@article{BuschowWellbrock, author = {Buschow, Christopher and Wellbrock, Christian-Mathias}, title = {"Spotify for News"? User Perception of Subscription-Based Content Platforms for News Media}, series = {Journalism and Media}, volume = {2022}, journal = {Journalism and Media}, number = {2023, 4}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/journalmedia4010001}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230124-48740}, pages = {1 -- 15}, abstract = {Subscription-based news platforms (such as "Apple News+" or "Readly") that bundle content from different publishers into one comprehensive package and offer it to media users at a fixed monthly rate are a new way of accessing and consuming digital journalism. These services have received little attention in journalism studies, although they differ greatly from traditional media products and distribution channels. This article empirically investigates the perception of journalism platforms based on eight qualitative focus group discussions with 55 German news consumers. Results show that the central characteristics these platforms should fulfill in order to attract users are strikingly similar to the characteristics of media platforms from the music and video industries, in particular regarding price points, contract features, and modes of usage. Against this background, the potential and perspectives of a subscription-based news platform for journalism's societal role are discussed.}, subject = {Journalistik}, language = {en} } @article{Hanna1990, author = {Hanna, John}, title = {Zu den St{\"a}dtebautheorien von R. Unwin bis E. May : Anmerkungen zum geschichtlichen Hintergrund}, doi = {10.25643/bauhaus-universitaet.1067}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-10677}, year = {1990}, abstract = {Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'}, subject = {St{\"a}dtebau}, language = {de} } @article{CerovsekTurk2004, author = {Cerovsek, Tomo and Turk, Ziga}, title = {Working Together: ICT Infrastructures to Support Collaboration}, doi = {10.25643/bauhaus-universitaet.205}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2055}, year = {2004}, abstract = {The paper summarizes a part of research carried out in ICCI project and provides a current review of ICT infrastructures supporting collaboration. It covers taxonomies, protocols, standards, components, typical subsystems as well as future trends and recommendation for two most important technologies with applications in AEC: (1) EIP (Enterprise information portal) - a single gateway to a company's information, knowledge base, and applications for all actors; (2) RTC (Real-Time Communication and Collaboration technologies) that provide means for asynchronous communication between geographically dislocated people using ICT. Proposed future developments are: orientation towards web services - with building information models, business intelligence, personalization, AEC information retrieval, p2p workspaces and grids.}, subject = {Informationstechnik}, language = {en} } @article{Bach1987, author = {Bach, Joachim}, title = {Wissenschaftlich-technischer Fortschritt und Aufgaben der Stadtplanung}, doi = {10.25643/bauhaus-universitaet.1012}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-10128}, year = {1987}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule f{\"u}r Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'}, subject = {Stadtplanung}, language = {de} } @article{Buschow, author = {Buschow, Christopher}, title = {Why Do Digital Native News Media Fail? An Investigation of Failure in the Early Start-Up Phase}, series = {Media and Communication}, volume = {2020}, journal = {Media and Communication}, number = {Volume 8, Issue 2}, publisher = {Cogitatio Press}, address = {Lissabon}, doi = {10.17645/mac.v8i2.2677}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20200417-41347}, pages = {51 -- 61}, abstract = {Digital native news media have great potential for improving journalism. Theoretically, they can be the sites where new products, novel revenue streams and alternative ways of organizing digital journalism are discovered, tested, and advanced. In practice, however, the situation appears to be more complicated. Besides the normal pressures facing new businesses, entrepreneurs in digital news are faced with specific challenges. Against the background of general and journalism specific entrepreneurship literature, and in light of a practice-theoretical approach, this qualitative case study research on 15 German digital native news media outlets empirically investigates what barriers curb their innovative capacity in the early start-up phase. In the new media organizations under study here, there are—among other problems—a high degree of homogeneity within founding teams, tensions between journalistic and economic practices, insufficient user orientation, as well as a tendency for organizations to be underfinanced. The patterns of failure investigated in this study can raise awareness, help news start-ups avoid common mistakes before actually entering the market, and help industry experts and investors to realistically estimate the potential of new ventures within the digital news industry.}, subject = {Journalismus}, language = {en} } @article{PervyshinYakovlevGordinaetal., author = {Pervyshin, G.N. and Yakovlev, G.I. and Gordina, A.F. and Keriene, J. and Polyanskikh, I.S. and Fischer, Hans-Bertram and Rachimova, N.R. and Buryanov, A.F.}, title = {Water-resistant Gypsum Compositions with Man-made Modifiers}, series = {Procedia Engineering}, journal = {Procedia Engineering}, doi = {10.1016/j.proeng.2017.02.087}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170425-31580}, pages = {867 -- 874}, abstract = {The work has studied the structure and properties of gypsum compositions modified with the manmade modifier based on metallurgical dust and multi-walled carbon nanotubes. The results show that changing the structure of solid gypsum leads to the increase in bending and compressive strength by 70,5\% and 138\% correspondingly, the water resistance increasing and the softening factor reaching 0,85. Modifying gypsum composition with complex additive leads to the formation of amorphous structures based on calcium hydrosilicates on the surface of primary gypsum crystallohydrates that bond gypsum crystals and reduce the access of water.}, subject = {Gips}, language = {en} } @article{Neef2004, author = {Neef, Sonja}, title = {Was ist Europ{\"a}ische Medienkultur?}, doi = {10.25643/bauhaus-universitaet.226}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2262}, year = {2004}, abstract = {Der Sage nach wurde Europa, jene fremde K{\"o}nigstochter, vom G{\"o}ttervater Zeus in der Verkleidung eines majest{\"a}tischen Stiers vom fernen Phoenizien nach Kreta - w{\"o}rtlich - „{\"u}bertragen", das heißt von hier nach dort getragen. So gesehen erzeugt Europa einen dritten Raum, einen Trenn- und/oder Bindestrich zwischen Orient und Okzident, als diasporadische Figur und auch als Kontinent. Die Logik eines solchen Strichs, der zugleich trennt und verbindet, findet eine kartographische Entsprechung im nullten L{\"a}ngengrad, der die ganze Welt in ein Einheit schaffendes Koordinatensystem „{\"u}bersetzt", mit Greenwich als Zentrum. Ein {\"A}quivalent eines solchen fixen Ausgangspunktes findet sich in der perspektivischen Europa-Darstellung in Tiepolos Darstellung der Kontinente im Deckenfries des Treppenhauses der F{\"u}rstbisch{\"o}flichen Residenz in W{\"u}rzburg. In diesem architektonischen Gem{\"a}lde bildet Europa das Frontispiz, das nur von einem privilegierten Standort auf dem ersten Treppenabsatz unverzerrt betrachtet werden kann. Gegenstand dieses Beitrags sind eben diese drei medienkulturellen Europa-Inszenierungen: 1.) eine Sage, 2.) das kartographische Element des Nullmeridians und 3.) Tiepolos Treppenhausgem{\"a}lde, sie alle verstehe ich als medienkulturelle {\"U}bersetzungen Europas. Ziel dieses Beitrags ist es zu fragen, wie diese drei kulturellen Objekte in ihren jeweiligen medialen Modi am Europa-Begriff arbeiten. Dreh- und Angelpunkt ist dabei der Akt des {\"U}bersetzens, und zwar sowohl im Sinne einer Umschrift von einem medialen Modus in den anderen als auch als durchaus physisch zu verstehende Bewegung einer Migration zwischen Heimat und Fremde. Ergebnis dieser Betrachtungen ist ein Europa-Begriff, der nicht unproblematisch mit sich selbst identisch ist, sondern sich erst in der Bewegung des {\"U}bersetzens konstituiert, also im dritten Raum oder als Bindestrich zwischen den Kulturen.}, subject = {Kulturwissenschaften}, language = {de} } @article{TonnTatarin, author = {Tonn, Christian and Tatarin, Ren{\´e}}, title = {Volumen Rendering in der Architektur: {\"U}berlagerung und Kombination von 3D Voxel Volumendaten mit 3D Geb{\"a}udemodellen}, doi = {10.25643/bauhaus-universitaet.2671}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26718}, abstract = {Volumerendering ist eine Darstellungstechnik, um verschiedene r{\"a}umliche Mess- und Simulationsdaten anschaulich, interaktiv grafisch darzustellen. Im folgenden Beitrag wird ein Verfahren vorgestellt, mehrere Volumendaten mit einem Architekturfl{\"a}chenmodell zu {\"u}berlagern. Diese komplexe Darstellungsberechnung findet mit hardwarebeschleunigten Shadern auf der Grafikkarte statt. Im Beitrag wird hierzu der implementierte Softwareprototyp "VolumeRendering" vorgestellt. Neben dem interaktiven Berechnungsverfahren wurde ebenso Wert auf eine nutzerfreundliche Bedienung gelegt. Das Ziel bestand darin, eine einfache Bewertung der Volumendaten durch Fachplaner zu erm{\"o}glichen. Durch die {\"U}berlagerung, z. B. verschiedener Messverfahren mit einem Fl{\"a}chenmodell, ergeben sich Synergien und neue Auswertungsm{\"o}glichkeiten. Abschließend wird anhand von Beispielen aus einem interdisziplin{\"a}ren Forschungsprojekt die Anwendung des Softwareprototyps illustriert.}, subject = {Multiple Volume Rendering}, language = {de} } @article{Vidler2003, author = {Vidler, Anthony}, title = {Virtual spaces, virtual subjects : anxiety and modernity}, doi = {10.25643/bauhaus-universitaet.1242}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080228-13174}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architekturtheorie}, language = {en} } @article{Zinsmeister2003, author = {Zinsmeister, Annett}, title = {Virtual constructions : the standards of utopia}, doi = {10.25643/bauhaus-universitaet.1284}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080318-13540}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {K{\"u}nstliche Welt }, language = {en} } @article{SemenovAlekseevaTarlapan2004, author = {Semenov, Vitaly and Alekseeva, Elena and Tarlapan, Oleg}, title = {Virtual Construction using Map-based Approach}, doi = {10.25643/bauhaus-universitaet.244}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2447}, year = {2004}, abstract = {The paper presents a general map-based approach to prototyping of products in virtual reality environments. Virtual prototyping of products is considered as a consistent simulation and visualization process mapping the source product model into its target visual representations. The approach enables to interrelate formally the product and visual information models with each other by defining mapping rules, to specify a prototyping scenario as a composition of map instances, and then to explore particular product models in virtual reality environments by interpreting the composed scenario. Having been realized, the proposed approach provides for the strongly formalized method and the common software framework to build virtual prototyping applications. As a result, the applications gain in expressiveness, reusability and reliability, as well as take on additional runtime flexibility...}, subject = {Produktmodell}, language = {en} } @article{SchraderHennigThurau, author = {Schrader, Ulf and Hennig-Thurau, Thorsten}, title = {VHB-JOURQUAL2: Method, Results, and Implications of the German Academic Association for Business Research's Journal Ranking}, series = {Business Research}, journal = {Business Research}, doi = {10.1007/BF03342710}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170426-31628}, pages = {180 -- 204}, abstract = {VHB-JOURQUAL represents the official journal ranking of the German Academic Association for Business Research. Since its introduction in 2003, the ranking has become the most influential journal evaluation approach in German-speaking countries, impacting several key managerial decisions of German, Austrian, and Swiss business schools. This article reports the methodological approach of the ranking's second edition. It also presents the main results and additional analyses on the validity of the rating and the underlying decision processes of the respondents. Selected implications for researchers and higher-education institutions are discussed.}, subject = {Rating}, 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} } @article{Mallgrave2008, author = {Mallgrave, Harry Francis}, title = {Utopia or Oblivion : The Image of the 1960s}, doi = {10.25643/bauhaus-universitaet.1314}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080814-13887}, year = {2008}, abstract = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'}, subject = {Architektur}, language = {en} } @article{MeelSatirasetthaveeKanitpongetal., author = {Meel, Inder P. and Satirasetthavee, Dussadee and Kanitpong, Kunnawee and Taneerananon, Pichai}, title = {Using Czech TCT to Assess Safety Impact of Deceleration Lane at Thai U-turns}, series = {ENGINEERING JOURNAL-THAILAND}, journal = {ENGINEERING JOURNAL-THAILAND}, doi = {10.4186/ej.2016.20.1.121}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170406-31097}, pages = {121 -- 135}, abstract = {Purpose of this study is to evaluate safety impact of the deceleration lane at the Upstream Zone of at-grade U-turns on 4-lane divided Thai highways. A substantial speed reduction is required by vehicles for diverging and making U-turn, and the deceleration lanes are provided for this purpose. These lanes are also providing a storage space for the U-turning vehicles to avoid unnecessary blockage of through lanes and reduce the potential of rear-end collisions. The safety at the U-turn is greatly influenced by the proper or improper use of the deceleration lanes. Subject to their length, full or partial speed adjustment can occur within the deceleration lane also the road users' behavior is influenced. To assess the safety impact, the four groups of U-turns with the varying length of deceleration lanes were identified. Owing to limitation of availability and reliability of road crash data in Thailand, widely accepted Traffic Conflict Technique (TCT) was used as an alternative and proactive methodology. The U-turns' geometric data, traffic conflicts and volume data were recorded in the field at 8 locations, 8 hours per location. Severity Conflict Rate (SCR) was assessed by applying a weighing factor (based on the severity grades according to the Czech TCT) to the observed conflicts related to the conflicting traffic volumes. A comparative higher value of SCR represents a lower level of safety. According to the results, increase in the functional length of the deceleration lane yields a lower value of SCR and a higher level of the road safety.}, subject = {Verkehrssicherheit}, language = {en} } @article{KatranuschkovGehreScherer2004, author = {Katranuschkov, Peter and Gehre, Alexander and Scherer, Raimar J.}, title = {User Requirements Capture in Distributed Project Environments: A Process-centred Approach}, doi = {10.25643/bauhaus-universitaet.202}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2029}, year = {2004}, abstract = {Efforts to define standards for representing AEC/FM data have been fairly successful. However defining a standard reference process model has not met with the same success. Yet almost every conceptual modelling or software development project starts by defining the business processes to be supported and the related requirements to be satisfied. This paper describes a new process-centred methodology for user requirements capture developed in the ICCI project (IST-2001-33022). Its essence is in recognising user requirements and use cases in the context of the real construction process, identifying the actors and roles for each individual activity and associating these activities with information, communication and standardisation requirements on the basis of a formalised specification, named the Process Matrix. In the paper we outline the history of process matrix development, introduce the basic structure of the matrix and show how it can be further extended and refined. We present also a web-based software implementation of the developed approach, describe how it has been used in ICCI and outline further perspectives.}, subject = {Informationstechnik}, language = {en} } @article{SanderWeissermel, author = {Sander, Hendrik and Weißermel, S{\"o}ren}, title = {Urban Heat Transition in Berlin: Corporate Strategies, Political Conflicts, and Just Solutions}, series = {Urban Planning}, volume = {2023}, journal = {Urban Planning}, number = {Volume 8, No 1}, publisher = {Cogitatio Press}, address = {Lissabon}, doi = {10.17645/up.v8i1.6178}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230524-63845}, pages = {361 -- 371}, abstract = {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.}, subject = {Berlin}, language = {en} } @article{ZanderWetzelKuehletal., author = {Zander, Steffi and Wetzel, Stefanie and K{\"u}hl, Tim and Bertel, Sven}, title = {Underlying Processes of an Inverted Personalization Effect in Multimedia Learning - An Eye-Tracking Study}, series = {Frontiers in Psychology}, volume = {2017}, journal = {Frontiers in Psychology}, number = {Volume 8, Article 2202}, doi = {10.3389/fpsyg.2017.02202}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180312-37342}, pages = {1 -- 16}, abstract = {One of the frequently examined design principles recommendations in multimedia learning is the personalization principle. Based on empirical evidence this principle states that using personalised messages in multimedia learning is more beneficial than using formal language (e.g. using 'you' instead of 'the'). Although there is evidence that these slight changes in regard to the language style affect learning, motivation and the perceived cognitive load, it remains unclear, (1) whether the positive effects of personalised language can be transferred to all kinds of content of learning materials (e.g. specific potentially aversive health issues) and (2) which are the underlying processes (e.g. attention allocation) of the personalization effect. German university students (N= 37) learned symptoms and causes of cerebral haemorrhages either with a formal or a personalised version of the learning material. Analysis revealed comparable results to the few existing previous studies, indicating an inverted personalization effect for potentially aversive learning material. This effect was specifically revealed in regard to decreased average fixation duration and the number of fixations exclusively on the images in the personalised compared to the formal version. This result can be seen as indicators for an inverted effect of personalization on the level of visual attention.}, subject = {Lernen}, language = {en} } @article{GanevMarinov1997, author = {Ganev, T. and Marinov, M.}, title = {Towards Optimal Designing of thin elastic Plates with a specific free Oscillations Frequency}, doi = {10.25643/bauhaus-universitaet.537}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5375}, year = {1997}, abstract = {Thin elastic plates are the basic constructional elements and are very often subjected to dynamic effects especially in the machine-building structures. Their saving design of resonance conditions of operation is an extremely complicated task which cannot be solved analytically. In the present report an efficient and sufficiently general method for optimal design of thin plates is worked out on the basis of energy resonance method of Wilder, the method of the finite elements for dynamic research and the methods of parameter optimization. By means of these methods various limitations and requirements put by the designer to the plates can be taken into account. A programme module for numerical investigation of the weight variation of the plate depending on the taken variable of the designed thickness at different supporting conditions is developed. The reasons for the considerable quantity and quality difference between the obtained optimal designs are also analysed.}, subject = {Platte}, language = {en} } @article{AzizAnumbaMiles2004, author = {Aziz, Zeeshan and Anumba, Chimay and Miles, John}, title = {Towards a Semantic Grid Computing Platform for Disaster Management in Built Environment}, doi = {10.25643/bauhaus-universitaet.208}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2084}, year = {2004}, abstract = {Current disaster management procedures rely primarily on heuristics which result in their strategies being very cautious and sub-optimum in terms of saving life, minimising damage and returning the building to its normal function. Also effective disaster management demands decentralized, dynamic, flexible, short term and across domain resource sharing, which is not well supported by existing distributing computing infrastructres. The paper proposes a conceptual framework for emergency management in the built environment, using Semantic Grid as an integrating platform for different technologies. The framework supports a distributed network of specialists in built environment, including structural engineers, building technologists, decision analysts etc. It brings together the necessary technology threads, including the Semantic Web (to provide a framework for shared definitions of terms, resources and relationships), Web Services (to provide dynamic discovery and integration) and Grid Computing (for enhanced computational power, high speed access, collaboration and security control) to support rapid formation of virtual teams for disaster management. The proposed framework also make an extensive use of modelling and simulation (both numerical and using visualisations), data mining (to find resources in legacy data sets) and visualisation. It also include a variety of hardware instruments with access to real time data. Furthermore the whole framework is centred on collaborative working by the virtual team. Although focus of this paper is on disaster management, many aspects of the discussed Grid and Visualisation technologies will be useful for any other forms of collaboration. Conclusions are drawn about the possible future impact on the built environment.}, subject = {Mehragentensystem}, language = {en} } @article{AlemuHabteLahmeretal., author = {Alemu, Yohannes L. and Habte, Bedilu and Lahmer, Tom and Urgessa, Girum}, title = {Topologically preoptimized ground structure (TPOGS) for the optimization of 3D RC buildings}, series = {Asian Journal of Civil Engineering}, volume = {2023}, journal = {Asian Journal of Civil Engineering}, publisher = {Springer International Publishing}, address = {Cham}, doi = {10.1007/s42107-023-00640-2}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230517-63677}, pages = {1 -- 11}, abstract = {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.}, subject = {Bodenmechanik}, language = {en} } @article{ZhangHaoWangetal., author = {Zhang, Chao and Hao, Xiao-Li and Wang, Cuixia and Wei, Ning and Rabczuk, Timon}, title = {Thermal conductivity of graphene nanoribbons under shear deformation: A molecular dynamics simulation}, series = {Scientific Reports}, journal = {Scientific Reports}, doi = {10.1038/srep41398}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170428-31718}, abstract = {Tensile strain and compress strain can greatly affect the thermal conductivity of graphene nanoribbons (GNRs). However, the effect of GNRs under shear strain, which is also one of the main strain effect, has not been studied systematically yet. In this work, we employ reverse nonequilibrium molecular dynamics (RNEMD) to the systematical study of the thermal conductivity of GNRs (with model size of 4 nm × 15 nm) under the shear strain. Our studies show that the thermal conductivity of GNRs is not sensitive to the shear strain, and the thermal conductivity decreases only 12-16\% before the pristine structure is broken. Furthermore, the phonon frequency and the change of the micro-structure of GNRs, such as band angel and bond length, are analyzed to explore the tendency of thermal conductivity. The results show that the main influence of shear strain is on the in-plane phonon density of states (PDOS), whose G band (higher frequency peaks) moved to the low frequency, thus the thermal conductivity is decreased. The unique thermal properties of GNRs under shear strains suggest their great potentials for graphene nanodevices and great potentials in the thermal managements and thermoelectric applications.}, subject = {W{\"a}rmeleitf{\"a}higkeit}, language = {en} } @article{Hauptmann2003, author = {Hauptmann, Deborah}, title = {The virtual space of immersion - the third turn of modernity : on the collapse of the subject/object field}, doi = {10.25643/bauhaus-universitaet.1259}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13271}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architektur}, language = {en} } @article{AlsaadSchaelteSchneeweissetal., author = {Alsaad, Hayder and Sch{\"a}lte, Gereon and Schneeweiß, Mario and Becher, Lia and Pollack, Moritz and Gena, Amayu Wakoya and Schweiker, Marcel and Hartmann, Maria and Voelker, Conrad and Rossaint, Rolf and Irrgang, Matthias}, title = {The Spread of Exhaled Air and Aerosols during Physical Exercise}, series = {Journal of Clinical Medicine}, volume = {2023}, journal = {Journal of Clinical Medicine}, number = {Volume 12, issue 4, article 1300}, publisher = {Basel}, address = {MDPI}, doi = {10.3390/jcm12041300}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230208-49262}, pages = {20}, abstract = {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.}, subject = {Sport}, language = {en} } @article{KraazKoopWunschetal., author = {Kraaz, Luise and Koop, Maria and Wunsch, Maximilian and Plank-Wiedenbeck, Uwe}, title = {The Scaling Potential of Experimental Knowledge in the Case of the Bauhaus.MobilityLab, Erfurt (Germany)}, series = {Urban Planning}, volume = {2022}, journal = {Urban Planning}, number = {Volume 7, Issue 3}, doi = {10.17645/up.v7i3.5329}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230509-63633}, pages = {274 -- 284}, abstract = {Real-world labs hold the potential to catalyse rapid urban transformations through real-world experimentation. Characterised by a rather radical, responsive, and location-specific nature, real-world labs face constraints in the scaling of experimental knowledge. To make a significant contribution to urban transformation, the produced knowledge must go beyond the level of a building, street, or small district where real-world experiments are conducted. Thus, a conflict arises between experimental boundaries and the stimulation of broader implications. The challenges of scaling experimental knowledge have been recognised as a problem, but remain largely unexplained. Based on this, the article will discuss the applicability of the "typology of amplification processes" by Lam et al. (2020) to explore and evaluate the potential of scaling experimental knowledge from real-world labs. The application of the typology is exemplified in the case of the Bauhaus.MobilityLab. The Bauhaus.MobilityLab takes a unique approach by testing and developing cross-sectoral mobility, energy, and logistics solutions with a distinct focus on scaling knowledge and innovation. For this case study, different qualitative research techniques are combined according to "within-method triangulation" and synthesised in a strengths, weaknesses, opportunities, and threats (SWOT) analysis. The analysis of the Bauhaus.MobilityLab proves that the "typology of amplification processes" is useful as a systematic approach to identifying and evaluating the potential of scaling experimental knowledge.}, subject = {Stadtplanung}, language = {en} } @article{Gleiter2008, author = {Gleiter, J{\"o}rg H.}, title = {The reality of the imaginary : architectural and the digital image}, doi = {10.25643/bauhaus-universitaet.1301}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080729-13731}, year = {2008}, abstract = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'}, subject = {Architektur}, language = {en} } @article{MinchTrochanowski1997, author = {Minch, M. J. and Trochanowski, A.}, title = {The numerical Modelling and Analysis of RC cracked Structures}, doi = {10.25643/bauhaus-universitaet.527}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5278}, year = {1997}, abstract = {The purpose of this paper is to review model for finite element techniques for non-linear crack analysis of reinforced concrete beams and slabs. The non-linear behaviour of concrete and steel were described. Some calculations of >self-stress< for concrete and reinforced concrete beam was made. Current computational aspects are discussed. Several remarks for future studies are also given. The numerical model of the concrete and reinforced concrete was described. The paper shows the results of calculations on a reinforced concrete plane stress panel with cracks. The non-linear, numerical model of calculations of reinforced concrete was assumed. Using finite elements method some calculations were made. The results of calculations like displacements, stresses and cracking are shown on diagrams. They were compared with experimental results and other finding. Some conclusions about the described model and results of calculation are shown.}, subject = {Tragwerk}, language = {en} } @article{WernerHaaseRenneretal., author = {Werner, Franziska and Haase, Annegret and Renner, Nona and Rink, Dieter and Rottwinkel, Malena and Schmidt, Anika}, title = {The Local Governance of Arrival in Leipzig: Housing of Asylum-Seeking Persons as a Contested Field}, series = {Urban Planning}, journal = {Urban Planning}, number = {Volume 3, Issue 4}, editor = {Eckardt, Frank}, publisher = {Cogitatio Press}, doi = {10.17645/up.v3i4.1708}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190122-38460}, pages = {116 -- 128}, abstract = {The article examines how the German city of Leipzig governs the housing of asylum seekers. Leipzig was a frontrunner in organizing the decentralized accommodation of asylum seekers when adopting its accommodation concept in 2012. This concept aimed at integrating asylum-seeking persons in the regular housing market at an early stage of arrival. However, since then, the city of Leipzig faces more and more challenges in implementing the concept. This is particularly due to the increasingly tight situation on the housing market while the number of people seeking protection increased and partly due to discriminating and xenophobic attitudes on the side of house owners and managers. Therefore, we argue that the so-called refugee crisis of 2015-2016 has to be seen in close interaction with a growing general housing shortage in Leipzig like in many other large European cities. Furthermore, we understand the municipal governing of housing as a contested field regarding its entanglement of diverse federal levels and policy scales, the diversity of stakeholders involved, and its dynamic change over the last years. We analyze this contested field set against the current context of arrival and dynamic urban growth on a local level. Based on empirical qualitative research that was conducted by us in 2016, Leipzig's local specifics will be investigated under the umbrella of our conceptual framework of Governance of Arrival. The issues of a strained housing market and the integration of asylum seekers in it do not apply only to Leipzig, but shed light on similar developments in other European Cities.}, subject = {Stadtplanung}, language = {en} } @article{TolokTolokGomenyuk1997, author = {Tolok, V. A. and Tolok, A. V. and Gomenyuk, S. I.}, title = {The instrumental System of Mechanics Problems Analysis of the deformed Solid Body}, doi = {10.25643/bauhaus-universitaet.536}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5361}, year = {1997}, abstract = {In the abstract proposed is the Instrumental System of mechanics problems analysis of the deformed solid body. It supplies the researcher with the possibility to describe the input data on the object under analyses and the problem scheme based upon the variational principles within one task. The particular feature of System is possibility to describe the information concerning the object of any geometrical shape and the computation sheme according to the program defined for purpose. The Methods allow to compute the tasks with indefinite functional and indefinite geometry of the object (or the set of objects). The System provides the possibility to compute the tasks with indefinite sheme based upon the Finite Element Method (FEM). The restrictions of the System usage are therefore determined by the restrictions of the FEM itself. It contrast to other known programms using FEM (ANSYS, LS-DYNA and etc) described system possesses more universality in defining input data and choosing computational scheme. Builtin is an original Subsytem of Numerical Result Analuses. It possesses the possibility to visualise all numerical results, build the epures of the unknown variables, etc. The Subsystem is approved while solving two- and three-dimensional problems of Elasticiti and Plasticity, under the conditions of Geometrical Unlinearity. Discused are Contact Problems of Statics and Dynamics.}, subject = {Festk{\"o}rpermechanik}, language = {en} } @article{EhlersGrimmerStracketal., author = {Ehlers, Jan and Grimmer, Janine and Strack, Veronika and Huckauf, Anke}, title = {The influence of sham feedback on physiological processing during fear-driven stimulation}, series = {PLOS ONE}, journal = {PLOS ONE}, number = {Volume 16, issue 5, article e0251211}, publisher = {PLOS}, address = {San Francisco, Calif.}, doi = {10.1371/journal.pone.0251211}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20210510-44249}, pages = {1 -- 17}, abstract = {Biofeedback constitutes a well-established, non-invasive method to voluntary interfere in emotional processing by means of cognitive strategies. However, treatment durations exhibit strong inter-individual variations and first successes can often be achieved only after a large number of sessions. Sham feedback constitutes a rather untapped approach by providing feedback that does not correspond to the participant's actual state. The current study aims to gain insights into mechanisms of sham feedback processing in order to support new techniques in biofeedback therapy. We carried out two experiments and applied different types of sham feedback on skin conductance responses and pupil size changes during affective processing. Results indicate that standardized but context-sensitive sham signals based on skin conductance responses exert a stronger influence on emotional regulation compared to individual sham feedback from ongoing pupil dynamics. Also, sham feedback should forego unnatural signal behavior to avoid irritation and skepticism among participants. Altogether, a reasonable combination of stimulus features and sham feedback characteristics enables to considerably reduce the actual bodily responsiveness already within a single session.}, subject = {Biofeedback}, language = {en} } @article{KazakevitchVolkova1997, author = {Kazakevitch, M. I. and Volkova, Viktorija}, title = {The exact Solution of the free pre-stressed Bar-Oscillations}, doi = {10.25643/bauhaus-universitaet.535}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5356}, year = {1997}, abstract = {In this paper the results of the investigations of the free oscillations of the pre-stressed flexible structure elements are presented . Two cases of the central preliminary stress are investigated : without intermediate fastening of the tie to the flexible element and with the intermediate fastening in the middle of the element length. The given physical model can be applied to the flexible sloping shells and arches, membranes, large space antenna fields (besides flexible elements). The peculiarity of these systems is the possibility of the non-adjacent equilibrium form existence at the definite relations of the physical parameters . The transition from one stable equilibrium form to another, non-adjacent form, may be treated as jump. In this case they are called systems with buckling or the systems with two potential «gaps». These systems commenced the new section of the mathematical physics - the theory of chaos and strange attractors. The analysis of the solutions confirms the received for the first time by the author and given in effect of the oscillation period doubling of the system during the transition from the «small» oscillations relatively center to the >large< relatively all three equilibrium conditions. The character of the frequency (period) dependence on the free oscillation amplitudes of the non-linear system also confirms the received earlier result of the duality of the system behaviour : >small< oscillations possess the qualities of soft system; >large< oscillations possess the qualities of rigid system. The >small< oscillation natural frequency changing, depending on the oscillation amplitudes, is in the internal . Here the frequency takes zero value at the amplitude values Aa and Ad (or Aa and Ae ); the frequency takes maximum value at the amplitude value near point b .The >large< oscillation natural frequency changes in the interval . Here is also observed . The influence of the tie intermediate fastening doesn't introduce qualitative changes in the behaviour of the investigated system. It only increases ( four times ) the critical value of the preliminary tension force}, subject = {Bauteil}, language = {en} } @article{Scimemi2003, author = {Scimemi, Maddalena}, title = {The ethics of perception in the "Machine Ages"}, doi = {10.25643/bauhaus-universitaet.1246}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080228-13119}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Moholy-Nagy}, language = {en} } @article{Forty2003, author = {Forty, Adrian}, title = {The empire of language}, doi = {10.25643/bauhaus-universitaet.1253}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13217}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architektur}, language = {en} } @article{Tseng2008, author = {Tseng, Ching-Pin}, title = {The Disjunction between Image and Space: The Representation of Imaginary Reality and Its Spatial Reconstruction}, doi = {10.25643/bauhaus-universitaet.1331}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080815-14052}, year = {2008}, abstract = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'}, subject = {Architektur}, language = {en} } @article{KazakevitchKulyabkoDubichvost1997, author = {Kazakevitch, M. I. and Kulyabko, V. V. and Dubichvost, A. A.}, title = {The discrete dynamic Models of the Interaction of complex - composite Structures with the dynamic Loads}, doi = {10.25643/bauhaus-universitaet.521}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5219}, year = {1997}, abstract = {In the given paper the generalized formulation of the problem of computer modelling of the complex-composite structure interaction with different types of dynamic loads and effects is discussed. Here the analysis is given as for the usage of some universal computing systems for the solution of such problems. Also if is shown that the quantification of the dynamic models of the complex-composite systems with the variable structure, depending on the character and intensivity of the effects, is necessary. The different variants of the joint and the space structure element modelling are gested. It allows to consider the complex modes of the joint bending-torsional oscillations of such structures as bridges, towers, high-rise buildings. The peculiarities of the modelling and testing of some problems of the objects aerodynamics and the interaction of the frameworks constructions with shock and movable loads are considered. In this paper the examples of the complex-composite structure dynamic analysis are shown. It is achieved by means of some special methods of the input of the real inducements and loads of the exploitated analog-object into the computing model. The suggested models found a wide use both at the design of new structures and the dynamic monitoring of the exploitated structures.}, subject = {Verbundtragwerk}, language = {en} } @article{Ebert2003, author = {Ebert, Carola}, title = {The dilemma with disjunction : architecture and discourse in Bernard Tschumi's early work}, doi = {10.25643/bauhaus-universitaet.1281}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080318-13512}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Tschumi}, language = {en} } @article{Hays2008, author = {Hays, K. Michael}, title = {The desire called architecture}, doi = {10.25643/bauhaus-universitaet.1315}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080814-13898}, year = {2008}, abstract = {Wissenschaftliches Kolloquium vom 19. bis 22. April 2007 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚Die Realit{\"a}t des Imagin{\"a}ren. Architektur und das digitale Bild'}, subject = {Architektur}, language = {en} } @article{Smet2003, author = {Smet, Catherine de}, title = {The book as urban metaphor : the design of Les Plans Le Corbusier des Paris 1956-1922}, doi = {10.25643/bauhaus-universitaet.1239}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080228-13078}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Le Corbusier}, language = {en} } @article{Singh2003, author = {Singh, Rupinder}, title = {The architectural sign and the architectural gaze}, doi = {10.25643/bauhaus-universitaet.1277}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080318-13473}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architektur}, language = {en} } @article{VoelkerKornadtOstry, author = {V{\"o}lker, Conrad and Kornadt, Oliver and Ostry, Milan}, title = {Temperature reduction due to the application of phase change materials}, series = {Energy and Buildings}, journal = {Energy and Buildings}, number = {40, 5}, doi = {10.25643/bauhaus-universitaet.3816}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20181025-38166}, pages = {937 -- 944}, abstract = {Overheating is a major problem in many modern buildings due to the utilization of lightweight constructions with low heat storing capacity. A possible answer to this problem is the emplacement of phase change materials (PCM), thereby increasing the thermal mass of a building. These materials change their state of aggregation within a defined temperature range. Useful PCM for buildings show a phase transition from solid to liquid and vice versa. The thermal mass of the materials is increased by the latent heat. A modified gypsum plaster and a salt mixture were chosen as two materials for the study of their impact on room temperature reduction. For realistic investigations, test rooms were erected where measurements were carried out under different conditions such as temporary air change, alternate internal heat gains or clouding. The experimental data was finally reproduced by dint of a mathematical model.}, subject = {Raumklima}, language = {en} } @article{WiegandOsburg, author = {Wiegand, Torben and Osburg, Andrea}, title = {Synthesis, Curing and Thermal Behavior of Amine Hardeners from Potentially Renewable Sources}, series = {Polymers}, volume = {2023}, journal = {Polymers}, number = {volume 15, issue 4, article 990}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/polym15040990}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230524-63745}, pages = {1 -- 12}, abstract = {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.}, subject = {Epoxide}, language = {en} } @article{SchanzTripathy, author = {Schanz, Tom and Tripathy, Snehasis}, title = {Swelling pressure of a divalent-rich bentonite: Diffuse double-layer theory revisited}, series = {Water Resources Research}, journal = {Water Resources Research}, doi = {10.1029/2007WR006495}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20170425-31592}, abstract = {Physicochemical forces are responsible for the swelling pressure development in saturated bentonites. In this paper, the swelling pressures of several compacted bentonite specimens for a range of dry density of 1.10-1.73 Mg/m3 were measured experimentally. The clay used was a divalent-rich Ca-Mg-bentonite with 12\% exchangeable Na+ ions. The theoretical swelling pressure-dry density relationship for the bentonite was determined from the Gouy-Chapman diffuse double-layer theory. A comparison of experimental and theoretical results showed that the experimental swelling pressures are either smaller or greater than their theoretical counterparts within different dry density ranges. It is shown that for dry density of the clay less than about 1.55 Mg/m3, a possible dissociation of ions from the surface of the clay platelets contributed to the diffuse double-layer repulsion. At higher dry densities, the adsorptive forces due to surface and ion hydration dominated the swelling pressures of the clay. A comparison of the modified diffuse double-layer theory equations proposed in the literature to determine the swelling pressures of compacted bentonites and the experimental results for the clay in this study showed that the agreement between the calculated and experimental swelling pressure results is very good for dry densities less than 1.55 Mg/m3, whereas at higher dry densities the use of the equations was found to be limited.}, subject = {Bentonit}, language = {en} } @article{Fink2004, author = {Fink, Thomas}, title = {Structural analysis, design and detailing using standard CAD software and standard building information model}, doi = {10.25643/bauhaus-universitaet.270}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2702}, year = {2004}, abstract = {This paper describes the concept of a german commercial software package developed for the needs of structural engineers. Using a standard CAD software as user interface for all geometrical data and to save all important input data, there is a natural link to upcoming building information models.}, subject = {Bauindustrie}, language = {en} } @article{RombergNigglvanTreeck2004, author = {Romberg, Richard and Niggl, Andreas and van Treeck, Christoph}, title = {Structural Analysis based on the Product Model Standard IFC}, doi = {10.25643/bauhaus-universitaet.243}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2433}, year = {2004}, abstract = {In this paper we present a computer aided method supporting co-operation between different project partners, such as architects and engineers, on the basis of strictly three-dimensional models. The center of our software architecture is a product model, described by the Industry Foundation Classes (IFC) of the International Alliance for Interoperability (IAI). From this a geometrical model is extracted and automatically transferred to a computational model serving as a basis for various simulation tasks. In this paper the focus is set on the advantage of the fully three-dimensional structural analysis performed by p-version of the finite element analysis. Other simulation methods are discussed in a separate contribution of this Volume (Treeck 2004). The validity of this approach will be shown in a complex example.}, subject = {Produktmodell}, language = {en} } @article{ArtusKoch, author = {Artus, Mathias and Koch, Christian}, title = {State of the art in damage information modeling for RC bridges - A literature review}, series = {Advanced Engineering Informatics}, volume = {2020}, journal = {Advanced Engineering Informatics}, number = {volume 46, article 101171}, publisher = {Elsevier Science}, address = {Amsterdam}, doi = {10.1016/j.aei.2020.101171}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220506-46390}, pages = {1 -- 16}, abstract = {In Germany, bridges have an average age of 40 years. A bridge consumes between 0.4\% and 2\% of its construction cost per year over its entire life cycle. This means that up to 80\% of the construction cost are additionally needed for operation, inspection, maintenance, and destruction. Current practices rely either on paperbased inspections or on abstract specialist software. Every application in the inspection and maintenance sector uses its own data model for structures, inspections, defects, and maintenance. Due to this, data and properties have to be transferred manually, otherwise a converter is necessary for every data exchange between two applications. To overcome this issue, an adequate model standard for inspections, damage, and maintenance is necessary. Modern 3D models may serve as a single source of truth, which has been suggested in the Building Information Modeling (BIM) concept. Further, these models offer a clear visualization of the built infrastructure, and improve not only the planning and construction phases, but also the operation phase of construction projects. BIM is established mostly in the Architecture, Engineering, and Construction (AEC) sector to plan and construct new buildings. Currently, BIM does not cover the whole life cycle of a building, especially not inspection and maintenance. Creating damage models needs the building model first, because a defect is dependent on the building component, its properties and material. Hence, a building information model is necessary to obtain meaningful conclusions from damage information. This paper analyzes the requirements, which arise from practice, and the research that has been done in modeling damage and related information for bridges. With a look at damage categories and use cases related to inspection and maintenance, scientific literature is discussed and synthesized. Finally, research gaps and needs are identified and discussed.}, subject = {Building Information Modeling}, language = {de} } @article{KrausCrişanWittor, author = {Kraus, Matthias and Cri{\c{s}}an, Nicolae-Andrei and Wittor, Bj{\"o}rn}, title = {Stability Study of Cantilever-Beams - Numerical Analysis and Analytical Calculation (LTB)}, series = {ce/papers}, volume = {2021}, journal = {ce/papers}, number = {Volume 4, issue 2-4}, publisher = {Ernst \& Sohn, a Wiley brand}, address = {Berlin}, doi = {10.1002/cepa.1539}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220112-45637}, pages = {2199 -- 2206}, abstract = {According to Eurocode, the computation of bending strength for steel cantilever beams is a straightforward process. The approach is based on an Ayrton-Perry formula adaptation of buckling curves for steel members in compression, which involves the computation of an elastic critical buckling load for considering the instability. NCCI documents offer a simplified formula to determine the critical bending moment for cantilevers beams with symmetric cross-section. Besides the NCCI recommendations, other approaches, e.g. research literature or Finite-Element-Analysis, may be employed to determine critical buckling loads. However, in certain cases they render different results. Present paper summarizes and compares the abovementioned analytical and numerical approaches for determining critical loads and it exemplarily analyses corresponding cantilever beam capacities using numerical approaches based on plastic zones theory (GMNIA).}, subject = {Tr{\"a}ger}, language = {en} } @article{Langer2003, author = {Langer, Bernhard}, title = {Spatializing difference}, doi = {10.25643/bauhaus-universitaet.1265}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13333}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architekturtheorie}, language = {en} } @article{BumbergerMaiSchmidtetal., author = {Bumberger, Jan and Mai, Juliane and Schmidt, Felix and L{\"u}nenschloß, Peter and Wagner, Norman and T{\"o}pfer, Hannes}, title = {Spatial Retrieval of Broadband Dielectric Spectra}, series = {Sensors}, journal = {Sensors}, doi = {10.3390/s18092780}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180906-37831}, pages = {1 -- 22}, abstract = {A broadband soil dielectric spectra retrieval approach ( 1 MHz- 2 GHz) has been implemented for a layered half space. The inversion kernel consists of a two-port transmission line forward model in the frequency domain and a constitutive material equation based on a power law soil mixture rule (Complex Refractive Index Model - CRIM). The spatially-distributed retrieval of broadband dielectric spectra was achieved with a global optimization approach based on a Shuffled Complex Evolution (SCE) algorithm using the full set of the scattering parameters. For each layer, the broadband dielectric spectra were retrieved with the corresponding parameters thickness, porosity, water saturation and electrical conductivity of the aqueous pore solution. For the validation of the approach, a coaxial transmission line cell measured with a network analyzer was used. The possibilities and limitations of the inverse parameter estimation were numerically analyzed in four scenarios. Expected and retrieved layer thicknesses, soil properties and broadband dielectric spectra in each scenario were in reasonable agreement. Hence, the model is suitable for an estimation of in-homogeneous material parameter distributions. Moreover, the proposed frequency domain approach allows an automatic adaptation of layer number and thickness or regular grids in time and/or space.}, subject = {Theoretische Elektrotechnik}, language = {en} } @article{DehghaniSalehiMosavietal., author = {Dehghani, Majid and Salehi, Somayeh and Mosavi, Amir and Nabipour, Narjes and Shamshirband, Shahaboddin and Ghamisi, Pedram}, title = {Spatial Analysis of Seasonal Precipitation over Iran: Co-Variation with Climate Indices}, series = {ISPRS, International Journal of Geo-Information}, volume = {2020}, journal = {ISPRS, International Journal of Geo-Information}, number = {Volume 9, Issue 2, 73}, publisher = {MDPI}, doi = {10.3390/ijgi9020073}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20200128-40740}, pages = {23}, abstract = {Temporary changes in precipitation may lead to sustained and severe drought or massive floods in different parts of the world. Knowing the variation in precipitation can effectively help the water resources decision-makers in water resources management. Large-scale circulation drivers have a considerable impact on precipitation in different parts of the world. In this research, the impact of El Ni{\~n}o-Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), and North Atlantic Oscillation (NAO) on seasonal precipitation over Iran was investigated. For this purpose, 103 synoptic stations with at least 30 years of data were utilized. The Spearman correlation coefficient between the indices in the previous 12 months with seasonal precipitation was calculated, and the meaningful correlations were extracted. Then, the month in which each of these indices has the highest correlation with seasonal precipitation was determined. Finally, the overall amount of increase or decrease in seasonal precipitation due to each of these indices was calculated. Results indicate the Southern Oscillation Index (SOI), NAO, and PDO have the most impact on seasonal precipitation, respectively. Additionally, these indices have the highest impact on the precipitation in winter, autumn, spring, and summer, respectively. SOI has a diverse impact on winter precipitation compared to the PDO and NAO, while in the other seasons, each index has its special impact on seasonal precipitation. Generally, all indices in different phases may decrease the seasonal precipitation up to 100\%. However, the seasonal precipitation may increase more than 100\% in different seasons due to the impact of these indices. The results of this study can be used effectively in water resources management and especially in dam operation.}, subject = {Maschinelles Lernen}, language = {en} } @article{Gamble2003, author = {Gamble, M. Eric}, title = {Spaces of momentary encounter in the generic city : cross media analysis}, doi = {10.25643/bauhaus-universitaet.1263}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20080304-13313}, year = {2003}, abstract = {Wissenschaftliches Kolloquium vom 24. bis 27. April 2003 in Weimar an der Bauhaus-Universit{\"a}t zum Thema: ‚MediumArchitektur - Zur Krise der Vermittlung'}, subject = {Architekturtheorie}, language = {en} }