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Article
A new vision of approximate methods for the permutation flowshop to minimise makespan: State-of-the-art and computational evaluation
(Elsevier, 2017)
The permutation flowshop problem is a classic machine scheduling problem where n jobs must be processed on a set of m machines disposed in series and where each job must visit all machines in the same order. Many production ...
Article
Inventory record inaccuracy – The impact of structural complexity and lead time variability
(Elsevier, 2017)
This article presents a rigorous prospective analysis of the impact of Inventory Record Inaccuracy (IRI) on complex multi-echelon Supply Chains (SCs). Specifically, key operational factors (i.e., the magnitude of the error, ...
Article
A beam-search-based constructive heuristic for the PFSP to minimise total flowtime
(Elsevier, 2017)
In this paper we present a beam-search-based constructive heuristic to solve the permutation flowshop scheduling problem with total flowtime minimisation as objective. This well-known problem is NP-hard, and several ...
Article
New approximate algorithms for the customer order scheduling problem with total completion time objective
(Elsevier, 2017-02)
In this paper, we study a customer order scheduling problem where a number of orders, composed of several product types, have to be scheduled on a set of parallel machines, each one capable to process a single product type. ...
Article
Sobre la modernización de los vehículos blindados y su relación con el coste de ciclo de vida
(CISDE, 2017)
La decisión de afrontar un gran programa de adquisiciones para la defensa suele tener muy presente los costes que supone. Si bien en ocasiones tal decisión queda delimitada a la consideración de costes de adquisición, ...
Article
Reduction of permutation flowshop problems to single machine problems using machine dominance relations
(Elsevier, 2017)
The Permutation Flowshop Scheduling Problem with Makespan objective (PFSP-M) is known to be NP-hard for more than two machines, and literally hundreds of works in the last decades have proposed exact and approximate ...
Article
A dynamic opportunistic maintenance model to maximize energy-based availability while reducing the life cycle cost of wind farms
(Elsevier, 2017)
Operations and maintenance costs of the wind power generation systems can be reduced through the implementation of opportunistic maintenance policies at suitable indenture and maintenance levels. These maintenance policies ...
Article
A review and classification of heuristics for permutation flow-shop scheduling with makespan objective
(Taylor & Francis, 2017)
Makespan minimization in permutation flow-shop scheduling is an operations research topic that has been intensively addressed during the last 40 years. Since the problem is known to be NP-hard for more than two machines, ...
Article
Metodología para el análisis de problemas y limitaciones en emprendimientos universitarios
(Universidad Nacional de Colombia, 2017)
Los emprendimientos universitarios se caracterizan por ser una actividad de alto riesgo, debido al elevado número de factores que influyen en su desarrollo, ya sean sociales, económicos o tecnológicos. A estos factores, ...
Article
Order Scheduling with Tardiness Objective: Improved Approximate Solutions
(Elsevier, 2017)
The problem addressed in this paper belongs to the topic of order scheduling, in which customer orders --composed of different individual jobs-- are scheduled so the objective sought refers to the completion times of the ...