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The integration of shared renewable resources considering setup times for the parallel machine scheduling problem
No full textInternational audienceWith the advent of Industry 5.0, the rise of advanced technologies, and the fast deployment of human–machine collaborative systems, there is a need for novel approaches to optimizing resources and increasing overall production efficiency. In this regard, we investigate a parallel machine scheduling problem (PMS) where various renewable resources switch among unrelated parallel machines during the operational plan. Each machine can be equipped with a specified number of resources, one at a time, on its left and right sides. We propose a mathematical model for the renewable-resource-constrained parallel machine scheduling problem that minimizes total setup times. We further incorporate realistic features such as non-simultaneous start times of machines, machine eligibility, and due date constraints for jobs. We propose a hybrid meta-heuristic algorithm to solve large instances by employing a novel constructive heuristic and the simulated annealing algorithm. Several instances are tested to validate the solution approach and underline its efficiency for large-sized ones. Through the case of a wiring harness manufacturer, we provide managerial insights on the benefit of either increasing the number of sharing renewable resources or increasing the number of machines in PMS problems, which can reduce total setup times by up to 19%
L’utilité perçue des outils de configuration en ligne: développement et validation d’une échelle de mesure
No full textInternational audienceL’objectif de ce papier est de développer et valider une échelle de mesure de l’utilité perçue des outils de configurations en ligne (UPOC), un élément crucial pour optimiser l’expérience utilisateur et améliorer l’adoption de ces outils. Face à la parcellisation des instruments de mesure actuels du concept, un instrument de mesure intégratif global, de second ordre, permet la prise en compte de l’ensemble de ses dimensions. Il simplifie aussi la gestion des données, leur collecte comme leur analyse. Les données ont été collectées sur un échantillon total de 263 personnes. Deux études ont été réalisées pour construire et valider cet instrument de mesure. Les résultats de la recherche attestent de la fiabilité et de la validité de l’échelle proposée
Parcel container capacity sizing optimization for light cargo logistics in last-mile delivery
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A Novel MILP Model for Human-Robot Collaboration in Assembly Line Balancing under budget constraints
No full textInternational audienceWe develop a novel mathematical approach to enhance the efficiency of assembly line with Human-Robot Collaboration (HRC). The developed model strives to reduce cycle time while considering operational limitations and budgetary factors. It tackles key challenges such as task distribution, setup durations, and the complexities of multi-station, multi-mode assembly processes. Tested across different scenarios, the model demonstrates significant improvements in workflow efficiency and resource allocation. Ultimately, this research presents a structured methodology to foster more flexible and high-performing assembly lines through optimized HRC scheduling
Les communautés de Joueurs et leur hybridation
No full textInternational audienceTable ronde visant à appréhender la notion de communauté en lien avec les joueurs de jeux vidéo. Dans un premier temps la notion de communauté a été mise en question au profit de groupes de fans. En effet, il s'agit pour la notion de communauté de regrouper des personnes qui partagent de nombreuses similitudes. Dans le cas de groupes de fans, il s'agit de mettre en avant que de telles personnes peuvent uniquement partager leur goût pour certains aspects du jeu vidéo : machine, titres vidéoludiques, cosplay, programmation,... Mais, ce n'est sans doute pas suffisant pour considérer qu'ils partagent d'autres points communs. Ce point passé, la question a été de savoir ce que de tels groupes de fans pouvaient apprécier autour de la thématique du jeu vidéo. Ont été passé en revue des aspects en lien avec les machines, les jeux, le retrogaming, la programmation, le let's play, le cosplay, etc. Ce passage en revue avait pour but de mettre en avant la richesse de la culture vidéoludique et montrer des paradoxes : il n'est pas nécessaire d'être joueur pour adhérer à certains groupes de fans. Ces éléments posés, la dernière partie de la table ronde venait questionner comment le marketing et la publicité pouvait cibler de tels groupes
From Individuals to Teams: A Conceptual Model for Group Behavior Integration in Industry 5.0
No full textInternational audienceIn Industry 5.0 environments, integrating human behavior models into scheduling and planning is essential. However, most research in this field focuses on individual modeling, overlooking the significant influence of group dynamics. Beyond isolated interactions, collective decision-making and team behaviors shape system performance, especially when deploying collaborative technologies such as Autonomous Intelligent Vehicles (AIVs) and smart information systems. This paper proposes a conceptual model that incorporates group behaviors into scheduling frameworks, shifting from purely operational goals toward more human-centric, adaptive approaches. By aligning production planning with human needs and behaviors, we advance sustainable, worker-friendly solutions that enhance efficiency, safety, and flexibility, paving the way toward human-centric scheduling and production management
Les attentes des dirigeants de PME en matière d’information extra-financière
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Does the Circular Economy Transition Support Carbon Neutrality? Examining Net-Zero Policy and Stakeholder Impact from the Environmental Justice Viewpoint
No full textInternational audienceThe circular economy is crucial in promoting environmental justice by reducing the uneven burden of environmental hazards on marginalized communities and low-income individuals. The circular economy transition is increasingly a pivotal strategy for achieving carbon neutrality. Recent shifts in stakeholder focus towards carbon neutrality have made net-zero and environmental social and governance (ESG) hot topics to study, as they can lead to environmental justice. This research delves into the significance of net-zero policies and stakeholder pressure in integrating circular economy concepts into supply chains, aiming to establish a carbon-neutral supply chain within the environmental justice framework. Even though there is a lot of literature about the circular economy, not much is known about how it affects the adoption of the circular economy, the involvement of stakeholders, and net zero policy. Specifically, the role of innovation capability in this context has not been fully explored. This research aims to clarify the role of stakeholders in promoting circular economic practices in supply chains and their impact on carbon neutrality. It also examines how net-zero policies and innovation capabilities affect each other. To achieve this, we used structural equation modeling on data from 217 manufacturing firms from October 2023 to January 2024. Findings highlight a positive relationship between stakeholder pressure and circular economy integration, contributing to carbon-neutral supply chain outcomes. Results show net-zero policies moderate the stakeholder and circular economy relationship, with innovative capabilities acting as a partial mediator. This study adds to the literature by explaining the complex relationships between stakeholder pressures, circular economy practices, and the role of net zero policies and innovation capabilities in advancing carbon-neutral supply chains. This research makes a unique contribution to theory by examining the impact of circular economy practices on social well-being and environmental benefits, particularly regarding environmental justice
Temporal Proximity Matters: The Impact of Justice Information Timing on Psychological Contract Breach Resolution
No full textInternational audienceAlthough scholars and practitioners argue that organizations should provide justice information in the aftermath of a psychological contract breach (PC breach) to prevent or reduce violation feelings, it remains unclear whether that information should be provided within a few hours, days, or weeks following a PC breach. We estimated a 2-level time-lagged regression model on experience sampling data from 76 (226 observations), 70 (213 observations), and 70 (344 observations) employees with different intervals to test the durability of informational justice as a moderator on the PC breach-violation feelings relationship. We found that justice information should be provided in close temporal proximity (i.e., within the same day; Study 1) of PC breach to reduce violation feelings. In contrast, neither justice information provided the day (Study 2) or week (Study 3) after a PC breach successfully moderated the PC breach-violation feelings relationship. The current paper underscores the importance of being informationally just in close temporal proximity to a PC breach in line with resolution velocity as an indicator of the effectiveness of the recovery process. We discuss theoretical and practical implications of these findings