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Monitoring the Coefficient of Variation Using a Variable Sampling Interval Control Chart
The coefficient of variation (CV) is a quality characteristic that has several applications in applied statistics and is receiving increasing attention in quality control. Few papers have proposedExpand
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Monitoring the Coefficient of Variation Using EWMA Charts
The coefficient of variation (CV) is a quality characteristic that has several applications in applied statistics and is receiving increasing attention in quality control. A few papers have proposedExpand
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Monitoring the Coefficient of Variation Using Control Charts with Run Rules
Abstract Monitoring the coefficient of variation (CV) is a successful approach to Statistical Process Control when the process mean and standard deviation are not constant. In recent years the CV hasExpand
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A new efficient encoding/decoding procedure for the design of a supply chain network with genetic algorithms
Supply chain network (SCN) design is a strategic issue which aims at selecting the best combination of a set of facilities to achieve an efficient and effective management of the supply chain. ThisExpand
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THE EXACT RUN LENGTH DISTRIBUTION AND DESIGN OF THE S2 CHART WHEN THE IN-CONTROL VARIANCE IS ESTIMATED
When monitoring the process variability, it is a common practice that a Phase I data set is used to estimate the unknown in-control process standard deviation σ0 or variance to set up the controlExpand
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An Evolutionary Algorithm for Pure Fuzzy Flowshop Scheduling Problems
The pure flowshop scheduling problem is here investigated from a perspective considering me uncertainty associated with the execution of shop floor activities. Being the flowshop problem is NPExpand
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Multiobjective economic design of an X control chart
The prevention of defective products is a fundamental principle of total quality management and control charts are a powerful statistical tool to reach this objective, but they are expensive and mayExpand
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Robust design of adaptive control charts for manual manufacturing/inspection workstations
Often the manufacturing and the inspection workstations in a manufacturing process can coincide: thus, in these workstations the statistical process control (SPC) procedure of collecting sampleExpand
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Monitoring the coefficient of variation using a variable sample size control chart
This paper proposes an adaptive Shewhart control chart implementing a variable sample size strategy in order to monitor the coefficient of variation. The goals of this paper are as follows: (a) toExpand
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Economic design of Shewhart control charts for monitoring autocorrelated data with skip sampling strategies
On-line monitoring of process variability is strategic to achieve high standards of quality and maintain at acceptable levels the number of nonconforming items. Shewhart control charts are theExpand
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