@inproceedings{Oetsch,
  author    = {{\"O}tsch, Silke},
  title     = {EXPLAINING JUNKSPACE},
  editor    = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd},
  publisher = {Verlag der Bauhaus-Universit{\"a}t},
  address   = {Weimar},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  isbn      = {978-3-86068-417-7},
  doi       = {10.25643/bauhaus-universitaet.3067},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30676},
  pages     = {8},
  abstract  = {Dr. Silke {\"O}tsch is currently working on a research project on the role of architects as intermediaries in financialization founded by the Austrian Research Found (FWF) at the Department of Sociology at the University of Innsbruck. She worked as scientific employee at the Institute of Construction and Design at the Innsbruck University, as lecturer at the Institute for Architecture Theory at the University of Innsbruck (Austria), in the architectural offices of Arets Architekten in Maastricht as well as Haid und Partner in N{\"u}rnberg and for Attac Germany. Silke {\"O}tsch received her doctoral degree at the Bauhaus-University Weimar and studied architecture in Weimar and Paris. She published books in the field of architecture theory with the title "Stripping las Vegas" (with K. Jaschke) and "{\"U}berw{\"a}ltigen und Schmeicheln", and articels in the review GAM and others, and published in the field of political economy, among others the book "Das Casino schließen" (together with T. Sauer and P. Wahl) on the financial crisis and "R{\"a}ume der Offshore-Welt" (together with Celia Di Pauli), which is a publication on concrete spaces of tax havens and offshore centres in Europe and their implications. Her main research interest is globalization and financial architecture.},
  subject      = {Architekturtheorie},
  language  = {en}
}
@phdthesis{Oetsch2004,
  author    = {{\"O}tsch, Silke},
  title     = {{\"U}berw{\"a}ltigen und schmeicheln. Der physiologische, symbolische und ganzheitliche K{\"o}rper in der Architektur.},
  doi       = {10.25643/bauhaus-universitaet.659},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20050727-6926},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Der menschliche K{\"o}rper ist Bezugspunkt von repr{\"a}sentativen Str{\"o}mungen der zeitgen{\"o}ssischen Architektur, so lautet die Hauptthese der Dissertation. Bislang wurde das zeitgen{\"o}ssische architekturimmanente Konzept des K{\"o}rpers gr{\"o}ßtenteils selektiv und anhand wenig repr{\"a}sentativer Beispiele von der Kritik behandelt: Ein auf physiologische Gesichtspunkte reduzierter K{\"o}rper interagiert mit Bauten der klassischen Moderne oder neuen Medientechnologien. Eine umfassende Besch{\"a}ftigung mit theoretischen Konzepten des K{\"o}rpers und mit dem Fallbeispiel der zeitgen{\"o}ssischen Hotel- und Kasinoarchitektur in Las Vegas zeigt, dass der Begriff des K{\"o}rpers komplexer geworden ist, womit der Bezug zum K{\"o}rper weniger augenf{\"a}llig erscheint. Der Ansatz der Ph{\"a}nomenologie, Erkl{\"a}rungsmuster durch eine Hinwendung zum K{\"o}rper zu erhalten wird von verschiedenen Autoren in Frage gestellt. Wenn die Grenzen von K{\"o}rper bzw. Leib und Umwelt nicht mehr zu bestimmen sind, tauge der Begriff nicht als Letztbegr{\"u}ndung. Diese Kritik kann entkr{\"a}ftet werden, wenn auf das Modell der animate form der Philosophin Sheets-Johnstone zur{\"u}ckgegriffen wird. Dieses Konzept f{\"u}hrt {\"u}ber Merleau-Pontys K{\"o}rperbegriff hinaus, der Sheets-Johnstones Aussage nach abstrakt sei. Insbesondere eine Hinwendung zum taktil-kin{\"a}sthetischen K{\"o}rper liefert neue Perspektiven. Damit ist es sinnvoll, Architektur in ihrer Beziehung zum K{\"o}rper zu beurteilen, weil der K{\"o}rper definierbar und eingrenzbar ist. Anhand des Fallbeispiels der Hotel- und Kasinoarchitektur von Las Vegas kann aufzeigt werden, in welcher Weise sich Planer heute auf den K{\"o}rper beziehen. Architektur geht in einem Megamedium auf, umgesetzt mit unterschiedlichen Techniken der Umweltgestaltung. Sowohl die Quantit{\"a}t als auch die Qualit{\"a}t der eingesetzten Reize nimmt zu. Dabei werden vor allem Reize eingesetzt, die tendenziell unbewusst wahrgenommen werden. Neben der Abstimmung auf die Sinne und die physische Beschaffenheit wird die symbolische Pr{\"a}gung des K{\"o}rpers beachtet. W{\"u}nsche und Vorstellungen der Nutzer werden {\"u}ber Zielgruppenanalysen ermittelt und finden ihre Entsprechung in semiotischen Architekturelementen. Diese werden so gestaltet, dass der Nutzer den semiotischen Gehalt zugleich sinnlich erf{\"a}hrt. Dieses Konzept des K{\"o}rpers wird als ganzheitlicher K{\"o}rper bezeichnet. Aufschlussreich ist ein Vergleich mit Vorstellungen des K{\"o}rpers vorausgehender Phasen, so z.B. dem Modell, das sich aus Scott Brown, Venturi und Izenours Buch Learning from Las Vegas ableiten l{\"a}sst, und das sich ebenso aus Texten und Bauten von Zeitgenossen wie Lynch, Norberg-Schulz und Kahn herausarbeiten l{\"a}sst. {\"U}ber die Besch{\"a}ftigung der Architekturtheoretiker mit der Sinneswahrnehmung entsteht ein Bewusstsein f{\"u}r den Einfluss des Symbolischen, das eine subjektive, durch das soziale und kulturelle Umfeld gepr{\"a}gte Wahrnehmung hervorbringt. Der K{\"o}rper ist eingebettet in symbolische Systeme wie Konventionen und Traditionen, die sein Handeln bestimmen. Dahingegen beziehen sich Vertreter der klassischen Moderne haupts{\"a}chlich auf die physiologischen Eigenschaften des K{\"o}rpers, seine Abmessungen und Bewegungsabl{\"a}ufe, wie Texte, Bauten und Menschmodelle z.B. von Meyer, Neutra, Le Corbusier und Neufert zeigen. Es f{\"a}llt auf, dass in Texten {\"u}ber Architektur von Las Vegas h{\"a}ufig Begriffe vorkommen, die zugleich zentrale Termini der Ph{\"a}nomenologie sind, wie Atmosph{\"a}re und der englische Begriff experience. Es zeigt sich, dass sich die Bedeutungen der philosophischen Termini in der Architektur des Fallbeispiel widerspiegelt. Anders als die vorschnelle Etikettierung der Architekturstr{\"o}mung als „Erlebnisarchitektur" suggeriert, bezieht sich der Begriff experience auf eine Ausrichtung an der Erfahrung. Diese ist das Resultat der langfristigen Pr{\"a}gung einer konkreten Nutzergruppe durch den in der Umwelt agierenden und durch seine symbolische Pr{\"a}gung beeinflussten K{\"o}rper. Die Erfahrung impliziert das Erlebnis, als kurzfristige Interaktion von K{\"o}rper und Umwelt. Am Fallbeispiel kann außerdem gezeigt werden, dass Techniken zur Schaffung von Atmosph{\"a}ren eingesetzt werden. In Anlehnung an den Philosophen B{\"o}hme kennzeichnen sich Atmosph{\"a}ren durch eine besondere N{\"a}he von Architektur und K{\"o}rper. Die Tatsache, dass Architekten gezielt Atmosph{\"a}ren schaffen, die gemeinhin nicht der Str{\"o}mung der „Erlebnisarchitekur zugerechnet werden, weist darauf hin, dass sich das Leitbild des ganzheitlichen K{\"o}rpers in unterschiedlichen Kontexten findet. Im Gegensatz zu Thesen Eisenmans oder Jamesons, die eine Entfremdung von K{\"o}rper und Raum bzw. das Ende des anthropozentrischen Weltbilds feststellen, propagieren Planer wie Jerde die Herstellung von Architektur, die Nutzer und Umwelt in einer {\"u}bergeordneten Ganzheit vereint. Ganzheit kann aber trotz feinerer Abstimmung auf den K{\"o}rper nur grenzwertig erreicht werden, da Nutzer nicht vollst{\"a}ndig erfasst werden k{\"o}nnen, sich die Planungen auf bestimmte Zielgruppen beschr{\"a}nken und die Interessen von Planer und Nutzer verschieden sind.},
  subject      = {K{\"o}rper},
  language  = {de}
}
@inproceedings{Oestman1997,
  author    = {{\"O}stman, L.},
  title     = {Knowledge Elicitation through a Pragmatic Inquiry},
  doi       = {10.25643/bauhaus-universitaet.454},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4547},
  year      = {1997},
  abstract  = {This is a paper about knowledge in design and how to elicit knowledge from design processes. The paper is a preparation for an empirical study of interaction in the design process. Reasonings of three authors - Sch{\"o}n, Broadbent and Lundequist - on design processes is presented. They all have a pragmatic perspective in common, and regard the process as an activity without a definite form. Design is seen as an activity of creating models of forms and shapes, by addressing expert knowledge ­ in a dialogic way ­ to problematic situations. Due to the pragmatic approach I find the pragmatist Dewey´s understanding of knowledge and elecitation of knowledge appropiate for studying design processes. According to him it is possible to build up objectified descriptions of experiences, also of such, which are based on experiences of emotional and intuitive nature. There need not be a definite border, which separates tacit knowledge from explicit knowledge - when it comes to the question of the possibility of verbal descriptions. Tacit knowledge is possible to articulate within pragmatic thinking. The conclusion is, that it is possible to study the tacit knowledge of design processes, and get some qualitative insights useful for theory building. A study of design processes can look at three different forms of knowledge. It appears as a pre­cognitive understanding of the design situation, as integrated in the design activity - seeing the situation as something known - and in the process of creating something new.},
  subject      = {Entwurf},
  language  = {en}
}
@article{EirinhevskyDikhnyakEirichevskyetal.1997,
  author    = {{\^E}irinhevsky, V. V. and D{\^i}khnyak, B. M. and {\^E}irichevsky, R. V. and {\^E}{\^i}zub, Y. G.},
  title     = {Determination of the Temperature of Dissipative Warming and Parameters of Fracture in Elastomers with using of Singular Finite Elements},
  doi       = {10.25643/bauhaus-universitaet.547},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5471},
  year      = {1997},
  abstract  = {For modeling of singular fields of stresses and deformations in elasters with a crack is offered to use of three-dimesional a special finite element. Weak compessible of elasters is taken into account on the basis of threefold approximation of fields of displacements, deformations and function of volume change. At intensive cyclic loading of the elastomer constructions with a crack it is necessary to take into account warming and large deformations at the crack top. The stress-deformed state elasters with a crack is determined from the decision of a nonlinear problem by a modified method Newton-Kantorovich. Account stress intensity factors for a rectangular plate with a various arrangement of a through crack is executed. Process of development of a surface crack and dissipative warming in prismatic a element of shift is investigated.},
  subject      = {Elastomer},
  language  = {en}
}
@misc{Zuendel2011,
  author    = {Z{\"u}ndel, Jana},
  title     = {Das News-Network Al Jazeera zwischen Globalit{\"a}t und Lokalit{\"a}t},
  doi       = {10.25643/bauhaus-universitaet.1394},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111116-15660},
  year      = {2011},
  abstract  = {Der arabische Fernsehsender Al Jazeera gilt als Ph{\"a}nomen im globalen Nachrichtengesch{\"a}ft. Gerade das Jahr 2011, als der Arabische Fr{\"u}hling die Nachrichten dominierte, hat die weltweite Relevanz des selbsternannten News-Networks einmal mehr unterstrichen. An der t{\"a}glichen Berichterstattung und den innovativen Formaten des News-Networks schlagen sich bemerkenswerte {\"o}konomische und medienkulturelle Entwicklungen nieder, die Thema dieser Arbeit sein sollen. Sie befasst sich mit der Konzeption Al-Jazeeras als Unternehmen einerseits und als (Massen-)Medium andererseits, um seinen Beitrag zum Globalisierungsprozess und den damit einhergehenden sozio-kulturellen Ver{\"a}nderungen zu diskutieren.},
  subject      = {Al-Jazeera},
  language  = {de}
}
@inproceedings{ZwoelferThomasSchinketal.2004,
  author    = {Zw{\"o}lfer, Michael and Thomas, Peter and Schink, Claus-J{\"u}rgen and Koch, Volker},
  title     = {Life cycle optimized system solutions for densified housing with massive wood technology},
  doi       = {10.25643/bauhaus-universitaet.98},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-980},
  year      = {2004},
  abstract  = {The objective of the joint project 'Life cycle optimised system solutions for densified housing with massive wood technology', short form Basys, was the development and application of an open building system for sustainable construction in a virtual enterprise. Four partners coming from building economy and a university institute developed the building system in a comprehensive planning process. By applying massive wood technology, most requirements of densified housing can be met and individual buildings can be produced on demand.},
  subject      = {Lebenszyklus <Wirtschaft>},
  language  = {en}
}
@article{Zrost1979,
  author    = {Zrost, Sibylle},
  title     = {Die Herausbildung sch{\"o}pferischer F{\"a}higkeiten am Bauhaus : eine Betrachtung aus hochschulp{\"a}dagogischer Sicht},
  doi       = {10.25643/bauhaus-universitaet.894},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8948},
  year      = {1979},
  abstract  = {Wissenschaftliches Kolloquium vom 27. bis 29. Juni 1979 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: '60 Jahre Gr{\"u}ndung Bauhaus'},
  subject      = {Bauhaus},
  language  = {de}
}
@inproceedings{ZolotovAkimovSidorov,
  author    = {Zolotov, Alexander B. and Akimov, Pavel and Sidorov, Vladimir},
  title     = {DISCRETE-CONTINUAL BOUNDARY ELEMENT METHODS OF ANALYSIS FOR TWO-DIMENSIONAL AND THREE-DIMENSIONAL STRUCTURES},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3041},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30419},
  pages     = {22},
  abstract  = {The aim of this paper is to present so-called discrete-continual boundary element method (DCBEM) of structural analysis. Its field of application comprises buildings constructions, structures and also parts and components for the residential, commercial and un-inhabitant structures with invariability of physical and geometrical parameters in some dimensions. We should mention here in particular such objects as beams, thin-walled bars, strip foundations, plates, shells, deep beams, high-rise buildings, extensional buildings, pipelines, rails, dams and others. DCBEM comes under group of semianalytical methods. Semianalytical formulations are contemporary mathematical models which currently becoming available for realization due to substantial speed-up of computer productivity. DCBEM is based on the theory of the pseudodifferential boundary equations. Corresponding pseudodifferential operators are discretely approximated using Fourier analysis or wavelet analysis. The main DCBEM advantages against the other methods of the numerical analysis is a double reduction in dimension of the problem (discrete numerical division applied not to the full region of the interest but only to the boundary of the region cross section, as a matter of fact one is solving an one-dimensional problem with the finite step on the boundary area of the region), one has opportunities to carrying out very detailed analysis of the specific chosen zones, simplified initial data preparation, simplistic and adaptive algorithms. There are two methods to define and conduct DCBEM analysis developed - indirect (IDCBEM) and direct (DDCBEM), thus indirect like in boundary element method (BEM) applied and used little bit more than direct.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{ZolotovAkimov2003,
  author    = {Zolotov, Alexander B. and Akimov, Pavel},
  title     = {Discrete-continual Finite Element Method of Analysis for Three-dimensional Curvilinear Structures},
  doi       = {10.25643/bauhaus-universitaet.384},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3848},
  year      = {2003},
  abstract  = {This paper is devoted to discrete-continual finite element method (DCFEM) of analysis for three-dimensional curvilinear structures. Operational and variational formulations of the problem in the ring coordinate system are presented. The discrete-continual design model for structures with constant physical and geometrical parameters in longitudinal direction is offered on the basis of so-called curvilinear discrete-continual finite elements. Element coordinate system, approximation of nodal unknowns, construction of element nodal load vector are under consideration. Element system of differential equations is formulated with use of special generalized block-structured stiffness matrix of discrete-continual finite element. Local differential relations are formulated. Resultant multipoint boundary problem for system of ordinary differential equations is given. Method of analytical solution of multipoint boundary problems in structural analysis is offered as well. Its major peculiarities include universality, computer-oriented algorithm involving theory of distributions, computational stability, optimal conditionality of resultant systems, partial Jordan decomposition of matrix of coefficients, eliminating necessity of calculation of root vectors. Brief information concerning developed software is provided.},
  subject      = {Raumtragwerk},
  language  = {de}
}
@unpublished{ZollmannBimber2007,
  author    = {Zollmann, Stefanie and Bimber, Oliver},
  title     = {Imperceptible Calibration for Radiometric Compensation},
  doi       = {10.25643/bauhaus-universitaet.809},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-8094},
  year      = {2007},
  abstract  = {We present a novel multi-step technique for imperceptible geometry and radiometry calibration of projector-camera systems. Our approach can be used to display geometry and color corrected images on non-optimized surfaces at interactive rates while simultaneously performing a series of invisible structured light projections during runtime. It supports disjoint projector-camera configurations, fast and progressive improvements, as well as real-time correction rates of arbitrary graphical content. The calibration is automatically triggered when mis-registrations between camera, projector and surface are detected.},
  subject      = {Association for Computing Machinery / Special Interest Group on Graphics},
  language  = {en}
}
@inproceedings{ZollerMaltretPoutrain1997,
  author    = {Zoller, J. and Maltret, J.-L. and Poutrain, K.},
  title     = {Models generation : from urban simulation to virtual reality},
  doi       = {10.25643/bauhaus-universitaet.449},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4498},
  year      = {1997},
  abstract  = {The aim of researches conducted within gamsau about urban simulation, in particular Remus project, is to allow rapid modeling of large and regular urban zones, for purpose of interactive navigation (like VRML) or for realistic rendering (ray-tracing methods). One of problems to be solved in this context is the multiplicity of data formats : inputs come from different sources, and outputs are for heterogeneous systems of visualization. Typically CSG and boundary representation must be generated, treated and converted during building of models. Furthermore, the generated models can be more or less refined, depending on requests and type of use. This paper describes the general context of data models conversion, problems concerning levels of detail and implementation done in Remus, based on object oriented approach.},
  subject      = {Stadtplanung},
  language  = {en}
}
@phdthesis{Zobel2004,
  author    = {Zobel, Oliver Christian},
  title     = {Typologie und Topologie der Pflegebed{\"u}rftigkeit und -infrastruktur im Freistaat Th{\"u}ringen; Explorative Analysen zu pflegebed{\"u}rftigen Menschen und Pflegeinfrastrukturen,ein Beitrag zur empirischen Regionalforschung und Landeskunde},
  doi       = {10.25643/bauhaus-universitaet.228},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20041207-2353},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Der Autor, Berater und Gutachter f{\"u}r das Th{\"u}ringer Ministerium f{\"u}r Soziales und Gesundheit und Mitverfasser der Th{\"u}ringer Landespflegepl{\"a}ne, systematisiert und analysiert die Struktur und Situation pflegebed{\"u}rftiger Menschen und deren Inanspruchnahme sozialer Pflegeinfrastrukturen im r{\"a}umlichen und demographischen Kontext. Im Mittelpunkt dieser regionalwissenschaftlichen Forschungsarbeit stehen r{\"a}umliche Disparit{\"a}ten der Versorgungs- und Angebotssicherung sowie bisher kaum betrachtete r{\"a}umliche Strukturen und Interdependenzen der Pflegebed{\"u}rftigkeit und Pflegeleistungen. Hierzu wurden vom Autor mehrere regional differenzierte Datenerhebungen aller teilstation{\"a}ren und vollstation{\"a}ren pflegebed{\"u}rftigen Menschen und der Pflegeinfrastruktureinrichtungen im Freistaat Th{\"u}ringen durchgef{\"u}hrt.Durch die Integration explorativer Analysemethoden in die empirische Regionalforschung wird die Pflegelandschaft Th{\"u}ringens f{\"u}r den Zeitraum 1994 bis 2000 dokumentiert und anhand eines relationalen Indikatorensystems die Strukturen und r{\"a}umlichen Muster der Pflegebed{\"u}rftigkeit und -infrastruktur, soziodemographischen und raumstrukturellen Einflusskomponenten sowie pflegespezifische Interdependenzen exploriert und analysiert. Ein Ergebnis sind typologische Aussagen zum Alter, zur Pflegeart und -schwere oder Struktur der Pflegeleistungen in einer hochaufl{\"o}senden topologischen Differenzierung nach regionaler Herkunft pflegebed{\"u}rftiger Menschen. So hat die Einf{\"u}hrung der Pflegeversicherung die Situation der meisten pflegebed{\"u}rftigen Menschen in Th{\"u}ringen deutlich verbessert. In der Zeitreihenuntersuchung treten diese Anfangserfolge aber hinter identifizierten Problemlagen aus z.B. sukzessiver Polarisierung der Pflegeleistungen, wachsenden Infrastrukturdisparit{\"a}ten mit exakt quantifizierbaren Wanderungsbewegungen pflegebed{\"u}rftiger Menschen zur{\"u}ck. Ein Ergebnis topologischer Analysen sind regionale (Versorgungs-) Disparit{\"a}ten, die zu nachgewiesenen Wanderungsbewegungen pflegebed{\"u}rftiger Menschen f{\"u}hren.So resultiert die noch nachweisbare Leistungs- bzw. Funktionsf{\"a}higkeit der Pflegelandschaft Th{\"u}ringens (im Sinne der pflegerischen Grundversorgung einer Teilkaskoversicherung) prim{\"a}r aus noch g{\"u}nstigen Rahmenbedingungen wie dem „selbstverst{\"a}ndlich" erbrachten informellen Pflegeleistungen (der Frauen und T{\"o}chter) und nur sekund{\"a}r (oder kaum) aus der durchaus noch guten finanziellen Situation der Pflegeversicherung. Ferner konnte gezeigt werden, dass wachsende Versorgungsdisparit{\"a}ten nur anteilig eine Infrastrukturproblematik darstellen.Die Ergebnisse werden im Hinblick auf die entwickelten Methoden und weiteren Untersuchungen diskutiert und im Kontext des theoretischen Teils u.a. zur Entwicklung der Altenhilfe, Pflegeversicherung und sozialen Infrastrukturversorgung betrachtet und vor den Konsequenzen des demographischen Wandels reflektiert. Mit den Untersuchungsergebnissen fordert der Autor, dass Alterung und Schrumpfung der Bev{\"o}lkerung in Teilr{\"a}umen als dominante Entwicklung nicht verleugnet werden darf, damit durch eine integrative Gesamtsicht einer auch sozial nachhaltigen Raumentwicklung die pflegespezifische Forderung nach einem m{\"o}glichst selbstbestimmten und selbst{\"a}ndigen Leben (im eigenen Haushalt) gewahrt und das Grundrecht auf W{\"u}rde auch pflegebed{\"u}rftiger Menschen gew{\"a}hrleistet bleibt.Dazu wird vorgeschlagen, mit einer modernen Regionalforschung, die durch hochaufl{\"o}sende Datenerfassung, neuen explorativen statistischen Analysemethoden und in Verbindung mit aussagekr{\"a}ftigen Visualisierungsverfahren ein qualifiziertes Monitoring- und Analysesystem f{\"u}r die Raumbeobachtung aufzubauen, um Problemregionen rechzeitig identifizieren und Planungen zeitnah initiieren zu k{\"o}nnen.},
  subject      = {Raumforschung},
  language  = {de}
}
@article{Zinsmeister2003,
  author    = {Zinsmeister, Annett},
  title     = {Virtual constructions : the standards of utopia},
  doi       = {10.25643/bauhaus-universitaet.1284},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080318-13540},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {K{\"u}nstliche Welt <Moiv>},
  language  = {en}
}
@incollection{Zimprich,
  author    = {Zimprich, Inga},
  title     = {K{\"o}rperstreik},
  series = {Experimente lernen, Techniken tauschen. Ein spekulatives Handbuch},
  booktitle = {Experimente lernen, Techniken tauschen. Ein spekulatives Handbuch},
  publisher = {Nocturne},
  address   = {Berlin/Weimar},
  doi       = {10.25643/bauhaus-universitaet.4260},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20201009-42607},
  publisher      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {91 -- 102},
  abstract  = {Feministische Gesundheitsrecherchegruppe},
  subject      = {Femimismus},
  language  = {de}
}
@inproceedings{ZimmermannBartels,
  author    = {Zimmermann, J{\"u}rgen and Bartels, Jan-Hendrik},
  title     = {TREE-BASED METHODS FOR RESOURCE INVESTMENT AND RESOURCE LEVELLING PROBLEMS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3040},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30405},
  pages     = {6},
  abstract  = {The execution of project activities generally requires the use of (renewable) resources like machines, equipment or manpower. The resource allocation problem consists in assigning time intervals to the execution of the project activities while taking into account temporal constraints between activities emanating from technological or organizational requirements and costs incurred by the resource allocation. If the total procurement cost of the different renewable resources has to be minimized we speak of a resource investment problem. If the cost depends on the smoothness of the resource utilization over time the underlying problem is called a resource levelling problem. In this paper we consider a new tree-based enumeration method for solving resource investment and resource levelling problems exploiting some fundamental properties of spanning trees. The enumeration scheme is embedded in a branch-and-bound procedure using a workload-based lower bound and a depth first search. Preliminary computational results show that the proposed procedure is promising for instances with up to 30 activities.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Zimmermann2003,
  author    = {Zimmermann, J{\"u}rgen},
  title     = {Modelle und Verfahren zur Planung von langfristigen Bauprojekten unter Kapitalwertgesichtspunkten},
  doi       = {10.25643/bauhaus-universitaet.383},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3837},
  year      = {2003},
  abstract  = {Langfristige Bauprojekte stellen sowohl aus technischer Sicht als auch unter Planungsgesichtspunkten {\"u}beraus komplexe Herausforderungen dar. Den laufenden Auszahlungen f{\"u}r L{\"o}hne, Materialien und fremdbezogene Dienstleistungen stehen dabei erst nach einiger Zeit Fortschrittszahlungen f{\"u}r abgeschlossene Teilprojekte gegen{\"u}ber. Die Durchf{\"u}hrung eines solchen Projekts kann mithin als Investition angesehen werden. Im Gegensatz zu herk{\"o}mmlichen Investitionen liegen bei Investitionsprojekten die Zeitpunkte der Ein- und Auszahlungen nicht fest, sondern sind Gegenstand der Planung. Zur L{\"o}sung des Annahme- bzw. Auswahlproblems bei Investitionsprojekten unter Sicherheit erfreut sich die Kapitalwertmethode breiter Zustimmung. Nach einer Betrachtung bekannter Ans{\"a}tze zur Maximierung des Kapitalwerts von Investitionsprojekten unter Annahme eines vollkommenen Kapitalmarktes wird aufgezeigt, wie das vorgestellte Modell zur Kapitalwertmaximierung f{\"u}r den Fall beschr{\"a}nkt verf{\"u}gbarer Ressourcen bzw. eines beschr{\"a}nkten Kreditrahmens angepasst werden kann. Die Bewertung von Investitionsprojekten auf Grundlage des optimalen Projektkapitalwerts setzt die Kenntnis des anzuwendenden Kalkulationszinsfußes und der maximalen Projektdauer voraus. Da diese Gr{\"o}ßen a priori nicht bekannt sind, entwickeln wir ein Verfahren zur Bestimmung des Kapitalwerts von Investitionsprojekten als Funktion des Kalkulationszinsfußes und der maximalen Projektdauer. Abschließend zeigen wir, wie die erzielten Resultate zur Entscheidungsunterst{\"u}tzung eines Bauunternehmers genutzt werden k{\"o}nnen.},
  subject      = {Investitionsplanung},
  language  = {de}
}
@article{ZimmermannKorrek1992,
  author    = {Zimmermann, Gerd and Korrek, Norbert},
  title     = {Architektur und Macht : 6. Internationales Bauhaus-Kolloquium Weimar 1992, 18.6.-21.6.1992},
  doi       = {10.25643/bauhaus-universitaet.1124},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-11249},
  year      = {1992},
  abstract  = {Wissenschaftliches Kolloquium vom 18. bis 21. Juni 1992 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: ‚Architektur und Macht'},
  subject      = {Bauhaus},
  language  = {de}
}
@article{Zimmermann2008,
  author    = {Zimmermann, Gerd},
  title     = {Die Realit{\"a}t des Imagin{\"a}ren : Architektur und das digitale Bild},
  doi       = {10.25643/bauhaus-universitaet.1346},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080815-14201},
  year      = {2008},
  abstract  = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'},
  subject      = {Architektur},
  language  = {de}
}
@inproceedings{Zimmermann,
  author    = {Zimmermann, Gerd},
  title     = {DAS KOLLOQUIUM},
  editor    = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd},
  publisher = {Verlag der Bauhaus-Universit{\"a}t},
  address   = {Weimar},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  isbn      = {978-3-86068-417-7},
  doi       = {10.25643/bauhaus-universitaet.3042},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30428},
  pages     = {6},
  abstract  = {Geb.1946 in Luckenwalde, nach dem Studium der Architektur in Weimar Promotion 1974 auf dem Gebiet der Architekturtheorie, 1973 bis 1980 Abteilung Theorie und Geschichte der Architektur am Institut f{\"u}r St{\"a}dtebau und Architektur der Bauakademie in Berlin. Arbeiten zur Architekturpsychologie und Architektursemiotik sowie Beitr{\"a}ge zur empirischen Wirkungsforschung in der Architektur. Ab 1980 Lehrt{\"a}tigkeit an der Hochschule f{\"u}r Architektur und Bauwesen (HAB) Weimar. 1992 Berufung zum Universit{\"a}tsprofessor an der HAB f{\"u}r das Fach „Entwerfen und Architekturtheorie", im gleichen Jahr Wahl zum Rektor der Hochschule, 1996 Wiederwahl f{\"u}r weitere vier Jahre. Publikationen zur Architekturtheorie, Konzeption und Veranstaltung der Internationalen Bauhaus-Kolloquien, internationale Programme mit der WASEDA Universit{\"a}t Tokyo, dem IIT Chicago, seit Mitte der 90er Jahre j{\"a}hrliche Entwurfsakademie in Rom. 2003 Wahl zum Dekan der Fakult{\"a}t Architektur und 2004 erneute Wahl zum Rektor der Bauhaus-Universit{\"a}t Weimar.},
  subject      = {Architekturtheorie},
  language  = {de}
}
@article{Zimmermann2003,
  author    = {Zimmermann, Gerd},
  title     = {Medium Architektur : zur Krise der Entwicklung ; Vorwort zum 9. Internationalen Bauhaus-Kolloquium Weimar 2003},
  doi       = {10.25643/bauhaus-universitaet.1257},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13257},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Architektur},
  language  = {de}
}
@article{Zimmermann2003,
  author    = {Zimmermann, Gerd},
  title     = {Medium Architektur},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13230},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Architektur},
  language  = {de}
}
@article{Zimmermann1990,
  author    = {Zimmermann, Gerd},
  title     = {{\"U}ber Symbolformen des "High-Tech" in der Architektur},
  doi       = {10.25643/bauhaus-universitaet.1079},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-10795},
  year      = {1990},
  abstract  = {Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'},
  subject      = {Architektur},
  language  = {de}
}
@article{Zimmermann1992,
  author    = {Zimmermann, Gerd},
  title     = {Architekturen der Macht},
  doi       = {10.25643/bauhaus-universitaet.1116},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-11164},
  year      = {1992},
  abstract  = {Wissenschaftliches Kolloquium vom 18. bis 21. Juni 1992 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: ‚Architektur und Macht'},
  subject      = {Architektur},
  language  = {de}
}
@inproceedings{Zimmermann2000,
  author    = {Zimmermann, Gerd},
  title     = {Neue Welt, Architektur und die Utopien der Globalisierung},
  doi       = {10.25643/bauhaus-universitaet.1218},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-12182},
  year      = {2000},
  abstract  = {Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚global village - Perspektiven der Architektur'},
  subject      = {Architektur},
  language  = {de}
}
@article{Zimmermann1997,
  author    = {Zimmermann, Gerd},
  title     = {Techno-Fiction : Einf{\"u}hrungsvortrag},
  doi       = {10.25643/bauhaus-universitaet.1152},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-11525},
  year      = {1997},
  abstract  = {Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1996 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Techno-Fiction. Zur Kritik der technologischen Utopien'},
  subject      = {Architektur},
  language  = {de}
}
@phdthesis{Zimmermann,
  author    = {Zimmermann, Christina},
  title     = {Ambiguit{\"a}t im zeitgen{\"o}ssischen Film. Flugversuche : Zusammenfassung},
  doi       = {10.25643/bauhaus-universitaet.2633},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160727-26336},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {1},
  abstract  = {Die Dissertation {\"u}ber „Ambiguit{\"a}t im zeitgen{\"o}ssischen Film - Flugversuche" folgt der Spur einer popul{\"a}ren narrativen Tendenz im Kino - n{\"a}mlich der Mehrdeutigkeit - und zeichnet ihr dramaturgisches Potential, wie ihre ethischen (bzw. mikropolitischen) Implikationen nach. Um typische Muster in der Wahrnehmung mehrdeutiger Filmerz{\"a}hlungen zu beschreiben, die bereits auf der vorbewussten Ebene der Affekte wirksam sind, greife ich auf Begriffe der Prozessphilosophie Alfred North Whitehead's zur{\"u}ck und auf ihre neueren Reformulierungen bei Gilles Deleuze und Brian Massumi. Ausgehend von Alejandro Gonz{\´a}lez I{\~n}{\´a}rritu's "Babel" (2006) begibt sich der Leser im ersten Teil auf einen virtuellen Rundflug durch ausgew{\"a}hlte Filmbeispiele mit einem kulturellen Ankerpunkt im heutigen Japan. Im zweiten Teil beschreibe und reflektiere ich mein methodisches Vorgehen in den ersten Phasen der Stoffentwicklung zu einem suggestiven Spielfilmprojekt, und kontextualisiere es mit Interviews zeitgen{\"o}ssischer Autorenfilmer, die {\"a}hnliche Erz{\"a}hlweisen entwickeln.},
  subject      = {Ambiguit{\"a}t},
  language  = {de}
}
@article{Zierold2008,
  author    = {Zierold, Sabine},
  title     = {Bild und Raum},
  doi       = {10.25643/bauhaus-universitaet.1325},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080814-13996},
  year      = {2008},
  abstract  = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'},
  subject      = {Architektur},
  language  = {de}
}
@article{Zierold2003,
  author    = {Zierold, Sabine},
  title     = {Das Virtuelle im Realen : der virtuelle Raum als Entgrenzung des physischen Raumes der Architektur},
  doi       = {10.25643/bauhaus-universitaet.1282},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080318-13522},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Raum},
  language  = {de}
}
@phdthesis{Zierold2004,
  author    = {Zierold, Sabine},
  title     = {Der mediale Raum der Architektur},
  doi       = {10.25643/bauhaus-universitaet.767},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20060806-8106},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Der architektonische Raum wird als ein Medium der Kommunikation im Kontext der >neuen< Medien begriffen, aus der Erkenntnis, dass er schon immer ein Medium war und aus einer komplexen Medienstruktur in Abh{\"a}ngigkeit von anderen Medien besteht. Im Prozess von Handlung und Kommunikation ist der architektonische Raum das Medium, das r{\"a}umliche N{\"a}he von Individuen {\"u}ber alle Sinne und das Bewusstsein gleichzeitig intensiv erm{\"o}glicht. Der architektonische Raum als immersives Kommunikationsmedium erreicht im Zeitalter der >neuen< Medien eine neue Dimension, indem mehr und andere Wirklichkeitsalternativen der Kommunikation zur Verf{\"u}gung stehen. N. Luhmann folgend, wird die Architektur aus der Sicht der Form/Medium-Differenz systemtheoretisch als strukturierter M{\"o}glichkeitsraum betrachtet. Der Raum ist das Medium f{\"u}r Formen des architektonischen Raumes, in dem Architektur {\"u}berhaupt erst wirksam wird. Umgekehrt sind die Formen des architektonischen Raumes Medien f{\"u}r die Wahrnehmung einer Vielzahl von r{\"a}umlichen Wirklichkeiten. Eine Fassade aus Stein oder Glas ist gebaute Form und kann als Medium Information kommunizieren. Medien werden ihrer Bestimmung um so besser gerecht, je mehr sie sich der Aufmerksamkeit entziehen und wie transparente Fenster hinter der Oberfl{\"a}che der sinnlichen Wahrnehmung zur{\"u}cktreten. Als >unwahrnehmbares< Medium ist der architektonische Raum damit eine hintergr{\"u}ndige >Wirkungsmacht<, eine B{\"u}hne f{\"u}r die Entfaltung von Wirkung, Atmosph{\"a}re und Bewegung. Seine physische Wirklichkeit war schon immer durch virtuelle Wirklichkeiten oder Realit{\"a}ten entgrenzt, die durch Techniken und Technologien der Simulation als k{\"u}nstliche Welten wahrnehmbar und kommunizierbar werden. Dies kann an tradierten Beispielen der gotischen Kathedrale, dem Panorama, den panoptischen R{\"a}umen, dem Theater, Kino oder den kontinuierlichen R{\"a}umen von der Moderne bis heute aufgezeigt weren. Virtuelle R{\"a}ume gotischer Glasbilder oder barocker Decken- und Wandbilder im Medium des architektonischen Raumes sind uns gel{\"a}ufig. Die Immersion, das Eintauchen in diese virtuellen Wirklichkeitssp{\"a}ren l{\"o}st die Wahrnehmung der eigenen k{\"o}rperlichen Pr{\"a}senz in ihnen aus. Das Potential des virtuellen Raumes der Architektur besteht im Vergleich zu anderen virtuellen Realit{\"a}ten von Text, Bild oder digitalen Medien in seiner Gebundenheit an die physische, r{\"a}umliche Reizstruktur, der er die Eindringlichkeit und Komplexit{\"a}t seiner Wirkung verdankt. Es werden unterschiedliche Wechselwirkungen und gemeinsame Entwicklungen von zeitgen{\"o}ssischen Beispielen der Architektur mit den >neuen< Medien aufgezeigt. In der »sensitiven Wand« wird die physische Raumgrenze durch die Integration neuer Techniken und Technologien digitaler, elektronischer Medien etwas extrem Flexibles und Formbares in Interaktion mit dem Benutzer. Der H2O Pavillon (Oosterhuis und NOX, 1997) ist ein Beispiel daf{\"u}r. Der ausgepr{\"a}gt polysensorische Immersionsraum steht f{\"u}r die Einheit von digitaler und architektonischer Simulation. Die metaphorische Welt von H{\"o}hle und Quelle des Thermalbades Vals (P.Zumthor, 1996) ist die r{\"a}umliche Reflexion auf die metaphorische Struktur virtueller R{\"a}ume der >neuen< Medien. Die simulierte Wirklichkeit in den Medien Wasser, Stein und architektonischer Raum produziert sch{\"o}pferisch den polysensorischen immersiven Zugang in die virtuellen Welten >authentischer< physischer Umgebung. Das >Sichtbare< im Medium Raum der Architektur ist ohne das >Unsichtbare< nicht zu begreifen bzw. das sinnlich Wahrnehmbare nicht ohne das Unwahrnehmbare. Das Erkennen dieser Relation von Form und Medium erm{\"o}glicht die Formulierung des neuen Begriffes des medialen Raumes der Architektur, der zur Basis f{\"u}r eine Medientheorie der Architektur wird, als Sichtweise der Entgrenzung des physischen Raumes durch den virtuellen Raum f{\"u}r die subjektive Wahrnehmung, Handlung und Kommunikation.},
  subject      = {Architektur},
  language  = {de}
}
@phdthesis{Ziegler2003,
  author    = {Ziegler, Frank},
  title     = {Eine formale Beschreibung der Bauauftragsrechnung : Grundlage zur Anpassung und Entwicklung eines Informationssystems},
  doi       = {10.25643/bauhaus-universitaet.76},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040319-795},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2003},
  abstract  = {Die fachlichen und organisatorischen Aufgaben der Informationsverarbeitung im Prozeß der Bauauftragsrechnung werden als theoretische Grundlage f{\"u}r die Anpassung und Neukonzeption netzverteilter Informationssysteme formal beschrieben. Hierzu erfolgen Untersuchungen von Methoden, Verfahren, Strukturen und Abl{\"a}ufen sowie der in Bauunternehmen angewendeten Informationssysteme. Grundlage einer Modellierungsmethode sind Abstraktionen von Prozeßschritten und Ereignissen in einer Ereignisgesteuerten Prozeßkette, Entitytypen in einem Entity Relationship Model, Funktionsb{\"a}ume und Organisationseinheiten sowie deren m{\"o}gliche Relationen. Mit dieser Methodik werden die Prozesse, Informationsdefinitionen, Funktionen und die Organisationsstruktur einzeln modelliert und Relationen zwischen den Modellelementen gebildet. Aus der fachlichen Auswertung der Modelle und Relationen folgen fachgebietsspezifische Prozeßabl{\"a}ufe und Arbeitsumgebungen. Deren Anwendung wird f{\"u}r ein Customizing vorhandener Informationsysteme und bei einer Neuimplementierung betrachtet. Neben einer umfangreichen fachlichen Problemanalyse leistet die Arbeit einen Beitrag zum methodischen Vorgehen bei Neukonzeption baubetrieblicher Informationssysteme.},
  subject      = {Baubetrieb},
  language  = {de}
}
@article{ZhuangHuangRabczuketal.,
  author    = {Zhuang, Xiaoying and Huang, Runqiu and Rabczuk, Timon and Liang, C.},
  title     = {A coupled thermo-hydro-mechanical model of jointed hard rock for compressed air energy storage},
  series = {Mathematical Problems in Engineering},
  journal   = {Mathematical Problems in Engineering},
  abstract  = {A coupled thermo-hydro-mechanical model of jointed hard rock for compressed air energy storage},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhuangHuangLiangetal.,
  author    = {Zhuang, Xiaoying and Huang, Runqiu and Liang, Chao and Rabczuk, Timon},
  title     = {A coupled thermo-hydro-mechanical model of jointed hard rock for compressed air energy storage},
  series = {Mathematical Problems in Engineering},
  journal   = {Mathematical Problems in Engineering},
  doi       = {10.1155/2014/179169},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170428-31726},
  abstract  = {Renewable energy resources such as wind and solar are intermittent, which causes instability when being connected to utility grid of electricity. Compressed air energy storage (CAES) provides an economic and technical viable solution to this problem by utilizing subsurface rock cavern to store the electricity generated by renewable energy in the form of compressed air. Though CAES has been used for over three decades, it is only restricted to salt rock or aquifers for air tightness reason. In this paper, the technical feasibility of utilizing hard rock for CAES is investigated by using a coupled thermo-hydro-mechanical (THM) modelling of nonisothermal gas flow. Governing equations are derived from the rules of energy balance, mass balance, and static equilibrium. Cyclic volumetric mass source and heat source models are applied to simulate the gas injection and production. Evaluation is carried out for intact rock and rock with discrete crack, respectively. In both cases, the heat and pressure losses using air mass control and supplementary air injection are compared.},
  subject      = {Energiespeicherung},
  language  = {en}
}
@phdthesis{Zhu,
  author    = {Zhu, Pengtao},
  title     = {The Variability of the Void Ratio of Sand and its Effect on Settlement and Infinite Slope Stability},
  doi       = {10.25643/bauhaus-universitaet.3741},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180403-37411},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {164},
  abstract  = {The uncertainty of a soil property can significantly affect the physical behavior of soil, so as to influence geotechnical practice. The uncertainty can be expressed by its stochastic parameters, including the mean, the standard deviation, and the spatial correlation length. These stochastic parameters are regarded as constant value in most of the former studies. The main aim of this thesis is to prove whether they are depth-dependent, and to evaluate the effect of this depth-dependent character on both the settlement and the infinite slope stability during rainwater infiltration. A stochastic one-dimensional settlement simulation is carried out using random finite element method with the von Wolffersdorff hypoplastic model, so as to evaluate the effect of stress level on the stochastic parameters of void ratio related parameters of sand. It is found that these stochastic parameters are both stress-dependent and depth-dependent. The non-stationary random field, considering the depth-dependent character of these stochastic parameters, can be generated through the distortion of the stationary random field. The one-dimensional settlement analysis is carried out to evaluation the effect of the depth-dependent character of the stochastic parameters of void ratio on the strain. It is found that the depth-dependent character has low effect on the strain. The deterministic analysis of infinite slope stability during rainwater infiltration is simulated. The transient seepage is carried out using finite difference method, while the steady state seepage is simulated using the analytical solution. The saturated hydraulic conductivity (ks) is taken as the only variable. The results show that the depth-dependent ks has a significant influence on the stability of the slope when the negative flux is high. Without considering the depth-dependent character, can overestimate the factor of safety of the slope. A slope can fail if the depth-dependent character is considered, while it is stable if the depth-dependent character is neglected. The failure time of the slope with a greater depth-dependent ks is earlier during transient infiltration. Meanwhile, the stochastic infinite slope stability analysis during infiltration, is also carried out to highlight the effect of the depth-dependent character of the stochastic parameters of ks. The results show that: the probability of failure is significantly increased if the depth-dependent character of mean is considered, while, it is moderately reduced if the depth-dependent character of the standard deviation is accounted. If the depth-dependent character of both the mean and standard deviation of ks is considered, the depth-dependent mean value plays a dominant influence on the results. Furthermore, the depth-dependent character of the spatial correlation length can slightly reduce the probability of failure.},
  subject      = {Bodenunruhe},
  language  = {en}
}
@article{ZhaoWeiFanetal.,
  author    = {Zhao, Jun-Hua and Wei, Ning and Fan, Z. and Jiang, Jin-Wu and Rabczuk, Timon},
  title     = {Mechanical properties of three types of carbon allotropes},
  series = {Nanotechnology},
  journal   = {Nanotechnology},
  abstract  = {Mechanical properties of three types of carbon allotropes},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoWangJiangetal.,
  author    = {Zhao, Jun-Hua and Wang, L. and Jiang, Jin-Wu and Wang, Z. and Guo, Wanlin and Rabczuk, Timon},
  title     = {A comparative study of two molecular mechanics models based on harmonic potentials},
  series = {Journal of Applied Physics},
  journal   = {Journal of Applied Physics},
  abstract  = {A comparative study of two molecular mechanics models based on harmonic potentials},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoLuZhangetal.,
  author    = {Zhao, Jun-Hua and Lu, Lixin and Zhang, Zhiliang and Guo, Wanlin and Rabczuk, Timon},
  title     = {Continuum modeling of the cohesive energy for the interfaces between _lms, spheres, coats and substrates},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  pages     = {432 -- 438},
  abstract  = {Continuum modeling of the cohesive energy for the interfaces between _lms, spheres, coats and substrates},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoLuRabczuk,
  author    = {Zhao, Jun-Hua and Lu, Lixin and Rabczuk, Timon},
  title     = {Binding energy and mechanical stability of single- and multi-walled carbon nanotube serpentines},
  series = {The Journal of Chemical Physics},
  journal   = {The Journal of Chemical Physics},
  doi       = {10.1063/1.4878115},
  abstract  = {Binding energy and mechanical stability of single- and multi-walled carbon nanotube serpentines},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoKouJiangetal.,
  author    = {Zhao, Jun-Hua and Kou, Liangzhi and Jiang, Jin-Wu and Rabczuk, Timon},
  title     = {Tension-induced phase transition of single-layer molybdenum disulphide (MoS2) at low temperatures},
  series = {Nanotechnology},
  journal   = {Nanotechnology},
  doi       = {10.1088/0957-4484/25/29/295701},
  abstract  = {Tension-induced phase transition of single-layer molybdenum disulphide (MoS2) at low temperatures},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoJiangJiaetal.,
  author    = {Zhao, Jun-Hua and Jiang, Jin-Wu and Jia, Yue and Guo, Wanlin and Rabczuk, Timon},
  title     = {A theoretical analysis of cohesive energy between carbon nanotubes, graphene and substrates},
  series = {Carbon},
  journal   = {Carbon},
  doi       = {10.1016/j.carbon.2013.01.041},
  pages     = {108 -- 119},
  abstract  = {Explicit solutions for the cohesive energy between carbon nanotubes, graphene and substrates are obtained through continuum modeling of the van der Waals interaction between them. The dependence of the cohesive energy on their size, spacing and crossing angles is analyzed. Checking against full atom molecular dynamics calculations and available experimental results shows that the continuum solution has high accuracy. The equilibrium distances between the nanotubes, graphene and substrates with minimum cohesive energy are also provided explicitly. The obtained analytical solution should be of great help for understanding the interaction between the nanostructures and substrates, and designing composites and nanoelectromechanical systems.},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoJiaWeietal.,
  author    = {Zhao, Jun-Hua and Jia, Yue and Wei, Ning and Rabczuk, Timon},
  title     = {Binding energy and mechanical stability of two parallel and crossing carbon nanotubes},
  series = {Journal of Applied Mechanics},
  journal   = {Journal of Applied Mechanics},
  abstract  = {Binding energy and mechanical stability of two parallel and crossing carbon nanotubes},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoGuoRabczuk,
  author    = {Zhao, Jun-Hua and Guo, Wanlin and Rabczuk, Timon},
  title     = {An analytical molecular mechanics model for the elastic properties of crystalline polyethylene},
  series = {Journal of Applied Physics},
  journal   = {Journal of Applied Physics},
  doi       = {10.1063/1.4745035},
  abstract  = {We present an analytical model to relate the elastic properties of crystalline polyethylene based on a molecular mechanics approach. Along the polymer chains direction, the united-atom (UA) CH2-CH2 bond stretching, angle bending potentials are replaced with equivalent Euler-Bernoulli beams. Between any two polymer chains, the explicit formulae are derived for the van der Waals interaction represented by the linear springs of different stiffness. Then, the nine independent elastic constants are evaluated systematically using the formulae. The analytical model is finally validated by present united-atom molecular dynamics (MD) simulations and against available all-atom molecular dynamics results in the literature. The established analytical model provides an efficient route for mechanical characterization of crystalline polymers and related materials.},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Zhao,
  author    = {Zhao, Jun-Hua},
  title     = {Multiscale modeling of nanodevices based on carbon nanotubes and polymers},
  doi       = {10.25643/bauhaus-universitaet.2107},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20140130-21078},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {175},
  abstract  = {This thesis concerns the physical and mechanical interactions on carbon nanotubes and polymers by multiscale modeling. CNTs have attracted considerable interests in view of their unique mechanical, electronic, thermal, optical and structural properties, which enable them to have many potential applications. Carbon nanotube exists in several structure forms, from individual single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) to carbon nanotube bundles and networks. The mechanical properties of SWCNTs and MWCNTs have been extensively studied by continuum modeling and molecular dynamics (MD) simulations in the past decade since the properties could be important in the CNT-based devices. CNT bundles and networks feature outstanding mechanical performance and hierarchical structures and network topologies, which have been taken as a potential saving-energy material. In the synthesis of nanocomposites, the formation of the CNT bundles and networks is a challenge to remain in understanding how to measure and predict the properties of such large systems. Therefore, a mesoscale method such as a coarse-grained (CG) method should be developed to study the nanomechanical characterization of CNT bundles and networks formation. In this thesis, the main contributions can be written as follows: (1) Explicit solutions for the cohesive energy between carbon nanotubes, graphene and substrates are obtained through continuum modeling of the van der Waals interaction between them. (2) The CG potentials of SWCNTs are established by a molecular mechanics model. (3) The binding energy between two parallel and crossing SWCNTs and MWCNTs is obtained by continuum modeling of the van der Waals interaction between them. Crystalline and amorphous polymers are increasingly used in modern industry as tructural materials due to its important mechanical and physical properties. For crystalline polyethylene (PE), despite its importance and the studies of available MD simulations and continuum models, the link between molecular and continuum descriptions of its mechanical properties is still not well established. For amorphous polymers, the chain length and temperature effect on their elastic and elastic-plastic properties has been reported based on the united-atom (UA) and CG MD imulations in our previous work. However, the effect of the CL and temperature on the failure behavior is not understood well yet. Especially, the failure behavior under shear has been scarcely reported in previous work. Therefore, understanding the molecular origins of macroscopic fracture behavior such as fracture energy is a fundamental scientific challenge. In this thesis, the main contributions can be written as follows: (1) An analytical molecular mechanics model is developed to obtain the size-dependent elastic properties of crystalline PE. (2) We show that the two molecular mechanics models, the stick-spiral and the beam models, predict considerably different mechanical properties of materials based on energy equivalence. The difference between the two models is independent of the materials. (3) The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers are scrutinized using molecular dynamics simulations. Finally, the influence of polymer wrapped two neighbouring SWNTs' dispersion on their load transfer is investigated by molecular dynamics (MD) simulations, in which the SWNTs' position, the polymer chain length and the temperature on the interaction force is systematically studied.},
  subject      = {Mehrskalenmodell},
  language  = {en}
}
@article{ZhaoLuRabczuk,
  author    = {Zhao, Jiyun and Lu, Lixin and Rabczuk, Timon},
  title     = {The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  pages     = {567 -- 572},
  abstract  = {The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhaoJiangWangetal.,
  author    = {Zhao, Jiyun and Jiang, Jin-Wu and Wang, L. and Guo, Wanlin and Rabczuk, Timon},
  title     = {Coarse-grained potentials of single-walled carbon nanotubes},
  series = {Journal of the Mechanics and Physics of Solids},
  journal   = {Journal of the Mechanics and Physics of Solids},
  abstract  = {Coarse-grained potentials of single-walled carbon nanotubes},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangRen,
  author    = {Zhang, Yongzheng and Ren, Huilong},
  title     = {Implicit implementation of the nonlocal operator method: an open source code},
  series = {Engineering with computers},
  volume    = {2022},
  journal   = {Engineering with computers},
  publisher = {Springer},
  address   = {London},
  doi       = {10.1007/s00366-021-01537-x},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220216-45930},
  pages     = {1 -- 35},
  abstract  = {In this paper, we present an open-source code for the first-order and higher-order nonlocal operator method (NOM) including a detailed description of the implementation. The NOM is based on so-called support, dual-support, nonlocal operators, and an operate energy functional ensuring stability. The nonlocal operator is a generalization of the conventional differential operators. Combined with the method of weighed residuals and variational principles, NOM establishes the residual and tangent stiffness matrix of operate energy functional through some simple matrix without the need of shape functions as in other classical computational methods such as FEM. NOM only requires the definition of the energy drastically simplifying its implementation. The implementation in this paper is focused on linear elastic solids for sake of conciseness through the NOM can handle more complex nonlinear problems. The NOM can be very flexible and efficient to solve partial differential equations (PDEs), it's also quite easy for readers to use the NOM and extend it to solve other complicated physical phenomena described by one or a set of PDEs. Finally, we present some classical benchmark problems including the classical cantilever beam and plate-with-a-hole problem, and we also make an extension of this method to solve complicated problems including phase-field fracture modeling and gradient elasticity material.},
  subject      = {Strukturmechanik},
  language  = {en}
}
@article{Zhang,
  author    = {Zhang, Yongzheng},
  title     = {Nonlocal dynamic Kirchhoff plate formulation based on nonlocal operator method},
  series = {Engineering with Computers},
  volume    = {2022},
  journal   = {Engineering with Computers},
  publisher = {Springer},
  address   = {London},
  doi       = {10.1007/s00366-021-01587-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220209-45849},
  pages     = {1 -- 35},
  abstract  = {In this study, we propose a nonlocal operator method (NOM) for the dynamic analysis of (thin) Kirchhoff plates. The nonlocal Hessian operator is derived based on a second-order Taylor series expansion. The NOM does not require any shape functions and associated derivatives as 'classical' approaches such as FEM, drastically facilitating the implementation. Furthermore, NOM is higher order continuous, which is exploited for thin plate analysis that requires C1 continuity. The nonlocal dynamic governing formulation and operator energy functional for Kirchhoff plates are derived from a variational principle. The Verlet-velocity algorithm is used for the time discretization. After confirming the accuracy of the nonlocal Hessian operator, several numerical examples are simulated by the nonlocal dynamic Kirchhoff plate formulation.},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Zhang,
  author    = {Zhang, Yongzheng},
  title     = {A Nonlocal Operator Method for Quasi-static and Dynamic Fracture Modeling},
  doi       = {10.25643/bauhaus-universitaet.4732},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221026-47321},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Material failure can be tackled by so-called nonlocal models, which introduce an intrinsic length scale into the formulation and, in the case of material failure, restore the well-posedness of the underlying boundary value problem or initial boundary value problem. Among nonlocal models, peridynamics (PD) has attracted a lot of attention as it allows the natural transition from continuum to discontinue and thus allows modeling of discrete cracks without the need to describe and track the crack topology, which has been a major obstacle in traditional discrete crack approaches. This is achieved by replacing the divergence of the Cauchy stress tensor through an integral over so-called bond forces, which account for the interaction of particles. A quasi-continuum approach is then used to calibrate the material parameters of the bond forces, i.e., equating the PD energy with the energy of a continuum. One major issue for the application of PD to general complex problems is that they are limited to fairly simple material behavior and pure mechanical problems based on explicit time integration. PD has been extended to other applications but losing simultaneously its simplicity and ease in modeling material failure. Furthermore, conventional PD suffers from instability and hourglass modes that require stabilization. It also requires the use of constant horizon sizes, which drastically reduces its computational efficiency. The latter issue was resolved by the so-called dual-horizon peridynamics (DH-PD) formulation and the introduction of the duality of horizons. Within the nonlocal operator method (NOM), the concept of nonlocality is further extended and can be considered a generalization of DH-PD. Combined with the energy functionals of various physical models, the nonlocal forms based on the dual-support concept can be derived. In addition, the variation of the energy functional allows implicit formulations of the nonlocal theory. While traditional integral equations are formulated in an integral domain, the dual-support approaches are based on dual integral domains. One prominent feature of NOM is its compatibility with variational and weighted residual methods. The NOM yields a direct numerical implementation based on the weighted residual method for many physical problems without the need for shape functions. Only the definition of the energy or boundary value problem is needed to drastically facilitate the implementation. The nonlocal operator plays an equivalent role to the derivatives of the shape functions in meshless methods and finite element methods (FEM). Based on the variational principle, the residual and the tangent stiffness matrix can be obtained with ease by a series of matrix multiplications. In addition, NOM can be used to derive many nonlocal models in strong form. The principal contributions of this dissertation are the implementation and application of NOM, and also the development of approaches for dealing with fractures within the NOM, mostly for dynamic fractures. The primary coverage and results of the dissertation are as follows: -The first/higher-order implicit NOM and explicit NOM, including a detailed description of the implementation, are presented. The NOM is based on so-called support, dual-support, nonlocal operators, and an operate energy functional ensuring stability. The nonlocal operator is a generalization of the conventional differential operators. Combining with the method of weighted residuals and variational principles, NOM establishes the residual and tangent stiffness matrix of operate energy functional through some simple matrix without the need of shape functions as in other classical computational methods such as FEM. NOM only requires the definition of the energy drastically simplifying its implementation. For the sake of conciseness, the implementation in this chapter is focused on linear elastic solids only, though the NOM can handle more complex nonlinear problems. An explicit nonlocal operator method for the dynamic analysis of elasticity solid problems is also presented. The explicit NOM avoids the calculation of the tangent stiffness matrix as in the implicit NOM model. The explicit scheme comprises the Verlet-velocity algorithm. The NOM can be very flexible and efficient for solving partial differential equations (PDEs). It's also quite easy for readers to use the NOM and extend it to solve other complicated physical phenomena described by one or a set of PDEs. Several numerical examples are presented to show the capabilities of this method. -A nonlocal operator method for the dynamic analysis of (thin) Kirchhoff plates is proposed. The nonlocal Hessian operator is derived from a second-order Taylor series expansion. NOM is higher-order continuous, which is exploited for thin plate analysis that requires \$C^1\$ continuity. The nonlocal dynamic governing formulation and operator energy functional for Kirchhoff plates are derived from a variational principle. The Verlet-velocity algorithm is used for time discretization. After confirming the accuracy of the nonlocal Hessian operator, several numerical examples are simulated by the nonlocal dynamic Kirchhoff plate formulation. -A nonlocal fracture modeling is developed and applied to the simulation of quasi-static and dynamic fractures using the NOM. The phase field's nonlocal weak and associated strong forms are derived from a variational principle. The NOM requires only the definition of energy. We present both a nonlocal implicit phase field model and a nonlocal explicit phase field model for fracture; the first approach is better suited for quasi-static fracture problems, while the key application of the latter one is dynamic fracture. To demonstrate the performance of the underlying approach, several benchmark examples for quasi-static and dynamic fracture are solved.},
  subject      = {Variationsprinzip},
  language  = {en}
}
@article{ZhangZhuangMuthuetal.,
  author    = {Zhang, Yancheng and Zhuang, Xiaoying and Muthu, Jacob and Mabrouki, Tarek and Fontaine, Micha{\"e}l and Gong, Yadong and Rabczuk, Timon},
  title     = {Load transfer of graphene/carbon nanotube/polyethylene hybrid nanocomposite by molecular dynamics simulation},
  series = {Composites Part B Engineering},
  journal   = {Composites Part B Engineering},
  pages     = {27 -- 33},
  abstract  = {Load transfer of graphene/carbon nanotube/polyethylene hybrid nanocomposite by molecular dynamics simulation},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangZhaoJiaetal.,
  author    = {Zhang, Yancheng and Zhao, Jun-Hua and Jia, Yue and Mabrouki, Tarek and Gong, Yadong and Wei, Ning and Rabczuk, Timon},
  title     = {An analytical solution on the interface debonding for large diameter carbon nanotube-reinforced composite with functionally graded variation interphase},
  series = {Composite Structures},
  journal   = {Composite Structures},
  pages     = {261 -- 269},
  abstract  = {An analytical solution on the interface debonding for large diameter carbon nanotube-reinforced composite with functionally graded variation interphase},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangZhaoWeietal.,
  author    = {Zhang, Yancheng and Zhao, Jiyun and Wei, Ning and Jiang, Jin-Wu and Rabczuk, Timon},
  title     = {Effects of the dispersion of polymer wrapped two neighbouring single walled carbon nanotubes (SWNTs) on nanoengineering load transfer},
  series = {Composites Part B: Engineering},
  journal   = {Composites Part B: Engineering},
  pages     = {1714 -- 1721},
  abstract  = {Effects of the dispersion of polymer wrapped two neighbouring single walled carbon nanotubes (SWNTs) on nanoengineering load transfer},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangWeiZhaoetal.,
  author    = {Zhang, Yancheng and Wei, Ning and Zhao, Jun-Hua and Gong, Yadong and Rabczuk, Timon},
  title     = {Quasi-analytical solution for the stable system of the multi-layer folded graphene wrinkles},
  series = {Journal of Applied Physics},
  journal   = {Journal of Applied Physics},
  abstract  = {Quasi-analytical solution for the stable system of the multi-layer folded graphene wrinkles},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Zhang,
  author    = {Zhang, Rui},
  title     = {Staatsverst{\"a}ndnis und Unternehmensentwicklung am Beispiel chinesischer Buchdruckunternehmen},
  doi       = {10.25643/bauhaus-universitaet.2721},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20161205-27215},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {In der Arbeit wurde eine Methode f{\"u}r eine kultur{\"u}bergreifende Vergleichsstudie zwischen China und dem Westen erarbeitet. Diese Methode erm{\"o}glicht Unternehmensentwicklung in China aus dem eignen historischen Zusammenhang zu verstehen, statt nur aus einem rein theoretischen Blickwinkel. Weil heutige wissenschaftliche Theorien meist aus der westlichen Kultur stammen und mit Wertvorstellungen sowie mit Begriffen aus dem westlichen Kulturkreis verbunden sind, m{\"u}ssen sie im historischen Kontext des westlichen Kulturkreises betrachtet werden. Im ersten Teil der Arbeit wird der westliche moderne Staat als Untersuchungsbegriff herangezogen, seine Entstehungsbedingungen und seine Verwendungsart und -weise, besonders wie er die {\"o}konomische Theorie und die Praxis im Westen beeinflusst, dabei spielt das moderne Staatsprinzip eine wichtige Rolle. Die Neue Institutionen{\"o}konomik dient als theoretischer Referenzrahmen f{\"u}r diese Arbeit. Mittels einer theoretischen Erweiterung mit dem westlichen modernen Staatsverst{\"a}ndnis werden wichtige westliche konstitutionelle Institutionen analysiert, da sie die Handlungsrechte und -pflichten der B{\"u}rger sowie die Bildung der kapitalistischen Unternehmung beeinflussen. Im zweiten Teil der Arbeit wird das chinesische Staatsverst{\"a}ndnis analysiert - vom traditionellen „Tianxia" zum „modernen" Staat. Mithilfe abgeleiteter Kriterien wird die chinesische Unternehmensentwicklung in drei zeitlichen Querschnittsphasen betrachtet, wie sich chinesische Unternehmen vom traditionellen bis zum „modernen" entwickelten. Als Fallbeispiel werden chinesische Buchdruckunternehmen herangezogen. Zuerst wird das Buchdrucksystem sowie seine Ver{\"a}nderungen in drei Zeitphase betrachtet. Dabei wird auf die Aspekte Buchdruckorganisation, staatliche Verwaltung, wie Zensur und Urheberrecht sowie Lehrmaterial fokussiert, die f{\"u}r die Buchdruckunternehmensentwicklung von Bedeutung sind und ein System darstellen. Aus Mikrosicht werden drei Buchdruckunternehmen in den Zeitphasen analysiert. Im Ergebnis der Arbeit werden Schlussfolgerungen abgeleitet, bspw. dass Modernisierung als Aktualisierung verstanden werden sollte, aber nicht als Zerst{\"o}rung.},
  subject      = {Unternehmen},
  language  = {de}
}
@article{ZhangWangLahmeretal.,
  author    = {Zhang, Chao and Wang, Cuixia and Lahmer, Tom and He, Pengfei and Rabczuk, Timon},
  title     = {A dynamic XFEM formulation for crack identification},
  series = {International Journal of Mechanics and Materials in Design},
  journal   = {International Journal of Mechanics and Materials in Design},
  pages     = {427 -- 448},
  abstract  = {A dynamic XFEM formulation for crack identification},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangNanthakumarLahmeretal.,
  author    = {Zhang, Chao and Nanthakumar, S.S. and Lahmer, Tom and Rabczuk, Timon},
  title     = {Multiple cracks identification for piezoelectric structures},
  series = {International Journal of Fracture},
  journal   = {International Journal of Fracture},
  pages     = {1 -- 19},
  abstract  = {Multiple cracks identification for piezoelectric structures},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{ZhangHaoWangetal.,
  author    = {Zhang, Chao and Hao, Xiao-Li and Wang, Cuixia and Wei, Ning and Rabczuk, Timon},
  title     = {Thermal conductivity of graphene nanoribbons under shear deformation: A molecular dynamics simulation},
  series = {Scientific Reports},
  journal   = {Scientific Reports},
  doi       = {10.1038/srep41398},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170428-31718},
  abstract  = {Tensile strain and compress strain can greatly affect the thermal conductivity of graphene nanoribbons (GNRs). However, the effect of GNRs under shear strain, which is also one of the main strain effect, has not been studied systematically yet. In this work, we employ reverse nonequilibrium molecular dynamics (RNEMD) to the systematical study of the thermal conductivity of GNRs (with model size of 4 nm × 15 nm) under the shear strain. Our studies show that the thermal conductivity of GNRs is not sensitive to the shear strain, and the thermal conductivity decreases only 12-16\% before the pristine structure is broken. Furthermore, the phonon frequency and the change of the micro-structure of GNRs, such as band angel and bond length, are analyzed to explore the tendency of thermal conductivity. The results show that the main influence of shear strain is on the in-plane phonon density of states (PDOS), whose G band (higher frequency peaks) moved to the low frequency, thus the thermal conductivity is decreased. The unique thermal properties of GNRs under shear strains suggest their great potentials for graphene nanodevices and great potentials in the thermal managements and thermoelectric applications.},
  subject      = {W{\"a}rmeleitf{\"a}higkeit},
  language  = {en}
}
@phdthesis{ZHANG2018,
  author    = {ZHANG, CHAO},
  title     = {Crack Identification using Dynamic Extended Finite Element Method and Thermal Conductivity Engineering for Nanomaterials},
  doi       = {10.25643/bauhaus-universitaet.3847},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190119-38478},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2018},
  abstract  = {Identification of flaws in structures is a critical element in the management of maintenance and quality assurance processes in engineering. Nondestructive testing (NDT) techniques based on a wide range of physical principles have been developed and are used in common practice for structural health monitoring. However, basic NDT techniques are usually limited in their ability to provide the accurate information on locations, dimensions and shapes of flaws. One alternative to extract additional information from the results of NDT is to append it with a computational model that provides detailed analysis of the physical process involved and enables the accurate identification of the flaw parameters. The aim here is to develop the strategies to uniquely identify cracks in two-dimensional 2D) structures under dynamic loadings. A local NDT technique combined eXtended Finite Element Method (XFEM) with dynamic loading in order to identify the cracks in the structures quickly and accurately is developed in this dissertation. The Newmark-b time integration method with Rayleigh damping is used for the time integration. We apply Nelder-Mead (NM)and Quasi-Newton (QN) methods for identifying the crack tip in plate. The inverse problem is solved iteratively, in which XFEM is used for solving the forward problem in each iteration. For a timeharmonic excitation with a single frequency and a short-duration signal measured along part of the external boundary, the crack is detected through the solution of an inverse time-dependent problem. Compared to the static load, we show that the dynamic loads are more effective for crack detection problems. Moreover, we tested different dynamic loads and find that NM method works more efficient under the harmonic load than the pounding load while the QN method achieves almost the same results for both load types. A global strategy, Multilevel Coordinate Search (MCS) with XFEM (XFEM-MCS) methodology under the dynamic electric load, to detect multiple cracks in 2D piezoelectric plates is proposed in this dissertation. The Newmark-b method is employed for the time integration and in each iteration the forward problem is solved by XFEM for various cracks. The objective functional is minimized by using a global search algorithm MCS. The test problems show that the XFEM-MCS algorithm under the dynamic electric load can be effectively employed for multiple cracks detection in piezoelectric materials, and it proves to be robust in identifying defects in piezoelectric structures. Fiber-reinforced composites (FRCs) are extensively applied in practical engineering since they have high stiffness and strength. Experiments reveal a so-called interphase zone, i.e. the space between the outside interface of the fiber and the inside interface of the matrix. The interphase strength between the fiber and the matrix strongly affects the mechanical properties as a result of the large ratio of interface/volume. For the purpose of understanding the mechanical properties of FRCs with functionally graded interphase (FGI), a closed-form expression of the interface strength between a fiber and a matrix is obtained in this dissertation using a continuum modeling approach according to the ver derWaals (vdW) forces. Based on the interatomic potential, we develop a new modified nonlinear cohesive law, which is applied to study the interface delamination of FRCs with FGI under different loadings. The analytical solutions show that the delamination behavior strongly depends on the interphase thickness, the fiber radius, the Young's moduli and Poisson's ratios of the fiber and the matrix. Thermal conductivity is the property of a material to conduct heat. With the development and deep research of 2D materials, especially graphene and molybdenum disulfide (MoS2), the thermal conductivity of 2D materials attracts wide attentions. The thermal conductivity of graphene nanoribbons (GNRs) is found to appear a tendency of decreasing under tensile strain by classical molecular dynamics (MD) simulations. Hence, the strain effects of graphene can play a key role in the continuous tunability and applicability of its thermal conductivity property at nanoscale, and the dissipation of thermal conductivity is an obstacle for the applications of thermal management. Up to now, the thermal conductivity of graphene under shear deformation has not been investigated yet. From a practical point of view, good thermal managements of GNRs have significantly potential applications of future GNR-based thermal nanodevices, which can greatly improve performances of the nanosized devices due to heat dissipations. Meanwhile, graphene is a thin membrane structure, it is also important to understand the wrinkling behavior under shear deformation. MoS2 exists in the stable semiconducting 1H phase (1H-MoS2) while the metallic 1T phase (1T-MoS2) is unstable at ambient conditions. As it's well known that much attention has been focused on studying the nonlinear optical properties of the 1H-MoS2. In a very recent research, the 1T-type monolayer crystals of TMDCs, MX2 (MoS2, WS2 ...) was reported having an intrinsic in-plane negative Poisson's ratio. Luckily, nearly at the same time, unprecedented long-term (>3months) air stability of the 1T-MoS2 can be achieved by using the donor lithium hydride (LiH). Therefore, it's very important to study the thermal conductivity of 1T-MoS2. The thermal conductivity of graphene under shear strain is systematically studied in this dissertation by MD simulations. The results show that, in contrast to the dramatic decrease of thermal conductivity of graphene under uniaxial tensile, the thermal conductivity of graphene is not sensitive to the shear strain, and the thermal conductivity decreases only 12-16\%. The wrinkle evolves when the shear strain is around 5\%-10\%, but the thermal conductivity barely changes. The thermal conductivities of single-layer 1H-MoS2(1H-SLMoS2) and single-layer 1T-MoS2 (1T-SLMoS2) with different sample sizes, temperatures and strain rates have been studied systematically in this dissertation. We find that the thermal conductivities of 1H-SLMoS2 and 1T-SLMoS2 in both the armchair and the zigzag directions increase with the increasing of the sample length, while the increase of the width of the sample has minor effect on the thermal conductions of these two structures. The thermal conductivity of 1HSLMoS2 is smaller than that of 1T-SLMoS2 under size effect. Furthermore, the temperature effect results show that the thermal conductivities of both 1H-SLMoS2 and 1T-SLMoS2 decrease with the increasing of the temperature. The thermal conductivities of 1HSLMoS2 and 1T-SLMoS2 are nearly the same (difference <6\%) in both of the chiral orientations under corresponding temperatures, especially in the armchair direction (difference <2.8\%). Moreover, we find that the strain effects on the thermal conductivity of 1HSLMoS2 and 1T-SLMoS2 are different. More specifically, the thermal conductivity decreases with the increasing tensile strain rate for 1T-SLMoS2, while fluctuates with the growth of the strain for 1HSLMoS2. Finally, we find that the thermal conductivity of same sized 1H-SLMoS2 is similar with that of the strained 1H-SLMoS2 structure.},
  subject      = {crack},
  language  = {en}
}
@article{ZhakSidorenko1997,
  author    = {Zhak, S. V. and Sidorenko, V. S.},
  title     = {Optimized Models of Modes Choice for Displacement of technical Systems Objects},
  doi       = {10.25643/bauhaus-universitaet.534},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5347},
  year      = {1997},
  abstract  = {The effectiveness of working processes accomplished by various technological machines to a large extend depends on working quality of supply, transporting and orientating mechanisms which are very often produced as positional hydro-mechanical systems. The choice of their best type and regimes of work requires construction and analysis of models of their optimum steering which are complicated by nonlinearness, multy-criterialness of problem and also by occasional outbreaks of parameters and moments of steering regime changing. It was developed the common structure of such systems allowing within common scheme to vary the complexity degree of PHMS and the methods of inhibitory efforts supplement. For some systems which are complicated in series (from two-measured linear system to nine-measured non-linear) puzzles of the most fast zero-ambit getting are solved and two-criterial problems are analyzed. (T-min-speed, Z(T)- accuracy). There are suggested the computing procedures of optimum PHMS synthesis. The effectiveness of accepted methods of solving is asserted by the analogy of the results of gradually complicated models investigation and by their good analogy with the natural experiment. It was exposed the sense of heuristic methods of improving of approximately optimum steering, their elaboration on the base of theoretical models. The basic methods of optimum PGMS construction were also nominated.},
  subject      = {Modellierung},
  language  = {en}
}
@article{ZerbstVormwaldAnderschetal.,
  author    = {Zerbst, U. and Vormwald, Michael and Andersch, C. and M{\"a}dler, K. and Pfuff, M.},
  title     = {The development of a damage tolerance concept for railway components and its demonstration for a railway axle},
  series = {Engineering Fracture Mechanics},
  journal   = {Engineering Fracture Mechanics},
  pages     = {209 -- 239},
  abstract  = {The development of a damage tolerance concept for railway components and its demonstration for a railway axle},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@inproceedings{Zentner2003,
  author    = {Zentner, Frank},
  title     = {Einsatz internetbasierter Projektplattformen im Bereich der Bauausf{\"u}hrung - "Digitales Bautagebuch"},
  doi       = {10.25643/bauhaus-universitaet.382},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3822},
  year      = {2003},
  abstract  = {Der Einsatz internetbasierter Projektplattformen in der Bauausf{\"u}hrung wurde bisher kaum thematisiert. Die typischen Vorteile des Einsatzes solcher Werkzeuge, wie etwa die Unterst{\"u}tzung kooperativer, geographisch und zeitlich verteilter Prozesse, scheinen f{\"u}r diesen Einsatzbereich nicht so offensichtlich zu sein wie f{\"u}r den Bereich der Geb{\"a}udeplanung. Vor dem Hintergrund der anhaltend problematischen Situation der Bauwirtschaft und der Tatsache, dass im Bereich der Bauausf{\"u}hrung oftmals die wesentlichen Ursachen f{\"u}r einen unplanm{\"a}ßigen Ablauf von Bauprojekten oder ein Verfehlen von Kosten-, Termin- oder Qualit{\"a}tszielen zu finden sind, kommt diesen Anwendungen eine große Bedeutung zu. Im Rahmen eines gr{\"o}ßeren Forschungsprojektes des BMWi (TK3 GIT Siegen / Projekttr{\"a}ger PTJ-BEO) wurde unter dem Arbeitstitel >Digitales Bautagebuch< ein ausf{\"u}hrungsorientiertes Modul f{\"u}r eine schon in den Planungsphasen des Projektes eingesetzte Projektplattform entwickelt. Dabei wurde projektbegleitend eine Umgebung implementiert, welche sowohl die Bauleitung bei ihrer t{\"a}glichen Arbeit unterst{\"u}tzt als auch Entscheidungstr{\"a}gern und anderen Projektbeteiligten einen schnellen {\"U}berblick {\"u}ber den Stand der Arbeiten erm{\"o}glicht. Dieser Beitrag setzt sich mit dem Einsatz internetbasierter Projektplattformen im Bereich der Bauausf{\"u}hrung auseinander und beschreibt deren M{\"o}glichkeiten unter Einbringung der Erfahrungen aus der Anwendung im Bauprojekt TK3 GIT Siegen.},
  subject      = {Digitalisierung},
  language  = {de}
}
@phdthesis{Zellmann2008,
  author    = {Zellmann, Hans-Dieter},
  title     = {Metaphosphat - modifizierte Silikatbinder als Basis s{\"a}urebest{\"a}ndiger Beschichtungsmaterialien},
  doi       = {10.25643/bauhaus-universitaet.1372},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20081127-14385},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2008},
  abstract  = {M{\"o}rtel basierend auf erh{\"a}rtetem Wasserglas als Binder weisen eine ausgesprochen gute Best{\"a}ndigkeit im Kontakt mit stark sauren Medien auf; unzureichend hingegen ist die che-mische Best{\"a}ndigkeit im Kontakt mit alkalischen bis schwachsauren Medien. Ziel der Un-tersuchungen ist eine Verbesserung der Wasserbest{\"a}ndigkeit von Natriumsilikatbindern durch gezielte chemische Modifikation mit verschiedenen Metaphosphaten. Durch eine systematische Charakterisierung der Zusammensetzung und des strukturellen Aufbaus der Binder werden dabei die Ursachen der bindertypischen Eigenschaften aufgekl{\"a}rt. Eine Modifikation der Natriumsilikatl{\"o}sung mit Natriumtrimetaphosphat hat eine Erh{\"o}hung des Kondensationsgrades und eine verbesserte mechanische Best{\"a}ndigkeit des verfestig-ten Natriumsilikatbinders zur Folge. Durch die reaktive Bindung der Basizit{\"a}t der Natriumsi-likatl{\"o}sung beim Abbau der Metaphosphatstruktur wird die Wasserbest{\"a}ndigkeit mit Natri-umtrimetaphosphat modifizierter Natriumsilikatm{\"o}rtel erh{\"o}ht. Die gute Best{\"a}ndigkeit im Kontakt mit hochkonzentrierter Schwefels{\"a}ure bleibt nahezu unver{\"a}ndert erhalten. Eine Modifikation der Natriumsilikatl{\"o}sung mit Aluminiumtetrametaphosphat f{\"u}hrt durch Reaktion beider Komponenten miteinander zur Bildung eines alumosilikatischen Netzwer-kes. Das alumosilikatische Netzwerk des mit Aluminiumtetrametaphosphat modifizierten Natriumsilikatbinders ist auch in einer stark alkalischen Natriumhydroxidl{\"o}sung best{\"a}ndig. Die gute Best{\"a}ndigkeit des Binders im Kontakt mit hochkonzentrierter Schwefels{\"a}ure bleibt trotz des Aluminates im Bindernetzwerk erhalten.},
  subject      = {Wasserglas},
  language  = {de}
}
@inproceedings{ZeiserDahmenRohwedderetal.,
  author    = {Zeiser, Andreas and Dahmen, W. and Rohwedder, T. and Schneider, R.},
  title     = {ADAPTIVE EIGENVALUE COMPUTATION FOR ELLIPTIC OPERATORS},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  issn      = {1611-4086},
  doi       = {10.25643/bauhaus-universitaet.2904},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29042},
  pages     = {14},
  abstract  = {We present recent developments of adaptive wavelet solvers for elliptic eigenvalue problems. We describe the underlying abstract iteration scheme of the preconditioned perturbed iteration. We apply the iteration to a simple model problem in order to identify the main ideas which a numerical realization of the abstract scheme is based upon. This indicates how these concepts carry over to wavelet discretizations. Finally we present numerical results for the Poisson eigenvalue problem on an L-shaped domain.},
  subject      = {Angewandte Informatik},
  language  = {en}
}
@phdthesis{Zeh2007,
  author    = {Zeh, Rainer},
  title     = {Die Zugfestigkeit bindiger B{\"o}den als Kriterium der Rissgef{\"a}hrdung mineralischer Oberfl{\"a}chenabdichtungen},
  doi       = {10.25643/bauhaus-universitaet.817},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20070522-8692},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2007},
  abstract  = {Oberfl{\"a}chenabdichtungen von Deponien sind in ihrer langfristigen Funktion h{\"a}ufig durch eine austrocknungsbedingter Rissbildung der mineralischen Dichtungskomponente gef{\"a}hrdet. Als Ursachen gelten insbesondere das standortspezifische Klima mit den stark schwankenden Randbedingungen (Niederschlag, Temperatur), Pflanzen und Tiere sowie auch ein ungeeigneter Systemaufbau. Durch einen Wasserentzug treten Schrumpfungsprozesse in der mineralischen Dichtung auf welche {\"u}ber negative Dehnungen zu Dehnungsbr{\"u}chen und damit zu einer Rissbildung f{\"u}hren. F{\"u}r die Beanspruchbarkeit eines Dichtungsmaterials bei Wasserentzug sind insbesondere dessen Schrumpfverhalten und dessen Zugfestigkeit von Bedeutung. Beide Eigenschaften wurden durch eigens konzipierte Laborversuche beispielhaft an zwei typischen Dichtungsb{\"o}den untersucht. Die Ergebnisse zeigen eine große Abh{\"a}ngigkeit von der Wasserspannung sowie von der Bodenstruktur. F{\"u}r die Zugfestigkeit und dem daraus abgeleiteten Dehnungsmodul gilt z. B. jeweils eine eindeutige Zunahme mit Zunahme der Wasserspannungen. Mit Hilfe der Ergebnisse aus den Laborversuchen sowie numerischen Berechnungen des Was-serhaushaltes und der vorherrschenden Spannungen kann eine erste Rissgef{\"a}hrdungsabsch{\"a}tzung f{\"u}r mineralische Dichtungen in Oberfl{\"a}chenabdichtungen abgeleitet und angewandt werden. Weitere Erl{\"a}uterungen z. B. zu den Eigenschaften und der Teils{\"a}ttigung bindiger B{\"o}den, analytische Zugfestigkeitsberechnungen oder Empfehlungen zum Entwurf und der Herstellung von Oberfl{\"a}chenabdichtungen erg{\"a}nzen die Arbeit.},
  subject      = {Deponiebau},
  language  = {de}
}
@inproceedings{ZavadskasPeldschus2003,
  author    = {Zavadskas, Edmundas Kazimieras and Peldschus, Friedel},
  title     = {Mehrkriterielle Entscheidungen im Bauwesen},
  doi       = {10.25643/bauhaus-universitaet.381},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3812},
  year      = {2003},
  abstract  = {Die Technische Gediminas Universit{\"a}t Vilnius, Lehrstuhl Technologie der Bauproduktion und die Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig, Lehrbereich Baubetrieb, haben sich seit mehreren Jahren mit den Problemen der mehrkriteriellen Entscheidung im Bauwesen befasst. Auf Grund der unterschiedlichen Herangehensweise werden f{\"u}r numerische L{\"o}sungen auch unterschiedliche Methoden benutzt. Das gemeinsame Ziel war immer eine optimale Variantenauswahl f{\"u}r baubetriebliche Produktionsprozesse. Zur Unterst{\"u}tzung der numerischen L{\"o}sungen wurde gemeinsam das EDV-Programm LEVI entwickelt, welches heute wahlweise als deutschsprachige oder englischsprachige Version genutzt werden kann. Die Beschreibung der zu l{\"o}senden Probleme erfolgt in Form einer Matrix. Diese enth{\"a}lt die Varianten (Zeilen) und die Kriterien (Spalten). Dabei sind die Varianten Ausdruck einer Menge real existierender Situationen f{\"u}r ein Problem. Alle betrachteten Varianten werden durch die gleichen Kriterien bewertet. Da die Kriterien gew{\"o}hnlich unterschiedliche Dimensionen besitzen, ist ihre Wirksamkeit nicht direkt miteinander vergleichbar. Eine Ausnahme bildet die Bewertung mit einem Punktsystem. Diese beinhaltet jedoch in hohem Maße subjektive Einfl{\"u}sse und sollte daher nur in Ausnahmef{\"a}llen benutzt werden. Um die Schwierigkeiten der unterschiedlichen Dimensionen f{\"u}r die verschiedenen Kriterien zu umgehen, wird das Verh{\"a}ltnis zum jeweiligen Optimalwert gebildet. Damit werden gleichzeitig die Diskrepanzen, die durch die unterschiedlichen Gr{\"o}ßenordnungen der Optimalwerte entstehen, beseitigt. F{\"u}r das Verh{\"a}ltnis des Funktionswertes zum Optimalwert existieren unterschiedliche Auffassungen. Es muss an dieser Stelle bemerkt werden, dass mit der Entscheidung {\"u}ber die Art des Verh{\"a}ltnisses zum Optimalwert auch die L{\"o}sung beeinflusst werden kann. Untersuchungen {\"u}ber solche Auswirkungen sind noch nicht abgeschlossen, so dass im Augenblick nur vorl{\"a}ufige Ergebnisse genannt werden k{\"o}nnen. Von den bekannten Transformationsmethoden benutzen die Verfasser die vektorwertige Transformation, die lineare Transformation, die relative Abweichung und eine nichtlineare Transformation. Dadurch erfolgt eine Abbildung auf das Intervall [1 ; 0 ] bzw. [ 1 ; ~ 0 ]. F{\"u}r die L{\"o}sungsmethoden erfolgt eine Unterscheidung in eine einseitige oder zweiseitige Fragestellungen. W{\"a}hrend die einseitige Fragestellung auf die Bestimmung einer Rangfolge orientiert, berechnet die zweiseitige Fragestellung ein spieltheoretisches Gleichgewicht als Ausdruck eines rationalen Verhaltens von zwei entgegengesetzten Interessengruppen und L{\"o}sungen f{\"u}r Spiele gegen die Natur. In Anlehnung an das statische Gleichgewicht messen die Verfasser dem spieltheoretischen Gleichgewicht f{\"u}r die Dimensionierung baubetrieblicher Produktionsprozesse eine besondere Bedeutung zu. Bisherige Anwendungen konzentrieren sich auf die optimale Auswahl im Wohnungsbau, die Auswahl von Konstruktionsvarianten, die Auswahl von Montagevarianten, den Einsatz von W{\"a}rmed{\"a}mmstoffen u.a. F{\"u}r die Dimensionierung von Produktionsprozessen mit Serienproduktion wurde eine L{\"o}sung mit einer gewichteten Matrix vorgeschlagen.},
  subject      = {Bauwesen},
  language  = {de}
}
@article{ZavadskasKaklauskasViteikiene2004,
  author    = {Zavadskas, Edmundas Kazimieras and Kaklauskas, Arturas and Viteikiene, Milda},
  title     = {Database of Best Practices and Decision Support Web-based System for Construction Innovation},
  doi       = {10.25643/bauhaus-universitaet.217},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2173},
  year      = {2004},
  abstract  = {Many construction and facilities management Web sites can be found on the Internet. The interested parties on construction and facilities management Web sites can find databases of best practices, calculators, analyzers, software, expert and decision support systems, neural networks, etc. Technological innovation mainly through changes in the availability of information and communication technology inclusive databases of best practices, calculators, analyzers, software, neural networks, decision support and expert systems that have been provided by a variety of new services developed by the construction and facilities management sectors. Most of all calculators, analyzers, software, decision support and expert systems, neural networks and on-line systems seek to find out how to make the most economic decisions and most of all these decisions are intended only for economic objectives. Alternatives under evaluation have to be evaluated not only from the economic position, but take into consideration qualitative, technical, technological and other characteristics as well. Based on the analysis of the existing calculators, analyzers, information, expert and decision support systems, neural networks and in order to determine most efficient versions of best practices a Decision Support Web-Based System for Construction Innovation (IDSS) was developed by Vilnius Gediminas Technical University.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@article{ZavadskasKaklauskas2004,
  author    = {Zavadskas, Edmundas Kazimieras and Kaklauskas, Arturas},
  title     = {Civil Engineering Decision Support Systems in Lithuania},
  doi       = {10.25643/bauhaus-universitaet.257},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2579},
  year      = {2004},
  abstract  = {Civil engineering decision support systems (construction, building life cycle, refurbishment, total quality management, innovation, etc.) created in Lithuania are described in this paper. The above decision support systems comprise of the following constituent parts: data (database and its management system), models (model base and its management system) and a user interface. Presentation of information in databases may be in conceptual (digital, textual, graphical, photographic, video) and quantitative forms. Quantitative information presented involves criteria systems and subsystems, units of measurement, values and initial weight fully defining the variants provided. The databases were developed providing a multiple criteria analysis of alternatives from economical, infrastructure, technical, technological, qualitative, legislative, social and other perspectives. This information is provided in a user-oriented way. Since the analysis of alternatives is usually performed by taking into account economical, infrastructure, technical, technological, qualitative and other factors, a model-base include models which enable a decision maker to carry out a comprehensive analysis of the variants available and make a proper choice. These systems, related questions and practical case study were analysed the paper.},
  subject      = {Wissensmanagement},
  language  = {en}
}
@article{Zarzycki2008,
  author    = {Zarzycki, Andrzej},
  title     = {Formal Mutations},
  doi       = {10.25643/bauhaus-universitaet.1327},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080814-14016},
  year      = {2008},
  abstract  = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{ZarliStorerKazi2004,
  author    = {Zarli, Alain and Storer, Graham and Kazi, Abdul Samad (Sami)},
  title     = {Building a Better Future: Major Results from the ICCI Cluster Project},
  doi       = {10.25643/bauhaus-universitaet.199},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1994},
  year      = {2004},
  abstract  = {To support research in the building sector and in order to help it move towards a new digital economy, the European Commission under the 5th Framework initiative, especially the IST programme, funded various RTD projects. The opportunity to bring these IST projects together was acknowledged so that stronger links can be created under a clustering umbrella and that, moreover, links of those projects with their RTD environment could be facilitated. This has been the objective of work carried out within the ICCI (IST-2001-33022) Cluster project. This paper introduces the main aims and objectives of the project, and then presents its principal outcomes. In a second part, it synthesises the underlying concepts, technology and tools that will make ICT-based Construction a reality in a near future, and gives recommended actions for the industry, the EC and the Construction ICT R\&D in Europe, giving some benefit of this project experience to the three communities.},
  subject      = {Forschung},
  language  = {en}
}
@inproceedings{ZangSommer,
  author    = {Zang, Di and Sommer, G.},
  title     = {ALGEBRAICALLY EXTENDED 2D IMAGE REPRESENTATION},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.3039},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170327-30396},
  pages     = {10},
  abstract  = {We present an algebraically extended 2D image representation in this paper. In order to obtain more degrees of freedom, a 2D image is embedded into a certain geometric algebra. Combining methods of differential geometry, tensor algebra, monogenic signal and quadrature filter, the novel 2D image representation can be derived as the monogenic extension of a curvature tensor. The 2D spherical harmonics are employed as basis functions to construct the algebraically extended 2D image representation. From this representation, the monogenic signal and the monogenic curvature signal for modeling intrinsically one and two dimensional (i1D/i2D) structures are obtained as special cases. Local features of amplitude, phase and orientation can be extracted at the same time in this unique framework. Compared with the related work, our approach has the advantage of simultaneous estimation of local phase and orientation. The main contribution is the rotationally invariant phase estimation, which enables phase-based processing in many computer vision tasks.},
  subject      = {Architektur <Informatik>},
  language  = {en}
}
@inproceedings{Zaneldin2004,
  author    = {Zaneldin, Essam},
  title     = {Investigate the Impact of Different Resource Allocation Strategies on the Design of Building Projects Using Simulation},
  doi       = {10.25643/bauhaus-universitaet.165},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1658},
  year      = {2004},
  abstract  = {The design of building projects involves several types of resources such as architects, structural engineers, mechanical engineers, electrical engineers, and draftsmen, among others. For design firms to stay in business in this very competitive market, they need to manage their resources in a way that improves productivity and cost effectiveness. This task, however, is not simple and requires thorough analysis of process-level operations, resource use, and productivity. Typically, these operational aspects are the responsibility of the design office manager who assigns available resources to the different design projects to save time and lower design expenses. It is noted that limited studies have been carried out in the literature to model overall organizational operations and behavioral aspects, particularly in firms specialized in the design of building projects. In an effort to simplify the modeling process, a simplified modeling and simulation tool is used in this research. A simulation model representing an actual design office was developed assuming that the office performs designs for small, medium, and large size building projects. The developed model was used to simulate several alternatives and examine various resource assignment strategies. The simulation was conducted over ten years and the resulting productivity and income was measured.},
  subject      = {Baubetrieb},
  language  = {en}
}
@misc{ZandersBein,
  author    = {Zanders, Theresa and Bein, Laura Eleana},
  title     = {Der anonyme Behandlungsschein - von der Idee zur Umsetzung. Ein Handlungsleitfaden},
  editor    = {Calbet i Elias, Laura and Vollmer, Lisa and Zanders, Theresa},
  doi       = {10.25643/bauhaus-universitaet.4716},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220928-47161},
  abstract  = {Der vorliegende Handlungsleitfaden hilft zivilgesellschaftlichen Organisationen und staatlichen Einrichtungen bei der Installation eines anonymen Behandlungs- oder Krankenschein f{\"u}r Menschen ohne Krankenversicherung. Dabei b{\"u}ndelt sich hier der Erfahrungsschatz verschiedener Initiativen aus dem gesamten Bundesgebiet.},
  subject      = {Gesundheitsversorgung},
  language  = {de}
}
@techreport{Zanders,
  type      = {Working Paper},
  author    = {Zanders, Theresa},
  title     = {Teilhabe an Gesundheitsversorgung von aufenthaltsrechtlich illegalisierten Menschen in Deutschland},
  doi       = {10.25643/bauhaus-universitaet.6396},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230530-63968},
  pages     = {25},
  abstract  = {Die Gesundheitsversorgung in Deutschland ist seit den Bismarckschen Sozialreformen ein zunehmend institutionalisierter Teil der staatlichen Daseinsvorsorge im wohlfahrtsstaatlichen Gef{\"u}ge. Institutionalisiert ist die Gesundheitsversorgung in korporatistischer Logik, das heißt in kooperativen Beziehungen zum privatwirtschaftlichen und zivilgesellschaftlichen Sektor und mit Befugnissen der Selbstverwaltung. Zudem fußt das Gesundheitssystem auf einem Versicherungssystem mit lohnabh{\"a}ngigen Abgaben. Institutionalisiert ist die staatliche Daseinsvorsorge jedoch auch in seinen Ausschl{\"u}ssen. So werden Menschen ohne B{\"u}rgerrechte von vielen sozialen Rechten, wie von der Gesundheitsversorgung, ausgeschlossen, obwohl dieser Ausschluss im Widerspruch zu anderen konstitutiven Elementen des Nationalstaats steht. In diesem Working Paper werden die grundlegende Strukturen des deutschen Gesundheitssystems und darin innewohnende Funktionslogiken der Produktion von Teilhabe dargestellt. Abschließend werden in Anlehnung an Kronauer die verschiedenen Dimensionen von Teilhabe an Gesundheitsversorgung in ihrer Produktions- und Ausschlusslogik im Wohlfahrtsregime dargelegt dabei auf die Gruppe der aufenthaltsrechtlich Illegalisierten fokussiert, denen gesellschaftliche Teilhabe in vielen Lebensbereichen, wie auch stark im Gesundheitsbereich, untersagt wird. Gleichzeitig soll dargestellt werden, wie zivilgesellschaftliche Akteur*innen auch gegen staatliche Vorgaben oder Anreize, Teilhabe (wieder-)herstellen.},
  subject      = {Gesundheit},
  language  = {de}
}
@article{ZanderWetzelKuehletal.,
  author    = {Zander, Steffi and Wetzel, Stefanie and K{\"u}hl, Tim and Bertel, Sven},
  title     = {Underlying Processes of an Inverted Personalization Effect in Multimedia Learning - An Eye-Tracking Study},
  series = {Frontiers in Psychology},
  volume    = {2017},
  journal   = {Frontiers in Psychology},
  number    = {Volume 8, Article 2202},
  doi       = {10.3389/fpsyg.2017.02202},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180312-37342},
  pages     = {1 -- 16},
  abstract  = {One of the frequently examined design principles recommendations in multimedia learning is the personalization principle. Based on empirical evidence this principle states that using personalised messages in multimedia learning is more beneficial than using formal language (e.g. using 'you' instead of 'the'). Although there is evidence that these slight changes in regard to the language style affect learning, motivation and the perceived cognitive load, it remains unclear, (1) whether the positive effects of personalised language can be transferred to all kinds of content of learning materials (e.g. specific potentially aversive health issues) and (2) which are the underlying processes (e.g. attention allocation) of the personalization effect. German university students (N= 37) learned symptoms and causes of cerebral haemorrhages either with a formal or a personalised version of the learning material. Analysis revealed comparable results to the few existing previous studies, indicating an inverted personalization effect for potentially aversive learning material. This effect was specifically revealed in regard to decreased average fixation duration and the number of fixations exclusively on the images in the personalised compared to the formal version. This result can be seen as indicators for an inverted effect of personalization on the level of visual attention.},
  subject      = {Lernen},
  language  = {en}
}
@inproceedings{Zahm2003,
  author    = {Zahm, Petra},
  title     = {Der Ausschuss f{\"u}r Sicherheit und Gesundheitsschutz auf Baustellen - Praxiserfahrungen bei der {\"U}berwachung der Baustellenverordnung aus der Sicht der s{\"a}chsischen Arbeitsschutzverwaltung},
  doi       = {10.25643/bauhaus-universitaet.468},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-4689},
  year      = {2003},
  abstract  = {Der Ausschuss f{\"u}r Sicherheit und Gesundheitsschutz auf Baustellen; Praxiserfahrungen bei der {\"U}berwachung der Baustellenverordnung aus der Sicht der s{\"a}chsischen Arbeitsschutzverwaltung},
  subject      = {Arbeitsschutz},
  language  = {de}
}
@misc{Zahlten2005,
  author    = {Zahlten, Andreas},
  title     = {Strategien zur optimalen Baugrunderkundung auf der Basis geostatistischer Baugrundmodelle},
  doi       = {10.25643/bauhaus-universitaet.728},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7283},
  year      = {2005},
  abstract  = {Der Baugrund ist durch seine geologische Entstehung und verschiedener anthropogener Einfl{\"u}sse gepr{\"a}gt. Dadurch ist er in seinen physikalischen und geometrischen Eigenschaften inhomogen. Aufgrund des oftmals geringen Erkundungsumfangs durch wenige punktf{\"o}rmige Aufschl{\"u}sse unterliegen die Baugrunddaten einer zuf{\"a}lligen und systematischen r{\"a}umlichen Streuung. Die Unsicherheit der Messergebnisse ist u.a durch Fehlerquellen in den Messverfahren, in den empirischen Beziehungen zur Bestimmung der Baugrundparameter und bei der Datenbearbeitung sowie in der Heterogenit{\"a}t des Mediums Boden begr{\"u}ndet. In der Praxis werden aus den Erkundungsergebnissen des Baugrundes Schichtenverzeichnisse erstellt, in denen Homogenbereiche definiert werden k{\"o}nnen. Mittels definierter Schichtm{\"a}chtigkeiten oder festgelegter Schichtgrenzen l{\"a}sst sich ein dreidimensionales geologisches Schichtenmodell aufbauen, das aus mehreren miteinander verbundenen zweidimensionalen Datens{\"a}tzen besteht. F{\"u}r Interpolationen innerhalb eines Untersuchungsraumes im geologischen Modell haben sich geostatistische Methoden als geeignet erwiesen. Die Modellierung des Baugrundes mit Hilfe von geostatistischen Verfahren in der Praxis geschieht bisher in der Regel auf der Annahme deterministischer Eingangsgr{\"o}ßen. Die Untersuchung des Einflusses streuender und unsicherer Ausgangskennwerte auf die Ergebnisse der einzelnen Stufen der geostatistischen Modellbildung erlaubt eine bessere Beurteilung der Berechnungsergebnisse. In der Geotechnik wird deshalb versucht, die Vorteile geostatistischer Verfahren in bodenmechanische Nachweise einzubeziehen. Bodenkenngr{\"o}ßen k{\"o}nnen damit qualifizierter und mit verbesserter Aussagesicherheit in die Gr{\"u}ndungsberechnungen und Nachweise eingehen. Baugrunderkundungen sind ein Kostenfaktor bei der Entwicklung und Durchf{\"u}hrung eines Bauprojektes. Der Baugrund kann deswegen unter dem Gesichtspunkt der Wirtschaftlichkeit nur an wenigen Stellen untersucht werden. Großfl{\"a}chige Areale, die z.B. f{\"u}r eine Ansiedlung von Industrie und Gewerbe vorgesehen sind, werden im Rahmen einer Vorerkundung punktuell beprobt. Sind dann innerhalb von Lokalbereichen konkrete Projekte geplant, werden diese Fl{\"a}chen in einer Nacherkundung detailliert und spezifisch untersucht. Ziel dieser Arbeit ist die Entwicklung von Strategien, die es erlauben, unter Einbeziehung von Ergebnissen aus Vorerkundungsuntersuchungen und anderen zus{\"a}tzlichen Informationsquellen eine optimale Anordnung der Punkte f{\"u}r eine Nacherkundung eines Lokalbereiches mit m{\"o}glichst geringen zus{\"a}tzlichen Kosten zu finden. Mit Hilfe einer optimierten Messnetzkonstellation und einer verbesserten Aussagekraft der Messwerte soll die Aussagesicherheit der r{\"a}umlichen Sch{\"a}tzung der Baugrundkenngr{\"o}ßen an unbeprobten Orten verbessert und gesteigert werden. Hierzu gilt es die Unsicherheiten aus dem Messnetz und aus den Baugrundkenngr{\"o}ßen zu analysieren, miteinander zu verkn{\"u}pfen und Strategien zur Reduktion der Unsicherheiten zu entwickeln.},
  subject      = {Baugrund},
  language  = {de}
}
@misc{Zafar,
  type      = {Master Thesis},
  author    = {Zafar, Usman},
  title     = {Probabilistic Reliability Analysis of Wind Turbines},
  doi       = {10.25643/bauhaus-universitaet.3977},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Renewable energy use is on the rise and these alternative resources of energy can help combat with the climate change. Around 80\% of the world's electricity comes from coal and petroleum however, the renewables are the fastest growing source of energy in the world. Solar, wind, hydro, geothermal and biogas are the most common forms of renewable energy. Among them, wind energy is emerging as a reliable and large-scaled source of power production. The recent research and confidence in the performance has led to the construction of more and bigger wind turbines around the world. As wind turbines are getting bigger, a concern regarding their safety is also in discussion. Wind turbines are expensive machinery to construct and the enormous capital investment is one of the main reasons, why many countries are unable to adopt to the wind energy. Generally, a reliable wind turbine will result in better performance and assist in minimizing the cost of operation. If a wind turbine fails, it's a loss of investment and can be harmful for the surrounding habitat. This thesis aims towards estimating the reliability of an offshore wind turbine. A model of Jacket type offshore wind turbine is prepared by using finite element software package ABAQUS and is compared with the structural failure criteria of the wind turbine tower. UQLab, which is a general uncertainty quantification framework developed at ETH Z{\"u}rich, is used for the reliability analysis. Several probabilistic methods are included in the framework of UQLab, which include Monte Carlo, First Order Reliability Analysis and Adaptive Kriging Monte Carlo simulation. This reliability study is performed only for the structural failure of the wind turbine but it can be extended to many other forms of failures e.g. reliability for power production, or reliability for different component failures etc. It's a useful tool that can be utilized to estimate the reliability of future wind turbines, that could result in more safer and better performance of wind turbines.},
  subject      = {Windturbine},
  language  = {en}
}
@phdthesis{Zacharias,
  author    = {Zacharias, Christin},
  title     = {Numerical Simulation Models for Thermoelastic Damping Effects},
  doi       = {10.25643/bauhaus-universitaet.4735},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221116-47352},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {191},
  abstract  = {Finite Element Simulations of dynamically excited structures are mainly influenced by the mass, stiffness, and damping properties of the system, as well as external loads. The prediction quality of dynamic simulations of vibration-sensitive components depends significantly on the use of appropriate damping models. Damping phenomena have a decisive influence on the vibration amplitude and the frequencies of the vibrating structure. However, developing realistic damping models is challenging due to the multiple sources that cause energy dissipation, such as material damping, different types of friction, or various interactions with the environment. This thesis focuses on thermoelastic damping, which is the main cause of material damping in homogeneous materials. The effect is caused by temperature changes due to mechanical strains. In vibrating structures, temperature gradients arise in adjacent tension and compression areas. Depending on the vibration frequency, they result in heat flows, leading to increased entropy and the irreversible transformation of mechanical energy into thermal energy. The central objective of this thesis is the development of efficient simulation methods to incorporate thermoelastic damping in finite element analyses based on modal superposition. The thermoelastic loss factor is derived from the structure's mechanical mode shapes and eigenfrequencies. In subsequent analyses that are performed in the time and frequency domain, it is applied as modal damping. Two approaches are developed to determine the thermoelastic loss in thin-walled plate structures, as well as three-dimensional solid structures. The realistic representation of the dissipation effects is verified by comparing the simulation results with experimentally determined data. Therefore, an experimental setup is developed to measure material damping, excluding other sources of energy dissipation. The three-dimensional solid approach is based on the determination of the generated entropy and therefore the generated heat per vibration cycle, which is a measure for thermoelastic loss in relation to the total strain energy. For thin plate structures, the amount of bending energy in a modal deformation is calculated and summarized in the so-called Modal Bending Factor (MBF). The highest amount of thermoelastic loss occurs in the state of pure bending. Therefore, the MBF enables a quantitative classification of the mode shapes concerning the thermoelastic damping potential. The results of the developed simulations are in good agreement with the experimental results and are appropriate to predict thermoelastic loss factors. Both approaches are based on modal superposition with the advantage of a high computational efficiency. Overall, the modeling of thermoelastic damping represents an important component in a comprehensive damping model, which is necessary to perform realistic simulations of vibration processes.},
  subject      = {Werkstoffd{\"a}mpfung},
  language  = {en}
}
@article{ZabelBrehm,
  author    = {Zabel, Volkmar and Brehm, Maik},
  title     = {Das dynamische Verhalten von Eisenbahnbr{\"u}cken mit kurzer Spannweite - numerische und experimentelle Untersuchungen},
  series = {Bauingenieur, D-A-CH-Mitteilungsblatt},
  journal   = {Bauingenieur, D-A-CH-Mitteilungsblatt},
  abstract  = {Das dynamische Verhalten von Eisenbahnbr{\"u}cken mit kurzer Spannweite - numerische und experimentelle Untersuchungen},
  subject      = {Angewandte Mathematik},
  language  = {de}
}
@phdthesis{Zabel2003,
  author    = {Zabel, Volkmar},
  title     = {Anwendungen der Wavelet-Transformation in der Systemidentifikation},
  doi       = {10.25643/bauhaus-universitaet.5},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040202-66},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2003},
  abstract  = {Die meisten traditionellen Methoden der Systemidentifikation beruhen auf der Abbildung der Meßwerte entweder im Zeit- oder im Frequenzbereich. In j{\"u}ngerer Zeit wurden im Zusammenhang mit der Systemidentifikation Verfahren entwicklet, die auf der Anwendung der Wavelet-Transformation beruhen. Das Ziel dieser Arbeit war, einen Algorithmus zu entwickeln, der die Identifikation von Parametern eines Finite-Elemente-Modells, das ein experimentell untersuchtes mechanisches System beschreibt, erm{\"o}glicht. Es wurde eine Methode erarbeitet, mit deren Hilfe die gesuchten Parameter durch L{\"o}sen eines Systems von Bewegungsgleichungen im Zeit-Skalen-Bereich ermittelt werden. Durch die Anwendung dieser Darstellung k{\"o}nnen Probleme, die durch Rauschanteile in den Meßdaten entstehen, reduziert werden. Die Ergebnisse numerischer Simulation und einer experimentellen Studie best{\"a}tigen die Vorteile einer Anwendung der Wavelet-Transformation in der vorgeschlagenen Weise. ...},
  subject      = {Wavelet},
  language  = {de}
}
@article{Zabel,
  author    = {Zabel, Volkmar},
  title     = {An application of discrete wavelet analysis and connection coefficients to parametric system identification},
  series = {Structural Health Monitoring},
  journal   = {Structural Health Monitoring},
  pages     = {5 -- 18},
  abstract  = {An application of discrete wavelet analysis and connection coefficients to parametric system identification},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@phdthesis{Zabel,
  author    = {Zabel, Volkmar},
  title     = {Operational modal analysis - Theory and aspects of application in civil engineering},
  editor    = {K{\"o}nke, Carsten and Lahmer, Tom and Rabczuk, Timon},
  doi       = {10.25643/bauhaus-universitaet.4006},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191030-40061},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {263},
  abstract  = {In recent years the demand on dynamic analyses of existing structures in civil engineering has remarkably increased. These analyses are mainly based on numerical models. Accordingly, the generated results depend on the quality of the used models. Therefore it is very important that the models describe the considered systems such that the behaviour of the physical structure is realistically represented. As any model is based on assumptions, there is always a certain degree of uncertainty present in the results of a simulation based on the respective numerical model. To minimise these uncertainties in the prediction of the response of a structure to a certain loading, it has become common practice to update or calibrate the parameters of a numerical model based on observations of the structural behaviour of the respective existing system. The determination of the behaviour of an existing structure requires experimental investigations. If the numerical analyses concern the dynamic response of a structure it is sensible to direct the experimental investigations towards the identification of the dynamic structural behaviour which is determined by the modal parameters of the system. In consequence, several methods for the experimental identification of modal parameters have been developed since the 1980ies. Due to various technical restraints in civil engineering which limit the possibilities to excitate a structure with economically reasonable effort, several methods have been developed that allow a modal identification form tests with an ambient excitation. The approach of identifying modal parameters only from measurements of the structural response without precise knowledge of the excitation is known as output-only or operational modal analysis. Since operational modal analysis (OMA) can be considered as a link between numerical modelling and simulation on the one hand and the dynamic behaviour of an existing structure on the other hand, the respective algorithms connect both the concepts of structural dynamics and mathematical tools applied within the processing of experimental data. Accordingly, the related theoretical topics are revised after an introduction into the topic. Several OMA methods have been developed over the last decades. The most established algorithms are presented here and their application is illustrated by means of both a small numerical and an experimental example. Since experimentally obtained results always underly manifold influences, an appropriate postprocessing of the results is necessary for a respective quality assessment. This quality assessment does not only require respective indicators but should also include the quantification of uncertainties. One special feature in modal testing is that it is common to instrument the structure in different sensor setups to improve the spacial resolution of identified mode shapes. The modal information identified from tests in several setups needs to be merged a posteriori. Algorithms to cope with this problem are also presented. Due to the fact that the amount of data generated in modal tests can become very large, manual processing can become extremely expensive or even impossible, for example in the case of a long-term continuous structural monitoring. In these situations an automated analysis and postprocessing are essential. Descriptions of respective methodologies are therefore also included in this work. Every structural system in civil engineering is unique and so also every identification of modal parameters has its specific challenges. Some aspects that can be faced in practical applications of operational modal analysis are presented and discussed in a chapter that is dedicated specific problems that an analyst may have to overcome. Case studies of systems with very close modes, with limited accessibility as well as the application of different OMA methods are described and discussed. In this context the focus is put on several types of uncertainty that may occur in the multiple stages of an operational modal analysis. In literature only very specific uncertainties at certain stages of the analysis are addressed. Here, the topic of uncertainties has been considered in a broader sense and approaches for treating respective problems are suggested. Eventually, it is concluded that the methodologies of operatinal modal analysis and related technical solutions have been well-engineered already. However, as in any discipline that includes experiments, a certain degree of uncertainty always remains in the results. From these conclusions has been derived a demand for further research and development that should be directed towards the minimisation of these uncertainties and to a respective optimisation of the steps and corresponding parameters included in an operational modal analysis.},
  subject      = {Modalanalyse},
  language  = {en}
}
@phdthesis{Yuli,
  author    = {Yuli, Nensi Golda},
  title     = {The Spatial Concept at Moslem Settlements in Current Context of Modern Indonesia Using Phenomenology Method . Case Study: Pathok Negoro Area in Yogyakarta, Indonesia},
  doi       = {10.25643/bauhaus-universitaet.3125},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170419-31257},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {206},
  abstract  = {Settlement is human place to live and do various activities (Finch, 1980). Concept of settlement layout is closely associated with human and a set of thoughts and behaviors. In this case, idea of pattern of activities in a society that is core of a culture becomes main factor in process of formation of houses and environment in a settlement. Factors which affecting form (physical) of architecture in a settlement environment are socio-cultural, economic, and religious determinant factor that manifested architectural realization (Rapoport, 1969). Yogyakarta as the continuation of kingdom city in the Java Island finally exists as an Islamic kingdom that still remain to survive up to now. Impacts of this issue is appearance of various Moslem settlements to support typical character of an Islamic Kingdom. Mlangi is an area of oldest Moslem settlements in Yogyakarta has not been explored in details for progress especially in physical glasses recently. Everything basic group and individual who arrange houses and residences, starts from how it has spatial concept alone. Although concept is a very abstract thing to explain in details, but its existence can be detected by how they created their physical environment. This research conducted by these research questions: (1) What are spatial concepts owned by people in Mlangi and (2) How do spatial concepts owned by the people affect the settlements pattern? Process to search spatial concept owned by the people in Moslem residence, making Mlangi as study area, was approached by using phenomenological research method. The researcher have to self-involved directly in unstructured interviews, but remained in guideline framework of in interviews to make research process effective. Fistly, the researcher interviewed the key person, they are the head of Mlangi administration (pak Dukuh) in Mlangi and Sawahan. They were then give advices to who was capable person that could draw the spatial concept and had many story and knew the history of the settlements. Step by step of interview guided from one informant to next informant when the information had been told repeatedly. The next informant based on the last informant advice or who had close relationship with the last theme appeared. To complete the narration and draw the result of interview, researcher have to add additional information with photograph and descriptive picture that can be draw the settlement empirically. In process, 17 information units which found in field were consistent with sequence of interview events and flowing of theme to theme associated with Moslem residence of residence. Finally the interviews succeeded in abstracting 16 themes that may be classified into historic, socio-cultural, and spatial-concept dimensions in Mlangi. Process of analysis to find spatial concept owned by the people in Moslem settlements was carried out by dialogue of themes to find available substantive relationship. Four concepts successfully analyzed consist of concepts of personage, concept of religious implementation, concept of Jero-Jaba and concept of Interest. The four concepts are really associated with one and others in understanding how spatial concept owned by the people affects residence they occupy. Yet, concept of Jero-Jaba bases all concepts of people in Mlangi . This concept can be used to draw red yarn on how they utilize communal spaces in residence and layout rooms of their individual houses. This concept also eternalize residence patterns existing in Mlangi now where residence does not experience many changes from starting of this residence existence (from detection of generation currently still living), namely residence patterns concentrate on orientation to Masjid Pathok Negoro of Mlangi. This research was opening the potential research area, at least for the sociology, anthropology and demography research interest. So many unique character in Mlangi if looked at from how they maintain their spatial concept and manifested in their daily activities. How the people will concern only for the religious activities and the economic concern only for survival aspect in live. Keywords: spatial concept, moslem settlements, phenomenology method, Indonesia,},
  subject      = {Siedlung},
  language  = {en}
}
@phdthesis{Yousefi,
  author    = {Yousefi, Hassan},
  title     = {Discontinuous propagating fronts: linear and nonlinear systems},
  doi       = {10.25643/bauhaus-universitaet.4717},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220922-47178},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {356},
  abstract  = {The aim of this study is controlling of spurious oscillations developing around discontinuous solutions of both linear and non-linear wave equations or hyperbolic partial differential equations (PDEs). The equations include both first-order and second-order (wave) hyperbolic systems. In these systems even smooth initial conditions, or smoothly varying source (load) terms could lead to discontinuous propagating solutions (fronts). For the first order hyperbolic PDEs, the concept of central high resolution schemes is integrated with the multiresolution-based adaptation to capture properly both discontinuous propagating fronts and effects of fine-scale responses on those of larger scales in the multiscale manner. This integration leads to using central high resolution schemes on non-uniform grids; however, such simulation is unstable, as the central schemes are originally developed to work properly on uniform cells/grids. Hence, the main concern is stable collaboration of central schemes and multiresoltion-based cell adapters. Regarding central schemes, the considered approaches are: 1) Second order central and central-upwind schemes; 2) Third order central schemes; 3) Third and fourth order central weighted non-oscillatory schemes (central-WENO or CWENO); 4) Piece-wise parabolic methods (PPMs) obtained with two different local stencils. For these methods, corresponding (nonlinear) stability conditions are studied and modified, as well. Based on these stability conditions several limiters are modified/developed as follows: 1) Several second-order limiters with total variation diminishing (TVD) feature, 2) Second-order uniformly high order accurate non-oscillatory (UNO) limiters, 3) Two third-order nonlinear scaling limiters, 4) Two new limiters for PPMs. Numerical results show that adaptive solvers lead to cost-effective computations (e.g., in some 1-D problems, number of adapted grid points are less than 200 points during simulations, while in the uniform-grid case, to have the same accuracy, using of 2049 points is essential). Also, in some cases, it is confirmed that fine scale responses have considerable effects on higher scales. In numerical simulation of nonlinear first order hyperbolic systems, the two main concerns are: convergence and uniqueness. The former is important due to developing of the spurious oscillations, the numerical dispersion and the numerical dissipation. Convergence in a numerical solution does not guarantee that it is the physical/real one (the uniqueness feature). Indeed, a nonlinear systems can converge to several numerical results (which mathematically all of them are true). In this work, the convergence and uniqueness are directly studied on non-uniform grids/cells by the concepts of local numerical truncation error and numerical entropy production, respectively. Also, both of these concepts have been used for cell/grid adaptations. So, the performance of these concepts is also compared by the multiresolution-based method. Several 1-D and 2-D numerical examples are examined to confirm the efficiency of the adaptive solver. Examples involve problems with convex and non-convex fluxes. In the latter case, due to developing of complex waves, proper capturing of real answers needs more attention. For this purpose, using of method-adaptation seems to be essential (in parallel to the cell/grid adaptation). This new type of adaptation is also performed in the framework of the multiresolution analysis. Regarding second order hyperbolic PDEs (mechanical waves), the regularization concept is used to cure artificial (numerical) oscillation effects, especially for high-gradient or discontinuous solutions. There, oscillations are removed by the regularization concept acting as a post-processor. Simulations will be performed directly on the second-order form of wave equations. It should be mentioned that it is possible to rewrite second order wave equations as a system of first-order waves, and then simulated the new system by high resolution schemes. However, this approach ends to increasing of variable numbers (especially for 3D problems). The numerical discretization is performed by the compact finite difference (FD) formulation with desire feature; e.g., methods with spectral-like or optimized-error properties. These FD methods are developed to handle high frequency waves (such as waves near earthquake sources). The performance of several regularization approaches is studied (both theoretically and numerically); at last, a proper regularization approach controlling the Gibbs phenomenon is recommended. At the end, some numerical results are provided to confirm efficiency of numerical solvers enhanced by the regularization concept. In this part, shock-like responses due to local and abrupt changing of physical properties, and also stress wave propagation in stochastic-like domains are studied.},
  subject      = {Partielle Differentialgleichung},
  language  = {en}
}
@inproceedings{Yatsuka2000,
  author    = {Yatsuka, Hajime},
  title     = {Global standard?},
  doi       = {10.25643/bauhaus-universitaet.1207},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-12071},
  year      = {2000},
  abstract  = {Wissenschaftliches Kolloquium vom 14. bis 16. Oktober 1999 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚global village - Perspektiven der Architektur'},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{Yansong,
  author    = {Yansong, Ma},
  title     = {DESIGNING THE REALIZABLE UTOPIA},
  editor    = {Faschingeder, Kristian and Jormakka, Kari and Korrek, Norbert and Pfeifer, Olaf and Zimmermann, Gerd},
  publisher = {Verlag der Bauhaus-Universit{\"a}t},
  address   = {Weimar},
  organization    = {MAD Architects},
  isbn      = {978-3-86068-417-7},
  doi       = {10.25643/bauhaus-universitaet.3059},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170329-30598},
  pages     = {7},
  abstract  = {MAD is a Beijing-based architectural design studio. In their work, they are examining and developing a unique concept of futurism through current theoretical practice in architectural design, landscape design, and urban planning. In 2006, MAD was awarded the Architectural League Young Architects Forum Award. In the same year, MAD was shown at the 'MAD in China' exhibition in Venice during the Architecture Bienniale, and the 'MAD Under Construction' exhibition at the Tokyo Gallery in Beijing. MAD's conceptual proposal, Super Star - A mobile China Town was exhibited in the Uneternal City of the 11th Architecture Biennale in Venice. Ma Yansong received his Master of Architecture from the Yale University School of Architecture in 2002. Prior to founding MAD in 2004, Mr. Ma worked as a project designer with Zaha Hadid Architects and Eisenman Architects. He also taught architecture at the Central Academy of Fine Arts in Beijing. In 2008, one of his built works, Hongluo Clubhouse, was nominated as one of the 100 designs by the London Design Museum. He was also nominated as one of the 20 most influential young architects today by ICON.},
  subject      = {Architekturtheorie},
  language  = {en}
}
@article{YangBudarapuMahapatraetal.,
  author    = {Yang, Shih-Wei and Budarapu, Pattabhi Ramaiah and Mahapatra, D.R. and Bordas, St{\´e}phane Pierre Alain and Zi, Goangseup and Rabczuk, Timon},
  title     = {A Meshless Adaptive Multiscale Method for Fracture},
  series = {Computational Materials Science},
  journal   = {Computational Materials Science},
  pages     = {382 -- 395},
  abstract  = {A Meshless Adaptive Multiscale Method for Fracture},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{Yaneva2008,
  author    = {Yaneva, Albena},
  title     = {Obsolete ways of designing : scale models at the time of digital media technologies},
  doi       = {10.25643/bauhaus-universitaet.1310},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080729-13827},
  year      = {2008},
  abstract  = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'},
  subject      = {Architektur},
  language  = {en}
}
@inproceedings{YamabeKawamuraTani2004,
  author    = {Yamabe, Yuichiro and Kawamura, Hiroshi and Tani, Akinori},
  title     = {Optimal Design for Recurrent Architecture Network Harmonized with Circulation-type Societies by Applying Genetic Algorithms to Multiagent Model},
  doi       = {10.25643/bauhaus-universitaet.189},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1892},
  year      = {2004},
  abstract  = {In this paper, a circulation-type society is expressed by recurrent architecture network described with multi-agent model which consists of the following agents: user, builder, reuse maker, fabricator, waste disposer, material maker and earth bank (see Fig.1). Structural members, materials, resources and monies move among these agents. Each agent has its own rules and aims, regarding structural damages, lifetime, cost reduction, numbers of structural members and structural systems. Reasonable prices of members (fresh, reused, recycled and disposed) can be optimized by GAs in this system considering equal distribution of monies among agents.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@inproceedings{YahiaouiHensenSoethout2004,
  author    = {Yahiaoui, Azzedine and Hensen, Jan and Soethout, Luc},
  title     = {Developing CORBA-based distributed control and building performance environments by run-time coupling},
  doi       = {10.25643/bauhaus-universitaet.134},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1347},
  year      = {2004},
  abstract  = {Communication software and distributed applications for control and building performance simulation software must be reliable, efficient, flexible, and reusable. This paper reports on progress of a project, which aims to achieve better integrated building and systems control modeling in building performance simulation by run-time coupling of distributed computer programs. These requirements motivate the use of the Common Object Request Broker Architecture (CORBA), which offers sufficient advantage than communication within simple abstraction. However, set up highly available applications with CORBA is hard. Neither control modeling software nor building performance environments have simple interface with CORBA objects. Therefore, this paper describes an architectural solution to distributed control and building performance software tools with CORBA objects. Then, it explains how much the developement of CORBA based distributed building control simulation applications is difficult. The paper finishes by giving some recommendations.},
  subject      = {Ingenieurbau},
  language  = {en}
}
@article{YabukiYoshimura2004,
  author    = {Yabuki, Nobuyoshi and Yoshimura, Yutaka},
  title     = {An Evaluation System for Steel Structures of Hydroelectric Power Stations based on Fault Tree Analysis and Performance Maps},
  doi       = {10.25643/bauhaus-universitaet.256},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2564},
  year      = {2004},
  abstract  = {This paper presents an evaluation system for steel structures of hydroelectric power stations, including hydraulic gates and penstocks, based on Fault Tree Analyasis (FTA) and performance maps. This system consists of fault tree diagrams of FTA, performance maps, design and analysis systems, and engineerin databases. These four modules are integrated by appropriate hyperlinks so that the user of this system can use it easily and seamlessly. A well developed system was applied to some illustrative example cases, and they showed that the developed methodology and system worked well and the users found the system useful and effective for their maintenance tasks at powerstations.},
  subject      = {Wissensmanagement},
  language  = {en}
}
@article{YabukiKotaniShitani2004,
  author    = {Yabuki, Nobuyoshi and Kotani, Jun and Shitani, Tomoaki},
  title     = {A Steel Bridge Design System Architecture using VR-CAD and Web Service-based Multi-Agents},
  doi       = {10.25643/bauhaus-universitaet.214},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2146},
  year      = {2004},
  abstract  = {This paper presents a new design environment based on Multi-Agents and Virtual Reality (VR). In this research, a design system with a virtual reality function was developed. The virtual world was realized by using GL4Java, liquid crystal shutter glasses, sensor systems, etc. And the Multi-Agent CAD system with product models, which had been developed before, was integrated with the VR design system. A prototype system was developed for highway steel plate girder bridges, and was applied to a design problem. The application verified the effectiveness of the developed system.},
  subject      = {Mehragentensystem},
  language  = {en}
}
@article{XuMourrainGalligoetal.,
  author    = {Xu, G. and Mourrain, B. and Galligo, A. and Rabczuk, Timon},
  title     = {High-quality construction of analysis-suitable trivariate NURBS solids by reparameterization methods},
  series = {Computational Mechanics},
  journal   = {Computational Mechanics},
  abstract  = {High-quality construction of analysis-suitable trivariate NURBS solids by reparameterization methods},
  subject      = {Angewandte Mathematik},
  language  = {en}
}
@article{XinHijaziKoenigetal.,
  author    = {Xin, Li and Hijazi, Ihab Hamzi and K{\"o}nig, Reinhard and Lv, Zhihan and Zhong, Chen and Schmitt, Gerhard},
  title     = {Assessing Essential Qualities of Urban Space with Emotional and Visual Data Based on GIS Technique},
  series = {ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION},
  journal   = {ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION},
  doi       = {10.3390/ijgi5110218},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170401-30995},
  abstract  = {Finding a method to evaluate people's emotional responses to urban spaces in a valid and objective way is fundamentally important for urban design practices and related policy making. Analysis of the essential qualities of urban space could be made both more effective and more accurate using innovative information techniques that have become available in the era of big data. This study introduces an integrated method based on geographical information systems (GIS) and an emotion-tracking technique to quantify the relationship between people's emotional responses and urban space. This method can evaluate the degree to which people's emotional responses are influenced by multiple urban characteristics such as building shapes and textures, isovist parameters, visual entropy, and visual fractals. The results indicate that urban spaces may influence people's emotional responses through both spatial sequence arrangements and shifting scenario sequences. Emotional data were collected with body sensors and GPS devices. Spatial clustering was detected to target effective sampling locations; then, isovists were generated to extract building textures. Logistic regression and a receiver operating characteristic analysis were used to determine the key isovist parameters and the probabilities that they influenced people's emotion. Finally, based on the results, we make some suggestions for design professionals in the field of urban space optimization.},
  subject      = {Stadt},
  language  = {en}
}
@inproceedings{XieIssaO'Brien2004,
  author    = {Xie, Haiyan and Issa, Raja and O'Brien, William},
  title     = {Structure of a Formal User Model for Construction Information Retrieval},
  doi       = {10.25643/bauhaus-universitaet.129},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1296},
  year      = {2004},
  abstract  = {Information science researchers and developers have spent many years addressing the problem of retrieving the exact information needed and using it for analysis purposes. In informationseeking dialogues, the user, i.e. construction project manager or supplier, often asks questions about specific aspects of the tasks they want to perform. But most of the time it is difficult for the software systems to unambiguously understand their overall intentions. The existence of information tunnels (Tannenbaum 2002) aggravates this phenomenon. This study includes a detailed case study of the material management process in the construction industry. Based on this case study, the structure of a formal user model for information retrieval in construction management is proposed. This prototype user model will be incorporated into the system design for construction information management and retrieval. This information retrieval system is a user-centered product based on the development of a user configurable visitor mechanism for managing and retrieving project information without worrying too much about the underlying data structure of the database system. An executable UML model combined with OODB is used to reduce the ambiguity in the user's intentions and to achieve user satisfaction.},
  subject      = {Bauwerk},
  language  = {en}
}
@phdthesis{Wuendsch,
  author    = {W{\"u}ndsch, Charlene},
  title     = {Entrepreneurial Branding: Eine praxistheoretische Analyse markenbildender Strategiepraktiken bei Startups},
  doi       = {10.25643/bauhaus-universitaet.6468},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20231016-64680},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {229},
  abstract  = {Gr{\"u}ndungsunternehmen stehen vor der Herausforderung, eine unternehmerische Leistung zu entwickeln und gleichzeitig eine Markenidentit{\"a}t aufzubauen. Dabei sind sie mit finanziellen, personellen und strukturellen Besonderheiten konfrontiert, aber auch mit Unbekanntheit und Kundenunsicherheit. Die Dissertation zielt darauf ab, durch die Analyse markenbildender Strategiepraktiken einen Beitrag zur wissenschaftlichen Auseinandersetzung mit der Markenbildung bei Gr{\"u}ndungsunternehmen zu leisten und praktische Implikationen f{\"u}r angehende Gr{\"u}nder:innen sowie akademische Startup-Inkubatoren abzuleiten. Der Fokus liegt dabei auf Gr{\"u}ndungsvorhaben und Startups in der Vorgr{\"u}ndungs- oder fr{\"u}hen Gr{\"u}ndungsphase aus dem Hochschulumfeld. Zur Analyse markenbildender Strategiepraktiken wird der Strategy-as-Practice Ansatz (SAP) angewendet. Die qualitative Forschungsmethodik wird genutzt, um Handlungsmuster bestimmter Akteursgruppen in diesem spezifischen Kontext zu rekonstruieren. Beobachtungen, Interviews und Dokumente im Feld dienen als Grundlage f{\"u}r die Forschung. Die Ergebnisse dieser Arbeit liefern umfassende Einblicke in die markenbildende Praxis bei Gr{\"u}ndungsunternehmen. Auf Basis dieser Erkenntnisse wurde ein Modell entwickelt, das Komponenten beschreibt, die zusammen einen Handlungsrahmen f{\"u}r die Markenbildung in emergenten Strategiekontexten wie der Unternehmensgr{\"u}ndung bilden. Dieses Modell bietet die M{\"o}glichkeit, sich vor dem Hintergrund der gr{\"u}ndungsspezifischen Rahmenbedingungen mit der Markenentwicklung in der fr{\"u}hen Gr{\"u}ndungsphase auseinanderzusetzen und sie systematisch in das Gr{\"u}ndungsvorhaben zu implementieren.},
  subject      = {Entrepreneurship},
  language  = {de}
}
@misc{Woehlecke2004,
  type      = {Master Thesis},
  author    = {W{\"o}hlecke, Guido},
  title     = {Numerische Auswertung des Einflusses von Baugrundkenngr{\"o}ßen auf die Erstellung von Baugrundmodellen f{\"u}r ein Linienbauwerk},
  doi       = {10.25643/bauhaus-universitaet.673},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6732},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {Die Entstehung des Baugrundes ist gepr{\"a}gt durch die Genese und von anthropogenen Einfl{\"u}ssen. In der Arbeit werden auf der Grundlage isotroper Betrachtungen im Halbraum Prognosen f{\"u}r unbeprobte Bereiche eines linienf{\"o}rmigen Bauwerkes erstellt. Aufbauend auf dem bekannten Algorithmus der Geostatistik werden Berechnungen mit deterministischen Eingangsgr{\"o}ßen durchgef{\"u}hrt. Diese sind in einem Datensatz zusammengefasst und gehen ohne Unterteilung bzw. Bildung von (Homogen)Bereichen in die Sch{\"a}tzungen ein. Zur Anwendung kam dabei die an der Professur Grundbau der Bauhaus-Universit{\"a}t Weimar entwickelte Software GeoStat. Nach der Variogrammanalyse folgten geostatistische Berechnungen mit dem Ordinary und dem Universal Kriging. Der genutzte Datensatz unterlag dabei mehrfachen Modifikationen, um Unterschiede in der Ergebnisbildung beobachten zu k{\"o}nnen. Die Krigingsch{\"a}tzungen wurden f{\"u}r subjektiv ausgew{\"a}hlte Beprobungspunkte erstellt, die mit Referenzprofilen verglichen werden konnten. Im Ergebnis traten f{\"u}r alle durchgef{\"u}hrten Simulationen erhebliche Abweichungen der berechneten Werte zu den Referenzprofilen auf. Die Verwendung von Datens{\"a}tzen ohne eine vorherige Bearbeitung und Unterteilung in Homogenbereiche erweist sich als nicht ratsam. Vielmehr ist es notwendig kompliziertere Krigingvarianten einzusetzen bzw. die benutzten Methoden mit anderen Verfahren zu kombinieren.},
  subject      = {Geostatistik},
  language  = {de}
}
@article{Wyss2003,
  author    = {Wyss, Beat},
  title     = {News from Eurotopia : a message in a bottle between Manifesto and history by Moholy-Nagy},
  doi       = {10.25643/bauhaus-universitaet.1244},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080228-13096},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Moholy-Nagy},
  language  = {en}
}
@phdthesis{Wuttke2004,
  author    = {Wuttke, Frank},
  title     = {Beitrag zur Standortidentifizierung mit Oberfl{\"a}chenwellen},
  doi       = {10.25643/bauhaus-universitaet.653},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20050708-6874},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2004},
  abstract  = {In der Dissertation wurden unterschiedliche Methoden zur Standortidentifizierung mit Oberfl{\"a}chenwellen analysiert. Es wurden neue Methoden zur Parameteridentifikation unter Nutzung von Oberfl{\"a}chenwellen vorgeschlagen. Die Ziele der Arbeit k{\"o}nnen wie folgt definiert werden: a) Die Entwicklung eines geeigneten theoretischen Modells als Grundlage zur Untersuchung des Standortes hinsichtlich vorhandener Bodensteifigkeiten. b) Die Entwicklung einer neuen Inversionsmethodik unter Ber{\"u}cksichtigung aller auftretenden Moden im Oberfl{\"a}chenwellenfeld. Die Erstellung eines Modells des vertikal heterogenen Untergrundes erfolgte im Frequenz-bereichs f{\"u}r beliebig geschichtete B{\"o}den, aufbereitet durch weitestgehend analytische Formulierungen. Durch Nutzung beliebiger horizontaler, elastisch-isotroper Schichten konnte die vertikale Heterogenit{\"a}t approximiert werden. Die Definition der Green'schen Funktionen wurde in Form der Reflexions- und Transmissionskoeffizienten durchgef{\"u}hrt. Die L{\"o}sung des formulierten Halbraumproblems erfolgte unter Verwendung der Konturintegration. Dazu wurde die Vorgehensweise der bestehenden L{\"o}sung des homogenen Halbraums auf das Problem des geschichteten Mediums {\"u}bertragen. Die daraus sich ergebende L{\"o}sung ist in ein K{\"o}rperwellen- und ein Oberfl{\"a}chenwellenfeld separiert. Der Vorteil dieser analytischen Betrachtungsweise liegt in der eindeutigen Zuordnungsm{\"o}glichkeit der erhaltenen L{\"o}sungen zu Wellentypen und in der klaren Dispersionscharakteristik der berechneten Modelle. Im Gegensatz dazu liefern numerische L{\"o}sungen, wie FEM, immer ein Wellenfeld, in dem die Wellentypen zugeordnet bzw. interpretiert werden m{\"u}ssen. Mit Hilfe der synthetischen Bodenmodellierung wird das Verhalten von geschichteten B{\"o}den bei durchlaufenden Oberfl{\"a}chenwellenfeldern simuliert und untersucht. F{\"u}r die Untersuchung der Profile wurde haupts{\"a}chlich die Modale Superposition von Oberfl{\"a}chenwellen und die Wellenzahl-Integration verwendet. Bei der Analyse von Oberfl{\"a}chenwellenfeldern in vorhandenen Medien sind abweichend von den {\"u}blichen seismischen Methoden spezielle Untersuchungsmethoden zur Ermittlung der vorhandenen Dispersion notwendig. Zur Durchf{\"u}hrung der Dispersionsanalyse wird in geotechnischen Untersuchungen in der Regel das Phasen-Differenzen-Verfahren (SASW) genutzt. Aufgrund der beschr{\"a}nkten Aussagef{\"a}higkeit dieses Verfahrens zu auftretenden h{\"o}heren Moden werden verbesserte Analysemethoden zur experimentellen Auswertung hinzugezogen. Diese Methoden nutzen zur Informationsgewinnung das r{\"a}umlich ausgedehnte Wellenfeld. Ausgehend von dem Dispersionsverhalten kann die Bodenstruktur mittels inverser Methoden bestimmt werden. F{\"u}r die gemeinsame Inversion der in den Messungen vorhandenen Moden wurde ein entsprechendes Inversionsverfahren abgeleitet. Als Grundlage der Inversion wurde ein Verfahren des kleinsten Fehlerquadrates gew{\"a}hlt. Der Vorteil hinsichtlich einer effizienten und stabilen Inversion unter Nutzung dieser Methodik {\"u}berwiegt den Nachteil der lokalen Suche nach dem Fehlerminimum. Zum Erreichen der stabilen und zielgerichteten Inversion wird der Levenberg-Marquardt Algorithmus, zusammen mit der Wichtung der Dispersions{\"a}ste entsprechend ihres Anregungsverhaltens in den Dispersionsspektren, eingesetzt. Von Vorteil hat sich innerhalb der Arbeit die gleichzeitige Behandlung von theoretischen und experimentellen Parameterstudien erwiesen, da sich Ergebnisse und Erkenntnisse beider Seiten erg{\"a}nzten. Eine Interpretation von Felddaten kann damit weitaus sicherer durchgef{\"u}hrt werden. Zus{\"a}tzlich konnten die erarbeiteten experimentellen und theoretischen Verfahren gegenseitig {\"u}berpr{\"u}ft werden.},
  subject      = {Inversionsalgorithmus},
  language  = {de}
}
@inproceedings{WudtkeWerner,
  author    = {Wudtke, Idna and Werner, Frank},
  title     = {MODELLING OF MATERIAL PHENOMENA OF STEEL IN CONSTITUTIVE RELATIONS IN CONTEXT OF WELDING},
  editor    = {G{\"u}rlebeck, Klaus and K{\"o}nke, Carsten},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  issn      = {1611-4086},
  doi       = {10.25643/bauhaus-universitaet.2903},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-29032},
  pages     = {16},
  abstract  = {The application of partly decoupled approach by means of continuum mechanics facilitates the calculation of structural responses due to welding. The numerical results demonstrate the ability of a qualitative prediction of welded connections. As it is intended to integrate the local effects of a joint in structural analysis of steel constructions, it is necessary to meet higher approaches towards quality. The wide array of material parameters are presented, which are affecting the thermal, metallurgical and mechanical behavior, and which have to be identified. For that purpose further investigations are necessary to analyze the sensitivity of the models towards different material properties. The experimental determination of every material parameter is not possible due to the extraordinary laborious efforts needed. Besides that, experimentally identified parameters can be applied only for the tested steel quality for measured temperature-time regimes. For that reason alternative approaches for identification of material parameters, such as optimization strategies, have to be applied. After a definition of material parameters a quantitative prediction of welded connections will also be possible. Numerical results show the effect of phase transformation, activated by welding process, on residual stress state. As these phenomena occur in local areas in the range of crystal and grain sizes, the description of microscopic phenomena and their propagation on a macroscopic level due to approaches of homogenization might be expedient. Nevertheless, one should bear in mind, the increasing number of material parameters as well as the complexity of their experimental determination. Thus the microscopic approach should always be investigated under the scope of ability and efficiency of a required prediction. Under certain circumstances a step backwards, adopting a phenomenological approach, also can be beneficial.},
  subject      = {Angewandte Informatik},
  language  = {en}
}
@inproceedings{Wudtke,
  author    = {Wudtke, Idna},
  title     = {CONSTITUTIVE MODELING OF CRYSTALLINE MATERIALS WITH TEXTURE CHARACTERISTICS},
  series = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 04 - 06 2012, Bauhaus-University Weimar},
  booktitle = {Digital Proceedings, International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering : July 04 - 06 2012, Bauhaus-University Weimar},
  editor    = {G{\"u}rlebeck, Klaus and Lahmer, Tom and Werner, Frank},
  organization    = {Bauhaus-Universit{\"a}t Weimar},
  issn      = {1611-4086},
  doi       = {10.25643/bauhaus-universitaet.2791},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170314-27910},
  pages     = {9},
  abstract  = {The analysis of the response of complex structural systems requires the description of the material constitutive relations by means of an appropriate material model. The level of abstraction of such model may strongly affect the quality of the prognosis of the whole structure. In context to this fact, it is necessary to describe the material in a convenient sense as exact but as simple as possible. All material phenomena of crystalline materials e.g. steel, affecting the behavior of the structure, rely on physical effects which are interacting over spatial scales from subatomic to macroscopic range. Nevertheless, if the material is microscopically heterogenic, it might be appropriate to use phenomenological models for the purpose of civil engineering. Although constantly applied, these models are insufficient for steel materials with microscopic characteristics such as texture, typically occurring in hot rolled steel members or heat affected zones of welded joints. Hence, texture is manifested in crystalline materials as a regular crystallographic structure and crystallite orientation, influencing macroscopic material properties. The analysis of structural response of material with texture (e.g. rolled steel or heat affected zone of a welded joint) obliges the extension of the phenomenological material description of macroscopic scale by means of microscopic information. This paper introduces an enrichment approach for material models based on a hierarchical multiscale methodology. This has been done by describing the grain texture on a mesoscopic scale and coupling it with macroscopic constitutive relations by means of homogenization. Due to a variety of available homogenization methods, the question of an assessment of coupling quality arises. The applicability of the method and the effect of the coupling method on the reliability of the response are presented on an example.},
  subject      = {Angewandte Informatik},
  language  = {en}
}
@article{Wray2003,
  author    = {Wray, Tim},
  title     = {The queer gaze},
  doi       = {10.25643/bauhaus-universitaet.1267},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13356},
  year      = {2003},
  abstract  = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'},
  subject      = {Stadt},
  language  = {en}
}