@incollection{Dachwald2010, author = {Dachwald, Bernd}, title = {Solar sail dynamics and control}, series = {Encyclopedia of Aerospace Engineering}, booktitle = {Encyclopedia of Aerospace Engineering}, publisher = {Wiley}, address = {Hoboken}, doi = {10.1002/9780470686652.eae292}, year = {2010}, abstract = {Solar sails are large and lightweight reflective structures that are propelled by solar radiation pressure. This chapter covers their orbital and attitude dynamics and control. First, the advantages and limitations of solar sails are discussed and their history and development status is outlined. Because the dynamics of solar sails is governed by the (thermo-)optical properties of the sail film, the basic solar radiation pressure force models have to be described and compared before parameters to measure solar sail performance can be defined. The next part covers the orbital dynamics of solar sails for heliocentric motion, planetocentric motion, and motion at Lagrangian equilibrium points. Afterwards, some advanced solar radiation pressure force models are described, which allow to quantify the thrust force on solar sails of arbitrary shape, the effects of temperature, of light incidence angle, of surface roughness, and the effects of optical degradation of the sail film in the space environment. The orbital motion of a solar sail is strongly coupled to its rotational motion, so that the attitude control of these soft and flexible structures is very challenging, especially for planetocentric orbits that require fast attitude maneuvers. Finally, some potential attitude control methods are sketched and selection criteria are given.}, language = {en} } @incollection{ZhubanovaMansurovDigel2020, author = {Zhubanova, Azhar A. and Mansurov, Zulkhair A. and Digel, Ilya}, title = {Use of Advanced Nanomaterials for Bioremediation of Contaminated Ecosystems}, series = {Carbon Nanomaterials in Biomedicine and the Environment}, booktitle = {Carbon Nanomaterials in Biomedicine and the Environment}, publisher = {Jenny Stanford Publishing}, address = {Singapore}, isbn = {978-981-4800-27-3}, doi = {10.1201/9780429428647-18}, pages = {353 -- 378}, year = {2020}, abstract = {This chapter shows that nanomaterials obtained by high-temperature carbonization of inexpensive plant raw material such as rice husk, grape seeds, and walnut shells can serve as a basis for the production of highly efficient microbial drugs, biodestructors, biosorbents, and biocatalysts, which are promising for the remediation of the ecosystem contaminated with heavy and radioactive metals, oil and oil products. A strong interest in engineering zymology is dictated by the necessity to address the issues of monitoring enzymatic processes, treatment, and diagnosis of a number of common human diseases, environmental pollution, quality control of pharmaceuticals and food. Nanomaterials obtained by high-temperature carbonization of cheap plant raw material such as-rice husks, grape seeds and walnut shells, can serve as a basis for creating of highly effective microbial preparations-biodestructors, biosorbents and biocatalysts, which are promising for the use of contaminated ecosystems, and for restoration of human intestine microecology.}, language = {en} } @incollection{AkimbekovDigelRazzaque2022, author = {Akimbekov, Nuraly S. and Digel, Ilya and Razzaque, Mohammed S.}, title = {Role of vitamins in maintaining structure and function of intestinal microbiome}, series = {Comprehensive Gut Microbiota}, booktitle = {Comprehensive Gut Microbiota}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-12-822036-8}, doi = {10.1016/B978-0-12-819265-8.00043-7}, pages = {320 -- 334}, year = {2022}, abstract = {The recent advances in microbiology have shed light on understanding the role of vitamins beyond the nutritional range. Vitamins are critical in contributing to healthy biodiversity and maintaining the proper function of gut microbiota. The sharing of vitamins among bacterial populations promotes stability in community composition and diversity; however, this balance becomes disturbed in various pathologies. Here, we overview and analyze the ability of different vitamins to selectively and specifically induce changes in the intestinal microbial community. Some schemes and regularities become visible, which may provide new insights and avenues for therapeutic management and functional optimization of the gut microbiota.}, language = {en} } @incollection{GkatzogiasVeljkovivPohorylesetal.2022, author = {Gkatzogias, Konstantinos and Veljkoviv, Ana and Pohoryles, Daniel A. and Tsionis, Georgios and Bournas, Dionysios A. and Crowley, Helen and Norl{\´e}n, Hedvig and Butenweg, Christoph and Gervasio, Helena and Manfredi, Vincenzo and Masi, Angelo and Zaharieva, Roumiana}, title = {Policy practice and regional impact assessment for building renovation}, series = {REEBUILD Integrated Techniques for the Seismic Strengthening \& Energy Efficiency of Existing Buildings}, booktitle = {REEBUILD Integrated Techniques for the Seismic Strengthening \& Energy Efficiency of Existing Buildings}, editor = {Gkatzogias, Konstantinos and Tsionis, Georgios}, publisher = {Publications Office of the European Union}, address = {Luxembourg}, isbn = {978-92-76-60454-9}, issn = {1831-9424}, doi = {10.2760/883122}, pages = {1 -- 68}, year = {2022}, abstract = {The work presented in this report provides scientific support to building renovation policies in the EU by promoting a holistic point of view on the topic. Integrated renovation can be seen as a nexus between European policies on disaster resilience, energy efficiency and circularity in the building sector. An overview of policy measures for the seismic and energy upgrading of buildings across EU Member States identified only a few available measures for combined upgrading. Regulatory framework, financial instruments and digital tools similar to those for energy renovation, together with awareness and training may promote integrated renovation. A framework for regional prioritisation of building renovation was put forward, considering seismic risk, energy efficiency, and socioeconomic vulnerability independently and in an integrated way. Results indicate that prioritisation of building renovation is a multidimensional problem. Depending on priorities, different integrated indicators should be used to inform policies and accomplish the highest relative or most spread impact across different sectors. The framework was further extended to assess the impact of renovation scenarios across the EU with a focus on priority regions. Integrated renovation can provide a risk-proofed, sustainable, and inclusive built environment, presenting an economic benefit in the order of magnitude of the highest benefit among the separate interventions. Furthermore, it presents the unique capability of reducing fatalities and energy consumption at the same time and, depending on the scenario, to a greater extent.}, language = {en} } @article{StadlerGarveyBocahutetal.2012, author = {Stadler, Andreas M. and Garvey, G. J. and Bocahut, A. and Sacquin-Mora, S. and Digel, Ilya and Schneider, G. J. and Natali, F. and Artmann, Gerhard and Zaccai, G.}, title = {Thermal fluctuations of haemoglobin from different species : adaptation to temperature via conformational dynamics}, series = {Journal of the Royal Society Interface}, volume = {9}, journal = {Journal of the Royal Society Interface}, number = {76}, publisher = {The Royal Society}, address = {London}, issn = {1742-5689}, doi = {10.1098/rsif.2012.0364}, pages = {2845 -- 2855}, year = {2012}, abstract = {Thermodynamic stability, configurational motions and internal forces of haemoglobin (Hb) of three endotherms (platypus, Ornithorhynchus anatinus; domestic chicken, Gallus gallus domesticus and human, Homo sapiens) and an ectotherm (salt water crocodile, Crocodylus porosus) were investigated using circular dichroism, incoherent elastic neutron scattering and coarse-grained Brownian dynamics simulations. The experimental results from Hb solutions revealed a direct correlation between protein resilience, melting temperature and average body temperature of the different species on the 0.1 ns time scale. Molecular forces appeared to be adapted to permit conformational fluctuations with a root mean square displacement close to 1.2 {\AA} at the corresponding average body temperature of the endotherms. Strong forces within crocodile Hb maintain the amplitudes of motion within a narrow limit over the entire temperature range in which the animal lives. In fully hydrated powder samples of human and chicken, Hb mean square displacements and effective force constants on the 1 ns time scale showed no differences over the whole temperature range from 10 to 300 K, in contrast to the solution case. A complementary result of the study, therefore, is that one hydration layer is not sufficient to activate all conformational fluctuations of Hb in the pico- to nanosecond time scale which might be relevant for biological function. Coarse-grained Brownian dynamics simulations permitted to explore residue-specific effects. They indicated that temperature sensing of human and chicken Hb occurs mainly at residues lining internal cavities in the β-subunits.}, language = {en} } @incollection{WeberBomholtButenweg2022, author = {Weber, Felix and Bomholt, Frederik and Butenweg, Christoph}, title = {Erdbeben- und Schwingungsschutz von Bauwerken}, series = {2023 BetonKalender: Wasserundurchl{\"a}ssiger Beton, Br{\"u}ckenbau}, booktitle = {2023 BetonKalender: Wasserundurchl{\"a}ssiger Beton, Br{\"u}ckenbau}, editor = {Bergmeister, Konrad and Fingerloos, Frank and W{\"o}rner, Johann-Dietrich}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {9783433611180}, doi = {10.1002/9783433611180.ch16}, pages = {779 -- 859}, year = {2022}, abstract = {Dieser Beitrag beschreibt die herk{\"o}mmlichen Maßnahmen wie die Kapazit{\"a}tsbemessung der Tragwerksstruktur, die Isolation des Bauwerks mittels Basisisolatoren, die D{\"a}mpfungserh{\"o}hung der Struktur mittels Inter-Story-D{\"a}mpfern und die Schwingungsreduktion mittels Schwingungstilgern gegen Einwirkungen durch Erdbeben, Wind, Verkehr und Personen auf die Bauwerke. Erg{\"a}nzend wird die erdbebengerechte Auslegung und Isolation von nichttragenden Bauteilen behandelt. F{\"u}r die betrachteten Systeme werden die Bewegungsdifferenzialgleichungen unter Ber{\"u}cksichtigung der wesentlichen Nichtlinearit{\"a}ten angegeben. Die vorgestellten Weiterentwicklungen in den Bereichen der Basisisolatoren, D{\"a}mpfern und Schwingungstilgern zeigen, dass das modellbasierte Design mittels Simulation ein sehr effektives, {\"o}konomisches und dank der heutigen Computerleistung auch zeiteffizientes Werkzeug darstellt.}, language = {de} } @article{RossiHoltschoppenButenweg2019, author = {Rossi, Leonardo and Holtschoppen, Britta and Butenweg, Christoph}, title = {Official data on the economic consequences of the 2012 Emilia-Romagna earthquake: a first analysis of database SFINGE}, series = {Bulletin of Earthquake Engineering}, volume = {17}, journal = {Bulletin of Earthquake Engineering}, number = {9}, publisher = {Springer}, address = {Berlin}, doi = {10.1007\%2Fs10518-019-00655-8}, pages = {4855 -- 4884}, year = {2019}, language = {en} } @inproceedings{DachwaldWurm2009, author = {Dachwald, Bernd and Wurm, P.}, title = {Mission analysis for an advanced solar photon thruster}, series = {60th International Astronautical Congress 2009, IAC 2009}, volume = {8}, booktitle = {60th International Astronautical Congress 2009, IAC 2009}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-161567908-9}, pages = {6838 -- 6851}, year = {2009}, abstract = {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.}, language = {en} } @inproceedings{ThomaFisherBraun2020, author = {Thoma, Andreas and Fisher, Alex and Braun, Carsten}, title = {Improving the px4 avoid algorithm by bio-inspired flight strategies}, series = {DLRK2020 - „Luft- und Raumfahrt - Verantwortung in allen Dimensionen"}, booktitle = {DLRK2020 - „Luft- und Raumfahrt - Verantwortung in allen Dimensionen"}, doi = {10.25967/530183}, pages = {10 Seiten}, year = {2020}, language = {en} } @article{Dachwald2005, author = {Dachwald, Bernd}, title = {Optimal Solar Sail Trajectories for Missions to the Outer Solar System}, series = {Journal of guidance, control, and dynamics. 28 (2005), H. 6}, journal = {Journal of guidance, control, and dynamics. 28 (2005), H. 6}, isbn = {0162-3192}, pages = {1187 -- 1193}, year = {2005}, language = {en} } @book{Wolf2002, author = {Wolf, Martin R.}, title = {Entwicklung und Evaluation eines Groupware-Systems zur Unterst{\"u}tzung verfahrenstechnischer Entwicklungsprozesse}, publisher = {Shaker}, address = {Aachen}, isbn = {3-8322-0629-9}, pages = {X, 250 S. : graph. Darst.}, year = {2002}, language = {de} } @article{Dachwald2005, author = {Dachwald, Bernd}, title = {Optimization of very-low-thrust trajectories using evolutionary neurocontrol}, series = {Acta Astronautica. 57 (2005), H. 2-8}, journal = {Acta Astronautica. 57 (2005), H. 2-8}, isbn = {0094-5765}, pages = {175 -- 185}, year = {2005}, language = {en} } @article{DachwaldSeboldt2008, author = {Dachwald, Bernd and Seboldt, Wolfgang}, title = {Solar Sails — Propellantless Propulsion for Near- and Medium-Term Deep-Space Missions / W. Seboldt ; B. Dachwald}, series = {Advanced Propulsion Systems and Technologies, Today to 2020 / Claudio Bruno (ed.) ... - (Progress in Astronautics and Aeronautics Series ; 223)}, journal = {Advanced Propulsion Systems and Technologies, Today to 2020 / Claudio Bruno (ed.) ... - (Progress in Astronautics and Aeronautics Series ; 223)}, publisher = {AIAA}, address = {Reston, Va.}, isbn = {978-1-56347-929-8}, pages = {460 S.}, year = {2008}, language = {en} } @article{SavitskayaKistaubayevaDigeletal.2017, author = {Savitskaya, I. S. and Kistaubayeva, A. S. and Digel, Ilya and Shokatayeva, D. H.}, title = {Physicochemical and Antibacterial Properties of Composite Films Based on Bacterial Cellulose and Chitosan for Wound Dressing Materials}, series = {Eurasian Chemico-Technological Journal}, volume = {19}, journal = {Eurasian Chemico-Technological Journal}, number = {3}, issn = {2522-4867}, doi = {10.18321/ectj670}, pages = {255 -- 264}, year = {2017}, language = {en} } @inproceedings{BeckerBergenerDelfmannetal.2011, author = {Becker, J{\"o}rg and Bergener, Philipp and Delfmann, Patrick and Eggert, Mathias and Weiss, Burkhard}, title = {Supporting Business Process Compliance in Financial Institutions - A Model-Driven Approach}, series = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland}, booktitle = {Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland}, pages = {355 -- 364}, year = {2011}, language = {en} } @techreport{HaegerBongaertsSiegert2023, author = {Haeger, Gerrit and Bongaerts, Johannes and Siegert, Petra}, title = {Abschlussbericht Teil II: Eingehende Darstellung Neue biobasierte Lipopeptide aus nachhaltiger Produktion (LipoPep)}, pages = {17Seiten}, year = {2023}, language = {de} } @article{MolinnusMuschallikGonzalezetal.2018, author = {Molinnus, Denise and Muschallik, Lukas and Gonzalez, Laura Osorio and Bongaerts, Johannes and Wagner, Torsten and Selmer, Thorsten and Siegert, Petra and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Development and characterization of a field-effect biosensor for the detection of acetoin}, series = {Biosensors and Bioelectronics}, volume = {115}, journal = {Biosensors and Bioelectronics}, publisher = {Elsevier}, address = {Amsterdam}, doi = {10.1016/j.bios.2018.05.023}, pages = {1 -- 6}, year = {2018}, abstract = {A capacitive electrolyte-insulator-semiconductor (EIS) field-effect biosensor for acetoin detection has been presented for the first time. The EIS sensor consists of a layer structure of Al/p-Si/SiO₂/Ta₂O₅/enzyme acetoin reductase. The enzyme, also referred to as butane-2,3-diol dehydrogenase from B. clausii DSM 8716T, has been recently characterized. The enzyme catalyzes the (R)-specific reduction of racemic acetoin to (R,R)- and meso-butane-2,3-diol, respectively. Two different enzyme immobilization strategies (cross-linking by using glutaraldehyde and adsorption) have been studied. Typical biosensor parameters such as optimal pH working range, sensitivity, hysteresis, linear concentration range and long-term stability have been examined by means of constant-capacitance (ConCap) mode measurements. Furthermore, preliminary experiments have been successfully carried out for the detection of acetoin in diluted white wine samples.}, language = {en} } @inproceedings{EggertKriska2022, author = {Eggert, Mathias and Kriska, Melina}, title = {Gamification for software development processes - relevant affordances and design principles}, series = {Proceedings of the 55th Hawaii International Conference on System Sciences}, booktitle = {Proceedings of the 55th Hawaii International Conference on System Sciences}, publisher = {HICSS Publishing}, address = {Honolulu}, isbn = {978-0-9981331-5-7}, doi = {10.24251/HICSS.2022.200}, pages = {1614 -- 1623}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{KoenigWolf2016, author = {K{\"o}nig, Johannes Alexander and Wolf, Martin R.}, title = {A new definition of competence developing games - and a framework to assess them}, series = {ACHI 2016 : The Ninth International Conference on Advances in Computer-Human Interactions}, booktitle = {ACHI 2016 : The Ninth International Conference on Advances in Computer-Human Interactions}, isbn = {978-1-61208-468-8}, pages = {95 -- 97}, year = {2016}, abstract = {There are different types of games that try to make use of the motivation of a gaming situation in learning contexts. This paper introduces the new terminology 'Competence Developing Game' (CDG) as an umbrella term for all games with this intention. Based on this new terminology, an assessment framework has been developed and validated in scope of an empirical study. Now, all different types of CDGs can be evaluated according to a defined and uniform set of assessment criteria and, thus, are comparable according to their characteristics and effectiveness.}, language = {en} } @techreport{LanzFrickeAnthrakidisetal.2010, author = {Lanz, Marco and Fricke, Barbara and Anthrakidis, Anette and Genter, Mirjam and Hoffschmidt, Bernhard and Faber, Christian and Hauser, Eva and Klann, Uwe and Leprich, Uwe and Bauknecht, Dierk and Koch, Matthias and Peter, Stefan}, title = {CO2-Emissionsminderung durch Ausbau, informationstechnische Vernetzung und Netzoptimierung von Anlagen dezentraler, fluktuierender und erneuerbarer Energieerzeugung in Deutschland : Endbericht zum Vorhaben ; Kurzbezeichnung: CO2DEZ. Forschungsbericht / Umweltbundesamt. Bd. 1550. F{\"o}rderkennzeichen: UFOPLAN 3707 46 100}, pages = {238 S. graph. Darst., Kt.}, year = {2010}, language = {de} } @inproceedings{KoenigVoelkerWolf2018, author = {K{\"o}nig, Johannes Alexander and V{\"o}lker, Veronika and Wolf, Martin R.}, title = {The user-focused storybuilding framework for competence developing games - a design-framework considering the basics of an educational game's story}, series = {ACHI 2018 : The Eleventh International Conference on Advances in Computer-Human Interactions}, booktitle = {ACHI 2018 : The Eleventh International Conference on Advances in Computer-Human Interactions}, isbn = {978-1-61208-616-3}, pages = {98 -- 106}, year = {2018}, abstract = {During the development of a Competence Developing Game's (CDG) story it is indispensable to understand the target audience. Thereby, CDGs stories represent more than just the plot. The Story is about the Setting, the Characters and the Plot. As a toolkit to support the development of such a story, this paper introduces the UserFocused Storybuilding (short UFoS) Framework for CDGs. The Framework and its utilization will be explained, followed by a description of its development and derivation, including an empirical study. In addition, to simplify the Framework use regarding the CDG's target audience, a new concept of Nine Psychographic Player Types will be explained. This concept of Player Types provides an approach to handle the differences in between players during the UFoS Framework use. Thereby, this article presents a unique approach to the development of target group-differentiated CDGs stories.}, language = {en} } @inproceedings{EggertStanke2020, author = {Eggert, Mathias and Stanke, Max-Alexander}, title = {Adoption of Integrated Voice Assistants in Health Care- Requirements and Design Guidelines}, publisher = {GITO}, address = {Berlin}, doi = {10.30844/wi_2020_k2-eggert}, pages = {16 Seiten}, year = {2020}, abstract = {Integrated voice assistants (IVA) receive more and more attention and are widespread for entertainment use cases, such as radio hearing or web searches. At the same time, the health care segment suffers in process inefficiency and missing staff, whereas the usage of IVA has the potential to improve caring processes and patient satisfaction. By applying a design science approach and based on a qualitative study, we identify IVA requirements, barriers and design guidelines for the health care sector. The results reveal three important IVA functions: the ability to set appointments with care service staff, the documentation of health history and the communication with service staff. Integration, system stability and volume control are the most important nonfunctional requirements. Based on the interview results and project experiences, six design and implementation guidelines are derived.}, language = {en} } @inproceedings{WolfKoenig2017, author = {Wolf, Martin R. and K{\"o}nig, Johannes Alexander}, title = {Competence Developing Games - Ein {\"U}berblick}, series = {INFORMATIK 2017, Lecture Notes in Informatics (LNI), Gesellschaft f{\"u}r Informatik}, booktitle = {INFORMATIK 2017, Lecture Notes in Informatics (LNI), Gesellschaft f{\"u}r Informatik}, editor = {Eibl, Maximilian and Gaedke, Martin}, organization = {Gesellschaft f{\"u}r Informatik}, isbn = {978-3-88579-669-5}, doi = {10.18420/in2017_32}, pages = {385 -- 391}, year = {2017}, abstract = {Es existieren verschiedenste Arten von Spielen, die versuchen, die Motivation einer Spielsituation in einen ernsten Kontext zu {\"u}berf{\"u}hren. In diesem Artikel wird der {\"U}berbegriff „Competence Developing Games" definiert und anhand von Beispielen erl{\"a}utert. Daf{\"u}r werden Erkennungskriterien vorgestellt, entsprechende Spieltypen erl{\"a}utert und eine Zuordnung durch-gef{\"u}hrt.}, language = {de} } @article{DachwaldOhndorf2007, author = {Dachwald, Bernd and Ohndorf, A.}, title = {1st ACT Global Trajectory Optimisation Competition : Results found at DLR}, series = {Acta Astronautica. 61 (2007), H. 9}, journal = {Acta Astronautica. 61 (2007), H. 9}, isbn = {0094-5765}, pages = {742 -- 752}, year = {2007}, language = {en} } @article{GoettenHavermannBraunetal.2020, author = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Marino, Matthew and Bil, Cees}, title = {Wind-tunnel and CFD investigations of UAV landing gears and turrets - Improvements in empirical drag estimation}, series = {Aerospace Science and Technology}, volume = {107}, journal = {Aerospace Science and Technology}, number = {Art. 106306}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1270-9638}, doi = {10.1016/j.ast.2020.106306}, year = {2020}, abstract = {This paper analyzes the drag characteristics of several landing gear and turret configurations that are representative of unmanned aircraft tricycle landing gears and sensor turrets. A variety of these components were constructed via 3D-printing and analyzed in a wind-tunnel measurement campaign. Both turrets and landing gears were attached to a modular fuselage that supported both isolated components and multiple components at a time. Selected cases were numerically investigated with a Reynolds-averaged Navier-Stokes approach that showed good accuracy when compared to wind-tunnel data. The drag of main gear struts could be significantly reduced via streamlining their cross-sectional shape and keeping load carrying capabilities similar. The attachment of wheels introduced interference effects that increased strut drag moderately but significantly increased wheel drag compared to isolated cases. Very similar behavior was identified for front landing gears. The drag of an electro-optical and infrared sensor turret was found to be much higher than compared to available data of a clean hemisphere-cylinder combination. This turret drag was merely influenced by geometrical features like sensor surfaces and the rotational mechanism. The new data of this study is used to develop simple drag estimation recommendations for main and front landing gear struts and wheels as well as sensor turrets. These recommendations take geometrical considerations and interference effects into account.}, language = {en} } @inproceedings{PeloniCeriottiDachwald2015, author = {Peloni, Alessandro and Ceriotti, Matteo and Dachwald, Bernd}, title = {Solar-Sailing Trajectory Design for Close-up NEA Observations Mission}, series = {4th IAA Planetary Defense Conference - PDC 2015, 13-17 April 2015, Frascati, Roma, Italy}, booktitle = {4th IAA Planetary Defense Conference - PDC 2015, 13-17 April 2015, Frascati, Roma, Italy}, pages = {21 S.}, year = {2015}, language = {de} } @book{LabischWaehlisch2017, author = {Labisch, Susanna and W{\"a}hlisch, Georg}, title = {Technisches Zeichnen: Eigenst{\"a}ndig lernen und effektiv {\"u}ben}, edition = {5. {\"u}berarbeitete Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-18312-7}, doi = {10.1007/978-3-658-18313-4}, pages = {XI, 300 Seiten ; Illustrationen}, year = {2017}, language = {de} } @book{LabischWaehlisch2020, author = {Labisch, Susanna and W{\"a}hlisch, Georg}, title = {Technisches Zeichnen: Eigenst{\"a}ndig lernen und effektiv {\"u}ben}, edition = {6th ed.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-30650-2 (E-Book)}, doi = {10.1007/978-3-658-30650-2}, pages = {Online-Ressource (XI, 296 S. 300 Abb., 81 Abb. in Farbe)}, year = {2020}, language = {de} } @inproceedings{PeloniCeriottiDachwald2015, author = {Peloni, A. and Ceriotti, M. and Dachwald, Bernd}, title = {Preliminary trajectory design of a multiple NEO rendezvous mission through solar sailing}, series = {Proceedings of the International Astronautical Congress, IAC, Vol. 8, 2014}, booktitle = {Proceedings of the International Astronautical Congress, IAC, Vol. 8, 2014}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-63439-986-9}, pages = {5352 -- 5366}, year = {2015}, language = {en} } @article{Wolf2000, author = {Wolf, Martin R.}, title = {Groupware related task design}, series = {ACM SIGGROUP Bulletin. 21 (2000), H. 2}, journal = {ACM SIGGROUP Bulletin. 21 (2000), H. 2}, publisher = {-}, pages = {5 -- 8}, year = {2000}, language = {en} } @inproceedings{KapoorBraunBoller2010, author = {Kapoor, Hrshi and Braun, Carsten and Boller, Christian}, title = {Modelling and optimisation of maintenance intervals to realize structural health monitoring applications on aircraft}, series = {Structural health monitoring 2010 : proceedings of the Fifth European Workshop on Structural Health Monitoring held at Sorrento, Naples, Italy, June 28 - July 4, 2010 ; [EWSHM]}, booktitle = {Structural health monitoring 2010 : proceedings of the Fifth European Workshop on Structural Health Monitoring held at Sorrento, Naples, Italy, June 28 - July 4, 2010 ; [EWSHM]}, editor = {Casciati, Fabio}, publisher = {DEStech Publ.}, address = {Lancaster, Pa.}, isbn = {978-1-60595-024-2}, pages = {55 -- 63}, year = {2010}, language = {en} } @article{Ferrein2010, author = {Ferrein, Alexander}, title = {golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems}, pages = {20 -- 28}, year = {2010}, language = {en} } @article{Ferrein2010, author = {Ferrein, Alexander}, title = {golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems}, series = {Cognitive Robotics / Lakemeyer, Gerhard (ed.)}, journal = {Cognitive Robotics / Lakemeyer, Gerhard (ed.)}, pages = {1 -- 15}, year = {2010}, language = {en} } @techreport{DigelKayser2017, author = {Digel, Ilya and Kayser, Peter}, title = {VirEx - Eliminierung von Quarant{\"a}ne relevanten Viroiden aus Kulturpflanzen Abschlussbericht des Projektes KMU-innovativ-12: Teilprojekt 3}, publisher = {Institut f{\"u}r Bioengineering (IfB) der FH Aachen}, address = {Aachen}, doi = {10.2314/GBV:1012136345}, year = {2017}, language = {de} } @article{Wolf2003, author = {Wolf, Martin R.}, title = {Risiko- und Maßnahmenmanagement bei der Computervalidierung}, series = {Pharma-Technologie-Journal (2003)}, journal = {Pharma-Technologie-Journal (2003)}, publisher = {-}, isbn = {0931-9700}, pages = {50 -- 62}, year = {2003}, language = {de} } @inproceedings{GrundmannBauerBieleetal.2018, author = {Grundmann, Jan Thimo and Bauer, Waldemar and Biele, Jens and Boden, Ralf and Ceriotti, Matteo and Cordero, Federico and Dachwald, Bernd and Dumont, Etienne and Grimm, Christian D. and Herč{\´i}k, David and Ho, Tra-Mi and Jahnke, Rico and Koch, Aaron D and Koncz, Alexander and Krause, Christian and Lange, Caroline and Lichtenheldt, Roy and Maiwald, Volker and Mikschl, Tobias and Mikulz, Eugen and Montenegro, Sergio and Pelivan, Ivanka and Peloni, Alessandro and Quantius, Dominik and Reershemius, Siebo and Renger, Thomas and Riemann, Johannes and Ruffer, Michael and Sasaki, Kaname and Schmitz, Nicole and Seboldt, Wolfgang and Seefeldt, Patric and Spietz, Peter and Spr{\"o}witz, Tom and Sznajder, Maciej and Tardivel, Simon and T{\´o}th, Norbert and Wejmo, Elisabet and Wolff, Friederike and Ziach, Christian}, title = {Small spacecraft based multiple near-earth asteroid rendezvous and landing with near-term solar sails and 'Now-Term 'technologies}, series = {69 th International Astronautical Congress (IAC)}, booktitle = {69 th International Astronautical Congress (IAC)}, pages = {1 -- 18}, year = {2018}, abstract = {Physical interaction with small solar system bodies (SSSB) is the next step in planetary science, planetary in-situ resource utilization (ISRU), and planetary defense (PD). It requires a broader understanding of the surface properties of the target objects, with particular interest focused on those near Earth. Knowledge of composition, multi-scale surface structure, thermal response, and interior structure is required to design, validate and operate missions addressing these three fields. The current level of understanding is occasionally simplified into the phrase, "If you've seen one asteroid, you've seen one asteroid", meaning that the in-situ characterization of SSSBs has yet to cross the threshold towards a robust and stable scheme of classification. This would enable generic features in spacecraft design, particularly for ISRU and science missions. Currently, it is necessary to characterize any potential target object sufficiently by a dedicated pre-cursor mission to design the mission which then interacts with the object in a complex fashion. To open up strategic approaches, much broader in-depth characterization of potential target objects would be highly desirable. In SSSB science missions, MASCOT-like nano-landers and instrument carriers which integrate at the instrument level to their mothership have met interest. By its size, MASCOT is compatible with small interplanetary missions. The DLR-ESTEC Gossamer Roadmap Science Working Groups' studies identified Multiple Near-Earth asteroid (NEA) Rendezvous (MNR) as one of the space science missions only feasible with solar sail propulsion. The Solar Polar Orbiter (SPO) study showed the ability to access any inclination, theDisplaced-L1 (DL1) mission operates close to Earth, where objects of interest to PD and for ISRU reside. Other studies outline the unique capability of solar sails to provide access to all SSSB, at least within the orbit of Jupiter, and significant progress has been made to explore the performance envelope of near-term solar sails for MNR. However, it is difficult for sailcraft to interact physically with a SSSB. We expand and extend the philosophy of the recently qualified DLR Gossamer solar sail deployment technology using efficient multiple sub-spacecraft integration to also include landers for one-way in-situ investigations and sample-return missions by synergetic integration and operation of sail and lander. The MASCOT design concept and its characteristic features have created an ideal counterpart for thisand has already been adapted to the needs of the AIM spacecraft, former part of the NASA-ESA AIDA missionDesigning the 69th International Astronautical Congress (IAC), Bremen, Germany, 1-5 October 2018. IAC-18-F1.2.3 Page 2 of 17 combined spacecraft for piggy-back launch accommodation enables low-cost massively parallel access to the NEA population.}, language = {en} } @article{HeinEubanksLingametal.2022, author = {Hein, Andreas M. and Eubanks, T. Marshall and Lingam, Manasvi and Hibberd, Adam and Fries, Dan and Schneider, Jean and Kervella, Pierre and Kennedy, Robert and Perakis, Nikolaos and Dachwald, Bernd}, title = {Interstellar now! Missions to explore nearby interstellar objects}, series = {Advances in Space Research}, volume = {69}, journal = {Advances in Space Research}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0273-1177}, doi = {10.1016/j.asr.2021.06.052}, pages = {402 -- 414}, year = {2022}, abstract = {The recently discovered first hyperbolic objects passing through the Solar System, 1I/'Oumuamua and 2I/Borisov, have raised the question about near term missions to Interstellar Objects. In situ spacecraft exploration of these objects will allow the direct determination of both their structure and their chemical and isotopic composition, enabling an entirely new way of studying small bodies from outside our solar system. In this paper, we map various Interstellar Object classes to mission types, demonstrating that missions to a range of Interstellar Object classes are feasible, using existing or near-term technology. We describe flyby, rendezvous and sample return missions to interstellar objects, showing various ways to explore these bodies characterizing their surface, dynamics, structure and composition. Their direct exploration will constrain their formation and history, situating them within the dynamical and chemical evolution of the Galaxy. These mission types also provide the opportunity to explore solar system bodies and perform measurements in the far outer solar system.}, language = {en} } @inproceedings{RosinKubalskiButenweg2013, author = {Rosin, Julia and Kubalski, Thomas and Butenweg, Christoph}, title = {Seismic isolation of cylindrical liquid storage tanks}, series = {Seismic design of industrial facilities}, booktitle = {Seismic design of industrial facilities}, editor = {Klinkel, Sven and Butenweg, Christoph and Lin, Gao and Holtschoppen, Britta}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02810-7}, doi = {10.1007/978-3-658-02810-7_36}, pages = {429 -- 440}, year = {2013}, abstract = {Seismic excited liquid filled tanks are subjected to extreme loading due to hydrodynamic pressures, which can lead to nonlinear stability failure of the thinwalled cylindrical tanks, as it is known from past earthquakes. A significant reduction of the seismically induced loads can be obtained by the application of base isolation systems, which have to be designed carefully with respect to the modified hydrodynamic behaviour of the tank in interaction with the liquid. For this reason a highly sophisticated fluid-structure interaction model has to be applied for a realistic simulation of the overall dynamic system. In the following, such a model is presented and compared with the results of simplified mathematical models for rigidly supported tanks. Finally, it is examined to what extent a simple mechanical model can represent the behaviour of a base isolated tank in case of seismic excitation}, language = {en} } @article{DachwaldBallUlamecetal.2009, author = {Dachwald, Bernd and Ball, Andrew J. and Ulamec, Stephan and Price, Michael E.}, title = {A small mission for in situ exploration of a primitive binary near-Earth asteroid / Ball, Andrew J. ; Ulamec, Stephan ; Dachwald, Bernd ; Price, Michael E. ; [u.a.]}, series = {Advances in Space Research. 43 (2009), H. 2}, journal = {Advances in Space Research. 43 (2009), H. 2}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {0273-1177}, pages = {317 -- 324}, year = {2009}, language = {en} } @article{AlexopoulosHoffschmidt2010, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard}, title = {Solarthermische Kraftwerke mit thermischen Speichern}, series = {Chemie Ingenieur Technik. 82 (2010), H. 9}, journal = {Chemie Ingenieur Technik. 82 (2010), H. 9}, isbn = {1522-2640}, pages = {1606 -- 1606}, year = {2010}, language = {de} } @inproceedings{KobGoemmelButenwegetal.2006, author = {Kob, Malte and G{\"o}mmel, Andreas and Butenweg, Christoph and Niendorf, Thoralf}, title = {Training of a combined model of larynx and vocal folds with data from MRI measurements}, series = {The 5th International Conference on Voice Physiology and Biomechanics: Variations across Cultures and Species, July 12-14, 2006, Tokyo, Japan. Proceedings}, booktitle = {The 5th International Conference on Voice Physiology and Biomechanics: Variations across Cultures and Species, July 12-14, 2006, Tokyo, Japan. Proceedings}, organization = {International Conference on Voice Physiology and Biomechanics <5, 2006, Tokyo>}, pages = {45 -- 46}, year = {2006}, language = {en} } @inproceedings{RosinKubalskiButenweg2013, author = {Rosin, Julia and Kubalski, Thomas and Butenweg, Christoph}, title = {Modellierung eines basisisolierten, zylindrischen Fl{\"u}ssigkeitstanks aus Stahl}, series = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, booktitle = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, organization = {D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik <13, 2013, Wien>}, pages = {1 -- 10}, year = {2013}, language = {de} } @article{HoltschoppenButenwegMeskouris2009, author = {Holtschoppen, B. and Butenweg, Christoph and Meskouris, Konstantin}, title = {Erdbebensichere Auslegung von Industrieanlagen}, series = {Der Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, journal = {Der Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, number = {M{\"a}rz}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {0005-6650}, pages = {S9 -- S14}, year = {2009}, language = {de} } @inproceedings{Anthrakidis2010, author = {Anthrakidis, Anette}, title = {Solare-Prozessw{\"a}rme-Standards (Sol-Pro-St)}, series = {Thermische Solarenergie : 20. Symposium ; 05. bis 07. Mai 2010, Kloster Banz, Bad Staffelstein}, booktitle = {Thermische Solarenergie : 20. Symposium ; 05. bis 07. Mai 2010, Kloster Banz, Bad Staffelstein}, publisher = {OTTI}, address = {Regensburg}, isbn = {978-3-941785-29-8}, pages = {182 -- 187}, year = {2010}, language = {de} } @inproceedings{ButenwegKleemannAltay2013, author = {Butenweg, Christoph and Kleemann, Anne and Altay, Okyay}, title = {Simulation von Impact Belastungen auf Stahlbetonstrukturen}, series = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, booktitle = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, organization = {D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik <13, 2013, Wien>}, pages = {1 -- 9}, year = {2013}, language = {de} } @article{AkimbekovDigelZhubanova2013, author = {Akimbekov, Nuraly S. and Digel, Ilya and Zhubanova, A. A.}, title = {Investigation the Influence of Carbonized Material Based On Rice Husk on Viability and Migration of Fibroblasts in T3B3 Cell Culture}, series = {KazNU Bulletin. Biology series}, volume = {59}, journal = {KazNU Bulletin. Biology series}, number = {3/1}, issn = {1563-0218}, pages = {20 -- 23}, year = {2013}, language = {en} } @inproceedings{WagnerNohButenwegetal.2002, author = {Wagner, R. and Noh, S.-Y. and Butenweg, Christoph and Meskouris, Konstantin}, title = {Seismic excited granular material silos}, series = {Structural dynamics - EURODYN 2002 : proceedings of the 4th [i.e. 5th] International Conference on Structural Dynamics, Munich, Germany, 2 - 5 September 2002 / ed. by H. Grundmann ...}, booktitle = {Structural dynamics - EURODYN 2002 : proceedings of the 4th [i.e. 5th] International Conference on Structural Dynamics, Munich, Germany, 2 - 5 September 2002 / ed. by H. Grundmann ...}, publisher = {Balkema}, address = {Lisse}, organization = {European Conference on Structural Dynamics, EURODYN <5, 2002, M{\"u}nchen>}, isbn = {90-5809-511-8}, pages = {253 -- 258}, year = {2002}, language = {en} } @article{Butenweg2010, author = {Butenweg, Christoph}, title = {Bewertung der Erdbebensicherheit von bestehenden Bauwerken}, series = {{\"O}sterreichische Ingenieur- und Architekten-Zeitschrift : {\"O}IAZ ; Zeitschr. d. {\"O}IAV / {\"O}sterreichischer Ingenieur- und Architekten-Verein}, volume = {155}, journal = {{\"O}sterreichische Ingenieur- und Architekten-Zeitschrift : {\"O}IAZ ; Zeitschr. d. {\"O}IAV / {\"O}sterreichischer Ingenieur- und Architekten-Verein}, number = {1-3 und 4-6}, publisher = {{\"O}AIV}, address = {Wien}, issn = {0721-9415}, pages = {11 -- 17}, year = {2010}, language = {de} } @inproceedings{MeskourisHoltschoppenButenwegetal.2011, author = {Meskouris, Konstantin and Holtschoppen, Britta and Butenweg, Christoph and Rosin, Julia}, title = {Seismic analysis of liquid storage tanks}, series = {Earthquake Geology and Archaeology: Science, Society and Critical facilities : proceedings ; 2nd INQUA-IGCP 567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering ; 19-24 September 2011, Corinth (Greece) / Eds.: C. Gr{\"u}tzner ; R. P{\´e}rez-Lopez ; T. Fern{\´a}ndez Steeger ; I. Papanikolaou ; K. Reicherter ; P. G. Silva ; A. V{\"o}tt. Volume 2}, booktitle = {Earthquake Geology and Archaeology: Science, Society and Critical facilities : proceedings ; 2nd INQUA-IGCP 567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering ; 19-24 September 2011, Corinth (Greece) / Eds.: C. Gr{\"u}tzner ; R. P{\´e}rez-Lopez ; T. Fern{\´a}ndez Steeger ; I. Papanikolaou ; K. Reicherter ; P. G. Silva ; A. V{\"o}tt. Volume 2}, publisher = {The Natural hazards Laboratory, National and Kapodistrian University of Athens}, address = {Athens}, organization = {International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering <2, 2011, Corinth>}, isbn = {978-960-466-093-3}, pages = {136 -- 139}, year = {2011}, language = {en} } @inproceedings{ButenwegPark2011, author = {Butenweg, Christoph and Park, Jin}, title = {Verhalten von Ankerschienensystemen unter statisch zyklischen Beanspruchungen}, series = {12. D-A-CH Tagung 2011 : Erdbeben und Baudynamik ; 15./16. September 2011, Hannover, Deutschland / Bundesanstalt f{\"u}r Geowissenschaften und Rohstoffe. C. K{\"o}nke (Hrsg.)}, booktitle = {12. D-A-CH Tagung 2011 : Erdbeben und Baudynamik ; 15./16. September 2011, Hannover, Deutschland / Bundesanstalt f{\"u}r Geowissenschaften und Rohstoffe. C. K{\"o}nke (Hrsg.)}, address = {Deutsche Gesellschaft f{\"u}r Erdbebeningenieurwesen und Baudynamik}, organization = {D-A-C-H Tagung <12, 2011, Hannover>}, isbn = {3-930108-11-9}, pages = {349 -- 365}, year = {2011}, language = {de} } @inproceedings{ReindlButenwegKubalski2011, author = {Reindl, Lukas and Butenweg, Christoph and Kubalski, Thomas}, title = {Numerical simulation of unreinforced masonry walls subject to dynamic out-of-plane loading}, series = {COMPDYN 2011 : ECCOMAS Thematic Conference ; Proceedings of the 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering ; 25-28 May, 2011, Corfu, Greece / Eds.: M. Papadrakakis ...}, booktitle = {COMPDYN 2011 : ECCOMAS Thematic Conference ; Proceedings of the 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering ; 25-28 May, 2011, Corfu, Greece / Eds.: M. Papadrakakis ...}, publisher = {National Technical Univ. of Athens}, address = {Athen}, organization = {COMPDYN <2011, Corfu>}, isbn = {978-960-99994-0-3}, pages = {1 -- 10}, year = {2011}, language = {en} } @inproceedings{ParkElDaibButenwegetal.2011, author = {Park, Jin and El-Daib, Khaled and Butenweg, Christoph and Gellert, Christoph}, title = {A novel macroelement approach for masonry walls}, series = {Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)}, booktitle = {Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)}, publisher = {K. U. Leuven, Dep. of Civil Engineering}, address = {Leuven}, organization = {International Conference on Structural Dynamics, EURODYN <8, 2011, Leuven>}, isbn = {978-90-76019-31-4}, pages = {3281 -- 3286}, year = {2011}, language = {en} } @inproceedings{TaddeiReindlParketal.2011, author = {Taddei, Francesca and Reindl, Lukas and Park, Jin and Butenweg, Christoph and Karadogan, Faruk}, title = {Numerical investigation of AAC wall panels based on the damage plasticity constitutive law}, series = {Cement, Wapno, Beton ; 2011, 7, Special issue: 5th International Conference on Autoclaved Aerated Concrete 'Securing a sustainable future' to be held at Bydgoszcz to celebrate 60 years of AAC experience in Poland, Bydgoszcz, September 14-17, 2011}, booktitle = {Cement, Wapno, Beton ; 2011, 7, Special issue: 5th International Conference on Autoclaved Aerated Concrete 'Securing a sustainable future' to be held at Bydgoszcz to celebrate 60 years of AAC experience in Poland, Bydgoszcz, September 14-17, 2011}, publisher = {Stowarzyszenie Producent{\´o}w Cementu i Wapna}, address = {Krakow}, organization = {International Conference on Autoclaved Aerated Concrete 'Securing a sustainable future' <5, 2011, Bydgoszcz>}, issn = {1425-8129}, pages = {86 -- 91}, year = {2011}, language = {en} } @inproceedings{ReindlParkNordaetal.2010, author = {Reindl, Lukas and Park, Jin and Norda, Hannah and Butenweg, Christoph}, title = {Seismic design of masonry walls subject to out-of-plane bending}, series = {Proceedings of the Tenth International Conference on Computational Structures Technology : Valencia, Spain, 14 - 17 September 2010 / organised in association with: Universidad Politecnica de Valencia ... Ed. by B. H. V. Topping ...}, booktitle = {Proceedings of the Tenth International Conference on Computational Structures Technology : Valencia, Spain, 14 - 17 September 2010 / organised in association with: Universidad Politecnica de Valencia ... Ed. by B. H. V. Topping ...}, publisher = {Civil-Comp Press}, address = {Kippen}, organization = {International Conference on Computational Structures Technology <10, 2010, Valencia>}, isbn = {978-1-905088-36-2}, doi = {10.4203/ccp.93.348}, pages = {Paper 348}, year = {2010}, language = {en} } @inproceedings{Butenweg2007, author = {Butenweg, Christoph}, title = {Nachweis der Erdbebensicherheit von Silos aus Stahl unter Erdbebenbelastung}, series = {D-A-CH Tagung 2007 : Aktuelle Themen des Erdbebeningenieurwesens und der Baudynamik ; 27. und 28. September 2007, arsenal research, TECHbase Vienna}, booktitle = {D-A-CH Tagung 2007 : Aktuelle Themen des Erdbebeningenieurwesens und der Baudynamik ; 27. und 28. September 2007, arsenal research, TECHbase Vienna}, organization = {D-A-CH Tagung <2007, Wien>}, pages = {1 -- 14}, year = {2007}, language = {de} } @inproceedings{GoemmelKraemerButenwegetal.2005, author = {G{\"o}mmel, Andreas and Kr{\"a}mer, Sebastian and Butenweg, Christoph and Kob, Malte}, title = {A combined FE and multiple-mass model for numerical simulation of phonatory maneuvers}, series = {Proceedings / Forum Acusticum, Budapest, 29 Aug - 2 Sep, 2005 : [Acoustics: science and technology for knowledge based society and healthy environment] / ed. by: F{\"u}l{\"o}p Augusztinovicz ...}, booktitle = {Proceedings / Forum Acusticum, Budapest, 29 Aug - 2 Sep, 2005 : [Acoustics: science and technology for knowledge based society and healthy environment] / ed. by: F{\"u}l{\"o}p Augusztinovicz ...}, publisher = {OPAKFI Tud. Egyes{\"u}let}, address = {Budapest}, organization = {Forum Acusticum <4, 2005, Budapest>}, isbn = {978-963-8241-68-9}, pages = {2759 -- 2764}, year = {2005}, language = {en} } @inproceedings{GoemmelButenwegKob2005, author = {G{\"o}mmel, Andreas and Butenweg, Christoph and Kob, Malte}, title = {Towards a complete finite-element model of human phonation: modeling phonatory maneuvers}, series = {12th Workshop on the Finite Element Method in Biomedical Engineering, Biomechanics and Related Fields : Ulm, Germany, 20 - 21 July 2005 / University of Ulm, Department of Orthodontics ...}, booktitle = {12th Workshop on the Finite Element Method in Biomedical Engineering, Biomechanics and Related Fields : Ulm, Germany, 20 - 21 July 2005 / University of Ulm, Department of Orthodontics ...}, publisher = {Univ., Dep. of Orthodontics}, address = {Ulm}, organization = {Workshop on the Finite Element Method in Biomedical Engineering, Biomechanics and Related Fields <12, 2005, Ulm>}, isbn = {978-3-9806183-8-0}, pages = {1 CD-ROM}, year = {2005}, language = {en} } @inproceedings{ButenwegMistler2006, author = {Butenweg, Christoph and Mistler, Michael}, title = {Seismic resistance of unreinforced masonry buildings}, series = {Proceedings of the Eighth International Conference on Computational Structures Technology : [Las Palmas de Cran Canaria, 12-15 September 2006] / ed. by B. H. V. Topping ...}, booktitle = {Proceedings of the Eighth International Conference on Computational Structures Technology : [Las Palmas de Cran Canaria, 12-15 September 2006] / ed. by B. H. V. Topping ...}, publisher = {Civil-Comp Press}, address = {Stirling}, organization = {International Conference on Computational Structures Technology <8, 2006, Las Palmas>}, isbn = {1-905088-06-X}, doi = {10.4203/ccp.83.9}, pages = {Paper 9}, year = {2006}, language = {en} } @inproceedings{RenaultButenwegMeskouris2006, author = {Renault, Philippe and Butenweg, Christoph and Meskouris, Konstantin}, title = {Baudynamische Untersuchung von Br{\"u}ckenbauwerken im K{\"o}lner Raum}, series = {Baudynamik : Tagung Kassel, 17. und 18. Mai 2006 / VDI-Gesellschaft Entwicklung, Konstruktion, Vertrieb. (VDI-Berichte ; 1941)}, booktitle = {Baudynamik : Tagung Kassel, 17. und 18. Mai 2006 / VDI-Gesellschaft Entwicklung, Konstruktion, Vertrieb. (VDI-Berichte ; 1941)}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, organization = {VDI-Gesellschaft Entwicklung, Konstruktion, Vertrieb}, isbn = {3-18-091941-8}, pages = {121 -- 140}, year = {2006}, language = {de} } @inproceedings{ButenwegGellertReindl2008, author = {Butenweg, Christoph and Gellert, Christoph and Reindl, Lukas}, title = {Capacity design of masonry buildings under cyclic loading}, series = {Seismic Risk : Earthquakes in North-Western Europe ; international colloquium ; Li{\`e}ge on 11 and 12 September 2008 / Belgian Seismic Group (BeSeiG). Ed.: T. Camlebeeck ...}, booktitle = {Seismic Risk : Earthquakes in North-Western Europe ; international colloquium ; Li{\`e}ge on 11 and 12 September 2008 / Belgian Seismic Group (BeSeiG). Ed.: T. Camlebeeck ...}, publisher = {Editions de l'Universit{\´e} de Li{\`e}ge}, address = {Li{\`e}ge}, organization = {Belgian Seismic Group}, isbn = {978-2-87456-063-7}, pages = {201 -- 208}, year = {2008}, language = {en} } @inproceedings{ButenwegGellert2008, author = {Butenweg, Christoph and Gellert, Christoph}, title = {Displacement based design of masonry structures}, series = {Proceedings of the 14th International Brick and Block Masonry Conference : (Incorporating the 8th Australasian Masonry Conference) : Sydney, Australia, 13.-20. February 2008 / ed. Mark Masia ...}, booktitle = {Proceedings of the 14th International Brick and Block Masonry Conference : (Incorporating the 8th Australasian Masonry Conference) : Sydney, Australia, 13.-20. February 2008 / ed. Mark Masia ...}, publisher = {University of Newcastle}, address = {Callaghan}, organization = {International Brick and Block Masonry Conference <14, 2008, Sydney>}, isbn = {978-19-2070-1-92-5}, pages = {1 -- 10}, year = {2008}, language = {en} } @inproceedings{MeskourisMistlerButenweg2006, author = {Meskouris, Konstantin and Mistler, Michael and Butenweg, Christoph}, title = {Mauerwerksbauten unter Erdbebenbelastung}, series = {Numerische Methoden zur Probleml{\"o}sung im konstruktiven Bauwesen : 34. Aachener Baustofftag ; 02. Februar 2006}, booktitle = {Numerische Methoden zur Probleml{\"o}sung im konstruktiven Bauwesen : 34. Aachener Baustofftag ; 02. Februar 2006}, publisher = {IBAC}, address = {Aachen}, organization = {Aachener Baustofftag <34, 2006>}, pages = {Getr. Z{\"a}hlung}, year = {2006}, language = {de} } @inproceedings{KuhlmannButenwegLopezetal.2004, author = {Kuhlmann, Wolfram and Butenweg, Christoph and Lopez, Marijen and Fernandez, Sebastian}, title = {Seismic vulnerability assessment of the historic Aachen Cathedral}, series = {Conference proceedings / 13th World Conference on Earthquake Engineering [Vancouver, British Columbia, Canada, August 1 - 6, 2004] / [hosted by CAEE/ACGP, Canadian Association for Earthquake Engineering]}, booktitle = {Conference proceedings / 13th World Conference on Earthquake Engineering [Vancouver, British Columbia, Canada, August 1 - 6, 2004] / [hosted by CAEE/ACGP, Canadian Association for Earthquake Engineering]}, publisher = {CAEE}, address = {Vancouver}, organization = {World Conference on Earthquake Engineering <13, 2004, Vancouver>}, pages = {1 -- 14}, year = {2004}, language = {en} } @inproceedings{KuhlmannButenwegBettziecheetal.2004, author = {Kuhlmann, Wolfram and Butenweg, Christoph and Bettzieche, Volker and Meskouris, Konstantin}, title = {Experimentelle und numerische Untersuchungen zur baudynamischen Beurteilung von Talsperren des Ruhrverbandes}, series = {13. Deutsches Talsperrensymposium in Weimar}, booktitle = {13. Deutsches Talsperrensymposium in Weimar}, organization = {Deutsches Talsperrensymposium <13, 2004, Weimar>}, pages = {1 -- 26}, year = {2004}, language = {de} } @inproceedings{ButenwegBettziecheKuhlmannetal.2005, author = {Butenweg, Christoph and Bettzieche, Volker and Kuhlmann, Wolfram and Meskouris, Konstantin}, title = {Die baudynamische Beurteilung von Talsperren am Beispiel der F{\"u}rwiggetalsperre}, series = {Berichte der Fachtagung Baustatik - Baupraxis 9 am 14. und 15. M{\"a}rz 2005 in Dresden / Institut f{\"u}r Statik und Dynamik der Tragwerke, TU Dresden, Deutschland}, booktitle = {Berichte der Fachtagung Baustatik - Baupraxis 9 am 14. und 15. M{\"a}rz 2005 in Dresden / Institut f{\"u}r Statik und Dynamik der Tragwerke, TU Dresden, Deutschland}, publisher = {Inst. f{\"u}r Statik und Dynamik der Tragwerke}, address = {Dresden}, organization = {Fachtagung Baustatik - Baupraxis <8, 2005, Dresden>}, isbn = {3-00-015456-6}, pages = {73 -- 84}, year = {2005}, language = {de} } @inproceedings{MeskourisButenwegMistleretal.2004, author = {Meskouris, Konstantin and Butenweg, Christoph and Mistler, Michael and Kuhlmann, Wolfram}, title = {Seismic behaviour of historic masonry buildings}, series = {7th National Congress on Mechanics : Chania, Crete, June 24 - 26, 2004 ; proceedings / ed. A. Kounadis ....}, booktitle = {7th National Congress on Mechanics : Chania, Crete, June 24 - 26, 2004 ; proceedings / ed. A. Kounadis ....}, publisher = {Hellenic Society for Theoretical and Applied Mechanics}, address = {Chania}, organization = {National Congress on Mechanics <7, 2004, Chania, Crete>}, pages = {47 -- 49}, year = {2004}, language = {en} } @article{ButenwegGellertSchlundt2010, author = {Butenweg, Christoph and Gellert, Christoph and Schlundt, Andreas}, title = {Nichtlinearer Erdbebennachweis von Geb{\"a}uden aus Kalksandsteinmauerwerk nach DIN EN 1998}, series = {Mauerwerk : European journal of masonry}, volume = {14}, journal = {Mauerwerk : European journal of masonry}, number = {3}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1432-3427}, doi = {10.1002/dama.201000463}, pages = {120 -- 125}, year = {2010}, abstract = {Die Erdbebensicherheit von Geb{\"a}uden aus Kalksandsteinmauerwerk ist aktuell nach DIN 4149 mit linearen Verfahren nachzuweisen. Dies f{\"u}hrt in der praktischen Anwendung zu großen Problemen, da selbst traditionell {\"u}bliche Grundrisse teilweise nicht mehr ohne zus{\"a}tzliche Maßnahmen nachweisbar sind. Zur L{\"o}sung dieser Problematik wurden von der deutschen Mauerwerksindustrie auf nationaler und europ{\"a}ischer Ebene Forschungsprojekte initiiert, deren Ergebnisse in Form von statisch nichtlinearen Verfahren Eingang in den Nationalen Anhang zur DIN EN 1998-1 [12] gefunden haben. Mit den Verfahren wird die Nachweissituation zuk{\"u}nftig grundlegend verbessert, da mit diesen die Tragwerksreserven wesentlich besser ausgenutzt werden k{\"o}nnen. Im Folgenden wird die Anwendung der Verfahren am Beispiel einer Reihenhauszeile aus Kalksandsteinmauerwerk demonstriert. Der Nachweis der Reihenh{\"a}user wurde im Rahmen einer Zustimmung im Einzelfall, die vom Bundesverband Kalksandsteinindustrie eV in Hannover koordiniert wurde, durch unabh{\"a}ngige Gutachter und die Bauaufsicht eingehend gepr{\"u}ft und f{\"u}r richtig befunden. Die Durchf{\"u}hrung des Nachweises erfolgte auf Grundlage eines an der RWTH Aachen entwickelten neuen Nachweiskonzeptes. Die baupraktische Anwendbarkeit und einfache Nachvollziehbarkeit dieses Konzepts ist durch eine softwaretechnische Umsetzung sichergestellt.}, language = {de} } @article{ButenwegFaeckeFehlingetal.2010, author = {Butenweg, Christoph and F{\"a}cke, Andreas and Fehling, Ekkehard and Gellert, Christoph and Gierga, Michael and Meyer, Udo and R{\"u}tschlin, Andreas H. and St{\"u}rz, Jochen}, title = {Energieeffizient und erdbebensicher Bauen mit monolithischem Ziegelmauerwerk}, series = {Mauerwerk : European journal of masonry}, volume = {14}, journal = {Mauerwerk : European journal of masonry}, number = {1}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1432-3427}, doi = {10.1002/dama.201000456}, pages = {3 -- 9}, year = {2010}, abstract = {Moderne Bauwerke m{\"u}ssen heute eine hohe energetische Leistungsf{\"a}higkeit aufweisen und gleichzeitig alle einwirkenden Lasten sicher abtragen. Dies stellt insbesondere in Erdbebengebieten hohe Anforderungen an die verwendeten Baustoffe. Am baupraktischen Beispiel einer Doppelhaush{\"a}lfte wird demonstriert, dass die Symbiose aus energieeffizientem und gleichzeitig erdbebensicherem Bauen in der h{\"o}chsten deutschen Erdbebenzone mit monolithischem Ziegelmauerwerk gut realisierbar ist. Als Ziegelmauerwerk werden f{\"u}r die Außenw{\"a}nde w{\"a}rmetechnisch optimierte Hochlochziegel verwendet, die sowohl die Anforderungen der Energieeinsparverordnung 2009 als auch die Anforderungen an Mauerwerkbaustoffe nach den aktuellen Erdbebennormen erf{\"u}llen. Der Erdbebennachweis der Doppelhaush{\"a}lfte erfolgt mit einem nichtlinearen Nachweisverfahren, das f{\"u}r eine einfache praktische Anwendung programmtechnisch umgesetzt wurde. F{\"u}r den Nachweis wurden aus zyklischen Schubwandversuchen ermittelte Last-Verformungskurven verwendet. Das gesamte in Deutschland noch nicht normativ geregelte Nachweiskonzept wurde im Rahmen einer Zustimmung im Einzelfall gepr{\"u}ft und genehmigt.}, language = {de} } @article{ButenwegFehling2012, author = {Butenweg, Christoph and Fehling, Ekkehard}, title = {Hintergrund f{\"u}r die vereinfachten Regeln bei Mauerwerksgeb{\"a}uden im Erdbebenfall}, series = {Mauerwerk : European journal of masonry}, volume = {Volume 16}, journal = {Mauerwerk : European journal of masonry}, number = {Issue 3}, publisher = {Wiley}, address = {Weinheim}, issn = {1437-1022 (E-Journal); 1432-3427 (Print)}, doi = {10.1002/dama.201200537}, pages = {127 -- 137}, year = {2012}, abstract = {Bei der Ausarbeitung des nationalen Anwendungsdokumentes zur DIN EN 1998-1 waren die in der ENV-Fassung enthaltenen vereinfachten Regeln im Lichte aktueller Forschungsergebnisse zu {\"u}berpr{\"u}fen und zu {\"u}berarbeiten. Die gleiche Aufgabe stellte sich auch f{\"u}r die Neufassung der DIN 4149. In beiden F{\"a}llen sind neben konstruktiven Regeln f{\"u}r die Art und Anordnung der zur Geb{\"a}udeaussteifung heranzuziehenden W{\"a}nde im Grundriss Tabellen enthalten, die unter bestimmten Bedingungen den Entfall eines rechnerischen Nachweises der Tragw{\"a}nde im Erdbebenfall erm{\"o}glichen. Dies ist f{\"u}r Schwachbebengebiete, wie sie in Deutschland und anderen L{\"a}ndern Mitteleuropas anzutreffen sind, sinnvoll, um unn{\"o}tigen Rechenaufwand sowie Probleme mit der F{\"u}hrbarkeit von Nachweisen so weit wie m{\"o}glich auszuschalten. Im vorliegenden Beitrag werden die Hintergr{\"u}nde der vereinfachten Regeln diskutiert und die Ergebnisse der Anwendung mit verschiedenen Rechenverfahren verglichen und bewertet.}, language = {de} } @article{ButenwegGellert2012, author = {Butenweg, Christoph and Gellert, Christoph}, title = {Integrale Geb{\"a}udeplanung am Beispiel eines Geschossbaus in Ziegelmauerwerk}, series = {Mauerwerk : European journal of masonry}, volume = {Volume 16}, journal = {Mauerwerk : European journal of masonry}, number = {5}, publisher = {Wiley}, address = {Weinheim}, issn = {1437-1022 (E-Journal); 1432-3427 (Print)}, doi = {10.1002/dama.201200550}, pages = {247 -- 254}, year = {2012}, abstract = {Moderne Mauerwerksbauten m{\"u}ssen nach heutigen Anforderungen architektonisch, statisch, energetisch sowie schall- und brandschutztechnisch optimal ausgelegt sein. Aufgrund der Komplexit{\"a}t und engen Verzahnung der einzelnen Anforderungen ist eine integrale Geb{\"a}udeplanung zur Erzielung einer qualitativ hochwertigen Bauwerksl{\"o}sung unbedingt notwendig. Diese erfordert von den Fachplanern vertieftes Spezialwissen in den verschiedenen Bereichen, um insbesondere die Schnittstellen und Bauwerksdetails korrekt zu planen und auszuf{\"u}hren. Der Beitrag stellt die integrale Geb{\"a}udeplanung am Beispiel eines Geschossbaus in Ziegelbauweise mit L{\"o}sungen f{\"u}r wesentliche Detailpunkte vor}, language = {de} } @article{EdipGarevskiButenwegetal.2013, author = {Edip, Kemal and Garevski, Mihail and Butenweg, Christoph and Sesov, Vlatko and Cvetanovska, Julijana and Gjorgiev, Igor}, title = {Numerical simulation of geotechnical problems by coupled finite and infinite elements}, series = {Journal of civil engineering and architecture}, volume = {7}, journal = {Journal of civil engineering and architecture}, number = {1}, publisher = {David Publishing}, address = {Libertyville}, issn = {1934-7359 (E-Journal)}, pages = {68 -- 77}, year = {2013}, language = {en} } @article{MeskourisButenwegGellert2009, author = {Meskouris, Konstantin and Butenweg, Christoph and Gellert, Christoph}, title = {Einfache Nachweise : einige Beispiele f{\"u}r die Anwendung des Bemessungsprogramms der RWTH Aachen f{\"u}r den Nachweis von Mauerwerksbauten in Erdbebengebieten}, series = {Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.}, journal = {Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.}, number = {Heft 6}, publisher = {Rauh Medien GmbH}, address = {Wandlitz}, issn = {0946-2422}, pages = {26 -- 29}, year = {2009}, language = {de} } @article{NordaButenweg2011, author = {Norda, Hannah and Butenweg, Christoph}, title = {M{\"o}glichkeiten und Grenzen der Anwendbarkeit statisch nichtlinearer Verfahren nach DIN EN 1998-1}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, volume = {Band 86}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {1436-4867 (E-Journal); 0005-6650 (Print)}, pages = {S13 -- S21}, year = {2011}, language = {de} } @article{ButenwegHoltschoppen2012, author = {Butenweg, Christoph and Holtschoppen, Britta}, title = {Neuer VCI-Leitfaden f{\"u}r die erdbebensichere Auslegung von Industrieanlagen}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, volume = {Band 87}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {1436-4867 (E-Journal); 0005-6650 (Print)}, pages = {S18}, year = {2012}, language = {de} } @article{MeskourisButenwegGellert2009, author = {Meskouris, Konstantin and Butenweg, Christoph and Gellert, Christoph}, title = {Iterativ verbessert : die RWTH Aachen entwickelt eine Software f{\"u}r einfache Nachweise von Mauerwerksbauten in Erdbebengebieten}, series = {Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.}, journal = {Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.}, number = {Heft 5}, publisher = {Rauh Medien GmbH}, address = {Wandlitz}, issn = {2365-192X}, pages = {31 -- 36}, year = {2009}, language = {de} } @article{ButenwegGellertKranzler2008, author = {Butenweg, Christoph and Gellert, Christoph and Kranzler, Thomas}, title = {Pseudo-dynamische Versuche an Reihenmittelh{\"a}usern - Vergleich mit aktuellen Berechnungsans{\"a}tzen}, series = {Mauerwerk : European journal of masonry}, volume = {Volume 12}, journal = {Mauerwerk : European journal of masonry}, number = {Issue 6}, issn = {1437-1022 (E-Journal); 1432-3427 (Print)}, doi = {10.1002/dama.200800397}, pages = {315 -- 326}, year = {2008}, language = {de} } @article{GoemmelButenwegBolenderetal.2007, author = {G{\"o}mmel, Andreas and Butenweg, Christoph and Bolender, Katrin and Grunendahl, Arno}, title = {A muscle controlled finite-element model of laryngeal abduction and adduction}, series = {Computer methods in biomechanics and biomedical engineering}, volume = {Volume 10}, journal = {Computer methods in biomechanics and biomedical engineering}, number = {Issue 5}, issn = {1476-8259 (E-Journal); 1025-5842 (Print)}, pages = {377 -- 388}, year = {2007}, language = {en} } @article{RochefortVerverGrunendahletal.2005, author = {Rochefort, E. de and Verver, M. and Grunendahl, A. and Mooi, H. and Butenweg, Christoph}, title = {Detailed modelling of the lumbar spine for investigations of low back pain}, series = {SAE transactions : papers presented at Society and Section meetings / Society of Automotive Engineers}, volume = {Volume 114}, journal = {SAE transactions : papers presented at Society and Section meetings / Society of Automotive Engineers}, number = {Part 7}, organization = {Society of Automotive Engineers}, issn = {0096-736X}, pages = {788 -- 796}, year = {2005}, language = {en} } @article{KuhlmannButenwegBettzieche2006, author = {Kuhlmann, Wolfram and Butenweg, Christoph and Bettzieche, Volker}, title = {Experimentelle und numerische Untersuchungen zur baudynamischen Beurteilung von Talsperren}, series = {Wasserwirtschaft : Hydrologie, Wasserbau, Hydromechanik, Gew{\"a}sser, {\"O}kologie, Boden}, volume = {Band 96}, journal = {Wasserwirtschaft : Hydrologie, Wasserbau, Hydromechanik, Gew{\"a}sser, {\"O}kologie, Boden}, number = {Heft 5}, issn = {0043-0978 (E-Journal); 0043-0978 (Print)}, pages = {10 -- 16}, year = {2006}, language = {de} } @article{ButenwegGellertMeskouris2007, author = {Butenweg, Christoph and Gellert, Christoph and Meskouris, Konstantin}, title = {Mauerwerksw{\"a}nde unter zyklischer Schubbeanspruchung}, series = {Mauerwerk : European journal of masonry}, volume = {Volume 11}, journal = {Mauerwerk : European journal of masonry}, number = {Issue 6}, issn = {1437-1022 (E-Journal); 1432-3427 (Print)}, doi = {10.1002/dama.200700356}, pages = {356 -- 362}, year = {2007}, language = {de} } @article{MeskourisButenwegRenault2006, author = {Meskouris, Konstantin and Butenweg, Christoph and Renault, Philippe}, title = {Mehrstufen-Konzept f{\"u}r mehr Erdbebensicherheit : ein Werkzeug f{\"u}r die Beurteilung der Erdbebengef{\"a}hrdung von Ingenieurbauwerken}, series = {Deutsches Ingenieurblatt}, volume = {Band 13}, journal = {Deutsches Ingenieurblatt}, number = {Heft 6}, issn = {0946-2422}, pages = {18 -- 26}, year = {2006}, language = {de} } @article{HoltschoppenButenwegMeskouris2009, author = {Holtschoppen, Britta and Butenweg, Christoph and Meskouris, Konstantin}, title = {Seismic design of non-structural components in industrial facilities}, series = {International journal of engineering under uncertainty}, volume = {Volume 1}, journal = {International journal of engineering under uncertainty}, issn = {0975-4806}, pages = {1 -- 13}, year = {2009}, language = {en} } @inproceedings{EggertWeber2023, author = {Eggert, Mathias and Weber, Jannik}, title = {What drives the purchase decision in Instagram stores?}, series = {ECIS 2023 Research Papers}, booktitle = {ECIS 2023 Research Papers}, pages = {1 -- 17}, year = {2023}, abstract = {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.}, language = {en} } @incollection{ButenwegThierauf1999, author = {Butenweg, Christoph and Thierauf, G.}, title = {Automatic design of reinforced concrete structures with parallel computing}, series = {Innovative computational methods for structural mechanics}, booktitle = {Innovative computational methods for structural mechanics}, editor = {Papadrakakis, M. and Topping, B.H.V.}, publisher = {Saxe-Coburg Publication}, address = {Edinburgh}, isbn = {1-874672-05-9}, doi = {10.4203/csets.1.14}, pages = {305 -- 318}, year = {1999}, abstract = {A concept for the analysis and optimal design of reinforced concrete structures is described. It is based on a nonlinear optimization algorithm and a finite element program for linear and nonlinear analysis of structures. With the aim of minimal cost design a two stage optimization using efficient gradient algorithm is developed. The optimization problems on global (structural) and local (crosssectional) level are formulated. A parallelization concept for solving the two stage optimization problem in minimal time is presented. Examples are included to illustrate the practical use and the effectively of the parallelization in the area of engineering design.}, language = {en} } @book{MeskourisRenaultButenwegetal.2007, author = {Meskouris, Konstantin and Renault, Philippe and Butenweg, Christoph and Hinzen, Klaus-G. and Weber, Bernd}, title = {Gef{\"a}hrdungsabsch{\"a}tzung von Br{\"u}cken in Deutschland unter Erdbebenbelastung. [Bericht zum Forschungs- und Entwicklungsvorhaben FE 15.393/2003/FRB des Bundesministeriums f{\"u}r Verkehr, Bau und Stadtentwicklung.] (Forschung Straßenbau und Straßenverkehrstechnik ; 952)}, publisher = {Bundesministerium f{\"u}r Verkehr, Bau und Stadtentwicklung, Abt. Straßenbau, Straßenverkehr}, address = {Bonn}, isbn = {978-3-86509-602-9}, pages = {80 S.}, year = {2007}, language = {de} } @incollection{MeskourisButenwegKalkeretal.2007, author = {Meskouris, Konstantin and Butenweg, Christoph and Kalker, Ines and Mistler, Michael}, title = {Numerical simulation of historic masonry buildings}, series = {Antike Erdbeben im alpinen und zirkumalpinen Raum : Befunde und Probleme in arch{\"a}ologischer, historischer und seismologischer Sicht ; Beitr{\"a}ge des Interdisziplin{\"a}ren Workshops Schloss Hohenkammer, 14./15. Mai 2004 = Earthquakes in antiquity in the alpine and circum-alpine region / Gerhard H. Waldherr ; Anselm Smolka (Hrsg.) (Geographica Historica ; 24)}, booktitle = {Antike Erdbeben im alpinen und zirkumalpinen Raum : Befunde und Probleme in arch{\"a}ologischer, historischer und seismologischer Sicht ; Beitr{\"a}ge des Interdisziplin{\"a}ren Workshops Schloss Hohenkammer, 14./15. Mai 2004 = Earthquakes in antiquity in the alpine and circum-alpine region / Gerhard H. Waldherr ; Anselm Smolka (Hrsg.) (Geographica Historica ; 24)}, publisher = {Franz Steiner Verlag}, address = {Stuttgart}, isbn = {978-3-515-09030-8 ; 3-515-09030-4}, pages = {171 -- 189}, year = {2007}, language = {en} } @book{MeskourisButenwegHolleretal.2012, author = {Meskouris, Konstantin and Butenweg, Christoph and Holler, Stefan and Hake, Erwin}, title = {Baustatik in Beispielen}, edition = {2., bearb. Aufl.}, publisher = {Springer}, address = {Heidelberg ; Dordrecht ; London ; New York}, isbn = {978-3-642-23529-0 (Print) ; 978-3-642-23530-6 (E-Book)}, pages = {XI, 431 S.}, year = {2012}, language = {de} } @techreport{RosinTaddeiSchmittetal.2013, author = {Rosin, Julia and Taddei, Francesca and Schmitt, Timo and Butenweg, Christoph}, title = {Erdbebensch{\"a}den in der Emilia Romagna, Norditalien : DGEB-Erkundungsreise 1.6. - 4.6.2012 / C. Butenweg (Hrsg.) (DGEB-Publikation ; Nr. 15)}, publisher = {DGEB}, address = {Aachen}, isbn = {3-930108-11-9}, pages = {VI, 108 S.}, year = {2013}, language = {de} } @incollection{MeskourisButenweg2008, author = {Meskouris, Konstantin and Butenweg, Christoph}, title = {Erdbebensichere Auslegung von Bauwerken nach DIN 4149:2005}, series = {Betonkalender 2008: Konstruktiver Wasserbau, erdbebensicheres Bauen. Band 2}, booktitle = {Betonkalender 2008: Konstruktiver Wasserbau, erdbebensicheres Bauen. Band 2}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {978-3-433-01839-2 (Print) ; 978-3-433-01854-5 (E-Book)}, doi = {10.1002/9783433600702.ch5}, pages = {1 -- 54}, year = {2008}, language = {de} } @incollection{ButenwegGellert2007, author = {Butenweg, Christoph and Gellert, Christoph}, title = {Berechnung und Bemessung von durch Erdbeben beanspruchten Mauerwerksbauten nach DIN 4149 (04.2005)}, series = {Mauerwerksbau-Praxis / Schubert ; Schneider ; Schoch (Hrsg.)}, booktitle = {Mauerwerksbau-Praxis / Schubert ; Schneider ; Schoch (Hrsg.)}, publisher = {Werner Verlag}, address = {Berlin}, isbn = {3-9343-6938-3 ; 978-3-9343-6938-2}, pages = {363 -- 393}, year = {2007}, language = {de} } @book{MeskourisHinzenButenwegetal.2007, author = {Meskouris, Konstantin and Hinzen, Klaus-G{\"u}nter and Butenweg, Christoph and Mistler, Michael}, title = {Bauwerke und Erdbeben : Grundlagen - Anwendung - Beispiele}, edition = {2., erweiterte und aktualisierte Auflage}, publisher = {Vieweg}, address = {Wiesbaden}, isbn = {3-8348-0146-1 ; 978-3-8348-0146-3}, pages = {XIII, 493 S. ; 1 CD-ROM}, year = {2007}, language = {de} } @inproceedings{MarinkovicButenweg2020, author = {Marinkovic, Marko and Butenweg, Christoph}, title = {Seismic behaviour of RC frames with uncoupled masonry infills having two storeys or two bays}, series = {Brick and Block Masonry - From Historical to Sustainable Masonry. Proceedings of the 17th International Brick/Block Masonry Conference}, booktitle = {Brick and Block Masonry - From Historical to Sustainable Masonry. Proceedings of the 17th International Brick/Block Masonry Conference}, publisher = {CRC Press}, address = {London}, doi = {10.1201/9781003098508-72}, pages = {1 -- 7}, year = {2020}, abstract = {Reinforced concrete (RC) structures with masonry infills are widely used for several types of buildings all over the world. However, it is well known that traditional masonry infills constructed with rigid contact to the surrounding RC frame performed rather poor in past earthquakes. Masonry infills showed severe in-plane damages and failed in many cases under out-of-plane seismic loading. As the undesired interactions between frames and infills changes the load transfer on building level, complete collapses of buildings were observed. A possible solution is uncoupling of masonry infills to the frame to reduce the infill contribution activated by the frame deformation under horizontal loading. The paper presents numerical simulations on RC frames equipped with the innovative decoupling system INODIS. The system was developed within the European project INSYSME and allows an effective uncoupling of frame and infill. The simulations are carried out with a micro-modelling approach, which is able to predict the complex nonlinear behaviour resulting from the different materials and their interaction. Each brick is modelled individually and connected taking into account nonlinearity of a brick mortar interface. The calibration of the model is based on small specimen tests and experimental results for one bay one storey frame are used for the validation. The validated model is further used for parametric studies on two storey and two bay infilled frames. The response and change of the structural stiffness are analysed and compared to the traditionally infilled frame. The results confirm the effectiveness of the INODIS system with less damage and relatively low contribution of the infill at high drift levels. In contrast to the uncoupled system configurations, traditionally infilled frames experienced brittle failure at rather low drift levels.}, language = {en} } @inproceedings{MichelRosinButenwegetal.2020, author = {Michel, Philipp and Rosin, Julia and Butenweg, Christoph and Klinkel, Sven}, title = {Soil-dependent earthquake spectra in the analysis of liquid-storage-tanks on compliant soil}, series = {Seismic design of industrial facilities 2020}, booktitle = {Seismic design of industrial facilities 2020}, publisher = {Apprimus Verlag}, address = {Aachen}, isbn = {978-3-86359-729-0}, pages = {245 -- 254}, year = {2020}, abstract = {A further development of the Added-Mass-Method allows the combined representation of the effects of both soil-structure-interaction and fluid-structure interaction on a liquid-filled-tank in one model. This results in a practical method for describing the dynamic fluid pressure on the tank shell during joint movement. The fluid pressure is calculated on the basis of the tank's eigenform and the earthquake acceleration and represented by additional masses on the shell. The bearing on compliant ground is represented by replacement springs, which are calculated dependent on the local soil composition. The influence of the shear modulus of the compliant soil is clearly visible in the pressure curves and the stress distribution in the shell. The acceleration spectra are also dependent on soil stiffness. According to Eurocode-8 the acceleration spectra are determined for fixed soil-classes, instead of calculating the accelerations for each site in direct dependence on the soil composition. This leads to unrealistic sudden changes in the system's response. Therefore, earthquake spectra are calculated for different soil models in direct dependence of the shear modulus. Thus, both the acceleration spectra and the replacement springs match the soil composition. This enables a reasonable and consistent calculation of the system response for the actual conditions at each site.}, language = {en} } @inproceedings{MarkinkovicButenwegPaveseetal.2020, author = {Markinkovic, Marko and Butenweg, Christoph and Pavese, A. and Lanese, I. and Hoffmeister, B. and Pinkawa, M. and Vulcu, C. and Bursi, O. and Nardin, C. and Paolacci, F. and Quinci, G. and Fragiadakis, M. and Weber, F. and Huber, P. and Renault, P. and G{\"u}ndel, M. and Dyke, S. and Ciucci, M. and Marino, A.}, title = {Investigation of the seismic behaviour of structural and nonstructural components in industrial facilities by means of shaking table tests}, series = {Seismic design of industrial facilities 2020}, booktitle = {Seismic design of industrial facilities 2020}, publisher = {Apprimus Verlag}, address = {Aachen}, isbn = {978-3-86359-729-0}, pages = {159 -- 172}, year = {2020}, language = {en} } @inproceedings{CacciatoreButenweg2020, author = {Cacciatore, Pamela and Butenweg, Christoph}, title = {Seismic safety of cylindrical granular material steel silos under seismic loading}, series = {Seismic design of industrial facilities 2020}, booktitle = {Seismic design of industrial facilities 2020}, publisher = {Apprimus Verlag}, address = {Aachen}, isbn = {978-3-86359-729-0}, pages = {231 -- 244}, year = {2020}, language = {en} } @incollection{ButenwegEbenau1996, author = {Butenweg, Christoph and Ebenau, C.}, title = {Entwicklung eines objekt-orientierten FE-Programms}, series = {Forum Bauinformatik - Junge Wissenschaftler forschen, Cottbus '96}, booktitle = {Forum Bauinformatik - Junge Wissenschaftler forschen, Cottbus '96}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, isbn = {978-3-18-313504-2}, pages = {60 -- 65}, year = {1996}, language = {de} } @inproceedings{GrundmannBauerBodenetal.2019, author = {Grundmann, Jan Thimo and Bauer, Waldemar and Boden, Ralf Christian and Ceriotti, Matteo and Cordero, Federico and Dachwald, Bernd and Dumont, Etienne and Grimm, Christian D. and Hercik, D. and Herique, A. and Ho, Tra-Mi and Jahnke, Rico and Kofman, Wlodek and Lange, Caroline and Lichtenheldt, Roy and McInnes, Colin R. and Mikschl, Tobias and Montenegro, Sergio and Moore, Iain and Pelivan, Ivanka and Peloni, Alessandro and Plettenmeier, Dirk and Quantius, Dominik and Reershemius, Siebo and Renger, Thomas and Riemann, Johannes and Rogez, Yves and Ruffer, Michael and Sasaki, Kaname and Schmitz, Nicole and Seboldt, Wolfgang and Seefeldt, Patric and Spietz, Peter and Spr{\"o}witz, Tom and Sznajder, Maciej and Toth, Norbert and Viavattene, Giulia and Wejmo, Elisabet and Wolff, Friederike and Ziach, Christian}, title = {Responsive exploration and asteroid characterization through integrated solar sail and lander development using small spacecraft technologies}, series = {IAA Planetary Defense Conference}, booktitle = {IAA Planetary Defense Conference}, year = {2019}, abstract = {In parallel to the evolution of the Planetary Defense Conference, the exploration of small solar system bodies has advanced from fast fly-bys on the sidelines of missions to the planets to the implementation of dedicated sample-return and in-situ analysis missions. Spacecraft of all sizes have landed, touch-and-go sampled, been gently beached, or impacted at hypervelocity on asteroid and comet surfaces. More have flown by close enough to image their surfaces in detail or sample their immediate environment, often as part of an extended or re-purposed mission. And finally, full-scale planetary defense experiment missions are in the making. Highly efficient low-thrust propulsion is increasingly applied beyond commercial use also in mainstream and flagship science missions, in combination with gravity assist propulsion. Another development in the same years is the growth of small spacecraft solutions, not in size but in numbers and individual capabilities. The on-going NASA OSIRIS-REx and JAXA HAYABUSA2 missions exemplify the trend as well as the upcoming NEA SCOUT mission or the landers MINERVA-II and MASCOT recently deployed on Ryugu. We outline likely as well as possible and efficient routes of continuation of all these developments towards a propellant-less and highly efficient class of spacecraft for small solar system body exploration: small spacecraft solar sails designed for carefree handling and equipped with carried landers and application modules, for all asteroid user communities -planetary science, planetary defence, and in-situ resource utilization. This projection builds on the experience gained in the development of deployable membrane structures leading up to the successful ground deployment test of a (20 m)² solar sail at DLR Cologne and in the 20 years since. It draws on the background of extensive trajectory optimization studies, the qualified technology of the DLR GOSSAMER-1 deployment demonstrator, and the MASCOT asteroid lander. These enable 'now-term' as well as near-term hardware solutions, and thus responsive fast-paced development. Mission types directly applicable to planetary defense include: single and Multiple NEA Rendezvous ((M)NR) for mitigation precursor, target monitoring and deflection follow-up tasks; sail-propelled head-on retrograde kinetic impactors (RKI) for mitigation; and deployable membrane based methods to modify the asteroid's properties or interact with it. The DLR-ESTEC GOSSAMER Roadmap initiated studies of missions uniquely feasible with solar sails such as Displaced L1 (DL1) space weather advance warning and monitoring and Solar Polar Orbiter (SPO) delivery which demonstrate the capability of near-term solar sails to achieve NEA rendezvous in any kind of orbit, from Earth-coorbital to extremely inclined and even retrograde orbits. For those mission types using separable payloads, such as SPO, (M)NR and RKI, design concepts can be derived from the separable Boom Sail Deployment Units characteristic of DLR GOSSAMER solar sail technology, nanolanders like MASCOT, or microlanders like the JAXA-DLR Jupiter Trojan Asteroid Lander for the OKEANOS mission which can shuttle from the sail to the asteroids visited and enable multiple NEA sample-return missions. These are an ideal match for solar sails in micro-spacecraft format whose launch configurations are compatible with ESPA and ASAP secondary payload platforms.}, language = {en} } @incollection{AkimbekovDigelSherelkhanetal.2022, author = {Akimbekov, Nuraly S. and Digel, Ilya and Sherelkhan, Dinara K. and Razzaque, Mohammed S.}, title = {Vitamin D and Phosphate Interactions in Health and Disease}, series = {Phosphate Metabolism}, booktitle = {Phosphate Metabolism}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-91621-3}, doi = {10.1007/978-3-030-91623-7_5}, pages = {37 -- 46}, year = {2022}, abstract = {Vitamin D plays an essential role in calcium and inorganic phosphate (Pi) homeostasis, maintaining their optimal levels to assure adequate bone mineralization. Vitamin D, as calcitriol (1,25(OH)2D), not only increases intestinal calcium and phosphate absorption but also facilitates their renal reabsorption, leading to elevated serum calcium and phosphate levels. The interaction of 1,25(OH)2D with its receptor (VDR) increases the efficiency of intestinal absorption of calcium to 30-40\% and phosphate to nearly 80\%. Serum phosphate levels can also influence 1,25 (OH)2D and fibroblast growth factor 23 (FGF23) levels, i.e., higher phosphate concentrations suppress vitamin D activation and stimulate parathyroid hormone (PTH) release, while a high FGF23 serum level leads to reduced vitamin D synthesis. In the vitamin D-deficient state, the intestinal calcium absorption decreases and the secretion of PTH increases, which in turn causes the stimulation of 1,25(OH)2D production, resulting in excessive urinary phosphate loss. Maintenance of phosphate homeostasis is essential as hyperphosphatemia is a risk factor of cardiovascular calcification, chronic kidney diseases (CKD), and premature aging, while hypophosphatemia is usually associated with rickets and osteomalacia. This chapter elaborates on the possible interactions between vitamin D and phosphate in health and disease.}, 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} } @inproceedings{Dachwald2005, author = {Dachwald, Bernd}, title = {Global optimization of low-thrust space missions using evolutionary neurocontrol}, series = {Proceedings of the international workshop on global optimization}, booktitle = {Proceedings of the international workshop on global optimization}, pages = {85 -- 90}, year = {2005}, abstract = {Low-thrust space propulsion systems enable flexible high-energy deep space missions, but the design and optimization of the interplanetary transfer trajectory is usually difficult. It involves much experience and expert knowledge because the convergence behavior of traditional local trajectory optimization methods depends strongly on an adequate initial guess. Within this extended abstract, evolutionary neurocontrol, a method that fuses artificial neural networks and evolutionary algorithms, is proposed as a smart global method for low-thrust trajectory optimization. It does not require an initial guess. The implementation of evolutionary neurocontrol is detailed and its performance is shown for an exemplary mission.}, language = {en} }