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Minerva-Gentner Symposium: Burchard of Mount Sion’s Descriptio Terrae Sanctae
(2023-03-09)
The Minerva-Gentner Symposium on Burchard of Mount Sion’s Descriptio Terrae Sanctae, organized by Ingrid Baumgärtner and Jonathan Rubin, was held at Bar-Ilan University in Ramat Gan, Israel, from 28 November to 1 December 2022. In the workshop, German, Israeli, Italian and British scholars discussed the challenges – on the level of content, textual philology and technology – of publishing this work in print and digital form. The focus of the discussion was on questions relating to the new edition of the Descriptio , ...
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Utilizing Continuous Kernels for Processing Irregularly and Inconsistently Sampled Data With Position-Dependent Features
(2023-03-13)
Continuous Kernels have been a recent development in convolutional neural networks. Such kernels are used to process data sampled at different resolutions as well as irregularly and inconsistently sampled data. Convolutional neural networks have the property of translational invariance (e.g., features are detected regardless of their position in the measurement domain), which is unsuitable for certain types of data, where the position of detected features is relevant. However, the capabilities of continuous kernels ...
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Effects of the Cellular Morphology on Fatigue Deformation Mechanisms of Physically Foamed Polycarbonate
(2023)
In this study, the tension–tension fatigue behavior of foam injection molded thermoplastic microcellular Polycarbonate (PC) is characterized. The variation in morphology is obtained by modifying the mold temperature, injection volume, injection flow rate, and blowing agent content (physical and chemical) in the polymer melt. The relationship between the wide range of morphological qualities and relevant fatigue properties is made explicit via a statistical correlation coefficient analyses. The analysis is made between ...
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Unionsrechtliche Maßnahmen zugunsten des beschleunigten Ausbaus von erneuerbaren Energien
(2023)
Bislang beschränken sich die Vorgaben der Richtlinie über erneuerbare Energien darauf, bestimmte Anteile erneuerbarer Energien am Energiemix vorzuschreiben. So sah Art. 3 im Jahr 2018 vor, den Anteil am Gesamtenergieverbrauch bis 2030 auf 32 % zu steigern. Art. 16 verlangt bislang vor allem die Einrichtung von Anlaufstellen, Regelungstransparenz und eine Verfahrensdauer von zwei, ausnahmsweise drei Jahren. Inhaltliche Vorgaben für Genehmigungsverfahren fehlen dagegen bislang noch.
In jüngster Zeit unternimmt die ...
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Propagation and branching strategies for job shop scheduling minimizing the weighted energy consumption
(2023)
We consider a job shop scheduling problem with time windows, flexible energy prices, and machines whose energy consumption depends on their operational state (offline, ramp-up, setup, processing, standby or ramp-down). The goal is to find a valid schedule that minimizes the overall energy cost. To solve this problem to optimality, we developed a branch-and-bound algorithm based on a time-indexed integer linear programming (ILP) formulation, which uses binary variables that describe blocks spanning multiple inactive ...
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Identifying critical demand periods in capacity planning for networks including storage
(2023)
We consider a capacity planning problem for networks including storage. Given a graph and a time series of demands and supplies, we seek for integer link and storage capacities that permit a single commodity flow with valid storage in- and outtakes over all time steps. This problem arises, for example, in power systems planning, where storage can be used to buffer peaks of varying supplies and demands. For typical time series spanning a full year at hourly resolution, this leads to huge optimization models. To reduce ...
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Constructing Obstacles: Welchen Einfluss haben Verkehrsabsicherungen an Arbeitsstellen auf die (wahrgenommene) Sicherheit von Radfahrenden?
(2023)
Durch die an Arbeitsstellen verminderte Flächenverfügbarkeit zur Leitung des Verkehrs entstehen in vielen Situationen, an denen im Straßenverkehr gebaut wird, zwangsläufig Konfliktsituationen. Diese Forschung untersucht, welche Faktoren dazu beitragen, auch unter diesen Umständen die (wahrgenommene) Sicherheit dieser Verkehrsteilnehmenden zu wahren. Bisher wurden Arbeitsstellen in Hinblick auf Sicherheitskriterien für den aktiven Verkehr wenig untersucht, weshalb diese Forschung die Erkenntnisse für geteilte ...