@book{OPUS4-2182,
  title     = {Simulationsforum 2013 - Schweißen und W{\"a}rmebehandlung},
  editor    = {Hildebrand, J{\"o}rg and Loose, Tobias and Sakkiettibutra, Jens and Brand, Marcus},
  publisher = {F{\"o}rderverein W{\"a}rmebehandlung und Schweißen e.V.},
  address   = {Weimar},
  isbn      = {978-3-00-045902-3},
  doi       = {10.25643/bauhaus-universitaet.2182},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140512-21820},
  pages     = {234},
  abstract  = {Das Buch ver{\"o}ffentlicht 22 Fachbeitr{\"a}ge der Konferenz "Simulationsforum 2013 - Schweißen und W{\"a}rmebehandlung".},
  subject      = {Schweißen},
  language  = {de}
}
@periodical{OPUS4-4852,
  title     = {Schwerpunkt Synchronisation},
  volume    = {2014},
  number    = {5.2014, Heft 2},
  editor    = {Engell, Lorenz and Siegert, Bernhard},
  publisher = {Felix Meiner Verlag},
  address   = {Hamburg},
  organization    = {Internationales Kolleg f{\"u}r Kulturtechnikforschung und Medienphilosophie},
  issn      = {2366-0767},
  doi       = {10.28937/ZMK-5-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20240507-48527},
  pages     = {183},
  abstract  = {Nichts ist so aktuell wie die Gegenwart; gegenw{\"a}rtig sein aber heißt gleichzeitig sein mit etwas anderem, und diese Gleichzeitigkeit muss immer eigens durch geeignete Operationen der {\"U}bertragung, der {\"U}berbr{\"u}ckung, der Abstimmung und ihre Werkzeuge hergestellt werden. So schlicht erkl{\"a}rt sich die grundlegende und aktuelle Relevanz des Themas der Synchronisierung ebenso wie seine kulturtechnische und medienphilosophische Ausformung. Die aktuelle medientheoretische und medienhistorische Aufmerksamkeit f{\"u}r die Verfertigung der Gegenwart (deren wichtigste Operation diejenige der Synchronisierung ist), wie sie sich auch im Jahresthema 2012/2013 der Forschungen am Internationalen Kolleg f{\"u}r Kulturtechnikforschung und Medienphilosophie (IKKM) niedergeschlagen hat, reagiert auf eine spezifische zeitphilosophische Spannungslage, die sich im Anschluss an die strukturale und poststrukturale sowie die systemtheoretische Differenztheorie einerseits und an eher empirische, ph{\"a}nomenale, aber auch technikhistorisch und -theoretisch relevante Sachverhalte andererseits ergeben hat. Den ersten Pol dieser Spannung bildet die Dekonstruktion der Pr{\"a}senz, etwa, im Sinne Jacques Derridas, der Gleichzeitigkeit von Stimme und Ohr beim Sprechen, oder, im Sinne Deborah Eschs, der Live-{\"U}bertragung des Fernsehens. Den anderen Pol jedoch bilden die dennoch sich behauptenden ph{\"a}nomenalen und funktionalen Gleichzeitigkeitserfahrungen und -effekte. Sie umfassen etwa das Miterleben des Spielzuges im Sport, wie Hans Ulrich Gumbrecht es gefasst hat, und zahlreiche andere {\"a}sthetische, insbesondere erhabene Erfahrungen. Am anderen Ende der Skala geh{\"o}ren aber auch Prozesse wie die technische Einsteuerung und Abstimmung von Taktfrequenzen in Regelkreisen und {\"U}bertragungszusammenh{\"a}ngen zu den g{\"u}ltigen Formen effektiver Gleichzeitigkeit. Auch Verdichtungsvorg{\"a}nge wie die mehr oder weniger instantane, ereignisbezogene wie ereignisf{\"o}rmige Bildung und Aufl{\"o}sung von Publika sind derlei relevante Pr{\"a}senzeffekte. Die grundlegende Einsicht in die Gemachtheit und folglich Dekonstruierbarkeit der Gegenwart durch Synchronisierungs- und Desynchronisierungsoperationen jedenfalls widerstreitet nach medienwissenschaftlicher {\"U}berzeugung nicht ihrer Wirklichkeit im Sinne der Wirksamkeit - der lateinischen »actualitas«, als deren deutschsprachige Entsprechung die Scholastik des Mittelalters bei Meister Eckhart den Begriff der »Wirklichkeit« erst einf{\"u}hrte.},
  subject      = {Medienwissenschaft},
  language  = {de}
}
@periodical{OPUS4-4851,
  title     = {Focus Producing Places},
  volume    = {2014},
  number    = {5.2014, Heft 1},
  editor    = {Engell, Lorenz and Siegert, Bernhard},
  publisher = {Felix Meiner Verlag},
  address   = {Hamburg},
  organization    = {Internationales Kolleg f{\"u}r Kulturtechnikforschung und Medienphilosophie},
  issn      = {2366-0767},
  doi       = {10.28937/ZMK-5-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20240507-48519},
  pages     = {171},
  abstract  = {Producing places is a twofold topic. It can refer to places as sites that produce something, that are productive, that have operations unfold, or actions happen, or objects emerge. Or it can refer to the fabrication of places as specific entities themselves. With the extended availability and practicability of digital positioning, locating, and tracking systems, it has become evident that places are not just there, but that they are generated, that they are subject to mediatechnological operations and effects. Nonetheless, and at the same time, the aspect of places as being productive has also attracted considerable attention. Furthermore, in either perspective, a media-theoretical challenge has come up. It invests two different threads within the realm of conceptualizing not only space, but precisely place under conditions of media, both of them leading way back into the evolution of media societies and cultural technologies.},
  subject      = {Medienwissenschaft},
  language  = {de}
}
@article{AdamatzkySchubert,
  author    = {Adamatzky, Andrew and Schubert, Theresa},
  title     = {Slime mold microfluidic logical gates},
  series = {Materials Today},
  journal   = {Materials Today},
  doi       = {10.1016/j.mattod.2014.01.018},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170413-31168},
  pages     = {86 -- 91},
  abstract  = {We demonstrate how logical operations can be implemented in ensembles of protoplasmic tubes of acellular slime mold Physarum polycephalum. The tactile response of the protoplasmic tubes is used to actuate analogs of two- and four-input logical gates and memory devices. The slime mold tube logical gates display results of logical operations by blocking flow in mechanically stimulated tube fragments and redirecting the flow to output tube fragments. We demonstrate how XOR and NOR gates are constructed. We also exemplify circuits of hybrid gates and a memory device. The slime mold based gates are non-electronic, simple and inexpensive, and several gates can be realized simultaneously at sites where protoplasmic tubes merge.},
  subject      = {Physarum polycephalum},
  language  = {en}
}
@article{AmaniBagherzadehRabczuk,
  author    = {Amani, Jafar and Bagherzadeh, Amir Saboor and Rabczuk, Timon},
  title     = {Error estimate and adaptive refinement in Mixed Discrete Least Squares Meshless method},
  series = {Mathematical Problems in Engineering},
  journal   = {Mathematical Problems in Engineering},
  abstract  = {Error estimate and adaptive refinement in Mixed Discrete Least Squares Meshless method},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{AmaniSaboorBagherzadehRabczuk,
  author    = {Amani, Jafar and Saboor Bagherzadeh, Amir and Rabczuk, Timon},
  title     = {Error estimate and adaptive refinement in mixed discrete least squares meshless method},
  series = {Mathematical Problems in Engineering},
  journal   = {Mathematical Problems in Engineering},
  doi       = {10.1155/2014/721240},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170413-31181},
  abstract  = {The node moving and multistage node enrichment adaptive refinement procedures are extended in mixed discrete least squares meshless (MDLSM) method for efficient analysis of elasticity problems. In the formulation of MDLSM method, mixed formulation is accepted to avoid second-order differentiation of shape functions and to obtain displacements and stresses simultaneously. In the refinement procedures, a robust error estimator based on the value of the least square residuals functional of the governing differential equations and its boundaries at nodal points is used which is inherently available from the MDLSM formulation and can efficiently identify the zones with higher numerical errors. The results are compared with the refinement procedures in the irreducible formulation of discrete least squares meshless (DLSM) method and show the accuracy and efficiency of the proposed procedures. Also, the comparison of the error norms and convergence rate show the fidelity of the proposed adaptive refinement procedures in the MDLSM method.},
  subject      = {Elastizit{\"a}t},
  language  = {en}
}
@article{AmiriMillanShenetal.,
  author    = {Amiri, Fatemeh and Mill{\´a}n, D. and Shen, Y. and Rabczuk, Timon and Arroyo, M.},
  title     = {Phase-field modeling of fracture in linear thin shells},
  series = {Theoretical and Applied Fracture Mechanics},
  journal   = {Theoretical and Applied Fracture Mechanics},
  pages     = {102 -- 109},
  abstract  = {Phase-field modeling of fracture in linear thin shells},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{AreiasPintodaCostaRabczuketal.,
  author    = {Areias, Pedro and Pinto da Costa, A. and Rabczuk, Timon and Queiros de Melo, F. J. M. and Dias-da-Costa, D.},
  title     = {An alternative formulation for quasi-static frictional and cohesive contact problems},
  series = {Computational Mechanics},
  journal   = {Computational Mechanics},
  pages     = {807 -- 824},
  abstract  = {An alternative formulation for quasi-static frictional and cohesive contact problems},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{AreiasRabczukBarbosa,
  author    = {Areias, Pedro and Rabczuk, Timon and Barbosa, J.I.},
  title     = {The extended unsymmetric frontal solution for multiple-point constraints},
  series = {Engineering Computations},
  journal   = {Engineering Computations},
  abstract  = {The extended unsymmetric frontal solution for multiple-point constraints},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{AreiasRabczukCamanho,
  author    = {Areias, Pedro and Rabczuk, Timon and Camanho, P.P.},
  title     = {Finite strain fracture of 2D problems with injected anisotropic softening elements},
  series = {Theoretical and Applied Fracture Mechanics},
  journal   = {Theoretical and Applied Fracture Mechanics},
  abstract  = {Finite strain fracture of 2D problems with injected anisotropic softening elements},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{AtaollahiOshkourTalebiSeyedShirazietal.,
  author    = {Ataollahi Oshkour, Azim and Talebi, Hossein and Seyed Shirazi, Seyed Farid and Bayat, Mehdi and Yau, Yat Huang and Tarlochan, Faris and Abu Osman, Noor Azuan},
  title     = {Comparison of various functionally graded femoral prostheses by finite element analysis},
  series = {Scientific World Journal},
  journal   = {Scientific World Journal},
  doi       = {10.1155/2014/807621},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170413-31194},
  abstract  = {This study is focused on finite element analysis of a model comprising femur into which a femoral component of a total hip replacement was implanted. The considered prosthesis is fabricated from a functionally graded material (FGM) comprising a layer of a titanium alloy bonded to a layer of hydroxyapatite. The elastic modulus of the FGM was adjusted in the radial, longitudinal, and longitudinal-radial directions by altering the volume fraction gradient exponent. Four cases were studied, involving two different methods of anchoring the prosthesis to the spongy bone and two cases of applied loading. The results revealed that the FG prostheses provoked more SED to the bone. The FG prostheses carried less stress, while more stress was induced to the bone and cement. Meanwhile, less shear interface stress was stimulated to the prosthesis-bone interface in the noncemented FG prostheses. The cement-bone interface carried more stress compared to the prosthesis-cement interface. Stair climbing induced more harmful effects to the implanted femur components compared to the normal walking by causing more stress. Therefore, stress shielding, developed stresses, and interface stresses in the THR components could be adjusted through the controlling stiffness of the FG prosthesis by managing volume fraction gradient exponent.},
  subject      = {Finite-Elemente-Methode},
  language  = {en}
}
@article{BeexKerfridenRabczuketal.,
  author    = {Beex, L.A.A. and Kerfriden, Pierre and Rabczuk, Timon and Bordas, St{\´e}phane Pierre Alain},
  title     = {Quasicontinuum-based multiscale approaches for plate-like beam lattices experiencing in-plane and out-of-plane deformation},
  series = {Computer Methods in Applied Mechanics and Engineering},
  journal   = {Computer Methods in Applied Mechanics and Engineering},
  abstract  = {Quasicontinuum-based multiscale approaches for plate-like beam lattices experiencing in-plane and out-of-plane deformation},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Buchwald,
  author    = {Buchwald, Anja},
  title     = {Der Einfluss des Kalziums auf die Kondensation von (Alumo-)Silikaten in alkali-aktivierten Bindern},
  doi       = {10.25643/bauhaus-universitaet.2104},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140124-21046},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {35},
  abstract  = {Es werden geopolymere und alkali-aktivierte Bindemittel definiert und ihre prinzipiellen technischen und {\"o}kologischen Eigenschaften diskutiert.},
  subject      = {Bindemittel},
  language  = {de}
}
@article{BudarapuGracieBordasetal.,
  author    = {Budarapu, Pattabhi Ramaiah and Gracie, Robert and Bordas, St{\´e}phane Pierre Alain and Rabczuk, Timon},
  title     = {An adaptive multiscale method for quasi-static crack growth},
  series = {Computational Mechanics},
  journal   = {Computational Mechanics},
  doi       = {10.1007/s00466-013-0952-6},
  pages     = {1129 -- 1148},
  abstract  = {This paper proposes an adaptive atomistic- continuum numerical method for quasi-static crack growth. The phantom node method is used to model the crack in the continuum region and a molecular statics model is used near the crack tip. To ensure self-consistency in the bulk, a virtual atom cluster is used to model the material of the coarse scale. The coupling between the coarse scale and fine scale is realized through ghost atoms. The ghost atom positions are interpolated from the coarse scale solution and enforced as boundary conditions on the fine scale. The fine scale region is adaptively enlarged as the crack propagates and the region behind the crack tip is adaptively coarsened. An energy criterion is used to detect the crack tip location. The triangular lattice in the fine scale region corresponds to the lattice structure of the (111) plane of an FCC crystal. The Lennard-Jones potential is used to model the atom-atom interactions. The method is implemented in two dimensions. The results are compared to pure atomistic simulations; they show excellent agreement.},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{BudarapuGracieYangetal.,
  author    = {Budarapu, Pattabhi Ramaiah and Gracie, Robert and Yang, Shih-Wei and Zhuang, Xiaoying and Rabczuk, Timon},
  title     = {Efficient Coarse Graining in Multiscale Modeling of Fracture},
  series = {Theoretical and Applied Fracture Mechanics},
  journal   = {Theoretical and Applied Fracture Mechanics},
  pages     = {126 -- 143},
  abstract  = {Efficient Coarse Graining in Multiscale Modeling of Fracture},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Cervantes,
  author    = {Cervantes, Juan},
  title     = {Liberal or coordinated Sustainability? Environmental Governance in Different Capitalist Schemes: Germany and the United Kingdom.},
  doi       = {10.25643/bauhaus-universitaet.2334},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20141218-23343},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {179},
  abstract  = {This research represents an effort made towards contribute to the critical thinking from an analysis of the hegemonic neoliberal ideology, which supports the idea of the end of history and the technocratic universalism which in turn implies the imposition of a single model of life, denying, in the name of realism and the end of utopias, any other alternative possibility. This makes it necessary to recover the critical thinking to analyze and understand the reality, thus overcoming the ideological barrier towards claiming that things can be otherwise. It is clear from this research that the discourse of sustainable development has unquestionably transformed the context and content of political activity in Europe. This discourse has exercised and obvious influence in the Governance processes, mainly because it has contributed to the introduction of a new political field, which was then promoted, either explicitly or implicitly by policy-makers, researchers on the field and practitioners during the last three decades. Though it may be bold to affirm that the discourse of sustainable development is the sole driver of these whole set of changes, there is no doubt that it has played a key part in the way in which the governance priorities have been handled in the European continent.},
  language  = {en}
}
@article{ChenNguyenThanhNguyenXuanetal.,
  author    = {Chen, Lei and Nguyen-Thanh, Nhon and Nguyen-Xuan, Hung and Rabczuk, Timon and Bordas, St{\´e}phane Pierre Alain and Limbert, Georges},
  title     = {Explicit finite deformation analysis of isogeometric membranes},
  series = {Computer Methods in Applied Mechanics and Engineering},
  journal   = {Computer Methods in Applied Mechanics and Engineering},
  pages     = {104 -- 130},
  abstract  = {Explicit finite deformation analysis of isogeometric membranes},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ChenSchwingKarlovšeketal.,
  author    = {Chen, Zhen and Schwing, Moritz and Karlovšek, Jurij and Wagner, Norman and Scheuermann, Alexander},
  title     = {Broadband Dielectric Measurement Methods for Soft Geomaterials: Coaxial Transmission Line Cell and Open-Ended Coaxial Probe},
  series = {International Journal of Engineering and Technology},
  volume    = {2014},
  journal   = {International Journal of Engineering and Technology},
  number    = {volume 6, number 5},
  doi       = {10.7763/IJET.2014.V6.728},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20210408-43984},
  pages     = {373 -- 380},
  abstract  = {Broadband dielectric measurement methods based on vector network analyzer coupled with coaxial transmission line cell (CC) and open-ended coaxial probe (OC) are simply reviewed, by which the dielectric behaviors in the frequency range of 1 MHz to 3 GHz of two practical geomaterials are investigated. Kaolin after modified compaction with different water contents is measured by using CC. The results are consistent with previous study on standardized compacted kaolin and suggest that the dielectric properties at frequencies below 100 MHz are not only a function of water content but also functions of other soil state parameters including dry density. The hydration process of a commercial grout is monitored in real time by using OC. It is found that the time dependent dielectric properties can accurately reveal the different stages of the hydration process. These measurement results demonstrate the practicability of the introduced methods in determining dielectric properties of soft geomaterials.},
  subject      = {Impedanzspektroskopie},
  language  = {en}
}
@phdthesis{Chilingaryan,
  author    = {Chilingaryan, Naira},
  title     = {Industrial Heritage: In-Between Memory and Transformation},
  doi       = {10.25643/bauhaus-universitaet.2229},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140624-22291},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Exploratory Research into Transformation Processes of Former Industrial Complexes of Leipziger Baumwollspinnerei (Leipzig) and Mattatoio di Testaccio (Rome); New Meanings of Industrial Heritage Physical manifestations of the Industrial Revolution left a permanent imprint on the complexion of cities. Abandonment that followed the deindustrialization contributed to an estrangement, turning derelict industrial spaces and run-down factories into a ballast to conjure with. At present, industrial heritage management applies flexibility and creativity, partially overcoming the essentially traditional paradigm of heritage preservation. This approach permits sustainable conservation - utilization and integration of disused industrial constructs in the contemporary urban landscape. Being a part of the European cultural stock, industrial heritage is an exciting and unique setting from many perspectives. It is defined and consumed by many markets, ranging from the industrial heritage tourism to the market of special events and festivals. Reused industrial buildings and factories come into view as products of post-industrial societies, fitting to the Western post-industrial (consumer) culture, offering a field of activities that are at an interface between the industrial history and contemporary socio-cultural milieu. Alteration of values, growth of new roles and definitions of industrial heritage, generated by functional restructuring, is a subject which is often left behind the general discussion about sustainable conservation and adaptive reuse of industrial heritage. Yet, in the modified state, industrial heritage is very complex to understand and to define. By conducting a desk and a case study research of former industrial complexes - Leipziger Baumwollspinnerei and Mattatoio di Testaccio, this doctoral thesis aims to identify industrial heritage as a contemporary (post-industrial) concept. Observation of ideas, values and definitions that emerge as a consequence of the transformation and re-conceptualization of industrial heritage are intended to raise awareness and appreciation of industrial heritage in the full richness of its contemporary interpretation.},
  subject      = {Denkmal},
  language  = {en}
}
@phdthesis{Dang,
  author    = {Dang, Trang},
  title     = {Automated Detailing of 4D Schedules},
  doi       = {10.25643/bauhaus-universitaet.2310},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20141006-23103},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {120},
  abstract  = {The increasing success of BIM (Building Information Model) and the emergence of its implementation in 3D construction models have paved a way for improving scheduling process. The recent research on application of BIM in scheduling has focused on quantity take-off, duration estimation for individual trades, schedule visualization, and clash detection. Several experiments indicated that the lack of detailed planning causes about 30\% non-productive time and stacking of trades. However, detailed planning still has not been implemented in practice despite receiving a lot of interest from researchers. The reason is associated with the huge amount and complexity of input data. In order to create a detailed planning, it is time consuming to manually decompose activities, collect and calculate the detailed information in relevant. Moreover, the coordination of detailed activities requires much effort for dealing with their complex constraints. This dissertation aims to support the generation of detailed schedules from a rough schedule. It proposes a model for automated detailing of 4D schedules by integrating BIM, simulation and Pareto-based optimization.},
  subject      = {Simulation},
  language  = {en}
}
@phdthesis{Faschingeder,
  author    = {Faschingeder, Kristian},
  title     = {Das Unheimliche in der Stadt. Die urbane Vision Ludwig Hilberseimers},
  doi       = {10.25643/bauhaus-universitaet.2133},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140226-21333},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {454},
  abstract  = {Ausgangspunkt der Arbeit ist der Aspekt des Unheimlichen in jener Hochhausstadt, deren Entwurf Ludwig Hilberseimer 1924 zum ersten Mal publizierte und die sp{\"a}ter zum Synonym f{\"u}r die Aberrationen modernistischen St{\"a}dtebaus wurde. Daraus geht die Forschungsfrage hervor, wie der Eindruck des Unheimlichen evoziert wird und an welchen Elementen des Entwurfs und/oder der Darstellung dieser festgemacht werden kann. Hier geht es nicht um eine Analyse der Intentionen des Autors der Hochhausstadt, der diese ja als Verbesserung zu den herrschenden Wohnverh{\"a}ltnissen anpries; stattdessen wird eine Reihe von unterschiedlichen interpretatorischen Ans{\"a}tzen gew{\"a}hlt (von Nelson Goodmans Theorie der Notation {\"u}ber Norman Brysons visuelles Zeichensystem bis hin zu Adornos Negativer Dialektik; von der „Bildwissenschaft" bis hin zur „visual theory"). In diesem Zusammenhang werden schließlich auch jene Divergenzen herausgearbeitet, die zwischen der Architektur der Moderne und der Kunst der Avantgarde herrschten. Da aufgrund der Frage nach der Bildwirkung der beiden Perspektiven der Hochhausstadt die {\"A}sthetik des Erhabenen eine besondere Rolle spielt, reicht der Fokus der Arbeit bis in den kunst- und architekturtheoretischen Diskurs des 18. Jahrhundert zur{\"u}ck. Zuletzt m{\"u}ndet die Arbeit in eine Diskussion von Interpretation selbst und der M{\"o}glichkeit einer kritischen Architekturtheorie.},
  subject      = {Architekturtheorie},
  language  = {de}
}
@misc{GarischKutznerOehleretal.,
  author    = {Garisch, Mathias and Kutzner, Eva and Oehler, Vanessa and Patzer, Nicole and Schmeing, Carolin},
  title     = {Analyse von Terminpl{\"a}nen},
  doi       = {10.25643/bauhaus-universitaet.2139},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140317-21392},
  pages     = {61},
  abstract  = {Das Bachelorprojekt „Analyse von Terminpl{\"a}nen" besch{\"a}ftigt sich mit der Analyse der Abh{\"a}ngigkeiten zwischen den unterschiedlichen Vorg{\"a}ngen des Bauablaufs. Die Problematik in der Terminplanerstellung liegt darin, dass ein Terminplan nicht alle Hintergrundinformationen abbildet und es daher zu Projektverz{\"o}gerungen und Absprachefehlern kommen kann. Dieses Bachelorprojekt macht Gebrauch von bereits aufbereiteten Informationen zur genannten Problematik in Form eines vorangegangen Bachelorprojekts und eines Masterprojekts, sowie einer Umfrage des Instituts f{\"u}r Bauwirtschaft der Universit{\"a}t Kassel. In diesem Projekt werden 50 neue und 100 bereits existierende Terminpl{\"a}ne von diversen Unternehmen aus ganz Deutschland analysiert und ausgewertet. Die Analyse der Terminpl{\"a}ne basiert auf gef{\"u}hrten Experteninterviews. Das Interview ber{\"u}cksichtigt Faktoren wie zum Beispiel Darstellungsformen, Detaillierungsgrade, Abh{\"a}ngigkeiten, Vorgangsdauern oder Planungsgrundlagen. Durch die Befragung von m{\"o}glichst vielen Firmen konnte festgestellt werden, dass jeder Terminplanentwickler eine Vorgehensweise entwickelt, nach welcher er arbeitet. Außerdem ist in den Gespr{\"a}chen deutlich geworden, dass das Theorie- Praxis-Gef{\"a}lle sehr groß ist. Das heißt, dass theoretische Modelle aus der Ausbildung an beispielsweise Hochschulen, in der Praxis heutzutage wenig angewandt werden. Nach der Analyse der Terminpl{\"a}ne und Auswertung der Interviews, werden die Daten in eine vom vorangehenden Masterprojekt erstellte Excel-Tabelle eingepflegt. Die vorhandenen Informationen werden dann anhand verschiedenster Diagramme verglichen und ausgewertet.},
  subject      = {Analyse},
  language  = {de}
}
@article{GhasemiBrighentiZhuangetal.,
  author    = {Ghasemi, Hamid and Brighenti, Roberto and Zhuang, Xiaoying and Muthu, Jacob and Rabczuk, Timon},
  title     = {Optimization of fiber distribution in fiber reinforced composite by using NURBS functions},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  pages     = {463 -- 473},
  abstract  = {Optimization of fiber distribution in fiber reinforced composite by using NURBS functions},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{GhasemiBrighentiZhuangetal.,
  author    = {Ghasemi, Hamid and Brighenti, Roberto and Zhuang, Xiaoying and Muthu, Jacob and Rabczuk, Timon},
  title     = {Sequential reliability based optimization of fiber content and dispersion in fiber reinforced composite by using NURBS finite elements},
  series = {Structural and Multidisciplinary Optimization},
  journal   = {Structural and Multidisciplinary Optimization},
  abstract  = {Sequential reliability based optimization of fiber content and dispersion in fiber reinforced composite by using NURBS finite elements},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{GhasemiRafieeZhuangetal.,
  author    = {Ghasemi, Hamid and Rafiee, Roham and Zhuang, Xiaoying and Muthu, Jacob and Rabczuk, Timon},
  title     = {Uncertainties propagation in metamodel-based probabilistic optimization of CNT/polymer composite structure using stochastic multi-scale modeling},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  pages     = {295 -- 305},
  abstract  = {Uncertainties propagation in metamodel-based probabilistic optimization of CNT/polymer composite structure using stochastic multi-scale modeling},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@misc{Gollos,
  type      = {Master Thesis},
  author    = {Gollos, Carolin},
  title     = {Optimierung der Baustellenlogistik f{\"u}r die Ausbauphase eines Großprojektes},
  doi       = {10.25643/bauhaus-universitaet.2285},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140901-22858},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {98},
  abstract  = {Baulogistische Vorg{\"a}nge sind in einer modern angelegten Baustelle der Schl{\"u}ssel zu einer wirtschaftlichen Abwicklung. Dieses gilt nicht nur f{\"u}r den Rohbau, bei dem die sehr enge Verzahnung zwischen den Fertigungs- und Logistikprozessen auf der Baustelle zu beobachten ist, sondern noch mehr f{\"u}r die Ausbauphase, bei der vermeintlich unabh{\"a}ngig voneinander agierende Einzelunternehmen des Ausbaus auf engem Raum miteinander um die jeweils besten Liefer- und Montagebedingungen konkurrieren. Ausgehend von einer aktuellen Großbaustelle in Jena werden verschiedene Varianten einer leistungsf{\"a}higen Baulogistik entwickelt und deren Implementierung auf der Baustelle vorbereitet werden.},
  subject      = {Baulogistik},
  language  = {de}
}
@phdthesis{Goebel,
  author    = {G{\"o}bel, Michael},
  title     = {FASER-KUNSTSTOFF-METALL-GLAS-HYBRIDSYSTEME UND DEREN EINSATZ IN TRAGENDEN KONSTRUKTIONEN},
  doi       = {10.25643/bauhaus-universitaet.1990},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20131217-19909},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {334},
  abstract  = {Die Entwicklung von Hybridtechnologien f{\"u}hrt zu vielen neuartigen und effizienten Anwen-dungen. Hybridtechnologien kommen immer dann zum Einsatz, wenn die ausschließliche Nutzung einer Technologie oder eines Werkstoffs nicht zum gew{\"u}nschten Ergebnis f{\"u}hrt. Dann kann durch Kombination unterschiedlicher Werkstoffe oder Technologien ein System geschaffen werden, das in seiner Konfiguration ein Optimum an Eigenschaften darstellt. Im Bauwesen geht die Entwicklung schon seit jeher in Richtung von immer schlankeren ar-chitektonisch ansprechenden Konstruktionen. In der gegenw{\"a}rtigen Entwicklung erm{\"o}glichen hochtechnologische Kunststoffe und Faserwerkstoffe, wie z. B. Kohlenstofffasern, sehr schlanke, leichte und dennoch hochtragf{\"a}higer Konstruktionen. Der wirtschaftliche Aspekt bei der Entwicklung von Tragsystemen bzw. -strukturen erfordert dabei in fast allen F{\"a}llen eine kosteng{\"u}nstig effiziente Ausbildung und die Optimierung von Trageigenschaften und Kostenfaktoren. Daher besteht oft die Anforderung nach einem Verbundsystem, bei dem unterschiedliche Materialien in der Art miteinander kombiniert werden, dass jeder Werkstoff f{\"u}r eine bestimmte Beanspruchung angeordnet wird und sein Tragf{\"a}higkeitspotenzial optimal aussch{\"o}pft. Im Rahmen dieser Arbeit werden an konkreten Beispielen M{\"o}glichkeiten aufge-zeigt, Hochtechnologiewerkstoffe in effizienter Art und Weise zu nutzen. Der Kunststoff-Faser-Verbundwerkstoff stellt eine M{\"o}glichkeit dar, den als solches nur f{\"u}r d{\"u}nnschichtige Klebverbindungen nutzbaren Klebstoff in seinen Anwendungsm{\"o}glichkeiten zu erweitern. Die Fasern wirken dabei dem mechanischen Schwachpunkt des Klebstoffs, einer nur geringen Zugfestigkeit, effektiv entgegen. Mit faserverst{\"a}rkten Klebstoff k{\"o}nnen Anwendungen realisiert werden, bei denen der Klebstoff auch zur Zugkraft{\"u}bertragung ge-nutzt wird. Zus{\"a}tzlich bieten F{\"u}llstoffe eine M{\"o}glichkeit, die Steifigkeit des Klebstoffs zu stei-gern, was f{\"u}r viele mechanischen Beanspruchungen Vorteile mit sich bringt. Die Kombination aus einem partikelgef{\"u}llten und zus{\"a}tzlich faserverst{\"a}rkten Klebstoff f{\"u}hrt zu einem Ver-bundwerkstoff, der f{\"u}r viele unterschiedliche Anwendungen geeignet ist. Praktische Anwen-dungsm{\"o}glichkeiten finden sich in der Herstellung von Fassadenelementen, wo der faserver-st{\"a}rkte Klebstoff zur Verbindung von Aluminiumhohlprofilen verwendet wird. Weitere Anwen-dungsgebiete erstrecken sich auf die Zugkraftbewehrung von Betontragelementen, bei denen der faserverst{\"a}rkte Klebstoff die Rolle einer Zugbewehrung an der Betonoberfl{\"a}che {\"u}bernimmt. Alu-CFK-Hybridelemente erm{\"o}glichen die Herstellung sehr effizienter Tragsysteme, bei de-nen Gewichtsreduzierung der Tragstruktur und Kosteneinsparungen im Betrieb des Bauwerks gleichermaßen erm{\"o}glicht werden. Die CFK-Lamellen werden dabei in den am st{\"a}rksten l{\"a}ngskraftbeanspruchten Bereichen eines Aluminiumtragelementes angeordnet, wodurch sich die Biegetragf{\"a}higkeit des dann hybriden Tragelements signifikant erh{\"o}ht. In der Folge k{\"o}nnen Gewichtsreduzierungen, verglichen mit herk{\"o}mmlichen Aluminiumtragelementen, erzielt werden. Weiterhin k{\"o}nnen die Querschnittsaußenmaße bei Alu-CFK-Hybridelementen deutlich reduziert werden. In der Folge vereinfachen sich der Transport und die Montage dieser Art Tragwerke, was besonders bei fliegenden Bauten einen wesentlichen Vorteil dar-stellt. Der Einsatz von Glas-Kunststoff-Hybridelementen erm{\"o}glicht die Konstruktion transparenter Tragstrukturen in einer optisch einzigartigen Qualit{\"a}t. Die Konstruktion eines Glas-Kunststoff-Hybridelementes erm{\"o}glicht ein redundant wirkendes Tragverhalten, bei dem die Steifigkeit und optische Qualit{\"a}t des Glases optimal im Tragsystem genutzt werden k{\"o}nnen. Der Kunst-stoff stellt eine Art Sicherheitselement dar und {\"u}bernimmt im Falle eines Glasbruchs die Tragwirkung des Glases. Die Eigenschaft der Vorank{\"u}ndigung eines Systemversagens stellt die Grundlage f{\"u}r eine baupraktische Anwendung des Glas-Kunststoff-Hybridelementes als statisches Tragsystem dar. Durch die Redundanz des Tragverhaltens von Glas-Kunststoff-Hybridelementen ist das Versagen dieser Tragstruktur durch optische oder strukturelle An-zeichen erkennbar und eine Bemessung somit m{\"o}glich. F{\"u}r die mechanische Analyse grundlegender Zusammenh{\"a}nge in Hybridsystemen k{\"o}nnen ingenieurm{\"a}ßige, analytische und numerische Betrachtungen durchgef{\"u}hrt werden. Die in-genieurm{\"a}ßigen Betrachtungen sind sehr gut geeignet, um Absch{\"a}tzungen zu treffen, die in sp{\"a}ter durchgef{\"u}hrten experimentellen Bauteiluntersuchungen oft auch ihre Best{\"a}tigung fan-den. Bei Detailbetrachtungen, wie z. B. der Analyse eines nichtlinearen Spannungsverlaufes in mechanisch beanspruchten Klebfugen, bietet eine numerische Betrachtung mittels FEM Vorteile, da sie eine sehr detaillierte Auswertung in Bereichen mit hohen Spannungsgradien-ten erm{\"o}glicht. Durch die Anwendung der FEM ist es m{\"o}glich, Strukturen in unterschiedlichen Skalierungsbereichen zu analysieren und dabei auch Bereiche einzubeziehen, die f{\"u}r experimentelle Untersuchungen nur sehr schwer zug{\"a}nglich sind. Genaue Kenntnisse {\"u}ber das Materialverhalten der zu analysierenden Stoffe stellen dabei eine wesentliche Grundlage f{\"u}r die Erstellung qualitativ hochwertiger Rechenmodelle dar.},
  subject      = {Klebstoff-Faser-Verbundwerkstoff; Alu-Carbon-Hybridelement; Glas-Kunststoff-Hybridelement; ANSYS; CFK; Klebverbindungen},
  language  = {de}
}
@misc{Habtemariam,
  type      = {Master Thesis},
  author    = {Habtemariam, Abinet Kifle},
  title     = {Numerical Demolition Analysis of a Slender Guyed Antenna Mast},
  doi       = {10.25643/bauhaus-universitaet.4460},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20210723-44609},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {75},
  abstract  = {The main purpose of the thesis is to ensure the safe demolition of old guyed antenna masts that are located in different parts of Germany. The major problem in demolition of this masts is the falling down of the masts in unexpected direction because of buckling problem. The objective of this thesis is development of a numerical models using finite element method (FEM) and assuring a controlled collapse by coming up with different time setups for the detonation of explosives which are responsible for cutting down the cables. The result of this thesis will avoid unexpected outcomes during the demolition processes and prevent risk of collapsing of the mast over near by structures.},
  subject      = {Abbruch},
  language  = {en}
}
@inproceedings{HijaziHusseinKoenig,
  author    = {Hijazi, Ihab Hamzi and Hussein, M. H. and K{\"o}nig, Reinhard},
  title     = {Enabling geo-design: Evaluating the capacity of 3D city model to support thermal design in building},
  series = {9th 3DGeoInfo Conference},
  booktitle = {9th 3DGeoInfo Conference},
  address   = {Dubai, UAE},
  doi       = {10.25643/bauhaus-universitaet.2508},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160118-25089},
  pages     = {4},
  abstract  = {Enabling geo-design: Evaluating the capacity of 3D city model to support thermal design in building},
  subject      = {Informatik},
  language  = {en}
}
@phdthesis{Hildebrandt,
  author    = {Hildebrandt, Paula Marie},
  title     = {Staubaufwirbeln oder die Kunst der Partizipation},
  doi       = {10.25643/bauhaus-universitaet.2158},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140410-21589},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {262},
  abstract  = {Die Dissertation Staubaufwirbeln oder die Kunst der Partizipation stellt die Frage, ob und inwiefern k{\"u}nstlerische Interventionen zur Aktualisierung und Entwicklung demokratischer Teilhabe beitragen k{\"o}nnen. Im Zentrum der Untersuchung stehen sechs Projektgruppen, die experimentelle Freir{\"a}ume gestalten, in denen neue Formen von Demokratielernen, Stadtnutzung, gesellschaftlicher Repr{\"a}sentation und Symbolpolitik erprobt werden. Die Kunst der Partizipation wird in f{\"u}nf Dimensionen beschrieben: Initiative, Kollektivit{\"a}t, Inszenierung, {\"O}ffentlichkeit und Kooperation. Sie erweitert damit das Repertoire demokratischer Beteiligungsformen sowie gegenw{\"a}rtige Kunstbegriffe. Ihre heimliche Relevanz besteht darin, sich immer wieder dem Risiko auszusetzen, von allen Seiten als unzureichend betrachtet zu werden. Demokratie konstituiert sich hier als {\"a}sthetische Erfahrung. Die Kunst besteht darin, die Fl{\"u}chtigkeit demokratischer Teilhabe erfahrbar zu machen, also gestaltbar und ver{\"a}nderbar.},
  subject      = {Stadt},
  language  = {de}
}
@article{IlyaniAkmarLahmerBordasetal.,
  author    = {Ilyani Akmar, A.B. and Lahmer, Tom and Bordas, St{\´e}phane Pierre Alain and Beex, L.A.A. and Rabczuk, Timon},
  title     = {Uncertainty quantification of dry woven fabrics: A sensitivity analysis on material properties},
  series = {Composite Structures},
  journal   = {Composite Structures},
  doi       = {10.1016/j.compstruct.2014.04.014},
  pages     = {1 -- 17},
  abstract  = {Uncertainty quantification of dry woven fabrics: A sensitivity analysis on material properties},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Itam,
  author    = {Itam, Zarina},
  title     = {Numerical Simulation of Thermo-Chemo-Hygro-Mechanical Alkali-Silica Reaction Model in Concrete at the Mesoscale and Macroscale},
  doi       = {10.25643/bauhaus-universitaet.2335},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20141218-23352},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {164},
  abstract  = {Alkali-silica reaction causes major problems in concrete structures due to the rapidity of its deformation which leads to the serviceability limit of the structure being reached well before its time. Factors that affect ASR vary greatly, including alkali and silica content, relative humidity, temperature and porosity of the cementitious matrix,all these making it a very complex phenomenon to consider explicitly. With this in mind, the finite element technique was used to build models and generate expansive pressures and damage propagation due to ASR under the influence of thermo-hygrochemoelastic loading. Since ASR initializes in the mesoscopic regions of the concrete, the accumulative effects of its expansion escalates onto the macroscale level with the development of web cracking on the concrete surface, hence solution of the damage model as well as simulation of the ASR phenomenon at both the macroscale and mesoscale levels have been performed. The macroscale model realizes the effects of ASR expansion as a whole and shows how it develops under the influence of moisture, thermal and mechanical loading. Results of the macroscale modeling are smeared throughout the structure and are sufficient to show how damage due to ASR expansion orientates. As opposed to the mesoscale model, the heterogeneity of the model shows us how difference in material properties between aggregates and the cementitious matrix facilitates ASR expansion. With both these models, the ASR phenomenon under influence of thermo-chemo-hygro-mechanical loading can be better understood.},
  subject      = {Strukturmechanik},
  language  = {en}
}
@article{JamshidianRabczuk,
  author    = {Jamshidian, M. and Rabczuk, Timon},
  title     = {Phase field modelling of stressed grain growth: Analytical study and the effect of microstructural length scale},
  series = {Journal of Computational Physics},
  journal   = {Journal of Computational Physics},
  pages     = {23 -- 35},
  abstract  = {Phase field modelling of stressed grain growth: Analytical study and the effect of microstructural length scale},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Janke,
  author    = {Janke, Lars},
  title     = {Tragverhalten von Betondruckgliedern mit vorgespannter Umschn{\"u}rung aus Formged{\"a}chtnislegierungen, Stahl oder faserverst{\"a}rkten Kunststoffen},
  doi       = {10.25643/bauhaus-universitaet.2326},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20141023-23262},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {180},
  abstract  = {Druckbeanspruchte Bauteile aus Beton k{\"o}nnen mit zugfesten Umschn{\"u}rungen von außen verst{\"a}rkt werden. Mit dieser etablierten Methode konnten axiale Traglast und Duktilit{\"a}t von unzureichend bewehrten St{\"u}tzen bereits verbessert werden. Es wurde jedoch festgestellt, dass der umschn{\"u}rte Betonkern dennoch an Festigkeit verliert. Um die Wirksamkeit der Umschn{\"u}rung zu erh{\"o}hen, wird deshalb vorgeschlagen, das umschn{\"u}rende Material vorzuspannen. Dieser Vorschlag wird insbesondere von der neuen Materialgruppe der Formged{\"a}chtnislegierungen inspiriert, die thermisch vorspannbar sind. Bisher sind die Auswirkungen der Vorspannung einer Umschn{\"u}rung auf das Tragverhalten von Betondruckgliedern kaum untersucht worden. Diese L{\"u}cke wird durch systematische Versuche an Betonzylindern mit vorgespannter Umschn{\"u}rung aus Stahl und kohlenstofffaserverst{\"a}rktem Kunststoff geschlossen. Die Abbildung der Versuchsergebnisse durch geeignete Modelle erm{\"o}glicht auch Aussagen zum Verhalten von Betondruckgliedern mit Umschn{\"u}rungen aus anderen Materialien, beispielsweise Formged{\"a}chtnislegierungen. Um diese in den Berechnungen zu simulieren, wird eine f{\"u}r das Bauwesen infrage kommende eisenbasierte Legierung in separaten axialen Versuchen charakterisiert und thermisch vorgespannt. Die in der vorliegenden Arbeit entwickelten neuen Modelle orientieren sich im Wesentlichen an zwei Zielen: dem Abbilden des mehraxialen Spannungs-Dehnungs-Verhaltens des vorgespannt umschn{\"u}rten Betons und dem Berechnen der Restfestigkeit des Betons. Die durchgef{\"u}hrten Versuche und Parameterstudien auf Basis der Modelle zeigen: Die Vorspannung der Umschn{\"u}rung beeinflusst vor allem die Restfestigkeit des Betons wesentlich. Die gewonnenen Erkenntnisse und neuen Methoden k{\"o}nnen eingesetzt werden, um das Tragverhalten von Betondruckgliedern mit Umschn{\"u}rungen aus Stahl, faserverst{\"a}rktem Kunststoff oder Formged{\"a}chtnislegierungen zu bewerten.},
  subject      = {Beton},
  language  = {de}
}
@article{JiaAnitescuGhorashietal.,
  author    = {Jia, Yue and Anitescu, Cosmin and Ghorashi, Seyed Shahram and Rabczuk, Timon and Dias-da-Costa, D.},
  title     = {Extended Isogeometric Analysis for Material Interface Problems},
  series = {Journal of Applied Mathematics},
  journal   = {Journal of Applied Mathematics},
  abstract  = {Extended Isogeometric Analysis for Material Interface Problems},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{JiangParkRabczuk,
  author    = {Jiang, Jin-Wu and Park, Harold S. and Rabczuk, Timon},
  title     = {MoS2 nanoresonators: intrinsically better than graphene?},
  series = {Nanoscale},
  journal   = {Nanoscale},
  pages     = {3618 -- 3625},
  abstract  = {MoS2 nanoresonators: intrinsically better than graphene?},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{JiangWangRabczuk,
  author    = {Jiang, Jin-Wu and Wang, Bing-Shen and Rabczuk, Timon},
  title     = {Phonon modes in single-walled molybdenum disulphide nanotubes: lattice dynamics calculation and molecular dynamics simulation},
  series = {Nanotechnology},
  journal   = {Nanotechnology},
  abstract  = {Phonon modes in single-walled molybdenum disulphide nanotubes: lattice dynamics calculation and molecular dynamics simulation},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{JoshiHildebrandAloraieretal.,
  author    = {Joshi, Suraj and Hildebrand, J{\"o}rg and Aloraier, Abdulkareem S. and Rabczuk, Timon},
  title     = {Characterization of material properties and heat source parameters in welding simulation of two overlapping beads on a substrate plate},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  doi       = {10.1016/j.commatsci.2012.11.029},
  pages     = {559 -- 565},
  abstract  = {This paper presents several aspects of characterization of welding heat source parameters in Goldak's double ellipsoidal model using Sysweld simulation of welding of two overlapping beads on a substrate steel plate. The overlap percentages ranged from 40\% to 80\% in increments of 10\%. The new material properties of the fused metal were characterized using Weldware and their continuous cooling transformation curves. The convective and radiative heat transfer coefficients as well as the cooling time t8/5 were estimated using numerical formulations from relevant standards. The effects of the simulation geometry and mesh discretization were evaluated in terms of the factor F provided in Sysweld. Eventually, the parameters of Goldak's double ellipsoidal heat source model were determined for the welding simulation of overlapping beads on the plate and the simulated bead geometry, extent of the molten pool and the HAZ were compared with the macrographs of cross-sections of the experimental weldments. The results showed excellent matching, thus verifying this methodology for determination of welding heat source parameters.},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Kalugila,
  author    = {Kalugila, Shubira},
  title     = {HOUSING INTERVENTIONS AND ITS INFLUENCE ON URBAN DEVELOPMENT: Opportunities and Challenges in Mixed Informal Settlements, in Dar es Salaam - Tanzania},
  doi       = {10.25643/bauhaus-universitaet.2293},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140902-22930},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {304},
  abstract  = {Rapid urbanisation that is not accompanied by socio-economic development strains the capacity of local and national governments to provide even basic services such as shelter. Informal settlements i.e. settlements not built or developed according to the formal regulations have become a solution to many urban dwellers in developing countries. In Tanzania informal settlements accommodate people from low, middle and high income groups. The study explores the nature of potentials and challenges posed by the existence of mixed socio-economic groups in informal settlements, including an assessment of what can be done to optimise utilisation of potentials and mitigation of conflicts. Using a case study strategy, the study was conducted in Dar es Salaam city focusing on Makongo mixed informal settlement. The results show that mixed informal settlements are as a result of several factors including uncoordinated energies of people. The urban development forces that bring change in the development of the city are stronger than the public states capacity to coordinate and manage them. Informal settlements also offer user-friendly land tenure, flexibility in house construction and proximity to livelihoods. Other factors include the nature of socio-economic living patterns and extension of urban boundaries. Community members operate using social norms. Advantages of mixed informal settlements include availability of plots according to needs and affordability while a disadvantage is, people of different socio-economic groups perceive problems differently. For policies to be effective, their formulation should be derived from what is happening on the ground i.e. addressing informal settlements according to their heterogeneity. Moreover, empowered local authorities can assist in implementing national development plans; also actors in land development including government institutions, non-governmental institutions, financial institutions, private sector, professionals, political leaders, research institutions, policy-makers and training institutions need to recognise, understand and respect each other's roles, and pull resources together to minimise problems related to informality in land development; utilise potentials and minimise challenges in mixed informal settlements in Dar es Salaam. Key words: Informal settlements, land development, urbanisation},
  subject      = {Verst{\"a}dterung},
  language  = {en}
}
@misc{Kavrakov,
  type      = {Master Thesis},
  author    = {Kavrakov, Igor},
  title     = {Structural Optimization of Composite Cross-Sections and Elements using Energy Methods},
  doi       = {10.25643/bauhaus-universitaet.3959},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190815-39593},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {96},
  abstract  = {Structural optimization has gained considerable attention in the design of structural engineering structures, especially in the preliminary phase. This study introduces an unconventional approach for structural optimization by utilizing the Energy method with Integral Material Behavior (EIM), based on the Lagrange's principle of minimum potential energy. An automated two-level optimization search process is proposed, which integrates the EIM, as an alternative method for nonlinear structural analysis, and the bilevel optimization. The proposed procedure secures the equilibrium through minimizing the potential energy on one level, and on a higher level, a design objective function. For this, the most robust strategy of bilevel optimization, the nested method is used. The function of the potential energy is investigated along with its instabilities for physical nonlinear analysis through principle examples, by which the advantages and limitations using this method are reviewed. Furthermore, optimization algorithms are discussed. A numerical fully functional code is developed for nonlinear cross section, element and 2D frame analysis, utilizing different finite elements and is verified against existing EIM programs. As a proof of concept, the method is applied on selected examples using this code on cross section and element level. For the former one a comparison is made with standard procedure, by employing the equilibrium equations within the constrains. The validation of the element level was proven by a theoretical solution of an arch bridge and finally, a truss bridge is optimized. Most of the principle examples are chosen to be adequate for the everyday engineering practice, to demonstrate the effectiveness of the proposed method. This study implies that with further development, this method could become just as competitive as the conventional structural optimization techniques using the Finite Element Method.},
  subject      = {Strukturoptimierung},
  language  = {en}
}
@misc{Kleiner,
  author    = {Kleiner, Florian},
  title     = {Charakterisierung des Einflusses der W{\"a}rmeleitf{\"a}higkeit von Kompositmaterialien auf die thermochemische W{\"a}rmespeicherung},
  doi       = {10.25643/bauhaus-universitaet.4496},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20210921-44968},
  pages     = {86},
  abstract  = {Mit dem stetigen Steigen des Anteils an erneuerbaren Energien wird der Einsatz von Speichern immer bedeutsamer. Neben der Speicherung elektrischer Energie ist die Speicherung anfallender solarer bzw. industrieller W{\"a}rme eine wichtige Herausforderung. Aufgrund der hohen Energiespeicherdichte kommt dabei der thermochemischen W{\"a}rmespeicherung eine entscheidende Rolle zu. Eine Klasse dieser Speichermaterialien bilden Kompositmaterialien, die aus einer offenporigen Matrix und einem darin eingelagerten Salzhydrat bestehen. Ausschlaggebend f{\"u}r eine hohe Speicherdichte ist bei dieser Materialklasse der schnelle Abtransport der durch Wasserdampfsorption entstandenen W{\"a}rme. Das entscheidende Kriterium f{\"u}r eine Anwendung als Speichermaterial ist somit die W{\"a}rmeleitf{\"a}higkeit des Materials. Im Rahmen der Arbeit wurden deshalb die W{\"a}rmeleitf{\"a}higkeiten ausgew{\"a}hlter Salze (NaCl, MgSO4 und ZnSO4) mit verschiedenen Kristallwassergehalten, Tr{\"a}germaterialien wie Aktivkohle (Pellets und Pulver) und Zeolitpulver und an den daraus hergestellten Kompositmaterialien untersucht. Ziel war es außerdem Aussagen zu einer g{\"u}nstigen Materialkombination aus offenporigem Tr{\"a}germaterial und Salzhydrat sowie eines geeigneten Porenf{\"u}llgrades zu treffen und Ans{\"a}tze f{\"u}r die Modellierung der W{\"a}rmeleitf{\"a}higkeit der Komposite zu liefern.},
  subject      = {W{\"a}rmespeicher},
  language  = {de}
}
@article{KoenigKnecht,
  author    = {K{\"o}nig, Reinhard and Knecht, Katja},
  title     = {Comparing two evolutionary algorithm based methods for layout generation: Dense packing versus subdivision},
  series = {Artificial Intelligence for Engineering Design, Analysis and Manufacturing},
  journal   = {Artificial Intelligence for Engineering Design, Analysis and Manufacturing},
  pages     = {285 -- 299},
  abstract  = {We present and compare two evolutionary algorithm based methods for rectangular architectural layout generation: dense packing and subdivision algorithms.We analyze the characteristics of the two methods on the basis of three floor plan sce- narios. Our analyses include the speed with which solutions are generated, the reliability with which optimal solutions can be found, and the number of different solutions that can be found overall. In a following step, we discuss the methods with respect to their different user interaction capabilities. In addition, we show that each method has the capability to generate more complex L-shaped layouts. Finally,we conclude that neither of the methods is superior but that each of them is suitable for use in distinct application scenarios because of its different properties.},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{KoenigSchneiderHijazietal.,
  author    = {K{\"o}nig, Reinhard and Schneider, Sven and Hijazi, Ihab Hamzi and Li, Xin and Bielik, Martin and Schmitt, Gerhard and Donath, Dirk},
  title     = {Using geo statistical analysis to detect similarities in emotional responses of urban walkers to urban space},
  series = {Sixth International Conference on Design Computing and Cognition (DCC14)},
  booktitle = {Sixth International Conference on Design Computing and Cognition (DCC14)},
  doi       = {10.25643/bauhaus-universitaet.2514},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25146},
  pages     = {1},
  abstract  = {Using geo statistical analysis to detect similarities in emotional responses of urban walkers to urban space},
  subject      = {St{\"a}dtebau},
  language  = {en}
}
@article{KoenigStandfestSchmitt,
  author    = {K{\"o}nig, Reinhard and Standfest, Matthias and Schmitt, Gerhard},
  title     = {Evolutionary multi-criteria optimization for building layout planning: Exemplary application based on the PSSA framework},
  series = {32nd eCAADe Conference - Volume 2},
  journal   = {32nd eCAADe Conference - Volume 2},
  editor    = {Thompson, Emine Mine},
  doi       = {10.25643/bauhaus-universitaet.2513},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25139},
  pages     = {567 -- 574},
  abstract  = {When working on urban planning projects there are usually multiple aspects to consider. Often these aspects are contradictory and it is not possible to choose one over the other; instead, they each need to be fulfilled as well as possible. Planners typically draw on past experience when subjectively prioritising which aspects to consider with which degree of importance for their planning concepts. This practice, although understandable, places power and authority in the hands of people who have varying degrees of expertise, which means that the best possible solution is not always found, because it is either not sought or the problem is regarded as being too complex for human capabilities. To improve this situation, the project presented here shows the potential of multi-criteria optimisation algorithms using the example of a new housing layout for an urban block. In addition it is shown, how Self-Organizing-Maps can be used to visualise multi-dimensional solution spaces in an easy analysable and comprehensible form.},
  subject      = {Architektur},
  language  = {en}
}
@techreport{KoenigTapiasKoenig,
  author    = {K{\"o}nig, Reinhard and Tapias, Estefania and K{\"o}nig, Gerhard},
  title     = {Digital Urban Simulation: Documentation of the teaching results from the fall semester 2014},
  organization    = {ETH Zurich},
  doi       = {10.25643/bauhaus-universitaet.2512},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25125},
  pages     = {102},
  abstract  = {Documentation of the teaching results from the fall semester 2014},
  subject      = {St{\"a}dtebau},
  language  = {en}
}
@techreport{KoenigTapiasSchmitt,
  author    = {K{\"o}nig, Reinhard and Tapias, Estefania and Schmitt, Gerhard},
  title     = {New Methods in Urban Analysis and Simulation: Documentation of the teaching results from the spring semester 2014},
  doi       = {10.25643/bauhaus-universitaet.2515},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25154},
  pages     = {62},
  abstract  = {Documentation of the teaching results from the spring semester 2014 at ETH Zurich},
  subject      = {St{\"a}dtebau},
  language  = {en}
}
@article{LeNguyenLudwig,
  author    = {Le, Ha Thanh and Nguyen, Sang Thanh and Ludwig, Horst-Michael},
  title     = {A Study on High Performance Fine-Grained Concrete Containing Rice Husk Ash},
  series = {International Journal of Concrete Structures and Materials},
  journal   = {International Journal of Concrete Structures and Materials},
  doi       = {10.1007/s40069-014-0078-z},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170425-31477},
  pages     = {301 -- 307},
  abstract  = {Rice husk ash (RHA) is classified as a highly reactive pozzolan. It has a very high silica content similar to that of silica fume (SF). Using less-expensive and locally available RHA as a mineral admixture in concrete brings ample benefits to the costs, the technical properties of concrete as well as to the environment. An experimental study of the effect of RHA blending on workability, strength and durability of high performance fine-grained concrete (HPFGC) is presented. The results show that the addition of RHA to HPFGC improved significantly compressive strength, splitting tensile strength and chloride penetration resistance. Interestingly, the ratio of compressive strength to splitting tensile strength of HPFGC was lower than that of ordinary concrete, especially for the concrete made with 20 \% RHA. Compressive strength and splitting tensile strength of HPFGC containing RHA was similar and slightly higher, respectively, than for HPFGC containing SF. Chloride penetration resistance of HPFGC containing 10-15 \% RHA was comparable with that of HPFGC containing 10 \% SF.},
  subject      = {Hochfester Beton},
  language  = {en}
}
@article{LinnowNiermannBonatzetal.,
  author    = {Linnow, Kirsten and Niermann, Michael and Bonatz, Dennis and Posern, Konrad and Steiger, Michael},
  title     = {Experimental Studies of the Mechanism and Kinetics of Hydration Reactions},
  series = {Energy Procedia},
  journal   = {Energy Procedia},
  doi       = {10.1016/j.egypro.2014.02.046},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170425-31484},
  pages     = {394 -- 404},
  abstract  = {The mechanism and the kinetics of hydration reactions are important for the application of a salt hydrate as a thermochemical heat storage material. MgSO4·H2O and Na2SO4 were chosen in this study because they are both promising candidates for such an application. Considering that the hydration of these salts yields MgSO4·7H2O and Na2SO4·10H2O as the reaction products, the maximum overall heat effect can be calculated from the heat of condensation of water vapor (44 kJ mol-1) and the heats of hydration of 75 kJ·mol-1 (for MgSO4·H2O) and 81 kJ mol-1 (for Na2SO4). Based on the densities of the two hydrated phases, this results in the very high theoretical energy densities of 2.3 GJ·m-3 and 2.4 GJ·m-3, respectively, for MgSO4·7H2O and Na2SO4·10H2O. Not only the energy density is important for the dimensioning of a storage system, but also the kinetics of hydration reactions play a major role for the application as storage material. In the present study, hydration reactions under varying climatic conditions were investigated by using water vapor sorption measurements and in-situ Raman microscopy. Using the phase diagrams, it can be clearly shown that the mechanism and the kinetics depend on the climatic conditions. Below the deliquescence humidity of the lower hydrated phase the hydration proceeds as solid state reaction, whilst above the deliquescence humidity a through solution mechanism takes place.},
  subject      = {W{\"a}rmespeicherung},
  language  = {en}
}
@article{LuuMartinezRodrigoZabeletal.,
  author    = {Luu, M. and Martinez-Rodrigo, M.D. and Zabel, Volkmar and K{\"o}nke, Carsten},
  title     = {H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridges},
  series = {Journal of Sound and Vibration},
  journal   = {Journal of Sound and Vibration},
  pages     = {2421 -- 2442},
  abstract  = {H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridges},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Mai,
  author    = {Mai, Luu},
  title     = {Structural Control Systems in High-speed Railway Bridges},
  issn      = {1610-7381},
  doi       = {10.25643/bauhaus-universitaet.2339},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20141223-23391},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {147},
  abstract  = {Structural vibration control of high-speed railway bridges using tuned mass dampers, semi-active tuned mass dampers, fluid viscous dampers and magnetorheological dampers to reduce resonant structural vibrations is studied. In this work, the addressed main issues include modeling of the dynamic interaction of the structures, optimization of the parameters of the dampers and comparison of their efficiency. A new approach to optimize multiple tuned mass damper systems on an uncertain model is proposed based on the H-infinity optimization criteria and the DK iteration procedure with norm-bounded uncertainties in frequency domain. The parameters of tuned mass dampers are optimized directly and simultaneously on different modes contributing significantly to the multi-resonant peaks to explore the different possible combinations of parameters. The effectiveness of the present method is also evaluated through comparison with a previous method. In the case of semi-active tuned mass dampers, an optimization algorithm is derived to control the magnetorheological damper in these semi-active damping systems. The use of the proposed algorithm can generate various combinations of control gains and state variables. This can lead to the improvement of the ability of MR dampers to track the desired control forces. An uncertain model to reduce detuning effects is also considered in this work. Next, for fluid viscous dampers, in order to tune the optimal parameters of fluid viscous dampers to the vicinity of the exact values, analytical formulae which can include structural damping are developed based on the perturbation method. The proposed formulae can also be considered as an improvement of the previous analytical formulae, especially for bridge beams with large structural damping. Finally, a new combination of magnetorheological dampers and a double-beam system to improve the performance of the primary structure vibration is proposed. An algorithm to control magnetorheological dampers in this system is developed by using standard linear matrix inequality techniques. Weight functions as a loop shaping procedure are also introduced in the feedback controllers to improve the tracking ability of magnetorheological damping forces. To this end, the effectiveness of magnetorheological dampers controlled by the proposed scheme, along with the effects of the uncertain and time-delay parameters on the models, are evaluated through numerical simulations. Additionally, a comparison of the dampers based on their performance is also considered in this work.},
  subject      = {High-speed railway bridge},
  language  = {en}
}