Results 1 to 10 of about 424,805 (289)

Optimized repetitive sampling X-bar control chart: performance evaluation and comparison with Shewhart control chart [PDF]

open access: goldFrontiers in Applied Mathematics and Statistics, 2023
When initial sample information falls short of enabling industrial engineers to confidently make decisions about lot quality assessment, repetitive sampling emerges as a solution.
Jose J. Muñoz   +2 more
doaj   +3 more sources

Design of X-Bar Control Chart for Resampling Under Uncertainty Environment [PDF]

open access: goldIEEE Access, 2019
This paper presents the designing of the X-bar control chart using resampling scheme under the uncertainty environment. The necessary measures of the present chart are derived under the neutrosophic system. The neutrosophic average run length (NARL) when
Muhammad Aslam
doaj   +3 more sources

Ensemble Classifier for Recognition of Small Variation in X-Bar Control Chart Patterns [PDF]

open access: goldMachines, 2023
Manufacturing processes have become highly accurate and precise in recent years, particularly in the chemical, aerospace, and electronics industries. This has attracted researchers to investigate improved procedures for monitoring and detection of small ...
Waseem Alwan   +4 more
doaj   +4 more sources

A Unifying Concept of X Chart and X-Bar Chart when Subgroup Sizes are Equal

open access: greenJournal of Mathematical and Fundamental Sciences, 2019
X chart and X-bar chart are usually seen as two techniques in SPC with different concepts. In this paper we propose two propositions as a unifying concept for those two charts; one for start-up stage and the other for process control for future ...
Maman A. Djauhari
doaj   +2 more sources

Monitoring Using X-Bar Control Chart Using Neutrosophic-Based Generalized Multiple Dependent State Sampling with Application [PDF]

open access: goldInternational Journal of Computational Intelligence Systems, 2022
In this article, an enhanced X-bar control chart using generalized multiple dependent state (GMDS) sampling under neutrosophic statistics is presented.
Nasrullah Khan   +2 more
doaj   +2 more sources

X-bar Chart Based on Six Sigma to Continual Quality Improvement: Implementation on Oil Vapor Pressure Characteristic, at Yemen's Aden Oil Refinery

open access: diamondمجلة العلوم التربوية والدراسات الإنسانية سلسلة الآداب والعلوم التربوية والإنسانية والتطبيقية, 2022
     لطالما كان إنتاج منتجات عالية الجودة مع إبقائها في متناول الجميع تحديًا في الاسواق التنافسية الحالية. نتيجة لذلك، يبحث المنتجون بنشاط عن طرق لخفض التكاليف وزيادة الكفاءة. مخطط التحكم هو الأداة الأكثر استخدامًا في الممارسات العملية للحفاظ على التحكم
DR. AHMED M.G AL-RABASI   +3 more
doaj   +3 more sources

A New X-Bar Control Chart for Using Neutrosophic Exponentially Weighted Moving Average [PDF]

open access: goldMathematics, 2019
The existing Shewhart X-bar control charts using the exponentially weighted moving average statistic are designed under the assumption that all observations are precise, determined, and known.
Muhammad Aslam   +2 more
doaj   +2 more sources

Development of robust X-bar charts with unequal sample sizes [PDF]

open access: green, 2022
The traditional variable control charts, such as the X-bar chart, are widely used to monitor variation in a process. They have been shown to perform well for monitoring processes under the general assumptions that the observations are normally distributed without data contamination and that the sample sizes from the process are all equal.
Park, Chanseok   +2 more
openaire   +3 more sources

X-bar control chart for non-normal symmetric distributions

open access: bronzeAdvances in Methodology and Statistics, 2021
In statistical quality control, X-bar control chart is extensively used to monitor a change in the process mean. In this paper, X-bar control chart for non-normal symmetric distributions is proposed. For chosen Student, Laplace, logistic and uniform distributions of quality characteristic, we calculated theoretical distribution of standardized sample ...
Kristina Veljković
openaire   +4 more sources

Economic Statistical Design of integrated X-bar-S control chart with Preventive Maintenance and general failure distribution. [PDF]

open access: goldPLoS ONE, 2013
The application of Preventive Maintenance (PM) and Statistical Process Control (SPC) are important practices to achieve high product quality, small frequency of failures, and cost reduction in a production process. However there are some points that have
Santiago Omar Caballero Morales
doaj   +3 more sources

Home - About - Disclaimer - Privacy