Filtern
Dokumenttyp
- Beitrag zu einem Tagungsband (11)
- Zeitschriftenartikel (6)
- Posterpräsentation (4)
- Vortrag (1)
Schlagworte
- Zuverlässigkeit (11)
- POD (10)
- Zerstörungsfreie Prüfung (8)
- Reliability (7)
- Human Factors (6)
- Probability of detection (6)
- Human factors (4)
- NDT (4)
- Simulation (2)
- Standardisierung (2)
- Ultraschallprüfung (2)
- Validation (2)
- ZfP (2)
- 4-Eye Principle (1)
- Automation Bias (1)
- Automatisierung (1)
- Axles (1)
- D-glucose (1)
- Detection Assessments (1)
- Digitalisierung (1)
- EPR spectroscopy (1)
- Eye Tracking (1)
- FTIR spectroscopy (1)
- Fachausschuss (1)
- Failure Modes and Effects Analysis (FMEA) (1)
- Illuminance (1)
- In-Service Inspection (ISI) (1)
- Konjugate (1)
- L-alanine (1)
- Lebensmittel (1)
- MALDI-ToF-MS (1)
- Maillard reaction (1)
- Materials Chemistry (1)
- Mechanical Engineering (1)
- Mechanics of Materials (1)
- Melanoidin (1)
- Melanoidine (1)
- Mensch-Maschine-Interaktion (1)
- Messunsicherheit (1)
- Metals and Alloys (1)
- NMR spectroscopy (1)
- Non-Destructive Testing (NDT) (1)
- Non-destructive testing (1)
- Normung (1)
- Nuclear Power Plants (1)
- Nuclear Waste Storage (1)
- Probabilistischen Bewertung (1)
- Probability of Detection (1)
- RT (1)
- Radiography (1)
- Railway (1)
- Schmiedeteile (1)
- Schnittstellen (1)
- Testkörper (1)
- Time Pressure (1)
- UT (1)
- Ultraschall (1)
- Visual inspection (1)
- Zerstörungsfreie Prüfverfahren (1)
- ZfP 4.0 (1)
Organisationseinheit der BAM
Eingeladener Vortrag
- nein (1)
Human factors (HFs) are a frequently mentioned topic when talking about the reliability of non-destructive testing (NDT). However, probability of detection (POD), the commonly used measure of NDT reliability, only looks at the technical capability of an NDT system to detect a defect.
After several decades of research on the influence of HFs on NDT reliability, there is still no commonly accepted approach to rendering HFs visible in reliability assessment. This paper provides an overview of possible quantitative and qualitative methods for integrating HFs into the reliability assessment. It is concluded that reliability assessment is best carried out using both quantifiable and non-quantifiable approaches to HFs.
The aim of this study was to identify specific chemical bonds and characteristic structures in melanoidins formed from D-glucose and L-alanine between 130 and 200 °C. The results might be used to control the type and amount of melanoidin produced during food processing. For this purpose, complementary techniques, such as FTIR, NMR, EPR, and MALDI-ToF, were employed. At 160 °C color, solubility and UV/Vis absorption change characteristically and consequently, structural transformations could be observed in FTIR and NMR spectra. For example, sharp signals of N-H, C-N, and C-H oscillations in the L-alanine spectrum are prone to inhomogeneous broadening in melanoidins prepared above 150 °C. These changes are caused due to formation of heterogeneous macromolecular structures and occur during condensation reactions that lead to an increasing loss of water from the melanoidins with increasing temperatures. Additionally, MALDI-ToF-MS indicates the polymerization of glyoxal/glyoxylic acid and EPR shows the formation of radical structures.