Ara es mostren els items 1-15 de 15

  • A MILP scheduling model for multi-stage batch plants 

    Kopanos, Georgios; Puigjaner Corbella, Lluís (Elsevier, 2009-06-15)
    Comunicació de congrés
    Accés obert
    In the current work, a new precedence-based mixed integer linear programming (MILP) scheduling framework, based on a continuous-time representation, is developed for the scheduling in multi-stage batch plants. Advantages ...
  • Costs for rescheduling actions: a critical issue for reducing the gap between scheduling theory and practice 

    Kopanos, Georgios; Capón García, Elisabet; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (2008-11-19)
    Article
    Accés restringit per política de l'editorial
    Rescheduling programmed tasks, when an unexpected event occurs, may affect the smooth operation of the plant if the initial schedule is not taken into account. This work addresses the penalty incurred by rescheduling actions ...
  • Efficient mathematical frameworks for detailed production scheduling in food processing industries 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (Pergamon Press, 2012)
    Article
    Accés restringit per política de l'editorial
    The production scheduling of a real-world multistage food process is considered in this work. An efficient mixed integer programming (MIP) continuous-time model is proposed to address the production problem under study. ...
  • MIP-based decomposition strategies for large-scale scheduling problems in multiproduct multistage batch plants: A benchmark scheduling problem of the pharmaceutical industry 

    Kopanos, Georgios; Méndez, Carlos Alberto; Puigjaner Corbella, Lluís (Elsevier, 2010-06-16)
    Article
    Accés restringit per política de l'editorial
    An efficient systematic iterative solution strategy for solving real-world scheduling problems in multiproduct multistage batch plants is presented. Since the proposed method has its core a mathematical model, two alternative ...
  • Optimal production scheculing and lost-sizing in yogurt production lines 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2010)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The lot-sizing and production scheduling problem in a real-life multi-product yoghurt production line is addressed. A new discrete/continuous time representation mixedinteger linear programming model, based on the definition ...
  • Optimal production scheduling and lot-sizing in diary plants: the yogurt production line 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (American Chemical Society (ACS), 2009-12-04)
    Article
    Accés restringit per política de l'editorial
    The lot-sizing and production scheduling problem in a multiproduct yogurt production line of a real-life dairy plant is addressed in this work. A new mixed discrete/ continuous-time mixed-integer linear programming model, ...
  • Production planning and scheduling of parallel continuous processes with product families 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Maravelias, Christos T. (American Chemical Society (ACS), 2011)
    Article
    Accés obert
    The goal of this paper is the development of a mixed integer programming formulation for the production planning and scheduling of parallel (single-stage) continuous processes in the presence of sequence-dependent switchover ...
  • Production scheduling in multiproduct multistage semicontinuous food processes 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (American Chemical Society (ACS), 2011-04-10)
    Article
    Accés restringit per política de l'editorial
    This works presents a novel mixed-integer programming framework and a solution strategy for the optimal production scheduling of multiproduct and multistage food process industries, such as ice-cream production facilities, ...
  • Resource-constrained production planning in semicontinuous food industries 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (Pergamon Press, 2011-12-14)
    Article
    Accés restringit per política de l'editorial
    The resource-constrained production planning problem in semicontinuous multiproduct food industries is addressed. In particular, the case of yogurt production, a representative food process, in a real-life dairy facility ...
  • Scheduling and lot-sizing in the dairy industry: the yoghurt production case 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2009-11-08)
    Comunicació de congrés
    Accés obert
    In this work, a continuous-time Mixed-Integer Linear Programming model (MILP) is developed for the short-term scheduling and lot-sizing problem in a multi-product yoghurt production line of a real-life dairy plant. The ...
  • Short-term scheduling in multi-stage batch plants through Lagrangean decomposition. 

    Kopanos, Georgios; Lainez Aguirre, José Miguel; Puigjaner Corbella, Lluís (2009-11-08)
    Comunicació de congrés
    Accés obert
    In this work, a continuous-time Mixed-Integer Linear Programming (MILP) model for the short-term scheduling in multi-stage batch plants is used. The MILP model accounts for ready unit times, release order times, ...
  • Simultaneous production and logistics operations planning in semicontinuous food industries 

    Kopanos, Georgios; Puigjaner Corbella, Lluís; Georgiadis, Michael C. (2012)
    Article
    Accés restringit per política de l'editorial
    The production and logistics operations planning in real-life single- or multi-site semicontinuous food industries is addressed in this work. A discrete/continuous-time mixed integer programming model, based on the definition ...
  • Supply chain design considering operational level details 

    Lainez Aguirre, José Miguel; Kopanos, Georgios; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (2009-11-08)
    Comunicació de congrés
    Accés obert
    In this paper we apply attainable region approach to the integration of SC hierarchical levels. The main idea behind this kind of framework is to find a new set of constraints that adequately represent the scheduling ...
  • Techniques for the efficient solution of Large-scale production scheduling & planning problems in the process industries 

    Kopanos, Georgios (Universitat Politècnica de Catalunya, 2011-04-14)
    Tesi
    Accés obert
    Nowadays, every company seeks to optimize its Supply Chain (SC) in response to competitive pressures or to acquire advantage of new flexibility in the restrictions on world trade. The process systems engineering research ...
  • Towards an ontological infrastructure for chemical batch process management 

    Muñoz Mata, Edrisi; Kopanos, Georgios; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluís (Elsevier, 2009)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Chemical batch process management, regardless of the level where its analysis is focused (such as pre-formulation and new process development, supply chain management, scheduling, process control, fault analysis, etc.) ...