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Mostrando ítems 1-10 de 15
Artículo
Digital twins in condition-based maintenance apps: A case study for train axle bearings
(Elsevier, 2023-10)
Digital Twins (DTs) are gaining popularity in the context of the fourth industrial revolution to replicate physical equipment and systems in the digital world. DTs promise increased productivity and sustainable performance ...
Artículo
An ACS-based memetic algorithm for the heterogeneous vehicle routing problem with time windows
(Elsevier, 2020-11)
This paper presents a solution methodology to solve the heterogeneous vehicle routing problem with time windows (HVRPTW). This problem appears when a limited fleet of vehicles, characterized by different capacities, fixed ...
Artículo
Design and Assessment of an Urban Circular Combined Truck–Drone Delivery System Using Continuum Approximation Models and Integer Programming
(MDPI, 2022-10)
The analysis of tandem truck–drone delivery systems has recently attracted the attention of the research community, mainly focused on extending classical operational research problems such as the multiple traveling ...
Artículo
The implications of batching in the bullwhip effect and customer service of closed-loop supply chains
(Elsevier, 2022-02)
Batching is a well-known cause of the bullwhip effect. Despite being very common in many industries to leverage economies of scale, it has been little explored due to its nonlinear complexity. This work examines how ...
Artículo
An optimization approach for designing routes in metrological control services: a case study
(Springer, 2018)
This paper is the first to tackle the problem of designing routes in service companies that are responsible for the metrological control of measuring equipments at customer sites. This real-world problem belongs to the ...
Artículo
The heterogeneous vehicle routing problem with time windows and a limited number of resources
(Elsevier, 2020-09)
This paper introduces the heterogeneous vehicle routing problem with time windows and a limited number of resources (HVRPTW-LR), a practical extension of the classical vehicle routing problem in which routes to be designed ...
Artículo
Skill requirements and labour polarisation: an association analysis based on Polish online job offers
(Elsevier, 2022-10)
This paper uses the methodological scheme of contingency tables to explore polarisation in the Polish labour market. We use a large database of online job offers published on selected Polish job portals in the period ...
Artículo
Simulating dynamic RUL based CBM scheduling. A case study in the railway sector
(Elsevier, 2023-06)
This paper uses continuous time computer simulation tools to analyze the maintenance scheduling problem of a fleet of assets that is subjected to a CBM (Condition-Based Maintenance) program for critical components under a ...
Artículo
The Permutation Flow Shop Scheduling Problem with Human Resources: MILP Models, Decoding Procedures, NEH-Based Heuristics, and an Iterated Greedy Algorithm
(MDPI, 2022-09-22)
In this paper, we address the permutation flow shop scheduling problem with sequence-dependent and non-anticipatory setup times. These setups are performed or supervised by multiple servers, which are renewable secondary ...
Artículo
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, ...