@phdthesis{Kiesel2022,
  author    = {Kiesel, Johannes},
  title     = {Harnessing Web Archives to Tackle Selected Societal Challenges},
  doi       = {10.25643/bauhaus-universitaet.4660},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220622-46602},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2022},
  abstract  = {With the growing importance of the World Wide Web, the major challenges our society faces are also increasingly affecting the digital areas of our lives. Some of the associated problems can be addressed by computer science, and some of these specifically by data-driven research. To do so, however, requires to solve open issues related to archive quality and the large volume and variety of the data contained. This dissertation contributes data, algorithms, and concepts towards leveraging the big data and temporal provenance capabilities of web archives to tackle societal challenges. We selected three such challenges that highlight the central issues of archive quality, data volume, and data variety, respectively: (1) For the preservation of digital culture, this thesis investigates and improves the automatic quality assurance of the web page archiving process, as well as the further processing of the resulting archive data for automatic analysis. (2) For the critical assessment of information, this thesis examines large datasets of Wikipedia and news articles and presents new methods for automatically determining quality and bias. (3) For digital security and privacy, this thesis exploits the variety of content on the web to quantify the security of mnemonic passwords and analyzes the privacy-aware re-finding of the various seen content through private web archives.},
  subject      = {Informatik},
  language  = {en}
}
@phdthesis{ManzanoGomez,
  author    = {Manzano G{\´o}mez, Noel A.},
  title     = {The reverse of urban planning. Towards a 20th century history of informal urbanization in Europe and its origins in Madrid and Paris (1850-1940)},
  doi       = {10.25643/bauhaus-universitaet.4569},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220119-45693},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {350},
  abstract  = {The objective of this thesis was to understand the 20th-century history of informal urbanisation in Europe and its origins in Madrid and Paris. The concept of informal urbanisation was employed to refer to the process of developing shacks and precarious single-family housing areas that were not planned by the public powers and were considered to be substandard because of their below-average materials and social characteristics. Our main hypothesis was that despite being a phenomenon with ancient roots, informal urbanisation emerged as a public problem and was subsequently prohibited in connection with another historical process occurred: the birth of contemporary urban planning. Therefore, its transformation into a deviant and illegal urban growth mechanism would have been a pan-European process occurring at the same pace that urban planning developed during the first decades of the 20th century. Analysing the 20th-century history of informal urbanisation in Europe was an ambitious task that required using a large number of sources. To contend with this issue, this thesis combined two main methods: historiographical research about informal urbanisation in Europe and archival research of two case studies, Madrid and Paris, to make the account more precise by analysing primary sources of the subject. Our research of these informal areas, which were produced mainly through poor private allotments and housing developed on land squats, revealed two key moments of explosive growth across Europe: the 1920s and 1960s. The near disappearance of informal urbanisation throughout the continent seemed to be a consequence not of the historical development of urban planning—which was commonly transgressed and bypassed—but of the exacerbation of global economic inequalities, permitting the development of a geography of privilege in Europe. Concerning the cases of Paris and Madrid, the origins of informal urbanisation—that is, the moment the issue started to be problematised—seemed to occur in the second half of the 19th century, when a number of hygienic norms and surveillance devices began to control housing characteristics. From that moment onwards, informal urbanisation areas formed peripheral belts in both cities. This growth became the object of an illegalisation process of which we have identified three phases: (i) the unregulated development of the phenomenon during the second half of the 20th century, (ii) the institutional production of "exception regulations" to permit a controlled development of substandard housing in the peripheral fringes of both cities, and (iii) the synchronic prohibition of informal urbanisation in the 1920s and its illegal reproduction.},
  subject      = {Stadtplanung},
  language  = {en}
}
@article{MehlingSchnabelLondong,
  author    = {Mehling, Simon and Schnabel, Tobias and Londong, J{\"o}rg},
  title     = {Investigation on Energetic Efficiency of Reactor Systems for Oxidation of Micro-Pollutants by Immobilized Active Titanium Dioxide Photocatalysis},
  series = {Water},
  volume    = {2022},
  journal   = {Water},
  number    = {Volume 14, issue 7, article 2681},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/w14172681},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220912-47130},
  pages     = {1 -- 15},
  abstract  = {In this work, the degradation performance for the photocatalytic oxidation of eight micropollutants (amisulpride, benzotriazole, candesartan, carbamazepine, diclofenac, gabapentin, methlybenzotriazole, and metoprolol) within real secondary effluent was investigated using three different reactor designs. For all reactor types, the influence of irradiation power on its reaction rate and energetic efficiency was investigated. Flat cell and batch reactor showed almost similar substance specific degradation behavior. Within the immersion rotary body reactor, benzotriazole and methylbenzotriazole showed a significantly lower degradation affinity. The flat cell reactor achieved the highest mean degradation rate, with half time values ranging from 5 to 64 min with a mean of 18 min, due to its high catalysts surface to hydraulic volume ratio. The EE/O values were calculated for all micro-pollutants as well as the mean degradation rate constant of each experimental step. The lowest substance specific energy per order (EE/O) values of 5 kWh/m3 were measured for benzotriazole within the batch reactor. The batch reactor also reached the lowest mean values (11.8-15.9 kWh/m3) followed by the flat cell reactor (21.0-37.0 kWh/m3) and immersion rotary body reactor (23.9-41.0 kWh/m3). Catalyst arrangement and irradiation power were identified as major influences on the energetic performance of the reactors. Low radiation intensities as well as the use of submerged catalyst arrangement allowed a reduction in energy demand by a factor of 3-4. A treatment according to existing treatment goals of wastewater treatment plants (80\% total degradation) was achieved using the batch reactor with a calculated energy demand of 7000 Wh/m3.},
  subject      = {Fotokatalyse},
  language  = {en}
}
@article{AlYasiriMutasharGuerlebecketal.,
  author    = {Al-Yasiri, Zainab Riyadh Shaker and Mutashar, Hayder Majid and G{\"u}rlebeck, Klaus and Lahmer, Tom},
  title     = {Damage Sensitive Signals for the Assessment of the Conditions of Wind Turbine Rotor Blades Using Electromagnetic Waves},
  series = {Infrastructures},
  volume    = {2022},
  journal   = {Infrastructures},
  number    = {Volume 7, Issue 8 (August 2022), article 104},
  editor    = {Shafiullah, GM},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/infrastructures7080104},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220831-47093},
  pages     = {18},
  abstract  = {One of the most important renewable energy technologies used nowadays are wind power turbines. In this paper, we are interested in identifying the operating status of wind turbines, especially rotor blades, by means of multiphysical models. It is a state-of-the-art technology to test mechanical structures with ultrasonic-based methods. However, due to the density and the required high resolution, the testing is performed with high-frequency waves, which cannot penetrate the structure in depth. Therefore, there is a need to adopt techniques in the fields of multiphysical model-based inversion schemes or data-driven structural health monitoring. Before investing effort in the development of such approaches, further insights and approaches are necessary to make the techniques applicable to structures such as wind power plants (blades). Among the expected developments, further accelerations of the so-called "forward codes" for a more efficient implementation of the wave equation could be envisaged. Here, we employ electromagnetic waves for the early detection of cracks. Because in many practical situations, it is not possible to apply techniques from tomography (characterized by multiple sources and sensor pairs), we focus here on the question of whether the existence of cracks can be determined by using only one source for the sent waves.},
  subject      = {Windkraftwerk},
  language  = {en}
}
@article{Lutolli,
  author    = {Lutolli, Blerim},
  title     = {A Review of Domed Cities and Architecture: Past, Present and Future},
  series = {Future cities and environment},
  volume    = {2022},
  journal   = {Future cities and environment},
  number    = {Volume 8, issue 1},
  publisher = {Ubiquity Press Limited},
  address   = {London},
  doi       = {10.5334/fce.154},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221103-47335},
  pages     = {1 -- 9},
  abstract  = {The goal of architecture is changing in response to the expanding role of cities, rapid urbanization, and transformation under changing economic, environmental, social, and demographic factors. As cities increased in the early modern era, overcrowding, urbanization, and pollution conditions led reformers to consider the future shape of the cities. One of the most critical topics in contemporary architecture is the subject of the future concepts of living. In most cases, domed cities, as a future concept of living, are rarely considered, and they are used chiefly as "utopian" visions in the discourse of future ways of living. This paper highlights the reviews of domed cities to deepen the understanding of the idea in practice, like its approach in terms of architecture. The main aim of this paper is to provide a broad overview for domed cities in the face of pollution as one of the main concerns in many European cities. As a result, the significance of the reviews of the existing projects is focused on their conceptual quality. This review will pave the way for further studies in terms of future developments in the realm of domed cities. In this paper, the city of Celje, one of the most polluted cities in Slovenia, is taken as a case study for considering the concept of Dome incorporated due to the lack of accessible literature on the topic. This review's primary contribution is to allow architects to explore a broad spectrum of innovation by comparing today's achievable statuses against the possibilities generated by domed cities. As a result of this study, the concept of living under the Dome remains to be developed in theory and practice. The current challenging climatic situation will accelerate the evolution of these concepts, resulting in the formation of new typologies, which are a requirement for humanity.},
  subject      = {Architektur},
  language  = {en}
}
@article{ChowdhuryZabel,
  author    = {Chowdhury, Sharmistha and Zabel, Volkmar},
  title     = {Influence of loading sequence on wind induced fatigue assessment of bolts in TV-tower connection block},
  series = {Results in Engineering},
  volume    = {2022},
  journal   = {Results in Engineering},
  number    = {Volume 16, article 100603},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.rineng.2022.100603},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221028-47303},
  pages     = {1 -- 18},
  abstract  = {Bolted connections are widely employed in structures like transmission poles, wind turbines, and television (TV) towers. The behaviour of bolted connections is often complex and plays a significant role in the overall dynamic characteristics of the structure. The goal of this work is to conduct a fatigue lifecycle assessment of such a bolted connection block of a 193 m tall TV tower, for which 205 days of real measurement data have been obtained from the installed monitoring devices. Based on the recorded data, the best-fit stochastic wind distribution for 50 years, the decisive wind action, and the locations to carry out the fatigue analysis have been decided. A 3D beam model of the entire tower is developed to extract the nodal forces corresponding to the connection block location under various mean wind speeds, which is later coupled with a detailed complex finite element model of the connection block, with over three million degrees of freedom, for acquiring stress histories on some pre-selected bolts. The random stress histories are analysed using the rainflow counting algorithm (RCA) and the damage is estimated using Palmgren-Miner's damage accumulation law. A modification is proposed to integrate the loading sequence effect into the RCA, which otherwise is ignored, and the differences between the two RCAs are investigated in terms of the accumulated damage.},
  subject      = {Schadensakkumulation},
  language  = {en}
}
@article{MaiwaldSchwarzKaufmannetal.,
  author    = {Maiwald, Holger and Schwarz, Jochen and Kaufmann, Christian and Langhammer, Tobias and Golz, Sebastian and Wehner, Theresa},
  title     = {Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events: Prognosis of Structural Damage with a New Approach Considering Flow Velocity},
  series = {Water},
  volume    = {2022},
  journal   = {Water},
  number    = {Volume 14, issue 18, article 2793},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/w14182793},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221012-47254},
  pages     = {1 -- 28},
  abstract  = {The floods in 2002 and 2013, as well as the recent flood of 2021, caused billions Euros worth of property damage in Germany. The aim of the project Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events (INNOVARU) involved the development of a practicable flood damage model that enables realistic damage statements for the residential building stock. In addition to the determination of local flood risks, it also takes into account the vulnerability of individual buildings and allows for the prognosis of structural damage. In this paper, we discuss an improved method for the prognosis of structural damage due to flood impact. Detailed correlations between inundation level and flow velocities depending on the vulnerability of the building types, as well as the number of storeys, are considered. Because reliable damage data from events with high flow velocities were not available, an innovative approach was adopted to cover a wide range of flow velocities. The proposed approach combines comprehensive damage data collected after the 2002 flood in Germany with damage data of the 2011 Tohoku earthquake tsunami in Japan. The application of the developed methods enables a reliable reinterpretation of the structural damage caused by the August flood of 2002 in six study areas in the Free State of Saxony.},
  subject      = {Bauschaden},
  language  = {en}
}
@article{ArnoldKraus,
  author    = {Arnold, Robert and Kraus, Matthias},
  title     = {On the nonstationary identification of climate-influenced loads for the semi-probabilistic approach using measured and projected data},
  series = {Cogent Engineering},
  volume    = {2022},
  journal   = {Cogent Engineering},
  number    = {Volume 9, issue 1, article 2143061},
  editor    = {Pham, Duc},
  publisher = {Taylor \& Francis},
  address   = {London},
  doi       = {10.1080/23311916.2022.2143061},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221117-47363},
  pages     = {1 -- 26},
  abstract  = {A safe and economic structural design based on the semi-probabilistic concept requires statistically representative safety elements, such as characteristic values, design values, and partial safety factors. Regarding climate loads, the safety levels of current design codes strongly reflect experiences based on former measurements and investigations assuming stationary conditions, i.e. involving constant frequencies and intensities. However, due to climate change, occurrence of corresponding extreme weather events is expected to alter in the future influencing the reliability and safety of structures and their components. Based on established approaches, a systematically refined data-driven methodology for the determination of design parameters considering nonstationarity as well as standardized targets of structural reliability or safety, respectively, is therefore proposed. The presented procedure picks up fundamentals of European standardization and extends them with respect to nonstationarity by applying a shifting time window method. Taking projected snow loads into account, the application of the method is exemplarily demonstrated and various influencing parameters are discussed.},
  subject      = {Reliabilit{\"a}t},
  language  = {en}
}
@article{ChowdhuryKraus,
  author    = {Chowdhury, Sharmistha and Kraus, Matthias},
  title     = {Design-related reassessment of structures integrating Bayesian updating of model safety factors},
  series = {Results in Engineering},
  volume    = {2022},
  journal   = {Results in Engineering},
  number    = {Volume 16, article 100560},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.rineng.2022.100560},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221028-47294},
  pages     = {1 -- 1},
  abstract  = {In the semi-probabilistic approach of structural design, the partial safety factors are defined by considering some degree of uncertainties to actions and resistance, associated with the parameters' stochastic nature. However, uncertainties for individual structures can be better examined by incorporating measurement data provided by sensors from an installed health monitoring scheme. In this context, the current study proposes an approach to revise the partial safety factor for existing structures on the action side, γE by integrating Bayesian model updating. A simple numerical example of a beam-like structure with artificially generated measurement data is used such that the influence of different sensor setups and data uncertainties on revising the safety factors can be investigated. It is revealed that the health monitoring system can reassess the current capacity reserve of the structure by updating the design safety factors, resulting in a better life cycle assessment of structures. The outcome is furthermore verified by analysing a real life small railway steel bridge ensuring the applicability of the proposed method to practical applications.},
  subject      = {Lebenszyklus},
  language  = {en}
}
@article{HarirchianIsik,
  author    = {Harirchian, Ehsan and Isik, Ercan},
  title     = {A Comparative Probabilistic Seismic Hazard Analysis for Eastern Turkey (Bitlis) Based on Updated Hazard Map and Its Effect on Regular RC Structures},
  series = {Buildings},
  volume    = {2022},
  journal   = {Buildings},
  number    = {Volume 12, issue 10, article 1573},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/buildings12101573},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221028-47283},
  pages     = {1 -- 19},
  abstract  = {Determining the earthquake hazard of any settlement is one of the primary studies for reducing earthquake damage. Therefore, earthquake hazard maps used for this purpose must be renewed over time. Turkey Earthquake Hazard Map has been used instead of Turkey Earthquake Zones Map since 2019. A probabilistic seismic hazard was performed by using these last two maps and different attenuation relationships for Bitlis Province (Eastern Turkey) were located in the Lake Van Basin, which has a high seismic risk. The earthquake parameters were determined by considering all districts and neighborhoods in the province. Probabilistic seismic hazard analyses were carried out for these settlements using seismic sources and four different attenuation relationships. The obtained values are compared with the design spectrum stated in the last two earthquake maps. Significant differences exist between the design spectrum obtained according to the different exceedance probabilities. In this study, adaptive pushover analyses of sample-reinforced concrete buildings were performed using the design ground motion level. Structural analyses were carried out using three different design spectra, as given in the last two seismic design codes and the mean spectrum obtained from attenuation relationships. Different design spectra significantly change the target displacements predicted for the performance levels of the buildings.},
  subject      = {Erbeben},
  language  = {en}
}
@article{KumariHarirchianLahmeretal.,
  author    = {Kumari, Vandana and Harirchian, Ehsan and Lahmer, Tom and Rasulzade, Shahla},
  title     = {Evaluation of Machine Learning and Web-Based Process for Damage Score Estimation of Existing Buildings},
  series = {Buildings},
  volume    = {2022},
  journal   = {Buildings},
  number    = {Volume 12, issue 5, article 578},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/buildings12050578},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220509-46387},
  pages     = {1 -- 23},
  abstract  = {The seismic vulnerability assessment of existing reinforced concrete (RC) buildings is a significant source of disaster mitigation plans and rescue services. Different countries evolved various Rapid Visual Screening (RVS) techniques and methodologies to deal with the devastating consequences of earthquakes on the structural characteristics of buildings and human casualties. Artificial intelligence (AI) methods, such as machine learning (ML) algorithm-based methods, are increasingly used in various scientific and technical applications. The investigation toward using these techniques in civil engineering applications has shown encouraging results and reduced human intervention, including uncertainties and biased judgment. In this study, several known non-parametric algorithms are investigated toward RVS using a dataset employing different earthquakes. Moreover, the methodology encourages the possibility of examining the buildings' vulnerability based on the factors related to the buildings' importance and exposure. In addition, a web-based application built on Django is introduced. The interface is designed with the idea to ease the seismic vulnerability investigation in real-time. The concept was validated using two case studies, and the achieved results showed the proposed approach's potential efficiency},
  subject      = {Maschinelles Lernen},
  language  = {en}
}
@article{BuschowSuhrSerger,
  author    = {Buschow, Christopher and Suhr, Maike and Serger, Hauke},
  title     = {Media Work as Field Advancement: The Case of Science Media Center Germany},
  series = {Media and Communication},
  volume    = {2022},
  journal   = {Media and Communication},
  number    = {Volume 10, issue 1},
  publisher = {Cogitatio Press},
  address   = {Lisbon},
  doi       = {10.17645/mac.v10i1.4454},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220125-45709},
  pages     = {99 -- 109},
  abstract  = {In the wake of the news industry's digitization, novel organizations that differ considerably from traditional media firms in terms of their functional roles and organizational practices of media work are emerging. One new type is the field repair organization, which is characterized by supporting high-quality media work to compensate for the deficits (such as those which come from cost savings and layoffs) which have become apparent in legacy media today. From a practice-theoretical research perspective and based on semi-structured interviews, virtual field observations, and document analysis, we have conducted a single case study on Science Media Center Germany (SMC), a unique non-profit news start-up launched in 2016 in Cologne, Germany. Our findings show that, in addition to field repair activities, SMC aims to facilitate progress and innovation in the field, which we refer to as field advancement. This helps to uncover emerging needs and anticipates problems before they intensify or even occur, proactively providing products and tools for future journalism. This article contributes to our understanding of novel media organizations with distinct functions in the news industry, allowing for advancements in theory on media work and the organization of journalism in times of digital upheaval.},
  subject      = {Journalismus},
  language  = {en}
}
@article{ArtusAlabassyKoch,
  author    = {Artus, Mathias and Alabassy, Mohamed Said Helmy and Koch, Christian},
  title     = {A BIM Based Framework for Damage Segmentation, Modeling, and Visualization Using IFC},
  series = {Applied Sciences},
  volume    = {2022},
  journal   = {Applied Sciences},
  number    = {volume 12, issue 6, article 2772},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/app12062772},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220314-46059},
  pages     = {1 -- 24},
  abstract  = {Paper-based data acquisition and manual transfer between incompatible software or data formats during inspections of bridges, as done currently, are time-consuming, error-prone, cumbersome, and lead to information loss. A fully digitized workflow using open data formats would reduce data loss, efforts, and the costs of future inspections. On the one hand, existing studies proposed methods to automatize data acquisition and visualization for inspections. These studies lack an open standard to make the gathered data available for other processes. On the other hand, several studies discuss data structures for exchanging damage information among different stakeholders. However, those studies do not cover the process of automatic data acquisition and transfer. This study focuses on a framework that incorporates automatic damage data acquisition, transfer, and a damage information model for data exchange. This enables inspectors to use damage data for subsequent analyses and simulations. The proposed framework shows the potentials for a comprehensive damage information model and related (semi-)automatic data acquisition and processing.},
  subject      = {Building Information Modeling},
  language  = {en}
}
@article{AlsaadHartmannVoelker,
  author    = {Alsaad, Hayder and Hartmann, Maria and V{\"o}lker, Conrad},
  title     = {Hygrothermal simulation data of a living wall system for decentralized greywater treatment},
  series = {Data in Brief},
  volume    = {2022},
  journal   = {Data in Brief},
  number    = {volume 40, article 107741},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.dib.2021.107741},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220106-45483},
  pages     = {12},
  abstract  = {This dataset presents the numerical analysis of the heat and moisture transport through a facade equipped with a living wall system designated for greywater treatment. While such greening systems provide many environmental benefits, they involve pumping large quantities of water onto the wall assembly, which can increase the risk of moisture in the wall as well as impaired energetic performance due to increased thermal conductivity with increased moisture content in the building materials. This dataset was acquired through numerical simulation using the coupling of two simulation tools, namely Envi-Met and Delphin. This coupling was used to include the complex role the plants play in shaping the near-wall environmental parameters in the hygrothermal simulations. Four different wall assemblies were investigated, each assembly was assessed twice: with and without the living wall. The presented data include the input and output parameters of the simulations, which were presented in the co-submitted article [1].},
  subject      = {Kupplung},
  language  = {en}
}
@article{WelchGuerra,
  author    = {Welch Guerra, Max},
  title     = {Fach, Gesellschaft und Wissenschaft. Beitrag zur Debatte „Was ist Stadt? Was ist Kritik?"},
  series = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  volume    = {2022},
  journal   = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  number    = {Band 10, Nr. 1},
  publisher = {Sub\urban e.V.},
  address   = {Leipzig},
  doi       = {10.36900/suburban.v10i1.779},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220810-46855},
  pages     = {188 -- 190},
  abstract  = {Der Aufruf, die Begriffe Stadt und Kritik in das Zentrum einer Debatte zu stellen, bietet die große Chance, uns weit {\"u}ber begriffliche Kl{\"a}rungen unseres gemeinsamen Arbeitsgegenstands hinaus - die ja auch f{\"u}r sich selbst sehr fruchtbar sein k{\"o}nnen - {\"u}ber die Funktion zu verst{\"a}ndigen, die wir in der Gesellschaft aus{\"u}ben, wenn wir r{\"a}umliche Planung praktizieren, erforschen und lehren. Da in der Bundesrepublik nicht nur ein großer Bedarf, sondern auch eine betr{\"a}chtliche Nachfrage nach {\"o}ffentlicher Planung besteht und die planungsbezogenen Wissenschaften sich eines insgesamt stabilen institutionellen Standes erfreuen, laufen wir Gefahr, die gesellschaftspolitische Legitimation von Berufsfeld und Wissenschaft zu vernachl{\"a}ssigen, sie als gegeben zu behandeln. Wir m{\"u}ssen uns ja kaum rechtfertigen.},
  subject      = {Stadt},
  language  = {de}
}
@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}
}
@phdthesis{Gollub,
  author    = {Gollub, Tim},
  title     = {Information Retrieval for the Digital Humanities},
  doi       = {10.25643/bauhaus-universitaet.4673},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220801-46738},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {177},
  abstract  = {In ten chapters, this thesis presents information retrieval technology which is tailored to the research activities that arise in the context of corpus-based digital humanities projects. The presentation is structured by a conceptual research process that is introduced in Chapter 1. The process distinguishes a set of five research activities: research question generation, corpus acquisition, research question modeling, corpus annotation, and result dissemination. Each of these research activities elicits different information retrieval tasks with special challenges, for which algorithmic approaches are presented after an introduction of the core information retrieval concepts in Chapter 2. A vital concept in many of the presented approaches is the keyquery paradigm introduced in Chapter 3, which represents an operation that returns relevant search queries in response to a given set of input documents. Keyqueries are proposed in Chapter 4 for the recommendation of related work, and in Chapter 5 for improving access to aspects hidden in the long tail of search result lists. With pseudo-descriptions, a document expansion approach is presented in Chapter 6. The approach improves the retrieval performance for corpora where only bibliographic meta-data is originally available. In Chapter 7, the keyquery paradigm is employed to generate dynamic taxonomies for corpora in an unsupervised fashion. Chapter 8 turns to the exploration of annotated corpora, and presents scoped facets as a conceptual extension to faceted search systems, which is particularly useful in exploratory search settings. For the purpose of highlighting the major topical differences in a sequence of sub-corpora, an algorithm called topical sequence profiling is presented in Chapter 9. The thesis concludes with two pilot studies regarding the visualization of (re)search results for the means of successful result dissemination: a metaphoric interpretation of the information nutrition label, as well as the philosophical bodies, which are 3D-printed search results.},
  subject      = {Information Retrieval},
  language  = {en}
}
@article{SoebkeLueck,
  author    = {S{\"o}bke, Heinrich and L{\"u}ck, Andrea},
  title     = {Framing Algorithm-Driven Development of Sets of Objectives Using Elementary Interactions},
  series = {Applied System Innovation},
  volume    = {2022},
  journal   = {Applied System Innovation},
  number    = {Volume 5, issue 3, article 49},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/asi5030049},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220713-46624},
  pages     = {1 -- 20},
  abstract  = {Multi-criteria decision analysis (MCDA) is an established methodology to support the decision-making of multi-objective problems. For conducting an MCDA, in most cases, a set of objectives (SOO) is required, which consists of a hierarchical structure comprised of objectives, criteria, and indicators. The development of an SOO is usually based on moderated development processes requiring high organizational and cognitive effort from all stakeholders involved. This article proposes elementary interactions as a key paradigm of an algorithm-driven development process for an SOO that requires little moderation efforts. Elementary interactions are self-contained information requests that may be answered with little cognitive effort. The pairwise comparison of elements in the well-known analytical hierarchical process (AHP) is an example of an elementary interaction. Each elementary interaction in the development process presented contributes to the stepwise development of an SOO. Based on the hypothesis that an SOO may be developed exclusively using elementary interactions (EIs), a concept for a multi-user platform is proposed. Essential components of the platform are a Model Aggregator, an Elementary Interaction Stream Generator, a Participant Manager, and a Discussion Forum. While the latter component serves the professional exchange of the participants, the first three components are intended to be automatable by algorithms. The platform concept proposed has been evaluated partly in an explorative validation study demonstrating the general functionality of the algorithms outlined. In summary, the platform concept suggested demonstrates the potential to ease SOO development processes as the platform concept does not restrict the application domain; it is intended to work with little administration moderation efforts, and it supports the further development of an existing SOO in the event of changes in external conditions. The algorithm-driven development of SOOs proposed in this article may ease the development of MCDA applications and, thus, may have a positive effect on the spread of MCDA applications.},
  subject      = {Multikriteria-Entscheidung},
  language  = {en}
}
@article{GuerlebeckLegatiukWebber,
  author    = {G{\"u}rlebeck, Klaus and Legatiuk, Dmitrii and Webber, Kemmar},
  title     = {Operator Calculus Approach to Comparison of Elasticity Models for Modelling of Masonry Structures},
  series = {Mathematics},
  volume    = {2022},
  journal   = {Mathematics},
  number    = {Volume 10, issue 10, article 1670},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/math10101670},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220721-46726},
  pages     = {1 -- 22},
  abstract  = {The solution of any engineering problem starts with a modelling process aimed at formulating a mathematical model, which must describe the problem under consideration with sufficient precision. Because of heterogeneity of modern engineering applications, mathematical modelling scatters nowadays from incredibly precise micro- and even nano-modelling of materials to macro-modelling, which is more appropriate for practical engineering computations. In the field of masonry structures, a macro-model of the material can be constructed based on various elasticity theories, such as classical elasticity, micropolar elasticity and Cosserat elasticity. Evidently, a different macro-behaviour is expected depending on the specific theory used in the background. Although there have been several theoretical studies of different elasticity theories in recent years, there is still a lack of understanding of how modelling assumptions of different elasticity theories influence the modelling results of masonry structures. Therefore, a rigorous approach to comparison of different three-dimensional elasticity models based on quaternionic operator calculus is proposed in this paper. In this way, three elasticity models are described and spatial boundary value problems for these models are discussed. In particular, explicit representation formulae for their solutions are constructed. After that, by using these representation formulae, explicit estimates for the solutions obtained by different elasticity theories are obtained. Finally, several numerical examples are presented, which indicate a practical difference in the solutions.},
  subject      = {Mauerwerk},
  language  = {en}
}
@article{TeitelbaumAlsaadAvivetal.,
  author    = {Teitelbaum, Eric and Alsaad, Hayder and Aviv, Dorit and Kim, Alexander and V{\"o}lker, Conrad and Meggers, Forrest and Pantelic, Jovan},
  title     = {Addressing a systematic error correcting for free and mixed convection when measuring mean radiant temperature with globe thermometers},
  series = {Scientific reports},
  volume    = {2022},
  journal   = {Scientific reports},
  number    = {Volume 12, article 6473},
  publisher = {Springer Nature},
  address   = {London},
  doi       = {10.1038/s41598-022-10172-5},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220509-46363},
  pages     = {18},
  abstract  = {It is widely accepted that most people spend the majority of their lives indoors. Most individuals do not realize that while indoors, roughly half of heat exchange affecting their thermal comfort is in the form of thermal infrared radiation. We show that while researchers have been aware of its thermal comfort significance over the past century, systemic error has crept into the most common evaluation techniques, preventing adequate characterization of the radiant environment. Measuring and characterizing radiant heat transfer is a critical component of both building energy efficiency and occupant thermal comfort and productivity. Globe thermometers are typically used to measure mean radiant temperature (MRT), a commonly used metric for accounting for the radiant effects of an environment at a point in space. In this paper we extend previous field work to a controlled laboratory setting to (1) rigorously demonstrate that existing correction factors used in the American Society of Heating Ventilation and Air-conditioning Engineers (ASHRAE) Standard 55 or ISO7726 for using globe thermometers to quantify MRT are not sufficient; (2) develop a correction to improve the use of globe thermometers to address problems in the current standards; and (3) show that mean radiant temperature measured with ping-pong ball-sized globe thermometers is not reliable due to a stochastic convective bias. We also provide an analysis of the maximum precision of globe sensors themselves, a piece missing from the domain in contemporary literature.},
  subject      = {Strahlungstemperatur},
  language  = {en}
}
@article{TarabenMorgenthal,
  author    = {Taraben, Jakob and Morgenthal, Guido},
  title     = {Integration and Comparison Methods for Multitemporal Image-Based 2D Annotations in Linked 3D Building Documentation},
  series = {Remote Sensing},
  volume    = {2022},
  journal   = {Remote Sensing},
  number    = {Volume 14, issue 9, article 2286},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/rs14092286},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220513-46488},
  pages     = {1 -- 20},
  abstract  = {Data acquisition systems and methods to capture high-resolution images or reconstruct 3D point clouds of existing structures are an effective way to document their as-is condition. These methods enable a detailed analysis of building surfaces, providing precise 3D representations. However, for the condition assessment and documentation, damages are mainly annotated in 2D representations, such as images, orthophotos, or technical drawings, which do not allow for the application of a 3D workflow or automated comparisons of multitemporal datasets. In the available software for building heritage data management and analysis, a wide range of annotation and evaluation functions are available, but they also lack integrated post-processing methods and systematic workflows. The article presents novel methods developed to facilitate such automated 3D workflows and validates them on a small historic church building in Thuringia, Germany. Post-processing steps using photogrammetric 3D reconstruction data along with imagery were implemented, which show the possibilities of integrating 2D annotations into 3D documentations. Further, the application of voxel-based methods on the dataset enables the evaluation of geometrical changes of multitemporal annotations in different states and the assignment to elements of scans or building models. The proposed workflow also highlights the potential of these methods for condition assessment and planning of restoration work, as well as the possibility to represent the analysis results in standardised building model formats.},
  subject      = {Bauwesen},
  language  = {en}
}
@article{AlsaadHartmannHilbeletal.,
  author    = {Alsaad, Hayder and Hartmann, Maria and Hilbel, Rebecca and V{\"o}lker, Conrad},
  title     = {ENVI-met validation data accompanied with simulation data of the impact of facade greening on the urban microclimate},
  series = {Data in Brief},
  volume    = {2022},
  journal   = {Data in Brief},
  number    = {Volume 42, article 108200},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.dib.2022.108200},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220511-46455},
  pages     = {1 -- 13},
  abstract  = {This dataset consists mainly of two subsets. The first subset includes measurements and simulation data conducted to validate the simulation tool ENVI-met. The measurements were conducted at the campus of the Bauhaus-University Weimar in Weimar, Germany and consisted of recording exterior air temperature, globe temperature, relative humidity, and wind velocity at 1.5 m at four points on four different days. After the measurements, the geometry of the campus was modelled and meshed; the simulations were conducted using the weather data of the measurements days with the aim of investigating the accuracy of the model. The second data subset consists of ENVI-met simulation data of the potential of facade greening in improving the outdoor environment and the indoor air temperature during heatwaves in Central European cities. The data consist of the boundary conditions and the simulation output of two simulation models: with and without facade greening. The geometry of the models corresponded to a residential buildings district in Stuttgart, Germany. The simulation output consisted of exterior air temperature, mean radiant temperature, relative humidity, and wind velocity at 12 different probe points in the model in addition to the indoor air temperature of an exemplary building. The dataset presents both vertical profiles of the probed parameters as well as the time series output of the five-day simulation duration. Both data subsets correspond to the investigations presented in the co-submitted article [1].},
  subject      = {Messung},
  language  = {en}
}
@article{Hanna,
  author    = {Hanna, John},
  title     = {Computational Modelling for the Effects of Capsular Clustering on Fracture of Encapsulation-Based Self-Healing Concrete Using XFEM and Cohesive Surface Technique},
  series = {Applied Sciences},
  volume    = {2022},
  journal   = {Applied Sciences},
  number    = {Volume 12, issue 10, article 5112},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/app12105112},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220721-46717},
  pages     = {1 -- 17},
  abstract  = {The fracture of microcapsules is an important issue to release the healing agent for healing the cracks in encapsulation-based self-healing concrete. The capsular clustering generated from the concrete mixing process is considered one of the critical factors in the fracture mechanism. Since there is a lack of studies in the literature regarding this issue, the design of self-healing concrete cannot be made without an appropriate modelling strategy. In this paper, the effects of microcapsule size and clustering on the fractured microcapsules are studied computationally. A simple 2D computational modelling approach is developed based on the eXtended Finite Element Method (XFEM) and cohesive surface technique. The proposed model shows that the microcapsule size and clustering have significant roles in governing the load-carrying capacity and the crack propagation pattern and determines whether the microcapsule will be fractured or debonded from the concrete matrix. The higher the microcapsule circumferential contact length, the higher the load-carrying capacity. When it is lower than 25\% of the microcapsule circumference, it will result in a greater possibility for the debonding of the microcapsule from the concrete. The greater the core/shell ratio (smaller shell thickness), the greater the likelihood of microcapsules being fractured.},
  subject      = {Beton},
  language  = {en}
}
@book{BeeBergermannKecketal.,
  author    = {Bee, Julia and Bergermann, Ulrike and Keck, Linda and Sander, Sarah and Schwaab, Herbert and Stauff, Markus and Wagner, Franzi},
  title     = {Fahrradutopien. Medien, {\"A}sthetiken und Aktivismus},
  publisher = {meson press},
  address   = {L{\"u}neburg},
  isbn      = {978-3-95796-196-9},
  doi       = {10.14619/1952},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220809-46743},
  publisher      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {266},
  abstract  = {Das Fahrrad ist ein Medium sozialer Ver{\"a}nderung. Seine vielf{\"a}ltigen utopischen Potenziale ergeben sich nicht zuletzt aus seinen ebenso vielf{\"a}ltigen und h{\"a}ufig {\"u}bersehenen medialen Qualit{\"a}ten: Es vermittelt, es verbindet, es {\"u}bersetzt; es modifiziert Wahrnehmung und Organisation von Raum und Zeit, von K{\"o}rpern und von Sozialit{\"a}t. Umgekehrt kann auch das medienwissenschaftliche Denken fahrradmedial ver{\"a}ndert werden. Das Fahrrad ist nicht nur Medium des sozialen und {\"o}kologischen Wandels: Radfahren er{\"o}ffnet Perspektiven, ver{\"a}ndert R{\"a}ume, l{\"a}sst neue Relationen entstehen und teilt Handlungsmacht neu auf. Fahrradutopien denkt vom Fahrrad aus und erg{\"a}nzt dabei bestehende Ans{\"a}tze zur Mobilit{\"a}tsforschung um medienkulturwissenschaftliche Perspektiven. Die Beitr{\"a}ge verbinden Medienwissenschaften und Forschungen zu Fahrradaktivismus mit der Liebe zum Radfahren. Fokussiert werden Fahrradfilme und -vlogs, Verkehr und Infrastrukturen, Virtuelle Realit{\"a}t und Fahrrad, Fahrradkollektive und Fahrradfeminismus.},
  subject      = {Fahrrad},
  language  = {de}
}
@article{SimonRitz,
  author    = {Simon-Ritz, Frank},
  title     = {Zwischen Residenzkultur und Bratwursttradition: Th{\"u}ringer UNESCO-Initiativen},
  series = {Palmbaum: Literarisches Journal aus Th{\"u}ringen},
  volume    = {2022},
  journal   = {Palmbaum: Literarisches Journal aus Th{\"u}ringen},
  number    = {Heft 1},
  publisher = {Quartus Verlag},
  address   = {Bucha bei Jena},
  doi       = {10.25643/bauhaus-universitaet.4628},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220413-46282},
  pages     = {4},
  abstract  = {Der Essay, der in H. 1/2022 des "Palmbaum: literarisches Journal aus Th{\"u}ringen" erschienen ist, besch{\"a}ftigt sich mit dem Begriff des "kulturellen Erbes", der verschiedenen UNESCO-Programmen zugrundeliegt.},
  subject      = {Kultur},
  language  = {de}
}
@misc{RaabMueller,
  author    = {Raab, Susanna and M{\"u}ller, Hannah},
  title     = {LebensMittelPunkte schaffen in Kooperation! Ein Handlungsleitfaden f{\"u}r die Zusammenarbeit von bezirklicher Verwaltung und ern{\"a}hrungspolitischen Initiativen},
  doi       = {10.25643/bauhaus-universitaet.4734},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221109-47347},
  pages     = {10},
  abstract  = {Zugang zu gesunder und nachhaltiger Ern{\"a}hrung ist in Berlin nicht f{\"u}r alle Menschen eine Selbstverst{\"a}ndlichkeit. Um Ern{\"a}hrung f{\"u}r alle gew{\"a}hrleisten zu k{\"o}nnen, braucht es einen Wandel des Ern{\"a}hrungssystems in Berlin, der eine {\"o}kologische, klima- und sozialgerechte Nahrungsproduktion und Verteilung f{\"u}r alle Menschen in der Stadt erm{\"o}glicht. Einen Beitrag um die Ern{\"a}hrung in der Stadt gerechter und nachhaltiger zu gestalten kann ein sogenannter LebensMittelPunkt (LMP) leisten. LebensMittelPunkte entstehen meist aus ehrenamtlichen Initiativen, k{\"o}nnen aber auch in Zusammenarbeit mit st{\"a}dtischen Verwaltungen etabliert werden. Eine Zusammenarbeit zwischen zivilgesellschaftlichen Organisationen und Verwaltungen kann dabei Potenziale und Ressourcen freisetzen. Dieser Leitfaden soll ern{\"a}hrungspolitischen Initiativen und Vereinen aus der Zivilgesellschaft sowie kommunalen oder bezirklichen Verwaltungen in Berlin - und dar{\"u}ber hinaus - Empfehlungen geben, wie ein LebensMittelPunkt in einer gemeinsamen Kooperation aufgebaut werden kann.},
  subject      = {Ern{\"a}hrung},
  language  = {de}
}
@article{RoskammVollmer,
  author    = {Roskamm, Nikolai and Vollmer, Lisa},
  title     = {Was ist Stadt? Was ist Kritik? Einf{\"u}hrung in die Debatte zum Jubil{\"a}umsheft von sub\urban},
  series = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  journal   = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  number    = {Band 10, Nr. 1,},
  publisher = {Sub\urban e.V.},
  address   = {Leipzig},
  doi       = {10.36900/suburban.v10i1.798},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220811-46847},
  pages     = {127 -- 130},
  abstract  = {Im Heft zum zehnj{\"a}hrigen Jubil{\"a}um von sub\urban mit dem Themenschwerpunkt „sub\x: Verortungen, Entortungen" ver{\"o}ffentlichen wir eine Debatte, die von den bisherigen in unserer Zeitschrift in dieser Rubrik gef{\"u}hrten textlichen Diskussionen abweicht. Im Vorfeld der Planungen f{\"u}r unsere Jubil{\"a}umsausgabe haben wir die aktuellen Mitglieder unseres wissenschaftlichen Beirats darum gebeten, zwei grundlegende Fragen von kritischer Stadtforschung in kurzen Beitr{\"a}gen zu diskutieren: Was ist Stadt? Was ist Kritik?},
  subject      = {Stadt},
  language  = {de}
}
@phdthesis{Wang,
  author    = {Wang, Jiasheng},
  title     = {Lebensdauerabsch{\"a}tzung von Bauteilen aus globularem Grauguss auf der Grundlage der lokalen gießprozessabh{\"a}ngigen Werkstoffzust{\"a}nde},
  doi       = {10.25643/bauhaus-universitaet.4554},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220111-45542},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {165},
  abstract  = {Das Ziel der Arbeit ist, eine m{\"o}gliche Verbesserung der G{\"u}te der Lebensdauervorhersage f{\"u}r Gusseisenwerkstoffe mit Kugelgraphit zu erreichen, wobei die Gießprozesse verschiedener Hersteller ber{\"u}cksichtigt werden. Im ersten Schritt wurden Probenk{\"o}rper aus GJS500 und GJS600 von mehreren Gusslieferanten gegossen und daraus Schwingproben erstellt. Insgesamt wurden Schwingfestigkeitswerte der einzelnen gegossenen Proben sowie der Proben des Bauteils von verschiedenen Gussherstellern weltweit entweder durch direkte Schwingversuche oder durch eine Sammlung von Betriebsfestigkeitsversuchen bestimmt. Dank der metallografischen Arbeit und Korrelationsanalyse konnten drei wesentliche Parameter zur Bestimmung der lokalen Dauerfestigkeit festgestellt werden: 1. statische Festigkeit, 2. Ferrit- und Perlitanteil der Mikrostrukturen und 3. Kugelgraphitanzahl pro Fl{\"a}cheneinheit. Basierend auf diesen Erkenntnissen wurde ein neues Festigkeitsverh{\"a}ltnisdiagramm (sogenanntes Sd/Rm-SG-Diagramm) entwickelt. Diese neue Methodik sollte vor allem erm{\"o}glichen, die Bauteildauerfestigkeit auf der Grundlage der gemessenen oder durch eine Gießsimulation vorhersagten lokalen Zugfestigkeitswerte sowie Mikrogef{\"u}genstrukturen besser zu prognostizieren. Mithilfe der Versuche sowie der Gießsimulation ist es gelungen, unterschiedliche Methoden der Lebensdauervorhersage unter Ber{\"u}cksichtigung der Herstellungsprozesse weiterzuentwickeln.},
  subject      = {Grauguss},
  language  = {de}
}
@phdthesis{Valizadeh,
  author    = {Valizadeh, Navid},
  title     = {Developments in Isogeometric Analysis and Application to High-Order Phase-Field Models of Biomembranes},
  doi       = {10.25643/bauhaus-universitaet.4565},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220114-45658},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Isogeometric analysis (IGA) is a numerical method for solving partial differential equations (PDEs), which was introduced with the aim of integrating finite element analysis with computer-aided design systems. The main idea of the method is to use the same spline basis functions which describe the geometry in CAD systems for the approximation of solution fields in the finite element method (FEM). Originally, NURBS which is a standard technology employed in CAD systems was adopted as basis functions in IGA but there were several variants of IGA using other technologies such as T-splines, PHT splines, and subdivision surfaces as basis functions. In general, IGA offers two key advantages over classical FEM: (i) by describing the CAD geometry exactly using smooth, high-order spline functions, the mesh generation process is simplified and the interoperability between CAD and FEM is improved, (ii) IGA can be viewed as a high-order finite element method which offers basis functions with high inter-element continuity and therefore can provide a primal variational formulation of high-order PDEs in a straightforward fashion. The main goal of this thesis is to further advance isogeometric analysis by exploiting these major advantages, namely precise geometric modeling and the use of smooth high-order splines as basis functions, and develop robust computational methods for problems with complex geometry and/or complex multi-physics. As the first contribution of this thesis, we leverage the precise geometric modeling of isogeometric analysis and propose a new method for its coupling with meshfree discretizations. We exploit the strengths of both methods by using IGA to provide a smooth, geometrically-exact surface discretization of the problem domain boundary, while the Reproducing Kernel Particle Method (RKPM) discretization is used to provide the volumetric discretization of the domain interior. The coupling strategy is based upon the higher-order consistency or reproducing conditions that are directly imposed in the physical domain. The resulting coupled method enjoys several favorable features: (i) it preserves the geometric exactness of IGA, (ii) it circumvents the need for global volumetric parameterization of the problem domain, (iii) it achieves arbitrary-order approximation accuracy while preserving higher-order smoothness of the discretization. Several numerical examples are solved to show the optimal convergence properties of the coupled IGA-RKPM formulation, and to demonstrate its effectiveness in constructing volumetric discretizations for complex-geometry objects. As for the next contribution, we exploit the use of smooth, high-order spline basis functions in IGA to solve high-order surface PDEs governing the morphological evolution of vesicles. These governing equations are often consisted of geometric PDEs, high-order PDEs on stationary or evolving surfaces, or a combination of them. We propose an isogeometric formulation for solving these PDEs. In the context of geometric PDEs, we consider phase-field approximations of mean curvature flow and Willmore flow problems and numerically study the convergence behavior of isogeometric analysis for these problems. As a model problem for high-order PDEs on stationary surfaces, we consider the Cahn-Hilliard equation on a sphere, where the surface is modeled using a phase-field approach. As for the high-order PDEs on evolving surfaces, a phase-field model of a deforming multi-component vesicle, which consists of two fourth-order nonlinear PDEs, is solved using the isogeometric analysis in a primal variational framework. Through several numerical examples in 2D, 3D and axisymmetric 3D settings, we show the robustness of IGA for solving the considered phase-field models. Finally, we present a monolithic, implicit formulation based on isogeometric analysis and generalized-alpha time integration for simulating hydrodynamics of vesicles according to a phase-field model. Compared to earlier works, the number of equations of the phase-field model which need to be solved is reduced by leveraging high continuity of NURBS functions, and the algorithm is extended to 3D settings. We use residual-based variational multi-scale method (RBVMS) for solving Navier-Stokes equations, while the rest of PDEs in the phase-field model are treated using a standard Galerkin-based IGA. We introduce the resistive immersed surface (RIS) method into the formulation which can be employed for an implicit description of complex geometries using a diffuse-interface approach. The implementation highlights the robustness of the RBVMS method for Navier-Stokes equations of incompressible flows with non-trivial localized forcing terms including bending and tension forces of the vesicle. The potential of the phase-field model and isogeometric analysis for accurate simulation of a variety of fluid-vesicle interaction problems in 2D and 3D is demonstrated.},
  subject      = {Phasenfeldmodell},
  language  = {en}
}
@phdthesis{Jenabidehkordi,
  author    = {Jenabidehkordi, Ali},
  title     = {An efficient adaptive PD formulation for complex microstructures},
  doi       = {10.25643/bauhaus-universitaet.4738},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20221116-47389},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {118},
  abstract  = {The computational costs of newly developed numerical simulation play a critical role in their acceptance within both academic use and industrial employment. Normally, the refinement of a method in the area of interest reduces the computational cost. This is unfortunately not true for most nonlocal simulation, since refinement typically increases the size of the material point neighborhood. Reducing the discretization size while keep- ing the neighborhood size will often require extra consideration. Peridynamic (PD) is a newly developed numerical method with nonlocal nature. Its straightforward integral form equation of motion allows simulating dynamic problems without any extra consideration required. The formation of crack and its propagation is known as natural to peridynamic. This means that discontinuity is a result of the simulation and does not demand any post-processing. As with other nonlocal methods, PD is considered an expensive method. The refinement of the nodal spacing while keeping the neighborhood size (i.e., horizon radius) constant, emerges to several nonphysical phenomena. This research aims to reduce the peridynamic computational and imple- mentation costs. A novel refinement approach is introduced. The pro- posed approach takes advantage of the PD flexibility in choosing the shape of the horizon by introducing multiple domains (with no intersections) to the nodes of the refinement zone. It will be shown that no ghost forces will be created when changing the horizon sizes in both subdomains. The approach is applied to both bond-based and state-based peridynamic and verified for a simple wave propagation refinement problem illustrating the efficiency of the method. Further development of the method for higher dimensions proves to have a direct relationship with the mesh sensitivity of the PD. A method for solving the mesh sensitivity of the PD is intro- duced. The application of the method will be examined by solving a crack propagation problem similar to those reported in the literature. New software architecture is proposed considering both academic and in- dustrial use. The available simulation tools for employing PD will be collected, and their advantages and drawbacks will be addressed. The challenges of implementing any node base nonlocal methods while max- imizing the software flexibility to further development and modification will be discussed and addressed. A software named Relation-Based Sim- ulator (RBS) is developed for examining the proposed architecture. The exceptional capabilities of RBS will be explored by simulating three distinguished models. RBS is available publicly and open to further develop- ment. The industrial acceptance of the RBS will be tested by targeting its performance on one Mac and two Linux distributions.},
  subject      = {Peridynamik},
  language  = {en}
}
@phdthesis{Schlaffke,
  author    = {Schlaffke, Markus},
  title     = {Die Rekonstruktion des Menaka-Archivs: Navigationen durch die Tanz-Moderne zwischen Kolkata, Mumbai und Berlin 1936-38},
  doi       = {10.25643/bauhaus-universitaet.4706},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220823-47069},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Die Europatournee des Indischen Menaka-Balletts von 1936-38 ist der Ausgangspunkt dieser archivologischen Navigation entlang der Spuren indischer K{\"u}nstlerInnen in Europa. In einer breit angelegten Archivrecherche wurden dazu Dokumente, Fundst{\"u}cke, orale Erinnerungen und ethnografische Beobachtungen aus dem Kontext der Menaka-Tournee durch das nationalsozialistische Deutschland zusammengetragen. Das Buch beschreibt den Rekonstruktionsprozess eines bedeutsamen Projekts der indischen Tanzmoderne. Es verfolgt dabei eine Methode, mit der sich die fragmentierten Dokumente des Medienereignisses als Spur lesen lassen und nutzt eine k{\"u}nstlerisch-forschende Involvierung in gegenw{\"a}rtige Erinnerungspolitiken, in welche die verflochtenen Strukturen der k{\"u}nstlerischen Avantgarde zwischen Kolkata, Mumbai und Berlin hineinreichen. Die Spur des Menaka-Ballett erweist sich dabei als Teil weitreichender ideologischer, t{\"a}nzerischer, musikalischer, filmischer und literarischer Str{\"o}mungen, die auch in gegenw{\"a}rtigen kulturellen Bestimmungen fortwirken. Fotografien, Zeitungsberichte, Film- und Tonaufnahmen, Briefe und pers{\"o}nliche Erinnerungst{\"u}cke erz{\"a}hlen davon, wie sich, vor dem Hintergrund der im antikolonialen Aufbruch befindlichen Kulturreform in Indien, und der nationsozialistisch-v{\"o}lkischen Kulturpolitik in Deutschland, die T{\"a}nzerinnen und Musiker der indischen Ballettgruppe und die deutsche {\"O}ffentlichkeit im gegenseitigen Spiegel betrachteten, w{\"a}hrend die Vorzeichen des kommenden Krieges immer deutlicher wurden.},
  subject      = {Menaka <Madame>},
  language  = {de}
}
@phdthesis{Partschefeld,
  author    = {Partschefeld, Stephan},
  title     = {Synthese von Fließmitteln aus St{\"a}rke und Untersuchung der Wechselwirkung mit Portlandzement},
  doi       = {10.25643/bauhaus-universitaet.4640},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220505-46402},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {145},
  abstract  = {Das Ziel dieser Arbeit war es, neuartige Fließmittel auf Basis von St{\"a}rke als nachwachsenden Rohstoff zu synthetisieren und die Wechselwirkung mit Portlandzement zu charakterisieren. Die Notwendigkeit, Alternativen zu synthetischen Zusatzmittel zu erforschen, ergibt sich aus der ben{\"o}tigten Menge zur Verarbeitung von ca. 4,1 Gt/a, wobei ca. 85 \% der Zusatzmittel auf die Fließmittel entfallen. Um Fließmittel aus St{\"a}rke zu synthetisieren, wurden drei Basisst{\"a}rken unterschiedlicher Herkunft verwendet. Es wurde eine Maniokst{\"a}rke mit einer niedrigen Molekularmasse und eine Weizenst{\"a}rke mit einer hohen Molekularmasse verwendet. Dar{\"u}ber hinaus wurde eine Kartoffelst{\"a}rke mit einer mittleren Molekularmasse, die ein Abfallprodukt der kartoffelverarbeitenden Industrie darstellt, genutzt. Die St{\"a}rkefließmittel wurden durch chemische Modifikation in einem zweistufigen Prozess synthetisiert. Im ersten Schritt wurde das Molekulargewicht der Weizen- und Kartoffelst{\"a}rke durch s{\"a}urehydrolytischen Abbau verringert. F{\"u}r die kurzkettige Maniokst{\"a}rke war eine Degradation der Molekularmasse nicht notwendig. Im zweiten Syntheseschritt wurden anionische Ladungen durch das Versetzen der degradierten St{\"a}rken und Maniokst{\"a}rke mit Natriumvinylsulfonat in die St{\"a}rkemolek{\"u}le eingef{\"u}hrt. Beurteilung der Synthesemethode zur Erzeugung von St{\"a}rkefließmitteln In diesem Zusammenhang sollten molekulare Parameter der St{\"a}rkefließmittel gezielt eingestellt werden, um eine Fließwirkung im Portlandzement zu erhalten. Insbesondere die Molekularmasse und die Menge anionischer Ladungen sollte variiert werden, um Abh{\"a}ngigkeiten mit der Dispergierleistung zu identifizieren. 1. Es konnte durch GPC-Messungen gezeigt werden, dass die Molekularmasse der langkettigen Weizenst{\"a}rke durch die gew{\"a}hlten Modifizierungsbedingungen zum s{\"a}urehydrolytischen Abbau verringert werden konnte. Durch Variation der s{\"a}urehydrolytischen Bedingungen wurden 4 degradierte Weizenst{\"a}rken erzeugt, die eine Reduzierung der Molekularmasse um 27,5 - 43 \% aufwiesen. Die Molekularmasse der Kartoffelst{\"a}rke konnte durch s{\"a}urehydrolytischen Abbau um ca. 26 \% verringert werden. 2. Durch PCD-Messungen wurde gezeigt, dass anionische Ladungen durch Sulfoethylierung der freien Hydroxylgruppen in die degradierten St{\"a}rken eingef{\"u}hrt werden konnten. Durch Variation der Dauer der Sulfoethylierung konnte die Menge der anionischen Ladungen gesteuert und gezielt variiert werden, so dass St{\"a}rkefließmittel mit steigender Ladungsmenge in folgender Reihenfolge synthetisiert wurden: W-3 < W-2 < K-1 < W¬-4 < W¬1 < M-1 Im Ergebnis der chemischen Modifizierung konnten 6 St{\"a}rkefließmittel mit variierten Molekularmassen und anionischen Ladungen erzeugt werden. Es konnte gezeigt werden, dass die Herkunft der St{\"a}rke f{\"u}r die chemische Modifizierung unerheblich ist. Die Fließmittel lagen synthesebedingt als basische, w{\"a}ssrige Suspensionen mit Wirkstoffgehalten im Bereich von 23,5 - 50 \% vor. Beurteilung der Dispergierleistung der synthetisierten St{\"a}rkefließmittel Die Dispergierperformance wurde durch rheologische Experimente mit einem Rotationsviskosimeter erfasst. Dabei wurden der Einfluss auf die Fließkurven und die Viskosit{\"a}tskurven betrachtet. Durch Vergleich der Dispergierleistung mit einem Polykondensat- und einem PCE-Fließmittel konnte eine Einordnung und Bewertung der Fließmittel vorgenommen werden. 3. Die rheologische Experimente haben gezeigt, dass die St{\"a}rkefließmittel eine vergleichbar hohe Dispergierleistung aufweisen, wie das zum Vergleich herangezogen PCE-Fließmittel. Dar{\"u}ber hinaus zeigte sich, dass die Fließwirkung der 6 St{\"a}rkefließmittel gegen{\"u}ber dem Polykondensatfließmittel deutlich h{\"o}her ist. Das aus der Literatur bekannte Einbrechen der Dispergierleistung der Polykondensat-fließmittel bei w/z-Werten < 0,4 konnte best{\"a}tigt werden. 4. Alle 6 St{\"a}rkefließmittel f{\"u}hrten zu einer Verringerung der Fließgrenze und der dynamischen Viskosit{\"a}t des Zementleimes bei einem w/z-Wert von 0,35. 5. Der Vergleich der Dispergierleistung der St{\"a}rkefließmittel untereinander zeigte, dass die anionische Ladungsmenge einen Schl{\"u}sselparameter darstellt. Die St{\"a}rkefließmittel M-1, K-1, W-1 und W-4 mit anionischen Ladungsmengen > 6 C/g zeigten die h{\"o}chste Dispergier¬performance. Die vergleichend herangezogenen klassischen Fließmittel wiesen anionische Ladungsmengen im Bereich von 1,2 C/g (Polycondensat) und 1,6 C/g (PCE) auf. Die Molekularmasse schien f{\"u}r die Dispergierleistung zun{\"a}chst unerheblich zu sein. Aus diesem Grund wurde die Basisweizenst{\"a}rke erneut chemisch modifiziert, indem anionische Ladungen eingef{\"u}hrt wurden, ohne die Molekularmasse jedoch zu verringern. Das St{\"a}rkederivat wies verdickende Eigenschaften im Zementleim auf. Daraus konnte geschlussfolgert werden, dass eine definierte Grenzmolekularmasse (150.000 Da) existiert, die unterschritten werden muss, um Fließmittel aus St{\"a}rke zu erzeugen. Des Weiteren zeigen die Ergebnisse, dass durch die chemische Modifizierung sowohl Fließmittel als auch Verdicker aus St{\"a}rke erzeugt werden k{\"o}nnen. Beurteilung der Beeinflussung der Hydratation und der Porenl{\"o}sung des Portlandzementes Aus der Literatur ist bekannt, dass Fließmittel die Hydratation von Portlandzement maßgeblich beeinflussen k{\"o}nnen. Aus diesem Grund wurden kalorimetrische und konduktometrische Untersuchungen an Zementsuspensionen, die mit den synthetisierten St{\"a}rkefließmitteln versetzt wurden, durchgef{\"u}hrt. Erg{\"a}nzt wurden die Untersuchungen durch Porenl{\"o}sungsanalysen zu verschiedenen Zeitpunkten der Hydratation. 6. Die kalorimetrischen Untersuchungen zur Beeinflussung der Hydratation des Portlandzementes zeigten, dass die dormante Periode durch die Zugabe der St{\"a}rkefließmittel z.T. erheblich verl{\"a}ngert wird. Es konnte gezeigt werden, dass, je h{\"o}her die anionische Ladungsmenge der St{\"a}rkefließmittel ist, desto l{\"a}nger dauert die dormante Periode andauert. Dar{\"u}ber hinaus zeigte sich, dass eine niedrige Molekularmasse der St{\"a}rkefließmittel die Verl{\"a}ngerung der dormanten Periode beg{\"u}nstigt. 7. Durch die konduktometrischen Untersuchungen konnte gezeigt werden, dass alle St{\"a}rkefließmittel die Dauer des freien- und diffusionskontrollierten CSH-Phasenwachstums verlangsamen. Insbesondere die Ausf{\"a}llung des Portlandits, welches mit dem Erstarrungsbeginn korreliert, erfolgt zu deutlich sp{\"a}teren Zeitpunkten. Des Weiteren korrelierten die konduktometrischen Untersuchungen mit der zeitlichen Entwicklung der Calciumkonzentration der Porenl{\"o}sungen. Der Vergleich der St{\"a}rkefließmittel untereinander zeigte, dass die Molekularmasse ein Schl{\"u}sselparameter ist. Das St{\"a}rkefließmittel M-1 mit der geringsten Molekularmasse, welches geringe Mengen kurzkettiger Anhydroglucoseeinheiten aufweist, verz{\"o}gert die Hydratphasenbildung am st{\"a}rksten. Diese Wirkung ist vergleichbar mit der von Zuckern. Dar{\"u}ber hinaus deuteten die Ergebnisse daraufhin, dass die St{\"a}rkefließmittel auf den ersten Hydratationsprodukten adsorbieren, wodurch die Hydratphasenbildung verlangsamt wird. Die kalorimetrischen und konduktometrischen Daten sowie die Ergebnisse der Porenl{\"o}sungsanalytik des Zementes, erforderten eine genauere Betrachtung der Beeinflussung der Hydratation der Klinkerphasen C3A und C3S, durch die St{\"a}rkefließmittel. Demzufolge wurden die Untersuchungen mit den Klinkerphasen C3A und C3S in Analogie zum Portlandzement durchgef{\"u}hrt. Beurteilung der Beeinflussung der Hydratation und der Porenl{\"o}sung des C3A W{\"a}hrend die kalorimetrischen Untersuchungen zur C3A-Hydratation eine Tendenz zur verlangsamten Hydratphasenbildung durch die St{\"a}rkefließmittel aufzeigten, lieferten die konduktometrischen Ergebnisse grundlegende Erkenntnisse zur Beeinflussung der C3A-Hydratation. Das Stadium I der C3A-Hydratation ist durch einen Abfall der elektrischen Leitf{\"a}higkeit gepr{\"a}gt. Dies korreliert mit dem Absinken der Calciumionenkonzentration und dem Anstieg der Aluminiumionenkonzentration in der Porenl{\"o}sung der C3A-Suspensionen. Im Anschluss an das Stadium I bildet sich ein Plateau in den elektrischen Leitf{\"a}higkeitskurven aus. 8. Es konnte gezeigt werden, dass die St{\"a}rkefließmittel das Stadium I der C3A-Hydratation, d.h. die Aufl{\"o}sung und Bildung erster Calciumaluminathydrate verlangsamen. Insbesondere die St{\"a}rkefließmittel mit h{\"o}herer Molekularmasse erh{\"o}hten die Dauer des Stadium I. Das Stadium II wird durch die St{\"a}rkefließmittel in folgender Reihenfolge am st{\"a}rksten verl{\"a}ngert: M-1 > W-3 > K-1 > W-2 ≥ W-4 und verdeutlicht, dass keine Abh{\"a}ngigkeit von der anionischen Ladungsmenge identifiziert werden konnte. Die Ergebnisse zeigten, dass speziell die kurzkettige St{\"a}rke M-1, das Stadium II l{\"a}nger aufrechterhalten. 9. Das Stadium III und IV der C3A-Hydratation wird insbesondere durch die St{\"a}rkefließmittel mit h{\"o}herer Molekularmasse verl{\"a}ngert. Die Ergebnisse der Porenl{\"o}sungsanalytik korrelieren mit den Ergebnissen der elektrischen Leitf{\"a}higkeit. Speziell die zeitlichen Verl{\"a}ufe der Calciumionenkonzentration bildeten die Verl{\"a}ufe der Konduktivit{\"a}tskurven der C3A-Hydratation mit großer {\"U}bereinstimmung ab. Beurteilung der Beeinflussung der Hydratation und der Porenl{\"o}sung des C3S Die Ergebnisse der kalorimetrischen Untersuchungen zur Beeinflussung der C3S-Hydratation durch die St{\"a}rkefließmittel zeigen, dass diese maßgeblich verlangsamt wird. Das Maximum des Haupthydratationspeaks wird zu sp{\"a}teren Zeiten verschoben und auch die H{\"o}he des Maximums wird deutlich verringert. Durch die konduktometrischen Experimente wurde aufgekl{\"a}rt, welche Stadien der C3S-Hydrataion beeinflusst wurden. 10. Es konnte gezeigt werden, dass sowohl die Menge der eingebrachten anionischen Ladungen als auch das Vorhandensein sehr kleiner St{\"a}rkefließmittelmolek{\"u}le (Zucker), Schl{\"u}sselparameter der verz{\"o}gerten Hydratationskinetik des C3S sind. Der grundlegende Mechanismus der Hydratationsverz{\"o}gerung beruht auf einer Kombination aus verminderter CSH-Keimbildung und Adsorptionsprozessen auf den ersten gebildeten CSH-Phasen der C3S-Partikel. Beurteilung des Adsorptionsverhaltens am Zement, C3A und C3S Die Bestimmung des Adsorptionsverhaltens der St{\"a}rkefließmittel erfolgte mit der Phenol-Schwefels{\"a}ure-Methode an Zement,- C3A- und C3S-Suspensionen. Durch den Vergleich der Adsorptionsraten und Adsorptionsmengen in Abh{\"a}ngigkeit von den molekularen Parametern der St{\"a}rkefließmittel wurde ein Wechselwirkungsmodell identifiziert. 11. Die Ursache f{\"u}r die hohe Dispergierleistung der St{\"a}rkefließmittel liegt in Adsorptionsprozessen an den ersten gebildeten Hydratphasen des Zementes begr{\"u}ndet. Die Molekularmasse der St{\"a}rkefließmittel ist ein Schl{\"u}sselparameter der entscheidend f{\"u}r den Mechanismus der Adsorption ist. W{\"a}hrend anionische, langkettige St{\"a}rken an mehreren Zementpartikeln gleichzeitig adsorbieren und f{\"u}r eine Vernetzung der Zementpartikel untereinander sorgen (Verdickerwirkung), adsorbieren kurzkettige anionische St{\"a}rken lediglich an den ersten gebildeten Hydratphasen der einzelnen Zementpartikel und f{\"u}hren zu elektrostatischer Abstoßung (Fließmittelwirkung). 12. Es konnte gezeigt werden, dass die St{\"a}rkefließmittel mit geringerem Molekulargewicht bei h{\"o}heren Konzentrationen an den Hydratphasen des Zementes adsorbieren. Die St{\"a}rkefließmittel mit h{\"o}herer Molekularmasse erreichen bei einer Zugabemenge von 0,7 \% ein Plateau. Daraus wird geschlussfolgert, dass die gr{\"o}ßeren Fließmittelmolek{\"u}le einen erh{\"o}hten Platzbedarf erfordern und zur Abs{\"a}ttigung der hydratisierenden Oberfl{\"a}chen bei geringeren Zugabemengen f{\"u}hren. Dar{\"u}ber hinaus konnte gezeigt werden, dass die St{\"a}rkefließmittel mit h{\"o}herer anionischer Ladungsmenge zu h{\"o}heren Adsorptionsmengen auf den Zement-, C3A- und C3S-Partikeln f{\"u}hren. 13. Die Adsorptionsprozesse finden an den ersten gebildeten Hydratphasen der C3A-Partikel statt, wodurch sowohl die Aufl{\"o}sung des C3A als auch die Bildung der Calciumhydroaluminate verlangsamt wird. Dar{\"u}ber hinaus wurde festgestellt, dass die Verlangsamung des freien- und diffusionskontrollierten Hydratphasenwachstums des C3S, durch die Adsorption der St{\"a}rkefließmittel auf den ersten gebildeten CSH-Phasen hervorgerufen wird. Des Weiteren wurde festgestellt, dass sehr kleine zucker{\"a}hnliche Molek{\"u}le in der kurzkettigen Maniokst{\"a}rke in der Lage sind, die Bildung der ersten CSH-Keime zu unterdr{\"u}cken. Dadurch kann die langanhaltende Plateauphase der elektrischen Leitf{\"a}higkeit der C3S-Hydratation erkl{\"a}rt werden. Beurteilung der Porenstruktur- und Festigkeitsausbildung Die Beurteilung der Qualit{\"a}t der Mikrostruktur erfolgte durch die Bestimmung der Rohdichte und der Porenradienverteilung mit Hilfe der Quecksilberhochdruckporosimetrie. Durch das Versetzen der Zementleime mit den St{\"a}rkefließmitteln konnten bei gleichbleibender Verarbeitbarkeit Zementsteinprobek{\"o}rper mit einem um 17,5 \% geringeren w/z-Wert von 0,35 hergestellt werden. Die Absenkung des w/z-Wertes f{\"u}hrt zu einem Anstieg der Rohdichte des Zementsteins. 14. Durch die Zugabe der St{\"a}rkefließmittel und den verringerten w/z-Wert wird die Porenstruktur der Zementsteinproben im Vergleich zum Referenzzementstein verfeinert, da die Gesamtporosit{\"a}t sinkt. Insbesondere der Kapillarporenanteil wird verringert und der Gelporenanteil erh{\"o}ht. Im Unterschied zu den PCE-Fließmitteln f{\"u}hrt die Zugabe der St{\"a}rkefließmittel zu keinem erh{\"o}hten Eintrag von Luftporen. Dies wiederum hat zur Folge, dass bei der Verwendung der St{\"a}rkefließmittel auf Entsch{\"a}umer verzichtet werden kann. 15. Entsprechend der dichteren Zementsteinmatrix wurden f{\"u}r die Zementsteine mit den St{\"a}rkefließmitteln nach 7 d und 28 d, erh{\"o}hte Biegezug- und Druckfestigkeiten ermittelt. Insbesondere die 28 d Druckfestigkeit wurde durch den verringerten w/z-Wert um die Faktoren 3,5 - 6,6 erh{\"o}ht.},
  subject      = {Bauchemie},
  language  = {de}
}
@article{SoebkeLueck,
  author    = {S{\"o}bke, Heinrich and L{\"u}ck, Andrea},
  title     = {Framing Algorithm-Driven Development of Sets of Objectives Using Elementary Interactions},
  series = {Applied System Innovation},
  volume    = {2022},
  journal   = {Applied System Innovation},
  number    = {Volume 5, issue 49, article 49},
  publisher = {MDPI},
  address   = {Basel},
  doi       = {10.3390/asi503004},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220524-46469},
  pages     = {1 -- 21},
  abstract  = {Multi-criteria decision analysis (MCDA) is an established methodology to support the decision-making of multi-objective problems. For conducting an MCDA, in most cases, a set of objectives (SOO) is required, which consists of a hierarchical structure comprised of objectives, criteria, and indicators. The development of an SOO is usually based on moderated development processes requiring high organizational and cognitive effort from all stakeholders involved. This article proposes elementary interactions as a key paradigm of an algorithm-driven development process for an SOO that requires little moderation efforts. Elementary interactions are self-contained information requests that may be answered with little cognitive effort. The pairwise comparison of elements in the well-known analytical hierarchical process (AHP) is an example of an elementary interaction. Each elementary interaction in the development process presented contributes to the stepwise development of an SOO. Based on the hypothesis that an SOO may be developed exclusively using elementary interactions (EIs), a concept for a multi-user platform is proposed. Essential components of the platform are a Model Aggregator, an Elementary Interaction Stream Generator, a Participant Manager, and a Discussion Forum. While the latter component serves the professional exchange of the participants, the first three components are intended to be automatable by algorithms. The platform concept proposed has been evaluated partly in an explorative validation study demonstrating the general functionality of the algorithms outlined. In summary, the platform concept suggested demonstrates the potential to ease SOO development processes as the platform concept does not restrict the application domain; it is intended to work with little administration moderation efforts, and it supports the further development of an existing SOO in the event of changes in external conditions. The algorithm-driven development of SOOs proposed in this article may ease the development of MCDA applications and, thus, may have a positive effect on the spread of MCDA applications.},
  subject      = {Operations Research},
  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}
}
@phdthesis{Schnoes,
  author    = {Schn{\"o}s, Christian Emanuel},
  title     = {Handlungsressourcen von zivilgesellschaftlichen Akteuren in Planungsprozessen},
  doi       = {10.25643/bauhaus-universitaet.4634},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220505-46346},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {273},
  abstract  = {Diese Dissertation untersucht Handlungsressourcen von zivilgesellschaftlichen Akteuren in Planungsprozessen um innerst{\"a}dtische Planungsverfahren. Den theoretischen Rahmen bilden die Kapitalarten von Pierre Bourdieu, die zusammen mit dem Matrixraum von Dieter L{\"a}pple zu einem neuen Feldbegriff des ‚Raumfeldes' zusammengef{\"u}hrt und operationalisiert wurden. Es handelt sich um eine qualitative Arbeit, die zwischen Stadtsoziologie und Urbanistik zu verorten ist. Als Fallbeispiele wurde die Erweiterung des Berliner Mauerparks sowie das Baugebiet „So! Berlin" in Berlin gew{\"a}hlt.},
  subject      = {Zivilgesellschaft},
  language  = {de}
}
@phdthesis{Torres,
  author    = {Torres, C{\´e}sar},
  title     = {El paisaje de la Cuenca Lechera Central Argentina: la huella de la producci{\´o}n sobre el territorio},
  doi       = {10.25643/bauhaus-universitaet.4683},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220803-46835},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {427},
  abstract  = {In recent times, the study of landscape heritage acquires value by virtue of becoming an alternative to rethink regional development, especially from the point of view of territorial planning. In this sense, the Central Argentine Dairy Basin (CADB) is presented as a space where the traces of different human projects have accumulated over centuries of occupation, which can be read as heritage. The impact of dairy farming and other productive activities has shaped the configuration of its landscape. The main hypothesis assumed that a cultural landscape would have been formed in the CADB, whose configuration would have depended to a great extent on the history of productive activities and their deployment over the territory, and this same history would hide the keys to its alternative. The thesis approached the object of study from descriptive and cartographic methods that placed the narration of the history of territory and the resources of the landscape as a discursive axis. A series of intentional readings of the territory and its constituent parts pondered the layers of data that have accumulated on it in the form of landscape traces, with the help of an approach from complementary dimensions (natural, sociocultural, productive, planning). Furthermore, the intersection of historical sources was used in order to allow the construction of the territorial story and the detection of the origin of the landscape components. A meticulous cartographic work also helped to spatialise the set of phenomena and elements studied, and was reflected in a multiscalar scanning.},
  subject      = {Landschaft},
  language  = {es}
}
@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}
}
@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}
}
@techreport{Raab,
  type      = {Working Paper},
  author    = {Raab, Susanna},
  title     = {Ern{\"a}hrungsgerechtigkeit im deutschen Wohlfahrtsregime. Teilhabe und Ausschl{\"u}sse},
  doi       = {10.25643/bauhaus-universitaet.6395},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230530-63952},
  pages     = {25},
  abstract  = {Ern{\"a}hrung bestimmt unser t{\"a}gliches Leben. Sie erf{\"u}llt in erster Linie die physiologische Notwendigkeit unseren K{\"o}rper am Leben zu halten und ist gleichzeitig Alltagspraxis, durch welche gesamtgesellschaftliche Strukturen sichtbar werden. Innerhalb dieser Alltagspraxen erf{\"u}llt Ern{\"a}hrung vor allem eine wichtige Funktion in der Herstellung gesellschaftlicher Teilhabe oder kann strukturelle Ausschl{\"u}sse und soziale Ungleichheit bedingen. Dem Wohlfahrtsregime kommt somit eine wichtige Aufgabe in der Grundversorgung der Bev{\"o}lkerung zu und muss innerhalb der Daseinsvorsorge auf Ausschl{\"u}sse von ern{\"a}hrungsbezogener Teilhabe einzelner Bev{\"o}lkerungsschichten eingehen und sozialer Ungleichheit entgegenwirken. In diesem Working Paper soll der Fragestellung nachgegangen werden, inwiefern Teilhabe bzw. strukturelle Ausschl{\"u}sse von Ern{\"a}hrung innerhalb des bundesdeutschen Wohlfahrtsregimes hergestellt werden und durch welche politischen Praktiken und Forderungen aus der Zivilgesellschaft bzw. sozialen Bewegungen ern{\"a}hrungsvermittelte Teilhabe (wieder) hergestellt wird.},
  subject      = {Ern{\"a}hrung},
  language  = {de}
}
@masterthesis{Hoinkis,
  type      = {Bachelor Thesis},
  author    = {Hoinkis, Jule Hannah},
  title     = {Hitze in der Stadt Jena},
  doi       = {10.25643/bauhaus-universitaet.4632},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220414-46323},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  abstract  = {Die vorliegende Arbeit befasst sich mit den spezifischen Faktoren und Wechselwirkungen des st{\"a}dtischen Klimas und Strategien zur Pr{\"a}vention und Kompensation lokaler Klimaver{\"a}nderungen. Problematische Merkmale des Stadtklimas werden sich infolge des Klimawandels st{\"a}rker auspr{\"a}gen. Insbesondere die Hitzebelastung wird zunehmen und die Lebensbedingungen in der Stadt negativ beeinflussen. Infolge h{\"o}herer Temperaturen in St{\"a}dten und einer h{\"o}heren Temperaturdifferenz zum Umland ver{\"a}ndern sich Windstr{\"o}me und die Wasserbilanz. Es sind Strategien notwendig, um den Schadstoffausstoß, die Fl{\"a}cheninanspruchnahme, die Abfallproduktion und den Wasser-, Energie- und Ressourcenverbrauch zu verringern, um sowohl langfristig den Klimawandel als auch dessen bereits unvermeidbaren Auswirkungen auf St{\"a}dte zu begrenzen. Beispielhaft untersucht die Arbeit das Stadtklima, dessen zuk{\"u}nftige Ver{\"a}nderungen infolge des Klimawandels, bauliche Maßnahmen und Anpassungsstrategien der Stadt Jena. Jena ist die zweitgr{\"o}ßte Stadt im Bundesland Th{\"u}ringen und geh{\"o}rt heute zu den w{\"a}rmsten und trockensten Großst{\"a}dten Deutschlands. Die Ergebnisse der Arbeit werden anschließend anhand eines st{\"a}dtebaulichen Konzepts und Entwurfs angewendet. Das Bachstraßenareal liegt in der Innenstadt, dem am st{\"a}rksten von Hitze betroffenen Stadtteil. Als ehemaliger Hauptstandort des Jenaer Universit{\"a}tsklinikums, soll es zu einem nachhaltigen Wissenschaftscampus der Lebenswissenschaften umgebaut werden, wobei ein Großteil der denkmalgesch{\"u}tzten, ehemaligen Klinikgeb{\"a}ude erhalten bleibt. Der Fokus liegt dabei auf der Umsetzung der zuvor formulierten, nachhaltigen Strategien zur Verbesserung des lokalen Stadtklimas und einer Abschw{\"a}chung der Auswirkungen des Klimawandels auf den besonders stark betroffenen Innenstadtbereich Jenas.},
  subject      = {Hitze},
  language  = {de}
}
@misc{Vollmer,
  author    = {Vollmer, Lisa},
  title     = {Aber das sind doch die Guten - oder? Wohnungsgenossenschaften in Hamburg. Rezension zu Jo-scha Metzger (2021): Genossenschaften und die Wohnungsfrage. Konflikte im Feld der Sozialen Wohnungswirtschaft. M{\"u}nster: Westf{\"a}lisches Dampfboot},
  series = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  volume    = {2022},
  journal   = {sub\urban. zeitschrift f{\"u}r kritische stadtforschung},
  number    = {Band 10, Nr. 1},
  publisher = {sub\urban e. V.},
  address   = {Berlin},
  doi       = {10.36900/suburban.v10i1.795},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220713-46691},
  pages     = {261 -- 267},
  abstract  = {Warum werden in aktuellen Diskussionen Wohnungsgenossenschaften immer wieder als zentrale Akteure einer gemeinwohlorientierten Wohnraumversorgung benannt - obwohl sie kaum zur Schaffung neuen bezahlbaren Wohnraums beitragen? Warum wehrt sich die Mehrzahl der Wohnungsgenossenschaften mit H{\"a}nden und F{\"u}ßen gegen die Wiedereinf{\"u}hrung eines Gesetzes zur Wohnungsgemeinn{\"u}tzigkeit, obwohl es doch gerade dieses Gesetz war, dass sie im 20. Jahrhundert zu im internationalen Vergleich großen Unternehmen wachsen ließ? Sind Wohnungsgenossenschaften nun klientilistische, wenig demokratische und nur halb dekommodifizierte Marktteilnehmer oder wichtiger Teil der Wohnungsversorgung der unteren Mittelschicht? Wer Antworten auf diese und andere Fragen sucht und Differenziertheit in ihrer Beantwortung aush{\"a}lt, lese Joscha Metzers Dissertation „Genossenschaften und die Wohnungsfrage.},
  subject      = {Gentrifizierung},
  language  = {de}
}
@article{MoscosoKraus,
  author    = {Moscoso, Caridad and Kraus, Matthias},
  title     = {On the Verification of Beams Subjected to Lateral Torsional Buckling by Simplified Plastic Structural Analysis},
  series = {ce/papers},
  volume    = {2022},
  journal   = {ce/papers},
  number    = {Volume 5, Issue 4},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  doi       = {10.1002/cepa.1835},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230124-48782},
  pages     = {914 -- 923},
  abstract  = {Plastic structural analysis may be applied without any difficulty and with little effort for structural member verifications with regard to lateral torsional buckling of doubly symmetric rolled I sections. Suchlike analyses can be performed based on the plastic zone theory, specifically using finite beam elements with seven degrees of freedom and 2nd order theory considering material nonlinearity. The existing Eurocode enables these approaches and the coming-up generation will provide corresponding regulations in EN 1993-1-14. The investigations allow the determination of computationally accurate limit loads, which are determined in the present paper for selected structural systems with different sets of parameters, such as length, steel grade and cross section types. The results are compared to approximations gained by more sophisticated FEM analyses (commercial software Ansys Workbench applying solid elements) for reasons of verification/validation. In this course, differences in the results of the numerical models are addressed and discussed. In addition, results are compared to resistances obtained by common design regulations based on reduction factors χlt including regulations of EN 1993-1-1 (including German National Annex) as well as prEN 1993-1-1: 2020-08 (proposed new Eurocode generation). Concluding, correlations of results and their advantages as well as disadvantages are discussed.},
  subject      = {Stahl},
  language  = {en}
}
@article{AicherBoermelLondongetal.,
  author    = {Aicher, Andreas and B{\"o}rmel, Melanie and Londong, J{\"o}rg and Beier, Silvio},
  title     = {Vertical green system for gray water treatment: Analysis of the VertiKKA-module in a field test},
  series = {Frontiers in Environmental Science},
  volume    = {2022},
  journal   = {Frontiers in Environmental Science},
  number    = {Volume 10 (2022), article 976005},
  publisher = {Frontiers Media},
  address   = {Lausanne},
  doi       = {10.3389/fenvs.2022.976005},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230124-48840},
  pages     = {1 -- 7},
  abstract  = {This work presents a modular Vertical Green System (VGS) for gray water treatment, developed at the Bauhaus-Universit{\"a}t Weimar. The concept was transformed into a field study with four modules built and tested with synthetic gray water. Each module set contains a small and larger module with the same treatment substrate and was fed hourly. A combination of lightweight structural material and biochar of agricultural residues and wood chips was used as the treatment substrate. In this article, we present the first 18 weeks of operation. Regarding the treatment efficiency, the parameters chemical oxygen demand (COD), total phosphorous (TP), ortho-phosphate (ortho-P), total bound nitrogen (TNb), ammonium nitrogen (NH4-N), and nitrate nitrogen (NO3-N) were analyzed and are presented in this work. The results of the modules with agricultural residues are promising. Up to 92\% COD reduction is stated in the data. The phosphate and nitrogen fractions are reduced significantly in these modules. By contrast, the modules with wood chips reduce only 67\% of the incoming COD and respectively less regarding phosphates and the nitrogen fraction.},
  subject      = {Grauwasser},
  language  = {en}
}
@book{BreuerBartFreieretal.,
  author    = {Breuer, Johannes and Bart, Marlene and Freier, Alex Leo and R{\"u}nker, Maximilian and Jakubek, Kristin and Rubiano, Juan and Groos, Cora and Š{\´a}lek, Martin and Fritz, Henrieke and Kokkinidou, Eirini and Richter, Fabian and Liu, Ani and Held, Tobias and Moses, Gabriel S and Blasius, Clara Maria and Sp{\aa}ng, Fanny and Bencicova, Evelyn and R{\"u}ckeis, Julia and Thurow, Katharina and Maas, Frederike and Farf{\´a}n, Vanessa and Tikka, Emilia and Lee, Sang and Holzheu, Stefanie},
  title     = {Atlas der Datenk{\"o}rper. K{\"o}rperbilder in Kunst, Design und Wissenschaft im Zeitalter digitaler Medien},
  volume    = {2022},
  editor    = {Breuer, Johannes and Bart, Marlene and Freier, Alex Leo},
  publisher = {transcript Verlag},
  address   = {Bielefeld},
  issn      = {2750-7483},
  doi       = {10.1515/9783839461785},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220411-46248},
  publisher      = {Bauhaus-Universit{\"a}t Weimar},
  pages     = {172},
  abstract  = {Digitale Technologien und soziale Medien ver{\"a}ndern die Selbst- und K{\"o}rperwahrnehmung und verzerren, verst{\"a}rken oder produzieren dabei spezifische K{\"o}rperbilder. Die Beitr{\"a}ger*innen kartographieren diese Ph{\"a}nomene, fragen nach ihrer medialen Existenzweise sowie nach den M{\"o}glichkeiten ihrer Kritik. Dabei begegnen sie ihrer Neuartigkeit mit einer transdisziplin{\"a}ren Herangehensweise. Aus sowohl der Perspektive k{\"u}nstlerischer und gestalterischer Forschung als auch der Kunst-, Kultur- und Medienwissenschaft sowie der Psychologie und Neurowissenschaft wird die Landschaft rezenter K{\"o}rperbilder und Techniken einer digitalen K{\"o}rperlichkeit untersucht.},
  subject      = {K{\"o}rperbild},
  language  = {de}
}