Sentence examples for a process shift from inspiring English sources

A process shift is declared if CUSUM t) exceeds the upper bound k∗σ, σ being the standard deviation of the process Y i).

The design of quality control charts is normally carried out considering a process shift size that is considered important to be detected.

This paper proposes two optimization algorithms for the RS-γ charts, i.e. by minimizing (i) the average run length (ARL) for a deterministic shift size and (ii) the expected ARL over a process shift domain.

For a negatively skewed distribution, as the benefits are not remarkable, designs can be made based on a single process shift instead of using the shift distribution.

Optimization of the above Eq. (6) for finding the optimal control chart parameters is considered in the present economic design of control chart problem with a known process shift distribution.

The control chart designs obtained using a distribution for process shift and the designs with a single process shift based on the average of the extreme values of shift parameters have been compared.

Finally, the percentage of cost reduction due to the consideration of shift distribution over a single parameter for process shift can be calculated as: The cost values obtained for the designs under consideration are shown in the Table 6.

The present work deals with finding the optimal control chart design when the process shift follows a distribution within a range of values.

In the present work, for a given assignable cause, the process shift is considered to follow a probability distribution which can represent different situations.

This procedure treats the process shift as a fuzzy number with a given membership function, and takes a range of values from the fuzzy cut set for possible shifts to implement the chart design.

Earlier designs relied on the use of constant process shift for a single assignable cause.