Exploració per autor "Ribas Vila, Immaculada"
Ara es mostren els items 23-42 de 68
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Comparing three-step heuristics for the permutation flow shop problem
Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2010-03-03)
Article
Accés restringit per política de l'editorialIn this paper a three steps heuristic for the permutation flow shop problem is proposed. The objective is to minimize the maximum time for completing the jobs, or the makespan. The first two steps are inspired by the NEH ... -
Decisiones en el diseño de redes de logística inversa: propuesta de un modelo de decisión
Ribas Vila, Immaculada; Rubio, Sergio (2013)
Text en actes de congrés
Accés obertSe considera el problema del diseño de las redes de suministro inversa para la recuperación de productos usados, con el objetivo de establecer un modelo que permita configurar la red en función las características del ... -
Due dates for the Taillard’s Benchmark adapted to the parallel flow shop scheduling problem and best solutions
Ribas Vila, Immaculada; Companys Pascual, Ramón (2018-10-25)
Report de recerca
Accés obert -
Efficient constructive procedures for the distributed blocking flowshop scheduling problem
Companys Pascual, Ramón; Ribas Vila, Immaculada (2015)
Text en actes de congrés
Accés obertthe distributed blocking flow shop scheduling problem (DBFSP) allows modeling of the scheduling process in companies with more than one factory, with productive systems configured as flow shop lines where the blocking ... -
Efficient heuristic algorithms for the blocking flow shop scheduling problem with total flow time minimization
Ribas Vila, Immaculada; Companys Pascual, Ramón (2015-05-01)
Article
Accés obertThis paper proposes two constructive heuristics, i.e. HPF1 and HPF2, for the blocking flow shop problem in order to minimize the total flow time. They differ mainly in the criterion used to select the first job in the ... -
Efficient heuristics for the parallel blocking flow shop scheduling problem
Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2017-05-15)
Article
Accés obertWe consider the NP-hard problem of scheduling n jobs in F identical parallel flow shops, each consisting of a series of m machines, and doing so with a blocking constraint. The applied criterion is to minimize the makespan, ... -
El curioso comportamiento del procedimiento de inserción de la heurística NEH en el problema Fm|block|Cmax
Companys Pascual, Ramón; Ribas Vila, Immaculada (2013)
Text en actes de congrés
Accés obertIn this paper it is shown that, in some cases, the insertion pro-cedure of NEH does not improve the solution quality. This fact is observed spe-cially in the NEH-based heuristics that have been proposed in the literature ... -
Epicentre Núm. 9 : butlletí de notícies de l'Institut de Ciències de l'Educació
Llorens García, Ariadna; Quiñones Ruiz, José Miguel; Prat Farran, Joana d'Arc; Ribas Vila, Immaculada (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022-02)
Número de revista
Accés obert -
Estado del arte de la Planificación Colaborativa en la Cadena de Suministro: contexto determinista e incierto
Ribas Vila, Immaculada; Companys Pascual, Ramón (2006-03-01)
Report de recerca
Accés obertEn la economía actual, el resultado de las empresas depende en gran medida del éxito con el que se gestione la colaboración en su Cadena de Suministro (CdS). La globalización actual ha permitido a las empresas tener ... -
Estado del arte de la planificación colaborativa en la cadena de suministro: contexto determinista e incierto
Ribas Vila, Immaculada; Companys Pascual, Ramón (Intangible Capital, 2007-07)
Article
Accés obertLa globalización actual obliga a las empresas y la tecnología actual les permite tener centros de almacenaje y distribución, propios o subcontratados, que pueden estar dispersos geográficamente. La sincronización de los ... -
Explotación de la reversibilidad del problema Fm|prmu|Cmax para mejorar las soluciones de las heurísticas
Companys Pascual, Ramón; Ribas Vila, Immaculada (2009-09-02)
Text en actes de congrés
Accés obert -
Heuristics for the distributed blocking Ffow shop scheduling problem
Ribas Vila, Immaculada; Companys Pascual, Ramón (2016)
Text en actes de congrés
Accés obert -
How effective is the introduction of freight distribution time windows in reducing congestion, externalities and transport costs? The case of Barcelona
Savall Mañó, Maria; Ribas Vila, Immaculada (Elsevier, 2024)
Article
Accés obertThe surge in online purchases coupled with rapid home delivery has exerted a detrimental impact on cities. Municipal authorities are now endeavouring to implement measures to mitigate the externalities stemming from this ... -
Hybrid metaheuristics for the tardines blocking flow shop problem
Ribas Vila, Immaculada; Companys Pascual, Ramón; Tort-Martorell Llabrés, Xavier (2012-09-04)
Report de recerca
Accés obertThis paper proposes an Iterated Local Search (ILS) procedure and an Iterated Greedy (IG) algorithm, which are both combined with a variable neighbourhood search (VNS), for dealing with the flow shop problem with blocking, ... -
Improvement tools for NEH based heuristics on permutation and blocking flow shop scheduling problems
Companys Pascual, Ramón; Ribas Vila, Immaculada; Mateo Doll, Manuel (Springer, 2010-12-01)
Capítol de llibre
Accés restringit per política de l'editorialIn this paper, two tools to improve the performance of the NEH-based heuristics for the flow shop problem with and without buffer constraints are proposed. The first tool is the use of the reversibility property of the ... -
Improvement tools for NEH based heuristics on permutation and blocking flow-shop scheduling problems
Companys Pascual, Ramón; Ribas Vila, Immaculada; Mateo Doll, Manuel (2009-09-19)
Text en actes de congrés
Accés restringit per acord de confidencialitatIn this paper, two tools to improve the performance of the NEHbased heuristics for the flow shop problem with and without buffer constraints are proposed. The first tool is the use of the reversibility property of ... -
Is WD0433+270 an iron-core white dwarf?
Catalan, S.; Ribas Vila, Immaculada; Isern Vilaboy, Jordi; García-Berro Montilla, Enrique (PoS - Proceedings of Science, 2007)
Text en actes de congrés
Accés obertWe study a common proper motion pair formed by a white dwarf (WD0433+270) and a mainsequence star (BD+26 730) that apparently has been classified as a member of the Hyades open cluster. Previous studies of the white dwarf ... -
Johnson revisited, ten years later
Companys Pascual, Ramón; Ribas Vila, Immaculada (2009-09-02)
Text en actes de congrés
Accés obert -
Main design factors for shared ride-hailing services from a user perspective
Gilibert Junyent, Mireia; Ribas Vila, Immaculada (2019-08-14)
Article
Accés obertShared ride-hailing transportation is discreetly emerging in cities all over the world with the purpose of decongesting cities, offering a similar comfort and convenience of the private car, and this way, filling the gap ... -
Mapping of service deployment use cases and user requirements for an on-demand shared ride-hailing service: MOIA test service case study
Gilibert Junyent, Mireia; Ribas Vila, Immaculada; Maslekar, Nitin; Rosen, Christian; Siebeneich, Alexander (Elsevier Ltd, 2019-01-01)
Article
Accés obertDemand Responsive Transportation (DRT) is currently growing in our cities as shared ride-hailing services operated by private companies, providing a hybrid service between the bus and the taxi. Like DRT, these new on-demand ...