language  = {en}
}
@article{HartungDondetiCastleford2007,
  author    = {Hartung, Frank and Dondeti, L. and Castleford, F.},
  title     = {Multimedia Internet KEYing (MIKEY) General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport / Dondeti, L. ; Castleford, D. ; Hartung, F.},
  pages     = {1 -- 7},
  year      = {2007},
  language  = {en}
}
@article{HartungSchiederKampmannetal.2006,
  author    = {Hartung, Frank and Schieder, Andreas and Kampmann, Markus and Vorwerk, Marc},
  title     = {Network Supported Media Delivery in Ambient Networks (Netzwerkunterst{\"u}tzte Medienverteilung) / Schieder, Andreas ; Kampmann, Markus ; Hartung, Frank ; Vorwerk, Marc ; Rembarz, Ren{\´e}},
  series = {it - Information Technology . 48 (2006), H. 5},
  journal   = {it - Information Technology . 48 (2006), H. 5},
  isbn      = {1611-2776},
  pages     = {264 -- 273},
  year      = {2006},
  language  = {en}
}
@book{EngelnMuellgesUhlig1996,
  author    = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank},
  title     = {Numeric Algorithms with Fortran},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60529-0},
  pages     = {XXII, 602 S. : Ill., graph. Darst. + 1 CD-ROM},
  year      = {1996},
  language  = {en}
}
@book{EngelnMuellgesUhlig1996,
  author    = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank},
  title     = {Numerical algorithms with C},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60530-0},
  pages     = {XXII, 596 S. : graph. Darst. + 1 CD-ROM},
  year      = {1996},
  language  = {en}
}
@inproceedings{MoehrenBergmannJanseretal.2023,
  author    = {M{\"o}hren, Felix and Bergmann, Ole and Janser, Frank and Braun, Carsten},
  title     = {On the determination of harmonic propeller loads},
  series = {AIAA SCITECH 2023 Forum},
  booktitle = {AIAA SCITECH 2023 Forum},
  publisher = {AIAA},
  doi       = {10.2514/6.2023-2404},
  pages     = {12 Seiten},
  year      = {2023},
  abstract  = {Dynamic loads significantly impact the structural design of propeller blades due to fatigue and static strength. Since propellers are elastic structures, deformations and aerodynamic loads are coupled. In the past, propeller manufacturers established procedures to determine unsteady aerodynamic loads and the structural response with analytical steady-state calculations. According to the approach, aeroelastic coupling primarily consists of torsional deformations. They neglect bending deformations, deformation velocities, and inertia terms. This paper validates the assumptions above for a General Aviation propeller and a lift propeller for urban air mobility or large cargo drones. Fully coupled reduced-order simulations determine the dynamic loads in the time domain. A quasi-steady blade element momentum approach transfers loads to one-dimensional finite beam elements. The simulation results are in relatively good agreement with the analytical method for the General Aviation propeller but show increasing errors for the slender lift propeller. The analytical approach is modified to consider the induced velocities. Still, inertia and velocity proportional terms play a significant role for the lift propeller due to increased elasticity. The assumption that only torsional deformations significantly impact the dynamic loads of propellers is not valid. Adequate determination of dynamic loads of such designs requires coupled aeroelastic simulations or advanced analytical procedures.},
  language  = {en}
}
@article{MoehrenBergmannJanseretal.2023,
  author    = {M{\"o}hren, Felix and Bergmann, Ole and Janser, Frank and Braun, Carsten},
  title     = {On the influence of elasticity on propeller performance: a parametric study},
  series = {CEAS Aeronautical Journal},
  volume    = {14},
  journal   = {CEAS Aeronautical Journal},
  publisher = {Springer Nature},
  address   = {Berlin},
  issn      = {1869-5590 (Online)},
  doi       = {10.1007/s13272-023-00649-y},
  pages     = {311 -- 323},
  year      = {2023},
  abstract  = {The aerodynamic performance of propellers strongly depends on their geometry and, consequently, on aeroelastic deformations. Knowledge of the extent of the impact is crucial for overall aircraft performance. An integrated simulation environment for steady aeroelastic propeller simulations is presented. The simulation environment is applied to determine the impact of elastic deformations on the aerodynamic propeller performance. The aerodynamic module includes a blade element momentum approach to calculate aerodynamic loads. The structural module is based on finite beam elements, according to Timoshenko theory, including moderate deflections. Several fixed-pitch propellers with thin-walled cross sections made of both isotropic and non-isotropic materials are investigated. The essential parameters are varied: diameter, disc loading, sweep, material, rotational, and flight velocity. The relative change of thrust between rigid and elastic blades quantifies the impact of propeller elasticity. Swept propellers of large diameters or low disc loadings can decrease the thrust significantly. High flight velocities and low material stiffness amplify this tendency. Performance calculations without consideration of propeller elasticity can lead to decreased efficiency. To avoid cost- and time-intense redesigns, propeller elasticity should be considered for swept planforms and low disc loadings.},
  language  = {en}
}
@article{BergmannMoehrenBraunetal.2023,
  author    = {Bergmann, Ole and M{\"o}hren, Felix and Braun, Carsten and Janser, Frank},
  title     = {On the influence of elasticity on swept propeller noise},
  series = {AIAA SCITECH 2023 Forum},
  journal   = {AIAA SCITECH 2023 Forum},
  publisher = {AIAA},
  address   = {Reston, Va.},
  doi       = {10.2514/6.2023-0210},
  year      = {2023},
  abstract  = {High aerodynamic efficiency requires propellers with high aspect ratios, while propeller sweep potentially reduces noise. Propeller sweep and high aspect ratios increase elasticity and coupling of structural mechanics and aerodynamics, affecting the propeller performance and noise. Therefore, this paper analyzes the influence of elasticity on forward-swept, backward-swept, and unswept propellers in hover conditions. A reduced-order blade element momentum approach is coupled with a one-dimensional Timoshenko beam theory and Farassat's formulation 1A. The results of the aeroelastic simulation are used as input for the aeroacoustic calculation. The analysis shows that elasticity influences noise radiation because thickness and loading noise respond differently to deformations. In the case of the backward-swept propeller, the location of the maximum sound pressure level shifts forward by 0.5 °, while in the case of the forward-swept propeller, it shifts backward by 0.5 °. Therefore, aeroacoustic optimization requires the consideration of propeller deformation.},
  language  = {en}
}
@inproceedings{NeuJanserKhatibietal.2015,
  author    = {Neu, Eugen and Janser, Frank and Khatibi, Akbar A. and Orifici, Adrian C.},
  title     = {Operational modal analysis of a cantilever in a wind tunnel using optical fiber bragg grating sensors},
  series = {6th International Operational Modal Analysis Conference. IOMAC´15. 2015 May 12-14 Gijon - Spain},
  booktitle = {6th International Operational Modal Analysis Conference. IOMAC´15. 2015 May 12-14 Gijon - Spain},
  doi       = {10.13140/RG.2.1.3753.0324},
  pages     = {10 S.},
  year      = {2015},
  language  = {en}
}
@article{NeuJanserKhatibietal.2016,
  author    = {Neu, Eugen and Janser, Frank and Khatibi, Akbar A. and Braun, Carsten and Orifici, Adrian C.},
  title     = {Operational Modal Analysis of a wing excited by transonic flow},
  series = {Aerospace Science and Technology},
  volume    = {49},
  journal   = {Aerospace Science and Technology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1270-9638},
  doi       = {10.1016/j.ast.2015.11.032},
  pages     = {73 -- 79},
  year      = {2016},
  abstract  = {Operational Modal Analysis (OMA) is a promising candidate for flutter testing and Structural Health Monitoring (SHM) of aircraft wings that are passively excited by wind loads. However, no studies have been published where OMA is tested in transonic flows, which is the dominant condition for large civil aircraft and is characterized by complex and unique aerodynamic phenomena. We use data from the HIRENASD large-scale wind tunnel experiment to automatically extract modal parameters from an ambiently excited wing operated in the transonic regime using two OMA methods: Stochastic Subspace Identification (SSI) and Frequency Domain Decomposition (FDD). The system response is evaluated based on accelerometer measurements. The excitation is investigated from surface pressure measurements. The forcing function is shown to be non-white, non-stationary and contaminated by narrow-banded transonic disturbances. All these properties violate fundamental OMA assumptions about the forcing function. Despite this, all physical modes in the investigated frequency range were successfully identified, and in addition transonic pressure waves were identified as physical modes as well. The SSI method showed superior identification capabilities for the investigated case. The investigation shows that complex transonic flows can interfere with OMA. This can make existing approaches for modal tracking unsuitable for their application to aircraft wings operated in the transonic flight regime. Approaches to separate the true physical modes from the transonic disturbances are discussed.},
  language  = {en}
}
@article{ThielemannBock1994,
  author    = {Thielemann, Frank and Bock, J{\"u}rgen},
  title     = {Organization and management of German-Russian joint ventures. Bock, J{\"u}rgen; Thielemann, Frank},
  series = {International journal of technology management. 9 (1994), H. 8},
  journal   = {International journal of technology management. 9 (1994), H. 8},
  isbn      = {0267-5730},
  pages     = {864 -- 879},
  year      = {1994},
  language  = {en}
}
@article{LuisierLempiaeinenScherbichleretal.2014,
  author    = {Luisier, Rapha{\"e}lle and Lempi{\"a}inen, Harri and Scherbichler, Nina and Braeuning, Albert and Geissler, Miriam and Dubost, Valerie and M{\"u}ller, Arne and Scheer, Nico and Chibout, Salah-Dine and Hara, Hisanori and Picard, Frank and Theil, Diethilde and Couttet, Philippe and Vitobello, Antonio and Grenet, Olivier and Grasl-Kraupp, Bettina and Ellinger-Ziegelbauer, Heidrung and Thomson, John P. and Meehan, Richard R. and Elcombe, Clifford R. and Henderson, Colin J. and Wolf, C. Roland and Schwarz, Michael and Moulin, Pierre and Terranova, Remi and Moggs, Jonathan G.},
  title     = {Phenobarbital Induces Cell Cycle Transcriptional Responses in Mouse Liver Humanized for Constitutive Androstane and Pregnane X Receptors},
  series = {Toxicological Sciences},
  volume    = {139},
  journal   = {Toxicological Sciences},
  number    = {2},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {1094-2025},
  doi       = {https://doi.org/10.1093/toxsci/kfu038},
  pages     = {501 -- 511},
  year      = {2014},
  abstract  = {The constitutive androstane receptor (CAR) and the pregnane X receptor (PXR) are closely related nuclear receptors involved in drug metabolism and play important roles in the mechanism of phenobarbital (PB)-induced rodent nongenotoxic hepatocarcinogenesis. Here, we have used a humanized CAR/PXR mouse model to examine potential species differences in receptor-dependent mechanisms underlying liver tissue molecular responses to PB. Early and late transcriptomic responses to sustained PB exposure were investigated in liver tissue from double knock-out CAR and PXR (CARᴷᴼ-PXRᴷᴼ), double humanized CAR and PXR (CARʰ-PXRʰ), and wild-type C57BL/6 mice. Wild-type and CARʰ-PXRʰ mouse livers exhibited temporally and quantitatively similar transcriptional responses during 91 days of PB exposure including the sustained induction of the xenobiotic response gene Cyp2b10, the Wnt signaling inhibitor Wisp1, and noncoding RNA biomarkers from the Dlk1-Dio3 locus. Transient induction of DNA replication (Hells, Mcm6, and Esco2) and mitotic genes (Ccnb2, Cdc20, and Cdk1) and the proliferation-related nuclear antigen Mki67 were observed with peak expression occurring between 1 and 7 days PB exposure. All these transcriptional responses were absent in CARᴷᴼ-PXRᴷᴼ mouse livers and largely reversible in wild-type and CARʰ-PXRʰ mouse livers following 91 days of PB exposure and a subsequent 4-week recovery period. Furthermore, PB-mediated upregulation of the noncoding RNA Meg3, which has recently been associated with cellular pluripotency, exhibited a similar dose response and perivenous hepatocyte-specific localization in both wild-type and CARʰ-PXRʰ mice. Thus, mouse livers coexpressing human CAR and PXR support both the xenobiotic metabolizing and the proliferative transcriptional responses following exposure to PB.},
  language  = {en}
}
@inproceedings{KleineKallweitMichauxetal.2016,
  author    = {Kleine, Harald and Kallweit, Stephan and Michaux, Frank and Havermann, Marc and Olivier, Herbert},
  title     = {PIV Measurement of Shock Wave Diffraction},
  series = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon},
  booktitle = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon},
  pages     = {1 -- 14},
  year      = {2016},
  language  = {en}
}
@article{GebhardtSchmidt2002,
  author    = {Gebhardt, Andreas and Schmidt, Frank-Michael},
  title     = {Practical experiences with making and finishing of coloured models using 3D printing},
  year      = {2002},
  language  = {en}
}
@incollection{KrokerHoffschmidtSchwarzeretal.2008,
  author    = {Kroker, Jan and Hoffschmidt, Bernhard and Schwarzer, Klemens and Sp{\"a}te, Frank},
  title     = {PTC 1000 modular parabolic trough collector},
  series = {Process heat collectors : state of the art within task 33/IV ; IEA SHC-Task 33 and SolarPACES-Task IV: Solar heat for industrial processes : F{\"o}rderkennzeichen BMBF 0329273A / Solar Heating and Cooling Executive Committee of the International Energy Agency (IEA) ; ed. Werner Weiss},
  booktitle = {Process heat collectors : state of the art within task 33/IV ; IEA SHC-Task 33 and SolarPACES-Task IV: Solar heat for industrial processes : F{\"o}rderkennzeichen BMBF 0329273A / Solar Heating and Cooling Executive Committee of the International Energy Agency (IEA) ; ed. Werner Weiss},
  publisher = {AEE INTEC},
  address   = {Gleisdorf},
  pages     = {45 -- 46},
  year      = {2008},
  language  = {en}
}
@article{RaffeisAdjeiKyeremehVroomenetal.2020,
  author    = {Raffeis, Iris and Adjei-Kyeremeh, Frank and Vroomen, Uwe and Westhoff, Elmar and Bremen, Sebastian and Hohoi, Alexandru and B{\"u}hrig-Polaczek, Andreas},
  title     = {Qualification of a Ni-Cu alloy for the laser powder bed fusion process (LPBF): Its microstructure and mechanical properties},
  series = {Applied Sciences},
  volume    = {10},
  journal   = {Applied Sciences},
  number    = {Art. 3401},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2076-3417},
  doi       = {10.3390/app10103401},
  pages     = {1 -- 15},
  year      = {2020},
  abstract  = {As researchers continue to seek the expansion of the material base for additive manufacturing, there is a need to focus attention on the Ni-Cu group of alloys which conventionally has wide industrial applications. In this work, the G-NiCu30Nb casting alloy, a variant of the Monel family of alloys with Nb and high Si content is, for the first time, processed via the laser powder bed fusion process (LPBF). Being novel to the LPBF processes, optimum LPBF parameters were determined, and hardness and tensile tests were performed in as-built conditions and after heat treatment at 1000 °C. Microstructures of the as-cast and the as-built condition were compared. Highly dense samples (99.8\% density) were achieved after varying hatch distance (80 µm and 140 µm) with scanning speed (550 mm/s-1500 mm/s). There was no significant difference in microhardness between varied hatch distance print sets. Microhardness of the as-built condition (247 HV0.2) exceeded the as-cast microhardness (179 HV0.2.). Tensile specimens built in vertical (V) and horizontal (H) orientations revealed degrees of anisotropy and were superior to conventionally reported figures. Post heat treatment increased ductility from 20\% to 31\% (V), as well as from 16\% to 25\% (H), while ultimate tensile strength (UTS) and yield strength (YS) were considerably reduced.},
  language  = {en}
}
@article{HartungBaldoHornetal.2004,
  author    = {Hartung, Frank and Baldo, N. and Horn, U. and Kampmann, M.},
  title     = {RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;},
  series = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  journal   = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  pages     = {1817 -- 1821},
  year      = {2004},
  language  = {en}
}
@inproceedings{WaldmannVeraDachwaldetal.2018,
  author    = {Waldmann, Christoph and Vera, Jean-Pierre de and Dachwald, Bernd and Strasdeit, Henry and Sohl, Frank and Hanff, Hendrik and Kowalski, Julia and Heinen, Dirk and Macht, Sabine and Bestmann, Ulf and Meckel, Sebastian and Hildebrandt, Marc and Funke, Oliver and Gehrt, Jan-J{\"o}ran},
  title     = {Search for life in ice-covered oceans and lakes beyond Earth},
  series = {2018 IEEE/OES Autonomous Underwater Vehicle Workshop, Proceedings November 2018, Article number 8729761},
  booktitle = {2018 IEEE/OES Autonomous Underwater Vehicle Workshop, Proceedings November 2018, Article number 8729761},
  doi       = {10.1109/AUV.2018.8729761},
  year      = {2018},
  abstract  = {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.},
  language  = {en}
}
@inproceedings{GaldiHartungDugelay2019,
  author    = {Galdi, Chiara and Hartung, Frank and Dugelay, Jean-Luc},
  title     = {Socrates: A database of realistic data for source camera recognition on smartphones},
  series = {Proceedings of the 8th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM},
  booktitle = {Proceedings of the 8th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM},
  isbn      = {978-989-758-351-3},
  doi       = {10.5220/0007403706480655},
  pages     = {648 -- 655},
  year      = {2019},
  language  = {en}
}
@inproceedings{MelissSpaete1996,
  author    = {Meliß, Michael and Sp{\"a}te, Frank},
  title     = {Solar-Campus J{\"u}lich - an interdisciplinary project},
  series = {EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3},
  booktitle = {EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3},
  publisher = {DGS-Sonnenenergie},
  address   = {M{\"u}nchen},
  pages     = {1281 -- 1285},
  year      = {1996},
  language  = {en}
}
@article{FerreinDyllaLakemeyer2003,
  author    = {Ferrein, Alexander and Dylla, Frank and Lakemeyer, Gerhard},
  title     = {Specifying Multirobot Coordination in ICPGolog - From Simulation towards Real Robots / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  pages     = {1 -- 10},
  year      = {2003},
  language  = {en}
}
@article{HartungNohBaccichetetal.2009,
  author    = {Hartung, Frank and Noh, Jeonghun and Baccichet, Pierpaolo and Mavlankar, Aditya},
  title     = {Standford Peer-to-Peer Mulicast (SPPM) - Overview and recent Extensions / Noh, Jeonghun ; Baccichet, Pierpaolo ; Hartung, Frank ; Mavlankar, Aditya ; Girod, Bernd},
  isbn      = {978-1-4244-4593-6},
  pages     = {1 -- 4},
  year      = {2009},
  language  = {en}
}
@article{HartungGirod1996,
  author    = {Hartung, Frank and Girod, Bernd},
  title     = {Statistical optimization of switched two-level quantizers with application to DPCM encoding of color video / Hartung, Frank ; Girod, Bernd},
  series = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996},
  journal   = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996},
  isbn      = {0-7803-3192-3},
  pages     = {1974 -- 1977},
  year      = {1996},
  language  = {en}
}
@article{ElsenHartungHornetal.2001,
  author    = {Elsen, Ingo and Hartung, Frank and Horn, Uwe and Kampmann, Markus and Peters, Liliane},
  title     = {Streaming technology in 3G mobile communication systems},
  series = {Computer : innovative technology for computer professionals},
  volume    = {34},
  journal   = {Computer : innovative technology for computer professionals},
  number    = {9 Seiten},
  editor    = {Voas, Jeffrey},
  publisher = {IEEE},
  address   = {New York},
  issn      = {0018-9162},
  pages     = {46 -- 52},
  year      = {2001},
  abstract  = {Third-generation mobile communication systems will combine standardized streaming with a range of unique services to provide high-quality Internet content that meets the specific needs of the rapidly growing mobile market.},
  language  = {en}
}
@article{HartungGirodHorn1995,
  author    = {Hartung, Frank and Girod, Bernd and Horn, Uwe},
  title     = {Subband Image Coding / Girod, Bernd ; Hartung, Frank ; Horn, Uwe},
  series = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu},
  journal   = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu},
  publisher = {Kluwer},
  address   = {Boston},
  isbn      = {0792396456},
  pages     = {213 -- 250},
  year      = {1995},
  language  = {en}
}
@article{WeemstraEilmannSassKlaassenetal.2013,
  author    = {Weemstra, Monique and Eilmann, Britta and Sass-Klaassen, Ute G. W. and Sterck, Frank J.},
  title     = {Summer droughts limit tree growth across 10 temperate species on a productive forest site},
  series = {Forest Ecology and Management},
  volume    = {2013},
  journal   = {Forest Ecology and Management},
  number    = {306},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0378-1127 (Print)},
  doi       = {doi:10.1016/j.foreco.2013.06.007},
  pages     = {142 -- 149},
  year      = {2013},
  language  = {en}
}
@inproceedings{ChudobaButenwegPfeiffer2003,
  author    = {Chudoba, Rostislav and Butenweg, Christoph and Pfeiffer, Frank},
  title     = {Textile reinforced concrete. Part I: Process model for collaborative research and development},
  series = {Digital proceedings / IKM 2003, proceedings 16th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering [Elektronische Ressource : 10. - 12. Juni 2003, Weimar] / Bauhaus-Universit{\"a}t Weimar. Ed.: K. G{\"u}rlebeck; L. Hempel; C. K{\"o}nke},
  booktitle = {Digital proceedings / IKM 2003, proceedings 16th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering [Elektronische Ressource : 10. - 12. Juni 2003, Weimar] / Bauhaus-Universit{\"a}t Weimar. Ed.: K. G{\"u}rlebeck; L. Hempel; C. K{\"o}nke},
  publisher = {IKM},
  address   = {Weimar},
  organization    = {Internationales Kolloquium {\"u}ber Anwendungen der Informatik und Mathematik in Architektur und Bauwesen <16, 2003, Weimar>},
  pages     = {1 -- 8},
  year      = {2003},
  language  = {en}
}
@inproceedings{HoevelerJanser2016,
  author    = {Hoeveler, Bastian and Janser, Frank},
  title     = {The aerodynamically optimized design of a fan-in-wing duct},
  series = {Applied Aerodynamics Research Conference 2016, Bristol, GB, Jul 19-21, 2016},
  booktitle = {Applied Aerodynamics Research Conference 2016, Bristol, GB, Jul 19-21, 2016},
  isbn      = {1-85768-371-4},
  pages     = {1 -- 10},
  year      = {2016},
  language  = {en}
}
@article{MelissSpaete2000,
  author    = {Meliß, Michael and Sp{\"a}te, Frank},
  title     = {The solar heating system with seasonal storage at the Solar-Campus J{\"u}lich},
  series = {Solar energy. Vol. 69 (2000), iss. 6},
  journal   = {Solar energy. Vol. 69 (2000), iss. 6},
  issn      = {0038-092X},
  pages     = {525 -- 533},
  year      = {2000},
  language  = {en}
}
@inproceedings{MelissSpaeteLange1999,
  author    = {Meliß, Michael and Sp{\"a}te, Frank and Lange, Harald},
  title     = {The Solar-Campus J{\"u}lich - an interdisciplinary project},
  series = {Building a new century. 5th Conference on Solar Architecture and Design, Bonn, 27th of May 1998. Ed. by Eurosolar e.V. Ed. by Irm Pontenagel.},
  booktitle = {Building a new century. 5th Conference on Solar Architecture and Design, Bonn, 27th of May 1998. Ed. by Eurosolar e.V. Ed. by Irm Pontenagel.},
  publisher = {Eurosolar-Verl.},
  address   = {Bonn},
  isbn      = {3-933745-03-9},
  pages     = {382 -- 387},
  year      = {1999},
  language  = {en}
}
@article{FerreinDyllaLakemeyeretal.2005,
  author    = {Ferrein, Alexander and Dylla, Frank and Lakemeyer, Gerhard and Murray, Jan},
  title     = {Towards a League-Independent Qualitative Soccer Theory for RoboCup / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; R{\"o}fer, Thomas ; Stolzenburg, Frieder ; Visser, Ubbo},
  series = {RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.).},
  journal   = {RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.).},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-25046-8},
  pages     = {611 -- 618},
  year      = {2005},
  language  = {en}
}
@inproceedings{HuelsenMulsowDabrowskietal.2023,
  author    = {H{\"u}lsen, Benjamin and Mulsow, Niklas A. and Dabrowski, Adam and Brinkmann, Wiebke and G{\"u}tzlaff, Joel and Spies, Leon and Czupalla, Markus and Kirchner, Frank},
  title     = {Towards an autonomous micro rover with night survivability for lunar exploration},
  series = {Proceedings of the 74th International Astronautical Congress},
  booktitle = {Proceedings of the 74th International Astronautical Congress},
  publisher = {dfki},
  pages     = {12 Seiten},
  year      = {2023},
  abstract  = {In Europe, efforts are underway to develop key technologies that can be used to explore the Moon and to exploit the resources available. This includes technologies for in-situ resource utilization (ISRU), facilitating the possibility of a future Moon Village. The Moon is the next step for humans and robots to exploit the use of available resources for longer term missions, but also for further exploration of the solar system. A challenge for effective exploration missions is to achieve a compact and lightweight robot to reduce launch costs and open up the possibility of secondary payload options. Current micro rover concepts are primarily designed to last for one day of solar illumination and show a low level of autonomy. Extending the lifetime of the system by enabling survival of the lunar night and implementing a high level of autonomy will significantly increase potential mission applications and the operational range. As a reference mission, the deployment of a micro rover in the equatorial region of the Moon is being considered. An overview of mission parameters and a detailed example mission sequence is given in this paper. The mission parameters are based on an in-depth study of current space agency roadmaps, scientific goals, and upcoming flight opportunities. Furthermore, concepts of the ongoing international micro rover developments are analyzed along with technology solutions identified for survival of lunar nights and a high system autonomy. The results provide a basis of a concise requirements set-up to allow dedicated system developments and qualification measures in the future.},
  language  = {en}
}
@inproceedings{BensbergAuthCzarneckietal.2018,
  author    = {Bensberg, Frank and Auth, Gunnar and Czarnecki, Christian and W{\"o}rndle, Christopher},
  title     = {Transforming literature-intensive research processes through text analytics - design, implementation and lessons learned},
  editor    = {Kemal İlter, H.},
  doi       = {10.6084/m9.figshare.7582073.v1},
  pages     = {9 Seiten},
  year      = {2018},
  abstract  = {The continuing growth of scientific publications raises the question how research processes can be digitalized and thus realized more productively. Especially in information technology fields, research practice is characterized by a rapidly growing volume of publications. For the search process various information systems exist. However, the analysis of the published content is still a highly manual task. Therefore, we propose a text analytics system that allows a fully digitalized analysis of literature sources. We have realized a prototype by using EBSCO Discovery Service in combination with IBM Watson Explorer and demonstrated the results in real-life research projects. Potential addressees are research institutions, consulting firms, and decision-makers in politics and business practice.},
  language  = {en}
}
@inproceedings{NakagawaKallweitMichauxetal.2016,
  author    = {Nakagawa, Masaki and Kallweit, Stephan and Michaux, Frank and Hojo, Teppei},
  title     = {Typical Velocity Fields and Vortical Structures around a Formula One Car, based on Experimental Investigations using Particle Image Velocimetry},
  series = {SAE International Journal of Passenger Cars - Mechanical Systems},
  booktitle = {SAE International Journal of Passenger Cars - Mechanical Systems},
  issn      = {1946-4002},
  doi       = {10.4271/2016-01-1611},
  pages     = {18 S.},
  year      = {2016},
  language  = {en}
}
@inproceedings{NakagawaMichauxKallweitetal.2015,
  author    = {Nakagawa, Masaki and Michaux, Frank and Kallweit, Stephan and Maeda, Kazuhiro},
  title     = {Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV},
  series = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015},
  booktitle = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015},
  pages     = {21 S.},
  year      = {2015},
  abstract  = {This study investigates unsteady characteristics of the wake behind a 28\%-scale car model in a wind tunnel using highspeed planar particle image velocimetry (PIV). The car model is based on a hatchback passenger car that is known to have relatively high fluctuations in its aerodynamic loads. This study primarily focuses on the lateral motion of the flow on the horizontal plane to determine the effect of the flow motion on the straight-line stability and the initial steering response of the actual car on a track. This paper first compares the flow fields in the wake behind the above mentioned model obtained using conventional and high-speed planar PIV, with sampling frequencies of 8 Hz and 1 kHz, respectively. Large asymmetrically coherent flow structures, which fluctuate at frequencies below 2 Hz, are observed in the results of highspeed PIV measurements, whereas conventional PIV is unable to capture these features of the flow owing to aliasing. This flow pattern with a laterally swaying motion is represented by opposite signs of cross-correlation coefficients of streamwise velocity fluctuations for the two sides of the car model. Effects of two aerodynamic devices that are known to reduce the fluctuation levels of the aerodynamic loads are then extensively investigated. The correlation analyses reveal that these devices indeed reduce the fluctuation levels of the flow and the correlation values around the rear combination-lamp, but it is found that the effects of these devices are different around the c-pillar.},
  language  = {en}
}
@inproceedings{GaldiHartungDugelay2017,
  author    = {Galdi, Chiara and Hartung, Frank and Dugelay, Jean-Luc},
  title     = {Videos versus still images: Asymmetric sensor pattern noise comparison on mobile phones},
  series = {Electronic Imaging},
  booktitle = {Electronic Imaging},
  publisher = {Society for Imaging Science and Technology},
  address   = {Springfield, Virginia},
  issn      = {2470-1173},
  doi       = {10.2352/ISSN.2470-1173.2017.7.MWSF-331},
  pages     = {100 -- 103},
  year      = {2017},
  abstract  = {Nowadays, the most employed devices for recoding videos or capturing images are undoubtedly the smartphones. Our work investigates the application of source camera identification on mobile phones. We present a dataset entirely collected by mobile phones. The dataset contains both still images and videos collected by 67 different smartphones. Part of the images consists in photos of uniform backgrounds, especially collected for the computation of the RSPN. Identifying the source camera given a video is particularly challenging due to the strong video compression. The experiments reported in this paper, show the large variation in performance when testing an highly accurate technique on still images and videos.},
  language  = {en}
}
@article{BartellaKamalScholletal.2019,
  author    = {Bartella, Alexander K. and Kamal, Mohammad and Scholl, Ingrid and Schiffer, Stefan and Steegmann, Julius and Ketelsen, Dominik and H{\"o}lzle, Frank W. and Lethaus, Bernd},
  title     = {Virtual reality in preoperative imaging in maxillofacial surgery: implementation of "the next level"?},
  series = {British Journal of Oral and Maxillofacial Surgery},
  volume    = {57},
  journal   = {British Journal of Oral and Maxillofacial Surgery},
  number    = {7},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0266-4356},
  doi       = {10.1016/j.bjoms.2019.02.014},
  pages     = {644 -- 648},
  year      = {2019},
  language  = {en}
}
@article{HartungHusoy1993,
  author    = {Hartung, Frank and Husoy, J. H.},
  title     = {Wavelet and subband coding of images - A comparative study / Hartung, F. ; Husoy, J. H.},
  series = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed},
  journal   = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {081941283X},
  pages     = {242 -- 253},
  year      = {1993},
  language  = {en}
}
@article{HoevelerBauknechtWolfetal.2020,
  author    = {Hoeveler, B. and Bauknecht, Andr{\´e} and Wolf, C. Christian and Janser, Frank},
  title     = {Wind-Tunnel Study of a Wing-Embedded Lifting Fan Remaining Open in Cruise Flight},
  series = {Journal of Aircraft},
  volume    = {57},
  journal   = {Journal of Aircraft},
  number    = {4},
  publisher = {AIAA},
  address   = {Reston, Va.},
  issn      = {1533-3868},
  doi       = {10.2514/1.C035422},
  year      = {2020},
  abstract  = {It is investigated whether a nonrotating lifting fan remaining uncovered during cruise flight, as opposed to being covered by a shutter system, can be realized with limited additional drag and loss of lift during cruise flight. A wind-tunnel study of a wing-embedded lifting fan has been conducted at the Side Wind Test Facility G{\"o}ttingen of DLR, German Aerospace Center in G{\"o}ttingen using force, pressure, and stereoscopic particle image velocimetry techniques. The study showed that a step on the lower side of the wing in front of the lifting fan duct increases the lift-to-drag ratio of the whole model by up to 25\% for all positive angles of attack. Different sizes and inclinations of the step had limited influence on the surface pressure distribution. The data indicate that these parameters can be optimized to maximize the lift-to-drag ratio. A doubling of the curvature radius of the lifting fan duct inlet lip on the upper side of the wing affected the lift-to-drag ratio by less than 1\%. The lifting fan duct inlet curvature can therefore be optimized to maximize the vertical fan thrust of the rotating lifting fan during hovering without affecting the cruise flight performance with a nonrotating fan.},
  language  = {en}
}
@article{EilmannSterckWegneretal.2014,
  author    = {Eilmann, Britta and Sterck, Frank J. and Wegner, L. and de Vries, Sven M. G. and von Arx, G. and Mohren, Godefridus M. J. and den Ouden, Jan and Sass-Klaassen, Ute G. W.},
  title     = {Wood structural differences between northern and southern beech provenances growing at a moderate site},
  series = {Tree Physiology},
  volume    = {34},
  journal   = {Tree Physiology},
  number    = {8},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {1758-4469 (Online)},
  doi       = {10.1093/treephys/tpu069},
  pages     = {882 -- 893},
  year      = {2014},
  language  = {en}
}