Process Capability Assessment for Asymmetric Tolerances with Consideration of Gauge Measurement Errors

In recent years, the issue of process capability assessment in the presence of gauge measurement errors (GME) for cases with symmetric tolerances was investigated enthusiastically. However, even processes with symmetric tolerances are very common in practical situations, cases of asymmetric tolerances also occur in manufacturing industries. In this article, a novel approach, called the generalized confidence interval (GCI) approach, is applied to assess the capabilities of processes with asymmetric tolerances in the presence of the GME. To examine the performance of the proposed approach, an exhaustive simulation was conducted. The conclusion is that the proposed approach appears quite satisfactorily for assessing process performance with asymmetric tolerances in the presence of GME in terms of the coverage rate (CR) and the average value of the generalized lower confidence limits.     

Performance evaluation of processes with asymmetric tolerances in the presence of gauge measurement errors

ABSTRACT

In this study, the generalized confidence interval method is applied to evaluate the performances of processes with asymmetric tolerances taking into account the gauge measurement errors (GME). To examine the performance of the proposed method, a series of simulations is conducted. Moreover, a sensitivity study is carried out to analyze the effects of ignoring GME. The proposed method performs very well and can be recommended for assessing the performances of processes with asymmetric tolerances in the presence of GME.     

Female Excluded more than Male: Do Community Characteristics Matter?

Social Indicators Research - Despite numerous studies on social exclusion which acknowledge gender disparity within the issue, very few are focused on widening the analysis into community-level...     

Gendered Careers in Post-Soviet Society: Views on Professional Qualifications in Surgery and Pediatrics

This study examines the medical profession in post-Soviet society, where women have been in the majority of the physicians for almost seven decades. It examines pediatricians’ and surgeons’ definitions of the professional skills and qualities needed for “good” work. Lithuania is used as a case study. Thirty-six semi-structured interviews were conducted in 2005 with male and female surgeons and pediatricians in Lithuania. The results show that the gender composition of the specialty—surgery being a male-dominated and pediatrics a female-dominated specialty—tended to influence the way that physicians perceived the qualities needed for good work. For surgeons, male-gendered qualities were prerequisites for being a good surgeon: physical strength and being in control. Female surgeons added a female-gendered quality—empathy and compassion—that made them good surgeons. A good pediatrician had a holistic and empathic approach and an ability to communicate, which were seen as female-gendered skills. Male pediatricians experienced otherness in this specialty but did not, as women surgeons did, offer a counter discourse in order to legitimate themselves as being as skilled as women.