Correction: Martínez-Reyes et al. Supplying Personal Protective Equipment to Intensive Care Units during the COVID-19 Outbreak in Colombia. A Simheuristic Approach Based on the Location-Routing Problem. Sustainability 2021, 13, 7822

Andrés Martínez-Reyes; Carlos L. Quintero-Araújo; Elyn L. Solano-Charris

doi:10.3390/su141811497

,

and

Operations and Supply Chain Management Research Group, Escuela Internacional de Ciencias Económicas y Administrativas, Universidad de La Sabana Km 7 Autopista Norte de Bogotá, D.C., Chía 250001, Colombia

^*

Author to whom correspondence should be addressed.

Sustainability2022, 14(18), 11497;https://doi.org/10.3390/su141811497

Version Notes

Order Reprints

The authors would like to make the following corrections to the published paper [1]. The changes are as follows:

1.: Replacing Equation (1):

\min z = \sum_{w \in W} O_{w} Y_{w} + \sum_{k \in K} \sum_{a \in δ^{+} (M)} C_{a} f_{a k} + \sum_{k \in K} E [R_{k}]

(1)

with

\min z = \sum_{w \in W} O_{w} Y_{w} + \sum_{k \in K} \sum_{a \in δ^{+} (M)} U f_{a k} + \sum_{k \in K} E [R_{k}]

(1)

2.: Replacing Equation (2):

\min z = \sum_{w \in W} O_{w} Y_{w} + \sum_{k \in K} \sum_{a \in δ^{+} (M)} C_{a} f_{a k} + \sum_{k \in K} E [R_{k}]

(2)

with

R_{k} = \{\begin{array}{l} \sum_{a \in A}^{} C_{a} f_{a k} & If \sum_{i \in I} \sum_{a \in δ^{-} (i)} E [D_{i}] f_{a k} \leq (1 - % S S) h \\ \sum_{a \in A} C_{a} f_{a k} + ρ & otherwise \end{array}

(2)

3.: Replacing line 185 on page 4:

“(iii) the cost of vehicles, and (iv) the corrective cost of a solution”.

with

“(iii) the cost of vehicles -U-, and (iv) the corrective -ρ- cost of a solution”.

The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. The original publication has also been updated.

Reference

Martínez-Reyes, A.; Quintero-Araújo, C.L.; Solano-Charris, E.L. Supplying Personal Protective Equipment to Intensive Care Units during the COVID-19 Outbreak in Colombia. A Simheuristic Approach Based on the Location-Routing Problem. Sustainability 2021, 13, 7822. [Google Scholar] [CrossRef]

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.

© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Correction: Martínez-Reyes et al. Supplying Personal Protective Equipment to Intensive Care Units during the COVID-19 Outbreak in Colombia. A Simheuristic Approach Based on the Location-Routing Problem. Sustainability 2021, 13, 7822

Reference

Article Metrics

Citations

Article Access Statistics