Results 81 to 90 of about 3,958 (193)

A Study Of Exponentially Weighted Moving Average (Ewma) Methodologies [PDF]

open access: yes, 1993
Tesis ini adalah berkenaan dengan penggunaan carta PBBE, suatu alternatif kepada carta Shewhart dan Carta Hasil Tambah Longgokan (HTL), untuk mengesan perubahan yang berlaku di dalam suatu proses.
Lee, Toh Tong
core  

The Enhanced EWMA Control Chart with Autocorrelation

open access: yesJurnal Teknologi, 2014
Control charts are effective tool with regard to improving process quality and productivity, Shewhart control charts are efficiently good at detecting large shifts in a given process but very slow in detecting small and moderate shifts, such problem could be tackled through design of sensitizing rules.
Farouk, Abbas Umar, Mohamad, Ismail
openaire   +2 more sources

EWMA Chart and Measurement Error [PDF]

open access: yes
Measurement error is a usually met distortion factor in real-world applications that influences the outcome of a process. In this paper, we examine the effect of measurement error on the ability of the EWMA control chart to detect out-of-control ...
Maravelakis, Petros   +2 more
core   +1 more source

Designing an efficient adaptive EWMA model for normal process with engineering applications

open access: yesAin Shams Engineering Journal
Stability in process parameters is required to ensure the quality of the finished item. Control charts, as one of the critical parts of statistical process monitoring (SPM), have seen widespread use across many disciplines for detecting and responding to
Zahid Rasheed   +5 more
doaj   +1 more source

Control charts for monitoring the mean of AR(1) data [PDF]

open access: yes
New product development is one of the most powerful but difficult activities in business. It is also a very important factor affecting final product quality. There are many techniques available for new product development.
Wieringa, J.E.
core   +1 more source

Multivariate Statistical Process Control Charts and the Problem of Interpretation: A Short Overview and Some Applications in Industry [PDF]

open access: yes
Woodall and Montgomery in a discussion paper, state that multivariate process control is one of the most rapidly developing sections of statistical process control.
Bersimis, Sotiris   +2 more
core   +1 more source

An application of control charts in manufacturing industry [PDF]

open access: yes, 2012
The range control chart and the X bar control chart are the well known and the most popular tools for detecting out- of-control signals in the Statistical Quality Control (SQC). The control charts has shown his worth in the manufacturing industry.
Muhammad, Faqir, Riaz, Muhammad
core  

Monitoring of the BTA Deep Hole Drilling Process Using Residual Control Charts [PDF]

open access: yes
Deep hole drilling methods are used for producing holes with a high lengthto- diameter ratio, good surface finish and straightness. The process is subject to dynamic disturbances usually classified as either chatter vibration or spiralling. In this work,
Hering, Franz   +3 more
core  

COMPARISON OF EXPONENTIALLY WEIGHTED MOVING AVERAGE CONTROL CHART WITH HOMOGENEOUSLY WEIGHTED MOVING AVERAGE CONTROL CHARTS AND ITS APPLICATION

open access: yesBarekeng
The Exponentially Weighted Moving Average (EWMA) control chart is a widely used memory-type control chart known for detecting small shifts in process means.
Erna Tri Herdiani   +1 more
doaj   +1 more source

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