@inproceedings{OPUS4-4304, title = {Second urbanHIST Conference. Interpreting 20th Century European Urbanism}, editor = {Abarkan, Abdellah and Bihlmaier, Helene and Gimeno S{\´a}nchez, Andrea and Blaga, Andreea}, address = {Karlskrona}, organization = {urbanHIST}, doi = {10.25643/bauhaus-universitaet.4304}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20201218-43046}, pages = {135}, abstract = {urbanHIST (2019). Second urbanHIST Conference. Interpreting 20th Century European Urbanism. Stockholm, 21-23 October 2019 Conference Booklet}, subject = {St{\"a}dtebau}, language = {en} } @misc{OPUS4-6370, title = {Gemeinwohlbilanz Fragenleitfaden. Kampagne 2019}, organization = {Ajuntament de Barcelona}, doi = {10.25643/bauhaus-universitaet.6370}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230523-63706}, pages = {45}, abstract = {In diesem Dokument gehen wir den gesamten Fragebogen f{\"u}r die vollst{\"a}ndige Gemeinwohlbilanz (kurz GB, katalanisch Balan{\c{c}} Comunitari bzw. BC) Frage f{\"u}r Frage durch und erkl{\"a}ren, was mit jeder einzelnen Frage gemeint ist und welche Informationen anzugeben sind. Es wird daher sehr empfohlen, vor dem Ausf{\"u}llen des Fragebogens in der App einen Blick auf den gesamten Fragenkatalog zu werfen, weil dies die Erhebung der Daten und die Verteilung der Aufgaben auf die verschiedenen mit der Erstellung der GB befassten Personen erleichtert. Die GB ist ein Selbstevaluierungstool, mit dem Organisationen ihre T{\"a}tigkeit unter Umwelt-, Sozial- und Governance-Aspekten bewerten k{\"o}nnen.}, subject = {Gemeinwohl}, language = {de} } @periodical{OPUS4-4862, title = {Schwerpunkt Ontography}, volume = {2019}, number = {10.2019, Heft 1}, editor = {Engell, Lorenz and Siegert, Bernhard}, publisher = {Felix Meiner Verlag}, address = {Hamburg}, organization = {Internationales Kolleg f{\"u}r Kulturtechnikforschung und Medienphilosophie}, issn = {2366-0767}, doi = {10.28937/ZMK-10-1}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20240507-48624}, pages = {200}, abstract = {Research in cultural techniques and media philosophy owe their existence to the fading and passing, the becoming impossible, and finally even the ban on ontology. Just like media history and media theory, they even represent a form of processing of this ending of ontology and a reaction to it. The concept of »Being«, the singular subject of all ontology, taken as unchangeable and as residing somewhere behind or even above all its realizations, concretions and manifestations in the materially existing world, had already been strongly suspected by positivism, vitalism and phenomenology, but had not yet been stripped off. Existential philosophy then ventured further, until finally a number of diverse schools of thought like Foucault's history of knowledge or Derrida's deconstruction, Quine's logic, Heinz von Foerster's constructivism, Luhmann's functionalism, or process philosophy in the aftermath of Whitehead could definitively reject ontology with highly effective—albeit strongly diverging—reasons and arguments. These theories and philosophical schools did not agree on anything but on the rejection of ontology. Accordingly, the »ontological difference«, which provided that one could not speak about »Being« in the same way as about an existing being, had to be reconsidered. One solution was to project the ontological difference back into the multitude and materiality of the existing and to provide it with a new language of description and to read it against the backdrop of new types of questions. The offer that media theory and history, the cultural techniques approach, and media philosophy were able to make—successfully—in this situation was essentially a reappraisal not only of technics (»Die Technik«) in the ontological sense, but of technologies and techniques, of practices and their aesthetics. To use Heideggers terms, the focus was now set on »switching« (»Schalten«) rather than on »ruling« (»Walten«). The ban on ontology was nonetheless fully respected, and in cultural and media studies the observation of techniques and technologies, means and processes of the incessant self-differentiation of anything that is ruled out the persistent stunning standstill vis-{\`a}-vis the great ontological difference of Being and the existing beings.}, subject = {Medienwissenschaft}, language = {mul} } @periodical{OPUS4-4863, title = {Schwerpunkt Blockchain}, volume = {2019}, number = {10.2019, Heft 2}, editor = {Engell, Lorenz and Siegert, Bernhard}, publisher = {Felix Meiner Verlag}, address = {Hamburg}, organization = {Internationales Kolleg f{\"u}r Kulturtechnikforschung und Medienphilosophie}, issn = {2366-0767}, doi = {10.28937/ZMK-10-2}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20240507-48639}, pages = {183}, abstract = {Neue Medien rufen regelm{\"a}ßig neue Utopien auf den Plan, die sich untereinander stark {\"a}hneln k{\"o}nnen. Regelm{\"a}ßig bekommen wir er{\"o}ffnet, dass, von den Uninformierten noch unbemerkt, eine Medienrevolution im Gange sei, die das Potenzial habe, die Welt grundlegend zu ver{\"a}ndern. Diese Erwartungen gelten meistens einem in jeder Hinsicht umw{\"a}lzenden Zuwachs an Gleichheit und Freiheit Aller. Meistens enden sie jedoch dann in der Feststellung eines Zuwachses an Geld und Macht in den H{\"a}nden Weniger. So war es beim Radio, beim Video, beim Internet, bei den »sozialen Medien«. Und so ist es auch heute wieder. Eine Medienrevolution finde statt, so h{\"o}rt und liest man, die sich nicht auf kalifornischen Theaterb{\"u}hnen oder auf Konsumentenelektronik-Messen wie der IFA in Gestalt neuer Gadgets {\"o}ffentlich pr{\"a}sentiert. Sie spielt sich jenseits der Terminals im unsichtbaren Reich der Vernetzung ab und betrifft subkutan die mediale Instituiertheit der Gesellschaft selbst: die Blockchain.}, subject = {Medienwissenschaft}, language = {mul} } @inproceedings{AbrahamczykSchwarz, author = {Abrahamczyk, Lars and Schwarz, Jochen}, title = {Forecast Engineering: From Past Design to Future Decision 2017}, doi = {10.25643/bauhaus-universitaet.4034}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191122-40344}, pages = {221}, abstract = {The design of engineering structures takes place today and in the past on the basis of static calculations. The consideration of uncertainties in the model quality becomes more and more important with the development of new construction methods and design requirements. In addition to the traditional forced-based approaches, experiences and observations about the deformation behavior of components and the overall structure under different exposure conditions allow the introduction of novel detection and evaluation criteria. The proceedings at hand are the result from the Bauhaus Summer School Course: Forecast Engineering held at the Bauhaus-Universit{\"a}t Weimar, 2017. It summarizes the results of the conducted project work, provides the abstracts of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities. The special character of this course is in the combination of basic disciplines of structural engineering with applied research projects in the areas of steel and reinforced concrete structures, earthquake and wind engineering as well as informatics and linking them to mathematical methods and modern tools of visualization. Its innovative character results from the ambitious engineering tasks and advanced modeling demands.}, subject = {Proceedings}, language = {en} } @inproceedings{AbrahamczykSchwarz, author = {Abrahamczyk, Lars and Schwarz, Jochen}, title = {Forecast Engineering: From Past Design to Future Decision 2018}, doi = {10.25643/bauhaus-universitaet.4036}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191126-40364}, pages = {112}, abstract = {Institute of Structural Engineering, Institute of Structural Mechanics, as well as Institute for Computing, Mathematics and Physics in Civil Engineering at the faculty of civil engineering at the Bauhaus-Universit{\"a}t Weimar presented special topics of structural engineering to highlight the broad spectrum of civil engineering in the field of modeling and simulation. The summer course sought to impart knowledge and to combine research with a practical context, through a challenging and demanding series of lectures, seminars and project work. Participating students were enabled to deal with advanced methods and its practical application. The extraordinary format of the interdisciplinary summer school offers the opportunity to study advanced developments of numerical methods and sophisticated modelling techniques in different disciplines of civil engineering for foreign and domestic students, which go far beyond traditional graduate courses. The proceedings at hand are the result from the Bauhaus Summer School course: Forecast Engineering held at the Bauhaus-Universit{\"a}t Weimar, 2018. It summarizes the results of the conducted project work, provides the abstracts/papers of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities.}, subject = {Proceedings}, language = {en} } @phdthesis{AlYasiri2017, author = {Al-Yasiri, Zainab Riyadh Shaker}, title = {Function Theoretic Methods for the Analytical and Numerical Solution of Some Non-linear Boundary Value Problems with Singularities}, doi = {10.25643/bauhaus-universitaet.3898}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190506-38987}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {164}, year = {2017}, abstract = {The p-Laplace equation is a nonlinear generalization of the well-known Laplace equation. It is often used as a model problem for special types of nonlinearities, and therefore it can be seen as a bridge between very general nonlinear equations and the linear Laplace equation, too. It appears in many problems for instance in the theory of non-Newtonian fluids and fluid dynamics or in rockfill dam problems, as well as in special problems of image restoration and image processing. The aim of this thesis is to solve the p-Laplace equation for 1 < p < 2, as well as for 2 < p < 3 and to find strong solutions in the framework of Clifford analysis. The idea is to apply a hypercomplex integral operator and special function theoretic methods to transform the p-Laplace equation into a p-Dirac equation. We consider boundary value problems for the p-Laplace equation and transfer them to boundary value problems for a p-Dirac equation. These equations will be solved iteratively by applying Banach's fixed-point principle. Applying operator-theoretical methods for the p-Dirac equation, the existence and uniqueness of solutions in certain Sobolev spaces will be proved. In addition, using a finite difference approach on a uniform lattice in the plane, the fundamental solution of the Cauchy-Riemann operator and its adjoint based on the fundamental solution of the Laplacian will be calculated. Besides, we define gener- alized discrete Teodorescu transform operators, which are right-inverse to the discrete Cauchy-Riemann operator and its adjoint in the plane. Furthermore, a new formula for generalized discrete boundary operators (analogues of the Cauchy integral operator) will be considered. Based on these operators a new version of discrete Borel-Pompeiu formula is formulated and proved. This is the basis for an operator calculus that will be applied to the numerical solution of the p-Dirac equation. Finally, numerical results will be presented showing advantages and problems of this approach.}, subject = {Finite-Differenzen-Methode}, language = {en} } @phdthesis{Alalade, author = {Alalade, Muyiwa}, title = {An Enhanced Full Waveform Inversion Method for the Structural Analysis of Dams}, doi = {10.25643/bauhaus-universitaet.3956}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190813-39566}, school = {Bauhaus-Universit{\"a}t Weimar}, abstract = {Since the Industrial Revolution in the 1700s, the high emission of gaseous wastes into the atmosphere from the usage of fossil fuels has caused a general increase in temperatures globally. To combat the environmental imbalance, there is an increase in the demand for renewable energy sources. Dams play a major role in the generation of "green" energy. However, these structures require frequent and strict monitoring to ensure safe and efficient operation. To tackle the challenges faced in the application of convention dam monitoring techniques, this work proposes the inverse analysis of numerical models to identify damaged regions in the dam. Using a dynamic coupled hydro-mechanical Extended Finite Element Method (XFEM) model and a global optimization strategy, damage (crack) in the dam is identified. By employing seismic waves to probe the dam structure, a more detailed information on the distribution of heterogeneous materials and damaged regions are obtained by the application of the Full Waveform Inversion (FWI) method. The FWI is based on a local optimization strategy and thus it is highly dependent on the starting model. A variety of data acquisition setups are investigated, and an optimal setup is proposed. The effect of different starting models and noise in the measured data on the damage identification is considered. Combining the non-dependence of a starting model of the global optimization strategy based dynamic coupled hydro-mechanical XFEM method and the detailed output of the local optimization strategy based FWI method, an enhanced Full Waveform Inversion is proposed for the structural analysis of dams.}, subject = {Talsperre}, language = {en} } @phdthesis{Beck, author = {Beck, Stephan}, title = {Immersive Telepresence Systems and Technologies}, doi = {10.25643/bauhaus-universitaet.3856}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190218-38569}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {149}, abstract = {Modern immersive telepresence systems enable people at different locations to meet in virtual environments using realistic three-dimensional representations of their bodies. For the realization of such a three-dimensional version of a video conferencing system, each user is continuously recorded in 3D. These 3D recordings are exchanged over the network between remote sites. At each site, the remote recordings of the users, referred to as 3D video avatars, are seamlessly integrated into a shared virtual scenery and displayed in stereoscopic 3D for each user from his or her perspective. This thesis reports on algorithmic and technical contributions to modern immersive telepresence systems and presents the design, implementation and evaluation of the first immersive group-to-group telepresence system in which each user is represented as realistic life-size 3D video avatar. The system enabled two remote user groups to meet and collaborate in a consistent shared virtual environment. The system relied on novel methods for the precise calibration and registration of color- and depth- sensors (RGBD) into the coordinate system of the application as well as an advanced distributed processing pipeline that reconstructs realistic 3D video avatars in real-time. During the course of this thesis, the calibration of 3D capturing systems was greatly improved. While the first development focused on precisely calibrating individual RGBD-sensors, the second stage presents a new method for calibrating and registering multiple color and depth sensors at a very high precision throughout a large 3D capturing volume. This method was further refined by a novel automatic optimization process that significantly speeds up the manual operation and yields similarly high accuracy. A core benefit of the new calibration method is its high runtime efficiency by directly mapping from raw depth sensor measurements into an application coordinate system and to the coordinates of its associated color sensor. As a result, the calibration method is an efficient solution in terms of precision and applicability in virtual reality and immersive telepresence applications. In addition to the core contributions, the results of two case studies which address 3D reconstruction and data streaming lead to the final conclusion of this thesis and to directions of future work in the rapidly advancing field of immersive telepresence research.}, subject = {Virtuelle Realit{\"a}t}, language = {en} } @misc{Bendalla, type = {Master Thesis}, author = {Bendalla, Abdulmagid Sedig Khalafallah}, title = {Nonlinear Numerical Modelling of Cable Elements in Bridges for Dynamic Analysis}, doi = {10.25643/bauhaus-universitaet.3994}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191007-39940}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {107}, abstract = {Identifying cable force with vibration-based methods has become widely used in engineering practice due to simplicity of application. The string taut theory provides a simple definition of the relationship between natural frequencies and the tension force of a cable. However, this theory assumes a perfectly flexible non-sagging cable pinned at its ends. These assumptions do not reflect all cases, especially when the cable is short, under low tension forces or the supports are partially flexible. Extradosed bridges, which are distinguished from cable-stayed bridges by their low pylon height, have shorter cables. Therefore the application of the conventional string taut theory to identify cable forces on extradosed bridge cables might be inadequate to identify cable forces. In this work, numerical modelling of an extradosed bridge cable saddled on a circular deviator at pylon is conducted. The model is validated with the catenary analytical solution and its static and dynamic behaviours are studied. The effect of a saddle support is found to positively affect the cable stiffness by geometric means; longer saddle radius increases the cable stiffness by suppressing the deformations near the saddle. Further, accounting the effects of bending stiffness in the numerical model by using beam elements show considerable deviation from models with truss elements (i.e. zero bending stiffness). This deviation is manifested when comparing the static and dynamic properties. This motivates a more thorough study of bending stiffness effects on short cables. Bending stiffness effects are studied using two rods connected with several springs along their length. Under bending moments, the springs resist the rods' relative axial displacement by the springs' transverse component. This concept is used to identify bending stiffness values by utilizing the parallel axis theorem to quantify ratios of the second moment of area. These ratios are calculated based on the setup of the springs (e.g. number of springs per unit length, transverse stiffness, etc...). The numerical model based on this concept agrees well with the theoretical values computed using upper and lower bounds of the parallel axis theorem. The proposed concept of quantifying ratios of the second moment of area using springs as connection between cable rods is applied on an actual extradosed bridge geometry. The model is examined by comparison to the previously validated global numerical model. The two models showed good correlation under various changing parameters. This allowed further study of the effects of stick/slip behaviour between cable rods on an actual bridge geometry.}, subject = {Kabel}, language = {en} } @article{BielikSchneiderKuligaetal., author = {Bielik, Martin and Schneider, Sven and Kuliga, Saskia and Griego, Danielle and Ojha, Varun and K{\"o}nig, Reinhard and Schmitt, Gerhard and Donath, Dirk}, title = {Examining Trade-Offs between Social, Psychological, and Energy Potential of Urban Form}, series = {ISPRS International Journal of Geo-Information}, volume = {2019}, journal = {ISPRS International Journal of Geo-Information}, editor = {Resch, Bernd and Szell, Michael}, doi = {10.3390/ijgi8020052}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190408-38695}, abstract = {Urban planners are often challenged with the task of developing design solutions which must meet multiple, and often contradictory, criteria. In this paper, we investigated the trade-offs between social, psychological, and energy potential of the fundamental elements of urban form: the street network and the building massing. Since formal mehods to evaluate urban form from the psychological and social point of view are not readily available, we developed a methodological framework to quantify these criteria as the first contribution in this paper. To evaluate the psychological potential, we conducted a three-tiered empirical study starting from real world environments and then abstracting them to virtual environments. In each context, the implicit (physiological) response and explicit (subjective) response of pedestrians were measured. To quantify the social potential, we developed a street network centrality-based measure of social accessibility. For the energy potential, we created an energy model to analyze the impact of pure geometric form on the energy demand of the building stock. The second contribution of this work is a method to identify distinct clusters of urban form and, for each, explore the trade-offs between the select design criteria. We applied this method to two case studies identifying nine types of urban form and their respective potential trade-offs, which are directly applicable for the assessment of strategic decisions regarding urban form during the early planning stages.}, subject = {Planung}, language = {en} } @book{BlasiusBeenenBrandtetal., author = {Blasius, Clara Maria and Beenen, Paul and Brandt, Marvin and Bulic, Selma and Chen, Mu and Claus, Leon and Ellguth, Fabian and Elshani, Diellza and Hainich, Jakob and Kolbe, Simon and Oehler, Louis and Pullmann, Isabella and Ratz, Rosalie and Regueiro Candina, Andoni and Reusch, Marco and Thurow, Katharina and Weski, Lennart and Wittke, Katharina}, title = {TIRANA. Architecture as Political Actor}, editor = {Adam, Tobias and Kuch, Ulrike}, doi = {10.25643/bauhaus-universitaet.3995}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191014-39951}, publisher = {Bauhaus-Universit{\"a}t Weimar}, abstract = {This book on the architecture of Tirana contains findings of the interdisciplinary seminar "TIRANA. Architecture as Political Actor" at Bauhaus-Universit{\"a}t Weimar. In photographs, texts and diagrams it shows the approach to an unknown city that was explored following the ideas of the Actor Network Theory (ANT). Thus, the book gives an insight into scientific as well as artistic works, both mirroring the attempt to grasp the role of architecture within political processes in the 20th century and today. In this compilation of the architectural-political networks, an image of the city of Tirana emerges that gives an idea of specific built structures as well as of the architecture as political actor on a meta-level. In doing so, the book itself becomes an actor in the discussion of the relationship of architecture and politics in Albania and an example for the use of ANT as scientific-artistic tool for the research on architectural "things" in the context of a city.}, subject = {Architektur}, language = {en} } @unpublished{BodeMarxVogeletal., author = {Bode, Matthias and Marx, Steffen and Vogel, Albert and V{\"o}lker, Conrad}, title = {Dissipationsenergie bei Erm{\"u}dungsversuchen an Betonprobek{\"o}rpern}, volume = {2019}, doi = {10.25643/bauhaus-universitaet.4493}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20211012-44938}, pages = {9}, abstract = {Aufgrund des visko-elastoplastischen Materialverhaltens von Beton wird Probek{\"o}rpern und Bauteilen infolge zyklischer Beanspruchungen Energie zugef{\"u}hrt. Die entsprechenden Energiegr{\"o}ßen werden durch Hysteresefl{\"a}chen der Spannungs-Dehnungslinien beschrieben. In der Literatur finden sich dabei unterschiedliche Ans{\"a}tze, wof{\"u}r diese Energie verwendet wird. Erste Untersuchungen zeigen, dass zumindest ein Teil dieser dissipierten Energie in thermische Energie umgewandelt wird. Mithilfe der in diesem Beitrag beschriebenen Methodik lassen sich diese Energiegr{\"o}ßen f{\"u}r jeden Lastwechsel eines Erm{\"u}dungsversuches schnell und zuverl{\"a}ssig bestimmen. Anschließend wurden mit dem implementierten Algorithmus die dissipierten Energien von insgesamt 27 zyklischen Versuchen ausgewertet. Analog zu der Dehnungsentwicklung und der Steifigkeitsdegradation weisen auch die Verl{\"a}ufe der dissipierten Energie {\"u}ber die Lastwechselzahl einen dreiphasigen Verlauf auf. Die Auswertung zeigt außerdem eine Korrelation zwischen der Bruchlastwechselzahl und der dissipierten Energie. Auch der Zusammenhang zwischen Probek{\"o}rpererw{\"a}rmung und dissipierter Energie konnte best{\"a}tigt werden.}, subject = {Erm{\"u}dung}, language = {de} } @masterthesis{Burkhart, type = {Bachelor Thesis}, author = {Burkhart, Natalie}, title = {Die Rezeption des Neuen Bauens und der Amsterdamer Schule am Beispiel j{\"u}ngerer Wohnungsbauten in den Niederlanden}, doi = {10.25643/bauhaus-universitaet.3950}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190731-39508}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {113}, abstract = {Die niederl{\"a}ndische Architekturmoderne wird seit den 1980er Jahren nahezu durchgehend baulich rezipiert. Bisher unternommene uneinheitliche Kategorisierungen dieser Bauten als "Neo-Moderne" oder "Neu-Amsterdamer- Schule" werden dem komplexen Sachverhalt oftmals nicht in ausreichendem Maße gerecht. Die Arbeit soll daher einen Beitrag zum besseren Verst{\"a}ndnis der Rezeption des Neuen Bauens und der Amsterdamer Schule leisten. Anhand vier ausgew{\"a}hlter j{\"u}ngerer Wohnungsbauten in den Niederlanden untersucht sie konkret das Verh{\"a}ltnis zu den st{\"a}dtebaulichen, typologischen und formal- gestalterischen Vorbildern aus den 1920er und 1930er Jahren. Welche Gr{\"u}nde waren ausschlaggebend f{\"u}r die Wahl bestimmter Vorbilder? Auf welche Wohnanlagen greifen sie konkret zur{\"u}ck und mithilfe welcher Verfahren tun sie dies? Inwiefern unterscheidet sich die Vorgehensweise der ArchitektInnen von denen des Neuen Bauens oder der Amsterdamer Schule? Das Res{\"u}mee offenbart eine große Vielfalt an Rezeptionstechniken von zumeist mehreren historischen Vorbildern und damit die Schwierigkeit, das vorliegende Ph{\"a}nomen zu deuten. Vor allem aber scheint die Moderne mit ihrem Paradigma der Originalit{\"a}t von einem erneuten eklektischen Ansatz in der Architektur {\"u}berholt worden zu sein. In ihrem methodischen Ansatz verbindet die Thesis formal-gestalterische Analysen mit theoretischen Reflexionen und behandelt mit dem Thema der Referenzen eine zentrale Praxis im Entwurfsprozess von ArchitektInnen.}, subject = {Rezeption}, language = {de} } @techreport{BuschowWellbrock, author = {Buschow, Christopher and Wellbrock, Christian-Mathias}, title = {Money for nothing and content for free? Zahlungsbereitschaft f{\"u}r digitaljournalistische Inhalte}, organization = {Landesanstalt f{\"u}r Medien NRW}, doi = {10.25643/bauhaus-universitaet.4016}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191111-40168}, pages = {42}, abstract = {Frei nach dem Motto "Money for nothing and content for free" werden tagesaktuelle Informationen ebenso wie aufw{\"a}ndig recherchierte Reportagen im Digitalen vornehmlich kostenfrei genutzt. Wie k{\"o}nnen journalistische Angebote sich also nachhaltig refinanzieren? Die vorliegende Studie stellt Nutzerinnen und Nutzer in den Mittelpunkt. Sie fragt nach den Gr{\"u}nden f{\"u}r fehlende Zahlungsbereitschaft sowie danach, warum und wof{\"u}r gezahlt wird. Außerdem gibt sie Medienschaffenden konkrete Handlungsempfehlungen, um ihre journalistischen Produkte ansprechend zu gestalten und so die Zahlungsbereitschaft von Leserinnen und Lesern zu steigern.}, subject = {Neue Medien}, language = {de} } @techreport{BuschowWellbrock, author = {Buschow, Christopher and Wellbrock, Christian-Mathias}, title = {Money for nothing and content for free? Willingness to pay for digital journalism}, organization = {Landesanstalt f{\"u}r Medien NRW}, doi = {10.25643/bauhaus-universitaet.4017}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191111-40175}, pages = {21}, abstract = {True to the motto "Money for nothing and content for free", both up-to-date information and thoroughly researched reporting are principally used free of charge in their digital forms. Considering this, how can journalism be funded sustainably? This study focuses on users and investigates the reasons for their lack of willingness to pay for content, as well as what they do pay for, and why.}, subject = {Neue Medien}, language = {en} } @phdthesis{Chen, author = {Chen, Na}, title = {A Balance between Ideals and Reality — Establishing and Evaluating a Resilient City Indicator System for Central Chinese Cities}, doi = {10.25643/bauhaus-universitaet.4030}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191121-40309}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {212}, abstract = {Recent years have seen a gradual shift in focus of international policies from a national and regional perspective to that of cities, a shift which is closely related to the rapid urbanization of developing countries. As revealed in the 2011 Revision of the World Urbanization Prospects published by the United Nations, 51\% of the global population (approximately 3.6 billion people) lives in cities. The report predicts that by 2050, the world's urban population will increase by 2.3 billion, making up 68\% of the population. The growth of urbanization in the next few decades is expected to primarily come from developing countries, one third of which will be in China and India. With rapid urbanization and the ongoing growth of mega cities, cities must become increasingly resilient and intelligent to cope with numerous challenges and crises like droughts and floods arising from extreme climate, destruction brought by severe natural disasters, and aggregated social contradictions resulting from economic crises. All cities face the urban development dynamics and uncertainties arising from these problems. Under such circumstances, cities are considered the critical path from crisis to prosperity, so scholars and organizations have proposed the construction of "resilient cities." On the one hand, this theory emphasizes cities' defenses and buffering capacity against disasters, crises and uncertainties, as well as recovery after destruction; on the other hand, it highlights the learning capacity of urban systems, identification of opportunities amid challenges, and maintenance of development vitality. Some scholars even believe that urban resilience is a powerful supplement to sustainable development. Hence, resilience assessment has become the latest and most important perspective for evaluating the development and crisis defense capacity of cities. Rather than a general abstract concept, urban resilience is a comprehensive measurement of a city's level of development. The dynamic development of problems is reflected through quantitative indicators and appraisal systems not only from the perspective of academic research, but also governmental policy, so as to scientifically guide development, and measure and compare cities' development levels. Although international scholars have proposed quantitative methods for urban resilience assessment, they are however insufficiently systematic and regionally adaptive for China's current urban development needs. On the basis of comparative study on European and North American resilient city theories, therefore, this paper puts forwards a theoretical framework for resilient city systems consistent with China's national conditions in light of economic development pressure, natural resource depletion, pollution, and other salient development crises in China. The key factors influencing urban resilience are taken into full consideration; expert appraisal is conducted based on the Delphi Method and the analytic hierarchy process (AHP) to design an extensible and updatable resilient city evaluation system which is sufficiently systematic, geographically adaptable, and sustainable for China's current urban development needs. Finally, Changsha is taken as the main case for empirical study on comprehensive evaluation of similar cities in Central China to improve the indicator system.}, subject = {Stadtplanung}, language = {en} } @phdthesis{Doering, author = {Doering, Chris}, title = {Die Informationsarchitektur der kommunalen Energiewende}, doi = {10.25643/bauhaus-universitaet.4051}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191219-40514}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {278}, abstract = {Die kommunale Energiewende stellt die beteiligten Akteure vor große Herausforderungen: Auf Grundlage strukturierter Daten sollen Maßnahmen
 f{\"u}r eine nachhaltige Infrastruktur geplant und umgesetzt werden. Oft fehlt
 den Beteiligten jedoch das n{\"o}tige Wissen {\"u}ber die lokalen Potentiale und Rahmenbedingungen—und an geeigneten Methoden der Informationsvermittlung. Gegenstand dieser Arbeit ist die Analyse der Planungsstrukturen und der Entwurf eines visuellen Informationssystems. Mit der vorliegenden Untersuchung wird gezeigt, wie mit Hilfe von Befragungen, partizipativen Visualisierungen, fiktionalen Szenarien und der systematischen Anwendung visueller Variablen eine fundierte Grundlage geschaffen werden kann f{\"u}r eine nutzerorientierte Gestaltung.}, subject = {Design}, language = {de} } @inproceedings{DokhanchiArnoldVogeletal., author = {Dokhanchi, Najmeh Sadat and Arnold, J{\"o}rg and Vogel, Albert and V{\"o}lker, Conrad}, title = {Acoustic Travel-Time Tomography: Optimal Positioning of Transceiver and Maximal Sound-Ray Coverage of the Room}, series = {Fortschritte der Akustik - DAGA 2019}, booktitle = {Fortschritte der Akustik - DAGA 2019}, doi = {10.25643/bauhaus-universitaet.3877}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190408-38778}, pages = {4}, abstract = {Acoustic travel-time tomography (ATOM) determines the distribution of the temperature in a propagation medium by measuring the travel-time of acoustic signals between transmitters and receivers. To employ ATOM for indoor climate measurements, the impulse responses have been measured in the climate chamber lab of the Bauhaus-University Weimar and compared with the theoretical results of its image source model (ISM). A challenging task is distinguishing the reflections of interest in the reflectogram when the sound rays have similar travel-times. This paper presents a numerical method to address this problem by finding optimal positions of transmitter and receiver, since they have a direct impact on the distribution of travel times. These optimal positions have the minimum number of simultaneous arrival time within a threshold level. Moreover, for the tomographic reconstruction, when some of the voxels remain empty of sound-rays, it leads to inaccurate determination of the air temperature within those voxels. Based on the presented numerical method, the number of empty tomographic voxels are minimized to ensure the best sound-ray coverage of the room. Subsequently, a spatial temperature distribution is estimated by simultaneous iterative reconstruction technique (SIRT). The experimental set-up in the climate chamber verifies the simulation results.}, subject = {Bauphysik}, language = {en} } @misc{Duering, type = {Master Thesis}, author = {D{\"u}ring, Serjoscha}, title = {Between plan and reality: tracing the development dynamics of the Lanzhou New Area - a computational approach}, doi = {10.25643/bauhaus-universitaet.4000}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191108-40002}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {78}, abstract = {Contemporary planning practice is often criticized as too design-driven with a lack of both quantitative evaluation criteria and employment of models that anticipate the self-organizational forces shaping cities, resulting in significant gaps between plan and reality. This study aims to introduce a modular toolbox prototype for spatial-analysis in data-poor environments. It is proposed to integrate designing, evaluation, and monitoring of urban development into one framework, thus supporting data-driven, on-demand urban design, and planning processes. The proposed framework's value will exemplarily be tested, focussing on the analysis and simulation of spatiotemporal growth trajectories taking the Lanzhou New Area as a case-study - a large scale new town project that struggles to attract residents and businesses. Conducted analysis suggests that more attention should be given to spatiotemporal development paths to ensure that cities work more efficiently throughout any stage of development. Finally, early hints on general design strategies to achieve this goal are discussed with the assistance of the proposed toolbox.}, subject = {Stadtplanung}, language = {en} }