scholarly journals Residual-based maximum MCUSUM control chart for joint monitoring the mean and variability of multivariate autocorrelated processes

2019 ◽  
Vol 7 (1) ◽  
pp. 364-394 ◽  
Author(s):  
Hidayatul Khusna ◽  
Muhammad Mashuri ◽  
Suhartono ◽  
Dedy Dwi Prastyo ◽  
Muhammad Hisyam Lee ◽  
...  
2012 ◽  
Vol 217-219 ◽  
pp. 2607-2613
Author(s):  
Wen Wan Yang ◽  
Xue Min Zi ◽  
Chang Liang Zou

A new nonparametric multivariate control chart, based on a spatial-sign test and integrating the directional information from processes with the exponentially weighted moving average (EWMA) scheme, is developed for monitoring the mean of a univariate autocorrelated process. Simulation studies show that it has robustness in in-control (IC) performance, and it is more sensitive to the small and moderate mean shifts for non-normality underlying process than other existing multivariate chart methods.


2015 ◽  
Vol 23 (4) ◽  
pp. 578-586 ◽  
Author(s):  
Ana Paula da Conceição ◽  
Mariana Alvina dos Santos ◽  
Bernardo dos Santos ◽  
Diná de Almeida Lopes Monteiro da Cruz

AbstractObjective: to describe self-care behavior and its associated factors in a sample of heart failure Brazilian patients.Method: descriptive cross-sectional study with non-probabilistic sample of 116 ambulatory patients undergoing heart failure treatment. Self-care was evaluated using the Self-Care of Heart Failure Index, (scores ≥70 points=appropriate self-care). Association tests were applied, considering a descriptive level of 0.05.Results: the mean age of participants was 57.7 (SD =11.3) years; 54.3% were male; the mean schooling was 5.5 (SD = 4.0) years; and 74.1% had functional class II-III. The mean scores on the subscales of the Self-Care of Heart Failure Index indicated inappropriate self-care (self-care maintenance: 53.2 (SD =14.3), selfcare management: 50.0 (SD = 20.3) and self-care confidence: 52.6 (SD=22.7)) and it was found low frequencies of participants with appropriate self-care (self-care maintenance, 6.9%), self-care management (14.7%) and self-care confidence (19%). Higher scores of the Self-Care of Heart Failure Index were associated with: reduced left ventricular ejection fraction (p=0.001), longer time of experience with the disease (p=0.05) and joint monitoring by physician and nurse (p=0.007).Conclusion: investments are needed to improve the self-care behavior and the nursing can play a relevant role in this improvement.


2003 ◽  
Vol 35 (2) ◽  
pp. 139-152 ◽  
Author(s):  
John N. Dyer ◽  
Benjamin M. Adams ◽  
Michael D. Conerly

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Ahmed Ibrahim Shawky ◽  
Muhammad Aslam ◽  
Khushnoor Khan

In this paper, a control chart scheme has been introduced for the mean monitoring using gamma distribution for belief statistics using multiple dependent (deferred) state sampling under the neutrosophic statistics. The coefficients of the control chart and the neutrosophic average run lengths have been estimated for specific false alarm probabilities under various process conditions. The offered chart has been compared with the existing classical chart through simulation and the real data. From the comparison, it is concluded that the performance of the proposed chart is better than that of the existing chart in terms of average run length under uncertain environment. The proposed chart has the ability to detect a shift quickly than the existing chart. It has been observed that the proposed chart is efficient in quick monitoring of the out-of-control process and a cherished addition in the toolkit of the quality control personnel.


2014 ◽  
Vol 31 (1) ◽  
pp. 135-151 ◽  
Author(s):  
Shovan Chowdhury ◽  
Amitava Mukherjee ◽  
Subhabrata Chakraborti

2009 ◽  
Vol 121 (1) ◽  
pp. 141-147 ◽  
Author(s):  
Zhang Wu ◽  
Michael B.C. Khoo ◽  
Lianjie Shu ◽  
Wei Jiang
Keyword(s):  

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