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Mostrando ítems 111-120 de 191
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Método primal dual para modelos de planificación con costes cóncavos y limitaciones de capacidad
(Universitat Politècnica de Catalunya, 1987)
Este trabajo estudia el problema de planificaci6n de la producci6n representado por un modelo de costes c6ncavos sujeto a limitaciones de capacidad. La relajaci6n lineal del modelo es analizada usando un enfoque primal-dual. ...
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Decision support system for planning telecommunication networks: a case study applied to the Andalusian region
(Palgrave Macmillan, 2001)
Network planning is essential to design real Broadband Integrated Services Digital Networks (B-ISDN). This paper presents an OR application to the design of an optic fibre network for the andalusian region. The economical ...
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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 ...
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On directors’ compensation: a multilevel analysis of Spanish listed companies
(Springer, 2022-01)
This study analyzes the determinants of the annual compensation of directors belonging to the boards of the Spanish companies that constitute the IBEX 35 stock index. We investigate the importance of observed and unobserved ...
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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, ...
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A Multilayer Network Approach for the Bimodal Bus–Pedestrian Line Planning Problem
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
In this paper, we formulate and solve the urban line planning problem considering a multilayer representation of a bimodal transportation network. Classical formulations are usually constructed over a planar network, ...
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Quality grading of returns and the dynamics of remanufacturing
(Elsevier B.V., 2021)
We consider a hybrid manufacturing/remanufacturing system where the returned products (cores) are classified into different quality grades. Each grade requires different remanufacturing operations and thus lead times. ...
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Centralised resource allocation using Lexicographic Goal Programming. Application to the Spanish public university system
(Elsevier, 2022-12)
This paper deals with Data Envelopment Analysis (DEA) in centralised settings in which the operating units belong to the same organisation. In such a scenario, a global system-wide perspective may be adopted as regards ...
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OVAP: A strategy to implement partial information sharing among supply chain retailers
(Elsevier, 2018)
This paper analyses the impact on supply chain performance of adopting different strategies to implement partial information sharing among heterogeneous retailers. Supply chains are modelled using a multi-agent systems ...
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Analysis of the evolution of the Spanish labour market through unsupervised learning
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Unemployment in Spain is one of the biggest concerns of its inhabitants. Its unemployment rate is the second highest in the European Union, and in the second quarter of 2018 there is a 15.2% unemployment rate, some 3.4 ...