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RiuNet. Repositorio institucional de la Universitat de Valencia (102.815 recursos)

RiuNet es el Repositorio Institucional de la Universitat Politècnica de València, gestionado por la Biblioteca, cuyo objetivo es ofrecer acceso en Internet a la producción científica, académica y corporativa de la comunidad universitaria con la finalidad de aumentar su visibilidad y hacerla accesible y preservable.

International Journal of Production Management and Engineering

Mostrando recursos 1 - 20 de 52

  1. What we know and do not know about organizational resilience

    Ruiz-Martin, Cristina; López-Paredes, Adolfo; Wainer, Gabriel
    [EN] We present a literature review about organizational resilience, with the goal of identifying how organizational resilience is conceptualized and assessed. The two research questions that drive the review are: (1) how is organizational resilience conceptualized? and (2) how is organizational resilience assessed? We answer the first question by analysing organizational resilience definitions and the attributes or characteristics that contribute to develop resilient organizations. We answer the second question by reviewing articles that focus on tools or methods to measure organizational resilience. Although there are three different ways to define organizational resilience, we found common ideas in the definitions. We...

  2. Designing an Environmental Zone in a Mediterranean City to Support City Logistics

    Ros-McDonnell, Lorenzo; de-la-Fuente-Aragon, María Victoria; Ros-McDonnell, Diego; Cardós Carboneras, Manuel
    [EN] European cities are facing enormous challenges in accessibility and livability terms due to several European directives, which are compulsory in the mid/long term, traffic congestion levels are still increasing, and air pollution and noise disturbs citizens’ lives. This work presents the study carried out in a Mediterranean city to define an Environmental Zone with traffic restrictions for vehicles in the historical centre of the city of Cartagena (Spain) by exploring different urban logistics measures to tackle main problems caused by freight deliveries and pickups in the city centre. These solutions aimed to enhance the efficiency of vehicles, and to...

  3. Derailed locomotive? Petrobras investments and economic growth in Brazil

    Yabiko, Raíssa Fernandes; Bone, Rosemarie Bröker
    [EN] Petrobras is the largest firm in Brazil and one of the largest in the world. Its investment plans are among the biggest in the oil and gas industry, focused in Brazil and on E&P. Petrobras is responsible for a large share of gross capital formation and gross domestic product (GDP) growth in the country. The correlation between its investments and the country investment and GDP growth is above 0.8 and shows the dependency of the economy to Petrobras activity. At the same time, as a state enterprise it has been a tool of macroeconomic policy. In the 2010´s its...

  4. Clustering product innovators: a comparison between conventional and green product innovators

    Pons, Marc; Bikfalvi, Andrea; Llach, Josep
    [EN] This paper aims at analysing firms implementing new products. Based on a cluster analysis, three types of manufacturers have been identified representing different types of product innovators according to the competitiveness factors important for their business, environmentally sensitive new products, and a performance indicator, such as the share of turnover from new products.

  5. A MILP for multi-machine injection moulding sequencing in the scope of C2NET Project

    Andrés, Beatriz; Sanchis, Raquel; Poler, Raúl; Díaz-Madroñedo, Manuel; Mula, Josefa
    [EN] The goal of C2NET European H2020 Funded Project is the creation of cloud-enabled tools for supporting the SMEs supply network optimization of manufacturing and logistic assets based on collaborative demand, production and delivery plans. In the scope of C2NET Project, and particularly in the Optimisation module (C2NET OPT), this paper proposes a novel holistic mixed integer linear programing (MILP) model to optimise the injection sequencing in a multi-machine case. The results of the MILP will support the production planner decision-making process in the calculation of (i) moulds setup in certain machines, and (ii) the amount of products to produce...

  6. Vehicle Routing and Scheduling Problem for a multi-period, multi-perishable product system with time window: A Case study

    Rashidi Komijan, Alireza; Delavari, Danial
    [EN] The well-known Vehicle Routing Problem (VRP) is to find proper sequence of routes in order to minimize transportation costs. In this paper, a mixed-integer programming model is presented for a food distributer company and the model outputs are to determine the optimal routes and amount of pickup and delivery. In the objective function, the costs of transportation, holding, tardiness and earliness are considered simultaneously. The proposed model with respect to real conditions is multi-period and has two different time periods: one for dispatching vehicles to customers and suppliers and the other for receiving customers’ orders. Time window and split...

  7. Stochastic multi-period multi-product multi-objective Aggregate Production Planning model in multi-echelon supply chain

    Khalili-Damghani, Kaveh; Shahrokh, Ayda; Pakgohar, Alireza
    [EN] In this paper a multi-period multi-product multi-objective aggregate production planning (APP) model is proposed for an uncertain multi-echelon supply chain considering financial risk, customer satisfaction, and human resource training. Three conflictive objective functions and several sets of real constraints are considered concurrently in the proposed APP model. Some parameters of the proposed model are assumed to be uncertain and handled through a two-stage stochastic programming (TSSP) approach. The proposed TSSP is solved using three multi-objective solution procedures, i.e., the goal attainment technique, the modified ε-constraint method, and STEM method. The whole procedure is applied in an automotive resin and...

  8. Approach of the Two-way Influence Between Lean and Green Manufacturing and its Connection to Related Organisational Areas

    Salvador, Rodrigo; Piekarski, Cassiano Moro; Francisco, Antonio Carlos de
    [EN] Initiatives toward Lean and Green Manufacturing are given mainly due to organisational response to current market’s economic and environmental pressures. This paper, therefore, aims to present a brief discussion based on a literature review of the potential two-way influence between Lean and Green Manufacturing and its role on the main organisational areas with a closer relationship to such approaches, which were observed to be more extensively discussed in the literature. Naturally lean practises seem more likely to deploy into green outcomes, though the other way around can also occur. There is some blur on the factual integration of both...

  9. Aligning Organizational Pathologies and Organizational Resilience Indicators

    Morales Allende, Manuel; Ruiz-Martin, Cristina; Lopez-Paredes, Adolfo; Perez Ríos, Jose Manuel
    [EN] Developing resilient individuals, organizations and communities is a hot topic in the research agenda in Management, Ecology, Psychology or Engineering. Despite the number of works that focus on resilience is increasing, there is not completely agreed definition of resilience, neither an entirely formal and accepted framework. The cause may be the spread of research among different fields. In this paper, we focus on the study of organizational resilience with the aim of improving the level of resilience in organizations. We review the relation between viable and resilient organizations and their common properties. Based on these common properties, we defend...

  10. A Column Generation for the Heterogeneous Fixed Fleet Open Vehicle Routing Problem

    Yousefikhoshbakht, Majid; Dolatnejad, Azam
    [EN] This paper addressed the heterogeneous fixed fleet open vehicle routing problem (HFFOVRP), in which the vehicles are not required to return to the depot after completing a service. In this new problem, the demands of customers are fulfilled by a heterogeneous fixed fleet of vehicles having various capacities, fixed costs and variable costs. This problem is an important variant of the open vehicle routing problem (OVRP) and can cover more practical situations in transportation and logistics. Since this problem belongs to NP-hard Problems, An approach based on column generation (CG) is applied to solve the HFFOVRP. A tight integer...

  11. Integrated production-distribution planning optimization models: A review in collaborative networks context

    Andrés Navarro, Beatriz; Sanchis Gisbert, Raquel; Lamothe, Jaques; Saari, Leila; Hauser, Frederic
    [EN] Researchers in the area of collaborative networks are more and more aware of proposing collaborative approaches to address planning processes, due to the advantages associated when enterprises perform integrated planning models. Collaborative production-distribution planning, among the supply network actors, is considered a proper mechanism to support enterprises on dealing with uncertainties and dynamicity associated to the current markets. Enterprises, and especially SMEs, should be able to overcome the continuous changes of the market by increasing their agility. Carrying out collaborative planning allows enterprises to enhance their readiness and agility for facing the market turbulences. However, SMEs have limited access...

  12. Appropriate criteria set for personnel promotion across organizational levels using analytic hierarchy process (AHP)

    Castillo, Charles Noven; Degamo, France Kevin; Gitgano, Faith Therese; Loo, Louie Alfred; Pacaanas, Shaira Mae; Toroy, Nika; Ocampo, Lanndon; Ocampo, Christine Omela; Sia, Leahlizbeth
    [EN] Currently, there has been limited established specific set of criteria for personnel promotion to each level of the organization. This study is conducted in order to develop a personnel promotion strategy by identifying specific sets of criteria for each level of the organization. The complexity of identifying the criteria set along with the subjectivity of these criteria require the use of multi-criteria decision-making approach particularly the analytic hierarchy process (AHP). Results show different sets of criteria for each management level which are consistent with several frameworks in literature. These criteria sets would help avoid mismatch of employee skills and...

  13. An Effective Branch-and-cut algorithm in Order to Solve the Mixed Integer Bi-level Programming

    Rahmani, Arsalan; Yousefikhoshbakht, Majid
    [EN] In this paper, a new branch-and-cut algorithm for mixed integer bi-level programming is proposed. For achieving this purpose, a historical perspective of the development of enumeration methods in the field of bi-level linear programming is considered. Then, we present some obstacles for using branch and bound method based on them, and an algorithm is developed to solve for mixed integer bi-level problem. Finally, we use a preference function to determine the choice of branching and specialized cuts in a branch and cut tree. Computational results are reported and compared favorably to those of previous methods and then implications discussed....

  14. Adapting transport modes to supply chains classified by the uncertainty supply chain model: A case study at Manaus Industrial Pole

    Oliveira, Fabiana Lucena; Oliveira Junior, Aristides da Rocha; Bessa Rebelo, Luiza M.
    [EN] This paper discusses transport modes supporting Uncertainty Supply Chain Model (USCM) in the case of Manaus Industrial Pole (PIM), an industrial cluster in the Brazilian Amazon that hosts six hundred factories with diverse logistics and supply chain managerial strategies. USCM (Lee, 2002; Fisher, 1997)develops a dot matrix classification of the supply chains considering several attributes (e.g., agility, cost, security, responsiveness) and argues that emergent economies industrial clusters, in the effort to keep attractiveness for technological frontier firms, need to adapt supply chain strategies according to USCM attributes. The paper takes a further step, discussing which transport modes are suitable...

  15. A hybrid algorithm for flexible job-shop scheduling problem with setup times

    Azzouz, Ameni; Ennigrou, Meriem; Ben Said, Lamjed
    [EN] Job-shop scheduling problem is one of the most important fields in manufacturing optimization where a set of n jobs must be processed on a set of m specified machines. Each job consists of a specific set of operations, which have to be processed according to a given order. The Flexible Job Shop problem (FJSP) is a generalization of the above-mentioned problem, where each operation can be processed by a set of resources and has a processing time depending on the resource used. The FJSP problems cover two difficulties, namely, machine assignment problem and operation sequencing problem. This paper addresses...

  16. Which of DEA or AHP can best be employed to measure efficiency of projects?

    Sánchez, Marisa Analia
    [EN] This paper compares Analytic Hierarchy Process (AHP) and Data Envelopment Analysis (DEA) approaches for monitoring projects, in order to determine their performance in terms of economic, environmental and social organizational goals. This work is founded on an existing methodology to select and monitor projects based on DEA, and discusses modifications and additions arising from using AHP. The proposal is applied to a real case. The results indicate that AHP constitutes an insightful approach in situations requiring a modelling of managerial preferences regarding the relative importance of organizational goals.

  17. Total Quality Management implementation in Greek businesses: Comparative assessment 2009-2013

    Vranaki, Martha; Vranakis, Stergios; Sarigiannidis, Lazaros
    [EN] The competition in the Greek manufacturing sector has become very intense and the need for businesses to survive, under these very difficult conditions, forces them to find new ways to increase their profits, but also to attract new customers and to retain old.  A necessary condition for long-term business survival is to maintain a high product quality level. The implementation of Total Quality Management (TQM) approach is a key factor to achieve this goal.The main objective of this research is to identify the current situation as far as the implementation of TQM by Greek manufacturing firms, and finally to...

  18. Quantitative assessment of sustainable city logistics

    Grosso-delaVega, Rafael; Muñuzuri, Jesus
    [EN] The aim of this paper is to seek an answer to an specific question: how to make city logistics sustainable? This question in principle has no specific answer. By contrast, it could be answered in many and varied ways. Behind the search for some of these answers lies the development of a roadmap which this work aims to present. The research lines, the theoretical framework and methodology of the roadmap will be explained. Although the current status of the roadmap, its duration and timing still need to be completed, the main facts, as well as the results obtained to date and the expected...

  19. Fuzzy maintenance costs of a wind turbine pitch control device

    Carvalho, Mariana; Nunes, Eusébio; Telhada, José
    [EN] This paper deals with the problem of estimation maintenance costs for the case of the pitch controls system of wind farms turbines. Previous investigations have estimated these costs as (traditional) “crisp” values, simply ignoring the uncertainty nature of data and information available. This paper purposes an extended version of the estimation model by making use of the Fuzzy Set Theory. The results alert decision-makers to consequent uncertainty of the estimations along with their overall level, thus improving the information given to the maintenance support system

  20. A robust evaluation of sustainability initiatives with analytic network process (ANP)

    Ocampo, Lanndon; Ocampo, Christine Omela
    [EN] This paper presents a methodology on evaluating sustainable manufacturing initiatives using analytic network process (ANP) as its base.The evaluation method is anchored on the comprehensive sustainable manufacturing framework proposed recently in literature. A numerical example that involves an evaluation of five sustainable manufacturing initiatives is shown in this work. Results show that sustainable manufacturing implies enhancing customer and community well-being by means of addressing environmental issues related to pollution due to toxic substances, greenhouse gas emissions and air emissions. To test the robustness of the results, two approaches are introduced in this work: (1) using Monte Carlo simulation and...

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