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Rönnqvist, Mikael

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Rönnqvist

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Mikael

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Université Laval. Département de génie mécanique

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Résultats de recherche

Voici les éléments 1 - 10 sur 36
  • PublicationRestreint
    Tactical and operational harvest planning
    (Springer, 2014) Marques, Alexandra S.; Rönnqvist, Mikael; Audy, Jean-François.; D'Amours, Sophie
    The chapter focuses on the forest management decisions undertaken by the private industrial forestland owners concerning medium- and short-term forest planning. Firstly, the scope of forest tactical and operational planning is bounded by comparison with strategic planning as presented in this chapter and with the flow and transportation problems as they are presented in Chap. 9. Then, the chapter describes singular tactical and operational harvest planning decision problems, with emphasis on its specific business decisions as well as the modelling and solution approaches often found in the literature. The problems covered include: scheduling of harvesting operations, machine system/team assignment, harvest sequencing, harvest service adjudication, extraction of the logs, bucking & sorting strategies. The chapter further addresses integrated planning problems, distinguishing between problems with anticipation decisions, used to accommodate the impact on/from other planning problems, and fully integrated problems with more than one type of business decisions.
  • PublicationRestreint
    Toward decision theater design for community forest management & planning : the case of Québec
    (2016-08-21) Rönnqvist, Mikael; Boukherroub, Tasseda; D'Amours, Sophie
    A generic framework for designing decision theaters (DTs) is proposed. The implementation of this framework is illustrated on community forest management in the province of Québec. In particular, we develop the conceptual design of an integrated Forest Community Decision Support System (FC-DSS). FC-DSS aims at supporting complex forest management planning that involves governmental planners and multiple forest users.
  • PublicationRestreint
    Developing training for industrial wood supply management
    (Forest products society, 2014-09-16) Fjeld, Dag; Marier, Philippe; Rönnqvist, Mikael; Eriksson, Ljusk Ola; Lemieux, Sébastien; Frisk, Mikael; D'Amours, Sophie
    An understanding of supply chain management is a prerequisite for efficient supply operations. This paper presents the structure of training currently used in Sweden to prepare master’s-level foresters for managing wood supply operations. Based on a basic framework of professional tasks, eight key learning outcomes are targeted; one focuses on raw material requirements, three on securing supply, three on enabling delivery, and one on control and coordination. Sixteen exercises are used to meet the eight learning outcomes. An overview of the exercises is presented as well as the pedagogical approach used. Current training is focused on developing student understanding of the industrial context as well as competences and skills required to solve typical professional tasks. The paper concludes with a discussion of further development opportunities including a coupling of tasks and learning outcomes with applicable operations research methodology.
  • PublicationAccès libre
    Business models for collaborative planning in transportation : an application to wood products
    (Association for information systems, 2006) Rönnqvist, Mikael; Audy, Jean-François.; D'Amours, Sophie
    In this paper, we propose a framework to describe collaboration in transportation. Then, we discuss the strategic, tactical, operational and real-time transportation planning decisions and raise issues about implementing collaborative decision processes. Also, we provide a literature review of transport decision-support systems that use collaborative planning in the wood fiber flow chain in forestry. Finally, we propose a typology of different business models associated with collaboration in transport.
  • PublicationRestreint
    Special issue on supply chain management and collaborative logistics
    (Oxford Wiley-Blackwell, 2012-08-09) Rönnqvist, Mikael; Bernstein, Fernando; D'Amours, Sophie; Caldentey, Rene
  • PublicationRestreint
    A mixed integer programming model to evaluate integrating strategies in the forest value chain — a case study in the Chilean forest industry
    (National Research Council of Canada, 2015-04-07) Troncoso, Juan; Rönnqvist, Mikael; D'Amours, Sophie; Flisberg, Patrik; Weintraub, Andrés
    When a company is integrated vertically, it can manage and plan its overall value chain in one direct and integrated approach. However in many cases, companies follow a decoupled approach where forests and production plants optimize separately their processes in a supply-driven strategy. In Chile, the two largest forest companies are vertically integrated (i.e., they own forest and mills that produce logs, lumber, plywood, pulp, paper, and bioenergy, etc.). Historically, they have coordinated their value chains using a make-to-stock strategy, for which the forest is the main driver of the value chain activities. In this paper, we propose an integrated planning approach to show the impacts of a demand-driven integration of the value chain in the forest industry. To compare this strategy with the decoupled strategy, we propose a mixed integer programming (MIP) model for the integrated strategy. To illustrate our proposal, we use forest and production information from a Chilean forest company. The decoupled strategy, where the forest and industry planning are planned separately, uses two models. The first model deals with the forest management and harvesting decisions and maximizes the expected net present value (NPV) of logs. In this model, the planning horizon covers one full forest rotation, which in Chile corresponds to about 25 years. The second model maximizes the NPV of the downstream operations for a shorter business planning horizon (five years) constrained by the availability of the logs from the first model. In the integrated approach, all parts of the value chain (forest, transportation, and mills) are driven by final product demand and where the objective is tomaximize the profit of the company (NPV of the entire value chain). The demand is only given for the shorter business planning horizon. The two strategies are evaluated using the MIP model, and NPV is used to determine the best practice. According to the results, the NPV can increase up to 5.0% when the proposed integrated strategy is implemented compared to a decoupled strategy. Moreover, the profit for the business period increases up to 8.5%
  • PublicationRestreint
    Generic mechanisms for coordinating operations and sharing financial benefits in collaborative logistics
    (Springer, 2010-01-01) Rönnqvist, Mikael; Lehoux, Nadia; Audy, Jean-François.; D'Amours, Sophie
    Collaborative logistics is increasingly emerging as a new opportunity for cost reduction through internal and cross chains coordination. This paper presents different coordination mechanisms to support collaborative logistics. These mechanisms are differentiated by their planning function, their sharing approach and the information, decision and financial flows. Often, the logistics planning is run first, and secondly, the sharing is set on the basis of the plan. However, recently, new approaches have been proposed where both the logistics plan and the sharing are optimized simultaneously. Constraints on the financial flows also introduce specificities to the coordination mechanisms and these are described and discussed. Finally, the proposed coordination mechanisms are used to describe a series of research and applied projects in which collaborative logistics has been implemented.
  • PublicationAccès libre
    An educational game with dragons’ den experiences for supply chain management training
    (INFORMS, 2020-03-30) Feng, Yan; Rönnqvist, Mikael; Audy, Jean-François.; D'Amours, Sophie
    This article presents an educational game to engage university and industrial stakeholders in collaborative training for supply chain management courses. The game will help students learn complex supply chain management issues. There are two integrated parts: a case ethod through an industrial case and an activity-based game featuring role plays based on international television shows such as Dragons’ Den in Canada or Shark Tank in the United States. We developed a game framework to illustrate how the game can be prepared and played in classrooms. Although the game is primarily developed for classroom teaching, it may be adapted to other training environments. We have provided two examples to demonstrate how the game can be played as a short game in conference environments. Game experiences and feedback are presented with comments from various game participants. By interacting with stakeholders and tackling a real-world business case, students can better understand stakeholders’ business goals, the importance of supply chain collaboration, and the impacts on supply chain decisions.
  • PublicationRestreint
    Business models for collaborative planning in transportation : an application to wood products
    (Springer, 2007-01-01) Rönnqvist, Mikael; Audy, Jean-François.; D'Amours, Sophie
    Transportation is an important part of the wood fibre flow chain in forestry. There are often several forest companies operating in the same region and coordination between two or more companies is however rare. Latelv, the interest in collaborative transportation planning to support co-ordination has risen since important potential savings have been identified. Even though substantial savings can be realized, it seems that companies' willingness to collaborate is tightly linked to a business model driven by one or many leaders. In this paper, we study a specific business model where one company leads the development of the coalition. The impact of different behaviours of the leading company (i.e. altruistic, opportunistic) is illustrated using an industrial case study of eight forest companies.
  • PublicationAccès libre
    Alternative logistics concepts fitting different wood supply situations and markets
    (Centre interuniversitaire de recherche sur les réseaux d'entreprise la logistique et le transport, 2012-06-01) Rönnqvist, Mikael; Pinotti Moreira, Matheus; Audy, Jean-François.; Westlund, Karin; D'Amours, Sophie; LeBel, Luc
    In this research project, we developed a framework for describing different wood supply chains (WSC) in a generic way and assessing their agility and tailoring capabilities. The studied WSC comprises the planning and execution, at the operational level, of all activities, from selling agreements to delivery of forest products at the mill yard. required by the environment’s uncertainties are compared and discussed. Finally, tailoring capabilities were assessed, based on the location of the decoupling points and their respective order fulfilment cycle time. Two processes were identified, where most of the product differentiation activities along a WSC occur: harvesting with the CTL method and merchandising at a roadside landing using the FT method. The capabilities to tailor product specifications are superior before rather than after one of these processes. Moreover, a typology of assortments according to the level of tailoring is provided and the financial incentive to produce a basket of assortments with a higher level of tailoring is discussed. Finally, when comparing the location of the decoupling point, the agility capabilities and the average order fulfilment cycle time, it was possible to reinforce the results from the literature, which state that supply chain agility is linked to shorter leadtime. The framework is useful to organisations interested in describing their WSC and assessing their agility and tailoring capabilities. By assessing the tailoring and agility capabilities of a WSC, the framework can support an organisation in an exercise of selfdiagnosis that leads to the identification of improvement opportunities to work on. Moreover, by assessing different scenarios for its WSC (e.g. the introduction of new technology, the addition of a new value proposition for a customer), an organisation can anticipate the impacts of changes. Finally, the framework introduced a common vocabulary to be used by researchers and practitioners in different disciplines (e.g. forest engineering, management sciences, industrial engineering). It represents an original attempt to develop a reference model for future research addressing WSCs. These include the purchase or selection of harvesting blocks, harvesting scheduling and execution, as well as transportation scheduling and execution. The framework includes a set of descriptive templates including e.g. a description of the actors, their planning and execution processes, the decoupling points used, together with information, material and financial flows. The proposed framework was applied to case studies in six countries (Canada, Chile, France, Poland, Sweden and USA) where fieldwork allowed us to collect information from 94 local actors and experts. The case studies allowed a list of options (i.e. catalogues) to be generated for different descriptive elements within the framework. We generated catalogues of 16 types of actors involved in a WSC, seven locations of decoupling points, four types of value commitment processes, eight standing timber and harvest timber pricing mechanisms and several payment methods for standing timber, harvested timber, harvesting and primary and secondary transportation. We also developed 17 generic processes for any planning and execution activities within a WSC, as well as 13 generic planning decisions at the operational level. Three basic designs of planning systems were identified: 1) integrated sourcing and harvesting planning, 2) integrated harvesting and transportation planning, and 3) decoupled sourcing, harvesting and transportation planning. We also identified six logistics techniques to adjust supply to demand. The agility capabilities of the WSC were assessed in four dimensions: customer sensitivity, process integration, information drivers and network integration. The developed methodology used a 0-4 scale to rate how well different enablers and practices, identified along the main processes within a WSC, contributed to each of these four dimensions. A WSC should strive towards proper agility capabilities in response to uncertainty in their environment. The agility capabilities evaluated in the case studies and those theoretically