Conveners
Quality 1
- Chair: Christian Capezza ()
We explore the concept of parameter design applied to the production of glass beads in the manufacture of metal-encapsulated transistors. The main motivation is to complete the analysis hinted at in the original publication by Jim Morrison in 1957, which was possibly the first example of exploring the idea of transmitted variation in engineering design, and an influential paper in the...
The presence of variation is an undesirable (but natural) factor in processes. Quality improvement practitioners search constantly for efficient ways to monitor it, a primary requirement in SPC. Generally, inspections by attributes are cheaper and simpler than inspections by variables, although they present poor performance in comparison. The $S^2$ chart is widely applied in monitoring process...
Track geometry is critical for railway infrastructures, and the geometry condition and the expected degradation rate are vital for planning maintenance actions to assure the tracks’ reliability and safety. The degradation prediction accuracy is, therefore, essential. The Wiener process has been widely used for degradation analysis in various applications based on degradation measurements. In...
Rail transport demand in Europe has increased over the last few years, and passenger thermal comfort has been playing a key role in the fierce competition among different transportation companies. Furthermore, European standards settle operational requirements of passenger rail coaches in terms of air quality and comfort level. To meet these standards and the increasing passenger thermal...