Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Abteilungen OPUS4-6365 Wissenschaftlicher Artikel Rabczuk, Timon; Zhuang, Xiaoying; Oterkus, Erkan Editorial: Computational modeling based on nonlocal theory Nonlocal theories concern the interaction of objects, which are separated in space. Classical examples are Coulomb's law or Newton's law of universal gravitation. They had signficiant impact in physics and engineering. One classical application in mechanics is the failure of quasi-brittle materials. While local models lead to an ill-posed boundary value problem and associated mesh dependent results, nonlocal models guarantee the well-posedness and are furthermore relatively easy to implement into commercial computational software. London Springer 1 Engineering with Computers 2023 Volume 39, issue 3 urn:nbn:de:gbv:wim2-20230517-63658 https://doi.org/10.1007/s00366-022-01775-7 Professur Modellierung und Simulation - Mechanik OPUS4-6374 Wissenschaftlicher Artikel Wiegand, Torben; Osburg, Andrea Synthesis, Curing and Thermal Behavior of Amine Hardeners from Potentially Renewable Sources Research into bio-based epoxy resins has intensified in recent decades. Here, it is of great importance to use raw materials whose use does not compete with food production. In addition, the performance of the newly developed materials should be comparable to that of conventional products. Possible starting materials are lignin degradation products, such as vanillin and syringaldehyde, for which new synthesis routes to the desired products must be found and their properties determined. In this article, the first synthesis of two amine hardeners, starting with vanillin and syringaldehyde, using the Smiles rearrangement reaction is reported. The amine hardeners were mixed with bisphenol A diglycidyl ether, and the curing was compared to isophorone diamine, 4-4′-diaminodiphenyl sulfone, and 4-Aminonbenzylamine by means of differential scanning calorimetry. It was found that the two amines prepared are cold-curing. As TG-MS studies showed, the thermal stability of at least one of the polymers prepared with the potentially bio-based amines is comparable to that of the polymer prepared with isophorone diamine, and similar degradation products are formed during pyrolysis. Basel MDPI 12 Polymers 2023 volume 15, issue 4, article 990 1 12 urn:nbn:de:gbv:wim2-20230524-63745 10.3390/polym15040990 Professur Bauchemie und Polymere Werkstoffe OPUS4-6480 Wissenschaftlicher Artikel Partschefeld, Stephan; Tutal, Adrian; Halmanseder, Thomas; Schneider, Jens; Osburg, Andrea Investigations on Stability of Polycarboxylate Superplasticizers in Alkaline Activators for Geopolymer Binders Calcined clays are interesting starting materials to be used as SCMs (supplementary cementitious materials) in cements or to be converted to geopolymers by activation with a high alkaline activator. The adjustment of the properties in the fresh state, especially regarding the consistency of these binders, is almost exclusively achieved by the addition of water, since commercially available superplasticizers seem to be ineffective in low-calcium geopolymer systems. The aim of this study was a systematic investigation of various PCE (polycarboxylate ester/ether) superplasticizers (methacrylate ester PCE: MPEG, isoprenol ether PCE: IPEG, methallyl ether PCE: HPEG) with respect to their stability in different alkaline activators (NaOH, KOH, sodium and potassium silicate solutions). The effectiveness of superplasticizers (SPs) in low-calcium geopolymer binders was verified by rheological tests. Size exclusion chromatography was used to investigate if structural degradation of the superplasticizers occurs. The investigated PCE superplasticizers showed a thickening effect in the low-calcium geopolymer system. Depending on the alkalinity of the activator solution, a degradation process was detected for all the PCEs investigated. The side chains of the PCEs are cleaved off the backbone by basic ester and ether hydrolysis. The highest degree of degradation was found in sodium and potassium silicate solutions. In alkaline hydroxide solutions, the degradation process increases with increasing alkalinity. Basel MDPI 14 Materials 2023 Volume 16, issue 15, article 5369 1 14 urn:nbn:de:gbv:wim2-20231026-64809 10.3390/ma16155369 Professur Bauchemie und Polymere Werkstoffe OPUS4-4926 Wissenschaftlicher Artikel Alsaad, Hayder; Schälte, Gereon; Schneeweiß, Mario; Becher, Lia; Pollack, Moritz; Gena, Amayu Wakoya; Schweiker, Marcel; Hartmann, Maria; Voelker, Conrad; Rossaint, Rolf; Irrgang, Matthias The Spread of Exhaled Air and Aerosols during Physical Exercise Physical exercise demonstrates a special case of aerosol emission due to its associated elevated breathing rate. This can lead to a faster spread of airborne viruses and respiratory diseases. Therefore, this study investigates cross-infection risk during training. Twelve human subjects exercised on a cycle ergometer under three mask scenarios: no mask, surgical mask, and FFP2 mask. The emitted aerosols were measured in a grey room with a measurement setup equipped with an optical particle sensor. The spread of expired air was qualitatively and quantitatively assessed using schlieren imaging. Moreover, user satisfaction surveys were conducted to evaluate the comfort of wearing face masks during training. The results indicated that both surgical and FFP2 masks significantly reduced particles emission with a reduction efficiency of 87.1% and 91.3% of all particle sizes, respectively. However, compared to surgical masks, FFP2 masks provided a nearly tenfold greater reduction of the particle size range with long residence time in the air (0.3-0.5 μm). Furthermore, the investigated masks reduced exhalation spreading distances to less than 0.15 m and 0.1 m in the case of the surgical mask and FFP2 mask, respectively. User satisfaction solely differed with respect to perceived dyspnea between no mask and FFP2 mask conditions. MDPI Basel 20 Journal of Clinical Medicine 2023 Volume 12, issue 4, article 1300 urn:nbn:de:gbv:wim2-20230208-49262 10.3390/jcm12041300 Professur Bauphysik OPUS4-6498 Wissenschaftlicher Artikel Brokow-Loga, Anton; Krüger, Timmo Potentials of Climate Emergency Declarations for degrowth transformations. The ambivalent stance of German municipalities in conflicts over a post-fossil future This paper addresses the scope for action by municipalities in a climate emergency and places it in the framework of ecomodern (urban) policy. We analyse the way in which two German 'climate emergency municipalities' translate conflicts of post-fossil transformation into concrete political and planning strategies. Although more than 2,200 authorities around the world have already declared a climate emergency, research on the impact of these resolutions on the political orientation of municipalities is very limited. Our research focus is on the (potentially agonistic) treatment of conflicts in planning. We argue that in times of a socio-ecological crisis, success in conflict resolution cannot refer to appeasement and depoliticisation. Instead, we propose a framework of five criteria, based on critical theory on ecomodern strategies, planning processes and degrowth. Thus, this practice-related and explorative paper connects empirical insights from the German cities of Constance and Berlin with an innovative normative framework. The findings tell a complex story of an, at least partial, admission of the failure of previous climate mitigation strategies, a lack of social institutions of limits, an instrumental relation to nature and a disregard for social injustices. The paper discusses how municipalities, in the context of ongoing tensions over the post-fossil transformation in Germany, on the one hand hold on to business-as-usual approaches, but on the other hand also set political impulses for change. München oekom Verlag 523-537 Raumforschung und Raumordnung 2023 Vol. 81, No. 5 523 537 urn:nbn:de:gbv:wim2-20231204-64984 10.14512/rur.1666 Professur Sozialwissenschaftliche Stadtforschung OPUS4-6483 Wissenschaftlicher Artikel Suhr, Maike Diversität und (Anti-)Diskriminierung im Kontext journalistischer Neugründungen: Eine Forschungsagenda Obgleich redaktionelle Diversität regelmäßig als eine der Kernherausforderungen für den Journalismus gehandelt wird, tun sich journalistische Organisationen immer noch schwer damit, gleichberechtigte Zugangs-und Entfaltungschancen für Frauen, People of Color, Menschen aus Einwandererfamilien oder auf anderen Ebenen diskriminierungsbetroffene Journalist*innen zu schaffen. Stattdessen zeigt die gender-und diversitätsbezogene Redaktionsforschung, dass Redaktionen nach wie vor in ihren Strukturen, Praktiken und in ihrer Kultur gesellschaftliche Machtverhältnisse widerspiegeln und (re-)produzieren. Doch im Zuge des „Entrepreneurial Journalism" entstehen heute vielerorts neue Organisationen. Diese journalistischen Neugründungen zeichnen sich unter anderem durch kleinere, offenere und flexiblere Organisationsstrukturen aus. Ihr veränderter organisationaler Charakter wurde jedoch bislang noch nicht tiefergehend im Hinblick auf seine Potenziale und möglichen Risiken für Diversität und (Anti-)Diskriminierung untersucht. Der Beitrag hat somit zum Ziel, journalistische Neugründungen als neuen Gegenstand auf der Agenda der organisations-und diskriminierungsbezogenen Journalismusforschung zu positionieren. Dazu werden ausgewählte Studien zum „Entrepreneurial Journalism" im Hinblick auf Diversität und (Anti-)Diskriminierung aufgearbeitet und bestehende Desiderata identifiziert. Auf dieser Grundlage wird schließlich eine programmatische Forschungsagenda entwickelt, um empirische Folgeforschung zum Thema anzustoßen. 19 Global Media Journal German Edition 2023 Volume 13, No 1 1 19 urn:nbn:de:gbv:wim2-20231027-64836 10.22032/dbt.57907 Junior-Professur Organisation und vernetzte Medien OPUS4-4919 Wissenschaftlicher Artikel Bapir, Baban; Abrahamczyk, Lars; Wichtmann, Torsten; Prada-Sarmiento, Luis Felipe Ozturk, Baki Soil-structure interaction: A state-of-the-art review of modeling techniques and studies on seismic response of building structures The present article aims to provide an overview of the consequences of dynamic soil-structure interaction (SSI) on building structures and the available modelling techniques to resolve SSI problems. The role of SSI has been traditionally considered beneficial to the response of structures. However, contemporary studies and evidence from past earthquakes showed detrimental effects of SSI in certain conditions. An overview of the related investigations and findings is presented and discussed in this article. Additionally, the main approaches to evaluate seismic soil-structure interaction problems with the commonly used modelling techniques and computational methods are highlighted. The strength, limitations, and application cases of each model are also discussed and compared. Moreover, the role of SSI in various design codes and global guidelines is summarized. Finally, the advancements and recent findings on the SSI effects on the seismic response of buildings with different structural systems and foundation types are presented. In addition, with the aim of helping new researchers to improve previous findings, the research gaps and future research tendencies in the SSI field are pointed out. Lausanne Frontiers Media 17 Frontiers in Built Environment 2023 Volume 9 1 17 urn:nbn:de:gbv:wim2-20230206-49190 10.3389/fbuil.2023.1120351 Junior-Professur Komplexe Tragwerke OPUS4-4947 Wissenschaftlicher Artikel Wellbrock, Christian-Mathias; Lobigs, Frank; Erbrich, Lukas; Buschow, Christopher Coopetition is King. Ökonomische Potentiale und medienpolitische Implikationen kooperativer Journalismusplattformen Die vorliegende Studie geht der Fragestellung nach, wie sich eine anbieterübergreifende, abonnementbasierte Plattform für den digitalen Journalismus, also eine Art Spotify im Journalismus, auf die Umsätze der Anbieter journalistischer Inhalte und die Abonnements im Digitaljournalismus in Deutschland auswirken würde. Auf Basis drei sich ergänzender Schätzmethoden für Zahlungsbereitschaft, die in zwei Repräsentativbefragungen der deutschen Online-Bevölkerung mit insgesamt 8.000 Teilnehmenden angewandt wurden, gelangt das Whitepaper zu den folgenden Schlüsselbefunden. Düsseldorf Landesanstalt für Medien NRW 48 2023 1 48 urn:nbn:de:gbv:wim2-20230320-49473 10.25643/bauhaus-universitaet.4947 Junior-Professur Organisation und vernetzte Medien OPUS4-4948 Wissenschaftlicher Artikel Londong, Jörg; Barth, Marcus; Söbke, Heinrich Reducing antimicrobial resistances by source separation of domestic wastewater Antimicrobial resistances (AMR) are ranked among the top ten threats to public health and societal development worldwide. Toilet wastewater contained in domestic wastewater is a significant source of AMR entering the aquatic environment. The current commonly implemented combined sewer systems at times cause overflows during rain events, resulting in the discharge of untreated wastewater into the aquatic environment, thus promoting AMR. In this short research article, we describe an approach to transform combined sewer systems into source separation-modified combined sewer systems that separately treat toilet wastewater. We employ simulations for demonstrating that source separation-modified combined sewer systems reduce the emission of AMR- causing substances by up to 11.5 logarithm levels. Thus, source separation- modified combined sewer systems are amongst the most effective means of combating AMR. KEYWORDS Lausanne Frontiers Media 5 Frontiers in Environmental Health 2023 Volume 2, article 1151898 1 5 urn:nbn:de:gbv:wim2-20230403-49483 10.3389/fenvh.2023.1151898 Bauhaus-Institut für zukunftsweisende Infrastruktursysteme (b.is) OPUS4-4937 Wissenschaftlicher Artikel Ansari, Meisam; Zacharias, Christin; Könke, Carsten Metaconcrete: An Experimental Study on the Impact of the Core-Coating Inclusions on Mechanical Vibration Resonance vibration of structures is an unpleasant incident that can be conventionally avoided by using a Tuned Mass Damper (TMD). The scope of this paper contains the utilization of engineered inclusions in concrete as damping aggregates to suppress resonance vibration similar to a TMD. The inclusions are composed of a stainless-steel core with a spherical shape coated with silicone. This configuration has been the subject of several studies and it is best known as Metaconcrete. This paper presents the procedure of a free vibration test conducted with two small-scaled concrete beams. The beams exhibited a higher damping ratio after the core-coating element was secured to them. Subsequently, two meso-models of small-scaled beams were created: one representing conventional concrete and the other representing concrete with the core-coating inclusions. The frequency response curves of the models were obtained. The change in the response peak verified the ability of the inclusions to suppress the resonance vibration. This study concludes that the core-coating inclusions can be utilized in concrete as damping aggregates. Basel MDPI 18 materials 2023 Volume 16, Issue 5, article 1836 1 18 urn:nbn:de:gbv:wim2-20230315-49370 10.3390/ma16051836 Professur Baustatik und Bauteilfestigkeit OPUS4-6384 Wissenschaftlicher Artikel Sander, Hendrik; Weißermel, Sören Urban Heat Transition in Berlin: Corporate Strategies, Political Conflicts, and Just Solutions In the field of urban climate policy, heat production and demand are key sectors for achieving a sustainable city. Heat production has to shift from fossil to renewable energies, and the heat demand of most buildings has to be reduced significantly via building retrofits. However, analyses of heat transition still lack its contextualization within entangled urban politico-economic processes and materialities and require critical socio-theoretical examination. Asking about the embeddedness of heat transition within social relations and its implications for social justice issues, this article discusses the challenges and opportunities of heat transition, taking Berlin as an example. It uses an urban political ecology perspective to analyze the materialities of Berlin's heating-housing nexus, its politico-economic context, implications for relations of inequality and power, and its contested strategies. The empirical analysis identifies major disputes about the future trajectory of heat production and about the distribution of retrofit costs. Using our conceptual approach, we discuss these empirical findings against the idea of a more just heat transition. For this purpose, we discuss three policy proposals regarding cost distribution, urban heat planning, and remunicipalization of heat utilities. We argue that this conceptual approach provides huge benefits for debates around heat transition and, more generally, energy justice and just transitions. Lissabon Cogitatio Press 11 Urban Planning 2023 Volume 8, No 1 361 371 urn:nbn:de:gbv:wim2-20230524-63845 10.17645/up.v8i1.6178 Institut für Europäische Urbanistik OPUS4-6381 Wissenschaftlicher Artikel Bockelmann, Leo Impacts of Change: Analysing the Perception of Industrial Heritage in the Vogtland Region Beyond metropolitan areas, many peripheral regions and their cities in Europe have, in manifold ways, been significantly shaped by industrialisation. In the context of the relocation of industrial production to other countries over the last decades, the question has been raised as to the role this heritage can play in futural regional development as well as the potential local identification with this history. Hence, this article seeks to analyse the perception of the industrial heritage in the Vogtland region, located alongside the border of three German federal states and the Czech Republic. It inquires as to the perception of the industrial heritage by the local population and related potential future narrations. Based on spontaneous and explorative interviews with local people as an empirical base, a discrepancy between the perception of the tangible and intangible dimensions of the industrial heritage can be observed. On the one hand, the tangible heritage like older factories and production complexes are seen as a functional legacy and an "eyesore" narrative is attributed to them. On the other hand, people often reference the personal and familial connection to the industry and highlight its importance for the historical development and the wealth of the region. But these positive associations are mainly limited to the intangible dimension and are disconnected from the material artefacts of industrial production. Lissabon Cogitatio Press 9 Urban Planning 2023 Volume 8, No 1 30 38 urn:nbn:de:gbv:wim2-20230524-63814 10.17645/up.v8i1.6025 Institut für Europäische Urbanistik OPUS4-6375 Wissenschaftlicher Artikel Abrahamczyk, Lars; Uzair, Aanis On the use of climate models for estimating the non-stationary characteristic values of climatic actions in civil engineering practice The characteristic values of climatic actions in current structural design codes are based on a specified probability of exceedance during the design working life of a structure. These values are traditionally determined from the past observation data under a stationary climate assumption. However, this assumption becomes invalid in the context of climate change, where the frequency and intensity of climatic extremes varies with respect to time. This paper presents a methodology to calculate the non-stationary characteristic values using state of the art climate model projections. The non-stationary characteristic values are calculated in compliance with the requirements of structural design codes by forming quasi-stationary windows of the entire bias-corrected climate model data. Three approaches for the calculation of non-stationary characteristic values considering the design working life of a structure are compared and their consequences on exceedance probability are discussed. Lausanne Frontier Media 9 Frontiers in Built Environment 2023 volume 9, article 1108328 1 9 urn:nbn:de:gbv:wim2-20230524-63751 10.3389/fbuil.2023.1108328 Junior-Professur Komplexe Tragwerke OPUS4-6379 Wissenschaftlicher Artikel Grimme, Sophie Alice; Kollakidou, Avgi; Sønderskov Zarp, Christian; Hornecker, Eva; Krüger, Norbert; Graf, Phillip; Marchetti, Emanuela Floor Cleaners as Helper Pets: Projecting Assistive Robots' Agency on Zoomorphic Affordances Care of ageing adults has become a dominant field of application for assistive robot technologies, promising support for ageing adults residing in care homes and staff, in dealing with practical routine tasks and providing social and emotional relieve. A time consuming and human intensive necessity is the maintenance of high hygiene quality in care homes. Robotic vacuum cleaners have been proven effective for doing the job elsewhere, but—in the context of care homes—are counterproductive for residents' well-being and do not get accepted. This is because people with dementia manifest their agency in more implicit and emotional ways, while making sense of the world around them. Starting from these premises, we explored how a zoomorphic designed vacuum cleaner could better accommodate the sensemaking of people with dementia. Our design reconceptualises robotic vacuum cleaners as a cat-like robot, referring to a playful behaviour and appearance to communicate a non-threatening and familiar role model. Data from an observational study shows that residents responded positively to our prototype, as most of them engaged playfully with it as if it was a pet or a cat-like toy, for example luring it with gestures. Some residents simply ignored the robot, indicating that it was not perceived as frightening or annoying. The level of activity influenced reactions; residents ignored our prototype if busy with other occupations, which proves that it did not cause significant disturbance. We further report results from focus group sessions with formal and informal caregivers who discussed a video prototype of our robot. Caregivers encouraged us to enhance the animal like characteristics (in behaviour and materiality) even further to result in richer interactions and provoke haptic pleasure but also pointed out that residents should not mistake the robot for a real cat. Singapur Springer 14 SN Computer Science 2023 volume 4, article 372 1 14 urn:nbn:de:gbv:wim2-20230524-63796 10.1007/s42979-023-01769-2 Professur Human-Computer Interaction OPUS4-6380 Wissenschaftlicher Artikel Damir, Mirhan; Meyer, Martin; Aziz, Hellen Patterns of Detachment: Spatial Transformations of the Phosphate Industry in el-Quseir, Egypt The establishment of phosphate mines and processing plants by Italian entrepreneurs in el-Quseir in 1912 revitalized a town that had faced a steady decline after the opening of the Suez Canal and re-linked it to the world economy. To this day, the now defunct industrial site occupies a large section of physical el-Quseir and plays a key role in its identity. In this article, we explore the impact of the company's successive industrialization and deindustrialization based on archival research, interviews, and mapping. By tracing physical changes on-site and in the city of el-Quseir from the founding of its phosphate industry until today, as well as the historical and current interactions of citizens with the industrial facilities, we hope to better understand the "cluster value" of the industrial plant in quotidian life and the effect of the vacuum left behind after the termination of production. As machinery and buildings are slowly eroding in the absence of expressed interest by the former Italian and current Egyptian owners, we aim to discuss the relationship between the citizens and their el-Quseir phosphate plant as a crucial element of its heritage value at the local level. Lissabon Cogitatio Press 16 Urban Planning 2023 Volume 8, No 1 1 16 urn:nbn:de:gbv:wim2-20230524-63805 10.17645/up.v8i1.6053 Professur Denkmalpflege und Baugeschichte OPUS4-6382 Wissenschaftlicher Artikel Abdelnour, Mena; Zabel, Volkmar Modal identification of structures with a dynamic behaviour characterised by global and local modes at close frequencies Identification of modal parameters of a space frame structure is a complex assignment due to a large number of degrees of freedom, close natural frequencies, and different vibrating mechanisms. Research has been carried out on the modal identification of rather simple truss structures. So far, less attention has been given to complex three-dimensional truss structures. This work develops a vibration-based methodology for determining modal information of three-dimensional space truss structures. The method uses a relatively complex space truss structure for its verification. Numerical modelling of the system gives modal information about the expected vibration behaviour. The identification process involves closely spaced modes that are characterised by local and global vibration mechanisms. To distinguish between local and global vibrations of the system, modal strain energies are used as an indicator. The experimental validation, which incorporated a modal analysis employing the stochastic subspace identification method, has confirmed that considering relatively high model orders is required to identify specific mode shapes. Especially in the case of the determination of local deformation modes of space truss members, higher model orders have to be taken into account than in the modal identification of most other types of structures. Wien Springer 21 Acta Mechanica 2023 1 21 urn:nbn:de:gbv:wim2-20230525-63822 10.1007/s00707-023-03598-z Institut für Strukturmechanik (ISM) OPUS4-6383 Wissenschaftlicher Artikel Kreskowski, Adrian; Rendle, Gareth; Fröhlich, Bernd Efficient Direct Isosurface Rasterization of Scalar Volumes In this paper we propose a novel and efficient rasterization-based approach for direct rendering of isosurfaces. Our method exploits the capabilities of task and mesh shader pipelines to identify subvolumes containing potentially visible isosurface geometry, and to efficiently extract primitives which are consumed on the fly by the rasterizer. As a result, our approach requires little preprocessing and negligible additional memory. Direct isosurface rasterization is competitive in terms of rendering performance when compared with ray-marching-based approaches, and significantly outperforms them for increasing resolution in most situations. Since our approach is entirely rasterization based, it affords straightforward integration into existing rendering pipelines, while allowing the use of modern graphics hardware features, such as multi-view stereo for efficient rendering of stereoscopic image pairs for geometry-bound applications. Direct isosurface rasterization is suitable for applications where isosurface geometry is highly variable, such as interactive analysis scenarios for static and dynamic data sets that require frequent isovalue adjustment. Oxford Wiley Blackwell 12 Computer Graphics Forum 2022 Volume 4, Issue 7 215 226 urn:nbn:de:gbv:wim2-20230525-63835 10.1111/cgf.14670 Professur Systeme der Virtuellen Realität OPUS4-6410 Wissenschaftlicher Artikel Coenen, Ekkehard Anti-Gewalttrainings, Gewaltwissen und die institutionelle Erzeugung gewaltbefreiter Subjekte Dieser Beitrag fragt danach, wie Wissen über Gewalt in Anti-Gewalttrainings produziert, vermittelt und sozial wirkmächtig wird. Auf Basis des kommunikativen Konstruktivismus werden diese Kurse als gewaltbezogene Institutionen begriffen, in denen eine Wissensordnung der Gewalt stabilisiert wird. Sie sollen Abweichungen von institutionalisierten Wirklichkeitsvorstellungen in Bezug auf Gewalt entgegenwirken. Dabei lassen sie sich als Selbsttechniken begreifen, durch welche die Kursteilnehmer*innen eine spezifische Subjektposition einüben, nämlich die des gewaltbefreiten Subjekts. Vor diesem Hintergrund wird anschließend zwischen konditionalen und konzessiven Anti-Gewalttrainings unterschieden. Erstere wenden sich an Personen, die tatsächlich von der institutionalisierten Wirklichkeitsvorstellung abgewichen sind und somit gesellschaftlich als Gewalttäter*innen eingestuft werden, während Letztere auf eine Klientel zielen, die potenziell von den gängigen Normen abweichen könnte, obwohl noch keine Gewalt aufgetreten sein muss. Abschließend wird gezeigt, dass den Kursleiter*innen eine wichtige Rolle im Subjektivierungsprozess und der Wissenskommunikation über Gewalt zukommt. Neben Wissen über Gewalt werden durch sie auch Wertbindungen, Legitimationen und Weltbilder vermittelt. Wiesbaden VS, Verl. für Sozialwissenschaften/GWV-Fachverlag 16 Soziale Passagen 2023 1 16 urn:nbn:de:gbv:wim2-20230720-64104 10.1007/s12592-023-00453-9 Professur Mediensoziologie OPUS4-6411 Wissenschaftlicher Artikel Vogel, Albert; Arnold, Jörg; Voelker, Conrad; Kornadt, Oliver Data for sound pressure level prediction in lightweight constructions caused by structure-borne sound sources and their uncertainties When predicting sound pressure levels induced by structure-borne sound sources and describing the sound propagation path through the building structure as exactly as possible, it is necessary to characterize the vibration behavior of the structure-borne sound sources. In this investigation, the characterization of structure-borne sound sources was performed using the two-stage method (TSM) described in EN 15657. Four different structure-borne sound sources were characterized and subsequently installed in a lightweight test stand. The resulting sound pressure levels in an adjacent receiving room were measured. In the second step, sound pressure levels were predicted according to EN 12354-5 based on the parameters of the structure-borne sound sources. Subsequently, the predicted and the measured sound pressure levels were compared to obtain reliable statements on the achievable accuracy when using source quantities determined by TSM with this prediction method. Amsterdam Elsevier 16 Data in Brief 2023 Volume 48, June 2023, article 109292 1 16 urn:nbn:de:gbv:wim2-20230719-64114 10.1016/j.dib.2023.109292 Professur Bauphysik OPUS4-6367 Wissenschaftlicher Artikel Alemu, Yohannes L.; Habte, Bedilu; Lahmer, Tom; Urgessa, Girum Topologically preoptimized ground structure (TPOGS) for the optimization of 3D RC buildings As an optimization that starts from a randomly selected structure generally does not guarantee reasonable optimality, the use of a systemic approach, named the ground structure, is widely accepted in steel-made truss and frame structural design. However, in the case of reinforced concrete (RC) structural optimization, because of the orthogonal orientation of structural members, randomly chosen or architect-sketched framing is used. Such a one-time fixed layout trend, in addition to its lack of a systemic approach, does not necessarily guarantee optimality. In this study, an approach for generating a candidate ground structure to be used for cost or weight minimization of 3D RC building structures with included slabs is developed. A multiobjective function at the floor optimization stage and a single objective function at the frame optimization stage are considered. A particle swarm optimization (PSO) method is employed for selecting the optimal ground structure. This method enables generating a simple, yet potential, real-world representation of topologically preoptimized ground structure while both structural and main architectural requirements are considered. This is supported by a case study for different floor domain sizes. Cham Springer International Publishing 11 Asian Journal of Civil Engineering 2023 1 11 urn:nbn:de:gbv:wim2-20230517-63677 10.1007/s42107-023-00640-2 Institut für Strukturmechanik (ISM)