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https://ah.lib.nccu.edu.tw/handle/140.119/18199
題名: | An Approach to Controlling Process Variability for Short Production Runs | 作者: | 楊素芬 Yang, Su-Fen |
貢獻者: | 統計系 | 日期: | Dec-1999 | 上傳時間: | 19-Dec-2008 | 摘要: | A Shewhart R control chart is developed to monitor the process variance for large production runs. It is not appropriate to monitor the process variance using the Shewhart R control chart for short production runs. In this paper, we propose the design of the R control chart for short production runs. For various combinations of the number of samples and the size of each sample, control coefficients of the R control chart are calculated by numerical methods. Using these results, the R control chart for short production runs is developed to monitor the process variance correctly. Finally, the design procedure of the R control chart for short production runs and the results of misusing the Shewhart R control chart are illustrated by an example. | 關聯: | Total Quality Management Journal, 10(8), 1123-1129 | 資料類型: | article | DOI: | http://dx.doi.org/10.1080/0954412997109 |
Appears in Collections: | 期刊論文 |
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