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Sicherheitslebenszyklusmodelle beschreiben Tätigkeiten sowie Vorgehensweisen zur Entwicklung und Betrieb von sicherheitstechnischen Geräten bzw. Systemen zur Vermeidung systematischer Fehler. In der vorliegenden Veröffentlichung beschreibt die Entwicklung und Evaluation von Sicherheitslebenszyklusmodelle für Prozessmodule sowie modulare Anlagen. Die Entwicklung basiert auf einer Dokumentenanalyse der Normenserien DIN EN 61508 und DIN EN 61511. Die Evaluation wurde im Rahmen mehrerer Expertenworkshops durchgeführt.
This collection belongs to the doctoral thesis "Nonlinear Parameter Estimation of Experimental Cake Filtration Data". Most of the content are Jupyter notebooks which contain the Python code which reproduces graphs found in the thesis from the original experimental data. The lab practice dataset that contains 500 filtration experiments is contained in the folder for section 3.5. The notebooks are not strictly sorted by section. At any rate, the Readme will guide you to the notebook which produces a certain graph, if it is not part of the main notebook of that specific section. The original Python environment was set up with Anaconda. Please use the provided .yml file to create a Python environment which contains all the necessary packages. Some notebooks may not work with the most current versions of the packages, so updating is not necessarily a good idea.
Experimental data for all 35 subjects of the experiment.
An automatic workflow is introduced, including an image-based tracking tool, to measure surface flow velocities in rivers. The method is based on PTV and comprises an automatic definition of the search area for particles to track. Tracking is performed in the original images. Only the final tracks are geo-referenced, intersecting the image observations with water surface in object space. Detected particles and corresponding feature tracks are filtered considering particle and flow characteristics to mitigate the impact of sun glare and outliers. The method can be applied to different perspectives, including terrestrial and aerial (i.e. UAV) imagery. To account for camera movements images can be co-registered in an automatic approach. In addition to velocity estimates, discharge is calculated using the surface velocities and wetted cross-section derived from surface models computed with SfM and multi-media photogrammetry. The workflow is tested at two river reaches (paved and natural) in Germany. Reference data is provided by ADCP measurements. At the paved river reach highest deviations of flow velocity and discharge reach 5% and 4%, respectively. At the natural river deviations are larger (26% and 20%, respectively) due to the irregular cross-section shapes hindering accurate contrasting of ADCP- and image-based results. The provided tool enables the measurement of surface flow velocities independently of the perspective from which images are acquired. With the contact-less measurement spatially distributed velocity fields can be estimated and river discharge in previously ungauged and unmeasured regions can be calculated.
Im Rahmen des Projekts "Sicherheitsvorstellungen in der Antike" wurde unter Leitung von Daniel Pauling eine umfangreiche Datenbank erstellt, die sämtliche Quellenstellen aus der griechischen Archaik und Klassik enthällt, in denen das Schlagwort ἀσφάλεια (asphaleia) verwendet wurde, welches als "Sicherheit" ins Deutsche übertragen wird. Auf dieser Forschungsdatenbasis wurde die Dissertation von Pauling "Ἀσφάλεια. Die Entwicklung der Sicherheitsvorstellungen und der Diskurs über Sicherheit im archaischen und klassischen Griechenland" erstellt. Sie ist frei verfügbar über den OpenAccess-Server Qucosa sowie im Hochschulschriftenmagazin der SLUB Dresden. (Link folgt) Die Quellenstellen wurden gesammelt, archiviert und auf mehreren Ebenen intensiv verschlagwortet. Dies geschah ursprünglich im Dateiformat MS Access 2016 (Quellensammlung_Asphaleia_v1.0.1.accdb). Diese Datenbank wird hier der Forschungsgemeinschaft frei zugänglich gemacht. Um eine nachhaltige und dauerhafte Nutzbarkeit zu gewährleisten wurde die Access-Datenbank auch als valides TEI XML 1.0 Dokument veröffentlicht (Quellensammlung_Asphaleia_v1.0.1.xml). Die Erschließung der Datenbank in beiden Dateiformaten ermöglicht die Dokumentation im PDF-Format (Quellensammlung_Asphaleia_BeschreibungUndSchlagwortverzeichnis.pdf - Acrobat Reader o.ä. wird benötigt). In ihr werden sämtliche Felder bzw. XML-Elemente der Datenbank sowie die möglichen darin enthaltenen Werte der Datensätze beschrieben und erläutert.
Supplementary data to publication GPS Solutions 24:64 (2020) Wanninger, L., Heßelbarth, A. (2020): GNSS code and carrier phase observations of a Huawei P30 smartphone: quality assessment and centimeter-accurate positioning; GPS Solutions 24:64, https://doi.org/10.1007/s10291-020-00978-z (open access). The data set consists of GNSS observations of a smartphone Huawei P30. They were collected in 8 static observation sessions with an overall duration of 77 h. Each session data set includes raw data gathered by GNSSLogger and RINEX files for Huawei P30 and a local reference station. The data sets are stored in two separate zip-archives. This archive contains the RINEX observations of Huawei P30, RINEX observations of the local reference station "BZW1" equipped with SEPT POLARX5 / JAVRINGANT_DM JVDM, broadcast ephemerides in RINEX format, and antenna corrections in ANTEX format. All RINEX files containing Huawei P30 observations use station name "HUAW". The five rooftop sessions with different Huawei P30 orientations were used to calibrate the phase center of the smartphone. This was repeated with the DRB2 rotational device, which enables observations in four azimuthal orientations per minute. Our results of the HUAWEI P30 phase center calibration, valid for the setup as shown in the paper (Fig. 1), are found in the ANTEX directory. The two field sessions are complemented with additional observations by LEICA GRX1200+ GNSS / NAX3G+C NONE at the same stations as used by the Huawei P30. In field session 1 the station is named "1000". In the second session it is called "2000".
Supplementary data to publication GPS Solutions 24:64 (2020) Wanninger, L., Heßelbarth, A. (2020): GNSS code and carrier phase observations of a Huawei P30 smartphone: quality assessment and centimeter-accurate positioning; GPS Solutions 24:64, https://doi.org/10.1007/s10291-020-00978-z (open access). The data set consists of GNSS observations of a smartphone Huawei P30. They were collected in 8 static observation sessions with an overall duration of 77 h. Each session data set includes raw data gathered by GNSSLogger and RINEX files for Huawei P30 and a local reference station. The data sets are stored in two separate zip-archives. This archive contains the GNSSLogger raw data of the Huawei P30 GNSS measurements for all 8 sessions.