@article{Ziegler, author = {Ziegler, Verena}, title = {Inbetween - A Post-Digital Turn - Craft-making 4.0}, series = {archiDOCT}, volume = {Vol. 7}, number = {2}, issn = {2309-0103}, pages = {80 -- 95}, abstract = {Traditional Western philosophy, cognitive science and traditional HCI frameworks approach the term digital and its implications with an implicit dualism (nature/cul-ture, theory /practice, body/mind, human/machine). What lies between is a feature of our postmodern times, in which different states, conditions or positions merge and co-exist in a new, hybrid reality, a "continuous beta" (M{\"u}hlenbeck \& Skibicki, 2007) version of becoming .Post-digitality involves the physical dimensions of spatio-temporal engagements. This new ontological paradigm reconceptualizes digital technology through the ex-perience of the human body and its senses, thus emphasizing form-taking, situation-al engagement and practice rather than symbolic, disembodied rationality. This rais-es two questions in particular: how to encourage curiosity, playfulness, serendipity, emergence, discourse and collectivity? How to construct working methods without foregrounding and dividing the subject into an individual that already takes posi-tion? This paper briefly outlines the rhizomatic framework that I developed within my PhD research. This attempts to overcome two prevailing tendencies: first, the one-sided view of scientific approaches to knowledge acquisition and the pure-ly application-oriented handling of materials, technologies and machines; second, the distanced perception of the world. In contrast, my work involves project-driven alchemic curiosity and doing research through artistic design practice. This means thinking through materials, technologies and machinic interactions. Now, at the end of this PhD journey, 10 interdisciplinary projects have emerged from this ontological queer-paradigm that is post-digital-crafting 4.0. Below I illustrate this approach and its outcomes.}, language = {en} } @incollection{Ziegler, author = {Ziegler, Verena}, title = {Pop-up Workshopreihe}, series = {Matters of Communication - Formen und Materialit{\"a}ten gestalteter Kommunikation}, publisher = {transcript-Verlag}, address = {Bielefeld}, isbn = {978-3-8394-5118-2}, doi = {10.14361/9783839451182-021}, pages = {199 -- 205}, language = {de} } @article{TolaMuletaHofacker, author = {Tola, Yetenayet B. and Muleta, Obsuman D. and Hofacker, Werner}, title = {Low-cost modified-atmosphere hermetic storage structures to reduce storage losses of maize (Zea mays L.) cobs and sorghum (Sorghum bicolor L.) heads}, series = {Journal of the Science of Food and Agriculture}, volume = {Vol. 100}, number = {Issue 3}, publisher = {Wiley Interscience}, address = {New York}, issn = {1097-0010}, doi = {10.1002/jsfa.10122}, pages = {1132 -- 1141}, abstract = {Production and marketing of cereal grains are some of the main activities in developing countries to ensure food security. However, the food gap is complicated further by high postharvest loss of grains during storage. This study aimed to compare low-cost modified-atmosphere hermetic storage structures with traditional practice to minimize quantitative and qualitative losses of grains during storage. The study was conducted in two phases: in the first phase, seven hermetic storage structures with or without smoke infusion were compared, and one selected structure was further validated at scaled-up capacity in the second phase.}, language = {en} } @article{StuermerFritz, author = {St{\"u}rmer, Sylvia and Fritz, Walter}, title = {Von wegen Bauschutt}, series = {Bauen im Bestand : B + B}, volume = {23}, number = {6}, publisher = {Rudolf M{\"u}ller}, address = {K{\"o}ln}, issn = {2190-9504}, pages = {24 -- 30}, abstract = {RC-Betone sind keine Neu-Entwicklungen, aber sie erleben seit circa 15 Jahren in Deutschland eine Renaissance mit Materialzusammensetzungen, die den heutigen Anforderungen an Normalbetone gerecht werden. Es gab immer wieder Abschnitte in der (Bau-)Geschichte, in denen Geb{\"a}ude aus Ziegelsplitt-Betonen errichtet wurden, wie das Max-Kade-Studentenwohnheim in Stuttgart und das Technische Rathaus in T{\"u}bingen. Beide stammen aus der Nachkriegszeit und weisen einen guten Erhaltungszustand auf. Sie sind Beispiele f{\"u}r die Bew{\"a}hrung "historischer" Ziegelsplitt-Betone in der Baupraxis und ihre lange technische Lebensdauer.}, language = {de} } @article{StuermerFritz, author = {St{\"u}rmer, Sylvia and Fritz, Walter}, title = {Von historischen Ziegelsplitt- und modernen R-Betonen}, series = {Bausubstanz : Zeitschrift f{\"u}r nachhaltiges Bauen, Bauwerkserhaltung und Denkmalpflege}, volume = {11}, number = {6}, publisher = {Fraunhofer IRB-Verlag}, address = {Stuttgart}, issn = {2190-4278}, pages = {37 -- 43}, abstract = {Weder f{\"u}r moderne Recycling-Betone gem{\"a}ß Regelwerk noch f{\"u}r Ziegelsplittbetone der Nachkriegsjahre bestehen prinzipielle Bedenken gegen deren Einsatz oder die Weiternutzung im Hochbau. Die Autoren w{\"u}nschen sich mehr Akzeptanz und Vertrauen in Recyclingbaustoffe und dass sich f{\"u}r "Vintage" im Baubereich irgendwann ein {\"a}hnliches Interesse herausbildet wie f{\"u}r Vintage-M{\"o}bel oder Used-Look-Kleidung - und dies nicht nur hinsichtlich der Wiederverwendung gebrauchter T{\"u}ren und Treppen, sondern auch f{\"u}r mineralische Massenbaustoffe wie Beton. Der Beitrag veranschaulicht anhand erfolgreich realisierter Objektbeispiele, wie Hochh{\"a}user (z.B. das Studentenwohnheim Max-Kade-Haus in Stuttgart, 1953, aus Bauschuttbeton) oder Sakralgeb{\"a}ude (Fatima-Kirche in Kassel aus Sichtbeton mit Ziegelbruch, 60 Jahre alt) sowie auch Verwaltungsbauten (Technisches Rathaus in T{\"u}bingen aus den 1950er Jahren) erfolgreich und nachhaltig mit Recyclingmaterialien errichtet wurden.}, language = {de} } @article{JoedickeZirklerEckhardetal., author = {J{\"o}dicke, Katrin and Zirkler, Robin and Eckhard, Timo and Hofacker, Werner and J{\"o}dicke, Bernd}, title = {High End Quality Measuring in Mango Dryingthrough Multi-Spectral Imaging Systems}, series = {ChemEngineering; Special Issue "Selected papers from the Third Nordic Baltic Drying Conference (NBDC 2019)"}, volume = {Vol. 4}, number = {Issue 1}, publisher = {MDPI AG}, address = {Basel, CH}, issn = {2305-7084}, doi = {10.3390/chemengineering4010008}, pages = {13}, abstract = {In modern fruit processing technology, non-destructive quality measuring techniques aresought for determining and controlling changes in the optical, structural, and chemical properties of theproducts. In this context, changes inside the product can be measured during processing. Especiallyfor industrial use, fast, precise, but robust methods are particularly important to obtain high-qualityproducts. In this work, a newly developed multi-spectral imaging system was implemented andadapted for drying processes. Further it was investigated if the system could be used to link changesin the surface spectral reflectance during mango drying with changes in moisture content andcontents of chemical components. This was achieved by recovering the spectral reflectance frommulti-spectral image data and comparing the spectral changes with changes of the total soluble solids(TSS), pH-value and the relative moisture contentxwbof the products. In a first step, the camera wasmodified to be used in drying, then the changes in the spectra and quality criteria during mangodrying were measured. For this, mango slices were dried at air temperatures of 40-80◦C and relativeair humidities of 5\%-30\%. Samples were analyzed and pictures were taken with the multi-spectralimaging system. The quality criteria were then predicted from spectral data. It could be shown thatthe newly developed multi-spectral imaging system can be used for quality control in fruit drying.There are strong indications as well, that it can be employed for the prediction of chemical qualitycriteria of mangoes during drying. This way, quality changes can be monitored inline during theprocess using only one single measuring device.}, language = {en} } @article{BraunStuermerHoffmann, author = {Braun, Sarah and St{\"u}rmer, Sylvia and Hoffmann, Cristina}, title = {Feuchteadsorption unterschiedlicher Estriche bei verschiedenen Klimabedingungen}, series = {Der Bausachverst{\"a}ndige : Zeitschrift f{\"u}r Bausch{\"a}den, Baurecht und gutachterliche T{\"a}tigkeit}, volume = {16}, number = {4}, publisher = {Fraunhofer IRB-Verlag}, address = {Stuttgart}, issn = {1614-6123}, pages = {21 -- 26}, abstract = {Die wenigen Literaturangaben zu Sorptionsisothermen von mineralischen Estrichen beziehen sich im Wesentlichen auf Calciumsulfatestriche und genormte Zementestriche, sowie i.d.R. nur auf eine festgesetzte Lufttemperatur (= 20 Grad C). Daher war es das Anliegen der im Beitrag beschriebenen Untersuchung, die Feuchtigkeitseigenschaften von Estrichen bei unterschiedlichen Klimaten mithilfe von Sorptionsisothermen zu charakterisieren. Erg{\"a}nzend sollten die seit ca. 20 Jahren markt{\"u}blichen tern{\"a}ren Schnellzemente mit untersucht und die baupraktisch interessanten Temperaturen von 15 Grad C und 25 Grad C einbezogen werden. Ebenso wurden die Auswirkungen der Klimabedingungen auf der Baustelle (Jahreszeit, Luftfeuchtigkeit, Temperatur) auf den Hydratationsvorgang der Estriche untersucht. In Kombination mit den Ergebnissen der Gef{\"u}geuntersuchungen (u.a. Hg-Porosimetrie) wird belegt, weshalb sich die zement- und schnellzementgebundenen Estriche vollkommen anders verhalten als die calciumsulfatgebundenen Estriche. Dieses unterschiedliche Verhalten ist auch einer der Gr{\"u}nde, warum Estriche mit der KRL-Methode in Bezug auf ihren Feuchtegehalt nicht bewertet werden k{\"o}nnen. Deshalb folgt ein Vergleich der Materialfeuchtemessungen "KRL-Methode" mit der handwerks{\"u}blichen und seit Jahrzehnten in der Praxis bew{\"a}hrten "CM-Methode".}, language = {de} } @inproceedings{KellerMueller, author = {Keller, Simon and Mueller, Rainer}, title = {Decentralized stream processing for spatial range queries in high-density systems}, series = {MobiArch'20: Proceedings of the ACM MobiArch 2020 - The 15th Workshop on Mobility in the Evolving Internet Architecture, 21. September 2020, London, UK}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-4503-8081-2}, doi = {10.1145/3411043.3412503}, pages = {36 -- 41}, abstract = {Location-aware mobile devices are becoming increasingly popular and GPS sensors are built into nearly every portable unit with computational capabilities. At the same time, the emergence of location-aware virtual services and ideas calls for new efficient spatial real-time queries. Communication latency in mobile environments interacting with high decentralization and the need of scalability in high-density systems with immense client counts leads to major challenges. In this paper we describe a decentralized architecture for continuous range queries in settings in which both, the requested and the requesting clients, are mobile. While prior works commonly use a request-response approach we provide a stream-based adaptive grid solution dealing with arbitrary high client counts and improving communication latency that meets given hard real-time constraints.}, language = {en} } @phdthesis{Bendel, type = {Bachelor Thesis}, author = {Bendel, Julian}, title = {Nutzung regionaler Ressourcen, insbesondere Lehm und Holz als nachhaltige und wirtschaftliche Baumaterialien im Zusammenhang mit der Realisierung des Maun Science Park in Botswana f{\"u}r zuk{\"u}nftige Bauprojekte weltweit}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:kon4-opus4-27070}, pages = {60}, language = {en} } @inproceedings{WeberGaidukScherzetal., author = {Weber, Lucas and Gaiduk, Maksym and Scherz, Wilhelm Daniel and Seepold, Ralf}, title = {Cardiac Abnormality Detection in 12-lead ECGs With Deep Convolutional Neural Networks Using Data Augmentation}, series = {Computing in Cardiology (CinC 2020, September 13th-16th, Rimini, Italy, virtual)}, volume = {47}, publisher = {IEEE}, isbn = {978-1-7281-7382-5}, issn = {2325-887X}, doi = {10.22489/CinC.2020.229}, pages = {4}, abstract = {A residual neural network was adapted and applied to the Physionet/Computing data in Cardiology Challenge 2020 to detect 24 different classes of cardiac abnormalities from 12-lead. Additive Gaussian noise, signal shifting, and the classification of signal sections of different lengths were applied to prevent the network from overfitting and facilitating generalization. Due to the use of a global pooling layer after the feature extractor, the network is independent of the signal's length. On the hidden test set of the challenge, the model achieved a validation score of 0.656 and a full test score of 0.27, placing us 15th out of 41 officially ranked teams (Team name: UC_Lab_Kn). These results show the potential of deep neural networks for ap- plication to raw data and a complex multi-class multi-label classification problem, even if the training data is from di- verse datasets and of differing lengths.}, language = {en} }