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Aeroengine_H2_Flame
No full textDas Bild zeigt eine moderne Turbinenbrennkammer mit einer blauen Wasserstoffflamme. Die Flamme entsteht im vorderen Bereich der Brennkammer und wird durch die Einspritzdüsen gezündet. Die typische blaue Farbe verdeutlicht die Verbrennung von Wasserstoff. Die gezeigten Strömungslinien machen sichtbar, wie die heißen Gase durch die Brennkammer in Richtung der Turbine strömen.
Dieses Bild veranschaulicht den Einsatz von Wasserstoff als klimafreundlichem Energieträger in der Luftfahrttechnik
Requirements analysis: Transcript of the interview with a project manager for the dismantling of core systems at a nuclear power plant
Get PDFBackground:
As part of the doctoral thesis "XR-KIS: An Extended Reality-based Information System for Knowledge Management in Nuclear Facilities," expert interviews were conducted for both requirements analysis and evaluation. The goal of the requirements analysis was to gain in-depth insights into the current state of Knowledge Management in the German nuclear industry. In addition, the requirements for an Extended Reality-based information system to support Knowledge Management in nuclear facilities were examined. Care was taken in selecting interview partners to cover all relevant stakeholders. This includes perspectives from the most important types of nuclear facilities (nuclear power plants, interim storage facilities, final repositories, research facilities) as well as other stakeholders, including federal authorities and engineering service providers.
Regarding the transcript "Interview with a project manager for the dismantling of core systems at a nuclear power plant":
The expert worked for many years as a systems and components manager at a nuclear power plant. Following the shutdown of the plant, he is now the project manager for the dismantling of its core systems. The exchange focused on the distinction between know-why and know-how in the context of decommissioning, the use of laser scans and Artificial Intelligence for 3D models for decommissioning planning, and the general importance of knowledge in operation and decommissioning. Furthermore, the error culture in the field of nuclear and examples of knowledge loss from the operational phase were discussed in detail.
Note:
The interview partner(s) has/have given written consent to the publication of this anonymized transcript as part of an authorization process. The German version represents the original text
Katalogdaten der ULB Darmstadt
No full textBibliothekskatalogdaten der Universitäts- und Landesbibliothek Darmstadt ohne lizenzfreie Medien im MARC21-XML-Format. Stand Juli 2025.
Die Daten sind als gz-Archive gepackt.
Es stehen Testdaten zur Verfügung als MARC21-XML und als XSLX
Supporting Files - Oxygen-induced decomposition in Ru-catalyzed olefin metathesis
No full textSupplementary data for the investigation of an oxygen-induced decomposition reaction in Ru-catalyzed olefin metathesis. The file contains raw spectroscopic data (single spectra from sample characterization and spectra series from reaction monitoring) from NMR, UV/Vis, combined NMR-UV/Vis, and EPR spectroscopy, mass spectrometry, as well as supporting computational data (xyz files)
ΦΩΣ 4D Case Study Ostia – Reconstruction model
No full textReconstruction model of the case study conducted with the Casa delle Ierodule (House of Lucceia Primitiva, Ostia III, ix, 6) within the Case a Giardino (Garden houses) in the ancient city and archaeological site Ostia Antica, Italy. Data Basis: Parco Archeologico di Ostia Antica und ÖAI, FWF P31 438-G25
ΦΩΣ 4D Database Architecture
No full textThe database holds data and metadata concerning observations, openings (doors, windows, etc.) and reflective surfaces of the case studies of the project phos4d and is the base for the respective reconstruction models
A Qualitative Investigation of User Transitions and Frictions in Cross-Reality Applications - dataset
No full texttranscripts of the audio from the recordings of users interacting with the cross reality apparatus. With added transition indicators.
For more details see readme fil
Dataset for Non-contact Ultrasonic Stress Measurement using Lamb Waves
No full textStress measurement is essential in many applications such as aerospace or construction, and ultrasonic stress measurement systems are removable and non-destructive. Using air-coupled ultrasound has the advantage of being non-contact. In other works, an air-coupled ultrasonic phased array is used to adjust the coupling angle and then measure the stress using the conventional transit-time method. In this work, we investigate using the coupling angle of air-coupled Lamb waves directly to measure normal stress in the specimen. The coupling angle is dependent on the phase velocity, which, in turn, changes with the stress. We model that effect using numerical simulations with the semi-analytical finite element method. Ultrasonic measurements are conducted on foam-filled sandwich panels with two 0.5 mm steel face sheets during full-scale bending tests according to EN~14509:2013. The ultrasonic stress measurement setup consists of an air-coupled phased array for transmission, a MEMS-microphone array for reception, and a laser Doppler vibrometer for reference. We measure the stress via the coupling angle using either the transmit or the receive phased array, and for reference, we measure the stress via the transit-time using the group velocity.
The measurement method with the coupling angle method works, both with the transmit or the receive array, with a repeatability of 5.3 MPa and 4.1 MPa, respectively, in the range of 0 to 150 MPa. The transit-time measurement performs better than the coupling angle method with a repeatability of 2.1 MPa since time measurement is more accurate. However, the coupling angle methods measures phase velocity instead of group velocity. Therefore, both methods can be advantageously combined.initial commi
NLPEERv2: A Unified Resource for the Computational Study of Peer Review
No full textDataset of peer review reports and paper drafts from diverse domains and venues. It extends the previous dataset NLPEER to version 2. We provide all sub-versions of the dataset here (check the version tags). In doubt, select the newest one. We provide subsets of the dataset for ease of loading depending on your needs. For the accompanying code to load the data check: https://github.com/UKPLab/nlpeer. ARR-2024 got updated to version 1.1 -- it now also includes camera-ready versions of findings papers.
Data for "Oxidation progress and inner structure during single micron-sized iron particles combustion in a hot oxidizing atmosphere"
No full textThis dataset contains the data shown in figures 4, 5, 6, and 8 of the paper "Oxidation progress and inner structure during single micron-sized iron particles combustion in a hot oxidizing atmosphere" published in the journal Fuel in 2025