Statistical process control (SPC) is a significant method to monitor processes and ensure quality. Control charts are the most important tools in SPC. As production parts become more complex, there need design using complex distributions. One of number nonconformities C-chart, which uses Poisson distribution as quality characteristic distribution. However, fit count data, equality mean variance...

in this paper, we propose a new approach for ranking all fuzzynumbers based on revising the ranking method proposed by ezzati et al. cite{ezzati}.to this end, we present and investigate some properties of the proposed approach indetails. finally, to illustrate the advantage of the proposed method, it is applied to several groups of fuzzy numbers and the results are compared with other related a...

BACKGROUND Few data are available on the nature of errors in the so-called pre-preanalytic phase, the initial steps of the testing process. We therefore sought to evaluate pre-preanalytic errors using a study design that enabled us to observe the initial procedures performed in the ward, from the physician's test request to the delivery of specimens in the clinical laboratory. METHODS After a...

The aim of the study is to increase efficiency product manufacturing, on basis ofan integrated automated information system nonconforming management enterprise.The main objectives are analyze existing managementsystems market, develop a model an productmanagement when transmitting enterprise departments through unifiedindustry document and informationsystem assess effectiveness managementinform...

In this paper we study finite element discretizations of a surface vector-Laplace eigenproblem. We consider two known classes methods, namely one based on vector analogon the Dziuk-Elliott method and so-called trace technique. A key ingredient in both methods is penalization that used to enforce tangentiality field weak sense. This perturbations arise from numerical approximation lead essential...