Research Data Repository of Saxon Universities
OPARA is the Open Access Repository and Archive for Research Data of Saxon Universities.
Researchers of Saxon Universities can either publish their research data on OPARA, or archive it here to comply with requirements of funding acencies and good scientic practice, without public access.
You can find the documentation of this service at the OPARA manual websites. If you need suppourt using OPARA please contact the Servicedesk of TU Dresden.
Communities in OPARA
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Recent Submissions
Mean Stress Sensitivity of Cold-Worked High-Purity Copper: A comprehensive dataset
(Technische Universität Dresden, 2026-08-25) Schneider, Tom; Schöne, Sebastian; Bohot, André; Lauf, Matthias; Werdin, Sven; Hantschke, Peter; Zimmermann, Martina; Kästner, Markus
The influence of work hardening on the fatigue behaviour of high-purity copper was investigated using commercially available sheet material (3 mm thickness, as-delivered, no additional rolling or heat treatment) in three strength classes (indicated by their R-number, a measure of minimum tensile strength): R240 (two independently supplied batches, R240-1 and R240-2), R290, and R360. These material states are representative of copper conductors used in electrical applications such as traction motors, generators, and battery systems.
For each material state, the dataset comprises:
1. Microstructural characterization by electron backscatter diffraction (EBSD).
2. Quasi-static (monotonic) tensile tests in strain control, using the same specimen geometry as the fatigue specimens (10 mm gauge length; not a standard tensile geometry, so results beyond necking are not comparable to standardized tensile tests).
3. Load-controlled fatigue (Wöhler/S-N) tests on smooth, unnotched specimens at several load ratios, used to quantify the combined effect of mean stress and work-hardening state on fatigue strength. Run-out was defined at 5 10^7 load cycles.
Research data on vapor-liquid equilibria of organic carbonates (DMC, EMC, DEC, EC, and PC) at 101.3, 25.0, and 5.0 kPa, as well as vapor pressure data
(Technische Universität Bergakademie Freiberg, 2026-08-25) Goldberg, Tom
The reported data correspond to the following publication:
Tom Goldberg, Volker Herdegen, Andreas S. Braeuer
“Isobaric vapor-liquid equilibria of binary and multicomponent organic carbonate mixtures (DMC, EMC, DEC, EC, and PC) at 101.3, 25.0, and 5.0 kPa”
Journal of Chemical & Engineering Data, 2026
All measurements were carried out using the all-glass dynamic recirculation still “Labodest VLE 602” (i-Fischer Engineering GmbH, Germany). Detailed information about the materials, experimental setup, experimental procedure, and standard uncertainties can be found in the associated publication.
The file “Vapor_pressure_data.txt” contains vapor pressure data for each of the five pure organic carbonates: dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC), ethylene carbonate (EC), and propylene carbonate (PC).
The file “Binary_VLE_data.txt” contains binary vapor-liquid equilibrium (VLE) data for all 10 binary combinations of the five organic carbonates. The measurements were performed at 101.3 kPa and 25.0 kPa, with the exception of the PC–EC system. For PC–EC, measurements were performed at 25.0 kPa and 5.0 kPa due to observed thermal degradation at temperatures above approximately 483–493 K.
The file “Multicomponent_VLE_data.txt” contains ternary VLE data for the systems DMC–EMC–DEC, DMC–DEC–PC, and EMC–PC–EC, as well as quinary VLE data.
Database of German Nationals Convicted by Soviet Military Tribunals, 1944–1955
(Technische Universität Dresden, 2026-08-19) Schmeitzner, Mike; Thoß, Michael
Database comprising over 31,000 records on the convictions of German nationals by the Soviet Military Tribunals between 1944 and 1955. Depending on the authorization level, users may conduct quantitative queries, retrieve anonymized data, or obtain direct access to individual personal records.
Multisensor Bicycle Overtaking Raw Dataset for Predictive Criticality Assessment
(Technische Universität Bergakademie Freiberg, 2026-08-19) Harnisch, Vincent Leo
This dataset contains 71 multimodal field recordings collected with a mobile bicycle-mounted sensing platform to support research on the early assessment of potentially critical motor-vehicle overtaking manoeuvres. Each recording includes synchronized data from a rear-facing TI AWR1843BOOST 77 GHz mmWave radar, TF-Luna time-of-flight and HC-SR04 ultrasonic lateral-distance sensors, a camera, GPS, and an inertial measurement unit, together with diagnostic logs. Seventeen sessions additionally contain live machine-learning inference and warning logs. The data support causal vehicle tracking, trajectory reconstruction, overtaking-event detection, reference-assisted labeling, full-ride replay, and the evaluation of edge-deployable warning models. The final thesis evaluation used a manually reviewed event dataset derived from 53 rides, comprising 491 usable events. Two rides contain header-only IMU files and are handled using explicit missing-data indicators.
Supplementary focus-group documentation is included only as a presentation-pdf and statistical questionnaire.
Distortion-modulated bonding characteristics in group IV – VI chalcogenides and LaSb
(Universität Leipzig, 2026-08-18) Zahn, Franziska; Yazlak, Mustafa Göktürk
This data set contains the data shown in the figures of the Research article 'Distortion-modulated bonding characteristics in group IV – VI chalcogenides and LaSb'