@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{DigelTemizArtmannNojimaetal.2003,
  author    = {Digel, Ilya and Temiz Artmann, Ayseg{\"u}l and Nojima, H. and Artmann, Gerhard},
  title     = {Plasma-generated cluster ions' effects on indoor microflora : [abstract]},
  year      = {2003},
  abstract  = {Recently, SHARP corporation has developed the world's first "Plasma Cluster Ions® (PCI)" air purification technology, which uses plasma discharge to generate cluster ions. The new Plasma Cluster Device releases positive and negative ions into the air, which are harmless to humans and are able to decompose and deactivate airborne substances by chemical reactions. In the past, phenomenological tests on the efficacy of the PCI air purification technology on microbial cells have been conducted. In most cases, it has been shown that PCI demonstrated strongly pronounced killing effects on microorganisms. However, the particular mechanisms of PCI action still have to be uncovered.},
  subject      = {Clusterion},
  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}
}
@article{ThomaGardiFisheretal.2024,
  author    = {Thoma, Andreas and Gardi, Alessandro and Fisher, Alex and Braun, Carsten},
  title     = {Improving local path planning for UAV flight in challenging environments by refining cost function weights},
  series = {CEAS Aeronautical Journal},
  journal   = {CEAS Aeronautical Journal},
  publisher = {Springer},
  address   = {Wien},
  issn      = {1869-5590 (eISSN)},
  doi       = {10.1007/s13272-024-00741-x},
  pages     = {12 Seiten},
  year      = {2024},
  abstract  = {Unmanned Aerial Vehicles (UAV) constantly gain in versatility. However, more reliable path planning algorithms are required until full autonomous UAV operation is possible. This work investigates the algorithm 3DVFH* and analyses its dependency on its cost function weights in 2400 environments. The analysis shows that the 3DVFH* can find a suitable path in every environment. However, a particular type of environment requires a specific choice of cost function weights. For minimal failure, probability interdependencies between the weights of the cost function have to be considered. This dependency reduces the number of control parameters and simplifies the usage of the 3DVFH*. Weights for costs associated with vertical evasion (pitch cost) and vicinity to obstacles (obstacle cost) have the highest influence on the failure probability of the local path planner. Environments with mainly very tall buildings (like large American city centres) require a preference for horizontal avoidance manoeuvres (achieved with high pitch cost weights). In contrast, environments with medium-to-low buildings (like European city centres) benefit from vertical avoidance manoeuvres (achieved with low pitch cost weights). The cost of the vicinity to obstacles also plays an essential role and must be chosen adequately for the environment. Choosing these two weights ideal is sufficient to reduce the failure probability below 10\%.},
  language  = {en}
}
@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}
}