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Table 2 Iterations of the proposed searching algorithm for \(t_{1}^{*}\) for the extended EMQ model 2

From: Producer–retailer integrated EMQ system with machine breakdown, rework failures, and a discontinuous inventory issuing policy

β

Step #

\(t_{{1{\text{U}}}}^{*}\)

u L = \(e^{{ - \beta t_{{1{\text{U}}}} }}\)

\(t_{{1{\text{L}}}}^{*}\)

u U = \(e^{{ - \beta t_{{1{\text{L}}}} }}\)

Difference between \(t_{{1{\text{U}}}}^{*}\) and \(t_{{1{\text{L}}}}^{*}\)

[U] E[TCU(\(t_{{1{\text{U}}}}^{*}\))]

[L] E[TCU(\(t_{{1{\text{L}}}}^{*}\))]

Difference between [U] and [L]

0.5

Initial

0.0000

1.0000

 

1st

0.2848

0.8673

0.1951

0.9071

0.0898

$11,642.46

$11,481.07

$161.39

 

2nd

0.2086

0.9009

0.2046

0.9027

0.0040

$11,477.72

$11,477.28

$0.44

 

3rd

0.2052

0.9025

0.2051

0.9026

0.0001

$11,477.28

$11,477.27

$0.01

 

4th

0.2051

0.9025

0.2051

0.9025

0.0000

$11,477.27

$11,477.27

$0.00