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| Title: | 兩相依製程之調適性管制圖
Adaptive Control Charts for Two Dependent Process Steps |
| Authors: | 蘇惠君 |
| Contributors: | 楊素芬
蘇惠君 |
| Keywords: | 調適性管制圖
兩相依製程
馬可夫鍊
Adaptive control chart
Two dependent process steps
Markov chain
ATS |
| Date: | 2003 |
| Issue Date: | 2009-09-14 |
| Abstract: | 近年來,許多調適性管制圖都只探討單一製程,然而現今存在許多相依製程的問題.因此本論文提出兩相依製程之調適性管制圖,並以ATS測量管制圖的績效.本論文所提出的變動抽樣間隔時間之調適性管制圖對於偵測製程中幅度及小幅度的偏移有良好的績效.此外,本論文所提出的變動抽樣樣本大小及變動抽樣間隔時間之調適性管制圖對於偵測製程極小幅度的偏移有良好的績效.
In recent years, many research papers about adaptive control charts all consider a single process step. However, there are many multiple process steps in industry process. In this article, we propose adaptive control charts to monitor two dependent process steps, and their average time to signal (ATS) is calculated by Markov chain approach to measure the performance of these proposed control charts. It has been shown that the performance of the adaptive sampling interval (ASI) control charts in detecting small and moderate shifts in process means is better than the fixed sampling interval control charts, especially for small shifts, and the proposed adaptive sample size and sampling interval (ASSI) control charts have better performance in detecting very small shifts in process means than the fixed sample size and sampling interval control charts and the adaptive sample size control charts. |
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| Description: | 碩士
國立政治大學
統計研究所
91354003
92 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0091354003 |
| Data Type: | thesis |
| Appears in Collections: | [統計學系] 學位論文
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